On 2014/10/2 18:09, Joerg Roedel wrote:
> From: Joerg Roedel
>
> The VT-d specification states that an RMRR entry in the DMAR
> table needs to specify the full path to the device. This is
> also how newer Linux kernels implement it.
>
> Unfortunatly older drivers just match for the target devic
On Mon, Oct 06 2014 at 03:28:16 AM, Varun Sethi
wrote:
> This flag is used for specifying access to device memory. SMMU would apply
> device memory attributes for a DMA transaction. This is required for setting
> access to GIC registers, for generating message interrupts. This would ensure
> tha
On 9/25/2014 10:01 AM, Joerg Roedel wrote:
On Mon, Aug 11, 2014 at 03:45:50PM -0700, Olav Haugan wrote:
+static inline int iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
+ struct scatterlist *sg, unsigned int nents,
+ int p
On 10/6/2014 4:04 AM, Will Deacon wrote:
Hi Varun,
[adding the Qualcomm guys, as I have an open question below]
On Mon, Oct 06, 2014 at 11:28:15AM +0100, Varun Sethi wrote:
This is used for indicating device memory type for a DMA transaction. IOMMU
driver would set up attributes indicationg ac
On Mon, Oct 06, 2014 at 01:50:40PM +0300, Laurent Pinchart wrote:
> Hi Thierry and Will,
>
> On Monday 06 October 2014 11:52:50 Thierry Reding wrote:
> > On Fri, Oct 03, 2014 at 04:08:50PM +0100, Will Deacon wrote:
> > > On Wed, Oct 01, 2014 at 09:46:10AM +0100, Thierry Reding wrote:
> > >> On Tue
Hi Alex,
On Wed, Jul 09, 2014 at 03:13:04PM +0100, Alex Williamson wrote:
> On Wed, 2014-07-09 at 14:26 +0100, Will Deacon wrote:
> > pci_find_dma_isolation_root doesn't exist in any of the trees I have. Alex,
> > is this queued anywhere and do I actually need it?
>
> That function was in the v3
Hi Will,
> -Original Message-
> From: Will Deacon [mailto:will.dea...@arm.com]
> Sent: Monday, October 06, 2014 4:34 PM
> To: Sethi Varun-B16395
> Cc: iommu@lists.linux-foundation.org; mitch...@codeaurora.org;
> ohau...@codeaurora.org
> Subject: Re: [RFC][PATCH 1/2] Introduce the IOMMU_DEV
> -Original Message-
> From: Will Deacon [mailto:will.dea...@arm.com]
> Sent: Monday, October 06, 2014 4:47 PM
> To: Sethi Varun-B16395
> Cc: iommu@lists.linux-foundation.org
> Subject: Re: [RFC][PATCH 2/2] Add support of the IOMMU_DEVICE flag.
>
> On Mon, Oct 06, 2014 at 11:28:16AM +010
On Mon, Oct 06, 2014 at 11:28:16AM +0100, Varun Sethi wrote:
> This flag is used for specifying access to device memory. SMMU would apply
> device memory attributes for a DMA transaction. This is required for setting
> access to GIC registers, for generating message interrupts. This would ensure
>
Hi Varun,
[adding the Qualcomm guys, as I have an open question below]
On Mon, Oct 06, 2014 at 11:28:15AM +0100, Varun Sethi wrote:
> This is used for indicating device memory type for a DMA transaction. IOMMU
> driver would set up attributes indicationg access to device memory.
>
> Signed-off-b
Hi Thierry and Will,
On Monday 06 October 2014 11:52:50 Thierry Reding wrote:
> On Fri, Oct 03, 2014 at 04:08:50PM +0100, Will Deacon wrote:
> > On Wed, Oct 01, 2014 at 09:46:10AM +0100, Thierry Reding wrote:
> >> On Tue, Sep 30, 2014 at 05:00:35PM +0100, Will Deacon wrote:
> >>> On Thu, Sep 25, 2
This is used for indicating device memory type for a DMA transaction. IOMMU
driver would set up attributes indicationg access to device memory.
Signed-off-by: Varun Sethi
---
include/linux/iommu.h |1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.
This flag is used for specifying access to device memory. SMMU would apply
device memory attributes for a DMA transaction. This is required for setting
access to GIC registers, for generating message interrupts. This would ensure
that
transactions targetting device memory are not gathered or reor
Hello,
On 2014-10-05 15:54, Akinobu Mita wrote:
This makes CMA memory area size zero for x86 in default configuration
(doesn't change on the other architectures). If default CMA size is
zero, DMA_CMA is disabled. It can be enabled by passing cma= to the
kernel.
This makes less impact on x86.
On Fri, Oct 03, 2014 at 04:08:50PM +0100, Will Deacon wrote:
> Hi Thierry,
>
> On Wed, Oct 01, 2014 at 09:46:10AM +0100, Thierry Reding wrote:
> > On Tue, Sep 30, 2014 at 05:00:35PM +0100, Will Deacon wrote:
> > > On Thu, Sep 25, 2014 at 07:40:23AM +0100, Thierry Reding wrote:
> > [...]
> > > > So
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