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arch:xtensa_panic: use right interrupt pointer in xtensa_panic

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When enable interrupt stack, use a12 instead of sp

Signed-off-by: zhuyanlin <zhuyanlin1@xiaomi.com>
This commit is contained in:
zhuyanlin
2022-01-11 15:16:13 +08:00
committed by Abdelatif Guettouche
parent 88f5a209ce
commit a1a9ce3d1e
1 changed files with 7 additions and 2 deletions
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arch/xtensa/src/common/xtensa_panic.S
+7 -2
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@@ -130,6 +130,10 @@ _xtensa_panic:
s32i a3, sp, (4 * REG_A3) s32i a3, sp, (4 * REG_A3)
call0 _xtensa_context_save /* Save full register state */ call0 _xtensa_context_save /* Save full register state */
/* Dispatch the sycall as with other interrupts. */
mov a12, sp /* a12 = address of register save area */
/* Switch to an interrupt stack if we have one */ /* Switch to an interrupt stack if we have one */
#if CONFIG_ARCH_INTERRUPTSTACK > 15 #if CONFIG_ARCH_INTERRUPTSTACK > 15
@@ -152,6 +156,7 @@ _xtensa_panic:
#endif #endif
wsr a0, PS wsr a0, PS
rsync
/* Call C panic handler: Arg1 (A2) = Exception code; Arg 2 (A3) = start /* Call C panic handler: Arg1 (A2) = Exception code; Arg 2 (A3) = start
* of the register save area. * of the register save area.
@@ -159,11 +164,11 @@ _xtensa_panic:
#ifdef __XTENSA_CALL0_ABI__ #ifdef __XTENSA_CALL0_ABI__
rsr a2, EXCSAVE_1 rsr a2, EXCSAVE_1
mov a3, sp mov a3, a12
call0 xtensa_panic /* Call xtensa_panic. Should not return */ call0 xtensa_panic /* Call xtensa_panic. Should not return */
#else #else
rsr a6, EXCSAVE_1 rsr a6, EXCSAVE_1
mov a7, sp mov a7, a12
call4 xtensa_panic /* Call xtensa_panic. Should not return */ call4 xtensa_panic /* Call xtensa_panic. Should not return */
#endif #endif