Stafford Horne 489e0f802d openrisc: add 1 and 2 byte cmpxchg support ...

OpenRISC only supports hardware instructions that perform 4 byte atomic
operations.  For enabling qrwlocks for upcoming SMP support 1 and 2 byte
implementations are needed.  To do this we leverage the 4 byte atomic
operations and shift/mask the 1 and 2 byte areas as needed.

This heavily borrows ideas and routines from sh and mips, which do
something similar.

Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Stafford Horne <shorne@gmail.com>

2017-11-03 14:01:12 +09:00

..

bitops

openrisc: add atomic bitops

2017-02-25 04:12:38 +09:00

asm-offsets.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

atomic.h

openrisc: add optimized atomic operations

2017-02-25 04:14:06 +09:00

bitops.h

openrisc: add atomic bitops

2017-02-25 04:12:38 +09:00

cache.h

openrisc: Define __ro_after_init to avoid crash

2016-11-06 08:01:12 -08:00

cmpxchg.h

openrisc: add 1 and 2 byte cmpxchg support

2017-11-03 14:01:12 +09:00

cpuinfo.h

openrisc: add cache way information to cpuinfo

2017-02-06 21:50:41 +09:00

delay.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

dma-mapping.h

openrisc: remove arch-specific dma_supported implementation

2017-06-28 06:54:44 -07:00

elf.h

default SET_PERSONALITY() in linux/elf.h

2013-02-26 02:46:08 -05:00

fixmap.h

openrisc: explicitly include linux/bug.h in asm/fixmap.h

2017-07-08 04:35:17 +09:00

futex.h

futex: Remove duplicated code and fix undefined behaviour

2017-08-25 22:49:59 +02:00

io.h

asm-generic/io.h: remove asm/cacheflush.h include

2012-10-25 16:06:57 +02:00

irq.h

openrisc: Get rid of handle_IRQ

2014-09-03 13:11:02 +00:00

irqflags.h

OpenRISC: IRQ

2011-07-22 18:46:33 +02:00

Kbuild

openrisc: move generic-y of exported headers to uapi/asm/Kbuild

2017-07-11 21:33:50 +09:00

linkage.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

mmu_context.h

OpenRISC: Memory management

2011-07-22 18:46:28 +02:00

mmu.h

OpenRISC: Memory management

2011-07-22 18:46:28 +02:00

page.h

openrisc: drop wrongly typed definition of page_to_virt()

2016-04-22 10:08:34 +01:00

pgalloc.h

openrisc: Consolidate setup to use memblock instead of bootmem

2016-12-12 23:10:00 +09:00

pgtable.h

openrisc: add forward declaration for struct vm_area_struct

2017-09-11 07:22:05 +09:00

processor.h

arch: remove unused macro/function thread_saved_pc()

2017-06-28 16:13:57 -07:00

ptrace.h

UAPI: (Scripted) Disintegrate arch/openrisc/include/asm

2012-10-09 09:47:18 +01:00

serial.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

spinlock.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

spr_defs.h

openrisc: Fix the bitmask for the unit present register

2017-02-25 04:14:34 +09:00

spr.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00

string.h

openrisc: Add optimized memcpy routine

2017-02-25 04:14:36 +09:00

syscall.h

ARCH: AUDIT: implement syscall_get_arch for all arches

2014-09-23 16:20:10 -04:00

syscalls.h

openrisc: switch to use of generic fork and clone

2012-11-28 23:43:40 -05:00

thread_info.h

arch: Remove exec_domain from remaining archs

2015-04-12 21:03:30 +02:00

timex.h

OpenRISC: Timekeeping

2011-07-22 18:46:32 +02:00

tlb.h

OpenRISC: Memory management

2011-07-22 18:46:28 +02:00

tlbflush.h

OpenRISC: Memory management

2011-07-22 18:46:28 +02:00

uaccess.h

kill strlen_user()

2017-05-15 23:40:22 -04:00

unaligned.h

OpenRISC: Headers

2011-07-22 18:46:39 +02:00