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| author | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-11-09 11:53:14 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-11 12:08:53 +0100 |
| commit | 6cd10f8db385ba547811baa5b26f672fdff232e6 (patch) | |
| tree | 9bb444b1beffe678e25dceace59360d6df35f7bd | |
| parent | 3044646148cdfa83a311bf1c146a70e550280159 (diff) | |
| download | kernel_samsung_crespo-6cd10f8db385ba547811baa5b26f672fdff232e6.zip kernel_samsung_crespo-6cd10f8db385ba547811baa5b26f672fdff232e6.tar.gz kernel_samsung_crespo-6cd10f8db385ba547811baa5b26f672fdff232e6.tar.bz2 | |
x86, voyager: fix smp generic helper voyager breakage
Impact: build/boot fix for x86/Voyager
This change:
| commit 3d4422332711ef48ef0f132f1fcbfcbd56c7f3d1
| Author: Jens Axboe <jens.axboe@oracle.com>
| Date: Thu Jun 26 11:21:34 2008 +0200
|
| Add generic helpers for arch IPI function calls
didn't wire up the voyager smp call function correctly, so do that
here. Also make CONFIG_USE_GENERIC_SMP_HELPERS a def_bool y again,
since we now use the generic helpers for every x86 architecture.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Jens Axboe <Jens.Axboe@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/Kconfig | 5 | ||||
| -rw-r--r-- | arch/x86/mach-voyager/voyager_smp.c | 16 |
2 files changed, 18 insertions, 3 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4cf0ab1..ac22bb7 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -167,9 +167,12 @@ config GENERIC_PENDING_IRQ config X86_SMP bool depends on SMP && ((X86_32 && !X86_VOYAGER) || X86_64) - select USE_GENERIC_SMP_HELPERS default y +config USE_GENERIC_SMP_HELPERS + def_bool y + depends on SMP + config X86_32_SMP def_bool y depends on X86_32 && SMP diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c index 0e33165..5214500 100644 --- a/arch/x86/mach-voyager/voyager_smp.c +++ b/arch/x86/mach-voyager/voyager_smp.c @@ -7,6 +7,7 @@ * This file provides all the same external entries as smp.c but uses * the voyager hal to provide the functionality */ +#include <linux/cpu.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/kernel_stat.h> @@ -1790,6 +1791,17 @@ void __init smp_setup_processor_id(void) x86_write_percpu(cpu_number, hard_smp_processor_id()); } +static void voyager_send_call_func(cpumask_t callmask) +{ + __u32 mask = cpus_addr(callmask)[0] & ~(1 << smp_processor_id()); + send_CPI(mask, VIC_CALL_FUNCTION_CPI); +} + +static void voyager_send_call_func_single(int cpu) +{ + send_CPI(1 << cpu, VIC_CALL_FUNCTION_SINGLE_CPI); +} + struct smp_ops smp_ops = { .smp_prepare_boot_cpu = voyager_smp_prepare_boot_cpu, .smp_prepare_cpus = voyager_smp_prepare_cpus, @@ -1799,6 +1811,6 @@ struct smp_ops smp_ops = { .smp_send_stop = voyager_smp_send_stop, .smp_send_reschedule = voyager_smp_send_reschedule, - .send_call_func_ipi = native_send_call_func_ipi, - .send_call_func_single_ipi = native_send_call_func_single_ipi, + .send_call_func_ipi = voyager_send_call_func, + .send_call_func_single_ipi = voyager_send_call_func_single, }; |