diff options
| author | Ryosuke Yasuoka <ryasuoka@redhat.com> | 2025-06-13 22:20:14 +0900 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2025-06-23 11:30:18 +0200 |
| commit | a629feabb53b8d714caa8fb9f307517218a5fbcd (patch) | |
| tree | 168fea379ecec3ea04faa042304f1d75926c4e10 | |
| parent | 3828a643e808b8f2a90f8ba08f68ad3138b1026e (diff) | |
drm/bochs: Add support for drm_panic
Add drm_panic module for bochs drm so that panic screen can be displayed
on panic.
Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250613132023.106946-1-ryasuoka@redhat.com
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/tiny/bochs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c index 8706763af8fb..8d3b7c4fa6a4 100644 --- a/drivers/gpu/drm/tiny/bochs.c +++ b/drivers/gpu/drm/tiny/bochs.c @@ -19,6 +19,7 @@ #include <drm/drm_gem_shmem_helper.h> #include <drm/drm_managed.h> #include <drm/drm_module.h> +#include <drm/drm_panic.h> #include <drm/drm_plane_helper.h> #include <drm/drm_probe_helper.h> @@ -469,10 +470,28 @@ static void bochs_primary_plane_helper_atomic_update(struct drm_plane *plane, bochs_hw_setformat(bochs, fb->format); } +static int bochs_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct bochs_device *bochs = to_bochs_device(plane->dev); + struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(bochs->fb_map); + + if (plane->state && plane->state->fb) { + sb->format = plane->state->fb->format; + sb->width = plane->state->fb->width; + sb->height = plane->state->fb->height; + sb->pitch[0] = plane->state->fb->pitches[0]; + sb->map[0] = map; + return 0; + } + return -ENODEV; +} + static const struct drm_plane_helper_funcs bochs_primary_plane_helper_funcs = { DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, .atomic_check = bochs_primary_plane_helper_atomic_check, .atomic_update = bochs_primary_plane_helper_atomic_update, + .get_scanout_buffer = bochs_primary_plane_helper_get_scanout_buffer, }; static const struct drm_plane_funcs bochs_primary_plane_funcs = { |