Re: [PATCH v2 3/3] omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 2:15 PM, David Cohen wrote: > Currently IOVMM driver sets IOVMF_DA_FIXED/IOVMF_DA_ANON flags according > to input 'da' address when mapping memory: > da == 0: IOVMF_DA_ANON > da != 0: IOVMF_DA_FIXED > > It prevents IOMMU to map first page with fixed 'da'. To avoid such > iss

Re: [PATCH] omap: iommu: disallow mapping NULL address

2011-03-08 Thread Guzman Lugo, Fernando
Mar 7, 2011 at 9:25 PM, Guzman Lugo, Fernando wrote: >> >> > On Mon, Mar 7, 2011 at 1:19 PM, David Cohen wrote: >> >> >> On Mon, Mar 7, 2011 at 9:17 PM, Guzman Lugo, Fernando wrote: >> >> >>> On Mon, Mar 7, 2011 at 7:10 AM, Michael Jones wrote: >>

Re: [PATCH v2 1/3] omap: iovmm: disallow mapping NULL address when IOVMF_DA_ANON is set

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 2:15 PM, David Cohen wrote: > From: Michael Jones > > commit c7f4ab26e3bcdaeb3e19ec658e3ad9092f1a6ceb allowed mapping the NULL > address if da_start==0, which would then not get unmapped. Disallow > this again if IOVMF_DA_ANON is set. And spell variable 'alignment' > correc

Re: [PATCH 1/3] omap: iovmm: disallow mapping NULL address

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 1:06 PM, David Cohen wrote: > On Tue, Mar 8, 2011 at 8:06 PM, Guzman Lugo, Fernando > wrote: >> On Tue, Mar 8, 2011 at 6:46 AM, David Cohen wrote: >>> From: Michael Jones >>> >>> commit c7f4ab26e3bcdaeb3e19ec658e3ad9092f1a6ceb

Re: [PATCH 3/3] omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED/IOVMF_DA_ANON flags

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 12:57 PM, David Cohen wrote: > Hi Hiroshi, Fernando, > > On Tue, Mar 8, 2011 at 8:53 PM, Guzman Lugo, Fernando > wrote: >> On Tue, Mar 8, 2011 at 12:09 PM, Hiroshi DOYU wrote: >>> From: "ext Guzman Lugo, Fernando" >>> Subject

Re: [PATCH 3/3] omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED/IOVMF_DA_ANON flags

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 12:09 PM, Hiroshi DOYU wrote: > From: "ext Guzman Lugo, Fernando" > Subject: Re: [PATCH 3/3] omap: iovmm: don't check 'da' to set > IOVMF_DA_FIXED/IOVMF_DA_ANON flags > Date: Tue, 8 Mar 2011 11:59:43 -0600 > >> On T

Re: [PATCH 1/3] omap: iovmm: disallow mapping NULL address

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 6:46 AM, David Cohen wrote: > From: Michael Jones > > commit c7f4ab26e3bcdaeb3e19ec658e3ad9092f1a6ceb allowed mapping > the NULL address if da_start==0, which would then not get unmapped. > Disallow this again.  And spell variable 'alignment' correctly. > > Signed-off-by: M

Re: [PATCH 3/3] omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED/IOVMF_DA_ANON flags

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 6:46 AM, David Cohen wrote: > Currently IOVMM driver sets IOVMF_DA_FIXED/IOVMF_DA_ANON flags according > to input 'da' address when mapping memory: > da == 0: IOVMF_DA_ANON > da != 0: IOVMF_DA_FIXED > > It prevents IOMMU to map first page with fixed 'da'. To avoid such > iss

Re: [PATCH] omap: iommu: disallow mapping NULL address

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 3:55 AM, David Cohen wrote: > Hi Fernando, > > On Tue, Mar 8, 2011 at 11:13 AM, Sakari Ailus > wrote: >> Guzman Lugo, Fernando wrote: >>> On Mon, Mar 7, 2011 at 1:19 PM, David Cohen wrote: >>>> On Mon, Mar 7, 2011 at 9:17 PM, Guzm

Re: [PATCH] omap: iommu: disallow mapping NULL address

2011-03-08 Thread Guzman Lugo, Fernando
On Tue, Mar 8, 2011 at 3:13 AM, Sakari Ailus wrote: > Guzman Lugo, Fernando wrote: >> On Mon, Mar 7, 2011 at 1:19 PM, David Cohen wrote: >>> On Mon, Mar 7, 2011 at 9:17 PM, Guzman Lugo, Fernando >>> wrote: >>>> On Mon, Mar 7, 2011 at 7:10 AM

Re: [PATCH] omap: iommu: disallow mapping NULL address

2011-03-07 Thread Guzman Lugo, Fernando
On Mon, Mar 7, 2011 at 1:19 PM, David Cohen wrote: > On Mon, Mar 7, 2011 at 9:17 PM, Guzman Lugo, Fernando > wrote: >> On Mon, Mar 7, 2011 at 7:10 AM, Michael Jones >> wrote: >>> From e7dbe4c4b64eb114f9b0804d6af3a3ca0e78acc8 Mon Sep 17 00:00:00 2001 >>> From:

Re: [PATCH] omap: iommu: disallow mapping NULL address

2011-03-07 Thread Guzman Lugo, Fernando
On Mon, Mar 7, 2011 at 7:10 AM, Michael Jones wrote: > From e7dbe4c4b64eb114f9b0804d6af3a3ca0e78acc8 Mon Sep 17 00:00:00 2001 > From: Michael Jones > Date: Mon, 7 Mar 2011 13:36:15 +0100 > Subject: [PATCH] omap: iommu: disallow mapping NULL address > > commit c7f4ab26e3bcdaeb3e19ec658e3ad9092f1a6