TMS320C6678: 调用malloc引发的疑问。

malloc是从heap上申请内存，请查看map文件中.sysmem分配在哪段空间，即为malloc申请的内存空间。

我正在在看srio_loopback.c的例程，一部分代码如下

 t_buff = malloc(TARGET_SIZE);
    if(t_buff == NULL) {
        printf("Failed to alloc meory !\r\n");
        return -1;
    }

    /* read the DSP Core Number */
    core_num = CSL_chipReadReg(CSL_CHIP_DNUM);

    /* srio transmit test: srio write(NWRITE) --> srio read(NREAD) */
    ret = srio_test(core_num, (uint32_t)Convert_CoreLocal2GlobalAddr((uint32_t)t_buff), TARGET_SIZE, Srio_Ftype_WRITE);
    if(ret != 0) {
        printf("srio test occur error! \r\n");
        return -1;
    }
    
    
/**
 * @brief This function convert L2SARM inter address to global address
 *
 * @param addr L2SRAM inter address
 *
 * @return 32bit-addr
 */
uint32_t Convert_CoreLocal2GlobalAddr(uint32_t addr)
{
    uint32_t corenum;

    /* Get the core number. */
    corenum = CSL_chipReadReg(CSL_CHIP_DNUM);

    if((addr >= (uint32_t) 0x800000) && (addr <  (uint32_t) 0x880000)) {
        /* Compute the global address. */
        return ((1 << 28) | (corenum << 24) | (addr & 0x00ffffff));
    } else {
        return addr;
    }
}
    

t_buff在初始化（malloc）后，调用Convert_CoreLocal2GlobalAddr（），进行一次地址转换，为什么这样做？

难道每次malloc，申请到的内存都是L2中的？