diff options
Diffstat (limited to 'drivers/gpu/drm/drm_panic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_panic.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c index 948aed00595e..072752b658f0 100644 --- a/drivers/gpu/drm/drm_panic.c +++ b/drivers/gpu/drm/drm_panic.c @@ -27,6 +27,8 @@ #include <drm/drm_plane.h> #include <drm/drm_print.h> +#include "drm_crtc_internal.h" + MODULE_AUTHOR("Jocelyn Falempe"); MODULE_DESCRIPTION("DRM panic handler"); MODULE_LICENSE("GPL"); @@ -655,11 +657,11 @@ static struct drm_plane *to_drm_plane(struct kmsg_dumper *kd) return container_of(kd, struct drm_plane, kmsg_panic); } -static void drm_panic(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason) +static void drm_panic(struct kmsg_dumper *dumper, struct kmsg_dump_detail *detail) { struct drm_plane *plane = to_drm_plane(dumper); - if (reason == KMSG_DUMP_PANIC) + if (detail->reason == KMSG_DUMP_PANIC) draw_panic_plane(plane); } @@ -704,6 +706,26 @@ static void debugfs_register_plane(struct drm_plane *plane, int index) {} #endif /* CONFIG_DRM_PANIC_DEBUG */ /** + * drm_panic_is_enabled + * @dev: the drm device that may supports drm_panic + * + * returns true if the drm device supports drm_panic + */ +bool drm_panic_is_enabled(struct drm_device *dev) +{ + struct drm_plane *plane; + + if (!dev->mode_config.num_total_plane) + return false; + + drm_for_each_plane(plane, dev) + if (plane->helper_private && plane->helper_private->get_scanout_buffer) + return true; + return false; +} +EXPORT_SYMBOL(drm_panic_is_enabled); + +/** * drm_panic_register() - Initialize DRM panic for a device * @dev: the drm device on which the panic screen will be displayed. */ |