Merge tag 'irqchip-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

 Core changes:

  - Allow irq retriggering to follow a hierarchy
  - Allow interrupt hierarchies to be trimmed at allocation time
  - Allow interrupts to be hidden from /proc/interrupts (IPIs)
  - Introduce stub for set_handle_irq() when !GENERIC_IRQ_MULTI_HANDLER
  - New per-cpu IPI handling flow

 Architecture changes:
  - Move arm/arm64 IPI handling to the core interrupt code, removing
    the home brewed accounting

 Driver updates:
 - New driver for the MStar (and more recently Mediatek) platforms
 - New driver for the Actions Owl SIRQ controller
 - New driver for the TI PRUSS infrastructure
 - Wake-up support for the Qualcomm PDC controller
 - Primary interrupt controller support for the Designware APB ICTL
 - Convert the IPI code for GIC, GICv3, hip04, armada-270-xp and bcm2836
   to using standard interrupts
 - Improve GICv3 pseudo-NMI support to deal with both non-secure and secure
   priorities on arm64
 - Convert the GIC/GICv3 drivers to using HW-based irq retrigger
 - A sprinkling of dev_err_probe() conversion
 - A set of NVIDIA Tegra fixes for interrupt hierarchy corruption
 - A reset fix for the Loongson HTVEC driver
 - A couple of error handling fixes in the TI SCI drivers

5 files changed, 23 insertions, 28 deletions

diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index 6647ae4f0231..880b9054d75c 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -153,7 +153,7 @@ static inline bool gic_prio_masking_enabled(void)
 
 static inline void gic_pmr_mask_irqs(void)
 {
-	BUILD_BUG_ON(GICD_INT_DEF_PRI < (GIC_PRIO_IRQOFF |
+	BUILD_BUG_ON(GICD_INT_DEF_PRI < (__GIC_PRIO_IRQOFF |
 					 GIC_PRIO_PSR_I_SET));
 	BUILD_BUG_ON(GICD_INT_DEF_PRI >= GIC_PRIO_IRQON);
 	/*
@@ -162,6 +162,12 @@ static inline void gic_pmr_mask_irqs(void)
 	 * are applied to IRQ priorities
 	 */
 	BUILD_BUG_ON((0x80 | (GICD_INT_DEF_PRI >> 1)) >= GIC_PRIO_IRQON);
+	/*
+	 * Same situation as above, but now we make sure that we can mask
+	 * regular interrupts.
+	 */
+	BUILD_BUG_ON((0x80 | (GICD_INT_DEF_PRI >> 1)) < (__GIC_PRIO_IRQOFF_NS |
+							 GIC_PRIO_PSR_I_SET));
 	gic_write_pmr(GIC_PRIO_IRQOFF);
 }
 
diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h
index 985493af704b..5ffa4bacdad3 100644
--- a/arch/arm64/include/asm/hardirq.h
+++ b/arch/arm64/include/asm/hardirq.h
@@ -13,21 +13,12 @@
 #include <asm/kvm_arm.h>
 #include <asm/sysreg.h>
 
-#define NR_IPI	7
-
 typedef struct {
 	unsigned int __softirq_pending;
-	unsigned int ipi_irqs[NR_IPI];
 } ____cacheline_aligned irq_cpustat_t;
 
 #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
 
-#define __inc_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)++
-#define __get_irq_stat(cpu, member)	__IRQ_STAT(cpu, member)
-
-u64 smp_irq_stat_cpu(unsigned int cpu);
-#define arch_irq_stat_cpu	smp_irq_stat_cpu
-
 #define __ARCH_IRQ_EXIT_IRQS_DISABLED	1
 
 struct nmi_ctx {
diff --git a/arch/arm64/include/asm/irq_work.h b/arch/arm64/include/asm/irq_work.h
index 8a1ef1907760..a1020285ea75 100644
--- a/arch/arm64/include/asm/irq_work.h
+++ b/arch/arm64/include/asm/irq_work.h
@@ -2,11 +2,9 @@
 #ifndef __ASM_IRQ_WORK_H
 #define __ASM_IRQ_WORK_H
 
-#include <asm/smp.h>
-
 static inline bool arch_irq_work_has_interrupt(void)
 {
-	return !!__smp_cross_call;
+	return true;
 }
 
 #endif /* __ASM_IRQ_WORK_H */
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 966ed30ed5f7..997cf8c8cd52 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -31,9 +31,21 @@
  * interrupt disabling temporarily does not rely on IRQ priorities.
  */
 #define GIC_PRIO_IRQON			0xe0
-#define GIC_PRIO_IRQOFF			(GIC_PRIO_IRQON & ~0x80)
+#define __GIC_PRIO_IRQOFF		(GIC_PRIO_IRQON & ~0x80)
+#define __GIC_PRIO_IRQOFF_NS		0xa0
 #define GIC_PRIO_PSR_I_SET		(1 << 4)
 
+#define GIC_PRIO_IRQOFF							\
+	({								\
+		extern struct static_key_false gic_nonsecure_priorities;\
+		u8 __prio = __GIC_PRIO_IRQOFF;				\
+									\
+		if (static_branch_unlikely(&gic_nonsecure_priorities))	\
+			__prio = __GIC_PRIO_IRQOFF_NS;			\
+									\
+		__prio;							\
+	})
+
 /* Additional SPSR bits not exposed in the UABI */
 #define PSR_MODE_THREAD_BIT	(1 << 0)
 #define PSR_IL_BIT		(1 << 20)
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index 0eadbf933e35..2e7f529ec5a6 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -56,27 +56,15 @@ static inline void set_cpu_logical_map(int cpu, u64 hwid)
 struct seq_file;
 
 /*
- * generate IPI list text
- */
-extern void show_ipi_list(struct seq_file *p, int prec);
-
-/*
- * Called from C code, this handles an IPI.
- */
-extern void handle_IPI(int ipinr, struct pt_regs *regs);
-
-/*
  * Discover the set of possible CPUs and determine their
  * SMP operations.
  */
 extern void smp_init_cpus(void);
 
 /*
- * Provide a function to raise an IPI cross call on CPUs in callmap.
+ * Register IPI interrupts with the arch SMP code
  */
-extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
-
-extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
+extern void set_smp_ipi_range(int ipi_base, int nr_ipi);
 
 /*
  * Called from the secondary holding pen, this is the secondary CPU entry point.