15 Dec, 2011
3 commits
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Currently we use a shared irq handler to identify uart activity and then
trigger a timer. By default the timeout value is zero and can be set or
modified from sysfs. If there was no uart activity for the period set
through sysfs, the timer will expire and call timer handler this will
set a flag can_sleep using which decision to gate uart clocks can be taken.Since the clock gating mechanism is outside the uart driver, we currently
use this mechanism. In preparation to runtime implementation for omap-serial
driver we can cleanup this mechanism and use runtime API's to gate uart clocks.Removes the following:
* timer related info from local uart_state struct
* the code used to set timeout value from sysfs.
* irqflags used to set shared irq handler.
* un-used function omap_uart_check_wakeup.Signed-off-by: Govindraj.R
Acked-by: Greg Kroah-Hartman (for drivers/tty changes)
Signed-off-by: Kevin Hilman -
We had been using traditional 8250 driver as uart console driver
prior to omap-serial driver. Since we have omap-serial driver
in mainline kernel for some time now it has been used as default
uart console driver on omap2+ platforms. Remove 8250 support for
omap-uarts.Serial_in and serial_out override for 8250 serial driver is also
removed. Empty fifo read fix is already taken care with omap-serial
driver with data ready bit check from LSR reg before reading RX fifo.
Also waiting for THRE(transmit hold reg empty) is done with wait_for_xmitr
in omap-serial driver.Serial_in/out overrides are not neceesary for omap-serial driver
and things that are taken with omap-serial driver are removed here.Remove headers that were necessary to support 8250 support
and remove all config bindings done to keep 8250 backward compatibility
while adding omap-serial driver. Remove omap_uart_reset needed for
8250 autoconf.Signed-off-by: Govindraj.R
Signed-off-by: Kevin Hilman -
In preparation to UART runtime conversion remove uart specific calls
from pm24xx/34xx files and their definition from serial.c
These func calls will no more be used with upcoming uart runtime design.1.) omap_uart_prepare_suspend :- can be taken care with driver suspend hooks.
2.) omap_uart_enable_irqs :- Used to enable/disable uart irq's in suspend
path from PM code, this is removed as same is handled by
uart_suspend_port/uart_resume_port in omap-serial driver which will
do an port_shutdown on suspend freeing irq and port_startup on resume
enabling back irq.
3.) Remove prepare_idle/resume_idle calls used to gate uart clocks.
UART clocks can be gated within driver using runtime funcs
and be woken up using irq_chaining from omap_prm driver.
4.) Remove console_locking from idle path as clock gating is done withing
driver itself with runtime API. Remove is_suspending check used to acquire
console_lock.Signed-off-by: Govindraj.R
Signed-off-by: Kevin Hilman
14 Dec, 2011
6 commits
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This patch adds cpu type, macros for identification of TI814X device.
Signed-off-by: Hemant Pedanekar
[tony@atomide.com: left out CK_TI814X for now]
Signed-off-by: Tony Lindgren -
This patch updates existing macros, functions used for TI816X, to enable
addition of other SoCs belonging to TI81XX family (e.g., TI814X).The approach taken is to use TI81XX/ti81xx for code/data going to be common
across all TI81XX devices.cpu_is_ti81xx() is introduced to handle code common across TI81XX devices.
In addition, ti8168_evm_map_io() is now replaced with ti81xx_map_io() and moved
in mach-omap2/common.c as same will be used for TI814X and is not board
specific.Signed-off-by: Hemant Pedanekar
Signed-off-by: Tony Lindgren -
Add support for detection of the next chip in the OMAP4 family: OMAP4470 ES1.0
For more details on OMAP4470, visit:
http://focus.ti.com/general/docs/wtbu/wtbuproductcontent.tsp?templateId=6123&navigationId=12869&contentId=123362Signed-off-by: Leonid Iziumtsev
Signed-off-by: Tony Lindgren -
allow for the omap4430 es2.3 revision to be recognized in the
omap4_check_revision() function.most aspects of all omap4430 es2.x versions are identical, however
a number of small variations such as default pullup or pulldown
resistor configurations vary between revisions.detailed information on silicon errata for omap4430 revisions can
be found at http://focus.ti.com/pdfs/wtbu/swpz009D.pdfSigned-off-by: David Anders
Signed-off-by: Tony Lindgren -
This patch updates the common machine specific source files for
support for AM33XX/AM335x with cpu type, macros for identification of
AM33XX/AM335X device.Signed-off-by: Afzal Mohammed
Signed-off-by: Vaibhav Hiremath
Reviewed-by: Kevin Hilman
Tested-by: Kevin Hilman
[tony@atomide.com: updated for map_io and common.h changes, dropped CK_AM33XX]
Signed-off-by: Tony Lindgren -
This patch updates the common platform files with AM335X device
support (AM33XX family).The approach taken in this patch is,
AM33XX device will be considered as OMAP3 variant, and a separate
SoC class created for AM33XX family of devices with a subclass type
for AM335X device, which is newly added device in the family.This means, cpu_is_omap34xx(), cpu_is_am33xx() and cpu_is_am335x()
checks will return success on AM335X device.
A kernel config option CONFIG_SOC_OMAPAM33XX is added under OMAP3
to include support for AM33XX build.Also, cpu_mask and RATE_IN_XXX flags have crossed 8 bit hence
struct clksel_rate.flags, struct prcm_config.flags and cpu_mask
are changed to u16 from u8.Signed-off-by: Afzal Mohammed
Signed-off-by: Vaibhav Hiremath
Cc: Hemant Pedanekar
[tony@atomide.com: left out CK_AM33XX for now]
Signed-off-by: Tony Lindgren
07 Dec, 2011
1 commit
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ARM restart changes needed changes to common.h to make it local.
This conflicted with v3.2-rc4 DSS related hwmod changes that
git mergetool was not able to handle.Signed-off-by: Tony Lindgren
Signed-off-by: Russell King
06 Dec, 2011
5 commits
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Otherwise we get the following error:
In function 'omap_init_consistent_dma_size':
error: implicit declaration of function 'init_consistent_dma_size'Signed-off-by: Tony Lindgren
Acked-by: Nicolas Pitre
Signed-off-by: Russell King -
Conflicts:
arch/arm/common/gic.c
arch/arm/plat-omap/include/plat/common.h -
Fix the below build break by including common.h
arch/arm/mach-omap2/cpuidle34xx.c: In function 'omap3_enter_idle':
arch/arm/mach-omap2/cpuidle34xx.c:117: error: implicit declaration of function 'omap_irq_pending'
make[1]: *** [arch/arm/mach-omap2/cpuidle34xx.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2Signed-off-by: Santosh Shilimkar
Signed-off-by: Russell King -
Fix the build break by adding the necessary irq functions to
common header.Signed-off-by: Santosh Shilimkar
Signed-off-by: Russell King
03 Dec, 2011
1 commit
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…l/git/maz/arm-platforms into devel-stable
02 Dec, 2011
13 commits
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This patch introduces .enable_irq and .disable_irq into
struct arm_pmu_platdata, so platform specific irq enablement
can be handled after request_irq, and platform specific irq
disablement can be handled before free_irq.This patch is for support of pmu irq routed from CTI on omap4.
Acked-by: Jean Pihet
Reviewed-by: Will Deacon
Signed-off-by: Ming Lei
Signed-off-by: Will Deacon -
OMAP4 uses cross trigger interface(CTI) to route
performance monitor irq to GIC, so introduce cti
helpers to make access for cti easily.Acked-by: Jean Pihet
Signed-off-by: Ming Lei
Signed-off-by: Will Deacon -
armpmu_get_max_events is only called from perf_num_counters, so we can
inline it there. It existed as a separate entity as a hangover from
the original perf-based oprofile implementation.Signed-off-by: Will Deacon
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Commit 8f622422 ("perf events: Add generic front-end and back-end
stalled cycle event definitions") added two new ABI events for counting
stalled cycles.This patch adds support for these new events to the ARM perf
implementation.Cc: Jamie Iles
Cc: Jean Pihet
Signed-off-by: Will Deacon -
This patch updates the ARMv7 perf event numbers so that:
(1) A consistent naming scheme is used between different CPUs.
(2) Only events actually used by Linux are described.
(3) Where possible, architected events are used in preference to
CPU-specific events.This results in the removal of a load of unused, hardcoded data and
makes it more clear as to which events are supported on each PMU.Cc: Jean Pihet
Signed-off-by: Will Deacon -
Trivial fix to fix below build error:
CC arch/arm/mach-exynos/mach-universal_c210.o
arch/arm/mach-exynos/mach-universal_c210.c:24: error: expected identifier or '(' before '
Signed-off-by: Marc Zyngier -
Fix below build error:
CC arch/arm/mach-exynos/cpu.o
arch/arm/mach-exynos/cpu.c: In function 'exynos4_init_irq':
arch/arm/mach-exynos/cpu.c:245: error: 'gic_bank_offset' undeclared (first use in this function)
arch/arm/mach-exynos/cpu.c:245: error: (Each undeclared identifier is reported only once
arch/arm/mach-exynos/cpu.c:245: error: for each function it appears in.)
arch/arm/mach-exynos/cpu.c:243: warning: unused variable 'bank_offset'
make[1]: *** [arch/arm/mach-exynos/cpu.o] Error 1
make: *** [arch/arm/mach-exynos] Error 2Signed-off-by: Axel Lin
Signed-off-by: Marc Zyngier -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
ocfs2: avoid unaligned access to dqc_bitmap
ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
ocfs2: honor O_(D)SYNC flag in fallocate
ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
ocfs2: send correct UUID to cleancache initialization
ocfs2: Commit transactions in error cases -v2
ocfs2: make direntry invalid when deleting it
fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
ocfs2: Avoid livelock in ocfs2_readpage()
ocfs2: serialize unaligned aio
ocfs2: Implement llseek()
ocfs2: Fix ocfs2_page_mkwrite()
ocfs2: Add comment about orphan scanning
ocfs2: Clean up messages in the fs
ocfs2/cluster: Cluster up now includes network connections too
ocfs2/cluster: Add new function o2net_fill_node_map()
ocfs2/cluster: Fix output in file elapsed_time_in_ms
ocfs2/dlm: dlmlock_remote() needs to account for remastery
ocfs2/dlm: Take inflight reference count for remotely mastered resources too
ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
... -
The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned. The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit(). These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)So some 64bit architectures may not be able to access the dqc_bitmap
correctly.This avoids such unaligned access by using another wrapper functions for
ext2_*_bit(). The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.Signed-off-by: Akinobu Mita
Acked-by: Joel Becker
Cc: Mark Fasheh
Signed-off-by: Andrew Morton
Signed-off-by: Joel Becker -
* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: 7182/1: ARM cpu topology: fix warning
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
ARM: 7176/1: cpu_pm: register GIC PM notifier only once
ARM: 7175/1: add subname parameter to mfp_set_groupg callers
ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
ARM: 7170/2: fix compilation breakage in entry-armv.S
ARM: 7168/1: use cache type functions for arch_get_unmapped_area
ARM: perf: check that we have a platform device when reserving PMU
ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
ARM: 7163/2: PL330: Only register usable channels
ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
ARM: 7161/1: errata: no automatic store buffer drain
ARM: perf: initialise used_mask for fake PMU during validation
ARM: PMU: remove pmu_init declaration
ARM: PMU: re-export release_pmu symbol to modules -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix meta data raid-repair merge problem
Btrfs: skip allocation attempt from empty cluster
Btrfs: skip block groups without enough space for a cluster
Btrfs: start search for new cluster at the beginning
Btrfs: reset cluster's max_size when creating bitmap
Btrfs: initialize new bitmaps' list
Btrfs: fix oops when calling statfs on readonly device
Btrfs: Don't error on resizing FS to same size
Btrfs: fix deadlock on metadata reservation when evicting a inode
Fix URL of btrfs-progs git repository in docs
btrfs scrub: handle -ENOMEM from init_ipath()
01 Dec, 2011
11 commits
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Commit 4a54c8c16 introduced raid-repair, killing the individual
readpage_io_failed_hook entries from inode.c and disk-io.c. Commit
4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to
disk-io.c.The raid-repair commit had logic to disable raid-repair, if
readpage_io_failed_hook is set. Thus, the readahead commit effectively
disabled raid-repair for meta data.This commit changes the logic to always attempt raid-repair when needed and
call the readpage_io_failed_hook in case raid-repair fails. This is much
more straight forward and should have been like that from the beginning.Signed-off-by: Jan Schmidt
Reported-by: Stefan Behrens
Signed-off-by: Chris Mason -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Fix RCU lockdep splats
IB/ipoib: Prevent hung task or softlockup processing multicast response
IB/qib: Fix over-scheduling of QSFP work
RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
IB/qib: Don't use schedule_work() -
* 'dt-for-linus' of git://sources.calxeda.com/kernel/linux:
of: Add Silicon Image vendor prefix
of/irq: of_irq_init: add check for parent equal to child node -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: twl: fix twl4030 support for smps regulators
regulator: fix use after free bug
regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator -
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
ARM: ux500: update defconfig
ARM: u300: update defconfig
ARM: at91: enable additional boards in existing soc defconfig files
ARM: at91: refresh soc defconfig files for 3.2
ARM: at91: rename defconfig files appropriately
ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
ARM: OMAP2+: Remove empty io.h
ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
ARM: OMAP: smartreflex: fix IRQ handling bug
ARM: OMAP: PM: only register TWL with voltage layer when device is present
ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
arm: mx28: fix bit operation in clock setting
ARM: imx: export imx_ioremap
ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
MAINTAINERS: Add missing directory
ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
ARM: imx6q: move clock register map to machine_desc.map_io
ARM: pxa168/gplugd: add the correct SSP device
ARM: Update mach-types to fix mxs build breakage
... -
kernel/sched.c:7354:2: warning: initialization from incompatible pointer type
Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef
use int cpu instead of unsigned int cpuCc:
Signed-off-by: Vincent Guittot
Signed-off-by: Russell King -
The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be
UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a
SWP instruction will cause an oops when the kprobes emulation code
executes an undefined instruction.As the SWP instruction should be rare or non-existent in kernels for
ARMv6 and later, we can simply avoid these problems by not allowing
probing of these.Reported-by: Leif Lindholm
Tested-by: Leif Lindholm
Acked-by: Nicolas Pitre
Signed-off-by: Jon Medhurst
Signed-off-by: Russell King -
There is a kprobes testcase for the instruction "strd r2, [r3], r4".
This has unpredictable behaviour as it uses r3 for register writeback
addressing and also stores it to memory.On a cortex A9, this testcase would fail because the instruction writes
the updated value of r3 to memory, whereas the kprobes emulation code
writes the original value.Fix this by changing testcase to used r5 instead of r3.
Reported-by: Leif Lindholm
Tested-by: Leif Lindholm
Acked-by: Nicolas Pitre
Signed-off-by: Jon Medhurst
Signed-off-by: Russell King -
If we don't have a cluster, don't bother trying to allocate from it,
jumping right away to the attempt to allocate a new cluster.Signed-off-by: Alexandre Oliva
Signed-off-by: Chris Mason -
We test whether a block group has enough free space to hold the
requested block, but when we're doing clustered allocation, we can
save some cycles by testing whether it has enough room for the cluster
upfront, otherwise we end up attempting to set up a cluster and
failing. Only in the NO_EMPTY_SIZE loop do we attempt an unclustered
allocation, and by then we'll have zeroed the cluster size, so this
patch won't stop us from using the block group as a last resort.Signed-off-by: Alexandre Oliva
Signed-off-by: Chris Mason -
Instead of starting at zero (offset is always zero), request a cluster
starting at search_start, that denotes the beginning of the current
block group.Signed-off-by: Alexandre Oliva
Signed-off-by: Chris Mason
