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Rather than having this hacked into the OF initialiation function, we
can handle this via the enable function instead. While here, clean
up that code and comments a little.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Avoid unnecessary writes to the auxiliary control register if the
register already contains the required value. This allows us to
avoid invoking the platforms secure monitor code unnecessarily.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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We should write the auxillary control register before unlocking: the
write may be necessary to enable non-secure access to the lock
registers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Providing an enable method gives L2 cache controllers a chance to do
special handling at enable time. This allows us to remove a hack in
l2x0_unlock() for Marvell Aurora L2 caches.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Back in the mists of time, someone decided that it would be a good idea
to group like functions together - so all the save functions in one
place, all the resume functions in another, all the OF parsing functions
some place else.
This makes it difficult to get an overview on what a particular
implementation is doing - grouping an implementations specific functions
together makes more sense, because you can see what it's doing without
the clutter of other implementations.
Organise it according to implementation.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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There's no reason this functionality should be specific to DT, so move
it into the common initialisation function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Pass the iomem address into this function so we don't have to keep
accessing it from a global.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rather than having a boolean and other tricks to disable some bits of
l2x0_init(), split this function into two parts: a common part shared
between OF and non-OF, and the non-OF part.
The common part can take a block of function pointers, and the cache
ID (to cope with Aurora's DT specified ID.) Eliminate the redundant
setting of l2x0_base in the OF case, moving it to the non-OF init
function.
This allows us to localise the OF-specific initialisation handling
from the non-OF handling.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The revision namespace is specific to the L2 cache part, so don't name
these with generic identifiers, use a part specific identifier.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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cache_wait_way() is actually used to wait for a particular mask to
report clear; it's not really got much to do with cache ways at all.
Indeed, it gets used to wait for the C bit to clear on older caches.
Rename this with a more generic function name which better reflects
its purpose: l2c_wait_mask().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Provide a generic helper function for way based operations. These are
always background operations, and thus have to be waited for before a
new operation is commenced. This helper extracts that requirement from
several locations in the code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Split the cache unlock code out of l2x0_unlock(). We want to be able
to re-use this functionality later.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Provide a generic function which always calls the set_debug method.
This will be used later in the series as some work-arounds require
that the debug register be written.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rename a few things to help distinguish their function(s):
l2x0_of_data -> l2c_init_data
setup -> of_parse
add of_ prefix to OF specific data
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Remove NULL initialisers, make these all __initconst structures, and
order their members in the same order as the structure declaration.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Make it easier to declare L2 cache controller DT IDs by using a macro.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add WARN_ON() conditions to outer_disable() to ensure that its
requirements aren't violated.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch changes the valid email address to maintain the f2fs file system.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Daniel Mack says:
====================
mdio: Parse DT nodes for auto-probed PHYs
Here's v2.
v1 -> v2:
* Switch to of_property_read_u32() in patch #1
* Check for mdio->dev_of_node in patch #2
* Added Florian's Reviewed-by: tags
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_get_property() can be called with NULL as 2nd argument if the caller
is not interested in the length of a property. Use that here so we can
get rid of a variable.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a function to walk the list of subnodes of a mdio bus and look for
a node that matches the phy's address with its 'reg' property. If found,
set the of_node pointer for the phy. This allows auto-probed pyh
devices to be augmented by information passed in via DT.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Factor out some logic into of_mdio_parse_addr() so it can be reused
later. While at it, use of_property_read_u32() rather than open-coding
the same logic again.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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add_pcie_port() is called only from exynos_pcie_probe(), which is annotated
with __init. Thus it makes sense to annotate add_pcie_port() with __init
to avoid the following section mismatch warning:
WARNING: drivers/pci/built-in.o(.text.unlikely+0xf8): Section mismatch in reference from the function add_pcie_port() to the function .init.text:dw_pcie_host_init()
The function add_pcie_port() references
the function __init dw_pcie_host_init().
This is often because add_pcie_port lacks a __init
annotation or the annotation of dw_pcie_host_init is wrong.
[bhelgaas: changelog]
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"Fix CoW regression for transparent hugepages by routing set_pmd_at to
set_pte_at, which correctly handles PTE_WRITE and will mark the
resulting table entry as read-only where appropriate"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: fix pmd_write CoW brokenness
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes from Rafael Wysocki:
"These are three stable-candidate fixes, one for the ACPI thermal
driver and two for cpufreq drivers.
Specifics:
- A workqueue is destroyed too early during the ACPI thermal driver
module unload which leads to a NULL pointer dereference in the
driver's remove callback. Fix from Aaron Lu.
- A wrong argument is passed to devm_regulator_get_optional() in the
probe routine of the cpu0 cpufreq driver which leads to resource
leaks if the driver is unbound from the cpufreq platform device.
Fix from Lucas Stach.
- A lock is missing in cpufreq_governor_dbs() which leads to memory
corruption and NULL pointer dereferences during system
suspend/resume, for example. Fix from Bibek Basu"
* tag 'pm+acpi-3.15-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / thermal: fix workqueue destroy order
cpufreq: cpu0: drop wrong devm usage
cpufreq: remove race while accessing cur_policy
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Add interface mode detection for Octeon II. This is necessary to detect
the interface modes correctly on the UBNT E200 board. Code is taken
from the UBNT GPL source release, with some alterations: SRIO, ILK and
RXAUI interface modes are removed and instead return disabled as these
modes are not currently supported.
Signed-off-by: Alex Smith <alex.smith@imgtec.com>
Tested-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7039/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.linaro.org/people/mike.turquette/linux
Pull clock fixes from Mike Turquette:
"Small number of user-visible regression fixes for clock drivers.
There is a memory leak fix for an ST platform, an infinite Loop Of
Doom fix for the recent changes to the basic clock divider (hopefully
the last fix for those recent changes) and some Tegra PLL changes
which keep PCI from being hosed on that platform"
* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
clk: st: Fix memory leak
clk: divider: Fix table round up function
clk: tegra: Fix enabling of PLLE
clk: tegra: Introduce divider mask and shift helpers
clk: tegra: Fix PLLE programming
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This reverts commit 0ade4a34fd439d62df46937e8f3e584eb0879579 as it was
wrong.
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Those flags are obsolete and checking them can incorrectly cause
remount operations to fail.
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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Place the call to resend the failed GETATTR under the error handler so that
when appropriate, the GETATTR is retried more than once.
The server can fail the GETATTR op in the OPEN compound with a recoverable
error such as NFS4ERR_DELAY. In the case of an O_EXCL open, the server has
created the file, so a retrans of the OPEN call will fail with NFS4ERR_EXIST.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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Fixed a misplaced brace in a function
Signed-off-by: Chaitanya Hazarey <c@24.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ION system heap keeps pages in its pool for better performance. When the
system is under memory pressure, slab shrinker calls the callback
registered and then the pages pooled get freed.
When the shrinker is called, it checks gfp_mask and determines whether
the pages from highmem need to be freed or the pages from lowmem.
Usually, slab shrinker is invoked on kswapd context which gfp_mask is
always GFP_KERNEL, so only lowmem pages are released on kswapd context.
This means that highmem pages in the pool are never reclaimed until
direct reclaim occurs. This can be problematic when the page pool holds
excessive amounts of highmem.
For now, the shrinker callback cannot know exactly which zone should be
targeted for reclamation, as enough information are not passed to. Thus,
it makes sense to shrink both lowmem and highmem zone on kswapd context.
Reported-by: Wonseo Choi <wonseo.choi@samsung.com>
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Reviewed-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using compound pages relieves burden on tracking the meta information
which are currently stored in page_info.
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Reviewed-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The page pool uses an internal data structure, ion_page_pool_item, for
wrapping pooled pages and constructing a list. As the struct page
already provides ways for doing exactly the same thing, we do not need
to reinvent the wheel. This commit removes the data structure and slab
allocations for it.
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Reviewed-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ion_page_pool_total() returns the total number of pages in the pool.
Depending on the argument passed, it counts highmem pages in or not.
This commit simplifies the code lines for better readability.
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Reviewed-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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For aesthetics and readability, rename goto labels, remove
useless code lines, and clarify function return type.
Signed-off-by: Heesub Shin <heesub.shin@samsung.com>
Reviewed-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Update sunxi_defconfig and multi_v7 with all the latest Allwinner
additions.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Linux 3.15-rc6
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dt fixes and and clocks for v3.16 merge window" from Tony Lindgren:
Most likely the last pull request from me for omap changes for
v3.16 that's dts fixes for clocks and enabling few features
that were still being discussed earlier:
- A bunch of omap clock related dts fixes queued by Tero Kristo.
- Enable parallel nand on am437x that was not merged earlier as
I requested more information about the muxing for it. And
we need to also enable ecc hardware support for am43xx.
- Enable the modem support for n900 that was dropped earlier
because we had to fix the related hwmod entry first with patch
ARM: OMAP2+: Fix ssi hwmod entry to allow idling.
- And finally, add the omap2 clock dts files. These will allow
us to enable the dt clocks and drop the legacy clocks for omap2
with a follow-up patch once the related clock driver binding
changes are merged.
* tag 'omap-for-v3.16/dt-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap2 clock data
ARM: dts: am437x-gp-evm: add support for parallel NAND flash
ARM: OMAP2+: gpmc: enable BCH_HW ecc-scheme for AM43xx platforms
ARM: dts: omap3 a83x: fix duplicate usb pin config
ARM: dts: omap3: set mcbsp2 status
ARM: dts: omap3-n900: Add modem support
ARM: dts: omap3-n900: Add SSI support
ARM: OMAP2+: Fix ssi hwmod entry to allow idling
ARM: dts: AM4372: clk: efuse based crystal frequency detect
ARM: dts: am43xx-clocks.dtsi: add ti, set-rate-parent to display clock path
ARM: dts: omap5-clocks.dtsi: add ti, set-rate-parent to dss_dss_clk
ARM: dts: omap4: add twd clock to DT
ARM: dts: omap54xx-clocks: Correct abe_iclk clock node
ARM: dts: omap54xx-clocks: remove the autoidle properties for clock nodes
ARM: dts: am43x-clock: add tbclk data for ehrpwm
ARM: dts: am33xx-clock: Fix ehrpwm tbclk data
ARM: dts: set 'ti,set-rate-parent' for dpll4_m5 path
ARM: dts: use ti,fixed-factor-clock for dpll4_m5x2_mul_ck
ARM: dts: am43xx-clocks: use ti, fixed-factor-clock for dpll_per_clkdcoldo
Signed-off-by: Olof Johansson <olof@lixom.net>
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When targetting ARCH_MULTIPLATFORM, we may include support for SoCs with
PCI-capable devices (e.g. mach-virt with virtio-pci).
This patch allows PCI support to be selected for these SoCs by selecting
CONFIG_MIGHT_HAVE_PCI when CONFIG_ARCH_MULTIPLATFORM=y and removes the
individual selections from multi-platform enabled SoCs.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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filter gets assigned the address of blk_default_cmd_filter on
entry to this function, so the !filter condition can never be true.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The memory alias support has been removed since a1f4d39500 (KVM: Remove
memory alias support). So remove unalias_gfn from the MIPS port.
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung 2nd clock updates for 3.16" from Kukjin Kim:
- Add missing sysmmu clocks for DISP and ISP blocks for exynos5250
* tag 'samsung-clk-2' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks
Signed-off-by: Olof Johansson <olof@lixom.net>
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kgdb_nmi_tty_enabled is used for two unrelated purposes, namely to
suppress normal TTY input handling and to suppress console output
(although it has no effect at all on TTY output). A much better way to
handle muting the console is to not have to mute it in the first place!
That's what this patch does.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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kgdb_nmi uses tasklets on the assumption they will not be scheduled
until the next timer tick. This assumption is invalid and can lead to
live lock, continually servicing the kgdb_nmi tasklet. This is fixed
by using the timer API instead.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This corrects a crash in kgdb_nmi_tty_shutdown() which occurs when
the function is called with port->tty set to NULL.
All conversions between struct tty_port and struct kgdb_nmi_tty_priv
have been switched to direct calls to container_of() to improve code
clarity and consistancy.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In (c7d44a02a serial_core: Commonalize crlf when working w/ a non open
console port) the core was modified to make the UART poll_put_char()
automatically convert LF to CRLF. This driver's poll_put_char() adds a
CR itself and this was not disabled by the above patch meaning
currently it sends two CR characters.
The code to issue a character is shared by the console write code (where
driver must do LF to CRLF conversion, although it can make use of the
uart_console_write() helper function) and the poll_put_char (where
driver must not do the conversion). For that reason we add a flag rather
than simply rip out the conversion code.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After 07d410e0) serial: sirf: fix spinlock deadlock issue it is no longer
possiblet to compile this driver. The rename of one of the spinlocks is
faulty. After looking at the original patch I believe this is the correct
fix.
Compile tested using ARM's multi_v7_defconfig
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Barry Song <baohua@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Now that the config option is gone, the driver needs to be converted
over to using the dynamic_debug infrastructure, like all other USB
drivers have been already.
Cc: Christian Lamparter <chunkeey@googlemail.com>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: John W. Linville <linville@tuxdriver.com>
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The config option is gone, so port the driver over to using the dynamic
debug infrastructure instead, like all other USB drivers.
Cc: Jarod Wilson <jarod@wilsonet.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Cc: Matina Maria Trompouki <mtrompou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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