[AMD Official Use Only - General]
Reviewed-by: Yifan Zhang <yifan1.zhang@xxxxxxx>
-----Original Message-----
From: Huang, Tim <Tim.Huang@xxxxxxx>
Sent: Tuesday, November 21, 2023 2:26 PM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Zhang, Yifan <Yifan1.Zhang@xxxxxxx>; Huang, Tim <Tim.Huang@xxxxxxx>
Subject: [PATCH] drm/amdgpu: fix memory overflow in the IB test
Fix a memory overflow issue in the gfx IB test for some ASICs. At least 20 bytes are needed for the IB test packet.
Signed-off-by: Tim Huang <Tim.Huang@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 0c6133cc5e57..f281eecaeeec 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -419,7 +419,7 @@ static int gfx_v11_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD);
cpu_ptr = &adev->wb.wb[index];
- r = amdgpu_ib_get(adev, NULL, 16, AMDGPU_IB_POOL_DIRECT, &ib);
+ r = amdgpu_ib_get(adev, NULL, 20, AMDGPU_IB_POOL_DIRECT, &ib);
if (r) {
DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
goto err1;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 885ebd703260..4b0eda46405f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -883,7 +883,7 @@ static int gfx_v8_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
gpu_addr = adev->wb.gpu_addr + (index * 4);
adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD);
memset(&ib, 0, sizeof(ib));
- r = amdgpu_ib_get(adev, NULL, 16,
+ r = amdgpu_ib_get(adev, NULL, 20,
AMDGPU_IB_POOL_DIRECT, &ib);
if (r)
goto err1;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index e3ff6e46f3f7..a55710bf6e01 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -1039,7 +1039,7 @@ static int gfx_v9_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
gpu_addr = adev->wb.gpu_addr + (index * 4);
adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD);
memset(&ib, 0, sizeof(ib));
- r = amdgpu_ib_get(adev, NULL, 16,
+ r = amdgpu_ib_get(adev, NULL, 20,
AMDGPU_IB_POOL_DIRECT, &ib);
if (r)
goto err1;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
index 40d06d32bb74..603988e49cd5 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -297,7 +297,7 @@ static int gfx_v9_4_3_ring_test_ib(struct amdgpu_ring *ring, long timeout)
gpu_addr = adev->wb.gpu_addr + (index * 4);
adev->wb.wb[index] = cpu_to_le32(0xCAFEDEAD);
memset(&ib, 0, sizeof(ib));
- r = amdgpu_ib_get(adev, NULL, 16,
+ r = amdgpu_ib_get(adev, NULL, 20,
AMDGPU_IB_POOL_DIRECT, &ib);
if (r)
goto err1;
--
2.39.2
