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drm/amdgpu: Reorder to read EFI exported ROM first

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On EFI BIOSes, PCI ROM may be exported through EFI_PCI_IO_PROTOCOL and
expansion ROM BARs may not be enabled. Choose to read from EFI exported
ROM data before reading PCI Expansion ROM BAR.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2024-08-12 09:02:57 +05:30 committed by Alex Deucher
parent e69c2dd753
commit 9c081c11c6
1 changed files with 5 additions and 5 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
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@ -431,6 +431,11 @@ bool amdgpu_get_bios(struct amdgpu_device *adev)
goto success;
}
if (amdgpu_read_platform_bios(adev)) {
dev_info(adev->dev, "Fetched VBIOS from platform\n");
goto success;
}
if (amdgpu_read_bios(adev)) {
dev_info(adev->dev, "Fetched VBIOS from ROM BAR\n");
goto success;
@ -446,11 +451,6 @@ bool amdgpu_get_bios(struct amdgpu_device *adev)
goto success;
}
if (amdgpu_read_platform_bios(adev)) {
dev_info(adev->dev, "Fetched VBIOS from platform\n");
goto success;
}
dev_err(adev->dev, "Unable to locate a BIOS ROM\n");
return false;