10.03.2021 06:36, Nicolin Chen пишет:
> This patch dumps all active mapping entries from pagetable
> to a debugfs directory named "mappings".
>
> Ataching an example:
>
> SWGROUP: hc
> ASID: 0
> reg: 0x250
> PTB_ASID: 0xe0080004
> as->pd_dma: 0x80004000
> {
> [1023] 0xf0080013 (1)
> {
> PTE RANGE PHYS IOVA SIZE ATTR
> #1023 - #1023 0x122e5e000 0xfffff000 0x1000 0x5
> }
> }
> Total PDE count: 1
> Total PTE count: 1
Addresses are 32bit on ARM32, please fix the formatting. The phys_addr_t
and dma_addr_t have special printk specifiers [1].
[1]
https://www.kernel.org/doc/html/latest/core-api/printk-formats.html?highlight=printk#physical-address-types-phys-addr-t
as->pd_dma: 0xc026e81b0000026c
{
[0] 0xf0082848 (1024)
{
PTE RANGE PHYS IOVA SIZE
ATTR
#0 - #15 0xc0f9fc40bfde0000 0x0 0x10000
0x7
#16 - #47 0xc0f9fc40bfdc0000 0x10000 0x20000
0x7
#48 - #111 0xc0f9fc40bfd80000 0x30000 0x40000
0x7
#112 - #239 0xc0f9fc40bfd00000 0x70000 0x80000
0x7
#240 - #495 0xc0f9fc40bfc00000 0xf0000 0x100000
0x7
#496 - #999 0xc0f9fc40bf400000 0x1f0000 0x1f8000
0x7
#1000 - #1000 0xc0f9fc40acc40000 0x3e8000 0x1000
0x7
#1001 - #1001 0xc0f9fc40bbb95000 0x3e9000 0x1000
0x7
#1002 - #1002 0xc0f9fc40bbb97000 0x3ea000 0x1000
0x7
#1003 - #1003 0xc0f9fc40bbb91000 0x3eb000 0x1000
0x7
#1004 - #1005 0xc0f9fc40bb455000 0x3ec000 0x2000
0x7
#1006 - #1006 0xc0f9fc40bee9c000 0x3ee000 0x1000
0x7
#1007 - #1007 0xc0f9fc40bed20000 0x3ef000 0x1000
0x7
#1008 - #1008 0xc0f9fc40bbde0000 0x3f0000 0x1000
0x7
#1009 - #1009 0xc0f9fc40be465000 0x3f1000 0x1000
0x7
#1010 - #1010 0xc0f9fc40bb505000 0x3f2000 0x1000
0x7
#1011 - #1011 0xc0f9fc40bdcb9000 0x3f3000 0x1000
0x7
#1012 - #1012 0xc0f9fc40bcdf9000 0x3f4000 0x1000
0x7
#1013 - #1013 0xc0f9fc40bb6ce000 0x3f5000 0x1000
0x7
#1014 - #1014 0xc0f9fc40bcd74000 0x3f6000 0x1000
0x7
#1015 - #1015 0xc0f9fc40bd0d0000 0x3f7000 0x1000
0x7
#1016 - #1016 0xc0f9fc40bb6c5000 0x3f8000 0x1000
0x7
#1017 - #1017 0xc0f9fc40bd121000 0x3f9000 0x1000
0x7
#1018 - #1018 0xc0f9fc40bb6df000 0x3fa000 0x1000
0x7
#1019 - #1020 0xc0f9fc40bb6e9000 0x3fb000 0x2000
0x7
#1021 - #1021 0xc0f9fc40bb713000 0x3fd000 0x1000
0x7
#1022 - #1022 0xc0f9fc40bb738000 0x3fe000 0x1000
0x7
#1023 - #1023 0xc0f9fc40be444000 0x3ff000 0x1000
0x7
}
