rt-thread-official

mirror of https://github.com/RT-Thread/rt-thread.git synced 2025-01-26 13:47:23 +08:00

History

GuEe-GUI 2d026a316a [FEATURE/OFW] add address reverse/translate for DMA/CPU's address

DMA and CPU address view is different, we need to convert them:

    +--------+    +--------+  +---------+          +--------+
    |        |    |        |  |         |          |        |
    |  CPUs  |    |  DEV0  |  |  IOMMU  <----+     |  DEV1  |
    |        |    |        |  |         |    |     |        |
    +----+---+    +----+---+  +----+----+    |     +----+---+
         |             |           |         |          |
0x200000 |      0x1000 |    0x1000 |         |   0x8000 |
         |             |           |         |          |
         +-------------+-----------+         +----------+
         |
         |
+--------v----------------------------------------------------+
|                                                             |
|                          Address BUS                        |
|                                                             |
+-------------------------------------------------------------+

Signed-off-by: GuEe-GUI <2991707448@qq.com>

2024-09-13 17:33:29 -04:00

libfdt

【libfdt】replace tab with space

2023-07-06 11:02:13 +08:00

base.c

[FIXUP/OFW] Increase append child node's ref_count

2024-09-13 17:33:29 -04:00

fdt.c

[FEATURE/FDT] Add bootargs select in early

2024-09-13 17:33:29 -04:00

io.c

[FEATURE/OFW] add address reverse/translate for DMA/CPU's address