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linux-next/arch/csky/mm
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
..
asid.c csky: Add new asid lib code from arm 2019-07-19 14:21:36 +08:00
cachev1.c csky: Support icache flush without specific instructions 2020-02-21 15:43:24 +08:00
cachev2.c csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS 2020-03-31 22:15:42 +08:00
context.c csky: Use generic asid algorithm to implement switch_mm 2019-07-19 14:21:36 +08:00
dma-mapping.c dma-mapping: drop the dev argument to arch_sync_dma_for_* 2019-11-20 20:31:38 +01:00
fault.c signal: Remove the task parameter from force_sig_fault 2019-05-29 09:31:43 -05:00
highmem.c csky: Separate fixaddr_init from highmem 2020-02-21 15:43:24 +08:00
init.c csky: Add setup_initrd check code 2020-02-21 15:43:25 +08:00
ioremap.c csky: use generic ioremap 2019-11-12 11:37:52 +01:00
Makefile csky: Fixup ftrace modify panic 2020-02-21 15:43:24 +08:00
syscache.c csky: Add flush_icache_mm to defer flush icache all 2020-02-21 15:43:24 +08:00
tcm.c csky: Tightly-Coupled Memory or Sram support 2020-02-21 15:43:24 +08:00
tlb.c csky: Improve tlb operation with help of asid 2019-07-19 14:21:36 +08:00