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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:23:15 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:23:15 +0900
commit9e2d8656f5e8aa214e66b462680cf86b210b74a8 (patch)
treef67d62e896cedf75599ea45f9ecf9999c6ad24cd /arch/sparc/kernel/tsb.S
parent1ea4f4f8405cc1ceec23f2d261bc3775785e6712 (diff)
parent9e695d2ecc8451cc2c1603d60b5c8e7f5581923a (diff)
Merge branch 'akpm' (Andrew's patch-bomb)
Merge patches from Andrew Morton: "A few misc things and very nearly all of the MM tree. A tremendous amount of stuff (again), including a significant rbtree library rework." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (160 commits) sparc64: Support transparent huge pages. mm: thp: Use more portable PMD clearing sequenece in zap_huge_pmd(). mm: Add and use update_mmu_cache_pmd() in transparent huge page code. sparc64: Document PGD and PMD layout. sparc64: Eliminate PTE table memory wastage. sparc64: Halve the size of PTE tables sparc64: Only support 4MB huge pages and 8KB base pages. memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning mm: memcg: clean up mm_match_cgroup() signature mm: document PageHuge somewhat mm: use %pK for /proc/vmallocinfo mm, thp: fix mlock statistics mm, thp: fix mapped pages avoiding unevictable list on mlock memory-hotplug: update memory block's state and notify userspace memory-hotplug: preparation to notify memory block's state at memory hot remove mm: avoid section mismatch warning for memblock_type_name make GFP_NOTRACK definition unconditional cma: decrease cc.nr_migratepages after reclaiming pagelist CMA: migrate mlocked pages kpageflags: fix wrong KPF_THP on non-huge compound pages ...
Diffstat (limited to 'arch/sparc/kernel/tsb.S')
-rw-r--r--arch/sparc/kernel/tsb.S9
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S
index db15d123f054..d4bdc7a62375 100644
--- a/arch/sparc/kernel/tsb.S
+++ b/arch/sparc/kernel/tsb.S
@@ -49,7 +49,7 @@ tsb_miss_page_table_walk:
/* Before committing to a full page table walk,
* check the huge page TSB.
*/
-#ifdef CONFIG_HUGETLB_PAGE
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
661: ldx [%g7 + TRAP_PER_CPU_TSB_HUGE], %g5
nop
@@ -110,12 +110,9 @@ tsb_miss_page_table_walk:
tsb_miss_page_table_walk_sun4v_fastpath:
USER_PGTABLE_WALK_TL1(%g4, %g7, %g5, %g2, tsb_do_fault)
- /* Load and check PTE. */
- ldxa [%g5] ASI_PHYS_USE_EC, %g5
- brgez,pn %g5, tsb_do_fault
- nop
+ /* Valid PTE is now in %g5. */
-#ifdef CONFIG_HUGETLB_PAGE
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
661: sethi %uhi(_PAGE_SZALL_4U), %g7
sllx %g7, 32, %g7
.section .sun4v_2insn_patch, "ax"