On Fri, Feb 2, 2024 at 10:53 AM Lijo Lazar <lijo.lazar@xxxxxxx> wrote:
>
> 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>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index a3a11538207b..c1161f465b37 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -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;
> }
> --
> 2.25.1
>
