Re: [PATCH] amdgpu/psp: Adjust usleep_range in fence wait

[Lazar, Lijo]

On 10-Feb-26 1:38 PM, Ce Sun wrote:

Tune the sleep interval in the PSP fence wait loop from 10-100us to 60-100us.
This adjustment results in an overall wait window of 1.2s (60us * 20000 
iterations)
to 2 seconds (100us * 20000 iterations), which guarantees that we can retrieve
the correct fence value

Signed-off-by: Ce Sun <cesun...@amd.com>

Reviewed-by: Lijo Lazar <lijo.la...@amd.com>

Thanks,
Lijo

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index b0540b009e84..5eeea965032a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -735,7 +735,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
                ras_intr = amdgpu_ras_intr_triggered();
                if (ras_intr)
                        break;
-               usleep_range(10, 100);
+               usleep_range(60, 100);
                amdgpu_device_invalidate_hdp(psp->adev, NULL);
        }