linux-toradex.git/drivers/iommu/ipmmu-vmsa.c, branch v4.3.3

iommu/ipmmu-vmsa: Clean up DMA API usage

2015-08-06T13:35:39+00:00

With the correct DMA API calls now integrated into the io-pgtable code,
let that handle the flushing of non-coherent page table updates.

Signed-off-by: Robin Murphy 
Signed-off-by: Will Deacon

Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' and 'core' into next

2015-04-02T11:33:19+00:00

Conflicts:
	drivers/iommu/amd_iommu.c
	drivers/iommu/tegra-gart.c
	drivers/iommu/tegra-smmu.c

iommu/ipmmu-vmsa: Make use of domain_alloc and domain_free

2015-03-31T13:32:13+00:00

Implement domain_alloc and domain_free iommu-ops as a
replacement for domain_init/domain_destroy.

Signed-off-by: Joerg Roedel

iommu: ipmmu-vmsa: Add terminating entry for ipmmu_of_ids

2015-03-23T14:22:09+00:00

The of_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin 
Acked-by: Laurent Pinchart 
Signed-off-by: Joerg Roedel

iommu/ipmmu-vmsa: Fix IOMMU lookup when multiple IOMMUs are registered

2015-01-30T12:46:07+00:00

When adding a new device the driver loops over all registered IOMMUs and
calls the ipmmu_find_utlbs() function to parse the DT iommus attribute.
The function returns an error when the IOMMU referenced in DT doesn't
match the current IOMMU. The caller incorrectly breaks from the loop
immediately when the error is reported, resulting in only the first
IOMMU being considered.

Fix this, and while at it move code that isn't specific to an IOMMU
instance out of the loop.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Joerg Roedel

iommu/ipmmu-vmsa: Use the ARM LPAE page table allocator

2015-01-26T12:44:23+00:00

Replace the custom page table allocation implementation with the
standard allocator.

The driver loses the ability to map 64kB chunkgs using the PTE
contiguous hint, hence the removal of the SZ_64K page size from the
IOMMU page sizes bitmap.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Joerg Roedel

iommu/ipmmu-vmsa: Remove platform data support

2015-01-16T16:03:05+00:00

No board file instantiates the IPMMU using platform data. Now that we
have DT support, get rid of platform data.

Signed-off-by: Laurent Pinchart

iommu/ipmmu-vmsa: Support multiple micro TLBs per device

2015-01-16T16:03:05+00:00

Devices such as the system DMA controller are connected to multiple
micro TLBs of the same IOMMU. Support this.

Selective enabling of micro TLBs based on runtime device usage isn't
possible at the moment due to lack of support in the IOMMU and DMA
mapping APIs. Support for devices connected to different IOMMUs is also
unsupported for the same reason.

Signed-off-by: Laurent Pinchart

iommu/ipmmu-vmsa: Add device tree support

2015-01-16T16:03:04+00:00

Make platform data optional when the device is instantiated from DT and
look up the micro-TLB number in the bus master DT node.

Signed-off-by: Laurent Pinchart

iommu/ipmmu-vmsa: Invalidate TLB after unmapping

2015-01-16T16:03:04+00:00

The TLB must be invalidated after unmapping memory to remove stale TLB
entries. this was supposed to be performed already, but a bug in the
driver prevented the TLB invalidate function from being called. Fix it.

Signed-off-by: Laurent Pinchart