MIPS: c-octeon: Provide alternative SMP cache flush function

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Currently c-octeon relies on octeon's own smp function to flush
I-Cache. However this function is not available on generic platform.

Just use smp_call_function_many on generic platform.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

authored by

Jiaxun Yang and committed by

Thomas Bogendoerfer 3 years ago 6e900491 f6415194

1 changed file

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arch

mips

c-octeon.c

arch/mips/mm/c-octeon.c

··· 83 83 else 84 84 mask = *cpu_online_mask; 85 85 cpumask_clear_cpu(cpu, &mask); 86 + #ifdef CONFIG_CAVIUM_OCTEON_SOC 86 87 for_each_cpu(cpu, &mask) 87 88 octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH); 89 + #else 90 + smp_call_function_many(&mask, (smp_call_func_t)octeon_local_flush_icache, 91 + NULL, 1); 92 + #endif 88 93 89 94 preempt_enable(); 90 95 #endif