From cfe4d53eee81878ded963e76957f4aeed85f0a82 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 21 Nov 2012 10:23:14 +0100 Subject: drm/vmwgfx: Update the driver user-space interface for guest-backed objects Not hooked up yet. This is only the definition. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Reviewed-by: Zack Rusin Conflicts: include/uapi/drm/vmwgfx_drm.h --- include/uapi/drm/vmwgfx_drm.h | 199 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) (limited to 'include') diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h index bcb0912afe7a..39ab12f6e982 100644 --- a/include/uapi/drm/vmwgfx_drm.h +++ b/include/uapi/drm/vmwgfx_drm.h @@ -55,6 +55,11 @@ #define DRM_VMW_PRESENT 18 #define DRM_VMW_PRESENT_READBACK 19 #define DRM_VMW_UPDATE_LAYOUT 20 +#define DRM_VMW_CREATE_SHADER 21 +#define DRM_VMW_UNREF_SHADER 22 +#define DRM_VMW_GB_SURFACE_CREATE 23 +#define DRM_VMW_GB_SURFACE_REF 24 + /*************************************************************************/ /** @@ -75,6 +80,8 @@ #define DRM_VMW_PARAM_FIFO_CAPS 4 #define DRM_VMW_PARAM_MAX_FB_SIZE 5 #define DRM_VMW_PARAM_FIFO_HW_VERSION 6 +#define DRM_VMW_PARAM_MAX_SURF_MEMORY 7 +#define DRM_VMW_PARAM_3D_CAPS_SIZE 8 /** * struct drm_vmw_getparam_arg @@ -787,4 +794,196 @@ struct drm_vmw_update_layout_arg { uint64_t rects; }; + +/*************************************************************************/ +/** + * DRM_VMW_CREATE_SHADER - Create shader + * + * Creates a shader and optionally binds it to a dma buffer containing + * the shader byte-code. + */ + +/** + * enum drm_vmw_shader_type - Shader types + */ +enum drm_vmw_shader_type { + drm_vmw_shader_type_vs = 0, + drm_vmw_shader_type_ps, + drm_vmw_shader_type_gs +}; + + +/** + * struct drm_vmw_shader_create_arg + * + * @shader_type: Shader type of the shader to create. + * @size: Size of the byte-code in bytes. + * where the shader byte-code starts + * @buffer_handle: Buffer handle identifying the buffer containing the + * shader byte-code + * @shader_handle: On successful completion contains a handle that + * can be used to subsequently identify the shader. + * @offset: Offset in bytes into the buffer given by @buffer_handle, + * + * Input / Output argument to the DRM_VMW_CREATE_SHADER Ioctl. + */ +struct drm_vmw_shader_create_arg { + enum drm_vmw_shader_type shader_type; + uint32_t size; + uint32_t buffer_handle; + uint32_t shader_handle; + uint64_t offset; +}; + +/*************************************************************************/ +/** + * DRM_VMW_UNREF_SHADER - Unreferences a shader + * + * Destroys a user-space reference to a shader, optionally destroying + * it. + */ + +/** + * struct drm_vmw_shader_arg + * + * @handle: Handle identifying the shader to destroy. + * + * Input argument to the DRM_VMW_UNREF_SHADER ioctl. + */ +struct drm_vmw_shader_arg { + uint32_t handle; + uint32_t pad64; +}; + +/*************************************************************************/ +/** + * DRM_VMW_GB_SURFACE_CREATE - Create a host guest-backed surface. + * + * Allocates a surface handle and queues a create surface command + * for the host on the first use of the surface. The surface ID can + * be used as the surface ID in commands referencing the surface. + */ + +/** + * enum drm_vmw_surface_flags + * + * @drm_vmw_surface_flag_shareable: Whether the surface is shareable + * @drm_vmw_surface_flag_scanout: Whether the surface is a scanout + * surface. + * @drm_vmw_surface_flag_create_buffer: Create a backup buffer if none is + * given. + */ +enum drm_vmw_surface_flags { + drm_vmw_surface_flag_shareable = (1 << 0), + drm_vmw_surface_flag_scanout = (1 << 1), + drm_vmw_surface_flag_create_buffer = (1 << 2) +}; + +/** + * struct drm_vmw_gb_surface_create_req + * + * @svga3d_flags: SVGA3d surface flags for the device. + * @format: SVGA3d format. + * @mip_level: Number of mip levels for all faces. + * @drm_surface_flags Flags as described above. + * @multisample_count Future use. Set to 1. + * @autogen_filter Future use. Set to 0. + * @buffer_handle Buffer handle of backup buffer. SVGA3D_INVALID_ID + * if none. + * @base_size Size of the base mip level for all faces. + * + * Input argument to the DRM_VMW_GB_SURFACE_CREATE Ioctl. + * Part of output argument for the DRM_VMW_GB_SURFACE_REF Ioctl. + */ +struct drm_vmw_gb_surface_create_req { + uint32_t svga3d_flags; + uint32_t format; + uint32_t mip_levels; + enum drm_vmw_surface_flags drm_surface_flags; + uint32_t multisample_count; + uint32_t autogen_filter; + uint32_t buffer_handle; + uint32_t pad64; + struct drm_vmw_size base_size; +}; + +/** + * struct drm_vmw_gb_surface_create_rep + * + * @handle: Surface handle. + * @backup_size: Size of backup buffers for this surface. + * @buffer_handle: Handle of backup buffer. SVGA3D_INVALID_ID if none. + * @buffer_size: Actual size of the buffer identified by + * @buffer_handle + * @buffer_map_handle: Offset into device address space for the buffer + * identified by @buffer_handle. + * + * Part of output argument for the DRM_VMW_GB_SURFACE_REF ioctl. + * Output argument for the DRM_VMW_GB_SURFACE_CREATE ioctl. + */ +struct drm_vmw_gb_surface_create_rep { + uint32_t handle; + uint32_t backup_size; + uint32_t buffer_handle; + uint32_t buffer_size; + uint64_t buffer_map_handle; +}; + +/** + * union drm_vmw_gb_surface_create_arg + * + * @req: Input argument as described above. + * @rep: Output argument as described above. + * + * Argument to the DRM_VMW_GB_SURFACE_CREATE ioctl. + */ +union drm_vmw_gb_surface_create_arg { + struct drm_vmw_gb_surface_create_rep rep; + struct drm_vmw_gb_surface_create_req req; +}; + +/*************************************************************************/ +/** + * DRM_VMW_GB_SURFACE_REF - Reference a host surface. + * + * Puts a reference on a host surface with a given handle, as previously + * returned by the DRM_VMW_GB_SURFACE_CREATE ioctl. + * A reference will make sure the surface isn't destroyed while we hold + * it and will allow the calling client to use the surface handle in + * the command stream. + * + * On successful return, the Ioctl returns the surface information given + * to and returned from the DRM_VMW_GB_SURFACE_CREATE ioctl. + */ + +/** + * struct drm_vmw_gb_surface_reference_arg + * + * @creq: The data used as input when the surface was created, as described + * above at "struct drm_vmw_gb_surface_create_req" + * @crep: Additional data output when the surface was created, as described + * above at "struct drm_vmw_gb_surface_create_rep" + * + * Output Argument to the DRM_VMW_GB_SURFACE_REF ioctl. + */ +struct drm_vmw_gb_surface_ref_rep { + struct drm_vmw_gb_surface_create_req creq; + struct drm_vmw_gb_surface_create_rep crep; +}; + +/** + * union drm_vmw_gb_surface_reference_arg + * + * @req: Input data as described above at "struct drm_vmw_surface_arg" + * @rep: Output data as described above at "struct drm_vmw_gb_surface_ref_rep" + * + * Argument to the DRM_VMW_GB_SURFACE_REF Ioctl. + */ +union drm_vmw_gb_surface_reference_arg { + struct drm_vmw_gb_surface_ref_rep rep; + struct drm_vmw_surface_arg req; +}; + + + #endif -- cgit v1.2.3-71-gd317 From 15c6f6562317eb18e686a89735aa8c524d88096e Mon Sep 17 00:00:00 2001 From: Zack Rusin Date: Wed, 21 Nov 2012 12:25:33 +0100 Subject: drm/vmwgfx: Make sure that the multisampling is off By default SVGA device creates nonmaskable multisampling surfaces, in which case multisampleCount of 1 means: the first quality setting of nonmaskable multisampling surface. Lets change it to make sure that the backends know that multisampling is really off. Signed-off-by: Zack Rusin Reviewed-by: Thomas Hellstrom Reviewed-by: Brian Paul --- drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 2 +- include/uapi/drm/vmwgfx_drm.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index c3b53e1bafb8..739a93dc941e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -777,7 +777,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, srf->base_size = *srf->sizes; srf->autogen_filter = SVGA3D_TEX_FILTER_NONE; - srf->multisample_count = 1; + srf->multisample_count = 0; cur_bo_offset = 0; cur_offset = srf->offsets; diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h index 39ab12f6e982..bb3b91d84914 100644 --- a/include/uapi/drm/vmwgfx_drm.h +++ b/include/uapi/drm/vmwgfx_drm.h @@ -886,7 +886,7 @@ enum drm_vmw_surface_flags { * @format: SVGA3d format. * @mip_level: Number of mip levels for all faces. * @drm_surface_flags Flags as described above. - * @multisample_count Future use. Set to 1. + * @multisample_count Future use. Set to 0. * @autogen_filter Future use. Set to 0. * @buffer_handle Buffer handle of backup buffer. SVGA3D_INVALID_ID * if none. -- cgit v1.2.3-71-gd317 From 1d7a5cbf8f74edee0b1d9ee479367b5d876bf627 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 21 Nov 2012 12:32:19 +0100 Subject: drm/vmwgfx: Implement a buffer object synccpu ioctl. This ioctl enables inter-process synchronization of buffer objects, which is needed for mesa Guest-Backed objects. Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 6 ++ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 2 + drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 142 ++++++++++++++++++++++++++++++- include/uapi/drm/vmwgfx_drm.h | 63 +++++++++++++- 4 files changed, 211 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index cfeaa478dcd7..fb56676ed3ee 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -124,6 +124,9 @@ #define DRM_IOCTL_VMW_GB_SURFACE_REF \ DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \ union drm_vmw_gb_surface_reference_arg) +#define DRM_IOCTL_VMW_SYNCCPU \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \ + struct drm_vmw_synccpu_arg) /** * The core DRM version of this macro doesn't account for @@ -201,6 +204,9 @@ static const struct drm_ioctl_desc vmw_ioctls[] = { VMW_IOCTL_DEF(VMW_GB_SURFACE_REF, vmw_gb_surface_reference_ioctl, DRM_AUTH | DRM_UNLOCKED), + VMW_IOCTL_DEF(VMW_SYNCCPU, + vmw_user_dmabuf_synccpu_ioctl, + DRM_AUTH | DRM_UNLOCKED), }; static struct pci_device_id vmw_pci_id_list[] = { diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index e0859eebe7b6..fe3c2e3e1cbe 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -533,6 +533,8 @@ extern int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int vmw_dmabuf_unref_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +extern int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); extern uint32_t vmw_dmabuf_validate_node(struct ttm_buffer_object *bo, uint32_t cur_validate_node); extern void vmw_dmabuf_validate_clear(struct ttm_buffer_object *bo); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index b40978f0ca96..12e68e58d9e4 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -441,6 +441,21 @@ static void vmw_user_dmabuf_release(struct ttm_base_object **p_base) ttm_bo_unref(&bo); } +static void vmw_user_dmabuf_ref_obj_release(struct ttm_base_object *base, + enum ttm_ref_type ref_type) +{ + struct vmw_user_dma_buffer *user_bo; + user_bo = container_of(base, struct vmw_user_dma_buffer, prime.base); + + switch (ref_type) { + case TTM_REF_SYNCCPU_WRITE: + ttm_bo_synccpu_write_release(&user_bo->dma.base); + break; + default: + BUG(); + } +} + /** * vmw_user_dmabuf_alloc - Allocate a user dma buffer * @@ -484,7 +499,8 @@ int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv, &user_bo->prime, shareable, ttm_buffer_type, - &vmw_user_dmabuf_release, NULL); + &vmw_user_dmabuf_release, + &vmw_user_dmabuf_ref_obj_release); if (unlikely(ret != 0)) { ttm_bo_unref(&tmp); goto out_no_base_object; @@ -517,6 +533,130 @@ int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo, vmw_user_bo->prime.base.shareable) ? 0 : -EPERM; } +/** + * vmw_user_dmabuf_synccpu_grab - Grab a struct vmw_user_dma_buffer for cpu + * access, idling previous GPU operations on the buffer and optionally + * blocking it for further command submissions. + * + * @user_bo: Pointer to the buffer object being grabbed for CPU access + * @tfile: Identifying the caller. + * @flags: Flags indicating how the grab should be performed. + * + * A blocking grab will be automatically released when @tfile is closed. + */ +static int vmw_user_dmabuf_synccpu_grab(struct vmw_user_dma_buffer *user_bo, + struct ttm_object_file *tfile, + uint32_t flags) +{ + struct ttm_buffer_object *bo = &user_bo->dma.base; + bool existed; + int ret; + + if (flags & drm_vmw_synccpu_allow_cs) { + struct ttm_bo_device *bdev = bo->bdev; + + spin_lock(&bdev->fence_lock); + ret = ttm_bo_wait(bo, false, true, + !!(flags & drm_vmw_synccpu_dontblock)); + spin_unlock(&bdev->fence_lock); + return ret; + } + + ret = ttm_bo_synccpu_write_grab + (bo, !!(flags & drm_vmw_synccpu_dontblock)); + if (unlikely(ret != 0)) + return ret; + + ret = ttm_ref_object_add(tfile, &user_bo->prime.base, + TTM_REF_SYNCCPU_WRITE, &existed); + if (ret != 0 || existed) + ttm_bo_synccpu_write_release(&user_bo->dma.base); + + return ret; +} + +/** + * vmw_user_dmabuf_synccpu_release - Release a previous grab for CPU access, + * and unblock command submission on the buffer if blocked. + * + * @handle: Handle identifying the buffer object. + * @tfile: Identifying the caller. + * @flags: Flags indicating the type of release. + */ +static int vmw_user_dmabuf_synccpu_release(uint32_t handle, + struct ttm_object_file *tfile, + uint32_t flags) +{ + if (!(flags & drm_vmw_synccpu_allow_cs)) + return ttm_ref_object_base_unref(tfile, handle, + TTM_REF_SYNCCPU_WRITE); + + return 0; +} + +/** + * vmw_user_dmabuf_synccpu_release - ioctl function implementing the synccpu + * functionality. + * + * @dev: Identifies the drm device. + * @data: Pointer to the ioctl argument. + * @file_priv: Identifies the caller. + * + * This function checks the ioctl arguments for validity and calls the + * relevant synccpu functions. + */ +int vmw_user_dmabuf_synccpu_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_synccpu_arg *arg = + (struct drm_vmw_synccpu_arg *) data; + struct vmw_dma_buffer *dma_buf; + struct vmw_user_dma_buffer *user_bo; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + int ret; + + if ((arg->flags & (drm_vmw_synccpu_read | drm_vmw_synccpu_write)) == 0 + || (arg->flags & ~(drm_vmw_synccpu_read | drm_vmw_synccpu_write | + drm_vmw_synccpu_dontblock | + drm_vmw_synccpu_allow_cs)) != 0) { + DRM_ERROR("Illegal synccpu flags.\n"); + return -EINVAL; + } + + switch (arg->op) { + case drm_vmw_synccpu_grab: + ret = vmw_user_dmabuf_lookup(tfile, arg->handle, &dma_buf); + if (unlikely(ret != 0)) + return ret; + + user_bo = container_of(dma_buf, struct vmw_user_dma_buffer, + dma); + ret = vmw_user_dmabuf_synccpu_grab(user_bo, tfile, arg->flags); + vmw_dmabuf_unreference(&dma_buf); + if (unlikely(ret != 0 && ret != -ERESTARTSYS && + ret != -EBUSY)) { + DRM_ERROR("Failed synccpu grab on handle 0x%08x.\n", + (unsigned int) arg->handle); + return ret; + } + break; + case drm_vmw_synccpu_release: + ret = vmw_user_dmabuf_synccpu_release(arg->handle, tfile, + arg->flags); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed synccpu release on handle 0x%08x.\n", + (unsigned int) arg->handle); + return ret; + } + break; + default: + DRM_ERROR("Invalid synccpu operation.\n"); + return -EINVAL; + } + + return 0; +} + int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h index bb3b91d84914..adb7e0d0d3b6 100644 --- a/include/uapi/drm/vmwgfx_drm.h +++ b/include/uapi/drm/vmwgfx_drm.h @@ -28,6 +28,10 @@ #ifndef __VMWGFX_DRM_H__ #define __VMWGFX_DRM_H__ +#ifndef __KERNEL__ +#include +#endif + #define DRM_VMW_MAX_SURFACE_FACES 6 #define DRM_VMW_MAX_MIP_LEVELS 24 @@ -59,7 +63,7 @@ #define DRM_VMW_UNREF_SHADER 22 #define DRM_VMW_GB_SURFACE_CREATE 23 #define DRM_VMW_GB_SURFACE_REF 24 - +#define DRM_VMW_SYNCCPU 25 /*************************************************************************/ /** @@ -985,5 +989,62 @@ union drm_vmw_gb_surface_reference_arg { }; +/*************************************************************************/ +/** + * DRM_VMW_SYNCCPU - Sync a DMA buffer / MOB for CPU access. + * + * Idles any previously submitted GPU operations on the buffer and + * by default blocks command submissions that reference the buffer. + * If the file descriptor used to grab a blocking CPU sync is closed, the + * cpu sync is released. + * The flags argument indicates how the grab / release operation should be + * performed: + */ + +/** + * enum drm_vmw_synccpu_flags - Synccpu flags: + * + * @drm_vmw_synccpu_read: Sync for read. If sync is done for read only, it's a + * hint to the kernel to allow command submissions that references the buffer + * for read-only. + * @drm_vmw_synccpu_write: Sync for write. Block all command submissions + * referencing this buffer. + * @drm_vmw_synccpu_dontblock: Dont wait for GPU idle, but rather return + * -EBUSY should the buffer be busy. + * @drm_vmw_synccpu_allow_cs: Allow command submission that touches the buffer + * while the buffer is synced for CPU. This is similar to the GEM bo idle + * behavior. + */ +enum drm_vmw_synccpu_flags { + drm_vmw_synccpu_read = (1 << 0), + drm_vmw_synccpu_write = (1 << 1), + drm_vmw_synccpu_dontblock = (1 << 2), + drm_vmw_synccpu_allow_cs = (1 << 3) +}; + +/** + * enum drm_vmw_synccpu_op - Synccpu operations: + * + * @drm_vmw_synccpu_grab: Grab the buffer for CPU operations + * @drm_vmw_synccpu_release: Release a previous grab. + */ +enum drm_vmw_synccpu_op { + drm_vmw_synccpu_grab, + drm_vmw_synccpu_release +}; + +/** + * struct drm_vmw_synccpu_arg + * + * @op: The synccpu operation as described above. + * @handle: Handle identifying the buffer object. + * @flags: Flags as described above. + */ +struct drm_vmw_synccpu_arg { + enum drm_vmw_synccpu_op op; + enum drm_vmw_synccpu_flags flags; + uint32_t handle; + uint32_t pad64; +}; #endif -- cgit v1.2.3-71-gd317 From 311474dbdc6ab0ad366fbec040dbe669edd30a35 Mon Sep 17 00:00:00 2001 From: Thomas Hellstrom Date: Wed, 21 Nov 2012 12:34:47 +0100 Subject: drm/vmwgfx: Add a parameter to get max MOB memory size Also bump minor to signal a GB-aware kernel module Signed-off-by: Thomas Hellstrom Reviewed-by: Zack Rusin --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 4 ++-- drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c | 3 +++ include/uapi/drm/vmwgfx_drm.h | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index fe3c2e3e1cbe..76751e953834 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -40,9 +40,9 @@ #include #include "vmwgfx_fence.h" -#define VMWGFX_DRIVER_DATE "20120209" +#define VMWGFX_DRIVER_DATE "20121114" #define VMWGFX_DRIVER_MAJOR 2 -#define VMWGFX_DRIVER_MINOR 4 +#define VMWGFX_DRIVER_MINOR 5 #define VMWGFX_DRIVER_PATCHLEVEL 0 #define VMWGFX_FILE_PAGE_OFFSET 0x00100000 #define VMWGFX_FIFO_STATIC_SIZE (1024*1024) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c index 641908e06eab..116c49736763 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c @@ -79,6 +79,9 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data, SVGA_FIFO_3D_CAPS + 1); param->value *= sizeof(uint32_t); break; + case DRM_VMW_PARAM_MAX_MOB_MEMORY: + param->value = dev_priv->max_mob_pages * PAGE_SIZE; + break; default: DRM_ERROR("Illegal vmwgfx get param request: %d\n", param->param); diff --git a/include/uapi/drm/vmwgfx_drm.h b/include/uapi/drm/vmwgfx_drm.h index adb7e0d0d3b6..9971c560ed9a 100644 --- a/include/uapi/drm/vmwgfx_drm.h +++ b/include/uapi/drm/vmwgfx_drm.h @@ -86,6 +86,7 @@ #define DRM_VMW_PARAM_FIFO_HW_VERSION 6 #define DRM_VMW_PARAM_MAX_SURF_MEMORY 7 #define DRM_VMW_PARAM_3D_CAPS_SIZE 8 +#define DRM_VMW_PARAM_MAX_MOB_MEMORY 9 /** * struct drm_vmw_getparam_arg -- cgit v1.2.3-71-gd317