[AMD Official Use Only - General] Reviewed-by: Hawking Zhang <[email protected]>
Regards, Hawking -----Original Message----- From: Lazar, Lijo <[email protected]> Sent: Friday, February 2, 2024 23:36 To: [email protected] Cc: Zhang, Hawking <[email protected]>; Deucher, Alexander <[email protected]>; Kamal, Asad <[email protected]>; Ma, Le <[email protected]> Subject: [PATCH] drm/amdgpu: Avoid fetching VRAM vendor info 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 <[email protected]> --- 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
