From bdc571464c49740ce56c56e108d60f825336eb89 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Thu, 15 Dec 2016 12:51:42 +0100 Subject: [PATCH] drm/atomic: Clean up wait_for_vblanks, v2. Stop relying on a per crtc_state last_vblank_count, we shouldn't touch crtc_state after commit. Move it to atomic_state->crtcs. Also stop re-using new_crtc_state->enable, we can now simply set a bitmask with crtc_crtc_mask. Changes since v1: - Keep last_vblank_count in __drm_crtc_state. Signed-off-by: Maarten Lankhorst Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/8e4759a4-24d3-3f80-bd1a-1e7a9c83b612@linux.intel.com --- drivers/gpu/drm/drm_atomic_helper.c | 28 ++++++++++++++-------------- include/drm/drm_atomic.h | 1 + include/drm/drm_crtc.h | 5 ----- 3 files changed, 15 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index c2070bb94b7a..d1d678d63b84 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1117,19 +1117,19 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; int i, ret; + unsigned crtc_mask = 0; - for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { - /* No one cares about the old state, so abuse it for tracking - * and store whether we hold a vblank reference (and should do a - * vblank wait) in the ->enable boolean. */ - old_crtc_state->enable = false; + /* + * Legacy cursor ioctls are completely unsynced, and userspace + * relies on that (by doing tons of cursor updates). + */ + if (old_state->legacy_cursor_update) + return; - if (!crtc->state->active) - continue; + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { + struct drm_crtc_state *new_crtc_state = crtc->state; - /* Legacy cursor ioctls are completely unsynced, and userspace - * relies on that (by doing tons of cursor updates). */ - if (old_state->legacy_cursor_update) + if (!new_crtc_state->active) continue; if (!drm_atomic_helper_framebuffer_changed(dev, @@ -1140,16 +1140,16 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, if (ret != 0) continue; - old_crtc_state->enable = true; - old_crtc_state->last_vblank_count = drm_crtc_vblank_count(crtc); + crtc_mask |= drm_crtc_mask(crtc); + old_state->crtcs[i].last_vblank_count = drm_crtc_vblank_count(crtc); } for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { - if (!old_crtc_state->enable) + if (!(crtc_mask & drm_crtc_mask(crtc))) continue; ret = wait_event_timeout(dev->vblank[i].queue, - old_crtc_state->last_vblank_count != + old_state->crtcs[i].last_vblank_count != drm_crtc_vblank_count(crtc), msecs_to_jiffies(50)); diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index b74f04c49713..8cc7ca2079fb 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -145,6 +145,7 @@ struct __drm_crtcs_state { struct drm_crtc_state *state; struct drm_crtc_commit *commit; s64 __user *out_fence_ptr; + unsigned last_vblank_count; }; struct __drm_connnectors_state { diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 9ef0ac0ce69f..6920dee3a2d1 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -90,8 +90,6 @@ struct drm_plane_helper_funcs; * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes * @connector_mask: bitmask of (1 << drm_connector_index(connector)) of attached connectors * @encoder_mask: bitmask of (1 << drm_encoder_index(encoder)) of attached encoders - * @last_vblank_count: for helpers and drivers to capture the vblank of the - * update to ensure framebuffer cleanup isn't done too early * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings * @mode: current mode timings * @mode_blob: &drm_property_blob for @mode @@ -137,9 +135,6 @@ struct drm_crtc_state { u32 connector_mask; u32 encoder_mask; - /* last_vblank_count: for vblank waits before cleanup */ - u32 last_vblank_count; - /* adjusted_mode: for use by helpers and drivers */ struct drm_display_mode adjusted_mode; -- 2.20.1