| \ ***************************************************************************** |
| \ * 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-mem \ var to change |
| 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-mmio \ var to change |
| 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 |
| 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 2dup device-name device-type |
| 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 |
| ; |
| |
| \ 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 pci-device-props \ and generate all properties |
| drop \ forget the config-addr |
| ; |
