Arjan van de Ven e8de1481fd resource: allow MMIO exclusivity for device drivers ... Device drivers that use pci_request_regions() (and similar APIs) have a reasonable expectation that they are the only ones accessing their device. As part of the e1000e hunt, we were afraid that some userland (X or some bootsplash stuff) was mapping the MMIO region that the driver thought it had exclusively via /dev/mem or via various sysfs resource mappings. This patch adds the option for device drivers to cause their reserved regions to the "banned from /dev/mem use" list, so now both kernel memory and device-exclusive MMIO regions are banned. NOTE: This is only active when CONFIG_STRICT_DEVMEM is set. In addition to the config option, a kernel parameter iomem=relaxed is provided for the cases where developers want to diagnose, in the field, drivers issues from userspace. Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>		2009-01-07 11:12:32 -08:00
..
ABI	mm: show node to memory section relationship with symlinks in sysfs	2009-01-06 15:59:00 -08:00
accounting	.gitignore updates	2008-10-30 11:38:45 -07:00
acpi	ACPI: update debug parameter documentation	2008-11-07 21:45:29 -05:00
aoe	aoe: user can ask driver to forget previously detected devices	2008-02-08 09:22:31 -08:00
arm	Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel	2008-12-29 18:08:11 +00:00
auxdisplay	.gitignore updates	2008-10-30 11:38:45 -07:00
blackfin	Blackfin arch: add supporting for kgdb	2008-10-13 14:07:19 +08:00
block	Documentation: remove reference to ll_rw_blk.c and moved drivers/block/elevator.c	2008-12-29 08:28:43 +01:00
blockdev	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
cdrom	doc/cdrom: Trvial documentation error, file not present	2008-10-10 08:22:44 +02:00
cgroups	freezer_cg: disable writing freezer.state of root cgroup	2008-11-12 17:17:16 -08:00
connector	.gitignore updates	2008-10-30 11:38:45 -07:00
console
controllers	sched: add hierarchical accounting to cpu accounting controller	2008-11-11 12:13:28 +01:00
cpu-freq	doc: Update sh cpufreq documentation.	2008-12-22 18:44:47 +09:00
cpuidle	cpuidle: Add Documentation	2008-02-14 00:16:13 -05:00
cris	fix random typos	2008-10-16 11:21:30 -07:00
crypto	[CRYPTO] doc: Update api-intro.txt	2008-01-11 08:16:14 +11:00
development-process	Add the development process document	2008-10-16 11:51:30 -06:00
device-mapper	dm crypt: add documentation	2008-04-25 13:27:03 +01:00
DocBook	uio: make uio_info's name and version const	2009-01-06 10:44:44 -08:00
driver-model	Driver core: Update some prototypes in platform.txt	2008-02-02 15:14:49 -08:00
dvb	V4L/DVB (9812): [PATCH] short help for Technisat cards to select the right configuration	2008-12-30 09:38:35 -02:00
early-userspace	Documentation: Remove last references to BitKeeper.	2008-04-21 22:19:05 +00:00
fault-injection
fb	[ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices	2008-12-29 18:00:04 +08:00
filesystems	poll: allow f_op->poll to sleep	2009-01-06 15:59:12 -08:00
firmware_class	firmware_sample_driver.c: fix coding style	2008-04-21 22:23:30 +00:00
frv	move frv docs one level up	2008-02-03 15:54:28 +02:00
hwmon	adt7470: make automatic fan control really work	2009-01-06 15:59:18 -08:00
i2c	i2c: The i2c mailing list is moving	2008-10-30 15:55:47 +01:00
i2o
ia64	.gitignore updates	2008-10-30 11:38:45 -07:00
ide	ide: update warm-plug HOWTO	2009-01-06 17:21:00 +01:00
infiniband
input	Merge commit 'v2.6.28-rc9' into next	2008-12-20 04:54:54 -05:00
ioctl	documentation: update header file paths	2009-01-06 15:59:28 -08:00
isdn	Rationalise Randy's address a bit	2008-10-30 11:38:47 -07:00
ja_JP	HOWTO: Sync patch for jp_JP/HOWTO	2008-10-29 15:03:50 -07:00
kbuild	kbuild: document environment variables	2009-01-02 20:43:25 +01:00
kdump	powerpc: Support for relocatable kdump kernel	2008-10-22 15:01:22 +11:00
ko_KR	HOWTO: update misspelling and word incorrected	2007-12-17 10:33:19 -08:00
laptops	Merge branch 'linus' into test	2008-10-23 00:11:07 -04:00
lguest	lguest: move the initial guest page table creation code to the host	2008-12-30 09:26:11 +10:30
m68k	[SCSI] 53c7xx: fix removal fallout	2008-01-11 18:22:30 -06:00
make
mips	documentation: update header file paths	2009-01-06 15:59:28 -08:00
mn10300	mn10300: add the MN10300/AM33 architecture to the kernel	2008-02-08 09:22:30 -08:00
mtd	[MTD] [NAND] nand_ecc.c: rewrite for improved performance	2008-08-16 10:55:33 +01:00
namespaces	The namespaces compatibility list doc	2007-11-29 09:24:53 -08:00
netlabel
networking	dccp ccid-2: Phase out the use of boolean Ack Vector sysctl	2008-12-08 01:19:06 -08:00
parisc
PCI	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
pcmcia	.gitignore updates	2008-10-30 11:38:45 -07:00
power	pm: document use of RTC in pm_trace	2008-10-16 11:21:29 -07:00
powerpc	documentation: update header file paths	2009-01-06 15:59:28 -08:00
prctl	generic, x86: add tests for prctl PR_GET_TSC and PR_SET_TSC	2008-04-19 19:19:55 +02:00
RCU	Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-12-30 16:10:19 -08:00
s390	documentation: update s390 header file paths	2009-01-06 15:59:28 -08:00
scheduler	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-12-28 12:27:58 -08:00
scsi	[SCSI] cxgb3i: Add cxgb3i iSCSI driver.	2008-12-30 10:45:33 -06:00
serial	Create/use more directory structure in the Documentation/ tree.	2008-11-14 17:28:53 +00:00
sh	sh: Kill off remaining CONFIG_SH_KGDB bits.	2008-12-22 18:44:05 +09:00
sound	Merge branch 'topic/oxygen' into to-push	2008-12-25 11:40:30 +01:00
sparc	sparc: Remove Documentation/sparc/sbus_drivers.txt	2008-08-29 02:15:25 -07:00
spi	spi documentation: use __initdata on struct	2008-12-01 19:55:24 -08:00
sysctl	mm: add dirty_background_bytes and dirty_bytes sysctls	2009-01-06 15:59:03 -08:00
telephony	remove mention of CONFIG_KMOD from documentation	2008-07-22 19:24:29 +10:00
thermal	thermal: update the documentation	2008-04-29 02:49:47 -04:00
timers	hpet: /dev/hpet - fixes and cleanup	2008-07-31 18:45:41 +02:00
tracers	tracing, doc: update mmiotrace documentation	2008-11-23 20:33:24 +01:00
uml
usb	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream	2009-01-02 13:17:13 +00:00
video4linux	V4L/DVB (10157): Add USB ID for the Sil4701 radio from DealExtreme	2009-01-02 17:13:56 -02:00
vm	mm: remove try_to_munlock from vmscan	2009-01-06 15:59:03 -08:00
w1	hdq: documentation for OMAP HDQ	2008-11-12 17:17:18 -08:00
watchdog	.gitignore updates	2008-10-30 11:38:45 -07:00
x86	documentation: update header file paths	2009-01-06 15:59:28 -08:00
zh_CN	Chinese: add translation of Codingstyle	2008-01-24 20:40:04 -08:00
00-INDEX	Merge branch 'doc-subdirs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs	2008-11-15 11:51:03 -08:00
applying-patches.txt
atomic_ops.txt	documentation: atomic_add_unless() doesn't imply mb() on failure	2008-02-23 17:52:36 -08:00
basic_profiling.txt
binfmt_misc.txt
braille-console.txt	Basic braille screen reader support	2008-04-30 08:29:52 -07:00
bt8xxgpio.txt	gpio: add bt8xxgpio driver	2008-07-25 10:53:30 -07:00
BUG-HUNTING	Documentation: add hint about call traces & module symbols to BUG-HUNTING	2008-02-06 10:41:09 -08:00
c2port.txt	Add c2 port support	2008-11-12 17:17:18 -08:00
cachetlb.txt	remove unused flush_tlb_pgtables	2007-10-19 11:53:34 -07:00
Changes
CodingStyle	documentation: update CodingStyle tips for Emacs users	2008-07-25 10:53:29 -07:00
cpu-hotplug.txt	x86: use possible_cpus=NUM to extend the possible cpus allowed	2008-12-18 12:08:05 +01:00
cpu-load.txt
cpusets.txt	container freezer: document the cgroup freezer subsystem.	2008-10-20 08:52:34 -07:00
cputopology.txt	sysfs: add documentation to cputopology.txt for system cpumasks	2008-12-19 17:47:12 +10:30
credentials.txt	CRED: Documentation	2008-11-14 10:39:26 +11:00
dcdbas.txt
debugging-modules.txt	Documentation: Clarify when module debugging actually works.	2008-02-03 15:27:38 +02:00
debugging-via-ohci1394.txt	firewire: fw-ohci: add option for remote debugging	2008-04-18 17:55:33 +02:00
dell_rbu.txt
devices.txt	USB: add USB test and measurement class driver	2008-10-17 14:40:51 -07:00
DMA-API.txt	DMA-API.txt: fix description of pci_map_sg/dma_map_sg scatterlists handling	2008-12-01 19:55:24 -08:00
DMA-attributes.txt	powerpc/cell: Add DMA_ATTR_WEAK_ORDERING dma attribute and use in Cell IOMMU code	2008-07-22 10:39:36 +10:00
DMA-ISA-LPC.txt
DMA-mapping.txt	documentation: update header file paths	2009-01-06 15:59:28 -08:00
dontdiff	dontdiff: more updates to be closer to gitignore	2008-10-16 11:21:31 -07:00
edac.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
eisa.txt
email-clients.txt	Documentation/email-clients.txt: add some info about gmail	2008-11-06 15:41:19 -08:00
exception.txt
feature-removal-schedule.txt	Merge branch 'next' into for-linus	2009-01-07 09:58:22 +11:00
ftrace.txt	ftrace: improve documentation	2008-11-28 13:15:14 +01:00
gpio.txt	gpiolib: request/free hooks	2008-10-16 11:21:40 -07:00
highuid.txt	[SPARC]: Remove SunOS and Solaris binary support.	2008-04-21 15:10:15 -07:00
HOWTO	Remove Andrew Morton's http://www.zip.com.au/~akpm/	2008-10-16 11:21:32 -07:00
hw_random.txt	hw_random doc updates	2008-03-24 19:22:19 -07:00
ics932s401	ics932s401: new clock generator chip driver	2008-11-12 17:17:18 -08:00
initrd.txt	use the newc archive format as requested by initramfs	2008-02-03 14:54:41 +02:00
Intel-IOMMU.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
io-mapping.txt	io mapping: improve documentation	2008-11-03 18:21:44 +01:00
IO-mapping.txt
io_ordering.txt
iostats.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
IPMI.txt
IRQ-affinity.txt	genirq: Expose default irq affinity mask (take 3)	2008-06-05 15:18:30 +02:00
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt	Documentation/java.txt: typo and grammar fixes	2007-10-20 02:37:21 +02:00
kernel-doc-nano-HOWTO.txt	documentation: how to use DOC: section blocks	2009-01-06 15:59:28 -08:00
kernel-docs.txt	doc: update to URL and status of kernel-docs.txt entry	2008-06-06 11:29:10 -07:00
kernel-parameters.txt	resource: allow MMIO exclusivity for device drivers	2009-01-07 11:12:32 -08:00
keys-request-key.txt	keys: allow the callout data to be passed as a blob rather than a string	2008-04-29 08:06:16 -07:00
keys.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
kobject.txt	kobject: Make Documentation/kobject.txt a little more coherent.	2009-01-06 10:44:32 -08:00
kprobes.txt	kprobes: support probing module __exit function	2009-01-06 15:59:21 -08:00
kref.txt	docs: convert kref semaphore to mutex	2008-02-06 10:41:09 -08:00
ldm.txt
leds-class.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
local_ops.txt	documentation: local_ops fix on_each_cpu	2008-12-01 13:51:26 +01:00
lockdep-design.txt
lockstat.txt	lockstat: contend with points	2008-10-20 15:43:10 +02:00
logo.gif
logo.txt
magic-number.txt	documentation: update header file paths	2009-01-06 15:59:28 -08:00
Makefile	docsrc: build Documentation/ sources	2008-08-12 16:07:30 -07:00
ManagementStyle	docs: fix ManagementStyle book name	2008-10-30 11:38:46 -07:00
markers.txt	markers: comment marker_synchronize_unregister() on data dependency	2008-11-28 16:47:41 +01:00
mca.txt	The ps2esdi driver was marked as BROKEN more than two years ago due to being	2008-03-17 09:03:05 +01:00
md.txt	md: Tidy up rdev_size_store a bit:	2008-07-21 14:22:18 +10:00
memory-barriers.txt	read_barrier_depends arch fixlets	2008-05-14 10:05:18 -07:00
memory-hotplug.txt	mm: show node to memory section relationship with symlinks in sysfs	2009-01-06 15:59:00 -08:00
memory.txt
mono.txt
mutex-design.txt	Documentation: Add nested versions of mutex locks to docs	2007-10-20 00:15:26 +02:00
nmi_watchdog.txt	x86, nmi-watchdog: update procfs nmi_watchdog file documentation v2	2008-10-30 19:07:04 +01:00
nommu-mmap.txt
numastat.txt
oops-tracing.txt	Taint kernel after WARN_ON(condition)	2008-04-29 08:05:59 -07:00
parport-lowlevel.txt	plip: fix parport_register_device name parameter	2007-11-26 19:39:01 -08:00
parport.txt
pi-futex.txt
pnp.txt	Documentation: Replace obsolete "driverfs" with "sysfs".	2008-01-24 20:40:04 -08:00
preempt-locking.txt
printk-formats.txt	DOC: add printk-formats.txt	2008-11-12 17:17:17 -08:00
prio_tree.txt
rbtree.txt
rfkill.txt	rfkill: add master_switch_mode and EPO lock to rfkill and rfkill-input	2008-10-31 19:00:09 -04:00
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt	rtc: cleanup example code	2008-02-06 10:41:14 -08:00
SAK.txt	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
SecurityBugs
SELinux.txt	selinux: add support for installing a dummy policy (v2)	2008-08-27 08:54:08 +10:00
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
Smack.txt	Smack: Simplified Mandatory Access Control Kernel	2008-02-05 09:44:20 -08:00
sparse.txt	kbuild: sparse needs CF not CHECKFLAGS	2008-07-25 22:12:39 +02:00
spinlocks.txt	Add additional examples in Documentation/spinlocks.txt	2008-04-11 13:21:14 -06:00
stable_api_nonsense.txt
stable_kernel_rules.txt	Update stable tree documentation	2008-10-29 15:03:49 -07:00
SubmitChecklist	documentation: explain memory barriers	2008-10-16 11:21:32 -07:00
SubmittingDrivers	Remove Andrew Morton's old email accounts	2008-10-16 11:21:32 -07:00
SubmittingPatches	Merge branch 'docs' of git://git.lwn.net/linux-2.6	2008-10-16 12:18:16 -07:00
svga.txt
sysfs-rules.txt	sysfs-rules.txt: reword API stability statement	2008-07-21 21:54:59 -07:00
sysrq.txt	Merge branch 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2008-10-20 13:19:56 -07:00
tracepoints.txt	tracepoints: Documentation TPPROTO misspelt in Documentation/tracepoints.txt	2008-11-29 15:13:42 +01:00
unaligned-memory-access.txt	introduce HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig symbol	2008-07-25 10:53:27 -07:00
unicode.txt
unshare.txt
VGA-softcursor.txt
video-output.txt
volatile-considered-harmful.txt	Documentation cleanup: trivial misspelling, punctuation, and grammar corrections.	2008-07-26 12:00:06 -07:00
voyager.txt
zorro.txt