drm/amdgpu: Modify GC register access from MMIO to RLCG in file soc15.c

In SRIOV environment, KMD should access GC registers
with RLCG if GC indirect access flag enabled.
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/soc15.c

@@ -633,7 +633,9 @@ void soc15_program_register_sequence(struct amdgpu_device *adev,
 		if (entry->and_mask == 0xffffffff) {
 			tmp = entry->or_mask;
 		} else {
-			tmp = RREG32(reg);
+			tmp = (entry->hwip == GC_HWIP) ?
+				RREG32_SOC15_IP(GC, reg) : RREG32(reg);
+
 			tmp &= ~(entry->and_mask);
 			tmp |= (entry->or_mask & entry->and_mask);
 		}
@@ -644,7 +646,8 @@ void soc15_program_register_sequence(struct amdgpu_device *adev,
 			reg == SOC15_REG_OFFSET(GC, 0, mmSH_MEM_CONFIG))
 			WREG32_RLC(reg, tmp);
 		else
-			WREG32(reg, tmp);
+			(entry->hwip == GC_HWIP) ?
+				WREG32_SOC15_IP(GC, reg, tmp) : WREG32(reg, tmp);
 
 	}