linux-stable/arch/openrisc/kernel
Stefan Kristiansson 91993c8c2e openrisc: use shadow registers to save regs on exception
Previously, the area between 0x0-0x100 have been used as a "scratch"
memory area to temporarily store regs during exception entry. In a
multi-core environment, this will not work.

This change is to use shadow registers for nested context.

Currently only the "critical" temp load/stores are covered, the
EMERGENCY_PRINT ones are left as is (when they are used, it's game over
anyway), they need to be handled as well in the future.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-11-03 14:01:11 +09:00
..
.gitignore openrisc: Add .gitignore 2017-02-25 04:14:36 +09:00
asm-offsets.c openrisc: use kbuild.h instead of defining macros in asm-offset.c 2012-10-25 15:54:33 +02:00
dma.c treewide: Constify most dma_map_ops structures 2017-01-24 12:23:35 -05:00
entry.S scripts/spelling.txt: add "efective" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
head.S openrisc: use shadow registers to save regs on exception 2017-11-03 14:01:11 +09:00
irq.c openrisc: Get rid of handle_IRQ 2014-09-03 13:11:02 +00:00
Makefile openrisc: Use generic idle loop 2013-04-08 17:39:27 +02:00
module.c openrisc: Refactor 16-bit constant relocation 2013-11-05 16:27:55 +01:00
or32_ksyms.c openrisc: Switch to use export.h instead of module.h 2017-05-15 22:02:33 +09:00
process.c OpenRISC fixes for 4.13 2017-07-07 13:58:49 -07:00
prom.c openrisc: remove unnecessary prom.c includes 2013-10-09 11:39:01 -05:00
ptrace.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
setup.c openrisc: add cache way information to cpuinfo 2017-02-06 21:50:41 +09:00
signal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sys_call_table.c
time.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
traps.c sched/headers: Prepare to move kstack_end() from <linux/sched.h> to <linux/sched/task_stack.h> 2017-03-02 08:42:39 +01:00
vmlinux.h of/fdt: consolidate built-in dtb section variables 2014-04-30 00:59:13 -05:00
vmlinux.lds.S scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00