Commit Graph

62913 Commits

Author SHA1 Message Date
Paul Walmsley a52e2ab66d ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1
The HSMMC1/HSMMC2 host controllers on OMAP34xx and
OMAP3503/3515/3525/3530 chips at ES levels prior to 3.0 can't do multiple
block reads[1].  Mark the hwmod data appropriately.

Reported by Dave Hylands <dhylands@gmail.com> and Steve Sakoman
<sakoman@gmail.com>.  Thanks to Steve Sakoman for further help
testing this patch.

1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read
   Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
   Revision F (October 2010) (SPRZ278F), available from
   http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Cc: Steve Sakoman <sakoman@gmail.com>
2011-12-16 01:34:46 -07:00
Benoit Cousson af88fa9aa7 ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4
Following 2 hwmod structures are added
1. usb_host_hs
     The hwmod of usbhs with uhh, ehci and ohci base addresses
     functional clock and ehci, ohci irqs

2. usb_tll_hs
      hwmod of usbhs with the TLL base address and irq.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
[keshava_mgowda@ti.com: rebased to kernel version 3.0, added workarounds for
 hardware issues]
Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: fixed multi-line comments, fixed whitespace, fixed S-o-b
 notes, removed spurious TLL->L3 interface]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-12-16 01:34:46 -07:00
Keshava Munegowda de231388cb ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
Following 2 hwmod structures are added
    1. usb_host_hs
         The hwmod of usbhs with uhh, ehci and ohci base addresses
         functional clock and ehci, ohci irqs

    2. usb_tll_hs
          hwmod of usbhs with the TLL base address and irq.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
[paul@pwsan.com: fixed whitespace; removed nonexistent TLL->L3 interface;
 added master & slave for L4 CORE->TLL interface; skip registration on
 3430ES1; fixed multiline comment style; updated to apply on Tony's cleanup
 branch; rebased]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-12-16 01:34:45 -07:00
Kyle Manna 4bf90f6573 ARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3
Add hwmod support to enable access to UART4 of the AM35xx series of
chips.  The UART4 device referenced from the TRM will show up as ttyO3.

This was tested on an AM3505.

Signed-off-by: Kyle Manna <kyle.manna@fuel7.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-12-15 22:44:34 -07:00
Aaro Koskinen 91a36bdb3a ARM: OMAP: hwmod data: fix the panic on Nokia RM-680 during boot
Booting the Linux kernel on Nokia RM-680 board has been broken since
2.6.39 due to the following:

[    0.217193] omap_hwmod: timer12: enabling
[    0.221435] Unhandled fault: external abort on non-linefetch (0x1028) at 0xfa304010
[    0.229431] Internal error: : 1028 [#1] SMP
[    0.233825] Modules linked in:
[    0.237060] CPU: 0    Not tainted  (3.2.0-rc4-dirty #46)
[    0.242645] PC is at _update_sysc_cache+0x2c/0x7c
[    0.247589] LR is at _enable+0x1b0/0x2d8
[    0.251708] pc : [<c0026108>]    lr : [<c0026df4>]    psr: 40000013
[    0.251708] sp : ef831f40  ip : ef82f380  fp : c06ac0c0
[    0.263702] r10: 00000000  r9 : c05dfb2c  r8 : ef830000
[    0.269165] r7 : c0027494  r6 : 00000000  r5 : 00000000  r4 : c06608b0
[    0.276000] r3 : fa304000  r2 : 00000010  r1 : c0661e28  r0 : c06608b0
[    0.282806] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[    0.290405] Control: 10c5387d  Table: 80004019  DAC: 00000017
[    0.296417] Process swapper (pid: 1, stack limit = 0xef8302f8)
[    0.302520] Stack: (0xef831f40 to 0xef832000)
[    0.307098] 1f40: c06608b0 c0026df4 c06ad094 c0035120 00000001 c06608b0 00000000 c0027530
[    0.315612] 1f60: c0027604 ef830000 c05dfb2c c06608b0 c0642ac0 c0025bf0 c0621234 c062120c
[    0.324127] 1f80: c0621738 00000013 ef830000 c05dfb6c c0621234 c0008688 c062c880 c009eadc
[    0.332641] 1fa0: 0000005f 00000000 c0621738 35390013 00000000 00000000 00000000 0000019a
[    0.341156] 1fc0: c0681cf4 c0621234 c062120c c0621738 00000013 00000000 00000000 00000000
[    0.349670] 1fe0: 00000000 c05d5298 00000000 c05d5200 c0014fa8 c0014fa8 ffff0000 ffff0000
[    0.358184] [<c0026108>] (_update_sysc_cache+0x2c/0x7c) from [<c0026df4>] (_enable+0x1b0/0x2d8)
[    0.367248] [<c0026df4>] (_enable+0x1b0/0x2d8) from [<c0027530>] (_setup+0x9c/0x170)
[    0.375335] [<c0027530>] (_setup+0x9c/0x170) from [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58)
[    0.384307] [<c0025bf0>] (omap_hwmod_for_each+0x38/0x58) from [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0)
[    0.394409] [<c05dfb6c>] (omap_hwmod_setup_all+0x40/0xa0) from [<c0008688>] (do_one_initcall+0x34/0x180)
[    0.404296] [<c0008688>] (do_one_initcall+0x34/0x180) from [<c05d5298>] (kernel_init+0x98/0x144)
[    0.413452] [<c05d5298>] (kernel_init+0x98/0x144) from [<c0014fa8>] (kernel_thread_exit+0x0/0x8)
[    0.422576] Code: e3130c01 1590304c 0590304c 119320b2 (07932002)
[    0.429046] ---[ end trace 1b75b31a2719ed1c ]---
[    0.433959] Kernel panic - not syncing: Attempted to kill init!

Timer 12 is not necessarily available on non-GP devices (see e.g.
http://marc.info/?l=linux-omap&m=129433066521102&w=2), so it should be
registered only on GP OMAPs. With this change it's again possible to
boot RM-680 into the shell. Tested with 3.2-rc4.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
[paul@pwsan.com: changed subject line]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-12-15 22:38:37 -07:00
Felipe Contreras 7c17c7701c ARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3
Seems the commit 7e89098 was overly aggressive in adding iva and mailbox
hwmods so now they are registered twice.

------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:1959 omap_hwmod_register+0x104/0x12c()
omap_hwmod: iva: _register returned -22
Modules linked in:
[<c0012aa4>] (unwind_backtrace+0x0/0xec) from [<c002f970>] (warn_slowpath_common+0x4c/0x64)
[<c002f970>] (warn_slowpath_common+0x4c/0x64) from [<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c)
[<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c) from [<c02fdb4c>] (omap_hwmod_register+0x104/0x12c)
[<c02fdb4c>] (omap_hwmod_register+0x104/0x12c) from [<c02fbb44>] (omap3_init_early+0x1c/0x28)
[<c02fbb44>] (omap3_init_early+0x1c/0x28) from [<c02f9580>] (setup_arch+0x6b8/0x7a4)
[<c02f9580>] (setup_arch+0x6b8/0x7a4) from [<c02f754c>] (start_kernel+0x6c/0x264)
[<c02f754c>] (start_kernel+0x6c/0x264) from [<80008040>] (0x80008040)
---[ end trace 1b75b31a2719ed1c ]---
------------[ cut here ]------------
WARNING: at arch/arm/mach-omap2/omap_hwmod.c:1959 omap_hwmod_register+0x104/0x12c()
omap_hwmod: mailbox: _register returned -22
Modules linked in:
[<c0012aa4>] (unwind_backtrace+0x0/0xec) from [<c002f970>] (warn_slowpath_common+0x4c/0x64)
[<c002f970>] (warn_slowpath_common+0x4c/0x64) from [<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c)
[<c002fa08>] (warn_slowpath_fmt+0x2c/0x3c) from [<c02fdb4c>] (omap_hwmod_register+0x104/0x12c)
[<c02fdb4c>] (omap_hwmod_register+0x104/0x12c) from [<c02fbb44>] (omap3_init_early+0x1c/0x28)
[<c02fbb44>] (omap3_init_early+0x1c/0x28) from [<c02f9580>] (setup_arch+0x6b8/0x7a4)
[<c02f9580>] (setup_arch+0x6b8/0x7a4) from [<c02f754c>] (start_kernel+0x6c/0x264)
[<c02f754c>] (start_kernel+0x6c/0x264) from [<80008040>] (0x80008040)
---[ end trace 1b75b31a2719ed1d ]---

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-12-15 22:38:36 -07:00
Linus Torvalds a776878d6c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Calling __pa() with an ioremap()ed address is invalid
  x86, hpet: Immediately disable HPET timer 1 if rtc irq is masked
  x86/intel_mid: Kconfig select fix
  x86/intel_mid: Fix the Kconfig for MID selection
2011-12-09 14:45:12 -08:00
Linus Torvalds 53523d5263 Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: use new generic {enable,disable}_percpu_irq() routines
  drivers/net/ethernet/tile: use skb_frag_page() API
  asm-generic/unistd.h: support new process_vm_{readv,write} syscalls
  arch/tile: fix double-free bug in homecache_free_pages()
  arch/tile: add a few #includes and an EXPORT to catch up with kernel changes.
2011-12-09 08:08:57 -08:00
Linus Torvalds 592d44a5f8 Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
* 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  MAINTAINERS: Update amd-iommu F: patterns
  iommu/amd: Fix typo in kernel-parameters.txt
  iommu/msm: Fix compile error in mach-msm/devices-iommu.c
  Fix comparison using wrong pointer variable in dma debug code
2011-12-09 08:08:14 -08:00
Youquan Song b6999b1912 thp: add compound tail page _mapcount when mapped
With the 3.2-rc kernel, IOMMU 2M pages in KVM works.  But when I tried
to use IOMMU 1GB pages in KVM, I encountered an oops and the 1GB page
failed to be used.

The root cause is that 1GB page allocation calls gup_huge_pud() while 2M
page calls gup_huge_pmd.  If compound pages are used and the page is a
tail page, gup_huge_pmd() increases _mapcount to record tail page are
mapped while gup_huge_pud does not do that.

So when the mapped page is relesed, it will result in kernel oops
because the page is not marked mapped.

This patch add tail process for compound page in 1GB huge page which
keeps the same process as 2M page.

Reproduce like:
1. Add grub boot option: hugepagesz=1G hugepages=8
2. mount -t hugetlbfs -o pagesize=1G hugetlbfs /dev/hugepages
3. qemu-kvm -m 2048 -hda os-kvm.img -cpu kvm64 -smp 4 -mem-path /dev/hugepages
	-net none -device pci-assign,host=07:00.1

  kernel BUG at mm/swap.c:114!
  invalid opcode: 0000 [#1] SMP
  Call Trace:
    put_page+0x15/0x37
    kvm_release_pfn_clean+0x31/0x36
    kvm_iommu_put_pages+0x94/0xb1
    kvm_iommu_unmap_memslots+0x80/0xb6
    kvm_assign_device+0xba/0x117
    kvm_vm_ioctl_assigned_device+0x301/0xa47
    kvm_vm_ioctl+0x36c/0x3a2
    do_vfs_ioctl+0x49e/0x4e4
    sys_ioctl+0x5a/0x7c
    system_call_fastpath+0x16/0x1b
  RIP  put_compound_page+0xd4/0x168

Signed-off-by: Youquan Song <youquan.song@intel.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-09 07:50:28 -08:00
Matt Fleming e8c7106280 x86, efi: Calling __pa() with an ioremap()ed address is invalid
If we encounter an efi_memory_desc_t without EFI_MEMORY_WB set
in ->attribute we currently call set_memory_uc(), which in turn
calls __pa() on a potentially ioremap'd address.

On CONFIG_X86_32 this is invalid, resulting in the following
oops on some machines:

  BUG: unable to handle kernel paging request at f7f22280
  IP: [<c10257b9>] reserve_ram_pages_type+0x89/0x210
  [...]

  Call Trace:
   [<c104f8ca>] ? page_is_ram+0x1a/0x40
   [<c1025aff>] reserve_memtype+0xdf/0x2f0
   [<c1024dc9>] set_memory_uc+0x49/0xa0
   [<c19334d0>] efi_enter_virtual_mode+0x1c2/0x3aa
   [<c19216d4>] start_kernel+0x291/0x2f2
   [<c19211c7>] ? loglevel+0x1b/0x1b
   [<c19210bf>] i386_start_kernel+0xbf/0xc8

A better approach to this problem is to map the memory region
with the correct attributes from the start, instead of modifying
it after the fact. The uncached case can be handled by
ioremap_nocache() and the cached by ioremap_cache().

Despite first impressions, it's not possible to use
ioremap_cache() to map all cached memory regions on
CONFIG_X86_64 because EFI_RUNTIME_SERVICES_DATA regions really
don't like being mapped into the vmalloc space, as detailed in
the following bug report,

	https://bugzilla.redhat.com/show_bug.cgi?id=748516

Therefore, we need to ensure that any EFI_RUNTIME_SERVICES_DATA
regions are covered by the direct kernel mapping table on
CONFIG_X86_64. To accomplish this we now map E820_RESERVED_EFI
regions via the direct kernel mapping with the initial call to
init_memory_mapping() in setup_arch(), whereas previously these
regions wouldn't be mapped if they were after the last E820_RAM
region until efi_ioremap() was called. Doing it this way allows
us to delete efi_ioremap() completely.

Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Huang Ying <huang.ying.caritas@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1321621751-3650-1-git-send-email-matt@console-pimps.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-09 08:32:26 +01:00
Linus Torvalds 8bd1c8815f Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
  ARM: sa1100: fix build error
  ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram
  ARM: davinci: dm365 evm: align nand partition table to u-boot
  ARM: davinci: da850 evm: change audio edma event queue to EVENTQ_0
  ARM: davinci: dm646x evm: wrong register used in setup_vpif_input_channel_mode
  ARM: davinci: dm646x does not have a DSP domain
  ARM: davinci: psc: fix incorrect offsets
  ARM: davinci: psc: fix incorrect mask
  ARM: mx28: LRADC macro rename
  arm: mx23: recognise stmp378x as mx23
  ARM: mxs: fix machines' initializers order
  ARM: mxs/tx28: add __initconst for fec pdata
  ARM: S3C64XX: Staticise s3c6400_sysclass
  ARM: S3C64XX: Add linux/export.h to dev-spi.c
  ARM: S3C64XX: Remove extern from definition of framebuffer setup call
  MAINTAINERS: Extend Samsung patterns to cover SPI and ASoC drivers
  MAINTAINERS: Add linux-samsung-soc mailing list for Samsung
  MAINTAINERS: Consolidate Samsung MAINTAINERS
  ARM: CSR: PM: fix build error due to undeclared 'THIS_MODULE'
  ARM: CSR: fix build error due to new mdesc->dma_zone_size
  ...
2011-12-08 13:18:38 -08:00
Mark Langsdorf 2ded6e6a94 x86, hpet: Immediately disable HPET timer 1 if rtc irq is masked
When HPET is operating in RTC mode, the TN_ENABLE bit on timer1
controls whether the HPET or the RTC delivers interrupts to irq8. When
the system goes into suspend, the RTC driver sends a signal to the
HPET driver so that the HPET releases control of irq8, allowing the
RTC to wake the system from suspend. The switchover is accomplished by
a write to the HPET configuration registers which currently only
occurs while servicing the HPET interrupt.

On some systems, I have seen the system suspend before an HPET
interrupt occurs, preventing the write to the HPET configuration
register and leaving the HPET in control of the irq8. As the HPET is
not active during suspend, it does not generate a wake signal and RTC
alarms do not work.

This patch forces the HPET driver to immediately transfer control of
the irq8 channel to the RTC instead of waiting until the next
interrupt event.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Link: http://lkml.kernel.org/r/20111118153306.GB16319@alberich.amd.com
Tested-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
2011-12-08 21:47:22 +01:00
Arnd Bergmann 073c460311 Merge branch 'fixes' of git://github.com/hzhuang1/linux into fixes 2011-12-08 15:52:23 +00:00
Jett.Zhou c564a0cb9d ARM: sa1100: fix build error
arm-eabi-4.4.3-ld:--defsym zreladdr=: syntax error
make[2]: *** [arch/arm/boot/compressed/vmlinux] Error 1
make[1]: *** [arch/arm/boot/compressed/vmlinux] Error 2
make: *** [uImage] Error 2

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
2011-12-08 14:55:57 +08:00
Olof Johansson b981f980b0 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes 2011-12-07 20:36:27 -08:00
Linus Torvalds 22c6b32d8d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up process_vm_{read,write}v
2011-12-07 16:12:14 -08:00
Arnd Bergmann e3a36c415a Merge branch 'samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2011-12-07 10:27:55 +00:00
Geert Uytterhoeven 5bf1e97dc3 m68k: Wire up process_vm_{read,write}v
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
2011-12-06 20:37:58 +01:00
Arnd Bergmann 24e71ef6d9 Merge branch 'fixes' of git://gitorious.org/linux-davinci/linux-davinci into fixes 2011-12-06 14:20:13 +00:00
Arnd Bergmann af72617279 Merge branch 'mxs/fixes' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes 2011-12-06 14:18:36 +00:00
Arnd Bergmann 58a394b3fa Merge branch 'fixes' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into fixes 2011-12-06 14:17:22 +00:00
Arnd Bergmann fec607aab5 Merge branch 'imx/fix-irqdomain' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes 2011-12-06 14:15:02 +00:00
Arnd Bergmann e6b6edf267 Merge branch 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes 2011-12-06 14:14:06 +00:00
Alan Cox 4e2b1c4f56 x86/intel_mid: Kconfig select fix
If we select a symbol it should have a type declared first
otherwise in some situations the config tools get upset. They
are currently perhaps a bit too resilient which is why this
wasn't noticed initially.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/20111206132811.4041.32549.stgit@bob.linux.org.uk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-06 14:40:50 +01:00
Alan Cox dd13752537 x86/intel_mid: Fix the Kconfig for MID selection
We currently fail to build on CONFIG_X86_INTEL_MID=y and
CONFIG_X86_MRST unset.

We could build all the bits to make generic MID work if you
picked MID platform alone but that's really silly. Instead use
select and two variables.

This looks a bit daft right now but once we add a Medfield
selection it'll start to look a good deal more sensible.

Reported-by: Ingo Molnar <mingo@elte.hu>
Reported-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Link: http://lkml.kernel.org/r/20111205231433.28811.51297.stgit@bob.linux.org.uk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-06 11:28:36 +01:00
Joerg Roedel 96f176a310 iommu/msm: Fix compile error in mach-msm/devices-iommu.c
Fix compile error due to missing <linux/module.h> include.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-06 11:17:34 +01:00
Linus Torvalds 45e713efe2 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  intr_remapping: Fix section mismatch in ir_dev_scope_init()
  intel-iommu: Fix section mismatch in dmar_parse_rmrr_atsr_dev()
  x86, amd: Fix up numa_node information for AMD CPU family 15h model 0-0fh northbridge functions
  x86, AMD: Correct align_va_addr documentation
  x86/rtc, mrst: Don't register a platform RTC device for for Intel MID platforms
  x86/mrst: Battery fixes
  x86/paravirt: PTE updates in k(un)map_atomic need to be synchronous, regardless of lazy_mmu mode
  x86: Fix "Acer Aspire 1" reboot hang
  x86/mtrr: Resolve inconsistency with Intel processor manual
  x86: Document rdmsr_safe restrictions
  x86, microcode: Fix the failure path of microcode update driver init code
  Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup
  x86/mpparse: Account for bus types other than ISA and PCI
  x86, mrst: Change the pmic_gpio device type to IPC
  mrst: Added some platform data for the SFI translations
  x86,mrst: Power control commands update
  x86/reboot: Blacklist Dell OptiPlex 990 known to require PCI reboot
  x86, UV: Fix UV2 hub part number
  x86: Add user_mode_vm check in stack_overflow_check
2011-12-05 16:54:15 -08:00
Linus Torvalds 232ea34455 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix loss of notification with multi-event
  perf, x86: Force IBS LVT offset assignment for family 10h
  perf, x86: Disable PEBS on SandyBridge chips
  trace_events_filter: Use rcu_assign_pointer() when setting ftrace_event_call->filter
  perf session: Fix crash with invalid CPU list
  perf python: Fix undefined symbol problem
  perf/x86: Enable raw event access to Intel offcore events
  perf: Don't use -ENOSPC for out of PMU resources
  perf: Do not set task_ctx pointer in cpuctx if there are no events in the context
  perf/x86: Fix PEBS instruction unwind
  oprofile, x86: Fix crash when unloading module (nmi timer mode)
  oprofile: Fix crash when unloading module (hr timer mode)
2011-12-05 16:54:00 -08:00
Linus Torvalds 7125faceab Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched, x86: Avoid unnecessary overflow in sched_clock
  sched: Fix buglet in return_cfs_rq_runtime()
  sched: Avoid SMT siblings in select_idle_sibling() if possible
  sched: Set the command name of the idle tasks in SMP kernels
  sched, rt: Provide means of disabling cross-cpu bandwidth sharing
  sched: Document wait_for_completion_*() return values
  sched_fair: Fix a typo in the comment describing update_sd_lb_stats
  sched: Add a comment to effective_load() since it's a pain
2011-12-05 16:50:24 -08:00
Linus Torvalds 35337c8341 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] ap: Setup timer for sending messages after reset.
  [S390] cio: fix chsc_chp_vary
  [S390] cio: provide fake irb for transport mode IO
  [S390] cio: disallow driver io for known to be broken paths
  [S390] hibernate: directly trigger subchannel evaluation
  [S390] remove reset of system call restart on psw changes
  [S390] add missing .set function for NT_S390_LAST_BREAK regset
  [S390] fix page change underindication in pgste_update_all
  [S390] ptrace inferior call interactions with TIF_SYSCALL
  [S390] kdump: Replace is_kdump_kernel() with OLDMEM_BASE check
2011-12-05 15:35:16 -08:00
Janusz Krzysztofik 6560ee07dc ARM: OMAP1: recalculate loops per jiffy after dpll1 reprogram
Otherwise timing is inaccurate, resulting in devices which depend on it,
like omap-keypad, broken.

Tested on Amstrad Delta.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: removed comment referencing a development branch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-12-05 09:28:32 -08:00
Andreas Herrmann f62ef5f3e9 x86, amd: Fix up numa_node information for AMD CPU family 15h model 0-0fh northbridge functions
I've received complaints that the numa_node attribute for family
15h model 00-0fh (e.g. Interlagos) northbridge functions shows
-1 instead of the proper node ID.

Correct this with attached quirks (similar to quirks for other
AMD CPU families used in multi-socket systems).

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Frank Arnold <frank.arnold@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/20111202072143.GA31916@alberich.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 18:13:11 +01:00
Mathias Nyman 35d4769962 x86/rtc, mrst: Don't register a platform RTC device for for Intel MID platforms
Intel MID x86 platforms have a memory mapped virtual RTC
instead.  No MID platform have the default ports (and
accessing them may do weird stuff).

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: feng.tang@intel.com
Cc: Feng Tang <feng.tang@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 17:09:21 +01:00
Konrad Rzeszutek Wilk 2cd1c8d4dc x86/paravirt: PTE updates in k(un)map_atomic need to be synchronous, regardless of lazy_mmu mode
Fix an outstanding issue that has been reported since 2.6.37.
Under a heavy loaded machine processing "fork()" calls could
crash with:

BUG: unable to handle kernel paging request at f573fc8c
IP: [<c01abc54>] swap_count_continued+0x104/0x180
*pdpt = 000000002a3b9027 *pde = 0000000001bed067 *pte = 0000000000000000 Oops: 0000 [#1] SMP
Modules linked in:
Pid: 1638, comm: apache2 Not tainted 3.0.4-linode37 #1
EIP: 0061:[<c01abc54>] EFLAGS: 00210246 CPU: 3
EIP is at swap_count_continued+0x104/0x180
.. snip..
Call Trace:
 [<c01ac222>] ? __swap_duplicate+0xc2/0x160
 [<c01040f7>] ? pte_mfn_to_pfn+0x87/0xe0
 [<c01ac2e4>] ? swap_duplicate+0x14/0x40
 [<c01a0a6b>] ? copy_pte_range+0x45b/0x500
 [<c01a0ca5>] ? copy_page_range+0x195/0x200
 [<c01328c6>] ? dup_mmap+0x1c6/0x2c0
 [<c0132cf8>] ? dup_mm+0xa8/0x130
 [<c013376a>] ? copy_process+0x98a/0xb30
 [<c013395f>] ? do_fork+0x4f/0x280
 [<c01573b3>] ? getnstimeofday+0x43/0x100
 [<c010f770>] ? sys_clone+0x30/0x40
 [<c06c048d>] ? ptregs_clone+0x15/0x48
 [<c06bfb71>] ? syscall_call+0x7/0xb

The problem is that in copy_page_range() we turn lazy mode on,
and then in swap_entry_free() we call swap_count_continued()
which ends up in:

         map = kmap_atomic(page, KM_USER0) + offset;

and then later we touch *map.

Since we are running in batched mode (lazy) we don't actually
set up the PTE mappings and the kmap_atomic is not done
synchronously and ends up trying to dereference a page that has
not been set.

Looking at kmap_atomic_prot_pfn(), it uses
'arch_flush_lazy_mmu_mode' and doing the same in
kmap_atomic_prot() and __kunmap_atomic() makes the problem go
away.

Interestingly, commit b8bcfe997e ("x86/paravirt: remove lazy
mode in interrupts") removed part of this to fix an interrupt
issue - but it went to far and did not consider this scenario.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 17:06:34 +01:00
Ingo Molnar f1b23714cb Merge branch 'ucode' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/urgent 2011-12-05 16:38:51 +01:00
Peter Chubb 1ef0389096 x86: Fix "Acer Aspire 1" reboot hang
Looks like on some Acer Aspire 1s with older bioses, reboot via bios
fails.  It works on my machine, (with BIOS version 0.3310) but
not on some others (BIOS version 0.3309).

There's a log of problems at:

  https://bbs.archlinux.org/viewtopic.php?id=124136

This patch adds a different callback to the reboot quirk table,
to allow rebooting via keybaord controller.

Reported-by: Uroš Vampl <mobile.leecher@gmail.com>
Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@kernel.org
Link: http://lkml.kernel.org/r/1323093233-9481-1-git-send-email-anarsoul@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 15:06:17 +01:00
Ajaykumar Hotchandani 8dbf4a3003 x86/mtrr: Resolve inconsistency with Intel processor manual
Following is from Notes of section 11.5.3 of Intel processor
manual available at:

  http://www.intel.com/Assets/PDF/manual/325384.pdf

For the Pentium 4 and Intel Xeon processors, after the sequence of
steps given above has been executed, the cache lines containing the
code between the end of the WBINVD instruction and before the
MTRRS have actually been disabled may be retained in the cache
hierarchy. Here, to remove code from the cache completely, a
second WBINVD instruction must be executed after the MTRRs have
been disabled.

This patch provides resolution for that.

Ideally, I will like to make changes only for Pentium 4 and Xeon
processors. But, I am not finding easier way to do it.
And, extra wbinvd() instruction does not hurt much for other
processors.

Signed-off-by: Ajaykumar Hotchandani <ajaykumar.hotchandani@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Link: http://lkml.kernel.org/r/4EBD1CC5.3030008@oracle.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 15:06:15 +01:00
Borislav Petkov ce37defc0f x86: Document rdmsr_safe restrictions
Recently, I got bitten by using rdmsr_safe too early in the boot
process. Document its shortcomings for future reference.

Link: http://lkml.kernel.org/r/4ED5B70F.606@lwfinger.net
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-12-05 14:28:37 +01:00
Srivatsa S. Bhat bd39906397 x86, microcode: Fix the failure path of microcode update driver init code
The microcode update driver's initialization code does not handle
failures correctly. This patch fixes this issue.

Signed-off-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20111107123530.12164.31227.stgit@srivatsabhat.in.ibm.com
Link: http://lkml.kernel.org/r/4ED8E2270200007800065120@nat28.tlf.novell.com
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2011-12-05 14:21:01 +01:00
Prarit Bhargava 644ddf588f Add TAINT_FIRMWARE_WORKAROUND on MTRR fixup
TAINT_FIRMWARE_WORKAROUND should be set when an MTRR fixup
is done.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/1318958650-12447-1-git-send-email-prarit@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 13:48:50 +01:00
Bjorn Helgaas 9e6866686b x86/mpparse: Account for bus types other than ISA and PCI
In commit f8924e770e ("x86: unify mp_bus_info"), the 32-bit
and 64-bit versions of MP_bus_info were rearranged to match each
other better.  Unfortunately it introduced a regression: prior
to that change we used to always set the mp_bus_not_pci bit,
then clear it if we found a PCI bus.  After it, we set
mp_bus_not_pci for ISA buses, clear it for PCI buses, and leave
it alone otherwise.

In the cases of ISA and PCI, there's not much difference.  But
ISA is not the only non-PCI bus, so it's better to always set
mp_bus_not_pci and clear it only for PCI.

Without this change, Dan's Dell PowerEdge 4200 panics on boot
with a log indicating interrupt routing trouble unless the
"noapic" option is supplied.  With this change, the machine
boots reliably without "noapic".

Fixes http://bugs.debian.org/586494

Reported-bisected-and-tested-by: Dan McGrath <troubledaemon@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org	# 2.6.26+
Cc: Dan McGrath <troubledaemon@gmail.com>
Cc: Alexey Starikovskiy <aystarik@gmail.com>
[jrnieder@gmail.com: clarified commit message]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Link: http://lkml.kernel.org/r/20111122215000.GA9151@elie.hsd1.il.comcast.net
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 13:46:27 +01:00
Feng Tang efa2212685 x86, mrst: Change the pmic_gpio device type to IPC
In latest firmware's SFI tables, pmic_gpio has been set to
IPC type of device, so we need handle it too.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 12:42:15 +01:00
Jekyll Lai 28744b3e9c mrst: Added some platform data for the SFI translations
Add SFI glue for the following devices:

tca6416: a gpio expander compatible with max7315
mpu3050: gyro sensor

Both of these actual drivers are already upstream

Signed-off-by: Jekyll Lai <jekyll_lai@wistron.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 12:42:13 +01:00
Jacob Pan 48bc556210 x86,mrst: Power control commands update
On the Intel MID devices SCU commands are issued to manage power
off and the like. We need to issue different ones for
non-Lincroft based devices.

Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 12:42:11 +01:00
Rafael J. Wysocki 6be30bb7d7 x86/reboot: Blacklist Dell OptiPlex 990 known to require PCI reboot
Dell OptiPlex 990 is known to require PCI reboot, so add it to
the reboot blacklist in pci_reboot_dmi_table[].

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Link: http://lkml.kernel.org/r/201111160019.51303.rjw@sisk.pl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-05 12:20:43 +01:00
Shankarmurthy,Akshay 45fc4cce93 ARM: davinci: dm365 evm: align nand partition table to u-boot
Current partition information maintained in kernel does not match with
u-boot, this leads to corruption of u-boot env when we update uImage
from kernel. Patch fixes it to match with u-boot partition information.

Signed-off-by: Shankarmurthy,Akshay <akshay.s@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-12-05 16:47:19 +05:30
Manjunathappa, Prakash f1b21c5256 ARM: davinci: da850 evm: change audio edma event queue to EVENTQ_0
On OMAP-L138 platform, EDMA event queue 0 should be used for audio
transfers so that they are not starved by video data moving on event queue 1.

Commit 48519f0ae0 (ASoC: davinci: let platform
data define edma queue numbers) had a side-effect of changing this behavior
by making the driver actually honor the platform data passed.

Fix this now by passing event queue 0 as the queue to be used for audio
transfers.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: <stable@vger.kernel.org> # v2.6.36.x and above
2011-12-05 16:47:18 +05:30
Hans Verkuil 83713fc937 ARM: davinci: dm646x evm: wrong register used in setup_vpif_input_channel_mode
The function setup_vpif_input_channel_mode() used the VSCLKDIS register
instead of VIDCLKCTL. This meant that when in HD mode videoport channel 0
used a different clock from channel 1.

Clearly a copy-and-paste error.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Manjunath Hadli <manjunath.hadli@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: stable@kernel.org
2011-12-05 16:47:17 +05:30
Sekhar Nori 9ab409e402 ARM: davinci: dm646x does not have a DSP domain
Fix the incorrect classification of DSP clock into a
seperate DSP domain on DM646x.

Per the reference guide (http://www.ti.com/lit/ug/spruep9e/spruep9e.pdf)
there is only one "AlwaysON" power domain on DM6467.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-12-05 16:47:16 +05:30