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Diff: cmsis/core_caFunc.h
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- 149:156823d33999
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diff -r 21d94c44109e -r 156823d33999 cmsis/core_caFunc.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/cmsis/core_caFunc.h Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,1427 @@ +/**************************************************************************//** + * @file core_caFunc.h + * @brief CMSIS Cortex-A Core Function Access Header File + * @version V3.10 + * @date 30 Oct 2013 + * + * @note + * + ******************************************************************************/ +/* Copyright (c) 2009 - 2013 ARM LIMITED + + All rights reserved. + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + - Neither the name of ARM nor the names of its contributors may be used + to endorse or promote products derived from this software without + specific prior written permission. + * + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + ---------------------------------------------------------------------------*/ + + +#ifndef __CORE_CAFUNC_H__ +#define __CORE_CAFUNC_H__ + + +/* ########################### Core Function Access ########################### */ +/** \ingroup CMSIS_Core_FunctionInterface + \defgroup CMSIS_Core_RegAccFunctions CMSIS Core Register Access Functions + @{ + */ + +#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ +/* ARM armcc specific functions */ + +#if (__ARMCC_VERSION < 400677) + #error "Please use ARM Compiler Toolchain V4.0.677 or later!" +#endif + +#define MODE_USR 0x10 +#define MODE_FIQ 0x11 +#define MODE_IRQ 0x12 +#define MODE_SVC 0x13 +#define MODE_MON 0x16 +#define MODE_ABT 0x17 +#define MODE_HYP 0x1A +#define MODE_UND 0x1B +#define MODE_SYS 0x1F + +/** \brief Get APSR Register + + This function returns the content of the APSR Register. + + \return APSR Register value + */ +__STATIC_INLINE uint32_t __get_APSR(void) +{ + register uint32_t __regAPSR __ASM("apsr"); + return(__regAPSR); +} + + +/** \brief Get CPSR Register + + This function returns the content of the CPSR Register. + + \return CPSR Register value + */ +__STATIC_INLINE uint32_t __get_CPSR(void) +{ + register uint32_t __regCPSR __ASM("cpsr"); + return(__regCPSR); +} + +/** \brief Set Stack Pointer + + This function assigns the given value to the current stack pointer. + + \param [in] topOfStack Stack Pointer value to set + */ +register uint32_t __regSP __ASM("sp"); +__STATIC_INLINE void __set_SP(uint32_t topOfStack) +{ + __regSP = topOfStack; +} + + +/** \brief Get link register + + This function returns the value of the link register + + \return Value of link register + */ +register uint32_t __reglr __ASM("lr"); +__STATIC_INLINE uint32_t __get_LR(void) +{ + return(__reglr); +} + +/** \brief Set link register + + This function sets the value of the link register + + \param [in] lr LR value to set + */ +__STATIC_INLINE void __set_LR(uint32_t lr) +{ + __reglr = lr; +} + +/** \brief Set Process Stack Pointer + + This function assigns the given value to the USR/SYS Stack Pointer (PSP). + + \param [in] topOfProcStack USR/SYS Stack Pointer value to set + */ +__STATIC_ASM void __set_PSP(uint32_t topOfProcStack) +{ + ARM + PRESERVE8 + + BIC R0, R0, #7 ;ensure stack is 8-byte aligned + MRS R1, CPSR + CPS #MODE_SYS ;no effect in USR mode + MOV SP, R0 + MSR CPSR_c, R1 ;no effect in USR mode + ISB + BX LR + +} + +/** \brief Set User Mode + + This function changes the processor state to User Mode + */ +__STATIC_ASM void __set_CPS_USR(void) +{ + ARM + + CPS #MODE_USR + BX LR +} + + +/** \brief Enable FIQ + + This function enables FIQ interrupts by clearing the F-bit in the CPSR. + Can only be executed in Privileged modes. + */ +#define __enable_fault_irq __enable_fiq + + +/** \brief Disable FIQ + + This function disables FIQ interrupts by setting the F-bit in the CPSR. + Can only be executed in Privileged modes. + */ +#define __disable_fault_irq __disable_fiq + + +/** \brief Get FPSCR + + This function returns the current value of the Floating Point Status/Control register. + + \return Floating Point Status/Control register value + */ +__STATIC_INLINE uint32_t __get_FPSCR(void) +{ +#if (__FPU_PRESENT == 1) && (__FPU_USED == 1) + register uint32_t __regfpscr __ASM("fpscr"); + return(__regfpscr); +#else + return(0); +#endif +} + + +/** \brief Set FPSCR + + This function assigns the given value to the Floating Point Status/Control register. + + \param [in] fpscr Floating Point Status/Control value to set + */ +__STATIC_INLINE void __set_FPSCR(uint32_t fpscr) +{ +#if (__FPU_PRESENT == 1) && (__FPU_USED == 1) + register uint32_t __regfpscr __ASM("fpscr"); + __regfpscr = (fpscr); +#endif +} + +/** \brief Get FPEXC + + This function returns the current value of the Floating Point Exception Control register. + + \return Floating Point Exception Control register value + */ +__STATIC_INLINE uint32_t __get_FPEXC(void) +{ +#if (__FPU_PRESENT == 1) + register uint32_t __regfpexc __ASM("fpexc"); + return(__regfpexc); +#else + return(0); +#endif +} + + +/** \brief Set FPEXC + + This function assigns the given value to the Floating Point Exception Control register. + + \param [in] fpscr Floating Point Exception Control value to set + */ +__STATIC_INLINE void __set_FPEXC(uint32_t fpexc) +{ +#if (__FPU_PRESENT == 1) + register uint32_t __regfpexc __ASM("fpexc"); + __regfpexc = (fpexc); +#endif +} + +/** \brief Get CPACR + + This function returns the current value of the Coprocessor Access Control register. + + \return Coprocessor Access Control register value + */ +__STATIC_INLINE uint32_t __get_CPACR(void) +{ + register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2"); + return __regCPACR; +} + +/** \brief Set CPACR + + This function assigns the given value to the Coprocessor Access Control register. + + \param [in] cpacr Coprocessor Acccess Control value to set + */ +__STATIC_INLINE void __set_CPACR(uint32_t cpacr) +{ + register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2"); + __regCPACR = cpacr; + __ISB(); +} + +/** \brief Get CBAR + + This function returns the value of the Configuration Base Address register. + + \return Configuration Base Address register value + */ +__STATIC_INLINE uint32_t __get_CBAR() { + register uint32_t __regCBAR __ASM("cp15:4:c15:c0:0"); + return(__regCBAR); +} + +/** \brief Get TTBR0 + + This function returns the value of the Translation Table Base Register 0. + + \return Translation Table Base Register 0 value + */ +__STATIC_INLINE uint32_t __get_TTBR0() { + register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0"); + return(__regTTBR0); +} + +/** \brief Set TTBR0 + + This function assigns the given value to the Translation Table Base Register 0. + + \param [in] ttbr0 Translation Table Base Register 0 value to set + */ +__STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) { + register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0"); + __regTTBR0 = ttbr0; + __ISB(); +} + +/** \brief Get DACR + + This function returns the value of the Domain Access Control Register. + + \return Domain Access Control Register value + */ +__STATIC_INLINE uint32_t __get_DACR() { + register uint32_t __regDACR __ASM("cp15:0:c3:c0:0"); + return(__regDACR); +} + +/** \brief Set DACR + + This function assigns the given value to the Domain Access Control Register. + + \param [in] dacr Domain Access Control Register value to set + */ +__STATIC_INLINE void __set_DACR(uint32_t dacr) { + register uint32_t __regDACR __ASM("cp15:0:c3:c0:0"); + __regDACR = dacr; + __ISB(); +} + +/******************************** Cache and BTAC enable ****************************************************/ + +/** \brief Set SCTLR + + This function assigns the given value to the System Control Register. + + \param [in] sctlr System Control Register value to set + */ +__STATIC_INLINE void __set_SCTLR(uint32_t sctlr) +{ + register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0"); + __regSCTLR = sctlr; +} + +/** \brief Get SCTLR + + This function returns the value of the System Control Register. + + \return System Control Register value + */ +__STATIC_INLINE uint32_t __get_SCTLR() { + register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0"); + return(__regSCTLR); +} + +/** \brief Enable Caches + + Enable Caches + */ +__STATIC_INLINE void __enable_caches(void) { + // Set I bit 12 to enable I Cache + // Set C bit 2 to enable D Cache + __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2)); +} + +/** \brief Disable Caches + + Disable Caches + */ +__STATIC_INLINE void __disable_caches(void) { + // Clear I bit 12 to disable I Cache + // Clear C bit 2 to disable D Cache + __set_SCTLR( __get_SCTLR() & ~(1 << 12) & ~(1 << 2)); + __ISB(); +} + +/** \brief Enable BTAC + + Enable BTAC + */ +__STATIC_INLINE void __enable_btac(void) { + // Set Z bit 11 to enable branch prediction + __set_SCTLR( __get_SCTLR() | (1 << 11)); + __ISB(); +} + +/** \brief Disable BTAC + + Disable BTAC + */ +__STATIC_INLINE void __disable_btac(void) { + // Clear Z bit 11 to disable branch prediction + __set_SCTLR( __get_SCTLR() & ~(1 << 11)); +} + + +/** \brief Enable MMU + + Enable MMU + */ +__STATIC_INLINE void __enable_mmu(void) { + // Set M bit 0 to enable the MMU + // Set AFE bit to enable simplified access permissions model + // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking + __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29)); + __ISB(); +} + +/** \brief Disable MMU + + Disable MMU + */ +__STATIC_INLINE void __disable_mmu(void) { + // Clear M bit 0 to disable the MMU + __set_SCTLR( __get_SCTLR() & ~1); + __ISB(); +} + +/******************************** TLB maintenance operations ************************************************/ +/** \brief Invalidate the whole tlb + + TLBIALL. Invalidate the whole tlb + */ + +__STATIC_INLINE void __ca9u_inv_tlb_all(void) { + register uint32_t __TLBIALL __ASM("cp15:0:c8:c7:0"); + __TLBIALL = 0; + __DSB(); + __ISB(); +} + +/******************************** BTB maintenance operations ************************************************/ +/** \brief Invalidate entire branch predictor array + + BPIALL. Branch Predictor Invalidate All. + */ + +__STATIC_INLINE void __v7_inv_btac(void) { + register uint32_t __BPIALL __ASM("cp15:0:c7:c5:6"); + __BPIALL = 0; + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new state +} + + +/******************************** L1 cache operations ******************************************************/ + +/** \brief Invalidate the whole I$ + + ICIALLU. Instruction Cache Invalidate All to PoU + */ +__STATIC_INLINE void __v7_inv_icache_all(void) { + register uint32_t __ICIALLU __ASM("cp15:0:c7:c5:0"); + __ICIALLU = 0; + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new I cache state +} + +/** \brief Clean D$ by MVA + + DCCMVAC. Data cache clean by MVA to PoC + */ +__STATIC_INLINE void __v7_clean_dcache_mva(void *va) { + register uint32_t __DCCMVAC __ASM("cp15:0:c7:c10:1"); + __DCCMVAC = (uint32_t)va; + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Invalidate D$ by MVA + + DCIMVAC. Data cache invalidate by MVA to PoC + */ +__STATIC_INLINE void __v7_inv_dcache_mva(void *va) { + register uint32_t __DCIMVAC __ASM("cp15:0:c7:c6:1"); + __DCIMVAC = (uint32_t)va; + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Clean and Invalidate D$ by MVA + + DCCIMVAC. Data cache clean and invalidate by MVA to PoC + */ +__STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) { + register uint32_t __DCCIMVAC __ASM("cp15:0:c7:c14:1"); + __DCCIMVAC = (uint32_t)va; + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Clean and Invalidate the entire data or unified cache + + Generic mechanism for cleaning/invalidating the entire data or unified cache to the point of coherency. + */ +#pragma push +#pragma arm +__STATIC_ASM void __v7_all_cache(uint32_t op) { + ARM + + PUSH {R4-R11} + + MRC p15, 1, R6, c0, c0, 1 // Read CLIDR + ANDS R3, R6, #0x07000000 // Extract coherency level + MOV R3, R3, LSR #23 // Total cache levels << 1 + BEQ Finished // If 0, no need to clean + + MOV R10, #0 // R10 holds current cache level << 1 +Loop1 ADD R2, R10, R10, LSR #1 // R2 holds cache "Set" position + MOV R1, R6, LSR R2 // Bottom 3 bits are the Cache-type for this level + AND R1, R1, #7 // Isolate those lower 3 bits + CMP R1, #2 + BLT Skip // No cache or only instruction cache at this level + + MCR p15, 2, R10, c0, c0, 0 // Write the Cache Size selection register + ISB // ISB to sync the change to the CacheSizeID reg + MRC p15, 1, R1, c0, c0, 0 // Reads current Cache Size ID register + AND R2, R1, #7 // Extract the line length field + ADD R2, R2, #4 // Add 4 for the line length offset (log2 16 bytes) + LDR R4, =0x3FF + ANDS R4, R4, R1, LSR #3 // R4 is the max number on the way size (right aligned) + CLZ R5, R4 // R5 is the bit position of the way size increment + LDR R7, =0x7FFF + ANDS R7, R7, R1, LSR #13 // R7 is the max number of the index size (right aligned) + +Loop2 MOV R9, R4 // R9 working copy of the max way size (right aligned) + +Loop3 ORR R11, R10, R9, LSL R5 // Factor in the Way number and cache number into R11 + ORR R11, R11, R7, LSL R2 // Factor in the Set number + CMP R0, #0 + BNE Dccsw + MCR p15, 0, R11, c7, c6, 2 // DCISW. Invalidate by Set/Way + B cont +Dccsw CMP R0, #1 + BNE Dccisw + MCR p15, 0, R11, c7, c10, 2 // DCCSW. Clean by Set/Way + B cont +Dccisw MCR p15, 0, R11, c7, c14, 2 // DCCISW. Clean and Invalidate by Set/Way +cont SUBS R9, R9, #1 // Decrement the Way number + BGE Loop3 + SUBS R7, R7, #1 // Decrement the Set number + BGE Loop2 +Skip ADD R10, R10, #2 // Increment the cache number + CMP R3, R10 + BGT Loop1 + +Finished + DSB + POP {R4-R11} + BX lr + +} +#pragma pop + + +/** \brief Invalidate the whole D$ + + DCISW. Invalidate by Set/Way + */ + +__STATIC_INLINE void __v7_inv_dcache_all(void) { + __v7_all_cache(0); +} + +/** \brief Clean the whole D$ + + DCCSW. Clean by Set/Way + */ + +__STATIC_INLINE void __v7_clean_dcache_all(void) { + __v7_all_cache(1); +} + +/** \brief Clean and invalidate the whole D$ + + DCCISW. Clean and Invalidate by Set/Way + */ + +__STATIC_INLINE void __v7_clean_inv_dcache_all(void) { + __v7_all_cache(2); +} + +#include "core_ca_mmu.h" + +#elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/ + +#define __inline inline + +inline static uint32_t __disable_irq_iar() { + int irq_dis = __get_CPSR() & 0x80; // 7bit CPSR.I + __disable_irq(); + return irq_dis; +} + +#define MODE_USR 0x10 +#define MODE_FIQ 0x11 +#define MODE_IRQ 0x12 +#define MODE_SVC 0x13 +#define MODE_MON 0x16 +#define MODE_ABT 0x17 +#define MODE_HYP 0x1A +#define MODE_UND 0x1B +#define MODE_SYS 0x1F + +/** \brief Set Process Stack Pointer + + This function assigns the given value to the USR/SYS Stack Pointer (PSP). + + \param [in] topOfProcStack USR/SYS Stack Pointer value to set + */ +// from rt_CMSIS.c +__arm static inline void __set_PSP(uint32_t topOfProcStack) { +__asm( + " ARM\n" +// " PRESERVE8\n" + + " BIC R0, R0, #7 ;ensure stack is 8-byte aligned \n" + " MRS R1, CPSR \n" + " CPS #0x1F ;no effect in USR mode \n" // MODE_SYS + " MOV SP, R0 \n" + " MSR CPSR_c, R1 ;no effect in USR mode \n" + " ISB \n" + " BX LR \n"); +} + +/** \brief Set User Mode + + This function changes the processor state to User Mode + */ +// from rt_CMSIS.c +__arm static inline void __set_CPS_USR(void) { +__asm( + " ARM \n" + + " CPS #0x10 \n" // MODE_USR + " BX LR\n"); +} + +/** \brief Set TTBR0 + + This function assigns the given value to the Translation Table Base Register 0. + + \param [in] ttbr0 Translation Table Base Register 0 value to set + */ +// from mmu_Renesas_RZ_A1.c +__STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) { + __MCR(15, 0, ttbr0, 2, 0, 0); // reg to cp15 + __ISB(); +} + +/** \brief Set DACR + + This function assigns the given value to the Domain Access Control Register. + + \param [in] dacr Domain Access Control Register value to set + */ +// from mmu_Renesas_RZ_A1.c +__STATIC_INLINE void __set_DACR(uint32_t dacr) { + __MCR(15, 0, dacr, 3, 0, 0); // reg to cp15 + __ISB(); +} + + +/******************************** Cache and BTAC enable ****************************************************/ +/** \brief Set SCTLR + + This function assigns the given value to the System Control Register. + + \param [in] sctlr System Control Register value to set + */ +// from __enable_mmu() +__STATIC_INLINE void __set_SCTLR(uint32_t sctlr) { + __MCR(15, 0, sctlr, 1, 0, 0); // reg to cp15 +} + +/** \brief Get SCTLR + + This function returns the value of the System Control Register. + + \return System Control Register value + */ +// from __enable_mmu() +__STATIC_INLINE uint32_t __get_SCTLR() { + uint32_t __regSCTLR = __MRC(15, 0, 1, 0, 0); + return __regSCTLR; +} + +/** \brief Enable Caches + + Enable Caches + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __enable_caches(void) { + __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2)); +} + +/** \brief Enable BTAC + + Enable BTAC + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __enable_btac(void) { + __set_SCTLR( __get_SCTLR() | (1 << 11)); + __ISB(); +} + +/** \brief Enable MMU + + Enable MMU + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __enable_mmu(void) { + // Set M bit 0 to enable the MMU + // Set AFE bit to enable simplified access permissions model + // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking + __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29)); + __ISB(); +} + +/******************************** TLB maintenance operations ************************************************/ +/** \brief Invalidate the whole tlb + + TLBIALL. Invalidate the whole tlb + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __ca9u_inv_tlb_all(void) { + uint32_t val = 0; + __MCR(15, 0, val, 8, 7, 0); // reg to cp15 + __MCR(15, 0, val, 8, 6, 0); // reg to cp15 + __MCR(15, 0, val, 8, 5, 0); // reg to cp15 + __DSB(); + __ISB(); +} + +/******************************** BTB maintenance operations ************************************************/ +/** \brief Invalidate entire branch predictor array + + BPIALL. Branch Predictor Invalidate All. + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __v7_inv_btac(void) { + uint32_t val = 0; + __MCR(15, 0, val, 7, 5, 6); // reg to cp15 + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new state +} + + +/******************************** L1 cache operations ******************************************************/ + +/** \brief Invalidate the whole I$ + + ICIALLU. Instruction Cache Invalidate All to PoU + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __v7_inv_icache_all(void) { + uint32_t val = 0; + __MCR(15, 0, val, 7, 5, 0); // reg to cp15 + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new I cache state +} + +// from __v7_inv_dcache_all() +__arm static inline void __v7_all_cache(uint32_t op) { +__asm( + " ARM \n" + + " PUSH {R4-R11} \n" + + " MRC p15, 1, R6, c0, c0, 1\n" // Read CLIDR + " ANDS R3, R6, #0x07000000\n" // Extract coherency level + " MOV R3, R3, LSR #23\n" // Total cache levels << 1 + " BEQ Finished\n" // If 0, no need to clean + + " MOV R10, #0\n" // R10 holds current cache level << 1 + "Loop1: ADD R2, R10, R10, LSR #1\n" // R2 holds cache "Set" position + " MOV R1, R6, LSR R2 \n" // Bottom 3 bits are the Cache-type for this level + " AND R1, R1, #7 \n" // Isolate those lower 3 bits + " CMP R1, #2 \n" + " BLT Skip \n" // No cache or only instruction cache at this level + + " MCR p15, 2, R10, c0, c0, 0 \n" // Write the Cache Size selection register + " ISB \n" // ISB to sync the change to the CacheSizeID reg + " MRC p15, 1, R1, c0, c0, 0 \n" // Reads current Cache Size ID register + " AND R2, R1, #7 \n" // Extract the line length field + " ADD R2, R2, #4 \n" // Add 4 for the line length offset (log2 16 bytes) + " movw R4, #0x3FF \n" + " ANDS R4, R4, R1, LSR #3 \n" // R4 is the max number on the way size (right aligned) + " CLZ R5, R4 \n" // R5 is the bit position of the way size increment + " movw R7, #0x7FFF \n" + " ANDS R7, R7, R1, LSR #13 \n" // R7 is the max number of the index size (right aligned) + + "Loop2: MOV R9, R4 \n" // R9 working copy of the max way size (right aligned) + + "Loop3: ORR R11, R10, R9, LSL R5 \n" // Factor in the Way number and cache number into R11 + " ORR R11, R11, R7, LSL R2 \n" // Factor in the Set number + " CMP R0, #0 \n" + " BNE Dccsw \n" + " MCR p15, 0, R11, c7, c6, 2 \n" // DCISW. Invalidate by Set/Way + " B cont \n" + "Dccsw: CMP R0, #1 \n" + " BNE Dccisw \n" + " MCR p15, 0, R11, c7, c10, 2 \n" // DCCSW. Clean by Set/Way + " B cont \n" + "Dccisw: MCR p15, 0, R11, c7, c14, 2 \n" // DCCISW, Clean and Invalidate by Set/Way + "cont: SUBS R9, R9, #1 \n" // Decrement the Way number + " BGE Loop3 \n" + " SUBS R7, R7, #1 \n" // Decrement the Set number + " BGE Loop2 \n" + "Skip: ADD R10, R10, #2 \n" // increment the cache number + " CMP R3, R10 \n" + " BGT Loop1 \n" + + "Finished: \n" + " DSB \n" + " POP {R4-R11} \n" + " BX lr \n" ); +} + +/** \brief Invalidate the whole D$ + + DCISW. Invalidate by Set/Way + */ +// from system_Renesas_RZ_A1.c +__STATIC_INLINE void __v7_inv_dcache_all(void) { + __v7_all_cache(0); +} +/** \brief Clean and Invalidate D$ by MVA + + DCCIMVAC. Data cache clean and invalidate by MVA to PoC + */ +__STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) { + __MCR(15, 0, (uint32_t)va, 7, 14, 1); + __DMB(); +} + +#include "core_ca_mmu.h" + +#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/ +/* GNU gcc specific functions */ + +#define MODE_USR 0x10 +#define MODE_FIQ 0x11 +#define MODE_IRQ 0x12 +#define MODE_SVC 0x13 +#define MODE_MON 0x16 +#define MODE_ABT 0x17 +#define MODE_HYP 0x1A +#define MODE_UND 0x1B +#define MODE_SYS 0x1F + + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_irq(void) +{ + __ASM volatile ("cpsie i"); +} + +/** \brief Disable IRQ Interrupts + + This function disables IRQ interrupts by setting the I-bit in the CPSR. + Can only be executed in Privileged modes. + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __disable_irq(void) +{ + uint32_t result; + + __ASM volatile ("mrs %0, cpsr" : "=r" (result)); + __ASM volatile ("cpsid i"); + return(result & 0x80); +} + + +/** \brief Get APSR Register + + This function returns the content of the APSR Register. + + \return APSR Register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_APSR(void) +{ +#if 1 + register uint32_t __regAPSR; + __ASM volatile ("mrs %0, apsr" : "=r" (__regAPSR) ); +#else + register uint32_t __regAPSR __ASM("apsr"); +#endif + return(__regAPSR); +} + + +/** \brief Get CPSR Register + + This function returns the content of the CPSR Register. + + \return CPSR Register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CPSR(void) +{ +#if 1 + register uint32_t __regCPSR; + __ASM volatile ("mrs %0, cpsr" : "=r" (__regCPSR)); +#else + register uint32_t __regCPSR __ASM("cpsr"); +#endif + return(__regCPSR); +} + +#if 0 +/** \brief Set Stack Pointer + + This function assigns the given value to the current stack pointer. + + \param [in] topOfStack Stack Pointer value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_SP(uint32_t topOfStack) +{ + register uint32_t __regSP __ASM("sp"); + __regSP = topOfStack; +} +#endif + +/** \brief Get link register + + This function returns the value of the link register + + \return Value of link register + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_LR(void) +{ + register uint32_t __reglr __ASM("lr"); + return(__reglr); +} + +#if 0 +/** \brief Set link register + + This function sets the value of the link register + + \param [in] lr LR value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_LR(uint32_t lr) +{ + register uint32_t __reglr __ASM("lr"); + __reglr = lr; +} +#endif + +/** \brief Set Process Stack Pointer + + This function assigns the given value to the USR/SYS Stack Pointer (PSP). + + \param [in] topOfProcStack USR/SYS Stack Pointer value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_PSP(uint32_t topOfProcStack) +{ + __asm__ volatile ( + ".ARM;" + ".eabi_attribute Tag_ABI_align8_preserved,1;" + + "BIC R0, R0, #7;" /* ;ensure stack is 8-byte aligned */ + "MRS R1, CPSR;" + "CPS %0;" /* ;no effect in USR mode */ + "MOV SP, R0;" + "MSR CPSR_c, R1;" /* ;no effect in USR mode */ + "ISB;" + //"BX LR;" + : + : "i"(MODE_SYS) + : "r0", "r1"); + return; +} + +/** \brief Set User Mode + + This function changes the processor state to User Mode + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_CPS_USR(void) +{ + __asm__ volatile ( + ".ARM;" + + "CPS %0;" + //"BX LR;" + : + : "i"(MODE_USR) + : ); + return; +} + + +/** \brief Enable FIQ + + This function enables FIQ interrupts by clearing the F-bit in the CPSR. + Can only be executed in Privileged modes. + */ +#define __enable_fault_irq() __asm__ volatile ("cpsie f") + + +/** \brief Disable FIQ + + This function disables FIQ interrupts by setting the F-bit in the CPSR. + Can only be executed in Privileged modes. + */ +#define __disable_fault_irq() __asm__ volatile ("cpsid f") + + +/** \brief Get FPSCR + + This function returns the current value of the Floating Point Status/Control register. + + \return Floating Point Status/Control register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPSCR(void) +{ +#if (__FPU_PRESENT == 1) && (__FPU_USED == 1) +#if 1 + uint32_t result; + + __ASM volatile ("vmrs %0, fpscr" : "=r" (result) ); + return (result); +#else + register uint32_t __regfpscr __ASM("fpscr"); + return(__regfpscr); +#endif +#else + return(0); +#endif +} + + +/** \brief Set FPSCR + + This function assigns the given value to the Floating Point Status/Control register. + + \param [in] fpscr Floating Point Status/Control value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPSCR(uint32_t fpscr) +{ +#if (__FPU_PRESENT == 1) && (__FPU_USED == 1) +#if 1 + __ASM volatile ("vmsr fpscr, %0" : : "r" (fpscr) ); +#else + register uint32_t __regfpscr __ASM("fpscr"); + __regfpscr = (fpscr); +#endif +#endif +} + +/** \brief Get FPEXC + + This function returns the current value of the Floating Point Exception Control register. + + \return Floating Point Exception Control register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_FPEXC(void) +{ +#if (__FPU_PRESENT == 1) +#if 1 + uint32_t result; + + __ASM volatile ("vmrs %0, fpexc" : "=r" (result)); + return (result); +#else + register uint32_t __regfpexc __ASM("fpexc"); + return(__regfpexc); +#endif +#else + return(0); +#endif +} + + +/** \brief Set FPEXC + + This function assigns the given value to the Floating Point Exception Control register. + + \param [in] fpscr Floating Point Exception Control value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_FPEXC(uint32_t fpexc) +{ +#if (__FPU_PRESENT == 1) +#if 1 + __ASM volatile ("vmsr fpexc, %0" : : "r" (fpexc)); +#else + register uint32_t __regfpexc __ASM("fpexc"); + __regfpexc = (fpexc); +#endif +#endif +} + +/** \brief Get CPACR + + This function returns the current value of the Coprocessor Access Control register. + + \return Coprocessor Access Control register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CPACR(void) +{ +#if 1 + register uint32_t __regCPACR; + __ASM volatile ("mrc p15, 0, %0, c1, c0, 2" : "=r" (__regCPACR)); +#else + register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2"); +#endif + return __regCPACR; +} + +/** \brief Set CPACR + + This function assigns the given value to the Coprocessor Access Control register. + + \param [in] cpacr Coprocessor Acccess Control value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_CPACR(uint32_t cpacr) +{ +#if 1 + __ASM volatile ("mcr p15, 0, %0, c1, c0, 2" : : "r" (cpacr)); +#else + register uint32_t __regCPACR __ASM("cp15:0:c1:c0:2"); + __regCPACR = cpacr; +#endif + __ISB(); +} + +/** \brief Get CBAR + + This function returns the value of the Configuration Base Address register. + + \return Configuration Base Address register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_CBAR() { +#if 1 + register uint32_t __regCBAR; + __ASM volatile ("mrc p15, 4, %0, c15, c0, 0" : "=r" (__regCBAR)); +#else + register uint32_t __regCBAR __ASM("cp15:4:c15:c0:0"); +#endif + return(__regCBAR); +} + +/** \brief Get TTBR0 + + This function returns the value of the Translation Table Base Register 0. + + \return Translation Table Base Register 0 value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_TTBR0() { +#if 1 + register uint32_t __regTTBR0; + __ASM volatile ("mrc p15, 0, %0, c2, c0, 0" : "=r" (__regTTBR0)); +#else + register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0"); +#endif + return(__regTTBR0); +} + +/** \brief Set TTBR0 + + This function assigns the given value to the Translation Table Base Register 0. + + \param [in] ttbr0 Translation Table Base Register 0 value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_TTBR0(uint32_t ttbr0) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c2, c0, 0" : : "r" (ttbr0)); +#else + register uint32_t __regTTBR0 __ASM("cp15:0:c2:c0:0"); + __regTTBR0 = ttbr0; +#endif + __ISB(); +} + +/** \brief Get DACR + + This function returns the value of the Domain Access Control Register. + + \return Domain Access Control Register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_DACR() { +#if 1 + register uint32_t __regDACR; + __ASM volatile ("mrc p15, 0, %0, c3, c0, 0" : "=r" (__regDACR)); +#else + register uint32_t __regDACR __ASM("cp15:0:c3:c0:0"); +#endif + return(__regDACR); +} + +/** \brief Set DACR + + This function assigns the given value to the Domain Access Control Register. + + \param [in] dacr Domain Access Control Register value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_DACR(uint32_t dacr) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c3, c0, 0" : : "r" (dacr)); +#else + register uint32_t __regDACR __ASM("cp15:0:c3:c0:0"); + __regDACR = dacr; +#endif + __ISB(); +} + +/******************************** Cache and BTAC enable ****************************************************/ + +/** \brief Set SCTLR + + This function assigns the given value to the System Control Register. + + \param [in] sctlr System Control Register value to set + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __set_SCTLR(uint32_t sctlr) +{ +#if 1 + __ASM volatile ("mcr p15, 0, %0, c1, c0, 0" : : "r" (sctlr)); +#else + register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0"); + __regSCTLR = sctlr; +#endif +} + +/** \brief Get SCTLR + + This function returns the value of the System Control Register. + + \return System Control Register value + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE uint32_t __get_SCTLR() { +#if 1 + register uint32_t __regSCTLR; + __ASM volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (__regSCTLR)); +#else + register uint32_t __regSCTLR __ASM("cp15:0:c1:c0:0"); +#endif + return(__regSCTLR); +} + +/** \brief Enable Caches + + Enable Caches + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_caches(void) { + // Set I bit 12 to enable I Cache + // Set C bit 2 to enable D Cache + __set_SCTLR( __get_SCTLR() | (1 << 12) | (1 << 2)); +} + +/** \brief Disable Caches + + Disable Caches + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_caches(void) { + // Clear I bit 12 to disable I Cache + // Clear C bit 2 to disable D Cache + __set_SCTLR( __get_SCTLR() & ~(1 << 12) & ~(1 << 2)); + __ISB(); +} + +/** \brief Enable BTAC + + Enable BTAC + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_btac(void) { + // Set Z bit 11 to enable branch prediction + __set_SCTLR( __get_SCTLR() | (1 << 11)); + __ISB(); +} + +/** \brief Disable BTAC + + Disable BTAC + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_btac(void) { + // Clear Z bit 11 to disable branch prediction + __set_SCTLR( __get_SCTLR() & ~(1 << 11)); +} + + +/** \brief Enable MMU + + Enable MMU + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __enable_mmu(void) { + // Set M bit 0 to enable the MMU + // Set AFE bit to enable simplified access permissions model + // Clear TRE bit to disable TEX remap and A bit to disable strict alignment fault checking + __set_SCTLR( (__get_SCTLR() & ~(1 << 28) & ~(1 << 1)) | 1 | (1 << 29)); + __ISB(); +} + +/** \brief Disable MMU + + Disable MMU + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __disable_mmu(void) { + // Clear M bit 0 to disable the MMU + __set_SCTLR( __get_SCTLR() & ~1); + __ISB(); +} + +/******************************** TLB maintenance operations ************************************************/ +/** \brief Invalidate the whole tlb + + TLBIALL. Invalidate the whole tlb + */ + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __ca9u_inv_tlb_all(void) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c8, c7, 0" : : "r" (0)); +#else + register uint32_t __TLBIALL __ASM("cp15:0:c8:c7:0"); + __TLBIALL = 0; +#endif + __DSB(); + __ISB(); +} + +/******************************** BTB maintenance operations ************************************************/ +/** \brief Invalidate entire branch predictor array + + BPIALL. Branch Predictor Invalidate All. + */ + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_btac(void) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c7, c5, 6" : : "r" (0)); +#else + register uint32_t __BPIALL __ASM("cp15:0:c7:c5:6"); + __BPIALL = 0; +#endif + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new state +} + + +/******************************** L1 cache operations ******************************************************/ + +/** \brief Invalidate the whole I$ + + ICIALLU. Instruction Cache Invalidate All to PoU + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_icache_all(void) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c7, c5, 0" : : "r" (0)); +#else + register uint32_t __ICIALLU __ASM("cp15:0:c7:c5:0"); + __ICIALLU = 0; +#endif + __DSB(); //ensure completion of the invalidation + __ISB(); //ensure instruction fetch path sees new I cache state +} + +/** \brief Clean D$ by MVA + + DCCMVAC. Data cache clean by MVA to PoC + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_dcache_mva(void *va) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c7, c10, 1" : : "r" ((uint32_t)va)); +#else + register uint32_t __DCCMVAC __ASM("cp15:0:c7:c10:1"); + __DCCMVAC = (uint32_t)va; +#endif + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Invalidate D$ by MVA + + DCIMVAC. Data cache invalidate by MVA to PoC + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_dcache_mva(void *va) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c7, c6, 1" : : "r" ((uint32_t)va)); +#else + register uint32_t __DCIMVAC __ASM("cp15:0:c7:c6:1"); + __DCIMVAC = (uint32_t)va; +#endif + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Clean and Invalidate D$ by MVA + + DCCIMVAC. Data cache clean and invalidate by MVA to PoC + */ +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_inv_dcache_mva(void *va) { +#if 1 + __ASM volatile ("mcr p15, 0, %0, c7, c14, 1" : : "r" ((uint32_t)va)); +#else + register uint32_t __DCCIMVAC __ASM("cp15:0:c7:c14:1"); + __DCCIMVAC = (uint32_t)va; +#endif + __DMB(); //ensure the ordering of data cache maintenance operations and their effects +} + +/** \brief Clean and Invalidate the entire data or unified cache + + Generic mechanism for cleaning/invalidating the entire data or unified cache to the point of coherency. + */ +extern void __v7_all_cache(uint32_t op); + + +/** \brief Invalidate the whole D$ + + DCISW. Invalidate by Set/Way + */ + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_inv_dcache_all(void) { + __v7_all_cache(0); +} + +/** \brief Clean the whole D$ + + DCCSW. Clean by Set/Way + */ + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_dcache_all(void) { + __v7_all_cache(1); +} + +/** \brief Clean and invalidate the whole D$ + + DCCISW. Clean and Invalidate by Set/Way + */ + +__attribute__( ( always_inline ) ) __STATIC_INLINE void __v7_clean_inv_dcache_all(void) { + __v7_all_cache(2); +} + +#include "core_ca_mmu.h" + +#elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/ + +#error TASKING Compiler support not implemented for Cortex-A + +#endif + +/*@} end of CMSIS_Core_RegAccFunctions */ + + +#endif /* __CORE_CAFUNC_H__ */