From 64a86b097dfea8e3abb13c2cb61b32332580e8f1 Mon Sep 17 00:00:00 2001
From: Sonny Jiang <sonny.jiang@amd.com>
Date: Fri, 24 Mar 2023 17:44:59 -0400
Subject: drm/amdgpu: Use a different value than 0xDEADBEEF for jpeg ring test
Git-commit: e7947c021a8b394677ab875288565d4dfcac779a
Patch-mainline: v6.5-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
The 0xDEADBEEF standard anti-hang value. Use it may cause
fake pass.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
index 2acd25a2a842..3add4b4f0667 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_jpeg.c
@@ -133,12 +133,12 @@ int amdgpu_jpeg_dec_ring_test_ring(struct amdgpu_ring *ring)
RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch[ring->pipe]);
amdgpu_ring_write(ring, PACKET0(adev->jpeg.internal.jpeg_pitch[ring->pipe], 0));
- amdgpu_ring_write(ring, 0xDEADBEEF);
+ amdgpu_ring_write(ring, 0xABADCAFE);
amdgpu_ring_commit(ring);
for (i = 0; i < adev->usec_timeout; i++) {
tmp = RREG32(adev->jpeg.inst[ring->me].external.jpeg_pitch[ring->pipe]);
- if (tmp == 0xDEADBEEF)
+ if (tmp == 0xABADCAFE)
break;
udelay(1);
}
--
2.42.0