[PATCH 09/25] drm/msm/dpu: make RM iterator static

[Jeykumar Sankaran <jsanka-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>]

HW blocks reserved for a display are stored in crtc state.
No one outside RM is interested in using these API's for
HW block list iterations.

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 37 ++++++++++++++-------------
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h | 46 ----------------------------------
 2 files changed, 20 insertions(+), 63 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index 619b596..24fc1c7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -49,12 +49,26 @@ struct dpu_rm_hw_blk {
 	struct dpu_hw_blk *hw;
 };
 
+/**
+ * struct dpu_rm_hw_iter - iterator for use with dpu_rm
+ * @hw: dpu_hw object requested, or NULL on failure
+ * @blk: dpu_rm internal block representation. Clients ignore. Used as iterator.
+ * @enc_id: DRM ID of Encoder client wishes to search for, or 0 for Any Encoder
+ * @type: Hardware Block Type client wishes to search for.
+ */
+struct dpu_rm_hw_iter {
+	void *hw;
+	struct dpu_rm_hw_blk *blk;
+	uint32_t enc_id;
+	enum dpu_hw_blk_type type;
+};
+
 struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm)
 {
 	return rm->hw_mdp;
 }
 
-void dpu_rm_init_hw_iter(
+static void _dpu_rm_init_hw_iter(
 		struct dpu_rm_hw_iter *iter,
 		uint32_t enc_id,
 		enum dpu_hw_blk_type type)
@@ -97,17 +111,6 @@ static bool _dpu_rm_get_hw_locked(struct dpu_rm *rm, struct dpu_rm_hw_iter *i)
 	return false;
 }
 
-bool dpu_rm_get_hw(struct dpu_rm *rm, struct dpu_rm_hw_iter *i)
-{
-	bool ret;
-
-	mutex_lock(&rm->rm_lock);
-	ret = _dpu_rm_get_hw_locked(rm, i);
-	mutex_unlock(&rm->rm_lock);
-
-	return ret;
-}
-
 static void _dpu_rm_hw_destroy(enum dpu_hw_blk_type type, void *hw)
 {
 	switch (type) {
@@ -365,7 +368,7 @@ static bool _dpu_rm_check_lm_and_get_connected_blks(
 		return false;
 	}
 
-	dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_PINGPONG);
+	_dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_PINGPONG);
 	while (_dpu_rm_get_hw_locked(rm, &iter)) {
 		if (iter.blk->id == lm_cfg->pingpong) {
 			*pp = iter.blk;
@@ -404,7 +407,7 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm, uint32_t enc_id,
 	}
 
 	/* Find a primary mixer */
-	dpu_rm_init_hw_iter(&iter_i, 0, DPU_HW_BLK_LM);
+	_dpu_rm_init_hw_iter(&iter_i, 0, DPU_HW_BLK_LM);
 	while (lm_count != reqs->topology.num_lm &&
 			_dpu_rm_get_hw_locked(rm, &iter_i)) {
 		memset(&lm, 0, sizeof(lm));
@@ -421,7 +424,7 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm, uint32_t enc_id,
 		++lm_count;
 
 		/* Valid primary mixer found, find matching peers */
-		dpu_rm_init_hw_iter(&iter_j, 0, DPU_HW_BLK_LM);
+		_dpu_rm_init_hw_iter(&iter_j, 0, DPU_HW_BLK_LM);
 
 		while (lm_count != reqs->topology.num_lm &&
 				_dpu_rm_get_hw_locked(rm, &iter_j)) {
@@ -480,7 +483,7 @@ static int _dpu_rm_reserve_ctls(
 
 	needs_split_display = _dpu_rm_needs_split_display(top);
 
-	dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_CTL);
+	_dpu_rm_init_hw_iter(&iter, 0, DPU_HW_BLK_CTL);
 	while (_dpu_rm_get_hw_locked(rm, &iter)) {
 		const struct dpu_hw_ctl *ctl = to_dpu_hw_ctl(iter.blk->hw);
 		unsigned long features = ctl->caps->features;
@@ -528,7 +531,7 @@ static struct dpu_rm_hw_blk *_dpu_rm_reserve_intf(
 	struct dpu_rm_hw_iter iter;
 
 	/* Find the block entry in the rm, and note the reservation */
-	dpu_rm_init_hw_iter(&iter, 0, type);
+	_dpu_rm_init_hw_iter(&iter, 0, type);
 	while (_dpu_rm_get_hw_locked(rm, &iter)) {
 		if (iter.blk->id != id)
 			continue;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index e48e8f2..c7e3b2b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -36,26 +36,6 @@ struct dpu_rm {
 };
 
 /**
- *  struct dpu_rm_hw_blk - resource manager internal structure
- *	forward declaration for single iterator definition without void pointer
- */
-struct dpu_rm_hw_blk;
-
-/**
- * struct dpu_rm_hw_iter - iterator for use with dpu_rm
- * @hw: dpu_hw object requested, or NULL on failure
- * @blk: dpu_rm internal block representation. Clients ignore. Used as iterator.
- * @enc_id: DRM ID of Encoder client wishes to search for, or 0 for Any Encoder
- * @type: Hardware Block Type client wishes to search for.
- */
-struct dpu_rm_hw_iter {
-	void *hw;
-	struct dpu_rm_hw_blk *blk;
-	uint32_t enc_id;
-	enum dpu_hw_blk_type type;
-};
-
-/**
  * dpu_rm_init - Read hardware catalog and create reservation tracking objects
  *	for all HW blocks.
  * @rm: DPU Resource Manager handle
@@ -110,30 +90,4 @@ int dpu_rm_reserve(struct dpu_rm *rm,
  * @Return: Pointer to hw block or NULL
  */
 struct dpu_hw_mdp *dpu_rm_get_mdp(struct dpu_rm *rm);
-
-/**
- * dpu_rm_init_hw_iter - setup given iterator for new iteration over hw list
- *	using dpu_rm_get_hw
- * @iter: iter object to initialize
- * @enc_id: DRM ID of Encoder client wishes to search for, or 0 for Any Encoder
- * @type: Hardware Block Type client wishes to search for.
- */
-void dpu_rm_init_hw_iter(
-		struct dpu_rm_hw_iter *iter,
-		uint32_t enc_id,
-		enum dpu_hw_blk_type type);
-/**
- * dpu_rm_get_hw - retrieve reserved hw object given encoder and hw type
- *	Meant to do a single pass through the hardware list to iteratively
- *	retrieve hardware blocks of a given type for a given encoder.
- *	Initialize an iterator object.
- *	Set hw block type of interest. Set encoder id of interest, 0 for any.
- *	Function returns first hw of type for that encoder.
- *	Subsequent calls will return the next reserved hw of that type in-order.
- *	Iterator HW pointer will be null on failure to find hw.
- * @rm: DPU Resource Manager handle
- * @iter: iterator object
- * @Return: true on match found, false on no match found
- */
-bool dpu_rm_get_hw(struct dpu_rm *rm, struct dpu_rm_hw_iter *iter);
 #endif /* __DPU_RM_H__ */
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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