| /* |
| * Copyright (c) 2014 Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief ARC specific kernel interface header |
| * |
| * This header contains the ARC specific kernel interface. It is |
| * included by the kernel interface architecture-abstraction header |
| * include/arch/cpu.h) |
| */ |
| |
| #ifndef _ARC_ARCH__H_ |
| #define _ARC_ARCH__H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* APIs need to support non-byte addressible architectures */ |
| |
| #define OCTET_TO_SIZEOFUNIT(X) (X) |
| #define SIZEOFUNIT_TO_OCTET(X) (X) |
| |
| #include <sw_isr_table.h> |
| #ifdef CONFIG_CPU_ARCV2 |
| #include <arch/arc/v2/exc.h> |
| #include <arch/arc/v2/irq.h> |
| #include <arch/arc/v2/ffs.h> |
| #include <arch/arc/v2/error.h> |
| #include <arch/arc/v2/misc.h> |
| #include <arch/arc/v2/aux_regs.h> |
| #include <arch/arc/v2/arcv2_irq_unit.h> |
| #include <arch/arc/v2/asm_inline.h> |
| #include <arch/arc/v2/addr_types.h> |
| #endif |
| |
| #define STACK_ALIGN 4 |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #ifndef _ASMLANGUAGE |
| #include <irq.h> |
| |
| /* internal routine documented in C file, needed by IRQ_CONNECT() macro */ |
| extern void _irq_priority_set(unsigned int irq, unsigned int prio, |
| uint32_t flags); |
| |
| /** |
| * Configure a static interrupt. |
| * |
| * All arguments must be computable by the compiler at build time. |
| * |
| * Internally this function does a few things: |
| * |
| * 1. The enum statement has no effect but forces the compiler to only |
| * accept constant values for the irq_p parameter, very important as the |
| * numerical IRQ line is used to create a named section. |
| * |
| * 2. An instance of struct _isr_table_entry is created containing the ISR and |
| * its parameter. If you look at how _sw_isr_table is created, each entry in |
| * the array is in its own section named by the IRQ line number. What we are |
| * doing here is to override one of the default entries (which points to the |
| * spurious IRQ handler) with what was supplied here. |
| * |
| * 3. The priority level for the interrupt is configured by a call to |
| * _irq_priority_set() |
| * |
| * @param irq_p IRQ line number |
| * @param priority_p Interrupt priority, in range 0-13 |
| * @param isr_p Interrupt service routine |
| * @param isr_param_p ISR parameter |
| * @param flags_p IRQ options (ignored for now) |
| * |
| * @return The vector assigned to this interrupt |
| */ |
| #define _ARCH_IRQ_CONNECT(irq_p, priority_p, isr_p, isr_param_p, flags_p) \ |
| ({ \ |
| enum { IRQ = irq_p }; \ |
| static struct _isr_table_entry _CONCAT(_isr_irq, irq_p) \ |
| __attribute__ ((used)) \ |
| __attribute__ ((section(STRINGIFY(_CONCAT(.gnu.linkonce.isr_irq, irq_p))))) = \ |
| {isr_param_p, isr_p}; \ |
| _irq_priority_set(irq_p, priority_p, flags_p); \ |
| irq_p; \ |
| }) |
| |
| #endif |
| |
| #endif /* _ARC_ARCH__H_ */ |