riscv: cleanup the default power off implementation (3320648e) · Commits · 戴 / test

Move the sbi poweroff to a separate function and file that is only compiled if CONFIG_SBI is set. Signed-off-by:

Atish Patra <atish.patra@wdc.com> [paul.walmsley@sifive.com: split the WFI fix into a separate patch] Signed-off-by:

arch/riscv/kernel/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -41,5 +41,6 @@ obj-$(CONFIG_DYNAMIC_FTRACE) += mcount-dyn.o
		obj-$(CONFIG_PERF_EVENTS) += perf_event.o
		obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o
		obj-$(CONFIG_HAVE_PERF_REGS) += perf_regs.o
		obj-$(CONFIG_RISCV_SBI) += sbi.o

		clean:

+0 −2

Original line number	Diff line number	Diff line
		@@ -5,11 +5,9 @@

		#include <linux/reboot.h>
		#include <linux/pm.h>
		#include <asm/sbi.h>

		static void default_power_off(void)
		{
		sbi_shutdown();
		while (1)
		wait_for_interrupt();
		}

0 → 100644

+17 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only

		#include <linux/init.h>
		#include <linux/pm.h>
		#include <asm/sbi.h>

		static void sbi_power_off(void)
		{
		sbi_shutdown();
		}

		static int __init sbi_init(void)
		{
		pm_power_off = sbi_power_off;
		return 0;
		}
		early_initcall(sbi_init);