Doug / smarc-fsl-linux-kernel

29 Mar, 2012

1 commit

21 Feb, 2010

1 commit

  • 4b3073e1c   MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself ... Browse Code »

    On VIVT ARM, when we have multiple shared mappings of the same file
    in the same MM, we need to ensure that we have coherency across all
    copies. We do this via make_coherent() by making the pages
    uncacheable.

    This used to work fine, until we allowed highmem with highpte - we
    now have a page table which is mapped as required, and is not available
    for modification via update_mmu_cache().

    Ralf Beache suggested getting rid of the PTE value passed to
    update_mmu_cache():

    On MIPS update_mmu_cache() calls __update_tlb() which walks pagetables
    to construct a pointer to the pte again. Passing a pte_t * is much
    more elegant. Maybe we might even replace the pte argument with the
    pte_t?

    Ben Herrenschmidt would also like the pte pointer for PowerPC:

    Passing the ptep in there is exactly what I want. I want that
    -instead- of the PTE value, because I have issue on some ppc cases,
    for I$/D$ coherency, where set_pte_at() may decide to mask out the
    _PAGE_EXEC.

    So, pass in the mapped page table pointer into update_mmu_cache(), and
    remove the PTE value, updating all implementations and call sites to
    suit.

    Includes a fix from Stephen Rothwell:

    sparc: fix fallout from update_mmu_cache API change

    Signed-off-by: Stephen Rothwell

    Acked-by: Benjamin Herrenschmidt
    Signed-off-by: Russell King

    Russell King
     

09 May, 2007

1 commit

12 Feb, 2007

2 commits

  • cefc8be82   [PATCH] Consolidate bust_spinlocks() ... Browse Code »

    Part of long forgotten patch
    http://groups.google.com/group/fa.linux.kernel/msg/e98e941ce1cf29f6?dmode=source
    Since then, m32r grabbed two copies.

    Leave s390 copy because of important absence of CONFIG_VT, but remove
    references to non-existent timerlist_lock. ia64 also loses timerlist_lock.

    Signed-off-by: Alexey Dobriyan
    Acked-by: Martin Schwidefsky
    Cc: Andi Kleen
    Cc: "Luck, Tony"
    Cc: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kirill Korotaev
     
  • fabb626ad   [PATCH] m32r: cosmetic updates and trivial fixes ... Browse Code »

    Cosmetic updates and trivial fixes of m32r arch-dependent files.
    - Remove RCS ID strings and trailing white lines
    - Other misc. cosmetic updates

    Signed-off-by: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Hirokazu Takata
     

01 Jul, 2006

1 commit

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds