Guo Ren eb2ac8c497 csky: Set regs->usp to kernel sp, when the exception is from kernel ... [ Upstream commit f8e17c17b8 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-03-12 13:00:16 +01:00
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abiv1	csky: Set regs->usp to kernel sp, when the exception is from kernel	2020-03-12 13:00:16 +01:00
abiv2	csky: Set regs->usp to kernel sp, when the exception is from kernel	2020-03-12 13:00:16 +01:00
boot	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
configs
include	csky-for-linus-5.4-rc1: arch/csky patches for 5.4-rc1	2019-09-30 10:16:17 -07:00
kernel	csky: Set regs->usp to kernel sp, when the exception is from kernel	2020-03-12 13:00:16 +01:00
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	2020-03-12 13:00:16 +01:00
Kconfig	csky: Select intc & timer drivers	2019-07-19 14:21:36 +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