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  1. 27 1月, 2009 1 次提交
  3. 22 1月, 2009 1 次提交
  5. 20 1月, 2009 1 次提交
    • G
      i.MX31: Image Processing Unit DMA and IRQ drivers · 5296b56d
      由 Guennadi Liakhovetski 提交于 
      i.MX3x SoCs contain an Image Processing Unit, consisting of a Control
Module (CM), Display Interface (DI), Synchronous Display Controller (SDC),
Asynchronous Display Controller (ADC), Image Converter (IC), Post-Filter
(PF), Camera Sensor Interface (CSI), and an Image DMA Controller (IDMAC).
CM contains, among other blocks, an Interrupt Generator (IG) and a Clock
and Reset Control Unit (CRCU). This driver serves IDMAC and IG. They are
supported over dmaengine and irq-chip APIs respectively.

IDMAC is a specialised DMA controller, its DMA channels cannot be used for
general-purpose operations, even though it might be possible to configure
a memory-to-memory channel for memcpy operation. This driver will not work
with generic dmaengine clients, clients, wishing to use it must use
respective wrapper structures, they also must specify which channels they
require, as channels are hard-wired to specific IPU functions.
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>
      5296b56d
  7. 15 1月, 2009 1 次提交
  9. 14 1月, 2009 1 次提交
  11. 12 1月, 2009 5 次提交
  13. 09 1月, 2009 16 次提交
  15. 08 1月, 2009 10 次提交
    • B
      [ARM] footbridge: dc21285.c warning fixes · 0dc6c490
      由 Ben Dooks 提交于 
      The dc21285 requests a number of IRQs that it doesn't really
care whether they get added. Change to use a macro that ensures
that at-least the user gets warned if they fail to add, which
also stops the warnings from __unused_result on request_irq().

dc21285.c:337: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:339: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:341: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:343: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:345: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      0dc6c490
    • B
      [ARM] footbridge: add isa_init_irq() to common header · 39ebfd3f
      由 Ben Dooks 提交于 
      isa_init_irq() is defined in arch/arm/mach-footbridge/isa-irq.c
and used in arch/arm/mach-footbridge/common.c but there is no
definition in any header. Move the definition in common.c to
common.h to stop the sparse warning:

isa-irq.c:118:13: warning: symbol 'isa_init_irq' was not declared.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      39ebfd3f
    • B
      [ARM] arch/arm/kernel/isa.c: missing definition of register_isa_ports · 87e0d6cc
      由 Ben Dooks 提交于 
      arch/arm/kernel/isa.c should include <linux/io.h> to get the
definition of register_io_ports() at-least when compiling for
footbridge to fix the following sparse warning:

isa.c:68:1: warning: symbol 'register_isa_ports' was not declared.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
      87e0d6cc
    • D
      NOMMU: Make VMAs per MM as for MMU-mode linux · 8feae131
      由 David Howells 提交于 
      Make VMAs per mm_struct as for MMU-mode linux.  This solves two problems:

 (1) In SYSV SHM where nattch for a segment does not reflect the number of
     shmat's (and forks) done.

 (2) In mmap() where the VMA's vm_mm is set to point to the parent mm by an
     exec'ing process when VM_EXECUTABLE is specified, regardless of the fact
     that a VMA might be shared and already have its vm_mm assigned to another
     process or a dead process.

A new struct (vm_region) is introduced to track a mapped region and to remember
the circumstances under which it may be shared and the vm_list_struct structure
is discarded as it's no longer required.

This patch makes the following additional changes:

 (1) Regions are now allocated with alloc_pages() rather than kmalloc() and
     with no recourse to __GFP_COMP, so the pages are not composite.  Instead,
     each page has a reference on it held by the region.  Anything else that is
     interested in such a page will have to get a reference on it to retain it.
     When the pages are released due to unmapping, each page is passed to
     put_page() and will be freed when the page usage count reaches zero.

 (2) Excess pages are trimmed after an allocation as the allocation must be
     made as a power-of-2 quantity of pages.

 (3) VMAs are added to the parent MM's R/B tree and mmap lists.  As an MM may
     end up with overlapping VMAs within the tree, the VMA struct address is
     appended to the sort key.

 (4) Non-anonymous VMAs are now added to the backing inode's prio list.

 (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of
     the backing region.  The VMA and region structs will be split if
     necessary.

 (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory
     segment instead of all the attachments at that addresss.  Multiple
     shmat()'s return the same address under NOMMU-mode instead of different
     virtual addresses as under MMU-mode.

 (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode.

 (8) /proc/maps is now the global list of mapped regions, and may list bits
     that aren't actually mapped anywhere.

 (9) /proc/meminfo gains a line (tagged "MmapCopy") that indicates the amount
     of RAM currently allocated by mmap to hold mappable regions that can't be
     mapped directly.  These are copies of the backing device or file if not
     anonymous.

These changes make NOMMU mode more similar to MMU mode.  The downside is that
NOMMU mode requires some extra memory to track things over NOMMU without this
patch (VMAs are no longer shared, and there are now region structs).
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Tested-by: NMike Frysinger <vapier.adi@gmail.com>
Acked-by: NPaul Mundt <lethal@linux-sh.org>
      8feae131
    • D
      NOMMU: Rename ARM's struct vm_region · 9c93af1e
      由 David Howells 提交于 
      Rename ARM's struct vm_region so that I can introduce my own global version
for NOMMU.  It's feasible that the ARM version may wish to use my global one
instead.

The NOMMU vm_region struct defines areas of the physical memory map that are
under mmap.  This may include chunks of RAM or regions of memory mapped
devices, such as flash.  It is also used to retain copies of file content so
that shareable private memory mappings of files can be made.  As such, it may
be compatible with what is described in the banner comment for ARM's vm_region
struct.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
      9c93af1e
    • B
      PCI: arm: use generic INTx swizzle from PCI core · 06df6993
      由 Bjorn Helgaas 提交于 
      Use the generic pci_common_swizzle() instead of arch-specific code.
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      06df6993
    • B
      PCI: arm: use generic pci_swizzle_interrupt_pin() · f14d766a
      由 Bjorn Helgaas 提交于 
      Use the generic pci_swizzle_interrupt_pin() instead of arch-specific code.

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      f14d766a
    • D
      USB: add imx udc gadget driver · 2a4f136f
      由 Darius Augulis 提交于 
      Implementation of USB device driver integrated in Freescale's i.MXL
processor.

Adds USB device driver for i.MXL.
Signed-off-by: NDarius Augulis <augulis.darius@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      2a4f136f
    • T
      USB: otg: sharable otg transceiver ops · 3cb22d65
      由 Tony Lindgren 提交于 
      Move otg_get/set/put_transceiver() from omap specific code
to common otg.c so other upcoming drivers can share them.

[ dbrownell@users.sourceforge.net: move to drivers/usb/otg, dox ]
Signed-off-by: NTony Lindgren <tony@atomide.com>
Signed-off-by: NFelipe Balbi <me@felipebalbi.com>
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      3cb22d65
    • P
      USB: otg: add otg_put_transceiver() · 68144e0c
      由 Philipp Zabel 提交于 
      As Russell King points out, calling put_device(otg_transceiver->dev)
directly in driver cleanup paths makes assumptions about otg_transceiver
internals.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      68144e0c
  17. 07 1月, 2009 4 次提交