From a8387ddc0d15a365dd04baaa325a863d3612e020 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 25 Sep 2024 14:17:53 -0400 Subject: drm/amdgpu: fix vbios fetching for SR-IOV 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: 042658d17a54 ("drm/amdgpu: clean up vbios fetching code") Reviewed-by: Yang Wang Tested-by: Yang Wang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c index 46bf623919d7..45affc02548c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c @@ -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; -- cgit v1.2.3