From: Bruce Wang Date: Fri, 5 Oct 2018 21:04:02 +0000 (-0400) Subject: drm/msm/dpu: Remove suspend state tracking from crtc X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7a007a121d342f0948be1f06ad61cdc953f7dab6;p=openwrt%2Fstaging%2Fblogic.git drm/msm/dpu: Remove suspend state tracking from crtc Since drm core's modeset locks serialize atomic commits, we don't need to track whether or not we're in a suspended state from inside the crtc for dpu_crtc_enable/disable. This patch removes the suspend logic from the crtc and removes the relevant tracing from dpu_trace. Since we removed all calls to dpu_kms_is_suspend_state, we can remove that function and the suspend_state field of dpu_kms as well. v2: added patch to patchset v3: reworded commit body and moved deletion of dpu_kms_is_suspend_state and suspend_state to this patch Reviewed-by: Sean Paul Signed-off-by: Bruce Wang 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 d4530d60767b..ac604055a824 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -815,35 +815,6 @@ static void _dpu_crtc_vblank_enable_no_lock( } } -/** - * _dpu_crtc_set_suspend - notify crtc of suspend enable/disable - * @crtc: Pointer to drm crtc object - * @enable: true to enable suspend, false to indicate resume - */ -static void _dpu_crtc_set_suspend(struct drm_crtc *crtc, bool enable) -{ - struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); - - DRM_DEBUG_KMS("crtc%d suspend = %d\n", crtc->base.id, enable); - - mutex_lock(&dpu_crtc->crtc_lock); - - /* - * If the vblank is enabled, release a power reference on suspend - * and take it back during resume (if it is still enabled). - */ - trace_dpu_crtc_set_suspend(DRMID(&dpu_crtc->base), enable, dpu_crtc); - if (dpu_crtc->suspend == enable) - DPU_DEBUG("crtc%d suspend already set to %d, ignoring update\n", - crtc->base.id, enable); - else if (dpu_crtc->enabled && dpu_crtc->vblank_requested) { - _dpu_crtc_vblank_enable_no_lock(dpu_crtc, !enable); - } - - dpu_crtc->suspend = enable; - mutex_unlock(&dpu_crtc->crtc_lock); -} - /** * dpu_crtc_duplicate_state - state duplicate hook * @crtc: Pointer to drm crtc structure @@ -951,9 +922,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc) DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); - if (dpu_kms_is_suspend_state(crtc->dev)) - _dpu_crtc_set_suspend(crtc, true); - /* Disable/save vblank irq handling */ drm_crtc_vblank_off(crtc); @@ -966,8 +934,7 @@ static void dpu_crtc_disable(struct drm_crtc *crtc) atomic_read(&dpu_crtc->frame_pending)); trace_dpu_crtc_disable(DRMID(crtc), false, dpu_crtc); - if (dpu_crtc->enabled && !dpu_crtc->suspend && - dpu_crtc->vblank_requested) { + if (dpu_crtc->enabled && dpu_crtc->vblank_requested) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, false); } dpu_crtc->enabled = false; @@ -1033,8 +1000,7 @@ static void dpu_crtc_enable(struct drm_crtc *crtc, mutex_lock(&dpu_crtc->crtc_lock); trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc); - if (!dpu_crtc->enabled && !dpu_crtc->suspend && - dpu_crtc->vblank_requested) { + if (!dpu_crtc->enabled && dpu_crtc->vblank_requested) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, true); } dpu_crtc->enabled = true; @@ -1289,17 +1255,11 @@ end: int dpu_crtc_vblank(struct drm_crtc *crtc, bool en) { - struct dpu_crtc *dpu_crtc; - - if (!crtc) { - DPU_ERROR("invalid crtc\n"); - return -EINVAL; - } - dpu_crtc = to_dpu_crtc(crtc); + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); mutex_lock(&dpu_crtc->crtc_lock); trace_dpu_crtc_vblank(DRMID(&dpu_crtc->base), en, dpu_crtc); - if (dpu_crtc->enabled && !dpu_crtc->suspend) { + if (dpu_crtc->enabled) { _dpu_crtc_vblank_enable_no_lock(dpu_crtc, en); } dpu_crtc->vblank_requested = en; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h index 3723b4830335..7dc181aabb4d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h @@ -133,7 +133,6 @@ struct dpu_crtc_frame_event { * @play_count : frame count between crtc enable and disable * @vblank_cb_time : ktime at vblank count reset * @vblank_requested : whether the user has requested vblank events - * @suspend : whether or not a suspend operation is in progress * @enabled : whether the DPU CRTC is currently enabled. updated in the * commit-thread, not state-swap time which is earlier, so * safe to make decisions on during VBLANK on/off work @@ -169,7 +168,6 @@ struct dpu_crtc { u64 play_count; ktime_t vblank_cb_time; bool vblank_requested; - bool suspend; bool enabled; struct list_head feature_list; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index 1991cbe424a3..2a3625eef6d3 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -135,9 +135,6 @@ struct dpu_kms { struct dpu_core_perf perf; - /* saved atomic state during system suspend */ - struct drm_atomic_state *suspend_state; - struct dpu_rm rm; bool rm_init; @@ -162,19 +159,6 @@ struct vsync_info { #define ddev_to_msm_kms(D) ((D) && (D)->dev_private ? \ ((struct msm_drm_private *)((D)->dev_private))->kms : NULL) -/** - * dpu_kms_is_suspend_state - whether or not the system is pm suspended - * @dev: Pointer to drm device - * Return: Suspend status - */ -static inline bool dpu_kms_is_suspend_state(struct drm_device *dev) -{ - if (!ddev_to_msm_kms(dev)) - return false; - - return to_dpu_kms(ddev_to_msm_kms(dev))->suspend_state != NULL; -} - /** * Debugfs functions - extra helper functions for debugfs support * diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h index 636b31b0d311..0c122e173892 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h @@ -749,7 +749,6 @@ TRACE_EVENT(dpu_crtc_vblank_enable, __field( uint32_t, enc_id ) __field( bool, enable ) __field( bool, enabled ) - __field( bool, suspend ) __field( bool, vblank_requested ) ), TP_fast_assign( @@ -757,15 +756,12 @@ TRACE_EVENT(dpu_crtc_vblank_enable, __entry->enc_id = enc_id; __entry->enable = enable; __entry->enabled = crtc->enabled; - __entry->suspend = crtc->suspend; __entry->vblank_requested = crtc->vblank_requested; ), - TP_printk("id:%u encoder:%u enable:%s state{enabled:%s suspend:%s " - "vblank_req:%s}", + TP_printk("id:%u encoder:%u enable:%s state{enabled:%s vblank_req:%s}", __entry->drm_id, __entry->enc_id, __entry->enable ? "true" : "false", __entry->enabled ? "true" : "false", - __entry->suspend ? "true" : "false", __entry->vblank_requested ? "true" : "false") ); @@ -776,26 +772,19 @@ DECLARE_EVENT_CLASS(dpu_crtc_enable_template, __field( uint32_t, drm_id ) __field( bool, enable ) __field( bool, enabled ) - __field( bool, suspend ) __field( bool, vblank_requested ) ), TP_fast_assign( __entry->drm_id = drm_id; __entry->enable = enable; __entry->enabled = crtc->enabled; - __entry->suspend = crtc->suspend; __entry->vblank_requested = crtc->vblank_requested; ), - TP_printk("id:%u enable:%s state{enabled:%s suspend:%s vblank_req:%s}", + TP_printk("id:%u enable:%s state{enabled:%s vblank_req:%s}", __entry->drm_id, __entry->enable ? "true" : "false", __entry->enabled ? "true" : "false", - __entry->suspend ? "true" : "false", __entry->vblank_requested ? "true" : "false") ); -DEFINE_EVENT(dpu_crtc_enable_template, dpu_crtc_set_suspend, - TP_PROTO(uint32_t drm_id, bool enable, struct dpu_crtc *crtc), - TP_ARGS(drm_id, enable, crtc) -); DEFINE_EVENT(dpu_crtc_enable_template, dpu_crtc_enable, TP_PROTO(uint32_t drm_id, bool enable, struct dpu_crtc *crtc), TP_ARGS(drm_id, enable, crtc)