linux-toradex.git/arch/sh/include/asm/io.h, branch v3.4.76 Linux kernel for Apalis and Colibri modules Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh 2012-03-30T07:09:17+00:00 Linus Torvalds torvalds@linux-foundation.org 2012-03-30T07:09:17+00:00 f52b69f86e27903d6896ed5fa7cd280fec8de532 Pull SuperH updates from Paul Mundt. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (25 commits) sh: Support I/O space swapping where needed. sh: use set_current_blocked() and block_sigmask() sh: no need to reset handler if SA_ONESHOT sh: intc: Fix up section mismatch for intc_ack_data sh: select ARCH_DISCARD_MEMBLOCK. sh: Consolidate duplicate _32/_64 unistd definitions. sh: ecovec: switch SDHI controllers to card polling sh: Avoid exporting unimplemented syscalls. sh: add platform_device for RSPI in setup-sh7757 SH: pci-sh7780: enable big-endian operation. serial: sh-sci: fix a race of DMA submit_tx on transfer sh: dma: Collect up CHCR of SH7763, SH7764, SH7780 and SH7785 sh: dma: Collect up CHCR of SH7723 and SH7730 sh/next: Fix build fail by asm/system.h in asm/bitops.h arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible sh: cpufreq: Wire up scaling_available_freqs support. sh: cpufreq: notify about rate rounding fallback. sh: cpufreq: Support CPU clock frequency table. sh: cpufreq: struct device lookup from CPU topology. sh: cpufreq: percpu struct clk accounting. ... 
Pull SuperH updates from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (25 commits)
  sh: Support I/O space swapping where needed.
  sh: use set_current_blocked() and block_sigmask()
  sh: no need to reset handler if SA_ONESHOT
  sh: intc: Fix up section mismatch for intc_ack_data
  sh: select ARCH_DISCARD_MEMBLOCK.
  sh: Consolidate duplicate _32/_64 unistd definitions.
  sh: ecovec: switch SDHI controllers to card polling
  sh: Avoid exporting unimplemented syscalls.
  sh: add platform_device for RSPI in setup-sh7757
  SH: pci-sh7780: enable big-endian operation.
  serial: sh-sci: fix a race of DMA submit_tx on transfer
  sh: dma: Collect up CHCR of SH7763, SH7764, SH7780 and SH7785
  sh: dma: Collect up CHCR of SH7723 and SH7730
  sh/next: Fix build fail by asm/system.h in asm/bitops.h
  arch/sh/drivers/dma/{dma-g2,dmabrg}.c: ensure arguments to request_irq and free_irq are compatible
  sh: cpufreq: Wire up scaling_available_freqs support.
  sh: cpufreq: notify about rate rounding fallback.
  sh: cpufreq: Support CPU clock frequency table.
  sh: cpufreq: struct device lookup from CPU topology.
  sh: cpufreq: percpu struct clk accounting.
  ...
sh: Support I/O space swapping where needed. 2012-03-29T07:05:10+00:00 Paul Mundt lethal@linux-sh.org 2012-03-29T07:05:10+00:00 b7e68d6876dfbab087bc3859211a9efc74cbe30c This adopts a trimmed down version of the MIPS port mangling interface limited to the I/O swabbing for platforms that can't use little endian accessors. For platforms with mixed I/O spaces involving PCI it will still be necessary to enable byte swapping at the host controller level. Attention needs to be paid to all of host controller endianness, CPU endianness, and whether I/O accesses are explicitly swapped or not via SWAP_IO_SPACE. Fortunately the platforms that need this are in the minority. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
This adopts a trimmed down version of the MIPS port mangling interface
limited to the I/O swabbing for platforms that can't use little endian
accessors. For platforms with mixed I/O spaces involving PCI it will
still be necessary to enable byte swapping at the host controller level.
Attention needs to be paid to all of host controller endianness, CPU
endianness, and whether I/O accesses are explicitly swapped or not via
SWAP_IO_SPACE. Fortunately the platforms that need this are in the
minority.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Disintegrate asm/system.h for SH 2012-03-28T17:30:03+00:00 David Howells dhowells@redhat.com 2012-03-28T17:30:03+00:00 e839ca528718e68cad32a307dc9aabf01ef3eb05 Disintegrate asm/system.h for SH. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-sh@vger.kernel.org 
Disintegrate asm/system.h for SH.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-sh@vger.kernel.org
sh: Fix up legacy PTEA space attribute mapping. 2011-01-11T06:02:59+00:00 Paul Mundt lethal@linux-sh.org 2011-01-11T06:02:59+00:00 efb3e34b6176d30c4fe8635fa8e1beb6280cc2cd When p3_ioremap() was converted to ioremap_prot() there was some breakage introduced where the 29-bit segmentation logic would trap the area range and return an identity mapping without having allowed the area specification to force mapping through page tables. This wires up a PCC mask for pgprot verification to work out whether to short-circuit the identity mapping on legacy parts, restoring the previous behaviour. Reported-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Cc: stable@kernel.org Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
When p3_ioremap() was converted to ioremap_prot() there was some breakage
introduced where the 29-bit segmentation logic would trap the area range
and return an identity mapping without having allowed the area
specification to force mapping through page tables. This wires up a PCC
mask for pgprot verification to work out whether to short-circuit the
identity mapping on legacy parts, restoring the previous behaviour.

Reported-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: stable@kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: Kill off deprecated ctrl_in/out I/O routines. 2011-01-11T03:36:37+00:00 Paul Mundt lethal@linux-sh.org 2011-01-11T03:36:37+00:00 0d6ae8fa945aba732edadce1ead9929520d61b99 Now that all of the in-tree drivers have been converted to portable I/O accessors, we can kill off the legacy ones with extreme prejudice. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
Now that all of the in-tree drivers have been converted to portable I/O
accessors, we can kill off the legacy ones with extreme prejudice.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: machvec IO death. 2010-11-01T13:49:04+00:00 Paul Mundt lethal@linux-sh.org 2010-11-01T13:49:04+00:00 37b7a97884ba64bf7d403351ac2a9476ab4f1bba This takes a bit of a sledgehammer to the machvec I/O routines. The iomem case requires no special casing and so can just be dropped outright. This only leaves the ioport casing for PCI and SuperIO mangling. With the SuperIO case going through the standard ioport mapping, it's possible to replace everything with generic routines. With this done the standard I/O routines are tidied up and NO_IOPORT now gets default-enabled for the vast majority of boards. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
This takes a bit of a sledgehammer to the machvec I/O routines. The
iomem case requires no special casing and so can just be dropped
outright. This only leaves the ioport casing for PCI and SuperIO
mangling. With the SuperIO case going through the standard ioport
mapping, it's possible to replace everything with generic routines.

With this done the standard I/O routines are tidied up and NO_IOPORT
now gets default-enabled for the vast majority of boards.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: support for platforms without PIO. 2010-06-02T07:31:42+00:00 Paul Mundt lethal@linux-sh.org 2010-05-25T11:06:13+00:00 86e4dd5add77ab809f5427391dfabb8f78cbcb58 This extends some of the existing special casing for HAS_IOPORT platforms and gets it to the point where platforms can begin to conditionally select it. The major changes here are that the PIO routines themselves go away completely, including all of the machvec port mapping wrappers. With this in place it's possible for any non-machvec abusing platform to disable PIO completely. At present this is left as an opt-in until the abusers are the odd ones out instead of the majority. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
This extends some of the existing special casing for HAS_IOPORT
platforms and gets it to the point where platforms can begin to
conditionally select it.

The major changes here are that the PIO routines themselves go away
completely, including all of the machvec port mapping wrappers. With this
in place it's possible for any non-machvec abusing platform to disable
PIO completely. At present this is left as an opt-in until the abusers
are the odd ones out instead of the majority.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: reworked dynamic PMB mapping. 2010-03-02T07:40:06+00:00 Paul Mundt lethal@linux-sh.org 2010-02-23T07:20:53+00:00 90e7d649d86f21d478dc134f74c88e19dd472393 This implements a fairly significant overhaul of the dynamic PMB mapping code. The primary change here is that the PMB gets its own VMA that follows the uncached mapping and we attempt to be a bit more intelligent with dynamic sizing, multi-entry mapping, and so forth. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
This implements a fairly significant overhaul of the dynamic PMB mapping
code. The primary change here is that the PMB gets its own VMA that
follows the uncached mapping and we attempt to be a bit more intelligent
with dynamic sizing, multi-entry mapping, and so forth.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: Provide uncached I/O helpers. 2010-02-18T04:23:30+00:00 Paul Mundt lethal@linux-sh.org 2010-02-18T04:23:30+00:00 b8f7918f332873a79e4c820e90e7a245ce4d3042 There are lots of registers that can only be updated from the uncached mapping, so we add some helpers for those cases in order to make it easier to ensure that we only make the jump when it's absolutely necessary. Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
There are lots of registers that can only be updated from the uncached
mapping, so we add some helpers for those cases in order to make it
easier to ensure that we only make the jump when it's absolutely
necessary.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
sh: Fix up the ioremap_fixed() build for nommu. 2010-01-28T09:17:29+00:00 Paul Mundt lethal@linux-sh.org 2010-01-28T09:17:29+00:00 d627a2ebd1a303aa4ac1962c553d1e8738735d01 arch/sh/kernel/setup.c:455: error: implicit declaration of function 'ioremap_fixed_init' Signed-off-by: Paul Mundt <lethal@linux-sh.org> 
arch/sh/kernel/setup.c:455: error: implicit declaration of function 'ioremap_fixed_init'

Signed-off-by: Paul Mundt <lethal@linux-sh.org>