OpenCloudOS-Kernel/arch/arc
Liav Rehana 28923f6b74 ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit
Preserve eflags and gpa1 aux during entry/exit into kernel as these
could be modified by kernel mode

These registers used by compare exchange instructions.
  - GPA1 is used for compare value,
  - EFLAGS got bit reflects atomic operation response.

EFLAGS is zeroed for each new user task so it won't get its
parent value.

Signed-off-by: Liav Rehana <liavr@mellanox.com>
Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2017-08-28 15:17:36 -07:00
..
boot ARC: [plat-axs10x]: prepare dts files for enabling PAE40 on axs103 2017-08-04 13:49:23 +05:30
configs ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30
include ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit 2017-08-28 15:17:36 -07:00
kernel ARC: [plat-eznps] handle extra aux regs #2: kernel/entry exit 2017-08-28 15:17:36 -07:00
lib ARC: dw2 unwind: enable cfi pseudo ops in string lib 2016-09-30 14:48:22 -07:00
mm ARC: set boot print log level to PR_INFO 2017-08-28 15:17:36 -07:00
oprofile ARC: OProfile support 2013-02-15 23:16:00 +05:30
plat-axs10x ARC: move mcip.h into include/soc and adjust the includes 2016-11-30 11:54:25 -08:00
plat-eznps ARC: [plat-eznps] handle extra aux regs #1: save/restore on context switch 2017-08-28 15:17:36 -07:00
plat-sim ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30
plat-tb10x arc: select GPIOLIB directly 2016-04-26 14:07:59 +02:00
Kbuild ARC: Build system: Makefiles, Kconfig, Linker script 2013-02-11 20:00:25 +05:30
Kconfig ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30
Kconfig.debug ARC: With earlycon in use, retire EARLY_PRINTK 2015-05-11 11:20:21 +05:30
Makefile ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30