linux-toradex.git/arch/tile/include/asm/io.h, branch v3.2.18

arch/tile: various header improvements for building drivers

2011-05-04T18:40:54+00:00

This change adds a number of missing headers in asm (fb.h, parport.h,
serial.h, and vga.h) using the minimal generic versions.

It also adds a number of missing interfaces that showed up as build
failures when trying to build various drivers not normally included in the
"tile" distribution: ioremap_wc(), memset_io(), io{read,write}{16,32}be(),
virt_to_bus(), bus_to_virt(), irq_canonicalize(), __pte(), __pgd(),
and __pmd().  I also added a cast in virt_to_page() since not all callers
pass a pointer.

I fixed  to properly include a __KERNEL__ guard for the
__ARCH_WANT_STAT64 symbol, and  to use __builtin_bswap32()
even for our 64-bit architecture, since the same code is produced.

I added an export for get_cycles(), since it's used in some modules.

And I made  properly include the __KERNEL__ guard,
even though it's not yet exported, since it likely will be soon.

Signed-off-by: Chris Metcalf

pci root complex: support for tile architecture

2010-11-24T18:13:49+00:00

This change enables PCI root complex support for TILEPro.  Unlike
TILE-Gx, TILEPro has no support for memory-mapped I/O, so the PCI
support consists of hypervisor upcalls for PIO, DMA, etc.  However,
the performance is fine for the devices we have tested with so far
(1Gb Ethernet, SATA, etc.).

The  header was tweaked to be a little bit more aggressive
about disabling attempts to map/unmap IO port space.  The hacky
 header was rolled into the  header
and the result was simplified.  Both of the latter two headers were
preliminary versions not meant for release before now - oh well.

There is one quirk for our TILEmpower platform, which accidentally
negotiates up to 5GT and needs to be kicked down to 2.5GT.

Signed-off-by: Chris Metcalf

arch/tile: fix memcpy_fromio()/memcpy_toio() signatures

2010-09-15T15:17:04+00:00

This tripped up a driver (not yet committed to git).  Fix it now.

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