From: pengzhou <PengJu.Zhou@xxxxxxx>
In the psp command submit logic,
the function msleep(1) can be delayed to 10+ ms sometimes,
During the driver init, it will hit msleep(1)
several times which increased the total time of full access.
Changing msleep(1) to usleep_range(10, 100)
and it can reduce about 50ms delay of the total time of full access.
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 523d22db094b..8d11b34fe40e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -249,7 +249,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
{
int ret;
int index;
- int timeout = 2000;
+ int timeout = 20000;
bool ras_intr = false;
bool skip_unsupport = false;
@@ -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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