Merge branch irq/misc-6.5 into irq/irqchip-next

* irq/misc-6.5:
  : .
  : Misc cleanups:
  :
  : - Add a number of missing prototypes
  : - Mark global symbol as static where needed
  : - Drop some now useless non-DT code paths
  : - Add a missing interrupt mapping to the STM32 irqchip
  : - Silence another STM32 warning when building with W=1
  : - Fix the jcore-aic driver that actually never worked...
  : .
  Revert "irqchip/mxs: Include linux/irqchip/mxs.h"
  irqchip/jcore-aic: Fix missing allocation of IRQ descriptors
  irqchip/stm32-exti: Fix warning on initialized field overwritten
  irqchip/stm32-exti: Add STM32MP15xx IWDG2 EXTI to GIC map
  irqchip/gicv3: Add a iort_pmsi_get_dev_id() prototype
  irqchip/mxs: Include linux/irqchip/mxs.h
  irqchip/clps711x: Remove unused clps711x_intc_init() function
  irqchip/mmp: Remove non-DT codepath
  irqchip/ftintc010: Mark all function static
  irqdomain: Include internals.h for function prototypes

Signed-off-by: Marc Zyngier <[email protected]>

Author: Marc Zyngier

drivers/irqchip/irq-clps711x.c

@@ -212,12 +212,6 @@ static int __init _clps711x_intc_init(struct device_node *np,
 	return err;
 }
 
-void __init clps711x_intc_init(phys_addr_t base, resource_size_t size)
-{
-	BUG_ON(_clps711x_intc_init(NULL, base, size));
-}
-
-#ifdef CONFIG_IRQCHIP
 static int __init clps711x_intc_init_dt(struct device_node *np,
 					struct device_node *parent)
 {
@@ -231,4 +225,3 @@ static int __init clps711x_intc_init_dt(struct device_node *np,
 	return _clps711x_intc_init(np, res.start, resource_size(&res));
 }
 IRQCHIP_DECLARE(clps711x, "cirrus,ep7209-intc", clps711x_intc_init_dt);
-#endif

drivers/irqchip/irq-ftintc010.c

@@ -125,7 +125,7 @@ static struct irq_chip ft010_irq_chip = {
 /* Local static for the IRQ entry call */
 static struct ft010_irq_data firq;
 
-asmlinkage void __exception_irq_entry ft010_irqchip_handle_irq(struct pt_regs *regs)
+static asmlinkage void __exception_irq_entry ft010_irqchip_handle_irq(struct pt_regs *regs)
 {
 	struct ft010_irq_data *f = &firq;
 	int irq;
@@ -162,7 +162,7 @@ static const struct irq_domain_ops ft010_irqdomain_ops = {
 	.xlate = irq_domain_xlate_onetwocell,
 };
 
-int __init ft010_of_init_irq(struct device_node *node,
+static int __init ft010_of_init_irq(struct device_node *node,
 			      struct device_node *parent)
 {
 	struct ft010_irq_data *f = &firq;

drivers/irqchip/irq-jcore-aic.c

@@ -68,6 +68,7 @@ static int __init aic_irq_of_init(struct device_node *node,
 	unsigned min_irq = JCORE_AIC2_MIN_HWIRQ;
 	unsigned dom_sz = JCORE_AIC_MAX_HWIRQ+1;
 	struct irq_domain *domain;
+	int ret;
 
 	pr_info("Initializing J-Core AIC\n");
 
@@ -100,6 +101,12 @@ static int __init aic_irq_of_init(struct device_node *node,
 	jcore_aic.irq_unmask = noop;
 	jcore_aic.name = "AIC";
 
+	ret = irq_alloc_descs(-1, min_irq, dom_sz - min_irq,
+			      of_node_to_nid(node));
+
+	if (ret < 0)
+		return ret;
+
 	domain = irq_domain_add_legacy(node, dom_sz - min_irq, min_irq, min_irq,
 				       &jcore_aic_irqdomain_ops,
 				       &jcore_aic);

drivers/irqchip/irq-mmp.c

@@ -244,132 +244,6 @@ static void __exception_irq_entry mmp2_handle_irq(struct pt_regs *regs)
 	generic_handle_domain_irq(icu_data[0].domain, hwirq);
 }
 
-/* MMP (ARMv5) */
-void __init icu_init_irq(void)
-{
-	int irq;
-
-	max_icu_nr = 1;
-	mmp_icu_base = ioremap(0xd4282000, 0x1000);
-	icu_data[0].conf_enable = mmp_conf.conf_enable;
-	icu_data[0].conf_disable = mmp_conf.conf_disable;
-	icu_data[0].conf_mask = mmp_conf.conf_mask;
-	icu_data[0].nr_irqs = 64;
-	icu_data[0].virq_base = 0;
-	icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[0]);
-	for (irq = 0; irq < 64; irq++) {
-		icu_mask_irq(irq_get_irq_data(irq));
-		irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
-	}
-	irq_set_default_host(icu_data[0].domain);
-	set_handle_irq(mmp_handle_irq);
-}
-
-/* MMP2 (ARMv7) */
-void __init mmp2_init_icu(void)
-{
-	int irq, end;
-
-	max_icu_nr = 8;
-	mmp_icu_base = ioremap(0xd4282000, 0x1000);
-	icu_data[0].conf_enable = mmp2_conf.conf_enable;
-	icu_data[0].conf_disable = mmp2_conf.conf_disable;
-	icu_data[0].conf_mask = mmp2_conf.conf_mask;
-	icu_data[0].nr_irqs = 64;
-	icu_data[0].virq_base = 0;
-	icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[0]);
-	icu_data[1].reg_status = mmp_icu_base + 0x150;
-	icu_data[1].reg_mask = mmp_icu_base + 0x168;
-	icu_data[1].clr_mfp_irq_base = icu_data[0].virq_base +
-				icu_data[0].nr_irqs;
-	icu_data[1].clr_mfp_hwirq = 1;		/* offset to IRQ_MMP2_PMIC_BASE */
-	icu_data[1].nr_irqs = 2;
-	icu_data[1].cascade_irq = 4;
-	icu_data[1].virq_base = icu_data[0].virq_base + icu_data[0].nr_irqs;
-	icu_data[1].domain = irq_domain_add_legacy(NULL, icu_data[1].nr_irqs,
-						   icu_data[1].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[1]);
-	icu_data[2].reg_status = mmp_icu_base + 0x154;
-	icu_data[2].reg_mask = mmp_icu_base + 0x16c;
-	icu_data[2].nr_irqs = 2;
-	icu_data[2].cascade_irq = 5;
-	icu_data[2].virq_base = icu_data[1].virq_base + icu_data[1].nr_irqs;
-	icu_data[2].domain = irq_domain_add_legacy(NULL, icu_data[2].nr_irqs,
-						   icu_data[2].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[2]);
-	icu_data[3].reg_status = mmp_icu_base + 0x180;
-	icu_data[3].reg_mask = mmp_icu_base + 0x17c;
-	icu_data[3].nr_irqs = 3;
-	icu_data[3].cascade_irq = 9;
-	icu_data[3].virq_base = icu_data[2].virq_base + icu_data[2].nr_irqs;
-	icu_data[3].domain = irq_domain_add_legacy(NULL, icu_data[3].nr_irqs,
-						   icu_data[3].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[3]);
-	icu_data[4].reg_status = mmp_icu_base + 0x158;
-	icu_data[4].reg_mask = mmp_icu_base + 0x170;
-	icu_data[4].nr_irqs = 5;
-	icu_data[4].cascade_irq = 17;
-	icu_data[4].virq_base = icu_data[3].virq_base + icu_data[3].nr_irqs;
-	icu_data[4].domain = irq_domain_add_legacy(NULL, icu_data[4].nr_irqs,
-						   icu_data[4].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[4]);
-	icu_data[5].reg_status = mmp_icu_base + 0x15c;
-	icu_data[5].reg_mask = mmp_icu_base + 0x174;
-	icu_data[5].nr_irqs = 15;
-	icu_data[5].cascade_irq = 35;
-	icu_data[5].virq_base = icu_data[4].virq_base + icu_data[4].nr_irqs;
-	icu_data[5].domain = irq_domain_add_legacy(NULL, icu_data[5].nr_irqs,
-						   icu_data[5].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[5]);
-	icu_data[6].reg_status = mmp_icu_base + 0x160;
-	icu_data[6].reg_mask = mmp_icu_base + 0x178;
-	icu_data[6].nr_irqs = 2;
-	icu_data[6].cascade_irq = 51;
-	icu_data[6].virq_base = icu_data[5].virq_base + icu_data[5].nr_irqs;
-	icu_data[6].domain = irq_domain_add_legacy(NULL, icu_data[6].nr_irqs,
-						   icu_data[6].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[6]);
-	icu_data[7].reg_status = mmp_icu_base + 0x188;
-	icu_data[7].reg_mask = mmp_icu_base + 0x184;
-	icu_data[7].nr_irqs = 2;
-	icu_data[7].cascade_irq = 55;
-	icu_data[7].virq_base = icu_data[6].virq_base + icu_data[6].nr_irqs;
-	icu_data[7].domain = irq_domain_add_legacy(NULL, icu_data[7].nr_irqs,
-						   icu_data[7].virq_base, 0,
-						   &irq_domain_simple_ops,
-						   &icu_data[7]);
-	end = icu_data[7].virq_base + icu_data[7].nr_irqs;
-	for (irq = 0; irq < end; irq++) {
-		icu_mask_irq(irq_get_irq_data(irq));
-		if (irq == icu_data[1].cascade_irq ||
-		    irq == icu_data[2].cascade_irq ||
-		    irq == icu_data[3].cascade_irq ||
-		    irq == icu_data[4].cascade_irq ||
-		    irq == icu_data[5].cascade_irq ||
-		    irq == icu_data[6].cascade_irq ||
-		    irq == icu_data[7].cascade_irq) {
-			irq_set_chip(irq, &icu_irq_chip);
-			irq_set_chained_handler(irq, icu_mux_irq_demux);
-		} else {
-			irq_set_chip_and_handler(irq, &icu_irq_chip,
-						 handle_level_irq);
-		}
-	}
-	irq_set_default_host(icu_data[0].domain);
-	set_handle_irq(mmp2_handle_irq);
-}
-
-#ifdef CONFIG_OF
 static int __init mmp_init_bases(struct device_node *node)
 {
 	int ret, nr_irqs, irq, i = 0;
@@ -548,4 +422,3 @@ static int __init mmp2_mux_of_init(struct device_node *node,
 	return -EINVAL;
 }
 IRQCHIP_DECLARE(mmp2_mux_intc, "mrvl,mmp2-mux-intc", mmp2_mux_of_init);
-#endif

drivers/irqchip/irq-stm32-exti.c

@@ -173,6 +173,16 @@ static struct irq_chip stm32_exti_h_chip_direct;
 #define EXTI_INVALID_IRQ       U8_MAX
 #define STM32MP1_DESC_IRQ_SIZE (ARRAY_SIZE(stm32mp1_exti_banks) * IRQS_PER_BANK)
 
+/*
+ * Use some intentionally tricky logic here to initialize the whole array to
+ * EXTI_INVALID_IRQ, but then override certain fields, requiring us to indicate
+ * that we "know" that there are overrides in this structure, and we'll need to
+ * disable that warning from W=1 builds.
+ */
+__diag_push();
+__diag_ignore_all("-Woverride-init",
+		  "logic to initialize all and then override some is OK");
+
 static const u8 stm32mp1_desc_irq[] = {
 	/* default value */
 	[0 ... (STM32MP1_DESC_IRQ_SIZE - 1)] = EXTI_INVALID_IRQ,
@@ -208,6 +218,7 @@ static const u8 stm32mp1_desc_irq[] = {
 	[31] = 53,
 	[32] = 82,
 	[33] = 83,
+	[46] = 151,
 	[47] = 93,
 	[48] = 138,
 	[50] = 139,
@@ -266,6 +277,8 @@ static const u8 stm32mp13_desc_irq[] = {
 	[70] = 98,
 };
 
+__diag_pop();
+
 static const struct stm32_exti_drv_data stm32mp1_drv_data = {
 	.exti_banks = stm32mp1_exti_banks,
 	.bank_nr = ARRAY_SIZE(stm32mp1_exti_banks),

include/linux/acpi_iort.h

@@ -26,13 +26,14 @@ int iort_register_domain_token(int trans_id, phys_addr_t base,
 			       struct fwnode_handle *fw_node);
 void iort_deregister_domain_token(int trans_id);
 struct fwnode_handle *iort_find_domain_token(int trans_id);
+int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
+
 #ifdef CONFIG_ACPI_IORT
 void acpi_iort_init(void);
 u32 iort_msi_map_id(struct device *dev, u32 id);
 struct irq_domain *iort_get_device_domain(struct device *dev, u32 id,
 					  enum irq_domain_bus_token bus_token);
 void acpi_configure_pmsi_domain(struct device *dev);
-int iort_pmsi_get_dev_id(struct device *dev, u32 *dev_id);
 void iort_get_rmr_sids(struct fwnode_handle *iommu_fwnode,
 		       struct list_head *head);
 void iort_put_rmr_sids(struct fwnode_handle *iommu_fwnode,

include/linux/irqchip/mmp.h

@@ -1915,6 +1915,8 @@ static void irq_domain_check_hierarchy(struct irq_domain *domain)
 #endif	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
 
 #ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+#include "internals.h"
+
 static struct dentry *domain_dir;
 
 static void