On 2019-10-25 22:30, Christoph Hellwig wrote:
The definition makes very little sense.
Can you please clarify what part doesn’t make sense, and why? This is
really just an extension of this patch that got mainlined, so that
clients that use the DMA API can use IOMMU_QCOM_SYS_CACHE as well:
On 2020-02-17 07:50, Robin Murphy wrote:
On 17/02/2020 8:01 am, Christoph Hellwig wrote:
On Fri, Feb 14, 2020 at 02:58:16PM -0800, Isaac J. Manjarres wrote:
From: Liam Mark
Some devices have a memory map which contains gaps or holes.
In order for the device to have as much IOVA space as
On 2020-02-19 03:15, Will Deacon wrote:
On Tue, Feb 18, 2020 at 05:57:18PM -0800, isa...@codeaurora.org wrote:
On 2020-02-17 07:50, Robin Murphy wrote:
> On 17/02/2020 8:01 am, Christoph Hellwig wrote:
> > On Fri, Feb 14, 2020 at 02:58:16PM -0800, Isaac J. Manjarres wrote:
> > > From: Liam Mark
On 2020-02-17 08:03, Robin Murphy wrote:
On 14/02/2020 11:06 pm, Isaac J. Manjarres wrote:
From: Liam Mark
Using the best-fit algorithm, instead of the first-fit
algorithm, may reduce fragmentation when allocating
IOVAs.
What kind of pathological allocation patterns make that a serious
On 2021-01-10 23:52, Sai Prakash Ranjan wrote:
On 2021-01-11 11:52, Sai Prakash Ranjan wrote:
Hi Isaac,
I gave this series a go on chromebook and saw these warnings
and several device probe failures, logs attached below:
WARN corresponds to this code in arm_lpae_map_by_pgsize()
if
On 2021-01-06 03:56, Will Deacon wrote:
On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
commit ecd7274fb4cd ("iommu: Remove unused IOMMU_SYS_CACHE_ONLY flag")
removed unused IOMMU_SYS_CACHE_ONLY prot flag and along with it went
the memory type setting required for the
On 2020-12-23 05:44, Robin Murphy wrote:
On 2020-12-22 19:54, isa...@codeaurora.org wrote:
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The io-pgtable code constructs an array of init functions for each
page table format at compile time. This is not
On 2020-12-21 07:22, Robin Murphy wrote:
On 2020-12-18 18:59, isa...@codeaurora.org wrote:
On 2020-12-18 04:38, Robin Murphy wrote:
On 2020-12-18 08:38, Isaac J. Manjarres wrote:
The io-pgtable-arm and io-pgtable-arm-v7s source files will
be compiled as separate modules, along with the
On 2020-12-18 04:38, Robin Murphy wrote:
On 2020-12-18 08:38, Isaac J. Manjarres wrote:
The io-pgtable-arm and io-pgtable-arm-v7s source files will
be compiled as separate modules, along with the io-pgtable
source. Export the symbols for the io-pgtable init function
structures for the
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The io-pgtable code constructs an array of init functions for each
page table format at compile time. This is not ideal, as this
increases the footprint of the io-pgtable code, as well as prevents
io-pgtable
On 2020-12-22 11:27, Robin Murphy wrote:
On 2020-12-22 00:44, Isaac J. Manjarres wrote:
The SMMU driver depends on the availability of the ARM LPAE and
ARM V7S io-pgtable format code to work properly. In preparation
Nit: we don't really depend on v7s - we *can* use it if it's
available,
On 2021-01-08 10:18, Will Deacon wrote:
On Fri, Jan 08, 2021 at 11:17:25AM +0530, Sai Prakash Ranjan wrote:
On 2021-01-07 22:27, isa...@codeaurora.org wrote:
> On 2021-01-06 03:56, Will Deacon wrote:
> > On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
> > > commit
On 2021-01-07 21:47, Sai Prakash Ranjan wrote:
On 2021-01-07 22:27, isa...@codeaurora.org wrote:
On 2021-01-06 03:56, Will Deacon wrote:
On Thu, Dec 24, 2020 at 12:10:07PM +0530, Sai Prakash Ranjan wrote:
commit ecd7274fb4cd ("iommu: Remove unused IOMMU_SYS_CACHE_ONLY
flag")
removed unused
On 2021-01-12 08:00, Robin Murphy wrote:
On 2021-01-11 14:54, Isaac J. Manjarres wrote:
The iommu_map_sg() code currently iterates through the given
scatter-gather list, and in the worst case, invokes iommu_map()
for each element in the scatter-gather list, which calls into
the IOMMU driver
On 2021-03-30 21:47, Lu Baolu wrote:
On 3/31/21 11:00 AM, Isaac J. Manjarres wrote:
Add a callback for IOMMU drivers to provide a path for the
IOMMU framework to call into an IOMMU driver, which can call
into the io-pgtable code, to unmap a virtually contiguous
range of pages of the same size.
On 2021-04-01 09:47, Will Deacon wrote:
Avoid the potential for shifting values by amounts greater than the
width of their type by using a bitmap to compute page size in
iommu_pgsize().
Signed-off-by: Will Deacon
---
drivers/iommu/iommu.c | 31 ---
1 file changed,
On 2021-04-04 23:00, Lu Baolu wrote:
Hi,
On 4/2/21 9:34 AM, Isaac J. Manjarres wrote:
static size_t __iommu_unmap(struct iommu_domain *domain,
unsigned long iova, size_t size,
struct iommu_iotlb_gather *iotlb_gather)
@@ -2476,7 +2519,7
On 2021-04-06 05:15, Will Deacon wrote:
On Mon, Apr 05, 2021 at 12:11:09PM -0700, Isaac J. Manjarres wrote:
Implement the unmap_pages() callback for the ARM LPAE io-pgtable
format.
Signed-off-by: Isaac J. Manjarres
Suggested-by: Will Deacon
---
drivers/iommu/io-pgtable-arm.c | 124
On 2021-04-06 04:53, Will Deacon wrote:
On Mon, Apr 05, 2021 at 12:11:06PM -0700, Isaac J. Manjarres wrote:
From: Will Deacon
The 'addr_merge' parameter to iommu_pgsize() is a fabricated address
intended to describe the alignment requirements to consider when
choosing an appropriate page
On 2021-04-06 04:57, Will Deacon wrote:
On Mon, Apr 05, 2021 at 12:11:03PM -0700, Isaac J. Manjarres wrote:
Mapping memory into io-pgtables follows the same semantics
that unmapping memory used to follow (i.e. a buffer will be
mapped one page block per call to the io-pgtable code). This
means
On 2021-03-30 22:39, Lu Baolu wrote:
On 3/31/21 1:36 PM, isa...@codeaurora.org wrote:
On 2021-03-30 21:47, Lu Baolu wrote:
On 3/31/21 11:00 AM, Isaac J. Manjarres wrote:
Add a callback for IOMMU drivers to provide a path for the
IOMMU framework to call into an IOMMU driver, which can call
On 2021-04-07 02:57, Will Deacon wrote:
On Tue, Apr 06, 2021 at 02:02:26PM -0700, isa...@codeaurora.org wrote:
On 2021-04-06 05:15, Will Deacon wrote:
> On Mon, Apr 05, 2021 at 12:11:09PM -0700, Isaac J. Manjarres wrote:
> > Implement the unmap_pages() callback for the ARM LPAE io-pgtable
> >
On 2021-04-08 06:58, Will Deacon wrote:
On Wed, Apr 07, 2021 at 09:52:38PM -0700, Isaac J. Manjarres wrote:
Implement the unmap_pages() callback for the ARM v7s io-pgtable
format.
Signed-off-by: Isaac J. Manjarres
---
drivers/iommu/io-pgtable-arm-v7s.c | 23 ---
1 file
On 2021-04-08 06:59, Will Deacon wrote:
On Wed, Apr 07, 2021 at 09:52:32PM -0700, Isaac J. Manjarres wrote:
From: Will Deacon
The 'addr_merge' parameter to iommu_pgsize() is a fabricated address
intended to describe the alignment requirements to consider when
choosing an appropriate page
On 2021-04-08 07:32, Will Deacon wrote:
On Wed, Apr 07, 2021 at 09:52:36PM -0700, Isaac J. Manjarres wrote:
Implement the unmap_pages() callback for the ARM LPAE io-pgtable
format.
Signed-off-by: Isaac J. Manjarres
Suggested-by: Will Deacon
---
drivers/iommu/io-pgtable-arm.c | 70
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