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2957c03539
Implement atomic logic ops -- atomic_{or,xor,and}. For tilegx, these are relatively straightforward; the architecture provides atomic "or" and "and", both 32-bit and 64-bit. To support xor we provide a loop using "cmpexch". For the older 32-bit tilepro architecture, we have to extend the set of low-level assembly routines to include 32-bit "and", as well as all three 64-bit routines. Somewhat confusingly, some 32-bit versions are already used by the bitops inlines, with parameter types appropriate for bitops, so we have to do a bit of casting to match "int" to "unsigned long". Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/1436474297-32187-1-git-send-email-cmetcalf@ezchip.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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.. | ||
atomic_32.c | ||
atomic_asm_32.S | ||
cacheflush.c | ||
checksum.c | ||
cpumask.c | ||
delay.c | ||
exports.c | ||
Makefile | ||
memchr_32.c | ||
memchr_64.c | ||
memcpy_32.S | ||
memcpy_64.c | ||
memcpy_user_64.c | ||
memmove.c | ||
memset_32.c | ||
memset_64.c | ||
spinlock_32.c | ||
spinlock_64.c | ||
spinlock_common.h | ||
strchr_32.c | ||
strchr_64.c | ||
string-endian.h | ||
strlen_32.c | ||
strlen_64.c | ||
strnlen_32.c | ||
strnlen_64.c | ||
uaccess.c | ||
usercopy_32.S | ||
usercopy_64.S |