[PATCH v2 3/6] drm/msm/dpu: split interrupt address arrays
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Mon May 22 21:45:24 UTC 2023
There is no point in having a single enum (and a single array) for both
DPU < 7.0 and DPU >= 7.0 interrupt registers. Instead define a single
enum and two IRQ address arrays.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
.../msm/disp/dpu1/catalog/dpu_7_0_sm8350.h | 1 +
.../msm/disp/dpu1/catalog/dpu_7_2_sc7280.h | 1 +
.../msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h | 1 +
.../msm/disp/dpu1/catalog/dpu_8_1_sm8450.h | 1 +
.../msm/disp/dpu1/catalog/dpu_9_0_sm8550.h | 1 +
.../gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h | 2 +
.../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 82 +++++++++++++------
.../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h | 28 ++++---
8 files changed, 79 insertions(+), 38 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
index 3c1b2c13398d..320cfa4be633 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h
@@ -15,6 +15,7 @@ static const struct dpu_caps sm8350_dpu_caps = {
.has_dim_layer = true,
.has_idle_pc = true,
.has_3d_merge = true,
+ .has_7xxx_intr = true,
.max_linewidth = 4096,
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
};
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
index 5d894cbb0a62..9306c7a115e9 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_2_sc7280.h
@@ -13,6 +13,7 @@ static const struct dpu_caps sc7280_dpu_caps = {
.qseed_type = DPU_SSPP_SCALER_QSEED4,
.has_dim_layer = true,
.has_idle_pc = true,
+ .has_7xxx_intr = true,
.max_linewidth = 2400,
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
};
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
index c3f1ae000a21..fc1e17c495f0 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_0_sc8280xp.h
@@ -15,6 +15,7 @@ static const struct dpu_caps sc8280xp_dpu_caps = {
.has_dim_layer = true,
.has_idle_pc = true,
.has_3d_merge = true,
+ .has_7xxx_intr = true,
.max_linewidth = 5120,
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
};
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
index 86c2e68ebd2c..eb72411c16db 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_8_1_sm8450.h
@@ -14,6 +14,7 @@ static const struct dpu_caps sm8450_dpu_caps = {
.has_src_split = true,
.has_dim_layer = true,
.has_idle_pc = true,
+ .has_7xxx_intr = true,
.has_3d_merge = true,
.max_linewidth = 5120,
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
index 85dc34458b88..8209ca317bdc 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h
@@ -15,6 +15,7 @@ static const struct dpu_caps sm8550_dpu_caps = {
.has_dim_layer = true,
.has_idle_pc = true,
.has_3d_merge = true,
+ .has_7xxx_intr = true,
.max_linewidth = 5120,
.pixel_ram_size = DEFAULT_PIXEL_RAM_SIZE,
};
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
index 677048cc3b7d..72530ebb0ae6 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h
@@ -351,6 +351,7 @@ struct dpu_rotation_cfg {
* @has_dim_layer dim layer feature status
* @has_idle_pc indicate if idle power collapse feature is supported
* @has_3d_merge indicate if 3D merge is supported
+ * @has_7xxx_intr indicate that INTF/IRQs use addressing for DPU 7.0 and greater
* @max_linewidth max linewidth for sspp
* @pixel_ram_size size of latency hiding and de-tiling buffer in bytes
* @max_hdeci_exp max horizontal decimation supported (max is 2^value)
@@ -364,6 +365,7 @@ struct dpu_caps {
bool has_dim_layer;
bool has_idle_pc;
bool has_3d_merge;
+ bool has_7xxx_intr;
/* SSPP limits */
u32 max_linewidth;
u32 pixel_ram_size;
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 0776b0f6df4f..a03d826bb9ad 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
@@ -51,11 +51,9 @@ struct dpu_intr_reg {
};
/*
- * struct dpu_intr_reg - List of DPU interrupt registers
- *
- * When making changes be sure to sync with dpu_hw_intr_reg
+ * dpu_intr_set_legacy - List of DPU interrupt registers for DPU <= 6.x
*/
-static const struct dpu_intr_reg dpu_intr_set[] = {
+static const struct dpu_intr_reg dpu_intr_set_legacy[] = {
[MDP_SSPP_TOP0_INTR] = {
INTR_CLEAR,
INTR_EN,
@@ -121,57 +119,78 @@ static const struct dpu_intr_reg dpu_intr_set[] = {
MDP_AD4_INTR_EN_OFF(1),
MDP_AD4_INTR_STATUS_OFF(1),
},
- [MDP_INTF0_7xxx_INTR] = {
+};
+
+/*
+ * dpu_intr_set_7xxx - List of DPU interrupt registers for DPU >= 7.0
+ */
+static const struct dpu_intr_reg dpu_intr_set_7xxx[] = {
+ [MDP_SSPP_TOP0_INTR] = {
+ INTR_CLEAR,
+ INTR_EN,
+ INTR_STATUS
+ },
+ [MDP_SSPP_TOP0_INTR2] = {
+ INTR2_CLEAR,
+ INTR2_EN,
+ INTR2_STATUS
+ },
+ [MDP_SSPP_TOP0_HIST_INTR] = {
+ HIST_INTR_CLEAR,
+ HIST_INTR_EN,
+ HIST_INTR_STATUS
+ },
+ [MDP_INTF0_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(0),
MDP_INTF_REV_7xxx_INTR_EN(0),
MDP_INTF_REV_7xxx_INTR_STATUS(0)
},
- [MDP_INTF1_7xxx_INTR] = {
+ [MDP_INTF1_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(1),
MDP_INTF_REV_7xxx_INTR_EN(1),
MDP_INTF_REV_7xxx_INTR_STATUS(1)
},
- [MDP_INTF1_7xxx_TEAR_INTR] = {
+ [MDP_INTF1_TEAR_INTR] = {
MDP_INTF_REV_7xxx_INTR_TEAR_CLEAR(1),
MDP_INTF_REV_7xxx_INTR_TEAR_EN(1),
MDP_INTF_REV_7xxx_INTR_TEAR_STATUS(1)
},
- [MDP_INTF2_7xxx_INTR] = {
+ [MDP_INTF2_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(2),
MDP_INTF_REV_7xxx_INTR_EN(2),
MDP_INTF_REV_7xxx_INTR_STATUS(2)
},
- [MDP_INTF2_7xxx_TEAR_INTR] = {
+ [MDP_INTF2_TEAR_INTR] = {
MDP_INTF_REV_7xxx_INTR_TEAR_CLEAR(2),
MDP_INTF_REV_7xxx_INTR_TEAR_EN(2),
MDP_INTF_REV_7xxx_INTR_TEAR_STATUS(2)
},
- [MDP_INTF3_7xxx_INTR] = {
+ [MDP_INTF3_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(3),
MDP_INTF_REV_7xxx_INTR_EN(3),
MDP_INTF_REV_7xxx_INTR_STATUS(3)
},
- [MDP_INTF4_7xxx_INTR] = {
+ [MDP_INTF4_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(4),
MDP_INTF_REV_7xxx_INTR_EN(4),
MDP_INTF_REV_7xxx_INTR_STATUS(4)
},
- [MDP_INTF5_7xxx_INTR] = {
+ [MDP_INTF5_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(5),
MDP_INTF_REV_7xxx_INTR_EN(5),
MDP_INTF_REV_7xxx_INTR_STATUS(5)
},
- [MDP_INTF6_7xxx_INTR] = {
+ [MDP_INTF6_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(6),
MDP_INTF_REV_7xxx_INTR_EN(6),
MDP_INTF_REV_7xxx_INTR_STATUS(6)
},
- [MDP_INTF7_7xxx_INTR] = {
+ [MDP_INTF7_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(7),
MDP_INTF_REV_7xxx_INTR_EN(7),
MDP_INTF_REV_7xxx_INTR_STATUS(7)
},
- [MDP_INTF8_7xxx_INTR] = {
+ [MDP_INTF8_INTR] = {
MDP_INTF_REV_7xxx_INTR_CLEAR(8),
MDP_INTF_REV_7xxx_INTR_EN(8),
MDP_INTF_REV_7xxx_INTR_STATUS(8)
@@ -216,19 +235,19 @@ irqreturn_t dpu_core_irq(struct msm_kms *kms)
return IRQ_NONE;
spin_lock_irqsave(&intr->irq_lock, irq_flags);
- for (reg_idx = 0; reg_idx < ARRAY_SIZE(dpu_intr_set); reg_idx++) {
+ for (reg_idx = 0; reg_idx < MDP_INTR_MAX; reg_idx++) {
if (!test_bit(reg_idx, &intr->irq_mask))
continue;
/* Read interrupt status */
- irq_status = DPU_REG_READ(&intr->hw, dpu_intr_set[reg_idx].status_off);
+ irq_status = DPU_REG_READ(&intr->hw, intr->intr_set[reg_idx].status_off);
/* Read enable mask */
- enable_mask = DPU_REG_READ(&intr->hw, dpu_intr_set[reg_idx].en_off);
+ enable_mask = DPU_REG_READ(&intr->hw, intr->intr_set[reg_idx].en_off);
/* and clear the interrupt */
if (irq_status)
- DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off,
+ DPU_REG_WRITE(&intr->hw, intr->intr_set[reg_idx].clr_off,
irq_status);
/* Finally update IRQ status based on enable mask */
@@ -285,7 +304,11 @@ static int dpu_hw_intr_enable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
assert_spin_locked(&intr->irq_lock);
reg_idx = DPU_IRQ_REG(irq_idx);
- reg = &dpu_intr_set[reg_idx];
+ reg = &intr->intr_set[reg_idx];
+
+ /* Is this interrupt register supported on the platform */
+ if (WARN_ON(!reg->en_off))
+ return -EINVAL;
cache_irq_mask = intr->cache_irq_mask[reg_idx];
if (cache_irq_mask & DPU_IRQ_MASK(irq_idx)) {
@@ -334,7 +357,7 @@ static int dpu_hw_intr_disable_irq_locked(struct dpu_hw_intr *intr, int irq_idx)
assert_spin_locked(&intr->irq_lock);
reg_idx = DPU_IRQ_REG(irq_idx);
- reg = &dpu_intr_set[reg_idx];
+ reg = &intr->intr_set[reg_idx];
cache_irq_mask = intr->cache_irq_mask[reg_idx];
if ((cache_irq_mask & DPU_IRQ_MASK(irq_idx)) == 0) {
@@ -368,10 +391,10 @@ static void dpu_clear_irqs(struct dpu_kms *dpu_kms)
if (!intr)
return;
- for (i = 0; i < ARRAY_SIZE(dpu_intr_set); i++) {
+ for (i = 0; i < MDP_INTR_MAX; i++) {
if (test_bit(i, &intr->irq_mask))
DPU_REG_WRITE(&intr->hw,
- dpu_intr_set[i].clr_off, 0xffffffff);
+ intr->intr_set[i].clr_off, 0xffffffff);
}
/* ensure register writes go through */
@@ -386,10 +409,10 @@ static void dpu_disable_all_irqs(struct dpu_kms *dpu_kms)
if (!intr)
return;
- for (i = 0; i < ARRAY_SIZE(dpu_intr_set); i++) {
+ for (i = 0; i < MDP_INTR_MAX; i++) {
if (test_bit(i, &intr->irq_mask))
DPU_REG_WRITE(&intr->hw,
- dpu_intr_set[i].en_off, 0x00000000);
+ intr->intr_set[i].en_off, 0x00000000);
}
/* ensure register writes go through */
@@ -421,10 +444,10 @@ u32 dpu_core_irq_read(struct dpu_kms *dpu_kms, int irq_idx)
reg_idx = DPU_IRQ_REG(irq_idx);
intr_status = DPU_REG_READ(&intr->hw,
- dpu_intr_set[reg_idx].status_off) &
+ intr->intr_set[reg_idx].status_off) &
DPU_IRQ_MASK(irq_idx);
if (intr_status)
- DPU_REG_WRITE(&intr->hw, dpu_intr_set[reg_idx].clr_off,
+ DPU_REG_WRITE(&intr->hw, intr->intr_set[reg_idx].clr_off,
intr_status);
/* ensure register writes go through */
@@ -448,6 +471,11 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
if (!intr)
return ERR_PTR(-ENOMEM);
+ if (m->caps->has_7xxx_intr)
+ intr->intr_set = dpu_intr_set_7xxx;
+ else
+ intr->intr_set = dpu_intr_set_legacy;
+
intr->hw.blk_addr = addr + m->mdp[0].base;
intr->total_irqs = nirq;
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 1f2dabc54c22..f329d6d7f646 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
@@ -23,24 +23,29 @@ enum dpu_hw_intr_reg {
MDP_INTF3_INTR,
MDP_INTF4_INTR,
MDP_INTF5_INTR,
+ MDP_INTF6_INTR,
+ MDP_INTF7_INTR,
+ MDP_INTF8_INTR,
MDP_INTF1_TEAR_INTR,
MDP_INTF2_TEAR_INTR,
MDP_AD4_0_INTR,
MDP_AD4_1_INTR,
- MDP_INTF0_7xxx_INTR,
- MDP_INTF1_7xxx_INTR,
- MDP_INTF1_7xxx_TEAR_INTR,
- MDP_INTF2_7xxx_INTR,
- MDP_INTF2_7xxx_TEAR_INTR,
- MDP_INTF3_7xxx_INTR,
- MDP_INTF4_7xxx_INTR,
- MDP_INTF5_7xxx_INTR,
- MDP_INTF6_7xxx_INTR,
- MDP_INTF7_7xxx_INTR,
- MDP_INTF8_7xxx_INTR,
MDP_INTR_MAX,
};
+/* compatibility */
+#define MDP_INTF0_7xxx_INTR MDP_INTF0_INTR
+#define MDP_INTF1_7xxx_INTR MDP_INTF1_INTR
+#define MDP_INTF2_7xxx_INTR MDP_INTF2_INTR
+#define MDP_INTF3_7xxx_INTR MDP_INTF3_INTR
+#define MDP_INTF4_7xxx_INTR MDP_INTF4_INTR
+#define MDP_INTF5_7xxx_INTR MDP_INTF5_INTR
+#define MDP_INTF6_7xxx_INTR MDP_INTF6_INTR
+#define MDP_INTF7_7xxx_INTR MDP_INTF7_INTR
+#define MDP_INTF8_7xxx_INTR MDP_INTF8_INTR
+#define MDP_INTF1_7xxx_TEAR_INTR MDP_INTF1_TEAR_INTR
+#define MDP_INTF2_7xxx_TEAR_INTR MDP_INTF2_TEAR_INTR
+
#define DPU_IRQ_IDX(reg_idx, offset) (reg_idx * 32 + offset)
/**
@@ -60,6 +65,7 @@ struct dpu_hw_intr {
u32 total_irqs;
spinlock_t irq_lock;
unsigned long irq_mask;
+ const struct dpu_intr_reg *intr_set;
struct {
void (*cb)(void *arg, int irq_idx);
--
2.39.2
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