cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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amdgpu_uvd.h (3588B)


      1/*
      2 * Copyright 2014 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 */
     23
     24#ifndef __AMDGPU_UVD_H__
     25#define __AMDGPU_UVD_H__
     26
     27#define AMDGPU_DEFAULT_UVD_HANDLES	10
     28#define AMDGPU_MAX_UVD_HANDLES		40
     29#define AMDGPU_UVD_STACK_SIZE		(200*1024)
     30#define AMDGPU_UVD_HEAP_SIZE		(256*1024)
     31#define AMDGPU_UVD_SESSION_SIZE		(50*1024)
     32#define AMDGPU_UVD_FIRMWARE_OFFSET	256
     33
     34#define AMDGPU_MAX_UVD_INSTANCES			2
     35
     36#define AMDGPU_UVD_FIRMWARE_SIZE(adev)    \
     37	(AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(((const struct common_firmware_header *)(adev)->uvd.fw->data)->ucode_size_bytes) + \
     38			       8) - AMDGPU_UVD_FIRMWARE_OFFSET)
     39
     40struct amdgpu_uvd_inst {
     41	struct amdgpu_bo	*vcpu_bo;
     42	void			*cpu_addr;
     43	uint64_t		gpu_addr;
     44	void			*saved_bo;
     45	struct amdgpu_ring	ring;
     46	struct amdgpu_ring	ring_enc[AMDGPU_MAX_UVD_ENC_RINGS];
     47	struct amdgpu_irq_src	irq;
     48	uint32_t                srbm_soft_reset;
     49};
     50
     51#define AMDGPU_UVD_HARVEST_UVD0 (1 << 0)
     52#define AMDGPU_UVD_HARVEST_UVD1 (1 << 1)
     53
     54struct amdgpu_uvd {
     55	const struct firmware	*fw;	/* UVD firmware */
     56	unsigned		fw_version;
     57	unsigned		max_handles;
     58	unsigned		num_enc_rings;
     59	uint8_t			num_uvd_inst;
     60	bool			address_64_bit;
     61	bool			use_ctx_buf;
     62	struct amdgpu_uvd_inst	inst[AMDGPU_MAX_UVD_INSTANCES];
     63	struct drm_file		*filp[AMDGPU_MAX_UVD_HANDLES];
     64	atomic_t		handles[AMDGPU_MAX_UVD_HANDLES];
     65	struct drm_sched_entity entity;
     66	struct delayed_work	idle_work;
     67	unsigned		harvest_config;
     68	/* store image width to adjust nb memory state */
     69	unsigned		decode_image_width;
     70	uint32_t                keyselect;
     71	struct amdgpu_bo	*ib_bo;
     72};
     73
     74int amdgpu_uvd_sw_init(struct amdgpu_device *adev);
     75int amdgpu_uvd_sw_fini(struct amdgpu_device *adev);
     76int amdgpu_uvd_entity_init(struct amdgpu_device *adev);
     77int amdgpu_uvd_suspend(struct amdgpu_device *adev);
     78int amdgpu_uvd_resume(struct amdgpu_device *adev);
     79int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
     80			      struct dma_fence **fence);
     81int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
     82			       bool direct, struct dma_fence **fence);
     83void amdgpu_uvd_free_handles(struct amdgpu_device *adev,
     84			     struct drm_file *filp);
     85int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser,
     86			     struct amdgpu_job *job,
     87			     struct amdgpu_ib *ib);
     88void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring);
     89void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring);
     90int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout);
     91uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev);
     92
     93#endif