[DPU PATCH v2 09/14] drm/msm/dpu: move hw resource tracking to crtc state

[Sravanthi Kollukuduru <skolluku-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>]

From: Jeykumar Sankaran <jsanka@codeaurora.org>

Prep changes for state based resource management.

Moves all the hw block tracking for the crtc to the state
object.

changes in v2:
     - none

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 76 +++++++++++++++++---------------
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 26 +++++------
 2 files changed, 53 insertions(+), 49 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 426e2ad..bed67cd 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -142,9 +142,9 @@ static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc)
 	crtc_state = to_dpu_crtc_state(crtc->state);
 
 	lm_horiz_position = 0;
-	for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
+	for (lm_idx = 0; lm_idx < crtc_state->num_mixers; lm_idx++) {
 		const struct dpu_rect *lm_roi = &crtc_state->lm_bounds[lm_idx];
-		struct dpu_hw_mixer *hw_lm = dpu_crtc->mixers[lm_idx].hw_lm;
+		struct dpu_hw_mixer *hw_lm = crtc_state->mixers[lm_idx].hw_lm;
 		struct dpu_hw_mixer_cfg cfg;
 
 		if (dpu_kms_rect_is_null(lm_roi))
@@ -237,7 +237,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
 			format->base.pixel_format, fb ? fb->modifier : 0);
 
 		/* blend config update */
-		for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
+		for (lm_idx = 0; lm_idx < cstate->num_mixers; lm_idx++) {
 			_dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate);
 
 			mixer[lm_idx].flush_mask |= flush_mask;
@@ -260,7 +260,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
 static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
 {
 	struct dpu_crtc *dpu_crtc;
-	struct dpu_crtc_state *dpu_crtc_state;
+	struct dpu_crtc_state *cstate;
 	struct dpu_crtc_mixer *mixer;
 	struct dpu_hw_ctl *ctl;
 	struct dpu_hw_mixer *lm;
@@ -271,17 +271,17 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
 		return;
 
 	dpu_crtc = to_dpu_crtc(crtc);
-	dpu_crtc_state = to_dpu_crtc_state(crtc->state);
-	mixer = dpu_crtc->mixers;
+	cstate = to_dpu_crtc_state(crtc->state);
+	mixer = cstate->mixers;
 
 	DPU_DEBUG("%s\n", dpu_crtc->name);
 
-	if (dpu_crtc->num_mixers > CRTC_DUAL_MIXERS) {
-		DPU_ERROR("invalid number mixers: %d\n", dpu_crtc->num_mixers);
+	if (cstate->num_mixers > CRTC_DUAL_MIXERS) {
+		DPU_ERROR("invalid number mixers: %d\n", cstate->num_mixers);
 		return;
 	}
 
-	for (i = 0; i < dpu_crtc->num_mixers; i++) {
+	for (i = 0; i < cstate->num_mixers; i++) {
 		if (!mixer[i].hw_lm || !mixer[i].hw_ctl) {
 			DPU_ERROR("invalid lm or ctl assigned to mixer\n");
 			return;
@@ -298,7 +298,7 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
 
 	_dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer);
 
-	for (i = 0; i < dpu_crtc->num_mixers; i++) {
+	for (i = 0; i < cstate->num_mixers; i++) {
 		ctl = mixer[i].hw_ctl;
 		lm = mixer[i].hw_lm;
 
@@ -583,7 +583,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
 		struct drm_crtc *crtc,
 		struct drm_encoder *enc)
 {
-	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
 	struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
 	struct dpu_rm *rm = &dpu_kms->rm;
 	struct dpu_crtc_mixer *mixer;
@@ -595,8 +595,8 @@ static void _dpu_crtc_setup_mixer_for_encoder(
 	dpu_rm_init_hw_iter(&ctl_iter, enc->base.id, DPU_HW_BLK_CTL);
 
 	/* Set up all the mixers and ctls reserved by this encoder */
-	for (i = dpu_crtc->num_mixers; i < ARRAY_SIZE(dpu_crtc->mixers); i++) {
-		mixer = &dpu_crtc->mixers[i];
+	for (i = cstate->num_mixers; i < ARRAY_SIZE(cstate->mixers); i++) {
+		mixer = &cstate->mixers[i];
 
 		if (!dpu_rm_get_hw(rm, &lm_iter))
 			break;
@@ -621,7 +621,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
 
 		mixer->encoder = enc;
 
-		dpu_crtc->num_mixers++;
+		cstate->num_mixers++;
 		DPU_DEBUG("setup mixer %d: lm %d\n",
 				i, mixer->hw_lm->idx - LM_0);
 		DPU_DEBUG("setup mixer %d: ctl %d\n",
@@ -632,11 +632,11 @@ static void _dpu_crtc_setup_mixer_for_encoder(
 static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc)
 {
 	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
+	struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
 	struct drm_encoder *enc;
 
-	dpu_crtc->num_mixers = 0;
-	dpu_crtc->mixers_swapped = false;
-	memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
+	cstate->num_mixers = 0;
+	memset(cstate->mixers, 0, sizeof(cstate->mixers));
 
 	mutex_lock(&dpu_crtc->crtc_lock);
 	/* Check for mixers on all encoders attached to this crtc */
@@ -670,7 +670,7 @@ static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
 	adj_mode = &state->adjusted_mode;
 	crtc_split_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, adj_mode);
 
-	for (i = 0; i < dpu_crtc->num_mixers; i++) {
+	for (i = 0; i < cstate->num_mixers; i++) {
 		cstate->lm_bounds[i].x = crtc_split_width * i;
 		cstate->lm_bounds[i].y = 0;
 		cstate->lm_bounds[i].w = crtc_split_width;
@@ -688,6 +688,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
 		struct drm_crtc_state *old_state)
 {
 	struct dpu_crtc *dpu_crtc;
+	struct dpu_crtc_state *cstate;
 	struct drm_encoder *encoder;
 	struct drm_device *dev;
 	unsigned long flags;
@@ -707,10 +708,11 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
 	DPU_DEBUG("crtc%d\n", crtc->base.id);
 
 	dpu_crtc = to_dpu_crtc(crtc);
+	cstate = to_dpu_crtc_state(crtc->state);
 	dev = crtc->dev;
 	smmu_state = &dpu_crtc->smmu_state;
 
-	if (!dpu_crtc->num_mixers) {
+	if (!cstate->num_mixers) {
 		_dpu_crtc_setup_mixers(crtc);
 		_dpu_crtc_setup_lm_bounds(crtc, crtc->state);
 	}
@@ -737,7 +739,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
 	 * it means we are trying to flush a CRTC whose state is disabled:
 	 * nothing else needs to be done.
 	 */
-	if (unlikely(!dpu_crtc->num_mixers))
+	if (unlikely(!cstate->num_mixers))
 		return;
 
 	_dpu_crtc_blend_setup(crtc);
@@ -801,7 +803,7 @@ static void dpu_crtc_atomic_flush(struct drm_crtc *crtc,
 	 * it means we are trying to flush a CRTC whose state is disabled:
 	 * nothing else needs to be done.
 	 */
-	if (unlikely(!dpu_crtc->num_mixers))
+	if (unlikely(!cstate->num_mixers))
 		return;
 
 	/*
@@ -918,7 +920,7 @@ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)
 	 * it means we are trying to start a CRTC whose state is disabled:
 	 * nothing else needs to be done.
 	 */
-	if (unlikely(!dpu_crtc->num_mixers))
+	if (unlikely(!cstate->num_mixers))
 		return;
 
 	DPU_ATRACE_BEGIN("crtc_commit");
@@ -1157,6 +1159,7 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
 	struct dpu_crtc *dpu_crtc;
 	struct drm_encoder *encoder;
 	struct dpu_crtc_mixer *m;
+	struct dpu_crtc_state *cstate;
 	u32 i, misr_status;
 
 	if (!crtc) {
@@ -1179,8 +1182,8 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
 			dpu_encoder_virt_restore(encoder);
 		}
 
-		for (i = 0; i < dpu_crtc->num_mixers; ++i) {
-			m = &dpu_crtc->mixers[i];
+		for (i = 0; i < cstate->num_mixers; ++i) {
+			m = &cstate->mixers[i];
 			if (!m->hw_lm || !m->hw_lm->ops.setup_misr ||
 					!dpu_crtc->misr_enable)
 				continue;
@@ -1190,8 +1193,8 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
 		}
 		break;
 	case DPU_POWER_EVENT_PRE_DISABLE:
-		for (i = 0; i < dpu_crtc->num_mixers; ++i) {
-			m = &dpu_crtc->mixers[i];
+		for (i = 0; i < cstate->num_mixers; ++i) {
+			m = &cstate->mixers[i];
 			if (!m->hw_lm || !m->hw_lm->ops.collect_misr ||
 					!dpu_crtc->misr_enable)
 				continue;
@@ -1287,9 +1290,8 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)
 				dpu_crtc->power_event);
 
 
-	memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
-	dpu_crtc->num_mixers = 0;
-	dpu_crtc->mixers_swapped = false;
+	memset(cstate->mixers, 0, sizeof(cstate->mixers));
+	cstate->num_mixers = 0;
 
 	/* disable clk & bw control until clk & bw properties are set */
 	cstate->bw_control = false;
@@ -1654,8 +1656,8 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
 
 	seq_puts(s, "\n");
 
-	for (i = 0; i < dpu_crtc->num_mixers; ++i) {
-		m = &dpu_crtc->mixers[i];
+	for (i = 0; i < cstate->num_mixers; ++i) {
+		m = &cstate->mixers[i];
 		if (!m->hw_lm)
 			seq_printf(s, "\tmixer[%d] has no lm\n", i);
 		else if (!m->hw_ctl)
@@ -1748,6 +1750,7 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
 		const char __user *user_buf, size_t count, loff_t *ppos)
 {
 	struct dpu_crtc *dpu_crtc;
+	struct dpu_crtc_state *cstate;
 	struct dpu_crtc_mixer *m;
 	int i = 0, rc;
 	char buf[MISR_BUFF_SIZE + 1];
@@ -1758,6 +1761,7 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
 		return -EINVAL;
 
 	dpu_crtc = file->private_data;
+	cstate = to_dpu_crtc_state(dpu_crtc->base.state);
 	buff_copy = min_t(size_t, count, MISR_BUFF_SIZE);
 	if (copy_from_user(buf, user_buf, buff_copy)) {
 		DPU_ERROR("buffer copy failed\n");
@@ -1776,9 +1780,9 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
 	mutex_lock(&dpu_crtc->crtc_lock);
 	dpu_crtc->misr_enable = enable;
 	dpu_crtc->misr_frame_count = frame_count;
-	for (i = 0; i < dpu_crtc->num_mixers; ++i) {
+	for (i = 0; i < cstate->num_mixers; ++i) {
 		dpu_crtc->misr_data[i] = 0;
-		m = &dpu_crtc->mixers[i];
+		m = &cstate->mixers[i];
 		if (!m->hw_lm || !m->hw_lm->ops.setup_misr)
 			continue;
 
@@ -1794,6 +1798,7 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
 		char __user *user_buff, size_t count, loff_t *ppos)
 {
 	struct dpu_crtc *dpu_crtc;
+	struct dpu_crtc_state *cstate;
 	struct dpu_crtc_mixer *m;
 	int i = 0, rc;
 	u32 misr_status;
@@ -1807,6 +1812,7 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
 		return -EINVAL;
 
 	dpu_crtc = file->private_data;
+	cstate = to_dpu_crtc_state(dpu_crtc->base.state);
 	rc = _dpu_crtc_power_enable(dpu_crtc, true);
 	if (rc)
 		return rc;
@@ -1818,8 +1824,8 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
 		goto buff_check;
 	}
 
-	for (i = 0; i < dpu_crtc->num_mixers; ++i) {
-		m = &dpu_crtc->mixers[i];
+	for (i = 0; i < cstate->num_mixers; ++i) {
+		m = &cstate->mixers[i];
 		if (!m->hw_lm || !m->hw_lm->ops.collect_misr)
 			continue;
 
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 916615d..e7cc1ef 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -138,11 +138,6 @@ struct dpu_crtc_event {
  * struct dpu_crtc - virtualized CRTC data structure
  * @base          : Base drm crtc structure
  * @name          : ASCII description of this crtc
- * @num_ctls      : Number of ctl paths in use
- * @num_mixers    : Number of mixers in use
- * @mixers_swapped: Whether the mixers have been swapped for left/right update
- *                  especially in the case of DSC Merge.
- * @mixers        : List of active mixers
  * @event         : Pointer to last received drm vblank event. If there is a
  *                  pending vblank event, this will be non-null.
  * @vsync_count   : Running count of received vsync events
@@ -186,12 +181,6 @@ struct dpu_crtc {
 	struct drm_crtc base;
 	char name[DPU_CRTC_NAME_SIZE];
 
-	/* HW Resources reserved for the crtc */
-	u32 num_ctls;
-	u32 num_mixers;
-	bool mixers_swapped;
-	struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
-
 	struct drm_pending_vblank_event *event;
 	u32 vsync_count;
 
@@ -250,6 +239,10 @@ struct dpu_crtc {
  * @property_values: Current crtc property values
  * @input_fence_timeout_ns : Cached input fence timeout, in ns
  * @new_perf: new performance state being requested
+ * @num_mixers    : Number of mixers in use
+ * @mixers        : List of active mixers
+ * @num_ctls      : Number of ctl paths in use
+ * @hw_ctls       : List of activel ctl paths
  */
 struct dpu_crtc_state {
 	struct drm_crtc_state base;
@@ -258,12 +251,17 @@ struct dpu_crtc_state {
 	int num_connectors;
 	bool bw_control;
 	bool bw_split_vote;
-
 	struct dpu_rect lm_bounds[CRTC_DUAL_MIXERS];
 
 	uint64_t input_fence_timeout_ns;
-
 	struct dpu_core_perf_params new_perf;
+
+	/* HW Resources reserved for the crtc */
+	u32 num_mixers;
+	struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
+
+	u32 num_ctls;
+	struct dpu_hw_ctl *hw_ctls[CRTC_DUAL_MIXERS];
 };
 
 #define to_dpu_crtc_state(x) \
@@ -281,7 +279,7 @@ static inline int dpu_crtc_get_mixer_width(struct dpu_crtc *dpu_crtc,
 	if (!dpu_crtc || !cstate || !mode)
 		return 0;
 
-	mixer_width = (dpu_crtc->num_mixers == CRTC_DUAL_MIXERS ?
+	mixer_width = (cstate->num_mixers == CRTC_DUAL_MIXERS ?
 			mode->hdisplay / CRTC_DUAL_MIXERS : mode->hdisplay);
 
 	return mixer_width;
-- 
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a Linux Foundation Collaborative Project

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