lkml.org 
[lkml]   [2024]   [Feb]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[RESEND PATCH v8 2/8] arm64: tlbflush: Add APIs manipulating tlb batch's arch data
    Date
    This is a preparation for migrc mechanism that requires to manipulate
    tlb batch's arch data. Even though arm64 does nothing with it, arch
    with CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH should provide the APIs.

    Signed-off-by: Byungchul Park <byungchul@sk.com>
    ---
    arch/arm64/include/asm/tlbflush.h | 19 +++++++++++++++++++
    1 file changed, 19 insertions(+)

    diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
    index bb2c2833a987..4f2094843e7a 100644
    --- a/arch/arm64/include/asm/tlbflush.h
    +++ b/arch/arm64/include/asm/tlbflush.h
    @@ -328,6 +328,25 @@ static inline void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch)
    dsb(ish);
    }

    +static inline void arch_tlbbatch_clear(struct arch_tlbflush_unmap_batch *batch)
    +{
    + /* nothing to do */
    +}
    +
    +static inline void arch_tlbbatch_fold(struct arch_tlbflush_unmap_batch *bdst,
    + struct arch_tlbflush_unmap_batch *bsrc)
    +{
    + /* nothing to do */
    +}
    +
    +static inline bool arch_tlbbatch_done(struct arch_tlbflush_unmap_batch *bdst,
    + struct arch_tlbflush_unmap_batch *bsrc)
    +{
    + /* nothing to do */
    +
    + return false;
    +}
    +
    /*
    * This is meant to avoid soft lock-ups on large TLB flushing ranges and not
    * necessarily a performance improvement.
    --
    2.17.1

    \
     
     \ /
      Last update: 2024-05-27 15:21    [W:2.181 / U:0.028 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site