The function msleep(1) can be delay to 10+ ms sometimes,
which contributes a big delay during the full access time.
Changing msleep(1) to usleep_range(10, 100)
and it can reduce about 50ms delay during full access time.
Signed-off-by: pengzhou <pengju.z...@amd.com>
Change-Id: I151a07c55068d5c429553ef0e6668f024c0c0f3d
---
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 523d22db094b..ef69051681cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -282,7 +282,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
ras_intr = amdgpu_ras_intr_triggered();
if (ras_intr)
break;
- msleep(1);
+ usleep_range(10, 100);
amdgpu_asic_invalidate_hdp(psp->adev, NULL);
}
--
2.17.1
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