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| author | Jocelyn Falempe <jfalempe@redhat.com> | 2024-04-09 18:30:45 +0200 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2024-04-15 16:13:39 +0200 |
| commit | 41e54853cae973ce812346d4c2b37a2aa6e02dcf (patch) | |
| tree | 319896057c1531d29dc194ee548cfa9dc1f6a42e /drivers/gpu/drm/tiny | |
| parent | 879b3b6511fe92b1b93dfc543961347289a8aeaa (diff) | |
| download | linux-41e54853cae973ce812346d4c2b37a2aa6e02dcf.tar.gz linux-41e54853cae973ce812346d4c2b37a2aa6e02dcf.tar.bz2 linux-41e54853cae973ce812346d4c2b37a2aa6e02dcf.zip | |
drm/simpledrm: Add drm_panic support
Add support for the drm_panic module, which displays a user-friendly
message to the screen when a kernel panic occurs.
v8:
* Replace get_scanout_buffer() with drm_panic_set_buffer()
(Thomas Zimmermann)
v9:
* Revert to using get_scanout_buffer() (Sima)
* move get_scanout_buffer() to plane helper functions (Thomas Zimmermann)
v12:
* Use array for map and pitch in struct drm_scanout_buffer
to support multi-planar format later. (Thomas Zimmermann)
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240409163432.352518-7-jfalempe@redhat.com
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/tiny')
| -rw-r--r-- | drivers/gpu/drm/tiny/simpledrm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index 7ce1c4617675..1d8fa07572c5 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -25,6 +25,7 @@ #include <drm/drm_gem_shmem_helper.h> #include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> +#include <drm/drm_panic.h> #include <drm/drm_probe_helper.h> #define DRIVER_NAME "simpledrm" @@ -671,11 +672,26 @@ static void simpledrm_primary_plane_helper_atomic_disable(struct drm_plane *plan drm_dev_exit(idx); } +static int simpledrm_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct simpledrm_device *sdev = simpledrm_device_of_dev(plane->dev); + + sb->width = sdev->mode.hdisplay; + sb->height = sdev->mode.vdisplay; + sb->format = sdev->format; + sb->pitch[0] = sdev->pitch; + sb->map[0] = sdev->screen_base; + + return 0; +} + static const struct drm_plane_helper_funcs simpledrm_primary_plane_helper_funcs = { DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, .atomic_check = simpledrm_primary_plane_helper_atomic_check, .atomic_update = simpledrm_primary_plane_helper_atomic_update, .atomic_disable = simpledrm_primary_plane_helper_atomic_disable, + .get_scanout_buffer = simpledrm_primary_plane_helper_get_scanout_buffer, }; static const struct drm_plane_funcs simpledrm_primary_plane_funcs = { |