On 3/5/24 21:38, maobibo wrote:
Sorry, manual is updated already and we do not notice that still.
https://www.loongson.cn/uploads/images/2023102309132647981.%E9%BE%99%E8%8A%AF%E6%9E%B6%E6%9E%84%E5%8F%82%E8%80%83%E6%89%8B%E5%86%8C%E5%8D%B7%E4%B8%80_r1p10.pdf
It is Chinese web link, English manual is not updated. Here is English translation by
manual with instruction "lddir rd, rj, level"
If the bit[14:13] of the register rj is not equal to 0 and its bit[6] is 1, the value of
the register rj is a marked as HugePage page entries. In this case, the value from
register rj is written directly to register rd.
If the bit[14:13] of the register rj is equal to 0 and its bit[6] is 1, the value of the
register rj is an Hugepage table entry. In this case, replace the bit[14:13] of the
register RJ value with level[1:0], the val is written to the register rd.
If the bit[6] bit of register rj is 0, the value of the universal register rj is the page
table entry, it is physical address base page table. In this case, if the LDDIR command
is executed, the address will be refilled according to the TLB currently processed.
Retrieve the base address of the next-level page table and write it to the common register
rd.
We will remove temporary lddir_ps, and record page size with bit[14:13] in next
version.
Excellent, thank you for that translation.
r~
