Douglas Anderson 6665fa88b5 FROMLIST: common: DMA-mapping: add DMA_ATTR_ALLOC_SINGLE_PAGES attribute ... This patch adds the DMA_ATTR_ALLOC_SINGLE_PAGES attribute to the DMA-mapping subsystem. This attribute can be used as a hint to the DMA-mapping subsystem that it's likely not worth it to try to allocate large pages behind the scenes. Large pages are likely to make an IOMMU TLB work more efficiently but may not be worth it. See the Documentation contained in this patch for more details about this attribute and when to use it. Note that the name of the hint (DMA_ATTR_ALLOC_SINGLE_PAGES) is loosely based on the name MADV_NOHUGEPAGE. Just as there is MADV_NOHUGEPAGE vs. MADV_HUGEPAGE we could also add an "opposite" attribute to DMA_ATTR_ALLOC_SINGLE_PAGES. Without having the "opposite" attribute the lack of DMA_ATTR_ALLOC_SINGLE_PAGES means "use your best judgement about whether to use small pages or large pages". BUG=chromium:570532 TEST=Stress memory and watch cat videos. Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> (am from https://patchwork.kernel.org/patch/8007151/) Reviewed-on: https://chromium-review.googlesource.com/322334 Reviewed-by: Dmitry Torokhov <dtor@chromium.org> Change-Id: I9d0af41446b5c41d6f39a2b77e711179d0b40eca Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Yakir Yang <ykk@rock-chips.com>		2016-06-30 19:58:20 +08:00
..
ABI	This is the 4.4.2 stable release	2016-02-18 16:03:29 +08:00
accounting
acpi	mfd: core: redo ACPI matching of the children devices	2015-10-26 15:25:53 +01:00
aoe
arm	ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs	2015-11-23 10:36:27 -08:00
arm64	arm64: allow kernel Image to be loaded anywhere in physical memory	2016-05-11 22:52:47 +08:00
auxdisplay
backlight
blackfin	Docs: blackfin: Use new switch macro SAMPLE_IRQ_TIMER instead of IRQ_TIMER5	2015-05-07 09:35:14 -06:00
block	ANDROID: mmc: Add CONFIG_MMC_SIMULATE_MAX_SPEED	2016-04-07 16:50:08 +05:30
blockdev	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
bus-devices
cdrom
cgroups	cgroup: Add generic cgroup subsystem permission checks	2016-02-16 13:53:43 -08:00
cma	cma: debug: document new debugfs interface	2015-04-14 16:49:00 -07:00
connector
console
cpu-freq	cpufreq: interactive: allow arbitrary speed / delay mappings	2016-02-16 13:52:53 -08:00
cpuidle
cris
crypto	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
development-process	Documentation: remove outdated references to the linux-next wiki	2014-10-28 09:06:11 -04:00
device-mapper	UPSTREAM: dm verity: add ignore_zero_blocks feature	2016-04-07 16:50:06 +05:30
devicetree	dt-bindings: Add support for AUO B101EW05 1280x800 panel	2016-06-30 14:35:49 +08:00
dmaengine	UPSTREAM: dmaengine: Add transfer termination synchronization support	2016-06-16 20:45:35 +08:00
DocBook	UPSTREAM: v4l: add V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME.	2016-06-30 19:57:59 +08:00
driver-model	driver-core: platform: Provide helpers for multi-driver modules	2015-10-05 05:02:40 +01:00
dvb
early-userspace
EDID
extcon
fault-injection	futex: Fault/error injection capabilities	2015-07-20 11:45:45 +02:00
fb	Documentation/fb: add documentation for sm712fb	2015-08-07 15:05:01 -07:00
features	arm64: add support for ioremap() block mappings	2016-05-11 22:19:26 +08:00
filesystems	Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android	2016-03-14 15:32:21 +08:00
firmware_class
fmc
fpga	usage documentation for FPGA manager core	2015-10-07 18:07:20 +01:00
frv
gpio	There is a nice new document from Neil on how pathname lookups work and	2015-11-05 15:59:24 -08:00
hid	HID: sensor: Update document for custom sensor	2015-04-10 22:22:56 +02:00
hwmon	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
i2c	i2c: i801: add Intel Lewisburg device IDs	2015-11-20 16:22:21 +01:00
ia64	virtual: Documentation: simplify and generalize paravirt_ops.txt	2015-02-13 17:15:44 +10:30
ide
infiniband	IB/hfi1: add driver files	2015-08-28 22:59:36 -04:00
input	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
ioctl	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
isdn
ja_JP	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
kbuild	kbuild: document recursive dependency limitation / resolution	2015-10-08 15:36:16 +02:00
kdump	kernel: add panic_on_warn	2014-12-10 17:41:10 -08:00
ko_KR
laptops	Move freefall program from Documentation/ to tools/	2015-06-08 16:42:07 -06:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
locking	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-11-03 16:10:43 -08:00
m68k
memory-devices
metag
mic	misc: mic: Update MIC host daemon with COSM changes	2015-10-04 12:54:54 +01:00
mips
misc-devices	Doc:misc-devices: Fix typo in Documentation/misc-devices	2015-09-18 10:04:24 -06:00
mmc	mmc: core: Remove MMC_CLKGATE	2015-10-26 16:00:09 +01:00
mn10300
mtd
namespaces
netlabel
networking	net: support marking accepting TCP sockets	2016-02-16 13:51:43 -08:00
nfc	NFC: Fix typo in nfc-hci.txt	2015-06-08 23:15:45 +02:00
nios2	Documentation: Add documentation for Nios2 architecture	2014-12-08 12:56:06 +08:00
nvdimm	libnvdimm: documentation clarifications	2015-11-12 09:55:23 -08:00
nvmem	Documentation: nvmem: add nvmem api level and how-to doc	2015-08-05 13:43:45 -07:00
parisc	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
PCI	The documentation tree update for 4.1. Numerous fixes, the overdue removal	2015-04-18 11:10:49 -04:00
pcmcia	pcmcia: Fix typo in locking documentation	2015-08-07 14:34:58 +02:00
phy
platform
power	rk: temp revert rk change	2015-11-11 15:54:30 +08:00
powerpc	SCSI misc on 20150901	2015-09-02 12:22:54 -07:00
pps	Doc: pps: Fix file name in pps.txt	2015-07-14 12:35:42 -06:00
prctl	Documentation/prctl: don't build tsc tests when cross compiling	2015-06-22 16:05:04 -06:00
pti
ptp	testptp: Silence compiler warnings on ppc64	2015-09-29 21:16:56 -07:00
rapidio
RCU	Merge branches 'doc.2015.10.06a', 'percpu-rwsem.2015.10.06a' and 'torture.2015.10.06a' into HEAD	2015-10-07 16:06:25 -07:00
s390	KVM: s390: remove outdated documentation	2015-07-29 11:02:35 +02:00
scheduler	sched/tune: add detailed documentation	2016-03-21 14:57:32 +00:00
scsi	st: allow debug output to be enabled or disabled via sysfs	2015-11-09 17:17:27 -08:00
security	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
serial	Documentation: improve line discipline method descriptions	2015-10-05 04:53:26 +01:00
sh
sound	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
spi	ARM: pxa: Remove unused clock_enable field from struct pxa2xx_spi_master	2015-09-20 19:37:20 +02:00
sysctl	FROMLIST: mm: mmap: Add new /proc tunable for mmap_base ASLR.	2016-02-16 13:54:14 -08:00
target	target: use per-attribute show and store methods	2015-10-13 22:17:49 -07:00
thermal	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
timers	documentation: Update NO_HZ_FULL interaction with POSIX timers	2015-02-26 11:57:29 -08:00
tpm
trace	trace: cpufreq: Add tracing for min/max cpufreq	2016-02-16 13:53:30 -08:00
usb	usb: core: lpm: fix usb3_hardware_lpm sysfs node	2016-01-31 11:28:58 -08:00
vDSO	Documentation/vDSO: don't build tests when cross compiling	2015-06-22 16:04:57 -06:00
video4linux	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
virtual	KVM: MMU: fix ept=0/pte.u=1/pte.w=0/CR0.WP=0/CR4.SMEP=1/EFER.NX=0 combo	2016-03-16 08:42:58 -07:00
vm	mm: make compound_head() robust	2015-11-06 17:50:42 -08:00
w1	w1: masters: omap_hdq: add support for 1-wire mode	2015-10-05 04:47:09 +01:00
watchdog	Documentation/watchdog: add timeout and ping rate control to watchdog-test.c	2015-09-09 21:33:36 +02:00
wimax
x86	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
xtensa
zh_CN	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
00-INDEX	Update of Documentation/dmaengine/00-INDEX	2014-12-29 15:28:24 -07:00
adding-syscalls.txt	Documentation: describe how to add a system call	2015-08-13 17:54:06 -06:00
android.txt	pstore: Update Documentation/android.txt	2016-02-16 13:54:10 -08:00
applying-patches.txt
assoc_array.txt
atomic_ops.txt	locking/atomics, cmpxchg: Privatize the inclusion of asm/cmpxchg.h	2015-09-13 10:35:46 +02:00
bad_memory.txt
basic_profiling.txt
bcache.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt	rmap: drop support of non-linear mappings	2015-02-10 14:30:31 -08:00
Changes	There is a nice new document from Neil on how pathname lookups work and	2015-11-05 15:59:24 -08:00
circular-buffers.txt
clk.txt	rk: temp revert rk change	2015-11-11 15:54:30 +08:00
coccinelle.txt
CodeOfConflict	Code of Conflict	2015-02-27 11:44:24 -08:00
CodingStyle	Documentation: CodingStyle: remove broken links in the References section	2015-07-10 13:54:34 -06:00
cpu-hotplug.txt	cpumask: fix cpu-hotplug documentation	2015-03-05 13:37:01 +10:30
cpu-load.txt
cputopology.txt	Documentation: Update cputopology.txt	2015-05-27 15:22:15 +02:00
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
dell_rbu.txt
devices.txt
digsig.txt
DMA-API-HOWTO.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
DMA-API.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
DMA-attributes.txt	FROMLIST: common: DMA-mapping: add DMA_ATTR_ALLOC_SINGLE_PAGES attribute	2016-06-30 19:58:20 +08:00
dma-buf-sharing.txt	dma-buf: cleanup dma_buf_export() to make it easily extensible	2015-04-21 14:47:16 +05:30
DMA-ISA-LPC.txt
dontdiff	Documentation: dontdiff: remove media from dontdiff	2015-11-11 10:08:07 -07:00
dynamic-debug-howto.txt
edac.txt	Documentation/EDAC: Add reference documents section for amd64_edac	2015-09-29 13:42:41 +02:00
efi-stub.txt
eisa.txt
email-clients.txt	A few more documentation patches that wandered in and have no reason to	2015-11-13 09:19:05 -08:00
flexible-arrays.txt
futex-requeue-pi.txt	doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants	2015-01-19 12:05:32 +01:00
gcov.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
gdb-kernel-debugging.txt	scripts/gdb: add basic documentation	2015-02-17 14:34:54 -08:00
highuid.txt
HOWTO	docs: update HOWTO for 3.x -> 4.x versioning	2015-08-24 11:28:17 -06:00
hsi.txt
hw_random.txt	hwrng: doc - Fix device node name reference /dev/hw_random => /dev/hwrng	2015-09-21 22:00:41 +08:00
hwspinlock.txt	hwspinlock/core: add device tree support	2015-05-02 09:54:30 +03:00
init.txt
initrd.txt
intel_txt.txt
Intel-IOMMU.txt	x86/vt-d: Fix documentation of DRHD	2015-08-25 10:44:49 +02:00
io_ordering.txt
io-mapping.txt
iostats.txt
IPMI.txt	ipmi watchdog : add panic_wdt_timeout parameter	2015-11-16 06:28:43 -06:00
IRQ-affinity.txt
IRQ-domain.txt	irqdomain: Documentation updates	2015-10-13 19:01:25 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kasan.txt	mm, slub, kasan: enable user tracking by default with KASAN=y	2015-11-05 19:34:48 -08:00
kernel-doc-nano-HOWTO.txt	Documenation: Update location of docproc.c	2015-07-14 12:36:39 -06:00
kernel-docs.txt	kernel-docs.txt: update kernelnewbies reference	2015-10-11 15:36:43 -06:00
kernel-parameters.txt	Merge tag 'v4.4.8' into linux-linaro-lsk-v4.4	2016-04-21 12:06:25 +08:00
kernel-per-CPU-kthreads.txt	documentation: Update per-CPU kthreads documentation	2015-02-26 11:57:30 -08:00
kmemcheck.txt	Documentation: update the CONFIG_DEBUG_PAGEALLOC description	2015-03-20 07:41:55 -06:00
kmemleak.txt	Doc: Change wikipedia's URL from http to https	2015-06-22 10:14:05 -06:00
kobject.txt	kobject: grammar fix	2014-12-08 09:07:11 -05:00
kprobes.txt	kprobes: Update Documentation/kprobes.txt	2015-03-20 07:41:55 -06:00
kref.txt
kselftest.txt	Documentation: Update kselftest.txt	2015-09-24 15:51:53 -06:00
ldm.txt
local_ops.txt	percpu: update local_ops.txt to reflect this_cpu operations	2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt	kernel/watchdog.c: add sysctl knob hardlockup_panic	2015-11-05 19:34:48 -08:00
logo.gif
logo.txt
lzo.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
magic-number.txt	Documentation/magic-number: Remove SCC_MAGIC	2015-05-13 15:39:04 -04:00
mailbox.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
Makefile	Documentation: Remove ZBOOT MMC/SDHI utility and docs	2015-02-24 06:45:25 +09:00
ManagementStyle
md-cluster.txt	md-cluster: fix deadlock issue on message lock	2015-08-31 19:41:41 +02:00
md.txt	doc:md: fix typo in md.txt.	2015-06-23 06:49:44 -06:00
media-framework.txt
memory-barriers.txt	atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl()	2015-11-03 17:22:17 -08:00
memory-hotplug.txt	mem-hotplug: fix typo in Documentation/memory-hotplug.txt	2015-03-20 07:41:55 -06:00
men-chameleon-bus.txt	Documentation: Minor changes to men-chameleon-bus.txt	2015-07-24 15:15:17 +02:00
module-signing.txt	Move certificate handling to its own directory	2015-08-14 16:06:13 +01:00
mono.txt
nommu-mmap.txt	fs: introduce f_op->mmap_capabilities for nommu mmap support	2015-01-20 14:02:58 -07:00
ntb.txt	NTB: Rename Intel code names to platform names	2015-07-04 14:09:25 -04:00
numastat.txt
oops-tracing.txt	livepatch: kernel: add TAINT_LIVEPATCH	2014-12-22 15:40:48 +01:00
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
phy.txt	phy: core: Add devm_of_phy_get_by_index to phy-core	2015-05-11 21:42:23 +05:30
pi-futex.txt
pie.txt
pinctrl.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
pnp.txt
preempt-locking.txt	x86/fpu: Rename math_state_restore() to fpu__restore()	2015-05-19 15:47:18 +02:00
printk-formats.txt	lib/vsprintf.c: update documentation	2015-11-06 17:50:42 -08:00
pwm.txt
ramoops.txt	FROMLIST: pstore-ram: add Device Tree bindings	2016-02-16 13:54:11 -08:00
rbtree.txt	documentation: fix small typo in rbtree.txt	2015-09-13 14:38:50 -06:00
remoteproc.txt	remoteproc: introduce rproc_get_by_phandle API	2015-06-16 21:12:52 +03:00
rfkill.txt	rfkill: document rfkill module parameters	2015-01-09 23:22:12 +01:00
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt	Documentation, split up rtc.txt into documentation and test file	2015-03-24 22:01:58 -06:00
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
stable_api_nonsense.txt
stable_kernel_rules.txt	rk: revert to v3.10	2015-11-11 15:57:28 +08:00
static-keys.txt	locking/static_keys: Fix up the static keys documentation	2015-09-15 07:12:06 +02:00
SubmitChecklist
SubmittingDrivers
SubmittingPatches	A few more documentation patches that wandered in and have no reason to	2015-11-13 09:19:05 -08:00
svga.txt
sync.txt	sync: add Documentation/sync.txt	2016-02-16 13:53:25 -08:00
sysfs-rules.txt
sysrq.txt	mm, oom: do not panic for oom kills triggered from sysrq	2015-09-08 15:35:28 -07:00
this_cpu_ops.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt	vfio: powerpc/spapr: Support Dynamic DMA windows	2015-06-11 15:16:55 +10:00
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt	Documentation: mention vme_master_mmap() in VME API	2015-06-12 17:26:56 -07:00
volatile-considered-harmful.txt
workqueue.txt	workqueue: fix trivial typo in Documentation/workqueue.txt	2015-05-05 09:50:38 -04:00
xillybus.txt
xz.txt
zorro.txt