path: root/drivers/gpu/drm/amd/amdgpu
diff options
authorTiezhu Yang <>2020-07-02 10:27:43 +0800
committerAlex Deucher <>2020-07-08 09:04:21 -0400
commite241df6987023e341105696d71ead87fee1cc395 (patch)
treee065be68a24ada0609500074460932f0ed64816d /drivers/gpu/drm/amd/amdgpu
parent497f15f2bdef0124b0803ba9cceadf7a9b670079 (diff)
gpu/drm: Remove debug info about CPU address
When I update the latest kernel, I see the following "____ptrval____" boot messages. [ 1.872600] radeon 0000:01:05.0: fence driver on ring 0 use gpu addr 0x0000000048000c00 and cpu addr 0x(____ptrval____) [ 1.879095] radeon 0000:01:05.0: fence driver on ring 5 use gpu addr 0x0000000040056038 and cpu addr 0x(____ptrval____) Both radeon_fence_driver_start_ring() and amdgpu_fence_driver_start_ring() have the similar issue, there exists the following two methods to solve it: (1) Use "%pK" instead of "%p" so that the CPU address can be printed when the kptr_restrict sysctl is set to 1. (2) Just completely drop the CPU address suggested by Christian, because the CPU address was useful in the past, but isn't any more. We now have a debugfs file to read the current fence values. Since the CPU address is not much useful, just remove the debug info about CPU address. Reviewed-by: Christian K├Ânig <> Signed-off-by: Tiezhu Yang <> Signed-off-by: Alex Deucher <>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 8d84975885cd..b8ce43c28116 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -424,9 +424,8 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
ring->fence_drv.irq_type = irq_type;
ring->fence_drv.initialized = true;
- DRM_DEV_DEBUG(adev->dev, "fence driver on ring %s use gpu addr "
- "0x%016llx, cpu addr 0x%p\n", ring->name,
- ring->fence_drv.gpu_addr, ring->fence_drv.cpu_addr);
+ DRM_DEV_DEBUG(adev->dev, "fence driver on ring %s use gpu addr 0x%016llx\n",
+ ring->name, ring->fence_drv.gpu_addr);
return 0;