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TODO: Port ok1028a-c.

This commit is contained in:
liuqh 2024-05-08 15:35:21 +08:00
parent f5ad8437b5
commit 6b91caac18
43 changed files with 2862 additions and 2 deletions
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5
Ubiquitous/XiZi_AIoT/Makefile
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@ -4,7 +4,7 @@ MAKEFLAGS += --no-print-directory
.PHONY:COMPILE_APP COMPILE_KERNEL .PHONY:COMPILE_APP COMPILE_KERNEL
riscv_support := riscv_support :=
arm_support += imx6q-sabrelite zynq7000-zc702 arm_support += imx6q-sabrelite zynq7000-zc702 ok1028a-c
emulator_support += emulator_support +=
support := $(riscv_support) $(arm_support) $(emulator_support) support := $(riscv_support) $(arm_support) $(emulator_support)
SRC_DIR := SRC_DIR :=
@ -34,6 +34,9 @@ export UBIQUITOUS_ROOT ?= ..
ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), ) ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), )
include $(KERNEL_ROOT)/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_$(BOARD)/config.mk include $(KERNEL_ROOT)/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_$(BOARD)/config.mk
endif endif
ifneq ($(findstring $(BOARD), ok1028a-c), )
include $(KERNEL_ROOT)/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_$(BOARD)/config.mk
endif
export BSP_BUILD_DIR := $(KERNEL_ROOT) export BSP_BUILD_DIR := $(KERNEL_ROOT)
export HOSTTOOLS_DIR ?= $(KERNEL_ROOT)/services/tools/hosttools export HOSTTOOLS_DIR ?= $(KERNEL_ROOT)/services/tools/hosttools
export CONFIG2H_EXE ?= $(HOSTTOOLS_DIR)/xsconfig.sh export CONFIG2H_EXE ?= $(HOSTTOOLS_DIR)/xsconfig.sh

6
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/Makefile
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@ -1,4 +1,10 @@
# The following three platforms support compatiable instructions. # The following three platforms support compatiable instructions.
ifneq ($(findstring $(BOARD), ok1028a-c), )
SRC_DIR := armv8-a
endif
ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), )
SRC_DIR := armv7-a SRC_DIR := armv7-a
endif
include $(KERNEL_ROOT)/compiler.mk include $(KERNEL_ROOT)/compiler.mk

7
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/Makefile Normal file
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@ -0,0 +1,7 @@
# The following three platforms support compatiable instructions.
ifneq ($(findstring $(BOARD), ok1028a-c), )
SRC_DIR := cortex-a72
endif
include $(KERNEL_ROOT)/compiler.mk

4
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/Makefile Normal file
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@ -0,0 +1,4 @@
SRC_DIR := preboot_for_$(BOARD)
SRC_FILES := context_switch.S core.c
include $(KERNEL_ROOT)/compiler.mk

50
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/context_switch.S Normal file
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@ -0,0 +1,50 @@
/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file context_switch.S
* @brief task context switch functions
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.4.10
*/
/*************************************************
File name: context_switch.S
Description: task context switch functions
Others:
History:
*************************************************/
.global context_switch
context_switch:
# Save store original context to stack
stp x29, lr, [sp, #-16]!
stp x27, x28, [sp, #-16]!
stp x25, x26, [sp, #-16]!
stp x23, x24, [sp, #-16]!
stp x21, x22, [sp, #-16]!
stp x19, x20, [sp, #-16]!
# Switch stacks
mov x19, sp
str x19, [x0]
mov sp, x1
# restore context from stack
ldp x19, x20, [sp], #16
ldp x21, x22, [sp], #16
ldp x23, x24, [sp], #16
ldp x25, x26, [sp], #16
ldp x27, x28, [sp], #16
ldp x29, lr, [sp], #16
ret

75
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/core.c Normal file
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@ -0,0 +1,75 @@
/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file core.c
* @brief spl boot function
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.23
*/
/*************************************************
File name: core.c
Description: cortex-a9 core function, include cpu registers operations、core boot
Others:
History:
1. Date: 2024-04-23
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
/*********cortex-a72 general register************
EL0 | EL1 | EL2 | EL3
x0;
x1;
x2;
x3;
x4;
x5;
x6;
x7;
x8;
x9;
x10;
x11;
x12;
x13;
x14;
x15;
x16;
x17;
x18;
x19;
x20;
x21;
x22;
x23;
x24;
x25;
x26;
x27;
x28;
x29;
x30;
/*********cortex-a72 special register************
XZR
PC
SP_EL0 SP_EL1 SP_EL2 SP_EL3
SPSR_EL1 SPSR_EL2 SPSR_EL3
ELR_EL1 ELR_EL2 ELR_EL3
************************************************/
#include "core.h"

232
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/core.h Normal file
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@ -0,0 +1,232 @@
/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file core.h
* @brief cortex-a72 core function
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.11
*/
/*************************************************
File name: core.h
Description: cortex-a72 core function
Others:
History:
Author: AIIT XUOS Lab
Modification:
*************************************************/
#pragma once
// Interrupt control bits
#define NO_INT 0x80 // disable IRQ.
#define DIS_INT 0xc0 // disable both IRQ and FIQ.
//! @name SPSR fields
//@{
#define SPSR_EL1_N (1 << 31) //!< Negative
#define SPSR_EL1_Z (1 << 30) //!< Zero
#define SPSR_EL1_C (1 << 29) //!< Carry
#define SPSR_EL1_V (1 << 28) //!< Overflow
#define SPSR_EL1_SS (1 << 21) //!< Software Step
#define SPSR_EL1_IL (1 << 20) //!< Illegal Exception
#define SPSR_EL1_D (1 << 9) //!< Debug mask
#define SPSR_EL1_A (1 << 8) //!< SError mask
#define SPSR_EL1_I (1 << 7) //!< IRQ mask
#define SPSR_EL1_F (1 << 6) //!< FIQ mask
#define SPSR_EL1_M (1 << 4) //!< Execution state 0=64-bit 1=32-bit
#define SPSR_EL1_MODE (0x7) //!< Current processor mode
//@}
//! @name Interrupt enable bits in SPSR
//@{
#define I_BIT 0x80 //!< When I bit is set, IRQ is disabled
#define F_BIT 0x40 //!< When F bit is set, FIQ is disabled
//@}
// ARM Modes t indicates selecting sp_el0 pointer, h indicates selecting sp_eln pointer
#define SPSR_MODE_MASK 0x0f
#define ARM_MODE_EL0_t 0x00
#define ARM_MODE_EL1_t 0x04
#define ARM_MODE_EL1_h 0x05
#define ARM_MODE_EL2_t 0x08
#define ARM_MODE_EL2_h 0x09
#define ARM_MODE_EL3_t 0x0c
#define ARM_MODE_EL3_h 0x0d
#ifndef __ASSEMBLER__
#include <stdint.h>
#include <string.h>
#include "cortex_a72.h"
#define NR_CPU 4 // maximum number of CPUs
#define NR_PROC 64 // maximum number of processes
#define NOFILE 16 // open files per process
#define NFILE 100 // open files per system
#define NINODE 50 // maximum number of active i-nodes
#define NDEV 10 // maximum major device number
#define ROOTDEV 1 // device number of file system root disk
#define MAXARG 32 // max exec arguments
#define MAXOPBLOCKS 10 // max # of blocks any FS op writes
#define LOGSIZE (MAXOPBLOCKS * 3) // max data blocks in on-disk log
#define NBUF (MAXOPBLOCKS * 3) // size of disk block cache
#define FSSIZE 1000 // size of file system in blocks
#define MAXPATH 128 // maximum file path name
__attribute__((always_inline)) static inline uint64_t EL0_mode() // Set ARM mode to EL0
{
uint64_t val;
__asm__ __volatile__(
"mrs %0, spsr_el1"
: "=r"(val)
:
:);
val &= ~DIS_INT;
val &= ~SPSR_MODE_MASK;
val |= ARM_MODE_EL0_t;
return val;
}
struct context {
// callee-saved Registers
uint64_t x19;
uint64_t x20;
uint64_t x21;
uint64_t x22;
uint64_t x23;
uint64_t x24;
uint64_t x25;
uint64_t x26;
uint64_t x27;
uint64_t x28;
uint64_t x29;
uint64_t x30;
};
/// @brief init task context, set return address to trap return
/// @param ctx
extern void trap_return(void);
__attribute__((__always_inline__)) static inline void arch_init_context(struct context* ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->x30 = (uint64_t)(trap_return);
}
struct trapframe {
// Additional registers used to support musl
uint64_t _padding; // for 16-byte aligned
uint64_t tpidr_el0;
__uint128_t q0;
// Special Registers
uint64_t sp_el0; // stack pointer
uint64_t spsr_el1; // program status register
uint64_t elr_el1; // exception link register
uint64_t pc; // program counter
// general purpose registers
uint64_t x0;
uint64_t x1;
uint64_t x2;
uint64_t x3;
uint64_t x4;
uint64_t x5;
uint64_t x6;
uint64_t x7;
uint64_t x8;
uint64_t x9;
uint64_t x10;
uint64_t x11;
uint64_t x12;
uint64_t x13;
uint64_t x14;
uint64_t x15;
uint64_t x16;
uint64_t x17;
uint64_t x18;
uint64_t x19;
uint64_t x20;
uint64_t x21;
uint64_t x22;
uint64_t x23;
uint64_t x24;
uint64_t x25;
uint64_t x26;
uint64_t x27;
uint64_t x28;
uint64_t x29;
uint64_t x30;
};
/// @brief init task trapframe
/// @param tf
/// @param sp
/// @param pc
__attribute__((__always_inline__)) static inline void arch_init_trapframe(struct trapframe* tf, uintptr_t sp, uintptr_t pc)
{
memset(tf, 0, sizeof(*tf));
tf->sp_el0 = sp;
tf->spsr_el1 = EL0_mode();
tf->elr_el1 = 0;
tf->pc = pc;
}
/// @brief set pc and sp to trapframe
/// @param tf
/// @param sp
/// @param pc
__attribute__((__always_inline__)) static inline void arch_trapframe_set_sp_pc(struct trapframe* tf, uintptr_t sp, uintptr_t pc)
{
tf->sp_el0 = sp;
tf->pc = pc;
}
/// @brief set params of main(int argc, char** argv) to trapframe (argc, argv)
/// @param tf
/// @param argc
/// @param argv
__attribute__((__always_inline__)) static inline void arch_set_main_params(struct trapframe* tf, int argc, uintptr_t argv)
{
tf->x0 = (uint64_t)argc;
tf->x1 = (uint64_t)argv;
}
/// @brief retrieve params to trapframe (up to max number of 6) and pass it to syscall()
/// @param sys_num
/// @param param1
/// @param param2
/// @param param3
/// @param param4
/// @param param5
/// @return
extern int syscall(int sys_num, uintptr_t param1, uintptr_t param2, uintptr_t param3, uintptr_t param4, uintptr_t param5);
__attribute__((__always_inline__)) static inline int arch_syscall(struct trapframe* tf, int* syscall_num)
{
// call syscall
*syscall_num = tf->x8;
return syscall(*syscall_num, tf->x1, tf->x2, tf->x3, tf->x4, tf->x5);
}
/// @brief set return reg to trapframe
/// @param tf
/// @param ret
__attribute__((__always_inline__)) static inline void arch_set_return(struct trapframe* tf, int ret)
{
tf->x0 = (uint64_t)ret;
}
void cpu_start_secondary(uint8_t cpu_id);
void start_smp_cache_broadcast(int cpu_id);
#endif

4
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/Makefile Normal file
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@ -0,0 +1,4 @@
SRC_FILES := boot.S \
start.c
include $(KERNEL_ROOT)/compiler.mk

152
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/boot.S Normal file
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@ -0,0 +1,152 @@
#include "memlayout.h"
#include "core.h"
#include "registers.h"
#include "cortex_a72.h"
// qemu -kernel loads the kernel at 0x40000000
// and causes each CPU to jump there.
// kernel.ld causes the following code to
// be placed at 0x40000000.
.section ".text"
.global _entry
_entry:
mrs x1, mpidr_el1
and x1, x1, #0x3
cbz x1, entry // primary
# b entryothers // secondary
entry:
// clear .bss
adrp x1, bss_start
ldr w2, =bss_size
1:
cbz w2, 2f
str xzr, [x1], #8
sub w2, w2, #1
b 1b
2:
// set up entry pagetable
//
// Phase 1.
// map the kernel code identically.
// map [0x40000000,PA(end)) to [0x40000000,PA(end))
// memory type is normal
//
// Phase 2.
// map the kernel code.
// map [0xffffff8040000000,VA(end)) to [0x40000000,PA(end))
// memory type is normal.
// Phase 1
// map [0x40000000,PA(end)) to [0x40000000,PA(end))
adrp x0, l2entrypgt
mov x1, #0x00000000
ldr x2, =V2P_WO(end)-1
lsr x3, x1, #PXSHIFT(2)
and x3, x3, #PXMASK // PX(2, x1)
lsr x4, x2, #PXSHIFT(2)
and x4, x4, #PXMASK // PX(2, x2)
mov x5, #(PTE_AF | PTE_INDX(AI_NORMAL_NC_IDX) | PTE_VALID) // entry attr
orr x6, x1, x5 // block entry
l2epgt_loop:
str x6, [x0, x3, lsl #3] // l2entrypgt[l2idx] = block entry
add x3, x3, #1 // next index
add x6, x6, #0x200000 // next block, block size is 2MB
cmp x3, x4
b.ls l2epgt_loop // if start va idx <= end va idx
adrp x0, l1entrypgt
lsr x3, x1, #PXSHIFT(1)
and x3, x3, #PXMASK // start va level1 index
mov x4, #(PTE_TABLE | PTE_VALID) // entry attr
adrp x5, l2entrypgt
orr x6, x4, x5 // table entry
str x6, [x0, x3, lsl #3] // l1entrypgt[l1idx] = table entry
// Phase 2
// map [0xffffff8040000000,VA(end)) to [0x40000000,PA(end))
adrp x0, l2kpgt
mov x1, #0x00000000 // start pa
ldr x2, =V2P_WO(end)-1 // end pa
mov x3, #KERN_MEM_BASE
add x4, x1, x3 // start va
add x5, x2, x3 // end va
lsr x6, x4, #PXSHIFT(2)
and x6, x6, #PXMASK // x6 = PX(2,x4)
lsr x7, x5, #PXSHIFT(2)
and x7, x7, #PXMASK // x7 = PX(2,x5)
mov x8, #(PTE_AF | PTE_INDX(AI_NORMAL_NC_IDX) | PTE_VALID) // entry attr
orr x9, x1, x8 // block entry
l2kpgt_loop:
str x9, [x0, x6, lsl #3] // l2entrypgt[l2idx] = block entry
add x6, x6, #1 // next index
add x9, x9, #0x200000 // next block, block size is 2MB
cmp x6, x7
b.ls l2kpgt_loop // if start va idx <= end va idx
adrp x0, l1kpgt
lsr x5, x4, #PXSHIFT(1)
and x5, x5, #PXMASK // x5 = PX(1,x4)
mov x6, #(PTE_TABLE | PTE_VALID) // entry attr
adrp x7, l2kpgt
orr x8, x6, x7 // table entry
str x8, [x0, x5, lsl #3] // l1kpgt[l1idx] = table entry
entryothers: // secondary CPU starts here
// load pagetable
adrp x0, l1entrypgt
adrp x1, l1kpgt
msr ttbr0_el1, x0
msr ttbr1_el1, x1
// setup tcr
ldr x0, =(TCR_T0SZ(25)|TCR_T1SZ(25)|TCR_TG0(0)|TCR_TG1(2)|TCR_IPS(0))
msr tcr_el1, x0
// setup mair
ldr x1, =((MT_DEVICE_nGnRnE<<(8*AI_DEVICE_nGnRnE_IDX)) | (MT_NORMAL_NC<<(8*AI_NORMAL_NC_IDX)))
msr mair_el1, x1
ISB
ldr x1, =_start // x1 = VA(_start)
// enable paging
mrs x0, sctlr_el1
orr x0, x0, #1
msr sctlr_el1, x0
br x1 // jump to higher address (0xffffff8000000000~)
_start:
// set up a stack for C.
// stack0 is declared in start.c,
// with a 4096-byte stack per CPU.
// sp = stack0 + ((cpuid+1) * 4096)
// cpuid = mpidr_el1 & 0xff
ldr x0, =stack0
mov x1, #1024*4
mrs x2, mpidr_el1
and x2, x2, #0x3
add x2, x2, #1
mul x1, x1, x2
add x0, x0, x1
mov sp, x0
// jump to main()
b main
b . // spin
.global psci_call
psci_call:
hvc #0
ret

18
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/config.mk Normal file
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@ -0,0 +1,18 @@
export CROSS_COMPILE ?= aarch64-linux-gnu-
export DEVICE = -march=armv8-a -mtune=cortex-a72 -ftree-vectorize -ffast-math
export CFLAGS := $(DEVICE) -Wall -O0 -g -gdwarf-2
export AFLAGS := -c $(DEVICE) -x assembler-with-cpp -D__ASSEMBLY__ -gdwarf-2
# export LFLAGS := $(DEVICE) -Wl,-Map=XiZi-imx6q-sabrelite.map,-cref,-u,_boot_start -T $(KERNEL_ROOT)/hardkernel/arch/arm/armv7-a/cortex-a9/preboot_for_imx6q-sabrelite/nxp_imx6q_sabrelite.lds
export LFLAGS := $(DEVICE) --specs=nosys.specs -Wl,-Map=XiZi-ok1028a-c.map,-cref,-u,_start -T $(KERNEL_ROOT)/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/nxp_ls1028.lds
export CXXFLAGS :=
ifeq ($(CONFIG_LIB_MUSLLIB), y)
export LFLAGS += -nostdlib -nostdinc -fno-builtin -nodefaultlibs
export LIBCC := -lgcc
export LINK_MUSLLIB := $(KERNEL_ROOT)/lib/musllib/libmusl.a
endif
export DEFINES := -DHAVE_CCONFIG_H -DCHIP_LS1028
export ARCH = arm
export ARCH_ARMV = armv8-a

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Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/include/cortex_a72.h Normal file
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@ -0,0 +1,235 @@
/*
* Copyright (c) 2012, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 THE COPYRIGHT HOLDER OR 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.
*/
/**
* @file cortex_a72.h
* @brief some cortex A72 core functions
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.24
*/
/*************************************************
File name: cortex_a72.h
Description: some cortex A72 core functions
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. No modifications
*************************************************/
#if !defined(__CORTEX_A72_H__)
#define __CORTEX_A72_H__
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
//! @name Instruction macros
//@{
#define NOP() __asm__ volatile("nop\n\t")
#define WFI() __asm__ volatile("wfi\n\t")
#define WFE() __asm__ volatile("wfe\n\t")
#define SEV() __asm__ volatile("sev\n\t")
#define DMB() __asm__ volatile("dmb\n\t")
#define DSB() __asm__ volatile("dsb\n\t")
#define ISB() __asm__ volatile("isb\n\t")
#define _ARM_MRS(coproc, opcode1, Rt, CRn, CRm, opcode2) \
asm volatile("mrc p" #coproc ", " #opcode1 ", %[output], c" #CRn ", c" #CRm ", " #opcode2 "\n" : [output] "=r"(Rt))
#define _ARM_MSR(coproc, opcode1, Rt, CRn, CRm, opcode2) \
asm volatile("mcr p" #coproc ", " #opcode1 ", %[input], c" #CRn ", c" #CRm ", " #opcode2 "\n" ::[input] "r"(Rt))
#define WriteReg(value, address) (*(volatile unsigned int*)(address) = (value))
#define ReadReg(address) (*(volatile unsigned int*)(address))
#if defined(__cplusplus)
extern "C" {
#endif
//! @name Misc
//@{
//! @brief Enable or disable the IRQ and FIQ state.
bool arm_set_interrupt_state(bool enable);
//! @brief Get current CPU ID.
int cpu_get_current(void);
//! @brief Enable the NEON MPE.
void enable_neon_fpu(void);
//! @brief Disable aborts on unaligned accesses.
void disable_strict_align_check(void);
//! @brief Get base address of private perpherial space.
//!
//! @return The address of the ARM CPU's private peripherals.
// uint32_t get_arm_private_peripheral_base(void);
//@}
//! @name Data cache operations
//@{
//! @brief Check if dcache is enabled or disabled.
int arm_dcache_state_query();
//! @brief Enables data cache at any available cache level.
//!
//! Works only if MMU is enabled!
void arm_dcache_enable();
//! @brief Disables the data cache at any available cache level.
void arm_dcache_disable();
//! @brief Invalidates the entire data cache.
void arm_dcache_invalidate();
//! @brief Invalidate a line of data cache.
void arm_dcache_invalidate_line(const void * addr);
//! @brief Invalidate a number of lines of data cache.
//!
//! Number of lines depends on length parameter and size of line.
//! Size of line for A9 L1 cache is 32B.
void arm_dcache_invalidate_mlines(const void * addr, size_t length);
//! @brief Flush (clean) all lines of cache (all sets in all ways).
void arm_dcache_flush();
//! @brief Flush (clean) one line of cache.
void arm_dcache_flush_line(const void * addr);
// @brief Flush (clean) multiple lines of cache.
//!
//! Number of lines depends on length parameter and size of line.
void arm_dcache_flush_mlines(const void * addr, size_t length);
//@}
//! @name Instrution cache operations
//@{
//! @brief Check if icache is enabled or disabled.
int arm_icache_state_query();
//! @brief Enables instruction cache at any available cache level.
//!
//! Works without enabled MMU too!
void arm_icache_enable();
//! @brief Disables the instruction cache at any available cache level.
void arm_icache_disable();
//! @brief Invalidates the entire instruction cache.
void arm_icache_invalidate();
//! @brief Invalidates the entire instruction cache inner shareable.
void arm_icache_invalidate_is();
//! @brief Invalidate a line of the instruction cache.
void arm_icache_invalidate_line(const void * addr);
//! @brief Invalidate a number of lines of instruction cache.
//!
//! Number of lines depends on length parameter and size of line.
void arm_icache_invalidate_mlines(const void * addr, size_t length);
//@}
//! @name TLB operations
//@{
//! @brief Invalidate entire unified TLB.
void arm_unified_tlb_invalidate(void);
//! @brief Invalidate entire unified TLB Inner Shareable.
void arm_unified_tlb_invalidate_is(void);
//@}
//! @name Branch predictor operations
//@{
//! @brief Enable branch prediction.
void arm_branch_prediction_enable(void);
//! @brief Disable branch prediction.
void arm_branch_prediction_disable(void);
//! @brief Invalidate entire branch predictor array.
void arm_branch_target_cache_invalidate(void);
//! @brief Invalidate entire branch predictor array Inner Shareable
void arm_branch_target_cache_invalidate_is(void);
//@}
//! @name SCU
//@{
//! @brief Enables the SCU.
void scu_enable(void);
//! @brief Set this CPU as participating in SMP.
void scu_join_smp(void);
//! @brief Set this CPU as not participating in SMP.
void scu_leave_smp(void);
//! @brief Determine which CPUs are participating in SMP.
//!
//! The return value is 1 bit per core:
//! - bit 0 - CPU 0
//! - bit 1 - CPU 1
//! - etc...
unsigned int scu_get_cpus_in_smp(void);
//! @brief Enable the broadcasting of cache & TLB maintenance operations.
//!
//! When enabled AND in SMP, broadcast all "inner sharable"
//! cache and TLM maintenance operations to other SMP cores
void scu_enable_maintenance_broadcast(void);
//! @brief Disable the broadcasting of cache & TLB maintenance operations.
void scu_disable_maintenance_broadcast(void);
//! @brief Invalidates the SCU copy of the tag rams for the specified core.
//!
//! Typically only done at start-up.
//! Possible flow:
//! - Invalidate L1 caches
//! - Invalidate SCU copy of TAG RAMs
//! - Join SMP
//!
//! @param cpu 0x0=CPU 0, 0x1=CPU 1, etc...
//! @param ways The ways to invalidate. Pass 0xf to invalidate all ways.
void scu_secure_invalidate(unsigned int cpu, unsigned int ways);
//@}
#if defined(__cplusplus)
}
#endif
#endif//__CORTEX_A72_H__

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#ifndef INC_SYSREGS_H_
#define INC_SYSREGS_H_
/* SCTLR_EL1, System Control Register (EL1). */
#define SCTLR_RESERVED \
((3 << 28) | (3 << 22) | (1 << 20) | (1 << 11) | (1 << 8) | (1 << 7))
#define SCTLR_EE_LITTLE_ENDIAN (0 << 25)
#define SCTLR_E0E_LITTLE_ENDIAN (0 << 24)
#define SCTLR_I_CACHE (1 << 12)
#define SCTLR_D_CACHE (1 << 2)
#define SCTLR_MMU_DISABLED (0 << 0)
#define SCTLR_MMU_ENABLED (1 << 0)
#define SCTLR_VALUE_MMU_DISABLED \
(SCTLR_RESERVED | SCTLR_EE_LITTLE_ENDIAN | SCTLR_E0E_LITTLE_ENDIAN \
| SCTLR_I_CACHE | SCTLR_D_CACHE | SCTLR_MMU_DISABLED)
/* HCR_EL2, Hypervisor Configuration Register (EL2). */
#define HCR_RW (1 << 31)
#define HCR_VALUE HCR_RW
/* CPACR_EL1, Architectural Feature Access Control Register. */
#define CPACR_FP_EN (3 << 20)
#define CPACR_TRACE_EN (0 << 28)
#define CPACR_VALUE (CPACR_FP_EN | CPACR_TRACE_EN)
/* SCR_EL3, Secure Configuration Register (EL3). */
#define SCR_RESERVED (3 << 4)
#define SCR_RW (1 << 10)
#define SCR_HCE (1 << 8)
#define SCR_SMD (1 << 7)
#define SCR_NS (1 << 0)
#define SCR_VALUE (SCR_RESERVED | SCR_RW | SCR_HCE | SCR_SMD | SCR_NS)
/* SPSR_EL1/2/3, Saved Program Status Register. */
#define SPSR_MASK_ALL (7 << 6)
#define SPSR_EL1h (5 << 0)
#define SPSR_EL2h (9 << 0)
#define SPSR_EL3_VALUE (SPSR_MASK_ALL | SPSR_EL2h)
#define SPSR_EL2_VALUE (SPSR_MASK_ALL | SPSR_EL1h)
/* Exception Class in ESR_EL1. */
#define EC_SHIFT 26
#define EC_UNKNOWN 0x00
#define EC_SVC64 0x15
#define EC_DABORT 0x24
#define EC_IABORT 0x20
#define PGSIZE 4096 // bytes per page
#define PGSHIFT 12 // bits of offset within a page
#define PGROUNDUP(sz) (((sz)+PGSIZE-1) & ~(PGSIZE-1))
#define PGROUNDDOWN(a) (((a)) & ~(PGSIZE-1))
#define PTE_VALID 1 // level 0,1,2 descriptor: valid
#define PTE_TABLE 2 // level 0,1,2 descriptor: table
#define PTE_V 3 // level 3 descriptor: valid
// PTE_AF(Access Flag)
//
// 0 -- this block entry has not yet.
// 1 -- this block entry has been used.
#define PTE_AF (1 << 10)
// PTE_AP(Access Permission) is 2bit field.
// EL0 EL1
// 00 -- x RW
// 01 -- RW RW
// 10 -- x RO
// 11 -- RO RO
#define PTE_AP(ap) (((ap) & 3) << 6)
#define PTE_U PTE_AP(1)
#define PTE_RO PTE_AP(2)
#define PTE_URO PTE_AP(3)
#define PTE_PXN (1UL << 53) // Privileged eXecute Never
#define PTE_UXN (1UL << 54) // Unprivileged(user) eXecute Never
#define PTE_XN (PTE_PXN|PTE_UXN) // eXecute Never
// attribute index
// index is set by mair_el1
#define AI_DEVICE_nGnRnE_IDX 0x0
#define AI_NORMAL_NC_IDX 0x1
// memory type
#define MT_DEVICE_nGnRnE 0x0
#define MT_NORMAL_NC 0x44
#define PTE_INDX(i) (((i) & 7) << 2)
#define PTE_DEVICE PTE_INDX(AI_DEVICE_nGnRnE_IDX)
#define PTE_NORMAL PTE_INDX(AI_NORMAL_NC_IDX)
// shift a physical address to the right place for a PTE.
#define PA2PTE(pa) ((uint64)(pa) & 0xfffffffff000)
#define PTE2PA(pte) ((uint64)(pte) & 0xfffffffff000)
#define PTE_FLAGS(pte) ((pte) & (0x600000000003ff))
// translation control register
#define TCR_T0SZ(n) ((n) & 0x3f)
#define TCR_TG0(n) (((n) & 0x3) << 14)
#define TCR_T1SZ(n) (((n) & 0x3f) << 16)
#define TCR_TG1(n) (((n) & 0x3) << 30)
#define TCR_IPS(n) (((n) & 0x7) << 32)
#define ISS_MASK 0xFFFFFF
#endif // INC_SYSREGS_H_

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Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_ok1028a-c/nxp_ls1028.lds Normal file
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/*
* Copyright (c) 2010-2012, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 THE COPYRIGHT HOLDER OR 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 OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file nxp_ls1028.lds
* @brief nxp ls1028 lds function
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.10
*/
OUTPUT_FORMAT("elf64-littleaarch64")
OUTPUT_ARCH( "aarch64" )
ENTRY( _entry )
SECTIONS
{
/*
* ensure that entry.S / _entry is at 0x40000000(physical address),
* where qemu's -kernel jumps.
* 0x40000000(PA) is 0xffffff8040000000(VA);
*/
/*
. = 0x40000000;
*/
. = 0xffffff0000000000;
.start_sec : {
. = ALIGN(0x1000);
/* initialization start checkpoint. */
boot.o(.text)
boot.o(.rodata .rodata.*)
boot.o(.data .data.*)
PROVIDE(boot_start_addr = .);
boot.o(.bss .bss.* COMMON)
/* stack for booting code. */
. = ALIGN(0x1000);
PROVIDE(stacks_start = .);
. += BOOT_STACK_SIZE;
PROVIDE(stacks_end = .);
PROVIDE(stacks_top = .);
/* initialization end checkpoint. */
PROVIDE(boot_end_addr = .);
}
.text : AT(0x0000000) {
*(.text .text.*)
. = ALIGN(0x1000);
PROVIDE(etext = .);
}
.rodata : {
. = ALIGN(16);
*(.srodata .srodata.*) /* do not need to distinguish this from .rodata */
. = ALIGN(16);
*(.rodata .rodata.*)
}
.data : {
. = ALIGN(16);
*(.sdata .sdata.*) /* do not need to distinguish this from .data */
. = ALIGN(16);
*(.data .data.*)
}
.bss : {
. = ALIGN(16);
PROVIDE(bss_start = .);
*(.sbss .sbss.*) /* do not need to distinguish this from .bss */
. = ALIGN(16);
*(.bss .bss.*)
. = ALIGN(16);
PROVIDE(bss_end = .);
}
PROVIDE(end = .);
}
bss_size = (bss_end - bss_start) >> 3;

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#include "core.h"
#include "memlayout.h"
#include "cortexa72.h"
void _entry();
void main();
extern char end[];
// entry.S needs one stack per CPU.
__attribute__ ((aligned (16))) char stack0[4096 * NR_CPU];
// entry.S jumps here in supervisor mode (EL1) on stack0.
// in qemu-system-aarch64, default EL (Exeception Level) is 1.
void
start()
{
main();
}
__attribute__((aligned(PGSIZE))) pte_t l1entrypgt[512];
__attribute__((aligned(PGSIZE))) pte_t l2entrypgt[512];
__attribute__((aligned(PGSIZE))) pte_t l1kpgt[512];
__attribute__((aligned(PGSIZE))) pte_t l2kpgt[512];

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ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), )
SRC_DIR := cortex-a9 SRC_DIR := cortex-a9
endif
ifneq ($(findstring $(BOARD), ok1028a-c), )
SRC_DIR := cortex-a72
endif
include $(KERNEL_ROOT)/compiler.mk include $(KERNEL_ROOT)/compiler.mk

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SRC_FILES := l1_cache.c
include $(KERNEL_ROOT)/compiler.mk

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/**
* @file: l1_cache.c
* @brief: the general management of L1 cache
* @version: 1.0
* @author: AIIT XUOS Lab
* @date: 2024/04/23
*
*/
/*************************************************
File name: l1_cache.c
Description: the general management of L1 cache
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. implement the l1 cache operations
2. function names are modified to apply softkernel developement
3. function implementations are from modifications of imx6 SDK package
*************************************************/
#include "l1_cache.h"
void InvalidateL1Dcache(uintptr_t start, uintptr_t end)
{
uintptr_t length = end - start;
uintptr_t addr = start;
uint64_t ccsidr_el1;
uint64_t line_size;
uint64_t va;
// get the cache line size
__asm__ __volatile__("mrs %0, ccsidr_el1" : : "=r" (ccsidr_el1));
line_size = 1 << ((ccsidr_el1 & 0x7) + 4);
// align the address with line
const void * end_addr = (const void *)((uint64_t)addr + length);
while (addr < end_addr){
va = (uint64_t)addr & (~(line_size - 1));
//Invalidate data cache line to PoC (Point of Coherence) by va.
__asm__ __volatile__("dc ivac, %0 " : : "r" (va));
// increment addres to next line and decrement lenght
addr = (void*)((uint64_t)addr + line_size);
}
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void InvalidateL1DcacheAll(void)
{
uint64_t ccsidr_el1; // Cache Size ID
int num_sets; // number of sets
int num_ways; // number of ways
uint32_t wayset; // wayset parameter
__asm__ __volatile__("mrs %0, ccsidr_el1" : : "=r" (ccsidr_el1));// Read Cache Size ID
// Fill number of sets and number of ways from ccsidr_el1 register
num_sets = ((ccsidr_el1 >> 32) & 0x7FFF) + 1;
num_ways = ((ccsidr_el1 >> 0) & 0x7FFF) + 1;
// Invalidation all lines (all Sets in all ways)
for (int way = 0 ; way < num_ways; way++){
for (int set = 0 ;set < num_sets; set++){
wayset = (way << 30) | (set << 5);
__asm__ __volatile__("dc isw, %0" : : "r" (wayset));
}
}
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void CleanL1Dcache(uintptr_t start, uintptr_t end)
{
void* addr = (void*)start;
uintptr_t length = end - start;
const void * end_addr = (const void *)((uint64_t)addr + length);
uint64_t ccsidr_el1;
uint64_t line_size;
uint64_t va;
// get the cache line size
__asm__ __volatile__("mrs %0, ccsidr_el1" : "=r" (ccsidr_el1));
line_size = 1 << ((ccsidr_el1 & 0x7) + 4);
do
{
va = (uint64_t)addr & (~(line_size - 1));
// Clean data cache line to PoC (Point of Coherence) by va.
__asm__ __volatile__("dc cvac, %0" : : "r" (va));
// increment addres to next line and decrement lenght
addr = (void*)((uint64_t)addr + line_size);
} while (addr < end_addr);
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void CleanL1DcacheAll(void)
{
uint64_t ccsidr_el1; // Cache Size ID
int num_sets; // number of sets
int num_ways; // number of ways
uint32_t wayset; // wayset parameter
__asm__ __volatile__("mrs %0, ccsidr_el1" : : "=r" (ccsidr_el1));// Read Cache Size ID
// Fill number of sets and number of ways from ccsidr_el1 register This walues are decremented by 1
num_sets = ((ccsidr_el1 >> 32) & 0x7FFF) + 1;
num_ways = ((ccsidr_el1 >> 0) & 0x7FFF) + 1;
// clean all lines (all Sets in all ways)
for (int way = 0 ; way < num_ways; way++){
for (int set = 0 ;set < num_sets; set++){
wayset = (way << 30) | (set << 5);
__asm__ __volatile__("dc csw, %0" : : "r" (wayset));
}
}
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void FlushL1Dcache(uintptr_t start, uintptr_t end)
{
void* addr = (void*)start;
// size_t length=end-start;
uint64_t va;
uint64_t ccsidr_el1 = 0, line_size = 0;
const void * end_addr = (const void *)((uint64_t)end);
// get the cache line size
__asm__ __volatile__("mrs %0, ccsidr_el1" : "=r" (ccsidr_el1));
line_size = 1 << ((ccsidr_el1 & 0x7) + 4);
do
{
// Clean data cache line to PoC (Point of Coherence) by va.
va = (uint64_t) ((uint64_t)addr & (~(line_size - 1))); //addr & va_VIRTUAL_ADDRESS_MASK
__asm__ __volatile__("dc civac, %0" : : "r" (va));
// increment addres to next line and decrement lenght
addr = (void*)((uint64_t)addr + line_size);
} while (addr < end_addr);
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void FlushL1DcacheAll(void)
{
uint64_t ccsidr_el1; // Cache Size ID
int num_sets; // number of sets
int num_ways; // number of ways
uint32_t wayset; // wayset parameter
__asm__ __volatile__("mrs %0, ccsidr_el1" : : "=r" (ccsidr_el1));// Read Cache Size ID
// Fill number of sets and number of ways from ccsidr_el1 register This walues are decremented by 1
num_sets = ((ccsidr_el1 >> 32) & 0x7FFF) + 1;
num_ways = ((ccsidr_el1 >> 0) & 0x7FFF) + 1;
// clean and invalidate all lines (all Sets in all ways)
for (int way = 0 ; way < num_ways; way++){
for (int set = 0 ;set < num_sets; set++){
wayset = (way << 30) | (set << 5);
__asm__ __volatile__("dc cisw, %0" : : "r" (wayset));
}
}
// All Cache, Branch predictor and TLB maintenance operations before followed instruction complete
DSB();
}
void InvalidateL1IcacheAll()
{
__asm__ __volatile__("ic iallu\n\t");
// synchronize context on this processor
ISB();
}
void InvalidateL1Icache(uintptr_t start, uintptr_t end)
{
uintptr_t length = end - start;
uintptr_t addr = start;
uint64_t ccsidr_el1;
uint64_t line_size;
uint64_t va;
// get the cache line size
__asm__ __volatile__("mrs %0, ccsidr_el1" : : "=r" (ccsidr_el1));
line_size = 1 << ((ccsidr_el1 & 0x7) + 4);
while (addr < end){
va = (uint64_t)addr & (~(line_size - 1));
//Invalidate data cache line to PoC (Point of Coherence) by va.
__asm__ __volatile__("dc ivau, %0 " : : "r" (va));
// increment addres to next line and decrement lenght
addr = (void*)((uint64_t)addr + line_size);
}
// synchronize context on this processor
ISB();
}
void EnableL1Dcache()
{
uint64_t sctlr_el1; // System Control Register
// read sctlr_el1
__asm__ __volatile__("mrs %0, sctlr_el1" : :"=r" (sctlr_el1));
if (!(sctlr_el1 & SCTLR_EL1_DCACHE_ENABLE))
{
// set C bit (data caching enable)
sctlr_el1 |= SCTLR_EL1_DCACHE_ENABLE;
// write modified sctlr_el1
__asm__ __volatile__("msr sctlr_el1, %0" : : "r" (sctlr_el1));
//data synchronization barrier
DSB();
}
}
void DisableL1Dcache()
{
uint64_t sctlr_el1; // System Control Register
// read sctlr_el1
__asm__ __volatile__("mrs %0, sctlr_el1" : : "=r" (sctlr_el1));
// set C bit (data caching enable)
sctlr_el1 &= ~ SCTLR_EL1_DCACHE_ENABLE;
// write modified sctlr_el1
__asm__ __volatile__("msr sctlr_el1, %0" : : "r" (sctlr_el1));
//data synchronization barrier
DSB();
}
void EnableL1Icache()
{
uint64_t sctlr_el1; // System Control Register
// read sctlr_el1
__asm__ __volatile__("mrs %0, sctlr_el1" : : "=r" (sctlr_el1));
if (!(sctlr_el1 & SCTLR_EL1_ICACHE_ENABLE))
{
// set I bit (data caching enable)
sctlr_el1 |= SCTLR_EL1_ICACHE_ENABLE;
// write modified sctlr_el1
__asm__ __volatile__("msr sctlr_el1, %0" : : "r" (sctlr_el1));
//Instruction synchronization barrier
ISB();
}
}
void DisableL1Icache()
{
uint64_t sctlr_el1; // System Control Register
// read sctlr_el1
__asm__ __volatile__("mrs %0, sctlr_el1" : : "=r" (sctlr_el1));
// set I bit (data caching enable)
sctlr_el1 &= ~ SCTLR_EL1_ICACHE_ENABLE;
// write modified sctlr_el1
__asm__ __volatile__("msr sctlr_el1, %0" : : "r" (sctlr_el1));
//Instruction synchronization barrier
ISB();
}

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file: l1_cache.h
* @brief: the general management of L1 cache
* @version: 1.0
* @author: AIIT XUOS Lab
* @date: 2024/4/23
*
*/
/*************************************************
File name: l1_cache.h
Description: the general management of L1 cache
Others:
History:
Author: AIIT XUOS Lab
Modification:
1、define the l1 cache operations
*************************************************/
#include "cortex-a72/core.h"
#include <stdint.h>
/*
* L1 Cache Operation:
*
* IVAC -Invalidate by Virtual Address, to Point of Coherency AArch32Equivalent :DCIMVAC
*
* ISW -Invalidate by Set/Way AArch32Equivalent :DCISW
*
*CVAC -Clean by Virtual Address to Point of Coherency AArch32Equivalent :DCCMVAC
*
*CSW -Clean by Set/Way AArch32Equivalent :DCCSW
*
*CVAU -Clean by Virtual Address to Point of Unification AArch32Equivalent :DCCMVAU
*
*CIVAC -Clean and invalidate data cache line by VA to PoC. AArch32Equivalent :DCCIMVAC
*
*ISW -Clean and invalidate data cache line by Set/Way. AArch32Equivalent :DCCISW
*/
#define SCTLR_EL1_ICACHE_ENABLE(1 << 12) //!< Instruction cache enable
#define SCTLR_EL1_DCACHE_ENABLE (1 << 2) //!< Data cache enable
void InvalidateL1Dcache(uintptr_t start, uintptr_t end);
void InvalidateL1DcacheAll(void);
void CleanL1Dcache(uintptr_t start, uintptr_t end);
void CleanL1DcacheAll(void);
void FlushL1Dcache(uintptr_t start, uintptr_t end);
void FlushL1DcacheAll(void);
void InvalidateL1IcacheAll(void);
void InvalidateL1Icache(uintptr_t start, uintptr_t end);
void EnableL1Icache(void);
void DisableL1Icache();
void EnableL1Dcache();
void DisableL1Dcache();

2
Ubiquitous/XiZi_AIoT/hardkernel/intr/Makefile
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@ -1,4 +1,4 @@
SRC_DIR := arm/armv7-a/cortex-a9 SRC_DIR := arm
SRC_FILES := spinlock.c SRC_FILES := spinlock.c
include $(KERNEL_ROOT)/compiler.mk include $(KERNEL_ROOT)/compiler.mk

9
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/Makefile Normal file
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@ -0,0 +1,9 @@
ifneq ($(findstring $(BOARD), ok1028a-c), )
SRC_DIR := armv8-a
endif
ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), )
SRC_DIR := armv7-a
endif
include $(KERNEL_ROOT)/compiler.mk

6
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@ -0,0 +1,6 @@
ifneq ($(findstring $(BOARD), imx6q-sabrelite zynq7000-zc702), )
SRC_DIR := cortex-a9
endif
include $(KERNEL_ROOT)/compiler.mk

3
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/Makefile Normal file
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@ -0,0 +1,3 @@
SRC_DIR := cortex-a72
include $(KERNEL_ROOT)/compiler.mk

121
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/error_debug.c Normal file
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/* Copyright (c) 2006-2018 Frans Kaashoek, Robert Morris, Russ Cox,
* Massachusetts Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* @file error_debug.c
* @brief handle program abort
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.4.25
*/
/*************************************************
File name: error_debug.c
Description: handle program abort
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. Take only armv8 abort reason part(_abort_reason).
2. Modify iabort and dabort handler(in dabort_handler() and iabort_handler())
*************************************************/
#include "log.h"
#include "multicores.h"
#include "spinlock.h"
#include "syscall.h"
__attribute__((always_inline)) static inline void _abort_reason(uint32_t fault_status)
{
if ((fault_status & 0x3f) == 0x21) // Alignment failure
KPrintf("reason: alignment\n");
else if ((fault_status & 0x3f) == 0x4) // Translation fault, level 0
KPrintf("reason: sect. translation level 0\n");
else if ((fault_status & 0x3f) == 0x5) // Translation fault, level 1
KPrintf("reason: sect. translation level 1\n");
else if ((fault_status & 0x3f) == 0x6) // Translation fault, level 2
KPrintf("reason: sect. translation level 2\n");
else if ((fault_status & 0x3f) == 0x7) // Translation fault, level 3
KPrintf("reason: sect. translation level 3\n");
else if ((fault_status & 0x3f) == 0x3d) //Section Domain fault
KPrintf("reason: sect. domain\n");
else if ((fault_status & 0x3f) == 0x13) // Permission level 1
KPrintf("reason: sect. permission level 1\n");
else if ((fault_status & 0x3f) == 0x14) // Permission level 2
KPrintf("reason: sect. permission level 2\n");
else if ((fault_status & 0x3f) == 0x15) // Permission level 3
KPrintf("reason: sect. permission level 3\n");
else if ((fault_status & 0x3f) == 0x8) // External abort
KPrintf("reason: ext. abort\n");
else if ((fault_status & 0x3f) == 0x9) // Access flag fault, level 1
KPrintf("reason: sect. Access flag fault level 1\n");
else if ((fault_status & 0x3f) == 0xa) // Access flag fault, level 2
KPrintf("reason: sect. Access flag fault level 2\n");
else if ((fault_status & 0x3f) == 0xb) // Access flag fault, level 3
KPrintf("reason: sect. Access flag fault level 3\n");
else
KPrintf("reason: unknown???\n");
}
void dump_tf(struct trapframe* tf)
{
KPrintf(" elr_el1: 0x%x\n", tf->elr_el1);
KPrintf(" spsr_el1: 0x%x\n", tf->spsr_el1);
KPrintf(" x0: 0x%x\n", tf->x0);
KPrintf(" x1: 0x%x\n", tf->x1);
KPrintf(" x2: 0x%x\n", tf->x2);
KPrintf(" x3: 0x%x\n", tf->x3);
KPrintf(" x4: 0x%x\n", tf->x4);
KPrintf(" x5: 0x%x\n", tf->x5);
KPrintf(" x6: 0x%x\n", tf->x6);
KPrintf(" x7: 0x%x\n", tf->x7);
KPrintf(" x8: 0x%x\n", tf->x8);
KPrintf(" x9: 0x%x\n", tf->x9);
KPrintf(" x10: 0x%x\n", tf->x10);
KPrintf(" x11: 0x%x\n", tf->x11);
KPrintf(" x12: 0x%x\n", tf->x12);
KPrintf(" x13: 0x%x\n", tf->x13);
KPrintf(" x14: 0x%x\n", tf->x14);
KPrintf(" x15: 0x%x\n", tf->x15);
KPrintf(" x16: 0x%x\n", tf->x16);
KPrintf(" x17: 0x%x\n", tf->x17);
KPrintf(" x18: 0x%x\n", tf->x18);
KPrintf(" x19: 0x%x\n", tf->x19);
KPrintf(" x20: 0x%x\n", tf->x20);
KPrintf(" x21: 0x%x\n", tf->x21);
KPrintf(" x22: 0x%x\n", tf->x22);
KPrintf(" x23: 0x%x\n", tf->x23);
KPrintf(" x24: 0x%x\n", tf->x24);
KPrintf(" x25: 0x%x\n", tf->x25);
KPrintf(" x26: 0x%x\n", tf->x26);
KPrintf(" x27: 0x%x\n", tf->x27);
KPrintf(" x28: 0x%x\n", tf->x28);
KPrintf(" x29: 0x%x\n", tf->x29);
KPrintf(" pc: 0x%x\n", tf->pc);
}
void handle_undefined_instruction(struct trapframe* tf)
{
// unimplemented trap handler
KPrintf("undefined instruction at %x\n", tf->pc);
panic("");
}

27
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/gicv3/arch_gicv3.h Normal file
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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file arch_gicv3.h
* @brief gicv3 operation
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.05.07
*/
/*************************************************
File name: arch_gicv3.h
Description: gicv3 operation
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. Rename file
*************************************************/

0
Ubiquitous/XiZi_AIoT/hardkernel/arch/arm/armv8-a/cortex-a72/boot.S → Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/gicv3/gicv3.c
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0
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/gicv3/gicv3.h Normal file
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0
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/gicv3/sysreg.h Normal file
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109
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/hard_spinlock.S Normal file
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/*
* Copyright (c) 2013, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 THE COPYRIGHT HOLDER OR 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.
*/
/*
* Portions Copyright (c) 2011-2012 ARM Ltd. All rights reserved.
*/
/**
* @file hard_spinlock.S
* @brief spinlock implementation
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.11
*/
/*************************************************
File name: hard_spinlock.S
Description: spinlock implementation
Others:
History:
Author: AIIT XUOS Lab
Modification:
*************************************************/
.code 64
.section ".text","ax"
.global cpu_get_current
#define UNLOCKED 0xFF
// int spinlock_lock(spinlock_t * lock, uint64_t timeout)
.global _spinlock_lock
.func _spinlock_lock
_spinlock_lock:
ldxr x1, [x0] // check if the spinlock is currently unlocked
cmp x1, #UNLOCKED
wfene // wait for an event signal
bne _spinlock_lock
mrs x1, mpidr_el1 // get our CPU ID
and x1, x1, #3
stxr x2, x1, [x0]
cbnz x2, _spinlock_lock // check if the write was successful, if the write failed, start over
dmb // Ensure that accesses to shared resource have completed
mov x0, #0
ret
.endfunc
// void spinlock_unlock(spinlock_t * lock)
.global _spinlock_unlock
.func _spinlock_unlock
_spinlock_unlock:
mrs x1, mpidr_el1 // get our CPU ID
and x1, x1, #3
ldr x2, [x0]
cmp x1, x2
bne 1f //doesn't match,jump to 1
dmb
mov x1, #UNLOCKED
str x1, [x0]
dsb //Ensure that no instructions following the barrier execute until
// all memory accesses prior to the barrier have completed.
sev // send event to wake up other cores waiting on spinlock
mov x0, #0 // return success
ret
1:
mov x0, #1 //doesn't match, so exit with failure
ret

110
Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv8-a/cortex-a72/ok1028a-c/irq_numbers.h Normal file
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@ -0,0 +1,110 @@
/**
* @file irq_numbers.c
* @brief irq numbers
* @version 3.0
* @author AIIT XUOS Lab
* @date 2023.08.25
*/
/*************************************************
File name: irq_numbers.c
Description: irq numbers
Others:
History:
1. Date: 2023-08-28
Author: AIIT XUOS Lab
Modification:
1. Add HW_NR_IRQS
*************************************************/
#if !defined(__IRQ_NUMBERS_H__)
#define __IRQ_NUMBERS_H__
#define HW_NR_IRQS NR_OK1028_INTRS
////////////////////////////////////////////////////////////////////////////////
// Definitions
////////////////////////////////////////////////////////////////////////////////
//! @brief i.MX6 interrupt numbers.
//!
//! This enumeration lists the numbers for all of the interrupts available on the i.MX6 series.
//! Use these numbers when specifying an interrupt to the GIC.
//!
//! The first 16 interrupts are special in that they are reserved for software interrupts generated
//! by the SWI instruction.
enum _ls_interrupts {
SW_INTERRUPT_0 = 0, //!< Software interrupt 0.
SW_INTERRUPT_1 = 1, //!< Software interrupt 1.
SW_INTERRUPT_2 = 2, //!< Software interrupt 2.
SW_INTERRUPT_3 = 3, //!< Software interrupt 3.
SW_INTERRUPT_4 = 4, //!< Software interrupt 4.
SW_INTERRUPT_5 = 5, //!< Software interrupt 5.
SW_INTERRUPT_6 = 6, //!< Software interrupt 6.
SW_INTERRUPT_7 = 7, //!< Software interrupt 7.
SW_INTERRUPT_8 = 8, //!< Software interrupt 8.
SW_INTERRUPT_9 = 9, //!< Software interrupt 9.
SW_INTERRUPT_10 = 10, //!< Software interrupt 10.
SW_INTERRUPT_11 = 11, //!< Software interrupt 11.
SW_INTERRUPT_12 = 12, //!< Software interrupt 12.
SW_INTERRUPT_13 = 13, //!< Software interrupt 13.
SW_INTERRUPT_14 = 14, //!< Software interrupt 14.
SW_INTERRUPT_15 = 15, //!< Software interrupt 15.
RSVD_INTERRUPT_16 = 16, //!< Reserved.
RSVD_INTERRUPT_17 = 17, //!< Reserved.
RSVD_INTERRUPT_18 = 18, //!< Reserved.
RSVD_INTERRUPT_19 = 19, //!< Reserved.
RSVD_INTERRUPT_20 = 20, //!< Reserved.
RSVD_INTERRUPT_21 = 21, //!< Reserved.
LS_INT_DEBUG_CC = 22, //!<(cluster-internal) COMMIRQ - Debug communications channel
LS_INT_PMU = 23, //!<(cluster-internal) PMUIRQ - Perfmon*
LS_INT_CTI = 24, //!<(cluster-internal) CTIIRQ - Cross-trigger interface*
LS_INT_VMI = 25, //!<(cluster-internal) VCPUMNTIRQ -Virtual maintenance interface*
LS_INT_WDOG = 28, //!< Watchdog timer
LS_INT_SEC_PHY_TIMER = 29, //!<(cluster-internal) CNTPSIRQ - EL1 Secure physical timer event*
LS_INT_NON_SEC_PHY_TIMER = 30, //!<(cluster-internal) CNTPNSIRQ - EL1 Non-secure physical timer event*
RSVD_INTERRUPT_31 = 31, //!< Reserved.
RSVD_INTERRUPT_32 = 32, //!< Reserved.
RSVD_INTERRUPT_33 = 33, //!< Reserved.
RSVD_INTERRUPT_34 = 34, //!< Reserved.
RSVD_INTERRUPT_35 = 35, //!< Reserved.
RSVD_INTERRUPT_36 = 36, //!< Reserved.
RSVD_INTERRUPT_37 = 37, //!< Reserved.
RSVD_INTERRUPT_38 = 38, //!< Reserved.
RSVD_INTERRUPT_39 = 39, //!< Reserved.
RSVD_INTERRUPT_40 = 40, //!< Reserved.
RSVD_INTERRUPT_41 = 41, //!< Reserved.
RSVD_INTERRUPT_42 = 42, //!< Reserved.
LS_INT_DUART1 = 64, // Logical OR of DUART1 interrupt requests.
LS_INT_I2C1_2 = 66, //!< I2C1 and I2C2 ORed
LS_INT_I2C3_4 = 67, //!< I2C3 and I2C4 ORed
LS_INT_GPIO1_2 = 68, //!< GPIO1 and GPIO2 ORed
LS_INT_GPIO3 = 69, //!< GPIO3
LS_INT_FLETIMER1 = 76, //!< ORed all Flextimer 1 interrupt signals
LS_INT_FLETIMER1 = 77, //!< ORed all Flextimer 2 interrupt signals
LS_INT_FLETIMER1 = 78, //!< ORed all Flextimer 3 interrupt signals
LS_INT_FLETIMER1 = 79, //!< ORed all Flextimer 4 interrupt signals
LS_INT_I2C5_6 = 106, //!< I2C5 and I2C6 ORed
LS_INT_I2C7_8 = 107, //!< I2C7 and I2C8 ORed
LS_INT_USB3_1 = 112, //!< USB1 ORed INT
LS_INT_USB3_2 = 113, //!< USB2 ORed INT
LS_INT_LPUART1 = 264, //!< LPUART1 interrupt request.
LS_INT_LPUART2 = 265, //!< LPUART1 interrupt request.
LS_INT_LPUART3 = 266, //!< LPUART1 interrupt request.
LS_INT_LPUART4 = 267, //!< LPUART1 interrupt request.
LS_INT_LPUART5 = 268, //!< LPUART1 interrupt request.
LS_INT_LPUART6 = 269, //!< LPUART1 interrupt request.
NR_OK1028_INTRS,
};
#endif //__IRQ_NUMBERS_H__

237
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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file trap_common.c
* @brief trap interface of hardkernel
* @version 1.0
* @author AIIT XUOS Lab
* @date 2023.05.06
*/
/*************************************************
File name: trap_common.c
Description: trap interface of hardkernel
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include <string.h>
#include "core.h"
#include "gicv2_common_opa.h"
#include "trap_common.h"
#include "log.h"
#include "multicores.h"
extern void init_stack(uint64_t, uint64_t);
extern void user_trap_swi_enter(void);
extern void trap_iabort(void);
extern void trap_dabort(void);
extern void trap_irq_enter(void);
extern void trap_undefined_instruction(void);
static struct XiziTrapDriver xizi_trap_driver;
void panic(char* s)
{
xizi_trap_driver.cpu_irq_disable();
spinlock_unlock(&whole_kernel_lock);
KPrintf("panic: %s\n", s);
for (;;)
;
}
/* stack for different mode*/
static char mode_stack_pages[NR_CPU][NR_MODE_STACKS][MODE_STACK_SIZE];
extern uint64_t _vector_jumper;
extern uint64_t _vector_start;
extern uint64_t _vector_end;
void init_cpu_mode_stacks(int cpu_id)
{
uint32_t modes[] = { ARM_MODE_EL0_t, ARM_MODE_EL1_t, ARM_MODE_EL2_t, ARM_MODE_EL3_t };
// initialize the stacks for different mode
for (int i = 0; i < sizeof(modes) / sizeof(uint64_t); i++) {
memset(mode_stack_pages[cpu_id][i], 0, MODE_STACK_SIZE);
init_stack(modes[i], (uint64_t)mode_stack_pages[cpu_id][i]);
}
}
void handle_reserved(void)
{
// unimplemented trap handler
LOG("Unimplemented Reserved\n");
panic("");
}
void handle_fiq(void)
{
LOG("Unimplemented FIQ\n");
panic("");
}
static void _sys_irq_init(int cpu_id)
{
/* load exception vectors */
init_cpu_mode_stacks(cpu_id);
if (cpu_id == 0) {
volatile uint64_t* vector_base = &_vector_start;
// Set Interrupt handler start address
vector_base[1] = (uint64_t)trap_undefined_instruction; // Undefined Instruction
vector_base[2] = (uint64_t)user_trap_swi_enter; // Software Interrupt
vector_base[3] = (uint64_t)trap_iabort; // Prefetch Abort
vector_base[4] = (uint64_t)trap_dabort; // Data Abort
vector_base[5] = (uint64_t)handle_reserved; // Reserved
vector_base[6] = (uint64_t)trap_irq_enter; // IRQ
vector_base[7] = (uint64_t)handle_fiq; // FIQ
}
/* active hardware irq responser */
gic_init();
xizi_trap_driver.switch_hw_irqtbl((uint64_t*)&_vector_jumper);
}
static void _cpu_irq_enable(void)
{
arm_set_interrupt_state(true);
}
static void _cpu_irq_disable(void)
{
arm_set_interrupt_state(false);
}
static void _single_irq_enable(int irq, int cpu, int prio)
{
gic_set_irq_priority(irq, prio);
gic_set_irq_security(irq, false); // set IRQ as non-secure
gic_set_cpu_target(irq, cpu, true);
gic_enable_irq(irq, true);
}
static void _single_irq_disable(int irq, int cpu)
{
gic_enable_irq(irq, false);
gic_set_cpu_target(irq, cpu, false);
}
#define VBAR
static inline uint64_t _switch_hw_irqtbl(uint64_t* new_tbl_base)
{
uint64_t old_tbl_base = 0;
//get old irq table base addr
asm volatile("mrs %0, vbar_el1" : "=r" (old_tbl_base));
// set new irq table base addr
asm volatile("msr vbar_el1, %0" : : "r" (new_tbl_base));
return old_tbl_base;
}
static void _bind_irq_handler(int irq, irq_handler_t handler)
{
xizi_trap_driver.sw_irqtbl[irq].handler = handler;
}
static bool _send_sgi(uint32_t irq, uint32_t bitmask, enum SgiFilterType type)
{
if (bitmask > (1 << NR_CPU) - 1) {
return false;
}
enum _gicd_sgi_filter sgi_filter;
switch (type) {
case SgiFilter_TargetList:
sgi_filter = kGicSgiFilter_UseTargetList;
break;
case SgiFilter_AllOtherCPUs:
sgi_filter = kGicSgiFilter_AllOtherCPUs;
break;
default:
sgi_filter = kGicSgiFilter_OnlyThisCPU;
break;
}
gic_send_sgi(irq, bitmask, sgi_filter);
return true;
}
static uint32_t _hw_before_irq()
{
uint32_t vectNum = gic_read_irq_ack();
if (vectNum & 0x200) {
gic_write_end_of_irq(vectNum);
return 0;
}
return vectNum;
}
static uint32_t _hw_cur_int_num(uint32_t int_info)
{
return int_info & 0x1FF;
}
static uint32_t _hw_cur_int_cpu(uint32_t int_info)
{
return (int_info >> 10) & 0x7;
}
static void _hw_after_irq(uint32_t int_info)
{
gic_write_end_of_irq(int_info);
}
static int _is_interruptable(void)
{
uint32_t val;
asm volatile("mrs %0, spsr_el1" : "=r"(val));
return !(val & DIS_INT);
}
int _cur_cpu_id()
{
return cpu_get_current();
}
static struct XiziTrapDriver xizi_trap_driver = {
.sys_irq_init = _sys_irq_init,
.cur_cpu_id = _cur_cpu_id,
.cpu_irq_enable = _cpu_irq_enable,
.cpu_irq_disable = _cpu_irq_disable,
.single_irq_enable = _single_irq_enable,
.single_irq_disable = _single_irq_disable,
.switch_hw_irqtbl = _switch_hw_irqtbl,
.bind_irq_handler = _bind_irq_handler,
.send_sgi = _send_sgi,
.is_interruptable = _is_interruptable,
.hw_before_irq = _hw_before_irq,
.hw_cur_int_num = _hw_cur_int_num,
.hw_cur_int_cpu = _hw_cur_int_cpu,
.hw_after_irq = _hw_after_irq,
};
struct XiziTrapDriver* hardkernel_intr_init(struct TraceTag* hardkernel_tag)
{
xizi_trap_driver.sys_irq_init(0);
xizi_trap_driver.cpu_irq_disable();
return &xizi_trap_driver;
}

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file trampoline.S
* @brief trap in and out code
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024-04-22
*/
/*************************************************
File name: trampoline.S
Description: trap in and out code
Others:
History:
1. Date: 2024-04-22
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include "memlayout.h"
#include "core.h"
.global trap_irq_enter
.global trap_return
.global usertrapret
trap_return:
/* Restore registers. */
ldp x1, x2, [sp], #16
ldp x3, x0, [sp], #16
msr sp_el0, x1
msr spsr_el1, x2
msr elr_el1, x3
ldp x1, x2, [sp], #16
ldp x3, x4, [sp], #16
ldp x5, x6, [sp], #16
ldp x7, x8, [sp], #16
ldp x9, x10, [sp], #16
ldp x11, x12, [sp], #16
ldp x13, x14, [sp], #16
ldp x15, x16, [sp], #16
ldp x17, x18, [sp], #16
ldp x19, x20, [sp], #16
ldp x21, x22, [sp], #16
ldp x23, x24, [sp], #16
ldp x25, x26, [sp], #16
ldp x27, x28, [sp], #16
ldp x29, x30, [sp], #16
eret
user_trap_swi_enter:
// Save trapframe to swi stack
stp x29, x30, [sp, #-16]!
stp x27, x28, [sp, #-16]!
stp x25, x26, [sp, #-16]!
stp x23, x24, [sp, #-16]!
stp x21, x22, [sp, #-16]!
stp x19, x20, [sp, #-16]!
stp x17, x18, [sp, #-16]!
stp x15, x16, [sp, #-16]!
stp x13, x14, [sp, #-16]!
stp x11, x12, [sp, #-16]!
stp x9, x10, [sp, #-16]!
stp x7, x8, [sp, #-16]!
stp x5, x6, [sp, #-16]!
stp x3, x4, [sp, #-16]!
stp x1, x2, [sp, #-16]!
mrs x2, spsr_el1
str x2, [sp, #-8]
str x30, [sp, #-8]
stp sp, elr_el1, [sp, #-16]!
str sp, [sp, #-8]
// Call syscall handler
mov x0, sp
bl software_irq_dispatch
b trap_return
trap_irq_enter:
/* Build trapframe. */
stp x29, x30, [sp, #-16]!
stp x27, x28, [sp, #-16]!
stp x25, x26, [sp, #-16]!
stp x23, x24, [sp, #-16]!
stp x21, x22, [sp, #-16]!
stp x19, x20, [sp, #-16]!
stp x17, x18, [sp, #-16]!
stp x15, x16, [sp, #-16]!
stp x13, x14, [sp, #-16]!
stp x11, x12, [sp, #-16]!
stp x9, x10, [sp, #-16]!
stp x7, x8, [sp, #-16]!
stp x5, x6, [sp, #-16]!
stp x3, x4, [sp, #-16]!
stp x1, x2, [sp, #-16]!
mrs x3, elr_el1
mrs x2, spsr_el1
mrs x1, sp_el0
stp x3, x0, [sp, #-16]!
stp x1, x2, [sp, #-16]!
/* Call trap(struct trapframe*). */
mov x0, sp
bl intr_irq_dispatch
b trap_return
/* Help forkret to call trap_return in an expected way. */
usertrapret:
/* Overlay stack pointer in trap_return. */
mov sp, x0
b trap_return

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file vector.S
* @brief define vector table function
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.4.22
*/
/*************************************************
File name: vector.S
Description: cortex-a9 vector table
Others:
History:
1. Date: 2024.4.22
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include "memlayout.h"
#define ventry .align 7; b trap_irq_enter
#define verror(type) .align 7; mov x0, #(type); b irq_error
.globl vectors
.align 11
vectors:
el1_sp0:
verror(0)
verror(1)
verror(2)
verror(3)
el1_spx:
/* Current EL with SPx */
verror(4)
verror(5)
verror(6)
verror(7)
el0_aarch64:
/* Lower EL using AArch64 */
ventry
ventry
verror(10)
verror(11)
el0_aarch32:
/* Lower EL using AArch32 */
verror(12)
verror(13)
verror(14)
verror(15)

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SRC_DIR := cortex-a72
include $(KERNEL_ROOT)/compiler.mk

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SRC_FILES := bootmmu.c mmu.c pagetable_attr.c
include $(KERNEL_ROOT)/compiler.mk

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file bootmmu.c
* @brief build pagetable and enable mmu in boot time
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.26
*/
/*************************************************
File name: bootmmu.c
Description: build pagetable and enable mmu in boot time
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include "core.h"
#include "memlayout.h"
#include "mmu.h"
#include "mmio_access.h"
#include <stdint.h>
#include <string.h>
extern uint64_t kernel_data_end[];
extern uint64_t kernel_data_begin[];
#define NR_PDE_ENTRIES 512
#define L1_TYPE_SEC (2 << 0)
#define L1_SECT_DEV ((0B00)<<2) //Device memory
#define L1_SECT_AP0 (1 << 6) //Data Access Permissions
uint64_t boot_ptable[NR_PTE_ENTRIES] __attribute__((aligned(0x4000))) = { 0 };
static void build_boot_pgdir()
{
// dev mem
uint64_t dev_mem_end_idx = (DEV_PHYMEM_BASE + DEV_MEM_SZ) >> LEVEL3_PDE_SHIFT;
for (uint64_t i = DEV_PHYMEM_BASE >> LEVEL3_PDE_SHIFT; i < dev_mem_end_idx; i++) {
boot_pgdir[i] = (i << LEVEL3_PDE_SHIFT) | L1_TYPE_SEC | L1_SECT_DEV | L1_SECT_AP0;
boot_pgdir[MMIO_P2V_WO(i << LEVEL3_PDE_SHIFT) >> LEVEL3_PDE_SHIFT] = (i << LEVEL3_PDE_SHIFT) | L1_TYPE_SEC | L1_SECT_DEV | L1_SECT_AP0;
}
// identical mem
uint64_t idn_mem_start_idx = PHY_MEM_BASE >> LEVEL3_PDE_SHIFT;
uint64_t idn_mem_end_idx = PHY_MEM_STOP >> LEVEL3_PDE_SHIFT;
for (uint64_t i = idn_mem_start_idx; i < idn_mem_end_idx; i++) {
boot_pgdir[i] = i << LEVEL3_PDE_SHIFT | L1_TYPE_SEC | L1_SECT_AP0;
}
// kern mem
uint64_t kern_mem_start_idx = KERN_MEM_BASE >> LEVEL3_PDE_SHIFT;
uint64_t kern_mem_end_idx = (KERN_MEM_BASE + (PHY_MEM_STOP - PHY_MEM_BASE)) >> LEVEL3_PDE_SHIFT;
for (uint64_t i = kern_mem_start_idx; i < kern_mem_end_idx; i++) {
boot_pgdir[i] = V2P(i << LEVEL3_PDE_SHIFT) | L1_TYPE_SEC | L1_SECT_AP0;
}
}
static void load_boot_pgdir()
{
uint64_t val;
// DACR_W(0x55555555); // set domain access control as client
TTBCR_W(0x0);
TTBR0_W((uint64_t)boot_pgdir);
// Enable paging using read/modify/write
SCTLR_R(val);
val |= (1 << 0); //EL1 and EL0 stage 1 address translation enabled.
val |= (1 << 1); //Alignment check enable
val |= (1 << 2); // Cacheability control, for data caching.
val |= (1 << 12); // Instruction access Cacheability control
val |= (1 << 19); //forced to XN for the EL1&0 translation regime.
SCTLR_W(val);
// flush all TLB
DSB();
CLEARTLB(0);
ISB();
}
extern void main(void);
static bool _bss_inited = false;
void bootmain()
{
build_boot_pgdir();
load_boot_pgdir();
__asm__ __volatile__("add sp, sp, %0" ::"r"(KERN_MEM_BASE - PHY_MEM_BASE));
if (!_bss_inited) {
memset(&kernel_data_begin, 0x00, (uint64_t)kernel_data_end - (uint64_t)kernel_data_begin);
_bss_inited = true;
}
main();
}

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file mmu.h
* @brief mmu related configure and registers
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024-04-26
*/
/*************************************************
File name: mmu.h
Description: mmu related configure and registers
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#pragma once
#include <stdint.h>
#include "memlayout.h"
#include "page_table_entry.h"
#define TCR_IPS (0 << 32)
#define TCR_TG1_4K (0b10 << 30)
#define TCR_SH1_INNER (0b11 << 28)
#define TCR_ORGN1_IRGN1_WRITEBACK_WRITEALLOC ((0b01 << 26) | (0b01 << 24))
#define TCR_TG0_4K (0 << 14)
#define TCR_SH0_INNER (0b11 << 12)
#define TCR_ORGN0_IRGN0_WRITEBACK_WRITEALLOC ((0b01 << 10) | (0b01 << 8))
#define TCR_VALUE \
(TCR_IPS | \
TCR_TG1_4K | TCR_SH1_INNER | TCR_ORGN1_IRGN1_WRITEBACK_WRITEALLOC | \
TCR_TG0_4K | TCR_SH0_INNER | TCR_ORGN0_IRGN0_WRITEBACK_WRITEALLOC)
enum AccessPermission {
AccessPermission_NoAccess = 0,
AccessPermission_KernelOnly = 1, //EL1
AccessPermission_Reserved = 2,
AccessPermission_KernelUser = 3, //EL1&EL0
};
void GetDevPteAttr(uintptr_t* attr);
void GetUsrPteAttr(uintptr_t* attr);
void GetUsrDevPteAttr(uintptr_t* attr);
void GetKernPteAttr(uintptr_t* attr);
void GetPdeAttr(uintptr_t* attr);
/*
Enable MMU, cache, write buffer, etc.
*/
#define SCTLR_R(val) __asm__ volatile("mrs %0, sctlr_el1" : "=r"(val))
#define SCTLR_W(val) __asm__ volatile("msr sctlr_el1, %0" :: "r"(val))
/*
Read and write mmu pagetable register base addr
*/
#define TTBR0_R(val) __asm__ volatile("mrs %0, ttbr0_el1" : "=r"(val))
#define TTBR0_W(val) __asm__ volatile("msr ttbr0_el1, %0" :: "r"(val))
/*
TTBCR is used for choosing TTBR0 and TTBR1 as page table register.
When TTBCR is set to 0, TTBR0 is selected by default.
*/
#define TTBCR_R(val) __asm__ volatile("mrs %0, ttbcr_el1" : "=r"(val))
#define TTBCR_W(val) __asm__ volatile("msr ttbcr_el1, %0" :: "r"(val))
/*
DACR registers are used to control memory privilage.
The domain value is usually 0x01. The memory privilage will be controled by pte AP/APX
*/
//#define DACR_R(val) __asm__ volatile("mrs %0, dacr_el1" : "=r"(val))
//#define DACR_W(val) __asm__ volatile("msr dacr_el1, %0" :: "r"(val))
/*
Flush TLB when loading a new page table.
@note If nG is not set in the pte attribute, process switching need flush tlb.
*/
#define CLEARTLB(val) __asm__ volatile("tlbi vmalle1")
/*
When nG is set in the pte attribute, the process is assigned an ASID, which is stored in the lower 8 bits of the CONTEXTIDR register.
When the process switches, the flush TLB is no longer required anymore.
*/
#define CONTEXTIDR_R(val) __asm__ volatile("mrs %0, contextidr_el1" : "=r"(val))
#define CONTEXTIDR_W(val) __asm__ volatile("msr contextidr_el1, %0" :: "r"(val))
/* virtual and physical addr translate */
#define V2P(a) ((uint64_t)((uint64_t)(a)-KERN_OFFSET))
#define P2V(a) ((void*)((void*)(a) + KERN_OFFSET))
#define V2P_WO(x) ((x)-KERN_OFFSET) // same as V2P, but without casts
#define P2V_WO(x) ((x) + KERN_OFFSET) // same as V2P, but without casts
#ifndef __ASSEMBLER__
#include <stdint.h>
__attribute__((always_inline)) static inline uint64_t v2p(void* a) { return ((uint64_t)(a)) - KERN_MEM_BASE; }
__attribute__((always_inline)) static inline void* p2v(uint64_t a) { return (void*)((a) + KERN_MEM_BASE); }
#endif

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/*
* Copyright (c) 2008-2012, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 THE COPYRIGHT HOLDER OR 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.
*/
/**
* @file page_table_entry.h
* @brief mmu related configure and registers
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024-04-25
*/
/*************************************************
File name: page_table_entry.h
Description: mmu related configure and registers
Others: take imx_platform_sdk sdk/core/src/mmu.c for references
https://github.com/flit/imx6_platform_sdk
History:
Author: AIIT XUOS Lab
Modification:
1. modify the L1-level page table name and properties name to apply hardkernel implementation
*************************************************/
#pragma once
#include <stdint.h>
typedef union {
uintptr_t entry;
struct {
uint64_t desc_type : 2; // (Invalid, PageTable, Section, SuperSection)/(Invalid, Table, Block)
//uint64_t B : 1; // Bufferable
// uint64_t C : 1; // Cacheable
uint64_t XN : 1; // Execute-not
//uint64_t Domain : 4; // Domain
uint64_t _impl_defined : 1; // Implementation defined, should be zero.
uint64_t AP1_0 : 2; // Access permissions AP
uint64_t TEX : 3; // TEX remap ==attr_idx The memory type, Device or Normal.
uint64_t AP2 : 1; // Access permissions AP[2]
uint64_t S : 1; // Shareable
uint64_t NG : 1; // Not-global
uint64_t _zero : 1; // Should be zero.
uint64_t NS : 1; // Non-secure
uint64_t section_addr :36 ; // Section Physical base address
uint64_t AF : 1; // Access flag
};
} __attribute__((packed)) PageDirEntry;
typedef union {
uint64_t entry;
struct {
uint64_t desc_type : 2; // (Invalid, Reserved,4kb, 16kb 64kb )
// uint64_t B : 1; // Bufferable
//uint64_t C : 1; // Cacheable
uint64_t AP1_0 : 2;//Access permissions
uint64_t TEX : 3;//TEX remap ==attr_idx The memory type, Device or Normal.
uint64_t AP2 : 1;
uint64_t S : 1; // Shareable
uint64_t NG : 1; // Not-global
uint64_t page_addr :36 ;
uint64_t AF : 1; // Access flag
};
} __attribute__((packed)) PageTblEntry;

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file mmu.c
* @brief mmu operations
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024.04.26
*/
/*************************************************
File name: mmu.c
Description: mmu operations
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include <string.h>
#include "mmu.h"
#include "cache_common_ope.h"
#include "mmu_common.h"
#include "trap_common.h"
// extern struct MmuCommonDone mmu_common_done;
static struct MmuDriverRightGroup right_group;
void load_pgdir_critical(uintptr_t pgdir_paddr, struct TraceTag* intr_driver_tag)
{
/* get cache driver */
struct ICacheDone* p_icache_done = AchieveResource(&right_group.icache_driver_tag);
struct DCacheDone* p_dcache_done = AchieveResource(&right_group.dcache_driver_tag);
/* get intr driver */
struct XiziTrapDriver* p_intr_driver = AchieveResource(intr_driver_tag);
p_intr_driver->cpu_irq_disable();
TTBR0_W((uint64_t)pgdir_paddr);
CLEARTLB(0);
p_icache_done->invalidateall();
p_dcache_done->flushall();
p_intr_driver->cpu_irq_enable();
}
void load_pgdir(uintptr_t pgdir_paddr)
{
/* get cache driver */
struct ICacheDone* p_icache_done = AchieveResource(&right_group.icache_driver_tag);
struct DCacheDone* p_dcache_done = AchieveResource(&right_group.dcache_driver_tag);
TTBR0_W((uint64_t)pgdir_paddr);
CLEARTLB(0);
p_icache_done->invalidateall();
p_dcache_done->flushall();
}
__attribute__((always_inline)) inline static void _tlb_flush(uintptr_t va)
{
__asm__ volatile("tlbi vae1is, %0" :: "r"(va) );
}
static void tlb_flush_range(uintptr_t vstart, int len)
{
uintptr_t vaddr = vstart;
uintptr_t vend = vaddr + len;
for (; vaddr < vend; vaddr += PAGE_SIZE) {
_tlb_flush(vaddr);
}
}
static void tlb_flush_all()
{
CLEARTLB(0);
}
static struct MmuCommonDone mmu_common_done = {
.MmuDevPteAttr = GetDevPteAttr,
.MmuPdeAttr = GetPdeAttr,
.MmuUsrPteAttr = GetUsrPteAttr,
.MmuUsrDevPteAttr = GetUsrDevPteAttr,
.MmuKernPteAttr = GetKernPteAttr,
.LoadPgdirCrit = load_pgdir_critical,
.LoadPgdir = load_pgdir,
.TlbFlushAll = tlb_flush_all,
.TlbFlush = tlb_flush_range,
};
struct MmuCommonDone* hardkernel_mmu_init(struct TraceTag* hardkernel_tag, char* icache_name, char* dcache_name)
{
/* init right group for mmu driver */
AchieveResourceTag(&right_group.icache_driver_tag, hardkernel_tag, icache_name);
AchieveResourceTag(&right_group.dcache_driver_tag, hardkernel_tag, dcache_name);
return &mmu_common_done;
}

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/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file memlayout.h
* @brief virtual memory and physical memory layout
* @version 1.0
* @author AIIT XUOS Lab
* @date 2024-04-25
*/
/*************************************************
File name: memlayout.h
Description: virtual memory and physical memory layout
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#pragma once
// Memory layout
// clang-format off
#define ARCH_BIT 64
/* A72 physical memory layout */
#define PHY_MEM_BASE (0x00000000)
#define PHY_USER_FREEMEM_BASE (0x30000000)
#define PHY_USER_FREEMEM_TOP (0x80000000)
#define PHY_MEM_STOP (0x80000000)
/* PTE-PAGE_SIZE */
#define LEVEL4_PTE_SHIFT 12
#define LEVEL4_PTE_SIZE (1 << LEVEL4_PTE_SHIFT)
/* PDE-SECTION_SIZE */
#define LEVEL3_PDE_SHIFT 21
#define LEVEL3_PDE_SIZE (1 << LEVEL3_PDE_SHIFT)
#define LEVEL2_PTE_SHIFT 30
#define LEVEL1_PTE_SHIFT 39
#define NUM_LEVEL3_PDE (1 << (ARCH_BIT - LEVEL3_PDE_SHIFT)) // how many PTE in a PT
#define NUM_LEVEL4_PTE (1 << (LEVEL3_PDE_SHIFT - LEVEL4_PTE_SHIFT)) // how many PTE in a PT
#define NUM_TOPLEVEL_PDE NUM_LEVEL3_PDE
#define PAGE_SIZE LEVEL4_PTE_SIZE
#define MAX_NR_FREE_PAGES ((PHY_MEM_STOP - PHY_MEM_BASE) >> LEVEL4_PTE_SHIFT)
/* Deivce memory layout */
#define DEV_PHYMEM_BASE (0x0000000000000000)
#define DEV_VRTMEM_BASE (0x0000ffffffffffff)
#define DEV_MEM_SZ (0x10000000)
/* User memory layout */
#define USER_STACK_SIZE PAGE_SIZE
#define USER_MEM_BASE (0x0000000000000000)
#define USER_MEM_TOP DEV_VRTMEM_BASE
#define USER_IPC_SPACE_BASE (0x7000000000000000)
#define USER_IPC_SPACE_TOP (USER_MEM_TOP - USER_STACK_SIZE)
/* Kernel memory layout */
#define KERN_MEM_BASE (0xffff000000000000) // First kernel virtual address
#define KERN_OFFSET (KERN_MEM_BASE - PHY_MEM_BASE)
#define V2P(a) (((uint64)(a)) - KERN_MEM_BASE)
#define P2V(a) ((void *)(((char *)(a)) + KERN_MEM_BASE))
#define V2P_WO(x) ((x) - KERN_MEM_BASE) // same as V2P, but without casts
#define P2V_WO(x) ((x) + KERN_MEM_BASE) // same as P2V, but without casts
// one beyond the highest possible virtual address.
#define MAXVA (KERN_MEM_BASE + (1ULL<<38))
// qemu puts UART registers here in physical memory.
#define UART0 (KERN_MEM_BASE + 0x09000000L)
#define UART0_IRQ 33
// virtio mmio interface
#define VIRTIO0 (KERN_MEM_BASE + 0x0a000000L)
#define VIRTIO0_IRQ 48
#define TIMER0_IRQ 27
// interrupt controller GICv3
#define GICV3 (KERN_MEM_BASE + 0x08000000L)
#define GICV3_REDIST (KERN_MEM_BASE + 0x080a0000L)
// map kernel stacks beneath the trampoline,
// each surrounded by invalid guard pages.
#define PGSIZE 4096 // bytes per page
#define KSTACK(p) (MAXVA - ((p)+1) * 2*PGSIZE)
// extract the three 9-bit page table indices from a virtual address.
#define PXMASK 0x1FF // 9 bits
#define PXSHIFT(level) (39-(level)*9)
#define PX(level, va) ((((uint64)(va)) >> PXSHIFT(level)) & PXMASK)
// clang-format on

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@ -0,0 +1,97 @@
/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
/**
* @file pagetable_attr.c
* @brief mmu entry attributes
* @version 1.
* @author AIIT XUOS Lab
* @date 2023.04.26
*/
/*************************************************
File name: pagetable_attr.c
Description: mmu entry attributes
Others:
History:
Author: AIIT XUOS Lab
Modification:
1. first version
*************************************************/
#include "mmu.h"
#include "mmu_common.h"
void GetUsrPteAttr(uintptr_t* attr)
{
static char init = 0;
static PageTblEntry usr_pte_attr;
if (init == 0) {
init = 1;
usr_pte_attr.entry = 0;
usr_pte_attr.desc_type = PAGE_4K;
usr_pte_attr.B = 1;
usr_pte_attr.C = 1;
usr_pte_attr.S = 1;
usr_pte_attr.AP1_0 = AccessPermission_KernelUser;
}
*attr = usr_pte_attr.entry;
}
void GetUsrDevPteAttr(uintptr_t* attr)
{
static char init = 0;
static PageTblEntry usr_pte_attr;
if (init == 0) {
init = 1;
usr_pte_attr.entry = 0;
usr_pte_attr.desc_type = PAGE_4K;
usr_pte_attr.AP1_0 = AccessPermission_KernelUser;
}
*attr = usr_pte_attr.entry;
}
void GetDevPteAttr(uintptr_t* attr)
{
static char init = 0;
static PageTblEntry dev_pte_attr;
if (init == 0) {
init = 1;
dev_pte_attr.entry = 0;
dev_pte_attr.desc_type = PAGE_4K;
dev_pte_attr.AP1_0 = AccessPermission_KernelOnly;
}
*attr = dev_pte_attr.entry;
}
void GetKernPteAttr(uintptr_t* attr)
{
static char init = 0;
static PageTblEntry kern_pte_attr;
if (init == 0) {
init = 1;
kern_pte_attr.entry = 0;
kern_pte_attr.desc_type = PAGE_4K;
kern_pte_attr.B = 1;
kern_pte_attr.C = 1;
kern_pte_attr.S = 1;
kern_pte_attr.AP1_0 = AccessPermission_KernelOnly;
}
*attr = kern_pte_attr.entry;
}
void GetPdeAttr(uintptr_t* attr)
{
*attr = PAGE_DIR_COARSE;
}

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Ubiquitous/XiZi_AIoT/path_kernel.mk
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@ -38,6 +38,16 @@ KERNELPATHS += \
-I$(KERNEL_ROOT)/hardkernel/cache/L2/pl310/ -I$(KERNEL_ROOT)/hardkernel/cache/L2/pl310/
endif endif
ifeq ($(BOARD), ok1028a-c)
KERNELPATHS += \
-I$(KERNEL_ROOT)/hardkernel/arch/arm/armv8-a/cortex-a72/preboot_for_$(BOARD)/include \
-I$(KERNEL_ROOT)/hardkernel/arch/arm/armv8-a/cortex-a72/ \
-I$(KERNEL_ROOT)/hardkernel/mmu/arm/armv8-a/cortex-a72/$(BOARD) \
-I$(KERNEL_ROOT)/hardkernel/mmu/arm/armv8-a/cortex-a72/include \
-I$(KERNEL_ROOT)/hardkernel/intr/arm/armv8-a/cortex-a72/ \
-I$(KERNEL_ROOT)/hardkernel/intr/arm/armv8-a/cortex-a72/$(BOARD)
endif
KERNELPATHS += \ KERNELPATHS += \
-I$(KERNEL_ROOT)/hardkernel \ -I$(KERNEL_ROOT)/hardkernel \
-I$(KERNEL_ROOT)/hardkernel/clock/ \ -I$(KERNEL_ROOT)/hardkernel/clock/ \