dpu_crtc_enable/disable/reset are only being called upon
initialization/destruction of the device and as part of the PM
suspend/resume handling. Since core suspend and resume calls
are guarenteed to not overlap with one another we don't need to
track whether or not we're in a suspended state from inside the crtc.
This patch removes the suspend logic from the crtc, and removes the relevant
tracing from dpu_trace.
Signed-off-by: Bruce Wang <bzw...@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 61 ++---------------------
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 2 -
drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 15 +-----
3 files changed, 7 insertions(+), 71 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index d4530d60767b..31e372554e0c 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
@@ -881,25 +852,14 @@ static struct drm_crtc_state
*dpu_crtc_duplicate_state(struct drm_crtc *crtc)
*/
static void dpu_crtc_reset(struct drm_crtc *crtc)
{
- struct dpu_crtc *dpu_crtc;
struct dpu_crtc_state *cstate;
- if (!crtc) {
- DPU_ERROR("invalid crtc\n");
- return;
- }
-
- /* revert suspend actions, if necessary */
- if (dpu_kms_is_suspend_state(crtc->dev))
- _dpu_crtc_set_suspend(crtc, false);
-
/* remove previous state, if present */
if (crtc->state) {
dpu_crtc_destroy_state(crtc, crtc->state);
- crtc->state = 0;
+ crtc->state = NULL;
}
- dpu_crtc = to_dpu_crtc(crtc);
cstate = kzalloc(sizeof(*cstate), GFP_KERNEL);
if (!cstate) {
DPU_ERROR("failed to allocate state\n");
@@ -951,9 +911,6 @@ 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 +923,7 @@ 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 +989,7 @@ 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 +1244,11 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
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_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)
--
2.19.0.605.g01d371f741-goog
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