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| author | Mark Nelson <markn@au1.ibm.com> | 2008-08-22 14:36:19 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-09-15 11:07:38 -0700 |
| commit | 2a9294369bd020db89bfdf78b84c3615b39a5c84 (patch) | |
| tree | fff7367780a53e7e9bd85d5003f28195dda0fc5f /arch/powerpc/lib/copypage_64.S | |
| parent | 1b3c83e6d3b4d3001e42a9cf800c0071adf8e2c9 (diff) | |
| download | op-kernel-dev-2a9294369bd020db89bfdf78b84c3615b39a5c84.zip op-kernel-dev-2a9294369bd020db89bfdf78b84c3615b39a5c84.tar.gz | |
powerpc: Add new CPU feature: CPU_FTR_CP_USE_DCBTZ
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: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/lib/copypage_64.S')
0 files changed, 0 insertions, 0 deletions
