select ARCH_PHYS_ADDR_T_64BIT
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select DMA_NONCOHERENT
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select NO_EXCEPT_FILL
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select IRQ_DOMAIN
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_BIG_ENDIAN
select DMA_NONCOHERENT
select HAVE_CLK
select CLKDEV_LOOKUP
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select MIPS_MACHINE
select SYS_HAS_CPU_MIPS32_R2
select SYS_HAS_EARLY_PRINTK
select BCM7038_L1_IRQ
select BCM7120_L2_IRQ
select BRCMSTB_L2_IRQ
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select RAW_IRQ_ACCESSORS
select DMA_NONCOHERENT
select SYS_SUPPORTS_32BIT_KERNEL
select CSRC_R4K
select DMA_NONCOHERENT
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_HAS_CPU_MIPS32_R1
select NO_EXCEPT_FILL
select SYS_SUPPORTS_32BIT_KERNEL
select CSRC_R4K
select SYNC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_HAS_EARLY_PRINTK
select HW_HAS_PCI
select I8253
select I8259
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select IRQ_GT641XX
select PCI_GT64XXX_PCI0
select PCI
select CPU_R4400_WORKAROUNDS if 64BIT
select DMA_NONCOHERENT
select NO_IOPORT_MAP
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_HAS_CPU_R3000
select SYS_HAS_CPU_R4X00
select SYS_SUPPORTS_32BIT_KERNEL
select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
select GENERIC_ISA_DMA
select HAVE_PCSPKR_PLATFORM
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select I8253
select I8259
select ISA
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_ZBOOT_UART16550
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ARCH_REQUIRE_GPIOLIB
select SYS_HAS_EARLY_PRINTK
select HAVE_CLK
config LANTIQ
bool "Lantiq based platforms"
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select CEVT_R4K
select CSRC_R4K
select SYS_HAS_CPU_MIPS32_R1
select DMA_NONCOHERENT
select SYS_HAS_EARLY_PRINTK
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select PCI_GT64XXX_PCI0
select MIPS_NILE4
select R5000_CPU_SCACHE
select COMMON_CLK
select CSRC_R4K
select DMA_MAYBE_COHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select LIBFDT
select MFD_SYSCON
select MIPS_CPU_SCACHE
select DMA_MAYBE_COHERENT
select GENERIC_ISA_DMA
select HAVE_PCSPKR_PLATFORM
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select MIPS_GIC
select HW_HAS_PCI
select I8253
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select MIPS_GIC
select LIBFDT
select MIPS_MSC
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SERIAL_8250
select SERIAL_8250_CONSOLE
select USB_EHCI_BIG_ENDIAN_MMIO
select CSRC_R4K
select BOOT_RAW
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select USE_OF
select SYS_HAS_CPU_MIPS32_R1
select SYS_HAS_CPU_MIPS32_R2
select I8253
select I8259
select IP22_CPU_SCACHE
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select GENERIC_ISA_DMA_SUPPORT_BROKEN
select SGI_HAS_I8042
select SGI_HAS_INDYDOG
select DEFAULT_SGI_PARTITION
select DMA_NONCOHERENT
select GENERIC_ISA_DMA_SUPPORT_BROKEN
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select HW_HAS_EISA
select I8253
select I8259
select CSRC_R4K
select DMA_NONCOHERENT
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select R5000_CPU_SCACHE
select RM7000_CPU_SCACHE
select SYS_HAS_CPU_R5000
select HAVE_PCSPKR_PLATFORM
select HW_HAS_EISA
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select I8253
select I8259
select ISA
select CSRC_R4K
select DMA_NONCOHERENT
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select NR_CPUS_DEFAULT_32
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ZONE_DMA32 if 64BIT
select SYNC_R4K
select SYS_HAS_EARLY_PRINTK
select NR_CPUS_DEFAULT_32
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ZONE_DMA32 if 64BIT
select SYNC_R4K
select SYS_HAS_EARLY_PRINTK
config MIPS_HUGE_TLB_SUPPORT
def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
-config IRQ_CPU
- bool
- select IRQ_DOMAIN
-
config IRQ_CPU_RM7K
bool
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SWAP_IO_SPACE
select SYS_HAS_CPU_R5500
select SYS_SUPPORTS_32BIT_KERNEL
bool
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select DMA_NONCOHERENT
select SYS_HAS_CPU_MIPS32_R2
select SYS_SUPPORTS_32BIT_KERNEL
select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
select CPU_SUPPORTS_32BIT_KERNEL
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SWAP_IO_SPACE
select WEAK_ORDERING
select CPU_SUPPORTS_HIGHMEM
" .set push \n"
" .set noreorder \n"
" .set noat \n"
-#if defined(CONFIG_IRQ_CPU)
+#if defined(CONFIG_IRQ_MIPS_CPU)
/*
* Slow, but doesn't suffer from a relatively unlikely race
* condition we're having since days 1.
" .set push \n"
" .set noreorder \n"
" .set noat \n"
-#if defined(CONFIG_IRQ_CPU)
+#if defined(CONFIG_IRQ_MIPS_CPU)
/*
* Slow, but doesn't suffer from a relatively unlikely race
* condition we're having since days 1.
#endif
#endif
-#ifdef CONFIG_IRQ_CPU
+#ifdef CONFIG_IRQ_MIPS_CPU
#ifndef MIPS_CPU_IRQ_BASE
#ifdef CONFIG_I8259
#endif
#endif
-#endif /* CONFIG_IRQ_CPU */
+#endif /* CONFIG_IRQ_MIPS_CPU */
#ifdef CONFIG_MIPS_GIC
#ifndef MIPS_GIC_IRQ_BASE
#include <irq.h>
-#ifdef CONFIG_IRQ_CPU
+#ifdef CONFIG_IRQ_MIPS_CPU
#define TXX9_IRQ_BASE (MIPS_CPU_IRQ_BASE + 8)
#else
#ifdef CONFIG_I8259
obj-$(CONFIG_MIPS_VPE_APSP_API_MT) += rtlx-mt.o
obj-$(CONFIG_I8259) += i8259.o
-obj-$(CONFIG_IRQ_CPU) += irq_cpu.o
obj-$(CONFIG_IRQ_CPU_RM7K) += irq-rm7000.o
obj-$(CONFIG_MIPS_MSC) += irq-msc01.o
obj-$(CONFIG_IRQ_TXX9) += irq_txx9.o
+++ /dev/null
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
- *
- * Copyright (C) 2001 Ralf Baechle
- * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
- * Author: Maciej W. Rozycki <macro@mips.com>
- *
- * This file define the irq handler for MIPS CPU interrupts.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-/*
- * Almost all MIPS CPUs define 8 interrupt sources. They are typically
- * level triggered (i.e., cannot be cleared from CPU; must be cleared from
- * device). The first two are software interrupts which we don't really
- * use or support. The last one is usually the CPU timer interrupt if
- * counter register is present or, for CPUs with an external FPU, by
- * convention it's the FPU exception interrupt.
- *
- * Don't even think about using this on SMP. You have been warned.
- *
- * This file exports one global function:
- * void mips_cpu_irq_init(void);
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-#include <asm/mipsmtregs.h>
-#include <asm/setup.h>
-
-static inline void unmask_mips_irq(struct irq_data *d)
-{
- set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- irq_enable_hazard();
-}
-
-static inline void mask_mips_irq(struct irq_data *d)
-{
- clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- irq_disable_hazard();
-}
-
-static struct irq_chip mips_cpu_irq_controller = {
- .name = "MIPS",
- .irq_ack = mask_mips_irq,
- .irq_mask = mask_mips_irq,
- .irq_mask_ack = mask_mips_irq,
- .irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
- .irq_disable = mask_mips_irq,
- .irq_enable = unmask_mips_irq,
-};
-
-/*
- * Basically the same as above but taking care of all the MT stuff
- */
-
-static unsigned int mips_mt_cpu_irq_startup(struct irq_data *d)
-{
- unsigned int vpflags = dvpe();
-
- clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- evpe(vpflags);
- unmask_mips_irq(d);
- return 0;
-}
-
-/*
- * While we ack the interrupt interrupts are disabled and thus we don't need
- * to deal with concurrency issues. Same for mips_cpu_irq_end.
- */
-static void mips_mt_cpu_irq_ack(struct irq_data *d)
-{
- unsigned int vpflags = dvpe();
- clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
- evpe(vpflags);
- mask_mips_irq(d);
-}
-
-static struct irq_chip mips_mt_cpu_irq_controller = {
- .name = "MIPS",
- .irq_startup = mips_mt_cpu_irq_startup,
- .irq_ack = mips_mt_cpu_irq_ack,
- .irq_mask = mask_mips_irq,
- .irq_mask_ack = mips_mt_cpu_irq_ack,
- .irq_unmask = unmask_mips_irq,
- .irq_eoi = unmask_mips_irq,
- .irq_disable = mask_mips_irq,
- .irq_enable = unmask_mips_irq,
-};
-
-asmlinkage void __weak plat_irq_dispatch(void)
-{
- unsigned long pending = read_c0_cause() & read_c0_status() & ST0_IM;
- int irq;
-
- if (!pending) {
- spurious_interrupt();
- return;
- }
-
- pending >>= CAUSEB_IP;
- while (pending) {
- irq = fls(pending) - 1;
- do_IRQ(MIPS_CPU_IRQ_BASE + irq);
- pending &= ~BIT(irq);
- }
-}
-
-static int mips_cpu_intc_map(struct irq_domain *d, unsigned int irq,
- irq_hw_number_t hw)
-{
- static struct irq_chip *chip;
-
- if (hw < 2 && cpu_has_mipsmt) {
- /* Software interrupts are used for MT/CMT IPI */
- chip = &mips_mt_cpu_irq_controller;
- } else {
- chip = &mips_cpu_irq_controller;
- }
-
- if (cpu_has_vint)
- set_vi_handler(hw, plat_irq_dispatch);
-
- irq_set_chip_and_handler(irq, chip, handle_percpu_irq);
-
- return 0;
-}
-
-static const struct irq_domain_ops mips_cpu_intc_irq_domain_ops = {
- .map = mips_cpu_intc_map,
- .xlate = irq_domain_xlate_onecell,
-};
-
-static void __init __mips_cpu_irq_init(struct device_node *of_node)
-{
- struct irq_domain *domain;
-
- /* Mask interrupts. */
- clear_c0_status(ST0_IM);
- clear_c0_cause(CAUSEF_IP);
-
- domain = irq_domain_add_legacy(of_node, 8, MIPS_CPU_IRQ_BASE, 0,
- &mips_cpu_intc_irq_domain_ops, NULL);
- if (!domain)
- panic("Failed to add irqdomain for MIPS CPU");
-}
-
-void __init mips_cpu_irq_init(void)
-{
- __mips_cpu_irq_init(NULL);
-}
-
-int __init mips_cpu_irq_of_init(struct device_node *of_node,
- struct device_node *parent)
-{
- __mips_cpu_irq_init(of_node);
- return 0;
-}
select HW_HAS_PCI
select I8259
select ISA
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select HAVE_CLK
select HW_HAS_PCI
select I8259
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ISA
select SYS_HAS_CPU_LOONGSON2F
select SYS_HAS_EARLY_PRINTK
select ISA
select HT_PCI
select I8259
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select NR_CPUS_DEFAULT_4
select SYS_HAS_CPU_LOONGSON3
select SYS_HAS_EARLY_PRINTK
select SYS_HAS_CPU_LOONGSON1B
select DMA_NONCOHERENT
select BOOT_ELF32
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select SYS_SUPPORTS_HIGHMEM
select CEVT_SB1250
select CSRC_SB1250
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_ENABLE_LDT_IF_PCI
select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
bool
select CEVT_SB1250
select CSRC_SB1250
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_BCM112X
select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
select CEVT_SB1250
select CSRC_SB1250
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_BCM112X
select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
select CEVT_SB1250
select CSRC_SB1250
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_BCM112X
select SIBYTE_ENABLE_LDT_IF_PCI
select SIBYTE_HAS_ZBUS_PROFILING
bool
select CEVT_SB1250
select CSRC_SB1250
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_SB1xxx_SOC
select SIBYTE_HAS_ZBUS_PROFILING
select CEVT_BCM1480
select CSRC_BCM1480
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_HAS_ZBUS_PROFILING
select SIBYTE_SB1xxx_SOC
select SYS_SUPPORTS_SMP
select CEVT_BCM1480
select CSRC_BCM1480
select HW_HAS_PCI
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SIBYTE_SB1xxx_SOC
select SIBYTE_HAS_ZBUS_PROFILING
select SYS_SUPPORTS_SMP
config SIBYTE_SB1xxx_SOC
bool
select DMA_COHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SWAP_IO_SPACE
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_64BIT_KERNEL
select MACH_TXX9
select CEVT_R4K
select CSRC_R4K
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select SYS_HAS_CPU_TX49XX
select SYS_SUPPORTS_64BIT_KERNEL
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ISA
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select ISA
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select HW_HAS_PCI
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select HW_HAS_PCI
select PCI_VR41XX
select SYS_SUPPORTS_32BIT_KERNEL
select CEVT_R4K
select CSRC_R4K
select DMA_NONCOHERENT
- select IRQ_CPU
+ select IRQ_MIPS_CPU
select HW_HAS_PCI
select PCI_VR41XX
select SYS_SUPPORTS_32BIT_KERNEL
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
+config IRQ_MIPS_CPU
+ bool
+ select GENERIC_IRQ_CHIP
+ select IRQ_DOMAIN
+
config CLPS711X_IRQCHIP
bool
depends on ARCH_CLPS711X
obj-$(CONFIG_ATMEL_AIC_IRQ) += irq-atmel-aic-common.o irq-atmel-aic.o
obj-$(CONFIG_ATMEL_AIC5_IRQ) += irq-atmel-aic-common.o irq-atmel-aic5.o
obj-$(CONFIG_IMGPDC_IRQ) += irq-imgpdc.o
+obj-$(CONFIG_IRQ_MIPS_CPU) += irq-mips-cpu.o
obj-$(CONFIG_SIRF_IRQ) += irq-sirfsoc.o
obj-$(CONFIG_RENESAS_INTC_IRQPIN) += irq-renesas-intc-irqpin.o
obj-$(CONFIG_RENESAS_IRQC) += irq-renesas-irqc.o
--- /dev/null
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright (C) 2001 Ralf Baechle
+ * Copyright (C) 2005 MIPS Technologies, Inc. All rights reserved.
+ * Author: Maciej W. Rozycki <macro@mips.com>
+ *
+ * This file define the irq handler for MIPS CPU interrupts.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/*
+ * Almost all MIPS CPUs define 8 interrupt sources. They are typically
+ * level triggered (i.e., cannot be cleared from CPU; must be cleared from
+ * device). The first two are software interrupts which we don't really
+ * use or support. The last one is usually the CPU timer interrupt if
+ * counter register is present or, for CPUs with an external FPU, by
+ * convention it's the FPU exception interrupt.
+ *
+ * Don't even think about using this on SMP. You have been warned.
+ *
+ * This file exports one global function:
+ * void mips_cpu_irq_init(void);
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+#include <asm/mipsmtregs.h>
+#include <asm/setup.h>
+
+static inline void unmask_mips_irq(struct irq_data *d)
+{
+ set_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+ irq_enable_hazard();
+}
+
+static inline void mask_mips_irq(struct irq_data *d)
+{
+ clear_c0_status(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+ irq_disable_hazard();
+}
+
+static struct irq_chip mips_cpu_irq_controller = {
+ .name = "MIPS",
+ .irq_ack = mask_mips_irq,
+ .irq_mask = mask_mips_irq,
+ .irq_mask_ack = mask_mips_irq,
+ .irq_unmask = unmask_mips_irq,
+ .irq_eoi = unmask_mips_irq,
+ .irq_disable = mask_mips_irq,
+ .irq_enable = unmask_mips_irq,
+};
+
+/*
+ * Basically the same as above but taking care of all the MT stuff
+ */
+
+static unsigned int mips_mt_cpu_irq_startup(struct irq_data *d)
+{
+ unsigned int vpflags = dvpe();
+
+ clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+ evpe(vpflags);
+ unmask_mips_irq(d);
+ return 0;
+}
+
+/*
+ * While we ack the interrupt interrupts are disabled and thus we don't need
+ * to deal with concurrency issues. Same for mips_cpu_irq_end.
+ */
+static void mips_mt_cpu_irq_ack(struct irq_data *d)
+{
+ unsigned int vpflags = dvpe();
+ clear_c0_cause(0x100 << (d->irq - MIPS_CPU_IRQ_BASE));
+ evpe(vpflags);
+ mask_mips_irq(d);
+}
+
+static struct irq_chip mips_mt_cpu_irq_controller = {
+ .name = "MIPS",
+ .irq_startup = mips_mt_cpu_irq_startup,
+ .irq_ack = mips_mt_cpu_irq_ack,
+ .irq_mask = mask_mips_irq,
+ .irq_mask_ack = mips_mt_cpu_irq_ack,
+ .irq_unmask = unmask_mips_irq,
+ .irq_eoi = unmask_mips_irq,
+ .irq_disable = mask_mips_irq,
+ .irq_enable = unmask_mips_irq,
+};
+
+asmlinkage void __weak plat_irq_dispatch(void)
+{
+ unsigned long pending = read_c0_cause() & read_c0_status() & ST0_IM;
+ int irq;
+
+ if (!pending) {
+ spurious_interrupt();
+ return;
+ }
+
+ pending >>= CAUSEB_IP;
+ while (pending) {
+ irq = fls(pending) - 1;
+ do_IRQ(MIPS_CPU_IRQ_BASE + irq);
+ pending &= ~BIT(irq);
+ }
+}
+
+static int mips_cpu_intc_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hw)
+{
+ static struct irq_chip *chip;
+
+ if (hw < 2 && cpu_has_mipsmt) {
+ /* Software interrupts are used for MT/CMT IPI */
+ chip = &mips_mt_cpu_irq_controller;
+ } else {
+ chip = &mips_cpu_irq_controller;
+ }
+
+ if (cpu_has_vint)
+ set_vi_handler(hw, plat_irq_dispatch);
+
+ irq_set_chip_and_handler(irq, chip, handle_percpu_irq);
+
+ return 0;
+}
+
+static const struct irq_domain_ops mips_cpu_intc_irq_domain_ops = {
+ .map = mips_cpu_intc_map,
+ .xlate = irq_domain_xlate_onecell,
+};
+
+static void __init __mips_cpu_irq_init(struct device_node *of_node)
+{
+ struct irq_domain *domain;
+
+ /* Mask interrupts. */
+ clear_c0_status(ST0_IM);
+ clear_c0_cause(CAUSEF_IP);
+
+ domain = irq_domain_add_legacy(of_node, 8, MIPS_CPU_IRQ_BASE, 0,
+ &mips_cpu_intc_irq_domain_ops, NULL);
+ if (!domain)
+ panic("Failed to add irqdomain for MIPS CPU");
+}
+
+void __init mips_cpu_irq_init(void)
+{
+ __mips_cpu_irq_init(NULL);
+}
+
+int __init mips_cpu_irq_of_init(struct device_node *of_node,
+ struct device_node *parent)
+{
+ __mips_cpu_irq_init(of_node);
+ return 0;
+}
projects / linux-drm-fsl-dcu.git / commitdiff