From: Ce Sun <cesun102@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <Lijo.Lazar@amd.com>, Ce Sun <cesun102@amd.com>
Subject: [PATCH] amdgpu/psp: Adjust usleep_range in fence wait
Date: Tue, 10 Feb 2026 15:52:48 +0800 [thread overview]
Message-ID: <20260210075248.3017892-1-cesun102@amd.com> (raw)
Tune the sleep interval in the PSP fence wait loop from 10-100us to 30-100us.
This adjustment results in an overall wait window of 600ms (30us * 20000 iterations)
to 2 seconds (100us * 20000 iterations), which guarantees that we can retrieve
the correct fence value
Signed-off-by: Ce Sun <cesun102@amd.com>
---
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..b08a57a07331 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(30, 100);
amdgpu_device_invalidate_hdp(psp->adev, NULL);
}
--
2.34.1
next reply other threads:[~2026-02-10 7:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-10 7:52 Ce Sun [this message]
2026-02-10 8:05 ` [PATCH] amdgpu/psp: Adjust usleep_range in fence wait Sun, Ce(Overlord)
-- strict thread matches above, loose matches on Subject: below --
2026-02-10 8:08 Ce Sun
2026-02-10 9:24 ` Lazar, Lijo
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