6.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lijo Lazar <lijo.lazar@xxxxxxx>
commit 55173942a63668bdc1d61812c7c9e0406aefb5bf upstream.
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@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 8 --------
1 file changed, 8 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1947,14 +1947,6 @@ static int gmc_v9_0_init_mem_ranges(stru
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;
}
