forked from luck/tmp_suning_uos_patched
4060bbe993
Now that the MIPS GIC irqchip lives in drivers/irqchip/, move its header over to include/linux/irqchip/. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8129/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* Copyright (C) 2013 Imagination Technologies
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* Author: Paul Burton <paul.burton@imgtec.com>
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*
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* Based on smp-cmp.c:
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* Copyright (C) 2007 MIPS Technologies, Inc.
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* Author: Chris Dearman (chris@mips.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/irqchip/mips-gic.h>
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#include <linux/printk.h>
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#include <asm/mips-cpc.h>
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#include <asm/smp-ops.h>
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void gic_send_ipi_single(int cpu, unsigned int action)
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{
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unsigned long flags;
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unsigned int intr;
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unsigned int core = cpu_data[cpu].core;
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pr_debug("CPU%d: %s cpu %d action %u status %08x\n",
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smp_processor_id(), __func__, cpu, action, read_c0_status());
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local_irq_save(flags);
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switch (action) {
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case SMP_CALL_FUNCTION:
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intr = plat_ipi_call_int_xlate(cpu);
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break;
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case SMP_RESCHEDULE_YOURSELF:
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intr = plat_ipi_resched_int_xlate(cpu);
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break;
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default:
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BUG();
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}
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gic_send_ipi(intr);
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if (mips_cpc_present() && (core != current_cpu_data.core)) {
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while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) {
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mips_cpc_lock_other(core);
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write_cpc_co_cmd(CPC_Cx_CMD_PWRUP);
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mips_cpc_unlock_other();
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}
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}
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local_irq_restore(flags);
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}
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void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action)
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{
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unsigned int i;
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for_each_cpu(i, mask)
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gic_send_ipi_single(i, action);
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}
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