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linux/arch/csky
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Guo Ren f8e17c17b8 csky: Set regs->usp to kernel sp, when the exception is from kernel 
In the past, we didn't care about kernel sp when saving pt_reg. But in some
cases, we still need pt_reg->usp to represent the kernel stack before enter
exception.

For cmpxhg in atomic.S, we need save and restore usp for above.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
2020-02-21 15:43:24 +08:00
..
abiv1
csky: Set regs->usp to kernel sp, when the exception is from kernel
2020-02-21 15:43:24 +08:00
abiv2
csky: Set regs->usp to kernel sp, when the exception is from kernel
2020-02-21 15:43:24 +08:00
boot
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
configs
…
include
csky: Separate fixaddr_init from highmem
2020-02-21 15:43:24 +08:00
kernel
csky: Set regs->usp to kernel sp, when the exception is from kernel
2020-02-21 15:43:24 +08:00
lib
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
mm
csky/mm: Fixup export invalid_pte_table symbol
2020-02-21 15:43:24 +08:00
Kconfig
csky: Separate fixaddr_init from highmem
2020-02-21 15:43:24 +08:00
Kconfig.debug
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Makefile
kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG
2019-06-09 15:08:18 +09:00