diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index 389bad724273..deab64765388 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -26,6 +26,7 @@ #include <linux/kthread.h> #include <linux/pci.h> #include <linux/uaccess.h> +#include <linux/security.h> #include <linux/pm_runtime.h> #include "amdgpu.h" @@ -1739,6 +1740,12 @@ int amdgpu_debugfs_regs_init(struct amdgpu_device *adev) struct dentry *ent, *root = minor->debugfs_root; unsigned int i; + if (security_locked_down(LOCKDOWN_PCI_ACCESS)) { + drm_info(adev_to_drm(adev), + "amdgpu: HW debugfs nodes disabled (kernel lockdown)\n"); + return 0; + } + for (i = 0; i < ARRAY_SIZE(debugfs_regs); i++) { ent = debugfs_create_file(debugfs_regs_names[i], S_IFREG | 0400, root, @@ -2171,6 +2178,8 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev) if (!ring) continue; + if (ring == &adev->cper.ring_buf && !adev->cper.enabled) + continue; amdgpu_debugfs_ring_init(adev, ring); } |