[参考译文] TMS320C6678：在共享区域中创建的堆与在 RTSC 配置文件中设置的堆不同

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1046236/tms320c6678-heap-created-in-a-shared-region-not-the-same-as-being-set-in-a-rtsc-config-file

你(们)好  

我有一个共享区域、在 RTSC 配置文件中以静态方式创建了4个条目。

Program.global.CFG_SL2_IPC_MSG_BASE       = 0x0c000000;
Program.global.CFG_SL2_IPC_MSG_SIZE       = 0x00010000;
Program.global.CFG_SL2_BASE               = 0x0c010000;
Program.global.CFG_SL2_SIZE               = 0x00370000;

Program.global.CFG_DDR_HEAP_BASE  = 0x81000000;
Program.global.CFG_DDR_HEAP_SIZE  = 0x45200000;   // => 1106 MB
Program.global.CFG_DDR_NONCACHED_HEAP_BASE = 0x80100000;
Program.global.CFG_DDR_NONCACHED_HEAP_SIZE = 0x00800000; // 8 MB

var sharedRegion = xdc.useModule('ti.sdo.ipc.SharedRegion');
sharedRegion.translate = false;
sharedRegion.numEntries = 4;

/* Shared Memory base address and length */
var SHAREDMEMSL2        = Program.global.CFG_SL2_IPC_MSG_BASE;
var SHAREDMEMSL2SIZE    = Program.global.CFG_SL2_IPC_MSG_SIZE;

/* SL2 Shared Memory base address and length */
sharedRegion.setEntryMeta(Program.global.SL2HEAPID,
    { base: SHAREDMEMSL2,
      len:  SHAREDMEMSL2SIZE,
      ownerProcId: 0,
      isValid: true,
      cacheLineSize: 64, /* need 64B to get pass IPC_attach phase, and it is okay with our 256B message size in our code */
      createHeap: true,
      name: "SL2_IPC",
    });

/* Shared Memory base address and length */
var SHAREDMEM2SL2        = Program.global.CFG_SL2_BASE;
var SHAREDMEM2SL2SIZE    = Program.global.CFG_SL2_SIZE;

/* SL2 Shared Memory base address and length */
sharedRegion.setEntryMeta(Program.global.SL2HEAP2ID,
    { base: SHAREDMEM2SL2,
      len:  SHAREDMEM2SL2SIZE,
      ownerProcId: 0,
      isValid: true,
      cacheLineSize: 64, /* L1 cache line size: 64B */
      createHeap: true,
      name: "SL2_HEAP",
    });

/* DDR Shared Memory base address and length */
var SHAREDMEMDDR           = Program.global.CFG_DDR_HEAP_BASE;
var SHAREDMEMSIZEDDR       = Program.global.CFG_DDR_HEAP_SIZE;
sharedRegion.setEntryMeta(Program.global.DDRHEAPID,
    { base: SHAREDMEMDDR,
      len:  SHAREDMEMSIZEDDR,
      ownerProcId: 0,
      isValid: true,
      cacheLineSize: 128, /* L2 cache line size: 128B */
      createHeap: true,
      cacheEnable: true, /*This should reflect the cacheability of memory region. This does NOT set the cacheability*/
      name: "DDR_HEAP",
    });

/* Non-cacheable DDR Shared Memory base address and length */
var SHAREDMEM_DDRNONCACHEABLE = Program.global.CFG_DDR_NONCACHED_HEAP_BASE;
var SHAREDMEMSIZE_DDRNONCACHEABLE = Program.global.CFG_DDR_NONCACHED_HEAP_SIZE;
sharedRegion.setEntryMeta(Program.global.DDRNONCACHED_HEAPID,
    { base: SHAREDMEM_DDRNONCACHEABLE,
      len:  SHAREDMEMSIZE_DDRNONCACHEABLE,
      ownerProcId: 0,
      isValid: true,
      cacheLineSize: 128, /* L2 cache line size: 128B */
      createHeap: true,
      cacheEnable: false, /*This should reflect the cacheability of memory region. This does NOT set the cacheability*/
      name: "DDR_NONCACHED_HEAP",
    });

在运行时、  使用 SharedRegion_getEntry()、SharedRegion_getHeap ()和 Memory_getStats()对每个区域 ID 查询条目和堆统计数据。 下表列出了每个区域 ID 的条目和堆统计值。  

对于每个区域 id、堆统计数据 totalSize 是 条目中设置的长度的两倍。 我假设 entry.len 的单位(8位字节)与 totalSize 相同。 在我的构建中、 库版本如下在 PROCESSOR-SDK-RTOS-C667X 中指定  06.03.00.106。

• Code Composer Studio v9.3
• C667x PDK 2.0.16
• DSPLIB C66x 3.4.04
• IPC 3.50.4.08
• MATHLIB 3.1.2.4
• SYS/BIOS 6.76.3.01
• 系统分析器(UIA 目标) 2.30.1.02
• xDAIS 7.24.0.04
• XDCtools 3.55.2.22
• TI C6000编译器8.3.2

使用旧版 SDK ti-processor-sdk-rtos-c667x-evm-03.03.00.04构建时不会出现此类问题 。 感谢您的任何帮助。

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