MIPS: Loongson: Add NMI handler support (b392ee07) · Commits · 戴 / test

Signed-off-by:

Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J . Hill <Steven.Hill@cavium.com> Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16587/ Signed-off-by:

Ralf Baechle <ralf@linux-mips.org>

arch/mips/loongson64/common/init.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -10,13 +10,25 @@

		#include <linux/bootmem.h>
		#include <asm/bootinfo.h>
		#include <asm/traps.h>
		#include <asm/smp-ops.h>
		#include <asm/cacheflush.h>

		#include <loongson.h>

		/* Loongson CPU address windows config space base address */
		unsigned long __maybe_unused _loongson_addrwincfg_base;

		static void __init mips_nmi_setup(void)
		{
		void *base;
		extern char except_vec_nmi;

		base = (void *)(CAC_BASE + 0x380);
		memcpy(base, &except_vec_nmi, 0x80);
		flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
		}

		void __init prom_init(void)
		{
		#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
		@@ -40,6 +52,7 @@ void __init prom_init(void)
		/init the uart base address /
		prom_init_uart_base();
		register_smp_ops(&loongson3_smp_ops);
		board_nmi_handler_setup = mips_nmi_setup;
		}

		void __init prom_free_prom_memory(void)

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