Remove all unused dpu_hw_blk features and functions: - dpu_hw_blk_get()/_put() and respective refcounting, - global list of all dpu_hw_blk instances, - dpu_hw_blk_ops and empty implementation inside each hw_blk subdriver.
This leaves dpu_hw_blk as a placeholder with just type and index.
Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.c | 104 +----------------- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.h | 19 +--- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c | 4 +- .../gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.c | 4 +- .../gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c | 4 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c | 4 +- 10 files changed, 10 insertions(+), 145 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.c index 819b26e660b9..abad043f35f5 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.c @@ -11,33 +11,16 @@ #include "dpu_hw_mdss.h" #include "dpu_hw_blk.h"
-/* Serialization lock for dpu_hw_blk_list */ -static DEFINE_MUTEX(dpu_hw_blk_lock); - -/* List of all hw block objects */ -static LIST_HEAD(dpu_hw_blk_list); - /** * dpu_hw_blk_init - initialize hw block object * @hw_blk: pointer to hw block object * @type: hw block type - enum dpu_hw_blk_type * @id: instance id of the hw block - * @ops: Pointer to block operations */ -void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id, - struct dpu_hw_blk_ops *ops) +void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id) { - INIT_LIST_HEAD(&hw_blk->list); hw_blk->type = type; hw_blk->id = id; - atomic_set(&hw_blk->refcount, 0); - - if (ops) - hw_blk->ops = *ops; - - mutex_lock(&dpu_hw_blk_lock); - list_add(&hw_blk->list, &dpu_hw_blk_list); - mutex_unlock(&dpu_hw_blk_lock); }
/** @@ -51,89 +34,4 @@ void dpu_hw_blk_destroy(struct dpu_hw_blk *hw_blk) pr_err("invalid parameters\n"); return; } - - if (atomic_read(&hw_blk->refcount)) - pr_err("hw_blk:%d.%d invalid refcount\n", hw_blk->type, - hw_blk->id); - - mutex_lock(&dpu_hw_blk_lock); - list_del(&hw_blk->list); - mutex_unlock(&dpu_hw_blk_lock); -} - -/** - * dpu_hw_blk_get - get hw_blk from free pool - * @hw_blk: if specified, increment reference count only - * @type: if hw_blk is not specified, allocate the next available of this type - * @id: if specified (>= 0), allocate the given instance of the above type - * return: pointer to hw block object - */ -struct dpu_hw_blk *dpu_hw_blk_get(struct dpu_hw_blk *hw_blk, u32 type, int id) -{ - struct dpu_hw_blk *curr; - int rc, refcount; - - if (!hw_blk) { - mutex_lock(&dpu_hw_blk_lock); - list_for_each_entry(curr, &dpu_hw_blk_list, list) { - if ((curr->type != type) || - (id >= 0 && curr->id != id) || - (id < 0 && - atomic_read(&curr->refcount))) - continue; - - hw_blk = curr; - break; - } - mutex_unlock(&dpu_hw_blk_lock); - } - - if (!hw_blk) { - pr_debug("no hw_blk:%d\n", type); - return NULL; - } - - refcount = atomic_inc_return(&hw_blk->refcount); - - if (refcount == 1 && hw_blk->ops.start) { - rc = hw_blk->ops.start(hw_blk); - if (rc) { - pr_err("failed to start hw_blk:%d rc:%d\n", type, rc); - goto error_start; - } - } - - pr_debug("hw_blk:%d.%d refcount:%d\n", hw_blk->type, - hw_blk->id, refcount); - return hw_blk; - -error_start: - dpu_hw_blk_put(hw_blk); - return ERR_PTR(rc); -} - -/** - * dpu_hw_blk_put - put hw_blk to free pool if decremented refcount is zero - * @hw_blk: hw block to be freed - */ -void dpu_hw_blk_put(struct dpu_hw_blk *hw_blk) -{ - if (!hw_blk) { - pr_err("invalid parameters\n"); - return; - } - - pr_debug("hw_blk:%d.%d refcount:%d\n", hw_blk->type, hw_blk->id, - atomic_read(&hw_blk->refcount)); - - if (!atomic_read(&hw_blk->refcount)) { - pr_err("hw_blk:%d.%d invalid put\n", hw_blk->type, hw_blk->id); - return; - } - - if (atomic_dec_return(&hw_blk->refcount)) - return; - - if (hw_blk->ops.stop) - hw_blk->ops.stop(hw_blk); } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.h index 2bf737f8dd1b..fb3be9a36a50 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_blk.h @@ -7,19 +7,9 @@
#include <linux/types.h> #include <linux/list.h> -#include <linux/atomic.h>
struct dpu_hw_blk;
-/** - * struct dpu_hw_blk_ops - common hardware block operations - * @start: start operation on first get - * @stop: stop operation on last put - */ -struct dpu_hw_blk_ops { - int (*start)(struct dpu_hw_blk *); - void (*stop)(struct dpu_hw_blk *); -};
/** * struct dpu_hw_blk - definition of hardware block object @@ -29,17 +19,10 @@ struct dpu_hw_blk_ops { * @refcount: reference/usage count */ struct dpu_hw_blk { - struct list_head list; u32 type; int id; - atomic_t refcount; - struct dpu_hw_blk_ops ops; };
-void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id, - struct dpu_hw_blk_ops *ops); +void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id); void dpu_hw_blk_destroy(struct dpu_hw_blk *hw_blk); - -struct dpu_hw_blk *dpu_hw_blk_get(struct dpu_hw_blk *hw_blk, u32 type, int id); -void dpu_hw_blk_put(struct dpu_hw_blk *hw_blk); #endif /*_DPU_HW_BLK_H */ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c index 2d4645e01ebf..04a2c4b9a357 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -589,8 +589,6 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops, ops->set_active_pipes = dpu_hw_ctl_set_fetch_pipe_active; };
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -615,7 +613,7 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx, c->mixer_count = m->mixer_count; c->mixer_hw_caps = m->mixer;
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_CTL, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_CTL, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c index e42f901a7de5..d2f1045a736a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dspp.c @@ -85,8 +85,6 @@ static const struct dpu_dspp_cfg *_dspp_offset(enum dpu_dspp dspp, return ERR_PTR(-EINVAL); }
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -112,7 +110,7 @@ struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx, c->cap = cfg; _setup_dspp_ops(c, c->cap->features);
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_DSPP, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_DSPP, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c index 1599e3f49a4f..6ffe97601716 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c @@ -299,8 +299,6 @@ static void _setup_intf_ops(struct dpu_hw_intf_ops *ops, ops->bind_pingpong_blk = dpu_hw_intf_bind_pingpong_blk; }
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -327,7 +325,7 @@ struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx, c->mdss = m; _setup_intf_ops(&c->ops, c->cap->features);
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_INTF, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_INTF, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c index 6ac0b5a0e057..554bb881de3a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_lm.c @@ -160,8 +160,6 @@ static void _setup_mixer_ops(const struct dpu_mdss_cfg *m, ops->setup_border_color = dpu_hw_lm_setup_border_color; }
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -184,7 +182,7 @@ struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx, c->cap = cfg; _setup_mixer_ops(m, &c->ops, c->cap->features);
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.c index 720813e5a8ae..863229dd0140 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_merge3d.c @@ -58,8 +58,6 @@ static void _setup_merge_3d_ops(struct dpu_hw_merge_3d *c, c->ops.setup_3d_mode = dpu_hw_merge_3d_setup_3d_mode; };
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_merge_3d *dpu_hw_merge_3d_init(enum dpu_merge_3d idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -81,7 +79,7 @@ struct dpu_hw_merge_3d *dpu_hw_merge_3d_init(enum dpu_merge_3d idx, c->caps = cfg; _setup_merge_3d_ops(c, c->caps->features);
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_MERGE_3D, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_MERGE_3D, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c index 245a7a62b5c6..334d5b28f533 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c @@ -261,8 +261,6 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c, c->ops.setup_dither = dpu_hw_pp_setup_dither; };
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -284,7 +282,7 @@ struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx, c->caps = cfg; _setup_pingpong_ops(c, c->caps->features);
- dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx, &dpu_hw_ops); + dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx);
return c; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c index 34d81aa16041..ceb2488ea270 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.c @@ -706,8 +706,6 @@ static const struct dpu_sspp_cfg *_sspp_offset(enum dpu_sspp sspp, return ERR_PTR(-ENOMEM); }
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx, void __iomem *addr, struct dpu_mdss_cfg *catalog, bool is_virtual_pipe) @@ -735,7 +733,7 @@ struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx, hw_pipe->cap = cfg; _setup_layer_ops(hw_pipe, hw_pipe->cap->features);
- dpu_hw_blk_init(&hw_pipe->base, DPU_HW_BLK_SSPP, idx, &dpu_hw_ops); + dpu_hw_blk_init(&hw_pipe->base, DPU_HW_BLK_SSPP, idx);
return hw_pipe; } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c index 01b76766a9a8..5d2c33ec1de7 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_top.c @@ -295,8 +295,6 @@ static const struct dpu_mdp_cfg *_top_offset(enum dpu_mdp mdp, return ERR_PTR(-EINVAL); }
-static struct dpu_hw_blk_ops dpu_hw_ops; - struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx, void __iomem *addr, const struct dpu_mdss_cfg *m) @@ -324,7 +322,7 @@ struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx, mdp->caps = cfg; _setup_mdp_ops(&mdp->ops, mdp->caps->features);
- dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx, &dpu_hw_ops); + dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx);
return mdp; }