Guo Ren dd7c983e78 csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS ... If ICACHE_INS is not supported, we use IPI to sync icache on each core. But ftrace_modify_code is called from stop_machine from default implementation of arch_ftrace_update_code and stop_machine callback is irq_disabled. When you call ipi with irq_disabled, a deadlock will happen. We couldn't use icache_flush with irq_disabled, but startup make_nop is specific case and it needn't ipi other cores. Signed-off-by: Guo Ren <guoren@linux.alibaba.com>		2020-03-31 22:15:42 +08:00
..
abiv1	csky: Add flush_icache_mm to defer flush icache all	2020-02-21 15:43:24 +08:00
abiv2	csky: Implement ftrace with regs	2020-03-08 20:55:14 +08:00
boot	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
configs	csky: Minimize defconfig to support buildroot config.fragment	2020-02-21 15:43:25 +08:00
include	csky: Implement ftrace with regs	2020-03-08 20:55:14 +08:00
kernel	csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS	2020-03-31 22:15:42 +08:00
lib	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
mm	csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS	2020-03-31 22:15:42 +08:00
Kconfig	csky: Implement ftrace with regs	2020-03-08 20:55:14 +08:00
Kconfig.debug	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.platforms	csky/Kconfig: Add Kconfig.platforms to support some drivers	2020-02-21 15:43:24 +08:00
Makefile	kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG	2019-06-09 15:08:18 +09:00