return 0;
}
-/**
- * _dpu_crtc_rp_to_crtc - get crtc from resource pool object
- * @rp: Pointer to resource pool
- * return: Pointer to drm crtc if success; null otherwise
- */
-static struct drm_crtc *_dpu_crtc_rp_to_crtc(struct dpu_crtc_respool *rp)
-{
- if (!rp)
- return NULL;
-
- return container_of(rp, struct dpu_crtc_state, rp)->base.crtc;
-}
-
-/**
- * _dpu_crtc_rp_reclaim - reclaim unused, or all if forced, resources in pool
- * @rp: Pointer to resource pool
- * @force: True to reclaim all resources; otherwise, reclaim only unused ones
- * return: None
- */
-static void _dpu_crtc_rp_reclaim(struct dpu_crtc_respool *rp, bool force)
-{
- struct dpu_crtc_res *res, *next;
- struct drm_crtc *crtc;
-
- crtc = _dpu_crtc_rp_to_crtc(rp);
- if (!crtc) {
- DPU_ERROR("invalid crtc\n");
- return;
- }
-
- DPU_DEBUG("crtc%d.%u %s\n", crtc->base.id, rp->sequence_id,
- force ? "destroy" : "free_unused");
-
- list_for_each_entry_safe(res, next, &rp->res_list, list) {
- if (!force && !(res->flags & DPU_CRTC_RES_FLAG_FREE))
- continue;
- DPU_DEBUG("crtc%d.%u reclaim res:0x%x/0x%llx/%pK/%d\n",
- crtc->base.id, rp->sequence_id,
- res->type, res->tag, res->val,
- atomic_read(&res->refcount));
- list_del(&res->list);
- if (res->ops.put)
- res->ops.put(res->val);
- kfree(res);
- }
-}
-
-/**
- * _dpu_crtc_rp_free_unused - free unused resource in pool
- * @rp: Pointer to resource pool
- * return: none
- */
-static void _dpu_crtc_rp_free_unused(struct dpu_crtc_respool *rp)
-{
- mutex_lock(rp->rp_lock);
- _dpu_crtc_rp_reclaim(rp, false);
- mutex_unlock(rp->rp_lock);
-}
-
-/**
- * _dpu_crtc_rp_destroy - destroy resource pool
- * @rp: Pointer to resource pool
- * return: None
- */
-static void _dpu_crtc_rp_destroy(struct dpu_crtc_respool *rp)
-{
- mutex_lock(rp->rp_lock);
- list_del_init(&rp->rp_list);
- _dpu_crtc_rp_reclaim(rp, true);
- mutex_unlock(rp->rp_lock);
-}
-
-/**
- * _dpu_crtc_hw_blk_get - get callback for hardware block
- * @val: Resource handle
- * @type: Resource type
- * @tag: Search tag for given resource
- * return: Resource handle
- */
-static void *_dpu_crtc_hw_blk_get(void *val, u32 type, u64 tag)
-{
- DPU_DEBUG("res:%d/0x%llx/%pK\n", type, tag, val);
- return dpu_hw_blk_get(val, type, tag);
-}
-
-/**
- * _dpu_crtc_hw_blk_put - put callback for hardware block
- * @val: Resource handle
- * return: None
- */
-static void _dpu_crtc_hw_blk_put(void *val)
-{
- DPU_DEBUG("res://%pK\n", val);
- dpu_hw_blk_put(val);
-}
-
-/**
- * _dpu_crtc_rp_duplicate - duplicate resource pool and reset reference count
- * @rp: Pointer to original resource pool
- * @dup_rp: Pointer to duplicated resource pool
- * return: None
- */
-static void _dpu_crtc_rp_duplicate(struct dpu_crtc_respool *rp,
- struct dpu_crtc_respool *dup_rp)
-{
- struct dpu_crtc_res *res, *dup_res;
- struct drm_crtc *crtc;
-
- if (!rp || !dup_rp || !rp->rp_head) {
- DPU_ERROR("invalid resource pool\n");
- return;
- }
-
- crtc = _dpu_crtc_rp_to_crtc(rp);
- if (!crtc) {
- DPU_ERROR("invalid crtc\n");
- return;
- }
-
- DPU_DEBUG("crtc%d.%u duplicate\n", crtc->base.id, rp->sequence_id);
-
- mutex_lock(rp->rp_lock);
- dup_rp->sequence_id = rp->sequence_id + 1;
- INIT_LIST_HEAD(&dup_rp->res_list);
- dup_rp->ops = rp->ops;
- list_for_each_entry(res, &rp->res_list, list) {
- dup_res = kzalloc(sizeof(struct dpu_crtc_res), GFP_KERNEL);
- if (!dup_res) {
- mutex_unlock(rp->rp_lock);
- return;
- }
- INIT_LIST_HEAD(&dup_res->list);
- atomic_set(&dup_res->refcount, 0);
- dup_res->type = res->type;
- dup_res->tag = res->tag;
- dup_res->val = res->val;
- dup_res->ops = res->ops;
- dup_res->flags = DPU_CRTC_RES_FLAG_FREE;
- DPU_DEBUG("crtc%d.%u dup res:0x%x/0x%llx/%pK/%d\n",
- crtc->base.id, dup_rp->sequence_id,
- dup_res->type, dup_res->tag, dup_res->val,
- atomic_read(&dup_res->refcount));
- list_add_tail(&dup_res->list, &dup_rp->res_list);
- if (dup_res->ops.get)
- dup_res->ops.get(dup_res->val, 0, -1);
- }
-
- dup_rp->rp_lock = rp->rp_lock;
- dup_rp->rp_head = rp->rp_head;
- INIT_LIST_HEAD(&dup_rp->rp_list);
- list_add_tail(&dup_rp->rp_list, rp->rp_head);
- mutex_unlock(rp->rp_lock);
-}
-
-/**
- * _dpu_crtc_rp_reset - reset resource pool after allocation
- * @rp: Pointer to original resource pool
- * @rp_lock: Pointer to serialization resource pool lock
- * @rp_head: Pointer to crtc resource pool head
- * return: None
- */
-static void _dpu_crtc_rp_reset(struct dpu_crtc_respool *rp,
- struct mutex *rp_lock, struct list_head *rp_head)
-{
- if (!rp || !rp_lock || !rp_head) {
- DPU_ERROR("invalid resource pool\n");
- return;
- }
-
- mutex_lock(rp_lock);
- rp->rp_lock = rp_lock;
- rp->rp_head = rp_head;
- INIT_LIST_HEAD(&rp->rp_list);
- rp->sequence_id = 0;
- INIT_LIST_HEAD(&rp->res_list);
- rp->ops.get = _dpu_crtc_hw_blk_get;
- rp->ops.put = _dpu_crtc_hw_blk_put;
- list_add_tail(&rp->rp_list, rp->rp_head);
- mutex_unlock(rp_lock);
-}
-
static void dpu_crtc_destroy(struct drm_crtc *crtc)
{
struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
DPU_DEBUG("crtc%d\n", crtc->base.id);
- _dpu_crtc_rp_destroy(&cstate->rp);
-
__drm_atomic_helper_crtc_destroy_state(state);
kfree(cstate);
/* duplicate base helper */
__drm_atomic_helper_crtc_duplicate_state(crtc, &cstate->base);
- _dpu_crtc_rp_duplicate(&old_cstate->rp, &cstate->rp);
-
return &cstate->base;
}
return;
}
- _dpu_crtc_rp_reset(&cstate->rp, &dpu_crtc->rp_lock,
- &dpu_crtc->rp_head);
-
cstate->base.crtc = crtc;
crtc->state = &cstate->base;
}
}
end:
- _dpu_crtc_rp_free_unused(&cstate->rp);
kfree(pstates);
return rc;
}
{
struct drm_crtc *crtc = (struct drm_crtc *) s->private;
struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
- struct dpu_crtc_res *res;
- struct dpu_crtc_respool *rp;
int i;
seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc));
dpu_crtc->cur_perf.max_per_pipe_ib[i]);
}
- mutex_lock(&dpu_crtc->rp_lock);
- list_for_each_entry(rp, &dpu_crtc->rp_head, rp_list) {
- seq_printf(s, "rp.%d: ", rp->sequence_id);
- list_for_each_entry(res, &rp->res_list, list)
- seq_printf(s, "0x%x/0x%llx/%pK/%d ",
- res->type, res->tag, res->val,
- atomic_read(&res->refcount));
- seq_puts(s, "\n");
- }
- mutex_unlock(&dpu_crtc->rp_lock);
-
return 0;
}
DEFINE_DPU_DEBUGFS_SEQ_FOPS(dpu_crtc_debugfs_state);
spin_lock_init(&dpu_crtc->spin_lock);
atomic_set(&dpu_crtc->frame_pending, 0);
- mutex_init(&dpu_crtc->rp_lock);
- INIT_LIST_HEAD(&dpu_crtc->rp_head);
-
init_completion(&dpu_crtc->frame_done_comp);
INIT_LIST_HEAD(&dpu_crtc->frame_event_list);
* @phandle: Pointer to power handler
* @power_event : registered power event handle
* @cur_perf : current performance committed to clock/bandwidth driver
- * @rp_lock : serialization lock for resource pool
- * @rp_head : list of active resource pool
*/
struct dpu_crtc {
struct drm_crtc base;
struct dpu_core_perf_params cur_perf;
- struct mutex rp_lock;
- struct list_head rp_head;
-
struct dpu_crtc_smmu_state_data smmu_state;
};
#define to_dpu_crtc(x) container_of(x, struct dpu_crtc, base)
/**
- * struct dpu_crtc_res_ops - common operations for crtc resources
- * @get: get given resource
- * @put: put given resource
- */
-struct dpu_crtc_res_ops {
- void *(*get)(void *val, u32 type, u64 tag);
- void (*put)(void *val);
-};
-
-#define DPU_CRTC_RES_FLAG_FREE BIT(0)
-
-/**
- * struct dpu_crtc_res - definition of crtc resources
- * @list: list of crtc resource
- * @type: crtc resource type
- * @tag: unique identifier per type
- * @refcount: reference/usage count
- * @ops: callback operations
- * @val: resource handle associated with type/tag
- * @flags: customization flags
- */
-struct dpu_crtc_res {
- struct list_head list;
- u32 type;
- u64 tag;
- atomic_t refcount;
- struct dpu_crtc_res_ops ops;
- void *val;
- u32 flags;
-};
-
-/**
- * dpu_crtc_respool - crtc resource pool
- * @rp_lock: pointer to serialization lock
- * @rp_head: pointer to head of active resource pools of this crtc
- * @rp_list: list of crtc resource pool
- * @sequence_id: sequence identifier, incremented per state duplication
- * @res_list: list of resource managed by this resource pool
- * @ops: resource operations for parent resource pool
- */
-struct dpu_crtc_respool {
- struct mutex *rp_lock;
- struct list_head *rp_head;
- struct list_head rp_list;
- u32 sequence_id;
- struct list_head res_list;
- struct dpu_crtc_res_ops ops;
-};
-
-/**
* struct dpu_crtc_state - dpu container for atomic crtc state
* @base: Base drm crtc state structure
* @is_ppsplit : Whether current topology requires PPSplit special handling
uint64_t input_fence_timeout_ns;
struct dpu_core_perf_params new_perf;
- struct dpu_crtc_respool rp;
};
#define to_dpu_crtc_state(x) \
projects / platform / kernel / linux-rpi.git / commitdiff