linux.git/arch/tile/include/asm/device.h, branch v3.7

tile pci: enable IOMMU to support DMA for legacy devices

2012-07-18T20:40:17+00:00

This change uses the TRIO IOMMU to map the PCI DMA space and physical
memory at different addresses.  We also now use the dma_mapping_ops
to provide support for non-PCI DMA, PCIe DMA (64-bit) and legacy PCI
DMA (32-bit).  We use the kernel's software I/O TLB framework
(i.e. bounce buffers) for the legacy 32-bit PCI device support since
there are a limited number of TLB entries in the IOMMU and it is
non-trivial to handle indexing, searching, matching, etc.  For 32-bit
devices the performance impact of bounce buffers should not be a concern.

Signed-off-by: Chris Metcalf

tile: use generic-y format for one-line asm-generic headers

2011-06-03T21:36:18+00:00

This lets us remove a lot of one-line wrapper header files.
See commit d8ecc5cd8e227bc318513b5306ae88a474b8886d for context.

Signed-off-by: Chris Metcalf

arch/tile: core support for Tilera 32-bit chips.

2010-06-04T21:11:18+00:00

This change is the core kernel support for TILEPro and TILE64 chips.
No driver support (except the console driver) is included yet.

This includes the relevant Linux headers in asm/; the low-level
low-level "Tile architecture" headers in arch/, which are
shared with the hypervisor, etc., and are build-system agnostic;
and the relevant hypervisor headers in hv/.

Signed-off-by: Chris Metcalf 
Acked-by: Arnd Bergmann 
Acked-by: FUJITA Tomonori 
Reviewed-by: Paul Mundt