| Paul Burton | 72e2014 | 2014-01-15 10:31:50 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 Imagination Technologies |
| 3 | * Author: Paul Burton <paul.burton@imgtec.com> |
| 4 | * |
| 5 | * Based on smp-cmp.c: |
| 6 | * Copyright (C) 2007 MIPS Technologies, Inc. |
| 7 | * Author: Chris Dearman (chris@mips.com) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your |
| 12 | * option) any later version. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/printk.h> |
| 16 | |
| 17 | #include <asm/gic.h> |
| 18 | #include <asm/smp-ops.h> |
| 19 | |
| 20 | void gic_send_ipi_single(int cpu, unsigned int action) |
| 21 | { |
| 22 | unsigned long flags; |
| 23 | unsigned int intr; |
| 24 | |
| 25 | pr_debug("CPU%d: %s cpu %d action %u status %08x\n", |
| 26 | smp_processor_id(), __func__, cpu, action, read_c0_status()); |
| 27 | |
| 28 | local_irq_save(flags); |
| 29 | |
| 30 | switch (action) { |
| 31 | case SMP_CALL_FUNCTION: |
| 32 | intr = plat_ipi_call_int_xlate(cpu); |
| 33 | break; |
| 34 | |
| 35 | case SMP_RESCHEDULE_YOURSELF: |
| 36 | intr = plat_ipi_resched_int_xlate(cpu); |
| 37 | break; |
| 38 | |
| 39 | default: |
| 40 | BUG(); |
| 41 | } |
| 42 | |
| 43 | gic_send_ipi(intr); |
| 44 | local_irq_restore(flags); |
| 45 | } |
| 46 | |
| 47 | void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action) |
| 48 | { |
| 49 | unsigned int i; |
| 50 | |
| 51 | for_each_cpu(i, mask) |
| 52 | gic_send_ipi_single(i, action); |
| 53 | } |