With dpu_core_irq being the wrapper around dpu_hw_interrupts, there is little sense in having them separate. Squash them together to remove another layer of abstraction (hw_intr ops).
Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/msm/Makefile | 1 - drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c | 256 ----------------- .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 269 ++++++++++++++---- .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h | 87 ------ 4 files changed, 214 insertions(+), 399 deletions(-) delete mode 100644 drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 2c00aa70b708..a5245e8d0f14 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -51,7 +51,6 @@ msm-y := \ disp/mdp5/mdp5_mixer.o \ disp/mdp5/mdp5_plane.o \ disp/mdp5/mdp5_smp.o \ - disp/dpu1/dpu_core_irq.o \ disp/dpu1/dpu_core_perf.o \ disp/dpu1/dpu_crtc.o \ disp/dpu1/dpu_encoder.o \ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c deleted file mode 100644 index d2457490930b..000000000000 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.c +++ /dev/null @@ -1,256 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. - */ - -#define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ - -#include <linux/debugfs.h> -#include <linux/irqdomain.h> -#include <linux/irq.h> -#include <linux/kthread.h> - -#include "dpu_core_irq.h" -#include "dpu_trace.h" - -/** - * dpu_core_irq_callback_handler - dispatch core interrupts - * @arg: private data of callback handler - * @irq_idx: interrupt index - */ -static void dpu_core_irq_callback_handler(void *arg, int irq_idx) -{ - struct dpu_kms *dpu_kms = arg; - struct dpu_irq *irq_obj = &dpu_kms->irq_obj; - struct dpu_irq_callback *cb; - - VERB("irq_idx=%d\n", irq_idx); - - if (list_empty(&irq_obj->irq_cb_tbl[irq_idx])) - DRM_ERROR("no registered cb, idx:%d\n", irq_idx); - - atomic_inc(&irq_obj->irq_counts[irq_idx]); - - /* - * Perform registered function callback - */ - list_for_each_entry(cb, &irq_obj->irq_cb_tbl[irq_idx], list) - if (cb->func) - cb->func(cb->arg, irq_idx); -} - -u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx, bool clear) -{ - if (!dpu_kms->hw_intr || - !dpu_kms->hw_intr->ops.get_interrupt_status) - return 0; - - if (irq_idx < 0) { - DPU_ERROR("[%pS] invalid irq_idx=%d\n", - __builtin_return_address(0), irq_idx); - return 0; - } - - return dpu_kms->hw_intr->ops.get_interrupt_status(dpu_kms->hw_intr, - irq_idx, clear); -} - -int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *register_irq_cb) -{ - unsigned long irq_flags; - - if (!dpu_kms->irq_obj.irq_cb_tbl) { - DPU_ERROR("invalid params\n"); - return -EINVAL; - } - - if (!register_irq_cb || !register_irq_cb->func) { - DPU_ERROR("invalid irq_cb:%d func:%d\n", - register_irq_cb != NULL, - register_irq_cb ? - register_irq_cb->func != NULL : -1); - return -EINVAL; - } - - if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) { - DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx); - return -EINVAL; - } - - VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); - - irq_flags = dpu_kms->hw_intr->ops.lock(dpu_kms->hw_intr); - trace_dpu_core_irq_register_callback(irq_idx, register_irq_cb); - list_del_init(®ister_irq_cb->list); - list_add_tail(®ister_irq_cb->list, - &dpu_kms->irq_obj.irq_cb_tbl[irq_idx]); - if (list_is_first(®ister_irq_cb->list, - &dpu_kms->irq_obj.irq_cb_tbl[irq_idx])) { - int ret = dpu_kms->hw_intr->ops.enable_irq_locked( - dpu_kms->hw_intr, - irq_idx); - if (ret) - DPU_ERROR("Fail to enable IRQ for irq_idx:%d\n", - irq_idx); - } - dpu_kms->hw_intr->ops.unlock(dpu_kms->hw_intr, irq_flags); - - return 0; -} - -int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *register_irq_cb) -{ - unsigned long irq_flags; - - if (!dpu_kms->irq_obj.irq_cb_tbl) { - DPU_ERROR("invalid params\n"); - return -EINVAL; - } - - if (!register_irq_cb || !register_irq_cb->func) { - DPU_ERROR("invalid irq_cb:%d func:%d\n", - register_irq_cb != NULL, - register_irq_cb ? - register_irq_cb->func != NULL : -1); - return -EINVAL; - } - - if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) { - DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx); - return -EINVAL; - } - - VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); - - irq_flags = dpu_kms->hw_intr->ops.lock(dpu_kms->hw_intr); - trace_dpu_core_irq_unregister_callback(irq_idx, register_irq_cb); - list_del_init(®ister_irq_cb->list); - /* empty callback list but interrupt is still enabled */ - if (list_empty(&dpu_kms->irq_obj.irq_cb_tbl[irq_idx])) { - int ret = dpu_kms->hw_intr->ops.disable_irq_locked( - dpu_kms->hw_intr, - irq_idx); - if (ret) - DPU_ERROR("Fail to disable IRQ for irq_idx:%d\n", - irq_idx); - VERB("irq_idx=%d ret=%d\n", irq_idx, ret); - } - dpu_kms->hw_intr->ops.unlock(dpu_kms->hw_intr, irq_flags); - - return 0; -} - -static void dpu_clear_all_irqs(struct dpu_kms *dpu_kms) -{ - if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.clear_all_irqs) - return; - - dpu_kms->hw_intr->ops.clear_all_irqs(dpu_kms->hw_intr); -} - -static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms) -{ - if (!dpu_kms->hw_intr || !dpu_kms->hw_intr->ops.disable_all_irqs) - return; - - dpu_kms->hw_intr->ops.disable_all_irqs(dpu_kms->hw_intr); -} - -#ifdef CONFIG_DEBUG_FS -static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v) -{ - struct dpu_kms *dpu_kms = s->private; - struct dpu_irq *irq_obj = &dpu_kms->irq_obj; - struct dpu_irq_callback *cb; - unsigned long irq_flags; - int i, irq_count, cb_count; - - if (WARN_ON(!irq_obj->irq_cb_tbl)) - return 0; - - for (i = 0; i < irq_obj->total_irqs; i++) { - irq_flags = dpu_kms->hw_intr->ops.lock(dpu_kms->hw_intr); - cb_count = 0; - irq_count = atomic_read(&irq_obj->irq_counts[i]); - list_for_each_entry(cb, &irq_obj->irq_cb_tbl[i], list) - cb_count++; - dpu_kms->hw_intr->ops.unlock(dpu_kms->hw_intr, irq_flags); - - if (irq_count || cb_count) - seq_printf(s, "idx:%d irq:%d cb:%d\n", - i, irq_count, cb_count); - } - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_core_irq); - -void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms, - struct dentry *parent) -{ - debugfs_create_file("core_irq", 0600, parent, dpu_kms, - &dpu_debugfs_core_irq_fops); -} -#endif - -void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms) -{ - int i; - - pm_runtime_get_sync(&dpu_kms->pdev->dev); - dpu_clear_all_irqs(dpu_kms); - dpu_disable_all_irqs(dpu_kms); - pm_runtime_put_sync(&dpu_kms->pdev->dev); - - /* Create irq callbacks for all possible irq_idx */ - dpu_kms->irq_obj.total_irqs = dpu_kms->hw_intr->total_irqs; - dpu_kms->irq_obj.irq_cb_tbl = kcalloc(dpu_kms->irq_obj.total_irqs, - sizeof(struct list_head), GFP_KERNEL); - dpu_kms->irq_obj.irq_counts = kcalloc(dpu_kms->irq_obj.total_irqs, - sizeof(atomic_t), GFP_KERNEL); - for (i = 0; i < dpu_kms->irq_obj.total_irqs; i++) { - INIT_LIST_HEAD(&dpu_kms->irq_obj.irq_cb_tbl[i]); - atomic_set(&dpu_kms->irq_obj.irq_counts[i], 0); - } -} - -void dpu_core_irq_uninstall(struct dpu_kms *dpu_kms) -{ - int i; - - pm_runtime_get_sync(&dpu_kms->pdev->dev); - for (i = 0; i < dpu_kms->irq_obj.total_irqs; i++) - if (!list_empty(&dpu_kms->irq_obj.irq_cb_tbl[i])) - DPU_ERROR("irq_idx=%d still enabled/registered\n", i); - - dpu_clear_all_irqs(dpu_kms); - dpu_disable_all_irqs(dpu_kms); - pm_runtime_put_sync(&dpu_kms->pdev->dev); - - kfree(dpu_kms->irq_obj.irq_cb_tbl); - kfree(dpu_kms->irq_obj.irq_counts); - dpu_kms->irq_obj.irq_cb_tbl = NULL; - dpu_kms->irq_obj.irq_counts = NULL; - dpu_kms->irq_obj.total_irqs = 0; -} - -irqreturn_t dpu_core_irq(struct dpu_kms *dpu_kms) -{ - /* - * Dispatch to HW driver to handle interrupt lookup that is being - * fired. When matching interrupt is located, HW driver will call to - * dpu_core_irq_callback_handler with the irq_idx from the lookup table. - * dpu_core_irq_callback_handler will perform the registered function - * callback, and do the interrupt status clearing once the registered - * callback is finished. - * Function will also clear the interrupt status after reading. - */ - dpu_kms->hw_intr->ops.dispatch_irqs( - dpu_kms->hw_intr, - dpu_core_irq_callback_handler, - dpu_kms); - - return IRQ_HANDLED; -} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c index 2e816f232e85..2437b0c7c073 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c @@ -3,12 +3,15 @@ */
#include <linux/bitops.h> +#include <linux/debugfs.h> #include <linux/slab.h>
+#include "dpu_core_irq.h" #include "dpu_kms.h" #include "dpu_hw_interrupts.h" #include "dpu_hw_util.h" #include "dpu_hw_mdss.h" +#include "dpu_trace.h"
/** * Register offsets in MDSS register file for the interrupt registers @@ -132,10 +135,34 @@ static void dpu_hw_intr_clear_intr_status_nolock(struct dpu_hw_intr *intr, wmb(); }
-static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr, - void (*cbfunc)(void *, int), - void *arg) +/** + * dpu_core_irq_callback_handler - dispatch core interrupts + * @arg: private data of callback handler + * @irq_idx: interrupt index + */ +static void dpu_core_irq_callback_handler(struct dpu_kms *dpu_kms, int irq_idx) { + struct dpu_irq *irq_obj = &dpu_kms->irq_obj; + struct dpu_irq_callback *cb; + + VERB("irq_idx=%d\n", irq_idx); + + if (list_empty(&irq_obj->irq_cb_tbl[irq_idx])) + DRM_ERROR("no registered cb, idx:%d\n", irq_idx); + + atomic_inc(&irq_obj->irq_counts[irq_idx]); + + /* + * Perform registered function callback + */ + list_for_each_entry(cb, &irq_obj->irq_cb_tbl[irq_idx], list) + if (cb->func) + cb->func(cb->arg, irq_idx); +} + +irqreturn_t dpu_core_irq(struct dpu_kms *dpu_kms) +{ + struct dpu_hw_intr *intr = dpu_kms->hw_intr; int reg_idx; int irq_idx; u32 irq_status; @@ -144,13 +171,8 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr, unsigned long irq_flags;
if (!intr) - return; + return IRQ_NONE;
- /* - * The dispatcher will save the IRQ status before calling here. - * Now need to go through each IRQ status and find matching - * irq lookup index. - */ spin_lock_irqsave(&intr->irq_lock, irq_flags); for (reg_idx = 0; reg_idx < ARRAY_SIZE(dpu_intr_set); reg_idx++) { if (!test_bit(reg_idx, &intr->irq_mask)) @@ -178,15 +200,8 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr, */ while ((bit = ffs(irq_status)) != 0) { irq_idx = DPU_IRQ_IDX(reg_idx, bit - 1); - /* - * Once a match on irq mask, perform a callback - * to the given cbfunc. cbfunc will take care - * the interrupt status clearing. If cbfunc is - * not provided, then the interrupt clearing - * is here. - */ - if (cbfunc) - cbfunc(arg, irq_idx); + + dpu_core_irq_callback_handler(dpu_kms, irq_idx);
dpu_hw_intr_clear_intr_status_nolock(intr, irq_idx);
@@ -203,6 +218,8 @@ static void dpu_hw_intr_dispatch_irq(struct dpu_hw_intr *intr, wmb();
spin_unlock_irqrestore(&intr->irq_lock, irq_flags); + + return IRQ_HANDLED; }
static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx) @@ -303,12 +320,13 @@ static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx) return 0; }
-static int dpu_hw_intr_clear_irqs(struct dpu_hw_intr *intr) +static void dpu_clear_irqs(struct dpu_kms *dpu_kms) { + struct dpu_hw_intr *intr = dpu_kms->hw_intr; int i;
if (!intr) - return -EINVAL; + return;
for (i = 0; i < ARRAY_SIZE(dpu_intr_set); i++) { if (test_bit(i, &intr->irq_mask)) @@ -318,16 +336,15 @@ static int dpu_hw_intr_clear_irqs(struct dpu_hw_intr *intr)
/* ensure register writes go through */ wmb(); - - return 0; }
-static int dpu_hw_intr_disable_irqs(struct dpu_hw_intr *intr) +static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms) { + struct dpu_hw_intr *intr = dpu_kms->hw_intr; int i;
if (!intr) - return -EINVAL; + return;
for (i = 0; i < ARRAY_SIZE(dpu_intr_set); i++) { if (test_bit(i, &intr->irq_mask)) @@ -337,13 +354,11 @@ static int dpu_hw_intr_disable_irqs(struct dpu_hw_intr *intr)
/* ensure register writes go through */ wmb(); - - return 0; }
-static u32 dpu_hw_intr_get_interrupt_status(struct dpu_hw_intr *intr, - int irq_idx, bool clear) +u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx, bool clear) { + struct dpu_hw_intr *intr = dpu_kms->hw_intr; int reg_idx; unsigned long irq_flags; u32 intr_status; @@ -351,6 +366,12 @@ static u32 dpu_hw_intr_get_interrupt_status(struct dpu_hw_intr *intr, if (!intr) return 0;
+ if (irq_idx < 0) { + DPU_ERROR("[%pS] invalid irq_idx=%d\n", + __builtin_return_address(0), irq_idx); + return 0; + } + if (irq_idx < 0 || irq_idx >= intr->total_irqs) { pr_err("invalid IRQ index: [%d]\n", irq_idx); return 0; @@ -374,32 +395,6 @@ static u32 dpu_hw_intr_get_interrupt_status(struct dpu_hw_intr *intr, return intr_status; }
-static unsigned long dpu_hw_intr_lock(struct dpu_hw_intr *intr) -{ - unsigned long irq_flags; - - spin_lock_irqsave(&intr->irq_lock, irq_flags); - - return irq_flags; -} - -static void dpu_hw_intr_unlock(struct dpu_hw_intr *intr, unsigned long irq_flags) -{ - spin_unlock_irqrestore(&intr->irq_lock, irq_flags); -} - -static void __setup_intr_ops(struct dpu_hw_intr_ops *ops) -{ - ops->enable_irq_locked = dpu_hw_intr_enable_irq_locked; - ops->disable_irq_locked = dpu_hw_intr_disable_irq_locked; - ops->dispatch_irqs = dpu_hw_intr_dispatch_irq; - ops->clear_all_irqs = dpu_hw_intr_clear_irqs; - ops->disable_all_irqs = dpu_hw_intr_disable_irqs; - ops->get_interrupt_status = dpu_hw_intr_get_interrupt_status; - ops->lock = dpu_hw_intr_lock; - ops->unlock = dpu_hw_intr_unlock; -} - static void __intr_offset(struct dpu_mdss_cfg *m, void __iomem *addr, struct dpu_hw_blk_reg_map *hw) { @@ -421,7 +416,6 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr, return ERR_PTR(-ENOMEM);
__intr_offset(m, addr, &intr->hw); - __setup_intr_ops(&intr->ops);
intr->total_irqs = ARRAY_SIZE(dpu_intr_set) * 32;
@@ -447,3 +441,168 @@ void dpu_hw_intr_destroy(struct dpu_hw_intr *intr) } }
+int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx, + struct dpu_irq_callback *register_irq_cb) +{ + unsigned long irq_flags; + + if (!dpu_kms->irq_obj.irq_cb_tbl) { + DPU_ERROR("invalid params\n"); + return -EINVAL; + } + + if (!register_irq_cb || !register_irq_cb->func) { + DPU_ERROR("invalid irq_cb:%d func:%d\n", + register_irq_cb != NULL, + register_irq_cb ? + register_irq_cb->func != NULL : -1); + return -EINVAL; + } + + if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) { + DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx); + return -EINVAL; + } + + VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); + + spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags); + trace_dpu_core_irq_register_callback(irq_idx, register_irq_cb); + list_del_init(®ister_irq_cb->list); + list_add_tail(®ister_irq_cb->list, + &dpu_kms->irq_obj.irq_cb_tbl[irq_idx]); + if (list_is_first(®ister_irq_cb->list, + &dpu_kms->irq_obj.irq_cb_tbl[irq_idx])) { + int ret = dpu_hw_intr_enable_irq_locked( + dpu_kms->hw_intr, + irq_idx); + if (ret) + DPU_ERROR("Fail to enable IRQ for irq_idx:%d\n", + irq_idx); + } + spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags); + + return 0; +} + +int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx, + struct dpu_irq_callback *register_irq_cb) +{ + unsigned long irq_flags; + + if (!dpu_kms->irq_obj.irq_cb_tbl) { + DPU_ERROR("invalid params\n"); + return -EINVAL; + } + + if (!register_irq_cb || !register_irq_cb->func) { + DPU_ERROR("invalid irq_cb:%d func:%d\n", + register_irq_cb != NULL, + register_irq_cb ? + register_irq_cb->func != NULL : -1); + return -EINVAL; + } + + if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) { + DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx); + return -EINVAL; + } + + VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); + + spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags); + trace_dpu_core_irq_unregister_callback(irq_idx, register_irq_cb); + list_del_init(®ister_irq_cb->list); + /* empty callback list but interrupt is still enabled */ + if (list_empty(&dpu_kms->irq_obj.irq_cb_tbl[irq_idx])) { + int ret = dpu_hw_intr_disable_irq_locked( + dpu_kms->hw_intr, + irq_idx); + if (ret) + DPU_ERROR("Fail to disable IRQ for irq_idx:%d\n", + irq_idx); + VERB("irq_idx=%d ret=%d\n", irq_idx, ret); + } + spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags); + + return 0; +} + +#ifdef CONFIG_DEBUG_FS +static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v) +{ + struct dpu_kms *dpu_kms = s->private; + struct dpu_irq *irq_obj = &dpu_kms->irq_obj; + struct dpu_irq_callback *cb; + unsigned long irq_flags; + int i, irq_count, cb_count; + + if (WARN_ON(!irq_obj->irq_cb_tbl)) + return 0; + + for (i = 0; i < irq_obj->total_irqs; i++) { + spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags); + cb_count = 0; + irq_count = atomic_read(&irq_obj->irq_counts[i]); + list_for_each_entry(cb, &irq_obj->irq_cb_tbl[i], list) + cb_count++; + spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags); + + if (irq_count || cb_count) + seq_printf(s, "idx:%d irq:%d cb:%d\n", + i, irq_count, cb_count); + } + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(dpu_debugfs_core_irq); + +void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms, + struct dentry *parent) +{ + debugfs_create_file("core_irq", 0600, parent, dpu_kms, + &dpu_debugfs_core_irq_fops); +} +#endif + +void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms) +{ + int i; + + pm_runtime_get_sync(&dpu_kms->pdev->dev); + dpu_clear_irqs(dpu_kms); + dpu_disable_all_irqs(dpu_kms); + pm_runtime_put_sync(&dpu_kms->pdev->dev); + + /* Create irq callbacks for all possible irq_idx */ + dpu_kms->irq_obj.total_irqs = dpu_kms->hw_intr->total_irqs; + dpu_kms->irq_obj.irq_cb_tbl = kcalloc(dpu_kms->irq_obj.total_irqs, + sizeof(struct list_head), GFP_KERNEL); + dpu_kms->irq_obj.irq_counts = kcalloc(dpu_kms->irq_obj.total_irqs, + sizeof(atomic_t), GFP_KERNEL); + for (i = 0; i < dpu_kms->irq_obj.total_irqs; i++) { + INIT_LIST_HEAD(&dpu_kms->irq_obj.irq_cb_tbl[i]); + atomic_set(&dpu_kms->irq_obj.irq_counts[i], 0); + } +} + +void dpu_core_irq_uninstall(struct dpu_kms *dpu_kms) +{ + int i; + + pm_runtime_get_sync(&dpu_kms->pdev->dev); + for (i = 0; i < dpu_kms->irq_obj.total_irqs; i++) + if (!list_empty(&dpu_kms->irq_obj.irq_cb_tbl[i])) + DPU_ERROR("irq_idx=%d still enabled/registered\n", i); + + dpu_clear_irqs(dpu_kms); + dpu_disable_all_irqs(dpu_kms); + pm_runtime_put_sync(&dpu_kms->pdev->dev); + + kfree(dpu_kms->irq_obj.irq_cb_tbl); + kfree(dpu_kms->irq_obj.irq_counts); + dpu_kms->irq_obj.irq_cb_tbl = NULL; + dpu_kms->irq_obj.irq_counts = NULL; + dpu_kms->irq_obj.total_irqs = 0; +} diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h index ac83c1159815..99ab01f54aa6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h @@ -32,92 +32,6 @@ enum dpu_hw_intr_reg {
#define DPU_IRQ_IDX(reg_idx, offset) (reg_idx * 32 + offset)
-struct dpu_hw_intr; - -/** - * Interrupt operations. - */ -struct dpu_hw_intr_ops { - - /** - * enable_irq - Enable IRQ based on lookup IRQ index - * @intr: HW interrupt handle - * @irq_idx: Lookup irq index return from irq_idx_lookup - * @return: 0 for success, otherwise failure - */ - int (*enable_irq_locked)( - struct dpu_hw_intr *intr, - int irq_idx); - - /** - * disable_irq - Disable IRQ based on lookup IRQ index - * @intr: HW interrupt handle - * @irq_idx: Lookup irq index return from irq_idx_lookup - * @return: 0 for success, otherwise failure - */ - int (*disable_irq_locked)( - struct dpu_hw_intr *intr, - int irq_idx); - - /** - * clear_all_irqs - Clears all the interrupts (i.e. acknowledges - * any asserted IRQs). Useful during reset. - * @intr: HW interrupt handle - * @return: 0 for success, otherwise failure - */ - int (*clear_all_irqs)( - struct dpu_hw_intr *intr); - - /** - * disable_all_irqs - Disables all the interrupts. Useful during reset. - * @intr: HW interrupt handle - * @return: 0 for success, otherwise failure - */ - int (*disable_all_irqs)( - struct dpu_hw_intr *intr); - - /** - * dispatch_irqs - IRQ dispatcher will call the given callback - * function when a matching interrupt status bit is - * found in the irq mapping table. - * @intr: HW interrupt handle - * @cbfunc: Callback function pointer - * @arg: Argument to pass back during callback - */ - void (*dispatch_irqs)( - struct dpu_hw_intr *intr, - void (*cbfunc)(void *arg, int irq_idx), - void *arg); - - /** - * get_interrupt_status - Gets HW interrupt status, and clear if set, - * based on given lookup IRQ index. - * @intr: HW interrupt handle - * @irq_idx: Lookup irq index return from irq_idx_lookup - * @clear: True to clear irq after read - */ - u32 (*get_interrupt_status)( - struct dpu_hw_intr *intr, - int irq_idx, - bool clear); - - /** - * lock - take the IRQ lock - * @intr: HW interrupt handle - * @return: irq_flags for the taken spinlock - */ - unsigned long (*lock)( - struct dpu_hw_intr *intr); - - /** - * unlock - take the IRQ lock - * @intr: HW interrupt handle - * @irq_flags: the irq_flags returned from lock - */ - void (*unlock)( - struct dpu_hw_intr *intr, unsigned long irq_flags); -}; - /** * struct dpu_hw_intr: hw interrupts handling data structure * @hw: virtual address mapping @@ -129,7 +43,6 @@ struct dpu_hw_intr_ops { */ struct dpu_hw_intr { struct dpu_hw_blk_reg_map hw; - struct dpu_hw_intr_ops ops; u32 *cache_irq_mask; u32 *save_irq_status; u32 total_irqs;