[PATCH v2 05/24] drm/msm: dpu: Handle crtc pm_runtime_resume() directly

Sean Paul
2018-11-16T18:42:15Z

Instead of registering through dpu_power_handle just to get a call on
runtime_resume, call the crtc function directly.

Changes in v2:
- None

Signed-off-by: Sean Paul <seanpaul@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 23 ++++++-----------------
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 10 ++++++----
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++++
drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 8 ++++----
4 files changed, 20 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index e09209d6c469..c55cb751e2b4 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -33,7 +33,6 @@
#include "dpu_plane.h"
#include "dpu_encoder.h"
#include "dpu_vbif.h"
-#include "dpu_power_handle.h"
#include "dpu_core_perf.h"
#include "dpu_trace.h"

@@ -69,8 +68,6 @@ static void dpu_crtc_destroy(struct drm_crtc *crtc)
if (!crtc)
return;

- dpu_crtc->phandle = NULL;
-
drm_crtc_cleanup(crtc);
mutex_destroy(&dpu_crtc->crtc_lock);
kfree(dpu_crtc);
@@ -844,15 +841,17 @@ static struct drm_crtc_state *dpu_crtc_duplicate_state(struct drm_crtc *crtc)
return &cstate->base;
}

-static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
+void dpu_crtc_runtime_resume(struct drm_crtc *crtc)
{
- struct drm_crtc *crtc = arg;
struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
struct drm_encoder *encoder;

mutex_lock(&dpu_crtc->crtc_lock);

- trace_dpu_crtc_handle_power_event(DRMID(crtc), event_type);
+ if (!dpu_crtc->enabled)
+ goto end;
+
+ trace_dpu_crtc_runtime_resume(DRMID(crtc));

/* restore encoder; crtc will be programmed during commit */
drm_for_each_encoder(encoder, crtc->dev) {
@@ -862,6 +861,7 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
dpu_encoder_virt_restore(encoder);
}

+end:
mutex_unlock(&dpu_crtc->crtc_lock);
}

@@ -917,10 +917,6 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)
dpu_encoder_register_frame_event_callback(encoder, NULL, NULL);
}

- if (dpu_crtc->power_event)
- dpu_power_handle_unregister_event(dpu_crtc->phandle,
- dpu_crtc->power_event);
-
memset(cstate->mixers, 0, sizeof(cstate->mixers));
cstate->num_mixers = 0;

@@ -972,11 +968,6 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,

/* Enable/restore vblank irq handling */
drm_crtc_vblank_on(crtc);
-
- dpu_crtc->power_event = dpu_power_handle_register_event(
- dpu_crtc->phandle, DPU_POWER_EVENT_ENABLE,
- dpu_crtc_handle_power_event, crtc, dpu_crtc->name);
-
}

struct plane_state {
@@ -1522,8 +1513,6 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
/* initialize event handling */
spin_lock_init(&dpu_crtc->event_lock);

- dpu_crtc->phandle = &kms->phandle;
-
DPU_DEBUG("%s: successfully initialized crtc\n", dpu_crtc->name);
return crtc;
}
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 4822602402f9..1dca91d1210f 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -151,7 +151,6 @@ struct dpu_crtc_frame_event {
* @event_worker : Event worker queue
* @event_lock : Spinlock around event handling code
* @phandle: Pointer to power handler
- * @power_event : registered power event handle
* @cur_perf : current performance committed to clock/bandwidth driver
*/
struct dpu_crtc {
@@ -187,9 +186,6 @@ struct dpu_crtc {
/* for handling internal event thread */
spinlock_t event_lock;

- struct dpu_power_handle *phandle;
- struct dpu_power_event *power_event;
-
struct dpu_core_perf_params cur_perf;

struct dpu_crtc_smmu_state_data smmu_state;
@@ -333,4 +329,10 @@ static inline bool dpu_crtc_is_enabled(struct drm_crtc *crtc)
return crtc ? crtc->enabled : false;
}

+/**
+ * dpu_crtc_runtime_resume - called by the top-level on pm_runtime_resume
+ * @crtc: CRTC to resume
+ */
+void dpu_crtc_runtime_resume(struct drm_crtc *crtc);
+
#endif /* _DPU_CRTC_H_ */
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index ab8574ab8327..654ea5060e02 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1137,6 +1137,7 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev)
int rc = -1;
struct platform_device *pdev = to_platform_device(dev);
struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
+ struct drm_crtc *crtc;
struct drm_device *ddev;
struct dss_module_power *mp = &dpu_kms->mp;

@@ -1154,6 +1155,9 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev)

dpu_vbif_init_memtypes(dpu_kms);

+ drm_for_each_crtc(crtc, ddev)
+ dpu_crtc_runtime_resume(crtc);
+
rc = dpu_power_resource_enable(&dpu_kms->phandle, true);
if (rc)
DPU_ERROR("resource enable failed: %d\n", rc);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
index 7ab0ba8224f6..328df37d7580 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h
@@ -298,6 +298,10 @@ DEFINE_EVENT(dpu_drm_obj_template, dpu_kms_wait_for_commit_done,
TP_PROTO(uint32_t drm_id),
TP_ARGS(drm_id)
);
+DEFINE_EVENT(dpu_drm_obj_template, dpu_crtc_runtime_resume,
+ TP_PROTO(uint32_t drm_id),
+ TP_ARGS(drm_id)
+);

TRACE_EVENT(dpu_enc_enable,
TP_PROTO(uint32_t drm_id, int hdisplay, int vdisplay),
@@ -518,10 +522,6 @@ DEFINE_EVENT(dpu_id_event_template, dpu_crtc_frame_event_cb,
TP_PROTO(uint32_t drm_id, u32 event),
TP_ARGS(drm_id, event)
);
-DEFINE_EVENT(dpu_id_event_template, dpu_crtc_handle_power_event,
- TP_PROTO(uint32_t drm_id, u32 event),
- TP_ARGS(drm_id, event)
-);
DEFINE_EVENT(dpu_id_event_template, dpu_crtc_frame_event_done,
TP_PROTO(uint32_t drm_id, u32 event),
TP_ARGS(drm_id, event)