Commit Graph

4177 Commits

Author SHA1 Message Date
Russell King
0b23a0efec [ARM] omap: usb: thou shalt not provide empty release functions
... for devices.  Doing so is a bug, plain and simple, and drives
GregKH round the bend.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 17:00:45 +00:00
Russell King
409dc360b4 [ARM] clkdev: fix clock matching
The old matching algorithm was too fuzzy, causing false positives.
For example, when asked for device D connection C1 and we only find
device D connection C2, we return that as a valid match despite the
connection names being different.

Change the algorithm such that:
  An entry with a NULL ID is assumed to be a wildcard.
  If an entry has a device ID, it must match
  If an entry has a connection ID, it must match

However, we maintain the order of precidence while still only doing
a single pass over all entries: dev+con > dev only > con only.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:20 +00:00
David Brownell
d0e58ae76c [ARM] 5368/1: arch/arm/mach-davinci/usb.c buildfix
From: David Brownell <dbrownell@users.sourceforge.net>
Subject: ARM/mach-davinci/usb.c buildfix

  CC      arch/arm/mach-davinci/usb.o
arch/arm/mach-davinci/usb.c:60: error: 'IRQ_USBINT' undeclared here (not in a function)
make[1]: *** [arch/arm/mach-davinci/usb.o] Error 1

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:18 +00:00
Russell King
7dd8c4f352 [ARM] fix StrongARM-11x0 page copy implementation
Which had the 'from' and 'to' pages reversed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:17 +00:00
Tony Lindgren
1639058ed1 ARM: OMAP: Fix compile for h3 MMC
Fix compile for h3 MMC

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 15:06:59 +02:00
Tony Lindgren
e999bbe7f1 ARM: OMAP: Remove unused platform devices, v3
This patch removes old platform devices. Alsa should now
be using the ASoC driver. For boards not yet using ASoC,
please see sound/soc/omap/osk5912.c.

Add dummy aic23_power_up and aic23_power_down functions for 770
to keep things compiling.

Remove references to omap_gpio_switch, and unused h2_nand_dev_ready
function.

This patch is based on an earlier patch by Arun KS.

Cc: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Arun KS <arunks@mistralsolutions.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 14:07:48 +02:00
Tony Lindgren
3127f8f859 ARM: OMAP: Fix ASoC by enabling writes to XCCR and RCCR McBSP registers, v3
This patch enables writing to McBSP Transmit Configuration Control
Register (XCCR) and Receive Configuration Control Register (RCCR)
for 2430/34xx platforms. It also adds XCCR, RCCR entries in McBSP
register configuration structure and bit definitions for both
registers.

If we enable the writing to CCR registers for 2430/34xx and don't
set the default values (setting 0 as a consequence) in ASoC driver,
the Transmit/Receive DMA mode gets disabled and the the
transmission/reception doesn't happen, ending with a
"write error: Input/Output error" when playing with 'aplay'.

Also define dummy CCR registers for omap1.

Cc: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:54 +02:00
Arun KS
9b4a357787 ARM: OMAP: Fix OSK ASoC by registering I2C board info for tlvaic23
Adding I2C board info is required for tlvaic23 i2c chip driver.

Cc: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Arun KS <arunks@mistralsolutions.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:54 +02:00
Huang Weiyi
52628229db ARM: OMAP: remove duplicated #include's
Removed duplicated #include's in arch/arm/mach-omap1/board-voiceblue.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:54 +02:00
Anand Gadiyar
4b3cf44846 ARM: OMAP: Fix DMA CCR programming for request line > 63, v3
Bug in existing code causes synchro control to be set +32 if request
line greater than 63 is used.

Also clean up the function a bit by removing extra parens and
clearing the bits at before write.

Reported by Wenbiao Wang.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:53 +02:00
Tony Lindgren
3a26e3318b ARM: OMAP: Fix gpio.c compile on 15xx with CONFIG_DEBUGFS
There are no wakeup registers on 15xx, and suspend_wakeup
does not exist in the struct gpio_bank.

Without this fix we'll get "arch/arm/plat-omap/gpio.c:1792:
error: 'struct gpio_bank' has no member named 'suspend_wakeup'"
as noted by Russell King.

Note that the ifdefs will be cleaned up once the omap gpio
code gets split into omap1 and omap2 specific parts.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:53 +02:00
Tony Lindgren
145d9c94b9 ARM: OMAP: Fix compile for beagle
Move twl4030 gpio init code to where it should be.
Also include twl4030.h.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:53 +02:00
Jarkko Nikula
73069e388d ARM: OMAP: Fix gpio by switching to generic gpio calls, v2
Fix compile by removing remaining omap specific gpio
calls. Based on earlier patches by Jarkko Nikula.

Also remove old GPIO key code, there is already a patch
to do this with gpio_keys.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:52 +02:00
Tony Lindgren
dc0e88c7e1 ARM: OMAP: Fix compile for palmte
Remove old MMC platform init code accidentally
left behind.

Patches are welcome to the new style MMC init code.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:52 +02:00
Tony Lindgren
dd7667aa70 ARM: OMAP: Fix compile for various McBSP
Include irqs.h or cpu.h directly as needed to fix
omap builds.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-01-15 13:09:51 +02:00
Linus Torvalds
bca268565f Merge branch 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'syscalls' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (44 commits)
  [CVE-2009-0029] s390 specific system call wrappers
  [CVE-2009-0029] System call wrappers part 33
  [CVE-2009-0029] System call wrappers part 32
  [CVE-2009-0029] System call wrappers part 31
  [CVE-2009-0029] System call wrappers part 30
  [CVE-2009-0029] System call wrappers part 29
  [CVE-2009-0029] System call wrappers part 28
  [CVE-2009-0029] System call wrappers part 27
  [CVE-2009-0029] System call wrappers part 26
  [CVE-2009-0029] System call wrappers part 25
  [CVE-2009-0029] System call wrappers part 24
  [CVE-2009-0029] System call wrappers part 23
  [CVE-2009-0029] System call wrappers part 22
  [CVE-2009-0029] System call wrappers part 21
  [CVE-2009-0029] System call wrappers part 20
  [CVE-2009-0029] System call wrappers part 19
  [CVE-2009-0029] System call wrappers part 18
  [CVE-2009-0029] System call wrappers part 17
  [CVE-2009-0029] System call wrappers part 16
  [CVE-2009-0029] System call wrappers part 15
  ...
2009-01-14 19:58:40 -08:00
Harvey Harrison
74d96f0186 byteorder: make swab.h include asm/swab.h like a regular header
Add swab.h to kbuild.asm and remove the individual entries from
each arch, mark as unifdef as some arches have some kernel-only
bits inside.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-14 19:56:50 -08:00
Heiko Carstens
e55380edf6 [CVE-2009-0029] Rename old_readdir to sys_old_readdir
This way it matches the generic system call name convention.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2009-01-14 14:15:15 +01:00
Russell King
a04b9f8451 Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 2009-01-12 13:51:40 +00:00
Nicolas Pitre
98007c230e [ARM] 5364/1: allow flush_ioremap_region() to be used from modules
Without this, the pxa2xx-flash driver cannot be used as a module.

Reported-by: Chris Lawrence <chrisdl@netspace.net.au>

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-12 13:51:03 +00:00
Russell King
d672d2fc13 [ARM] w90x900: fix build errors and warnings
Fix:
arch/arm/mach-w90x900/mach-w90p910evb.c:65: error: 'W90X900_PA_UART' undeclared here (not in a function)

and silence warnings caused by inappropriate inclusion of mach/system.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-12 13:51:03 +00:00
Sascha Hauer
da17490c0d [ARM] i.MX add missing include
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-01-12 12:14:40 +01:00
Sascha Hauer
96cb767239 [ARM] i.MX: fix breakage from commit 278892736e
Fix breakage from commit 278892736e:
    i.MX Framebuffer: rename imxfb_mach_info to imx_fb_platform_data

Forgot to rename the parts in arch/arm/mach-imx/generic.c

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-01-12 12:09:59 +01:00
Sascha Hauer
68b5e4891c [ARM] i.MX: remove LCDC controller register definitions from imx-regs.h
The LCDC controller register definitions are now part of the driver
itself, so remove them from imx-regs.h to avoid redefitions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-01-12 12:07:32 +01:00
Linus Torvalds
c40f6f8bbc Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommu
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommu:
  NOMMU: Support XIP on initramfs
  NOMMU: Teach kobjsize() about VMA regions.
  FLAT: Don't attempt to expand the userspace stack to fill the space allocated
  FDPIC: Don't attempt to expand the userspace stack to fill the space allocated
  NOMMU: Improve procfs output using per-MM VMAs
  NOMMU: Make mmap allocation page trimming behaviour configurable.
  NOMMU: Make VMAs per MM as for MMU-mode linux
  NOMMU: Delete askedalloc and realalloc variables
  NOMMU: Rename ARM's struct vm_region
  NOMMU: Fix cleanup handling in ramfs_nommu_get_umapped_area()
2009-01-09 14:00:58 -08:00
Linus Torvalds
7c51d57e9d Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (67 commits)
  [MTD] [MAPS] Fix printk format warning in nettel.c
  [MTD] [NAND] add cmdline parsing (mtdparts=) support to cafe_nand
  [MTD] CFI: remove major/minor version check for command set 0x0002
  [MTD] [NAND] ndfc driver
  [MTD] [TESTS] Fix some size_t printk format warnings
  [MTD] LPDDR Makefile and KConfig
  [MTD] LPDDR extended physmap driver to support LPDDR flash
  [MTD] LPDDR added new pfow_base parameter
  [MTD] LPDDR Command set driver
  [MTD] LPDDR PFOW definition
  [MTD] LPDDR QINFO records definitions
  [MTD] LPDDR qinfo probing.
  [MTD] [NAND] pxa3xx: convert from ns to clock ticks more accurately
  [MTD] [NAND] pxa3xx: fix non-page-aligned reads
  [MTD] [NAND] fix nandsim sched.h references
  [MTD] [NAND] alauda: use USB API functions rather than constants
  [MTD] struct device - replace bus_id with dev_name(), dev_set_name()
  [MTD] fix m25p80 64-bit divisions
  [MTD] fix dataflash 64-bit divisions
  [MTD] [NAND] Set the fsl elbc ECCM according the settings in bootloader.
  ...

Fixed up trivial debug conflicts in drivers/mtd/devices/{m25p80.c,mtd_dataflash.c}
2009-01-09 12:37:15 -08:00
Russell King
97b5fe8e28 Merge branch 'devel' 2009-01-08 22:01:49 +00:00
Russell King
be680c716c Merge branch 'next-footbridge' of git://aeryn.fluff.org.uk/bjdooks/linux 2009-01-08 22:01:34 +00:00
Russell King
2927926707 [ARM] fix netx
2fcfe6b872 missed out on the cpumask
updates; update netx for these changes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:44 +00:00
Russell King
18b2085e6a [ARM] fix pnx4008
arch/arm/mach-pnx4008/include/mach/gpio.h:214: error: implicit declaration of function 'IO_ADDRESS'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:43 +00:00
Russell King
21da67a238 [ARM] fix pxa
arch/arm/mach-pxa/pxa300.c:94: error: 'CKEN_MMC3' undeclared here (not in a function)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:43 +00:00
Russell King
7c9127da74 [ARM] remove missed CLPS7500 defconfig
635f0258e5 missed removing the defconfig

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:43 +00:00
Russell King
a509a9c7a4 [ARM] clps711x: fix warning in edb7211-mm.c
Fix:
include/asm-generic/pgtable.h:305: warning: 'struct vm_area_struct' declared inside parameter list
include/asm-generic/pgtable.h:305: warning: its scope is only this definition or declaration, which is probably not what you want
include/asm-generic/pgtable.h:317: warning: 'struct vm_area_struct' declared inside parameter list
include/asm-generic/pgtable.h:331: warning: 'struct vm_area_struct' declared inside parameter list

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:42 +00:00
Russell King
a379adfb6b [ARM] clps711x: fix warning in fortunet
Fix:

arch/arm/include/asm/irq.h:26: warning: 'struct pt_regs' declared inside parameter list

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:42 +00:00
Russell King
80b02c172b [ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c
arch/arm/mach-at91/at91cap9.c:337: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-at91/at91rm9200.c:301: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-at91/at91sam9260.c:351: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-at91/at91sam9261.c:287: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-at91/at91sam9263.c:312: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-at91/at91sam9rl.c:304: error: 'NR_AIC_IRQS' undeclared here (not in a function)
arch/arm/mach-h720x/h7202-eval.c:38: error: implicit declaration of function 'IRQ_CHAINED_GPIOB'
arch/arm/mach-ks8695/devices.c:46: error: 'KS8695_IRQ_WAN_RX_STATUS' undeclared here (not in a function)
arch/arm/mach-msm/devices.c:28: error: 'INT_UART1' undeclared here (not in a function)
arch/arm/mach-mx2/devices.c:233: error: 'MXC_GPIO_IRQ_START' undeclared here (not in a function)
arch/arm/mach-mx3/devices.c:128: error: 'MXC_GPIO_IRQ_START' undeclared here (not in a function)
arch/arm/mach-omap1/mcbsp.c:140: error: 'INT_730_McBSP1RX' undeclared here (not in a function)
arch/arm/mach-omap1/mcbsp.c:165: error: 'INT_McBSP1RX' undeclared here (not in a function)
arch/arm/mach-omap1/mcbsp.c:200: error: 'INT_McBSP1RX' undeclared here (not in a function)
arch/arm/mach-omap2/board-apollon.c:286: error: implicit declaration of function 'omap_set_gpio_direction'
arch/arm/mach-omap2/mcbsp.c:154: error: 'INT_24XX_MCBSP1_IRQ_RX' undeclared here (not in a function)
arch/arm/mach-omap2/mcbsp.c:181: error: 'INT_24XX_MCBSP1_IRQ_RX' undeclared here (not in a function)
arch/arm/mach-pxa/e350.c:36: error: 'IRQ_BOARD_START' undeclared here (not in a function)
arch/arm/plat-s3c/dev-i2c0.c:32: error: 'IRQ_IIC' undeclared here (not in a function)
...

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:42 +00:00
Russell King
934848daa3 [ARM] Fix realview build
arch/arm/mach-realview/platsmp.c:140: error: 'jiffies' undeclared (first use in this function)
drivers/amba/bus.c:246: error: 'NO_IRQ' undeclared (first use in this function)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:41 +00:00
Nicolas Pitre
13731d1a2f [ARM] 5357/1: Kirkwood: add missing ge01 tclk initialization
Otherwise the mv643xx_eth driver will assume 133 MHz which is incorrect.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:41 +00:00
Ramax Lo
e2d5406e53 [ARM] 5358/1: AT2440EVB: Use new include path of mci.h
Since mci.h has been moved, use the new include path.

Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:41 +00:00
Nicolas Pitre
ba0cda6dc8 [ARM] 5361/1: mv78xx0: fix compilation error
Commit ba84be2338 broke the build.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:40 +00:00
Nicolas Pitre
ff89c462df [ARM] 5360/1: Orion: fix compilation error
Commit ba84be2338 broke the build.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:40 +00:00
Nicolas Pitre
6e5c11a1c0 [ARM] 5359/1: Kirkwood: fix compilation error
Commit ba84be2338 broke the build.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-08 16:29:40 +00:00
Matt Hsu
43a55cdffc [ARM] S3C64XX: Fix EINT group macro definition
Fix IRQ_EINT_GROUP which has an extra _ in it and
an error in the IRQ offset.

Signed-off-by: Matt Hsu <matt_hsu@openmoko.org>
[ben-linux@fluff.org: rewrite description]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 16:25:24 +00:00
Ben Dooks
43ae6599fe [ARM] S3C24XX: Add gpio_to_irq implementation
Add to_irq field handlers for the GPIO banks that are configurable
as interripts.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 16:24:08 +00:00
Ben Dooks
4d316fc5a3 [ARM] S3C24XX: Add gpio_to_irq() facility
Add gpio_to_irq() by re-directing the call to the
generic __gpio_to_irq() code in the gpiolib.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 16:24:03 +00:00
Ben Dooks
0dc6c490c0 [ARM] footbridge: dc21285.c warning fixes
The dc21285 requests a number of IRQs that it doesn't really
care whether they get added. Change to use a macro that ensures
that at-least the user gets warned if they fail to add, which
also stops the warnings from __unused_result on request_irq().

dc21285.c:337: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:339: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:341: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:343: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result
dc21285.c:345: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 15:53:08 +00:00
Ben Dooks
39ebfd3f0d [ARM] footbridge: add isa_init_irq() to common header
isa_init_irq() is defined in arch/arm/mach-footbridge/isa-irq.c
and used in arch/arm/mach-footbridge/common.c but there is no
definition in any header. Move the definition in common.c to
common.h to stop the sparse warning:

isa-irq.c:118:13: warning: symbol 'isa_init_irq' was not declared.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 15:53:08 +00:00
Ben Dooks
87e0d6cca1 [ARM] arch/arm/kernel/isa.c: missing definition of register_isa_ports
arch/arm/kernel/isa.c should include <linux/io.h> to get the
definition of register_io_ports() at-least when compiling for
footbridge to fix the following sparse warning:

isa.c:68:1: warning: symbol 'register_isa_ports' was not declared.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-01-08 15:53:08 +00:00
David Howells
8feae13110 NOMMU: Make VMAs per MM as for MMU-mode linux
Make VMAs per mm_struct as for MMU-mode linux.  This solves two problems:

 (1) In SYSV SHM where nattch for a segment does not reflect the number of
     shmat's (and forks) done.

 (2) In mmap() where the VMA's vm_mm is set to point to the parent mm by an
     exec'ing process when VM_EXECUTABLE is specified, regardless of the fact
     that a VMA might be shared and already have its vm_mm assigned to another
     process or a dead process.

A new struct (vm_region) is introduced to track a mapped region and to remember
the circumstances under which it may be shared and the vm_list_struct structure
is discarded as it's no longer required.

This patch makes the following additional changes:

 (1) Regions are now allocated with alloc_pages() rather than kmalloc() and
     with no recourse to __GFP_COMP, so the pages are not composite.  Instead,
     each page has a reference on it held by the region.  Anything else that is
     interested in such a page will have to get a reference on it to retain it.
     When the pages are released due to unmapping, each page is passed to
     put_page() and will be freed when the page usage count reaches zero.

 (2) Excess pages are trimmed after an allocation as the allocation must be
     made as a power-of-2 quantity of pages.

 (3) VMAs are added to the parent MM's R/B tree and mmap lists.  As an MM may
     end up with overlapping VMAs within the tree, the VMA struct address is
     appended to the sort key.

 (4) Non-anonymous VMAs are now added to the backing inode's prio list.

 (5) Holes may be punched in anonymous VMAs with munmap(), releasing parts of
     the backing region.  The VMA and region structs will be split if
     necessary.

 (6) sys_shmdt() only releases one attachment to a SYSV IPC shared memory
     segment instead of all the attachments at that addresss.  Multiple
     shmat()'s return the same address under NOMMU-mode instead of different
     virtual addresses as under MMU-mode.

 (7) Core dumping for ELF-FDPIC requires fewer exceptions for NOMMU-mode.

 (8) /proc/maps is now the global list of mapped regions, and may list bits
     that aren't actually mapped anywhere.

 (9) /proc/meminfo gains a line (tagged "MmapCopy") that indicates the amount
     of RAM currently allocated by mmap to hold mappable regions that can't be
     mapped directly.  These are copies of the backing device or file if not
     anonymous.

These changes make NOMMU mode more similar to MMU mode.  The downside is that
NOMMU mode requires some extra memory to track things over NOMMU without this
patch (VMAs are no longer shared, and there are now region structs).

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
2009-01-08 12:04:47 +00:00
David Howells
9c93af1ede NOMMU: Rename ARM's struct vm_region
Rename ARM's struct vm_region so that I can introduce my own global version
for NOMMU.  It's feasible that the ARM version may wish to use my global one
instead.

The NOMMU vm_region struct defines areas of the physical memory map that are
under mmap.  This may include chunks of RAM or regions of memory mapped
devices, such as flash.  It is also used to retain copies of file content so
that shareable private memory mappings of files can be made.  As such, it may
be compatible with what is described in the banner comment for ARM's vm_region
struct.

Signed-off-by: David Howells <dhowells@redhat.com>
2009-01-08 12:04:47 +00:00
Linus Torvalds
b424e8d3b4 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (98 commits)
  PCI PM: Put PM callbacks in the order of execution
  PCI PM: Run default PM callbacks for all devices using new framework
  PCI PM: Register power state of devices during initialization
  PCI PM: Call pci_fixup_device from legacy routines
  PCI PM: Rearrange code in pci-driver.c
  PCI PM: Avoid touching devices behind bridges in unknown state
  PCI PM: Move pci_has_legacy_pm_support
  PCI PM: Power-manage devices without drivers during suspend-resume
  PCI PM: Add suspend counterpart of pci_reenable_device
  PCI PM: Fix poweroff and restore callbacks
  PCI: Use msleep instead of cpu_relax during ASPM link retraining
  PCI: PCIe portdrv: Add kerneldoc comments to remining core funtions
  PCI: PCIe portdrv: Rearrange code so that related things are together
  PCI: PCIe portdrv: Fix suspend and resume of PCI Express port services
  PCI: PCIe portdrv: Add kerneldoc comments to some core functions
  x86/PCI: Do not use interrupt links for devices using MSI-X
  net: sfc: Use pci_clear_master() to disable bus mastering
  PCI: Add pci_clear_master() as opposite of pci_set_master()
  PCI hotplug: remove redundant test in cpq hotplug
  PCI: pciehp: cleanup register and field definitions
  ...
2009-01-07 15:41:01 -08:00