aboutsummaryrefslogtreecommitdiffstats
path: root/os/ports/GCC/PPC/ivor.s
diff options
context:
space:
mode:
Diffstat (limited to 'os/ports/GCC/PPC/ivor.s')
-rw-r--r--os/ports/GCC/PPC/ivor.s224
1 files changed, 0 insertions, 224 deletions
diff --git a/os/ports/GCC/PPC/ivor.s b/os/ports/GCC/PPC/ivor.s
deleted file mode 100644
index 46dc66bf5..000000000
--- a/os/ports/GCC/PPC/ivor.s
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file PPC/ivor.s
- * @brief Kernel ISRs.
- *
- * @addtogroup PPC_CORE
- * @{
- */
-
-/*
- * Imports the PPC configuration headers.
- */
-#define _FROM_ASM_
-#include "chconf.h"
-#include "chcore.h"
-
-#if !defined(__DOXYGEN__)
- /*
- * INTC registers address.
- */
- .equ INTC_IACKR, 0xfff48010
- .equ INTC_EOIR, 0xfff48018
-
- .section .handlers, "ax"
-
-#if PPC_SUPPORTS_DECREMENTER
- /*
- * _IVOR10 handler (Book-E decrementer).
- */
- .align 4
- .globl _IVOR10
- .type _IVOR10, @function
-_IVOR10:
- /* Creation of the external stack frame (extctx structure).*/
- stwu %sp, -80(%sp) /* Size of the extctx structure.*/
-#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
- e_stmvsrrw 8(%sp) /* Saves PC, MSR. */
- e_stmvsprw 16(%sp) /* Saves CR, LR, CTR, XER. */
- e_stmvgprw 32(%sp) /* Saves GPR0, GPR3...GPR12. */
-#else /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
- stw %r0, 32(%sp) /* Saves GPR0. */
- mfSRR0 %r0
- stw %r0, 8(%sp) /* Saves PC. */
- mfSRR1 %r0
- stw %r0, 12(%sp) /* Saves MSR. */
- mfCR %r0
- stw %r0, 16(%sp) /* Saves CR. */
- mfLR %r0
- stw %r0, 20(%sp) /* Saves LR. */
- mfCTR %r0
- stw %r0, 24(%sp) /* Saves CTR. */
- mfXER %r0
- stw %r0, 28(%sp) /* Saves XER. */
- stw %r3, 36(%sp) /* Saves GPR3...GPR12. */
- stw %r4, 40(%sp)
- stw %r5, 44(%sp)
- stw %r6, 48(%sp)
- stw %r7, 52(%sp)
- stw %r8, 56(%sp)
- stw %r9, 60(%sp)
- stw %r10, 64(%sp)
- stw %r11, 68(%sp)
- stw %r12, 72(%sp)
-#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
-
- /* Reset DIE bit in TSR register.*/
- lis %r3, 0x0800 /* DIS bit mask. */
- mtspr 336, %r3 /* TSR register. */
-
-#if CH_DBG_SYSTEM_STATE_CHECK
- bl dbg_check_enter_isr
- bl dbg_check_lock_from_isr
-#endif
- bl chSysTimerHandlerI
-#if CH_DBG_SYSTEM_STATE_CHECK
- bl dbg_check_unlock_from_isr
- bl dbg_check_leave_isr
-#endif
-
- /* System tick handler invocation.*/
-#if CH_DBG_SYSTEM_STATE_CHECK
- bl dbg_check_lock
-#endif
- bl chSchIsPreemptionRequired
- cmpli cr0, %r3, 0
- beq cr0, _ivor_exit
- bl chSchDoReschedule
- b _ivor_exit
-#endif /* PPC_SUPPORTS_DECREMENTER */
-
- /*
- * _IVOR4 handler (Book-E external interrupt).
- */
- .align 4
- .globl _IVOR4
- .type _IVOR4, @function
-_IVOR4:
- /* Creation of the external stack frame (extctx structure).*/
- stwu %sp, -80(%sp) /* Size of the extctx structure.*/
-#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
- e_stmvsrrw 8(%sp) /* Saves PC, MSR. */
- e_stmvsprw 16(%sp) /* Saves CR, LR, CTR, XER. */
- e_stmvgprw 32(%sp) /* Saves GPR0, GPR3...GPR12. */
-#else /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
- stw %r0, 32(%sp) /* Saves GPR0. */
- mfSRR0 %r0
- stw %r0, 8(%sp) /* Saves PC. */
- mfSRR1 %r0
- stw %r0, 12(%sp) /* Saves MSR. */
- mfCR %r0
- stw %r0, 16(%sp) /* Saves CR. */
- mfLR %r0
- stw %r0, 20(%sp) /* Saves LR. */
- mfCTR %r0
- stw %r0, 24(%sp) /* Saves CTR. */
- mfXER %r0
- stw %r0, 28(%sp) /* Saves XER. */
- stw %r3, 36(%sp) /* Saves GPR3...GPR12. */
- stw %r4, 40(%sp)
- stw %r5, 44(%sp)
- stw %r6, 48(%sp)
- stw %r7, 52(%sp)
- stw %r8, 56(%sp)
- stw %r9, 60(%sp)
- stw %r10, 64(%sp)
- stw %r11, 68(%sp)
- stw %r12, 72(%sp)
-#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
-
- /* Software vector address from the INTC register.*/
- lis %r3, INTC_IACKR@h
- ori %r3, %r3, INTC_IACKR@l /* IACKR register address. */
- lwz %r3, 0(%r3) /* IACKR register value. */
- lwz %r3, 0(%r3)
- mtCTR %r3 /* Software handler address. */
-
-#if PPC_USE_IRQ_PREEMPTION
- /* Allows preemption while executing the software handler.*/
- wrteei 1
-#endif
-
- /* Exectes the software handler.*/
- bctrl
-
-#if PPC_USE_IRQ_PREEMPTION
- /* Prevents preemption again.*/
- wrteei 0
-#endif
-
- /* Informs the INTC that the interrupt has been served.*/
- mbar 0
- lis %r3, INTC_EOIR@h
- ori %r3, %r3, INTC_EOIR@l
- stw %r3, 0(%r3) /* Writing any value should do. */
-
- /* Verifies if a reschedule is required.*/
-#if CH_DBG_SYSTEM_STATE_CHECK
- bl dbg_check_lock
-#endif
- bl chSchIsPreemptionRequired
- cmpli cr0, %r3, 0
- beq cr0, _ivor_exit
- bl chSchDoReschedule
-
- /* Context restore.*/
- .globl _ivor_exit
-_ivor_exit:
-#if CH_DBG_SYSTEM_STATE_CHECK
- bl dbg_check_unlock
-#endif
-#if PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI
- e_lmvgprw 32(%sp) /* Restores GPR0, GPR3...GPR12. */
- e_lmvsprw 16(%sp) /* Restores CR, LR, CTR, XER. */
- e_lmvsrrw 8(%sp) /* Restores PC, MSR. */
-#else /*!(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
- lwz %r3, 36(%sp) /* Restores GPR3...GPR12. */
- lwz %r4, 40(%sp)
- lwz %r5, 44(%sp)
- lwz %r6, 48(%sp)
- lwz %r7, 52(%sp)
- lwz %r8, 56(%sp)
- lwz %r9, 60(%sp)
- lwz %r10, 64(%sp)
- lwz %r11, 68(%sp)
- lwz %r12, 72(%sp)
- lwz %r0, 8(%sp)
- mtSRR0 %r0 /* Restores PC. */
- lwz %r0, 12(%sp)
- mtSRR1 %r0 /* Restores MSR. */
- lwz %r0, 16(%sp)
- mtCR %r0 /* Restores CR. */
- lwz %r0, 20(%sp)
- mtLR %r0 /* Restores LR. */
- lwz %r0, 24(%sp)
- mtCTR %r0 /* Restores CTR. */
- lwz %r0, 28(%sp)
- mtXER %r0 /* Restores XER. */
- lwz %r0, 32(%sp) /* Restores GPR0. */
-#endif /* !(PPC_USE_VLE && PPC_SUPPORTS_VLE_MULTI) */
- addi %sp, %sp, 80 /* Back to the previous frame. */
- rfi
-
-#endif /* !defined(__DOXYGEN__) */
-
-/** @} */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-30 16:37:40 +0000