1/*
2 * Copyright 2013 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 * Authors: Christian K├Ânig <christian.koenig@amd.com>
23 */
24
25#include <linux/firmware.h>
26#include <drm/drmP.h>
27#include "radeon.h"
28#include "radeon_asic.h"
29#include "cikd.h"
30
31/**
32 * uvd_v4_2_resume - memory controller programming
33 *
34 * @rdev: radeon_device pointer
35 *
36 * Let the UVD memory controller know it's offsets
37 */
38int uvd_v4_2_resume(struct radeon_device *rdev)
39{
40 uint64_t addr;
41 uint32_t size;
42
43 /* programm the VCPU memory controller bits 0-27 */
44
45 /* skip over the header of the new firmware format */
46 if (rdev->uvd.fw_header_present)
47 addr = (rdev->uvd.gpu_addr + 0x200) >> 3;
48 else
49 addr = rdev->uvd.gpu_addr >> 3;
50
51 size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 4) >> 3;
52 WREG32(UVD_VCPU_CACHE_OFFSET0, addr);
53 WREG32(UVD_VCPU_CACHE_SIZE0, size);
54
55 addr += size;
56 size = RADEON_UVD_HEAP_SIZE >> 3;
57 WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
58 WREG32(UVD_VCPU_CACHE_SIZE1, size);
59
60 addr += size;
61 size = (RADEON_UVD_STACK_SIZE +
62 (RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;
63 WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
64 WREG32(UVD_VCPU_CACHE_SIZE2, size);
65
66 /* bits 28-31 */
67 addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
68 WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
69
70 /* bits 32-39 */
71 addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
72 WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
73
74 if (rdev->uvd.fw_header_present)
75 WREG32(UVD_GP_SCRATCH4, rdev->uvd.max_handles);
76
77 return 0;
78}
79