Display one MMU translation per row for .properties command. Define a variable number of columns to handle platform specifics.
v3: * Only ppc includes the physical address in the translations property. Simplify loop by reverting to decreasing column offsets.
v2: * Define columns for spacing. Add helpers to facilitate this.
Signed-off-by: Andreas Färber andreas.faerber@web.de --- forth/admin/devices.fs | 69 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/forth/admin/devices.fs b/forth/admin/devices.fs index 7a5b693..6e70b77 100644 --- a/forth/admin/devices.fs +++ b/forth/admin/devices.fs @@ -326,6 +326,71 @@ 3drop drop ;
+\ Return the number of cells per physical address +: .p-translations-#pacells ( -- #cells ) + " /" find-package if + " #address-cells" rot get-package-property if + 1 + else + decode-int nip nip 1 max + then + else + 1 + then +; + +\ Return the number of cells per translation entry +: .p-translations-#cells ( -- #cells ) + [IFDEF] CONFIG_PPC + my-#acells 3 * + .p-translations-#pacells + + [ELSE] + my-#acells 3 * + [THEN] +; + +\ Set up column offsets +: .p-translations-cols ( -- col1 ... coln #cols ) + .p-translations-#cells 4 * + [IFDEF] CONFIG_PPC + 4 - + dup 4 - + dup .p-translations-#pacells 4 * - + 3 + [ELSE] + my-#acells 4 * - + dup my-#scells 4 * - + 2 + [THEN] +; + +\ Print the value of the MMU translations property +: .p-translations ( data len -- ) + >r >r .p-translations-cols r> r> ( col1 ... coln #cols data len ) + 2dup + -rot ( col1 ... coln #cols data+len data len ) + >r >r .p-translations-#cells 4 * dup r> r> + ( col1 ... coln #cols data+len #bytes #bytes len data ) + bounds ( col1 ... coln #cols data+len #bytes #bytes data+len data ) ?do + 3 pick 4 + 4 ?do \ check all defined columns + i pick over = if + 2 spaces \ start new column + then + loop + 2dup <> if \ non-first byte in row + dup 3 and 0= if space then \ make numbers more readable + then + i c@ 2 0.r \ print byte + 1- dup 0= if \ end of row + 2 pick i 1+ > if \ non-last byte + cr \ start new line + d# 26 spaces \ indentation + then + drop dup \ update counter + then + loop + 2drop drop 0 ?do drop loop +; + \ This function hardwires data formats to particular node properties : (.property-by-name) ( name-str name-len data len -- ) 2over " reg" strcmp 0= if @@ -346,6 +411,10 @@ 1 1 2swap .p-reg 2drop exit then + 2over " translations" strcmp 0= if + .p-translations + 2drop exit + then then then then