Commit Graph

67792 Commits

Author SHA1 Message Date
John Crispin 287e3f3f4e MIPS: lantiq: implement support for clkdev api
This patch unifies all clock generation and gating code into one file.
All drivers will now be able to request their clocks via their device.
This patch also adds support for the clockout feature, which allows
clock generation on external pins.

Support for COMMON_CLK will be provided in the next series.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3804/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:51 +01:00
John Crispin bd51db7f3b MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq()
As part of the conversion to OF we also implement pinctrl drivers. Previously
we used ltq_gpio_request() to set pinmuxing. This is now obselete and we can
hence drop the function.

Additionally we remove gpio_to_irq() from the gpio driver and move it to a
header file.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3801/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:50 +01:00
John Crispin 3645da0276 OF: MIPS: lantiq: implement irq_domain support
Add support for irq_domain on lantiq socs. The conversion is straight forward
as the ICU found inside the socs allows the usage of irq_domain_add_linear.

Harware IRQ 0->7 are the generic MIPS IRQs. 8->199 are the Lantiq IRQ Modules.
Our irq_chip callbacks need to substract 8 (MIPS_CPU_IRQ_CASCADE) from d->hwirq
to find out the correct offset into the Interrupt Modules register range.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3802/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:50 +01:00
John Crispin a0392222d9 OF: MIPS: lantiq: implement OF support
Activate USE_OF, add a sample DTS file and convert the core soc code to OF.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3803/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:49 +01:00
John Crispin cd93b4895e MIPS: lantiq: drop mips_machine support
Before we are able to add OF support, we really want to drop all the bloat
needed to register all the platform devices.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3800/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:49 +01:00
John Crispin 6697c69330 MIPS: lantiq: cleanup reset code
Add 2 new soc specifc handlers and remove superflous pr_notice calls.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3705/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:23 +02:00
John Crispin 215ed2009c MIPS: lantiq: add xway soc ids
Add the soc ids for additional xway socs. The patch also merges the amazon_se
code with the other socs.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3707/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:23 +02:00
Thomas Langer 730fa039f1 MIPS: lantiq: fix cmdline parsing
The code tested if the KSEG1 mapped address of argv was != 0. We need to use
CPHYSADDR instead to make the conditional actually work.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3722/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:22 +02:00
Thomas Langer 7705f6867b MIPS: lantiq: fix early printk
The code was using a 32bit write operations in the early_printk code. This
resulted in 3 zero bytes also being written to the serial port. This patch
changes the memory access to 8bit.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3721/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:22 +02:00
John Crispin a8d096ef78 MIPS: lantiq: add ipi handlers to make vsmp work
Add IPI handlers to the interrupt code. This patch makes MIPS_MT_SMP work
on lantiq socs. The code is based on the malta implementation.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3704/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:21 +02:00
John Crispin 59c1157984 MIPS: lantiq: enable oprofile support on lantiq targets
This patch sets the performance counters irq on Lantiq SoCs.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3720/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:21 +02:00
John Crispin 16f70b561d MIPS: lantiq: clear all irqs properly on boot
Due to missing brackets, the irq modules were not properly reset on boot.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3719/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:21 +02:00
John Crispin 3489d72d15 MIPS: remove unused prototype kgdb_config
Trivial fix that removes an orphaned prototype.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3701/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:20 +02:00
John Crispin c9a3b7e4a3 MIPS: add clkdev.h
For clock device lookup tables to work on MIPS, we need to provide this
architecture specific header file.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3700/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:20 +02:00
John Crispin 40e91aec7d MIPS: parse chosen node on boot
Call early_init_devtree from inside __dt_setup_arch to allow parsing of the
chosen node.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3718/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:20 +02:00
Ralf Baechle 7d6168e576 MIPS: Add helper function to allow platforms to point at a DTB.
Add __dt_setup_arch() that can be called to load a builtin DT.
Additionally we add a macro to allow loading a specific symbol
from the __dtb_* section.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3715/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:19 +02:00
Ralf Baechle 0a4c531c21 MIPS: Provide pci_address_to_pio.
Without I/O ports won't work.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3697/
2012-05-15 17:49:19 +02:00
John Crispin a48cf37ac8 MIPS: pci: parse memory ranges from devicetree
Implement pci_load_of_ranges on MIPS. Due to lack of test hardware only 32bit
bus width is supported. This function is based on pci_process_bridge_OF_ranges
from powerpc.

Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3729/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:19 +02:00
Felix Fietkau 3572a2c37f MIPS: make oprofile use cp0_perfcount_irq if it is set
Make the oprofile code use the performance counters irq.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3723/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-15 17:49:19 +02:00
Linus Torvalds 5889fc3217 ARM: SoC fixes for 3.4-rc
I was hoping to be done with fixes for 3.4 but we got two branches from
 subarch maintainers the last couple of days. So here is one last(?) pull
 request for arm-soc containing 7 patches:
 
 - 5 of them are for shmobile dealing with SMP setup and compile failures
 - The remaining two are for regressions on the Samsung platforms
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIbBAABAgAGBQJPrufxAAoJEIwa5zzehBx3m2EP+PPYlaO43Oiafz08W9/hTyGY
 yKBjC5LyD3MxcQ/7nA3N0YUpOL4wpB+8J3/bZhsos0V9KoQkDYcT3QliQy1yLDaq
 0FfwA+5V8r98pIPK4aforeE4ZqfkLmDD1psxLovE7YChpDZsDnNiIxBejH1hcF89
 aklXiz1egDDekYNZhPC1n/+IRc0s49cfGaL94/BbNxNw4/H02NmslLN8K51D8nXU
 6g6wCOoL/vcFvE5vW4bxfmz5DfA/Li8sz8ayzomrUIy43JqEuclcFl3XYsq4OKRV
 va5XSdutvFojgWexZd4MJo21Vlb+dMk5RuEeLDbf93saNZfzoccSNilkDKwEC0aL
 vdZ7sIuYHs5yMNJo4LQmYTl9cAIlEKu4fmDYuZXgnsb3YVLxn7wxxQiDNN0HTH9o
 4CcGu/Io1jLDWL2u9AIAizb4YC2Red3xjGmK8cpjY9QMo9GyCbVvrkKyrhNWLtMU
 5U1ZpfgoZck02unWLkl7YrV9l0BbQ5WIJQ3ScNHQsMxpzWz8X2BuyNr7lwWghc94
 JPnKJo1cpN/HHKu5pzidp+/1KrBjZqeIFfbre6AVr+BqweIaLdXriv8CtCx5/WxE
 /bXVbMQYH+A4SB6diiyQkgktfpIJt4WVexYEkudMLUh2F0/LkAnBh4WDWOabBIl/
 X4E5jrTtDwPYRtWu2Oo=
 =Q2un
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM: SoC fixes from Olof Johansson:
 "I was hoping to be done with fixes for 3.4 but we got two branches
  from subarch maintainers the last couple of days.  So here is one
  last(?) pull request for arm-soc containing 7 patches:

   - Five of them are for shmobile dealing with SMP setup and compile
     failures
   - The remaining two are for regressions on the Samsung platforms"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1
  ARM: EXYNOS: use s5p-timer for UniversalC210 board
  ARM / mach-shmobile: Invalidate caches when booting secondary cores
  ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
  ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix
  ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper
  ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12 17:27:41 -07:00
Olof Johansson 85d5c4a362 Merge branch 'v3.4-samsung-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
* 'v3.4-samsung-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1
  ARM: EXYNOS: use s5p-timer for UniversalC210 board
2012-05-12 15:41:22 -07:00
Kukjin Kim 28b874a8ba ARM: EXYNOS: fix ctrlbit for exynos5_clk_pdma1
It should be (1 << 2) for ctrlbit of exynos5_clk_pdma1.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-13 08:31:53 +09:00
Marek Szyprowski fd717cd7c9 ARM: EXYNOS: use s5p-timer for UniversalC210 board
Commit 069d4e743 ("ARM: EXYNOS4: Remove clock event timers using
ARM private timers") removed support for local timers and forced
to use MCT as event source. However MCT is not operating properly
on early revision of EXYNOS4 SoCs. All UniversalC210 boards are
based on it, so that commit broke support for it. This patch
provides a workaround that enables UniversalC210 boards to boot
again. s5p-timer is used as an event source, it works only for
non-SMP builds.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-05-13 08:31:52 +09:00
Olof Johansson d2919c651e Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas into fixes
By Guennadi Liakhovetski (2) and others via Rafael J. Wysocki:
"[...] urgent fixes for Renesas ARM-based platforms.  Four of these
commits are fixes of regressions new in 3.4-rc and the last one is
necessary for SMP to work on those systems in general."

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/renesas:
  ARM / mach-shmobile: Invalidate caches when booting secondary cores
  ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
  ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix
  ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper
  ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
2012-05-12 15:40:56 -07:00
Magnus Damm e994d5eb7c ARM / mach-shmobile: Invalidate caches when booting secondary cores
Make sure L1 caches are invalidated when booting secondary
cores. Needed to boot all mach-shmobile SMP systems that
are using Cortex-A9 including sh73a0, r8a7779 and EMEV2.

Thanks to imx and tegra guys for actual code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12 22:13:52 +02:00
Kuninori Morimoto d6720003c3 ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
Fix SMP TWD boot regression on sh73a0 based platforms caused by:

4200b16 ARM: shmobile: convert to twd_local_timer_register() interface

After the merge of the above commit it has been impossible to boot
sh73a0 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The
kernel crashes at smp_init_cpus() timing which is before the console
has been initialized, so to the user this looks like a kernel lock up
without any particular error message.

This patch fixes the regression on sh73a0 by moving the TWD
registration code from smp_init_cpus() to sys_timer->init() time.

This patch removed shmobile_twd_init() which is no longer needed

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12 22:13:45 +02:00
Magnus Damm b759bd114e ARM / mach-shmobile: r8a7779 SMP TWD boot regression fix
Fix SMP TWD boot regression on r8a7779 based platforms caused by:

4200b16 ARM: shmobile: convert to twd_local_timer_register() interface

After the merge of the above commit it has been impossible to boot
r8a7779 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The
kernel crashes at smp_init_cpus() timing which is before the console
has been initialized, so to the user this looks like a kernel lock up
without any particular error message.

This patch fixes the regression on r8a7779 by moving the TWD
registration code from smp_init_cpus() to sys_timer->init() time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12 22:13:38 +02:00
Guennadi Liakhovetski 173e2fec4d ARM: mach-shmobile: convert ag5evm to use the generic MMC GPIO hotplug helper
This also fixes the following modular mmc build failure:

arch/arm/mach-shmobile/built-in.o: In function `mackerel_sdhi0_gpio_cd':
pfc-sh7372.c:(.text+0x1138): undefined reference to `mmc_detect_change'

on this platform by eliminating the use of an inline function, which
calls into the mmc core.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Reviewed-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12 22:13:01 +02:00
Guennadi Liakhovetski 2b3e38c4fb ARM: mach-shmobile: convert mackerel to use the generic MMC GPIO hotplug helper
This also fixes the following modular mmc build failure:

arch/arm/mach-shmobile/built-in.o: In function `ag5evm_sdhi0_gpio_cd':
pfc-sh73a0.c:(.text+0x7c0): undefined reference to `mmc_detect_change'

on this platform by eliminating the use of an inline function, which
calls into the mmc core.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-12 22:12:36 +02:00
Benjamin Herrenschmidt 7c0482e3d0 powerpc/irq: Fix another case of lazy IRQ state getting out of sync
So we have another case of paca->irq_happened getting out of
sync with the HW irq state. This can happen when a perfmon
interrupt occurs while soft disabled, as it will return to a
soft disabled but hard enabled context while leaving a stale
PACA_IRQ_HARD_DIS flag set.

This patch fixes it, and also adds a test for the condition
of those flags being out of sync in arch_local_irq_restore()
when CONFIG_TRACE_IRQFLAGS is enabled.

This helps catching those gremlins faster (and so far I
can't seem see any anymore, so that's good news).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-12 09:40:41 +10:00
Linus Torvalds 4e25651b70 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull a m68knommu fix from Greg Ungerer:
 "It contains a single fix for including the ColdFire QSPI interface
  setup code when enabled as a module.  This was broken in the
  consolidation of the ColdFire SoC device tables in the 3.4 merge
  window."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: enable qspi support when SPI_COLDFIRE_QSPI = m
2012-05-11 09:28:35 -07:00
Linus Torvalds d60b9c16d7 Merge branch 'parisc' (PA-RISC compile fixes)
Merge PA-RISC compile fixes from Rolf Eike Beer:
 "Since commit d66acc39c7 ("bitops: Optimise get_order()") getorder.h
  includes log2.h which leads to an include loop on PA-RISC, bringing a
  bunch of other breakage to light.  This patchset fixes the compilation
  of the current state of 3.4 on HPPA.

  Unchanged against the first version, just added an Ack by Grant."

* emailed from Rolf Eike Beer <eike-kernel@sf-tec.de>: (5 patches)
  parisc: move definition of PAGE0 to asm/page.h
  parisc: add missing include of asm/page.h to asm/pgtable.h
  parisc: drop include of asm/pdc.h from asm/hardware.h
  parisc: add missing forward declarations in asm/hardware.h
  parisc: add missing includes in asm/spinlock.h
2012-05-10 15:18:41 -07:00
Rolf Eike Beer 4a8a0788a3 parisc: move definition of PAGE0 to asm/page.h
This was defined in asm/pdc.h which needs to include asm/page.h for
__PAGE_OFFSET. This leads to an include loop so that page.h eventually will
include pdc.h again. While this is no problem because of header guards, it is
a problem because some symbols may be undefined. Such an error is this:

In file included from include/linux/bitops.h:35:0,
                 from include/asm-generic/getorder.h:7,
                 from arch/parisc/include/asm/page.h:162,
                 from arch/parisc/include/asm/pdc.h:346,
                 from arch/parisc/include/asm/processor.h:16,
                 from arch/parisc/include/asm/spinlock.h:6,
                 from arch/parisc/include/asm/atomic.h:20,
                 from include/linux/atomic.h:4,
                 from include/linux/sysfs.h:20,
                 from include/linux/kobject.h:21,
                 from include/linux/device.h:17,
                 from include/linux/eisa.h:5,
                 from arch/parisc/kernel/pci.c:11:
arch/parisc/include/asm/bitops.h: In function ‘set_bit’:
arch/parisc/include/asm/bitops.h:82:2: error: implicit declaration of function ‘_atomic_spin_lock_irqsave’ [-Werror=implicit-function-declaration]
arch/parisc/include/asm/bitops.h:84:2: error: implicit declaration of function ‘_atomic_spin_unlock_irqrestore’ [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
Rolf Eike Beer 9b05b1ec40 parisc: add missing include of asm/page.h to asm/pgtable.h
Fixes these errors:

In file included from arch/parisc/include/asm/io.h:5:0,
                 from include/linux/io.h:22,
                 from include/linux/pci.h:54,
                 from arch/parisc/kernel/setup.c:35:
arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
arch/parisc/include/asm/pgtable.h:92:6: warning: "PAGE_SHIFT" is not defined [-Wundef]
arch/parisc/include/asm/pgtable.h:92:6: warning: "BITS_PER_PTE_ENTRY" is not defined [-Wundef]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
Rolf Eike Beer 6eb608f554 parisc: drop include of asm/pdc.h from asm/hardware.h
It seems none of the symbols defined by pdc.h is needed, but it introduces an
include loop causing compile errors:

In file included from arch/parisc/include/asm/spinlock.h:4:0,
                 from arch/parisc/include/asm/atomic.h:20,
                 from include/linux/atomic.h:4,
                 from arch/parisc/include/asm/bitops.h:56,
                 from include/linux/bitops.h:35,
                 from include/asm-generic/getorder.h:7,
                 from arch/parisc/include/asm/page.h:162,
                 from arch/parisc/include/asm/pdc.h:346,
                 from arch/parisc/include/asm/hardware.h:5,
                 from arch/parisc/kernel/hardware.c:30:
arch/parisc/include/asm/processor.h:74:16: error: field ‘cpu_type’ has incomplete type
arch/parisc/include/asm/processor.h:77:20: error: field ‘model’ has incomplete type
arch/parisc/include/asm/processor.h: In function ‘parisc_requires_coherency’:
arch/parisc/include/asm/processor.h:349:36: error: ‘mako’ undeclared (first use in this function)
arch/parisc/include/asm/processor.h:349:36: note: each undeclared identifier is reported only once for each function it appears in
arch/parisc/include/asm/processor.h:350:30: error: ‘mako2’ undeclared (first use in this function)

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Acked-by: Grant Grundler <grantgrundler@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
Rolf Eike Beer 25fe853d2c parisc: add missing forward declarations in asm/hardware.h
Fixes this warnings:

In file included from arch/parisc/include/asm/processor.h:15:0,
                 from arch/parisc/include/asm/spinlock.h:4,
                 from arch/parisc/include/asm/atomic.h:20,
                 from include/linux/atomic.h:4,
                 from arch/parisc/include/asm/bitops.h:11,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
arch/parisc/include/asm/hardware.h:106:10: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default]
arch/parisc/include/asm/hardware.h:106:10: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
arch/parisc/include/asm/hardware.h:116:59: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default]
arch/parisc/include/asm/hardware.h:118:47: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default]
arch/parisc/include/asm/hardware.h:119:57: warning: ‘struct hardware_path’ declared inside parameter list [enabled by default]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
Rolf Eike Beer 1cab4201f0 parisc: add missing includes in asm/spinlock.h
This leads to this errors:

In file included from arch/parisc/include/asm/atomic.h:20:0,
                 from include/linux/atomic.h:4,
                 from arch/parisc/include/asm/bitops.h:56,
                 from include/linux/bitops.h:22,
                 from include/linux/kernel.h:19,
                 from include/linux/sched.h:55,
                 from arch/parisc/kernel/asm-offsets.c:31:
arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_is_locked’:
arch/parisc/include/asm/spinlock.h:9:2: error: implicit declaration of function ‘__ldcw_align’ [-Werror=implicit-function-declaration]
arch/parisc/include/asm/spinlock.h:9:29: warning: initialization makes pointer from integer without a cast [enabled by default]
arch/parisc/include/asm/spinlock.h: In function ‘arch_spin_lock_flags’:
arch/parisc/include/asm/spinlock.h:22:2: error: implicit declaration of function ‘mb’ [-Werror=implicit-function-declaration]
arch/parisc/include/asm/spinlock.h:23:4: warning: assignment makes pointer from integer without a cast [enabled by default]
arch/parisc/include/asm/spinlock.h:24:2: error: implicit declaration of function ‘__ldcw’ [-Werror=implicit-function-declaration]

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-10 15:12:08 -07:00
David S. Miller a5a737e090 sparc64: Do not clobber %g2 in xcall_fetch_glob_regs().
%g2 is meant to hold the CPUID number throughout this routine, since
at the very beginning, and at the very end, we use %g2 to calculate
indexes into per-cpu arrays.

However we erroneously clobber it in order to hold the %cwp register
value mid-stream.

Fix this code to use %g3 for the %cwp read and related calulcations
instead.

Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-10 11:00:46 -07:00
Linus Torvalds 7ee94d97aa ARM: SoC fixes for 3.4-rc
Things have slowed down a lot for us, but we have five more fixes for
 omap and kirkwood below. Three are for boards setup issues, two are
 SoC-level fixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJPqpiAAAoJEIwa5zzehBx36WcP/A3yfgwccYQPAGiazDWMoxj+
 bLdr49L4tgFf8dwRno+IeAKjhhBDYUJgNoz46Tnqfh1L7ImIvGUlPDtqfQGb5+HK
 HZ+mz46ZUoJPdvBS8CY7Xf5lP/5iiMI+wBeE33bu+EyKhgbD8wYmQDCsJJhjjRLW
 TqR/a74Mz/yX9sCL5pZ/ktKhxV/FvBMT3pqpU8Eb50hDtStTouf25EmyLv0iVmJx
 45pwG3+nx6R+/Lu2rwCroKUTl/cNR95L9+EGMzb99aZXSsGS5zmiAEQ2TNcp0lxb
 JMR3bB9zTDWmY1VZ83os2NI1GDOj1Zdvqns/iiBRKLUBvFN447tMdRvZMomvM3VQ
 whiKd5R0aFa42KROZq7V+t540FeLqgDvHY4zeOPDRGrh1Y9ElgCJnciX4Hxm779n
 KH9VlnHrUW3tNHqlLKXTJ1tuvNSbNUE2FtG/m+oJLyUyH4CJzNi1R1rofZEEHEH/
 8zeJzw6amwpSWyLEi1HjyhFOJ8WqOnY17LMWilQeeYbqHGwXGKTOmm9P8PKPk4cx
 dFlwCeJgd7VL+L5rn8LVOjvov7j1iakKZhtSjLMjF4k088MejDVOfTj21Qs5MiHI
 nl03BOvtmwEGXUbYHKromzeHMvoXXWuQyK13cWmgBXAiAGgX76mNU9GukwXU3rqm
 TGrRTsiuGzYQn9w3EVFL
 =GX6x
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM: SoC fixes from Olof Johansson:
 "Things have slowed down a lot for us, but we have five more fixes for
  omap and kirkwood below.  Three are for boards setup issues, two are
  SoC-level fixes."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP: igep0020: fix smsc911x dummy regulator id
  ARM: orion5x: Fix GPIO enable bits for MPP9
  ARM: kirkwood: add missing kexec.h include
  ARM: OMAP: Revert "ARM: OMAP: ctrl: Fix CONTROL_DSIPHY register fields"
  ARM: OMAP1: Amstrad Delta: Fix wrong IRQ base in FIQ handler
2012-05-09 11:27:00 -07:00
Linus Torvalds 63f4711aec Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Avi Kivity:
 "Two asynchronous page fault fixes (one guest, one host), a powerpc
  page refcount fix, and an ia64 build fix."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: ia64: fix build due to typo
  KVM: PPC: Book3S HV: Fix refcounting of hugepages
  KVM: Do not take reference to mm during async #PF
  KVM: ensure async PF event wakes up vcpu from halt
2012-05-09 11:14:13 -07:00
Linus Torvalds 6a5beacca8 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
 "Here are a couple of last minute fixes for 3.4 for regressions
  introduced by my rewrite of the lazy irq masking code."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/irq: Make alignment & program interrupt behave the same
  powerpc/irq: Fix bug with new lazy IRQ handling code
2012-05-09 11:07:29 -07:00
Olof Johansson e396dbd4ed Fix two board spefific regressions and one regression caused by bad documentation
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJPqowwAAoJEBvUPslcq6VzDPQP/1LBOfJb6OMdK+lfDA49tMtU
 q/Qzq5GvgKA7+Opb3n5TVpnXh1cT7tSrvDtYI/ol8KaCVkLLoxdIO1dJekPyX81H
 +W4JoUYOLDAKfJ7FP44K7MJu/TsXsQ22Hyv6hYKw9lfm9rzIQwp/ofD08g9HDubc
 j6BbrIH/mBEIheJPor1Iz1j+A50EImKpkixrfD9ttJfJkwu3FmzDp+KvLNhzDX7H
 VCCYatJIkJPXEqIwaVjOyAqSvU3ZHFLxkFVjzRwkLpd2bNA1KX/FjOzv4lrK4jf3
 A2eEce/YSPrNn8KhM+mB/UKLLJ3ifgUvDS6IsvVkxwsPUyGpEwFL1KBEiAlVfApq
 WWxC/WZcZgHlXs4WRH/FS5ERLuPhaom+YkSs8bZRqAGxtA8RO1E6yNG6fzlp84/B
 LFxKa7TXEMCmSoRye6rZ4gmndCQ+8q0OQv1M89aHvn/iv7arS8XtWLGzp01qAQzQ
 OX8CCRxiRxJd9g3nCLhGq77UTI89ZiP86562Df50Akc2SYPCrw2hPR1rYjzU1TCl
 2nVQsDhSJDcGTuIVClTUmbUMM34RJQxlxAgxBJkDPshNjXiV0qMzYe+U1t4HjArE
 IBfshxY0qL6x8y2cdoeDkSpSyhjbeHZqPHYJ/nGFCkTNCQF1+c6o3NqYmdtd+bsF
 bAF1qF3FGhjXubgzpOzM
 =k8QU
 -----END PGP SIGNATURE-----

Merge tag 'omap-fixes-for-v3.4-rc6-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fix two board spefific regressions and one regression caused by bad documentation

By Archit Taneja (1) and others
via Tony Lindgren
* tag 'omap-fixes-for-v3.4-rc6-take-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: igep0020: fix smsc911x dummy regulator id
  ARM: OMAP: Revert "ARM: OMAP: ctrl: Fix CONTROL_DSIPHY register fields"
  ARM: OMAP1: Amstrad Delta: Fix wrong IRQ base in FIQ handler
2012-05-09 09:03:34 -07:00
Enrico Butera 1a21932edc ARM: OMAP: igep0020: fix smsc911x dummy regulator id
id 0 is already used and causes errors at boot:

WARNING: at fs/sysfs/dir.c:508 sysfs_add_one+0x9c/0xac()
sysfs: cannot create duplicate filename '/devices/platform/reg-fixed-voltage.0'

Fix it by using the next available one (id=1).

This was caused by 5b3689f4 (ARM: OMAP2+: smsc911x: Add fixed
board regulators) that did not account for some regulators
already being used.

Signed-off-by: Enrico Butera <ebutera@users.berlios.de>
[tony@atomide.com: updated comments for regression causing commit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-05-09 08:12:05 -07:00
Avi Kivity 331b646d60 KVM: ia64: fix build due to typo
s/kcm/kvm/.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2012-05-09 13:53:28 +03:00
Benjamin Herrenschmidt a3512b2dd5 powerpc/irq: Make alignment & program interrupt behave the same
Alignment was the last user of the ENABLE_INTS macro, which we can
now remove. All non-syscall exceptions now disable interrupts on
entry, they get re-enabled conditionally from C code. Don't
unconditionally re-enable in program check either, check the
original context.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-09 09:42:33 +10:00
Benjamin Herrenschmidt 56dfa7fa19 powerpc/irq: Fix bug with new lazy IRQ handling code
We had a case where we could turn on hard interrupts while
leaving the PACA_IRQ_HARD_DIS bit set in the PACA. This can
in turn cause a BUG_ON() to hit in __check_irq_replay() due
to interrupt state getting out of sync.

The assembly code was also way too convoluted. Instead, we
now leave it to the C code to do the right thing which ends
up being smaller and more readable.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-09 09:42:21 +10:00
Ben Hutchings 48d99f47a8 ARM: orion5x: Fix GPIO enable bits for MPP9
Commit 554cdaefd1 ('ARM: orion5x: Refactor
mpp code to use common orion platform mpp.') seems to have accidentally
inverted the GPIO valid bits for MPP9 (only).  For the mv2120 platform
which uses MPP9 as a GPIO LED device, this results in the error:

[   12.711476] leds-gpio: probe of leds-gpio failed with error -22

Reported-by: Henry von Tresckow <hvontres@gmail.com>
References: http://bugs.debian.org/667446
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org [v3.0+]
Tested-by: Hans Henry von Tresckow <hvontres@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-05-08 18:57:21 +00:00
Ian Campbell a7ac56de83 ARM: kirkwood: add missing kexec.h include
Fixes the following build error when CONFIG_KEXEC is enabled:
  CC      arch/arm/mach-kirkwood/board-dt.o
arch/arm/mach-kirkwood/board-dt.c: In function 'kirkwood_dt_init':
arch/arm/mach-kirkwood/board-dt.c:52:2: error: 'kexec_reinit' undeclared (first use in this function)
arch/arm/mach-kirkwood/board-dt.c:52:2: note: each undeclared identifier is reported only once for each function it appears in

Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
[v4, rebase onto recent Linus for repost]
[v3, speak actual English in the commit message, thanks Sergei Shtylyov]
[v2, using linux/kexec.h not asm/kexec.h]
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2012-05-08 18:43:25 +00:00
Linus Torvalds 4ed6cedeef Innocuous fixes:
* fix to Kconfig to make it fit within 80 line characters,
  * two bootup fixes (AMD 8-core and with PCI BIOS),
  * cleanup code in a Xen PV fb driver,
  * and a crash fix when trying to see non-existent PTE's
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQEcBAABAgAGBQJPp/iaAAoJEFjIrFwIi8fJAFsH/1NVxvOAHyzyczU49U/1vi8T
 d67kIb8fFHni6HO7BiBkuM8DricGQnDhP7uC1n9waWf8jRiYsPTAbesyedTLbQos
 SLfzpsLWKilJOxWCf17cBnm6i9ScQn1ioJ6h3jFzHgNCXnvvAVYqfKHW0V6HTErH
 JL0eb4+asiZgXNSeac1gabQlai6LuBzMWaFgzRGY+hDnCQhkdQfDkD7X5zEhUUmH
 jUmtSxRx+5LkfelwRb2kHhI5j58ilOEa7YLZFQc3C+2+bUvgsG9vJDsQ3jwFaGDn
 cryfRY9WJXxgcXqk1ClOnk9U9PGzRc48gdLVLhYuLsIvUWN7RzgRlBMsH33Gq9M=
 =kjvX
 -----END PGP SIGNATURE-----

Merge tag 'stable/for-linus-3.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull xen fixes from Konrad Rzeszutek Wilk:
 - fix to Kconfig to make it fit within 80 line characters,
 - two bootup fixes (AMD 8-core and with PCI BIOS),
 - cleanup code in a Xen PV fb driver,
 - and a crash fix when trying to see non-existent PTE's

* tag 'stable/for-linus-3.4-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/Kconfig: fix Kconfig layout
  xen/pci: don't use PCI BIOS service for configuration space accesses
  xen/pte: Fix crashes when trying to see non-existent PGD/PMD/PUD/PTEs
  xen/apic: Return the APIC ID (and version) for CPU 0.
  drivers/video/xen-fbfront.c: add missing cleanup code
2012-05-08 11:07:29 -07:00
Linus Torvalds e9b19cd43f Merge branch 'for-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
Pull two percpu fixes from Tejun Heo:
 "One adds missing KERN_CONT on split printk()s and the other makes
  the percpu allocator avoid using PMD_SIZE as atom_size on x86_32.

  Using PMD_SIZE led to vmalloc area exhaustion on certain
  configurations (x86_32 android) and the only cost of using PAGE_SIZE
  instead is static percpu area not being aligned to large page
  mapping."

* 'for-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
  percpu, x86: don't use PMD_SIZE as embedded atom_size on 32bit
  percpu: use KERN_CONT in pcpu_dump_alloc_info()
2012-05-08 11:06:07 -07:00