This enables panic message output for fb cma helper framebuffers.
Signed-off-by: Noralf Trønnes noralf@tronnes.org --- drivers/gpu/drm/drm_fb_cma_helper.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 1fd6eac..2f1b012 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -126,9 +126,19 @@ int drm_fb_cma_create_handle(struct drm_framebuffer *fb, } EXPORT_SYMBOL(drm_fb_cma_create_handle);
+static void *drm_fb_cma_panic_vmap(struct drm_framebuffer *fb) +{ + struct drm_fb_cma *fb_cma = to_fb_cma(fb); + struct drm_gem_cma_object *cma_obj = fb_cma->obj[0]; + + /* A PRIME imported buffer will not have it's vaddr set. */ + return cma_obj ? cma_obj->vaddr : NULL; +} + static struct drm_framebuffer_funcs drm_fb_cma_funcs = { .destroy = drm_fb_cma_destroy, .create_handle = drm_fb_cma_create_handle, + .panic_vmap = drm_fb_cma_panic_vmap, };
static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,