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| author | Lijo Lazar <lijo.lazar@amd.com> | 2025-09-10 11:38:08 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-15 16:55:36 -0400 |
| commit | c3cdc3bebd1fc610d6051f8e0678c05091fcab4c (patch) | |
| tree | 6ba1770ebfc6463d555c3abc1e2f612b7d8567f0 /drivers/gpu | |
| parent | drm/amdgpu: wait pmfw polling mca bank info done (diff) | |
| download | linux-c3cdc3bebd1fc610d6051f8e0678c05091fcab4c.tar.gz linux-c3cdc3bebd1fc610d6051f8e0678c05091fcab4c.zip | |
drm/amdgpu: Read memory vendor information
Read VRAM vendor information from scratch register for GC v9.4.3 and
GC v9.5.0 SOCs.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 8404695eb13f..0d1dd587db5f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1834,11 +1834,19 @@ static void gmc_v9_0_save_registers(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; + adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM; adev->gmc.vram_width = 128 * 64; if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 5, 0)) adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM3E; + + if (!(adev->flags & AMD_IS_APU) && !amdgpu_sriov_vf(adev)) { + vram_info = RREG32(regBIF_BIOS_SCRATCH_4); + adev->gmc.vram_vendor = vram_info & 0xF; + } } static int gmc_v9_0_sw_init(struct amdgpu_ip_block *ip_block) |