[PATCH] ARC: Improve cmpxchng syscall implementation

arc_usr_cmpxchg syscall is supposed to be used on platforms that lack support of Load-Locked/Store-Conditional instructions in hardware. And in that case we mimic missing hardware features with help of kernel's sycall that "atomically" checks current value in memory and then if it matches caller

Re: [PATCH] ARC: Improve cmpxchng syscall implementation

On 03/19/2018 04:00 AM, Alexey Brodkin wrote: arc_usr_cmpxchg syscall is supposed to be used on platforms that lack support of Load-Locked/Store-Conditional instructions in hardware. And in that case we mimic missing hardware features with help of kernel's sycall that "atomically" checks current

Re: [PATCH v3 0/2] Introduce DW AXI DMAC driver

On Tue, Mar 06, 2018 at 02:46:13PM +0300, Eugeniy Paltsev wrote: > This patch series add support for the DW AXI DMAC controller. > > DW AXI DMAC is a part of HSDK development board from Synopsys. > > In this driver implementation only DMA_MEMCPY transfers > are supported. Applied, thanks --