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| author | Anton Blanchard <anton@samba.org> | 2011-07-25 01:46:34 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-08-05 14:47:58 +1000 |
| commit | 598c8231ab54cfcc8ea6f52882cefee98b129bd1 (patch) | |
| tree | ff8ae1a2080780c49edc3cd48ef2af86b451c83b /arch | |
| parent | 711ef84e80ec6f937ad59c7a00490421a5c92867 (diff) | |
| download | linux-stable-598c8231ab54cfcc8ea6f52882cefee98b129bd1.tar.gz linux-stable-598c8231ab54cfcc8ea6f52882cefee98b129bd1.tar.bz2 linux-stable-598c8231ab54cfcc8ea6f52882cefee98b129bd1.zip | |
powerpc/pseries: Simplify vpa deregistration functions
The VPA, SLB shadow and DTL degistration functions do not need an
address, so simplify things and remove it.
Also cleanup pseries_kexec_cpu_down a bit by storing the cpu IDs
in local variables.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/pseries/hotplug-cpu.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/kexec.c | 20 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/plpar_wrappers.h | 8 |
3 files changed, 14 insertions, 18 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index bc0288501f17..83a3ca2fd282 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -135,7 +135,7 @@ static void pseries_mach_cpu_die(void) get_lppaca()->idle = 0; if (get_preferred_offline_state(cpu) == CPU_STATE_ONLINE) { - unregister_slb_shadow(hwcpu, __pa(get_slb_shadow())); + unregister_slb_shadow(hwcpu); /* * Call to start_secondary_resume() will not return. @@ -150,7 +150,7 @@ static void pseries_mach_cpu_die(void) WARN_ON(get_preferred_offline_state(cpu) != CPU_STATE_OFFLINE); set_cpu_current_state(cpu, CPU_STATE_OFFLINE); - unregister_slb_shadow(hwcpu, __pa(get_slb_shadow())); + unregister_slb_shadow(hwcpu); rtas_stop_self(); /* Should never get here... */ diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c index 3bae8bd7db3b..7d94bdc63d50 100644 --- a/arch/powerpc/platforms/pseries/kexec.c +++ b/arch/powerpc/platforms/pseries/kexec.c @@ -25,34 +25,30 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) { /* Don't risk a hypervisor call if we're crashing */ if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { - unsigned long addr; int ret; + int cpu = smp_processor_id(); + int hwcpu = hard_smp_processor_id(); if (get_lppaca()->dtl_enable_mask) { - ret = unregister_dtl(hard_smp_processor_id()); + ret = unregister_dtl(hwcpu); if (ret) { pr_err("WARNING: DTL deregistration for cpu " "%d (hw %d) failed with %d\n", - smp_processor_id(), - hard_smp_processor_id(), ret); + cpu, hwcpu, ret); } } - addr = __pa(get_slb_shadow()); - ret = unregister_slb_shadow(hard_smp_processor_id(), addr); + ret = unregister_slb_shadow(hwcpu); if (ret) { pr_err("WARNING: SLB shadow buffer deregistration " "for cpu %d (hw %d) failed with %d\n", - smp_processor_id(), - hard_smp_processor_id(), ret); + cpu, hwcpu, ret); } - addr = __pa(get_lppaca()); - ret = unregister_vpa(hard_smp_processor_id(), addr); + ret = unregister_vpa(hwcpu); if (ret) { pr_err("WARNING: VPA deregistration for cpu %d " - "(hw %d) failed with %d\n", smp_processor_id(), - hard_smp_processor_id(), ret); + "(hw %d) failed with %d\n", cpu, hwcpu, ret); } } } diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h index a6921aec2d6f..41c24c146d6a 100644 --- a/arch/powerpc/platforms/pseries/plpar_wrappers.h +++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h @@ -53,9 +53,9 @@ static inline long vpa_call(unsigned long flags, unsigned long cpu, return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa); } -static inline long unregister_vpa(unsigned long cpu, unsigned long vpa) +static inline long unregister_vpa(unsigned long cpu) { - return vpa_call(0x5, cpu, vpa); + return vpa_call(0x5, cpu, 0); } static inline long register_vpa(unsigned long cpu, unsigned long vpa) @@ -63,9 +63,9 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa) return vpa_call(0x1, cpu, vpa); } -static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa) +static inline long unregister_slb_shadow(unsigned long cpu) { - return vpa_call(0x7, cpu, vpa); + return vpa_call(0x7, cpu, 0); } static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa) |