Date: Thu, 19 Mar 2009 15:45:44 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r190072 - stable/7/share/man/man9 Message-ID: <200903191545.n2JFjiIN067387@svn.freebsd.org>
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Author: marius Date: Thu Mar 19 15:45:43 2009 New Revision: 190072 URL: http://svn.freebsd.org/changeset/base/190072 Log: MFC: r179694 Mark "highaddr" and "lowaddr" appropriately. Change "dma" to "DMA". Fix spelling mistage found by rodrigc@. Reviewed by: rodrigc, danger Modified: stable/7/share/man/man9/ (props changed) stable/7/share/man/man9/bus_dma.9 Modified: stable/7/share/man/man9/bus_dma.9 ============================================================================== --- stable/7/share/man/man9/bus_dma.9 Thu Mar 19 15:44:13 2009 (r190071) +++ stable/7/share/man/man9/bus_dma.9 Thu Mar 19 15:45:43 2009 (r190072) @@ -283,7 +283,7 @@ Client specified lock/mutex manipulation This will be called from within busdma whenever a client lock needs to be manipulated. In its current form, the function will be called immediately before -the callback for a dma load operation that has been deferred with +the callback for a DMA load operation that has been deferred with .Dv BUS_DMA_LOCK and immediately after with .Dv BUS_DMA_UNLOCK . @@ -364,17 +364,26 @@ indicates that there are no boundary res Bounds of the window of bus address space that .Em cannot be directly accessed by the device. -The window contains all addresses greater than lowaddr and -less than or equal to highaddr. -For example, a device incapable of DMA above 4GB, would specify -a highaddr of +The window contains all addresses greater than +.Fa lowaddr +and less than or equal to +.Fa highaddr . +For example, a device incapable of DMA above 4GB, would specify a +.Fa highaddr +of .Dv BUS_SPACE_MAXADDR -and a lowaddr of +and a +.Fa lowaddr +of .Dv BUS_SPACE_MAXADDR_32BIT . -Similarly a device that can only dma to addresses bellow 16MB would -specify a highaddr of +Similarly a device that can only perform DMA to addresses below +16MB would specify a +.Fa highaddr +of .Dv BUS_SPACE_MAXADDR -and a lowaddr of +and a +.Fa lowaddr +of .Dv BUS_SPACE_MAXADDR_24BIT . Some implementations requires that some region of device visible address space, overlapping available host memory, be outside the
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