David S. Miller 2077cef4d5 sparc64: Fix several bugs in memmove(). ... Firstly, handle zero length calls properly. Believe it or not there are a few of these happening during early boot. Next, we can't just drop to a memcpy() call in the forward copy case where dst <= src. The reason is that the cache initializing stores used in the Niagara memcpy() implementations can end up clearing out cache lines before we've sourced their original contents completely. For example, considering NG4memcpy, the main unrolled loop begins like this: load src + 0x00 load src + 0x08 load src + 0x10 load src + 0x18 load src + 0x20 store dst + 0x00 Assume dst is 64 byte aligned and let's say that dst is src - 8 for this memcpy() call. That store at the end there is the one to the first line in the cache line, thus clearing the whole line, which thus clobbers "src + 0x28" before it even gets loaded. To avoid this, just fall through to a simple copy only mildly optimized for the case where src and dst are 8 byte aligned and the length is a multiple of 8 as well. We could get fancy and call GENmemcpy() but this is good enough for how this thing is actually used. Reported-by: David Ahern <david.ahern@oracle.com> Reported-by: Bob Picco <bpicco@meloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-03-23 09:22:10 -07:00
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boot
configs
crypto	crypto: sparc64/md5 - fix module description	2015-01-13 22:30:48 +11:00
include	sparc: perf: Add support M7 processor	2015-03-19 18:54:49 -07:00
kernel	sparc: Touch NMI watchdog when walking cpus and calling printk	2015-03-19 18:54:50 -07:00
lib	sparc64: Fix several bugs in memmove().	2015-03-23 09:22:10 -07:00
math-emu
mm	sparc: Fix /proc/kcore	2015-03-18 19:15:28 -07:00
net	module: remove mod arg from module_free, rename module_memfree().	2015-01-20 11:38:33 +10:30
oprofile
power
prom
Kbuild
Kconfig	sparc: Fix /proc/kcore	2015-03-18 19:15:28 -07:00
Kconfig.debug
Makefile