--- /dev/null
+\ *****************************************************************************
+\ * 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
Code Review / kvmfornfv.git / blobdiff