HEADS UP: Changes to SGMAP address space management

Jason Thorpe <[email protected]>
Newsgroups gmane.os.netbsd.ports.alpha
Message-ID <[email protected]>
I've just checked in a change to use a vmem arena rather than an extent map to manage the SGMAP address space.  This was a clean mechanical change, but if you notice bad behavior with PCI or ISA DMA on your system, let me know and I will investigate.

> Begin forwarded message:
> 
> From: Jason R Thorpe <[email protected]>
> Subject: CVS commit: src/sys/arch/alpha/common
> Date: June 16, 2020 at 9:12:39 PM PDT
> To: [email protected]
> Reply-To: [email protected]
> 
> Module Name:	src
> Committed By:	thorpej
> Date:		Wed Jun 17 04:12:39 UTC 2020
> 
> Modified Files:
> 	src/sys/arch/alpha/common: sgmap_common.c sgmap_typedep.c sgmapvar.h
> 
> Log Message:
> Switch from an extent mao to a vmem arena to manage SGMAP address space.
> 
> 
> To generate a diff of this commit:
> cvs rdiff -u -r1.26 -r1.27 src/sys/arch/alpha/common/sgmap_common.c
> cvs rdiff -u -r1.37 -r1.38 src/sys/arch/alpha/common/sgmap_typedep.c
> cvs rdiff -u -r1.16 -r1.17 src/sys/arch/alpha/common/sgmapvar.h
> 
> Please note that diffs are not public domain; they are subject to the
> copyright notices on the relevant files.
> 

-- thorpej
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