On 7/11/2014 3:20 AM, Joerg Roedel wrote:
> On Mon, Jun 30, 2014 at 09:51:51AM -0700, Olav Haugan wrote:
>> +int iommu_map_range(struct iommu_domain *domain, unsigned int iova,
>> +struct scatterlist *sg, unsigned int len, int prot)
>> +{
>> +if (unlikely(domain->ops->map_range
On Mon, Jun 30, 2014 at 09:51:51AM -0700, Olav Haugan wrote:
> +int iommu_map_range(struct iommu_domain *domain, unsigned int iova,
> + struct scatterlist *sg, unsigned int len, int prot)
> +{
> + if (unlikely(domain->ops->map_range == NULL))
> + return -ENODEV;
> +
On Thu, Jul 10, 2014 at 6:43 PM, Olav Haugan wrote:
> On 7/9/2014 5:40 PM, Rob Clark wrote:
>> On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan wrote:
>>> On 7/8/2014 4:49 PM, Rob Clark wrote:
On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
> Hi Hiroshi,
>
> On 7/3/2014 9:29 PM, H
On 7/9/2014 5:40 PM, Rob Clark wrote:
> On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan wrote:
>> On 7/8/2014 4:49 PM, Rob Clark wrote:
>>> On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
Hi Hiroshi,
On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
> Hi Olav,
>
> Olav Haugan wr
On Thu, Jul 10, 2014 at 3:10 AM, Thierry Reding
wrote:
> On Wed, Jul 09, 2014 at 08:40:21PM -0400, Rob Clark wrote:
>> On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan wrote:
>> > On 7/8/2014 4:49 PM, Rob Clark wrote:
>> >> On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan
>> >> wrote:
>> >>> Hi Hiroshi,
On Wed, Jul 09, 2014 at 08:40:21PM -0400, Rob Clark wrote:
> On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan wrote:
> > On 7/8/2014 4:49 PM, Rob Clark wrote:
> >> On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
> >>> Hi Hiroshi,
> >>>
> >>> On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
> Hi Olav,
On Wed, Jul 9, 2014 at 8:03 PM, Olav Haugan wrote:
> On 7/8/2014 4:49 PM, Rob Clark wrote:
>> On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
>>> Hi Hiroshi,
>>>
>>> On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
Hi Olav,
Olav Haugan writes:
> Mapping and unmapping are more
On 7/8/2014 4:49 PM, Rob Clark wrote:
> On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
>> Hi Hiroshi,
>>
>> On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
>>> Hi Olav,
>>>
>>> Olav Haugan writes:
>>>
Mapping and unmapping are more often than not in the critical path.
map_range and unmap_r
On Tue, Jul 8, 2014 at 5:53 PM, Olav Haugan wrote:
> Hi Hiroshi,
>
> On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
>> Hi Olav,
>>
>> Olav Haugan writes:
>>
>>> Mapping and unmapping are more often than not in the critical path.
>>> map_range and unmap_range allows SMMU driver implementations to optimi
Hi Hiroshi,
On 7/3/2014 9:29 PM, Hiroshi Doyu wrote:
> Hi Olav,
>
> Olav Haugan writes:
>
>> Mapping and unmapping are more often than not in the critical path.
>> map_range and unmap_range allows SMMU driver implementations to optimize
>> the process of mapping and unmapping buffers into the S
Hi Olav,
Olav Haugan writes:
> Mapping and unmapping are more often than not in the critical path.
> map_range and unmap_range allows SMMU driver implementations to optimize
> the process of mapping and unmapping buffers into the SMMU page tables.
> Instead of mapping one physical address, do TL
nux-foundation.org;
> thierry.red...@gmail.com; vgan...@codeaurora.org; linux-arm-
> ker...@lists.infradead.org
> Subject: Re: [RFC/PATCH 2/7] iommu-api: Add map_range/unmap_range
> functions
>
> Hi Olav,
>
> On Mon, Jun 30, 2014 at 05:51:51PM +0100, Olav Haugan wrote:
> > Mapp
Hi Olav,
On Mon, Jun 30, 2014 at 05:51:51PM +0100, Olav Haugan wrote:
> Mapping and unmapping are more often than not in the critical path.
> map_range and unmap_range allows SMMU driver implementations to optimize
> the process of mapping and unmapping buffers into the SMMU page tables.
> Instead
On Mon, Jun 30, 2014 at 09:51:51AM -0700, Olav Haugan wrote:
[...]
> +int iommu_map_range(struct iommu_domain *domain, unsigned int iova,
> + struct scatterlist *sg, unsigned int len, int prot)
> +{
> + if (unlikely(domain->ops->map_range == NULL))
> + return -ENODEV
Mapping and unmapping are more often than not in the critical path.
map_range and unmap_range allows SMMU driver implementations to optimize
the process of mapping and unmapping buffers into the SMMU page tables.
Instead of mapping one physical address, do TLB operation (expensive),
mapping, do TLB
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