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Max Filippov f7c34874f0 xtensa: add exclusive atomics support 
Implement atomic primitives using exclusive access opcodes available in
the recent xtensa cores.
Since l32ex/s32ex don't have any memory ordering guarantees don't define
__smp_mb__before_atomic/__smp_mb__after_atomic to make them use memw.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
 		2019-05-07 10:36:31 -07:00
..
syscalls arch: add pidfd and io_uring syscalls everywhere 2019-04-15 16:31:17 +02:00
.gitignore xtensa: tell git to ignore generated files 2013-06-05 10:14:19 -07:00
Makefile xtensa: implement jump_label support 2018-12-20 14:44:38 -08:00
align.S xtensa: clean up word alignment macros in assembly code 2017-12-10 14:48:53 -08:00
asm-offsets.c xtensa: drop unused field from the struct exc_table 2018-12-03 01:39:22 -08:00
coprocessor.S xtensa: simplify coprocessor.S 2018-12-04 14:08:23 -08:00
entry.S xtensa: use actual syscall number in do_syscall_trace_leave 2019-04-03 23:18:36 -07:00
head.S xtensa: SMP: fix secondary CPU initialization 2019-01-26 02:02:13 -08:00
hw_breakpoint.c xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
irq.c xtensa: drop variant IRQ support 2018-08-20 12:28:05 -07:00
jump_label.c jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
mcount.S xtensa: add static function tracer support 2013-07-08 01:18:57 -07:00
module.c xtensa: clean up custom-controlled debug output 2017-12-16 22:37:08 -08:00
mxhead.S xtensa: drop unused sections and remapped reset handlers 2015-11-03 17:19:39 +03:00
pci-dma.c dma-mapping: zero memory returned from dma_alloc_* 2018-12-20 08:13:52 +01:00
pci.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
perf_event.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
platform.c xtensa: cleanup ccount frequency tracking 2013-07-08 01:11:37 -07:00
process.c xtensa: drop unused definitions 2019-02-07 12:35:02 -08:00
ptrace.c xtensa: implement syscall tracepoints 2018-12-17 13:50:25 -08:00
s32c1i_selftest.c xtensa: move S32C1I self-test to a separate file 2016-11-16 15:08:28 -08:00
setup.c xtensa: add exclusive atomics support 2019-05-07 10:36:31 -07:00
signal.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
smp.c xtensa: SMP: rework IPI processing 2019-02-07 12:16:17 -08:00
stacktrace.c xtensa: fix return_address 2019-04-04 11:18:55 -07:00
syscall.c xtensa: implement syscall tracepoints 2018-12-17 13:50:25 -08:00
time.c xtensa: clean up arch/xtensa/kernel/time.c 2019-02-07 12:16:49 -08:00
traps.c xtensa: simplify trap_init 2019-02-07 12:35:32 -08:00
vectors.S xtensa: use call instead of callx in assembly code 2017-12-10 14:48:52 -08:00
vmlinux.lds.S xtensa: replace variant/core.h with asm/core.h 2019-05-06 17:48:55 -07:00
xtensa_ksyms.c xtensa: use generic strncpy_from_user with KASAN 2017-12-17 15:34:57 -08:00