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linux/arch/powerpc/mm
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Greg Kurz 3338a65bad powerpc/vphn: parsing code rewrite 
The current VPHN parsing logic has some flaws that this patch aims to fix:

1) when the value 0xffff is read, the value 0xffffffff gets added to the
   the output list and its element count isn't incremented. This is wrong.
   According to PAPR+ the domain identifiers are packed into a sequence
   terminated by the "reserved value of all ones". This means that 0xffff
   is a stream terminator.

2) the combination of byteswaps and casts make the code hardly readable.
   Let's parse the stream one 16-bit field at a time instead.

3) it is assumed that the hypercall returns 12 32-bit values packed into
   6 64-bit registers. According to PAPR+, the domain identifiers may be
   streamed as 16-bit values. Let's increase the number of expected numbers
   to 24.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-03-18 10:48:59 +11:00
..
40x_mmu.c
44x_mmu.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
copro_fault.c ppc64: add paranoid warnings for unexpected DSISR_PROTFAULT 2015-02-12 18:54:08 -08:00
dma-noncoherent.c lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual Kconfig 2014-08-08 15:57:26 -07:00
fault.c ppc64: add paranoid warnings for unexpected DSISR_PROTFAULT 2015-02-12 18:54:08 -08:00
fsl_booke_mmu.c powerpc: Remove duplicate tlbcam_index declarations 2015-01-29 19:59:03 -06:00
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: don't do tlbie for updatepp request with NO HPTE fault 2014-12-05 16:26:15 +11:00
hash_native_64.c powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault 2014-12-05 16:26:15 +11:00
hash_utils_64.c mm/debug-pagealloc: make debug-pagealloc boottime configurable 2014-12-13 12:42:48 -08:00
highmem.c
hugepage-hash64.c powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault 2014-12-05 16:26:15 +11:00
hugetlbpage-book3e.c powerpc: Replace __get_cpu_var uses 2014-11-03 12:12:32 +11:00
hugetlbpage-hash64.c powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault 2014-12-05 16:26:15 +11:00
hugetlbpage.c Tighten rules for ACCESS_ONCE 2015-02-14 10:54:28 -08:00
icswx_pid.c
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 powerpc: Remove superfluous bootmem includes 2014-11-10 09:59:26 +11:00
init_64.c powerpc: Remove superfluous bootmem includes 2014-11-10 09:59:26 +11:00
Makefile powerpc/vphn: move VPHN parsing logic to a separate file 2015-03-18 10:48:59 +11:00
mem.c powerpc: Move sparse_init() into initmem_init 2014-11-10 09:59:26 +11:00
mmap.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
mmu_context_hash32.c powerpc: Remove power3 from comments 2014-07-28 14:10:26 +10:00
mmu_context_hash64.c powerpc: Reduce PTE table memory wastage 2013-04-30 16:00:07 +10:00
mmu_context_nohash.c powerpc/8xx: reduce pressure on TLB due to context switches 2015-01-29 21:51:06 -06:00
mmu_decl.h powerpc: Fix comment typo 'CONIFG_8xx' 2014-10-29 14:42:08 +01:00
numa.c powerpc/vphn: move VPHN parsing logic to a separate file 2015-03-18 10:48:59 +11:00
pgtable_32.c powerpc32: Use kmem_cache memory for PGDIR 2015-01-29 21:59:02 -06:00
pgtable_64.c powerpc: drop _PAGE_FILE and pte_file()-related helpers 2015-02-16 17:56:05 -08:00
pgtable.c mm: convert p[te|md]_numa users to p[te|md]_protnone_numa 2015-02-12 18:54:08 -08:00
ppc_mmu_32.c powerpc: Remove power3 from comments 2014-07-28 14:10:26 +10:00
slb_low.S Merge remote-tracking branch 'anton/abiv2' into next 2014-05-05 20:57:12 +10:00
slb.c powerpc/cell: Move data segment faulting code out of cell platform 2014-10-08 20:14:55 +11:00
slice.c powerpc: Remove some unused functions 2015-01-28 15:00:24 +11:00
subpage-prot.c arch/powerpc/mm/subpage-prot.c: use walk->vma and walk_page_vma() 2015-02-11 17:06:06 -08:00
tlb_hash32.c
tlb_hash64.c powerpc/thp: Add tracepoints to track hugepage invalidate 2014-08-13 18:20:42 +10:00
tlb_low_64e.S powerpc/e6500: Work around erratum A-008139 2014-07-29 19:26:29 -05:00
tlb_nohash_low.S powerpc/fsl_booke: smp support for booting a relocatable kernel above 64M 2014-01-09 17:52:18 -06:00
tlb_nohash.c powerpc/mm: Warn on flushing tlb page in kernel context 2015-02-04 13:19:27 +11:00
vphn.c powerpc/vphn: parsing code rewrite 2015-03-18 10:48:59 +11:00
vphn.h powerpc/vphn: parsing code rewrite 2015-03-18 10:48:59 +11:00