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_VCE_H__
25 #define __AMDGPU_VCE_H__
26 
27 #define AMDGPU_MAX_VCE_HANDLES	16
28 #define AMDGPU_VCE_FIRMWARE_OFFSET 256
29 
30 #define AMDGPU_VCE_HARVEST_VCE0 (1 << 0)
31 #define AMDGPU_VCE_HARVEST_VCE1 (1 << 1)
32 
33 #define AMDGPU_VCE_FW_53_45	((53 << 24) | (45 << 16))
34 
35 struct amdgpu_vce {
36 	struct amdgpu_bo	*vcpu_bo;
37 	uint64_t		gpu_addr;
38 	void			*cpu_addr;
39 	void			*saved_bo;
40 	unsigned		fw_version;
41 	unsigned		fb_version;
42 	atomic_t		handles[AMDGPU_MAX_VCE_HANDLES];
43 	struct drm_file		*filp[AMDGPU_MAX_VCE_HANDLES];
44 	uint32_t		img_size[AMDGPU_MAX_VCE_HANDLES];
45 	struct delayed_work	idle_work;
46 	struct mutex		idle_mutex;
47 	const struct firmware	*fw;	/* VCE firmware */
48 	struct amdgpu_ring	ring[AMDGPU_MAX_VCE_RINGS];
49 	struct amdgpu_irq_src	irq;
50 	unsigned		harvest_config;
51 	struct drm_sched_entity	entity;
52 	uint32_t                srbm_soft_reset;
53 	unsigned		num_rings;
54 };
55 
56 int amdgpu_vce_sw_init(struct amdgpu_device *adev, unsigned long size);
57 int amdgpu_vce_sw_fini(struct amdgpu_device *adev);
58 int amdgpu_vce_suspend(struct amdgpu_device *adev);
59 int amdgpu_vce_resume(struct amdgpu_device *adev);
60 int amdgpu_vce_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
61 			      struct dma_fence **fence);
62 int amdgpu_vce_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
63 			       bool direct, struct dma_fence **fence);
64 void amdgpu_vce_free_handles(struct amdgpu_device *adev, struct drm_file *filp);
65 int amdgpu_vce_ring_parse_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx);
66 int amdgpu_vce_ring_parse_cs_vm(struct amdgpu_cs_parser *p, uint32_t ib_idx);
67 void amdgpu_vce_ring_emit_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib,
68 			     unsigned vmid, bool ctx_switch);
69 void amdgpu_vce_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
70 				unsigned flags);
71 int amdgpu_vce_ring_test_ring(struct amdgpu_ring *ring);
72 int amdgpu_vce_ring_test_ib(struct amdgpu_ring *ring, long timeout);
73 void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring);
74 void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring);
75 unsigned amdgpu_vce_ring_get_emit_ib_size(struct amdgpu_ring *ring);
76 unsigned amdgpu_vce_ring_get_dma_frame_size(struct amdgpu_ring *ring);
77 
78 #endif
79