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 	uint32_t                keyselect;
71 	struct amdgpu_bo	*ib_bo;
72 };
73 
74 int amdgpu_uvd_sw_init(struct amdgpu_device *adev);
75 int amdgpu_uvd_sw_fini(struct amdgpu_device *adev);
76 int amdgpu_uvd_entity_init(struct amdgpu_device *adev);
77 int amdgpu_uvd_suspend(struct amdgpu_device *adev);
78 int amdgpu_uvd_resume(struct amdgpu_device *adev);
79 int amdgpu_uvd_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
80 			      struct dma_fence **fence);
81 int amdgpu_uvd_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
82 			       bool direct, struct dma_fence **fence);
83 void amdgpu_uvd_free_handles(struct amdgpu_device *adev,
84 			     struct drm_file *filp);
85 int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx);
86 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring);
87 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring);
88 int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout);
89 uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev);
90 
91 #endif
92