RE: [PATCH] drm/amdgpu: do optimization for psp command submit

["Deng, Emily" <Emily.Deng@xxxxxxx>]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Emily.Deng <Emily.Deng@xxxxxxx>

>-----Original Message-----
>From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Peng
>Ju Zhou
>Sent: Friday, December 25, 2020 3:02 PM
>To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>Subject: [PATCH] drm/amdgpu: do optimization for psp command submit
>
>From: pengzhou <PengJu.Zhou@xxxxxxx>
>
>In the psp command submit logic,
>the function msleep(1) delayed too long, Changing it to usleep_range(10, 100)
>to have a better performance.
>
>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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