[PATCH AUTOSEL 6.6 28/32] drm/amdgpu: Use another offset for GC 9.4.3 remap

[Sasha Levin]

From: Lijo Lazar <lijo.la...@amd.com>

[ Upstream commit ed6e4f0a27ebafffbd12bf3878ab004787685d8a ]

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.la...@amd.com>
Reviewed-by: Hawking Zhang <hawking.zh...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 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 f5be40d7ba367..b85011106347c 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1159,6 +1159,11 @@ 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 */
-- 
2.42.0