From: Jocelyn Falempe Date: Tue, 9 Apr 2024 16:30:47 +0000 (+0200) Subject: drm/imx: Add drm_panic support X-Git-Tag: io_uring-6.10-20240523~68^2~20^2~35 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=99b625194569f2039d8f277c8a09cd18c1438b65;p=linux-2.6-block.git drm/imx: 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. v7: * use drm_panic_gem_get_scanout_buffer() helper v8: * Replace get_scanout_buffer() logic with drm_panic_set_buffer() v9: * Revert to using get_scanout_buffer() (Sima) * move get_scanout_buffer() to plane helper functions v12: * Rename drm_panic_gem_get_scanout_buffer to drm_fb_dma_get_scanout_buffer (Thomas Zimmermann) Signed-off-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20240409163432.352518-9-jfalempe@redhat.com Acked-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c index dade8b59feae..704c549750f9 100644 --- a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c @@ -773,6 +773,13 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { .atomic_update = ipu_plane_atomic_update, }; +static const struct drm_plane_helper_funcs ipu_primary_plane_helper_funcs = { + .atomic_check = ipu_plane_atomic_check, + .atomic_disable = ipu_plane_atomic_disable, + .atomic_update = ipu_plane_atomic_update, + .get_scanout_buffer = drm_fb_dma_get_scanout_buffer, +}; + bool ipu_plane_atomic_update_pending(struct drm_plane *plane) { struct ipu_plane *ipu_plane = to_ipu_plane(plane); @@ -916,7 +923,10 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, ipu_plane->dma = dma; ipu_plane->dp_flow = dp; - drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); + if (type == DRM_PLANE_TYPE_PRIMARY) + drm_plane_helper_add(&ipu_plane->base, &ipu_primary_plane_helper_funcs); + else + drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) ret = drm_plane_create_zpos_property(&ipu_plane->base, zpos, 0,