55 lines
1.2 KiB
ArmAsm
55 lines
1.2 KiB
ArmAsm
/* sw_isr_table.S - ISR table for static ISR declarations for ARC */
|
|
|
|
/*
|
|
* Copyright (c) 2015 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#define _ASMLANGUAGE
|
|
|
|
#include <toolchain.h>
|
|
#include <sections.h>
|
|
#include <arch/cpu.h>
|
|
|
|
/*
|
|
* enable preprocessor features, such
|
|
* as %expr - evaluate the expression and use it as a string
|
|
*/
|
|
.altmacro
|
|
|
|
/*
|
|
* Define an ISR table entry
|
|
* Define symbol as weak and give the section .gnu.linkonce
|
|
* prefix. This allows linker overload the symbol and the
|
|
* whole section by the one defined by a device driver
|
|
*/
|
|
.macro _isr_table_entry_declare index
|
|
WDATA(_isr_irq\index)
|
|
.section .gnu.linkonce.isr_irq\index
|
|
_isr_irq\index: .word 0xABAD1DEA, _irq_spurious
|
|
.endm
|
|
|
|
/*
|
|
* Declare the ISR table
|
|
*/
|
|
.macro _isr_table_declare from, to
|
|
counter = \from
|
|
.rept (\to - \from)
|
|
_isr_table_entry_declare %counter
|
|
counter = counter + 1
|
|
.endr
|
|
.endm
|
|
|
|
GTEXT(_irq_spurious)
|
|
GDATA(_sw_isr_table)
|
|
|
|
.section .isr_irq16
|
|
.align
|
|
_sw_isr_table:
|
|
|
|
/*In ARC architecture, IRQ 0-15 are reserved for the system and are not
|
|
assignable by the user, for that reason the isr table linker section
|
|
start at IRQ 16*/
|
|
_isr_table_declare 16 CONFIG_NUM_IRQS
|