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path: root/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
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Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c')
-rw-r--r--drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c172
1 files changed, 101 insertions, 71 deletions
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 e3c50439f80a..946dd0135dff 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
@@ -6,6 +6,8 @@
#include <linux/debugfs.h>
#include <linux/slab.h>
+#include <drm/drm_managed.h>
+
#include "dpu_core_irq.h"
#include "dpu_kms.h"
#include "dpu_hw_interrupts.h"
@@ -197,27 +199,40 @@ static const struct dpu_intr_reg dpu_intr_set_7xxx[] = {
},
};
-#define DPU_IRQ_REG(irq_idx) (irq_idx / 32)
-#define DPU_IRQ_MASK(irq_idx) (BIT(irq_idx % 32))
+#define DPU_IRQ_MASK(irq_idx) (BIT(DPU_IRQ_BIT(irq_idx)))
+
+static inline bool dpu_core_irq_is_valid(unsigned int irq_idx)
+{
+ return irq_idx && irq_idx <= DPU_NUM_IRQS;
+}
+
+static inline struct dpu_hw_intr_entry *dpu_core_irq_get_entry(struct dpu_hw_intr *intr,
+ unsigned int irq_idx)
+{
+ return &intr->irq_tbl[irq_idx - 1];
+}
/**
* dpu_core_irq_callback_handler - dispatch core interrupts
* @dpu_kms: Pointer to DPU's KMS structure
* @irq_idx: interrupt index
*/
-static void dpu_core_irq_callback_handler(struct dpu_kms *dpu_kms, int irq_idx)
+static void dpu_core_irq_callback_handler(struct dpu_kms *dpu_kms, unsigned int irq_idx)
{
- VERB("irq_idx=%d\n", irq_idx);
+ struct dpu_hw_intr_entry *irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, irq_idx);
- if (!dpu_kms->hw_intr->irq_tbl[irq_idx].cb)
- DRM_ERROR("no registered cb, idx:%d\n", irq_idx);
+ VERB("IRQ=[%d, %d]\n", DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
- atomic_inc(&dpu_kms->hw_intr->irq_tbl[irq_idx].count);
+ if (!irq_entry->cb)
+ DRM_ERROR("no registered cb, IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
+
+ atomic_inc(&irq_entry->count);
/*
* Perform registered function callback
*/
- dpu_kms->hw_intr->irq_tbl[irq_idx].cb(dpu_kms->hw_intr->irq_tbl[irq_idx].arg, irq_idx);
+ irq_entry->cb(irq_entry->arg);
}
irqreturn_t dpu_core_irq(struct msm_kms *kms)
@@ -225,7 +240,7 @@ irqreturn_t dpu_core_irq(struct msm_kms *kms)
struct dpu_kms *dpu_kms = to_dpu_kms(kms);
struct dpu_hw_intr *intr = dpu_kms->hw_intr;
int reg_idx;
- int irq_idx;
+ unsigned int irq_idx;
u32 irq_status;
u32 enable_mask;
int bit;
@@ -281,7 +296,8 @@ irqreturn_t dpu_core_irq(struct msm_kms *kms)
return IRQ_HANDLED;
}
-static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
+static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr,
+ unsigned int irq_idx)
{
int reg_idx;
const struct dpu_intr_reg *reg;
@@ -291,8 +307,9 @@ static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
if (!intr)
return -EINVAL;
- if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
- pr_err("invalid IRQ index: [%d]\n", irq_idx);
+ if (!dpu_core_irq_is_valid(irq_idx)) {
+ pr_err("invalid IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
@@ -328,13 +345,15 @@ static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
intr->cache_irq_mask[reg_idx] = cache_irq_mask;
}
- pr_debug("DPU IRQ %d %senabled: MASK:0x%.8lx, CACHE-MASK:0x%.8x\n", irq_idx, dbgstr,
+ pr_debug("DPU IRQ=[%d, %d] %senabled: MASK:0x%.8lx, CACHE-MASK:0x%.8x\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), dbgstr,
DPU_IRQ_MASK(irq_idx), cache_irq_mask);
return 0;
}
-static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
+static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr,
+ unsigned int irq_idx)
{
int reg_idx;
const struct dpu_intr_reg *reg;
@@ -344,8 +363,9 @@ static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
if (!intr)
return -EINVAL;
- if (irq_idx < 0 || irq_idx >= intr->total_irqs) {
- pr_err("invalid IRQ index: [%d]\n", irq_idx);
+ if (!dpu_core_irq_is_valid(irq_idx)) {
+ pr_err("invalid IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
@@ -377,7 +397,8 @@ static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
intr->cache_irq_mask[reg_idx] = cache_irq_mask;
}
- pr_debug("DPU IRQ %d %sdisabled: MASK:0x%.8lx, CACHE-MASK:0x%.8x\n", irq_idx, dbgstr,
+ pr_debug("DPU IRQ=[%d, %d] %sdisabled: MASK:0x%.8lx, CACHE-MASK:0x%.8x\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), dbgstr,
DPU_IRQ_MASK(irq_idx), cache_irq_mask);
return 0;
@@ -419,7 +440,8 @@ static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms)
wmb();
}
-u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
+u32 dpu_core_irq_read(struct dpu_kms *dpu_kms,
+ unsigned int irq_idx)
{
struct dpu_hw_intr *intr = dpu_kms->hw_intr;
int reg_idx;
@@ -429,14 +451,8 @@ u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
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);
+ if (!dpu_core_irq_is_valid(irq_idx)) {
+ pr_err("invalid IRQ=[%d, %d]\n", DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return 0;
}
@@ -458,17 +474,17 @@ u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
return intr_status;
}
-struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
- const struct dpu_mdss_cfg *m)
+struct dpu_hw_intr *dpu_hw_intr_init(struct drm_device *dev,
+ void __iomem *addr,
+ const struct dpu_mdss_cfg *m)
{
struct dpu_hw_intr *intr;
- int nirq = MDP_INTR_MAX * 32;
unsigned int i;
if (!addr || !m)
return ERR_PTR(-EINVAL);
- intr = kzalloc(struct_size(intr, irq_tbl, nirq), GFP_KERNEL);
+ intr = drmm_kzalloc(dev, sizeof(*intr), GFP_KERNEL);
if (!intr)
return ERR_PTR(-ENOMEM);
@@ -479,8 +495,6 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
intr->hw.blk_addr = addr + m->mdp[0].base;
- intr->total_irqs = nirq;
-
intr->irq_mask = BIT(MDP_SSPP_TOP0_INTR) |
BIT(MDP_SSPP_TOP0_INTR2) |
BIT(MDP_SSPP_TOP0_HIST_INTR);
@@ -492,7 +506,7 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
intr->irq_mask |= BIT(MDP_INTFn_INTR(intf->id));
- if (intf->intr_tear_rd_ptr != -1)
+ if (intf->intr_tear_rd_ptr)
intr->irq_mask |= BIT(DPU_IRQ_REG(intf->intr_tear_rd_ptr));
}
@@ -501,81 +515,87 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
return intr;
}
-void dpu_hw_intr_destroy(struct dpu_hw_intr *intr)
-{
- kfree(intr);
-}
-
-int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx,
- void (*irq_cb)(void *arg, int irq_idx),
- void *irq_arg)
+int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms,
+ unsigned int irq_idx,
+ void (*irq_cb)(void *arg),
+ void *irq_arg)
{
+ struct dpu_hw_intr_entry *irq_entry;
unsigned long irq_flags;
int ret;
if (!irq_cb) {
- DPU_ERROR("invalid ird_idx:%d irq_cb:%ps\n", irq_idx, irq_cb);
+ DPU_ERROR("invalid IRQ=[%d, %d] irq_cb:%ps\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), irq_cb);
return -EINVAL;
}
- if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
- DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
+ if (!dpu_core_irq_is_valid(irq_idx)) {
+ DPU_ERROR("invalid IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
- VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx);
+ VERB("[%pS] IRQ=[%d, %d]\n", __builtin_return_address(0),
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags);
- if (unlikely(WARN_ON(dpu_kms->hw_intr->irq_tbl[irq_idx].cb))) {
+ irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, irq_idx);
+ if (unlikely(WARN_ON(irq_entry->cb))) {
spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags);
return -EBUSY;
}
- trace_dpu_core_irq_register_callback(irq_idx, irq_cb);
- dpu_kms->hw_intr->irq_tbl[irq_idx].arg = irq_arg;
- dpu_kms->hw_intr->irq_tbl[irq_idx].cb = irq_cb;
+ trace_dpu_core_irq_register_callback(DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), irq_cb);
+ irq_entry->arg = irq_arg;
+ irq_entry->cb = irq_cb;
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);
+ DPU_ERROR("Failed/ to enable IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags);
- trace_dpu_irq_register_success(irq_idx);
+ trace_dpu_irq_register_success(DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return 0;
}
-int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx)
+int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms,
+ unsigned int irq_idx)
{
+ struct dpu_hw_intr_entry *irq_entry;
unsigned long irq_flags;
int ret;
- if (irq_idx < 0 || irq_idx >= dpu_kms->hw_intr->total_irqs) {
- DPU_ERROR("invalid IRQ index: [%d]\n", irq_idx);
+ if (!dpu_core_irq_is_valid(irq_idx)) {
+ DPU_ERROR("invalid IRQ=[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
- VERB("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx);
+ VERB("[%pS] IRQ=[%d, %d]\n", __builtin_return_address(0),
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags);
- trace_dpu_core_irq_unregister_callback(irq_idx);
+ trace_dpu_core_irq_unregister_callback(DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
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: %d\n",
- irq_idx, ret);
+ DPU_ERROR("Failed to disable IRQ=[%d, %d]: %d\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), ret);
- dpu_kms->hw_intr->irq_tbl[irq_idx].cb = NULL;
- dpu_kms->hw_intr->irq_tbl[irq_idx].arg = NULL;
+ irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, irq_idx);
+ irq_entry->cb = NULL;
+ irq_entry->arg = NULL;
spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags);
- trace_dpu_irq_unregister_success(irq_idx);
+ trace_dpu_irq_unregister_success(DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return 0;
}
@@ -584,18 +604,21 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx)
static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v)
{
struct dpu_kms *dpu_kms = s->private;
+ struct dpu_hw_intr_entry *irq_entry;
unsigned long irq_flags;
int i, irq_count;
void *cb;
- for (i = 0; i < dpu_kms->hw_intr->total_irqs; i++) {
+ for (i = 1; i <= DPU_NUM_IRQS; i++) {
spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags);
- irq_count = atomic_read(&dpu_kms->hw_intr->irq_tbl[i].count);
- cb = dpu_kms->hw_intr->irq_tbl[i].cb;
+ irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, i);
+ irq_count = atomic_read(&irq_entry->count);
+ cb = irq_entry->cb;
spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags);
if (irq_count || cb)
- seq_printf(s, "idx:%d irq:%d cb:%ps\n", i, irq_count, cb);
+ seq_printf(s, "IRQ=[%d, %d] count:%d cb:%ps\n",
+ DPU_IRQ_REG(i), DPU_IRQ_BIT(i), irq_count, cb);
}
return 0;
@@ -614,6 +637,7 @@ void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
void dpu_core_irq_preinstall(struct msm_kms *kms)
{
struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+ struct dpu_hw_intr_entry *irq_entry;
int i;
pm_runtime_get_sync(&dpu_kms->pdev->dev);
@@ -621,22 +645,28 @@ void dpu_core_irq_preinstall(struct msm_kms *kms)
dpu_disable_all_irqs(dpu_kms);
pm_runtime_put_sync(&dpu_kms->pdev->dev);
- for (i = 0; i < dpu_kms->hw_intr->total_irqs; i++)
- atomic_set(&dpu_kms->hw_intr->irq_tbl[i].count, 0);
+ for (i = 1; i <= DPU_NUM_IRQS; i++) {
+ irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, i);
+ atomic_set(&irq_entry->count, 0);
+ }
}
void dpu_core_irq_uninstall(struct msm_kms *kms)
{
struct dpu_kms *dpu_kms = to_dpu_kms(kms);
+ struct dpu_hw_intr_entry *irq_entry;
int i;
if (!dpu_kms->hw_intr)
return;
pm_runtime_get_sync(&dpu_kms->pdev->dev);
- for (i = 0; i < dpu_kms->hw_intr->total_irqs; i++)
- if (dpu_kms->hw_intr->irq_tbl[i].cb)
- DPU_ERROR("irq_idx=%d still enabled/registered\n", i);
+ for (i = 1; i <= DPU_NUM_IRQS; i++) {
+ irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, i);
+ if (irq_entry->cb)
+ DPU_ERROR("IRQ=[%d, %d] still enabled/registered\n",
+ DPU_IRQ_REG(i), DPU_IRQ_BIT(i));
+ }
dpu_clear_irqs(dpu_kms);
dpu_disable_all_irqs(dpu_kms);
generated by cgit (git 2.34.1) at 2025-04-21 09:31:27 +0000