From: Sean Paul Date: Fri, 30 Nov 2018 22:00:02 +0000 (-0500) Subject: drm/msm: dpu: Grab the modeset locks in frame_event X-Git-Tag: v5.15~7108^2^2~29 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f449aa6e447c321585dbb97178fedac7183bc2f3;p=platform%2Fkernel%2Flinux-starfive.git drm/msm: dpu: Grab the modeset locks in frame_event This patch wraps dpu_core_perf_crtc_release_bw() with modeset locks since it digs into the state objects. Changes in v2: - None Changes in v3: - Use those nifty new DRM_MODESET_LOCK_ALL_* helpers (Daniel) Cc: Daniel Vetter Cc: Jeykumar Sankaran Acked-by: Daniel Vetter Reviewed-by: Jeykumar Sankaran Signed-off-by: Sean Paul Signed-off-by: Rob Clark --- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 6da2492..8881f88 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -306,6 +306,19 @@ static void dpu_crtc_vblank_cb(void *data) trace_dpu_crtc_vblank_cb(DRMID(crtc)); } +static void dpu_crtc_release_bw_unlocked(struct drm_crtc *crtc) +{ + int ret = 0; + struct drm_modeset_acquire_ctx ctx; + + DRM_MODESET_LOCK_ALL_BEGIN(crtc->dev, ctx, 0, ret); + dpu_core_perf_crtc_release_bw(crtc); + DRM_MODESET_LOCK_ALL_END(ctx, ret); + if (ret) + DRM_ERROR("Failed to acquire modeset locks to release bw, %d\n", + ret); +} + static void dpu_crtc_frame_event_work(struct kthread_work *work) { struct dpu_crtc_frame_event *fevent = container_of(work, @@ -335,7 +348,7 @@ static void dpu_crtc_frame_event_work(struct kthread_work *work) /* release bandwidth and other resources */ trace_dpu_crtc_frame_event_done(DRMID(crtc), fevent->event); - dpu_core_perf_crtc_release_bw(crtc); + dpu_crtc_release_bw_unlocked(crtc); } else { trace_dpu_crtc_frame_event_more_pending(DRMID(crtc), fevent->event);