Pull generic execve() changes from Al Viro:
"This introduces the generic kernel_thread() and kernel_execve()
functions, and switches x86, arm, alpha, um and s390 over to them."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (26 commits)
s390: convert to generic kernel_execve()
s390: switch to generic kernel_thread()
s390: fold kernel_thread_helper() into ret_from_fork()
s390: fold execve_tail() into start_thread(), convert to generic sys_execve()
um: switch to generic kernel_thread()
x86, um/x86: switch to generic sys_execve and kernel_execve
x86: split ret_from_fork
alpha: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
alpha: switch to generic kernel_thread()
alpha: switch to generic sys_execve()
arm: get rid of execve wrapper, switch to generic execve() implementation
arm: optimized current_pt_regs()
arm: introduce ret_from_kernel_execve(), switch to generic kernel_execve()
arm: split ret_from_fork, simplify kernel_thread() [based on patch by rmk]
generic sys_execve()
generic kernel_execve()
new helper: current_pt_regs()
preparation for generic kernel_thread()
um: kill thread->forking
um: let signal_delivered() do SIGTRAP on singlestepping into handler
...
Notable changes:
* Basic writeback support for DISPC level. Writeback is not yet usable, though,
as we need higher level code to actually expose the writeback feature to
userspace.
* Rewriting the omapdss output drivers. We're trying to remove the hard links
between the omapdss and the panels, and this rewrite work moves us closer to
that goal.
* Cleanup and restructuring patches that have been made while working on device
tree support for omapdss. Device tree support is still some way ahead, but
these patches are good cleanups in themselves.
* Basic OMAP5 DSS support for DPI and DSI outputs.
* Workaround for the problem that GFX overlay's fifo is too small for high
resolution scenarios, causing underflows.
* Cleanups that remove dependencies to omap platform code.
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Merge tag 'omapdss-for-3.7' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next
Omapdss driver changes for the 3.7 merge window.
Notable changes:
* Basic writeback support for DISPC level. Writeback is not yet usable, though,
as we need higher level code to actually expose the writeback feature to
userspace.
* Rewriting the omapdss output drivers. We're trying to remove the hard links
between the omapdss and the panels, and this rewrite work moves us closer to
that goal.
* Cleanup and restructuring patches that have been made while working on device
tree support for omapdss. Device tree support is still some way ahead, but
these patches are good cleanups in themselves.
* Basic OMAP5 DSS support for DPI and DSI outputs.
* Workaround for the problem that GFX overlay's fifo is too small for high
resolution scenarios, causing underflows.
* Cleanups that remove dependencies to omap platform code.
Pull slave-dmaengine updates from Vinod Koul:
"This time we have Andy updates on dw_dmac which is attempting to make
this IP block available as PCI and platform device though not fully
complete this time.
We also have TI EDMA moving the dma driver to use dmaengine APIs, also
have a new driver for mmp-tdma, along with bunch of small updates.
Now for your excitement the merge is little unusual here, while
merging the auto merge on linux-next picks wrong choice for pl330
(drivers/dma/pl330.c) and this causes build failure. The correct
resolution is in linux-next. (DMA: PL330: Fix build error) I didn't
back merge your tree this time as you are better than me so no point
in doing that for me :)"
Fixed the pl330 conflict as in linux-next, along with trivial header
file conflicts due to changed includes.
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (29 commits)
dma: tegra: fix interrupt name issue with apb dma.
dw_dmac: fix a regression in dwc_prep_dma_memcpy
dw_dmac: introduce software emulation of LLP transfers
dw_dmac: autoconfigure data_width or get it via platform data
dw_dmac: autoconfigure block_size or use platform data
dw_dmac: get number of channels from hardware if possible
dw_dmac: fill optional encoded parameters in register structure
dw_dmac: mark dwc_dump_chan_regs as inline
DMA: PL330: return ENOMEM instead of 0 from pl330_alloc_chan_resources
DMA: PL330: Remove redundant runtime_suspend/resume functions
DMA: PL330: Remove controller clock enable/disable
dmaengine: use kmem_cache_zalloc instead of kmem_cache_alloc/memset
DMA: PL330: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
ARM: EXYNOS: Set the capability of pdm0 and pdm1 as DMA_PRIVATE
dma: tegra: use list_move_tail instead of list_del/list_add_tail
mxs/dma: Enlarge the CCW descriptor area to 4 pages
dw_dmac: utilize slave_id to pass request line
dmaengine: mmp_tdma: add dt support
dmaengine: mmp-pdma support
spi: davici - make davinci select edma
...
Core:
- Add DT properties for card detection (broken-cd, cd-gpios, non-removable)
- Don't poll non-removable devices
- Fixup/rework eMMC sleep mode/"power off notify" feature
- Support eMMC background operations (BKOPS). To set the one-time
programmable fuse that enables bkops on an eMMC that doesn't already
have it set, you can use the "mmc bkops enable" command in:
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git
Drivers:
- atmel-mci, dw_mmc, pxa-mci, dove, s3c, spear: Add device tree support
- bfin_sdh: Add support for the controller in bf60x
- dw_mmc: Support Samsung Exynos SoCs
- eSDHC: Add ADMA support
- sdhci: Support testing a cd-gpio (from slot-gpio) instead of presence bit
- sdhci-pltfm: Support broken-cd DT property
- tegra: Convert to only supporting DT (mach-tegra has gone DT-only)
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Merge tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball:
"Core:
- Add DT properties for card detection (broken-cd, cd-gpios,
non-removable)
- Don't poll non-removable devices
- Fixup/rework eMMC sleep mode/"power off notify" feature
- Support eMMC background operations (BKOPS). To set the one-time
programmable fuse that enables bkops on an eMMC that doesn't
already have it set, you can use the "mmc bkops enable" command in:
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git
Drivers:
- atmel-mci, dw_mmc, pxa-mci, dove, s3c, spear: Add device tree
support
- bfin_sdh: Add support for the controller in bf60x
- dw_mmc: Support Samsung Exynos SoCs
- eSDHC: Add ADMA support
- sdhci: Support testing a cd-gpio (from slot-gpio) instead of
presence bit
- sdhci-pltfm: Support broken-cd DT property
- tegra: Convert to only supporting DT (mach-tegra has gone DT-only)"
* tag 'mmc-merge-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (67 commits)
mmc: core: Fixup broken suspend and eMMC4.5 power off notify
mmc: sdhci-spear: Add clk_{un}prepare() support
mmc: sdhci-spear: add device tree bindings
mmc: sdhci-s3c: Add clk_(enable/disable) in runtime suspend/resume
mmc: core: Replace MMC_CAP2_BROKEN_VOLTAGE with test for fixed regulator
mmc: sdhci-pxav3: Use sdhci_get_of_property for parsing DT quirks
mmc: dt: Support "broken-cd" property in sdhci-pltfm
mmc: sdhci-s3c: fix the wrong number of max bus clocks
mmc: sh-mmcif: avoid oops on spurious interrupts
mmc: sh-mmcif: properly handle MMC_WRITE_MULTIPLE_BLOCK completion IRQ
mmc: sdhci-s3c: Fix crash on module insertion for second time
mmc: sdhci-s3c: Enable only required bus clock
mmc: Revert "mmc: dw_mmc: Add check for IDMAC configuration"
mmc: mxcmmc: fix bug that may block a data transfer forever
mmc: omap_hsmmc: Pass on the suspend failure to the PM core
mmc: atmel-mci: AP700x PDC is not connected to MCI
mmc: atmel-mci: DMA can be used with other controllers
mmc: mmci: use clk_prepare_enable and clk_disable_unprepare
mmc: sdhci-s3c: Add device tree support
mmc: dw_mmc: add support for exynos specific implementation of dw-mshc
...
From Tony Lindgren:
This branch contains regression fixes for omap4/5 ASoC
audio that were caused by the fact that u-boot stopped
muxing non essential pins.
As omap audio and dmaengine development happens on
these platforms, let's make sure they are usable.
Of course this should have been fixed earlier and
not during the -rc cycle.
* tag 'omap-for-v3.7-rc1/fixes-asoc-regression-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM/dts: omap5-evm: pinmux configuration for audio
ARM/dts: Add pinctrl driver entries for omap5
ARM/dts: omap4-panda: pinmux configuration for audio
ARM/dts: omap4-sdp: pinmux configuration for audio
ARM/dts: omap5-evm: Disable unused McBSP3
ARM/dts: omap4-sdp: Disable unused McBSP3
ARM/dts: omap4-panda: Disable unused audio IPs
ARM: OMAP: board-omap4panda: Pin mux configuration for audio needs
ARM: OMAP: board-4430-sdp: Pin mux configuration for audio needs
From Tony Lindgren:
These were agreed to be merged via arm soc tree as Rafael
is on vacation.
From Kevin Hilman <khilman@deeprootsystems.com>:
This series a couple bug fixes and a couple fixes that make this
driver support recently added OMAP-based SoCs.
The 'get_cpu_device' patch is needed due to a change in the OMAP
OMAP PM core code which enforces use of get_cpu_device() instead of
a deprecated OMAP-specific API.
The usage of plat/*.h headers breaks single zImage, so platforms are
cleaning up and/or removing plat/*.h so the driver needs to be fixed
accordingly.
This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into
Linus' master branch: commit 16642a2e7b.
* tag 'omap-for-v3.7-rc1/fixes-cpufreq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: PM: MPU DVFS: use generic CPU device for MPU-SS
cpufreq: OMAP: use get_cpu_device() instead of omap_device API
cpufreq: OMAP: fix clock usage to be SoC independent, remove plat/ includes
cpufreq: OMAP: remove unused <plat/omap-pm.h>
cpufreq: OMAP: ensure valid clock rate before scaling
From Kevin Hilman <khilman@deeprootsystems.com> via Tony Lindgren:
OMAP PM related fixes for v3.7-rc
* tag 'omap-for-v3.7-rc1/fixes-pm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: SmartReflex: fix error path in init function
ARM: OMAP: SmartReflex: select CONFIG_POWER_SUPPLY in Kconfig
ARM: OMAP2+: PM: fix return value check in omap2_set_init_voltage()
ARM: OMAP2+: SmartReflex: fix return value check in sr_dev_init()
ARM: OMAP: omap_device: fix return value check in omap_device_build_ss()
ARM: OMAP: fix return value check in beagle_opp_init()
From Paul Walmsley <paul@pwsan.com> via Tony Lindgren:
Some OMAP fixes for the 3.7 merge window, fixing mismerges, branch
integration issues, and bugs after the arm-soc merges.
* tag 'omap-for-v3.7-rc1/fixes-hwmod-clock-signed-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4/AM335x: hwmod: fix disable_module regression in hardreset handling
ARM: OMAP3: fix workaround for EMU clockdomain
ARM: OMAP: omap3evm: fix new sparse warning
ARM: OMAP2+: hwmod data: Fix PMU interrupt definitions
ARM: am33xx: clk: Update clkdev table to add mcasp alias
From Tony Lindgren:
This branch contains one counter locking fix and an
alignment fix. Other fixes are warning fixes, fixes
for return value checks.
I've also included removal of some extra semicolons,
dropping of some duplicate includes, and an a change
for wl12xx enumeration that are not strictly fixes
but would be good to get out of the way for -rc1.
* tag 'omap-for-v3.7-rc1/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm/omap: Replace board_ref_clock with enum values
ARM: OMAP2+: remove duplicated include from board-omap3stalker.c
arch/arm/plat-omap/omap-pm-noop.c: Remove unecessary semicolon
arch/arm/mach-omap2: Remove unecessary semicolon
arch/arm/mach-omap1/devices.c: Remove unecessary semicolon
AM35xx: Add missing hwmod entry for the HDQ/1-Wire present in AM3505/3517 CPUs.
ARM: OMAP2+: gpmc: annotate exit sections properly
ARM: OMAP: fix return value check in realtime_counter_init()
ARM: OMAP: hsmmc: fix return value check in omap_hsmmc_init_one()
OMAPDSS: fix return value check in create_dss_pdev()
ARM: OMAP2+: Add am335x evm and bone targets to common Makefile
arm: increase FORCE_MAX_ZONEORDER for TI AM33XX
ARM: OMAP: OMAP_DEBUG_LEDS needs to select LEDS_CLASS
ARM: OMAP: rx51: Fix a section mismatch warn
ARM: OMAP2+: Round of the carve out memory requested to section_size
ARM: OMAP: counter: add locking to read_persistent_clock
The it8152 PCI host used on the pxa/cm_x2xx machines
uses the old-style I/O window registration. This should
eventually get converted to pci_ioremap_io() but for
now, let's cast the IT8152_IO_BASE constant to an integer
type to get rid of the warnings.
Without this patch, building cm_x2xx_defconfig results in:
arch/arm/common/it8152.c: In function 'it8152_pci_setup':
arch/arm/common/it8152.c:287:18: warning: assignment makes integer from pointer without a cast [enabled by default]
arch/arm/common/it8152.c:288:16: warning: assignment makes integer from pointer without a cast [enabled by default]
arch/arm/common/it8152.c:291:17: warning: assignment makes integer from pointer without a cast [enabled by default]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
On NOMMU ARM, the __addr_ok() and __range_ok() macros do not evaluate
their arguments, which may lead to harmless build warnings in some
code where the variables are not used otherwise. Adding a cast to void
gets rid of the warning and does not make any semantic changes.
Without this patch, building at91x40_defconfig results in:
fs/read_write.c: In function 'rw_copy_check_uvector':
fs/read_write.c:684:9: warning: unused variable 'buf' [-Wunused-variable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
The flat_get_addr_from_rp() macro does not use the 'persistent' argument
on ARM, causing a harmless compiler warning. A cast to void removes
that warning.
Without this patch, building at91x40_defconfig results in:
fs/binfmt_flat.c: In function 'load_flat_file':
fs/binfmt_flat.c:746:17: warning: unused variable 'persistent' [-Wunused-variable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@canonical.com>
Sometimes we want the kernel build process to only print messages
on errors, e.g. in automated build testing. This uses the "kecho"
macro that the build system provides to hide a few informational
messages. Nothing changes for a regular "make" or "make V=1".
Without this patch, building any ARM kernel results in:
Kernel: arch/arm/boot/Image is ready
Kernel: arch/arm/boot/zImage is ready
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Michal Marek <mmarek@suse.cz>
The Linaro cross toolchain and probably others nowadays default to
building in THUMB2 mode. When building a kernel for a CPU that does
not support THUMB2, the compiler complains about incorrect flags.
We can work around this by setting -marm for all non-T2 builds.
-marm was passed unconditionally for C files previously, but nothing was
passed to the gcc frontend when processing .S files, resulting in a
warning. The assembler never defaults to ARM unless -Wa,-mthumb is
supplied explicitly, so the files were still assembled correctly.
This patch makes sure that -marm is passed for .S files too, and also
avoids the redundant gcc -marm -mthumb in Thumb kernels.
Without this patch, building assabet_defconfig results in:
usr/initramfs_data.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
arch/arm/nwfpe/entry.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
firmware/cis/PCMLM28.cis.gen.S:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
(and many more)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Dave Martin <dave.martin@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
* The XEN_BALLOON code requires the balloon infrastructure that is not
getting built on ARM.
* The tmem hypercall is not available on ARM
* ARMv6 does not support cmpxchg on 16-bit words that are used in the
Xen grant table code, so we must ensure that Xen support is only
built on ARMv7-only kernels not combined ARMv6/v7 kernels.
* sys-hypervisor.c needs to include linux/err.h in order to use the
IS_ERR/PTR_ERR/ERR_PTR family of functions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: xen-devel@lists.xensource.com
read_current_timer is used by get_cycles since "ARM: 7538/1: delay:
add registration mechanism for delay timer sources", and get_cycles
can be used by device drivers in loadable modules, so it has to
be exported.
Without this patch, building imote2_defconfig fails with
ERROR: "read_current_timer" [crypto/tcrypt.ko] undefined!
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Jonathan Austin <jonathan.austin@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
One such warning was recently fixed in a761cebf "ARM: Fix build warning
in arch/arm/mm/alignment.c" but only for the thumb2 case, this fixes
the other half.
arch/arm/mm/alignment.c: In function 'do_alignment':
arch/arm/mm/alignment.c:327:15: error: 'offset.un' may be used uninitialized in this function
arch/arm/mm/alignment.c:748:21: note: 'offset.un' was declared here
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
The recently added Emma Mobile GPIO driver calls set_irq_flags
and irq_set_chip_and_handler for the interrupts it exports and
it can be built as a module, which currently fails with
ERROR: "set_irq_flags" [drivers/gpio/gpio-em.ko] undefined!
We either need to replace the call to set_irq_flags with something
else or export that function. This patch does the latter.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Magnus Damm <damm@opensource.se>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Due to some interesting merges in the integrator code, not
all users of mmio pointers were converted before, this
fixes all warnings that got introduced as a consequence.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Russell fixed this bogus warning before in 2f3eca8b4f "Shut up gcc
warning in assabet.c", but apparently gcc has become smarter (or dumber)
since 2005, and the same warning came up again.
This uses the uninitialized_var() macro to convince gcc that the
variable is actually being initialized. 100 times in fact.
Without this patch, building assabet_defconfig results in:
arch/arm/mach-sa1100/assabet.c: In function 'fixup_assabet':
arch/arm/mach-sa1100/assabet.c:397:6: warning: 'scr' may be used uninitialized in this function [-Wuninitialized]
arch/arm/mach-sa1100/assabet.c:389:16: note: 'scr' was declared here
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Patch 35f2b0bd59 "ARM: shmobile: Move definition of shmobile_init_late()
to header" moved the definition of the shmobile_init_late function, but
dropped the __init annotation, which is now causing warnings because
the function calls shmobile_suspend_init, which is also marked init.
Without this patch, building kota2_defconfig results in:
WARNING: vmlinux.o(.text+0xb7c8): Section mismatch in reference from the function shmobile_init_late() to the function .init.text:shmobile_suspend_init()
The function shmobile_init_late() references
the function __init shmobile_suspend_init().
This is often because shmobile_init_late lacks a __init
annotation or the annotation of shmobile_suspend_init is wrong.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Magnus Damm <damm@opensource.se>
Cc: Simon Horman <horms@verge.net.au>
The mls instruction is not available in ARMv6K or below, so we
should make the test conditional on at least ARMv7. ldrexd/strexd
are available in ARMv6K or ARMv7, which we can test by checking
the CONFIG_CPU_32v6K symbol.
/tmp/ccuMTZ8D.s: Assembler messages:
/tmp/ccuMTZ8D.s:22188: Error: selected processor does not support ARM mode `mls r0,r1,r2,r3'
/tmp/ccuMTZ8D.s:22222: Error: selected processor does not support ARM mode `mlshi r7,r8,r9,r10'
/tmp/ccuMTZ8D.s:22252: Error: selected processor does not support ARM mode `mls lr,r1,r2,r13'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Leif Lindholm <leif.lindholm@arm.com>
Michael Olbrich reported that his test program fails when built with
-O2 -mcpu=cortex-a8 -mfpu=neon, and a kernel which supports v6 and v7
CPUs:
volatile int x = 2;
volatile int64_t y = 2;
int main() {
volatile int a = 0;
volatile int64_t b = 0;
while (1) {
a = (a + x) % (1 << 30);
b = (b + y) % (1 << 30);
assert(a == b);
}
}
and two instances are run. When built for just v7 CPUs, this program
works fine. It uses the "vadd.i64 d19, d18, d16" VFP instruction.
It appears that we do not save the high-16 double VFP registers across
context switches when the kernel is built for v6 CPUs. Fix that.
Cc: <stable@vger.kernel.org>
Tested-By: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
It appears that performing a "movs pc, lr" to force the kernel into
SVC mode on the OMAP2420 (ARM1136) prevents the platform from booting
correctly (change introduced in 80c59da [ARM: virt: allow the kernel
to be entered in HYP mode]).
While the reason it fails is not understood yet (the same code runs
fine on the OMAP2430, ARM1136 as well), partially revert that change
for platforms that do not enter in HYP mode, preserving the new
feature and restoring a working kernel on the OMAP2420.
Reported-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
.fault now can retry. The retry can break state machine of .fault. In
filemap_fault, if page is miss, ra->mmap_miss is increased. In the second
try, since the page is in page cache now, ra->mmap_miss is decreased. And
these are done in one fault, so we can't detect random mmap file access.
Add a new flag to indicate .fault is tried once. In the second try, skip
ra->mmap_miss decreasing. The filemap_fault state machine is ok with it.
I only tested x86, didn't test other archs, but looks the change for other
archs is obvious, but who knows :)
Signed-off-by: Shaohua Li <shaohua.li@fusionio.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Implement an interval tree as a replacement for the VMA prio_tree. The
algorithms are similar to lib/interval_tree.c; however that code can't be
directly reused as the interval endpoints are not explicitly stored in the
VMA. So instead, the common algorithm is moved into a template and the
details (node type, how to get interval endpoints from the node, etc) are
filled in using the C preprocessor.
Once the interval tree functions are available, using them as a
replacement to the VMA prio tree is a relatively simple, mechanical job.
Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Introduce HAVE_DEBUG_KMEMLEAK config option and select it in corresponding
architecture Kconfig files. DEBUG_KMEMLEAK now only depends on
HAVE_DEBUG_KMEMLEAK.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Introduce HAVE_UID16 config option and select it in corresponding
architecture Kconfig files. UID16 now only depends on HAVE_UID16.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As per mx27 reference manual, H264DIV and SSI2DIV are 6-bit wide fields in
register PCDR0.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit eb05f69129 ("ARM: OMAP: hwmod:
partially un-reset hwmods might not be properly enabled") added code
to skip the IP block disable sequence if all of the block's hardreset
lines weren't asserted. But this did not handle the case when no
hardreset lines were associated with a module, which is the general
case. In that situation, the IP block disable would be skipped. This
is likely to cause PM regressions.
So, modify _omap4_disable_module() and _am33xx_disable_module() to
only bail out early if there are any hardreset lines asserted. And
move the AM33xx test above the actual module disable code to ensure
that the behavior is consistent.
Reported-by: Archit Taneja <a0393947@ti.com>
Tested-by: Archit Taneja <a0393947@ti.com> # DSS
Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Acked-by: Vaibhav Hiremath <hvaibhav@ti.com>
Tested-by: Vaibhav Hiremath <hvaibhav@ti.com> # AM335x
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Commit b71c721 (ARM: OMAP2+: clockdomain/hwmod: add workaround for EMU
clockdomain idle problems) added a workaround for the EMU clock domain on
OMAP3/4 devices to prevent the clock domain for transitioning while it is
in use.
In the proposed patch [1] code was added to the omap3xxx_clkdm_clk_enable()
and omap3xxx_clkdm_clk_disable() functions to check for the flag
CLKDM_MISSING_IDLE_REPORTING and perform the appropriate action. However, in the
merged patch it appears that this code was added to the omap2_clkdm_clk_enable()
and omap2_clkdm_clk_disable() functions by mistake.
[1] http://marc.info/?l=linux-arm-kernel&m=134383567112518&w=2
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Use the enum for board_ref_clock from linux/wl12xx.h
Signed-off-by: Vikram Narayanan <vikram186@gmail.com>
Cc: linux-omap@vger.kernel.org
Reviewed-by: Pankaj Jangra<jangra.pankaj9@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Remove duplicated include.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
u-boot stopped configuring 'non essential' pins recently. The kernel needs
to configure the mux for audio needs.
Since the pinmux for these IPs are static let pinctrl to handle the mux
configuration for.
Configuring the mux for: twl6040 (audpwron), McPDM, DMIC, McBSP1 and McBSP2.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
These all use the generic pinctrl-single driver for the padconf registers.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
u-boot stopped configuring 'non essential' pins recently. The kernel needs
to configure the mux for audio needs.
Since the pinmux for these IPs are static let pinctrl to handle the mux
configuration for.
Configuring the mux for: twl6040 (audpwron, irq), McPDM and McBSP1.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
u-boot stopped configuring 'non essential' pins recently. The kernel needs
to configure the mux for audio needs.
Since the pinmux for these IPs are static let pinctrl to handle the mux
configuration for.
Configuring the mux for: twl6040 (audpwron, irq), McPDM, DMIC, McBSP1 and
McBSP2.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
McBSP3 is not usable on OMAP4 SDP/Blaze (the pins used for McPDM).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
McBSP3 is not usable on OMAP4 SDP/Blaze (the pins used for McPDM).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
McBSP2, McBSP3 and DMIC is not usable on PandaBoard (not connected, no
external pins provided for them).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
u-boot stopped configuring 'non essential' pins recently. These pins are
essential for audio and need to be done to have working audio on the board.
Pin Mux configuration for: twl6040 audpwron gpio, McPDM, and McBSP1.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
u-boot stopped configuring 'non essential' pins recently. These pins are
essential for audio and need to be done to have working audio on the board.
Pin Mux configuration for: twl6040 audpwron gpio, McPDM, DMIC, McBSP1 and
McBSP2.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
driver support recently added OMAP-based SoCs.
The 'get_cpu_device' patch is needed due to a change in the OMAP
OMAP PM core code which enforces use of get_cpu_device() instead of
a deprecated OMAP-specific API.
The usage of plat/*.h headers breaks single zImage, so platforms are
cleaning up and/or removing plat/*.h so the driver needs to be fixed
accordingly.
This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into
Linus' master branch: commit 16642a2e7b.
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Merge tag 'for_3.7-fixes-cpufreq' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-v3.7-rc1/fixes-cpufreq
This series a couple bug fixes and a couple fixes that make this
driver support recently added OMAP-based SoCs.
The 'get_cpu_device' patch is needed due to a change in the OMAP
OMAP PM core code which enforces use of get_cpu_device() instead of
a deprecated OMAP-specific API.
The usage of plat/*.h headers breaks single zImage, so platforms are
cleaning up and/or removing plat/*.h so the driver needs to be fixed
accordingly.
This series is based on the merge of Rafael's pm-for-3.7-rc1 tag into
Linus' master branch: commit 16642a2e7b.
This patch adds a missing hwmod entry for the HDQ/1-Wire module present
in the AM3505/17 CPUs.
This restores 1-Wire support to our AM3505 boards. We think it probably
stopped working with commit 96b1b29d37
ARM: OMAP2+: HDQ1W: use omap_device
Signed-off-by: Raphael Assenat <raph@8d.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
compiler complained,
`gpmc_remove' referenced in section `.data' of arch/arm/mach-omap2/built-in.o: defined in discarded section `.exit.text' of arch/arm/mach-omap2/built-in.o
Annotate gpmc_remove function and dependents with __devexit.
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
