rt-thread/examples/utest/testcases/mm/aspace_map_expand.c

120 lines
3.4 KiB
C

/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-08-22 Shell test case for aspace_map with varea_expand
*/
#include "common.h"
#include "lwp_user_mm.h"
#include <mm_aspace.h>
#include <rtthread.h>
static size_t flags = MMF_PREFETCH | MMF_MAP_FIXED;
static size_t attr = MMU_MAP_K_RWCB;
static rt_mem_obj_t mem_obj = &rt_mm_dummy_mapper;
static char *ex_vaddr = (void *)0x100000000;
static size_t ex_offset = 1024;
static size_t map_size = 0x3000;
static size_t former_vsz;
static size_t former_vcount;
static struct rt_lwp *lwp;
static int _count_vsz(rt_varea_t varea, void *arg)
{
rt_base_t *pvsz = arg;
*pvsz += 1;
return 0;
}
static rt_base_t count_vcount(rt_aspace_t aspace)
{
rt_base_t vcount = 0;
rt_aspace_traversal(aspace, _count_vsz, &vcount);
return vcount;
}
static void test_map_varea_expand(void)
{
char *next_va;
size_t next_offset;
/* create an existed mapping */
next_va = ex_vaddr;
former_vsz = rt_aspace_count_vsz(lwp->aspace);
former_vcount = count_vcount(lwp->aspace);
utest_int_equal(
RT_EOK,
rt_aspace_map(lwp->aspace, (void *)&ex_vaddr, map_size, attr, flags, mem_obj, ex_offset)
);
uassert_true(next_va == ex_vaddr);
utest_int_equal(former_vsz + map_size, rt_aspace_count_vsz(lwp->aspace));
utest_int_equal(former_vcount + 1, count_vcount(lwp->aspace));
former_vsz += map_size;
former_vcount += 1;
/* test the RIGHT side expansion of varea by rt_aspace_map */
next_va = ex_vaddr + map_size;
next_offset = ex_offset + (map_size >> MM_PAGE_SHIFT);
utest_int_equal(
RT_EOK,
rt_aspace_map(lwp->aspace, (void *)&next_va, map_size, attr, flags, mem_obj, next_offset)
);
uassert_true(next_va == (char *)ex_vaddr + map_size);
utest_int_equal(former_vsz + map_size, rt_aspace_count_vsz(lwp->aspace));
utest_int_equal(former_vcount, count_vcount(lwp->aspace));
former_vsz += map_size;
/* test the LEFT side expansion of varea by rt_aspace_map */
next_va = ex_vaddr - map_size;
next_offset = ex_offset - (map_size >> MM_PAGE_SHIFT);
utest_int_equal(
RT_EOK,
rt_aspace_map(lwp->aspace, (void *)&next_va, map_size, attr, flags, mem_obj, next_offset)
);
uassert_true(next_va == ex_vaddr - map_size);
utest_int_equal(former_vsz + map_size, rt_aspace_count_vsz(lwp->aspace));
utest_int_equal(former_vcount, count_vcount(lwp->aspace));
former_vsz += map_size;
/* test the expand varea routine from rt_aspace_map_static */
utest_int_equal(RT_EOK, rt_aspace_unmap_range(lwp->aspace, next_va, 3 * map_size));
/* test the expand varea routine from rt_aspace_map_phy */
/* test the expand varea routine from rt_aspace_map_phy_static */
/* these 2 from another file */
}
static void aspace_map_tc(void)
{
CONSIST_HEAP(test_map_varea_expand());
}
static rt_err_t utest_tc_init(void)
{
lwp = lwp_create(0);
if (lwp)
lwp_user_space_init(lwp, 1);
else
return -RT_ENOMEM;
return RT_EOK;
}
static rt_err_t utest_tc_cleanup(void)
{
lwp_ref_dec(lwp);
return RT_EOK;
}
static void testcase(void)
{
UTEST_UNIT_RUN(aspace_map_tc);
}
UTEST_TC_EXPORT(testcase, "testcases.mm.aspace_map.varea_expand", utest_tc_init, utest_tc_cleanup, 10);