Messages in this thread Patch in this message | | | Subject | [PATCH] fix smp generic helper voyager breakage | From | James Bottomley <> | Date | Thu, 30 Oct 2008 16:09:39 -0500 |
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>From c3029f2bac04e387a1eb6aa2967310d61e9f2561 Mon Sep 17 00:00:00 2001 From: James Bottomley <James.Bottomley@HansenPartnership.com> Date: Wed, 29 Oct 2008 14:53:06 -0500 Subject: [VOYAGER] fix generic smp helpers non compile
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> --- arch/x86/Kconfig | 4 +++- arch/x86/mach-voyager/voyager_smp.c | 16 ++++++++++++++-- 2 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 4e529cc..7e971cc 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -167,9 +167,11 @@ 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 + 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 9cd327a..63ed72b 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> @@ -1783,6 +1784,17 @@ 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, @@ -1792,6 +1804,6 @@ 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, }; -- 1.5.6.5
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