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hv: softirq: move softirq.c to common directory

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Softirq is not x86 architectural related.

Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
Reviewed-by: Jason Chen CJ <jason.cj.chen@intel.com>
This commit is contained in:
Li, Fei1
2018-07-30 15:56:59 +08:00
committed by lijinxia
parent dec24a9f9f
commit 073583cc41
6 changed files with 4 additions and 2 deletions
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94
hypervisor/arch/x86/softirq.c
View File

@@ -1,94 +0,0 @@
/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <hypervisor.h>
void disable_softirq(uint16_t cpu_id)
{
bitmap_clear_lock(SOFTIRQ_ATOMIC, &per_cpu(softirq_pending, cpu_id));
}
void enable_softirq(uint16_t cpu_id)
{
bitmap_set_lock(SOFTIRQ_ATOMIC, &per_cpu(softirq_pending, cpu_id));
}
void init_softirq(void)
{
uint16_t pcpu_id;
for (pcpu_id = 0U; pcpu_id < phys_cpu_num; pcpu_id++) {
per_cpu(softirq_pending, pcpu_id) = 0UL;
bitmap_set_lock(SOFTIRQ_ATOMIC, &per_cpu(softirq_pending, pcpu_id));
}
}
void raise_softirq(uint16_t softirq_id)
{
uint16_t cpu_id = get_cpu_id();
uint64_t *bitmap = &per_cpu(softirq_pending, cpu_id);
if (cpu_id >= phys_cpu_num) {
return;
}
bitmap_set_lock(softirq_id, bitmap);
}
void exec_softirq(void)
{
uint16_t cpu_id = get_cpu_id();
volatile uint64_t *bitmap = &per_cpu(softirq_pending, cpu_id);
uint16_t softirq_id;
if (cpu_id >= phys_cpu_num) {
return;
}
if (((*bitmap) & SOFTIRQ_MASK) == 0UL) {
return;
}
/* Disable softirq
* SOFTIRQ_ATOMIC bit = 0 means softirq already in execution
*/
if (!bitmap_test_and_clear_lock(SOFTIRQ_ATOMIC, bitmap)) {
return;
}
again:
CPU_IRQ_ENABLE();
while (1) {
softirq_id = ffs64(*bitmap);
if ((softirq_id == INVALID_BIT_INDEX) || (softirq_id >= SOFTIRQ_MAX)) {
break;
}
bitmap_clear_lock(softirq_id, bitmap);
switch (softirq_id) {
case SOFTIRQ_TIMER:
timer_softirq(cpu_id);
break;
case SOFTIRQ_DEV_ASSIGN:
ptdev_softirq(cpu_id);
break;
default:
break;
}
}
CPU_IRQ_DISABLE();
if (((*bitmap) & SOFTIRQ_MASK) != 0U) {
goto again;
}
enable_softirq(cpu_id);
}

1
hypervisor/arch/x86/timer.c
View File

@@ -5,6 +5,7 @@
*/
#include <hypervisor.h>
#include <softirq.h>
#define MAX_TIMER_ACTIONS 32U
#define TIMER_IRQ (NR_IRQS - 1U)