esp-idf/components/esp_system/port/soc/esp32s2/highint_hdl.S
Darian Leung a5d5ee7445 change(xtensa): Deprecate ".../xtensa_context.h" include path
This commit deprecates the "freertos/xtensa_context.h" and "xtensa/xtensa_context.h"
include paths. Users should use "xtensa_context.h" instead.

- Replace legacy include paths
- Removed some unnecessary includes of "xtensa_api.h"
- Add warning to compatibility header
2023-11-30 21:58:52 +08:00

100 lines
3.1 KiB
ArmAsm

/*
* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <xtensa/coreasm.h>
#include <xtensa/corebits.h>
#include <xtensa/config/system.h>
#include "xtensa_context.h"
#include "esp_private/panic_reason.h"
#include "sdkconfig.h"
#include "soc/soc.h"
#include "soc/dport_reg.h"
/*
Interrupt , a high-priority interrupt, is used for several things:
- Cache error panic handler
- Interrupt watchdog panic handler
*/
.section .iram1,"ax"
.global xt_highint4
.type xt_highint4,@function
.align 4
xt_highint4:
/* Allocate exception frame and save minimal context. */
mov a0, sp
addi sp, sp, -XT_STK_FRMSZ
s32i a0, sp, XT_STK_A1
#if XCHAL_HAVE_WINDOWED
s32e a0, sp, -12 /* for debug backtrace */
#endif
rsr a0, PS /* save interruptee's PS */
s32i a0, sp, XT_STK_PS
rsr a0, EPC_4 /* save interruptee's PC */
s32i a0, sp, XT_STK_PC
rsr a0, EXCSAVE_4 /* save interruptee's a0 */
s32i a0, sp, XT_STK_A0
#if XCHAL_HAVE_WINDOWED
s32e a0, sp, -16 /* for debug backtrace */
#endif
s32i a12, sp, XT_STK_A12 /* _xt_context_save requires A12- */
s32i a13, sp, XT_STK_A13 /* A13 to have already been saved */
call0 _xt_context_save
/* Save vaddr into exception frame */
rsr a0, EXCVADDR
s32i a0, sp, XT_STK_EXCVADDR
/* Figure out reason, save into EXCCAUSE reg */
rsr a0, INTERRUPT
extui a0, a0, ETS_MEMACCESS_ERR_INUM, 1 /* get cacheerr int bit */
beqz a0, 1f
/* Kill this interrupt; we cannot reset it. */
rsr a0, INTENABLE
movi a4, ~(1<<ETS_MEMACCESS_ERR_INUM)
and a0, a4, a0
wsr a0, INTENABLE
movi a0, PANIC_RSN_CACHEERR
j 9f
1:
/* Set EXCCAUSE to reflect cause of the wdt int trigger */
movi a0,PANIC_RSN_INTWDT_CPU0
9:
/* Found the reason, now save it. */
s32i a0, sp, XT_STK_EXCCAUSE
/* Set up PS for C, disable all interrupts except NMI and debug, and clear EXCM. */
movi a0, PS_INTLEVEL(5) | PS_UM | PS_WOE
wsr a0, PS
//Call panic handler
mov a6,sp
call4 panicHandler
call0 _xt_context_restore
l32i a0, sp, XT_STK_PS /* retrieve interruptee's PS */
wsr a0, PS
l32i a0, sp, XT_STK_PC /* retrieve interruptee's PC */
wsr a0, EPC_4
l32i a0, sp, XT_STK_A0 /* retrieve interruptee's A0 */
l32i sp, sp, XT_STK_A1 /* remove exception frame */
rsync /* ensure PS and EPC written */
rsr a0, EXCSAVE_4 /* restore a0 */
rfi 4
/* The linker has no reason to link in this file; all symbols it exports are already defined
(weakly!) in the default int handler. Define a symbol here so we can use it to have the
linker inspect this anyway. */
.global ld_include_highint_hdl
ld_include_highint_hdl: