diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2007-10-17 11:58:43 +0200 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2007-10-17 19:28:48 +0200 |
commit | f3e8d1da389fe2e514e31f6e93c690c8e1243849 (patch) | |
tree | 75ed85948d11f14c1ea6f483333a365af588955c /arch/mips/au1000/common | |
parent | [MIPS] MTX1: Enable CONFIG_CROSSCOMPILE in defconfig. (diff) | |
download | linux-f3e8d1da389fe2e514e31f6e93c690c8e1243849.tar.xz linux-f3e8d1da389fe2e514e31f6e93c690c8e1243849.zip |
[MIPS] Alchemy: Fix build by conversion to irq_cpu.c.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/au1000/common')
-rw-r--r-- | arch/mips/au1000/common/irq.c | 251 |
1 files changed, 132 insertions, 119 deletions
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c index c00f308fd505..59e932a928d2 100644 --- a/arch/mips/au1000/common/irq.c +++ b/arch/mips/au1000/common/irq.c @@ -1,11 +1,10 @@ /* - * BRIEF MODULE DESCRIPTION - * Au1000 interrupt routines. - * * Copyright 2001 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * + * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org) + * * 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 @@ -32,6 +31,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> +#include <asm/irq_cpu.h> #include <asm/mipsregs.h> #include <asm/mach-au1x00/au1000.h> #ifdef CONFIG_MIPS_PB1000 @@ -44,7 +44,7 @@ #define EXT_INTC1_REQ1 5 /* IP 5 */ #define MIPS_TIMER_IP 7 /* IP 7 */ -void (*board_init_irq)(void); +void (*board_init_irq)(void) __initdata = NULL; static DEFINE_SPINLOCK(irq_lock); @@ -134,12 +134,14 @@ void restore_au1xxx_intctl(void) inline void local_enable_irq(unsigned int irq_nr) { - if (irq_nr > AU1000_LAST_INTC0_INT) { - au_writel(1 << (irq_nr - 32), IC1_MASKSET); - au_writel(1 << (irq_nr - 32), IC1_WAKESET); + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + if (bit >= 32) { + au_writel(1 << (bit - 32), IC1_MASKSET); + au_writel(1 << (bit - 32), IC1_WAKESET); } else { - au_writel(1 << irq_nr, IC0_MASKSET); - au_writel(1 << irq_nr, IC0_WAKESET); + au_writel(1 << bit, IC0_MASKSET); + au_writel(1 << bit, IC0_WAKESET); } au_sync(); } @@ -147,12 +149,14 @@ inline void local_enable_irq(unsigned int irq_nr) inline void local_disable_irq(unsigned int irq_nr) { - if (irq_nr > AU1000_LAST_INTC0_INT) { - au_writel(1 << (irq_nr - 32), IC1_MASKCLR); - au_writel(1 << (irq_nr - 32), IC1_WAKECLR); + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + if (bit >= 32) { + au_writel(1 << (bit - 32), IC1_MASKCLR); + au_writel(1 << (bit - 32), IC1_WAKECLR); } else { - au_writel(1 << irq_nr, IC0_MASKCLR); - au_writel(1 << irq_nr, IC0_WAKECLR); + au_writel(1 << bit, IC0_MASKCLR); + au_writel(1 << bit, IC0_WAKECLR); } au_sync(); } @@ -160,12 +164,14 @@ inline void local_disable_irq(unsigned int irq_nr) static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr) { - if (irq_nr > AU1000_LAST_INTC0_INT) { - au_writel(1 << (irq_nr - 32), IC1_RISINGCLR); - au_writel(1 << (irq_nr - 32), IC1_MASKCLR); + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + if (bit >= 32) { + au_writel(1 << (bit - 32), IC1_RISINGCLR); + au_writel(1 << (bit - 32), IC1_MASKCLR); } else { - au_writel(1 << irq_nr, IC0_RISINGCLR); - au_writel(1 << irq_nr, IC0_MASKCLR); + au_writel(1 << bit, IC0_RISINGCLR); + au_writel(1 << bit, IC0_MASKCLR); } au_sync(); } @@ -173,12 +179,14 @@ static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr) static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr) { - if (irq_nr > AU1000_LAST_INTC0_INT) { - au_writel(1 << (irq_nr - 32), IC1_FALLINGCLR); - au_writel(1 << (irq_nr - 32), IC1_MASKCLR); + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + if (bit >= 32) { + au_writel(1 << (bit - 32), IC1_FALLINGCLR); + au_writel(1 << (bit - 32), IC1_MASKCLR); } else { - au_writel(1 << irq_nr, IC0_FALLINGCLR); - au_writel(1 << irq_nr, IC0_MASKCLR); + au_writel(1 << bit, IC0_FALLINGCLR); + au_writel(1 << bit, IC0_MASKCLR); } au_sync(); } @@ -186,17 +194,20 @@ static inline void mask_and_ack_fall_edge_irq(unsigned int irq_nr) static inline void mask_and_ack_either_edge_irq(unsigned int irq_nr) { - /* This may assume that we don't get interrupts from + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + /* + * This may assume that we don't get interrupts from * both edges at once, or if we do, that we don't care. */ - if (irq_nr > AU1000_LAST_INTC0_INT) { - au_writel(1 << (irq_nr - 32), IC1_FALLINGCLR); - au_writel(1 << (irq_nr - 32), IC1_RISINGCLR); - au_writel(1 << (irq_nr - 32), IC1_MASKCLR); + if (bit >= 32) { + au_writel(1 << (bit - 32), IC1_FALLINGCLR); + au_writel(1 << (bit - 32), IC1_RISINGCLR); + au_writel(1 << (bit - 32), IC1_MASKCLR); } else { - au_writel(1 << irq_nr, IC0_FALLINGCLR); - au_writel(1 << irq_nr, IC0_RISINGCLR); - au_writel(1 << irq_nr, IC0_MASKCLR); + au_writel(1 << bit, IC0_FALLINGCLR); + au_writel(1 << bit, IC0_RISINGCLR); + au_writel(1 << bit, IC0_MASKCLR); } au_sync(); } @@ -213,10 +224,8 @@ static inline void mask_and_ack_level_irq(unsigned int irq_nr) au_sync(); } #endif - return; } - static void end_irq(unsigned int irq_nr) { if (!(irq_desc[irq_nr].status & (IRQ_DISABLED | IRQ_INPROGRESS))) @@ -341,114 +350,118 @@ void startup_match20_interrupt(irq_handler_t handler) } #endif -static void setup_local_irq(unsigned int irq_nr, int type, int int_req) +static void __init setup_local_irq(unsigned int irq_nr, int type, int int_req) { - if (irq_nr > AU1000_MAX_INTR) return; + unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE; + + if (irq_nr > AU1000_MAX_INTR) + return; + /* Config2[n], Config1[n], Config0[n] */ - if (irq_nr > AU1000_LAST_INTC0_INT) { + if (bit >= 32) { switch (type) { case INTC_INT_RISE_EDGE: /* 0:0:1 */ - au_writel(1 << (irq_nr - 32), IC1_CFG2CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG1CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG0SET); + au_writel(1 << (bit - 32), IC1_CFG2CLR); + au_writel(1 << (bit - 32), IC1_CFG1CLR); + au_writel(1 << (bit - 32), IC1_CFG0SET); set_irq_chip(irq_nr, &rise_edge_irq_type); break; case INTC_INT_FALL_EDGE: /* 0:1:0 */ - au_writel(1 << (irq_nr - 32), IC1_CFG2CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG1SET); - au_writel(1 << (irq_nr - 32), IC1_CFG0CLR); + au_writel(1 << (bit - 32), IC1_CFG2CLR); + au_writel(1 << (bit - 32), IC1_CFG1SET); + au_writel(1 << (bit - 32), IC1_CFG0CLR); set_irq_chip(irq_nr, &fall_edge_irq_type); break; case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */ - au_writel(1 << (irq_nr - 32), IC1_CFG2CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG1SET); - au_writel(1 << (irq_nr - 32), IC1_CFG0SET); + au_writel(1 << (bit - 32), IC1_CFG2CLR); + au_writel(1 << (bit - 32), IC1_CFG1SET); + au_writel(1 << (bit - 32), IC1_CFG0SET); set_irq_chip(irq_nr, &either_edge_irq_type); break; case INTC_INT_HIGH_LEVEL: /* 1:0:1 */ - au_writel(1 << (irq_nr - 32), IC1_CFG2SET); - au_writel(1 << (irq_nr - 32), IC1_CFG1CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG0SET); + au_writel(1 << (bit - 32), IC1_CFG2SET); + au_writel(1 << (bit - 32), IC1_CFG1CLR); + au_writel(1 << (bit - 32), IC1_CFG0SET); set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_LOW_LEVEL: /* 1:1:0 */ - au_writel(1 << (irq_nr - 32), IC1_CFG2SET); - au_writel(1 << (irq_nr - 32), IC1_CFG1SET); - au_writel(1 << (irq_nr - 32), IC1_CFG0CLR); + au_writel(1 << (bit - 32), IC1_CFG2SET); + au_writel(1 << (bit - 32), IC1_CFG1SET); + au_writel(1 << (bit - 32), IC1_CFG0CLR); set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_DISABLED: /* 0:0:0 */ - au_writel(1 << (irq_nr - 32), IC1_CFG0CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG1CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG2CLR); + au_writel(1 << (bit - 32), IC1_CFG0CLR); + au_writel(1 << (bit - 32), IC1_CFG1CLR); + au_writel(1 << (bit - 32), IC1_CFG2CLR); break; default: /* disable the interrupt */ printk(KERN_WARNING "unexpected int type %d (irq %d)\n", type, irq_nr); - au_writel(1 << (irq_nr - 32), IC1_CFG0CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG1CLR); - au_writel(1 << (irq_nr - 32), IC1_CFG2CLR); + au_writel(1 << (bit - 32), IC1_CFG0CLR); + au_writel(1 << (bit - 32), IC1_CFG1CLR); + au_writel(1 << (bit - 32), IC1_CFG2CLR); return; } if (int_req) /* assign to interrupt request 1 */ - au_writel(1 << (irq_nr - 32), IC1_ASSIGNCLR); + au_writel(1 << (bit - 32), IC1_ASSIGNCLR); else /* assign to interrupt request 0 */ - au_writel(1 << (irq_nr - 32), IC1_ASSIGNSET); - au_writel(1 << (irq_nr - 32), IC1_SRCSET); - au_writel(1 << (irq_nr - 32), IC1_MASKCLR); - au_writel(1 << (irq_nr - 32), IC1_WAKECLR); + au_writel(1 << (bit - 32), IC1_ASSIGNSET); + au_writel(1 << (bit - 32), IC1_SRCSET); + au_writel(1 << (bit - 32), IC1_MASKCLR); + au_writel(1 << (bit - 32), IC1_WAKECLR); } else { switch (type) { case INTC_INT_RISE_EDGE: /* 0:0:1 */ - au_writel(1 << irq_nr, IC0_CFG2CLR); - au_writel(1 << irq_nr, IC0_CFG1CLR); - au_writel(1 << irq_nr, IC0_CFG0SET); + au_writel(1 << bit, IC0_CFG2CLR); + au_writel(1 << bit, IC0_CFG1CLR); + au_writel(1 << bit, IC0_CFG0SET); set_irq_chip(irq_nr, &rise_edge_irq_type); break; case INTC_INT_FALL_EDGE: /* 0:1:0 */ - au_writel(1 << irq_nr, IC0_CFG2CLR); - au_writel(1 << irq_nr, IC0_CFG1SET); - au_writel(1 << irq_nr, IC0_CFG0CLR); + au_writel(1 << bit, IC0_CFG2CLR); + au_writel(1 << bit, IC0_CFG1SET); + au_writel(1 << bit, IC0_CFG0CLR); set_irq_chip(irq_nr, &fall_edge_irq_type); break; case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */ - au_writel(1 << irq_nr, IC0_CFG2CLR); - au_writel(1 << irq_nr, IC0_CFG1SET); - au_writel(1 << irq_nr, IC0_CFG0SET); + au_writel(1 << bit, IC0_CFG2CLR); + au_writel(1 << bit, IC0_CFG1SET); + au_writel(1 << bit, IC0_CFG0SET); set_irq_chip(irq_nr, &either_edge_irq_type); break; case INTC_INT_HIGH_LEVEL: /* 1:0:1 */ - au_writel(1 << irq_nr, IC0_CFG2SET); - au_writel(1 << irq_nr, IC0_CFG1CLR); - au_writel(1 << irq_nr, IC0_CFG0SET); + au_writel(1 << bit, IC0_CFG2SET); + au_writel(1 << bit, IC0_CFG1CLR); + au_writel(1 << bit, IC0_CFG0SET); set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_LOW_LEVEL: /* 1:1:0 */ - au_writel(1 << irq_nr, IC0_CFG2SET); - au_writel(1 << irq_nr, IC0_CFG1SET); - au_writel(1 << irq_nr, IC0_CFG0CLR); + au_writel(1 << bit, IC0_CFG2SET); + au_writel(1 << bit, IC0_CFG1SET); + au_writel(1 << bit, IC0_CFG0CLR); set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_DISABLED: /* 0:0:0 */ - au_writel(1 << irq_nr, IC0_CFG0CLR); - au_writel(1 << irq_nr, IC0_CFG1CLR); - au_writel(1 << irq_nr, IC0_CFG2CLR); + au_writel(1 << bit, IC0_CFG0CLR); + au_writel(1 << bit, IC0_CFG1CLR); + au_writel(1 << bit, IC0_CFG2CLR); break; default: /* disable the interrupt */ printk(KERN_WARNING "unexpected int type %d (irq %d)\n", type, irq_nr); - au_writel(1 << irq_nr, IC0_CFG0CLR); - au_writel(1 << irq_nr, IC0_CFG1CLR); - au_writel(1 << irq_nr, IC0_CFG2CLR); + au_writel(1 << bit, IC0_CFG0CLR); + au_writel(1 << bit, IC0_CFG1CLR); + au_writel(1 << bit, IC0_CFG2CLR); return; } if (int_req) /* assign to interrupt request 1 */ - au_writel(1 << irq_nr, IC0_ASSIGNCLR); + au_writel(1 << bit, IC0_ASSIGNCLR); else /* assign to interrupt request 0 */ - au_writel(1 << irq_nr, IC0_ASSIGNSET); - au_writel(1 << irq_nr, IC0_SRCSET); - au_writel(1 << irq_nr, IC0_MASKCLR); - au_writel(1 << irq_nr, IC0_WAKECLR); + au_writel(1 << bit, IC0_ASSIGNSET); + au_writel(1 << bit, IC0_SRCSET); + au_writel(1 << bit, IC0_MASKCLR); + au_writel(1 << bit, IC0_WAKECLR); } au_sync(); } @@ -461,8 +474,8 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req) static void intc0_req0_irqdispatch(void) { - int irq = 0; static unsigned long intc0_req0; + unsigned int bit; intc0_req0 |= au_readl(IC0_REQ0INT); @@ -481,25 +494,25 @@ static void intc0_req0_irqdispatch(void) return; } #endif - irq = ffs(intc0_req0); - intc0_req0 &= ~(1 << irq); - do_IRQ(irq); + bit = ffs(intc0_req0); + intc0_req0 &= ~(1 << bit); + do_IRQ(MIPS_CPU_IRQ_BASE + bit); } static void intc0_req1_irqdispatch(void) { - int irq = 0; static unsigned long intc0_req1; + unsigned int bit; intc0_req1 |= au_readl(IC0_REQ1INT); if (!intc0_req1) return; - irq = ffs(intc0_req1); - intc0_req1 &= ~(1 << irq); - do_IRQ(irq); + bit = ffs(intc0_req1); + intc0_req1 &= ~(1 << bit); + do_IRQ(bit); } @@ -509,43 +522,41 @@ static void intc0_req1_irqdispatch(void) */ static void intc1_req0_irqdispatch(void) { - int irq = 0; static unsigned long intc1_req0; + unsigned int bit; intc1_req0 |= au_readl(IC1_REQ0INT); if (!intc1_req0) return; - irq = ffs(intc1_req0); - intc1_req0 &= ~(1 << irq); - irq += 32; - do_IRQ(irq); + bit = ffs(intc1_req0); + intc1_req0 &= ~(1 << bit); + do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit); } static void intc1_req1_irqdispatch(void) { - int irq = 0; static unsigned long intc1_req1; + unsigned int bit; intc1_req1 |= au_readl(IC1_REQ1INT); if (!intc1_req1) return; - irq = ffs(intc1_req1); - intc1_req1 &= ~(1 << irq); - irq += 32; - do_IRQ(irq); + bit = ffs(intc1_req1); + intc1_req1 &= ~(1 << bit); + do_IRQ(MIPS_CPU_IRQ_BASE + 32 + bit); } asmlinkage void plat_irq_dispatch(void) { - unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM; + unsigned int pending = read_c0_status() & read_c0_cause(); if (pending & CAUSEF_IP7) - do_IRQ(63); + do_IRQ(MIPS_CPU_IRQ_BASE + 7); else if (pending & CAUSEF_IP2) intc0_req0_irqdispatch(); else if (pending & CAUSEF_IP3) @@ -561,17 +572,15 @@ asmlinkage void plat_irq_dispatch(void) void __init arch_init_irq(void) { int i; - unsigned long cp0_status; struct au1xxx_irqmap *imp; extern struct au1xxx_irqmap au1xxx_irq_map[]; extern struct au1xxx_irqmap au1xxx_ic0_map[]; extern int au1xxx_nr_irqs; extern int au1xxx_ic0_nr_irqs; - cp0_status = read_c0_status(); - - /* Initialize interrupt controllers to a safe state. - */ + /* + * Initialize interrupt controllers to a safe state. + */ au_writel(0xffffffff, IC0_CFG0CLR); au_writel(0xffffffff, IC0_CFG1CLR); au_writel(0xffffffff, IC0_CFG2CLR); @@ -594,16 +603,20 @@ void __init arch_init_irq(void) au_writel(0xffffffff, IC1_RISINGCLR); au_writel(0x00000000, IC1_TESTBIT); - /* Initialize IC0, which is fixed per processor. - */ + mips_cpu_irq_init(); + + /* + * Initialize IC0, which is fixed per processor. + */ imp = au1xxx_ic0_map; for (i = 0; i < au1xxx_ic0_nr_irqs; i++) { setup_local_irq(imp->im_irq, imp->im_type, imp->im_request); imp++; } - /* Now set up the irq mapping for the board. - */ + /* + * Now set up the irq mapping for the board. + */ imp = au1xxx_irq_map; for (i = 0; i < au1xxx_nr_irqs; i++) { setup_local_irq(imp->im_irq, imp->im_type, imp->im_request); @@ -615,5 +628,5 @@ void __init arch_init_irq(void) /* Board specific IRQ initialization. */ if (board_init_irq) - (*board_init_irq)(); + board_init_irq(); } |