[PATCH] drm/amdgpu: Use another offset for GC 9.4.3 remap

[Lijo Lazar]

The legacy region at 0x7F000 maps to valid registers in GC 9.4.3 SOCs.
Use 0x1A000 offset instead as MMIO register remap region.

Signed-off-by: Lijo Lazar <lijo.lazar at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/soc15.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index e3d41e8aac9d..9ad4d6d3122b 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1162,6 +1162,11 @@ static int soc15_common_early_init(void *handle)
 			AMD_PG_SUPPORT_VCN_DPG |
 			AMD_PG_SUPPORT_JPEG;
 		adev->external_rev_id = adev->rev_id + 0x46;
+		/* GC 9.4.3 uses MMIO register region hole at a different offset */
+		if (!amdgpu_sriov_vf(adev)) {
+			adev->rmmio_remap.reg_offset = 0x1A000;
+			adev->rmmio_remap.bus_addr = adev->rmmio_base + 0x1A000;
+		}
 		break;
 	default:
 		/* FIXME: not supported yet */
-- 
2.25.1