mirror of
https://github.com/PiMaker/rvc.git
synced 2024-11-10 06:00:07 +00:00
add linux kernel, custom patches and update Makefile
This commit is contained in:
Stefan
parent
9c936f211c
commit
81e95a6791
70
Makefile
70
Makefile
@ -10,13 +10,22 @@ DEPS := $(OBJS:.o=.d)
|
||||
INC_DIRS := $(shell find $(SRC_DIRS) -type d)
|
||||
INC_FLAGS := $(addprefix -I,$(INC_DIRS))
|
||||
|
||||
Q=$(CURDIR)/buildroot-2021.05/output/host/bin/riscv32-buildroot-linux-gnu-
|
||||
|
||||
CFLAGS=-g
|
||||
|
||||
$(TARGET): $(OBJS)
|
||||
$(CC) $(LDFLAGS) -I./elfy/elfy.h $(OBJS) -o $@ $(LOADLIBES) $(LDLIBS) -L./elfy/target/release/ -Wl,--no-as-needed -ldl -lpthread -lelfy
|
||||
|
||||
.PHONY: clean
|
||||
clean:
|
||||
$(RM) $(TARGET) $(OBJS) $(DEPS) fw_payload.*
|
||||
$(RM) $(TARGET) $(OBJS) $(DEPS)
|
||||
|
||||
.PHONY: distclean
|
||||
distclean: clean
|
||||
$(RM) $(TARGET) $(OBJS) $(DEPS) *_payload.*
|
||||
$(MAKE) -C opensbi clean
|
||||
$(MAKE) -C linux clean
|
||||
|
||||
-include $(DEPS)
|
||||
|
||||
@ -24,28 +33,67 @@ clean:
|
||||
dts.dtb: dts.dts
|
||||
dtc -o $@ $<
|
||||
|
||||
OPENSBI_BUILD="opensbi/build/platform/generic/firmware"
|
||||
PAYLOAD="rust_payload/target/riscv32ima-unknown-none-elf/release/rust_payload.bin"
|
||||
OPENSBI_BUILD=opensbi/build/platform/generic/firmware
|
||||
PAYLOAD=rust_payload/target/riscv32ima-unknown-none-elf/release/rust_payload.bin
|
||||
LINUX_PAYLOAD=linux/arch/riscv/boot/Image
|
||||
|
||||
BUILDROOT_MARKER=buildroot-2021.05/build.marker
|
||||
$(BUILDROOT_MARKER):
|
||||
$(MAKE) -C buildroot-2021.05 make
|
||||
cd buildroot-2021.05 && cp init output/target/ && cp pi.js output/target/
|
||||
$(MAKE) -C buildroot-2021.05 make
|
||||
touch $@
|
||||
|
||||
$(PAYLOAD): $(shell find rust_payload/src -type f)
|
||||
cd rust_payload; \
|
||||
cargo +riscv32ima rustc -Zbuild-std --release --target "riscv32ima-unknown-none-elf" -- -Clink-arg=-Tlinker.ld -Clinker=riscv32-elf-ld
|
||||
riscv32-elf-objcopy -O binary \
|
||||
cargo +riscv32ima rustc -Zbuild-std --release --target "riscv32ima-unknown-none-elf" -- -Clink-arg=-Tlinker.ld -Clinker=$(Q)ld
|
||||
$(Q)objcopy -O binary \
|
||||
rust_payload/target/riscv32ima-unknown-none-elf/release/rust_payload $(PAYLOAD)
|
||||
|
||||
fw_payload.bin: fw_payload.elf
|
||||
cp $(OPENSBI_BUILD)/fw_payload.bin .
|
||||
fw_payload.elf: $(PAYLOAD)
|
||||
env CROSS_COMPILE=riscv64-elf- \
|
||||
rust_payload.bin: rust_payload.elf
|
||||
cp $(OPENSBI_BUILD)/fw_payload.bin ./rust_payload.bin
|
||||
rust_payload.elf: $(PAYLOAD) $(BUILDROOT_MARKER)
|
||||
$(MAKE) -C opensbi clean
|
||||
env CROSS_COMPILE=$(Q) \
|
||||
PLATFORM=generic \
|
||||
PLATFORM_RISCV_XLEN=32 \
|
||||
PLATFORM_RISCV_ISA=rv32ima \
|
||||
PLATFORM_RISCV_ABI=ilp32 \
|
||||
FW_PAYLOAD_PATH=../$(PAYLOAD) \
|
||||
FW_PIC=n \
|
||||
ELFFLAGS=-L/usr/lib/gcc/riscv64-elf/10.2.0/rv32im/ilp32 \
|
||||
$(MAKE) -C opensbi all
|
||||
cp $(OPENSBI_BUILD)/fw_payload.elf .
|
||||
cp $(OPENSBI_BUILD)/fw_payload.elf ./rust_payload.elf
|
||||
|
||||
.PHONY: $(LINUX_PAYLOAD)
|
||||
$(LINUX_PAYLOAD): linux $(BUILDROOT_MARKER)
|
||||
cd linux && (git am ../linux-_pi_-patches-for-rvc.patch || true)
|
||||
cd linux && \
|
||||
env CROSS_COMPILE=$(Q) \
|
||||
CFLAGS="-march=rv32ima -mabi=ilp32" \
|
||||
LDFLAGS="-march=rv32ima -mabi=ilp32" \
|
||||
ARCH=riscv \
|
||||
KCONFIG_ALLCONFIG=../linux.config \
|
||||
make allnoconfig
|
||||
cd linux && \
|
||||
env CROSS_COMPILE=$(Q) \
|
||||
CFLAGS="-march=rv32ima -mabi=ilp32" \
|
||||
LDFLAGS="-march=rv32ima -mabi=ilp32" \
|
||||
ARCH=riscv \
|
||||
intercept-build make -j$(shell nproc)
|
||||
|
||||
linux_payload.bin: linux_payload.elf
|
||||
cp $(OPENSBI_BUILD)/fw_payload.bin ./linux_payload.bin
|
||||
linux_payload.elf: $(LINUX_PAYLOAD) $(BUILDROOT_MARKER)
|
||||
$(MAKE) -C opensbi clean
|
||||
env CROSS_COMPILE=$(Q) \
|
||||
PLATFORM=generic \
|
||||
PLATFORM_RISCV_XLEN=32 \
|
||||
PLATFORM_RISCV_ISA=rv32ima \
|
||||
PLATFORM_RISCV_ABI=ilp32 \
|
||||
FW_PAYLOAD_PATH=../$(LINUX_PAYLOAD) \
|
||||
FW_PIC=n \
|
||||
$(MAKE) -C opensbi all
|
||||
cp $(OPENSBI_BUILD)/fw_payload.elf ./linux_payload.elf
|
||||
|
||||
.PHONY: run
|
||||
run: fw_payload.bin $(TARGET) dts.dtb
|
||||
|
||||
128
linux-_pi_-patches-for-rvc.patch
Normal file
128
linux-_pi_-patches-for-rvc.patch
Normal file
@ -0,0 +1,128 @@
|
||||
From fbba62aff7a727723aa75715e1d1838b484ba842 Mon Sep 17 00:00:00 2001
|
||||
From: Stefan <stefan@pimaker.at>
|
||||
Date: Sun, 1 Aug 2021 20:58:20 +0200
|
||||
Subject: [PATCH] _pi_ patches for rvc
|
||||
|
||||
* use MEMOP extension for faster memcpy (disabled atm)
|
||||
* don't poison init kernel area, we don't care about security
|
||||
* print more messages about initramfs loading, since otherwise it just
|
||||
looks like it got stuck
|
||||
|
||||
Signed-off-by: Stefan <stefan@pimaker.at>
|
||||
---
|
||||
arch/riscv/lib/memcpy.S | 13 +++++++++++++
|
||||
include/linux/mm.h | 2 +-
|
||||
init/initramfs.c | 19 +++++++++++++++++--
|
||||
3 files changed, 31 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/arch/riscv/lib/memcpy.S b/arch/riscv/lib/memcpy.S
|
||||
index 51ab716253fa..67636579413d 100644
|
||||
--- a/arch/riscv/lib/memcpy.S
|
||||
+++ b/arch/riscv/lib/memcpy.S
|
||||
@@ -41,6 +41,18 @@ WEAK(memcpy)
|
||||
beqz a4, 4f
|
||||
add a3, a1, a4
|
||||
3:
|
||||
+ #lla t0, 10f
|
||||
+ #li t2, 1025
|
||||
+ #bltu a2, t2, 11f
|
||||
+
|
||||
+ #csrw 0x0b1, a1 # src
|
||||
+ #csrw 0x0b2, t6 # dst
|
||||
+ #csrw 0x0b3, a2 # n
|
||||
+ #li t2, 0x1
|
||||
+ #csrw 0x0b0, t2 # memcpy
|
||||
+ #j 10f
|
||||
+
|
||||
+11:
|
||||
REG_L a4, 0(a1)
|
||||
REG_L a5, SZREG(a1)
|
||||
REG_L a6, 2*SZREG(a1)
|
||||
@@ -76,6 +88,7 @@ WEAK(memcpy)
|
||||
REG_S t1, 15*SZREG(t6)
|
||||
addi t6, t6, 16*SZREG
|
||||
bltu a1, a3, 3b
|
||||
+10:
|
||||
andi a2, a2, (16*SZREG)-1 /* Update count */
|
||||
|
||||
4:
|
||||
diff --git a/include/linux/mm.h b/include/linux/mm.h
|
||||
index 9afb8998e7e5..881f1c1cf7ea 100644
|
||||
--- a/include/linux/mm.h
|
||||
+++ b/include/linux/mm.h
|
||||
@@ -2420,7 +2420,7 @@ static inline unsigned long free_initmem_default(int poison)
|
||||
extern char __init_begin[], __init_end[];
|
||||
|
||||
return free_reserved_area(&__init_begin, &__init_end,
|
||||
- poison, "unused kernel");
|
||||
+ 0x1ff, "unused kernel");
|
||||
}
|
||||
|
||||
static inline unsigned long get_num_physpages(void)
|
||||
diff --git a/init/initramfs.c b/init/initramfs.c
|
||||
index af27abc59643..1124f0cf6c8f 100644
|
||||
--- a/init/initramfs.c
|
||||
+++ b/init/initramfs.c
|
||||
@@ -43,8 +43,10 @@ static ssize_t __init xwrite(struct file *file, const char *p, size_t count,
|
||||
static __initdata char *message;
|
||||
static void __init error(char *x)
|
||||
{
|
||||
- if (!message)
|
||||
+ if (!message) {
|
||||
message = x;
|
||||
+ pr_err("[_pi_] initramfs error: %s\n", x);
|
||||
+ }
|
||||
}
|
||||
|
||||
static void panic_show_mem(const char *fmt, ...)
|
||||
@@ -467,6 +469,9 @@ static char * __init unpack_to_rootfs(char *buf, unsigned long len)
|
||||
const char *compress_name;
|
||||
static __initdata char msg_buf[64];
|
||||
|
||||
+ unsigned long len_orig = len;
|
||||
+ unsigned long len_percent = 0, len_percent_tmp;
|
||||
+
|
||||
header_buf = kmalloc(110, GFP_KERNEL);
|
||||
symlink_buf = kmalloc(PATH_MAX + N_ALIGN(PATH_MAX) + 1, GFP_KERNEL);
|
||||
name_buf = kmalloc(N_ALIGN(PATH_MAX), GFP_KERNEL);
|
||||
@@ -474,11 +479,20 @@ static char * __init unpack_to_rootfs(char *buf, unsigned long len)
|
||||
if (!header_buf || !symlink_buf || !name_buf)
|
||||
panic_show_mem("can't allocate buffers");
|
||||
|
||||
+ pr_info("[_pi_] loading initramfs now, this may take a while...\n");
|
||||
+
|
||||
state = Start;
|
||||
this_header = 0;
|
||||
message = NULL;
|
||||
while (!message && len) {
|
||||
loff_t saved_offset = this_header;
|
||||
+
|
||||
+ len_percent_tmp = (len * 10) / len_orig;
|
||||
+ if (len_percent_tmp != len_percent) {
|
||||
+ len_percent = len_percent_tmp;
|
||||
+ pr_info("[_pi_] initramfs: %lu0%% done\n", 10 - len_percent);
|
||||
+ }
|
||||
+
|
||||
if (*buf == '0' && !(this_header & 3)) {
|
||||
state = Start;
|
||||
written = write_buffer(buf, len);
|
||||
@@ -494,7 +508,7 @@ static char * __init unpack_to_rootfs(char *buf, unsigned long len)
|
||||
}
|
||||
this_header = 0;
|
||||
decompress = decompress_method(buf, len, &compress_name);
|
||||
- pr_debug("Detected %s compressed data\n", compress_name);
|
||||
+ pr_info("Detected %s compressed data\n", compress_name);
|
||||
if (decompress) {
|
||||
int res = decompress(buf, len, NULL, flush_buffer, NULL,
|
||||
&my_inptr, error);
|
||||
@@ -519,6 +533,7 @@ static char * __init unpack_to_rootfs(char *buf, unsigned long len)
|
||||
kfree(name_buf);
|
||||
kfree(symlink_buf);
|
||||
kfree(header_buf);
|
||||
+ pr_info("[_pi_] unpack_to_rootfs retval: %s\n", (message && *message) ? message : "<success>");
|
||||
return message;
|
||||
}
|
||||
|
||||
--
|
||||
2.32.0
|
||||
|
||||
114
linux.config
Normal file
114
linux.config
Normal file
@ -0,0 +1,114 @@
|
||||
CONFIG_DEFAULT_HOSTNAME="rvc"
|
||||
CONFIG_LOCALVERSION="-rvc"
|
||||
|
||||
CONFIG_RD_GZIP=n
|
||||
CONFIG_RD_BZIP2=n
|
||||
CONFIG_RD_LZMA=n
|
||||
CONFIG_RD_XZ=n
|
||||
CONFIG_RD_LZO=n
|
||||
CONFIG_RD_LZ4=n
|
||||
CONFIG_RD_ZSTD=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_GZIP=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_BZIP2=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_LZMA=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_XZ=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_LZO=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_LZ4=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_ZSTD=n
|
||||
CONFIG_INITRAMFS_COMPRESSION_NONE=y
|
||||
|
||||
CONFIG_INITRAMFS_SOURCE="../buildroot-2021.05/output/images/rootfs.cpio"
|
||||
|
||||
CONFIG_BLK_DEV=y
|
||||
CONFIG_BLK_DEV_INITRD=y
|
||||
|
||||
CONFIG_DEBUG=y
|
||||
CONFIG_DEBUG_KERNEL=y
|
||||
CONFIG_DEBUG_INFO=y
|
||||
|
||||
CONFIG_32BIT=y
|
||||
CONFIG_ARCH_RV32I=y
|
||||
CONFIG_RISCV_ISA_C=n
|
||||
CONFIG_MMU=y
|
||||
CONFIG_RISCV_M_MODE=n
|
||||
CONFIG_RISCV_SBI=y
|
||||
CONFIG_SMP=n
|
||||
CONFIG_BROKEN_ON_SMP=y
|
||||
CONFIG_FPU=n
|
||||
CONFIG_NUMA=n
|
||||
CONFIG_EFI=n
|
||||
CONFIG_MULTIUSER=n
|
||||
|
||||
CONFIG_PRINTK=y
|
||||
CONFIG_PRINTK_TIME=y
|
||||
CONFIG_EARLY_PRINTK=y
|
||||
|
||||
CONFIG_RISCV_SBI_V01=y
|
||||
CONFIG_SERIAL_EARLYCON_RISCV_SBI=y
|
||||
CONFIG_HVC_RISCV_SBI=y
|
||||
|
||||
CONFIG_BINFMT_ELF=y
|
||||
CONFIG_ELFCORE=y
|
||||
CONFIG_BINFMT_SCRIPT=y
|
||||
CONFIG_BINFMT_FLAT=y
|
||||
CONFIG_BINFMT_MISC=y
|
||||
|
||||
CONFIG_TTY=y
|
||||
CONFIG_VT=y
|
||||
CONFIG_VT_CONSOLE=y
|
||||
CONFIG_VT_HW_CONSOLE_BINDING=y
|
||||
CONFIG_SERIAL_CORE=y
|
||||
CONFIG_SERIAL_CORE_CONSOLE=y
|
||||
CONFIG_SERIAL_8250=n
|
||||
CONFIG_SERIAL_8250_CONSOLE=n
|
||||
CONFIG_SERIAL_OF_PLATFORM=y
|
||||
CONFIG_SERIAL_EARLYCON=y
|
||||
CONFIG_CONSOLE_POLL=n
|
||||
CONFIG_UNIX98_PTYS=n
|
||||
CONFIG_LEGACY_PTYS=n
|
||||
|
||||
CONFIG_RISCV_TIMER=y
|
||||
CONFIG_PREEMPT_NONE=y
|
||||
|
||||
CONFIG_DTC=y
|
||||
CONFIG_OF=y
|
||||
CONFIG_OF_FLATTREE=y
|
||||
CONFIG_OF_EARLY_FLATTREE=y
|
||||
CONFIG_OF_KOBJ=y
|
||||
CONFIG_OF_ADDRESS=y
|
||||
CONFIG_OF_IRQ=y
|
||||
CONFIG_OF_RESERVED_MEM=y
|
||||
|
||||
CONFIG_RAMFS=y
|
||||
CONFIG_TMPFS=y
|
||||
CONFIG_DEVTMPFS=y
|
||||
CONFIG_DEVTMPFS_MOUNT=y
|
||||
CONFIG_PROC_FS=y
|
||||
CONFIG_SYSFS=y
|
||||
CONFIG_EXPORTFS=n
|
||||
|
||||
CONFIG_MSDOS_PARTITION=n
|
||||
CONFIG_EFI_PARTITION=n
|
||||
CONFIG_FW_LOADER=n
|
||||
CONFIG_SCSI_MOD=n
|
||||
CONFIG_BLK_DEV_BSG=n
|
||||
CONFIG_MQ_IOSCHED_KYBER=n
|
||||
CONFIG_MQ_IOSCHED_DEADLINE=n
|
||||
CONFIG_IO_WQ=n
|
||||
CONFIG_SERIAL_8250_16550A_VARIANTS=n
|
||||
CONFIG_SERIAL_8250_NR_UARTS=1
|
||||
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
|
||||
CONFIG_VGA_CONSOLE=n
|
||||
CONFIG_HID=n
|
||||
CONFIG_USB_SUPPORT=n
|
||||
CONFIG_EDAC_SUPPORT=n
|
||||
CONFIG_IOMMU_SUPPORT=n
|
||||
CONFIG_HAVE_EBPF_JIT=n
|
||||
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=n
|
||||
CONFIG_DEFAULT_SECURITY_DAC=n
|
||||
CONFIG_PCI=n
|
||||
CONFIG_USB=n
|
||||
|
||||
CONFIG_HAVE_SYSCALL_TRACEPOINTS=n
|
||||
CONFIG_TRACING_SUPPORT=n
|
||||
CONFIG_FTRACE=n
|
||||
Loading…
Reference in New Issue
Block a user