mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

drm/amdgpu: Avoid fetching VRAM vendor info

Browse source 
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>
Cc: stable@vger.kernel.org
This commit is contained in:
Lijo Lazar 2024-01-31 16:34:32 +05:30 committed by Alex Deucher
parent 29c5da1a12
commit 55173942a6
1 changed files with 0 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
View file

@ -1947,14 +1947,6 @@ 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;
}