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authorDave Airlie <airlied@redhat.com>2023-12-05 05:11:41 +0300
committerDave Airlie <airlied@redhat.com>2023-12-05 05:11:41 +0300
commit5edfd7d94b0310b74136b666551f1d23711ed445 (patch)
tree5c9f48d16e659e1166a04e3374ab953f62ad7190 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
parenta13fee31f56449fc600d9e064c7b32302f92dcef (diff)
parentb719a9c15d52d4f56bdea8241a5d90fd9197ce99 (diff)
downloadlinux-5edfd7d94b0310b74136b666551f1d23711ed445.tar.xz
Merge tag 'amd-drm-next-6.8-2023-12-01' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.8-2023-12-01: amdgpu: - Add new 64 bit sequence number infrastructure. This will ultimately be used for user queue synchronization. - GPUVM updates - Misc code cleanups - RAS updates - DCN 3.5 updates - Rework PCIe link speed handling - Document GPU reset types - DMUB fixes - eDP fixes - NBIO 7.9 updates - NBIO 7.11 updates - SubVP updates - DCN 3.1.4 fixes - ABM fixes - AGP aperture fix - DCN 3.1.5 fix - Fix some potential error path memory leaks - Enable PCIe PMEs - Add XGMI, PCIe state dumping for aqua vanjaram - GFX11 golden register updates - Misc display fixes amdkfd: - Migrate TLB flushing logic to amdgpu - Trap handler fixes - Fix restore workers handling on suspend and reset - Fix possible memory leak in pqm_uninit() radeon: - Fix some possible overflows in command buffer checking - Check for errors in ring_lock From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231201181743.5313-1-alexander.deucher@amd.com Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index c1efa13bccbb..c480192e33f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -638,6 +638,9 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
+ if (!adev->didt_rreg)
+ return -EOPNOTSUPP;
+
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
@@ -694,6 +697,9 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
if (size & 0x3 || *pos & 0x3)
return -EINVAL;
+ if (!adev->didt_wreg)
+ return -EOPNOTSUPP;
+
r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
if (r < 0) {
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);