On Tue, Jul 08, 2014 at 05:52:18PM +0100, Mitchel Humpherys wrote:
Fix some issues reported by checkpatch.pl. Mostly whitespace, but also
includes min=min_t, kzalloc=kcalloc, and kmalloc=kmalloc_array.
Cheers, applied. I dropped the big list of things you fixed and just kept
the one you left,
[Adding Alex; question below]
On Thu, Jul 03, 2014 at 03:22:37PM +0100, Varun Sethi wrote:
+static int __arm_smmu_get_pci_sid(struct pci_dev *pdev, u16 alias, void
+*data) {
+ *((u16 *)data) = alias;
+ return 0; /* Continue walking */
+}
[...]
@@ -1598,15 +1642,36 @@ static
On Fri, Jul 04, 2014 at 04:29:17PM +0100, Thierry Reding wrote:
From: Thierry Reding tred...@nvidia.com
This commit introduces a generic device tree binding for IOMMU devices.
Only a very minimal subset is described here, but it is enough to cover
the requirements of both the Exynos System
On Wed, 2014-07-09 at 14:26 +0100, Will Deacon wrote:
[Adding Alex; question below]
On Thu, Jul 03, 2014 at 03:22:37PM +0100, Varun Sethi wrote:
+static int __arm_smmu_get_pci_sid(struct pci_dev *pdev, u16 alias, void
+*data) {
+ *((u16 *)data) = alias;
+ return 0; /*
Hi Will,
-Original Message-
From: Will Deacon [mailto:will.dea...@arm.com]
Sent: Wednesday, July 09, 2014 6:57 PM
To: Sethi Varun-B16395; alex.william...@redhat.com
Cc: linux-arm-ker...@lists.infradead.org; iommu@lists.linux-
foundation.org; thierry.red...@gmail.com; a...@arndb.de;
On Tue, Jul 8, 2014 at 6:26 AM, Alexander Gordeev agord...@redhat.com wrote:
On Mon, Jul 07, 2014 at 01:40:48PM -0600, Bjorn Helgaas wrote:
Can you quantify the benefit of this? Can't a device already use
MSI-X to request exactly the number of vectors it can use? (I know
A Intel AHCI
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:
[Adding Alex; question below]
On Thu, Jul 03, 2014 at 03:22:37PM +0100, Varun Sethi wrote:
+static int __arm_smmu_get_pci_sid(struct pci_dev *pdev, u16 alias, void
Hi Thierry,
On Wed, Jul 09, 2014 at 03:21:27PM +0100, Thierry Reding wrote:
On Wed, Jul 09, 2014 at 02:40:50PM +0100, Will Deacon wrote:
I would like to move the ARM SMMU driver over to this for 3.18, if possible.
One use-case there is the ability to describe groups of masters behind a
Some IOMMUs, such as the ARM SMMU, support two stages of translation.
The idea behind such a scheme is to allow a guest operating system to
use the IOMMU for DMA mappings in the first stage of translation, with
the hypervisor then installing mappings in the second stage to provide
isolation of the
VFIO allows devices to be safely handed off to userspace by putting
them behind an IOMMU configured to ensure DMA and interrupt isolation.
This enables userspace KVM clients, such as kvmtool and qemu, to further
map the device into a virtual machine.
With IOMMUs such as the ARM SMMU, it is then
Hello,
This is v2 of the RFC I originally posted here:
RFCv1: http://permalink.gmane.org/gmane.linux.kernel.iommu/5552
It's changed significantly since then, based on helpful feedback from
Alex. In particular, I no longer butcher the IOMMU API, instead making
use of a new iommu_attr to
When domains are set with the DOMAIN_ATTR_NESTING flag, we must ensure
that we allocate them to stage-2 context banks if the hardware permits
it.
This patch adds support for the attribute to the ARM SMMU driver, with
the actual stage being determined depending on the features supported
by the
On Wed, 2014-07-09 at 19:28 +0100, Will Deacon wrote:
Hello,
This is v2 of the RFC I originally posted here:
RFCv1: http://permalink.gmane.org/gmane.linux.kernel.iommu/5552
It's changed significantly since then, based on helpful feedback from
Alex. In particular, I no longer butcher
On 7/8/2014 4:49 PM, Rob Clark wrote:
On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan ohau...@codeaurora.org wrote:
Hi Hiroshi,
On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
Hi Olav,
Olav Haugan ohau...@codeaurora.org writes:
Mapping and unmapping are more often than not in the critical path.
On 5/15/2014 7:40 PM, Laurent Pinchart wrote:
Cache the micro-TLB number in archdata allocated in the .add_device
handler instead of looking it up when the deviced is attached and
detached. This simplifies the .attach_dev and .detach_dev operations and
prepares for DT support.
[snip]
On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan ohau...@codeaurora.org wrote:
On 7/8/2014 4:49 PM, Rob Clark wrote:
On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan ohau...@codeaurora.org wrote:
Hi Hiroshi,
On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
Hi Olav,
Olav Haugan ohau...@codeaurora.org writes:
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