1/*
2 * Copyright 2020 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#ifndef __AMDGPU_HDP_H__
24#define __AMDGPU_HDP_H__
25#include "amdgpu_ras.h"
26
27struct amdgpu_hdp_ras {
28 struct amdgpu_ras_block_object ras_block;
29};
30
31struct amdgpu_hdp_funcs {
32 void (*flush_hdp)(struct amdgpu_device *adev, struct amdgpu_ring *ring);
33 void (*invalidate_hdp)(struct amdgpu_device *adev,
34 struct amdgpu_ring *ring);
35 void (*update_clock_gating)(struct amdgpu_device *adev, bool enable);
36 void (*get_clock_gating_state)(struct amdgpu_device *adev, u64 *flags);
37 void (*init_registers)(struct amdgpu_device *adev);
38};
39
40struct amdgpu_hdp {
41 struct ras_common_if *ras_if;
42 const struct amdgpu_hdp_funcs *funcs;
43 struct amdgpu_hdp_ras *ras;
44};
45
46int amdgpu_hdp_ras_sw_init(struct amdgpu_device *adev);
47#endif /* __AMDGPU_HDP_H__ */
48

source code of linux/drivers/gpu/drm/amd/amdgpu/amdgpu_hdp.h