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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-10-25 13:59:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-10-28 10:15:31 +0100 |
| commit | c97d4869a23c439d2bc23cb26c1147c099f9ff78 (patch) | |
| tree | f49760ef0b4a183dcd17ad77b7059e3163ec37ca /arch/arm | |
| parent | 858cbcdd4f7a235f609249b9ca681b7ec5d786a3 (diff) | |
| download | linux-stable-c97d4869a23c439d2bc23cb26c1147c099f9ff78.tar.gz linux-stable-c97d4869a23c439d2bc23cb26c1147c099f9ff78.tar.bz2 linux-stable-c97d4869a23c439d2bc23cb26c1147c099f9ff78.zip | |
[ARM] Fix SMP irqflags support
The IRQ changes a while back broke the build for SMP machines.
Fix up the SMP code to use set_irq_regs/get_irq_regs as
appropriate. Also, fix a warning in arch/arm/kernel/time.c
where 'regs' becomes unused for SMP builds.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kernel/smp.c | 20 | ||||
| -rw-r--r-- | arch/arm/kernel/time.c | 3 |
2 files changed, 14 insertions, 9 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 421329f5e18e..a07d202143c3 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -7,6 +7,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ +#include <linux/module.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/spinlock.h> @@ -19,6 +20,7 @@ #include <linux/cpu.h> #include <linux/smp.h> #include <linux/seq_file.h> +#include <linux/irq.h> #include <asm/atomic.h> #include <asm/cacheflush.h> @@ -474,25 +476,26 @@ void show_local_irqs(struct seq_file *p) seq_putc(p, '\n'); } -static void ipi_timer(struct pt_regs *regs) +static void ipi_timer(void) { - int user = user_mode(regs); - irq_enter(); - profile_tick(CPU_PROFILING, regs); - update_process_times(user); + profile_tick(CPU_PROFILING); + update_process_times(user_mode(get_irq_regs())); irq_exit(); } #ifdef CONFIG_LOCAL_TIMERS asmlinkage void do_local_timer(struct pt_regs *regs) { + struct pt_regs *old_regs = set_irq_regs(regs); int cpu = smp_processor_id(); if (local_timer_ack()) { irq_stat[cpu].local_timer_irqs++; - ipi_timer(regs); + ipi_timer(); } + + set_irq_regs(old_regs); } #endif @@ -551,6 +554,7 @@ asmlinkage void do_IPI(struct pt_regs *regs) { unsigned int cpu = smp_processor_id(); struct ipi_data *ipi = &per_cpu(ipi_data, cpu); + struct pt_regs *old_regs = set_irq_regs(regs); ipi->ipi_count++; @@ -574,7 +578,7 @@ asmlinkage void do_IPI(struct pt_regs *regs) switch (nextmsg) { case IPI_TIMER: - ipi_timer(regs); + ipi_timer(); break; case IPI_RESCHEDULE: @@ -599,6 +603,8 @@ asmlinkage void do_IPI(struct pt_regs *regs) } } while (msgs); } + + set_irq_regs(old_regs); } void smp_send_reschedule(int cpu) diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index c03cab5c4c79..0c5a6091a93c 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -327,13 +327,12 @@ EXPORT_SYMBOL(restore_time_delta); */ void timer_tick(void) { - struct pt_regs *regs = get_irq_regs(); profile_tick(CPU_PROFILING); do_leds(); do_set_rtc(); do_timer(1); #ifndef CONFIG_SMP - update_process_times(user_mode(regs)); + update_process_times(user_mode(get_irq_regs())); #endif } |