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Diffstat (limited to 'qemu/roms/SLOF/slof/fs/pci-properties.fs')
| -rw-r--r-- | qemu/roms/SLOF/slof/fs/pci-properties.fs | 668 |
1 files changed, 668 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/fs/pci-properties.fs b/qemu/roms/SLOF/slof/fs/pci-properties.fs new file mode 100644 index 000000000..4f134024f --- /dev/null +++ b/qemu/roms/SLOF/slof/fs/pci-properties.fs @@ -0,0 +1,668 @@ +\ ***************************************************************************** +\ * Copyright (c) 2004, 2008 IBM Corporation +\ * All rights reserved. +\ * This program and the accompanying materials +\ * are made available under the terms of the BSD License +\ * which accompanies this distribution, and is available at +\ * http://www.opensource.org/licenses/bsd-license.php +\ * +\ * Contributors: +\ * IBM Corporation - initial implementation +\ ****************************************************************************/ + +#include "pci-class-code-names.fs" + +\ read the various bar type sizes +: pci-bar-size@ ( bar-addr -- bar-size ) -1 over rtas-config-l! rtas-config-l@ ; +: pci-bar-size-mem@ ( bar-addr -- mem-size ) pci-bar-size@ -10 and invert 1+ FFFFFFFF and ; +: pci-bar-size-io@ ( bar-addr -- io-size ) pci-bar-size@ -4 and invert 1+ FFFFFFFF and ; + +\ fetch raw bar size but keep original BAR value +: pci-bar-size ( bar-addr -- bar-size-raw ) + dup rtas-config-l@ swap \ fetch original Value ( bval baddr ) + -1 over rtas-config-l! \ make BAR show size ( bval baddr ) + dup rtas-config-l@ \ and fetch the size ( bval baddr bsize ) + -rot rtas-config-l! \ restore Value +; + +\ calc 32 bit MEM BAR size +: pci-bar-size-mem32 ( bar-addr -- bar-size ) + pci-bar-size \ fetch raw size + -10 and invert 1+ \ calc size + FFFFFFFF and \ keep lower 32 bits +; + +\ calc 32 bit ROM BAR size +: pci-bar-size-rom ( bar-addr -- bar-size ) + pci-bar-size \ fetch raw size + FFFFF800 and invert 1+ \ calc size + FFFFFFFF and \ keep lower 32 bits +; + +\ calc 64 bit MEM BAR size +: pci-bar-size-mem64 ( bar-addr -- bar-size ) + dup pci-bar-size \ fetch raw size lower 32 bits + swap 4 + pci-bar-size \ fetch raw size upper 32 bits + 20 lshift + \ and put them together + -10 and invert 1+ \ calc size +; + +\ calc IO BAR size +: pci-bar-size-io ( bar-addr -- bar-size ) + pci-bar-size \ fetch raw size + -4 and invert 1+ \ calc size + FFFFFFFF and \ keep lower 32 bits +; + + +\ decode the Bar Type +\ +----------------------------------------------------------------------------------------+ +\ | 3 2 1 0 | +\ | +----------------------------+-+--+-+ | +\ | MEM-BAR : | Base Address |P|TT|0| P - prefechtable ; TT - 00 : 32 Bit | +\ | +----------------------------+-+--+-+ 10 : 64 Bit | +\ | +-------------------------------+-+-+ | +\ | IO-BAR : | Base Address |0|1| | +\ | +-------------------------------+-+-+ | +\ | That is: 0 - no encoded BarType | +\ | 1 - IO - Bar | +\ | 2 - Memory 32 Bit | +\ | 3 - Memory 32 Bit prefetchable | +\ | 4 - Memory 64 Bit | +\ | 5 - Memory 64 Bit prefetchable | +\ +----------------------------------------------------------------------------------------+ +: pci-bar-code@ ( bar-addr -- 0|1..4|5 ) + rtas-config-l@ dup \ fetch the BaseAddressRegister + 1 and IF \ IO BAR ? + 2 and IF 0 ELSE 1 THEN \ only '01' is valid + ELSE \ Memory BAR ? + F and CASE + 0 OF 2 ENDOF \ Memory 32 Bit Non-Prefetchable + 8 OF 3 ENDOF \ Memory 32 Bit Prefetchable + 4 OF 4 ENDOF \ Memory 64 Bit Non-Prefetchable + C OF 5 ENDOF \ Memory 64 Bit Prefechtable + dup OF 0 ENDOF \ Not a valid BarType + ENDCASE + THEN +; + +\ *************************************************************************************** +\ Assigning the new Value to the BARs +\ *************************************************************************************** +\ align the current mem and set var to next mem +\ align with a size of 0 returns 0 !!! +: assign-var ( size var -- al-mem ) + 2dup @ \ ( size var size cur-mem ) read current free mem + swap #aligned \ ( size var al-mem ) align the mem to the size + dup 2swap -rot + \ ( al-mem var new-mem ) add size to aligned mem + swap ! \ ( al-mem ) set variable to new mem +; + +\ set bar to current free mem ( in variable ) and set variable to next free mem +: assign-bar-value32 ( bar size var -- 4 ) + over IF \ IF size > 0 + assign-var \ | ( bar al-mem ) set variable to next mem + swap rtas-config-l! \ | ( -- ) set the bar to al-mem + ELSE \ ELSE + 2drop drop \ | clear stack + THEN \ FI + 4 \ size of the base-address-register +; + +\ set bar to current free mem ( in variable ) and set variable to next free mem +: assign-bar-value64 ( bar size var -- 8 ) + over IF \ IF size > 0 + assign-var \ | ( bar al-mem ) set variable to next mem + swap \ | ( al-mem addr ) calc config-addr of this bar + 2dup rtas-config-l! \ | ( al-mem addr ) set the Lower part of the bar to al-mem + 4 + swap 20 rshift \ | ( al-mem>>32 addr ) prepare the upper part of the al-mem + swap rtas-config-l! \ | ( -- ) and set the upper part of the bar + ELSE \ ELSE + 2drop drop \ | clear stack + THEN \ FI + 8 \ size of the base-address-register +; + +\ Setup a prefetchable 64bit BAR and return its size +: assign-mem64-bar ( bar-addr -- 8 ) + dup pci-bar-size-mem64 \ fetch size + pci-next-mem64 @ 0 = IF \ Check if we have 64-bit memory range + pci-next-mem + ELSE + pci-next-mem64 + THEN + assign-bar-value64 \ and set it all +; + +\ Setup a prefetchable 32bit BAR and return its size +: assign-mem32-bar ( bar-addr -- 4 ) + dup pci-bar-size-mem32 \ fetch size + pci-next-mem \ var to change + assign-bar-value32 \ and set it all +; + +\ Setup a non-prefetchable 64bit BAR and return its size +: assign-mmio64-bar ( bar-addr -- 8 ) + dup pci-bar-size-mem64 \ fetch size + pci-next-mem64 @ 0 = IF \ Check if we have 64-bit memory range + pci-next-mmio + ELSE + pci-next-mem64 \ for board-qemu we will use same range + THEN + assign-bar-value64 \ and set it all +; + +\ Setup a non-prefetchable 32bit BAR and return its size +: assign-mmio32-bar ( bar-addr -- 4 ) + dup pci-bar-size-mem32 \ fetch size + pci-next-mmio \ var to change + assign-bar-value32 \ and set it all +; + +\ Setup an IO-Bar and return the size of the base-address-register +: assign-io-bar ( bar-addr -- 4 ) + dup pci-bar-size-io \ fetch size + pci-next-io \ var to change + assign-bar-value32 \ and set it all +; + +\ Setup an Expansion ROM bar +: assign-rom-bar ( bar-addr -- ) + dup pci-bar-size-rom \ fetch size + dup IF \ IF size > 0 + over >r \ | save bar addr for enable + pci-next-mmio \ | var to change + assign-bar-value32 \ | and set it + drop \ | forget the BAR length + r@ rtas-config-l@ \ | fetch BAR + 1 or r> rtas-config-l! \ | and enable the ROM + ELSE \ ELSE + 2drop \ | clear stack + THEN +; + +\ Setup the BAR due to its type and return the size of the register (4 or 8 Bytes ) used as increment for the BAR-Loop +: assign-bar ( bar-addr -- reg-size ) + dup pci-bar-code@ \ calc BAR type + dup IF \ IF >0 + CASE \ | CASE Setup the right type + 1 OF assign-io-bar ENDOF \ | - set up an IO-Bar + 2 OF assign-mmio32-bar ENDOF \ | - set up an 32bit MMIO-Bar + 3 OF assign-mem32-bar ENDOF \ | - set up an 32bit MEM-Bar (prefetchable) + 4 OF assign-mmio64-bar ENDOF \ | - set up an 64bit MMIO-Bar + 5 OF assign-mem64-bar ENDOF \ | - set up an 64bit MEM-Bar (prefetchable) + ENDCASE \ | ESAC + ELSE \ ELSE + ABORT \ | Throw an exception + THEN \ FI +; + +\ Setup all the bars of a pci device +: assign-all-device-bars ( configaddr -- ) + 28 10 DO \ BARs start at 10 and end at 27 + dup i + \ calc config-addr of the BAR + assign-bar \ and set it up + +LOOP \ add 4 or 8 to the index and loop + 30 + assign-rom-bar \ set up the ROM if available +; + +\ Setup all the bars of a pci device +: assign-all-bridge-bars ( configaddr -- ) + 18 10 DO \ BARs start at 10 and end at 17 + dup i + \ calc config-addr of the BAR + assign-bar \ and set it up + +LOOP \ add 4 or 8 to the index and loop + 38 + assign-rom-bar \ set up the ROM if available +; + +\ +---------------------------------------------------------------------------------------+ +\ | Numerical Representaton of a PCI address (PCI Bus Binding 2.2.1.1) | +\ | | +\ | 31 24 16 11 8 0 | +\ | +--------+--------+-----+---+--------+ | +\ | phys.hi: |npt000ss| bus | dev |fnc| reg | n - 0 relocatable | +\ | +--------+--------+-----+---+--------+ p - 1 prefetchable | +\ | t - 1 aliased or <1MB or <64KB | +\ | ss - 00 Configuration Space | +\ | 01 I/O Space | +\ | 10 Memory Space 32bits | +\ | 11 Memory Space 64bits | +\ +---------------------------------------------------------------------------------------+ + +\ *************************************************************************************** +\ Generating the assigned-addresses property +\ *************************************************************************************** +\ generate assigned-addresses property for 64Bit MEM-BAR and return BAR-reg-size +: gen-mem64-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len 8 ) + dup pci-bar-size-mem64 \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch lower 32 bits ( paddr plen baddr val.lo R: size) + over 4 + rtas-config-l@ \ | fetch upper 32 bits ( paddr plen baddr val.lo val.hi R: size) + 20 lshift + -10 and >r \ | calc 64 bit value and save it ( paddr plen baddr R: size val ) + 83000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 8 \ sizeof(BAR) = 8 Bytes +; + +\ generate assigned-addresses property for prefetchable 64Bit MEM-BAR and return BAR-reg-size +: gen-pmem64-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len 8 ) + dup pci-bar-size-mem64 \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch lower 32 bits ( paddr plen baddr val.lo R: size) + over 4 + rtas-config-l@ \ | fetch upper 32 bits ( paddr plen baddr val.lo val.hi R: size) + 20 lshift + -10 and >r \ | calc 64 bit value and save it ( paddr plen baddr R: size val ) + C3000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 8 \ sizeof(BAR) = 8 Bytes +; + +\ generate assigned-addresses property for 32Bit MEM-BAR and return BAR-reg-size +: gen-mem32-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len 4 ) + dup pci-bar-size-mem32 \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch value ( paddr plen baddr val R: size) + -10 and >r \ | calc 32 bit value and save it ( paddr plen baddr R: size val ) + 82000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ sizeof(BAR) = 4 Bytes +; + +\ generate assigned-addresses property for prefetchable 32Bit MEM-BAR and return BAR-reg-size +: gen-pmem32-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len 4 ) + dup pci-bar-size-mem32 \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch value ( paddr plen baddr val R: size) + -10 and >r \ | calc 32 bit value and save it ( paddr plen baddr R: size val ) + C2000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ sizeof(BAR) = 4 Bytes +; + +\ generate assigned-addresses property for IO-BAR and return BAR-reg-size +: gen-io-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len 4 ) + dup pci-bar-size-io \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch value ( paddr plen baddr val R: size) + -4 and >r \ | calc 32 bit value and save it ( paddr plen baddr R: size val ) + 81000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ sizeof(BAR) = 4 Bytes +; + +\ generate assigned-addresses property for ROM-BAR +: gen-rom-bar-prop ( prop-addr prop-len bar-addr -- prop-addr prop-len ) + dup pci-bar-size-rom \ fetch BAR Size ( paddr plen baddr bsize ) + dup IF \ IF Size > 0 + >r dup rtas-config-l@ \ | save size and fetch value ( paddr plen baddr val R: size) + FFFFF800 and >r \ | calc 32 bit value and save it ( paddr plen baddr R: size val ) + 82000000 or encode-int+ \ | Encode config addr ( paddr plen R: size val ) + r> encode-64+ \ | Encode assigned addr ( paddr plen R: size ) + r> encode-64+ \ | Encode size ( paddr plen ) + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI +; + +\ add another BAR to the assigned addresses property and return the size of the encoded register +: pci-add-assigned-address ( prop-addr prop-len bar-addr -- prop-addr prop-len bsize ) + dup pci-bar-code@ \ calc BAR type ( paddr plen baddr btype) + CASE \ CASE for the BAR types ( paddr plen baddr ) + 0 OF drop 4 ENDOF \ - not a valid type so do nothing + 1 OF gen-io-bar-prop ENDOF \ - IO-BAR + 2 OF gen-mem32-bar-prop ENDOF \ - MEM32 + 3 OF gen-pmem32-bar-prop ENDOF \ - MEM32 prefetchable + 4 OF gen-mem64-bar-prop ENDOF \ - MEM64 + 5 OF gen-pmem64-bar-prop ENDOF \ - MEM64 prefetchable + ENDCASE \ ESAC ( paddr plen bsize ) +; + +\ generate the assigned address property for a PCI device +: pci-device-assigned-addresses-prop ( addr -- ) + encode-start \ provide mem for property ( addr paddr plen ) + 2 pick 30 + gen-rom-bar-prop \ assign the rom bar + 28 10 DO \ we have 6 possible BARs + 2 pick i + \ calc BAR address ( addr paddr plen bar-addr ) + pci-add-assigned-address \ and generate the props for the BAR + +LOOP \ increase Index by returned len + s" assigned-addresses" property drop \ and write it into the device tree +; + +\ generate the assigned address property for a PCI bridge +: pci-bridge-assigned-addresses-prop ( addr -- ) + encode-start \ provide mem for property + 2 pick 38 + gen-rom-bar-prop \ assign the rom bar + 18 10 DO \ we have 2 possible BARs + 2 pick i + \ ( addr paddr plen current-addr ) + pci-add-assigned-address \ and generate the props for the BAR + +LOOP \ increase Index by returned len + s" assigned-addresses" property drop \ and write it into the device tree +; + +\ check if the range is valid and if so encode it into +\ child.hi child.mid child.lo parent.hi parent.mid parent.lo size.hi size.lo +\ This is needed to translate the childrens addresses +\ We implement only 1:1 mapping for all PCI bridges +: pci-bridge-gen-range ( paddr plen base limit type -- paddr plen ) + >r over - \ calc size ( paddr plen base size R:type ) + dup 0< IF \ IF Size < 0 ( paddr plen base size R:type ) + 2drop r> drop \ | forget values ( paddr plen ) + ELSE \ ELSE + 1+ swap 2swap \ | adjust stack ( size base paddr plen R:type ) + r@ encode-int+ \ | Child type ( size base paddr plen R:type ) + 2 pick encode-64+ \ | Child address ( size base paddr plen R:type ) + r> encode-int+ \ | Parent type ( size base paddr plen ) + rot encode-64+ \ | Parent address ( size paddr plen ) + rot encode-64+ \ | Encode size ( paddr plen ) + THEN \ FI +; + + +\ generate an mmio space to the ranges property +: pci-bridge-gen-mmio-range ( addr prop-addr prop-len -- addr prop-addr prop-len ) + 2 pick 20 + rtas-config-l@ \ fetch Value ( addr paddr plen val ) + dup 0000FFF0 and 10 lshift \ calc base-address ( addr paddr plen val base ) + swap 000FFFFF or \ calc limit-address ( addr paddr plen base limit ) + 02000000 pci-bridge-gen-range \ and generate it ( addr paddr plen ) +; + +\ generate an mem space to the ranges property +: pci-bridge-gen-mem-range ( addr prop-addr prop-len -- addr prop-addr prop-len ) + 2 pick 24 + rtas-config-l@ \ fetch Value ( addr paddr plen val ) + dup 000FFFFF or \ calc limit Bits 31:0 ( addr paddr plen val limit.31:0 ) + swap 0000FFF0 and 10 lshift \ calc base Bits 31:0 ( addr paddr plen limit.31:0 base.31:0 ) + 4 pick 28 + rtas-config-l@ \ fetch upper Basebits ( addr paddr plen limit.31:0 base.31:0 base.63:32 ) + 20 lshift or swap \ and calc Base ( addr paddr plen base.63:0 limit.31:0 ) + 4 pick 2C + rtas-config-l@ \ fetch upper Limitbits ( addr paddr plen base.63:0 limit.31:0 limit.63:32 ) + 20 lshift or \ and calc Limit ( addr paddr plen base.63:0 limit.63:0 ) + 42000000 pci-bridge-gen-range \ and generate it ( addr paddr plen ) +; + +\ generate an io space to the ranges property +: pci-bridge-gen-io-range ( addr prop-addr prop-len -- addr prop-addr prop-len ) + 2 pick 1C + rtas-config-l@ \ fetch Value ( addr paddr plen val ) + dup 0000F000 and 00000FFF or \ calc Limit Bits 15:0 ( addr paddr plen val limit.15:0 ) + swap 000000F0 and 8 lshift \ calc Base Bits 15:0 ( addr paddr plen limit.15:0 base.15:0 ) + 4 pick 30 + rtas-config-l@ \ fetch upper Bits ( addr paddr plen limit.15:0 base.15:0 val ) + dup FFFF and 10 lshift rot or \ calc Base ( addr paddr plen limit.15:0 val base.31:0 ) + -rot FFFF0000 and or \ calc Limit ( addr paddr plen base.31:0 limit.31:0 ) + 01000000 pci-bridge-gen-range \ and generate it ( addr paddr plen ) +; + +\ generate the ranges property for a PCI bridge +: pci-bridge-range-props ( addr -- ) + encode-start \ provide mem for property + pci-bridge-gen-mmio-range \ generate the non prefetchable Memory Entry + pci-bridge-gen-mem-range \ generate the prefetchable Memory Entry + pci-bridge-gen-io-range \ generate the IO Entry + dup IF \ IF any space present (propsize>0) + s" ranges" property \ | write it into the device tree + ELSE \ ELSE + s" " s" ranges" property + 2drop \ | forget the properties + THEN \ FI + drop \ forget the address +; + +\ create the interrupt map for this bridge +: pci-bridge-interrupt-map ( -- ) + encode-start \ create the property ( paddr plen ) + get-node child \ find the first child ( paddr plen handle ) + BEGIN dup WHILE \ Loop as long as the handle is non-zero ( paddr plen handle ) + dup >r >space \ Get the my-space ( paddr plen addr R: handle ) + pci-gen-irq-entry \ and Encode the interrupt settings ( paddr plen R: handle) + r> peer \ Get neighbour ( paddr plen handle ) + REPEAT \ process next childe node ( paddr plen handle ) + drop \ forget the null ( paddr plen ) + s" interrupt-map" property \ and set it ( -- ) + 1 encode-int s" #interrupt-cells" property \ encode the cell# + f800 encode-int 0 encode-int+ 0 encode-int+ \ encode the bit mask for config addr (Dev only) + 7 encode-int+ s" interrupt-map-mask" property \ encode IRQ#=7 and generate property +; + +\ *************************************************************************************** +\ Generating the reg property +\ *************************************************************************************** +\ reg = config-addr 0 0 0 0 [BAR-config-addr 0 0 size.high size.low] + +\ encode the reg prop for a nonprefetchable 32bit MEM-BAR +: encode-mem32-bar ( prop-addr prop-len BAR-addr -- prop-addr prop-len 4 ) + dup pci-bar-size-mem32 \ calc BAR-size ( not changing the BAR ) + dup IF \ IF BAR-size > 0 ( paddr plen baddr bsize ) + >r 02000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | encode size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ BAR-Len = 4 (32Bit) +; + +\ encode the reg prop for a prefetchable 32bit MEM-BAR +: encode-pmem32-bar ( prop-addr prop-len BAR-addr -- prop-addr prop-len 4 ) + dup pci-bar-size-mem32 \ calc BAR-size ( not changing the BAR ) + dup IF \ IF BAR-size > 0 ( paddr plen baddr bsize ) + >r 42000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | encode size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ BAR-Len = 4 (32Bit) +; + +\ encode the reg prop for a nonprefetchable 64bit MEM-BAR +: encode-mem64-bar ( prop-addr prop-len BAR-addr -- prop-addr prop-len 8 ) + dup pci-bar-size-mem64 \ calc BAR-size ( not changing the BAR ) + dup IF \ IF BAR-size > 0 ( paddr plen baddr bsize ) + >r 03000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | encode size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 8 \ BAR-Len = 8 (64Bit) +; + +\ encode the reg prop for a prefetchable 64bit MEM-BAR +: encode-pmem64-bar ( prop-addr prop-len BAR-addr -- prop-addr prop-len 8 ) + dup pci-bar-size-mem64 \ calc BAR-size ( not changing the BAR ) + dup IF \ IF BAR-size > 0 ( paddr plen baddr bsize ) + >r 43000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | encode size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 8 \ BAR-Len = 8 (64Bit) +; + +\ encode the reg prop for a ROM-BAR +: encode-rom-bar ( prop-addr prop-len configaddr -- prop-addr prop-len ) + dup pci-bar-size-rom \ fetch raw BAR-size + dup IF \ IF BAR is used + >r 02000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | calc and encode the size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI +; + +\ encode the reg prop for an IO-BAR +: encode-io-bar ( prop-addr prop-len BAR-addr BAR-value -- prop-addr prop-len 4 ) + dup pci-bar-size-io \ calc BAR-size ( not changing the BAR ) + dup IF \ IF BAR-size > 0 ( paddr plen baddr bsize ) + >r 01000000 or encode-int+ \ | save size and encode BAR addr + 0 encode-64+ \ | make mid and lo zero + r> encode-64+ \ | encode size + ELSE \ ELSE + 2drop \ | don't do anything + THEN \ FI + 4 \ BAR-Len = 4 (32Bit) +; + +\ write the representation of this BAR into the reg property +: encode-bar ( prop-addr prop-len bar-addr -- prop-addr prop-len bar-len ) + dup pci-bar-code@ \ calc BAR type + CASE \ CASE for the BAR types ( paddr plen baddr val ) + 0 OF drop 4 ENDOF \ - not a valid type so do nothing + 1 OF encode-io-bar ENDOF \ - IO-BAR + 2 OF encode-mem32-bar ENDOF \ - MEM32 + 3 OF encode-pmem32-bar ENDOF \ - MEM32 prefetchable + 4 OF encode-mem64-bar ENDOF \ - MEM64 + 5 OF encode-pmem64-bar ENDOF \ - MEM64 prefetchable + ENDCASE \ ESAC ( paddr plen blen ) +; + +\ Setup reg property +\ first encode the configuration space address +: pci-reg-props ( configaddr -- ) + dup encode-int \ configuration space ( caddr paddr plen ) + 0 encode-64+ \ make the rest 0 + 0 encode-64+ \ encode the size as 0 + 2 pick pci-htype@ \ fetch Header Type ( caddr paddr plen type ) + 1 and IF \ IF Bridge ( caddr paddr plen ) + 18 10 DO \ | loop over all BARs + 2 pick i + \ | calc bar-addr ( caddr paddr plen baddr ) + encode-bar \ | encode this BAR ( caddr paddr plen blen ) + +LOOP \ | increase LoopIndex by the BARlen + 2 pick 38 + \ | calc ROM-BAR for a bridge ( caddr paddr plen baddr ) + encode-rom-bar \ | encode the ROM-BAR ( caddr paddr plen ) + ELSE \ ELSE ordinary device ( caddr paddr plen ) + 28 10 DO \ | loop over all BARs + 2 pick i + \ | calc bar-addr ( caddr paddr plen baddr ) + encode-bar \ | encode this BAR ( caddr paddr plen blen ) + +LOOP \ | increase LoopIndex by the BARlen + 2 pick 30 + \ | calc ROM-BAR for a device ( caddr paddr plen baddr ) + encode-rom-bar \ | encode the ROM-BAR ( caddr paddr plen ) + THEN \ FI ( caddr paddr plen ) + s" reg" property \ and store it into the property + drop +; + +\ *************************************************************************************** +\ Generating common properties +\ *************************************************************************************** +\ set up common properties for devices and bridges +: pci-common-props ( addr -- ) + dup pci-class-name device-name + dup pci-vendor@ encode-int s" vendor-id" property + dup pci-device@ encode-int s" device-id" property + dup pci-revision@ encode-int s" revision-id" property + dup pci-class@ encode-int s" class-code" property + 3 encode-int s" #address-cells" property + 2 encode-int s" #size-cells" property + + dup pci-config-ext? IF 1 encode-int s" ibm,pci-config-space-type" property THEN + + dup pci-status@ + dup 9 rshift 3 and encode-int s" devsel-speed" property + dup 7 rshift 1 and IF 0 0 s" fast-back-to-back" property THEN + dup 6 rshift 1 and IF 0 0 s" 66mhz-capable" property THEN + 5 rshift 1 and IF 0 0 s" udf-supported" property THEN + dup pci-cache@ ?dup IF encode-int s" cache-line-size" property THEN + pci-interrupt@ ?dup IF encode-int s" interrupts" property THEN +; + +\ set up device only properties +: pci-device-props ( addr -- ) + \ FIXME no s" compatible" prop + \ FIXME no s" alternate-reg" prop + \ FIXME no s" fcode-rom-offset" prop + \ FIXME no s" power-consumption" prop + dup pci-common-props + dup pci-min-grant@ encode-int s" min-grant" property + dup pci-max-lat@ encode-int s" max-latency" property + dup pci-sub-device@ ?dup IF encode-int s" subsystem-id" property THEN + dup pci-sub-vendor@ ?dup IF encode-int s" subsystem-vendor-id" property THEN + dup pci-device-assigned-addresses-prop + pci-reg-props + pci-hotplug-enabled IF + \ QEMU uses static assignments for my-drc-index: + \ 40000000h + $bus << 8 + $slot << 3 + dup dup pci-addr2bus 8 lshift + swap pci-addr2dev 3 lshift or + 40000000 + encode-int s" ibm,my-drc-index" property + \ QEMU uses "Slot $bus*32$slotno" for loc-code + dup dup pci-addr2bus 20 * + swap pci-addr2dev + + a base ! + s" Slot " rot $cathex + hex + encode-string s" ibm,loc-code" property + THEN +; + +\ set up bridge only properties +: pci-bridge-props ( addr -- ) + \ FIXME no s" slot-names" prop + \ FIXME no s" bus-master-capable" prop + \ FIXME no s" clock-frequency" prop + dup pci-bus@ + encode-int s" primary-bus" property + encode-int s" secondary-bus" property + encode-int s" subordinate-bus" property + dup pci-bus@ drop encode-int rot encode-int+ s" bus-range" property + pci-device-slots encode-int s" slot-names" property + dup pci-bridge-range-props + dup pci-bridge-assigned-addresses-prop + \ Only create interrupt-map when it doesn't already exist + \ (it can be provided by qemu) + s" interrupt-map" get-node get-property IF + pci-bridge-interrupt-map + ELSE 2drop THEN + pci-reg-props +; + + +\ used to set up all unknown Bridges. +\ If a Bridge has no special handling for setup +\ the device file (pci-bridge_VENDOR_DEVICE.fs) can call +\ this word to setup busses and scan beyond. +: pci-bridge-generic-setup ( addr -- ) + pci-device-slots >r \ save the slot array on return stack + dup pci-common-props \ set the common properties before scanning the bus + s" pci" device-type \ the type is allways "pci" + dup pci-bridge-probe \ find all device connected to it + dup assign-all-bridge-bars \ set up all memory access BARs + dup pci-set-irq-line \ set the interrupt pin + dup pci-set-capabilities \ set up the capabilities + pci-bridge-props \ and generate all properties + r> TO pci-device-slots \ and reset the slot array +; + +DEFER func-pci-device-props + +\ used for an gerneric device set up +\ if a device has no special handling for setup +\ the device file (pci-device_VENDOR_DEVICE.fs) can call +\ this word to setup the device +: pci-device-generic-setup ( config-addr -- ) + dup assign-all-device-bars \ calc all BARs + dup pci-set-irq-line \ set the interrupt pin + dup pci-set-capabilities \ set up the capabilities + dup func-pci-device-props \ and generate all properties + drop \ forget the config-addr +; + +' pci-device-props TO func-pci-device-props |