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支持obj map & 与更多用户态接口支持

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This commit is contained in:
zhangzheng
2023-08-28 23:54:33 +08:00
parent dadfda135c
commit 24ed049af7
16 changed files with 214 additions and 33 deletions
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45
mkrtos_knl/knl/task.c
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@@ -4,14 +4,34 @@
#include "init.h"
#include "map.h"
#include "thread.h"
#include "misc.h"
enum task_op_code
{
TASK_OBJ_MAP,
TASK_OBJ_UNMAP,
TASK_ALLOC_RAM_BASE,
};
static bool_t task_put(kobject_t *kobj);
static void task_release_stage1(kobject_t *kobj);
static void task_release_stage2(kobject_t *kobj);
int task_alloc_base_ram(task_t *tk, ram_limit_t *lim, size_t size)
{
if (tk->mm_space.mm_block)
{
return -EACCES;
}
// 申请init的ram内存
void *ram = mpu_ram_alloc(&tk->mm_space, lim, size);
if (!ram)
{
printk("申请进程内存失败.\n");
return -ENOMEM;
}
mm_space_set_ram_block(&tk->mm_space, ram, size);
return 0;
}
static msg_tag_t task_syscall_func(kobject_t *kobj, ram_limit_t *ram, entry_frame_t *f)
{
task_t *cur_task = thread_get_current_task();
@@ -26,8 +46,20 @@ static msg_tag_t task_syscall_func(kobject_t *kobj, ram_limit_t *ram, entry_fram
switch (tag.type)
{
case TASK_OBJ_MAP:
/* code */
break;
{
kobject_t *source_kobj = obj_space_lookup_kobj(&cur_task->obj_space, f->r[1]);
if (!kobj)
{
tag = msg_tag_init3(0, 0, -ENOENT);
break;
}
int ret = obj_map(&tag_task->obj_space, f->r[2], source_kobj, ram);
tag = msg_tag_init3(0, 0, ret);
}
break;
case TASK_OBJ_UNMAP:
{
kobject_t *del_kobj;
@@ -41,6 +73,12 @@ static msg_tag_t task_syscall_func(kobject_t *kobj, ram_limit_t *ram, entry_fram
cpulock_set(status);
}
break;
case TASK_ALLOC_RAM_BASE:
{
tag = msg_tag_init3(0, 0, task_alloc_base_ram(tag_task, tag_task->lim, f->r[1]));
f->r[1] = (umword_t)(tag_task->mm_space.mm_block);
}
break;
default:
break;
}
@@ -63,6 +101,8 @@ void task_init(task_t *task, ram_limit_t *ram, int is_knl)
task->kobj.put_func = task_put;
task->kobj.stage_1_func = task_release_stage1;
task->kobj.stage_2_func = task_release_stage2;
mm_space_add(&task->mm_space, KNL_TEXT, 64 * 1024 * 1024, REGION_RO); // TODO:
}
static bool_t task_put(kobject_t *kobj)
@@ -85,6 +125,7 @@ static void task_release_stage2(kobject_t *kobj)
kobj_del_list_t kobj_list;
task_t *cur_tk = thread_get_current_task();
mm_limit_free_align(tk->lim, tk->mm_space.mm_block, tk->mm_space.mm_block_size);
mm_limit_free(tk->lim, tk);
if (cur_tk == tk)
{