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tegra-linux-noble/Documentation
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Luis R. Rodriguez 2f9e897353 x86/mm/mtrr, pat: Document Write Combining MTRR type effects on PAT / non-PAT pages 
As part of the effort to phase out MTRR use document
write-combining MTRR effects on pages with different non-PAT
page attributes flags and different PAT entry values. Extend
arch_phys_wc_add() documentation to clarify power of two sizes /
boundary requirements as we phase out mtrr_add() use.

Lastly hint towards ioremap_uc() for corner cases on device
drivers working with devices with mixed regions where MTRR size
requirements would otherwise not enable write-combining
effective memory types.

Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suresh Siddha <sbsiddha@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Ville Syrjälä <syrjala@sci.fi>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: linux-fbdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1430343851-967-3-git-send-email-mcgrof@do-not-panic.com
Link: http://lkml.kernel.org/r/1432628901-18044-10-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-27 14:40:59 +02:00
..
ABI
Merge tag 'platform-drivers-x86-v4.1-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
2015-04-26 13:44:46 -07:00
accounting
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
acpi
ACPI / documentation: Fix ambiguity in the GPIO properties document
2015-05-04 14:26:14 +02:00
aoe
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arm
Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
2015-04-22 09:20:15 -07:00
arm64
ARM64 / ACPI: additions of ACPI documentation for arm64
2015-03-26 15:13:09 +00:00
auxdisplay
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
backlight
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blackfin
Documentation: blackfin: Makefile: Typo building issue
2015-04-11 15:19:31 +02:00
block
Documentation: Remove mentioning of block barriers
2015-03-20 07:41:56 -06:00
blockdev
Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-block
2015-04-16 22:05:27 -04:00
bus-devices
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cdrom
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cgroups
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
cma
cma: debug: document new debugfs interface
2015-04-14 16:49:00 -07:00
connector
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console
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cpu-freq
intel_pstate: Add num_pstates to sysfs
2015-01-30 01:52:17 +01:00
cpuidle
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cris
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crypto
crypto: doc - AEAD / RNG AF_ALG interface
2015-03-09 21:06:18 +11:00
development-process
Documentation: remove outdated references to the linux-next wiki
2014-10-28 09:06:11 -04:00
device-mapper
dm crypt: update URLs to new cryptsetup project page
2015-04-15 12:10:24 -04:00
devicetree
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-05-22 15:44:50 -07:00
dmaengine
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2015-02-18 08:49:20 -08:00
DocBook
Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
2015-04-21 09:44:55 -03:00
driver-model
Merge tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2015-04-21 09:42:58 -07:00
dvb
[media] get_dvb_firmware: Update firmware of ITEtech IT9135
2014-09-21 17:03:04 -03:00
early-userspace
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EDID
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extcon
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fault-injection
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fb
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filesystems
Merge tag 'xfs-for-linus-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
2015-04-24 07:08:41 -07:00
firmware_class
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fmc
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frv
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gpio
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
hid
HID: sensor: Update document for custom sensor
2015-04-10 22:22:56 +02:00
hwmon
hwmon: (it87) Add support for IT8620E
2015-04-05 06:01:00 -07:00
i2c
i2c: slave: add documentation for i2c-slave-eeprom
2015-03-27 16:53:39 +01:00
ia64
virtual: Documentation: simplify and generalize paravirt_ops.txt
2015-02-13 17:15:44 +10:30
ide
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infiniband
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input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2015-04-21 12:54:08 -07:00
ioctl
platform/chrome: Add Chrome OS EC userspace device interface
2015-02-26 15:45:06 -08:00
isdn
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ja_JP
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kbuild
Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2015-02-19 10:31:37 -08:00
kdump
kernel: add panic_on_warn
2014-12-10 17:41:10 -08:00
ko_KR
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laptops
thinkpad_acpi: Add adaptive_kbd_mode sysfs attr
2015-03-03 09:00:08 -08:00
leds
Documentation: leds: Add description of LED Flash class extension
2015-03-09 17:18:00 -07:00
locking
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-02-11 13:03:11 -08:00
m68k
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memory-devices
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metag
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mic
Documentation: Build mic/mpssd only for x86_64
2014-12-05 11:18:36 -05:00
mips
Documentation: au1xxx-ide.c has moved
2014-08-26 09:35:53 +02:00
misc-devices
Documentation/misc-devices/mei: Fix indentation of embedded code.
2015-01-29 12:56:20 -07:00
mmc
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mn10300
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mtd
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namespaces
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netlabel
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networking
net: rfs: fix crash in get_rps_cpus()
2015-04-26 16:07:57 -04:00
nfc
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nios2
Documentation: Add documentation for Nios2 architecture
2014-12-08 12:56:06 +08:00
parisc
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PCI
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
pcmcia
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
phy
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platform
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power
Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2015-04-14 20:21:54 -07:00
powerpc
Revert "powerpc/tm: Abort syscalls in active transactions"
2015-04-30 15:24:58 +10:00
pps
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prctl
Documentation: Restrict TSC test code to x86
2014-10-28 08:46:27 -04:00
pti
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ptp
ptp: restore the makefile for building the test program.
2014-10-24 16:07:10 -04:00
rapidio
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RCU
Merge branches 'doc.2015.01.07a', 'fixes.2015.01.15a', 'preempt.2015.01.06a', 'srcu.2015.01.06a', 'stall.2015.01.16a' and 'torture.2015.01.11a' into HEAD
2015-01-15 23:34:34 -08:00
s390
s390/docs: Remove section about script debugging from Debugging390.txt
2015-01-15 11:11:14 +01:00
scheduler
docs/completion.txt: Various tweaks and corrections
2015-04-04 15:20:26 +02:00
scsi
genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely
2015-03-05 20:53:06 +01:00
security
Smack: Updates for Smack documentation
2015-03-31 10:35:31 -07:00
serial
pty: Fix input race when closing
2015-05-10 19:26:37 +02:00
sh
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sound
Merge tag 'asoc-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
2015-04-13 14:14:29 +02:00
spi
Documentation/spi/spidev_test.c: fix warning
2015-04-17 09:04:12 -04:00
sysctl
Doc/sysctl/kernel.txt: document threads-max
2015-04-17 09:04:07 -04:00
target
target: Version 2 of TCMU ABI
2015-04-19 22:40:26 -07:00
thermal
Documentation: thermal: document of_cpufreq_cooling_register()
2015-01-06 14:39:17 -04:00
timers
documentation: Update NO_HZ_FULL interaction with POSIX timers
2015-02-26 11:57:29 -08:00
tpm
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trace
coresight: Correcting documentation typographical error
2015-04-03 16:17:03 +02:00
usb
Merge tag 'usb-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
2015-03-24 22:57:49 +01:00
vDSO
vdso: don't require 64-bit math in standalone test
2014-10-25 10:53:44 -04:00
video4linux
[media] media/Documentation: New flag EXECUTE_ON_WRITE
2015-04-08 06:35:16 -03:00
virtual
KVM: MMU: fix SMAP virtualization
2015-05-11 17:17:50 +02:00
vm
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
w1
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watchdog
Documentation: use subdir-y to avoid unnecessary built-in.o files
2014-09-26 11:02:55 +02:00
wimax
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x86
x86/mm/mtrr, pat: Document Write Combining MTRR type effects on PAT / non-PAT pages
2015-05-27 14:40:59 +02:00
xtensa
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zh_CN
Documentation:Update Documentation/zh_CN/arm64/memory.txt
2015-04-04 15:20:26 +02:00
00-INDEX
Update of Documentation/dmaengine/00-INDEX
2014-12-29 15:28:24 -07:00
applying-patches.txt
Documentation: change "&" to "and" in Documentation/applying-patches.txt
2014-09-26 11:10:11 +02:00
assoc_array.txt
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atomic_ops.txt
documentation: Clarify memory-barrier semantics of atomic operations
2015-02-26 11:57:31 -08:00
bad_memory.txt
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basic_profiling.txt
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bcache.txt
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binfmt_misc.txt
binfmt_misc: touch up documentation a bit
2014-10-14 02:18:16 +02:00
braille-console.txt
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bt8xxgpio.txt
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btmrvl.txt
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BUG-HUNTING
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bus-virt-phys-mapping.txt
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cachetlb.txt
rmap: drop support of non-linear mappings
2015-02-10 14:30:31 -08:00
Changes
Documentation: GNU is frequently spelled Gnu
2014-12-29 15:33:17 -07:00
circular-buffers.txt
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clk.txt
clk: Add rate constraints to clocks
2015-02-02 14:23:42 -08:00
coccinelle.txt
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CodeOfConflict
Code of Conflict
2015-02-27 11:44:24 -08:00
CodingStyle
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
cpu-hotplug.txt
cpumask: fix cpu-hotplug documentation
2015-03-05 13:37:01 +10:30
cpu-load.txt
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cputopology.txt
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crc32.txt
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dcdbas.txt
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debugging-modules.txt
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debugging-via-ohci1394.txt
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dell_rbu.txt
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devices.txt
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digsig.txt
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DMA-API-HOWTO.txt
Documentation: correct parameter error for dma_mapping_error
2014-09-26 11:22:29 +02:00
DMA-API.txt
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DMA-attributes.txt
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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
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dontdiff
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dynamic-debug-howto.txt
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edac.txt
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efi-stub.txt
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eisa.txt
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email-clients.txt
Documentation/email-clients.txt: Fix one grammar mistake, add extra info about TB
2015-03-20 07:41:55 -06:00
flexible-arrays.txt
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futex-requeue-pi.txt
doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants
2015-01-19 12:05:32 +01:00
gcov.txt
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gdb-kernel-debugging.txt
scripts/gdb: add basic documentation
2015-02-17 14:34:54 -08:00
highuid.txt
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HOWTO
Documentation: remove outdated references to the linux-next wiki
2014-10-28 09:06:11 -04:00
hsi.txt
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hw_random.txt
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hwspinlock.txt
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init.txt
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initrd.txt
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intel_txt.txt
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Intel-IOMMU.txt
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io_ordering.txt
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io-mapping.txt
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iostats.txt
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IPMI.txt
ipmi:ssif: Ignore spaces when comparing I2C adapter names
2015-05-05 14:24:45 -05:00
IRQ-affinity.txt
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IRQ-domain.txt
IRQCHIP: Update docs regarding irq_domain_add_tree()
2015-04-01 17:21:35 +02:00
IRQ.txt
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irqflags-tracing.txt
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isapnp.txt
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java.txt
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kasan.txt
kasan: show gcc version requirements in Kconfig and Documentation
2015-05-05 17:10:10 -07:00
kernel-doc-nano-HOWTO.txt
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kernel-docs.txt
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kernel-parameters.txt
uas: Add US_FL_MAX_SECTORS_240 flag
2015-04-28 12:48:57 +02:00
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
Documentation: Add CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF case
2014-10-24 13:59:03 -04:00
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
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kselftest.txt
kselftest: Move the docs to the Documentation dir
2014-11-24 10:49:54 -07:00
ldm.txt
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local_ops.txt
percpu: update local_ops.txt to reflect this_cpu operations
2014-12-13 12:42:53 -08:00
lockup-watchdogs.txt
lockup-watchdogs: Fix a typo
2014-08-26 09:35:52 +02:00
logo.gif
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logo.txt
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lzo.txt
Documentation: lzo: document part of the encoding
2014-09-28 11:08:00 +02:00
magic-number.txt
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mailbox.txt
Documentation: Fix a typo in mailbox.txt
2014-11-03 11:54:50 -05:00
Makefile
Documentation: Remove ZBOOT MMC/SDHI utility and docs
2015-02-24 06:45:25 +09:00
ManagementStyle
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md-cluster.txt
md-cluster: Design Documentation
2015-02-23 07:16:46 -06:00
md.txt
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media-framework.txt
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memory-barriers.txt
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
memory-hotplug.txt
mem-hotplug: fix typo in Documentation/memory-hotplug.txt
2015-03-20 07:41:55 -06:00
module-signing.txt
modsign: change default key details
2015-04-30 09:35:41 -07:00
mono.txt
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nommu-mmap.txt
fs: introduce f_op->mmap_capabilities for nommu mmap support
2015-01-20 14:02:58 -07:00
numastat.txt
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oops-tracing.txt
livepatch: kernel: add TAINT_LIVEPATCH
2014-12-22 15:40:48 +01:00
padata.txt
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parport-lowlevel.txt
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parport.txt
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percpu-rw-semaphore.txt
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phy.txt
phy: improved lookup method
2014-11-21 19:48:50 +05:30
pi-futex.txt
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pinctrl.txt
pinctrl: fix example .get_group_pins implementation signature
2015-03-18 02:02:20 +01:00
pnp.txt
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preempt-locking.txt
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printk-formats.txt
Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6
2015-04-18 11:10:49 -04:00
pwm.txt
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ramoops.txt
pstore-ram: Allow optional mapping with pgprot_noncached
2014-12-11 13:38:31 -08:00
rbtree.txt
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remoteproc.txt
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rfkill.txt
rfkill: document rfkill module parameters
2015-01-09 23:22:12 +01:00
robust-futex-ABI.txt
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robust-futexes.txt
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rpmsg.txt
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rtc.txt
Documentation, split up rtc.txt into documentation and test file
2015-03-24 22:01:58 -06:00
SAK.txt
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SecurityBugs
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serial-console.txt
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sgi-ioc4.txt
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SM501.txt
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smsc_ece1099.txt
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sparse.txt
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stable_api_nonsense.txt
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stable_kernel_rules.txt
stable_kernel_rules: Add clause about specification of kernel versions to patch.
2015-03-26 23:52:24 +01:00
static-keys.txt
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SubmitChecklist
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SubmittingDrivers
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SubmittingPatches
checkpatch, SubmittingPatches: suggest line wrapping commit messages at 75 columns
2015-04-17 09:03:57 -04:00
svga.txt
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sysfs-rules.txt
Documentation/sysfs-rules.txt: Add device attribute error code documentation
2014-09-19 14:44:51 -07:00
sysrq.txt
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this_cpu_ops.txt
Docs: this_cpu_ops: remove redundant add forms
2014-09-26 11:03:00 +02:00
unaligned-memory-access.txt
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unicode.txt
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unshare.txt
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vfio.txt
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VGA-softcursor.txt
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vgaarbiter.txt
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video-output.txt
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vme_api.txt
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volatile-considered-harmful.txt
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workqueue.txt
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xillybus.txt
xillybus: Move out of staging
2014-09-23 23:44:16 -07:00
xz.txt
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zorro.txt
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