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Linux_SDK_V1.4.2

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Signed-off-by: thead_admin <occ_thead@service.alibaba.com>
This commit is contained in:
thead_admin
2023-12-24 02:32:32 +00:00
committed by Han Gao
parent c20ad6292d
commit a9b3178041
164 changed files with 1942 additions and 24749 deletions
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82
arch/riscv/include/asm/assembler.h Normal file
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@@ -0,0 +1,82 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2023 StarFive Technology Co., Ltd.
*
* Author: Jee Heng Sia <jeeheng.sia@starfivetech.com>
*/
#ifndef __ASSEMBLY__
#error "Only include this from assembly code"
#endif
#ifndef __ASM_ASSEMBLER_H
#define __ASM_ASSEMBLER_H
#include <asm/asm.h>
#include <asm/asm-offsets.h>
#include <asm/csr.h>
/*
* suspend_restore_csrs - restore CSRs
*/
.macro suspend_restore_csrs
REG_L t0, (SUSPEND_CONTEXT_REGS + PT_EPC)(a0)
csrw CSR_EPC, t0
REG_L t0, (SUSPEND_CONTEXT_REGS + PT_STATUS)(a0)
csrw CSR_STATUS, t0
REG_L t0, (SUSPEND_CONTEXT_REGS + PT_BADADDR)(a0)
csrw CSR_TVAL, t0
REG_L t0, (SUSPEND_CONTEXT_REGS + PT_CAUSE)(a0)
csrw CSR_CAUSE, t0
.endm
/*
* suspend_restore_regs - Restore registers (except A0 and T0-T6)
*/
.macro suspend_restore_regs
REG_L ra, (SUSPEND_CONTEXT_REGS + PT_RA)(a0)
REG_L sp, (SUSPEND_CONTEXT_REGS + PT_SP)(a0)
REG_L gp, (SUSPEND_CONTEXT_REGS + PT_GP)(a0)
REG_L tp, (SUSPEND_CONTEXT_REGS + PT_TP)(a0)
REG_L s0, (SUSPEND_CONTEXT_REGS + PT_S0)(a0)
REG_L s1, (SUSPEND_CONTEXT_REGS + PT_S1)(a0)
REG_L a1, (SUSPEND_CONTEXT_REGS + PT_A1)(a0)
REG_L a2, (SUSPEND_CONTEXT_REGS + PT_A2)(a0)
REG_L a3, (SUSPEND_CONTEXT_REGS + PT_A3)(a0)
REG_L a4, (SUSPEND_CONTEXT_REGS + PT_A4)(a0)
REG_L a5, (SUSPEND_CONTEXT_REGS + PT_A5)(a0)
REG_L a6, (SUSPEND_CONTEXT_REGS + PT_A6)(a0)
REG_L a7, (SUSPEND_CONTEXT_REGS + PT_A7)(a0)
REG_L s2, (SUSPEND_CONTEXT_REGS + PT_S2)(a0)
REG_L s3, (SUSPEND_CONTEXT_REGS + PT_S3)(a0)
REG_L s4, (SUSPEND_CONTEXT_REGS + PT_S4)(a0)
REG_L s5, (SUSPEND_CONTEXT_REGS + PT_S5)(a0)
REG_L s6, (SUSPEND_CONTEXT_REGS + PT_S6)(a0)
REG_L s7, (SUSPEND_CONTEXT_REGS + PT_S7)(a0)
REG_L s8, (SUSPEND_CONTEXT_REGS + PT_S8)(a0)
REG_L s9, (SUSPEND_CONTEXT_REGS + PT_S9)(a0)
REG_L s10, (SUSPEND_CONTEXT_REGS + PT_S10)(a0)
REG_L s11, (SUSPEND_CONTEXT_REGS + PT_S11)(a0)
.endm
/*
* copy_page - copy 1 page (4KB) of data from source to destination
* @a0 - destination
* @a1 - source
*/
.macro copy_page a0, a1
lui a2, 0x1
add a2, a2, a0
1 :
REG_L t0, 0(a1)
REG_L t1, SZREG(a1)
REG_S t0, 0(a0)
REG_S t1, SZREG(a0)
addi a0, a0, 2 * SZREG
addi a1, a1, 2 * SZREG
bne a2, a0, 1b
.endm
#endif /* __ASM_ASSEMBLER_H */

4
arch/riscv/include/asm/csr.h
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@@ -46,9 +46,9 @@
#define SR_XS_DIRTY _AC(0x00018000, UL)
#ifndef CONFIG_64BIT
#define SR_SD _AC(0x80000000, UL) /* FS/XS dirty */
#define SR_SD _AC(0x80000000, UL) /* FS|VS|XS dirty */
#else
#define SR_SD _AC(0x8000000000000000, UL) /* FS/XS dirty */
#define SR_SD _AC(0x8000000000000000, UL) /* FS|VS|XS dirty */
#endif
#ifdef CONFIG_COMPAT

5
arch/riscv/include/asm/kexec.h
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@@ -35,6 +35,11 @@ crash_setup_regs(struct pt_regs *newregs,
riscv_crash_save_regs(newregs);
}
#if defined(CONFIG_KEXEC) && defined(CONFIG_HIBERNATION)
extern bool crash_is_nosave(unsigned long pfn);
#else
static inline bool crash_is_nosave(unsigned long pfn) {return false; }
#endif
#define ARCH_HAS_KIMAGE_ARCH

2
arch/riscv/include/asm/page.h
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@@ -128,6 +128,8 @@ extern phys_addr_t __phys_addr_symbol(unsigned long x);
#define page_to_bus(page) (page_to_phys(page))
#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr)))
#define sym_to_pfn(x) __phys_to_pfn(__pa_symbol(x))
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) \
(((pfn) >= ARCH_PFN_OFFSET) && (((pfn) - ARCH_PFN_OFFSET) < max_mapnr))

2
arch/riscv/include/asm/pgtable.h
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@@ -521,6 +521,8 @@ extern uintptr_t dtb_early_pa;
void setup_bootmem(void);
void paging_init(void);
extern u64 satp_mode;
#define FIRST_USER_ADDRESS 0
/*

22
arch/riscv/include/asm/suspend.h
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@@ -21,6 +21,11 @@ struct suspend_context {
#endif
};
/*
* Used by hibernation core and cleared during resume sequence
*/
extern int in_suspend;
/* Low-level CPU suspend entry function */
int __cpu_suspend_enter(struct suspend_context *context);
@@ -33,4 +38,21 @@ int cpu_suspend(unsigned long arg,
/* Low-level CPU resume entry function */
int __cpu_resume_enter(unsigned long hartid, unsigned long context);
/* Used to save and restore the CSRs */
void suspend_save_csrs(struct suspend_context *context);
void suspend_restore_csrs(struct suspend_context *context);
/* Low-level API to support hibernation */
int swsusp_arch_suspend(void);
int swsusp_arch_resume(void);
int arch_hibernation_header_save(void *addr, unsigned int max_size);
int arch_hibernation_header_restore(void *addr);
int __hibernate_cpu_resume(void);
/* Used to resume on the CPU we hibernated on */
int hibernate_resume_nonboot_cpu_disable(void);
asmlinkage void hibernate_restore_image(unsigned long resume_satp, unsigned long satp_temp,
unsigned long cpu_resume);
asmlinkage int hibernate_core_restore_code(void);
#endif

2
arch/riscv/include/asm/switch_to.h
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@@ -75,7 +75,7 @@ static inline void __vstate_clean(struct pt_regs *regs)
static inline void vstate_save(struct task_struct *task,
struct pt_regs *regs)
{
if ((regs->status & SR_VS) == SR_VS_DIRTY) {
if ((regs->status & SR_VS) != SR_VS_OFF) {
__vstate_save(task);
__vstate_clean(regs);
}