diff options
Diffstat (limited to 'libcpu')
| -rw-r--r-- | libcpu/aarch64/cortex-a53/SConscript | 1 | ||||
| -rw-r--r-- | libcpu/aarch64/cortex-a53/cache.S | 151 | ||||
| -rw-r--r-- | libcpu/aarch64/cortex-a53/mmu.c | 94 | ||||
| -rw-r--r-- | libcpu/aarch64/cortex-a53/mmu.h | 47 | ||||
| -rw-r--r-- | libcpu/arm/cortex-a53/cp15.h | 168 | ||||
| -rw-r--r-- | libcpu/arm/cortex-a53/cpu.c | 91 | ||||
| -rw-r--r-- | libcpu/arm/cortex-a53/interrupt.c | 186 | ||||
| -rw-r--r-- | libcpu/arm/cortex-a53/interrupt.h | 18 | ||||
| -rw-r--r-- | libcpu/arm/cortex-a53/mmu.c | 188 |
9 files changed, 292 insertions, 652 deletions
diff --git a/libcpu/aarch64/cortex-a53/SConscript b/libcpu/aarch64/cortex-a53/SConscript index 57a5accc5c..75e170a0cf 100644 --- a/libcpu/aarch64/cortex-a53/SConscript +++ b/libcpu/aarch64/cortex-a53/SConscript @@ -7,6 +7,7 @@ context_gcc.S vector_gcc.S entry_point.S cpu_gcc.S +cache.S ''') CPPPATH = [cwd] diff --git a/libcpu/aarch64/cortex-a53/cache.S b/libcpu/aarch64/cortex-a53/cache.S new file mode 100644 index 0000000000..7f295a2b02 --- /dev/null +++ b/libcpu/aarch64/cortex-a53/cache.S @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2006-2020, RT-Thread Development Team + * + * SPDX-License-Identifier: Apache-2.0 + * + * Change Logs: + * Date Author Notes + * 2020-03-17 bigmagic first version + */ + +/* + * void __asm_dcache_level(level) + * + * flush or invalidate one level cache. + * + * x0: cache level + * x1: 0 clean & invalidate, 1 invalidate only + * x2~x9: clobbered + */ +.globl __asm_dcache_level +__asm_dcache_level: + lsl x12, x0, #1 + msr csselr_el1, x12 /* select cache level */ + isb /* sync change of cssidr_el1 */ + mrs x6, ccsidr_el1 /* read the new cssidr_el1 */ + and x2, x6, #7 /* x2 <- log2(cache line size)-4 */ + add x2, x2, #4 /* x2 <- log2(cache line size) */ + mov x3, #0x3ff + and x3, x3, x6, lsr #3 /* x3 <- max number of #ways */ + clz w5, w3 /* bit position of #ways */ + mov x4, #0x7fff + and x4, x4, x6, lsr #13 /* x4 <- max number of #sets */ + /* x12 <- cache level << 1 */ + /* x2 <- line length offset */ + /* x3 <- number of cache ways - 1 */ + /* x4 <- number of cache sets - 1 */ + /* x5 <- bit position of #ways */ + +loop_set: + mov x6, x3 /* x6 <- working copy of #ways */ +loop_way: + lsl x7, x6, x5 + orr x9, x12, x7 /* map way and level to cisw value */ + lsl x7, x4, x2 + orr x9, x9, x7 /* map set number to cisw value */ + tbz w1, #0, 1f + dc isw, x9 + b 2f +1: dc cisw, x9 /* clean & invalidate by set/way */ +2: subs x6, x6, #1 /* decrement the way */ + b.ge loop_way + subs x4, x4, #1 /* decrement the set */ + b.ge loop_set + + ret + +/* + * void __asm_flush_dcache_all(int invalidate_only) + * + * x0: 0 clean & invalidate, 1 invalidate only + * + * flush or invalidate all data cache by SET/WAY. + */ +.globl __asm_dcache_all +__asm_dcache_all: + mov x1, x0 + dsb sy + mrs x10, clidr_el1 /* read clidr_el1 */ + lsr x11, x10, #24 + and x11, x11, #0x7 /* x11 <- loc */ + cbz x11, finished /* if loc is 0, exit */ + mov x15, lr + mov x0, #0 /* start flush at cache level 0 */ + /* x0 <- cache level */ + /* x10 <- clidr_el1 */ + /* x11 <- loc */ + /* x15 <- return address */ + +loop_level: + lsl x12, x0, #1 + add x12, x12, x0 /* x0 <- tripled cache level */ + lsr x12, x10, x12 + and x12, x12, #7 /* x12 <- cache type */ + cmp x12, #2 + b.lt skip /* skip if no cache or icache */ + bl __asm_dcache_level /* x1 = 0 flush, 1 invalidate */ +skip: + add x0, x0, #1 /* increment cache level */ + cmp x11, x0 + b.gt loop_level + + mov x0, #0 + msr csselr_el1, x0 /* restore csselr_el1 */ + dsb sy + isb + mov lr, x15 + +finished: + ret + +.globl __asm_flush_dcache_all +__asm_flush_dcache_all: + mov x0, #0 + b __asm_dcache_all + +.globl __asm_invalidate_dcache_all +__asm_invalidate_dcache_all: + mov x0, #0x1 + b __asm_dcache_all + +/* + * void __asm_flush_dcache_range(start, end) + * + * clean & invalidate data cache in the range + * + * x0: start address + * x1: end address + */ +.globl __asm_flush_dcache_range +__asm_flush_dcache_range: + mrs x3, ctr_el0 + lsr x3, x3, #16 + and x3, x3, #0xf + mov x2, #4 + lsl x2, x2, x3 /* cache line size */ + + /* x2 <- minimal cache line size in cache system */ + sub x3, x2, #1 + bic x0, x0, x3 +1: dc civac, x0 /* clean & invalidate data or unified cache */ + add x0, x0, x2 + cmp x0, x1 + b.lo 1b + dsb sy + ret + +/* + * void __asm_invalidate_icache_all(void) + * + * invalidate all tlb entries. + */ +.globl __asm_invalidate_icache_all +__asm_invalidate_icache_all: + ic ialluis + isb sy + ret + +.globl __asm_flush_l3_cache +__asm_flush_l3_cache: + mov x0, #0 /* return status as success */ + ret
\ No newline at end of file diff --git a/libcpu/aarch64/cortex-a53/mmu.c b/libcpu/aarch64/cortex-a53/mmu.c index aab6bf9ebe..b799143084 100644 --- a/libcpu/aarch64/cortex-a53/mmu.c +++ b/libcpu/aarch64/cortex-a53/mmu.c @@ -9,6 +9,7 @@ */ #include <mmu.h> #include <stddef.h> +#include <rthw.h> #define TTBR_CNP 1 @@ -35,6 +36,13 @@ static unsigned long main_tbl[512 * 20] __attribute__((aligned (4096))); int free_idx = 1; +void __asm_invalidate_icache_all(void); +void __asm_flush_dcache_all(void); +int __asm_flush_l3_cache(void); +void __asm_flush_dcache_range(unsigned long long start, unsigned long long end); +void __asm_invalidate_dcache_all(void); +void __asm_invalidate_icache_all(void); + void mmu_memset(char *dst, char v, size_t len) { while (len--) @@ -50,6 +58,20 @@ static unsigned long get_free_page(void) return (unsigned long)(main_tbl + __page_off); } + +static inline unsigned int get_sctlr(void) +{ + unsigned int val; + asm volatile("mrs %0, sctlr_el1" : "=r" (val) : : "cc"); + return val; +} + +static inline void set_sctlr(unsigned int val) +{ + asm volatile("msr sctlr_el1, %0" : : "r" (val) : "cc"); + asm volatile("isb"); +} + void mmu_init(void) { unsigned long val64; @@ -101,6 +123,9 @@ void mmu_enable(void) __asm__ volatile("mrs %0, SCTLR_EL1\n":"=r"(val32)); val32 |= 0x1005; //enable mmu, I C M __asm__ volatile("dmb sy\n msr SCTLR_EL1, %0\nisb sy\n"::"r"(val32)); + rt_hw_icache_enable(); + rt_hw_dcache_enable(); + } static int map_single_page_2M(unsigned long* lv0_tbl, unsigned long va, unsigned long pa, unsigned long attr) @@ -271,3 +296,72 @@ void armv8_map(unsigned long va, unsigned long pa, unsigned long size, unsigned map_region(va, pa, size, attr); } +void rt_hw_dcache_enable(void) +{ + if (!(get_sctlr() & CR_M)) + { + rt_kprintf("please init mmu!\n"); + } + else + { + set_sctlr(get_sctlr() | CR_C); + } +} + +void rt_hw_dcache_flush_all(void) +{ + int ret; + + __asm_flush_dcache_all(); + ret = __asm_flush_l3_cache(); + if (ret) + { + rt_kprintf("flushing dcache returns 0x%x\n", ret); + } + else + { + rt_kprintf("flushing dcache successfully.\n"); + } +} + +void rt_hw_dcache_flush_range(unsigned long start_addr, unsigned long size) +{ + __asm_flush_dcache_range(start_addr, start_addr + size); +} +void rt_hw_dcache_invalidate_range(unsigned long start_addr,unsigned long size) +{ + __asm_flush_dcache_range(start_addr, start_addr + size); +} + +void rt_hw_dcache_invalidate_all(void) +{ + __asm_invalidate_dcache_all(); +} + +void rt_hw_dcache_disable(void) +{ + /* if cache isn't enabled no need to disable */ + if(!(get_sctlr() & CR_C)) + { + rt_kprintf("need enable cache!\n"); + return; + } + set_sctlr(get_sctlr() & ~CR_C); +} + +//icache +void rt_hw_icache_enable(void) +{ + __asm_invalidate_icache_all(); + set_sctlr(get_sctlr() | CR_I); +} + +void rt_hw_icache_invalidate_all(void) +{ + __asm_invalidate_icache_all(); +} + +void rt_hw_icache_disable(void) +{ + set_sctlr(get_sctlr() & ~CR_I); +}
\ No newline at end of file diff --git a/libcpu/aarch64/cortex-a53/mmu.h b/libcpu/aarch64/cortex-a53/mmu.h index 61d64164b1..6a66472c79 100644 --- a/libcpu/aarch64/cortex-a53/mmu.h +++ b/libcpu/aarch64/cortex-a53/mmu.h @@ -11,6 +11,37 @@ #ifndef __MMU_H__ #define __MMU_H__ +/* + * CR1 bits (CP#15 CR1) + */ +#define CR_M (1 << 0) /* MMU enable */ +#define CR_A (1 << 1) /* Alignment abort enable */ +#define CR_C (1 << 2) /* Dcache enable */ +#define CR_W (1 << 3) /* Write buffer enable */ +#define CR_P (1 << 4) /* 32-bit exception handler */ +#define CR_D (1 << 5) /* 32-bit data address range */ +#define CR_L (1 << 6) /* Implementation defined */ +#define CR_B (1 << 7) /* Big endian */ +#define CR_S (1 << 8) /* System MMU protection */ +#define CR_R (1 << 9) /* ROM MMU protection */ +#define CR_F (1 << 10) /* Implementation defined */ +#define CR_Z (1 << 11) /* Implementation defined */ +#define CR_I (1 << 12) /* Icache enable */ +#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */ +#define CR_RR (1 << 14) /* Round Robin cache replacement */ +#define CR_L4 (1 << 15) /* LDR pc can set T bit */ +#define CR_DT (1 << 16) +#define CR_IT (1 << 18) +#define CR_ST (1 << 19) +#define CR_FI (1 << 21) /* Fast interrupt (lower latency mode) */ +#define CR_U (1 << 22) /* Unaligned access operation */ +#define CR_XP (1 << 23) /* Extended page tables */ +#define CR_VE (1 << 24) /* Vectored interrupts */ +#define CR_EE (1 << 25) /* Exception (Big) Endian */ +#define CR_TRE (1 << 28) /* TEX remap enable */ +#define CR_AFE (1 << 29) /* Access flag enable */ +#define CR_TE (1 << 30) /* Thumb exception enable */ + #define MMU_LEVEL_MASK 0x1ffUL #define MMU_MAP_ERROR_VANOTALIGN -1 #define MMU_MAP_ERROR_PANOTALIGN -2 @@ -20,7 +51,7 @@ #define MEM_ATTR_MEMORY ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x1UL << 2)) #define MEM_ATTR_IO ((0x1UL << 10) | (0x2UL << 8) | (0x0UL << 6) | (0x2UL << 2)) -#define BUS_ADDRESS(phys) (((phys) & ~0xC0000000) | 0xC0000000) +#define BUS_ADDRESS(phys) (((phys) & ~0xC0000000) | 0xC0000000) void mmu_init(void); @@ -30,4 +61,18 @@ int armv8_map_2M(unsigned long va, unsigned long pa, int count, unsigned long at void armv8_map(unsigned long va, unsigned long pa, unsigned long size, unsigned long attr); +//dcache +void rt_hw_dcache_enable(void); +void rt_hw_dcache_flush_all(void); +void rt_hw_dcache_flush_range(unsigned long start_addr, unsigned long size); +void rt_hw_dcache_invalidate_range(unsigned long start_addr,unsigned long size); +void rt_hw_dcache_invalidate_all(void); +void rt_hw_dcache_disable(void); + +//icache +void rt_hw_icache_enable(void); +void rt_hw_icache_invalidate_all(void); +void rt_hw_icache_disable(void); + + #endif /*__MMU_H__*/ diff --git a/libcpu/arm/cortex-a53/cp15.h b/libcpu/arm/cortex-a53/cp15.h deleted file mode 100644 index 14b85b7e64..0000000000 --- a/libcpu/arm/cortex-a53/cp15.h +++ /dev/null @@ -1,168 +0,0 @@ -/* - * Copyright (c) 2006-2019, RT-Thread Development Team - * - * SPDX-License-Identifier: Apache-2.0 - * - * Change Logs: - * Date Author Notes - * 2011-09-15 Bernard first version - */ -#include "raspi.h" -#ifndef __CP15_H__ -#define __CP15_H__ - -#ifndef __STATIC_FORCEINLINE -#define __STATIC_FORCEINLINE __attribute__((always_inline)) static inline -#endif - -#define __WFI() __asm__ volatile ("wfi":::"memory") - -#define __WFE() __asm__ volatile ("wfe":::"memory") - -#define __SEV() __asm__ volatile ("sev") - -__STATIC_FORCEINLINE void __ISB(void) -{ - __asm__ volatile ("isb 0xF":::"memory"); -} - - -/** - \brief Data Synchronization Barrier - \details Acts as a special kind of Data Memory Barrier. - It completes when all explicit memory accesses before this instruction complete. - */ -__STATIC_FORCEINLINE void __DSB(void) -{ - __asm__ volatile ("dsb 0xF":::"memory"); -} - -/** - \brief Data Memory Barrier - \details Ensures the apparent order of the explicit memory operations before - and after the instruction, without ensuring their completion. - */ - -__STATIC_FORCEINLINE void __DMB(void) -{ - __asm__ volatile ("dmb 0xF":::"memory"); -} - - -#ifdef RT_USING_SMP -static inline void send_ipi_msg(int cpu, int ipi_vector) -{ - IPI_MAILBOX_SET(cpu) = 1 << ipi_vector; -} - -static inline void setup_bootstrap_addr(int cpu, int addr) -{ - CORE_MAILBOX3_SET(cpu) = addr; -} - -static inline void enable_cpu_ipi_intr(int cpu) -{ - COREMB_INTCTL(cpu) = IPI_MAILBOX_INT_MASK; -} - -static inline void enable_cpu_timer_intr(int cpu) -{ - CORETIMER_INTCTL(cpu) = 0x8; -} - -static inline void enable_cntv(void) -{ - rt_uint32_t cntv_ctl; - cntv_ctl = 1; - asm volatile ("mcr p15, 0, %0, c14, c3, 1" :: "r"(cntv_ctl)); // write CNTV_CTL -} - -static inline void disable_cntv(void) -{ - rt_uint32_t cntv_ctl; - cntv_ctl = 0; - asm volatile ("mcr p15, 0, %0, c14, c3, 1" :: "r"(cntv_ctl)); // write CNTV_CTL -} - -static inline void mask_cntv(void) -{ - rt_uint32_t cntv_ctl; - cntv_ctl = 2; - asm volatile ("mcr p15, 0, %0, c14, c3, 1" :: "r"(cntv_ctl)); // write CNTV_CTL -} - -static inline void unmask_cntv(void) -{ - rt_uint32_t cntv_ctl; - cntv_ctl = 1; - asm volatile ("mcr p15, 0, %0, c14, c3, 1" :: "r"(cntv_ctl)); // write CNTV_CTL -} - -static inline rt_uint64_t read_cntvct(void) -{ - rt_uint32_t val,val1; - asm volatile ("mrrc p15, 1, %0, %1, c14" : "=r" (val),"=r" (val1)); - return (val); -} - -static inline rt_uint64_t read_cntvoff(void) -{ - - rt_uint64_t val; - asm volatile ("mrrc p15, 4, %Q0, %R0, c14" : "=r" (val)); - return (val); -} - -static inline rt_uint32_t read_cntv_tval(void) -{ - rt_uint32_t val; - asm volatile ("mrc p15, 0, %0, c14, c3, 0" : "=r"(val)); - return val; -} - - -static inline void write_cntv_tval(rt_uint32_t val) -{ - asm volatile ("mcr p15, 0, %0, c14, c3, 0" :: "r"(val)); - return; -} - -static inline rt_uint32_t read_cntfrq(void) -{ - rt_uint32_t val; - asm volatile ("mrc p15, 0, %0, c14, c0, 0" : "=r"(val)); - return val; -} - - -static inline rt_uint32_t read_cntctrl(void) -{ - rt_uint32_t val; - asm volatile ("mrc p15, 0, %0, c14, c1, 0" : "=r"(val)); - return val; -} - -static inline uint32_t write_cntctrl(uint32_t val) -{ - - asm volatile ("mcr p15, 0, %0, c14, c1, 0" : :"r"(val)); - return val; -} -#endif - -unsigned long rt_cpu_get_smp_id(void); - -void rt_cpu_mmu_disable(void); -void rt_cpu_mmu_enable(void); -void rt_cpu_tlb_set(volatile unsigned long*); - -void rt_cpu_dcache_clean_flush(void); -void rt_cpu_icache_flush(void); - -void rt_cpu_vector_set_base(unsigned int addr); -void rt_hw_mmu_init(void); -void rt_hw_vector_init(void); - -void set_timer_counter(unsigned int counter); -void set_timer_control(unsigned int control); -#endif diff --git a/libcpu/arm/cortex-a53/cpu.c b/libcpu/arm/cortex-a53/cpu.c deleted file mode 100644 index 4d02ca35e1..0000000000 --- a/libcpu/arm/cortex-a53/cpu.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Copyright (c) 2006-2019, RT-Thread Development Team - * - * SPDX-License-Identifier: Apache-2.0 - * - * Change Logs: - * Date Author Notes - * 2011-09-15 Bernard first version - * 2019-07-28 zdzn add smp support - */ - -#include <rthw.h> -#include <rtthread.h> -#include <board.h> -#include "cp15.h" - -int rt_hw_cpu_id(void) -{ - int cpu_id; - __asm__ volatile ( - "mrc p15, 0, %0, c0, c0, 5" - :"=r"(cpu_id) - ); - cpu_id &= 0xf; - return cpu_id; -}; - - -#ifdef RT_USING_SMP -void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock) -{ - lock->slock = 0; -} - -void rt_hw_spin_lock(rt_hw_spinlock_t *lock) -{ - unsigned long tmp; - unsigned long newval; - rt_hw_spinlock_t lockval; - __asm__ __volatile__( - "pld [%0]" - ::"r"(&lock->slock) - ); - - __asm__ __volatile__( - "1: ldrex %0, [%3]\n" - " add %1, %0, %4\n" - " strex %2, %1, [%3]\n" - " teq %2, #0\n" - " bne 1b" - : "=&r" (lockval), "=&r" (newval), "=&r" (tmp) - : "r" (&lock->slock), "I" (1 << 16) - : "cc"); - - while (lockval.tickets.next != lockval.tickets.owner) - { - __WFE(); - lockval.tickets.owner = *(volatile unsigned short *)(&lock->tickets.owner); - } - - __DMB(); -} - -void rt_hw_spin_unlock(rt_hw_spinlock_t *lock) -{ - __DMB(); - lock->tickets.owner++; - __DSB(); - __SEV(); -} -#endif /*RT_USING_SMP*/ - -/** - * @addtogroup ARM CPU - */ -/*@{*/ - -/** shutdown CPU */ -void rt_hw_cpu_shutdown() -{ - rt_uint32_t level; - rt_kprintf("shutdown...\n"); - - level = rt_hw_interrupt_disable(); - while (level) - { - RT_ASSERT(0); - } -} - -/*@}*/ diff --git a/libcpu/arm/cortex-a53/interrupt.c b/libcpu/arm/cortex-a53/interrupt.c deleted file mode 100644 index c9e7c17f8f..0000000000 --- a/libcpu/arm/cortex-a53/interrupt.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * Copyright (c) 2006-2019, RT-Thread Development Team - * - * SPDX-License-Identifier: Apache-2.0 - * - * Change Logs: - * Date Author Notes - * 2018/5/3 Bernard first version - * 2019-07-28 zdzn add smp support - * 2019-08-09 zhangjun fixup the problem of smp startup and scheduling issues, - * write addr to mailbox3 to startup smp, and we use mailbox0 for ipi - */ - -#include <rthw.h> -#include <rtthread.h> - -#include "cp15.h" -#include <board.h> - -#define MAX_HANDLERS 72 - -#ifdef RT_USING_SMP -#define rt_interrupt_nest rt_cpu_self()->irq_nest -#else -extern volatile rt_uint8_t rt_interrupt_nest; -#endif - -const unsigned int VECTOR_BASE = 0x00; -extern void rt_cpu_vector_set_base(unsigned int addr); -extern int system_vectors; - -void rt_hw_vector_init(void) -{ - rt_cpu_vector_set_base((unsigned int)&system_vectors); -} - -/* exception and interrupt handler table */ -struct rt_irq_desc isr_table[MAX_HANDLERS]; - -rt_uint32_t rt_interrupt_from_thread; -rt_uint32_t rt_interrupt_to_thread; -rt_uint32_t rt_thread_switch_interrupt_flag; - -extern int system_vectors; - -static void default_isr_handler(int vector, void *param) -{ -#ifdef RT_USING_SMP - rt_kprintf("cpu %d unhandled irq: %d\n", rt_hw_cpu_id(),vector); -#else - rt_kprintf("unhandled irq: %d\n",vector); -#endif -} - -/** - * This function will initialize hardware interrupt - */ -void rt_hw_interrupt_init(void) -{ - rt_uint32_t index; - - /* mask all of interrupts */ - IRQ_DISABLE_BASIC = 0x000000ff; - IRQ_DISABLE1 = 0xffffffff; - IRQ_DISABLE2 = 0xffffffff; - for (index = 0; index < MAX_HANDLERS; index ++) - { - isr_table[index].handler = default_isr_handler; - isr_table[index].param = NULL; -#ifdef RT_USING_INTERRUPT_INFO - rt_strncpy(isr_table[index].name, "unknown", RT_NAME_MAX); - isr_table[index].counter = 0; -#endif - } - - /* init interrupt nest, and context in thread sp */ - rt_interrupt_nest = 0; - rt_interrupt_from_thread = 0; - rt_interrupt_to_thread = 0; - rt_thread_switch_interrupt_flag = 0; -} - -/** - * This function will mask a interrupt. - * @param vector the interrupt number - */ -void rt_hw_interrupt_mask(int vector) -{ - - if (vector < 32) - { - IRQ_DISABLE1 = (1 << vector); - } - else if (vector < 64) - { - vector = vector % 32; - IRQ_DISABLE2 = (1 << vector); - } - else - { - vector = vector - 64; - IRQ_DISABLE_BASIC = (1 << vector); - } -} - -/** - * This function will un-mask a interrupt. - * @param vector the interrupt number - */ -void rt_hw_interrupt_umask(int vector) -{ - if (vector < 32) - { - IRQ_ENABLE1 = (1 << vector); - } - else if (vector < 64) - { - vector = vector % 32; - IRQ_ENABLE2 = (1 << vector); - } - else - { - vector = vector - 64; - IRQ_ENABLE_BASIC = (1 << vector); - } -} - -/** - * This function will install a interrupt service routine to a interrupt. - * @param vector the interrupt number - * @param new_handler the interrupt service routine to be installed - * @param old_handler the old interrupt service routine - */ -rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, - void *param, const char *name) -{ - rt_isr_handler_t old_handler = RT_NULL; - - if (vector < MAX_HANDLERS) - { - old_handler = isr_table[vector].handler; - - if (handler != RT_NULL) - { -#ifdef RT_USING_INTERRUPT_INFO - rt_strncpy(isr_table[vector].name, name, RT_NAME_MAX); -#endif /* RT_USING_INTERRUPT_INFO */ - isr_table[vector].handler = handler; - isr_table[vector].param = param; - } - } - - return old_handler; -} - -#ifdef RT_USING_SMP -void rt_hw_ipi_send(int ipi_vector, unsigned int cpu_mask) -{ - __DSB(); - if (cpu_mask & 0x1) - { - send_ipi_msg(0, ipi_vector); - } - if (cpu_mask & 0x2) - { - send_ipi_msg(1, ipi_vector); - } - if (cpu_mask & 0x4) - { - send_ipi_msg(2, ipi_vector); - } - if (cpu_mask & 0x8) - { - send_ipi_msg(3, ipi_vector); - } - __DSB(); -} -#endif - -#ifdef RT_USING_SMP -void rt_hw_ipi_handler_install(int ipi_vector, rt_isr_handler_t ipi_isr_handler) -{ - /* note: ipi_vector maybe different with irq_vector */ - rt_hw_interrupt_install(ipi_vector, ipi_isr_handler, 0, "IPI_HANDLER"); -} -#endif diff --git a/libcpu/arm/cortex-a53/interrupt.h b/libcpu/arm/cortex-a53/interrupt.h deleted file mode 100644 index 9aae0f556a..0000000000 --- a/libcpu/arm/cortex-a53/interrupt.h +++ /dev/null @@ -1,18 +0,0 @@ - -#ifndef __INTERRUPT_H__ -#define __INTERRUPT_H__ - -#include <rthw.h> -#include <board.h> - -#define INT_IRQ 0x00 -#define INT_FIQ 0x01 - -void rt_hw_interrupt_init(void); -void rt_hw_interrupt_mask(int vector); -void rt_hw_interrupt_umask(int vector); - -rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, - void *param, const char *name); - -#endif diff --git a/libcpu/arm/cortex-a53/mmu.c b/libcpu/arm/cortex-a53/mmu.c deleted file mode 100644 index b3541d2ad4..0000000000 --- a/libcpu/arm/cortex-a53/mmu.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Copyright (c) 2006-2019, RT-Thread Development Team - * - * SPDX-License-Identifier: Apache-2.0 - * - * Change Logs: - * Date Author Notes - * 2012-01-10 bernard porting to AM1808 - * 2019-07-28 zdzn add smp support - */ - -#include "mmu.h" - -/* dump 2nd level page table */ -void rt_hw_cpu_dump_page_table_2nd(rt_uint32_t *ptb) -{ - int i; - int fcnt = 0; - - for (i = 0; i < 256; i++) - { - rt_uint32_t pte2 = ptb[i]; - if ((pte2 & 0x3) == 0) - { - if (fcnt == 0) - rt_kprintf(" "); - rt_kprintf("%04x: ", i); - fcnt++; - if (fcnt == 16) - { - rt_kprintf("fault\n"); - fcnt = 0; - } - continue; - } - if (fcnt != 0) - { - rt_kprintf("fault\n"); - fcnt = 0; - } - - rt_kprintf(" %04x: %x: ", i, pte2); - if ((pte2 & 0x3) == 0x1) - { - rt_kprintf("L,ap:%x,xn:%d,texcb:%02x\n", - ((pte2 >> 7) | (pte2 >> 4))& 0xf, - (pte2 >> 15) & 0x1, - ((pte2 >> 10) | (pte2 >> 2)) & 0x1f); - } - else - { - rt_kprintf("S,ap:%x,xn:%d,texcb:%02x\n", - ((pte2 >> 7) | (pte2 >> 4))& 0xf, pte2 & 0x1, - ((pte2 >> 4) | (pte2 >> 2)) & 0x1f); - } - } -} - -void rt_hw_cpu_dump_page_table(rt_uint32_t *ptb) -{ - int i; - int fcnt = 0; - - rt_kprintf("page table@%p\n", ptb); - for (i = 0; i < 1024*4; i++) - { - rt_uint32_t pte1 = ptb[i]; - if ((pte1 & 0x3) == 0) - { - rt_kprintf("%03x: ", i); - fcnt++; - if (fcnt == 16) - { - rt_kprintf("fault\n"); - fcnt = 0; - } - continue; - } - if (fcnt != 0) - { - rt_kprintf("fault\n"); - fcnt = 0; - } - - rt_kprintf("%03x: %08x: ", i, pte1); - if ((pte1 & 0x3) == 0x3) - { - rt_kprintf("LPAE\n"); - } - else if ((pte1 & 0x3) == 0x1) - { - rt_kprintf("pte,ns:%d,domain:%d\n", - (pte1 >> 3) & 0x1, (pte1 >> 5) & 0xf); - /* - *rt_hw_cpu_dump_page_table_2nd((void*)((pte1 & 0xfffffc000) - * - 0x80000000 + 0xC0000000)); - */ - } - else if (pte1 & (1 << 18)) - { - rt_kprintf("super section,ns:%d,ap:%x,xn:%d,texcb:%02x\n", - (pte1 >> 19) & 0x1, - ((pte1 >> 13) | (pte1 >> 10))& 0xf, - (pte1 >> 4) & 0x1, - ((pte1 >> 10) | (pte1 >> 2)) & 0x1f); - } - else - { - rt_kprintf("section,ns:%d,ap:%x," - "xn:%d,texcb:%02x,domain:%d\n", - (pte1 >> 19) & 0x1, - ((pte1 >> 13) | (pte1 >> 10))& 0xf, - (pte1 >> 4) & 0x1, - (((pte1 & (0x7 << 12)) >> 10) | - ((pte1 & 0x0c) >> 2)) & 0x1f, - (pte1 >> 5) & 0xf); - } - } -} - -/* level1 page table, each entry for 1MB memory. */ -volatile static unsigned long MMUTable[4*1024] __attribute__((aligned(16*1024))); -void rt_hw_mmu_setmtt(rt_uint32_t vaddrStart, - rt_uint32_t vaddrEnd, - rt_uint32_t paddrStart, - rt_uint32_t attr) -{ - volatile rt_uint32_t *pTT; - volatile int i, nSec; - pTT = (rt_uint32_t *)MMUTable + (vaddrStart >> 20); - nSec = (vaddrEnd >> 20) - (vaddrStart >> 20); - for (i = 0; i <= nSec; i++) - { - *pTT = attr | (((paddrStart >> 20) + i) << 20); - pTT++; - } -} - -unsigned long rt_hw_set_domain_register(unsigned long domain_val) -{ - unsigned long old_domain; - - asm volatile ("mrc p15, 0, %0, c3, c0\n" : "=r" (old_domain)); - asm volatile ("mcr p15, 0, %0, c3, c0\n" : :"r" (domain_val) : "memory"); - - return old_domain; -} - -void rt_hw_init_mmu_table() -{ - /* set page table */ - /* 4G 1:1 memory */ - rt_hw_mmu_setmtt(0x00000000, 0x3effffff, 0x00000000, NORMAL_MEM); - /* IO memory region */ - rt_hw_mmu_setmtt(0x3f000000, 0x40010000, 0x3f000000, DEVICE_MEM); -} - -void rt_hw_change_mmu_table(rt_uint32_t vaddrStart, - rt_uint32_t size, - rt_uint32_t paddrStart, rt_uint32_t attr) -{ - rt_hw_mmu_setmtt(vaddrStart, vaddrStart+size-1, paddrStart, attr); -#ifndef RT_USING_SMP - rt_cpu_dcache_clean_flush(); - rt_cpu_icache_flush(); -#endif -} - - -void rt_hw_mmu_init(void) -{ - rt_cpu_dcache_clean_flush(); - rt_cpu_icache_flush(); - rt_hw_cpu_dcache_disable(); - rt_hw_cpu_icache_disable(); - rt_cpu_mmu_disable(); - - /*rt_hw_cpu_dump_page_table(MMUTable);*/ - rt_hw_set_domain_register(0x55555555); - - rt_cpu_tlb_set(MMUTable); - - rt_cpu_mmu_enable(); - - rt_hw_cpu_icache_enable(); - rt_hw_cpu_dcache_enable(); -} - |