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drm/amdgpu: Avoid fetching VRAM vendor info

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The present way to fetch VRAM vendor information turns out to be not
reliable on GFX 9.4.3 dGPUs as well. Avoid using the data.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar 2024-01-31 16:34:32 +05:30 committed by Alex Deucher
parent 3fa6352415
commit 3d1554d999
1 changed files with 0 additions and 8 deletions
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8
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -1949,14 +1949,6 @@ static int gmc_v9_0_init_mem_ranges(struct amdgpu_device *adev)
static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev)
{
static const u32 regBIF_BIOS_SCRATCH_4 = 0x50;
u32 vram_info;
/* Only for dGPU, vendor informaton is reliable */
if (!amdgpu_sriov_vf(adev) && !(adev->flags & AMD_IS_APU)) {
vram_info = RREG32(regBIF_BIOS_SCRATCH_4);
adev->gmc.vram_vendor = vram_info & 0xF;
}
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
adev->gmc.vram_width = 128 * 64;
}