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>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 4cf0ab13d187a943f88afc1d9761c739fee41008..ac22bb7719f730e6b8d12b305ec9e08952a513a4 100644 (file)
--- 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 0e331652681e4a247122f2381861b0403f88b93c..52145007bd7efb8e99a9516ddeb09af6ea1e445b 100644 (file)
--- 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,
 };