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/*
* Copyright (C) 2012 ARM Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ASM_HARDIRQ_H
#define __ASM_HARDIRQ_H
#include <linux/cache.h>
#include <linux/percpu.h>
#include <linux/threads.h>
#include <asm/barrier.h>
#include <asm/irq.h>
#include <asm/kvm_arm.h>
#include <asm/sysreg.h>
#define NR_IPI 7
typedef struct {
unsigned int __softirq_pending;
unsigned int ipi_irqs[NR_IPI];
} ____cacheline_aligned irq_cpustat_t;
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
#define __inc_irq_stat(cpu, member) __IRQ_STAT(cpu, member)++
#define __get_irq_stat(cpu, member) __IRQ_STAT(cpu, member)
u64 smp_irq_stat_cpu(unsigned int cpu);
#define arch_irq_stat_cpu smp_irq_stat_cpu
#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
struct nmi_ctx {
u64 hcr;
};
DECLARE_PER_CPU(struct nmi_ctx, nmi_contexts);
#define arch_nmi_enter() \
do { \
if (is_kernel_in_hyp_mode()) { \
struct nmi_ctx *nmi_ctx = this_cpu_ptr(&nmi_contexts); \
nmi_ctx->hcr = read_sysreg(hcr_el2); \
if (!(nmi_ctx->hcr & HCR_TGE)) { \
write_sysreg(nmi_ctx->hcr | HCR_TGE, hcr_el2); \
isb(); \
} \
} \
} while (0)
#define arch_nmi_exit() \
do { \
if (is_kernel_in_hyp_mode()) { \
struct nmi_ctx *nmi_ctx = this_cpu_ptr(&nmi_contexts); \
if (!(nmi_ctx->hcr & HCR_TGE)) \
write_sysreg(nmi_ctx->hcr, hcr_el2); \
} \
} while (0)
static inline void ack_bad_irq(unsigned int irq)
{
extern unsigned long irq_err_count;
irq_err_count++;
}
#endif /* __ASM_HARDIRQ_H */
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