root/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h

INCLUDED FROM

   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 
  40 struct 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 
  54 struct 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 };
  71 
  72 int amdgpu_uvd_sw_init(struct amdgpu_device *adev);
  73 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev);
  74 int amdgpu_uvd_entity_init(struct amdgpu_device *adev);
  75 int amdgpu_uvd_suspend(struct amdgpu_device *adev);
  76 int amdgpu_uvd_resume(struct amdgpu_device *adev);
  77 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
  78                               struct dma_fence **fence);
  79 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
  80                                bool direct, struct dma_fence **fence);
  81 void amdgpu_uvd_free_handles(struct amdgpu_device *adev,
  82                              struct drm_file *filp);
  83 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx);
  84 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring);
  85 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring);
  86 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout);
  87 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev);
  88 
  89 #endif