Support virt armv8.(Todo: fix clock intr)

2024-05-27 14:57:58 +08:00
parent 80f80b64f0
commit 71cf0c667c
58 changed files with 590 additions and 454 deletions
@@ -1,15 +1,23 @@
 ifeq ($(BOARD), imx6q-sabrelite)
 toolchain ?= arm-none-eabi-
+user_ldflags = -N -Ttext 0
+cflags = -march=armv7-a -std=c11 -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
 endif
 ifeq ($(BOARD), zynq7000-zc702)
 toolchain ?= arm-xilinx-eabi-
+user_ldflags = -N -Ttext 0
+cflags = -march=armv7-a -std=c11 -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
 endif
+ifeq ($(BOARD), ok1028a-c)
+toolchain ?= aarch64-none-elf-
+user_ldflags = -N -Ttext 0
+cflags = -Wall -g -std=c11 -mtune=cortex-a72 -ffreestanding -fno-common -fno-stack-protector -fno-pie -no-pie -nostdlib -static -fno-builtin -nodefaultlibs -Wno-unused
+endif
+
 cc = ${toolchain}gcc
 ld = ${toolchain}g++
 objdump = ${toolchain}objdump
-user_ldflags = -N -Ttext 0

-cflags = -march=armv7-a -std=c11 -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
 c_useropts = -O2

 INC_DIR = 	-I$(KERNEL_ROOT)/services/fs/libfs \
@@ -0,0 +1,38 @@
+ifeq ($(BOARD), imx6q-sabrelite)
+toolchain ?= arm-none-eabi-
+user_ldflags = -N -Ttext 0
+cflags = -march=armv7-a -std=c11 -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
+endif
+ifeq ($(BOARD), zynq7000-zc702)
+toolchain ?= arm-xilinx-eabi-
+user_ldflags = -N -Ttext 0
+cflags = -march=armv7-a -std=c11 -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
+endif
+ifeq ($(BOARD), ok1028a-c)
+toolchain ?= aarch64-none-elf-
+user_ldflags = -N -Ttext 0
+cflags = -Wall -g -std=c11 -mtune=cortex-a72 -ffreestanding -fno-common -fno-stack-protector -fno-pie -no-pie -nostdlib -static -fno-builtin -nodefaultlibs -Wno-unused
+endif
+
+cc = ${toolchain}gcc
+ld = ${toolchain}g++
+objdump = ${toolchain}objdump
+
+c_useropts = -O2
+
+INC_DIR = 	-I$(KERNEL_ROOT)/services/fs/libfs \
+			-I$(KERNEL_ROOT)/services/lib/ipc \
+		  	-I$(KERNEL_ROOT)/services/lib/memory \
+			-I$(KERNEL_ROOT)/services/lib/serial \
+			-I$(KERNEL_ROOT)/services/lib/usyscall \
+			-I$(KERNEL_ROOT)/services/boards/$(BOARD) \
+			-I$(KERNEL_ROOT)/services/app
+
+board: libserial.o arch_usyscall.o stub.o
+	@mv $^ $(KERNEL_ROOT)/services/app
+
+%.o: %.c
+	@echo "cc $^"
+	@${cc} ${cflags} ${c_useropts} ${INC_DIR} -o $@ -c $^
+
+include $(KERNEL_ROOT)/compiler.mk
@@ -0,0 +1,33 @@
+/*
+ * 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.
+ */
+#include "usyscall.h"
+
+int syscall(int sys_num, intptr_t a1, intptr_t a2, intptr_t a3, intptr_t a4)
+{
+    int ret = -1;
+
+    __asm__ volatile(
+        "mov x0, %1;\
+        mov x1, %2;\
+        mov x2, %3;\
+        mov x3, %4;\
+        mov x4, %5;\
+        svc #0;\
+        dsb ish;\
+        isb;\
+        mov %0, x0"
+        : "=r"(ret)
+        : "r"(sys_num), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+        : "memory", "r0", "r1", "r2", "r3", "r4");
+
+    return ret;
+}
@@ -0,0 +1,113 @@
+/*
+ * 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.
+ */
+
+/// this file is only used for debug
+#include "libserial.h"
+#include "usyscall.h"
+
+#define USER_UART_BASE 0x6FFFF000
+
+#define UART0_BASE (0x09000000ULL)
+#define UART0_REG(reg) ((volatile uint32_t*)(USER_UART_BASE + reg))
+
+// the UART control registers.
+// pl011
+#define DR 0x00
+#define FR 0x18
+#define FR_RXFE (1 << 4) // recieve fifo empty
+#define FR_TXFF (1 << 5) // transmit fifo full
+#define FR_RXFF (1 << 6) // recieve fifo full
+#define FR_TXFE (1 << 7) // transmit fifo empty
+#define IBRD 0x24
+#define FBRD 0x28
+#define LCRH 0x2c
+#define LCRH_FEN (1 << 4)
+#define LCRH_WLEN_8BIT (3 << 5)
+#define CR 0x30
+#define IMSC 0x38
+#define INT_RX_ENABLE (1 << 4)
+#define INT_TX_ENABLE (1 << 5)
+#define ICR 0x44
+
+#define UART_READ_REG(reg) (*(UART0_REG(reg)))
+#define UART_WRITE_REG(reg, v) (*(UART0_REG(reg)) = (v))
+
+#define UART_TX_BUF_SIZE 32
+static char uart_tx_buf[UART_TX_BUF_SIZE];
+uint64_t uart_tx_w; // write next to uart_tx_buf[uart_tx_w % UART_TX_BUF_SIZE]
+uint64_t uart_tx_r; // read next from uart_tx_buf[uart_tx_r % UART_TX_BUF_SIZE]
+
+bool init_uart_mmio()
+{
+    static int mapped = 0;
+    if (mapped == 0) {
+        if (-1 == mmap(USER_UART_BASE, UART0_BASE, 4096, true)) {
+            return false;
+        }
+        mapped = 1;
+    }
+    return true;
+}
+
+// if the UART is idle, and a character is waiting
+// in the transmit buffer, send it.
+// caller must hold uart_tx_lock.
+// called from both the top- and bottom-half.
+void uartstart()
+{
+    while (1) {
+        if (uart_tx_w == uart_tx_r) {
+            // transmit buffer is empty.
+            return;
+        }
+
+        if (UART_READ_REG(FR) & FR_TXFF) {
+            // the UART transmit holding register is full,
+            // so we cannot give it another byte.
+            // it will interrupt when it's ready for a new byte.
+            return;
+        }
+
+        int c = uart_tx_buf[uart_tx_r % UART_TX_BUF_SIZE];
+        uart_tx_r += 1;
+
+        // maybe uartputc() is waiting for space in the buffer.
+
+        UART_WRITE_REG(DR, c);
+    }
+}
+
+// add a character to the output buffer and tell the
+// UART to start sending if it isn't already.
+// blocks if the output buffer is full.
+// because it may block, it can't be called
+// from interrupts; it's only suitable for use
+// by write().
+void putc(char c)
+{
+    while (uart_tx_w == uart_tx_r + UART_TX_BUF_SIZE)
+        ;
+    uart_tx_buf[uart_tx_w % UART_TX_BUF_SIZE] = c;
+    uart_tx_w += 1;
+    uartstart();
+    return;
+}
+
+// read one input character from the UART.
+// return -1 if none is waiting.
+char getc(void)
+{
+    if (UART_READ_REG(FR) & FR_RXFE)
+        return 0xFF;
+    else
+        return UART_READ_REG(DR);
+}
@@ -0,0 +1,91 @@
+/*
+ * 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.
+ */
+
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+// _exit: 用于退出程序
+void _exit(int status)
+{
+    while (1) { }
+}
+
+// _sbrk: 用于增加程序的数据空间
+void* _sbrk(ptrdiff_t incr)
+{
+    extern char end; /* Defined by the linker */
+    static char* heap_end;
+    char* prev_heap_end;
+
+    if (heap_end == 0) {
+        heap_end = &end;
+    }
+    prev_heap_end = heap_end;
+
+    // 在这里，你应该添加一些检查来确保堆不会与栈或其他内存区域冲突
+    // 例如，检查 incr 是否会导致堆超出预定的内存区域
+
+    heap_end += incr;
+    return (void*)prev_heap_end;
+}
+
+// _write: 用于将数据写入文件描述符
+ssize_t _write(int file, const void* ptr, size_t len)
+{
+    // 在这里，你需要实现将数据写入文件描述符的逻辑
+    // 如果你的系统不支持文件系统，你可以将数据发送到串口或其他输出
+
+    return len; // 假设所有数据都被写入
+}
+
+// _close: 用于关闭文件描述符
+int _close(int file)
+{
+    return -1; // 表示失败，因为没有实际关闭文件的功能
+}
+
+// _fstat: 用于获取文件状态
+int _fstat(int file, struct stat* st)
+{
+    return 0; // 表示成功
+}
+
+// _isatty: 检查文件描述符是否指向TTY设备
+int _isatty(int file)
+{
+    return 1; // 表示是TTY设备
+}
+
+// _lseek: 用于重新定位文件读/写的位置
+off_t _lseek(int file, off_t offset, int whence)
+{
+    return -1; // 表示失败，因为不支持文件定位
+}
+
+// _read: 用于从文件描述符读取数据
+ssize_t _read(int file, void* ptr, size_t len)
+{
+    return 0; // 表示没有数据被读取
+}
+
+// _kill: 发送信号给进程
+int _kill(int pid, int sig)
+{
+    return -1; // 表示失败，因为不支持信号
+}
+
+// _getpid: 获取进程ID
+int _getpid()
+{
+    return 1; // 返回假设的进程ID
+}
@@ -9,6 +9,12 @@ user_ldflags = --start-group,-lgcc,-lc,--end-group
 cflags = -std=c11 -march=armv7-a -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie
 #cflags = -Wall -g -std=c11 
 endif
+ifeq ($(BOARD), ok1028a-c)
+toolchain ?= aarch64-none-elf-
+user_ldflags = -N -Ttext 0
+cflags = -Wall -g -std=c11 -mtune=cortex-a72 -ffreestanding -fno-common -fno-stack-protector -fno-pie -no-pie -nostdlib -static -fno-builtin -nodefaultlibs -Wno-unused
+endif
+
 cc = ${toolchain}gcc
 ld = ${toolchain}g++
 objdump = ${toolchain}objdump