| From 202e0b227b906cb80a2791f21216a55d9468d61b Mon Sep 17 00:00:00 2001 |
| From: Rex Zhu <Rex.Zhu@amd.com> |
| Date: Wed, 7 Dec 2016 17:44:20 +0800 |
| Subject: drm/amdgpu: fix init save/restore list in gfx_v8.0 |
| |
| From: Rex Zhu <Rex.Zhu@amd.com> |
| |
| commit 202e0b227b906cb80a2791f21216a55d9468d61b upstream. |
| |
| set valid data to mmRLC_SRM_INDEX_CNTL_ADDRx/DATAx. |
| |
| Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> |
| Reviewed-by: Alex Deucher <alexander.deucher@amd.com> |
| Signed-off-by: Alex Deucher <alexander.deucher@amd.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 8 ++++++-- |
| 1 file changed, 6 insertions(+), 2 deletions(-) |
| |
| --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c |
| +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c |
| @@ -3798,8 +3798,12 @@ static int gfx_v8_0_init_save_restore_li |
| temp = mmRLC_SRM_INDEX_CNTL_ADDR_0; |
| data = mmRLC_SRM_INDEX_CNTL_DATA_0; |
| for (i = 0; i < sizeof(unique_indices) / sizeof(int); i++) { |
| - amdgpu_mm_wreg(adev, temp + i, unique_indices[i] & 0x3FFFF, false); |
| - amdgpu_mm_wreg(adev, data + i, unique_indices[i] >> 20, false); |
| + if (unique_indices[i] != 0) { |
| + amdgpu_mm_wreg(adev, temp + i, |
| + unique_indices[i] & 0x3FFFF, false); |
| + amdgpu_mm_wreg(adev, data + i, |
| + unique_indices[i] >> 20, false); |
| + } |
| } |
| kfree(register_list_format); |
| |
