/**************************************************************************** * arch/arm/include/armv8-m/irq_cmnvector.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __ARCH_ARM_INCLUDE_ARMV8_M_IRQ_CMNVECTOR_H #define __ARCH_ARM_INCLUDE_ARMV8_M_IRQ_CMNVECTOR_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Pre-processor Prototypes ****************************************************************************/ /* IRQ Stack Frame Format: */ /* The following additional registers are stored by the interrupt handling * logic. */ #define REG_R13 (0) /* R13 = SP at time of interrupt */ #ifdef CONFIG_ARMV8M_USEBASEPRI # define REG_BASEPRI (1) /* BASEPRI */ #else # define REG_PRIMASK (1) /* PRIMASK */ #endif #define REG_R4 (2) /* R4 */ #define REG_R5 (3) /* R5 */ #define REG_R6 (4) /* R6 */ #define REG_R7 (5) /* R7 */ #define REG_R8 (6) /* R8 */ #define REG_R9 (7) /* R9 */ #define REG_R10 (8) /* R10 */ #define REG_R11 (9) /* R11 */ #define REG_EXC_RETURN (10) /* EXC_RETURN */ #define SW_INT_REGS (11) #ifdef CONFIG_ARCH_FPU /* If the MCU supports a floating point unit, then it will be necessary * to save the state of the non-volatile registers before calling code * that may save and overwrite them. */ # define REG_S16 (SW_INT_REGS + 0) /* S16 */ # define REG_S17 (SW_INT_REGS + 1) /* S17 */ # define REG_S18 (SW_INT_REGS + 2) /* S18 */ # define REG_S19 (SW_INT_REGS + 3) /* S19 */ # define REG_S20 (SW_INT_REGS + 4) /* S20 */ # define REG_S21 (SW_INT_REGS + 5) /* S21 */ # define REG_S22 (SW_INT_REGS + 6) /* S22 */ # define REG_S23 (SW_INT_REGS + 7) /* S23 */ # define REG_S24 (SW_INT_REGS + 8) /* S24 */ # define REG_S25 (SW_INT_REGS + 9) /* S25 */ # define REG_S26 (SW_INT_REGS + 10) /* S26 */ # define REG_S27 (SW_INT_REGS + 11) /* S27 */ # define REG_S28 (SW_INT_REGS + 12) /* S28 */ # define REG_S29 (SW_INT_REGS + 13) /* S29 */ # define REG_S30 (SW_INT_REGS + 14) /* S30 */ # define REG_S31 (SW_INT_REGS + 15) /* S31 */ # define SW_FPU_REGS (16) #else # define SW_FPU_REGS (0) #endif /* The total number of registers saved by software */ #ifdef CONFIG_ARMV8M_STACKCHECK_HARDWARE # define REG_SPLIM (SW_INT_REGS + SW_FPU_REGS + 0) /* REG_SPLIM */ # define SW_XCPT_REGS (SW_INT_REGS + SW_FPU_REGS + 1) #else # define SW_XCPT_REGS (SW_INT_REGS + SW_FPU_REGS) #endif #define SW_XCPT_SIZE (4 * SW_XCPT_REGS) /* On entry into an IRQ, the hardware automatically saves the following * registers on the stack in this (address) order: */ #define REG_R0 (SW_XCPT_REGS + 0) /* R0 */ #define REG_R1 (SW_XCPT_REGS + 1) /* R1 */ #define REG_R2 (SW_XCPT_REGS + 2) /* R2 */ #define REG_R3 (SW_XCPT_REGS + 3) /* R3 */ #define REG_R12 (SW_XCPT_REGS + 4) /* R12 */ #define REG_R14 (SW_XCPT_REGS + 5) /* R14 = LR */ #define REG_R15 (SW_XCPT_REGS + 6) /* R15 = PC */ #define REG_XPSR (SW_XCPT_REGS + 7) /* xPSR */ #define HW_INT_REGS (8) #ifdef CONFIG_ARCH_FPU /* If the FPU is enabled, the hardware also saves the volatile FP registers. */ # define REG_S0 (SW_XCPT_REGS + 8) /* S0 */ # define REG_S1 (SW_XCPT_REGS + 9) /* S1 */ # define REG_S2 (SW_XCPT_REGS + 10) /* S2 */ # define REG_S3 (SW_XCPT_REGS + 11) /* S3 */ # define REG_S4 (SW_XCPT_REGS + 12) /* S4 */ # define REG_S5 (SW_XCPT_REGS + 13) /* S5 */ # define REG_S6 (SW_XCPT_REGS + 14) /* S6 */ # define REG_S7 (SW_XCPT_REGS + 15) /* S7 */ # define REG_S8 (SW_XCPT_REGS + 16) /* S8 */ # define REG_S9 (SW_XCPT_REGS + 17) /* S9 */ # define REG_S10 (SW_XCPT_REGS + 18) /* S10 */ # define REG_S11 (SW_XCPT_REGS + 19) /* S11 */ # define REG_S12 (SW_XCPT_REGS + 20) /* S12 */ # define REG_S13 (SW_XCPT_REGS + 21) /* S13 */ # define REG_S14 (SW_XCPT_REGS + 22) /* S14 */ # define REG_S15 (SW_XCPT_REGS + 23) /* S15 */ # define REG_FPSCR (SW_XCPT_REGS + 24) /* FPSCR */ # define REG_FP_RESERVED (SW_XCPT_REGS + 25) /* Reserved */ # define HW_FPU_REGS (18) #else # define HW_FPU_REGS (0) #endif #define HW_XCPT_REGS (HW_INT_REGS + HW_FPU_REGS) #define HW_XCPT_SIZE (4 * HW_XCPT_REGS) #define XCPTCONTEXT_REGS (HW_XCPT_REGS + SW_XCPT_REGS) #define XCPTCONTEXT_SIZE (4 * XCPTCONTEXT_REGS) /**************************************************************************** * Public Types ****************************************************************************/ /**************************************************************************** * Inline functions ****************************************************************************/ /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Public Function Prototypes ****************************************************************************/ #endif /* __ARCH_ARM_INCLUDE_ARMV8_M_IRQ_CMNVECTOR_H */