From: Ce Sun <cesun102@amd.com>
Date: Tue, 10 Feb 2026 07:32:01 +0000 (+0800)
Subject: drm/amdgpu: Adjust usleep_range in fence wait
X-Git-Tag: v6.19.6~423
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=373508e495c006455bcb3b5922a109106e30e4ab;p=thirdparty%2Fkernel%2Fstable.git

drm/amdgpu: Adjust usleep_range in fence wait

[ Upstream commit 3ee1c72606bd2842f0f377fd4b118362af0323ae ]

Tune the sleep interval in the PSP fence wait loop from 10-100us to
60-100us.This adjustment results in an overall wait window of 1.2s
(60us * 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>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 0b10497d487c3..81bdd6aaad2a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -726,7 +726,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
 		ras_intr = amdgpu_ras_intr_triggered();
 		if (ras_intr)
 			break;
-		usleep_range(10, 100);
+		usleep_range(60, 100);
 		amdgpu_device_invalidate_hdp(psp->adev, NULL);
 	}