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    powerpc: Add new CPU feature: CPU_FTR_CP_USE_DCBTZ · 2a929436
    Mark Nelson 提交于
    Add a new CPU feature bit, CPU_FTR_CP_USE_DCBTZ, to be added to the
    64bit powerpc chips that benefit from having dcbt and dcbz
    instructions used in their memory copy routines.
    
    This will be used in a subsequent patch that updates copy_4K_page().
    The new bit is added to Cell, PPC970 and Power4 because they show
    better performance with the new copy_4K_page() when dcbt and dcbz
    instructions are used.
    Signed-off-by: NMark Nelson <markn@au1.ibm.com>
    Signed-off-by: NPaul Mackerras <paulus@samba.org>
    2a929436
cputable.h 19.8 KB