xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/atomic: add debugfs file to dump out atomic state

Browse Source 
Useful to dump current state from debugfs, if turning on the drm.debug
bit is too much overhead.

The drm_state_dump() can also be used by drivers, for example to
implement a module param that dumps state on error irqs.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-6-git-send-email-robdclark@gmail.com
This commit is contained in:
Rob Clark
2016-11-05 11:08:10 -04:00
committed by Sean Paul
parent fceffb325b
commit 6559c901cb
3 changed files with 79 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/drm_debugfs.c
View File

@@ -36,6 +36,7 @@
#include <linux/export.h>
#include <drm/drmP.h>
#include <drm/drm_edid.h>
#include <drm/drm_atomic.h>
#include "drm_internal.h"
#if defined(CONFIG_DEBUG_FS)
@@ -163,6 +164,14 @@ int drm_debugfs_init(struct drm_minor *minor, int minor_id,
return ret;
}
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
ret = drm_atomic_debugfs_init(minor);
if (ret) {
DRM_ERROR("Failed to create atomic debugfs files\n");
return ret;
}
}
if (dev->driver->debugfs_init) {
ret = dev->driver->debugfs_init(minor);
if (ret) {