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5d88aa85c0
linux/arch/powerpc/mm
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Jesse Larrew 5d88aa85c0 powerpc/pseries: Update CPU maps when device tree is updated 
Platform events such as partition migration or the new PRRN firmware
feature can cause the NUMA characteristics of a CPU to change, and these
changes will be reflected in the device tree nodes for the affected
CPUs.

This patch registers a handler for Open Firmware device tree updates
and reconfigures the CPU and node maps whenever the associativity
changes. Currently, this is accomplished by marking the affected CPUs in
the cpu_associativity_changes_mask and allowing
arch_update_cpu_topology() to retrieve the new associativity information
using hcall_vphn().

Protecting the NUMA cpu maps from concurrent access during an update
operation will be addressed in a subsequent patch in this series.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-04-26 16:08:23 +10:00
..
40x_mmu.c
44x_mmu.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
dma-noncoherent.c powerpc: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
fault.c powerpc: Hardware breakpoints rewrite to handle non DABR breakpoint registers 2013-01-10 17:01:44 +11:00
fsl_booke_mmu.c powerpc/fsl-booke: Fixup calc_cam_sz to support MMU v2 2012-03-15 12:12:19 -05:00
gup.c powerpc: remove superfluous PageTail checks on the pte gup_fast 2011-11-02 16:06:57 -07:00
hash_low_32.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
hash_low_64.S powerpc/mm: Fix hash computation function 2013-02-04 15:15:08 +11:00
hash_native_64.c powerpc: Remove tlb batching hack for nighthawk 2012-09-27 12:51:06 +10:00
hash_utils_64.c powerpc: Try to insert the hptes repeatedly in kernel_map_linear_page() 2013-04-18 16:00:00 +10:00
highmem.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugetlbpage-book3e.c powerpc/book3e: Change hugetlb preload to take vma argument 2011-12-07 16:26:24 +11:00
hugetlbpage-hash64.c powerpc: Split the code trying to insert hpte repeatedly as an helper function 2013-04-18 15:59:59 +10:00
hugetlbpage.c powerpc: fix compile fail in hugetlb cmdline parsing 2012-05-07 16:51:19 -07:00
icswx_pid.c powerpc: Split ICSWX ACOP and PID processing 2011-11-25 14:11:27 +11:00
icswx.c powerpc: Fix typo "CONFIG_ICSWX_PID" 2013-04-18 13:03:54 +10:00
icswx.h powerpc/icswx: Fix race condition with IPI setting ACOP 2012-03-07 17:06:09 +11:00
init_32.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
init_64.c memory-hotplug: remove memmap of sparse-vmemmap 2013-02-23 17:50:12 -08:00
Makefile powerpc: Build kernel with -mcmodel=medium 2013-01-10 17:00:31 +11:00
mem.c powerpc: place EXPORT_SYMBOL macro right after declaration 2013-04-18 13:03:49 +10:00
mmap_64.c powerpc+sparc64/mm: Remove hack in mmap randomize layout 2011-11-28 11:42:09 +11:00
mmu_context_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
mmu_context_hash64.c powerpc: Update kernel VSID range 2013-03-17 12:39:06 +11:00
mmu_context_nohash.c powerpc: use clear_tasks_mm_cpumask() 2012-05-31 17:49:29 -07:00
mmu_decl.h powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map 2011-10-11 23:30:41 -05:00
numa.c powerpc/pseries: Update CPU maps when device tree is updated 2013-04-26 16:08:23 +10:00
pgtable_32.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
pgtable_64.c powerpc: Rename USER_ESID_BITS* to ESID_BITS* 2013-03-17 12:45:44 +11:00
pgtable.c powerpc: Hugetlb for BookE 2011-09-20 09:19:40 +10:00
ppc_mmu_32.c
slb_low.S powerpc: Rename USER_ESID_BITS* to ESID_BITS* 2013-03-17 12:45:44 +11:00
slb.c powerpc: Remove FW_FEATURE ISERIES from arch code 2012-03-21 11:16:11 +11:00
slice.c Fix misspellings of "whether" in comments. 2012-11-19 14:31:35 +01:00
stab.c powerpc/mm: Remove uses of abs_to_virt() and virt_to_abs() 2012-09-05 15:19:31 +10:00
subpage-prot.c powerpc/mm: Match variable types to API 2012-09-10 14:37:31 +10:00
tlb_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
tlb_hash64.c powerpc: Update kernel VSID range 2013-03-17 12:39:06 +11:00
tlb_low_64e.S powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int 2012-09-05 15:35:52 +10:00
tlb_nohash_low.S powerpc/47x: Use the new ppc-opcode infrastructure 2012-11-15 12:59:24 +11:00
tlb_nohash.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-01-06 17:58:22 -08:00