Edit
openbios/openboot/obp/dev/sun4v-devices/iommu
Stefan Reinauer
- iommu.fth
-
\ ========== Copyright Header Begin ========================================== \ \ Hypervisor Software File: iommu.fth \ \ Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. \ \ - Do no alter or remove copyright notices \ \ - Redistribution and use of this software in source and binary forms, with \ or without modification, are permitted provided that the following \ conditions are met: \ \ - Redistribution of source code must retain the above copyright notice, \ this list of conditions and the following disclaimer. \ \ - Redistribution in binary form must reproduce the above copyright notice, \ this list of conditions and the following disclaimer in the \ documentation and/or other materials provided with the distribution. \ \ Neither the name of Sun Microsystems, Inc. or the names of contributors \ may be used to endorse or promote products derived from this software \ without specific prior written permission. \ \ This software is provided "AS IS," without a warranty of any kind. \ ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, \ INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A \ PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN \ MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR \ ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR \ DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN \ OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR \ FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE \ DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, \ ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF \ SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. \ \ You acknowledge that this software is not designed, licensed or \ intended for use in the design, construction, operation or maintenance of \ any nuclear facility. \ \ ========== Copyright Header End ============================================ id: @(#)iommu.fth 1.2 06/03/17 purpose: copyright: Copyright 2006 Sun Microsystems, Inc. All Rights Reserved copyright: Use is subject to license terms. headerless my-space h# fff.ffff and constant devhandle 0 constant tsbnum 1 constant pci-map-attr-read 2 constant pci-map-attr-write pci-map-attr-read pci-map-attr-write or constant io-attributes h# b0 constant iommu-map-fun h# b1 constant iommu-demap-fun h# b2 constant iommu-getmap-fun h# b3 constant iommu-getbypass-fun h# b4 constant config-get-fun h# b5 constant config-put-fun h# b8 constant dma-sync-fun h# 80 constant fast-trap# 1 constant pci-map-attr-read 2 constant pci-map-attr-write pci-map-attr-read pci-map-attr-write or constant pci-map-attr 1 constant pci-sync-device 2 constant pci-sync-cpu pci-sync-device pci-sync-cpu or constant pci-sync variable dma-list dma-list off virtual-dma-addr virtual-dma-size dma-list free-memrange 1 constant ENOCUP 2 constant ENORADDR 3 constant EOINTR 4 constant EBADPGSZ 5 constant EBADTSB 6 constant EINVAL 7 constant EBADTRAP 8 constant EBADALIGN 9 constant EWOULDBLOCK d# 10 constant ENOACCESS d# 11 constant EIO d# 12 constant ECPUERROR d# 13 constant ENOTSUPPORTED d# 14 constant ENOMAP d# 15 constant ETOOMANY : fast-trap ( ??? #in #out fun# -- ??? ) dup >r fast-trap# htrap ( ??? status )( R: fun# ) r> swap ( ??? fun# status ) ?dup if ( ??? fun# status| ) cmn-error[ case ENOCUP of " ENOCUP" endof ENORADDR of " Invalid real address" endof EOINTR of " EOINTR" endof EBADPGSZ of " EBADPGSZ" endof EBADTSB of " EBADTSB" endof EINVAL of " Invalid hypervisor argument(s)" endof EBADTRAP of " EBADTRAP" endof EBADALIGN of " Improperly aligned address" endof EWOULDBLOCK of " EWOULDBLOCK" endof ENOACCESS of " Access to real address offset not permitted" endof EIO of " EIO" endof ECPUERROR of " ECPUERROR" endof ENOTSUPPORTED of " Hypervisor function not supported" endof ENOMAP of " ENOMAP" endof ETOOMANY of " ETOOMANY" endof " Invalid Hypervisor error code" rot endcase rot " %s. function: %x" ]cmn-end else ( ??? fun# ) drop ( ??? ) then ( ??? ) ; headers : pci-config-get ( pci-device pci-config-offset size -- data error-flag ) >r >r >r devhandle r> r> r> ( devhandle pci-device pci-config-offset size ) 4 3 config-get-fun fast-trap ( data error-flag ) ; : pci-config-put ( pci-device pci-config-offset size data -- error-flag ) >r >r >r >r devhandle r> r> r> r> ( devhandle pci-device pci-config-offset size data ) 5 2 config-put-fun fast-trap ( error-flag ) ; : pci-iommu-getmap ( tsbindex -- raddr io-attributes ) devhandle swap 2 3 iommu-getmap-fun fast-trap ; : (pci-iommu-map) ( tsbid #ttes io-page-list-p -- #ttes-actual ) >r >r >r devhandle r> r> pci-map-attr r> ( dev tsbid #ttes io-attributes io-page-list-p ) 5 2 iommu-map-fun fast-trap ( #ttes-actual ) ; : pci-iommu-map ( tsbindex #ttes io-page-list-p -- ) begin ( tsbindex #ttes io-page-list-p ) over >r 3dup (pci-iommu-map) r> ( tsbindex #ttes io-page-list-p #ttes-actual #ttes ) over <> ( tsbindex #ttes io-page-list-p #ttes-actual more? ) while ( tsbindex #ttes io-page-list-p #ttes-actual ) tuck /x * + >r ( tsbindex #ttes #ttes-actual )( R: io-page-list-p' ) tuck - >r ( tsbindex #ttes-actual )( R: io-page-list-p' #ttes' ) + r> r> ( tsbindex' #ttes' io-page-list-p' )( R: ) repeat ( tsbindex' #ttes' io-page-list-p' ) 2drop 2drop ( ) ; : (pci-iommu-demap) ( tsbindex #ttes -- #ttes-actual ) >r >r devhandle r> r> ( dev tsbindex #ttes ) 3 2 iommu-demap-fun fast-trap ( #ttes-actual ) ; : pci-iommu-demap ( tsbindex #ttes -- ) begin ( tsbindex #ttes ) 2dup (pci-iommu-demap) 2dup <> ( tsbindex #ttes #ttes-actual more? ) while ( tsbindex #ttes #ttes-actual ) tuck - -rot + swap ( tsbindex' #ttes' ) repeat ( tsbindex' #ttes' ) 3drop ; : (pci-dma-sync) ( raddr size io-sync-direction -- #synced ) >r devhandle -rot r> ( dev raddr size io-sync-direction ) 4 2 dma-sync-fun fast-trap ( #synced ) ; : pci-dma-sync ( raddr size -- ) 2dup >r >r ( raddr size ) ( R: raddr size ) begin ( raddr size ) 2dup pci-sync-cpu (pci-dma-sync) 2dup <> ( raddr size #synced more? ) while ( raddr size #synced ) tuck - -rot + swap ( raddr' size' ) repeat ( raddr' size' ) 3drop ( ) r> r> ( raddr size ) begin ( raddr size ) 2dup pci-sync-device (pci-dma-sync) 2dup <> ( raddr size #synced more? ) while ( raddr size #synced ) tuck - -rot + swap ( raddr' size' ) repeat ( raddr' size' ) 3drop ( ) ; : setup-io-page-list ( raddr io-page-list #ttes -- ) 0 ?do ( raddr io-page-list ) 2dup x! /x + swap ( io-page-list' raddr ) mmu-pagesize + swap ( raddr' io-page-list' ) loop ( raddr' io-page-list' ) 2drop ( ) ; external : dma-alloc ( size -- vaddr ) mmu-pagesize swap 0 claim ; : dma-free ( vaddr size -- ) swap release ; : dma-sync ( virt-addr dev-addr size -- ) rot >physical drop swap ( dev-addr raddr size) pci-dma-sync ( dev-addr ) drop ; : dma-map-in ( virt size cache? -- dma-virt ) drop mmu-pagesize round-up ( virt size' ) mmu-pagesize over dma-list ( virt size align size list ) allocate-memrange throw dup >r ( virt size dma-virt )( R: dma-virt ) virtual-dma-base dup and32 - ( virt size offset ) mmu-pagesize / -rot ( tsbindex virt size ) mmu-pagesize / tuck tuck /x * ( tsbindex #ttes #ttes virt /io-page-list ) >r r@ /x swap 0 claim ( tsbindex #ttes #ttes virt io-page-list )( R: dma-virt /io-page-list ) dup >r swap ( tsbindex #ttes #ttes io-page-list virt )( R: dma-virt /io-page-list io-page-list ) >physical drop ( tsbindex #ttes #ttes io-page-list raddr ) swap rot setup-io-page-list ( tsbindex #ttes ) r@ >physical drop ( tsbindex #ttes io-page-list-p )( R: dma-virt /io-page-list io-page-list ) pci-iommu-map r> r> ( io-page-list /io-page-list )( R: dma-virt ) swap release r> ( dma-virt )( R: ) ; : dma-map-out ( virt dma-virt size -- ) mmu-pagesize round-up ( virt devadr size' ) 2dup dma-list free-memrange ( virt devadr size' ) mmu-pagesize / swap ( virt #ttes devadr ) virtual-dma-base dup and32 - ( virt #ttes offset ) mmu-pagesize / swap ( virt tsbindex #ttes ) pci-iommu-demap drop ( ) ; headers : dma-mapped? ( dma-virt -- raddr ) virtual-dma-base dup and32 - ( offset ) mmu-pagesize / ( tsbindex ) pci-iommu-getmap ( raddr attributes ) ." attributes: 0x" .h cr ( raddr ) ." raddr: 0x" .h ( ) ; headerless