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ARM: SMP: pass an ipi number to smp_cross_call()

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This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI.  Recover the SGI number via do_IPI.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2010-11-15 09:42:08 +00:00
parent d92e04713c
commit ad3b6993b9
15 changed files with 24 additions and 30 deletions
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4
arch/arm/include/asm/smp.h
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@ -38,7 +38,7 @@ extern void show_ipi_list(struct seq_file *p);
/*
* Called from assembly code, this handles an IPI.
*/
asmlinkage void do_IPI(struct pt_regs *regs);
asmlinkage void do_IPI(int ipinr, struct pt_regs *regs);
/*
* Setup the set of possible CPUs (via set_cpu_possible)
@ -53,7 +53,7 @@ extern void smp_store_cpu_info(unsigned int cpuid);
/*
* Raise an IPI cross call on CPUs in callmap.
*/
extern void smp_cross_call(const struct cpumask *mask);
extern void smp_cross_call(const struct cpumask *mask, int ipi);
/*
* Boot a secondary CPU, and assign it the specified idle task.