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✏️ /usr/src/linux-headers-6.8.0-124/arch/arc/include/asm/irqflags-arcv2.h

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/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
 */

#ifndef __ASM_IRQFLAGS_ARCV2_H
#define __ASM_IRQFLAGS_ARCV2_H

#include <asm/arcregs.h>

/* status32 Bits */
#define STATUS_AD_BIT	19   /* Disable Align chk: core supports non-aligned */
#define STATUS_IE_BIT	31

#define STATUS_AD_MASK		(1<<STATUS_AD_BIT)
#define STATUS_IE_MASK		(1<<STATUS_IE_BIT)

/* status32 Bits as encoded/expected by CLRI/SETI */
#define CLRI_STATUS_IE_BIT	4

#define CLRI_STATUS_E_MASK	0xF
#define CLRI_STATUS_IE_MASK	(1 << CLRI_STATUS_IE_BIT)

#define AUX_USER_SP		0x00D
#define AUX_IRQ_CTRL		0x00E
#define AUX_IRQ_ACT		0x043	/* Active Intr across all levels */
#define AUX_IRQ_LVL_PEND	0x200	/* Pending Intr across all levels */
#define AUX_IRQ_HINT		0x201	/* For generating Soft Interrupts */
#define AUX_IRQ_PRIORITY	0x206
#define ICAUSE			0x40a
#define AUX_IRQ_SELECT		0x40b
#define AUX_IRQ_ENABLE		0x40c

/* Was Intr taken in User Mode */
#define AUX_IRQ_ACT_BIT_U	31

/*
 * Hardware supports 16 priorities (0 highest, 15 lowest)
 * Linux by default runs at 1, priority 0 reserved for NMI style interrupts
 */
#define ARCV2_IRQ_DEF_PRIO	1

/* seed value for status register */
#ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
#define __AD_ENB	STATUS_AD_MASK
#else
#define __AD_ENB	0
#endif

#define ISA_INIT_STATUS_BITS	(STATUS_IE_MASK | __AD_ENB | \
					(ARCV2_IRQ_DEF_PRIO << 1))

#ifndef __ASSEMBLY__

/*
 * Save IRQ state and disable IRQs
 */
static inline long arch_local_irq_save(void)
{
	unsigned long flags;

__asm__ __volatile__("	clri %0	\n" : "=r" (flags) : : "memory");

return flags;
}

/*
 * restore saved IRQ state
 */
static inline void arch_local_irq_restore(unsigned long flags)
{
	__asm__ __volatile__("	seti %0	\n" : : "r" (flags) : "memory");
}

/*
 * Unconditionally Enable IRQs
 */
static inline void arch_local_irq_enable(void)
{
	unsigned int irqact = read_aux_reg(AUX_IRQ_ACT);

if (irqact & 0xffff)
		write_aux_reg(AUX_IRQ_ACT, irqact & ~0xffff);

__asm__ __volatile__("	seti	\n" : : : "memory");
}

/*
 * Unconditionally Disable IRQs
 */
static inline void arch_local_irq_disable(void)
{
	__asm__ __volatile__("	clri	\n" : : : "memory");
}

/*
 * save IRQ state
 */
static inline long arch_local_save_flags(void)
{
	unsigned long temp;

__asm__ __volatile__(
	"	lr  %0, [status32]	\n"
	: "=&r"(temp)
	:
	: "memory");

/* To be compatible with irq_save()/irq_restore()
	 * encode the irq bits as expected by CLRI/SETI
	 * (this was needed to make CONFIG_TRACE_IRQFLAGS work)
	 */
	temp = (1 << 5) |
		((!!(temp & STATUS_IE_MASK)) << CLRI_STATUS_IE_BIT) |
		((temp >> 1) & CLRI_STATUS_E_MASK);
	return temp;
}

/*
 * Query IRQ state
 */
static inline int arch_irqs_disabled_flags(unsigned long flags)
{
	return !(flags & CLRI_STATUS_IE_MASK);
}

static inline int arch_irqs_disabled(void)
{
	return arch_irqs_disabled_flags(arch_local_save_flags());
}

static inline void arc_softirq_trigger(int irq)
{
	write_aux_reg(AUX_IRQ_HINT, irq);
}

static inline void arc_softirq_clear(int irq)
{
	write_aux_reg(AUX_IRQ_HINT, 0);
}

#else

#ifdef CONFIG_TRACE_IRQFLAGS

.macro TRACE_ASM_IRQ_DISABLE
	bl	trace_hardirqs_off
.endm

.macro TRACE_ASM_IRQ_ENABLE
	bl	trace_hardirqs_on
.endm

#else

.macro TRACE_ASM_IRQ_DISABLE
.endm

.macro TRACE_ASM_IRQ_ENABLE
.endm

#endif
.macro IRQ_DISABLE  scratch
	clri
	TRACE_ASM_IRQ_DISABLE
.endm

.macro IRQ_ENABLE  scratch
	TRACE_ASM_IRQ_ENABLE
	seti
.endm

#endif	/* __ASSEMBLY__ */

#endif

Batal

⬅ include 77 item

Nama	Tipe	Ukuran	Diubah	Perm	Aksi
📄 Kbuild	file	153 B	10/03/24 20:38	0644	✏️ ⬇
📄 arcregs.h	h	9.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 asm-offsets.h	h	165 B	10/03/24 20:38	0644	✏️ ⬇
📄 asserts.h	h	958 B	10/03/24 20:38	0644	✏️ ⬇
📄 atomic-llsc.h	h	2.7 KB	10/03/24 20:38	0644	✏️ ⬇
📄 atomic-spinlock.h	h	2.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 atomic.h	h	658 B	10/03/24 20:38	0644	✏️ ⬇
📄 atomic64-arcv2.h	h	5.6 KB	10/03/24 20:38	0644	✏️ ⬇
📄 barrier.h	h	1.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 bitops.h	h	3.8 KB	26/05/26 09:55	0644	✏️ ⬇
📄 bug.h	h	819 B	10/03/24 20:38	0644	✏️ ⬇
📄 cache.h	h	3.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 cacheflush.h	h	2.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 checksum.h	h	2.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 cmpxchg.h	h	3.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 current.h	h	548 B	10/03/24 20:38	0644	✏️ ⬇
📄 delay.h	h	1.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 disasm.h	h	3.7 KB	10/03/24 20:38	0644	✏️ ⬇
📄 dma.h	h	218 B	10/03/24 20:38	0644	✏️ ⬇
📄 dsp-impl.h	h	3.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 dsp.h	h	796 B	10/03/24 20:38	0644	✏️ ⬇
📄 dwarf.h	h	1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 elf.h	h	1.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 entry-arcv2.h	h	7.7 KB	10/03/24 20:38	0644	✏️ ⬇
📄 entry-compact.h	h	9.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 entry.h	h	4.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 exec.h	h	264 B	10/03/24 20:38	0644	✏️ ⬇
📄 fb.h	h	132 B	10/03/24 20:38	0644	✏️ ⬇
📄 fpu.h	h	1.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 futex.h	h	3.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 highmem.h	h	1.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 hugepage.h	h	2.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 io.h	h	6.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 irq.h	h	736 B	10/03/24 20:38	0644	✏️ ⬇
📄 irqflags-arcv2.h	h	3.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 irqflags-compact.h	h	4.3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 irqflags.h	h	363 B	10/03/24 20:38	0644	✏️ ⬇
📄 jump_label.h	h	1.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 kdebug.h	h	254 B	10/03/24 20:38	0644	✏️ ⬇
📄 kgdb.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 kprobes.h	h	1.1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 linkage.h	h	1.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 mach_desc.h	h	1.9 KB	10/03/24 20:38	0644	✏️ ⬇
📄 mmu-arcv2.h	h	2.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 mmu.h	h	470 B	10/03/24 20:38	0644	✏️ ⬇
📄 mmu_context.h	h	5.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 module.h	h	428 B	10/03/24 20:38	0644	✏️ ⬇
📄 page.h	h	3.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pci.h	h	360 B	10/03/24 20:38	0644	✏️ ⬇
📄 perf_event.h	h	2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pgalloc.h	h	2.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pgtable-bits-arcv2.h	h	4.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pgtable-levels.h	h	5.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 pgtable.h	h	780 B	10/03/24 20:38	0644	✏️ ⬇
📄 processor.h	h	3 KB	10/03/24 20:38	0644	✏️ ⬇
📄 ptrace.h	h	4.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 sections.h	h	261 B	10/03/24 20:38	0644	✏️ ⬇
📄 serial.h	h	498 B	10/03/24 20:38	0644	✏️ ⬇
📄 setup.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 shmparam.h	h	296 B	10/03/24 20:38	0644	✏️ ⬇
📄 smp.h	h	3.8 KB	10/03/24 20:38	0644	✏️ ⬇
📄 spinlock.h	h	8.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 spinlock_types.h	h	905 B	10/03/24 20:38	0644	✏️ ⬇
📄 stacktrace.h	h	1.2 KB	10/03/24 20:38	0644	✏️ ⬇
📄 string.h	h	1 KB	10/03/24 20:38	0644	✏️ ⬇
📄 switch_to.h	h	553 B	10/03/24 20:38	0644	✏️ ⬇
📄 syscall.h	h	1.7 KB	10/03/24 20:38	0644	✏️ ⬇
📄 syscalls.h	h	547 B	10/03/24 20:38	0644	✏️ ⬇
📄 thread_info.h	h	3.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 timex.h	h	362 B	10/03/24 20:38	0644	✏️ ⬇
📄 tlb.h	h	262 B	10/03/24 20:38	0644	✏️ ⬇
📄 tlbflush.h	h	1.6 KB	10/03/24 20:38	0644	✏️ ⬇
📄 uaccess.h	h	15.5 KB	10/03/24 20:38	0644	✏️ ⬇
📄 unaligned.h	h	625 B	10/03/24 20:38	0644	✏️ ⬇
📄 unwind.h	h	3.4 KB	10/03/24 20:38	0644	✏️ ⬇
📄 vermagic.h	h	157 B	10/03/24 20:38	0644	✏️ ⬇
📄 vmalloc.h	h	87 B	10/03/24 20:38	0644	✏️ ⬇

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