1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* Copyright 2016 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <drm/drmP.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "atomfirmware.h"
#include "amdgpu_atomfirmware.h"
#include "atom.h"
#define get_index_into_master_table(master_table, table_name) (offsetof(struct master_table, table_name) / sizeof(uint16_t))
bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
{
int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
firmwareinfo);
uint16_t data_offset;
if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
NULL, NULL, &data_offset)) {
struct atom_firmware_info_v3_1 *firmware_info =
(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
data_offset);
if (le32_to_cpu(firmware_info->firmware_capability) &
ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION)
return true;
}
return false;
}
void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
{
int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
firmwareinfo);
uint16_t data_offset;
if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL,
NULL, NULL, &data_offset)) {
struct atom_firmware_info_v3_1 *firmware_info =
(struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios +
data_offset);
adev->bios_scratch_reg_offset =
le32_to_cpu(firmware_info->bios_scratch_reg_startaddr);
}
}
void amdgpu_atomfirmware_scratch_regs_save(struct amdgpu_device *adev)
{
int i;
for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
adev->bios_scratch[i] = RREG32(adev->bios_scratch_reg_offset + i);
}
void amdgpu_atomfirmware_scratch_regs_restore(struct amdgpu_device *adev)
{
int i;
for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
WREG32(adev->bios_scratch_reg_offset + i, adev->bios_scratch[i]);
}
int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
{
struct atom_context *ctx = adev->mode_info.atom_context;
int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
vram_usagebyfirmware);
uint16_t data_offset;
int usage_bytes = 0;
if (amdgpu_atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
struct vram_usagebyfirmware_v2_1 *firmware_usage =
(struct vram_usagebyfirmware_v2_1 *)(ctx->bios + data_offset);
DRM_DEBUG("atom firmware requested %08x %dkb fw %dkb drv\n",
le32_to_cpu(firmware_usage->start_address_in_kb),
le16_to_cpu(firmware_usage->used_by_firmware_in_kb),
le16_to_cpu(firmware_usage->used_by_driver_in_kb));
usage_bytes = le16_to_cpu(firmware_usage->used_by_driver_in_kb) * 1024;
}
ctx->scratch_size_bytes = 0;
if (usage_bytes == 0)
usage_bytes = 20 * 1024;
/* allocate some scratch memory */
ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
if (!ctx->scratch)
return -ENOMEM;
ctx->scratch_size_bytes = usage_bytes;
return 0;
}
|
