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drm/amdgpu: switch to cached fw flags for gpu virt cap

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Check cached firmware_flags to determine if gpu
virtualization is supported in vbios

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 21:56:50 +08:00
committed by Alex Deucher
parent 5968c6a2ba
commit 58ff791ad3
3 changed files with 13 additions and 16 deletions
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25
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
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@@ -68,23 +68,20 @@ uint32_t amdgpu_atomfirmware_query_firmware_capability(struct amdgpu_device *ade
return fw_cap;
}
bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev)
/*
* Helper function to query gpu virtualizaiton capability
*
* @adev: amdgpu_device pointer
*
* Return true if gpu virtualization is supported or false if not
*/
bool amdgpu_atomfirmware_gpu_virtualization_supported(struct amdgpu_device *adev)
{
int index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
firmwareinfo);
uint16_t data_offset;
u32 fw_cap;
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);
fw_cap = adev->mode_info.firmware_flags;
if (le32_to_cpu(firmware_info->firmware_capability) &
ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION)
return true;
}
return false;
return (fw_cap & ATOM_FIRMWARE_CAP_GPU_VIRTUALIZATION) ? true : false;
}
void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)