GRMON3-UM
June 2019, Version 3.1.0
168 www.cobham.com/gaisler
68. mmu - syntax
NAME
mmu - Print or set the SRMMU registers
SYNOPSIS
mmu ?cpu#?
mmu subcommand ?args...? ?cpu#?
DESCRIPTION
mmu ?cpu#?
Print the SRMMU registers
mmu mctrl ?value? ?cpu#?
Set the MMU control register
mmu ctxptr ?value? ?cpu#?
Set the context pointer register
mmu ctx value? ?cpu#?
Set the context register
mmu va ctx? ?cpu#?
Translate a virtual address. The command will use the MMU from the current active CPU and the cpu#
can be used to select a different CPU.
mmu walk ctx? ?cpu#?
Translate a virtual address and print translation. The command will use the MMU from the current active
CPU and the cpu# can be used to select a different CPU.
mmu table ctx? ?cpu#?
Print table, optionally specify context. The command will use the MMU from the current active CPU and
the cpu# can be used to select a different CPU.
RETURN VALUE
The commands mmu returns a list of the MMU registers.
The commands mmu va and mmu walk returns the translated address.
The command mmu table returns a list of ranges, where each range has the following format: {vaddr_start
vaddr_end paddr_start paddr_end access pages
EXAMPLE
Print MMU registers
grmon3> mmu
mctrl: 00904001 ctx: 00000001 ctxptr: 00622000 fsr: 000002DC far: 9CFB9000
TCL returns:
9453569 1 401920 732 -1661235200
Print MMU table
grmon3> puts [mmu table]
MMU Table for CTX1 for CPU0
0x00000000-0x00000fff -> 0x00000000-0x00000fff crwxrwx [1 page]
0x00001000-0x0061ffff -> 0x00001000-0x0061ffff crwx--- [1567 pages]
0x00620000-0x00620fff -> 0x00620000-0x00620fff -r-xr-x [1 page]
0x00621000-0x00621fff -> 0x00621000-0x00621fff crwx--- [1 page]
...
TCL returns:
{0x00000000 0x00000fff 0x00000000 0x00000fff crwxrwx 1} {0x00001000
0x0061ffff 0x00001000 0x0061ffff crwx--- 1567} {0x00620000 0x00620fff
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