- 13 12月, 2012 5 次提交
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由 Lai Jiangshan 提交于
Update nodemasks management for N_MEMORY. [lliubbo@gmail.com: fix build] Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: NWen Congyang <wency@cn.fujitsu.com> Cc: Christoph Lameter <cl@linux.com> Cc: Hillf Danton <dhillf@gmail.com> Cc: Lin Feng <linfeng@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NBob Liu <lliubbo@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lai Jiangshan 提交于
N_HIGH_MEMORY stands for the nodes that has normal or high memory. N_MEMORY stands for the nodes that has any memory. The code here need to handle with the nodes which have memory, we should use N_MEMORY instead. Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Acked-by: NHillf Danton <dhillf@gmail.com> Signed-off-by: NWen Congyang <wency@cn.fujitsu.com> Cc: Christoph Lameter <cl@linux.com> Cc: Lin Feng <linfeng@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kirill A. Shutemov 提交于
By default kernel tries to use huge zero page on read page fault. It's possible to disable huge zero page by writing 0 or enable it back by writing 1: echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/use_zero_page echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/use_zero_page Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kirill A. Shutemov 提交于
hzp_alloc is incremented every time a huge zero page is successfully allocated. It includes allocations which where dropped due race with other allocation. Note, it doesn't count every map of the huge zero page, only its allocation. hzp_alloc_failed is incremented if kernel fails to allocate huge zero page and falls back to using small pages. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Kirill A. Shutemov 提交于
Pass vma instead of mm and add address parameter. In most cases we already have vma on the stack. We provides split_huge_page_pmd_mm() for few cases when we have mm, but not vma. This change is preparation to huge zero pmd splitting implementation. Signed-off-by: NKirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 12月, 2012 3 次提交
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由 Lai Jiangshan 提交于
Add online_movable and online_kernel for logic memory hotplug. This is the dynamic version of "movablecore" & "kernelcore". We have the same reason to introduce it as to introduce "movablecore" & "kernelcore". It has the same motive as "movablecore" & "kernelcore", but it is dynamic/running-time: o We can configure memory as kernelcore or movablecore after boot. Userspace workload is increased, we need more hugepage, we can't use "online_movable" to add memory and allow the system use more THP(transparent-huge-page), vice-verse when kernel workload is increase. Also help for virtualization to dynamic configure host/guest's memory, to save/(reduce waste) memory. Memory capacity on Demand o When a new node is physically online after boot, we need to use "online_movable" or "online_kernel" to configure/portion it as we expected when we logic-online it. This configuration also helps for physically-memory-migrate. o all benefit as the same as existed "movablecore" & "kernelcore". o Preparing for movable-node, which is very important for power-saving, hardware partitioning and high-available-system(hardware fault management). (Note, we don't introduce movable-node here.) Action behavior: When a memoryblock/memorysection is onlined by "online_movable", the kernel will not have directly reference to the page of the memoryblock, thus we can remove that memory any time when needed. When it is online by "online_kernel", the kernel can use it. When it is online by "online", the zone type doesn't changed. Current constraints: Only the memoryblock which is adjacent to the ZONE_MOVABLE can be online from ZONE_NORMAL to ZONE_MOVABLE. [akpm@linux-foundation.org: use min_t, cleanups] Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: NWen Congyang <wency@cn.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Liu 提交于
mem_cgroup_charge_common() is invoked as the entry point for cgroup limits charge rather than mem_cgroup_charge(), as the later has been removed for years. Update the cgroup/memory.txt to reflect this change. Signed-off-by: NJie Liu <jeff.liu@oracle.com> Cc: Ying Han <yinghan@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Lai Jiangshan 提交于
Currently memory_hotplug only manages the node_states[N_HIGH_MEMORY], it forgets to manage node_states[N_NORMAL_MEMORY]. This may cause node_states[N_NORMAL_MEMORY] to become incorrect. Example, if a node is empty before online, and we online a memory which is in ZONE_NORMAL. And after online, node_states[N_HIGH_MEMORY] is correct, but node_states[N_NORMAL_MEMORY] is incorrect, the online code doesn't set the new online node to node_states[N_NORMAL_MEMORY]. The same thing will happen when offlining (the offline code doesn't clear the node from node_states[N_NORMAL_MEMORY] when needed). Some memory managment code depends node_states[N_NORMAL_MEMORY], so we have to fix up the node_states[N_NORMAL_MEMORY]. We add node_states_check_changes_online() and node_states_check_changes_offline() to detect whether node_states[N_HIGH_MEMORY] and node_states[N_NORMAL_MEMORY] are changed while hotpluging. Also add @status_change_nid_normal to struct memory_notify, thus the memory hotplug callbacks know whether the node_states[N_NORMAL_MEMORY] are changed. (We can add a @flags and reuse @status_change_nid instead of introducing @status_change_nid_normal, but it will add much more complexity in memory hotplug callback in every subsystem. So introducing @status_change_nid_normal is better and it doesn't change the sematics of @status_change_nid) Signed-off-by: NLai Jiangshan <laijs@cn.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Rob Landley <rob@landley.net> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Mel Gorman <mgorman@suse.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 11 12月, 2012 3 次提交
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由 Kumar, Anil 提交于
Since the aemif driver conversion to DT along with its movement to drivers/ folder is not yet done, fix NAND binding documentation to have NAND specific DT details only. Signed-off-by: NKumar, Anil <anilkumar.v@ti.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Rick Jones 提交于
The description for tcp_fin_timeout should be tigher and more clear. In addition to being tighter, we should make the spelling of the state name consistent with what utilities report, remove the now dated reference to 2.2 and put the default in the consistent place. Signed-off-by: NRick Jones <rick.jones2@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Gregory CLEMENT 提交于
The support was already written, but the binding documentation was lacking. Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 10 12月, 2012 1 次提交
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由 Cristian Stoica 提交于
Signed-off-by: NCristian Stoica <cristian.stoica@freescale.com> Acked-by: NRob Landley <rob@landley.net> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 09 12月, 2012 1 次提交
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由 Namjae Jeon 提交于
There are new files added to cgroup documentation. Let's update the index file to include the new files. Signed-off-by: NNamjae Jeon <namjae.jeon@samsung.com> Signed-off-by: NAmit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: NTejun Heo <tj@kernel.org>
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- 08 12月, 2012 2 次提交
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由 Mika Westerberg 提交于
Add a document that describes how to take advantage of ACPI enumeration for buses like platform, I2C and SPI. In addition to that we document how to translate ACPI GpioIo and GpioInt resources to be useful in Linux device drivers. Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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由 Shan Wei 提交于
'secluded' is used to describe places, not suitable here. Suggested-by: NBen Hutchings <bhutchings@solarflare.com> Signed-off-by: NShan Wei <davidshan@tencent.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 12月, 2012 9 次提交
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由 Lars-Peter Clausen 提交于
This patch allows to specify that a SPI device is connected in 3-wire mode via device tree. Signed-off-by: NLars-Peter Clausen <lars@metafoo.de> Acked-by: NRob Herring <rob.herring@calxeda.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Takashi Iwai 提交于
Remove obsoleted __devinit* and __devexit* from the example codes and the descriptions, or modified the descriptions a bit to match with the current situation. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Daniel Drake 提交于
The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v capable, and it truthfully reports so in its capabilities. This alternate voltage is used for driving new "UHS-I" SD cards at their full speed. However, what the controller doesn't know is that the motherboard physically doesn't have a 1.8v supply available, so attempting to switch to the 1.8v level will result in a situation that cannot be recovered from without physically replugging the SD card. Add a device tree flag that can be used on systems like these, and hook it up to the equivalent SDHCI quirk. Signed-off-by: NDaniel Drake <dsd@laptop.org> Reviewed-by: NPhilip Rakity <prakity@nvidia.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Tomasz Figa 提交于
This patch adds support for pin configuration using pinctrl subsystem to the sdhci-s3c driver. Signed-off-by: NTomasz Figa <t.figa@samsung.com> Acked-by: NThomas Abraham <thomas.abraham@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Hebbar, Gururaja 提交于
HSMMC IP on AM33xx need a special setting to handle High-speed cards. Other platforms like TI81xx, OMAP4 may need this as-well. This depends on the HSMMC IP timing closure done for the high speed cards. From AM335x TRM (SPRUH73F - 18.3.12 Output Signals Generation): The MMC/SD/SDIO output signals can be driven on either falling edge or rising edge depending on the SD_HCTL[2] HSPE bit. This feature allows to reach better timing performance, and thus to increase data transfer frequency. There are few pre-requisites for enabling the HSPE bit - Controller should support High-Speed-Enable Bit and - Controller should not be using DDR Mode and - Controller should advertise that it supports High Speed in capabilities register and - MMC/SD clock coming out of controller > 25MHz Signed-off-by: NHebbar, Gururaja <gururaja.hebbar@ti.com> Signed-off-by: NVenkatraman S <svenkatr@ti.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Abhilash Kesavan 提交于
Add documentation for pm capabilties such as MMC_PM_KEEP_POWER and MMC_PM_WAKE_SDIO_IRQ. Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Abhilash Kesavan 提交于
Fix typo in the synopsis dwmmc controller dt binding filename. Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Tony Prisk 提交于
This patch adds support for the SD/MMC host controller found on Wondermedia 8xxx series SoCs, currently supported under arm/arch-vt8500. A binding document is also included, based on mmc.txt with additional properties. Signed-off-by: NTony Prisk <linux@prisktech.co.nz> Signed-off-by: NChris Ball <cjb@laptop.org>
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由 Loic Pallardy 提交于
Extend current sysfs access to ext_csd rpmb parameters (RPMB partition size) and rel_sector information. Signed-off-by: NLoic Pallardy <loic.pallardy@stericsson.com> Reviewed-by: NNamjae Jeon <linkinjeon@gmail.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NJohan Rudholm <johan.rudholm@stericsson.com> Acked-by: NKrishna Konda <kkonda@codeaurora.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 06 12月, 2012 10 次提交
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由 Grant Likely 提交于
Merely reorganizing documentation. No functional changes. It makes more sense for the gpio-leds binding to be grouped with other led bindings than with gpio drivers. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Mihai Caraman 提交于
Implement ONE_REG interface for EPCR register adding KVM_REG_PPC_EPCR to the list of ONE_REG PPC supported registers. Signed-off-by: NMihai Caraman <mihai.caraman@freescale.com> [agraf: remove HV dependency, use get/put_user] Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Paul Mackerras 提交于
A new ioctl, KVM_PPC_GET_HTAB_FD, returns a file descriptor. Reads on this fd return the contents of the HPT (hashed page table), writes create and/or remove entries in the HPT. There is a new capability, KVM_CAP_PPC_HTAB_FD, to indicate the presence of the ioctl. The ioctl takes an argument structure with the index of the first HPT entry to read out and a set of flags. The flags indicate whether the user is intending to read or write the HPT, and whether to return all entries or only the "bolted" entries (those with the bolted bit, 0x10, set in the first doubleword). This is intended for use in implementing qemu's savevm/loadvm and for live migration. Therefore, on reads, the first pass returns information about all HPTEs (or all bolted HPTEs). When the first pass reaches the end of the HPT, it returns from the read. Subsequent reads only return information about HPTEs that have changed since they were last read. A read that finds no changed HPTEs in the HPT following where the last read finished will return 0 bytes. The format of the data provides a simple run-length compression of the invalid entries. Each block of data starts with a header that indicates the index (position in the HPT, which is just an array), the number of valid entries starting at that index (may be zero), and the number of invalid entries following those valid entries. The valid entries, 16 bytes each, follow the header. The invalid entries are not explicitly represented. Signed-off-by: NPaul Mackerras <paulus@samba.org> [agraf: fix documentation] Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Linus Walleij 提交于
This updates the IRQdomain documentation a bit, by adding a more verbose explanation to why we need this, and by adding some extended documentation of the irq_domain_simple() usecase. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 James Hogan 提交于
The "powervr" prefix which is currently described as "Imagination Technologies" isn't really appropriate for non-PowerVR hardware, so deprecate it, changing the description of "powervr" to "PowerVR (deprecated, use img)", and add a separate "img" prefix for "Imagination Technologies Ltd.". Signed-off-by: NJames Hogan <james.hogan@imgtec.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Shan Wei 提交于
Signed-off-by: NShan Wei <davidshan@tencent.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Ashish Jangam 提交于
This is the HWMON patch for DA9055 PMIC and has got dependency on the DA9055 MFD core. This patch monitors the DA9055 PMIC's ADC channels vddout, junction temperature and auxiliary channels. This patch is functionally tested on Samsung SMDKV6410. Signed-off-by: NDavid Dajun Chen <dchen@diasemi.com> Signed-off-by: NAshish Jangam <ashish.jangam@kpitcummins.com> [Guenter Roeck: Dropped __devinit, __devexit, __devexit_p] Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Guenter Roeck 提交于
as per processor data sheets. Signed-off-by: NGuenter Roeck <linux@roeck-us.net> Acked-by: NJean Delvare <khali@linux-fr.org>
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由 Guillaume Roguez 提交于
The ADS7830 device is almost the same as the ADS7828, except that it does 8-bit sampling, instead of 12-bit. This patch extends the ads7828 driver to support this chip. Signed-off-by: NGuillaume Roguez <guillaume.roguez@savoirfairelinux.com> Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Vivien Didelot 提交于
As there is no reliable way to identify the chip, it is preferable to remove the detect callback, to avoid misdetection. Module parameters are not worth it here, so let's get rid of them and add an ads7828_platform_data structure instead. Clean the code by removing unused macros, fixing coding style issues, avoiding function prototypes and using convenient macros such as module_i2c_driver(). Signed-off-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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- 03 12月, 2012 1 次提交
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由 Hyeonjun Lim 提交于
The ./kernel/ksysfs.c defines 'profiling' w/o 'profile' like "KERNEL_ATTR_RW(profiling)". We need to synchronize the content between ksys.c source and kernel doc. Signed-off-by: NHyeonjun Lim <hjoon0510@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 02 12月, 2012 1 次提交
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由 Vipul Kumar Samar 提交于
This patch allows the STMPE GPIO driver to be successfully probed and initialised when Device Tree support is enabled. Bindings are mentioned in Documentation too. Acked-by: NLee Jones <lee.jones@linaro.org> Signed-off-by: NVipul Kumar Samar <vipulkumar.samar@st.com> Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
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- 01 12月, 2012 1 次提交
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由 Stephen Warren 提交于
All architectures that use cmd_dtc do so in almost the same way. Create a central build rule to avoid duplication. The one difference is that most current uses of dtc build $(obj)/%.dtb from $(src)/dts/%.dts rather than building the .dtb in the same directory as the .dts file. This difference will be eliminated arch-by-arch in future patches. MIPS is the exception here; it already uses the exact same rule as the new common rule, so the duplicate is removed in this patch to avoid any conflict. arch/mips changes courtesy of Ralf Baechle. Update Documentation/kbuild to remove the explicit call to cmd_dtc from the example, now that the rule exists in a centralized location. Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arm-kernel@lists.infradead.org Cc: Olof Johansson <olof@lixom.net> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Cc: Jonas Bonn <jonas@southpole.se> Cc: linux@lists.openrisc.net Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: linux-c6x-dev@linux-c6x.org Cc: Mark Salter <msalter@redhat.com> Cc: Michal Simek <monstr@monstr.eu> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org Cc: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NRob Herring <rob.herring@calxeda.com>
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- 30 11月, 2012 2 次提交
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由 Rick Jones 提交于
Make the description of how tcp_ecn works a bit more explicit and clear. Signed-off-by: NRick Jones <rick.jones2@hp.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 tekkamanninja 提交于
Fixes a term in Documentation/arm64/memory.txt The modification is based on Catalin Marinas <catalin.marinas@arm.com>'s suggestion: "memory" in "ffffffc000000000 ffffffffffffffff 256GB memory" should be treated as "kernel logical memory map". Signed-off-by: Fu Wei <tekkamanninja@gmail.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 29 11月, 2012 1 次提交
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由 Peter Ujfalusi 提交于
Handle the jack detection inforamtion as bool from devicetree. Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
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