talos-skiboot/libc/string/memset.c, branch master

libc: Use 8-bytes stores for non-0 memset too

2016-08-18T06:04:26+00:00

Memory poisoning hammers this, so let's be a bit smart about it and avoid falling back to byte stores when the data is not 0 Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Stewart Smith

Optimized memset() implementation for POWER

2015-06-01T07:10:10+00:00

This uses the dcbz instruction to clear cacheline at a time rather than byte at a time. This means that even without high levels of optimization, we *dramatically* improve boot performance with SKIBOOT_GCOV=1 and probably ever so slightly speed things up for normal builds. We currently just hard-code 128 as cacheline size as all CPUs that skiboot currently boots on have 128 byte cachelines. Signed-off-by: Stewart Smith

Initial commit of Open Source release

2014-07-02T05:36:20+00:00

Signed-off-by: Benjamin Herrenschmidt