Date: Sun, 3 Jun 2012 22:40:32 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r236531 - projects/altix2/sys/kern Message-ID: <201206032240.q53MeWPb089072@svn.freebsd.org>
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Author: marcel Date: Sun Jun 3 22:40:32 2012 New Revision: 236531 URL: http://svn.freebsd.org/changeset/base/236531 Log: First quick sketch of the busdma I/O MMU interface. Added: projects/altix2/sys/kern/busdma_if.m (contents, props changed) Added: projects/altix2/sys/kern/busdma_if.m ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/altix2/sys/kern/busdma_if.m Sun Jun 3 22:40:32 2012 (r236531) @@ -0,0 +1,58 @@ +#- +# Copyright (c) 2012 Marcel Moolenaar +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions 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. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +#include <sys/bus.h> +#include <sys/busdma.h> + +INTERFACE busdma; + +busdma_mmu_t { + void * cookie; + vm_paddr_t minaddr; + vm_paddr_t maxaddr; + vm_size_t maxsz; + vm_paddr_t align; + vm_paddr_t bndry; +} + +METHOD int iommu_alloc { + device_t dev; + busdma_md_t md; + busdma_mmu_t *mmu; +}; + +METHOD int iommu_map { + device_t dev; + busdma_md_t md; + busdma_mmu_t *mmu; +}; + +METHOD int iommu_unmap { + device_t dev; + busdma_md_t md; +};
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