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| author | Jesse Larrew <jlarrew@linux.vnet.ibm.com> | 2010-12-17 22:07:47 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-01-11 16:06:16 +1100 |
| commit | 39bf990ead35c7263652ca5dd8262b2b2cd147ac (patch) | |
| tree | 2aac1543090234a97d4b67f1871bbfcd857359e2 /arch/powerpc/mm/numa.c | |
| parent | eed0ba0b4ab2d1668588219a8efa81bf8636a12d (diff) | |
| download | linux-39bf990ead35c7263652ca5dd8262b2b2cd147ac.tar.bz2 | |
powerpc/pseries: Fix VPHN build errors on non-SMP systems
The header asm/hvcall.h was previously included indirectly via
smp.h. On non-SMP systems, however, these declarations are excluded
and the build breaks. This is easily fixed by including asm/hvcall.h
directly.
The VPHN feature is only meaningful on NUMA systems that implement
the SPLPAR option, so exclude the VPHN code on systems without
SPLPAR enabled.
Also, expose unmap_cpu_from_node() on systems with SPLPAR enabled,
even if CONFIG_HOTPLUG_CPU is disabled.
Lastly, map_cpu_to_node() is now needed by VPHN to manipulate the
node masks after boot time, so remove the __cpuinit annotation to
fix a section mismatch.
Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/mm/numa.c')
| -rw-r--r-- | arch/powerpc/mm/numa.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index d644ba7e8aba..3c0d20c9161a 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -28,6 +28,7 @@ #include <asm/smp.h> #include <asm/firmware.h> #include <asm/paca.h> +#include <asm/hvcall.h> static int numa_enabled = 1; @@ -167,7 +168,7 @@ static void __init get_node_active_region(unsigned long start_pfn, work_with_active_regions(nid, get_active_region_work_fn, node_ar); } -static void __cpuinit map_cpu_to_node(int cpu, int node) +static void map_cpu_to_node(int cpu, int node) { numa_cpu_lookup_table[cpu] = node; @@ -177,7 +178,7 @@ static void __cpuinit map_cpu_to_node(int cpu, int node) cpumask_set_cpu(cpu, node_to_cpumask_map[node]); } -#ifdef CONFIG_HOTPLUG_CPU +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PPC_SPLPAR) static void unmap_cpu_from_node(unsigned long cpu) { int node = numa_cpu_lookup_table[cpu]; @@ -191,7 +192,7 @@ static void unmap_cpu_from_node(unsigned long cpu) cpu, node); } } -#endif /* CONFIG_HOTPLUG_CPU */ +#endif /* CONFIG_HOTPLUG_CPU || CONFIG_PPC_SPLPAR */ /* must hold reference to node during call */ static const int *of_get_associativity(struct device_node *dev) @@ -1289,6 +1290,7 @@ u64 memory_hotplug_max(void) #endif /* CONFIG_MEMORY_HOTPLUG */ /* Vrtual Processor Home Node (VPHN) support */ +#ifdef CONFIG_PPC_SPLPAR #define VPHN_NR_CHANGE_CTRS (8) static u8 vphn_cpu_change_counts[NR_CPUS][VPHN_NR_CHANGE_CTRS]; static cpumask_t cpu_associativity_changes_mask; @@ -1531,3 +1533,4 @@ int stop_topology_update(void) vphn_enabled = 0; return del_timer_sync(&topology_timer); } +#endif /* CONFIG_PPC_SPLPAR */ |