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authorLinus Torvalds <torvalds@linux-foundation.org>2014-02-17 12:36:49 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-02-17 12:36:49 -0800
commitf2a77abdb8226b8dbad039d415d5d70a934ac605 (patch)
tree5bafcd57b253dec45b6e7d8995821653acecfba1 /include
parente4178d809fdaee32a56833fff1f5056c99e90a1a (diff)
parent66f9af83e56bfa12964d251df9d60fb571579913 (diff)
downloadlinux-linaro-stable-f2a77abdb8226b8dbad039d415d5d70a934ac605.tar.gz
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Ben Herrenschmidt: "Here are some more powerpc fixes for 3.14 The main one is a nasty issue with the NUMA balancing support which requires a small generic change and the addition of a new accessor to set _PAGE_NUMA. Both have been reviewed and acked by Mel and Rik. The changelog should have plenty of details but basically, without this fix, we get random user segfaults and/or corruptions due to missing TLB/hash flushes. Aneesh series of 3 patches fixes it. We have some vDSO vs. perf fixes from Anton, some small EEH fixes from Gavin, a ppc32 regression vs the stack overflow detector, and a fix for the way we handle PCIe host bridge speed settings on pseries (which is needed for proper operations of AMD graphics cards on Power8)" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/eeh: Disable EEH on reboot powerpc/eeh: Cleanup on eeh_subsystem_enabled powerpc/powernv: Rework EEH reset powerpc: Use unstripped VDSO image for more accurate profiling data powerpc: Link VDSOs at 0x0 mm: Use ptep/pmdp_set_numa() for updating _PAGE_NUMA bit mm: Dirty accountable change only apply to non prot numa case powerpc/mm: Add new "set" flag argument to pte/pmd update function powerpc/pseries: Add Gen3 definitions for PCIE link speed powerpc/pseries: Fix regression on PCI link speed powerpc: Set the correct ksp_limit on ppc32 when switching to irq stack
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/pgtable.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 8e4f41d9af4d..34c7bdc06014 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -701,6 +701,18 @@ static inline pte_t pte_mknuma(pte_t pte)
}
#endif
+#ifndef ptep_set_numa
+static inline void ptep_set_numa(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ pte_t ptent = *ptep;
+
+ ptent = pte_mknuma(ptent);
+ set_pte_at(mm, addr, ptep, ptent);
+ return;
+}
+#endif
+
#ifndef pmd_mknuma
static inline pmd_t pmd_mknuma(pmd_t pmd)
{
@@ -708,6 +720,18 @@ static inline pmd_t pmd_mknuma(pmd_t pmd)
return pmd_clear_flags(pmd, _PAGE_PRESENT);
}
#endif
+
+#ifndef pmdp_set_numa
+static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp)
+{
+ pmd_t pmd = *pmdp;
+
+ pmd = pmd_mknuma(pmd);
+ set_pmd_at(mm, addr, pmdp, pmd);
+ return;
+}
+#endif
#else
extern int pte_numa(pte_t pte);
extern int pmd_numa(pmd_t pmd);
@@ -715,6 +739,8 @@ extern pte_t pte_mknonnuma(pte_t pte);
extern pmd_t pmd_mknonnuma(pmd_t pmd);
extern pte_t pte_mknuma(pte_t pte);
extern pmd_t pmd_mknuma(pmd_t pmd);
+extern void ptep_set_numa(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
+extern void pmdp_set_numa(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp);
#endif /* CONFIG_ARCH_USES_NUMA_PROT_NONE */
#else
static inline int pmd_numa(pmd_t pmd)
@@ -742,10 +768,23 @@ static inline pte_t pte_mknuma(pte_t pte)
return pte;
}
+static inline void ptep_set_numa(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
+{
+ return;
+}
+
+
static inline pmd_t pmd_mknuma(pmd_t pmd)
{
return pmd;
}
+
+static inline void pmdp_set_numa(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp)
+{
+ return ;
+}
#endif /* CONFIG_NUMA_BALANCING */
#endif /* CONFIG_MMU */