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

Jeykumar Sankaran
2018-10-09T04:27:26Z

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__ */
--
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