From d0a9081b1e75ba62bb4450c5b8e8299a41d25278 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 20 Oct 2006 14:30:27 -0700 Subject: ACPI: uninline ACPI global locking functions - Fixes a build problem with CONFIG_M386=y (include file dependencies get messy). - Share the implementation between x86 and x86_64 - These are too big to inline anyway. Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- arch/i386/kernel/acpi/boot.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/i386') diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index ab974ff9707..bf7099ca41a 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c @@ -1319,3 +1319,25 @@ static int __init setup_acpi_sci(char *s) return 0; } early_param("acpi_sci", setup_acpi_sci); + +int __acpi_acquire_global_lock(unsigned int *lock) +{ + unsigned int old, new, val; + do { + old = *lock; + new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); + val = cmpxchg(lock, old, new); + } while (unlikely (val != old)); + return (new < 3) ? -1 : 0; +} + +int __acpi_release_global_lock(unsigned int *lock) +{ + unsigned int old, new, val; + do { + old = *lock; + new = old & ~0x3; + val = cmpxchg(lock, old, new); + } while (unlikely (val != old)); + return old & 0x1; +} -- cgit v1.2.3 From 5c5e81aaa821822309fd2663c22c94ca0802e407 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 20 Oct 2006 14:30:30 -0700 Subject: ACPI: acpi-cpufreq: remove unused data when !CONFIG_SMP acpi-cpufreq.c, speedstep-centrino.c: warning: 'sw_any_bug_dmi_table' defined but not used Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/i386') diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 57c880bf0bd..41e1289f8a4 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -402,6 +402,7 @@ static int sw_any_bug_found(struct dmi_system_id *d) return 0; } +#ifdef CONFIG_SMP static struct dmi_system_id sw_any_bug_dmi_table[] = { { .callback = sw_any_bug_found, @@ -414,6 +415,7 @@ static struct dmi_system_id sw_any_bug_dmi_table[] = { }, { } }; +#endif static int acpi_cpufreq_cpu_init ( -- cgit v1.2.3