From 5690e4863930801a17ef67d279bc5306f2cf6efb Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 8 Apr 2021 16:01:36 +0200 Subject: drm/gem-ttm-helper: Provide helper for struct drm_driver.dumb_map_offset Provides an implementation of struct drm_driver.dumb_map_offset that can be used by TTM-based GEM drivers. Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210408140139.27731-2-tzimmermann@suse.de --- include/drm/drm_gem_ttm_helper.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/drm/drm_gem_ttm_helper.h b/include/drm/drm_gem_ttm_helper.h index 7c6d874910b8..c1aa02bd4c89 100644 --- a/include/drm/drm_gem_ttm_helper.h +++ b/include/drm/drm_gem_ttm_helper.h @@ -5,8 +5,8 @@ #include -#include #include +#include #include #include @@ -24,4 +24,7 @@ void drm_gem_ttm_vunmap(struct drm_gem_object *gem, int drm_gem_ttm_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma); +int drm_gem_ttm_dumb_map_offset(struct drm_file *file, struct drm_device *dev, + uint32_t handle, uint64_t *offset); + #endif -- cgit v1.2.3-71-gd317 From ede0c69ceb3fa4e139ffd95083c2698880c25b6f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 8 Apr 2021 16:01:37 +0200 Subject: drm/vram-helper: Use drm_gem_ttm_dumb_map_offset() VRAM helpers now use drm_gem_ttm_dumb_map_offset() to implement struct drm_driver.dumb_map_offset. v2: * update hibmc as well (kernel test robot) Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210408140139.27731-3-tzimmermann@suse.de --- drivers/gpu/drm/drm_gem_vram_helper.c | 48 ------------------------- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 2 +- include/drm/drm_gem_vram_helper.h | 7 ++-- 3 files changed, 3 insertions(+), 54 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c index 2b7c3a07956d..797200315854 100644 --- a/drivers/gpu/drm/drm_gem_vram_helper.c +++ b/drivers/gpu/drm/drm_gem_vram_helper.c @@ -245,22 +245,6 @@ void drm_gem_vram_put(struct drm_gem_vram_object *gbo) } EXPORT_SYMBOL(drm_gem_vram_put); -/** - * drm_gem_vram_mmap_offset() - Returns a GEM VRAM object's mmap offset - * @gbo: the GEM VRAM object - * - * See drm_vma_node_offset_addr() for more information. - * - * Returns: - * The buffer object's offset for userspace mappings on success, or - * 0 if no offset is allocated. - */ -u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo) -{ - return drm_vma_node_offset_addr(&gbo->bo.base.vma_node); -} -EXPORT_SYMBOL(drm_gem_vram_mmap_offset); - static u64 drm_gem_vram_pg_offset(struct drm_gem_vram_object *gbo) { /* Keep TTM behavior for now, remove when drivers are audited */ @@ -638,38 +622,6 @@ int drm_gem_vram_driver_dumb_create(struct drm_file *file, } EXPORT_SYMBOL(drm_gem_vram_driver_dumb_create); -/** - * drm_gem_vram_driver_dumb_mmap_offset() - \ - Implements &struct drm_driver.dumb_mmap_offset - * @file: DRM file pointer. - * @dev: DRM device. - * @handle: GEM handle - * @offset: Returns the mapping's memory offset on success - * - * Returns: - * 0 on success, or - * a negative errno code otherwise. - */ -int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, - struct drm_device *dev, - uint32_t handle, uint64_t *offset) -{ - struct drm_gem_object *gem; - struct drm_gem_vram_object *gbo; - - gem = drm_gem_object_lookup(file, handle); - if (!gem) - return -ENOENT; - - gbo = drm_gem_vram_of_gem(gem); - *offset = drm_gem_vram_mmap_offset(gbo); - - drm_gem_object_put(gem); - - return 0; -} -EXPORT_SYMBOL(drm_gem_vram_driver_dumb_mmap_offset); - /* * Helpers for struct drm_plane_helper_funcs */ diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c index abd6250d5a14..89edc796deda 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c @@ -60,7 +60,7 @@ static const struct drm_driver hibmc_driver = { .minor = 0, .debugfs_init = drm_vram_mm_debugfs_init, .dumb_create = hibmc_dumb_create, - .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, + .dumb_map_offset = drm_gem_ttm_dumb_map_offset, .gem_prime_mmap = drm_gem_prime_mmap, .irq_handler = hibmc_drm_interrupt, }; diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h index 288055d397d9..27ed7e9243b9 100644 --- a/include/drm/drm_gem_vram_helper.h +++ b/include/drm/drm_gem_vram_helper.h @@ -5,6 +5,7 @@ #include #include +#include #include #include #include @@ -93,7 +94,6 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev, size_t size, unsigned long pg_align); void drm_gem_vram_put(struct drm_gem_vram_object *gbo); -u64 drm_gem_vram_mmap_offset(struct drm_gem_vram_object *gbo); s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo); int drm_gem_vram_pin(struct drm_gem_vram_object *gbo, unsigned long pl_flag); int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo); @@ -113,9 +113,6 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file, int drm_gem_vram_driver_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args); -int drm_gem_vram_driver_dumb_mmap_offset(struct drm_file *file, - struct drm_device *dev, - uint32_t handle, uint64_t *offset); /* * Helpers for struct drm_plane_helper_funcs @@ -149,7 +146,7 @@ void drm_gem_vram_simple_display_pipe_cleanup_fb( #define DRM_GEM_VRAM_DRIVER \ .debugfs_init = drm_vram_mm_debugfs_init, \ .dumb_create = drm_gem_vram_driver_dumb_create, \ - .dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset, \ + .dumb_map_offset = drm_gem_ttm_dumb_map_offset, \ .gem_prime_mmap = drm_gem_prime_mmap /* -- cgit v1.2.3-71-gd317 From 2916059147ea38f76787d7b38dee883da2e9def2 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Mon, 12 Apr 2021 15:10:41 +0200 Subject: drm/aperture: Add infrastructure for aperture ownership Platform devices might operate on firmware framebuffers, such as VESA or EFI. Before a native driver for the graphics hardware can take over the device, it has to remove any platform driver that operates on the firmware framebuffer. Aperture helpers provide the infrastructure for native drivers to remove the generic ones. For now, this only concerns generic fbdev drivers. Code for removing these is provided by drm_fb_helper_remove_conflicting_framebuffers() et al. Simply wrap these functions for now. At a later point, code can be added for generic DRM drivers to acquire firmware framebuffers. v2: * fix docs for drm_aperture_remove_framebuffers() Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Acked-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20210412131043.5787-2-tzimmermann@suse.de --- Documentation/gpu/drm-internals.rst | 12 ++++ drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/drm_aperture.c | 114 ++++++++++++++++++++++++++++++++++++ include/drm/drm_aperture.h | 31 ++++++++++ 4 files changed, 158 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/drm_aperture.c create mode 100644 include/drm/drm_aperture.h (limited to 'include') diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst index 12272b168580..06af044c882f 100644 --- a/Documentation/gpu/drm-internals.rst +++ b/Documentation/gpu/drm-internals.rst @@ -75,6 +75,18 @@ update it, its value is mostly useless. The DRM core prints it to the kernel log at initialization time and passes it to userspace through the DRM_IOCTL_VERSION ioctl. +Managing Ownership of the Framebuffer Aperture +---------------------------------------------- + +.. kernel-doc:: drivers/gpu/drm/drm_aperture.c + :doc: overview + +.. kernel-doc:: include/drm/drm_aperture.h + :internal: + +.. kernel-doc:: drivers/gpu/drm/drm_aperture.c + :export: + Device Instance and Driver Handling ----------------------------------- diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 5279db4392df..89e747fedc00 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -3,7 +3,7 @@ # Makefile for the drm device driver. This driver provides support for the # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. -drm-y := drm_auth.o drm_cache.o \ +drm-y := drm_aperture.o drm_auth.o drm_cache.o \ drm_file.o drm_gem.o drm_ioctl.o drm_irq.o \ drm_drv.o \ drm_sysfs.o drm_hashtab.o drm_mm.o \ diff --git a/drivers/gpu/drm/drm_aperture.c b/drivers/gpu/drm/drm_aperture.c new file mode 100644 index 000000000000..929dcbc0758a --- /dev/null +++ b/drivers/gpu/drm/drm_aperture.c @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: MIT + +#include +#include + +/** + * DOC: overview + * + * A graphics device might be supported by different drivers, but only one + * driver can be active at any given time. Many systems load a generic + * graphics drivers, such as EFI-GOP or VESA, early during the boot process. + * During later boot stages, they replace the generic driver with a dedicated, + * hardware-specific driver. To take over the device the dedicated driver + * first has to remove the generic driver. DRM aperture functions manage + * ownership of DRM framebuffer memory and hand-over between drivers. + * + * DRM drivers should call drm_aperture_remove_conflicting_framebuffers() + * at the top of their probe function. The function removes any generic + * driver that is currently associated with the given framebuffer memory. + * If the framebuffer is located at PCI BAR 0, the rsp code looks as in the + * example given below. + * + * .. code-block:: c + * + * static int remove_conflicting_framebuffers(struct pci_dev *pdev) + * { + * bool primary = false; + * resource_size_t base, size; + * int ret; + * + * base = pci_resource_start(pdev, 0); + * size = pci_resource_len(pdev, 0); + * #ifdef CONFIG_X86 + * primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; + * #endif + * + * return drm_aperture_remove_conflicting_framebuffers(base, size, primary, + * "example driver"); + * } + * + * static int probe(struct pci_dev *pdev) + * { + * int ret; + * + * // Remove any generic drivers... + * ret = remove_conflicting_framebuffers(pdev); + * if (ret) + * return ret; + * + * // ... and initialize the hardware. + * ... + * + * drm_dev_register(); + * + * return 0; + * } + * + * PCI device drivers should call + * drm_aperture_remove_conflicting_pci_framebuffers() and let it detect the + * framebuffer apertures automatically. Device drivers without knowledge of + * the framebuffer's location shall call drm_aperture_remove_framebuffers(), + * which removes all drivers for known framebuffer. + */ + +/** + * drm_aperture_remove_conflicting_framebuffers - remove existing framebuffers in the given range + * @base: the aperture's base address in physical memory + * @size: aperture size in bytes + * @primary: also kick vga16fb if present + * @name: requesting driver name + * + * This function removes graphics device drivers which use memory range described by + * @base and @size. + * + * Returns: + * 0 on success, or a negative errno code otherwise + */ +int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size, + bool primary, const char *name) +{ + struct apertures_struct *a; + int ret; + + a = alloc_apertures(1); + if (!a) + return -ENOMEM; + + a->ranges[0].base = base; + a->ranges[0].size = size; + + ret = drm_fb_helper_remove_conflicting_framebuffers(a, name, primary); + kfree(a); + + return ret; +} +EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers); + +/** + * drm_aperture_remove_conflicting_pci_framebuffers - remove existing framebuffers for PCI devices + * @pdev: PCI device + * @name: requesting driver name + * + * This function removes graphics device drivers using memory range configured + * for any of @pdev's memory bars. The function assumes that PCI device with + * shadowed ROM drives a primary display and so kicks out vga16fb. + * + * Returns: + * 0 on success, or a negative errno code otherwise + */ +int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name) +{ + return drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, name); +} +EXPORT_SYMBOL(drm_aperture_remove_conflicting_pci_framebuffers); diff --git a/include/drm/drm_aperture.h b/include/drm/drm_aperture.h new file mode 100644 index 000000000000..23cc01647ed3 --- /dev/null +++ b/include/drm/drm_aperture.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: MIT */ + +#ifndef _DRM_APERTURE_H_ +#define _DRM_APERTURE_H_ + +#include + +struct pci_dev; + +int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size, + bool primary, const char *name); + +int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name); + +/** + * drm_aperture_remove_framebuffers - remove all existing framebuffers + * @primary: also kick vga16fb if present + * @name: requesting driver name + * + * This function removes all graphics device drivers. Use this function on systems + * that can have their framebuffer located anywhere in memory. + * + * Returns: + * 0 on success, or a negative errno code otherwise + */ +static inline int drm_aperture_remove_framebuffers(bool primary, const char *name) +{ + return drm_aperture_remove_conflicting_framebuffers(0, (resource_size_t)-1, primary, name); +} + +#endif -- cgit v1.2.3-71-gd317 From 603dc7ed917f2f443f966370acf75e817965de97 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Mon, 12 Apr 2021 15:10:43 +0200 Subject: drm/aperture: Inline fbdev conflict helpers into aperture helpers Fbdev's helpers for handling conflicting framebuffer drivers are related to framebuffer apertures, not console emulation. Therefore remove them from drm_fb_helper.h and inline them into the aperture helpers. No functional changes. Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Acked-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20210412131043.5787-4-tzimmermann@suse.de --- drivers/gpu/drm/drm_aperture.c | 23 ++++++++++++++++--- include/drm/drm_fb_helper.h | 51 ------------------------------------------ 2 files changed, 20 insertions(+), 54 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_aperture.c b/drivers/gpu/drm/drm_aperture.c index 929dcbc0758a..e034dd7f9b09 100644 --- a/drivers/gpu/drm/drm_aperture.c +++ b/drivers/gpu/drm/drm_aperture.c @@ -1,7 +1,9 @@ // SPDX-License-Identifier: MIT +#include +#include + #include -#include /** * DOC: overview @@ -78,6 +80,7 @@ int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size, bool primary, const char *name) { +#if IS_REACHABLE(CONFIG_FB) struct apertures_struct *a; int ret; @@ -88,10 +91,13 @@ int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_ a->ranges[0].base = base; a->ranges[0].size = size; - ret = drm_fb_helper_remove_conflicting_framebuffers(a, name, primary); + ret = remove_conflicting_framebuffers(a, name, primary); kfree(a); return ret; +#else + return 0; +#endif } EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers); @@ -109,6 +115,17 @@ EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers); */ int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name) { - return drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, name); + int ret = 0; + + /* + * WARNING: Apparently we must kick fbdev drivers before vgacon, + * otherwise the vga fbdev driver falls over. + */ +#if IS_REACHABLE(CONFIG_FB) + ret = remove_conflicting_pci_framebuffers(pdev, name); +#endif + if (ret == 0) + ret = vga_remove_vgacon(pdev); + return ret; } EXPORT_SYMBOL(drm_aperture_remove_conflicting_pci_framebuffers); diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 3b273f9ca39a..3af4624368d8 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -36,7 +36,6 @@ struct drm_fb_helper; #include #include #include -#include enum mode_set_atomic { LEAVE_ATOMIC_MODE_SET, @@ -451,54 +450,4 @@ drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) #endif -/** - * drm_fb_helper_remove_conflicting_framebuffers - remove firmware-configured framebuffers - * @a: memory range, users of which are to be removed - * @name: requesting driver name - * @primary: also kick vga16fb if present - * - * This function removes framebuffer devices (initialized by firmware/bootloader) - * which use memory range described by @a. If @a is NULL all such devices are - * removed. - */ -static inline int -drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a, - const char *name, bool primary) -{ -#if IS_REACHABLE(CONFIG_FB) - return remove_conflicting_framebuffers(a, name, primary); -#else - return 0; -#endif -} - -/** - * drm_fb_helper_remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices - * @pdev: PCI device - * @name: requesting driver name - * - * This function removes framebuffer devices (eg. initialized by firmware) - * using memory range configured for any of @pdev's memory bars. - * - * The function assumes that PCI device with shadowed ROM drives a primary - * display and so kicks out vga16fb. - */ -static inline int -drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, - const char *name) -{ - int ret = 0; - - /* - * WARNING: Apparently we must kick fbdev drivers before vgacon, - * otherwise the vga fbdev driver falls over. - */ -#if IS_REACHABLE(CONFIG_FB) - ret = remove_conflicting_pci_framebuffers(pdev, name); -#endif - if (ret == 0) - ret = vga_remove_vgacon(pdev); - return ret; -} - #endif -- cgit v1.2.3-71-gd317 From cd7f72e6e7b69ede4e80328e149a187eedf3d146 Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Fri, 16 Apr 2021 11:27:36 +0200 Subject: drm/bridge/synopsys: dw-hdmi: Add an option to suppress loading CEC driver This adds DW-HDMI driver a glue option to disable loading of the CEC sub-driver. On some SoCs, the CEC functionality is enabled in the IP config bits, but the CEC bus is non-functional like on Amlogic SoCs, where the CEC config bit is set but the DW-HDMI CEC signal is not connected to a physical pin, leading to some confusion when the DW-HDMI CEC controller can't communicate on the bus. Reviewed-by: Neil Armstrong Signed-off-by: Jernej Skrabec Signed-off-by: Neil Armstrong Acked-by: Hans Verkuil Link: https://patchwork.freedesktop.org/patch/msgid/20210416092737.1971876-2-narmstrong@baylibre.com --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 2 +- include/drm/bridge/dw_hdmi.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index dda4fa9a1a08..ae97513ef886 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -3421,7 +3421,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, hdmi->audio = platform_device_register_full(&pdevinfo); } - if (config0 & HDMI_CONFIG0_CEC) { + if (!plat_data->disable_cec && (config0 & HDMI_CONFIG0_CEC)) { cec.hdmi = hdmi; cec.ops = &dw_hdmi_cec_ops; cec.irq = irq; diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h index ea34ca146b82..6a5716655619 100644 --- a/include/drm/bridge/dw_hdmi.h +++ b/include/drm/bridge/dw_hdmi.h @@ -153,6 +153,8 @@ struct dw_hdmi_plat_data { const struct dw_hdmi_phy_config *phy_config; int (*configure_phy)(struct dw_hdmi *hdmi, void *data, unsigned long mpixelclock); + + unsigned int disable_cec : 1; }; struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, -- cgit v1.2.3-71-gd317 From 40ce74d1b28d38e5debc14b5a6ddd9071ae2d310 Mon Sep 17 00:00:00 2001 From: Philip Yang Date: Wed, 5 Feb 2020 17:59:15 -0500 Subject: drm/amdkfd: add svm ioctl API Add svm (shared virtual memory) ioctl data structure and API definition. The svm ioctl API is designed to be extensible in the future. All operations are provided by a single IOCTL to preserve ioctl number space. The arguments structure ends with a variable size array of attributes that can be used to set or get one or multiple attributes. Signed-off-by: Philip Yang Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 12 +++ drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c | 4 + drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 + drivers/gpu/drm/amd/amdkfd/kfd_process.c | 1 + include/uapi/linux/kfd_ioctl.h | 130 ++++++++++++++++++++++++++- 5 files changed, 147 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 242e8b28feac..f888c2c673bb 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1744,6 +1744,16 @@ static int kfd_ioctl_smi_events(struct file *filep, return kfd_smi_event_open(dev, &args->anon_fd); } +static int kfd_ioctl_svm(struct file *filep, struct kfd_process *p, void *data) +{ + int r = 0; + + if (p->svm_disabled) + return -EPERM; + + return r; +} + #define AMDKFD_IOCTL_DEF(ioctl, _func, _flags) \ [_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, \ .cmd_drv = 0, .name = #ioctl} @@ -1842,6 +1852,8 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { AMDKFD_IOCTL_DEF(AMDKFD_IOC_SMI_EVENTS, kfd_ioctl_smi_events, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_SVM, kfd_ioctl_svm, 0), }; #define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c index a2c9063076cc..72815e86a3b8 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c @@ -405,6 +405,10 @@ int kfd_init_apertures(struct kfd_process *process) case CHIP_POLARIS12: case CHIP_VEGAM: kfd_init_apertures_vi(pdd, id); + /* VI GPUs cannot support SVM with only + * 40 bits of virtual address space. + */ + process->svm_disabled = true; break; case CHIP_VEGA10: case CHIP_VEGA12: diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index f887f2eb0a66..afc8f879b452 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -809,6 +809,8 @@ struct kfd_process { struct kobject *kobj; struct kobject *kobj_queues; struct attribute attr_pasid; + + bool svm_disabled; }; #define KFD_PROCESS_TABLE_SIZE 5 /* bits: 32 entries */ diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index d40cd6c10096..aaff85c13398 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -1208,6 +1208,7 @@ static struct kfd_process *create_process(const struct task_struct *thread) process->mm = thread->mm; process->lead_thread = thread->group_leader; process->n_pdds = 0; + process->svm_disabled = false; INIT_DELAYED_WORK(&process->eviction_work, evict_process_worker); INIT_DELAYED_WORK(&process->restore_work, restore_process_worker); process->last_restore_timestamp = get_jiffies_64(); diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index bf5e7d7846dd..247b57baa94f 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -30,9 +30,10 @@ * - 1.1 - initial version * - 1.3 - Add SMI events support * - 1.4 - Indicate new SRAM EDC bit in device properties + * - 1.5 - Add SVM API */ #define KFD_IOCTL_MAJOR_VERSION 1 -#define KFD_IOCTL_MINOR_VERSION 4 +#define KFD_IOCTL_MINOR_VERSION 5 struct kfd_ioctl_get_version_args { __u32 major_version; /* from KFD */ @@ -473,6 +474,129 @@ enum kfd_mmio_remap { KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL = 4, }; +/* Guarantee host access to memory */ +#define KFD_IOCTL_SVM_FLAG_HOST_ACCESS 0x00000001 +/* Fine grained coherency between all devices with access */ +#define KFD_IOCTL_SVM_FLAG_COHERENT 0x00000002 +/* Use any GPU in same hive as preferred device */ +#define KFD_IOCTL_SVM_FLAG_HIVE_LOCAL 0x00000004 +/* GPUs only read, allows replication */ +#define KFD_IOCTL_SVM_FLAG_GPU_RO 0x00000008 +/* Allow execution on GPU */ +#define KFD_IOCTL_SVM_FLAG_GPU_EXEC 0x00000010 +/* GPUs mostly read, may allow similar optimizations as RO, but writes fault */ +#define KFD_IOCTL_SVM_FLAG_GPU_READ_MOSTLY 0x00000020 + +/** + * kfd_ioctl_svm_op - SVM ioctl operations + * + * @KFD_IOCTL_SVM_OP_SET_ATTR: Modify one or more attributes + * @KFD_IOCTL_SVM_OP_GET_ATTR: Query one or more attributes + */ +enum kfd_ioctl_svm_op { + KFD_IOCTL_SVM_OP_SET_ATTR, + KFD_IOCTL_SVM_OP_GET_ATTR +}; + +/** kfd_ioctl_svm_location - Enum for preferred and prefetch locations + * + * GPU IDs are used to specify GPUs as preferred and prefetch locations. + * Below definitions are used for system memory or for leaving the preferred + * location unspecified. + */ +enum kfd_ioctl_svm_location { + KFD_IOCTL_SVM_LOCATION_SYSMEM = 0, + KFD_IOCTL_SVM_LOCATION_UNDEFINED = 0xffffffff +}; + +/** + * kfd_ioctl_svm_attr_type - SVM attribute types + * + * @KFD_IOCTL_SVM_ATTR_PREFERRED_LOC: gpuid of the preferred location, 0 for + * system memory + * @KFD_IOCTL_SVM_ATTR_PREFETCH_LOC: gpuid of the prefetch location, 0 for + * system memory. Setting this triggers an + * immediate prefetch (migration). + * @KFD_IOCTL_SVM_ATTR_ACCESS: + * @KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE: + * @KFD_IOCTL_SVM_ATTR_NO_ACCESS: specify memory access for the gpuid given + * by the attribute value + * @KFD_IOCTL_SVM_ATTR_SET_FLAGS: bitmask of flags to set (see + * KFD_IOCTL_SVM_FLAG_...) + * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS: bitmask of flags to clear + * @KFD_IOCTL_SVM_ATTR_GRANULARITY: migration granularity + * (log2 num pages) + */ +enum kfd_ioctl_svm_attr_type { + KFD_IOCTL_SVM_ATTR_PREFERRED_LOC, + KFD_IOCTL_SVM_ATTR_PREFETCH_LOC, + KFD_IOCTL_SVM_ATTR_ACCESS, + KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE, + KFD_IOCTL_SVM_ATTR_NO_ACCESS, + KFD_IOCTL_SVM_ATTR_SET_FLAGS, + KFD_IOCTL_SVM_ATTR_CLR_FLAGS, + KFD_IOCTL_SVM_ATTR_GRANULARITY +}; + +/** + * kfd_ioctl_svm_attribute - Attributes as pairs of type and value + * + * The meaning of the @value depends on the attribute type. + * + * @type: attribute type (see enum @kfd_ioctl_svm_attr_type) + * @value: attribute value + */ +struct kfd_ioctl_svm_attribute { + __u32 type; + __u32 value; +}; + +/** + * kfd_ioctl_svm_args - Arguments for SVM ioctl + * + * @op specifies the operation to perform (see enum + * @kfd_ioctl_svm_op). @start_addr and @size are common for all + * operations. + * + * A variable number of attributes can be given in @attrs. + * @nattr specifies the number of attributes. New attributes can be + * added in the future without breaking the ABI. If unknown attributes + * are given, the function returns -EINVAL. + * + * @KFD_IOCTL_SVM_OP_SET_ATTR sets attributes for a virtual address + * range. It may overlap existing virtual address ranges. If it does, + * the existing ranges will be split such that the attribute changes + * only apply to the specified address range. + * + * @KFD_IOCTL_SVM_OP_GET_ATTR returns the intersection of attributes + * over all memory in the given range and returns the result as the + * attribute value. If different pages have different preferred or + * prefetch locations, 0xffffffff will be returned for + * @KFD_IOCTL_SVM_ATTR_PREFERRED_LOC or + * @KFD_IOCTL_SVM_ATTR_PREFETCH_LOC resepctively. For + * @KFD_IOCTL_SVM_ATTR_SET_FLAGS, flags of all pages will be + * aggregated by bitwise AND. The minimum migration granularity + * throughout the range will be returned for + * @KFD_IOCTL_SVM_ATTR_GRANULARITY. + * + * Querying of accessibility attributes works by initializing the + * attribute type to @KFD_IOCTL_SVM_ATTR_ACCESS and the value to the + * GPUID being queried. Multiple attributes can be given to allow + * querying multiple GPUIDs. The ioctl function overwrites the + * attribute type to indicate the access for the specified GPU. + * + * @KFD_IOCTL_SVM_ATTR_CLR_FLAGS is invalid for + * @KFD_IOCTL_SVM_OP_GET_ATTR. + */ +struct kfd_ioctl_svm_args { + __u64 start_addr; + __u64 size; + __u32 op; + __u32 nattr; + /* Variable length array of attributes */ + struct kfd_ioctl_svm_attribute attrs[0]; +}; + #define AMDKFD_IOCTL_BASE 'K' #define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr) #define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type) @@ -573,7 +697,9 @@ enum kfd_mmio_remap { #define AMDKFD_IOC_SMI_EVENTS \ AMDKFD_IOWR(0x1F, struct kfd_ioctl_smi_events_args) +#define AMDKFD_IOC_SVM AMDKFD_IOWR(0x20, struct kfd_ioctl_svm_args) + #define AMDKFD_COMMAND_START 0x01 -#define AMDKFD_COMMAND_END 0x20 +#define AMDKFD_COMMAND_END 0x21 #endif -- cgit v1.2.3-71-gd317 From 0f7b5c44d4c53710993e4773bd6eaf171f1888e6 Mon Sep 17 00:00:00 2001 From: Alex Sierra Date: Thu, 28 May 2020 18:27:05 -0500 Subject: drm/amdkfd: add ioctl to configure and query xnack retries Xnack retries are used for page fault recovery. Some AMD chip families support continuously retry while page table entries are invalid. The driver must handle the page fault interrupt and fill in a valid entry for the GPU to continue. This ioctl allows to enable/disable XNACK retries per KFD process. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 28 +++++++++++++++++++++ include/uapi/linux/kfd_ioctl.h | 43 +++++++++++++++++++++++++++++++- 2 files changed, 70 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index c31ce8c88df4..913cc29d8857 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1745,6 +1745,31 @@ static int kfd_ioctl_smi_events(struct file *filep, return kfd_smi_event_open(dev, &args->anon_fd); } +static int kfd_ioctl_set_xnack_mode(struct file *filep, + struct kfd_process *p, void *data) +{ + struct kfd_ioctl_set_xnack_mode_args *args = data; + int r = 0; + + mutex_lock(&p->mutex); + if (args->xnack_enabled >= 0) { + if (!list_empty(&p->pqm.queues)) { + pr_debug("Process has user queues running\n"); + mutex_unlock(&p->mutex); + return -EBUSY; + } + if (args->xnack_enabled && !kfd_process_xnack_mode(p, true)) + r = -EPERM; + else + p->xnack_enabled = args->xnack_enabled; + } else { + args->xnack_enabled = p->xnack_enabled; + } + mutex_unlock(&p->mutex); + + return r; +} + static int kfd_ioctl_svm(struct file *filep, struct kfd_process *p, void *data) { struct kfd_ioctl_svm_args *args = data; @@ -1871,6 +1896,9 @@ static const struct amdkfd_ioctl_desc amdkfd_ioctls[] = { kfd_ioctl_smi_events, 0), AMDKFD_IOCTL_DEF(AMDKFD_IOC_SVM, kfd_ioctl_svm, 0), + + AMDKFD_IOCTL_DEF(AMDKFD_IOC_SET_XNACK_MODE, + kfd_ioctl_set_xnack_mode, 0), }; #define AMDKFD_CORE_IOCTL_COUNT ARRAY_SIZE(amdkfd_ioctls) diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h index 247b57baa94f..3cb5b5dd9f77 100644 --- a/include/uapi/linux/kfd_ioctl.h +++ b/include/uapi/linux/kfd_ioctl.h @@ -597,6 +597,44 @@ struct kfd_ioctl_svm_args { struct kfd_ioctl_svm_attribute attrs[0]; }; +/** + * kfd_ioctl_set_xnack_mode_args - Arguments for set_xnack_mode + * + * @xnack_enabled: [in/out] Whether to enable XNACK mode for this process + * + * @xnack_enabled indicates whether recoverable page faults should be + * enabled for the current process. 0 means disabled, positive means + * enabled, negative means leave unchanged. If enabled, virtual address + * translations on GFXv9 and later AMD GPUs can return XNACK and retry + * the access until a valid PTE is available. This is used to implement + * device page faults. + * + * On output, @xnack_enabled returns the (new) current mode (0 or + * positive). Therefore, a negative input value can be used to query + * the current mode without changing it. + * + * The XNACK mode fundamentally changes the way SVM managed memory works + * in the driver, with subtle effects on application performance and + * functionality. + * + * Enabling XNACK mode requires shader programs to be compiled + * differently. Furthermore, not all GPUs support changing the mode + * per-process. Therefore changing the mode is only allowed while no + * user mode queues exist in the process. This ensure that no shader + * code is running that may be compiled for the wrong mode. And GPUs + * that cannot change to the requested mode will prevent the XNACK + * mode from occurring. All GPUs used by the process must be in the + * same XNACK mode. + * + * GFXv8 or older GPUs do not support 48 bit virtual addresses or SVM. + * Therefore those GPUs are not considered for the XNACK mode switch. + * + * Return: 0 on success, -errno on failure + */ +struct kfd_ioctl_set_xnack_mode_args { + __s32 xnack_enabled; +}; + #define AMDKFD_IOCTL_BASE 'K' #define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr) #define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type) @@ -699,7 +737,10 @@ struct kfd_ioctl_svm_args { #define AMDKFD_IOC_SVM AMDKFD_IOWR(0x20, struct kfd_ioctl_svm_args) +#define AMDKFD_IOC_SET_XNACK_MODE \ + AMDKFD_IOWR(0x21, struct kfd_ioctl_set_xnack_mode_args) + #define AMDKFD_COMMAND_START 0x01 -#define AMDKFD_COMMAND_END 0x21 +#define AMDKFD_COMMAND_END 0x22 #endif -- cgit v1.2.3-71-gd317 From d02117f8efaa5fbc37437df1ae955a147a2a424a Mon Sep 17 00:00:00 2001 From: Christian König Date: Sat, 17 Apr 2021 19:09:30 +0200 Subject: drm/ttm: remove special handling for non GEM drivers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit vmwgfx is the only driver actually using this. Move the handling into the driver instead. Signed-off-by: Christian König Acked-by: Huang Rui Reviewed-by: Zack Rusin Link: https://patchwork.freedesktop.org/patch/msgid/20210419092853.1605-1-christian.koenig@amd.com --- drivers/gpu/drm/ttm/ttm_bo.c | 11 ----------- drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 10 ++++++++++ include/drm/ttm/ttm_bo_api.h | 19 ------------------- 3 files changed, 10 insertions(+), 30 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index aed8519412b0..5b332206c1ac 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -460,8 +460,6 @@ static void ttm_bo_release(struct kref *kref) atomic_dec(&ttm_glob.bo_count); dma_fence_put(bo->moving); - if (!ttm_bo_uses_embedded_gem_object(bo)) - dma_resv_fini(&bo->base._resv); bo->destroy(bo); } @@ -1056,15 +1054,6 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, } else { bo->base.resv = &bo->base._resv; } - if (!ttm_bo_uses_embedded_gem_object(bo)) { - /* - * bo.base is not initialized, so we have to setup the - * struct elements we want use regardless. - */ - bo->base.size = size; - dma_resv_init(&bo->base._resv); - drm_vma_node_reset(&bo->base.vma_node); - } atomic_inc(&ttm_glob.bo_count); /* diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c index 50e529a01677..587314d57991 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c @@ -460,6 +460,7 @@ void vmw_bo_bo_free(struct ttm_buffer_object *bo) WARN_ON(vmw_bo->dirty); WARN_ON(!RB_EMPTY_ROOT(&vmw_bo->res_tree)); vmw_bo_unmap(vmw_bo); + dma_resv_fini(&bo->base._resv); kfree(vmw_bo); } @@ -512,6 +513,11 @@ int vmw_bo_create_kernel(struct vmw_private *dev_priv, unsigned long size, if (unlikely(ret)) goto error_free; + + bo->base.size = size; + dma_resv_init(&bo->base._resv); + drm_vma_node_reset(&bo->base.vma_node); + ret = ttm_bo_init_reserved(&dev_priv->bdev, bo, size, ttm_bo_type_device, placement, 0, &ctx, NULL, NULL, NULL); @@ -570,6 +576,10 @@ int vmw_bo_init(struct vmw_private *dev_priv, if (unlikely(ret)) return ret; + vmw_bo->base.base.size = size; + dma_resv_init(&vmw_bo->base.base._resv); + drm_vma_node_reset(&vmw_bo->base.base.vma_node); + ret = ttm_bo_init_reserved(bdev, &vmw_bo->base, size, ttm_bo_type_device, placement, 0, &ctx, NULL, NULL, bo_free); diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 3587f660e8f4..e88da481a976 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -562,25 +562,6 @@ ssize_t ttm_bo_io(struct ttm_device *bdev, struct file *filp, int ttm_bo_swapout(struct ttm_buffer_object *bo, struct ttm_operation_ctx *ctx, gfp_t gfp_flags); -/** - * ttm_bo_uses_embedded_gem_object - check if the given bo uses the - * embedded drm_gem_object. - * - * Most ttm drivers are using gem too, so the embedded - * ttm_buffer_object.base will be initialized by the driver (before - * calling ttm_bo_init). It is also possible to use ttm without gem - * though (vmwgfx does that). - * - * This helper will figure whenever a given ttm bo is a gem object too - * or not. - * - * @bo: The bo to check. - */ -static inline bool ttm_bo_uses_embedded_gem_object(struct ttm_buffer_object *bo) -{ - return bo->base.dev != NULL; -} - /** * ttm_bo_pin - Pin the buffer object. * @bo: The buffer object to pin -- cgit v1.2.3-71-gd317 From c777dc9e793342ecdfc95045d2127a3ea32791a0 Mon Sep 17 00:00:00 2001 From: Christian König Date: Fri, 5 Feb 2021 16:17:07 +0100 Subject: drm/ttm: move the page_alignment into the BO v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The alignment is a constant property and shouldn't change. v2: move documentation as well as suggested by Matthew. Signed-off-by: Christian König Reviewed-by: Matthew Auld Link: https://patchwork.freedesktop.org/patch/msgid/20210413135248.1266-4-christian.koenig@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 5 +++-- drivers/gpu/drm/radeon/radeon_object.h | 2 +- drivers/gpu/drm/ttm/ttm_bo.c | 3 +-- drivers/gpu/drm/ttm/ttm_range_manager.c | 5 ++--- drivers/gpu/drm/vmwgfx/vmwgfx_thp.c | 15 ++++++++------- include/drm/ttm/ttm_bo_api.h | 2 ++ include/drm/ttm/ttm_resource.h | 2 -- 10 files changed, 20 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index b443907afcea..f1c397be383d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -763,7 +763,7 @@ int amdgpu_gem_op_ioctl(struct drm_device *dev, void *data, void __user *out = u64_to_user_ptr(args->value); info.bo_size = robj->tbo.base.size; - info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT; + info.alignment = robj->tbo.page_alignment << PAGE_SHIFT; info.domains = robj->preferred_domains; info.domain_flags = robj->flags; amdgpu_bo_unreserve(robj); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 8980329cded0..cc48dfa83fe1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -207,7 +207,7 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man, spin_lock(&mgr->lock); r = drm_mm_insert_node_in_range(&mgr->mm, &node->node, mem->num_pages, - mem->page_alignment, 0, place->fpfn, + tbo->page_alignment, 0, place->fpfn, place->lpfn, DRM_MM_INSERT_BEST); spin_unlock(&mgr->lock); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index 9ac37569823f..ae4a68db87c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -184,7 +184,7 @@ static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo) static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo) { - return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE; + return (bo->tbo.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE; } /** diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index c89b66bb70e2..a472de7eba3e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -451,7 +451,8 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, /* default to 2MB */ pages_per_node = (2UL << (20UL - PAGE_SHIFT)); #endif - pages_per_node = max((uint32_t)pages_per_node, mem->page_alignment); + pages_per_node = max((uint32_t)pages_per_node, + tbo->page_alignment); num_nodes = DIV_ROUND_UP(mem->num_pages, pages_per_node); } @@ -490,7 +491,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man, for (; pages_left; ++i) { unsigned long pages = min(pages_left, pages_per_node); - uint32_t alignment = mem->page_alignment; + uint32_t alignment = tbo->page_alignment; if (pages == pages_per_node) alignment = pages_per_node; diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h index 9896d8231fe5..fd4116bdde0f 100644 --- a/drivers/gpu/drm/radeon/radeon_object.h +++ b/drivers/gpu/drm/radeon/radeon_object.h @@ -119,7 +119,7 @@ static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo) static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo) { - return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE; + return (bo->tbo.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE; } /** diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 5b332206c1ac..df63a07a70de 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -903,7 +903,6 @@ static int ttm_bo_move_buffer(struct ttm_buffer_object *bo, memset(&hop, 0, sizeof(hop)); mem.num_pages = PAGE_ALIGN(bo->base.size) >> PAGE_SHIFT; - mem.page_alignment = bo->mem.page_alignment; mem.bus.offset = 0; mem.bus.addr = NULL; mem.mm_node = NULL; @@ -1038,10 +1037,10 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, INIT_LIST_HEAD(&bo->ddestroy); bo->bdev = bdev; bo->type = type; + bo->page_alignment = page_alignment; bo->mem.mem_type = TTM_PL_SYSTEM; bo->mem.num_pages = PAGE_ALIGN(size) >> PAGE_SHIFT; bo->mem.mm_node = NULL; - bo->mem.page_alignment = page_alignment; bo->mem.bus.offset = 0; bo->mem.bus.addr = NULL; bo->moving = NULL; diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c index b1e3f30f7e2d..b9d5da6e6a81 100644 --- a/drivers/gpu/drm/ttm/ttm_range_manager.c +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c @@ -79,9 +79,8 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man, mode = DRM_MM_INSERT_HIGH; spin_lock(&rman->lock); - ret = drm_mm_insert_node_in_range(mm, node, - mem->num_pages, - mem->page_alignment, 0, + ret = drm_mm_insert_node_in_range(mm, node, mem->num_pages, + bo->page_alignment, 0, place->fpfn, lpfn, mode); spin_unlock(&rman->lock); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c index eb63cbe64909..5ccc35b3194c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_thp.c @@ -28,15 +28,16 @@ static struct vmw_thp_manager *to_thp_manager(struct ttm_resource_manager *man) static const struct ttm_resource_manager_func vmw_thp_func; -static int vmw_thp_insert_aligned(struct drm_mm *mm, struct drm_mm_node *node, +static int vmw_thp_insert_aligned(struct ttm_buffer_object *bo, + struct drm_mm *mm, struct drm_mm_node *node, unsigned long align_pages, const struct ttm_place *place, struct ttm_resource *mem, unsigned long lpfn, enum drm_mm_insert_mode mode) { - if (align_pages >= mem->page_alignment && - (!mem->page_alignment || align_pages % mem->page_alignment == 0)) { + if (align_pages >= bo->page_alignment && + (!bo->page_alignment || align_pages % bo->page_alignment == 0)) { return drm_mm_insert_node_in_range(mm, node, mem->num_pages, align_pages, 0, @@ -75,7 +76,7 @@ static int vmw_thp_get_node(struct ttm_resource_manager *man, if (IS_ENABLED(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)) { align_pages = (HPAGE_PUD_SIZE >> PAGE_SHIFT); if (mem->num_pages >= align_pages) { - ret = vmw_thp_insert_aligned(mm, node, align_pages, + ret = vmw_thp_insert_aligned(bo, mm, node, align_pages, place, mem, lpfn, mode); if (!ret) goto found_unlock; @@ -84,14 +85,14 @@ static int vmw_thp_get_node(struct ttm_resource_manager *man, align_pages = (HPAGE_PMD_SIZE >> PAGE_SHIFT); if (mem->num_pages >= align_pages) { - ret = vmw_thp_insert_aligned(mm, node, align_pages, place, mem, - lpfn, mode); + ret = vmw_thp_insert_aligned(bo, mm, node, align_pages, place, + mem, lpfn, mode); if (!ret) goto found_unlock; } ret = drm_mm_insert_node_in_range(mm, node, mem->num_pages, - mem->page_alignment, 0, + bo->page_alignment, 0, place->fpfn, lpfn, mode); found_unlock: spin_unlock(&rman->lock); diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index e88da481a976..0d727a091e23 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -86,6 +86,7 @@ struct ttm_tt; * @base: drm_gem_object superclass data. * @bdev: Pointer to the buffer object device structure. * @type: The bo type. + * @page_alignment: Page alignment. * @destroy: Destruction function. If NULL, kfree is used. * @num_pages: Actual number of pages. * @kref: Reference count of this buffer object. When this refcount reaches @@ -123,6 +124,7 @@ struct ttm_buffer_object { struct ttm_device *bdev; enum ttm_bo_type type; + uint32_t page_alignment; void (*destroy) (struct ttm_buffer_object *); /** diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 6164ccf4f308..890b9d369519 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -161,7 +161,6 @@ struct ttm_bus_placement { * @mm_node: Memory manager node. * @size: Requested size of memory region. * @num_pages: Actual size of memory region in pages. - * @page_alignment: Page alignment. * @placement: Placement flags. * @bus: Placement on io bus accessible to the CPU * @@ -172,7 +171,6 @@ struct ttm_resource { void *mm_node; unsigned long start; unsigned long num_pages; - uint32_t page_alignment; uint32_t mem_type; uint32_t placement; struct ttm_bus_placement bus; -- cgit v1.2.3-71-gd317 From 42daecfc2069da98e084e2e2457be2a3d50b0a30 Mon Sep 17 00:00:00 2001 From: Nirmoy Das Date: Thu, 22 Apr 2021 17:20:20 +0200 Subject: drm/amdgpu: remove AMDGPU_GEM_CREATE_SHADOW flag MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove unused AMDGPU_GEM_CREATE_SHADOW flag. Userspace is never allowed to use this. Signed-off-by: Nirmoy Das Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 5 +---- include/uapi/drm/amdgpu_drm.h | 2 -- 2 files changed, 1 insertion(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 39f88e4a8eb5..da6d4ee0a132 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -649,8 +649,7 @@ int amdgpu_bo_create_shadow(struct amdgpu_device *adev, memset(&bp, 0, sizeof(bp)); bp.size = size; bp.domain = AMDGPU_GEM_DOMAIN_GTT; - bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC | - AMDGPU_GEM_CREATE_SHADOW; + bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC; bp.type = ttm_bo_type_kernel; bp.resv = bo->tbo.base.resv; bp.bo_ptr_size = sizeof(struct amdgpu_bo); @@ -685,7 +684,6 @@ int amdgpu_bo_create_user(struct amdgpu_device *adev, struct amdgpu_bo *bo_ptr; int r; - bp->flags = bp->flags & ~AMDGPU_GEM_CREATE_SHADOW; bp->bo_ptr_size = sizeof(struct amdgpu_bo_user); r = amdgpu_bo_create(adev, bp, &bo_ptr); if (r) @@ -1559,7 +1557,6 @@ u64 amdgpu_bo_print_info(int id, struct amdgpu_bo *bo, struct seq_file *m) amdgpu_bo_print_flag(m, bo, NO_CPU_ACCESS); amdgpu_bo_print_flag(m, bo, CPU_GTT_USWC); amdgpu_bo_print_flag(m, bo, VRAM_CLEARED); - amdgpu_bo_print_flag(m, bo, SHADOW); amdgpu_bo_print_flag(m, bo, VRAM_CONTIGUOUS); amdgpu_bo_print_flag(m, bo, VM_ALWAYS_VALID); amdgpu_bo_print_flag(m, bo, EXPLICIT_SYNC); diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 728566542f8a..2063a1c10f79 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -116,8 +116,6 @@ extern "C" { #define AMDGPU_GEM_CREATE_CPU_GTT_USWC (1 << 2) /* Flag that the memory should be in VRAM and cleared */ #define AMDGPU_GEM_CREATE_VRAM_CLEARED (1 << 3) -/* Flag that create shadow bo(GTT) while allocating vram bo */ -#define AMDGPU_GEM_CREATE_SHADOW (1 << 4) /* Flag that allocating the BO should use linear VRAM */ #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5) /* Flag that BO is always valid in this VM */ -- cgit v1.2.3-71-gd317 From 304a351957fccf0b2bb05c8c6e4097e9b1276ace Mon Sep 17 00:00:00 2001 From: Joseph Kogut Date: Thu, 22 Apr 2021 19:02:44 -0700 Subject: drm: remove legacy drm_pci_alloc/free abstraction The drm_pci_alloc/free abstraction of the dma-api is no longer required, remove it. Signed-off-by: Joseph Kogut Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210423020248.3427369-2-joseph.kogut@gmail.com --- drivers/gpu/drm/drm_pci.c | 58 ----------------------------------------------- include/drm/drm_legacy.h | 4 ---- 2 files changed, 62 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 2294a1580d35..1a1a2d4046e9 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -41,64 +41,6 @@ /* List of devices hanging off drivers with stealth attach. */ static LIST_HEAD(legacy_dev_list); static DEFINE_MUTEX(legacy_dev_list_lock); - -/** - * drm_pci_alloc - Allocate a PCI consistent memory block, for DMA. - * @dev: DRM device - * @size: size of block to allocate - * @align: alignment of block - * - * FIXME: This is a needless abstraction of the Linux dma-api and should be - * removed. - * - * Return: A handle to the allocated memory block on success or NULL on - * failure. - */ -drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t align) -{ - drm_dma_handle_t *dmah; - - /* pci_alloc_consistent only guarantees alignment to the smallest - * PAGE_SIZE order which is greater than or equal to the requested size. - * Return NULL here for now to make sure nobody tries for larger alignment - */ - if (align > size) - return NULL; - - dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL); - if (!dmah) - return NULL; - - dmah->size = size; - dmah->vaddr = dma_alloc_coherent(dev->dev, size, - &dmah->busaddr, - GFP_KERNEL); - - if (dmah->vaddr == NULL) { - kfree(dmah); - return NULL; - } - - return dmah; -} -EXPORT_SYMBOL(drm_pci_alloc); - -/** - * drm_pci_free - Free a PCI consistent memory block - * @dev: DRM device - * @dmah: handle to memory block - * - * FIXME: This is a needless abstraction of the Linux dma-api and should be - * removed. - */ -void drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah) -{ - dma_free_coherent(dev->dev, dmah->size, dmah->vaddr, - dmah->busaddr); - kfree(dmah); -} - -EXPORT_SYMBOL(drm_pci_free); #endif static int drm_get_pci_domain(struct drm_device *dev) diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h index 8ed04e9be997..faf64319be76 100644 --- a/include/drm/drm_legacy.h +++ b/include/drm/drm_legacy.h @@ -194,10 +194,6 @@ void drm_legacy_idlelock_release(struct drm_lock_data *lock); #ifdef CONFIG_PCI -struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, - size_t align); -void drm_pci_free(struct drm_device *dev, struct drm_dma_handle *dmah); - int drm_legacy_pci_init(const struct drm_driver *driver, struct pci_driver *pdriver); void drm_legacy_pci_exit(const struct drm_driver *driver, -- cgit v1.2.3-71-gd317 From 6cba3fe433415b2549c909ce72601902c8254a83 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:42:55 -0400 Subject: drm/dp: Add backpointer to drm_device in drm_dp_aux This is something that we've wanted for a while now: the ability to actually look up the respective drm_device for a given drm_dp_aux struct. This will also allow us to transition over to using the drm_dbg_*() helpers for debug message printing, as we'll finally have a drm_device to reference for doing so. Note that there is one limitation with this - because some DP AUX adapters exist as platform devices which are initialized independently of their respective DRM devices, one cannot rely on drm_dp_aux->drm_dev to always be non-NULL until drm_dp_aux_register() has been called. We make sure to point this out in the documentation for struct drm_dp_aux. v3: * Add WARN_ON_ONCE() to drm_dp_aux_register() if drm_dev isn't filled out Signed-off-by: Lyude Paul Acked-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-4-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 2 ++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 1 + drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 1 + drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 1 + drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1 + drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 1 + drivers/gpu/drm/bridge/tc358767.c | 1 + drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 + drivers/gpu/drm/drm_dp_aux_dev.c | 6 ++++++ drivers/gpu/drm/drm_dp_helper.c | 2 ++ drivers/gpu/drm/drm_dp_mst_topology.c | 1 + drivers/gpu/drm/i915/display/intel_dp_aux.c | 1 + drivers/gpu/drm/msm/edp/edp.h | 3 +-- drivers/gpu/drm/msm/edp/edp_aux.c | 5 +++-- drivers/gpu/drm/msm/edp/edp_ctrl.c | 2 +- drivers/gpu/drm/nouveau/nouveau_connector.c | 1 + drivers/gpu/drm/radeon/atombios_dp.c | 1 + drivers/gpu/drm/tegra/dpaux.c | 1 + drivers/gpu/drm/xlnx/zynqmp_dp.c | 1 + include/drm/drm_dp_helper.h | 9 ++++++++- 20 files changed, 36 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index a3ba9ca11e98..062625a8a4ec 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -188,6 +188,8 @@ void amdgpu_atombios_dp_aux_init(struct amdgpu_connector *amdgpu_connector) { amdgpu_connector->ddc_bus->rec.hpd = amdgpu_connector->hpd.hpd; amdgpu_connector->ddc_bus->aux.transfer = amdgpu_atombios_dp_aux_transfer; + amdgpu_connector->ddc_bus->aux.drm_dev = amdgpu_connector->base.dev; + drm_dp_aux_init(&amdgpu_connector->ddc_bus->aux); amdgpu_connector->ddc_bus->has_aux = true; } diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 73cdb9fe981a..997567f6f0ba 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -433,6 +433,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, kasprintf(GFP_KERNEL, "AMDGPU DM aux hw bus %d", link_index); aconnector->dm_dp_aux.aux.transfer = dm_dp_aux_transfer; + aconnector->dm_dp_aux.aux.drm_dev = dm->ddev; aconnector->dm_dp_aux.ddc_service = aconnector->dc_link->ddc; drm_dp_aux_init(&aconnector->dm_dp_aux.aux); diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c index aa6cda458eb9..e33cd077595a 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c @@ -537,6 +537,7 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge, /* Register aux channel */ anx6345->aux.name = "DP-AUX"; anx6345->aux.dev = &anx6345->client->dev; + anx6345->aux.drm_dev = bridge->dev; anx6345->aux.transfer = anx6345_aux_transfer; err = drm_dp_aux_register(&anx6345->aux); diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c index f20558618220..5e6a0ed39199 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c @@ -905,6 +905,7 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge, /* Register aux channel */ anx78xx->aux.name = "DP-AUX"; anx78xx->aux.dev = &anx78xx->client->dev; + anx78xx->aux.drm_dev = bridge->dev; anx78xx->aux.transfer = anx78xx_aux_transfer; err = drm_dp_aux_register(&anx78xx->aux); diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index f115233b1cb9..550814ca2139 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1765,6 +1765,7 @@ int analogix_dp_bind(struct analogix_dp_device *dp, struct drm_device *drm_dev) dp->aux.name = "DP-AUX"; dp->aux.transfer = analogix_dpaux_transfer; dp->aux.dev = dp->dev; + dp->aux.drm_dev = drm_dev; ret = drm_dp_aux_register(&dp->aux); if (ret) diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c index 49e4c340f1de..0cd8f40fb690 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -1719,6 +1719,7 @@ static int cdns_mhdp_attach(struct drm_bridge *bridge, dev_dbg(mhdp->dev, "%s\n", __func__); + mhdp->aux.drm_dev = bridge->dev; ret = drm_dp_aux_register(&mhdp->aux); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index da89922721ed..23a6f90b694b 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1414,6 +1414,7 @@ static int tc_bridge_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; + tc->aux.drm_dev = drm; ret = drm_dp_aux_register(&tc->aux); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 51db30d573c1..56706714561f 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -350,6 +350,7 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } + pdata->aux.drm_dev = bridge->dev; ret = drm_dp_aux_register(&pdata->aux); if (ret < 0) { drm_err(bridge->dev, "Failed to register DP AUX channel: %d\n", ret); diff --git a/drivers/gpu/drm/drm_dp_aux_dev.c b/drivers/gpu/drm/drm_dp_aux_dev.c index e25181bf2c48..06b374cae956 100644 --- a/drivers/gpu/drm/drm_dp_aux_dev.c +++ b/drivers/gpu/drm/drm_dp_aux_dev.c @@ -278,6 +278,12 @@ void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux) if (!aux_dev) /* attach must have failed */ return; + /* + * As some AUX adapters may exist as platform devices which outlive their respective DRM + * devices, we clear drm_dev to ensure that we never accidentally reference a stale pointer + */ + aux->drm_dev = NULL; + mutex_lock(&aux_idr_mutex); idr_remove(&aux_idr, aux_dev->index); mutex_unlock(&aux_idr_mutex); diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index cb2f53e56685..ad73d7264743 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1767,6 +1767,8 @@ int drm_dp_aux_register(struct drm_dp_aux *aux) { int ret; + WARN_ON_ONCE(!aux->drm_dev); + if (!aux->ddc.algo) drm_dp_aux_init(aux); diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 159014455fab..276f7f054d62 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2350,6 +2350,7 @@ drm_dp_mst_add_port(struct drm_device *dev, port->aux.is_remote = true; /* initialize the MST downstream port's AUX crc work queue */ + port->aux.drm_dev = dev; drm_dp_remote_aux_init(&port->aux); /* diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index 7e83bc2cc34a..c4b446d6a042 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -682,6 +682,7 @@ void intel_dp_aux_init(struct intel_dp *intel_dp) else intel_dp->get_aux_send_ctl = g4x_get_aux_send_ctl; + intel_dp->aux.drm_dev = &dev_priv->drm; drm_dp_aux_init(&intel_dp->aux); /* Failure to allocate our preferred name is not critical */ diff --git a/drivers/gpu/drm/msm/edp/edp.h b/drivers/gpu/drm/msm/edp/edp.h index eb34243dad53..8590f2ce274d 100644 --- a/drivers/gpu/drm/msm/edp/edp.h +++ b/drivers/gpu/drm/msm/edp/edp.h @@ -46,8 +46,7 @@ void edp_bridge_destroy(struct drm_bridge *bridge); struct drm_connector *msm_edp_connector_init(struct msm_edp *edp); /* AUX */ -void *msm_edp_aux_init(struct device *dev, void __iomem *regbase, - struct drm_dp_aux **drm_aux); +void *msm_edp_aux_init(struct msm_edp *edp, void __iomem *regbase, struct drm_dp_aux **drm_aux); void msm_edp_aux_destroy(struct device *dev, struct edp_aux *aux); irqreturn_t msm_edp_aux_irq(struct edp_aux *aux, u32 isr); void msm_edp_aux_ctrl(struct edp_aux *aux, int enable); diff --git a/drivers/gpu/drm/msm/edp/edp_aux.c b/drivers/gpu/drm/msm/edp/edp_aux.c index df10a0196d94..e3d85c622cfb 100644 --- a/drivers/gpu/drm/msm/edp/edp_aux.c +++ b/drivers/gpu/drm/msm/edp/edp_aux.c @@ -184,9 +184,9 @@ unlock_exit: return ret; } -void *msm_edp_aux_init(struct device *dev, void __iomem *regbase, - struct drm_dp_aux **drm_aux) +void *msm_edp_aux_init(struct msm_edp *edp, void __iomem *regbase, struct drm_dp_aux **drm_aux) { + struct device *dev = &edp->pdev->dev; struct edp_aux *aux = NULL; int ret; @@ -201,6 +201,7 @@ void *msm_edp_aux_init(struct device *dev, void __iomem *regbase, aux->drm_aux.name = "msm_edp_aux"; aux->drm_aux.dev = dev; + aux->drm_aux.drm_dev = edp->dev; aux->drm_aux.transfer = edp_aux_transfer; ret = drm_dp_aux_register(&aux->drm_aux); if (ret) { diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c index 0d9657cc70db..57af3d8b6699 100644 --- a/drivers/gpu/drm/msm/edp/edp_ctrl.c +++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c @@ -1153,7 +1153,7 @@ int msm_edp_ctrl_init(struct msm_edp *edp) } /* Init aux and phy */ - ctrl->aux = msm_edp_aux_init(dev, ctrl->base, &ctrl->drm_aux); + ctrl->aux = msm_edp_aux_init(edp, ctrl->base, &ctrl->drm_aux); if (!ctrl->aux || !ctrl->drm_aux) { pr_err("%s:failed to init aux\n", __func__); return -ENOMEM; diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index c04044be3d32..7f38788a6c2b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1354,6 +1354,7 @@ nouveau_connector_create(struct drm_device *dev, case DRM_MODE_CONNECTOR_DisplayPort: case DRM_MODE_CONNECTOR_eDP: nv_connector->aux.dev = connector->kdev; + nv_connector->aux.drm_dev = dev; nv_connector->aux.transfer = nouveau_connector_aux_xfer; snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x", dcbe->hasht, dcbe->hashm); diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 15b00a347560..c50c504bad50 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -232,6 +232,7 @@ void radeon_dp_aux_init(struct radeon_connector *radeon_connector) radeon_connector->ddc_bus->rec.hpd = radeon_connector->hpd.hpd; radeon_connector->ddc_bus->aux.dev = radeon_connector->base.kdev; + radeon_connector->ddc_bus->aux.drm_dev = radeon_connector->base.dev; if (ASIC_IS_DCE5(rdev)) { if (radeon_auxch) radeon_connector->ddc_bus->aux.transfer = radeon_dp_aux_transfer_native; diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index ea56c6ec25e4..7d7cc90b6fc9 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -719,6 +719,7 @@ int drm_dp_aux_attach(struct drm_dp_aux *aux, struct tegra_output *output) unsigned long timeout; int err; + aux->drm_dev = output->connector.dev; err = drm_dp_aux_register(aux); if (err < 0) return err; diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 59d1fb017da0..7e5e89305028 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -1069,6 +1069,7 @@ static int zynqmp_dp_aux_init(struct zynqmp_dp *dp) dp->aux.name = "ZynqMP DP AUX"; dp->aux.dev = dp->dev; + dp->aux.drm_dev = dp->drm; dp->aux.transfer = zynqmp_dp_aux_transfer; return drm_dp_aux_register(&dp->aux); diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 1e85c2021f2f..95efe37ea9ca 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1840,6 +1840,8 @@ struct drm_dp_aux_cec { * @name: user-visible name of this AUX channel and the I2C-over-AUX adapter * @ddc: I2C adapter that can be used for I2C-over-AUX communication * @dev: pointer to struct device that is the parent for this AUX channel + * @drm_dev: pointer to the &drm_device that owns this AUX channel. Beware, this + * may be %NULL before drm_dp_aux_register() has been called. * @crtc: backpointer to the crtc that is currently using this AUX channel * @hw_mutex: internal mutex used for locking transfers * @crc_work: worker that captures CRCs for each frame @@ -1847,7 +1849,11 @@ struct drm_dp_aux_cec { * @transfer: transfers a message representing a single AUX transaction * * The @dev field should be set to a pointer to the device that implements the - * AUX channel. + * AUX channel. As well, the @drm_dev field should be set to the &drm_device + * that will be using this AUX channel as early as possible. For many graphics + * drivers this should happen before drm_dp_aux_init(), however it's perfectly + * fine to set this field later so long as it's assigned before calling + * drm_dp_aux_register(). * * The @name field may be used to specify the name of the I2C adapter. If set to * %NULL, dev_name() of @dev will be used. @@ -1879,6 +1885,7 @@ struct drm_dp_aux { const char *name; struct i2c_adapter ddc; struct device *dev; + struct drm_device *drm_dev; struct drm_crtc *crtc; struct mutex hw_mutex; struct work_struct crc_work; -- cgit v1.2.3-71-gd317 From 9e98666644569c038ad5cc4fe4e480975879c117 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:42:57 -0400 Subject: drm/dp: Pass drm_dp_aux to drm_dp_link_train_clock_recovery_delay() So that we can start using drm_dbg_*() in drm_dp_link_train_clock_recovery_delay(). Signed-off-by: Lyude Paul Reviewed-by: Laurent Pinchart Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-6-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 2 +- drivers/gpu/drm/drm_dp_helper.c | 3 ++- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 2 +- drivers/gpu/drm/msm/dp/dp_ctrl.c | 2 +- drivers/gpu/drm/msm/edp/edp_ctrl.c | 2 +- drivers/gpu/drm/radeon/atombios_dp.c | 2 +- drivers/gpu/drm/xlnx/zynqmp_dp.c | 2 +- include/drm/drm_dp_helper.h | 4 +++- 8 files changed, 11 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index 062625a8a4ec..92d76f4cfdfc 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -612,7 +612,7 @@ amdgpu_atombios_dp_link_train_cr(struct amdgpu_atombios_dp_link_train_info *dp_i dp_info->tries = 0; voltage = 0xff; while (1) { - drm_dp_link_train_clock_recovery_delay(dp_info->dpcd); + drm_dp_link_train_clock_recovery_delay(dp_info->aux, dp_info->dpcd); if (drm_dp_dpcd_read_link_status(dp_info->aux, dp_info->link_status) <= 0) { diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 9f66153a3c55..f71b035a48b4 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -132,7 +132,8 @@ u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZ } EXPORT_SYMBOL(drm_dp_get_adjust_request_post_cursor); -void drm_dp_link_train_clock_recovery_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux, + const u8 dpcd[DP_RECEIVER_CAP_SIZE]) { unsigned long rd_interval = dpcd[DP_TRAINING_AUX_RD_INTERVAL] & DP_TRAINING_AUX_RD_MASK; diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 5e9c3c74310c..f543b494f052 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -513,7 +513,7 @@ static void intel_dp_link_training_clock_recovery_delay(struct intel_dp *intel_d enum drm_dp_phy dp_phy) { if (dp_phy == DP_PHY_DPRX) - drm_dp_link_train_clock_recovery_delay(intel_dp->dpcd); + drm_dp_link_train_clock_recovery_delay(&intel_dp->aux, intel_dp->dpcd); else drm_dp_lttpr_link_train_clock_recovery_delay(); } diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index 1390f3547fde..264a9eae87d3 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1103,7 +1103,7 @@ static int dp_ctrl_link_train_1(struct dp_ctrl_private *ctrl, tries = 0; old_v_level = ctrl->link->phy_params.v_level; for (tries = 0; tries < maximum_retries; tries++) { - drm_dp_link_train_clock_recovery_delay(ctrl->panel->dpcd); + drm_dp_link_train_clock_recovery_delay(ctrl->aux, ctrl->panel->dpcd); ret = dp_ctrl_read_link_status(ctrl, link_status); if (ret) diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c index 57af3d8b6699..6501598448b4 100644 --- a/drivers/gpu/drm/msm/edp/edp_ctrl.c +++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c @@ -608,7 +608,7 @@ static int edp_start_link_train_1(struct edp_ctrl *ctrl) tries = 0; old_v_level = ctrl->v_level; while (1) { - drm_dp_link_train_clock_recovery_delay(ctrl->dpcd); + drm_dp_link_train_clock_recovery_delay(ctrl->drm_aux, ctrl->dpcd); rlen = drm_dp_dpcd_read_link_status(ctrl->drm_aux, link_status); if (rlen < DP_LINK_STATUS_SIZE) { diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index c50c504bad50..299b9d8da376 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -680,7 +680,7 @@ static int radeon_dp_link_train_cr(struct radeon_dp_link_train_info *dp_info) dp_info->tries = 0; voltage = 0xff; while (1) { - drm_dp_link_train_clock_recovery_delay(dp_info->dpcd); + drm_dp_link_train_clock_recovery_delay(dp_info->aux, dp_info->dpcd); if (drm_dp_dpcd_read_link_status(dp_info->aux, dp_info->link_status) <= 0) { diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 7e5e89305028..e75f67cbae69 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -713,7 +713,7 @@ static int zynqmp_dp_link_train_cr(struct zynqmp_dp *dp) if (ret) return ret; - drm_dp_link_train_clock_recovery_delay(dp->dpcd); + drm_dp_link_train_clock_recovery_delay(&dp->aux, dp->dpcd); ret = drm_dp_dpcd_read_link_status(&dp->aux, link_status); if (ret < 0) return ret; diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 95efe37ea9ca..675ad0029699 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -29,6 +29,7 @@ #include struct drm_device; +struct drm_dp_aux; /* * Unless otherwise noted, all values are from the DP 1.1a spec. Note that @@ -1482,7 +1483,8 @@ u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZ #define DP_LTTPR_COMMON_CAP_SIZE 8 #define DP_LTTPR_PHY_CAP_SIZE 3 -void drm_dp_link_train_clock_recovery_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); +void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux, + const u8 dpcd[DP_RECEIVER_CAP_SIZE]); void drm_dp_lttpr_link_train_clock_recovery_delay(void); void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); void drm_dp_lttpr_link_train_channel_eq_delay(const u8 caps[DP_LTTPR_PHY_CAP_SIZE]); -- cgit v1.2.3-71-gd317 From 0c4fada608c1eb8234fad0f478d8a903f0405094 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:42:58 -0400 Subject: drm/dp: Pass drm_dp_aux to drm_dp*_link_train_channel_eq_delay() So that we can start using drm_dbg_*() for drm_dp_link_train_channel_eq_delay() and drm_dp_lttpr_link_train_channel_eq_delay(). Signed-off-by: Lyude Paul Reviewed-by: Laurent Pinchart Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-7-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 2 +- drivers/gpu/drm/drm_dp_helper.c | 14 +++++++++----- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 4 ++-- drivers/gpu/drm/msm/dp/dp_ctrl.c | 4 ++-- drivers/gpu/drm/msm/edp/edp_ctrl.c | 4 ++-- drivers/gpu/drm/radeon/atombios_dp.c | 2 +- drivers/gpu/drm/xlnx/zynqmp_dp.c | 2 +- include/drm/drm_dp_helper.h | 6 ++++-- 8 files changed, 22 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index 92d76f4cfdfc..f327becb022f 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -677,7 +677,7 @@ amdgpu_atombios_dp_link_train_ce(struct amdgpu_atombios_dp_link_train_info *dp_i dp_info->tries = 0; channel_eq = false; while (1) { - drm_dp_link_train_channel_eq_delay(dp_info->dpcd); + drm_dp_link_train_channel_eq_delay(dp_info->aux, dp_info->dpcd); if (drm_dp_dpcd_read_link_status(dp_info->aux, dp_info->link_status) <= 0) { diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index f71b035a48b4..a2047dae3ab7 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -151,7 +151,8 @@ void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux, } EXPORT_SYMBOL(drm_dp_link_train_clock_recovery_delay); -static void __drm_dp_link_train_channel_eq_delay(unsigned long rd_interval) +static void __drm_dp_link_train_channel_eq_delay(const struct drm_dp_aux *aux, + unsigned long rd_interval) { if (rd_interval > 4) DRM_DEBUG_KMS("AUX interval %lu, out of range (max 4)\n", @@ -165,9 +166,11 @@ static void __drm_dp_link_train_channel_eq_delay(unsigned long rd_interval) usleep_range(rd_interval, rd_interval * 2); } -void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +void drm_dp_link_train_channel_eq_delay(const struct drm_dp_aux *aux, + const u8 dpcd[DP_RECEIVER_CAP_SIZE]) { - __drm_dp_link_train_channel_eq_delay(dpcd[DP_TRAINING_AUX_RD_INTERVAL] & + __drm_dp_link_train_channel_eq_delay(aux, + dpcd[DP_TRAINING_AUX_RD_INTERVAL] & DP_TRAINING_AUX_RD_MASK); } EXPORT_SYMBOL(drm_dp_link_train_channel_eq_delay); @@ -183,13 +186,14 @@ static u8 dp_lttpr_phy_cap(const u8 phy_cap[DP_LTTPR_PHY_CAP_SIZE], int r) return phy_cap[r - DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1]; } -void drm_dp_lttpr_link_train_channel_eq_delay(const u8 phy_cap[DP_LTTPR_PHY_CAP_SIZE]) +void drm_dp_lttpr_link_train_channel_eq_delay(const struct drm_dp_aux *aux, + const u8 phy_cap[DP_LTTPR_PHY_CAP_SIZE]) { u8 interval = dp_lttpr_phy_cap(phy_cap, DP_TRAINING_AUX_RD_INTERVAL_PHY_REPEATER1) & DP_TRAINING_AUX_RD_MASK; - __drm_dp_link_train_channel_eq_delay(interval); + __drm_dp_link_train_channel_eq_delay(aux, interval); } EXPORT_SYMBOL(drm_dp_lttpr_link_train_channel_eq_delay); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index f543b494f052..dd7423d3c562 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -665,11 +665,11 @@ intel_dp_link_training_channel_equalization_delay(struct intel_dp *intel_dp, enum drm_dp_phy dp_phy) { if (dp_phy == DP_PHY_DPRX) { - drm_dp_link_train_channel_eq_delay(intel_dp->dpcd); + drm_dp_link_train_channel_eq_delay(&intel_dp->aux, intel_dp->dpcd); } else { const u8 *phy_caps = intel_dp_lttpr_phy_caps(intel_dp, dp_phy); - drm_dp_lttpr_link_train_channel_eq_delay(phy_caps); + drm_dp_lttpr_link_train_channel_eq_delay(&intel_dp->aux, phy_caps); } } diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index 264a9eae87d3..2cebd17a7289 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1184,7 +1184,7 @@ static int dp_ctrl_link_lane_down_shift(struct dp_ctrl_private *ctrl) static void dp_ctrl_clear_training_pattern(struct dp_ctrl_private *ctrl) { dp_ctrl_train_pattern_set(ctrl, DP_TRAINING_PATTERN_DISABLE); - drm_dp_link_train_channel_eq_delay(ctrl->panel->dpcd); + drm_dp_link_train_channel_eq_delay(ctrl->aux, ctrl->panel->dpcd); } static int dp_ctrl_link_train_2(struct dp_ctrl_private *ctrl, @@ -1215,7 +1215,7 @@ static int dp_ctrl_link_train_2(struct dp_ctrl_private *ctrl, dp_ctrl_train_pattern_set(ctrl, pattern | DP_RECOVERED_CLOCK_OUT_EN); for (tries = 0; tries <= maximum_retries; tries++) { - drm_dp_link_train_channel_eq_delay(ctrl->panel->dpcd); + drm_dp_link_train_channel_eq_delay(ctrl->aux, ctrl->panel->dpcd); ret = dp_ctrl_read_link_status(ctrl, link_status); if (ret) diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c index 6501598448b4..4fb397ee7c84 100644 --- a/drivers/gpu/drm/msm/edp/edp_ctrl.c +++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c @@ -665,7 +665,7 @@ static int edp_start_link_train_2(struct edp_ctrl *ctrl) return ret; while (1) { - drm_dp_link_train_channel_eq_delay(ctrl->dpcd); + drm_dp_link_train_channel_eq_delay(ctrl->drm_aux, ctrl->dpcd); rlen = drm_dp_dpcd_read_link_status(ctrl->drm_aux, link_status); if (rlen < DP_LINK_STATUS_SIZE) { @@ -743,7 +743,7 @@ static int edp_clear_training_pattern(struct edp_ctrl *ctrl) ret = edp_train_pattern_set_write(ctrl, 0); - drm_dp_link_train_channel_eq_delay(ctrl->dpcd); + drm_dp_link_train_channel_eq_delay(ctrl->drm_aux, ctrl->dpcd); return ret; } diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 299b9d8da376..4c1e551d9714 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -743,7 +743,7 @@ static int radeon_dp_link_train_ce(struct radeon_dp_link_train_info *dp_info) dp_info->tries = 0; channel_eq = false; while (1) { - drm_dp_link_train_channel_eq_delay(dp_info->dpcd); + drm_dp_link_train_channel_eq_delay(dp_info->aux, dp_info->dpcd); if (drm_dp_dpcd_read_link_status(dp_info->aux, dp_info->link_status) <= 0) { diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index e75f67cbae69..82430ca9b913 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -778,7 +778,7 @@ static int zynqmp_dp_link_train_ce(struct zynqmp_dp *dp) if (ret) return ret; - drm_dp_link_train_channel_eq_delay(dp->dpcd); + drm_dp_link_train_channel_eq_delay(&dp->aux, dp->dpcd); ret = drm_dp_dpcd_read_link_status(&dp->aux, link_status); if (ret < 0) return ret; diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 675ad0029699..e932b2c40095 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1486,8 +1486,10 @@ u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZ void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]); void drm_dp_lttpr_link_train_clock_recovery_delay(void); -void drm_dp_link_train_channel_eq_delay(const u8 dpcd[DP_RECEIVER_CAP_SIZE]); -void drm_dp_lttpr_link_train_channel_eq_delay(const u8 caps[DP_LTTPR_PHY_CAP_SIZE]); +void drm_dp_link_train_channel_eq_delay(const struct drm_dp_aux *aux, + const u8 dpcd[DP_RECEIVER_CAP_SIZE]); +void drm_dp_lttpr_link_train_channel_eq_delay(const struct drm_dp_aux *aux, + const u8 caps[DP_LTTPR_PHY_CAP_SIZE]); u8 drm_dp_link_rate_to_bw_code(int link_rate); int drm_dp_bw_code_to_link_rate(u8 link_bw); -- cgit v1.2.3-71-gd317 From 92ea222015f17203b43dd59b9541dcd26811bf4c Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:00 -0400 Subject: drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_detect() Since we're about to be using drm_dbg_*() throughout the DP helpers, we'll need to be able to access the DRM device in the dual mode DP helpers as well. Note however that since drm_dp_dual_mode_detect() can be called with DDC adapters that aren't part of a drm_dp_aux struct, we need to pass down the drm_device to these functions instead of using drm_dp_aux. Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-9-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 4 +++- drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +- drivers/gpu/drm/i915/display/intel_lspcon.c | 5 +++-- include/drm/drm_dp_dual_mode_helper.h | 4 +++- 4 files changed, 10 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index 1c9ea9f7fdaf..9ee75c568c37 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -165,6 +165,7 @@ static bool is_lspcon_adaptor(const char hdmi_id[DP_DUAL_MODE_HDMI_ID_LEN], /** * drm_dp_dual_mode_detect - Identify the DP dual mode adaptor + * @dev: &drm_device to use * @adapter: I2C adapter for the DDC bus * * Attempt to identify the type of the DP dual mode adaptor used. @@ -178,7 +179,8 @@ static bool is_lspcon_adaptor(const char hdmi_id[DP_DUAL_MODE_HDMI_ID_LEN], * Returns: * The type of the DP dual mode adaptor used */ -enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(struct i2c_adapter *adapter) +enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(const struct drm_device *dev, + struct i2c_adapter *adapter) { char hdmi_id[DP_DUAL_MODE_HDMI_ID_LEN] = {}; uint8_t adaptor_id = 0x00; diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index d69f0a6dc26d..de092f6584c1 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2223,7 +2223,7 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid) enum port port = hdmi_to_dig_port(hdmi)->base.port; struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus); - enum drm_dp_dual_mode_type type = drm_dp_dual_mode_detect(adapter); + enum drm_dp_dual_mode_type type = drm_dp_dual_mode_detect(&dev_priv->drm, adapter); /* * Type 1 DVI adaptors are not required to implement any diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index e4ff533e3a69..ca25044e7d1b 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -221,7 +221,8 @@ static bool lspcon_probe(struct intel_lspcon *lspcon) { int retry; enum drm_dp_dual_mode_type adaptor_type; - struct i2c_adapter *adapter = &lspcon_to_intel_dp(lspcon)->aux.ddc; + struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon); + struct i2c_adapter *adapter = &intel_dp->aux.ddc; enum drm_lspcon_mode expected_mode; expected_mode = lspcon_wake_native_aux_ch(lspcon) ? @@ -232,7 +233,7 @@ static bool lspcon_probe(struct intel_lspcon *lspcon) if (retry) usleep_range(500, 1000); - adaptor_type = drm_dp_dual_mode_detect(adapter); + adaptor_type = drm_dp_dual_mode_detect(intel_dp->aux.drm_dev, adapter); if (adaptor_type == DRM_DP_DUAL_MODE_LSPCON) break; } diff --git a/include/drm/drm_dp_dual_mode_helper.h b/include/drm/drm_dp_dual_mode_helper.h index 4c42db81fcb4..23ce849152f3 100644 --- a/include/drm/drm_dp_dual_mode_helper.h +++ b/include/drm/drm_dp_dual_mode_helper.h @@ -62,6 +62,7 @@ #define DP_DUAL_MODE_LSPCON_CURRENT_MODE 0x41 #define DP_DUAL_MODE_LSPCON_MODE_PCON 0x1 +struct drm_device; struct i2c_adapter; ssize_t drm_dp_dual_mode_read(struct i2c_adapter *adapter, @@ -103,7 +104,8 @@ enum drm_dp_dual_mode_type { DRM_DP_DUAL_MODE_LSPCON, }; -enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(struct i2c_adapter *adapter); +enum drm_dp_dual_mode_type +drm_dp_dual_mode_detect(const struct drm_device *dev, struct i2c_adapter *adapter); int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter); int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, -- cgit v1.2.3-71-gd317 From c235509ad740e215319c0dc34e8020dd730c046c Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:01 -0400 Subject: drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_set_tmds_output() Another function that we'll need to pass a drm_device (and not drm_dp_aux) down to so that we can move over to using drm_dbg_*(). Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-10-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 3 ++- drivers/gpu/drm/i915/display/intel_hdmi.c | 3 +-- include/drm/drm_dp_dual_mode_helper.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index 9ee75c568c37..a63d7de85309 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -336,6 +336,7 @@ EXPORT_SYMBOL(drm_dp_dual_mode_get_tmds_output); /** * drm_dp_dual_mode_set_tmds_output - Enable/disable TMDS output buffers in the DP dual mode adaptor + * @dev: &drm_device to use * @type: DP dual mode adaptor type * @adapter: I2C adapter for the DDC bus * @enable: enable (as opposed to disable) the TMDS output buffers @@ -349,7 +350,7 @@ EXPORT_SYMBOL(drm_dp_dual_mode_get_tmds_output); * Returns: * 0 on success, negative error code on failure */ -int drm_dp_dual_mode_set_tmds_output(enum drm_dp_dual_mode_type type, +int drm_dp_dual_mode_set_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool enable) { uint8_t tmds_oen = enable ? 0 : DP_DUAL_MODE_TMDS_DISABLE; diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index de092f6584c1..fdc43f545cad 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1251,8 +1251,7 @@ void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable) drm_dbg_kms(&dev_priv->drm, "%s DP dual mode adaptor TMDS output\n", enable ? "Enabling" : "Disabling"); - drm_dp_dual_mode_set_tmds_output(hdmi->dp_dual_mode.type, - adapter, enable); + drm_dp_dual_mode_set_tmds_output(&dev_priv->drm, hdmi->dp_dual_mode.type, adapter, enable); } static int intel_hdmi_hdcp_read(struct intel_digital_port *dig_port, diff --git a/include/drm/drm_dp_dual_mode_helper.h b/include/drm/drm_dp_dual_mode_helper.h index 23ce849152f3..8cb0dcd98a99 100644 --- a/include/drm/drm_dp_dual_mode_helper.h +++ b/include/drm/drm_dp_dual_mode_helper.h @@ -110,7 +110,7 @@ int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter); int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool *enabled); -int drm_dp_dual_mode_set_tmds_output(enum drm_dp_dual_mode_type type, +int drm_dp_dual_mode_set_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool enable); const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type); -- cgit v1.2.3-71-gd317 From a117f3de3b3aa4eae272067e0597f9d6c3b85f43 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:02 -0400 Subject: drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_max_tmds_clock() Another function we need to pass drm_device down to in order to start using drm_dbg_*(). Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-11-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 3 ++- drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +- include/drm/drm_dp_dual_mode_helper.h | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index a63d7de85309..4a26b3e1f78f 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -252,6 +252,7 @@ EXPORT_SYMBOL(drm_dp_dual_mode_detect); /** * drm_dp_dual_mode_max_tmds_clock - Max TMDS clock for DP dual mode adaptor + * @dev: &drm_device to use * @type: DP dual mode adaptor type * @adapter: I2C adapter for the DDC bus * @@ -265,7 +266,7 @@ EXPORT_SYMBOL(drm_dp_dual_mode_detect); * Returns: * Maximum supported TMDS clock rate for the DP dual mode adaptor in kHz. */ -int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type, +int drm_dp_dual_mode_max_tmds_clock(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter) { uint8_t max_tmds_clock; diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index fdc43f545cad..9c172dd6fb5b 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2255,7 +2255,7 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector, bool has_edid) hdmi->dp_dual_mode.type = type; hdmi->dp_dual_mode.max_tmds_clock = - drm_dp_dual_mode_max_tmds_clock(type, adapter); + drm_dp_dual_mode_max_tmds_clock(&dev_priv->drm, type, adapter); drm_dbg_kms(&dev_priv->drm, "DP dual mode adaptor (%s) detected (max TMDS clock: %d kHz)\n", diff --git a/include/drm/drm_dp_dual_mode_helper.h b/include/drm/drm_dp_dual_mode_helper.h index 8cb0dcd98a99..aabf9c951380 100644 --- a/include/drm/drm_dp_dual_mode_helper.h +++ b/include/drm/drm_dp_dual_mode_helper.h @@ -106,7 +106,7 @@ enum drm_dp_dual_mode_type { enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(const struct drm_device *dev, struct i2c_adapter *adapter); -int drm_dp_dual_mode_max_tmds_clock(enum drm_dp_dual_mode_type type, +int drm_dp_dual_mode_max_tmds_clock(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter); int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool *enabled); -- cgit v1.2.3-71-gd317 From 739624d86cb9f4ff794256749de7d9510e9fef67 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:03 -0400 Subject: drm/dp_dual_mode: Pass drm_device to drm_dp_dual_mode_get_tmds_output() Another function to pass drm_device * down to so we can start using the drm_dbg_*() in the DRM DP helpers. Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-12-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 5 +++-- include/drm/drm_dp_dual_mode_helper.h | 2 +- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index 4a26b3e1f78f..c9c2952bcad2 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -296,6 +296,7 @@ EXPORT_SYMBOL(drm_dp_dual_mode_max_tmds_clock); /** * drm_dp_dual_mode_get_tmds_output - Get the state of the TMDS output buffers in the DP dual mode adaptor + * @dev: &drm_device to use * @type: DP dual mode adaptor type * @adapter: I2C adapter for the DDC bus * @enabled: current state of the TMDS output buffers @@ -310,8 +311,8 @@ EXPORT_SYMBOL(drm_dp_dual_mode_max_tmds_clock); * Returns: * 0 on success, negative error code on failure */ -int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, - struct i2c_adapter *adapter, +int drm_dp_dual_mode_get_tmds_output(const struct drm_device *dev, + enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool *enabled) { uint8_t tmds_oen; diff --git a/include/drm/drm_dp_dual_mode_helper.h b/include/drm/drm_dp_dual_mode_helper.h index aabf9c951380..01eec9ff5962 100644 --- a/include/drm/drm_dp_dual_mode_helper.h +++ b/include/drm/drm_dp_dual_mode_helper.h @@ -108,7 +108,7 @@ enum drm_dp_dual_mode_type drm_dp_dual_mode_detect(const struct drm_device *dev, struct i2c_adapter *adapter); int drm_dp_dual_mode_max_tmds_clock(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter); -int drm_dp_dual_mode_get_tmds_output(enum drm_dp_dual_mode_type type, +int drm_dp_dual_mode_get_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool *enabled); int drm_dp_dual_mode_set_tmds_output(const struct drm_device *dev, enum drm_dp_dual_mode_type type, struct i2c_adapter *adapter, bool enable); -- cgit v1.2.3-71-gd317 From 318fbd7dfedd672f1adc2f9896ff84474b6a24cc Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:04 -0400 Subject: drm/dp_dual_mode: Pass drm_device to drm_lspcon_(get|set)_mode() So that we can start using drm_dbg_*() throughout the DRM DP helpers. Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-13-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_dual_mode_helper.c | 8 +++++--- drivers/gpu/drm/i915/display/intel_lspcon.c | 12 +++++++----- include/drm/drm_dp_dual_mode_helper.h | 4 ++-- 3 files changed, 14 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c index c9c2952bcad2..dbf9b1fdec63 100644 --- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c +++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c @@ -430,6 +430,7 @@ EXPORT_SYMBOL(drm_dp_get_dual_mode_type_name); /** * drm_lspcon_get_mode: Get LSPCON's current mode of operation by * reading offset (0x80, 0x41) + * @dev: &drm_device to use * @adapter: I2C-over-aux adapter * @mode: current lspcon mode of operation output variable * @@ -437,7 +438,7 @@ EXPORT_SYMBOL(drm_dp_get_dual_mode_type_name); * 0 on success, sets the current_mode value to appropriate mode * -error on failure */ -int drm_lspcon_get_mode(struct i2c_adapter *adapter, +int drm_lspcon_get_mode(const struct drm_device *dev, struct i2c_adapter *adapter, enum drm_lspcon_mode *mode) { u8 data; @@ -477,13 +478,14 @@ EXPORT_SYMBOL(drm_lspcon_get_mode); /** * drm_lspcon_set_mode: Change LSPCON's mode of operation by * writing offset (0x80, 0x40) + * @dev: &drm_device to use * @adapter: I2C-over-aux adapter * @mode: required mode of operation * * Returns: * 0 on success, -error on failure/timeout */ -int drm_lspcon_set_mode(struct i2c_adapter *adapter, +int drm_lspcon_set_mode(const struct drm_device *dev, struct i2c_adapter *adapter, enum drm_lspcon_mode mode) { u8 data = 0; @@ -508,7 +510,7 @@ int drm_lspcon_set_mode(struct i2c_adapter *adapter, * so wait and retry until time out or done. */ do { - ret = drm_lspcon_get_mode(adapter, ¤t_mode); + ret = drm_lspcon_get_mode(dev, adapter, ¤t_mode); if (ret) { DRM_ERROR("can't confirm LSPCON mode change\n"); return ret; diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c index ca25044e7d1b..ec0048024746 100644 --- a/drivers/gpu/drm/i915/display/intel_lspcon.c +++ b/drivers/gpu/drm/i915/display/intel_lspcon.c @@ -139,10 +139,11 @@ void lspcon_detect_hdr_capability(struct intel_lspcon *lspcon) static enum drm_lspcon_mode lspcon_get_current_mode(struct intel_lspcon *lspcon) { + struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon); enum drm_lspcon_mode current_mode; - struct i2c_adapter *adapter = &lspcon_to_intel_dp(lspcon)->aux.ddc; + struct i2c_adapter *adapter = &intel_dp->aux.ddc; - if (drm_lspcon_get_mode(adapter, ¤t_mode)) { + if (drm_lspcon_get_mode(intel_dp->aux.drm_dev, adapter, ¤t_mode)) { DRM_DEBUG_KMS("Error reading LSPCON mode\n"); return DRM_LSPCON_MODE_INVALID; } @@ -175,11 +176,12 @@ out: static int lspcon_change_mode(struct intel_lspcon *lspcon, enum drm_lspcon_mode mode) { + struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon); int err; enum drm_lspcon_mode current_mode; - struct i2c_adapter *adapter = &lspcon_to_intel_dp(lspcon)->aux.ddc; + struct i2c_adapter *adapter = &intel_dp->aux.ddc; - err = drm_lspcon_get_mode(adapter, ¤t_mode); + err = drm_lspcon_get_mode(intel_dp->aux.drm_dev, adapter, ¤t_mode); if (err) { DRM_ERROR("Error reading LSPCON mode\n"); return err; @@ -190,7 +192,7 @@ static int lspcon_change_mode(struct intel_lspcon *lspcon, return 0; } - err = drm_lspcon_set_mode(adapter, mode); + err = drm_lspcon_set_mode(intel_dp->aux.drm_dev, adapter, mode); if (err < 0) { DRM_ERROR("LSPCON mode change failed\n"); return err; diff --git a/include/drm/drm_dp_dual_mode_helper.h b/include/drm/drm_dp_dual_mode_helper.h index 01eec9ff5962..7ee482265087 100644 --- a/include/drm/drm_dp_dual_mode_helper.h +++ b/include/drm/drm_dp_dual_mode_helper.h @@ -114,8 +114,8 @@ int drm_dp_dual_mode_set_tmds_output(const struct drm_device *dev, enum drm_dp_d struct i2c_adapter *adapter, bool enable); const char *drm_dp_get_dual_mode_type_name(enum drm_dp_dual_mode_type type); -int drm_lspcon_get_mode(struct i2c_adapter *adapter, +int drm_lspcon_get_mode(const struct drm_device *dev, struct i2c_adapter *adapter, enum drm_lspcon_mode *current_mode); -int drm_lspcon_set_mode(struct i2c_adapter *adapter, +int drm_lspcon_set_mode(const struct drm_device *dev, struct i2c_adapter *adapter, enum drm_lspcon_mode reqd_mode); #endif -- cgit v1.2.3-71-gd317 From c869c5f8ceca43d61db2176f88a0321f4ce50961 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:05 -0400 Subject: drm/dp_mst: Pass drm_dp_mst_topology_mgr to drm_dp_get_vc_payload_bw() Since this is one of the few functions in drm_dp_mst_topology.c that doesn't have any way of getting access to a drm_device, let's pass the drm_dp_mst_topology_mgr down to this function so that it can use drm_dbg_kms(). Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-14-lyude@redhat.com Reviewed-by: Dave Airlie --- drivers/gpu/drm/drm_dp_mst_topology.c | 7 +++++-- drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 ++- include/drm/drm_dp_mst_helper.h | 3 ++- 3 files changed, 9 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 276f7f054d62..9bac5bd050ab 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3638,6 +3638,7 @@ static int drm_dp_send_up_ack_reply(struct drm_dp_mst_topology_mgr *mgr, /** * drm_dp_get_vc_payload_bw - get the VC payload BW for an MST link + * @mgr: The &drm_dp_mst_topology_mgr to use * @link_rate: link rate in 10kbits/s units * @link_lane_count: lane count * @@ -3646,7 +3647,8 @@ static int drm_dp_send_up_ack_reply(struct drm_dp_mst_topology_mgr *mgr, * convert the number of PBNs required for a given stream to the number of * timeslots this stream requires in each MTP. */ -int drm_dp_get_vc_payload_bw(int link_rate, int link_lane_count) +int drm_dp_get_vc_payload_bw(const struct drm_dp_mst_topology_mgr *mgr, + int link_rate, int link_lane_count) { if (link_rate == 0 || link_lane_count == 0) DRM_DEBUG_KMS("invalid link rate/lane count: (%d / %d)\n", @@ -3711,7 +3713,8 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms goto out_unlock; } - mgr->pbn_div = drm_dp_get_vc_payload_bw(drm_dp_bw_code_to_link_rate(mgr->dpcd[1]), + mgr->pbn_div = drm_dp_get_vc_payload_bw(mgr, + drm_dp_bw_code_to_link_rate(mgr->dpcd[1]), mgr->dpcd[2] & DP_MAX_LANE_COUNT_MASK); if (mgr->pbn_div == 0) { ret = -EINVAL; diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 2daa3f67791e..860381d68d9d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -70,7 +70,8 @@ static int intel_dp_mst_compute_link_config(struct intel_encoder *encoder, slots = drm_dp_atomic_find_vcpi_slots(state, &intel_dp->mst_mgr, connector->port, crtc_state->pbn, - drm_dp_get_vc_payload_bw(crtc_state->port_clock, + drm_dp_get_vc_payload_bw(&intel_dp->mst_mgr, + crtc_state->port_clock, crtc_state->lane_count)); if (slots == -EDEADLK) return slots; diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index bd1c39907b92..20dc705642bd 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -783,7 +783,8 @@ drm_dp_mst_detect_port(struct drm_connector *connector, struct edid *drm_dp_mst_get_edid(struct drm_connector *connector, struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port); -int drm_dp_get_vc_payload_bw(int link_rate, int link_lane_count); +int drm_dp_get_vc_payload_bw(const struct drm_dp_mst_topology_mgr *mgr, + int link_rate, int link_lane_count); int drm_dp_calc_pbn_mode(int clock, int bpp, bool dsc); -- cgit v1.2.3-71-gd317 From 7911902129a8c4dbc45c3ffb57126d11e042aef4 Mon Sep 17 00:00:00 2001 From: Lyude Paul Date: Fri, 23 Apr 2021 14:43:06 -0400 Subject: drm/print: Handle potentially NULL drm_devices in drm_dbg_* While this shouldn't really be something that happens all that often, since we're going to be using the drm_dbg_* log helpers in DRM helpers it's technically possible that a driver could use an AUX adapter before it's been associated with it's respective drm_device. While drivers should take care to avoid this, there's likely going to be situations where it's difficult to workaround. And since other logging helpers in the kernel tend to be OK with NULL pointers (for instance, passing a NULL pointer to a "%s" argument for a printk-like function in the kernel doesn't break anything), we should do the same for ours. Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-15-lyude@redhat.com Reviewed-by: Dave Airlie --- include/drm/drm_print.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index a3c58c941bdc..9b66be54dd16 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -443,25 +443,25 @@ void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, #define drm_dbg_core(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_CORE, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_CORE, fmt, ##__VA_ARGS__) #define drm_dbg(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRIVER, fmt, ##__VA_ARGS__) #define drm_dbg_kms(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_KMS, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_KMS, fmt, ##__VA_ARGS__) #define drm_dbg_prime(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_PRIME, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_PRIME, fmt, ##__VA_ARGS__) #define drm_dbg_atomic(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_ATOMIC, fmt, ##__VA_ARGS__) #define drm_dbg_vbl(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_VBL, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_VBL, fmt, ##__VA_ARGS__) #define drm_dbg_state(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_STATE, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_STATE, fmt, ##__VA_ARGS__) #define drm_dbg_lease(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_LEASE, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_LEASE, fmt, ##__VA_ARGS__) #define drm_dbg_dp(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_DP, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__) #define drm_dbg_drmres(drm, fmt, ...) \ - drm_dev_dbg((drm)->dev, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) + drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DRMRES, fmt, ##__VA_ARGS__) /* -- cgit v1.2.3-71-gd317 From 19d327a31a6965644b7c401aac4cf8a2e606d70f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 29 Apr 2021 12:51:01 +0200 Subject: drm: Move struct drm_device.pdev to legacy section Struct drm_device.pdev is being moved to legacy status as only legacy DRM drivers use it. A possible follow-up patchset could remove pdev entirely. v4: * rebased Signed-off-by: Thomas Zimmermann Reviewed-by: Chris Wilson Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210429105101.25667-6-tzimmermann@suse.de --- include/drm/drm_device.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index d647223e8390..c5a195676e8f 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -279,9 +279,6 @@ struct drm_device { /** @agp: AGP data */ struct drm_agp_head *agp; - /** @pdev: PCI device structure */ - struct pci_dev *pdev; - /** @num_crtcs: Number of CRTCs on this device */ unsigned int num_crtcs; @@ -324,6 +321,9 @@ struct drm_device { /* List of devices per driver for stealth attach cleanup */ struct list_head legacy_dev_list; + /* PCI device structure */ + struct pci_dev *pdev; + #ifdef __alpha__ /** @hose: PCI hose, only used on ALPHA platforms. */ struct pci_controller *hose; -- cgit v1.2.3-71-gd317 From 98025a62cb00778a467dbc359d647c9515d51b4e Mon Sep 17 00:00:00 2001 From: Nikola Cornij Date: Thu, 29 Apr 2021 18:11:51 -0400 Subject: drm/dp_mst: Use Extended Base Receiver Capability DPCD space [why] DP 1.4a spec mandates that if DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT is set, Extended Base Receiver Capability DPCD space must be used. Without doing that, the three DPCD values that differ will be wrong, leading to incorrect or limited functionality. MST link rate, for example, could have a lower value. Also, Synaptics quirk wouldn't work out well when Extended DPCD was not read, resulting in no DSC for such hubs. [how] Modify MST topology manager to use the values from Extended DPCD where applicable. To prevent regression on the sources that have a lower maximum link rate capability than MAX_LINK_RATE from Extended DPCD, have the drivers supply maximum lane count and rate at initialization time. This also reverts commit 2dcab875e763 ("Revert drm/dp_mst: Retrieve extended DPCD caps for topology manager"), brining the change back to the original commit ad44c03208e4 ("drm/dp_mst: Retrieve extended DPCD caps for topology manager"). Signed-off-by: Nikola Cornij Reviewed-by: Lyude Paul Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210429221151.22020-2-nikola.cornij@amd.com --- .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 5 ++++ drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 18 ++++++++++++ drivers/gpu/drm/amd/display/dc/dc_link.h | 2 ++ drivers/gpu/drm/drm_dp_mst_topology.c | 33 ++++++++++++++-------- drivers/gpu/drm/i915/display/intel_dp_mst.c | 6 +++- drivers/gpu/drm/nouveau/dispnv50/disp.c | 3 +- drivers/gpu/drm/radeon/radeon_dp_mst.c | 7 +++++ include/drm/drm_dp_mst_helper.h | 12 +++++++- 8 files changed, 71 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 997567f6f0ba..ef8d53e24c47 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -429,6 +429,8 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, struct amdgpu_dm_connector *aconnector, int link_index) { + struct dc_link_settings max_link_enc_cap = {0}; + aconnector->dm_dp_aux.aux.name = kasprintf(GFP_KERNEL, "AMDGPU DM aux hw bus %d", link_index); @@ -443,6 +445,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_eDP) return; + dc_link_dp_get_max_link_enc_cap(aconnector->dc_link, &max_link_enc_cap); aconnector->mst_mgr.cbs = &dm_mst_cbs; drm_dp_mst_topology_mgr_init( &aconnector->mst_mgr, @@ -450,6 +453,8 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, &aconnector->dm_dp_aux.aux, 16, 4, + (u8)max_link_enc_cap.lane_count, + (u8)max_link_enc_cap.link_rate, aconnector->connector_id); drm_connector_attach_dp_subconnector_property(&aconnector->base); diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 7d2e433c2275..6fe66b7ee53e 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -1894,6 +1894,24 @@ bool dc_link_dp_sync_lt_end(struct dc_link *link, bool link_down) return true; } +bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link, struct dc_link_settings *max_link_enc_cap) +{ + if (!max_link_enc_cap) { + DC_LOG_ERROR("%s: Could not return max link encoder caps", __func__); + return false; + } + + if (link->link_enc->funcs->get_max_link_cap) { + link->link_enc->funcs->get_max_link_cap(link->link_enc, max_link_enc_cap); + return true; + } + + DC_LOG_ERROR("%s: Max link encoder caps unknown", __func__); + max_link_enc_cap->lane_count = 1; + max_link_enc_cap->link_rate = 6; + return false; +} + static struct dc_link_settings get_max_link_cap(struct dc_link *link) { struct dc_link_settings max_link_cap = {0}; diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index b0013e674864..cb6d0543d839 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -346,6 +346,8 @@ bool dc_link_dp_set_test_pattern( const unsigned char *p_custom_pattern, unsigned int cust_pattern_size); +bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link, struct dc_link_settings *max_link_enc_cap); + void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); bool dc_link_is_dp_sink_present(struct dc_link *link); diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 5539a91b4031..54604633e65c 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -3708,19 +3708,24 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms /* set the device into MST mode */ if (mst_state) { struct drm_dp_payload reset_pay; + int lane_count; + int link_rate; WARN_ON(mgr->mst_primary); /* get dpcd info */ - ret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd, DP_RECEIVER_CAP_SIZE); - if (ret != DP_RECEIVER_CAP_SIZE) { - drm_dbg_kms(mgr->dev, "failed to read DPCD\n"); + ret = drm_dp_read_dpcd_caps(mgr->aux, mgr->dpcd); + if (ret < 0) { + drm_dbg_kms(mgr->dev, "%s: failed to read DPCD, ret %d\n", + mgr->aux->name, ret); goto out_unlock; } + lane_count = min_t(int, mgr->dpcd[2] & DP_MAX_LANE_COUNT_MASK, mgr->max_lane_count); + link_rate = min_t(int, mgr->dpcd[1], mgr->max_link_rate); mgr->pbn_div = drm_dp_get_vc_payload_bw(mgr, - drm_dp_bw_code_to_link_rate(mgr->dpcd[1]), - mgr->dpcd[2] & DP_MAX_LANE_COUNT_MASK); + drm_dp_bw_code_to_link_rate(link_rate), + lane_count); if (mgr->pbn_div == 0) { ret = -EINVAL; goto out_unlock; @@ -5448,14 +5453,17 @@ EXPORT_SYMBOL(drm_atomic_get_mst_topology_state); * @aux: DP helper aux channel to talk to this device * @max_dpcd_transaction_bytes: hw specific DPCD transaction limit * @max_payloads: maximum number of payloads this GPU can source + * @max_lane_count: maximum number of lanes this GPU supports + * @max_link_rate: maximum link rate this GPU supports, units as in DPCD * @conn_base_id: the connector object ID the MST device is connected to. * * Return 0 for success, or negative error code on failure */ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, struct drm_device *dev, struct drm_dp_aux *aux, - int max_dpcd_transaction_bytes, - int max_payloads, int conn_base_id) + int max_dpcd_transaction_bytes, int max_payloads, + u8 max_lane_count, u8 max_link_rate, + int conn_base_id) { struct drm_dp_mst_topology_state *mst_state; @@ -5490,6 +5498,8 @@ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, mgr->aux = aux; mgr->max_dpcd_transaction_bytes = max_dpcd_transaction_bytes; mgr->max_payloads = max_payloads; + mgr->max_lane_count = max_lane_count; + mgr->max_link_rate = max_link_rate; mgr->conn_base_id = conn_base_id; if (max_payloads + 1 > sizeof(mgr->payload_mask) * 8 || max_payloads + 1 > sizeof(mgr->vcpi_mask) * 8) @@ -5896,14 +5906,13 @@ struct drm_dp_aux *drm_dp_mst_dsc_aux_for_port(struct drm_dp_mst_port *port) if (drm_dp_has_quirk(&desc, DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD) && port->mgr->dpcd[DP_DPCD_REV] >= DP_DPCD_REV_14 && port->parent == port->mgr->mst_primary) { - u8 downstreamport; + u8 dpcd_ext[DP_RECEIVER_CAP_SIZE]; - if (drm_dp_dpcd_read(&port->aux, DP_DOWNSTREAMPORT_PRESENT, - &downstreamport, 1) < 0) + if (drm_dp_read_dpcd_caps(port->mgr->aux, dpcd_ext) < 0) return NULL; - if ((downstreamport & DP_DWN_STRM_PORT_PRESENT) && - ((downstreamport & DP_DWN_STRM_PORT_TYPE_MASK) + if ((dpcd_ext[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_PRESENT) && + ((dpcd_ext[DP_DOWNSTREAMPORT_PRESENT] & DP_DWN_STRM_PORT_TYPE_MASK) != DP_DWN_STRM_PORT_TYPE_ANALOG)) return port->mgr->aux; } diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 860381d68d9d..bf7f8487945c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -942,6 +942,7 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id) struct intel_dp *intel_dp = &dig_port->dp; enum port port = dig_port->base.port; int ret; + int bios_max_link_rate; if (!HAS_DP_MST(i915) || intel_dp_is_edp(intel_dp)) return 0; @@ -956,8 +957,11 @@ intel_dp_mst_encoder_init(struct intel_digital_port *dig_port, int conn_base_id) /* create encoders */ intel_dp_create_fake_mst_encoders(dig_port); + bios_max_link_rate = intel_bios_dp_max_link_rate(&dig_port->base); ret = drm_dp_mst_topology_mgr_init(&intel_dp->mst_mgr, &i915->drm, - &intel_dp->aux, 16, 3, conn_base_id); + &intel_dp->aux, 16, 3, + (u8)dig_port->max_lanes, + (u8)(bios_max_link_rate / 27000), conn_base_id); if (ret) return ret; diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 1c9c0cdf85db..c46d0374b6e6 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1617,7 +1617,8 @@ nv50_mstm_new(struct nouveau_encoder *outp, struct drm_dp_aux *aux, int aux_max, mstm->mgr.cbs = &nv50_mstm; ret = drm_dp_mst_topology_mgr_init(&mstm->mgr, dev, aux, aux_max, - max_payloads, conn_base_id); + (u8)max_payloads, outp->dcb->dpconf.link_nr, + (u8)outp->dcb->dpconf.link_bw, conn_base_id); if (ret) return ret; diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c index 59cf1d288465..13072c2a6502 100644 --- a/drivers/gpu/drm/radeon/radeon_dp_mst.c +++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c @@ -629,13 +629,20 @@ int radeon_dp_mst_init(struct radeon_connector *radeon_connector) { struct drm_device *dev = radeon_connector->base.dev; + int max_link_rate; if (!radeon_connector->ddc_bus->has_aux) return 0; + if (radeon_connector_is_dp12_capable(&radeon_connector->base)) + max_link_rate = 0x14; + else + max_link_rate = 0x0a; + radeon_connector->mst_mgr.cbs = &mst_cbs; return drm_dp_mst_topology_mgr_init(&radeon_connector->mst_mgr, dev, &radeon_connector->ddc_bus->aux, 16, 6, + 4, (u8)max_link_rate, radeon_connector->base.base.id); } diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index 20dc705642bd..c87a829b6498 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -593,6 +593,14 @@ struct drm_dp_mst_topology_mgr { * @max_payloads: maximum number of payloads the GPU can generate. */ int max_payloads; + /** + * @max_lane_count: maximum number of lanes the GPU can drive. + */ + u8 max_lane_count; + /** + * @max_link_rate: maximum link rate per lane GPU can output. + */ + u8 max_link_rate; /** * @conn_base_id: DRM connector ID this mgr is connected to. Only used * to build the MST connector path value. @@ -765,7 +773,9 @@ struct drm_dp_mst_topology_mgr { int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, struct drm_device *dev, struct drm_dp_aux *aux, int max_dpcd_transaction_bytes, - int max_payloads, int conn_base_id); + int max_payloads, + u8 max_lane_count, u8 max_link_rate, + int conn_base_id); void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr); -- cgit v1.2.3-71-gd317 From 5ab7af7151ba14b4f7bec8a9d6ce2c4c0afd457f Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 30 Apr 2021 12:58:32 +0200 Subject: drm/format-helper: Pass destination pitch to drm_fb_memcpy_dstclip() The memcpy's destination buffer might have a different pitch than the source. Support different pitches as function argument. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Acked-by: Maxime Ripard Tested-by: nerdopolis Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-2-tzimmermann@suse.de --- drivers/gpu/drm/drm_format_helper.c | 9 +++++---- drivers/gpu/drm/mgag200/mgag200_mode.c | 2 +- drivers/gpu/drm/tiny/cirrus.c | 2 +- include/drm/drm_format_helper.h | 2 +- 4 files changed, 8 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index c043ca364c86..8d5a683afea7 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -52,6 +52,7 @@ EXPORT_SYMBOL(drm_fb_memcpy); /** * drm_fb_memcpy_dstclip - Copy clip buffer * @dst: Destination buffer (iomem) + * @dst_pitch: Number of bytes between two consecutive scanlines within dst * @vaddr: Source buffer * @fb: DRM framebuffer * @clip: Clip rectangle area to copy @@ -59,12 +60,12 @@ EXPORT_SYMBOL(drm_fb_memcpy); * This function applies clipping on dst, i.e. the destination is a * full (iomem) framebuffer but only the clip rect content is copied over. */ -void drm_fb_memcpy_dstclip(void __iomem *dst, void *vaddr, - struct drm_framebuffer *fb, +void drm_fb_memcpy_dstclip(void __iomem *dst, unsigned int dst_pitch, + void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip) { unsigned int cpp = fb->format->cpp[0]; - unsigned int offset = clip_offset(clip, fb->pitches[0], cpp); + unsigned int offset = clip_offset(clip, dst_pitch, cpp); size_t len = (clip->x2 - clip->x1) * cpp; unsigned int y, lines = clip->y2 - clip->y1; @@ -73,7 +74,7 @@ void drm_fb_memcpy_dstclip(void __iomem *dst, void *vaddr, for (y = 0; y < lines; y++) { memcpy_toio(dst, vaddr, len); vaddr += fb->pitches[0]; - dst += fb->pitches[0]; + dst += dst_pitch; } } EXPORT_SYMBOL(drm_fb_memcpy_dstclip); diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index cece3e57fb27..9d576240faed 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -1554,7 +1554,7 @@ mgag200_handle_damage(struct mga_device *mdev, struct drm_framebuffer *fb, { void *vmap = map->vaddr; /* TODO: Use mapping abstraction properly */ - drm_fb_memcpy_dstclip(mdev->vram, vmap, fb, clip); + drm_fb_memcpy_dstclip(mdev->vram, fb->pitches[0], vmap, fb, clip); /* Always scanout image at VRAM offset 0 */ mgag200_set_startadd(mdev, (u32)0); diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c index e3afb45d9a5c..42611dacde88 100644 --- a/drivers/gpu/drm/tiny/cirrus.c +++ b/drivers/gpu/drm/tiny/cirrus.c @@ -324,7 +324,7 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, const struct dma_buf_ return -ENODEV; if (cirrus->cpp == fb->format->cpp[0]) - drm_fb_memcpy_dstclip(cirrus->vram, + drm_fb_memcpy_dstclip(cirrus->vram, fb->pitches[0], vmap, fb, rect); else if (fb->format->cpp[0] == 4 && cirrus->cpp == 2) diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 5f9e37032468..2b5036a5fbe7 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -11,7 +11,7 @@ struct drm_rect; void drm_fb_memcpy(void *dst, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip); -void drm_fb_memcpy_dstclip(void __iomem *dst, void *vaddr, +void drm_fb_memcpy_dstclip(void __iomem *dst, unsigned int dst_pitch, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip); void drm_fb_swab(void *dst, void *src, struct drm_framebuffer *fb, -- cgit v1.2.3-71-gd317 From 900d3e4a978928fb6da95637e5dd64e88bae6ce6 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 30 Apr 2021 12:58:33 +0200 Subject: drm/format-helper: Add blitter functions The blitter functions copy a framebuffer to I/O memory using one of the existing conversion functions. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Acked-by: Maxime Ripard Tested-by: nerdopolis Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-3-tzimmermann@suse.de --- drivers/gpu/drm/drm_format_helper.c | 87 +++++++++++++++++++++++++++++++++++++ include/drm/drm_format_helper.h | 8 ++++ 2 files changed, 95 insertions(+) (limited to 'include') diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c index 8d5a683afea7..0e885cd34107 100644 --- a/drivers/gpu/drm/drm_format_helper.c +++ b/drivers/gpu/drm/drm_format_helper.c @@ -344,3 +344,90 @@ void drm_fb_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb, } EXPORT_SYMBOL(drm_fb_xrgb8888_to_gray8); +/** + * drm_fb_blit_rect_dstclip - Copy parts of a framebuffer to display memory + * @dst: The display memory to copy to + * @dst_pitch: Number of bytes between two consecutive scanlines within dst + * @dst_format: FOURCC code of the display's color format + * @vmap: The framebuffer memory to copy from + * @fb: The framebuffer to copy from + * @clip: Clip rectangle area to copy + * + * This function copies parts of a framebuffer to display memory. If the + * formats of the display and the framebuffer mismatch, the blit function + * will attempt to convert between them. + * + * Use drm_fb_blit_dstclip() to copy the full framebuffer. + * + * Returns: + * 0 on success, or + * -EINVAL if the color-format conversion failed, or + * a negative error code otherwise. + */ +int drm_fb_blit_rect_dstclip(void __iomem *dst, unsigned int dst_pitch, + uint32_t dst_format, void *vmap, + struct drm_framebuffer *fb, + struct drm_rect *clip) +{ + uint32_t fb_format = fb->format->format; + + /* treat alpha channel like filler bits */ + if (fb_format == DRM_FORMAT_ARGB8888) + fb_format = DRM_FORMAT_XRGB8888; + if (dst_format == DRM_FORMAT_ARGB8888) + dst_format = DRM_FORMAT_XRGB8888; + + if (dst_format == fb_format) { + drm_fb_memcpy_dstclip(dst, dst_pitch, vmap, fb, clip); + return 0; + + } else if (dst_format == DRM_FORMAT_RGB565) { + if (fb_format == DRM_FORMAT_XRGB8888) { + drm_fb_xrgb8888_to_rgb565_dstclip(dst, dst_pitch, + vmap, fb, clip, + false); + return 0; + } + } else if (dst_format == DRM_FORMAT_RGB888) { + if (fb_format == DRM_FORMAT_XRGB8888) { + drm_fb_xrgb8888_to_rgb888_dstclip(dst, dst_pitch, + vmap, fb, clip); + return 0; + } + } + + return -EINVAL; +} +EXPORT_SYMBOL(drm_fb_blit_rect_dstclip); + +/** + * drm_fb_blit_dstclip - Copy framebuffer to display memory + * @dst: The display memory to copy to + * @dst_pitch: Number of bytes between two consecutive scanlines within dst + * @dst_format: FOURCC code of the display's color format + * @vmap: The framebuffer memory to copy from + * @fb: The framebuffer to copy from + * + * This function copies a full framebuffer to display memory. If the formats + * of the display and the framebuffer mismatch, the copy function will + * attempt to convert between them. + * + * See drm_fb_blit_rect_dstclip() for more inforamtion. + * + * Returns: + * 0 on success, or a negative error code otherwise. + */ +int drm_fb_blit_dstclip(void __iomem *dst, unsigned int dst_pitch, + uint32_t dst_format, void *vmap, + struct drm_framebuffer *fb) +{ + struct drm_rect fullscreen = { + .x1 = 0, + .x2 = fb->width, + .y1 = 0, + .y2 = fb->height, + }; + return drm_fb_blit_rect_dstclip(dst, dst_pitch, dst_format, vmap, fb, + &fullscreen); +} +EXPORT_SYMBOL(drm_fb_blit_dstclip); diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 2b5036a5fbe7..4e0258a61311 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -28,4 +28,12 @@ void drm_fb_xrgb8888_to_rgb888_dstclip(void __iomem *dst, unsigned int dst_pitch void drm_fb_xrgb8888_to_gray8(u8 *dst, void *vaddr, struct drm_framebuffer *fb, struct drm_rect *clip); +int drm_fb_blit_rect_dstclip(void __iomem *dst, unsigned int dst_pitch, + uint32_t dst_format, void *vmap, + struct drm_framebuffer *fb, + struct drm_rect *rect); +int drm_fb_blit_dstclip(void __iomem *dst, unsigned int dst_pitch, + uint32_t dst_format, void *vmap, + struct drm_framebuffer *fb); + #endif /* __LINUX_DRM_FORMAT_HELPER_H */ -- cgit v1.2.3-71-gd317 From 730e7992dc1beedf2c33001cc0d791c3cdf6c842 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 30 Apr 2021 12:58:34 +0200 Subject: drm/aperture: Add infrastructure for aperture ownership Platform devices might operate on firmware framebuffers, such as VESA or EFI. Before a native driver for the graphics hardware can take over the device, it has to remove any platform driver that operates on the firmware framebuffer. Aperture helpers provide the infrastructure for platform drivers to acquire firmware framebuffers, and for native drivers to remove them later on. It works similar to the related fbdev mechanism. During initialization, the platform driver acquires the firmware framebuffer's I/O memory and provides a callback to be removed. The native driver later uses this information to remove any platform driver for it's framebuffer I/O memory. The aperture removal code is integrated into the existing code for removing conflicting framebuffers, so native drivers use it automatically. v5: * fix build error introduced by rebasing v4 * fix typo in documentation v4: * hide detach callback in implementation (Daniel) * documentation fixes v3: * rebase onto existing aperture infrastructure * release aperture from list during detach; fix dangling apertures * don't export struct drm_aperture * document struct drm_aperture_funcs v2: * rename plaform helpers to aperture helpers * tie to device lifetime with devm_ functions * removed unsued remove() callback * rename kickout to detach * make struct drm_aperture private * rebase onto existing drm_aperture.h header file * use MIT license only for simplicity * documentation Signed-off-by: Thomas Zimmermann Acked-by: Daniel Vetter Acked-by: Maxime Ripard Tested-by: nerdopolis Link: https://patchwork.freedesktop.org/patch/msgid/20210430105840.30515-4-tzimmermann@suse.de --- drivers/gpu/drm/drm_aperture.c | 221 ++++++++++++++++++++++++++++++++++++++++- include/drm/drm_aperture.h | 4 + 2 files changed, 221 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_aperture.c b/drivers/gpu/drm/drm_aperture.c index e034dd7f9b09..33bf018c3bdf 100644 --- a/drivers/gpu/drm/drm_aperture.c +++ b/drivers/gpu/drm/drm_aperture.c @@ -1,9 +1,18 @@ // SPDX-License-Identifier: MIT +#include #include +#include +#include +#include +#include /* for firmware helpers */ +#include +#include #include #include +#include +#include /** * DOC: overview @@ -62,8 +71,200 @@ * framebuffer apertures automatically. Device drivers without knowledge of * the framebuffer's location shall call drm_aperture_remove_framebuffers(), * which removes all drivers for known framebuffer. + * + * Drivers that are susceptible to being removed by other drivers, such as + * generic EFI or VESA drivers, have to register themselves as owners of their + * given framebuffer memory. Ownership of the framebuffer memory is achived + * by calling devm_aperture_acquire_from_firmware(). On success, the driver + * is the owner of the framebuffer range. The function fails if the + * framebuffer is already by another driver. See below for an example. + * + * .. code-block:: c + * + * static int acquire_framebuffers(struct drm_device *dev, struct platform_device *pdev) + * { + * resource_size_t base, size; + * + * mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + * if (!mem) + * return -EINVAL; + * base = mem->start; + * size = resource_size(mem); + * + * return devm_acquire_aperture_from_firmware(dev, base, size); + * } + * + * static int probe(struct platform_device *pdev) + * { + * struct drm_device *dev; + * int ret; + * + * // ... Initialize the device... + * dev = devm_drm_dev_alloc(); + * ... + * + * // ... and acquire ownership of the framebuffer. + * ret = acquire_framebuffers(dev, pdev); + * if (ret) + * return ret; + * + * drm_dev_register(dev, 0); + * + * return 0; + * } + * + * The generic driver is now subject to forced removal by other drivers. This + * only works for platform drivers that support hot unplug. + * When a driver calls drm_aperture_remove_conflicting_framebuffers() et al + * for the registered framebuffer range, the aperture helpers call + * platform_device_unregister() and the generic driver unloads itself. It + * may not access the device's registers, framebuffer memory, ROM, etc + * afterwards. */ +struct drm_aperture { + struct drm_device *dev; + resource_size_t base; + resource_size_t size; + struct list_head lh; + void (*detach)(struct drm_device *dev); +}; + +static LIST_HEAD(drm_apertures); +static DEFINE_MUTEX(drm_apertures_lock); + +static bool overlap(resource_size_t base1, resource_size_t end1, + resource_size_t base2, resource_size_t end2) +{ + return (base1 < end2) && (end1 > base2); +} + +static void devm_aperture_acquire_release(void *data) +{ + struct drm_aperture *ap = data; + bool detached = !ap->dev; + + if (detached) + return; + + mutex_lock(&drm_apertures_lock); + list_del(&ap->lh); + mutex_unlock(&drm_apertures_lock); +} + +static int devm_aperture_acquire(struct drm_device *dev, + resource_size_t base, resource_size_t size, + void (*detach)(struct drm_device *)) +{ + size_t end = base + size; + struct list_head *pos; + struct drm_aperture *ap; + + mutex_lock(&drm_apertures_lock); + + list_for_each(pos, &drm_apertures) { + ap = container_of(pos, struct drm_aperture, lh); + if (overlap(base, end, ap->base, ap->base + ap->size)) + return -EBUSY; + } + + ap = devm_kzalloc(dev->dev, sizeof(*ap), GFP_KERNEL); + if (!ap) + return -ENOMEM; + + ap->dev = dev; + ap->base = base; + ap->size = size; + ap->detach = detach; + INIT_LIST_HEAD(&ap->lh); + + list_add(&ap->lh, &drm_apertures); + + mutex_unlock(&drm_apertures_lock); + + return devm_add_action_or_reset(dev->dev, devm_aperture_acquire_release, ap); +} + +static void drm_aperture_detach_firmware(struct drm_device *dev) +{ + struct platform_device *pdev = to_platform_device(dev->dev); + + /* + * Remove the device from the device hierarchy. This is the right thing + * to do for firmware-based DRM drivers, such as EFI, VESA or VGA. After + * the new driver takes over the hardware, the firmware device's state + * will be lost. + * + * For non-platform devices, a new callback would be required. + * + * If the aperture helpers ever need to handle native drivers, this call + * would only have to unplug the DRM device, so that the hardware device + * stays around after detachment. + */ + platform_device_unregister(pdev); +} + +/** + * devm_aperture_acquire_from_firmware - Acquires ownership of a firmware framebuffer + * on behalf of a DRM driver. + * @dev: the DRM device to own the framebuffer memory + * @base: the framebuffer's byte offset in physical memory + * @size: the framebuffer size in bytes + * + * Installs the given device as the new owner of the framebuffer. The function + * expects the framebuffer to be provided by a platform device that has been + * set up by firmware. Firmware can be any generic interface, such as EFI, + * VESA, VGA, etc. If the native hardware driver takes over ownership of the + * framebuffer range, the firmware state gets lost. Aperture helpers will then + * unregister the platform device automatically. Acquired apertures are + * released automatically if the underlying device goes away. + * + * The function fails if the framebuffer range, or parts of it, is currently + * owned by another driver. To evict current owners, callers should use + * drm_aperture_remove_conflicting_framebuffers() et al. before calling this + * function. The function also fails if the given device is not a platform + * device. + * + * Returns: + * 0 on success, or a negative errno value otherwise. + */ +int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base, + resource_size_t size) +{ + if (drm_WARN_ON(dev, !dev_is_platform(dev->dev))) + return -EINVAL; + + return devm_aperture_acquire(dev, base, size, drm_aperture_detach_firmware); +} +EXPORT_SYMBOL(devm_aperture_acquire_from_firmware); + +static void drm_aperture_detach_drivers(resource_size_t base, resource_size_t size) +{ + resource_size_t end = base + size; + struct list_head *pos, *n; + + mutex_lock(&drm_apertures_lock); + + list_for_each_safe(pos, n, &drm_apertures) { + struct drm_aperture *ap = + container_of(pos, struct drm_aperture, lh); + struct drm_device *dev = ap->dev; + + if (WARN_ON_ONCE(!dev)) + continue; + + if (!overlap(base, end, ap->base, ap->base + ap->size)) + continue; + + ap->dev = NULL; /* detach from device */ + list_del(&ap->lh); + + ap->detach(dev); + } + + mutex_unlock(&drm_apertures_lock); +} + /** * drm_aperture_remove_conflicting_framebuffers - remove existing framebuffers in the given range * @base: the aperture's base address in physical memory @@ -94,10 +295,13 @@ int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_ ret = remove_conflicting_framebuffers(a, name, primary); kfree(a); - return ret; -#else - return 0; + if (ret) + return ret; #endif + + drm_aperture_detach_drivers(base, size); + + return 0; } EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers); @@ -115,7 +319,16 @@ EXPORT_SYMBOL(drm_aperture_remove_conflicting_framebuffers); */ int drm_aperture_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name) { - int ret = 0; + resource_size_t base, size; + int bar, ret = 0; + + for (bar = 0; bar < PCI_STD_NUM_BARS; ++bar) { + if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) + continue; + base = pci_resource_start(pdev, bar); + size = pci_resource_len(pdev, bar); + drm_aperture_detach_drivers(base, size); + } /* * WARNING: Apparently we must kick fbdev drivers before vgacon, diff --git a/include/drm/drm_aperture.h b/include/drm/drm_aperture.h index 23cc01647ed3..6c148078780c 100644 --- a/include/drm/drm_aperture.h +++ b/include/drm/drm_aperture.h @@ -5,8 +5,12 @@ #include +struct drm_device; struct pci_dev; +int devm_aperture_acquire_from_firmware(struct drm_device *dev, resource_size_t base, + resource_size_t size); + int drm_aperture_remove_conflicting_framebuffers(resource_size_t base, resource_size_t size, bool primary, const char *name); -- cgit v1.2.3-71-gd317 From 8f86c82aba8b13e732cfdd6d0e19a7dd48197e43 Mon Sep 17 00:00:00 2001 From: Simon Ser Date: Fri, 2 Apr 2021 13:22:12 +0200 Subject: drm/connector: demote connector force-probes for non-master clients Force-probing a connector can be slow and cause flickering. As this affects the global KMS state, let's make it so only the DRM master can force-probe a connector. Non-master DRM clients won't be able to force-probe a connector anymore. Instead, KMS will perform a regular read-only connector query. Signed-off-by: Simon Ser Acked-by: Pekka Paalanen Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210402112212.5625-1-contact@emersion.fr --- drivers/gpu/drm/drm_connector.c | 11 ++++++++--- include/uapi/drm/drm_mode.h | 7 ++++--- 2 files changed, 12 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index eab8c0b82de2..9de145351546 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -20,6 +20,7 @@ * OF THIS SOFTWARE. */ +#include #include #include #include @@ -2376,9 +2377,13 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, mutex_lock(&dev->mode_config.mutex); if (out_resp->count_modes == 0) { - connector->funcs->fill_modes(connector, - dev->mode_config.max_width, - dev->mode_config.max_height); + if (drm_is_current_master(file_priv)) + connector->funcs->fill_modes(connector, + dev->mode_config.max_width, + dev->mode_config.max_height); + else + drm_dbg_kms(dev, "User-space requested a forced probe on [CONNECTOR:%d:%s] but is not the DRM master, demoting to read-only probe", + connector->base.id, connector->name); } out_resp->mm_width = connector->display_info.width_mm; diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index a5e76aa06ad5..9b6722d45f36 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -413,9 +413,10 @@ enum drm_mode_subconnector { * * **Force-probing a connector** * - * If the @count_modes field is set to zero, the kernel will perform a forced - * probe on the connector to refresh the connector status, modes and EDID. - * A forced-probe can be slow, might cause flickering and the ioctl will block. + * If the @count_modes field is set to zero and the DRM client is the current + * DRM master, the kernel will perform a forced probe on the connector to + * refresh the connector status, modes and EDID. A forced-probe can be slow, + * might cause flickering and the ioctl will block. * * User-space needs to force-probe connectors to ensure their metadata is * up-to-date at startup and after receiving a hot-plug event. User-space -- cgit v1.2.3-71-gd317 From b347e04452ff6382ace8fba9c81f5bcb63be17a6 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Sun, 2 May 2021 12:49:53 +0200 Subject: drm: Remove pdev field from struct drm_device The field pdev in struct drm_device is unused. Remove it. The value can be obtained by upcasting from the structure's dev field. Signed-off-by: Thomas Zimmermann Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210502104953.21768-8-tzimmermann@suse.de --- drivers/gpu/drm/drm_pci.c | 1 - include/drm/drm_device.h | 3 --- 2 files changed, 4 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 1a1a2d4046e9..03bd863ff0b2 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -162,7 +162,6 @@ static int drm_get_pci_dev(struct pci_dev *pdev, if (ret) goto err_free; - dev->pdev = pdev; #ifdef __alpha__ dev->hose = pdev->sysdata; #endif diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index c5a195676e8f..e5d6305e64a2 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -321,9 +321,6 @@ struct drm_device { /* List of devices per driver for stealth attach cleanup */ struct list_head legacy_dev_list; - /* PCI device structure */ - struct pci_dev *pdev; - #ifdef __alpha__ /** @hose: PCI hose, only used on ALPHA platforms. */ struct pci_controller *hose; -- cgit v1.2.3-71-gd317 From e057b52c1d90e2898fdc01c95d21bd70c81b968a Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 30 Apr 2021 11:44:47 +0200 Subject: drm/connector: Create a helper to attach the hdr_output_metadata property All the drivers that implement HDR output call pretty much the same function to initialise the hdr_output_metadata property, and while the creation of that property is in a helper, every driver uses the same code to attach it. Provide a helper for it as well Reviewed-by: Harry Wentland Reviewed-by: Jernej Skrabec Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210430094451.2145002-1-maxime@cerno.tech --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +--- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 3 +-- drivers/gpu/drm/drm_connector.c | 21 +++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_hdmi.c | 3 +-- include/drm/drm_connector.h | 1 + 5 files changed, 25 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index a0c8c41e4e57..c8d7e7dbc05e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -7498,9 +7498,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm, if (connector_type == DRM_MODE_CONNECTOR_HDMIA || connector_type == DRM_MODE_CONNECTOR_DisplayPort || connector_type == DRM_MODE_CONNECTOR_eDP) { - drm_object_attach_property( - &aconnector->base.base, - dm->ddev->mode_config.hdr_output_metadata_property, 0); + drm_connector_attach_hdr_output_metadata_property(&aconnector->base); if (!aconnector->mst_port) drm_connector_attach_vrr_capable_property(&aconnector->base); diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index ae97513ef886..dd7f6eda2ce2 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -2492,8 +2492,7 @@ static int dw_hdmi_connector_create(struct dw_hdmi *hdmi) drm_connector_attach_max_bpc_property(connector, 8, 16); if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe) - drm_object_attach_property(&connector->base, - connector->dev->mode_config.hdr_output_metadata_property, 0); + drm_connector_attach_hdr_output_metadata_property(connector); drm_connector_attach_encoder(connector, hdmi->bridge.encoder); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 9de145351546..7eb7b6db515f 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2152,6 +2152,27 @@ int drm_connector_attach_max_bpc_property(struct drm_connector *connector, } EXPORT_SYMBOL(drm_connector_attach_max_bpc_property); +/** + * drm_connector_attach_hdr_output_metadata_property - attach "HDR_OUTPUT_METADA" property + * @connector: connector to attach the property on. + * + * This is used to allow the userspace to send HDR Metadata to the + * driver. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *prop = dev->mode_config.hdr_output_metadata_property; + + drm_object_attach_property(&connector->base, prop, 0); + + return 0; +} +EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property); + /** * drm_connector_set_vrr_capable_property - sets the variable refresh rate * capable property for a connector diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 9c172dd6fb5b..3c767bcc47b1 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2459,8 +2459,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c drm_connector_attach_content_type_property(connector); if (DISPLAY_VER(dev_priv) >= 10) - drm_object_attach_property(&connector->base, - connector->dev->mode_config.hdr_output_metadata_property, 0); + drm_connector_attach_hdr_output_metadata_property(connector); if (!HAS_GMCH(dev_priv)) drm_connector_attach_max_bpc_property(connector, 8, 12); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 1922b278ffad..32172dab8427 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, u32 scaling_mode_mask); int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); +int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); int drm_mode_create_aspect_ratio_property(struct drm_device *dev); int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector); int drm_mode_create_dp_colorspace_property(struct drm_connector *connector); -- cgit v1.2.3-71-gd317 From 72921cdf8ac248c904e3883418d2f74f45028222 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 30 Apr 2021 11:44:48 +0200 Subject: drm/connector: Add helper to compare HDR metadata All the drivers that support the HDR metadata property have a similar function to compare the metadata from one connector state to the next, and force a mode change if they differ. All these functions run pretty much the same code, so let's turn it into an helper that can be shared across those drivers. Reviewed-by: Harry Wentland Reviewed-by: Jernej Skrabec Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210430094451.2145002-2-maxime@cerno.tech --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 23 ++----------------- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 17 +------------- drivers/gpu/drm/drm_connector.c | 28 +++++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_atomic.c | 13 +---------- include/drm/drm_connector.h | 2 ++ 5 files changed, 34 insertions(+), 49 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c8d7e7dbc05e..296704ce3768 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6275,25 +6275,6 @@ static int fill_hdr_info_packet(const struct drm_connector_state *state, return 0; } -static bool -is_hdr_metadata_different(const struct drm_connector_state *old_state, - const struct drm_connector_state *new_state) -{ - struct drm_property_blob *old_blob = old_state->hdr_output_metadata; - struct drm_property_blob *new_blob = new_state->hdr_output_metadata; - - if (old_blob != new_blob) { - if (old_blob && new_blob && - old_blob->length == new_blob->length) - return memcmp(old_blob->data, new_blob->data, - old_blob->length); - - return true; - } - - return false; -} - static int amdgpu_dm_connector_atomic_check(struct drm_connector *conn, struct drm_atomic_state *state) @@ -6311,7 +6292,7 @@ amdgpu_dm_connector_atomic_check(struct drm_connector *conn, if (!crtc) return 0; - if (is_hdr_metadata_different(old_con_state, new_con_state)) { + if (!drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state)) { struct dc_info_packet hdr_infopacket; ret = fill_hdr_info_packet(new_con_state, &hdr_infopacket); @@ -8803,7 +8784,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) dm_old_crtc_state->abm_level; hdr_changed = - is_hdr_metadata_different(old_con_state, new_con_state); + !drm_connector_atomic_hdr_metadata_equal(old_con_state, new_con_state); if (!scaling_changed && !abm_changed && !hdr_changed) continue; diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index dd7f6eda2ce2..e7c7c9b9c646 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -2395,21 +2395,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector) return ret; } -static bool hdr_metadata_equal(const struct drm_connector_state *old_state, - const struct drm_connector_state *new_state) -{ - struct drm_property_blob *old_blob = old_state->hdr_output_metadata; - struct drm_property_blob *new_blob = new_state->hdr_output_metadata; - - if (!old_blob || !new_blob) - return old_blob == new_blob; - - if (old_blob->length != new_blob->length) - return false; - - return !memcmp(old_blob->data, new_blob->data, old_blob->length); -} - static int dw_hdmi_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state) { @@ -2423,7 +2408,7 @@ static int dw_hdmi_connector_atomic_check(struct drm_connector *connector, if (!crtc) return 0; - if (!hdr_metadata_equal(old_state, new_state)) { + if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) { crtc_state = drm_atomic_get_crtc_state(state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 7eb7b6db515f..7b2231b1661c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2173,6 +2173,34 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn } EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property); +/** + * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed + * @old_state: old connector state to compare + * @new_state: new connector state to compare + * + * This is used by HDR-enabled drivers to test whether the HDR metadata + * have changed between two different connector state (and thus probably + * requires a full blown mode change). + * + * Returns: + * True if the metadata are equal, False otherwise + */ +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, + struct drm_connector_state *new_state) +{ + struct drm_property_blob *old_blob = old_state->hdr_output_metadata; + struct drm_property_blob *new_blob = new_state->hdr_output_metadata; + + if (!old_blob || !new_blob) + return old_blob == new_blob; + + if (old_blob->length != new_blob->length) + return false; + + return !memcmp(old_blob->data, new_blob->data, old_blob->length); +} +EXPORT_SYMBOL(drm_connector_atomic_hdr_metadata_equal); + /** * drm_connector_set_vrr_capable_property - sets the variable refresh rate * capable property for a connector diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index 4fa389fce8cb..084da7a76b1c 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -109,16 +109,6 @@ int intel_digital_connector_atomic_set_property(struct drm_connector *connector, return -EINVAL; } -static bool blob_equal(const struct drm_property_blob *a, - const struct drm_property_blob *b) -{ - if (a && b) - return a->length == b->length && - !memcmp(a->data, b->data, a->length); - - return !a == !b; -} - int intel_digital_connector_atomic_check(struct drm_connector *conn, struct drm_atomic_state *state) { @@ -149,8 +139,7 @@ int intel_digital_connector_atomic_check(struct drm_connector *conn, new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || new_conn_state->base.content_type != old_conn_state->base.content_type || new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode || - !blob_equal(new_conn_state->base.hdr_output_metadata, - old_conn_state->base.hdr_output_metadata)) + !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) crtc_state->mode_changed = true; return 0; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 32172dab8427..1f51d73ca715 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1672,6 +1672,8 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); +bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, + struct drm_connector_state *new_state); int drm_mode_create_aspect_ratio_property(struct drm_device *dev); int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector); int drm_mode_create_dp_colorspace_property(struct drm_connector *connector); -- cgit v1.2.3-71-gd317 From 21f79128e0a16e10fd0fa43485fdff01008e0296 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 30 Apr 2021 11:44:50 +0200 Subject: drm/connector: Add a helper to attach the colorspace property The intel driver uses the same logic to attach the Colorspace property in multiple places and we'll need it in vc4 too. Let's move that common code in a helper. Reviewed-by: Jernej Skrabec Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210430094451.2145002-4-maxime@cerno.tech --- drivers/gpu/drm/drm_connector.c | 20 ++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_connector.c | 6 ++---- include/drm/drm_connector.h | 1 + 3 files changed, 23 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 7b2231b1661c..da39e7ff6965 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -2173,6 +2173,26 @@ int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *conn } EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property); +/** + * drm_connector_attach_colorspace_property - attach "Colorspace" property + * @connector: connector to attach the property on. + * + * This is used to allow the userspace to signal the output colorspace + * to the driver. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_attach_colorspace_property(struct drm_connector *connector) +{ + struct drm_property *prop = connector->colorspace_property; + + drm_object_attach_property(&connector->base, prop, DRM_MODE_COLORIMETRY_DEFAULT); + + return 0; +} +EXPORT_SYMBOL(drm_connector_attach_colorspace_property); + /** * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed * @old_state: old connector state to compare diff --git a/drivers/gpu/drm/i915/display/intel_connector.c b/drivers/gpu/drm/i915/display/intel_connector.c index d5ceb7bdc14b..9bed1ccecea0 100644 --- a/drivers/gpu/drm/i915/display/intel_connector.c +++ b/drivers/gpu/drm/i915/display/intel_connector.c @@ -282,14 +282,12 @@ void intel_attach_hdmi_colorspace_property(struct drm_connector *connector) { if (!drm_mode_create_hdmi_colorspace_property(connector)) - drm_object_attach_property(&connector->base, - connector->colorspace_property, 0); + drm_connector_attach_colorspace_property(connector); } void intel_attach_dp_colorspace_property(struct drm_connector *connector) { if (!drm_mode_create_dp_colorspace_property(connector)) - drm_object_attach_property(&connector->base, - connector->colorspace_property, 0); + drm_connector_attach_colorspace_property(connector); } diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 1f51d73ca715..714d1a01c065 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1671,6 +1671,7 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, u32 scaling_mode_mask); int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); +int drm_connector_attach_colorspace_property(struct drm_connector *connector); int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, struct drm_connector_state *new_state); -- cgit v1.2.3-71-gd317 From 04dfe19a5ed683e91d8285df5be1dbde2f2f39af Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Fri, 7 May 2021 20:57:09 +0200 Subject: drm: Mark AGP implementation and ioctls as legacy MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Only UMs drivers use DRM's core AGP code and ioctls. Mark the icotls as legacy. Add the _legacy_ infix to all AGP functions. Move the declarations to the public and internal legacy header files. The agp field in struct drm_device is now located in the structure's legacy section. Adapt drivers to the changes. AGP code now depends on CONFIG_DRM_LEGACY. Signed-off-by: Thomas Zimmermann Reviewed-by: Alex Deucher Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20210507185709.22797-5-tzimmermann@suse.de --- drivers/gpu/drm/Makefile | 6 +- drivers/gpu/drm/drm_agpsupport.c | 99 ++++++++++++++++---------------- drivers/gpu/drm/drm_bufs.c | 1 - drivers/gpu/drm/drm_ioc32.c | 19 +++---- drivers/gpu/drm/drm_ioctl.c | 24 +++++--- drivers/gpu/drm/drm_legacy.h | 24 ++++++++ drivers/gpu/drm/drm_legacy_misc.c | 1 - drivers/gpu/drm/drm_memory.c | 1 - drivers/gpu/drm/drm_pci.c | 3 +- drivers/gpu/drm/drm_vm.c | 2 - drivers/gpu/drm/i810/i810_dma.c | 3 +- drivers/gpu/drm/mga/mga_dma.c | 16 +++--- drivers/gpu/drm/mga/mga_drv.h | 1 - drivers/gpu/drm/r128/r128_cce.c | 2 +- drivers/gpu/drm/via/via_dma.c | 1 - include/drm/drm_agpsupport.h | 117 -------------------------------------- include/drm/drm_device.h | 6 +- include/drm/drm_legacy.h | 82 ++++++++++++++++++++++++++ 18 files changed, 198 insertions(+), 210 deletions(-) delete mode 100644 include/drm/drm_agpsupport.h (limited to 'include') diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 89e747fedc00..a91cc7684904 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -20,15 +20,15 @@ drm-y := drm_aperture.o drm_auth.o drm_cache.o \ drm_client_modeset.o drm_atomic_uapi.o drm_hdcp.o \ drm_managed.o drm_vblank_work.o -drm-$(CONFIG_DRM_LEGACY) += drm_bufs.o drm_context.o drm_dma.o drm_legacy_misc.o drm_lock.o \ - drm_memory.o drm_scatter.o drm_vm.o +drm-$(CONFIG_DRM_LEGACY) += drm_agpsupport.o drm_bufs.o drm_context.o drm_dma.o \ + drm_legacy_misc.o drm_lock.o drm_memory.o drm_scatter.o \ + drm_vm.o drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o drm-$(CONFIG_COMPAT) += drm_ioc32.o drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o drm-$(CONFIG_DRM_GEM_SHMEM_HELPER) += drm_gem_shmem_helper.o drm-$(CONFIG_DRM_PANEL) += drm_panel.o drm-$(CONFIG_OF) += drm_of.o -drm-$(CONFIG_AGP) += drm_agpsupport.o drm-$(CONFIG_PCI) += drm_pci.o drm-$(CONFIG_DEBUG_FS) += drm_debugfs.o drm_debugfs_crc.o drm-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c index 5311d03d49cc..07c10443770e 100644 --- a/drivers/gpu/drm/drm_agpsupport.c +++ b/drivers/gpu/drm/drm_agpsupport.c @@ -37,7 +37,6 @@ #include -#include #include #include #include @@ -45,6 +44,8 @@ #include "drm_legacy.h" +#if IS_ENABLED(CONFIG_AGP) + /* * Get AGP information. * @@ -53,7 +54,7 @@ * Verifies the AGP device has been initialized and acquired and fills in the * drm_agp_info structure with the information in drm_agp_head::agp_info. */ -int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info) +int drm_legacy_agp_info(struct drm_device *dev, struct drm_agp_info *info) { struct agp_kern_info *kern; @@ -73,15 +74,15 @@ int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info) return 0; } -EXPORT_SYMBOL(drm_agp_info); +EXPORT_SYMBOL(drm_legacy_agp_info); -int drm_agp_info_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { struct drm_agp_info *info = data; int err; - err = drm_agp_info(dev, info); + err = drm_legacy_agp_info(dev, info); if (err) return err; @@ -97,7 +98,7 @@ int drm_agp_info_ioctl(struct drm_device *dev, void *data, * Verifies the AGP device hasn't been acquired before and calls * \c agp_backend_acquire. */ -int drm_agp_acquire(struct drm_device *dev) +int drm_legacy_agp_acquire(struct drm_device *dev) { struct pci_dev *pdev = to_pci_dev(dev->dev); @@ -111,7 +112,7 @@ int drm_agp_acquire(struct drm_device *dev) dev->agp->acquired = 1; return 0; } -EXPORT_SYMBOL(drm_agp_acquire); +EXPORT_SYMBOL(drm_legacy_agp_acquire); /* * Acquire the AGP device (ioctl). @@ -121,10 +122,10 @@ EXPORT_SYMBOL(drm_agp_acquire); * Verifies the AGP device hasn't been acquired before and calls * \c agp_backend_acquire. */ -int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { - return drm_agp_acquire((struct drm_device *) file_priv->minor->dev); + return drm_legacy_agp_acquire((struct drm_device *)file_priv->minor->dev); } /* @@ -135,7 +136,7 @@ int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, * * Verifies the AGP device has been acquired and calls \c agp_backend_release. */ -int drm_agp_release(struct drm_device *dev) +int drm_legacy_agp_release(struct drm_device *dev) { if (!dev->agp || !dev->agp->acquired) return -EINVAL; @@ -143,12 +144,12 @@ int drm_agp_release(struct drm_device *dev) dev->agp->acquired = 0; return 0; } -EXPORT_SYMBOL(drm_agp_release); +EXPORT_SYMBOL(drm_legacy_agp_release); -int drm_agp_release_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { - return drm_agp_release(dev); + return drm_legacy_agp_release(dev); } /* @@ -161,7 +162,7 @@ int drm_agp_release_ioctl(struct drm_device *dev, void *data, * Verifies the AGP device has been acquired but not enabled, and calls * \c agp_enable. */ -int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode) +int drm_legacy_agp_enable(struct drm_device *dev, struct drm_agp_mode mode) { if (!dev->agp || !dev->agp->acquired) return -EINVAL; @@ -171,14 +172,14 @@ int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode) dev->agp->enabled = 1; return 0; } -EXPORT_SYMBOL(drm_agp_enable); +EXPORT_SYMBOL(drm_legacy_agp_enable); -int drm_agp_enable_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { struct drm_agp_mode *mode = data; - return drm_agp_enable(dev, *mode); + return drm_legacy_agp_enable(dev, *mode); } /* @@ -189,7 +190,7 @@ int drm_agp_enable_ioctl(struct drm_device *dev, void *data, * Verifies the AGP device is present and has been acquired, allocates the * memory via agp_allocate_memory() and creates a drm_agp_mem entry for it. */ -int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request) +int drm_legacy_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request) { struct drm_agp_mem *entry; struct agp_memory *memory; @@ -221,15 +222,15 @@ int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request) return 0; } -EXPORT_SYMBOL(drm_agp_alloc); +EXPORT_SYMBOL(drm_legacy_agp_alloc); -int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, +int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_agp_buffer *request = data; - return drm_agp_alloc(dev, request); + return drm_legacy_agp_alloc(dev, request); } /* @@ -241,8 +242,8 @@ int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, * * Walks through drm_agp_head::memory until finding a matching handle. */ -static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device *dev, - unsigned long handle) +static struct drm_agp_mem *drm_legacy_agp_lookup_entry(struct drm_device *dev, + unsigned long handle) { struct drm_agp_mem *entry; @@ -261,14 +262,14 @@ static struct drm_agp_mem *drm_agp_lookup_entry(struct drm_device *dev, * Verifies the AGP device is present and acquired, looks-up the AGP memory * entry and passes it to the unbind_agp() function. */ -int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request) +int drm_legacy_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request) { struct drm_agp_mem *entry; int ret; if (!dev->agp || !dev->agp->acquired) return -EINVAL; - entry = drm_agp_lookup_entry(dev, request->handle); + entry = drm_legacy_agp_lookup_entry(dev, request->handle); if (!entry || !entry->bound) return -EINVAL; ret = agp_unbind_memory(entry->memory); @@ -276,15 +277,15 @@ int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request) entry->bound = 0; return ret; } -EXPORT_SYMBOL(drm_agp_unbind); +EXPORT_SYMBOL(drm_legacy_agp_unbind); -int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { struct drm_agp_binding *request = data; - return drm_agp_unbind(dev, request); + return drm_legacy_agp_unbind(dev, request); } /* @@ -296,7 +297,7 @@ int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, * is currently bound into the GATT. Looks-up the AGP memory entry and passes * it to bind_agp() function. */ -int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request) +int drm_legacy_agp_bind(struct drm_device *dev, struct drm_agp_binding *request) { struct drm_agp_mem *entry; int retcode; @@ -304,7 +305,7 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request) if (!dev->agp || !dev->agp->acquired) return -EINVAL; - entry = drm_agp_lookup_entry(dev, request->handle); + entry = drm_legacy_agp_lookup_entry(dev, request->handle); if (!entry || entry->bound) return -EINVAL; page = DIV_ROUND_UP(request->offset, PAGE_SIZE); @@ -316,15 +317,15 @@ int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request) dev->agp->base, entry->bound); return 0; } -EXPORT_SYMBOL(drm_agp_bind); +EXPORT_SYMBOL(drm_legacy_agp_bind); -int drm_agp_bind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { struct drm_agp_binding *request = data; - return drm_agp_bind(dev, request); + return drm_legacy_agp_bind(dev, request); } /* @@ -337,13 +338,13 @@ int drm_agp_bind_ioctl(struct drm_device *dev, void *data, * unbind_agp(). Frees it via free_agp() as well as the entry itself * and unlinks from the doubly linked list it's inserted in. */ -int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request) +int drm_legacy_agp_free(struct drm_device *dev, struct drm_agp_buffer *request) { struct drm_agp_mem *entry; if (!dev->agp || !dev->agp->acquired) return -EINVAL; - entry = drm_agp_lookup_entry(dev, request->handle); + entry = drm_legacy_agp_lookup_entry(dev, request->handle); if (!entry) return -EINVAL; if (entry->bound) @@ -355,15 +356,15 @@ int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request) kfree(entry); return 0; } -EXPORT_SYMBOL(drm_agp_free); +EXPORT_SYMBOL(drm_legacy_agp_free); -int drm_agp_free_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) { struct drm_agp_buffer *request = data; - return drm_agp_free(dev, request); + return drm_legacy_agp_free(dev, request); } /* @@ -378,7 +379,7 @@ int drm_agp_free_ioctl(struct drm_device *dev, void *data, * Note that final cleanup of the kmalloced structure is directly done in * drm_pci_agp_destroy. */ -struct drm_agp_head *drm_agp_init(struct drm_device *dev) +struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev) { struct pci_dev *pdev = to_pci_dev(dev->dev); struct drm_agp_head *head = NULL; @@ -409,7 +410,7 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev) return head; } /* Only exported for i810.ko */ -EXPORT_SYMBOL(drm_agp_init); +EXPORT_SYMBOL(drm_legacy_agp_init); /** * drm_legacy_agp_clear - Clear AGP resource list @@ -439,8 +440,10 @@ void drm_legacy_agp_clear(struct drm_device *dev) INIT_LIST_HEAD(&dev->agp->memory); if (dev->agp->acquired) - drm_agp_release(dev); + drm_legacy_agp_release(dev); dev->agp->acquired = 0; dev->agp->enabled = 0; } + +#endif diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 311dbd3e45e0..4805726b34ac 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -40,7 +40,6 @@ #include -#include #include #include #include diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 33390f02f5eb..d29907955ff7 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -31,7 +31,6 @@ #include #include -#include #include #include @@ -619,6 +618,7 @@ static int compat_drm_dma(struct file *file, unsigned int cmd, } #endif +#if IS_ENABLED(CONFIG_DRM_LEGACY) #if IS_ENABLED(CONFIG_AGP) typedef struct drm_agp_mode32 { u32 mode; /**< AGP mode */ @@ -633,7 +633,7 @@ static int compat_drm_agp_enable(struct file *file, unsigned int cmd, if (get_user(mode.mode, &argp->mode)) return -EFAULT; - return drm_ioctl_kernel(file, drm_agp_enable_ioctl, &mode, + return drm_ioctl_kernel(file, drm_legacy_agp_enable_ioctl, &mode, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } @@ -659,7 +659,7 @@ static int compat_drm_agp_info(struct file *file, unsigned int cmd, struct drm_agp_info info; int err; - err = drm_ioctl_kernel(file, drm_agp_info_ioctl, &info, DRM_AUTH); + err = drm_ioctl_kernel(file, drm_legacy_agp_info_ioctl, &info, DRM_AUTH); if (err) return err; @@ -698,7 +698,7 @@ static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, request.size = req32.size; request.type = req32.type; - err = drm_ioctl_kernel(file, drm_agp_alloc_ioctl, &request, + err = drm_ioctl_kernel(file, drm_legacy_agp_alloc_ioctl, &request, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); if (err) return err; @@ -706,7 +706,7 @@ static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, req32.handle = request.handle; req32.physical = request.physical; if (copy_to_user(argp, &req32, sizeof(req32))) { - drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, + drm_ioctl_kernel(file, drm_legacy_agp_free_ioctl, &request, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); return -EFAULT; } @@ -723,7 +723,7 @@ static int compat_drm_agp_free(struct file *file, unsigned int cmd, if (get_user(request.handle, &argp->handle)) return -EFAULT; - return drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, + return drm_ioctl_kernel(file, drm_legacy_agp_free_ioctl, &request, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } @@ -744,7 +744,7 @@ static int compat_drm_agp_bind(struct file *file, unsigned int cmd, request.handle = req32.handle; request.offset = req32.offset; - return drm_ioctl_kernel(file, drm_agp_bind_ioctl, &request, + return drm_ioctl_kernel(file, drm_legacy_agp_bind_ioctl, &request, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } @@ -757,12 +757,11 @@ static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, if (get_user(request.handle, &argp->handle)) return -EFAULT; - return drm_ioctl_kernel(file, drm_agp_unbind_ioctl, &request, + return drm_ioctl_kernel(file, drm_legacy_agp_unbind_ioctl, &request, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); } #endif /* CONFIG_AGP */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) typedef struct drm_scatter_gather32 { u32 size; /**< In bytes -- will round to page boundary */ u32 handle; /**< Used for mapping / unmapping */ @@ -935,7 +934,6 @@ static struct { DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx), DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma), -#endif #if IS_ENABLED(CONFIG_AGP) DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable), DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info), @@ -944,6 +942,7 @@ static struct { DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind), DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind), #endif +#endif #if IS_ENABLED(CONFIG_DRM_LEGACY) DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc), DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free), diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index d273d1a8603a..b0856c139693 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -33,7 +33,6 @@ #include #include -#include #include #include #include @@ -627,14 +626,21 @@ static const struct drm_ioctl_desc drm_ioctls[] = { DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_legacy_irq_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), #if IS_ENABLED(CONFIG_AGP) - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_legacy_agp_acquire_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_legacy_agp_release_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_legacy_agp_enable_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_legacy_agp_info_ioctl, DRM_AUTH), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_legacy_agp_alloc_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_legacy_agp_free_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_legacy_agp_bind_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_legacy_agp_unbind_ioctl, + DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), #endif DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_legacy_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), diff --git a/drivers/gpu/drm/drm_legacy.h b/drivers/gpu/drm/drm_legacy.h index ae2d7d2a31c7..7080d2538421 100644 --- a/drivers/gpu/drm/drm_legacy.h +++ b/drivers/gpu/drm/drm_legacy.h @@ -148,6 +148,30 @@ struct drm_agp_mem { struct list_head head; }; +/* drm_agpsupport.c */ +#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP) +void drm_legacy_agp_clear(struct drm_device *dev); + +int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +#else +static inline void drm_legacy_agp_clear(struct drm_device *dev) {} +#endif + /* drm_lock.c */ #if IS_ENABLED(CONFIG_DRM_LEGACY) int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f); diff --git a/drivers/gpu/drm/drm_legacy_misc.c b/drivers/gpu/drm/drm_legacy_misc.c index 8f54e6a78b6f..83db43b7a25e 100644 --- a/drivers/gpu/drm/drm_legacy_misc.c +++ b/drivers/gpu/drm/drm_legacy_misc.c @@ -33,7 +33,6 @@ * OTHER DEALINGS IN THE SOFTWARE. */ -#include #include #include #include diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c index e4f20a2eb6e7..d2e1dccd8113 100644 --- a/drivers/gpu/drm/drm_memory.c +++ b/drivers/gpu/drm/drm_memory.c @@ -38,7 +38,6 @@ #include #include -#include #include #include diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 6e9af8b40419..38c3cb72e7e6 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -30,7 +30,6 @@ #include #include -#include #include #include @@ -135,7 +134,7 @@ static void drm_legacy_pci_agp_init(struct drm_device *dev) { if (drm_core_check_feature(dev, DRIVER_USE_AGP)) { if (pci_find_capability(to_pci_dev(dev->dev), PCI_CAP_ID_AGP)) - dev->agp = drm_agp_init(dev); + dev->agp = drm_legacy_agp_init(dev); if (dev->agp) { dev->agp->agp_mtrr = arch_phys_wc_add( dev->agp->agp_info.aper_base, diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index 9b3b989d7cad..e957d4851dc0 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -45,8 +45,6 @@ #endif #include - -#include #include #include #include diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index 8a728273d625..d78c82af367c 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -34,7 +34,6 @@ #include #include -#include #include #include #include @@ -1199,7 +1198,7 @@ int i810_driver_load(struct drm_device *dev, unsigned long flags) { struct pci_dev *pdev = to_pci_dev(dev->dev); - dev->agp = drm_agp_init(dev); + dev->agp = drm_legacy_agp_init(dev); if (dev->agp) { dev->agp->agp_mtrr = arch_phys_wc_add( dev->agp->agp_info.aper_base, diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c index 53a119a761df..403efc1f1a7c 100644 --- a/drivers/gpu/drm/mga/mga_dma.c +++ b/drivers/gpu/drm/mga/mga_dma.c @@ -469,20 +469,20 @@ static int mga_do_agp_dma_bootstrap(struct drm_device *dev, struct drm_agp_binding bind_req; /* Acquire AGP. */ - err = drm_agp_acquire(dev); + err = drm_legacy_agp_acquire(dev); if (err) { DRM_ERROR("Unable to acquire AGP: %d\n", err); return err; } - err = drm_agp_info(dev, &info); + err = drm_legacy_agp_info(dev, &info); if (err) { DRM_ERROR("Unable to get AGP info: %d\n", err); return err; } mode.mode = (info.mode & ~0x07) | dma_bs->agp_mode; - err = drm_agp_enable(dev, mode); + err = drm_legacy_agp_enable(dev, mode); if (err) { DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode); return err; @@ -502,7 +502,7 @@ static int mga_do_agp_dma_bootstrap(struct drm_device *dev, /* Allocate and bind AGP memory. */ agp_req.size = agp_size; agp_req.type = 0; - err = drm_agp_alloc(dev, &agp_req); + err = drm_legacy_agp_alloc(dev, &agp_req); if (err) { dev_priv->agp_size = 0; DRM_ERROR("Unable to allocate %uMB AGP memory\n", @@ -515,7 +515,7 @@ static int mga_do_agp_dma_bootstrap(struct drm_device *dev, bind_req.handle = agp_req.handle; bind_req.offset = 0; - err = drm_agp_bind(dev, &bind_req); + err = drm_legacy_agp_bind(dev, &bind_req); if (err) { DRM_ERROR("Unable to bind AGP memory: %d\n", err); return err; @@ -972,10 +972,10 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) struct drm_agp_buffer free_req; unbind_req.handle = dev_priv->agp_handle; - drm_agp_unbind(dev, &unbind_req); + drm_legacy_agp_unbind(dev, &unbind_req); free_req.handle = dev_priv->agp_handle; - drm_agp_free(dev, &free_req); + drm_legacy_agp_free(dev, &free_req); dev_priv->agp_textures = NULL; dev_priv->agp_size = 0; @@ -983,7 +983,7 @@ static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) } if ((dev->agp != NULL) && dev->agp->acquired) - err = drm_agp_release(dev); + err = drm_legacy_agp_release(dev); #endif } diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h index 66df51607896..84395d81ab9b 100644 --- a/drivers/gpu/drm/mga/mga_drv.h +++ b/drivers/gpu/drm/mga/mga_drv.h @@ -35,7 +35,6 @@ #include #include -#include #include #include #include diff --git a/drivers/gpu/drm/r128/r128_cce.c b/drivers/gpu/drm/r128/r128_cce.c index 138af32480d4..2a2933c16308 100644 --- a/drivers/gpu/drm/r128/r128_cce.c +++ b/drivers/gpu/drm/r128/r128_cce.c @@ -37,10 +37,10 @@ #include #include -#include #include #include #include +#include #include #include diff --git a/drivers/gpu/drm/via/via_dma.c b/drivers/gpu/drm/via/via_dma.c index cd56ffa3df58..177b0499abf1 100644 --- a/drivers/gpu/drm/via/via_dma.c +++ b/drivers/gpu/drm/via/via_dma.c @@ -38,7 +38,6 @@ #include #include -#include #include #include #include diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h deleted file mode 100644 index f3136750c490..000000000000 --- a/include/drm/drm_agpsupport.h +++ /dev/null @@ -1,117 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _DRM_AGPSUPPORT_H_ -#define _DRM_AGPSUPPORT_H_ - -#include -#include -#include -#include -#include -#include -#include - -struct drm_device; -struct drm_file; - -struct drm_agp_head { - struct agp_kern_info agp_info; - struct list_head memory; - unsigned long mode; - struct agp_bridge_data *bridge; - int enabled; - int acquired; - unsigned long base; - int agp_mtrr; - int cant_use_aperture; - unsigned long page_mask; -}; - -#if IS_ENABLED(CONFIG_AGP) - -struct drm_agp_head *drm_agp_init(struct drm_device *dev); -void drm_legacy_agp_clear(struct drm_device *dev); -int drm_agp_acquire(struct drm_device *dev); -int drm_agp_acquire_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_release(struct drm_device *dev); -int drm_agp_release_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); -int drm_agp_enable_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_info(struct drm_device *dev, struct drm_agp_info *info); -int drm_agp_info_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); -int drm_agp_alloc_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); -int drm_agp_free_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); -int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); -int drm_agp_bind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); - -#else /* CONFIG_AGP */ - -static inline struct drm_agp_head *drm_agp_init(struct drm_device *dev) -{ - return NULL; -} - -static inline void drm_legacy_agp_clear(struct drm_device *dev) -{ -} - -static inline int drm_agp_acquire(struct drm_device *dev) -{ - return -ENODEV; -} - -static inline int drm_agp_release(struct drm_device *dev) -{ - return -ENODEV; -} - -static inline int drm_agp_enable(struct drm_device *dev, - struct drm_agp_mode mode) -{ - return -ENODEV; -} - -static inline int drm_agp_info(struct drm_device *dev, - struct drm_agp_info *info) -{ - return -ENODEV; -} - -static inline int drm_agp_alloc(struct drm_device *dev, - struct drm_agp_buffer *request) -{ - return -ENODEV; -} - -static inline int drm_agp_free(struct drm_device *dev, - struct drm_agp_buffer *request) -{ - return -ENODEV; -} - -static inline int drm_agp_unbind(struct drm_device *dev, - struct drm_agp_binding *request) -{ - return -ENODEV; -} - -static inline int drm_agp_bind(struct drm_device *dev, - struct drm_agp_binding *request) -{ - return -ENODEV; -} - -#endif /* CONFIG_AGP */ - -#endif /* _DRM_AGPSUPPORT_H_ */ diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index e5d6305e64a2..f588f967bb14 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -276,9 +276,6 @@ struct drm_device { */ spinlock_t event_lock; - /** @agp: AGP data */ - struct drm_agp_head *agp; - /** @num_crtcs: Number of CRTCs on this device */ unsigned int num_crtcs; @@ -326,6 +323,9 @@ struct drm_device { struct pci_controller *hose; #endif + /* AGP data */ + struct drm_agp_head *agp; + /* Context handle management - linked list of context handles */ struct list_head ctxlist; diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h index faf64319be76..b17e79e12bc2 100644 --- a/include/drm/drm_legacy.h +++ b/include/drm/drm_legacy.h @@ -33,6 +33,8 @@ * OTHER DEALINGS IN THE SOFTWARE. */ +#include + #include #include #include @@ -225,6 +227,86 @@ static inline void drm_legacy_pci_exit(const struct drm_driver *driver, #endif +/* + * AGP Support + */ + +struct drm_agp_head { + struct agp_kern_info agp_info; + struct list_head memory; + unsigned long mode; + struct agp_bridge_data *bridge; + int enabled; + int acquired; + unsigned long base; + int agp_mtrr; + int cant_use_aperture; + unsigned long page_mask; +}; + +#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP) +struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev); +int drm_legacy_agp_acquire(struct drm_device *dev); +int drm_legacy_agp_release(struct drm_device *dev); +int drm_legacy_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); +int drm_legacy_agp_info(struct drm_device *dev, struct drm_agp_info *info); +int drm_legacy_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); +int drm_legacy_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); +int drm_legacy_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); +int drm_legacy_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); +#else +static inline struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev) +{ + return NULL; +} + +static inline int drm_legacy_agp_acquire(struct drm_device *dev) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_release(struct drm_device *dev) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_enable(struct drm_device *dev, + struct drm_agp_mode mode) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_info(struct drm_device *dev, + struct drm_agp_info *info) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_alloc(struct drm_device *dev, + struct drm_agp_buffer *request) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_free(struct drm_device *dev, + struct drm_agp_buffer *request) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_unbind(struct drm_device *dev, + struct drm_agp_binding *request) +{ + return -ENODEV; +} + +static inline int drm_legacy_agp_bind(struct drm_device *dev, + struct drm_agp_binding *request) +{ + return -ENODEV; +} +#endif + /* drm_memory.c */ void drm_legacy_ioremap(struct drm_local_map *map, struct drm_device *dev); void drm_legacy_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); -- cgit v1.2.3-71-gd317 From 28ec344bb8911bb0d4910456b22ba0dd4f662521 Mon Sep 17 00:00:00 2001 From: Saravana Kannan Date: Wed, 5 May 2021 17:44:22 -0700 Subject: usb: typec: tcpm: Don't block probing of consumers of "connector" nodes fw_devlink expects DT device nodes with "compatible" property to have struct devices created for them. Since the connector node might not be populated as a device, mark it as such so that fw_devlink knows not to wait on this fwnode being populated as a struct device. Without this patch, USB functionality can be broken on some boards. Fixes: f7514a663016 ("of: property: fw_devlink: Add support for remote-endpoint") Reported-by: John Stultz Tested-by: John Stultz Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20210506004423.345199-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 3 ++- drivers/usb/typec/tcpm/tcpm.c | 9 +++++++++ include/linux/fwnode.h | 1 + 3 files changed, 12 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/base/core.c b/drivers/base/core.c index 4a8bf8cda52b..628e33939aca 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -150,7 +150,7 @@ void fwnode_links_purge(struct fwnode_handle *fwnode) fwnode_links_purge_consumers(fwnode); } -static void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode) +void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode) { struct fwnode_handle *child; @@ -164,6 +164,7 @@ static void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode) fwnode_for_each_available_child_node(fwnode, child) fw_devlink_purge_absent_suppliers(child); } +EXPORT_SYMBOL_GPL(fw_devlink_purge_absent_suppliers); #ifdef CONFIG_SRCU static DEFINE_MUTEX(device_links_lock); diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index c4fdc00a3bc8..bffa342d4e38 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -5754,6 +5754,15 @@ static int tcpm_fw_get_caps(struct tcpm_port *port, if (!fwnode) return -EINVAL; + /* + * This fwnode has a "compatible" property, but is never populated as a + * struct device. Instead we simply parse it to read the properties. + * This it breaks fw_devlink=on. To maintain backward compatibility + * with existing DT files, we work around this by deleting any + * fwnode_links to/from this fwnode. + */ + fw_devlink_purge_absent_suppliers(fwnode); + /* USB data support is optional */ ret = fwnode_property_read_string(fwnode, "data-role", &cap_str); if (ret == 0) { diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index ed4e67a7ff1c..59828516ebaf 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -187,5 +187,6 @@ extern u32 fw_devlink_get_flags(void); extern bool fw_devlink_is_strict(void); int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup); void fwnode_links_purge(struct fwnode_handle *fwnode); +void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); #endif -- cgit v1.2.3-71-gd317 From 4618cb7903d6e37690fff85a47126a4917e06495 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Tue, 21 Jul 2020 11:52:18 +0200 Subject: gpu: ipu-v3: Add Rec.709 limited range support to DP Add YCbCr encoding and quantization range parameters to ipu_dp_setup_channel() and configure the CSC DP matrix accordingly. Signed-off-by: Philipp Zabel --- drivers/gpu/drm/imx/ipuv3-plane.c | 9 ++++++--- drivers/gpu/ipu-v3/ipu-dp.c | 25 ++++++++++++++++++++++--- include/video/imx-ipu-v3.h | 2 ++ 3 files changed, 30 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 544d8eaf7c36..9d8f1b65ac0d 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -651,11 +651,14 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, ics = ipu_drm_fourcc_to_colorspace(fb->format->format); switch (ipu_plane->dp_flow) { case IPU_DP_FLOW_SYNC_BG: - ipu_dp_setup_channel(ipu_plane->dp, ics, IPUV3_COLORSPACE_RGB); + ipu_dp_setup_channel(ipu_plane->dp, DRM_COLOR_YCBCR_BT601, + DRM_COLOR_YCBCR_LIMITED_RANGE, ics, + IPUV3_COLORSPACE_RGB); break; case IPU_DP_FLOW_SYNC_FG: - ipu_dp_setup_channel(ipu_plane->dp, ics, - IPUV3_COLORSPACE_UNKNOWN); + ipu_dp_setup_channel(ipu_plane->dp, DRM_COLOR_YCBCR_BT601, + DRM_COLOR_YCBCR_LIMITED_RANGE, ics, + IPUV3_COLORSPACE_UNKNOWN); break; } diff --git a/drivers/gpu/ipu-v3/ipu-dp.c b/drivers/gpu/ipu-v3/ipu-dp.c index 8f67e985f26a..6a558205db96 100644 --- a/drivers/gpu/ipu-v3/ipu-dp.c +++ b/drivers/gpu/ipu-v3/ipu-dp.c @@ -10,6 +10,7 @@ #include #include +#include #include