NetBSD Problem Report #42010

From jmcneill@pipes.invisible.ca  Mon Sep  7 22:42:45 2009
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Date: Mon,  7 Sep 2009 18:44:00 -0400 (EDT)
From: jmcneill@invisible.ca
Reply-To: jmcneill@invisible.ca
To: gnats-bugs@gnats.NetBSD.org
Subject: x86 bus_dmamem_mmap does not honour BUS_DMA_NOCACHE
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>Number:         42010
>Category:       port-i386
>Synopsis:       x86 bus_dmamem_mmap does not honour BUS_DMA_NOCACHE
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 07 22:45:00 +0000 2009
>Closed-Date:    
>Last-Modified:  Sat Sep 05 20:40:01 +0000 2015
>Originator:     Jared D. McNeill
>Release:        NetBSD 5.99.16
>Organization:

>Environment:


System: NetBSD pipes.invisible.ca 5.99.16 NetBSD 5.99.16 (MONOLITHIC) #45: Mon Sep 7 18:37:21 EDT 2009 jmcneill@ptichka.invisible.ca:/Users/jmcneill/branches/HEAD/src/sys/arch/i386/compile/obj/MONOLITHIC i386
Architecture: i386
Machine: i386
>Description:
	x86 bus_dmamem_mmap does not honour BUS_DMA_NOCACHE, which is required
	to fix kern/35961
>How-To-Repeat:

>Fix:


>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->feedback
State-Changed-By: jakllsch@NetBSD.org
State-Changed-When: Fri, 09 May 2014 20:16:33 +0000
State-Changed-Why:
This is probably working, at least since 1.50 of src/sys/arch/x86/x86/bus_dma.c
.


State-Changed-From-To: feedback->open
State-Changed-By: jmcneill@NetBSD.org
State-Changed-When: Wed, 05 Aug 2015 08:01:09 +0000
State-Changed-Why:


From: David Holland <dholland-bugs@netbsd.org>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-i386/42010 (x86 bus_dmamem_mmap does not honour
 BUS_DMA_NOCACHE)
Date: Sat, 5 Sep 2015 20:38:12 +0000

 On Wed, Aug 05, 2015 at 08:01:09AM +0000, jmcneill@NetBSD.org wrote:
  > Synopsis: x86 bus_dmamem_mmap does not honour BUS_DMA_NOCACHE
  > 
  > State-Changed-From-To: feedback->open
  > State-Changed-By: jmcneill@NetBSD.org
  > State-Changed-When: Wed, 05 Aug 2015 08:01:09 +0000
  > State-Changed-Why:

 Care to elaborate on that a bit? :-p

 (also, for the record, kern/35961 has been more or less superseded by
 kern/48792)

 -- 
 David A. Holland
 dholland@netbsd.org

>Unformatted:

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