diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 684a5f34d60d..7669b3259f35 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -467,9 +467,16 @@ static int gmc_v8_0_mc_init(struct amdgpu_device *adev) /* size in MB on si */ adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; - adev->mc.visible_vram_size = adev->mc.aper_size; + +#ifdef CONFIG_X86_64 + if (adev->flags & AMD_IS_APU) { + adev->mc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22; + adev->mc.aper_size = adev->mc.real_vram_size; + } +#endif /* In case the PCI BAR is larger than the actual amount of vram */ + adev->mc.visible_vram_size = adev->mc.aper_size; if (adev->mc.visible_vram_size > adev->mc.real_vram_size) adev->mc.visible_vram_size = adev->mc.real_vram_size; |