82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2014 Travis Geiselbrecht
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include <arch/mp.h>
|
|
|
|
#include <assert.h>
|
|
#include <trace.h>
|
|
#include <err.h>
|
|
#include <platform/interrupts.h>
|
|
#include <arch/ops.h>
|
|
|
|
#if WITH_DEV_INTERRUPT_ARM_GIC
|
|
#include <dev/interrupt/arm_gic.h>
|
|
//#else
|
|
//#error need other implementation of interrupt controller that can ipi
|
|
#endif
|
|
|
|
#define LOCAL_TRACE 0
|
|
|
|
#define GIC_IPI_BASE (14)
|
|
|
|
status_t arch_mp_send_ipi(mp_cpu_mask_t target, mp_ipi_t ipi)
|
|
{
|
|
LTRACEF("target 0x%x, ipi %u\n", target, ipi);
|
|
|
|
#if WITH_DEV_INTERRUPT_ARM_GIC
|
|
uint gic_ipi_num = ipi + GIC_IPI_BASE;
|
|
|
|
/* filter out targets outside of the range of cpus we care about */
|
|
target &= ((1UL << SMP_MAX_CPUS) - 1);
|
|
if (target != 0) {
|
|
LTRACEF("target 0x%x, gic_ipi %u\n", target, gic_ipi_num);
|
|
arm_gic_sgi(gic_ipi_num, ARM_GIC_SGI_FLAG_NS, target);
|
|
}
|
|
#endif
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
enum handler_return arm_ipi_generic_handler(void *arg)
|
|
{
|
|
LTRACEF("cpu %u, arg %p\n", arch_curr_cpu_num(), arg);
|
|
|
|
return INT_NO_RESCHEDULE;
|
|
}
|
|
|
|
enum handler_return arm_ipi_reschedule_handler(void *arg)
|
|
{
|
|
LTRACEF("cpu %u, arg %p\n", arch_curr_cpu_num(), arg);
|
|
|
|
return mp_mbx_reschedule_irq();
|
|
}
|
|
|
|
void arch_mp_init_percpu(void)
|
|
{
|
|
register_int_handler(MP_IPI_GENERIC + GIC_IPI_BASE, &arm_ipi_generic_handler, 0);
|
|
register_int_handler(MP_IPI_RESCHEDULE + GIC_IPI_BASE, &arm_ipi_reschedule_handler, 0);
|
|
|
|
//unmask_interrupt(MP_IPI_GENERIC);
|
|
//unmask_interrupt(MP_IPI_RESCHEDULE);
|
|
}
|
|
|