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drm/amdgpu: add atomfirmware helper function to query fw cap

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Fimware capability was changed from 16 bits to 32 bits
for atomfirmware. add helper funciton to query firmware
capability and cache the value at early stage.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2021-05-13 21:46:24 +08:00 committed by Alex Deucher
parent ed9d205363
commit 5968c6a2ba
4 changed files with 44 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
View File

@ -1828,6 +1828,9 @@ int amdgpu_atombios_init(struct amdgpu_device *adev)
if (adev->is_atom_fw) {
amdgpu_atomfirmware_scratch_regs_init(adev);
amdgpu_atomfirmware_allocate_fb_scratch(adev);
/* cached firmware_flags for further usage */
adev->mode_info.firmware_flags =
amdgpu_atomfirmware_query_firmware_capability(adev);
} else {
amdgpu_atombios_scratch_regs_init(adev);
amdgpu_atombios_allocate_fb_scratch(adev);

50
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
View File

@ -29,6 +29,45 @@
#include "atombios.h"
#include "soc15_hw_ip.h"
union firmware_info {
struct atom_firmware_info_v3_1 v31;
struct atom_firmware_info_v3_2 v32;
struct atom_firmware_info_v3_3 v33;
struct atom_firmware_info_v3_4 v34;
};
/*
* Helper function to query firmware capability
*
* @adev: amdgpu_device pointer
*
* Return firmware_capability in firmwareinfo table on success or 0 if not
*/
uint32_t amdgpu_atomfirmware_query_firmware_capability(struct amdgpu_device *adev)
{
struct amdgpu_mode_info *mode_info = &adev->mode_info;
int index;
u16 data_offset, size;
union firmware_info *firmware_info;
u8 frev, crev;
u32 fw_cap = 0;
index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
firmwareinfo);
if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context,
index, &size, &frev, &crev, &data_offset)) {
/* support firmware_info 3.1 + */
if ((frev == 3 && crev >=1) || (frev > 3)) {
firmware_info = (union firmware_info *)
(mode_info->atom_context->bios + data_offset);
fw_cap = le32_to_cpu(firmware_info->v31.firmware_capability);
}
}
return fw_cap;
}
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,
@ -400,13 +439,6 @@ bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev)
return ecc_default_enabled;
}
union firmware_info {
struct atom_firmware_info_v3_1 v31;
struct atom_firmware_info_v3_2 v32;
struct atom_firmware_info_v3_3 v33;
struct atom_firmware_info_v3_4 v34;
};
/*
* Return true if vbios supports sram ecc or false if not
*/
@ -466,10 +498,6 @@ int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev)
adev->pm.current_sclk = adev->clock.default_sclk;
adev->pm.current_mclk = adev->clock.default_mclk;
/* not technically a clock, but... */
adev->mode_info.firmware_flags =
le32_to_cpu(firmware_info->v31.firmware_capability);
ret = 0;
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
View File

@ -26,6 +26,7 @@
#define get_index_into_master_table(master_table, table_name) (offsetof(struct master_table, table_name) / sizeof(uint16_t))
uint32_t amdgpu_atomfirmware_query_firmware_capability(struct amdgpu_device *adev);
bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev);
void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev);
int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev);

2
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
View File

@ -344,7 +344,7 @@ struct amdgpu_mode_info {
/* pointer to fbdev info structure */
struct amdgpu_fbdev *rfbdev;
/* firmware flags */
u16 firmware_flags;
u32 firmware_flags;
/* pointer to backlight encoder */
struct amdgpu_encoder *bl_encoder;
u8 bl_level; /* saved backlight level */