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[rt-smart] PV_OFFSET as a variable (#6904) 

* [rt-smart/mem] remove pv_offset

* [rt-smart] list kernel space command

* [rt-smart] restore ioremap region

* [revert] restore kernel space isolation

* [rt-smart/pv_off] code format

* [rt-smart] add get_pvoff()

* [pvoffset] pvoff as constant for C codes

* [pvoff] pvoff as interfaces
This commit is contained in:
Shell 2023-02-14 23:08:32 +08:00 committed by GitHub
parent fc1aced665
commit 2d09749086
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GPG Key ID: 4AEE18F83AFDEB23
23 changed files with 122 additions and 64 deletions
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1
bsp/allwinner/d1s/.config
View File

@ -92,7 +92,6 @@ CONFIG_RT_USING_CACHE=y
# CONFIG_RT_USING_CPU_FFS is not set
CONFIG_ARCH_MM_MMU=y
CONFIG_KERNEL_VADDR_START=0x40000000
CONFIG_PV_OFFSET=0x0
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_RISCV64=y

2
bsp/allwinner/d1s/SConstruct
View File

@ -94,7 +94,7 @@ stack_size = 4096
stack_lds = open('link_stacksize.lds', 'w')
if GetDepend('__STACKSIZE__'): stack_size = GetDepend('__STACKSIZE__')
stack_lds.write('__STACKSIZE__ = %d;' % stack_size)
stack_lds.write('__STACKSIZE__ = %d;\n' % stack_size)
stack_lds.close()
# make a building

4
bsp/allwinner/d1s/board/board.c
View File

@ -44,8 +44,8 @@ rt_region_t init_page_region =
extern volatile rt_size_t MMUTable[__SIZE(VPN2_BIT)] __attribute__((aligned(4 * 1024)));
struct mem_desc platform_mem_desc[] = {
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x4000000 - 1, KERNEL_VADDR_START + PV_OFFSET, NORMAL_MEM},
{0x1000, 0x3ffff000 - 1, 0x1000 + PV_OFFSET, DEVICE_MEM},
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x4000000 - 1, (rt_size_t)ARCH_MAP_FAILED, NORMAL_MEM},
{0x1000, 0x3ffff000 - 1, (rt_size_t)ARCH_MAP_FAILED, DEVICE_MEM},
};
#define NUM_MEM_DESC (sizeof(platform_mem_desc) / sizeof(platform_mem_desc[0]))

8
bsp/allwinner/d1s/board/board.h
View File

@ -17,14 +17,14 @@
extern unsigned int __bss_start;
extern unsigned int __bss_end;
#define RAM_SIZE (64 * 1024 * 1024)
#define RAM_BASE (0x40000000)
#define RAM_END (RAM_BASE + RAM_SIZE - PV_OFFSET)
#define RAM_SIZE (64 * 1024 * 1024)
#define RAM_BASE (0x40000000)
#define RAM_END_VADDR (KERNEL_VADDR_START + RAM_SIZE)
#define RT_HW_HEAP_BEGIN ((void *)&__bss_end)
#define RT_HW_HEAP_END ((void *)(((rt_size_t)RT_HW_HEAP_BEGIN) + 16 * 1024 * 1024))
#define RT_HW_PAGE_START (RT_HW_HEAP_END)
#define RT_HW_PAGE_END ((void *)RAM_END)
#define RT_HW_PAGE_END ((void *)RAM_END_VADDR)
void rt_hw_board_init(void);
void rt_init_user_mem(struct rt_thread *thread, const char *name, unsigned long *entry);

1
bsp/allwinner/d1s/rtconfig.h
View File

@ -55,7 +55,6 @@
#define RT_USING_CACHE
#define ARCH_MM_MMU
#define KERNEL_VADDR_START 0x40000000
#define PV_OFFSET 0x0
#define ARCH_RISCV
#define ARCH_RISCV64

2
bsp/qemu-vexpress-a9/drivers/board.c
View File

@ -26,7 +26,7 @@
#ifdef RT_USING_SMART
struct mem_desc platform_mem_desc[] = {
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x0fffffff, KERNEL_VADDR_START + PV_OFFSET, NORMAL_MEM}
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x0fffffff, (rt_size_t)ARCH_MAP_FAILED, NORMAL_MEM}
};
#else
struct mem_desc platform_mem_desc[] = {

4
bsp/qemu-virt64-aarch64/drivers/board.c
View File

@ -11,7 +11,6 @@
* add smp ipi init
*/
#include "mm_aspace.h"
#include <rthw.h>
#include <rtthread.h>
#include <mmu.h>
@ -21,6 +20,7 @@
#endif
#include "board.h"
#include <mm_aspace.h>
#include <mm_page.h>
#include <interrupt.h>
@ -33,7 +33,7 @@
#ifdef RT_USING_SMART
struct mem_desc platform_mem_desc[] = {
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x0fffffff, KERNEL_VADDR_START + PV_OFFSET, NORMAL_MEM}
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x0fffffff, (rt_size_t)ARCH_MAP_FAILED, NORMAL_MEM}
};
#else

1
bsp/qemu-virt64-aarch64/drivers/board.h
View File

@ -26,7 +26,6 @@ extern unsigned char __bss_end;
#else
#define HEAP_END ((void *)HEAP_BEGIN + 64 * 1024 * 1024)
#define KERNEL_VADDR_START 0x40000000
#define PV_OFFSET 0
#endif
void rt_hw_board_init(void);

2
bsp/qemu-virt64-riscv/SConstruct
View File

@ -31,7 +31,7 @@ stack_size = 4096
stack_lds = open('link_stacksize.lds', 'w')
if GetDepend('__STACKSIZE__'): stack_size = GetDepend('__STACKSIZE__')
stack_lds.write('__STACKSIZE__ = %d;' % stack_size)
stack_lds.write('__STACKSIZE__ = %d;\n' % stack_size)
stack_lds.close()
# make a building

10
bsp/qemu-virt64-riscv/driver/board.c
View File

@ -35,7 +35,7 @@ rt_region_t init_page_region = {(rt_size_t)RT_HW_PAGE_START, (rt_size_t)RT_HW_PA
extern size_t MMUTable[];
struct mem_desc platform_mem_desc[] = {
{KERNEL_VADDR_START, KERNEL_VADDR_START + 0x10000000 - 1, KERNEL_VADDR_START + PV_OFFSET, NORMAL_MEM},
{KERNEL_VADDR_START, (rt_size_t)RT_HW_PAGE_END - 1, (rt_size_t)ARCH_MAP_FAILED, NORMAL_MEM},
};
#define NUM_MEM_DESC (sizeof(platform_mem_desc) / sizeof(platform_mem_desc[0]))
@ -54,11 +54,17 @@ void primary_cpu_entry(void)
#define IOREMAP_SIZE (1ul << 30)
#ifndef ARCH_KERNEL_IN_HIGH_VA
#define IOREMAP_VEND USER_VADDR_START
#else
#define IOREMAP_VEND 0ul
#endif
void rt_hw_board_init(void)
{
#ifdef RT_USING_SMART
/* init data structure */
rt_hw_mmu_map_init(&rt_kernel_space, (void *)(USER_VADDR_START - IOREMAP_SIZE), IOREMAP_SIZE, (rt_size_t *)MMUTable, 0);
rt_hw_mmu_map_init(&rt_kernel_space, (void *)(IOREMAP_VEND - IOREMAP_SIZE), IOREMAP_SIZE, (rt_size_t *)MMUTable, PV_OFFSET);
/* init page allocator */
rt_page_init(init_page_region);

17
components/mm/mm_aspace.c
View File

@ -31,10 +31,6 @@
#include <mmu.h>
#include <tlb.h>
#ifndef RT_USING_SMART
#define PV_OFFSET 0
#endif
static void _aspace_unmap(rt_aspace_t aspace, void *addr, rt_size_t length);
static void *_find_free(rt_aspace_t aspace, void *prefer, rt_size_t req_size,
void *limit_start, rt_size_t limit_size,
@ -488,6 +484,7 @@ int rt_aspace_map_phy_static(rt_aspace_t aspace, rt_varea_t varea,
varea->start = hint->prefer;
varea->size = hint->map_size;
hint->flags |= MMF_MAP_FIXED;
LOG_D("%s: start %p size %p phy at %p", __func__, varea->start, varea->size, pa_off << MM_PAGE_SHIFT);
err = _mm_aspace_map_phy(aspace, varea, hint, attr, pa_off, ret_va);
}
else
@ -743,8 +740,16 @@ int rt_aspace_traversal(rt_aspace_t aspace,
static int _dump(rt_varea_t varea, void *arg)
{
rt_kprintf("%s[%p - %p]\n", varea->mem_obj->get_name(varea), varea->start,
varea->start + varea->size);
if (varea->mem_obj && varea->mem_obj->get_name)
{
rt_kprintf("[%p - %p] %s\n", varea->start, varea->start + varea->size,
varea->mem_obj->get_name(varea));
}
else
{
rt_kprintf("[%p - %p] phy-map\n", varea->start, varea->start + varea->size);
rt_kprintf("\t\\_ paddr = %p\n", varea->offset << MM_PAGE_SHIFT);
}
return 0;
}

5
components/mm/mm_aspace.h
View File

@ -20,6 +20,7 @@
#define MM_PAGE_SHIFT 12
#define MM_PA_TO_OFF(pa) ((uintptr_t)(pa) >> MM_PAGE_SHIFT)
#define PV_OFFSET (rt_kmem_pvoff())
#ifndef RT_USING_SMP
typedef rt_spinlock_t mm_spinlock;
@ -201,4 +202,8 @@ void rt_varea_free_pages(rt_varea_t varea);
void rt_varea_offload_page(rt_varea_t varea, void *vaddr, rt_size_t size);
rt_ubase_t rt_kmem_pvoff(void);
void rt_kmem_pvoff_set(rt_ubase_t pvoff);
#endif /* __MM_ASPACE_H__ */

32
components/mm/mm_kmem.c Normal file
View File

@ -0,0 +1,32 @@
/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-11-14 WangXiaoyao the first version
*/
#include "mm_aspace.h"
#include "mm_private.h"
static void list_kernel_space(void)
{
rt_aspace_print_all(&rt_kernel_space);
}
MSH_CMD_EXPORT(list_kernel_space, List varea in kernel space);
void rt_kmem_list_varea(void) __attribute__((alias("list_kernel_space")));
static rt_ubase_t rt_pv_offset;
rt_ubase_t rt_kmem_pvoff(void)
{
return rt_pv_offset;
}
void rt_kmem_pvoff_set(rt_ubase_t pvoff)
{
rt_pv_offset = pvoff;
}

2
components/mm/mm_page.c
View File

@ -40,8 +40,6 @@ CT_ASSERT(order_huge_pg, RT_PAGE_MAX_ORDER > ARCH_PAGE_SHIFT - 2);
CT_ASSERT(size_width, sizeof(rt_size_t) == sizeof(rt_size_t));
#endif /* ARCH_CPU_64BIT */
#else
#define PV_OFFSET 0
#endif /* RT_USING_SMART */
static rt_size_t init_mpr_align_start;

7
libcpu/Kconfig
View File

@ -87,13 +87,6 @@ config KERNEL_VADDR_START
default 0x80000000 if ARCH_RISCV
depends on ARCH_MM_MMU
config PV_OFFSET
hex "The offset of kernel physical address and virtural address"
default 0x1000040000000 if ARCH_ARMV8
default 0xa0000000 if ARCH_ARM
default 0x0 if ARCH_RISCV
depends on ARCH_MM_MMU
config RT_IOREMAP_LATE
bool "Support to create IO mapping in the kernel address space after system initlalization."
default n

9
libcpu/aarch64/common/mmu.c
View File

@ -309,6 +309,9 @@ void rt_hw_mmu_setup(rt_aspace_t aspace, struct mem_desc *mdesc, int desc_nr)
mdesc->vaddr_start + 1,
.prefer = (void *)mdesc->vaddr_start};
if (mdesc->paddr_start == (rt_size_t)ARCH_MAP_FAILED)
mdesc->paddr_start = mdesc->vaddr_start + PV_OFFSET;
rt_aspace_map_phy_static(aspace, &mdesc->varea, &hint, attr,
mdesc->paddr_start >> MM_PAGE_SHIFT, &err);
mdesc++;
@ -656,10 +659,14 @@ int rt_hw_mmu_control(struct rt_aspace *aspace, void *vaddr, size_t size,
return err;
}
void rt_hw_mmu_setup_early(unsigned long *tbl0, unsigned long *tbl1,
void rt_hw_mem_setup_early(unsigned long *tbl0, unsigned long *tbl1,
unsigned long size, unsigned long pv_off)
{
int ret;
/* setup pv off */
rt_kmem_pvoff_set(pv_off);
unsigned long va = KERNEL_VADDR_START;
unsigned long count = (size + ARCH_SECTION_MASK) >> ARCH_SECTION_SHIFT;
unsigned long normal_attr = MMU_MAP_CUSTOM(MMU_AP_KAUN, NORMAL_MEM);

2
libcpu/aarch64/common/mmu.h
View File

@ -74,7 +74,7 @@ struct mem_desc
struct rt_aspace;
void rt_hw_mmu_ktbl_set(unsigned long tbl);
void rt_hw_mmu_setup_early(unsigned long *tbl0, unsigned long *tbl1,
void rt_hw_mem_setup_early(unsigned long *tbl0, unsigned long *tbl1,
unsigned long size, unsigned long pv_off);
void rt_hw_mmu_setup(struct rt_aspace *aspace, struct mem_desc *mdesc,
int desc_nr);

1
libcpu/aarch64/common/trap.c
View File

@ -45,6 +45,7 @@ void check_user_fault(struct rt_hw_exp_stack *regs, uint32_t pc_adj, char *info)
#ifdef LWP_USING_CORE_DUMP
lwp_core_dump(regs, pc_adj);
#endif
backtrace((unsigned long)regs->pc, (unsigned long)regs->x30, (unsigned long)regs->x29);
sys_exit(-1);
}
}

44
libcpu/aarch64/cortex-a/entry_point.S
View File

@ -78,12 +78,12 @@ __start:
eret /* exception return. from EL2. continue from .L__in_el1 */
.macro GET_PHY reg, symbol
adrp \reg, \symbol
add \reg, \reg, #:lo12:\symbol
.endm
.L__in_el1:
#ifdef RT_USING_LWP
ldr x9, =PV_OFFSET
#else
mov x9, #0
#endif
mov sp, x1 /* in EL1. Set sp to _start */
/* Set CPACR_EL1 (Architecture Feature Access Control Register) to avoid trap from SIMD or float point instruction */
@ -91,15 +91,13 @@ __start:
msr cpacr_el1, x1
/* clear bss */
adrp x1, __bss_start /* get bss start address */
add x1, x1, #:lo12:__bss_start
adrp x2, __bss_end
add x1, x1, #:lo12:__bss_end
sub x2, x2, x1 /* get bss size */
GET_PHY x1, __bss_start
GET_PHY x2, __bss_end
sub x2, x2, x1 /* get bss size */
and x3, x2, #7 /* x3 is < 7 */
and x3, x2, #7 /* x3 is < 7 */
ldr x4, =~0x7
and x2, x2, x4 /* mask ~7 */
and x2, x2, x4 /* mask ~7 */
.L__clean_bss_loop:
cbz x2, .L__clean_bss_loop_1
@ -116,7 +114,7 @@ __start:
.L__jump_to_entry: /* jump to C code, should not return */
bl mmu_tcr_init
adr x1, __start
adr x1, __start /* install early page table */
ldr x0, =~0x1fffff
and x0, x1, x0
add x1, x0, #0x1000
@ -125,11 +123,13 @@ __start:
msr ttbr1_el1, x1
dsb sy
ldr x2, =0x40000000 /* map 1G memory for kernel space */
#ifdef RT_USING_LWP
ldr x3, =PV_OFFSET
#ifdef RT_USING_SMART
ldr x2, =__start
GET_PHY x3, __start
sub x3, x3, x2
#endif
bl rt_hw_mmu_setup_early
ldr x2, =0x40000000 /* map 1G memory for kernel space */
bl rt_hw_mem_setup_early
ldr x30, =after_mmu_enable /* set LR to after_mmu_enable function, it's a v_addr */
@ -152,7 +152,7 @@ __start:
ret
after_mmu_enable:
#ifdef RT_USING_LWP
#ifdef RT_USING_SMART
mrs x0, tcr_el1 /* disable ttbr0, only using kernel space */
orr x0, x0, #(1 << 7)
msr tcr_el1, x0
@ -172,7 +172,7 @@ after_mmu_enable:
* secondary cpu
*/
.globl _secondary_cpu_entry
.global _secondary_cpu_entry
_secondary_cpu_entry:
bl rt_hw_cpu_id_set
adr x1, __start
@ -225,10 +225,6 @@ _secondary_cpu_entry:
eret /* exception return. from EL2. continue from .L__in_el1 */
.L__in_el1_cpux:
adr x19, .L__in_el1_cpux
ldr x8, =.L__in_el1_cpux
sub x19, x19, x8 /* get PV_OFFSET */
mrs x0, tpidr_el1
/* each cpu init stack is 8k */
sub x1, x1, x0, lsl #13
@ -244,7 +240,7 @@ _secondary_cpu_entry:
bl mmu_tcr_init
adr x1, __start
adr x1, __start /* GET & setup early page table */
ldr x0, =~0x1fffff
and x0, x1, x0
add x1, x0, #0x1000

3
libcpu/arm/cortex-a/mmu.c
View File

@ -24,7 +24,6 @@
#include "ioremap.h"
#else
#define KERNEL_VADDR_START 0
#define PV_OFFSET 0
#endif
/* level1 page table, each entry for 1MB memory. */
@ -59,6 +58,8 @@ void rt_hw_init_mmu_table(struct mem_desc *mdesc, rt_uint32_t size)
/* set page table */
for(; size > 0; size--)
{
if (mdesc->paddr_start == (rt_uint32_t)ARCH_MAP_FAILED)
mdesc->paddr_start = mdesc->vaddr_start + PV_OFFSET;
rt_hw_mmu_setmtt(mdesc->vaddr_start, mdesc->vaddr_end,
mdesc->paddr_start, mdesc->attr);
mdesc++;

20
libcpu/arm/cortex-a/start_gcc.S
View File

@ -102,7 +102,10 @@ continue:
isb
#ifdef RT_USING_SMART
ldr r5, =PV_OFFSET
/* load r5 with PV_OFFSET */
ldr r7, =_reset
adr r5, _reset
sub r5, r5, r7
mov r7, #0x100000
sub r7, #1
@ -166,6 +169,9 @@ bss_loop:
strlo r0,[r1],#4 /* clear 4 bytes */
blo bss_loop /* loop until done */
mov r0, r5
bl rt_kmem_pvoff_set
#ifdef RT_USING_SMP
mrc p15, 0, r1, c1, c0, 1
mov r0, #(1<<6)
@ -173,7 +179,10 @@ bss_loop:
mcr p15, 0, r1, c1, c0, 1 /* enable smp */
#endif
/* initialize the mmu table and enable mmu */
/**
* void rt_hw_init_mmu_table(struct mem_desc *mdesc, rt_uint32_t size)
* initialize the mmu table and enable mmu
*/
ldr r0, =platform_mem_desc
ldr r1, =platform_mem_desc_size
ldr r1, [r1]
@ -595,16 +604,19 @@ vector_resv:
bl rt_hw_trap_resv
b .
#ifdef RT_USING_SMP
.global rt_hw_clz
rt_hw_clz:
clz r0, r0
bx lr
#ifdef RT_USING_SMP
.global rt_secondary_cpu_entry
rt_secondary_cpu_entry:
#ifdef RT_USING_SMART
ldr r5, =PV_OFFSET
ldr r0, =_reset
adr r5, _reset
sub r5, r5, r0
ldr lr, =after_enable_mmu_n
ldr r0, =init_mtbl

4
libcpu/risc-v/t-head/c906/mmu.c
View File

@ -30,7 +30,6 @@
#endif
#ifndef RT_USING_SMART
#define PV_OFFSET 0
#define USER_VADDR_START 0
#endif
@ -533,6 +532,9 @@ void rt_hw_mmu_setup(rt_aspace_t aspace, struct mem_desc *mdesc, int desc_nr)
mdesc->vaddr_start + 1,
.prefer = (void *)mdesc->vaddr_start};
if (mdesc->paddr_start == (rt_size_t)ARCH_MAP_FAILED)
mdesc->paddr_start = mdesc->vaddr_start + PV_OFFSET;
rt_aspace_map_phy_static(aspace, &mdesc->varea, &hint, attr,
mdesc->paddr_start >> MM_PAGE_SHIFT, &err);
mdesc++;

5
libcpu/risc-v/virt64/mmu.c
View File

@ -25,12 +25,12 @@
#include <tlb.h>
#ifdef RT_USING_SMART
#include <board.h>
#include <ioremap.h>
#include <lwp_user_mm.h>
#endif
#ifndef RT_USING_SMART
#define PV_OFFSET 0
#define USER_VADDR_START 0
#endif
@ -476,6 +476,9 @@ void rt_hw_mmu_setup(rt_aspace_t aspace, struct mem_desc *mdesc, int desc_nr)
mdesc->vaddr_start + 1,
.prefer = (void *)mdesc->vaddr_start};
if (mdesc->paddr_start == (rt_size_t)ARCH_MAP_FAILED)
mdesc->paddr_start = mdesc->vaddr_start + PV_OFFSET;
rt_aspace_map_phy_static(aspace, &mdesc->varea, &hint, attr,
mdesc->paddr_start >> MM_PAGE_SHIFT, &err);
mdesc++;