From: "Deng, Emily" <Emily.Deng@amd.com>
To: "Zhou, Peng Ju" <PengJu.Zhou@amd.com>,
"amd-gfx@lists.freedesktop.org" <amd-gfx@lists.freedesktop.org>
Subject: RE: [PATCH] drm/amdgpu: reduce the full access time by about 50ms
Date: Fri, 25 Dec 2020 04:20:17 +0000 [thread overview]
Message-ID: <BY5PR12MB4115A0AD3C9AEE4A5A155F808FDC0@BY5PR12MB4115.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20201224060434.18144-1-PengJu.Zhou@amd.com>
[AMD Official Use Only - Internal Distribution Only]
Reviewed-by: Emily.Deng <Emily.Deng@amd.com>
>-----Original Message-----
>From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> On Behalf Of
>pengzhou
>Sent: Thursday, December 24, 2020 2:05 PM
>To: amd-gfx@lists.freedesktop.org
>Subject: [PATCH] drm/amdgpu: reduce the full access time by about 50ms
>
>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.Zhou@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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prev parent reply other threads:[~2020-12-25 4:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-24 6:04 [PATCH] drm/amdgpu: reduce the full access time by about 50ms pengzhou
2020-12-24 22:44 ` Paul Menzel
2020-12-25 6:34 ` Zhou, Peng Ju
2020-12-25 10:53 ` Paul Menzel
2020-12-31 5:15 ` Zhou, Peng Ju
2020-12-25 4:20 ` Deng, Emily [this message]
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