drm/amdgpu/gmc9: set mc vm fb offset for raven

APU fb offset is set by sbios, which is different with DGPU.

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index 005075ff00f7..bd1976a03c09 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -31,6 +31,11 @@
 
 #include "soc15_common.h"
 
+u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev)
+{
+        return (u64)RREG32(SOC15_REG_OFFSET(GC, 0, mmMC_VM_FB_OFFSET)) << 24;
+}
+
 int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev)
 {
         u32 tmp;