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* Copyright (c) 2006 Jakub Jermar
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @addtogroup sparc64
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#include <interrupt.h>
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#include <arch/sun4v/hypercall.h>
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#include <arch/sun4v/ipi.h>
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#define IPI_MESSAGE_SIZE 8
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static uint64_t data[MAX_NUM_STRANDS][IPI_MESSAGE_SIZE]
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__attribute__ ((aligned (64)));
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static uint16_t ipi_cpu_list[MAX_NUM_STRANDS][MAX_NUM_STRANDS];
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* Sends an inter-processor interrupt to all virtual processors whose IDs are
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* @param func address of the function to be invoked on the recipient
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* @param cpu_list list of CPU IDs (16-bit identifiers) of the recipients
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* @param list_size number of recipients (number of valid cpu_list entries)
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* @return error code returned by the CPU_MONDO_SEND hypercall
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uint64_t ipi_brodcast_to(void (*func)(void), uint16_t cpu_list[MAX_NUM_STRANDS],
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data[CPU->arch.id][0] = (uint64_t) func;
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for (i = 0; i < list_size; i++) {
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ipi_cpu_list[CPU->arch.id][i] = cpu_list[i];
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return __hypercall_fast3(CPU_MONDO_SEND, list_size,
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KA2PA(ipi_cpu_list[CPU->arch.id]), KA2PA(data[CPU->arch.id]));
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* Send an inter-processor interrupt to a particular CPU.
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* @param func address of the function to be invoked on the recipient
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* @param cpu_is CPU ID (16-bit identifier) of the recipient
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* @return error code returned by the CPU_MONDO_SEND hypercall
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uint64_t ipi_unicast_to(void (*func)(void), uint16_t cpu_id) {
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ipi_cpu_list[CPU->arch.id][0] = cpu_id;
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return ipi_brodcast_to(func, ipi_cpu_list[CPU->arch.id], 1);
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* Deliver IPI to all processors except the current one.
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* We assume that interrupts are disabled.
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* @param ipi IPI number.
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void ipi_broadcast_arch(int ipi)
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case IPI_TLB_SHOOTDOWN:
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func = tlb_shootdown_ipi_recv;
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panic("Unknown IPI (%d).\n", ipi);
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for (i = 0; i < config.cpu_active; i++) {
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if (&cpus[i] == CPU) {
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ipi_cpu_list[CPU->id][idx] = (uint16_t) cpus[i].id;
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ipi_brodcast_to(func, ipi_cpu_list[CPU->arch.id], idx);
added
removed
kernel/arch/sparc64/src/smp/sun4v/ipi.c
