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drm/amdgpu: fix vbios fetching for SR-IOV

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SR-IOV fetches the vbios from VRAM in some cases.
Re-enable the VRAM path for dGPUs and rename the function
to make it clear that it is not IGP specific.

Fixes: 042658d17a ("drm/amdgpu: clean up vbios fetching code")
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Tested-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2024-09-25 14:17:53 -04:00
parent 3cb576bc6d
commit a8387ddc0d
1 changed files with 9 additions and 2 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+9 -2
View File
@@ -87,8 +87,9 @@ static bool check_atom_bios(uint8_t *bios, size_t size)
* part of the system bios. On boot, the system bios puts a
* copy of the igp rom at the start of vram if a discrete card is
* present.
* For SR-IOV, the vbios image is also put in VRAM in the VF.
*/
static bool igp_read_bios_from_vram(struct amdgpu_device *adev)
static bool amdgpu_read_bios_from_vram(struct amdgpu_device *adev)
{
uint8_t __iomem *bios;
resource_size_t vram_base;
@@ -414,7 +415,7 @@ static bool amdgpu_get_bios_apu(struct amdgpu_device *adev)
goto success;
}
if (igp_read_bios_from_vram(adev)) {
if (amdgpu_read_bios_from_vram(adev)) {
dev_info(adev->dev, "Fetched VBIOS from VRAM BAR\n");
goto success;
}
@@ -448,6 +449,12 @@ static bool amdgpu_get_bios_dgpu(struct amdgpu_device *adev)
goto success;
}
/* this is required for SR-IOV */
if (amdgpu_read_bios_from_vram(adev)) {
dev_info(adev->dev, "Fetched VBIOS from VRAM BAR\n");
goto success;
}
if (amdgpu_read_platform_bios(adev)) {
dev_info(adev->dev, "Fetched VBIOS from platform\n");
goto success;