From e2b51ac3278847aa79089b4a1b94b8d762af0052 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Mon, 2 May 2022 15:25:20 +0200 Subject: [PATCH] drm/vc4: crtc: Move the BO handling out of common page-flip callback We'll soon introduce another completion callback source that won't need to use the BO reference counting, so let's move it around to create a function we will be able to share between both callbacks. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/vc4/vc4_crtc.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -830,21 +830,8 @@ vc4_async_page_flip_complete(struct vc4_ drm_crtc_vblank_put(crtc); drm_framebuffer_put(flip_state->fb); - /* Decrement the BO usecnt in order to keep the inc/dec calls balanced - * when the planes are updated through the async update path. - * FIXME: we should move to generic async-page-flip when it's - * available, so that we can get rid of this hand-made cleanup_fb() - * logic. - */ - if (flip_state->old_fb) { - struct drm_gem_cma_object *cma_bo; - struct vc4_bo *bo; - - cma_bo = drm_fb_cma_get_gem_obj(flip_state->old_fb, 0); - bo = to_vc4_bo(&cma_bo->base); - vc4_bo_dec_usecnt(bo); + if (flip_state->old_fb) drm_framebuffer_put(flip_state->old_fb); - } kfree(flip_state); } @@ -853,8 +840,27 @@ static void vc4_async_page_flip_seqno_co { struct vc4_async_flip_state *flip_state = container_of(cb, struct vc4_async_flip_state, cb.seqno); + struct vc4_bo *bo = NULL; + + if (flip_state->old_fb) { + struct drm_gem_cma_object *cma_bo = + drm_fb_cma_get_gem_obj(flip_state->old_fb, 0); + bo = to_vc4_bo(&cma_bo->base); + } vc4_async_page_flip_complete(flip_state); + + /* + * Decrement the BO usecnt in order to keep the inc/dec + * calls balanced when the planes are updated through + * the async update path. + * + * FIXME: we should move to generic async-page-flip when + * it's available, so that we can get rid of this + * hand-made cleanup_fb() logic. + */ + if (bo) + vc4_bo_dec_usecnt(bo); } static void vc4_async_page_flip_fence_complete(struct dma_fence *fence,