[PATCH v3 5/6] drm/msm/dpu: stop using raw IRQ indices in the kernel output
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Fri Jul 28 23:31:59 UTC 2023
In preparation to reworking IRQ indcies, stop using raw indices in
kernel output (both printk and debugfs). Instead use a pair of register
index and bit. This corresponds closer to the values in HW catalog.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
.../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 49 ++++++++++++-------
1 file changed, 31 insertions(+), 18 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 308b122059cd..6071d3f05b0c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
@@ -199,6 +199,7 @@ 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_BIT(irq_idx) (ffs(DPU_IRQ_MASK(irq_idx)) - 1)
static inline bool dpu_core_irq_is_valid(struct dpu_hw_intr *intr,
int irq_idx)
@@ -221,10 +222,11 @@ static void dpu_core_irq_callback_handler(struct dpu_kms *dpu_kms, int irq_idx)
{
struct dpu_hw_intr_entry *irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, irq_idx);
- VERB("irq_idx=%d\n", irq_idx);
+ VERB("irq=[%d, %d]\n", DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
if (!irq_entry->cb)
- DRM_ERROR("no registered cb, idx:%d\n", irq_idx);
+ DRM_ERROR("no registered cb, IRQ:[%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
atomic_inc(&irq_entry->count);
@@ -306,7 +308,8 @@ static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
return -EINVAL;
if (!dpu_core_irq_is_valid(intr, irq_idx)) {
- pr_err("invalid IRQ index: [%d]\n", irq_idx);
+ pr_err("invalid IRQ: [%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
@@ -342,7 +345,8 @@ 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;
@@ -359,7 +363,8 @@ static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
return -EINVAL;
if (!dpu_core_irq_is_valid(intr, irq_idx)) {
- pr_err("invalid IRQ index: [%d]\n", irq_idx);
+ pr_err("invalid IRQ: [%d, %d]\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return -EINVAL;
}
@@ -391,7 +396,8 @@ 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;
@@ -444,7 +450,7 @@ u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
return 0;
if (!dpu_core_irq_is_valid(intr, irq_idx)) {
- pr_err("invalid IRQ index: [%d]\n", irq_idx);
+ pr_err("invalid IRQ: [%d, %d]\n", DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx));
return 0;
}
@@ -520,16 +526,19 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx,
int ret;
if (!irq_cb) {
- DPU_ERROR("invalid ird_idx:%d irq_cb:%ps\n", irq_idx, irq_cb);
+ DPU_ERROR("invalid ird_IRQ:[%d, %d] irq_cb:%ps\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), irq_cb);
return -EINVAL;
}
if (!dpu_core_irq_is_valid(dpu_kms->hw_intr, irq_idx)) {
- DPU_ERROR("invalid IRQ index: [%d]\n", 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);
@@ -548,8 +557,8 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx,
dpu_kms->hw_intr,
irq_idx);
if (ret)
- DPU_ERROR("Fail to enable IRQ for irq_idx:%d\n",
- irq_idx);
+ DPU_ERROR("Fail to enable IRQ for [%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);
@@ -564,19 +573,21 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx)
int ret;
if (!dpu_core_irq_is_valid(dpu_kms->hw_intr, irq_idx)) {
- DPU_ERROR("invalid IRQ index: [%d]\n", 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);
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("Fail to disable IRQ for [%d, %d]: %d\n",
+ DPU_IRQ_REG(irq_idx), DPU_IRQ_BIT(irq_idx), ret);
irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, irq_idx);
irq_entry->cb = NULL;
@@ -606,7 +617,8 @@ static int dpu_debugfs_core_irq_show(struct seq_file *s, void *v)
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;
@@ -652,7 +664,8 @@ void dpu_core_irq_uninstall(struct msm_kms *kms)
for (i = 0; i < DPU_NUM_IRQS; i++) {
irq_entry = dpu_core_irq_get_entry(dpu_kms->hw_intr, i);
if (irq_entry->cb)
- DPU_ERROR("irq_idx=%d still enabled/registered\n", i);
+ DPU_ERROR("irq=[%d, %d] still enabled/registered\n",
+ DPU_IRQ_REG(i), DPU_IRQ_BIT(i));
}
dpu_clear_irqs(dpu_kms);
--
2.39.2
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