diff options
Diffstat (limited to 'arch/mips/mips-boards')
| -rw-r--r-- | arch/mips/mips-boards/malta/malta_int.c | 2 | ||||
| -rw-r--r-- | arch/mips/mips-boards/malta/malta_smtc.c | 16 | ||||
| -rw-r--r-- | arch/mips/mips-boards/sim/sim_int.c | 88 |
3 files changed, 10 insertions, 96 deletions
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c index 97aeb8c..b73f218 100644 --- a/arch/mips/mips-boards/malta/malta_int.c +++ b/arch/mips/mips-boards/malta/malta_int.c @@ -256,7 +256,7 @@ asmlinkage void plat_irq_dispatch(void) if (irq == MIPSCPU_INT_I8259A) malta_hw0_irqdispatch(); - else if (irq > 0) + else if (irq >= 0) do_IRQ(MIPS_CPU_IRQ_BASE + irq); else spurious_interrupt(); diff --git a/arch/mips/mips-boards/malta/malta_smtc.c b/arch/mips/mips-boards/malta/malta_smtc.c index 0fb4c26..ae05d05 100644 --- a/arch/mips/mips-boards/malta/malta_smtc.c +++ b/arch/mips/mips-boards/malta/malta_smtc.c @@ -1,6 +1,7 @@ /* * Malta Platform-specific hooks for SMP operation */ +#include <linux/irq.h> #include <linux/init.h> #include <asm/mipsregs.h> @@ -24,7 +25,7 @@ void core_send_ipi(int cpu, unsigned int action) * Platform "CPU" startup hook */ -void prom_boot_secondary(int cpu, struct task_struct *idle) +void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle) { smtc_boot_secondary(cpu, idle); } @@ -33,7 +34,7 @@ void prom_boot_secondary(int cpu, struct task_struct *idle) * Post-config but pre-boot cleanup entry point */ -void prom_init_secondary(void) +void __cpuinit prom_init_secondary(void) { void smtc_init_secondary(void); int myvpe; @@ -42,10 +43,11 @@ void prom_init_secondary(void) myvpe = read_c0_tcbind() & TCBIND_CURVPE; if (myvpe != 0) { /* Ideally, this should be done only once per VPE, but... */ - clear_c0_status(STATUSF_IP2); - set_c0_status(STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP3 - | STATUSF_IP4 | STATUSF_IP5 | STATUSF_IP6 - | STATUSF_IP7); + clear_c0_status(ST0_IM); + set_c0_status((0x100 << cp0_compare_irq) + | (0x100 << MIPS_CPU_IPI_IRQ)); + if (cp0_perfcount_irq >= 0) + set_c0_status(0x100 << cp0_perfcount_irq); } smtc_init_secondary(); @@ -74,7 +76,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus) * SMP initialization finalization entry point */ -void prom_smp_finish(void) +void __cpuinit prom_smp_finish(void) { smtc_smp_finish(); } diff --git a/arch/mips/mips-boards/sim/sim_int.c b/arch/mips/mips-boards/sim/sim_int.c deleted file mode 100644 index 766e015..0000000 --- a/arch/mips/mips-boards/sim/sim_int.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 1999, 2005 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - */ -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <asm/mips-boards/simint.h> -#include <asm/irq_cpu.h> - -static inline int clz(unsigned long x) -{ - __asm__ ( - " .set push \n" - " .set mips32 \n" - " clz %0, %1 \n" - " .set pop \n" - : "=r" (x) - : "r" (x)); - - return x; -} - -/* - * Version of ffs that only looks at bits 12..15. - */ -static inline unsigned int irq_ffs(unsigned int pending) -{ -#if defined(CONFIG_CPU_MIPS32) || defined(CONFIG_CPU_MIPS64) - return -clz(pending) + 31 - CAUSEB_IP; -#else - unsigned int a0 = 7; - unsigned int t0; - - t0 = s0 & 0xf000; - t0 = t0 < 1; - t0 = t0 << 2; - a0 = a0 - t0; - s0 = s0 << t0; - - t0 = s0 & 0xc000; - t0 = t0 < 1; - t0 = t0 << 1; - a0 = a0 - t0; - s0 = s0 << t0; - - t0 = s0 & 0x8000; - t0 = t0 < 1; - //t0 = t0 << 2; - a0 = a0 - t0; - //s0 = s0 << t0; - - return a0; -#endif -} - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM; - int irq; - - irq = irq_ffs(pending); - - if (irq > 0) - do_IRQ(MIPS_CPU_IRQ_BASE + irq); - else - spurious_interrupt(); -} - -void __init arch_init_irq(void) -{ - mips_cpu_irq_init(); -} |
