6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Likun Gao <Likun.Gao@xxxxxxx>
commit f4a94dbb6dc0bed10a5fc63718d00f1de45b12c0 upstream.
Correct the algorithm of active CU to skip disabled
sa for gfx v11.
Signed-off-by: Likun Gao <Likun.Gao@xxxxxxx>
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -6353,6 +6353,9 @@ static int gfx_v11_0_get_cu_info(struct
mutex_lock(&adev->grbm_idx_mutex);
for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
+ bitmap = i * adev->gfx.config.max_sh_per_se + j;
+ if (!((gfx_v11_0_get_sa_active_bitmap(adev) >> bitmap) & 1))
+ continue;
mask = 1;
counter = 0;
gfx_v11_0_select_se_sh(adev, i, j, 0xffffffff, 0);
