This forces testing of on-demand page table allocation code.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Disabling the round-robin allocator results in reusing the same
dma-addresses again very fast. This is a good test if the iotlb flushing
is working correctly.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This parameter is not longer necessary when aperture increases
dynamically.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

By dynamically increasing the aperture the extended allocator is now
ready for use.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This patch makes sure no reserved addresses are allocated in an dma_ops
domain when the aperture is increased dynamically.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This patch prepares the dynamic increasement of dma_ops domain
apertures.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Simplify the code a little bit by using the same unit for all address
space related state in the dma_ops domain structure.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This patch changes the AMD IOMMU address allocator to allow up to 32
aperture ranges per dma_ops domain.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

The code will be required when the aperture size increases dynamically
in the extended address allocator.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This patch makes page table allocation usable for dma_ops code.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This is a preperation for extended address allocator.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This iommu_op can tell if domain have a specific capability, like snooping
control for Intel IOMMU, which can be used by other components of kernel to
adjust the behaviour.
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

We try to avoid this type of ifdef and we can safely remove this
ifdef.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

This converts X86 and IA64 to use include/linux/dma-mapping.h.

It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This patch converts dma_map_single and dma_unmap_single to use
map_page and unmap_page respectively and removes unnecessary
map_single and unmap_single in struct dma_mapping_ops.

This leaves intel-iommu's dma_map_single and dma_unmap_single since
IA64 uses them. They will be removed after the unification.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

This is a preparation of struct dma_mapping_ops unification. We use
map_page and unmap_page instead of map_single and unmap_single.

We will remove map_single and unmap_single hooks in the last patch in
this patchset.
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

The #ifdef's are no longer necessary when the iommu-api and the amd
iommu updates are merged together.
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: cleanup, reduce kernel size a bit, avoid sparse warning

Fixes sparse warning:
arch/x86/kernel/amd_iommu.c:1299:6: warning: symbol 'prealloc_protection_domains' was not declared. Should it be static?
Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see total number of map requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see amount of allocated io memory in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of domain tlb flushes in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of single iommu domain tlb flushes in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of requests for more than one page in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of free_coherent requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of alloc_coherent requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of unmap_sg requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of map_sg requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of unmap_single requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of map_single requests in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: see number of completion wait events in debugfs
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: create a new debugfs directory
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: cleanup
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: use bool instead of int for iommu->need_sync
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: use generic dev_name instead of own function
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: also hotplug devices benefit from device isolation
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: adds a new protection domain flag
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: add a generic function to lockup addresses in protection domains
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: add a generic function to unmap pages into protection domains
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>

Impact: add a generic function to map pages into protection domains
Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>