• Haavard Skinnemoen's avatar
    avr32: Clean up and optimize the TLB operations · b13d618b
    Haavard Skinnemoen authored
    This and the following patches aim to optimize the code dealing with
    page tables and TLB operations. Each patch reduces the time it takes
    to gzip a 16 MB file slightly, but I expect things like fork() and
    mmap() will improve somewhat more.
    
    This patch deals with the low-level TLB operations:
    
      * Remove unused _TLBEHI_I define
      * Use gcc builtins instead of inline assembly
      * Remove a few unnecessary pipeline flushes and nops
      * Introduce NR_TLB_ENTRIES define and use it instead of hardcoding it
        to 32 a few places throughout the code.
      * Use sysreg bitops instead of hardcoded shifts and masks
      * Make a few needlessly global functions static
    Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
    b13d618b
tlbflush.h 1.09 KB