developer/xiuos
1
0
Fork 0
forked from xuos/xiuos
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

First commit XiUOS

Browse Source
This commit is contained in:
xuetest
2021-04-28 17:49:18 +08:00
commit 6001051eb7
1331 changed files with 433955 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

206
arch/risc-v/fe310/LICENSE Normal file
View File

@@ -0,0 +1,206 @@
This software, except as otherwise noted in subrepositories,
is licensed under the Apache 2 license, quoted below.
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
pertain to any part of the Derivative Works, in at least one
of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
documentation, if provided along with the Derivative Works; or,
within a display generated by the Derivative Works, if and
wherever such third-party notices normally appear. The contents
of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
origin of the Work and reproducing the content of the NOTICE file.
7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
Contributor provides its Contributions) on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied, including, without limitation, any warranties or conditions
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
PARTICULAR PURPOSE. You are solely responsible for determining the
appropriateness of using or redistributing the Work and assume any
risks associated with Your exercise of permissions under this License.
8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
liable to You for damages, including any direct, indirect, special,
incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
identification within third-party archives.
Copyright 2016 SiFive, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

3
arch/risc-v/fe310/Makefile Normal file
View File

@@ -0,0 +1,3 @@
SRC_FILES := interrupt.c boot.S tick.c
include $(KERNEL_ROOT)/compiler.mk

28
arch/risc-v/fe310/arch_interrupt.h Normal file
View File

@@ -0,0 +1,28 @@
/*
* 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.
*/
#ifndef ARCH_INTERRUPT_H__
#define ARCH_INTERRUPT_H__
#include <stdint.h>
#include <plic_driver.h>
#define ARCH_MAX_IRQ_NUM IRQN_MAX
#define ARCH_IRQ_NUM_OFFSET 0
uint32_t GetInterruptNumber(void);
void HwInterruptAck(uint32_t irq);
int32_t ArchEnableHwIrq(int irq_num);
int32_t ArchDisableHwIrq(int irq_num);
#endif

133
arch/risc-v/fe310/boot.S Normal file
View File

@@ -0,0 +1,133 @@
// See LICENSE for license details.
/**
* @file boot.S
* @brief hifive1-rev-B-board start function
* @version 1.0
* @author AIIT XUOS Lab
* @date 2021-04-25
*/
/*************************************************
File name: boot.S
Description: hifive1-rev-B-board start function
Others: take freedom-e-sdk v20180402/bsp/env/start.S for references
https://github.com/sifive/freedom-e-sdk/releases/tag/v20180402
History:
1. Date: 2021-04-25
Author: AIIT XUOS Lab
Modification:
1. Modify entry function name
2. Modify OS startup function
3. Add interrupt entry function.
*************************************************/
#include <sifive/smp.h>
/* This is defined in sifive/platform.h, but that can't be included from
* assembly. */
#define CLINT_CTRL_ADDR 0x02000000
#include <encoding.h>
#include "register_para.h"
#include "boot.h"
.section .init
.globl _begin
.type _begin,@function
_begin:
.cfi_startproc
.cfi_undefined ra
.option push
.option norelax
la gp, __global_pointer$
.option pop
la sp, _sp
/* Load data section */
la a0, _data_lma
la a1, _data
la a2, _edata
bgeu a1, a2, 2f
1:
lw t0, (a0)
sw t0, (a1)
addi a0, a0, 4
addi a1, a1, 4
bltu a1, a2, 1b
2:
/* Clear bss section */
la a0, __bss_start
la a1, _end
bgeu a0, a1, 2f
1:
sw zero, (a0)
addi a0, a0, 4
bltu a0, a1, 1b
2:
/* Call global constructors */
//la a0, __libc_fini_array
//call atexit
//call __libc_init_array
#ifndef __riscv_float_abi_soft
/* Enable FPU */
li t0, MSTATUS_FS
csrs mstatus, t0
csrr t1, mstatus
and t1, t1, t0
beqz t1, 1f
fssr x0
1:
#endif
auipc ra, 0
addi sp, sp, -16
sw ra, 8(sp)
/* argc = argv = 0 */
li a0, 0
li a1, 0
call entry
/* tail exit */
1:
j 1b
.cfi_endproc
.section .text.entry
.align 2
.global save_hw_context
save_hw_context:
/* save all from thread context */
SAVE_X_REGISTERS
/* save break thread stack to s0 */
move s0, sp
#ifdef TASK_ISOLATION
csrr a0, mcause
srli a0, a0, 31
andi a0, a0, 0x1
beqz a0, 1f
#endif
/* switch to interrupt stack */
la sp, _sp
1:
/* interrupt handle */
csrr a0, mcause
csrr a1, mepc
mv a2, sp
call HandleTrap
/* switch to from_thread stack */
move sp, s0
mv a0, fp
call KTaskOsAssignAfterIrq
j SwitchKTaskContextExit

281
arch/risc-v/fe310/interrupt.c Normal file
View File

@@ -0,0 +1,281 @@
/*
* 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 <arch_interrupt.h>
#include <board.h>
#include <encoding.h>
#include <platform.h>
#include <plic_driver.h>
#include <xs_assign.h>
#include <xs_base.h>
#include <xs_isr.h>
#include <xs_ktask.h>
#ifdef TASK_ISOLATION
#include <xs_isolation.h>
#include <xs_service.h>
#endif
#define MAX_HANDLERS PLIC_NUM_INTERRUPTS
extern plic_instance_t g_plic ;
x_base DisableLocalInterrupt()
{
x_base level;
asm volatile ("csrrci %0, mstatus, 8" : "=r"(level));
return level;
}
void EnableLocalInterrupt(x_base level)
{
asm volatile ("csrw mstatus, %0" :: "r"(level));
}
/**
* This function will mask a interrupt.
* @param vector the interrupt number
*/
int32_t ArchDisableHwIrq(int irq)
{
PLIC_disable_interrupt(&g_plic, irq);
return 0;
}
/**
* This function will un-mask a interrupt.
* @param vector the interrupt number
*/
int32_t ArchEnableHwIrq(int irq)
{
PLIC_enable_interrupt(&g_plic, irq);
PLIC_set_priority(&g_plic, irq, 1);
return 0;
}
uint32_t GetInterruptNumber(void)
{
return (uint32_t)PLIC_claim_interrupt(&g_plic);
}
void HwInterruptAck(uint32_t irq)
{
PLIC_complete_interrupt(&g_plic, irq);
}
/**
* This function will be call when external machine-level
* interrupt from PLIC occurred.
*/
uintptr_t HandleIrqMExt(uintptr_t cause, uintptr_t epc)
{
uint32_t irq;
/* get irq number */
irq = GetInterruptNumber();
/* get interrupt service routine */
isrManager.done->handleIrq(irq);
HwInterruptAck(irq);
}
extern int TickIsr(void);
#ifdef TASK_ISOLATION
uintptr_t HandleTrap(uintptr_t mcause, uintptr_t epc, uintptr_t * sp)
{
int cause = mcause & MCAUSE_CAUSE ;
if (mcause & MCAUSE_INT) {
isrManager.done->incCounter();
switch (cause) {
case IRQ_M_EXT:
HandleIrqMExt(mcause, epc);
break;
case IRQ_M_TIMER:
CLINT_MTIMECMP_ADDR = CLINT_MTIME_ADDR + TICK;
TickIsr();
break;
}
isrManager.done->decCounter();
}else {
x_base temp;
temp = DISABLE_INTERRUPT();
KTaskDescriptorType tid;
extern long ShowTask();
tid = GetKTaskDescriptor();
if(cause == CAUSE_USER_ECALL) {
tid->task_dync_sched_member.isolation_status = 1;
sp[0] += 4;
unsigned long service_num = (unsigned long)(sp[10]);
//KPrintf("Environment call from U-mode,service_num: %ld\n",service_num);
uint8_t param_num = g_service_table[service_num].param_num;
uintptr_t *param = sp + 11;
ENABLE_INTERRUPT(temp);
sp[10] = g_service_table[service_num].fun(service_num,param,param_num) ;
tid->task_dync_sched_member.isolation_status = 0;
} else if( cause == CAUSE_MACHINE_ECALL) {
unsigned long service_num = (unsigned long)(sp[10]);
KPrintf("Environment call from M-mode, task:%s, flag: %d,service_num: %d\n \n",tid->task_base_info.name,tid->task_dync_sched_member.isolation_flag, service_num);
sp[0] += 4;
ENABLE_INTERRUPT(temp);
}
else if (cause == CAUSE_FAULT_LOAD || cause == CAUSE_FAULT_STORE || cause == CAUSE_FAULT_FETCH ){
if ( tid->task_dync_sched_member.isolation_flag == 1) {
x_ubase fault_addr = READ_CSR(mtval);
// KPrintf("access fault ,addr : 0x%08x\n",fault_addr);
x_bool result ;
result = mem_access.FaultHandle(tid->task_dync_sched_member.isolation , fault_addr);
if(result)
mem_access.Load(tid->task_dync_sched_member.isolation);
else{
KPrintf("\nSegmentation fault, task: %s\n",tid->task_base_info.name);
KTaskQuit();
}
}else
goto __print;
}
else
{
KPrintf("\nException:\n");
tid = GetKTaskDescriptor();
switch (cause)
{
case CAUSE_MISALIGNED_FETCH:
KPrintf("Instruction address misaligned");
break;
case CAUSE_FAULT_FETCH:
KPrintf("Instruction access fault");
break;
case CAUSE_ILLEGAL_INSTRUCTION:
KPrintf("Illegal instruction");
break;
case CAUSE_BREAKPOINT:
KPrintf("Breakpoint");
break;
case CAUSE_MISALIGNED_LOAD:
KPrintf("Load address misaligned");
break;
case CAUSE_FAULT_LOAD:
KPrintf("Load access fault");
break;
case CAUSE_MISALIGNED_STORE:
KPrintf("Store address misaligned");
break;
case CAUSE_FAULT_STORE:
KPrintf("Store access fault");
break;
case CAUSE_SUPERVISOR_ECALL:
KPrintf("Environment call from S-mode");
break;
case CAUSE_HYPERVISOR_ECALL:
KPrintf("Environment call from H-mode");
break;
default:
KPrintf("Uknown exception : %08lX", cause);
break;
}
__print:
KPrintf("\n");
//PrintStackFrame(sp);
KPrintf("exception pc => 0x%08x\n", epc);
KPrintf("current thread: %.*s\n", NAME_NUM_MAX, tid->task_base_info.name);
#ifdef TOOL_SHELL
ShowTask();
#endif
while(RET_TRUE);
}
}
return epc;
}
#else
uintptr_t HandleTrap(uintptr_t mcause, uintptr_t epc, uintptr_t * sp)
{
int cause = mcause & MCAUSE_CAUSE ;
if (mcause & MCAUSE_INT)
{
isrManager.done->incCounter();
switch (cause)
{
case IRQ_M_EXT:
HandleIrqMExt(mcause, epc);
break;
case IRQ_M_TIMER:
CLINT_MTIMECMP_ADDR = CLINT_MTIME_ADDR + TICK;
TickIsr();
break;
}
isrManager.done->decCounter();
}
else
{
KTaskDescriptorType tid;
extern long ShowTask();
DISABLE_INTERRUPT();
tid = GetKTaskDescriptor();
KPrintf("\nException:\n");
switch (cause)
{
case CAUSE_MISALIGNED_FETCH:
KPrintf("Instruction address misaligned");
break;
case CAUSE_FAULT_FETCH:
KPrintf("Instruction access fault");
break;
case CAUSE_ILLEGAL_INSTRUCTION:
KPrintf("Illegal instruction");
break;
case CAUSE_BREAKPOINT:
KPrintf("Breakpoint");
break;
case CAUSE_MISALIGNED_LOAD:
KPrintf("Load address misaligned");
break;
case CAUSE_FAULT_LOAD:
KPrintf("Load access fault");
break;
case CAUSE_MISALIGNED_STORE:
KPrintf("Store address misaligned");
break;
case CAUSE_FAULT_STORE:
KPrintf("Store access fault");
break;
case CAUSE_SUPERVISOR_ECALL:
KPrintf("Environment call from S-mode");
break;
case CAUSE_HYPERVISOR_ECALL:
KPrintf("Environment call from H-mode");
break;
default:
KPrintf("Uknown exception : %08lX", cause);
break;
}
KPrintf("\n");
//PrintStackFrame(sp);
KPrintf("exception pc => 0x%08x\n", epc);
KPrintf("current thread: %.*s\n", NAME_NUM_MAX, tid->task_base_info.name);
#ifdef TOOL_SHELL
ShowTask();
#endif
while (RET_TRUE);
}
return epc;
}
#endif

23
arch/risc-v/fe310/tick.c Normal file
View File

@@ -0,0 +1,23 @@
/*
* 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 <encoding.h>
#include <clint.h>
#include <xs_ktick.h>
static volatile unsigned long tick_cycles = 0;
int TickIsr(void)
{
TickAndTaskTimesliceUpdate();
return 0;
}