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

/*
 * Copyright (c) 2006-2023, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2022-12-14     WangXiaoyao  the first version
 * 2023-03-20     WangXiaoyao  Format & add more testcases for API under mm_aspace.h
 */
#include "common.h"

/**
 * @brief Testing all APIs under components/mm
 */

void ioremap_tc(void);
void flag_tc(void);

#ifdef STANDALONE_TC
#define TC_ASSERT(expr)                                                        \
    ((expr)                                                                    \
         ? 0                                                                   \
         : rt_kprintf("AssertFault(%d): %s\n", __LINE__, RT_STRINGIFY(expr)))
#else
#define TC_ASSERT(expr) uassert_true(expr)
#endif

static rt_err_t utest_tc_init(void)
{
    return RT_EOK;
}

static rt_err_t utest_tc_cleanup(void)
{
    return RT_EOK;
}

#include "test_aspace_api.h"

static void testcase(void)
{
    aspace_tc();
    ioremap_tc();
    flag_tc();
}
UTEST_TC_EXPORT(testcase, "testcases.mm.api_tc", utest_tc_init, utest_tc_cleanup, 20);

void ioremap_tc(void)
{
    const size_t bufsz = 0x1000;
    void *paddr = (void *)rt_pages_alloc(rt_page_bits(bufsz)) + PV_OFFSET;
    int *vaddr;
    vaddr = rt_ioremap_cached(paddr, bufsz);
    if (vaddr)
    {
        TC_ASSERT(*vaddr == *(int *)(paddr - PV_OFFSET));

        rt_iounmap(vaddr);
        rt_pages_free(paddr - PV_OFFSET, 0);
    }
}

void flag_tc(void)
{
    size_t flags;

    flags = MMF_CREATE(MMF_MAP_FIXED, 0x4000);
    TC_ASSERT(MMF_GET_CNTL(flags) == (MMF_MAP_FIXED | MMF_REQUEST_ALIGN));
    TC_ASSERT((1 << MMF_GET_ALIGN(flags)) == 0x4000);

    flags = MMF_CREATE(MMF_MAP_FIXED, 0);
    TC_ASSERT(MMF_GET_CNTL(flags) == MMF_MAP_FIXED);
    TC_ASSERT(MMF_GET_ALIGN(flags) == 0);
}

#if 0

#define BUF_SIZE (4ul << 20)
static char ALIGN(BUF_SIZE) buf[BUF_SIZE];

void buddy_tc(void)
{
    size_t total, free;
    rt_page_get_info(&total, &free);

    rt_region_t region = {
        .start = (size_t)buf,
        .end = (size_t)buf + BUF_SIZE,
    };

    size_t new_total, new_free;
    rt_page_install(region);
    rt_page_get_info(&new_total, &new_free);
    TC_ASSERT(new_total - total == (BUF_SIZE >> ARCH_PAGE_SHIFT));
    TC_ASSERT(new_free > free);
}

void mmu_page_tc()
{
    mm_aspace_t aspace = ASPACE_NEW();
    size_t total, free;
    rt_page_get_info(&total, &free);
    rt_hw_mmu_map(aspace, (void *)0x3fffffffff, 0, ARCH_PAGE_SIZE,
                  MMU_MAP_K_RWCB);
    rt_hw_mmu_unmap(aspace, (void *)0x3fffffffff, ARCH_PAGE_SIZE);

    size_t new_total, new_free;
    rt_page_get_info(&new_total, &new_free);
    TC_ASSERT(new_free == free);
    mm_aspace_delete(aspace);
}
#endif