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| author | Jocelyn Falempe <jfalempe@redhat.com> | 2024-04-09 19:30:46 +0300 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2024-04-15 17:13:50 +0300 |
| commit | 7e64f7c83c8e95a548fa63a48032b1d8ea1f93a6 (patch) | |
| tree | fcafe60e5574591b6324dc266970df81ed55869a /drivers/gpu/drm/mgag200 | |
| parent | 41e54853cae973ce812346d4c2b37a2aa6e02dcf (diff) | |
| download | linux-7e64f7c83c8e95a548fa63a48032b1d8ea1f93a6.tar.xz | |
drm/mgag200: Add drm_panic support
Add support for the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
v5:
* Also check that the plane is visible and primary. (Thomas Zimmermann)
v7:
* use drm_for_each_primary_visible_plane()
v8:
* Replace get_scanout_buffer() logic 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/20240409163432.352518-8-jfalempe@redhat.com
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/mgag200')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_drv.h | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_mode.c | 18 |
2 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 765e49fd8911..58a0e62eaf18 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -366,6 +366,7 @@ struct drm_crtc_state; struct drm_display_mode; struct drm_plane; struct drm_atomic_state; +struct drm_scanout_buffer; extern const uint32_t mgag200_primary_plane_formats[]; extern const size_t mgag200_primary_plane_formats_size; @@ -379,12 +380,16 @@ void mgag200_primary_plane_helper_atomic_enable(struct drm_plane *plane, struct drm_atomic_state *state); void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane, struct drm_atomic_state *old_state); +int mgag200_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb); + #define MGAG200_PRIMARY_PLANE_HELPER_FUNCS \ DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \ .atomic_check = mgag200_primary_plane_helper_atomic_check, \ .atomic_update = mgag200_primary_plane_helper_atomic_update, \ .atomic_enable = mgag200_primary_plane_helper_atomic_enable, \ - .atomic_disable = mgag200_primary_plane_helper_atomic_disable + .atomic_disable = mgag200_primary_plane_helper_atomic_disable, \ + .get_scanout_buffer = mgag200_primary_plane_helper_get_scanout_buffer #define MGAG200_PRIMARY_PLANE_FUNCS \ .update_plane = drm_atomic_helper_update_plane, \ diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index e17cb4c5f774..fc54851d3384 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -21,6 +21,7 @@ #include <drm/drm_framebuffer.h> #include <drm/drm_gem_atomic_helper.h> #include <drm/drm_gem_framebuffer_helper.h> +#include <drm/drm_panic.h> #include <drm/drm_print.h> #include "mgag200_drv.h" @@ -546,6 +547,23 @@ void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane, msleep(20); } +int mgag200_primary_plane_helper_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct mga_device *mdev = to_mga_device(plane->dev); + struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(mdev->vram); + + 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; +} + /* * CRTC */ |