From: Jiaxun Yang <jiaxun.yang@flygoat.com>
Date: Tue, 4 Apr 2023 09:33:45 +0000 (+0100)
Subject: MIPS: c-octeon: Provide alternative SMP cache flush function
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6e90049162b92e683641966e4cdc67febe3c8fc5;p=linux.git

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

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>
---

diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
index c7ed589de882a..b7393b61cfa7b 100644
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -83,8 +83,13 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma)
 	else
 		mask = *cpu_online_mask;
 	cpumask_clear_cpu(cpu, &mask);
+#ifdef CONFIG_CAVIUM_OCTEON_SOC
 	for_each_cpu(cpu, &mask)
 		octeon_send_ipi_single(cpu, SMP_ICACHE_FLUSH);
+#else
+	smp_call_function_many(&mask, (smp_call_func_t)octeon_local_flush_icache,
+			       NULL, 1);
+#endif
 
 	preempt_enable();
 #endif