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drm/amdgpu: Add memory vendor information

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For ASICs with GC v9.4.3, determine the vendor information from scratch
register.

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>
This commit is contained in:
Lijo Lazar 2023-08-04 09:52:23 +05:30 committed by Alex Deucher
parent 0dee726395
commit e20ff05170
1 changed files with 18 additions and 8 deletions
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26
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -1998,6 +1998,19 @@ static int gmc_v9_0_init_mem_ranges(struct amdgpu_device *adev)
return 0;
}
static void gmc_v9_4_3_init_vram_info(struct amdgpu_device *adev)
{
static const u32 regBIF_BIOS_SCRATCH_4 = 0x50;
u32 vram_info;
if (!amdgpu_sriov_vf(adev)) {
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;
}
static int gmc_v9_0_sw_init(void *handle)
{
int r, vram_width = 0, vram_type = 0, vram_vendor = 0, dma_addr_bits;
@ -2010,15 +2023,12 @@ static int gmc_v9_0_sw_init(void *handle)
spin_lock_init(&adev->gmc.invalidate_lock);
if (!(adev->bios) || adev->gmc.is_app_apu) {
if (adev->ip_versions[GC_HWIP][0] == IP_VERSION(9, 4, 3)) {
gmc_v9_4_3_init_vram_info(adev);
} else if (!adev->bios) {
if (adev->flags & AMD_IS_APU) {
if (adev->gmc.is_app_apu) {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
adev->gmc.vram_width = 128 * 64;
} else {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_DDR4;
adev->gmc.vram_width = 64 * 64;
}
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_DDR4;
adev->gmc.vram_width = 64 * 64;
} else {
adev->gmc.vram_type = AMDGPU_VRAM_TYPE_HBM;
adev->gmc.vram_width = 128 * 64;