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Add UCB RISCV support for architecture, soc, and emulation mainboard..

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Works in the RISCV version of QEMU.

Note that the lzmadecode is so unclean that it needs a lot of work.
A cleanup is in progress.

We decided in Prague to do this as one thing, because it forms a nice case study
of the bare minimum you need to add to get a new architecture going in qemu.

Change-Id: If5af15c3a70733d219973e0d032746f8ab027e4d
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/7584
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
This commit is contained in:
Ronald G. Minnich
2014-11-26 19:25:47 +00:00
parent 796fe068d3
commit e0e784a456
45 changed files with 2379 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Makefile.inc
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@ -68,7 +68,7 @@ PHONY+= clean-abuild coreboot lint lint-stable build-dirs
subdirs-y := src/lib src/console src/device src/ec src/southbridge src/soc subdirs-y := src/lib src/console src/device src/ec src/southbridge src/soc
subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode subdirs-y += src/northbridge src/superio src/drivers src/cpu src/vendorcode
subdirs-y += util/cbfstool util/sconfig util/nvramtool subdirs-y += util/cbfstool util/sconfig util/nvramtool
subdirs-y += src/arch/arm src/arch/arm64 src/arch/x86 subdirs-y += src/arch/arm src/arch/arm64 src/arch/x86 src/arch/riscv
subdirs-y += src/mainboard/$(MAINBOARDDIR) subdirs-y += src/mainboard/$(MAINBOARDDIR)
subdirs-y += site-local subdirs-y += site-local
@ -608,6 +608,9 @@ endif
ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM64),y) ifeq ($(CONFIG_ARCH_ROMSTAGE_ARM64),y)
ROMSTAGE_ELF := romstage.elf ROMSTAGE_ELF := romstage.elf
endif endif
ifeq ($(CONFIG_ARCH_ROMSTAGE_RISCV),y)
ROMSTAGE_ELF := romstage.elf
endif
ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32),y) ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32),y)
ROMSTAGE_ELF := romstage_xip.elf ROMSTAGE_ELF := romstage_xip.elf
endif endif

5
src/Kconfig
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@ -271,9 +271,14 @@ config ARCH_ARM64
bool bool
default n default n
config ARCH_RISCV
bool
default n
source src/arch/x86/Kconfig source src/arch/x86/Kconfig
source src/arch/arm/Kconfig source src/arch/arm/Kconfig
source src/arch/arm64/Kconfig source src/arch/arm64/Kconfig
source src/arch/riscv/Kconfig
source src/vendorcode/Kconfig source src/vendorcode/Kconfig

26
src/arch/riscv/Kconfig Normal file
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@ -0,0 +1,26 @@
config ARCH_BOOTBLOCK_RISCV
bool
default n
select ARCH_RISCV
config ARCH_ROMSTAGE_RISCV
bool
default n
config ARCH_RAMSTAGE_RISCV
bool
default n
# If a custom bootblock is necessary, this option should be "select"-ed by
# the thing that needs it, probably the CPU.
config RISCV_BOOTBLOCK_CUSTOM
bool
default n
config CPU_HAS_BOOTBLOCK_INIT
bool
default n
config MAINBOARD_HAS_BOOTBLOCK_INIT
bool
default n

113
src/arch/riscv/Makefile.inc Normal file
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@ -0,0 +1,113 @@
################################################################################
##
## This file is part of the coreboot project.
##
## Copyright (C) 2014 The ChromiumOS Authors
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; version 2 of the License.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
##
################################################################################
riscv_flags = -I$(src)/arch/riscv/
riscv_asm_flags =
################################################################################
## bootblock
################################################################################
ifeq ($(CONFIG_ARCH_BOOTBLOCK_RISCV),y)
bootblock_lds = $(src)/arch/riscv/bootblock.ld
bootblock-y = bootblock.S stages.c
bootblock-y += rom_media.c
bootblock-y += \
$(top)/src/lib/memchr.c \
$(top)/src/lib/memcmp.c \
$(top)/src/lib/memcpy.c \
$(top)/src/lib/memmove.c \
$(top)/src/lib/memset.c
$(objcbfs)/bootblock.debug: $(src)/arch/riscv/bootblock.ld $(obj)/ldoptions $$(bootblock-objs)
@printf " LINK $(subst $(obj)/,,$(@))\n"
$(LD_bootblock) -m elf64-littleriscv --gc-sections -static -o $@ -L$(obj) $< -T $(src)/arch/riscv/bootblock.ld
endif
################################################################################
## romstage
################################################################################
ifeq ($(CONFIG_ARCH_ROMSTAGE_RISCV),y)
romstage-y += stages.c
romstage-y += rom_media.c
romstage-y += \
$(top)/src/lib/memchr.c \
$(top)/src/lib/memcmp.c \
$(top)/src/lib/memcpy.c \
$(top)/src/lib/memmove.c \
$(top)/src/lib/memset.c
romstage-y += cbmem.c
romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
# Build the romstage
$(objcbfs)/romstage.debug: $$(romstage-objs) $(src)/arch/riscv/romstage.ld $(obj)/ldoptions
@printf " LINK $(subst $(obj)/,,$(@))\n"
$(CC_romstage) $(CFLAGS_romstage) -nostdlib -Wl,--gc-sections -static -o $@ -L$(obj) -T $(src)/arch/riscv/romstage.ld -Wl,--start-group $(romstage-objs) -Wl,--end-group
romstage-c-ccopts += $(riscv_flags)
romstage-S-ccopts += $(riscv_asm_flags)
CBFSTOOL_PRE1_OPTS = -v -m riscv -b $(CONFIG_BOOTBLOCK_ROM_OFFSET) -H $(CONFIG_CBFS_HEADER_ROM_OFFSET) -o $(CONFIG_CBFS_ROM_OFFSET)
CBFSTOOL_PRE_OPTS = -v
endif
################################################################################
## ramstage
################################################################################
ifeq ($(CONFIG_ARCH_RAMSTAGE_RISCV),y)
ramstage-y =
ramstage-y += rom_media.c
ramstage-y += stages.c
ramstage-y += misc.c
ramstage-y += boot.c
ramstage-y += cbmem.c
ramstage-y += tables.c
ramstage-y += \
$(top)/src/lib/memchr.c \
$(top)/src/lib/memcmp.c \
$(top)/src/lib/memcpy.c \
$(top)/src/lib/memmove.c \
$(top)/src/lib/memset.c
$(eval $(call create_class_compiler,rmodules,riscv))
ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/mainboard.c
# Build the ramstage
$(objcbfs)/ramstage.debug: $$(ramstage-objs) $(src)/arch/riscv/ramstage.ld $(obj)/ldoptions
@printf " CC $(subst $(obj)/,,$(@))\n"
$(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -Wl,--gc-sections -static -o $@ -L$(obj) -Wl,--start-group $(ramstage-objs) -Wl,--end-group -T $(src)/arch/riscv/ramstage.ld
ramstage-c-ccopts += $(riscv_flags)
ramstage-S-ccopts += $(riscv_asm_flags)
endif

30
src/arch/riscv/boot.c Normal file
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@ -0,0 +1,30 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2013 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <arch/stages.h>
#include <payload_loader.h>
#include <console/uart.h>
void arch_payload_run(const struct payload *payload)
{
printk(BIOS_SPEW, "entry = %p\n", payload->entry);
// uart_rx_byte(0);
stage_exit(payload->entry);
}

104
src/arch/riscv/bootblock.S Normal file
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@ -0,0 +1,104 @@
/*
* Early initialization code for aarch64 (a.k.a. armv8)
*
* Copyright 2013Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
// See LICENSE for license details. relating to the _start code in this file.
#include <arch/encoding.h>
.section ".start", "ax", %progbits
// Maybe there's a better way.
.space 0x2000
.globl _start
_start:
// pending figuring out this f-ing toolchain. Hardcode what we know works.
la sp, 0x4ef0 // .stacktop
// la a0, trap_entry
// la gp, _gp
// csrw evec, a0
# clear any pending interrupts
csrwi clear_ipi, 0
li a0, SR_S | SR_PS | SR_EI | SR_S64 | SR_U64
or a1, a0, SR_EF | SR_EA
csrw status, a1
csrr a1, status
csrw status, a0
// and a2, a1, SR_EF
// sw a2, have_fp, t0
// and a2, a1, SR_EA
// sw a2, have_accelerator, t0
call main
.=0x4000
.stack:
.align 8
.space 0xf00
.stacktop:
.quad 0
.align 3
.stack_size:
.quad 0xf00
.globl _cbfs_master_header
_cbfs_master_header:
.balignl 16,0xdeadbeef
.align 8
// this assembler SUCKS
.long 0x4F524243
.long 0xdeadbeef
.long 0xdeadbeef
.long 0xdeadbeef
.long 0xdeadbeef
.long 0xdeadbeef
.long 0xdeadbeef
/* The CBFS master header is inserted by cbfstool at the first
* aligned offset after the above anchor string is found.
* Hence, we leave some space for it.
* Assumes 64-byte alignment.
*/
.space 128
reset:
init_stack_loop:
.word CONFIG_STACK_SIZE
.section ".id", "a", %progbits
.section ".id", "a", @progbits
.globl __id_start
// fix this bs later. What's wrong with the riscv gcc?
__id_start:
ver:
.asciz "1" //COREBOOT_VERSION
vendor:
.asciz "ucb" //CONFIG_MAINBOARD_VENDOR
part:
.asciz "1" //CONFIG_MAINBOARD_PART_NUMBER
.long __id_end + CONFIG_ID_SECTION_OFFSET - ver /* Reverse offset to the vendor id */
.long __id_end + CONFIG_ID_SECTION_OFFSET - vendor /* Reverse offset to the vendor id */
.long __id_end + CONFIG_ID_SECTION_OFFSET - part /* Reverse offset to the part number */
.long CONFIG_ROM_SIZE /* Size of this romimage */
.globl __id_end
__id_end:
.previous

58
src/arch/riscv/bootblock.ld Normal file
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@ -0,0 +1,58 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2006 Advanced Micro Devices, Inc.
* Copyright (C) 2008-2010 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* We use ELF as output format. So that we can debug the code in some form. */
OUTPUT_FORMAT("elf64-littleriscv", "elf64-littleriscv", "elf64-littleriscv")
OUTPUT_ARCH(riscv)
INCLUDE ldoptions
PHDRS
{
to_load PT_LOAD;
}
ENTRY(_start)
TARGET(binary)
SECTIONS
{
. = CONFIG_BOOTBLOCK_BASE;
.bootblock . : {
*(.start);
KEEP(*(.id));
*(.text);
*(.text.*);
*(.rodata);
*(.rodata.*);
*(.data);
*(.data.*);
*(.bss);
*(.bss.*);
*(.sbss);
*(.sbss.*);
} : to_load = 0xff
/DISCARD/ : {
*(.comment)
*(.note)
*(.comment.*)
*(.note.*)
}
}

73
src/arch/riscv/bootblock_simple.c Normal file
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@ -0,0 +1,73 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include <bootblock_common.h>
#include <arch/cache.h>
#include <arch/hlt.h>
#include <arch/stages.h>
#include <arch/exception.h>
#include <cbfs.h>
#include <console/console.h>
static int boot_cpu(void)
{
/*
* FIXME: This is a stub for now. All non-boot CPUs should be
* waiting for an interrupt. We could move the chunk of assembly
* which puts them to sleep in here...
*/
return 1;
}
void main(void)
{
const char *stage_name = CONFIG_CBFS_PREFIX"/romstage";
void *entry = NULL;
/* Globally disable MMU, caches, and branch prediction (these should
* be disabled by default on reset) */
dcache_mmu_disable();
/*
* Re-enable icache and branch prediction. MMU and dcache will be
* set up later.
*
* Note: If booting from USB, we need to disable branch prediction
* before copying from USB into RAM (FIXME: why?)
*/
if (boot_cpu()) {
//bootblock_cpu_init();
//bootblock_mainboard_init();
}
#ifdef CONFIG_BOOTBLOCK_CONSOLE
console_init();
exception_init();
#endif
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name);
printk(BIOS_SPEW, "stage_name %s, entry %p\n", stage_name, entry);
if (entry) stage_exit(entry);
hlt();
}

6
src/arch/riscv/id.lds Normal file
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@ -0,0 +1,6 @@
SECTIONS {
. = (0xffffffff - CONFIG_ID_SECTION_OFFSET) - (__id_end - __id_start) + 1;
.id (.): {
*(.id)
}
}

75
src/arch/riscv/include/arch/atomic.h Normal file
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@ -0,0 +1,75 @@
// See LICENSE for license details.
#ifndef _RISCV_ATOMIC_H
#define _RISCV_ATOMIC_H
#include <arch/encoding.h>
typedef struct { volatile long val; } atomic_t;
typedef struct { atomic_t lock; } spinlock_t;
#define SPINLOCK_INIT {{0}}
#define mb() __sync_synchronize()
static inline void atomic_set(atomic_t* a, long val)
{
a->val = val;
}
static inline long atomic_read(atomic_t* a)
{
return a->val;
}
static inline long atomic_add(atomic_t* a, long inc)
{
long ret = atomic_read(a);
atomic_set(a, ret + inc);
return ret;
}
static inline long atomic_swap(atomic_t* a, long val)
{
long ret = atomic_read(a);
atomic_set(a, val);
return ret;
}
static inline long atomic_cas(atomic_t* a, long compare, long swap)
{
long ret = atomic_read(a);
if (ret == compare)
atomic_set(a, swap);
return ret;
}
static inline void spinlock_lock(spinlock_t* lock)
{
do
{
while (atomic_read(&lock->lock))
;
} while (atomic_swap(&lock->lock, -1));
mb();
}
static inline void spinlock_unlock(spinlock_t* lock)
{
mb();
atomic_set(&lock->lock,0);
}
static inline long spinlock_lock_irqsave(spinlock_t* lock)
{
long flags = clear_csr(status, SR_EI);
spinlock_lock(lock);
return flags;
}
static inline void spinlock_unlock_irqrestore(spinlock_t* lock, long flags)
{
spinlock_unlock(lock);
set_csr(status, flags & SR_EI);
}
#endif

27
src/arch/riscv/include/arch/byteorder.h Normal file
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@ -0,0 +1,27 @@
#ifndef _BYTEORDER_H
#define _BYTEORDER_H
#define __LITTLE_ENDIAN 1234
#include <stdint.h>
#include <swab.h>
#define cpu_to_le64(x) ((uint64_t)(x))
#define le64_to_cpu(x) ((uint64_t)(x))
#define cpu_to_le32(x) ((uint32_t)(x))
#define le32_to_cpu(x) ((uint32_t)(x))
#define cpu_to_le16(x) ((uint16_t)(x))
#define le16_to_cpu(x) ((uint16_t)(x))
#define cpu_to_be64(x) swab64(x)
#define be64_to_cpu(x) swab64(x)
#define cpu_to_be32(x) swab32((x))
#define be32_to_cpu(x) swab32((x))
#define cpu_to_be16(x) swab16((x))
#define be16_to_cpu(x) swab16((x))
#define ntohll(x) be64_to_cpu(x)
#define htonll(x) cpu_to_be64(x)
#define ntohl(x) be32_to_cpu(x)
#define htonl(x) cpu_to_be32(x)
#endif /* _BYTEORDER_H */

53
src/arch/riscv/include/arch/cpu.h Normal file
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@ -0,0 +1,53 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2012 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#ifndef __ARCH_CPU_H__
#define __ARCH_CPU_H__
#define asmlinkage
#if !defined(__PRE_RAM__)
#include <device/device.h>
struct cpu_driver {
struct device_operations *ops;
struct cpu_device_id *id_table;
};
struct thread;
struct cpu_info {
device_t cpu;
unsigned long index;
#if CONFIG_COOP_MULTITASKING
struct thread *thread;
#endif
};
struct cpuinfo_riscv {
uint8_t riscv; /* CPU family */
uint8_t riscv_vendor; /* CPU vendor */
uint8_t riscv_model;
};
#endif
struct cpu_info *cpu_info(void);
#endif /* __ARCH_CPU_H__ */

35
src/arch/riscv/include/arch/early_variables.h Normal file
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@ -0,0 +1,35 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*/
#ifndef ARCH_EARLY_VARIABLES_H
#define ARCH_EARLY_VARIABLES_H
#if defined(CONFIG_CAR_MIGRATION) && CONFIG_CAR_MIGRATION
#error "This is RISCV, silly... we don't have CAR here."
#endif
#define CAR_GLOBAL
#define CAR_MIGRATE(migrate_fn_)
static inline void *car_get_var_ptr(void *var) { return var; }
#define car_get_var(var) (var)
#define car_set_var(var, val) do { (var) = (val); } while (0)
static inline void car_migrate_variables(void) { }
#endif

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src/arch/riscv/include/arch/encoding.h Normal file
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@ -0,0 +1,727 @@
// See LICENSE for license details.
#ifndef RISCV_CSR_ENCODING_H
#define RISCV_CSR_ENCODING_H
#define SR_S 0x00000001
#define SR_PS 0x00000002
#define SR_EI 0x00000004
#define SR_PEI 0x00000008
#define SR_EF 0x00000010
#define SR_U64 0x00000020
#define SR_S64 0x00000040
#define SR_VM 0x00000080
#define SR_EA 0x00000100
#define SR_IM 0x00FF0000
#define SR_IP 0xFF000000
#define SR_ZERO ~(SR_S|SR_PS|SR_EI|SR_PEI|SR_EF|SR_U64|SR_S64|SR_VM|SR_EA|SR_IM|SR_IP)
#define SR_IM_SHIFT 16
#define SR_IP_SHIFT 24
#define IRQ_COP 2
#define IRQ_IPI 5
#define IRQ_HOST 6
#define IRQ_TIMER 7
#define IMPL_SPIKE 1
#define IMPL_ROCKET 2
// page table entry (PTE) fields
#define PTE_V 0x001 // Entry is a page Table descriptor
#define PTE_T 0x002 // Entry is a page Table, not a terminal node
#define PTE_G 0x004 // Global
#define PTE_UR 0x008 // User Write permission
#define PTE_UW 0x010 // User Read permission
#define PTE_UX 0x020 // User eXecute permission
#define PTE_SR 0x040 // Supervisor Read permission
#define PTE_SW 0x080 // Supervisor Write permission
#define PTE_SX 0x100 // Supervisor eXecute permission
#define PTE_PERM (PTE_SR | PTE_SW | PTE_SX | PTE_UR | PTE_UW | PTE_UX)
#ifdef __riscv
#ifdef __riscv64
# define RISCV_PGLEVELS 3
# define RISCV_PGSHIFT 13
#else
# define RISCV_PGLEVELS 2
# define RISCV_PGSHIFT 12
#endif
#define RISCV_PGLEVEL_BITS 10
#define RISCV_PGSIZE (1 << RISCV_PGSHIFT)
#ifndef __ASSEMBLER__
#define read_csr(reg) ({ long __tmp; \
asm volatile ("csrr %0, " #reg : "=r"(__tmp)); \
__tmp; })
#define write_csr(reg, val) \
asm volatile ("csrw " #reg ", %0" :: "r"(val))
#define swap_csr(reg, val) ({ long __tmp; \
asm volatile ("csrrw %0, " #reg ", %1" : "=r"(__tmp) : "r"(val)); \
__tmp; })
#define set_csr(reg, bit) ({ long __tmp; \
if (__builtin_constant_p(bit) && (bit) < 32) \
asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
else \
asm volatile ("csrrs %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
__tmp; })
#define clear_csr(reg, bit) ({ long __tmp; \
if (__builtin_constant_p(bit) && (bit) < 32) \
asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "i"(bit)); \
else \
asm volatile ("csrrc %0, " #reg ", %1" : "=r"(__tmp) : "r"(bit)); \
__tmp; })
#define rdtime() ({ unsigned long __tmp; \
asm volatile ("rdtime %0" : "=r"(__tmp)); \
__tmp; })
#define rdcycle() ({ unsigned long __tmp; \
asm volatile ("rdcycle %0" : "=r"(__tmp)); \
__tmp; })
#define rdinstret() ({ unsigned long __tmp; \
asm volatile ("rdinstret %0" : "=r"(__tmp)); \
__tmp; })
#endif
#endif
#endif
/* Automatically generated by parse-opcodes */
#ifndef RISCV_ENCODING_H
#define RISCV_ENCODING_H
#define MATCH_FMV_S_X 0xf0000053
#define MASK_FMV_S_X 0xfff0707f
#define MATCH_AMOXOR_W 0x2000202f
#define MASK_AMOXOR_W 0xf800707f
#define MATCH_REMUW 0x200703b
#define MASK_REMUW 0xfe00707f
#define MATCH_FMIN_D 0x2a000053
#define MASK_FMIN_D 0xfe00707f
#define MATCH_AMOMAX_D 0xa000302f
#define MASK_AMOMAX_D 0xf800707f
#define MATCH_BLTU 0x6063
#define MASK_BLTU 0x707f
#define MATCH_FSGNJN_D 0x22001053
#define MASK_FSGNJN_D 0xfe00707f
#define MATCH_FMIN_S 0x28000053
#define MASK_FMIN_S 0xfe00707f
#define MATCH_CSRRW 0x1073
#define MASK_CSRRW 0x707f
#define MATCH_SLLIW 0x101b
#define MASK_SLLIW 0xfe00707f
#define MATCH_LB 0x3
#define MASK_LB 0x707f
#define MATCH_FMAX_S 0x28001053
#define MASK_FMAX_S 0xfe00707f
#define MATCH_LH 0x1003
#define MASK_LH 0x707f
#define MATCH_FCVT_D_W 0xd2000053
#define MASK_FCVT_D_W 0xfff0007f
#define MATCH_LW 0x2003
#define MASK_LW 0x707f
#define MATCH_ADD 0x33
#define MASK_ADD 0xfe00707f
#define MATCH_CSRRC 0x3073
#define MASK_CSRRC 0x707f
#define MATCH_FMAX_D 0x2a001053
#define MASK_FMAX_D 0xfe00707f
#define MATCH_BNE 0x1063
#define MASK_BNE 0x707f
#define MATCH_FCVT_S_D 0x40100053
#define MASK_FCVT_S_D 0xfff0007f
#define MATCH_BGEU 0x7063
#define MASK_BGEU 0x707f
#define MATCH_FADD_D 0x2000053
#define MASK_FADD_D 0xfe00007f
#define MATCH_SLTIU 0x3013
#define MASK_SLTIU 0x707f
#define MATCH_FADD_S 0x53
#define MASK_FADD_S 0xfe00007f
#define MATCH_FCLASS_D 0xe2001053
#define MASK_FCLASS_D 0xfff0707f
#define MATCH_FCVT_S_W 0xd0000053
#define MASK_FCVT_S_W 0xfff0007f
#define MATCH_MUL 0x2000033
#define MASK_MUL 0xfe00707f
#define MATCH_AMOMINU_D 0xc000302f
#define MASK_AMOMINU_D 0xf800707f
#define MATCH_FCVT_S_LU 0xd0300053
#define MASK_FCVT_S_LU 0xfff0007f
#define MATCH_SRLI 0x5013
#define MASK_SRLI 0xfc00707f
#define MATCH_AMOMINU_W 0xc000202f
#define MASK_AMOMINU_W 0xf800707f
#define MATCH_DIVUW 0x200503b
#define MASK_DIVUW 0xfe00707f
#define MATCH_MULW 0x200003b
#define MASK_MULW 0xfe00707f
#define MATCH_SRLW 0x503b
#define MASK_SRLW 0xfe00707f
#define MATCH_DIV 0x2004033
#define MASK_DIV 0xfe00707f
#define MATCH_FDIV_D 0x1a000053
#define MASK_FDIV_D 0xfe00007f
#define MATCH_FENCE 0xf
#define MASK_FENCE 0x707f
#define MATCH_FNMSUB_S 0x4b
#define MASK_FNMSUB_S 0x600007f
#define MATCH_FCVT_L_S 0xc0200053
#define MASK_FCVT_L_S 0xfff0007f
#define MATCH_SBREAK 0x100073
#define MASK_SBREAK 0xffffffff
#define MATCH_FLE_S 0xa0000053
#define MASK_FLE_S 0xfe00707f
#define MATCH_FDIV_S 0x18000053
#define MASK_FDIV_S 0xfe00007f
#define MATCH_FLE_D 0xa2000053
#define MASK_FLE_D 0xfe00707f
#define MATCH_FENCE_I 0x100f
#define MASK_FENCE_I 0x707f
#define MATCH_FNMSUB_D 0x200004b
#define MASK_FNMSUB_D 0x600007f
#define MATCH_ADDW 0x3b
#define MASK_ADDW 0xfe00707f
#define MATCH_SLL 0x1033
#define MASK_SLL 0xfe00707f
#define MATCH_XOR 0x4033
#define MASK_XOR 0xfe00707f
#define MATCH_SUB 0x40000033
#define MASK_SUB 0xfe00707f
#define MATCH_BLT 0x4063
#define MASK_BLT 0x707f
#define MATCH_SCALL 0x73
#define MASK_SCALL 0xffffffff
#define MATCH_FCLASS_S 0xe0001053
#define MASK_FCLASS_S 0xfff0707f
#define MATCH_SC_W 0x1800202f
#define MASK_SC_W 0xf800707f
#define MATCH_REM 0x2006033
#define MASK_REM 0xfe00707f
#define MATCH_SRLIW 0x501b
#define MASK_SRLIW 0xfe00707f
#define MATCH_LUI 0x37
#define MASK_LUI 0x7f
#define MATCH_CSRRCI 0x7073
#define MASK_CSRRCI 0x707f
#define MATCH_ADDI 0x13
#define MASK_ADDI 0x707f
#define MATCH_MULH 0x2001033
#define MASK_MULH 0xfe00707f
#define MATCH_FMUL_S 0x10000053
#define MASK_FMUL_S 0xfe00007f
#define MATCH_CSRRSI 0x6073
#define MASK_CSRRSI 0x707f
#define MATCH_SRAI 0x40005013
#define MASK_SRAI 0xfc00707f
#define MATCH_AMOAND_D 0x6000302f
#define MASK_AMOAND_D 0xf800707f
#define MATCH_FLT_D 0xa2001053
#define MASK_FLT_D 0xfe00707f
#define MATCH_SRAW 0x4000503b
#define MASK_SRAW 0xfe00707f
#define MATCH_FMUL_D 0x12000053
#define MASK_FMUL_D 0xfe00007f
#define MATCH_LD 0x3003
#define MASK_LD 0x707f
#define MATCH_ORI 0x6013
#define MASK_ORI 0x707f
#define MATCH_CSRRS 0x2073
#define MASK_CSRRS 0x707f
#define MATCH_FLT_S 0xa0001053
#define MASK_FLT_S 0xfe00707f
#define MATCH_ADDIW 0x1b
#define MASK_ADDIW 0x707f
#define MATCH_AMOAND_W 0x6000202f
#define MASK_AMOAND_W 0xf800707f
#define MATCH_FEQ_S 0xa0002053
#define MASK_FEQ_S 0xfe00707f
#define MATCH_FSGNJX_D 0x22002053
#define MASK_FSGNJX_D 0xfe00707f
#define MATCH_SRA 0x40005033
#define MASK_SRA 0xfe00707f
#define MATCH_BGE 0x5063
#define MASK_BGE 0x707f
#define MATCH_SRAIW 0x4000501b
#define MASK_SRAIW 0xfe00707f
#define MATCH_SRL 0x5033
#define MASK_SRL 0xfe00707f
#define MATCH_FSUB_D 0xa000053
#define MASK_FSUB_D 0xfe00007f
#define MATCH_FSGNJX_S 0x20002053
#define MASK_FSGNJX_S 0xfe00707f
#define MATCH_FEQ_D 0xa2002053
#define MASK_FEQ_D 0xfe00707f
#define MATCH_FCVT_D_WU 0xd2100053
#define MASK_FCVT_D_WU 0xfff0007f
#define MATCH_OR 0x6033
#define MASK_OR 0xfe00707f
#define MATCH_FCVT_WU_D 0xc2100053
#define MASK_FCVT_WU_D 0xfff0007f
#define MATCH_SUBW 0x4000003b
#define MASK_SUBW 0xfe00707f
#define MATCH_FCVT_D_L 0xd2200053
#define MASK_FCVT_D_L 0xfff0007f
#define MATCH_AMOMAXU_D 0xe000302f
#define MASK_AMOMAXU_D 0xf800707f
#define MATCH_XORI 0x4013
#define MASK_XORI 0x707f
#define MATCH_AMOXOR_D 0x2000302f
#define MASK_AMOXOR_D 0xf800707f
#define MATCH_AMOMAXU_W 0xe000202f
#define MASK_AMOMAXU_W 0xf800707f
#define MATCH_FCVT_WU_S 0xc0100053
#define MASK_FCVT_WU_S 0xfff0007f
#define MATCH_ANDI 0x7013
#define MASK_ANDI 0x707f
#define MATCH_FMV_X_S 0xe0000053
#define MASK_FMV_X_S 0xfff0707f
#define MATCH_SRET 0x80000073
#define MASK_SRET 0xffffffff
#define MATCH_FNMADD_S 0x4f
#define MASK_FNMADD_S 0x600007f
#define MATCH_JAL 0x6f
#define MASK_JAL 0x7f
#define MATCH_LWU 0x6003
#define MASK_LWU 0x707f
#define MATCH_FMV_X_D 0xe2000053
#define MASK_FMV_X_D 0xfff0707f
#define MATCH_FCVT_D_S 0x42000053
#define MASK_FCVT_D_S 0xfff0007f
#define MATCH_FNMADD_D 0x200004f
#define MASK_FNMADD_D 0x600007f
#define MATCH_AMOADD_D 0x302f
#define MASK_AMOADD_D 0xf800707f
#define MATCH_LR_D 0x1000302f
#define MASK_LR_D 0xf9f0707f
#define MATCH_FCVT_W_S 0xc0000053
#define MASK_FCVT_W_S 0xfff0007f
#define MATCH_MULHSU 0x2002033
#define MASK_MULHSU 0xfe00707f
#define MATCH_AMOADD_W 0x202f
#define MASK_AMOADD_W 0xf800707f
#define MATCH_FCVT_D_LU 0xd2300053
#define MASK_FCVT_D_LU 0xfff0007f
#define MATCH_LR_W 0x1000202f
#define MASK_LR_W 0xf9f0707f
#define MATCH_FCVT_W_D 0xc2000053
#define MASK_FCVT_W_D 0xfff0007f
#define MATCH_SLT 0x2033
#define MASK_SLT 0xfe00707f
#define MATCH_SLLW 0x103b
#define MASK_SLLW 0xfe00707f
#define MATCH_AMOOR_D 0x4000302f
#define MASK_AMOOR_D 0xf800707f
#define MATCH_SLTI 0x2013
#define MASK_SLTI 0x707f
#define MATCH_REMU 0x2007033
#define MASK_REMU 0xfe00707f
#define MATCH_FLW 0x2007
#define MASK_FLW 0x707f
#define MATCH_REMW 0x200603b
#define MASK_REMW 0xfe00707f
#define MATCH_SLTU 0x3033
#define MASK_SLTU 0xfe00707f
#define MATCH_SLLI 0x1013
#define MASK_SLLI 0xfc00707f
#define MATCH_AMOOR_W 0x4000202f
#define MASK_AMOOR_W 0xf800707f
#define MATCH_BEQ 0x63
#define MASK_BEQ 0x707f
#define MATCH_FLD 0x3007
#define MASK_FLD 0x707f
#define MATCH_FSUB_S 0x8000053
#define MASK_FSUB_S 0xfe00007f
#define MATCH_AND 0x7033
#define MASK_AND 0xfe00707f
#define MATCH_FMV_D_X 0xf2000053
#define MASK_FMV_D_X 0xfff0707f
#define MATCH_LBU 0x4003
#define MASK_LBU 0x707f
#define MATCH_FSGNJ_S 0x20000053
#define MASK_FSGNJ_S 0xfe00707f
#define MATCH_AMOMAX_W 0xa000202f
#define MASK_AMOMAX_W 0xf800707f
#define MATCH_FSGNJ_D 0x22000053
#define MASK_FSGNJ_D 0xfe00707f
#define MATCH_MULHU 0x2003033
#define MASK_MULHU 0xfe00707f
#define MATCH_FCVT_L_D 0xc2200053
#define MASK_FCVT_L_D 0xfff0007f
#define MATCH_FCVT_S_WU 0xd0100053
#define MASK_FCVT_S_WU 0xfff0007f
#define MATCH_FCVT_LU_S 0xc0300053
#define MASK_FCVT_LU_S 0xfff0007f
#define MATCH_FCVT_S_L 0xd0200053
#define MASK_FCVT_S_L 0xfff0007f
#define MATCH_AUIPC 0x17
#define MASK_AUIPC 0x7f
#define MATCH_FCVT_LU_D 0xc2300053
#define MASK_FCVT_LU_D 0xfff0007f
#define MATCH_CSRRWI 0x5073
#define MASK_CSRRWI 0x707f
#define MATCH_SC_D 0x1800302f
#define MASK_SC_D 0xf800707f
#define MATCH_FMADD_S 0x43
#define MASK_FMADD_S 0x600007f
#define MATCH_FSQRT_S 0x58000053
#define MASK_FSQRT_S 0xfff0007f
#define MATCH_AMOMIN_W 0x8000202f
#define MASK_AMOMIN_W 0xf800707f
#define MATCH_FSGNJN_S 0x20001053
#define MASK_FSGNJN_S 0xfe00707f
#define MATCH_AMOSWAP_D 0x800302f
#define MASK_AMOSWAP_D 0xf800707f
#define MATCH_FSQRT_D 0x5a000053
#define MASK_FSQRT_D 0xfff0007f
#define MATCH_FMADD_D 0x2000043
#define MASK_FMADD_D 0x600007f
#define MATCH_DIVW 0x200403b
#define MASK_DIVW 0xfe00707f
#define MATCH_AMOMIN_D 0x8000302f
#define MASK_AMOMIN_D 0xf800707f
#define MATCH_DIVU 0x2005033
#define MASK_DIVU 0xfe00707f
#define MATCH_AMOSWAP_W 0x800202f
#define MASK_AMOSWAP_W 0xf800707f
#define MATCH_JALR 0x67
#define MASK_JALR 0x707f
#define MATCH_FSD 0x3027
#define MASK_FSD 0x707f
#define MATCH_SW 0x2023
#define MASK_SW 0x707f
#define MATCH_FMSUB_S 0x47
#define MASK_FMSUB_S 0x600007f
#define MATCH_LHU 0x5003
#define MASK_LHU 0x707f
#define MATCH_SH 0x1023
#define MASK_SH 0x707f
#define MATCH_FSW 0x2027
#define MASK_FSW 0x707f
#define MATCH_SB 0x23
#define MASK_SB 0x707f
#define MATCH_FMSUB_D 0x2000047
#define MASK_FMSUB_D 0x600007f
#define MATCH_SD 0x3023
#define MASK_SD 0x707f
#define CSR_FFLAGS 0x1
#define CSR_FRM 0x2
#define CSR_FCSR 0x3
#define CSR_STATS 0xc0
#define CSR_SUP0 0x500
#define CSR_SUP1 0x501
#define CSR_EPC 0x502
#define CSR_BADVADDR 0x503
#define CSR_PTBR 0x504
#define CSR_ASID 0x505
#define CSR_COUNT 0x506
#define CSR_COMPARE 0x507
#define CSR_EVEC 0x508
#define CSR_CAUSE 0x509
#define CSR_STATUS 0x50a
#define CSR_HARTID 0x50b
#define CSR_IMPL 0x50c
#define CSR_FATC 0x50d
#define CSR_SEND_IPI 0x50e
#define CSR_CLEAR_IPI 0x50f
#define CSR_RESET 0x51d
#define CSR_TOHOST 0x51e
#define CSR_FROMHOST 0x51f
#define CSR_CYCLE 0xc00
#define CSR_TIME 0xc01
#define CSR_INSTRET 0xc02
#define CSR_UARCH0 0xcc0
#define CSR_UARCH1 0xcc1
#define CSR_UARCH2 0xcc2
#define CSR_UARCH3 0xcc3
#define CSR_UARCH4 0xcc4
#define CSR_UARCH5 0xcc5
#define CSR_UARCH6 0xcc6
#define CSR_UARCH7 0xcc7
#define CSR_UARCH8 0xcc8
#define CSR_UARCH9 0xcc9
#define CSR_UARCH10 0xcca
#define CSR_UARCH11 0xccb
#define CSR_UARCH12 0xccc
#define CSR_UARCH13 0xccd
#define CSR_UARCH14 0xcce
#define CSR_UARCH15 0xccf
#define CSR_COUNTH 0x586
#define CSR_CYCLEH 0xc80
#define CSR_TIMEH 0xc81
#define CSR_INSTRETH 0xc82
#define CAUSE_MISALIGNED_FETCH 0x0
#define CAUSE_FAULT_FETCH 0x1
#define CAUSE_ILLEGAL_INSTRUCTION 0x2
#define CAUSE_PRIVILEGED_INSTRUCTION 0x3
#define CAUSE_FP_DISABLED 0x4
#define CAUSE_SYSCALL 0x6
#define CAUSE_BREAKPOINT 0x7
#define CAUSE_MISALIGNED_LOAD 0x8
#define CAUSE_MISALIGNED_STORE 0x9
#define CAUSE_FAULT_LOAD 0xa
#define CAUSE_FAULT_STORE 0xb
#define CAUSE_ACCELERATOR_DISABLED 0xc
#endif
#ifdef DECLARE_INSN
DECLARE_INSN(fmv_s_x, MATCH_FMV_S_X, MASK_FMV_S_X)
DECLARE_INSN(amoxor_w, MATCH_AMOXOR_W, MASK_AMOXOR_W)
DECLARE_INSN(remuw, MATCH_REMUW, MASK_REMUW)
DECLARE_INSN(fmin_d, MATCH_FMIN_D, MASK_FMIN_D)
DECLARE_INSN(amomax_d, MATCH_AMOMAX_D, MASK_AMOMAX_D)
DECLARE_INSN(bltu, MATCH_BLTU, MASK_BLTU)
DECLARE_INSN(fsgnjn_d, MATCH_FSGNJN_D, MASK_FSGNJN_D)
DECLARE_INSN(fmin_s, MATCH_FMIN_S, MASK_FMIN_S)
DECLARE_INSN(csrrw, MATCH_CSRRW, MASK_CSRRW)
DECLARE_INSN(slliw, MATCH_SLLIW, MASK_SLLIW)
DECLARE_INSN(lb, MATCH_LB, MASK_LB)
DECLARE_INSN(fmax_s, MATCH_FMAX_S, MASK_FMAX_S)
DECLARE_INSN(lh, MATCH_LH, MASK_LH)
DECLARE_INSN(fcvt_d_w, MATCH_FCVT_D_W, MASK_FCVT_D_W)
DECLARE_INSN(lw, MATCH_LW, MASK_LW)
DECLARE_INSN(add, MATCH_ADD, MASK_ADD)
DECLARE_INSN(csrrc, MATCH_CSRRC, MASK_CSRRC)
DECLARE_INSN(fmax_d, MATCH_FMAX_D, MASK_FMAX_D)
DECLARE_INSN(bne, MATCH_BNE, MASK_BNE)
DECLARE_INSN(fcvt_s_d, MATCH_FCVT_S_D, MASK_FCVT_S_D)
DECLARE_INSN(bgeu, MATCH_BGEU, MASK_BGEU)
DECLARE_INSN(fadd_d, MATCH_FADD_D, MASK_FADD_D)
DECLARE_INSN(sltiu, MATCH_SLTIU, MASK_SLTIU)
DECLARE_INSN(fadd_s, MATCH_FADD_S, MASK_FADD_S)
DECLARE_INSN(fclass_d, MATCH_FCLASS_D, MASK_FCLASS_D)
DECLARE_INSN(fcvt_s_w, MATCH_FCVT_S_W, MASK_FCVT_S_W)
DECLARE_INSN(mul, MATCH_MUL, MASK_MUL)
DECLARE_INSN(amominu_d, MATCH_AMOMINU_D, MASK_AMOMINU_D)
DECLARE_INSN(fcvt_s_lu, MATCH_FCVT_S_LU, MASK_FCVT_S_LU)
DECLARE_INSN(srli, MATCH_SRLI, MASK_SRLI)
DECLARE_INSN(amominu_w, MATCH_AMOMINU_W, MASK_AMOMINU_W)
DECLARE_INSN(divuw, MATCH_DIVUW, MASK_DIVUW)
DECLARE_INSN(mulw, MATCH_MULW, MASK_MULW)
DECLARE_INSN(srlw, MATCH_SRLW, MASK_SRLW)
DECLARE_INSN(div, MATCH_DIV, MASK_DIV)
DECLARE_INSN(fdiv_d, MATCH_FDIV_D, MASK_FDIV_D)
DECLARE_INSN(fence, MATCH_FENCE, MASK_FENCE)
DECLARE_INSN(fnmsub_s, MATCH_FNMSUB_S, MASK_FNMSUB_S)
DECLARE_INSN(fcvt_l_s, MATCH_FCVT_L_S, MASK_FCVT_L_S)
DECLARE_INSN(sbreak, MATCH_SBREAK, MASK_SBREAK)
DECLARE_INSN(fle_s, MATCH_FLE_S, MASK_FLE_S)
DECLARE_INSN(fdiv_s, MATCH_FDIV_S, MASK_FDIV_S)
DECLARE_INSN(fle_d, MATCH_FLE_D, MASK_FLE_D)
DECLARE_INSN(fence_i, MATCH_FENCE_I, MASK_FENCE_I)
DECLARE_INSN(fnmsub_d, MATCH_FNMSUB_D, MASK_FNMSUB_D)
DECLARE_INSN(addw, MATCH_ADDW, MASK_ADDW)
DECLARE_INSN(sll, MATCH_SLL, MASK_SLL)
DECLARE_INSN(xor, MATCH_XOR, MASK_XOR)
DECLARE_INSN(sub, MATCH_SUB, MASK_SUB)
DECLARE_INSN(blt, MATCH_BLT, MASK_BLT)
DECLARE_INSN(scall, MATCH_SCALL, MASK_SCALL)
DECLARE_INSN(fclass_s, MATCH_FCLASS_S, MASK_FCLASS_S)
DECLARE_INSN(sc_w, MATCH_SC_W, MASK_SC_W)
DECLARE_INSN(rem, MATCH_REM, MASK_REM)
DECLARE_INSN(srliw, MATCH_SRLIW, MASK_SRLIW)
DECLARE_INSN(lui, MATCH_LUI, MASK_LUI)
DECLARE_INSN(csrrci, MATCH_CSRRCI, MASK_CSRRCI)
DECLARE_INSN(addi, MATCH_ADDI, MASK_ADDI)
DECLARE_INSN(mulh, MATCH_MULH, MASK_MULH)
DECLARE_INSN(fmul_s, MATCH_FMUL_S, MASK_FMUL_S)
DECLARE_INSN(csrrsi, MATCH_CSRRSI, MASK_CSRRSI)
DECLARE_INSN(srai, MATCH_SRAI, MASK_SRAI)
DECLARE_INSN(amoand_d, MATCH_AMOAND_D, MASK_AMOAND_D)
DECLARE_INSN(flt_d, MATCH_FLT_D, MASK_FLT_D)
DECLARE_INSN(sraw, MATCH_SRAW, MASK_SRAW)
DECLARE_INSN(fmul_d, MATCH_FMUL_D, MASK_FMUL_D)
DECLARE_INSN(ld, MATCH_LD, MASK_LD)
DECLARE_INSN(ori, MATCH_ORI, MASK_ORI)
DECLARE_INSN(csrrs, MATCH_CSRRS, MASK_CSRRS)
DECLARE_INSN(flt_s, MATCH_FLT_S, MASK_FLT_S)
DECLARE_INSN(addiw, MATCH_ADDIW, MASK_ADDIW)
DECLARE_INSN(amoand_w, MATCH_AMOAND_W, MASK_AMOAND_W)
DECLARE_INSN(feq_s, MATCH_FEQ_S, MASK_FEQ_S)
DECLARE_INSN(fsgnjx_d, MATCH_FSGNJX_D, MASK_FSGNJX_D)
DECLARE_INSN(sra, MATCH_SRA, MASK_SRA)
DECLARE_INSN(bge, MATCH_BGE, MASK_BGE)
DECLARE_INSN(sraiw, MATCH_SRAIW, MASK_SRAIW)
DECLARE_INSN(srl, MATCH_SRL, MASK_SRL)
DECLARE_INSN(fsub_d, MATCH_FSUB_D, MASK_FSUB_D)
DECLARE_INSN(fsgnjx_s, MATCH_FSGNJX_S, MASK_FSGNJX_S)
DECLARE_INSN(feq_d, MATCH_FEQ_D, MASK_FEQ_D)
DECLARE_INSN(fcvt_d_wu, MATCH_FCVT_D_WU, MASK_FCVT_D_WU)
DECLARE_INSN(or, MATCH_OR, MASK_OR)
DECLARE_INSN(fcvt_wu_d, MATCH_FCVT_WU_D, MASK_FCVT_WU_D)
DECLARE_INSN(subw, MATCH_SUBW, MASK_SUBW)
DECLARE_INSN(fcvt_d_l, MATCH_FCVT_D_L, MASK_FCVT_D_L)
DECLARE_INSN(amomaxu_d, MATCH_AMOMAXU_D, MASK_AMOMAXU_D)
DECLARE_INSN(xori, MATCH_XORI, MASK_XORI)
DECLARE_INSN(amoxor_d, MATCH_AMOXOR_D, MASK_AMOXOR_D)
DECLARE_INSN(amomaxu_w, MATCH_AMOMAXU_W, MASK_AMOMAXU_W)
DECLARE_INSN(fcvt_wu_s, MATCH_FCVT_WU_S, MASK_FCVT_WU_S)
DECLARE_INSN(andi, MATCH_ANDI, MASK_ANDI)
DECLARE_INSN(fmv_x_s, MATCH_FMV_X_S, MASK_FMV_X_S)
DECLARE_INSN(sret, MATCH_SRET, MASK_SRET)
DECLARE_INSN(fnmadd_s, MATCH_FNMADD_S, MASK_FNMADD_S)
DECLARE_INSN(jal, MATCH_JAL, MASK_JAL)
DECLARE_INSN(lwu, MATCH_LWU, MASK_LWU)
DECLARE_INSN(fmv_x_d, MATCH_FMV_X_D, MASK_FMV_X_D)
DECLARE_INSN(fcvt_d_s, MATCH_FCVT_D_S, MASK_FCVT_D_S)
DECLARE_INSN(fnmadd_d, MATCH_FNMADD_D, MASK_FNMADD_D)
DECLARE_INSN(amoadd_d, MATCH_AMOADD_D, MASK_AMOADD_D)
DECLARE_INSN(lr_d, MATCH_LR_D, MASK_LR_D)
DECLARE_INSN(fcvt_w_s, MATCH_FCVT_W_S, MASK_FCVT_W_S)
DECLARE_INSN(mulhsu, MATCH_MULHSU, MASK_MULHSU)
DECLARE_INSN(amoadd_w, MATCH_AMOADD_W, MASK_AMOADD_W)
DECLARE_INSN(fcvt_d_lu, MATCH_FCVT_D_LU, MASK_FCVT_D_LU)
DECLARE_INSN(lr_w, MATCH_LR_W, MASK_LR_W)
DECLARE_INSN(fcvt_w_d, MATCH_FCVT_W_D, MASK_FCVT_W_D)
DECLARE_INSN(slt, MATCH_SLT, MASK_SLT)
DECLARE_INSN(sllw, MATCH_SLLW, MASK_SLLW)
DECLARE_INSN(amoor_d, MATCH_AMOOR_D, MASK_AMOOR_D)
DECLARE_INSN(slti, MATCH_SLTI, MASK_SLTI)
DECLARE_INSN(remu, MATCH_REMU, MASK_REMU)
DECLARE_INSN(flw, MATCH_FLW, MASK_FLW)
DECLARE_INSN(remw, MATCH_REMW, MASK_REMW)
DECLARE_INSN(sltu, MATCH_SLTU, MASK_SLTU)
DECLARE_INSN(slli, MATCH_SLLI, MASK_SLLI)
DECLARE_INSN(amoor_w, MATCH_AMOOR_W, MASK_AMOOR_W)
DECLARE_INSN(beq, MATCH_BEQ, MASK_BEQ)
DECLARE_INSN(fld, MATCH_FLD, MASK_FLD)
DECLARE_INSN(fsub_s, MATCH_FSUB_S, MASK_FSUB_S)
DECLARE_INSN(and, MATCH_AND, MASK_AND)
DECLARE_INSN(fmv_d_x, MATCH_FMV_D_X, MASK_FMV_D_X)
DECLARE_INSN(lbu, MATCH_LBU, MASK_LBU)
DECLARE_INSN(fsgnj_s, MATCH_FSGNJ_S, MASK_FSGNJ_S)
DECLARE_INSN(amomax_w, MATCH_AMOMAX_W, MASK_AMOMAX_W)
DECLARE_INSN(fsgnj_d, MATCH_FSGNJ_D, MASK_FSGNJ_D)
DECLARE_INSN(mulhu, MATCH_MULHU, MASK_MULHU)
DECLARE_INSN(fcvt_l_d, MATCH_FCVT_L_D, MASK_FCVT_L_D)
DECLARE_INSN(fcvt_s_wu, MATCH_FCVT_S_WU, MASK_FCVT_S_WU)
DECLARE_INSN(fcvt_lu_s, MATCH_FCVT_LU_S, MASK_FCVT_LU_S)
DECLARE_INSN(fcvt_s_l, MATCH_FCVT_S_L, MASK_FCVT_S_L)
DECLARE_INSN(auipc, MATCH_AUIPC, MASK_AUIPC)
DECLARE_INSN(fcvt_lu_d, MATCH_FCVT_LU_D, MASK_FCVT_LU_D)
DECLARE_INSN(csrrwi, MATCH_CSRRWI, MASK_CSRRWI)
DECLARE_INSN(sc_d, MATCH_SC_D, MASK_SC_D)
DECLARE_INSN(fmadd_s, MATCH_FMADD_S, MASK_FMADD_S)
DECLARE_INSN(fsqrt_s, MATCH_FSQRT_S, MASK_FSQRT_S)
DECLARE_INSN(amomin_w, MATCH_AMOMIN_W, MASK_AMOMIN_W)
DECLARE_INSN(fsgnjn_s, MATCH_FSGNJN_S, MASK_FSGNJN_S)
DECLARE_INSN(amoswap_d, MATCH_AMOSWAP_D, MASK_AMOSWAP_D)
DECLARE_INSN(fsqrt_d, MATCH_FSQRT_D, MASK_FSQRT_D)
DECLARE_INSN(fmadd_d, MATCH_FMADD_D, MASK_FMADD_D)
DECLARE_INSN(divw, MATCH_DIVW, MASK_DIVW)
DECLARE_INSN(amomin_d, MATCH_AMOMIN_D, MASK_AMOMIN_D)
DECLARE_INSN(divu, MATCH_DIVU, MASK_DIVU)
DECLARE_INSN(amoswap_w, MATCH_AMOSWAP_W, MASK_AMOSWAP_W)
DECLARE_INSN(jalr, MATCH_JALR, MASK_JALR)
DECLARE_INSN(fsd, MATCH_FSD, MASK_FSD)
DECLARE_INSN(sw, MATCH_SW, MASK_SW)
DECLARE_INSN(fmsub_s, MATCH_FMSUB_S, MASK_FMSUB_S)
DECLARE_INSN(lhu, MATCH_LHU, MASK_LHU)
DECLARE_INSN(sh, MATCH_SH, MASK_SH)
DECLARE_INSN(fsw, MATCH_FSW, MASK_FSW)
DECLARE_INSN(sb, MATCH_SB, MASK_SB)
DECLARE_INSN(fmsub_d, MATCH_FMSUB_D, MASK_FMSUB_D)
DECLARE_INSN(sd, MATCH_SD, MASK_SD)
#endif
#ifdef DECLARE_CSR
DECLARE_CSR(fflags, CSR_FFLAGS)
DECLARE_CSR(frm, CSR_FRM)
DECLARE_CSR(fcsr, CSR_FCSR)
DECLARE_CSR(stats, CSR_STATS)
DECLARE_CSR(sup0, CSR_SUP0)
DECLARE_CSR(sup1, CSR_SUP1)
DECLARE_CSR(epc, CSR_EPC)
DECLARE_CSR(badvaddr, CSR_BADVADDR)
DECLARE_CSR(ptbr, CSR_PTBR)
DECLARE_CSR(asid, CSR_ASID)
DECLARE_CSR(count, CSR_COUNT)
DECLARE_CSR(compare, CSR_COMPARE)
DECLARE_CSR(evec, CSR_EVEC)
DECLARE_CSR(cause, CSR_CAUSE)
DECLARE_CSR(status, CSR_STATUS)
DECLARE_CSR(hartid, CSR_HARTID)
DECLARE_CSR(impl, CSR_IMPL)
DECLARE_CSR(fatc, CSR_FATC)
DECLARE_CSR(send_ipi, CSR_SEND_IPI)
DECLARE_CSR(clear_ipi, CSR_CLEAR_IPI)
DECLARE_CSR(reset, CSR_RESET)
DECLARE_CSR(tohost, CSR_TOHOST)
DECLARE_CSR(fromhost, CSR_FROMHOST)
DECLARE_CSR(cycle, CSR_CYCLE)
DECLARE_CSR(time, CSR_TIME)
DECLARE_CSR(instret, CSR_INSTRET)
DECLARE_CSR(uarch0, CSR_UARCH0)
DECLARE_CSR(uarch1, CSR_UARCH1)
DECLARE_CSR(uarch2, CSR_UARCH2)
DECLARE_CSR(uarch3, CSR_UARCH3)
DECLARE_CSR(uarch4, CSR_UARCH4)
DECLARE_CSR(uarch5, CSR_UARCH5)
DECLARE_CSR(uarch6, CSR_UARCH6)
DECLARE_CSR(uarch7, CSR_UARCH7)
DECLARE_CSR(uarch8, CSR_UARCH8)
DECLARE_CSR(uarch9, CSR_UARCH9)
DECLARE_CSR(uarch10, CSR_UARCH10)
DECLARE_CSR(uarch11, CSR_UARCH11)
DECLARE_CSR(uarch12, CSR_UARCH12)
DECLARE_CSR(uarch13, CSR_UARCH13)
DECLARE_CSR(uarch14, CSR_UARCH14)
DECLARE_CSR(uarch15, CSR_UARCH15)
DECLARE_CSR(counth, CSR_COUNTH)
DECLARE_CSR(cycleh, CSR_CYCLEH)
DECLARE_CSR(timeh, CSR_TIMEH)
DECLARE_CSR(instreth, CSR_INSTRETH)
#endif
#ifdef DECLARE_CAUSE
DECLARE_CAUSE("fflags", CAUSE_FFLAGS)
DECLARE_CAUSE("frm", CAUSE_FRM)
DECLARE_CAUSE("fcsr", CAUSE_FCSR)
DECLARE_CAUSE("stats", CAUSE_STATS)
DECLARE_CAUSE("sup0", CAUSE_SUP0)
DECLARE_CAUSE("sup1", CAUSE_SUP1)
DECLARE_CAUSE("epc", CAUSE_EPC)
DECLARE_CAUSE("badvaddr", CAUSE_BADVADDR)
DECLARE_CAUSE("ptbr", CAUSE_PTBR)
DECLARE_CAUSE("asid", CAUSE_ASID)
DECLARE_CAUSE("count", CAUSE_COUNT)
DECLARE_CAUSE("compare", CAUSE_COMPARE)
DECLARE_CAUSE("evec", CAUSE_EVEC)
DECLARE_CAUSE("cause", CAUSE_CAUSE)
DECLARE_CAUSE("status", CAUSE_STATUS)
DECLARE_CAUSE("hartid", CAUSE_HARTID)
DECLARE_CAUSE("impl", CAUSE_IMPL)
DECLARE_CAUSE("fatc", CAUSE_FATC)
DECLARE_CAUSE("send_ipi", CAUSE_SEND_IPI)
DECLARE_CAUSE("clear_ipi", CAUSE_CLEAR_IPI)
DECLARE_CAUSE("reset", CAUSE_RESET)
DECLARE_CAUSE("tohost", CAUSE_TOHOST)
DECLARE_CAUSE("fromhost", CAUSE_FROMHOST)
DECLARE_CAUSE("cycle", CAUSE_CYCLE)
DECLARE_CAUSE("time", CAUSE_TIME)
DECLARE_CAUSE("instret", CAUSE_INSTRET)
DECLARE_CAUSE("uarch0", CAUSE_UARCH0)
DECLARE_CAUSE("uarch1", CAUSE_UARCH1)
DECLARE_CAUSE("uarch2", CAUSE_UARCH2)
DECLARE_CAUSE("uarch3", CAUSE_UARCH3)
DECLARE_CAUSE("uarch4", CAUSE_UARCH4)
DECLARE_CAUSE("uarch5", CAUSE_UARCH5)
DECLARE_CAUSE("uarch6", CAUSE_UARCH6)
DECLARE_CAUSE("uarch7", CAUSE_UARCH7)
DECLARE_CAUSE("uarch8", CAUSE_UARCH8)
DECLARE_CAUSE("uarch9", CAUSE_UARCH9)
DECLARE_CAUSE("uarch10", CAUSE_UARCH10)
DECLARE_CAUSE("uarch11", CAUSE_UARCH11)
DECLARE_CAUSE("uarch12", CAUSE_UARCH12)
DECLARE_CAUSE("uarch13", CAUSE_UARCH13)
DECLARE_CAUSE("uarch14", CAUSE_UARCH14)
DECLARE_CAUSE("uarch15", CAUSE_UARCH15)
DECLARE_CAUSE("counth", CAUSE_COUNTH)
DECLARE_CAUSE("cycleh", CAUSE_CYCLEH)
DECLARE_CAUSE("timeh", CAUSE_TIMEH)
DECLARE_CAUSE("instreth", CAUSE_INSTRETH)
#endif

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/*
* This file is part of the libpayload project.
*
* Copyright 2013 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#ifndef _ARCH_EXCEPTION_H
#define _ARCH_EXCEPTION_H
#include <stdint.h>
static inline void exception_init(void)
{
}
#endif

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static inline __attribute__((always_inline)) void hlt(void)
{
while(1);
}

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#ifndef _ASM_IO_H
#define _ASM_IO_H
#include <stdint.h>
static inline void outb(uint8_t value, uint16_t port)
{
}
static inline void outw(uint16_t value, uint16_t port)
{
}
static inline void outl(uint32_t value, uint16_t port)
{
}
static inline uint8_t inb(uint16_t port)
{
return 0;
}
static inline uint16_t inw(uint16_t port)
{
return 0;
}
static inline uint32_t inl(uint16_t port)
{
return 0;
}
#endif

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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 The ChromiumOS Authors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __ARCH_STAGES_H
#define __ARCH_STAGES_H
extern void main(void);
void stage_entry(void) __attribute__((section(".text.stage_entry.riscv")));
void stage_exit(void *);
void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size);
#endif

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#ifdef CONFIG_BOOTBLOCK_CPU_INIT
#include CONFIG_BOOTBLOCK_CPU_INIT
#endif
// I'm disappointed that we let this kind of thing creep in.
// we null out functions with this kind of stuff, AND weak symbols,
// AND empty cpp function defines. What's next? Ouija boards?
#if 0
#ifdef CONFIG_BOOTBLOCK_MAINBOARD_INIT
#include CONFIG_BOOTBLOCK_MAINBOARD_INIT
#else
static void bootblock_mainboard_init(void)
{
}
#endif
#endif

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#ifndef RISCV_STDINT_H
#define RISCV_STDINT_H
/* Exact integral types */
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef signed short int16_t;
typedef unsigned int uint32_t;
typedef signed int int32_t;
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
/* Small types */
typedef unsigned char uint_least8_t;
typedef signed char int_least8_t;
typedef unsigned short uint_least16_t;
typedef signed short int_least16_t;
typedef unsigned int uint_least32_t;
typedef signed int int_least32_t;
typedef unsigned long long uint_least64_t;
typedef signed long long int_least64_t;
/* Fast Types */
typedef unsigned char uint_fast8_t;
typedef signed char int_fast8_t;
typedef unsigned int uint_fast16_t;
typedef signed int int_fast16_t;
typedef unsigned int uint_fast32_t;
typedef signed int int_fast32_t;
typedef unsigned long long uint_fast64_t;
typedef signed long long int_fast64_t;
typedef long long int intmax_t;
typedef unsigned long long uintmax_t;
typedef uint8_t u8;
typedef uint16_t u16;
typedef uint32_t u32;
typedef uint64_t u64;
typedef int8_t s8;
typedef int16_t s16;
typedef int32_t s32;
typedef int64_t s64;
/* Types for `void *' pointers. */
typedef s64 intptr_t;
typedef u64 uintptr_t;
#endif /* RISCV_STDINT_H */

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#include <delay.h>
void init_timer(void)
{
}
void udelay(unsigned int n)
{
}

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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2002 Eric Biederman
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
.section ".rom.data", "a", @progbits
.section ".rom.text", "ax", @progbits

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/*
* Memory map:
*
* CONFIG_RAMBASE : text segment
* : rodata segment
* : data segment
* : bss segment
* : stack
* : heap
*/
/*
* Copyright 2013 Google Inc.
* Bootstrap code for the STPC Consumer
* Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
*/
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
* Rewritten by Eric Biederman
* 2005.12 yhlu add ramstage cross the vga font buffer handling
*/
/* We use ELF as output format. So that we can debug the code in some form. */
INCLUDE ldoptions
ENTRY(stage_entry)
PHDRS
{
to_load PT_LOAD;
}
SECTIONS
{
. = 0x100000; /*CONFIG_SYS_SDRAM_BASE;*/
/* First we place the code and read only data (typically const declared).
* This could theoretically be placed in rom.
*/
.text : {
_text = .;
_start = .;
*(.text.stage_entry.riscv);
*(.text);
*(.text.*);
. = ALIGN(16);
_etext = .;
} : to_load
.ctors : {
. = ALIGN(0x100);
__CTOR_LIST__ = .;
*(.ctors);
LONG(0);
__CTOR_END__ = .;
}
.rodata : {
_rodata = .;
. = ALIGN(4);
console_drivers = .;
*(.rodata.console_drivers)
econsole_drivers = . ;
. = ALIGN(4);
pci_drivers = . ;
*(.rodata.pci_driver)
epci_drivers = . ;
cpu_drivers = . ;
*(.rodata.cpu_driver)
ecpu_drivers = . ;
_bs_init_begin = .;
*(.bs_init)
_bs_init_end = .;
*(.rodata)
*(.rodata.*)
/* kevinh/Ispiri - Added an align, because the objcopy tool
* incorrectly converts sections that are not long word aligned.
*/
. = ALIGN(4);
_erodata = .;
}
/* After the code we place initialized data (typically initialized
* global variables). This gets copied into ram by startup code.
* __data_start and __data_end shows where in ram this should be placed,
* whereas __data_loadstart and __data_loadend shows where in rom to
* copy from.
*/
.data : {
_data = .;
*(.data)
_edata = .;
}
/* bss does not contain data, it is just a space that should be zero
* initialized on startup. (typically uninitialized global variables)
* crt0.S fills between _bss and _ebss with zeroes.
*/
_bss = .;
.bss . : {
*(.bss)
*(.sbss)
*(COMMON)
}
_ebss = .;
_end = .;
/* coreboot really "ends" here. Only heap and stack are placed after
* this line.
*/
_heap = .;
.heap . : {
/* Reserve CONFIG_HEAP_SIZE bytes for the heap */
. = CONFIG_HEAP_SIZE ;
. = ALIGN(4);
}
_eheap = .;
_stack = CONFIG_STACK_BOTTOM;
_estack = CONFIG_STACK_TOP;
/* The ram segment. This includes all memory used by the memory
* resident copy of coreboot, except the tables that are produced on
* the fly, but including stack and heap.
*/
_ram_seg = _text;
_eram_seg = _eheap;
/* Discard the sections we don't need/want */
/DISCARD/ : {
*(.comment)
*(.note)
*(.note.*)
}
}

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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include <cbfs.h>
#include <string.h>
#ifdef LIBPAYLOAD
# define printk(x...)
# define init_default_cbfs_media libpayload_init_default_cbfs_media
extern int libpayload_init_default_cbfs_media(struct cbfs_media *media);
#else
# include <console/console.h>
#endif
// Implementation of memory-mapped ROM media source on X86.
static int rom_media_open(struct cbfs_media *media) {
return 0;
}
static void *rom_media_map(struct cbfs_media *media, size_t offset, size_t count) {
void *ptr;
printk(BIOS_INFO, "%s: media %p, offset %lx, size %ld.\n", __func__, media, offset, count);
ptr = (void*)offset;
return ptr;
}
static void *rom_media_unmap(struct cbfs_media *media, const void *address) {
return NULL;
}
static size_t rom_media_read(struct cbfs_media *media, void *dest, size_t offset,
size_t count) {
void *ptr = rom_media_map(media, offset, count);
memcpy(dest, ptr, count);
rom_media_unmap(media, ptr);
return count;
}
static int rom_media_close(struct cbfs_media *media) {
return 0;
}
static int init_rom_media_cbfs(struct cbfs_media *media) {
//extern unsigned long _cbfs_master_header;
// On X86, we always keep a reference of pointer to CBFS header in
// 0xfffffffc, and the pointer is still a memory-mapped address.
// Since the CBFS core always use ROM offset, we need to figure out
// header->romsize even before media is initialized.
struct cbfs_header *header = (struct cbfs_header*) CONFIG_CBFS_HEADER_ROM_OFFSET; //&_cbfs_master_header;
if (CBFS_HEADER_MAGIC != ntohl(header->magic)) {
printk(BIOS_ERR, "Invalid CBFS master header at %p\n", header);
printk(BIOS_ERR, "Expected %08lx and got %08lx\n", (unsigned long) CBFS_HEADER_MAGIC, (unsigned long) ntohl(header->magic));
return -1;
} else {
uint32_t romsize = ntohl(header->romsize);
media->context = (void*)(uintptr_t)romsize;
#if defined(CONFIG_ROM_SIZE)
if (CONFIG_ROM_SIZE != romsize)
printk(BIOS_INFO, "Warning: rom size unmatch (%d/%d)\n",
CONFIG_ROM_SIZE, romsize);
#endif
}
media->open = rom_media_open;
media->close = rom_media_close;
media->map = rom_media_map;
media->unmap = rom_media_unmap;
media->read = rom_media_read;
return 0;
}
int init_default_cbfs_media(struct cbfs_media *media) {
return init_rom_media_cbfs(media);
}
// bug in coreboot. Fix me.
// even if you have no use for lzma cbfs demands it.
// and the ulzma code is terrible -- full of bad 32/64 bad things.
unsigned long ulzma(unsigned char *src, unsigned char *dst);
unsigned long ulzma(unsigned char *src, unsigned char *dst)
{
return 0;
}

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/*
* Memory map:
*
* CONFIG_ROMSTAGE_BASE : text segment
* : rodata segment
* : data segment
* : bss segment
* : stack
* : heap
*/
/*
* Bootstrap code for the STPC Consumer
* Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
*/
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
* Rewritten by Eric Biederman
* 2005.12 yhlu add ramstage cross the vga font buffer handling
*/
/* We use ELF as output format. So that we can debug the code in some form. */
/*
INCLUDE ldoptions
*/
/* We use ELF as output format. So that we can debug the code in some form. */
OUTPUT_FORMAT("elf64-littleriscv", "elf64-littleriscv", "elf64-littleriscv")
OUTPUT_ARCH(riscv)
INCLUDE ldoptions
PHDRS
{
to_load PT_LOAD;
}
ENTRY(stage_entry)
SECTIONS
{
. = CONFIG_ROMSTAGE_BASE;
.romtext . : {
_start = .;
*(.text.stage_entry.riscv);
*(.text.startup);
*(.text);
*(.text.*);
} : to_load
.romdata . : {
*(.rodata);
*(.rodata.*);
*(.machine_param);
*(.data);
*(.data.*);
. = ALIGN(8);
_erom = .;
}
__image_copy_end = .;
/* bss does not contain data, it is just a space that should be zero
* initialized on startup. (typically uninitialized global variables)
* crt0.S fills between _bss and _ebss with zeroes.
*/
.bss . : {
. = ALIGN(8);
_bss = .;
*(.bss)
*(.bss.*)
*(.sbss)
*(.sbss.*)
_ebss = .;
}
_end = .;
/*preram_cbmem_console = CONFIG_CBMEM_CONSOLE_PRERAM_BASE;*/
/* Discard the sections we don't need/want */
/DISCARD/ : {
*(.comment)
*(.note)
*(.comment.*)
*(.note.*)
*(.eh_frame);
}
}

52
src/arch/riscv/stages.c Normal file
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@ -0,0 +1,52 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* This file contains entry/exit functions for each stage during coreboot
* execution (bootblock entry and ramstage exit will depend on external
* loading).
*
* Entry points must be placed at the location the previous stage jumps
* to (the lowest address in the stage image). This is done by giving
* stage_entry() its own section in .text and placing it first in the
* linker script.
*/
#include <arch/stages.h>
void stage_entry(void)
{
main();
}
/* we had marked 'doit' as 'noreturn'.
* There is no apparent harm in leaving it as something we can return from, and in the one
* case where we call a payload, the payload is allowed to return.
* Hence, leave it as something we can return from.
*/
void stage_exit(void *addr)
{
void (*doit)(void) = addr;
/*
* Most stages load code so we need to sync caches here. Should maybe
* go into cbfs_load_stage() instead...
*/
//cache_sync_instructions();
doit();
}

96
src/arch/riscv/tables.c Normal file
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@ -0,0 +1,96 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2003 Eric Biederman
* Copyright (C) 2005 Steve Magnani
* Copyright (C) 2008-2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <cpu/cpu.h>
#include <boot/tables.h>
#include <boot/coreboot_tables.h>
#include <string.h>
#include <cbmem.h>
#include <lib.h>
#define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
#if ! IS_ENABLED(CONFIG_DYNAMIC_CBMEM)
/*
* TODO: "High" tables are a convention used on x86. Maybe we can
* clean up that naming at some point.
*/
uint64_t high_tables_base = 0;
uint64_t high_tables_size;
#endif
void cbmem_arch_init(void)
{
}
// WTF. this does not agre with the prototype!
static struct lb_memory *wtf_write_tables(void)
{
unsigned long table_pointer, new_table_pointer;
#if ! IS_ENABLED(CONFIG_DYNAMIC_CBMEM)
if (!high_tables_base) {
printk(BIOS_ERR, "ERROR: high_tables_base is not set.\n");
}
printk(BIOS_DEBUG, "high_tables_base: %llx.\n", high_tables_base);
#endif
post_code(0x9d);
table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE,
MAX_COREBOOT_TABLE_SIZE);
if (!table_pointer) {
printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n");
return NULL;
}
new_table_pointer = write_coreboot_table(0UL, 0UL,
table_pointer, table_pointer);
if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE)) {
printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n",
new_table_pointer - table_pointer, MAX_COREBOOT_TABLE_SIZE);
}
printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n",
new_table_pointer - table_pointer);
post_code(0x9e);
/* Print CBMEM sections */
cbmem_list();
// return get_lb_mem();
return NULL;
}
void write_tables(void)
{
wtf_write_tables();
}
void cbmem_fail_resume(void)
{
}
void get_cbmem_table(uint64_t *base, uint64_t *size)
{
}

2
src/console/Kconfig
View File

@ -2,7 +2,7 @@ menu "Console"
config BOOTBLOCK_CONSOLE config BOOTBLOCK_CONSOLE
bool "Enable early (bootblock) console output." bool "Enable early (bootblock) console output."
depends on ARCH_ARM depends on ARCH_ARM || ARCH_RISCV
default n default n
help help
Use console during the bootblock if supported Use console during the bootblock if supported

4
src/mainboard/emulation/Kconfig
View File

@ -12,6 +12,9 @@ config BOARD_EMULATION_QEMU_X86_Q35
config BOARD_EMULATION_QEMU_ARMV7 config BOARD_EMULATION_QEMU_ARMV7
bool "QEMU armv7 (vexpress-a9)" bool "QEMU armv7 (vexpress-a9)"
config BOARD_EMULATION_QEMU_UCB_RISCV
bool "QEMU ucb riscv"
endchoice endchoice
config BOARD_EMULATION_QEMU_X86 config BOARD_EMULATION_QEMU_X86
@ -22,6 +25,7 @@ config BOARD_EMULATION_QEMU_X86
source "src/mainboard/emulation/qemu-i440fx/Kconfig" source "src/mainboard/emulation/qemu-i440fx/Kconfig"
source "src/mainboard/emulation/qemu-q35/Kconfig" source "src/mainboard/emulation/qemu-q35/Kconfig"
source "src/mainboard/emulation/qemu-armv7/Kconfig" source "src/mainboard/emulation/qemu-armv7/Kconfig"
source "src/mainboard/emulation/qemu-riscv/Kconfig"
config MAINBOARD_VENDOR config MAINBOARD_VENDOR
string string

97
src/mainboard/emulation/qemu-riscv/Kconfig Normal file
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@ -0,0 +1,97 @@
##
## This file is part of the coreboot project.
##
## Copyright (C) 2014 Google Inc.
##
## This software is licensed under the terms of the GNU General Public
## License version 2, as published by the Free Software Foundation, and
## may be copied, distributed, and modified under those terms.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
# To execute, do:
# qemu-system-arm -M vexpress-a9 -m 1024M -nographic -kernel build/coreboot.rom
if BOARD_EMULATION_QEMU_UCB_RISCV
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
select SOC_UCB_RISCV
select BOARD_ROMSIZE_KB_4096
select ARCH_BOOTBLOCK_RISCV
select HAVE_UART_SPECIAL
config MAINBOARD_DIR
string
default emulation/qemu-riscv
config MAINBOARD_PART_NUMBER
string
default "QEMU RISCV"
config MAX_CPUS
int
default 1
config MAINBOARD_VENDOR
string
default "UCB"
config DRAM_SIZE_MB
int
default 32768
# Memory map for qemu riscv
#
# 0x0000_0000: jump instruction (by qemu)
# 0x0002_0000: bootblock (entry of kernel / firmware)
# 0x0003_0000: romstage, assume up to 128KB in size.
# 0x0007_ff00: stack pointer
# 0x0010_0000: CBFS header
# 0x0011_0000: CBFS data
# 0x0100_0000: reserved for ramstage
config BOOTBLOCK_BASE
hex
default 0x00000000
config ROMSTAGE_BASE
hex
default 0x00020000
config RAMSTAGE_BASE
hex
default 0x100000
config BOOTBLOCK_ROM_OFFSET
hex
default 0x0
config CBFS_HEADER_ROM_OFFSET
hex
default 0x10000
config CBFS_ROM_OFFSET
hex
default 0x10040
config RAMTOP
hex
default 0x1000000
config STACK_TOP
hex
default 0x0007ff00
config STACK_BOTTOM
hex
default 0x00040000
config STACK_SIZE
hex
default 0x0003ff00
endif # BOARD_EMULATION_QEMU_UCB_RISCV

19
src/mainboard/emulation/qemu-riscv/Makefile.inc Normal file
View File

@ -0,0 +1,19 @@
##
## This file is part of the coreboot project.
##
## Copyright (C) 2013 Google Inc.
##
## This software is licensed under the terms of the GNU General Public
## License version 2, as published by the Free Software Foundation, and
## may be copied, distributed, and modified under those terms.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
bootblock-y += bootblock.c
bootblock-y += uart.c
romstage-y += romstage.c
romstage-y += uart.c
ramstage-y += uart.c

2
src/mainboard/emulation/qemu-riscv/board_info.txt Normal file
View File

@ -0,0 +1,2 @@
Board name: QEMU RISCV
Category: emulation

45
src/mainboard/emulation/qemu-riscv/bootblock.c Normal file
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@ -0,0 +1,45 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2013 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <arch/exception.h>
#include <arch/hlt.h>
#include <bootblock_common.h>
#include <cbfs.h>
#include <console/console.h>
#include <arch/stages.h>
// the qemu part of all this is very, very non-hardware like.
// so it gets its own bootblock.
void main(void)
{
void *entry;
if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) {
console_init();
exception_init();
}
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, CONFIG_CBFS_PREFIX"/romstage");
if (! entry) {
printk(BIOS_EMERG, "AAAAAAAAAAAAAA no romstage!\n");
while (1);
}
stage_exit(entry);
}

20
src/mainboard/emulation/qemu-riscv/devicetree.cb Normal file
View File

@ -0,0 +1,20 @@
##
## This file is part of the coreboot project.
##
## Copyright (C) 2014 Google, Inc.
##
## This software is licensed under the terms of the GNU General Public
## License version 2, as published by the Free Software Foundation, and
## may be copied, distributed, and modified under those terms.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
chip soc/ucb/riscv
device cpu_cluster 0 on end
chip drivers/generic/generic # I2C0 controller
device i2c 6 on end # Fake component for testing
end
end

34
src/mainboard/emulation/qemu-riscv/mainboard.c Normal file
View File

@ -0,0 +1,34 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <console/console.h>
#include <device/device.h>
#include <cbmem.h>
static void mainboard_enable(device_t dev)
{
if (!dev) {
printk(BIOS_EMERG, "No dev0; die\n");
while (1);
}
ram_resource(dev, 0, 2048, 32768);
cbmem_recovery(0);
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};

29
src/mainboard/emulation/qemu-riscv/romstage.c Normal file
View File

@ -0,0 +1,29 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <cbfs.h>
#include <console/console.h>
#include <arch/stages.h>
void main(void)
{
void *entry;
console_init();
entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, CONFIG_CBFS_PREFIX"/ramstage");
stage_exit(entry);
}

60
src/mainboard/emulation/qemu-riscv/uart.c Normal file
View File

@ -0,0 +1,60 @@
/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <types.h>
#include <console/uart.h>
#include <arch/io.h>
#include <boot/coreboot_tables.h>
#include "frontend.h"
static uint8_t *buf = (void *)0x3f8;
uintptr_t uart_platform_base(int idx)
{
return (uintptr_t) buf;
}
void uart_init(int idx)
{
}
unsigned char uart_rx_byte(int idx)
{
return *buf;
}
void uart_tx_byte(int idx, unsigned char data)
{
*buf = data;
}
void uart_tx_flush(int idx)
{
}
#ifndef __PRE_RAM__
void uart_fill_lb(void *data)
{
struct lb_serial serial;
serial.type = LB_SERIAL_TYPE_MEMORY_MAPPED;
serial.baseaddr = 0x3f8;
serial.baud = 115200;
lb_add_serial(&serial, data);
lb_add_console(LB_TAG_CONSOLE_SERIAL8250MEM, data);
}
#endif

1
src/soc/Kconfig
View File

@ -2,3 +2,4 @@ source src/soc/intel/Kconfig
source src/soc/nvidia/Kconfig source src/soc/nvidia/Kconfig
source src/soc/qualcomm/Kconfig source src/soc/qualcomm/Kconfig
source src/soc/samsung/Kconfig source src/soc/samsung/Kconfig
source src/soc/ucb/Kconfig

1
src/soc/Makefile.inc
View File

@ -5,3 +5,4 @@ subdirs-y += intel
subdirs-y += nvidia subdirs-y += nvidia
subdirs-y += qualcomm subdirs-y += qualcomm
subdirs-y += samsung subdirs-y += samsung
subdirs-y += ucb

1
src/soc/ucb/Kconfig Normal file
View File

@ -0,0 +1 @@
source src/soc/ucb/riscv/Kconfig

1
src/soc/ucb/Makefile.inc Normal file
View File

@ -0,0 +1 @@
subdirs-$(CONFIG_CPU_UCB_RISCV) += riscv

11
src/soc/ucb/riscv/Kconfig Normal file
View File

@ -0,0 +1,11 @@
config SOC_UCB_RISCV
select ARCH_RISCV
select ARCH_BOOTBLOCK_RISCV
select ARCH_ROMSTAGE_RISCV
select ARCH_RAMSTAGE_RISCV
bool
default n
if SOC_UCB_RISCV
endif

3
src/soc/ucb/riscv/Makefile.inc Normal file
View File

@ -0,0 +1,3 @@
romstage-y += cbmem.c
ramstage-y += cbmem.c

24
src/soc/ucb/riscv/cbmem.c Normal file
View File

@ -0,0 +1,24 @@
/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cbmem.h>
void *cbmem_top(void)
{
// TODO: find out how RISCV stores this.
return (void *)0x1fff000;
}

1
toolchain.inc
View File

@ -57,6 +57,7 @@ ARCHDIR-i386 := x86
ARCHDIR-x86_32 := x86 ARCHDIR-x86_32 := x86
ARCHDIR-arm := arm ARCHDIR-arm := arm
ARCHDIR-arm64 := arm64 ARCHDIR-arm64 := arm64
ARCHDIR-riscv := riscv
CFLAGS_arm := -mno-unaligned-access -ffunction-sections -fdata-sections CFLAGS_arm := -mno-unaligned-access -ffunction-sections -fdata-sections