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Merge tag 'v3.3' into staging/for_v3.4 

* tag 'v3.3': (1646 commits)
  Linux 3.3
  Don't limit non-nested epoll paths
  netfilter: ctnetlink: fix race between delete and timeout expiration
  ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.
  nilfs2: fix NULL pointer dereference in nilfs_load_super_block()
  nilfs2: clamp ns_r_segments_percentage to [1, 99]
  afs: Remote abort can cause BUG in rxrpc code
  afs: Read of file returns EBADMSG
  C6X: remove dead code from entry.S
  wimax/i2400m: fix erroneous NETDEV_TX_BUSY use
  net/hyperv: fix erroneous NETDEV_TX_BUSY use
  net/usbnet: reserve headroom on rx skbs
  bnx2x: fix memory leak in bnx2x_init_firmware()
  bnx2x: fix a crash on corrupt firmware file
  sch_sfq: revert dont put new flow at the end of flows
  ipv6: fix icmp6_dst_alloc()
  MAINTAINERS: Add Serge as maintainer of capabilities
  drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode
  MAINTAINERS: add entry for exynos mipi display drivers
  MAINTAINERS: fix link to Gustavo Padovans tree
  ...
This commit is contained in:
Mauro Carvalho Chehab 2012-03-19 13:41:24 -03:00
parent f074ff92b5 c16fa4f2ad
commit 9ce28d827f
1756 changed files with 17022 additions and 58587 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Documentation/DocBook/device-drivers.tmpl
View File

@ -50,7 +50,9 @@
<sect1><title>Delaying, scheduling, and timer routines</title>
!Iinclude/linux/sched.h
!Ekernel/sched.c
!Ekernel/sched/core.c
!Ikernel/sched/cpupri.c
!Ikernel/sched/fair.c
!Iinclude/linux/completion.h
!Ekernel/timer.c
</sect1>
@ -100,9 +102,12 @@ X!Iinclude/linux/kobject.h
!Iinclude/linux/device.h
</sect1>
<sect1><title>Device Drivers Base</title>
!Idrivers/base/init.c
!Edrivers/base/driver.c
!Edrivers/base/core.c
!Edrivers/base/syscore.c
!Edrivers/base/class.c
!Idrivers/base/node.c
!Edrivers/base/firmware_class.c
!Edrivers/base/transport_class.c
<!-- Cannot be included, because
@ -111,13 +116,18 @@ X!Iinclude/linux/kobject.h
exceed allowed 44 characters maximum
X!Edrivers/base/attribute_container.c
-->
!Edrivers/base/sys.c
!Edrivers/base/dd.c
<!--
X!Edrivers/base/interface.c
-->
!Iinclude/linux/platform_device.h
!Edrivers/base/platform.c
!Edrivers/base/bus.c
</sect1>
<sect1><title>Device Drivers DMA Management</title>
!Edrivers/base/dma-buf.c
!Edrivers/base/dma-coherent.c
!Edrivers/base/dma-mapping.c
</sect1>
<sect1><title>Device Drivers Power Management</title>
!Edrivers/base/power/main.c
@ -216,9 +226,8 @@ X!Isound/sound_firmware.c
<chapter id="uart16x50">
<title>16x50 UART Driver</title>
!Iinclude/linux/serial_core.h
!Edrivers/tty/serial/serial_core.c
!Edrivers/tty/serial/8250.c
!Edrivers/tty/serial/8250/8250.c
</chapter>
<chapter id="fbdev">

2
Documentation/DocBook/deviceiobook.tmpl
View File

@ -317,7 +317,7 @@ CPU B: spin_unlock_irqrestore(&amp;dev_lock, flags)
<chapter id="pubfunctions">
<title>Public Functions Provided</title>
!Iarch/x86/include/asm/io.h
!Elib/iomap.c
!Elib/pci_iomap.c
</chapter>
</book>

6
Documentation/devicetree/bindings/gpio/led.txt
View File

@ -7,9 +7,9 @@ Each LED is represented as a sub-node of the gpio-leds device. Each
node's name represents the name of the corresponding LED.
LED sub-node properties:
- gpios : Should specify the LED's GPIO, see "Specifying GPIO information
for devices" in Documentation/devicetree/booting-without-of.txt. Active
low LEDs should be indicated using flags in the GPIO specifier.
- gpios : Should specify the LED's GPIO, see "gpios property" in
Documentation/devicetree/gpio.txt. Active low LEDs should be
indicated using flags in the GPIO specifier.
- label : (optional) The label for this LED. If omitted, the label is
taken from the node name (excluding the unit address).
- linux,default-trigger : (optional) This parameter, if present, is a

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -30,6 +30,7 @@ national National Semiconductor
nintendo Nintendo
nvidia NVIDIA
nxp NXP Semiconductors
picochip Picochip Ltd
powervr Imagination Technologies
qcom Qualcomm, Inc.
ramtron Ramtron International

4
Documentation/driver-model/devres.txt
View File

@ -233,6 +233,10 @@ certainly invest a bit more effort into libata core layer).
6. List of managed interfaces
-----------------------------
MEM
devm_kzalloc()
devm_kfree()
IO region
devm_request_region()
devm_request_mem_region()

14
Documentation/feature-removal-schedule.txt
View File

@ -510,3 +510,17 @@ Why: The pci_scan_bus_parented() interface creates a new root bus. The
convert to using pci_scan_root_bus() so they can supply a list of
bus resources when the bus is created.
Who: Bjorn Helgaas <bhelgaas@google.com>
----------------------------
What: The CAP9 SoC family will be removed
When: 3.4
Files: arch/arm/mach-at91/at91cap9.c
arch/arm/mach-at91/at91cap9_devices.c
arch/arm/mach-at91/include/mach/at91cap9.h
arch/arm/mach-at91/include/mach/at91cap9_matrix.h
arch/arm/mach-at91/include/mach/at91cap9_ddrsdr.h
arch/arm/mach-at91/board-cap9adk.c
Why: The code is not actively maintained and platforms are now hard to find.
Who: Nicolas Ferre <nicolas.ferre@atmel.com>
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

26
Documentation/hwmon/jc42
View File

@ -7,21 +7,29 @@ Supported chips:
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.analog.com/static/imported-files/data_sheets/ADT7408.pdf
* IDT TSE2002B3, TS3000B3
Prefix: 'tse2002b3', 'ts3000b3'
* Atmel AT30TS00
Prefix: 'at30ts00'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.idt.com/products/getdoc.cfm?docid=18715691
http://www.idt.com/products/getdoc.cfm?docid=18715692
http://www.atmel.com/Images/doc8585.pdf
* IDT TSE2002B3, TSE2002GB2, TS3000B3, TS3000GB2
Prefix: 'tse2002', 'ts3000'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.idt.com/sites/default/files/documents/IDT_TSE2002B3C_DST_20100512_120303152056.pdf
http://www.idt.com/sites/default/files/documents/IDT_TSE2002GB2A1_DST_20111107_120303145914.pdf
http://www.idt.com/sites/default/files/documents/IDT_TS3000B3A_DST_20101129_120303152013.pdf
http://www.idt.com/sites/default/files/documents/IDT_TS3000GB2A1_DST_20111104_120303151012.pdf
* Maxim MAX6604
Prefix: 'max6604'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://datasheets.maxim-ic.com/en/ds/MAX6604.pdf
* Microchip MCP9805, MCP98242, MCP98243, MCP9843
Prefixes: 'mcp9805', 'mcp98242', 'mcp98243', 'mcp9843'
* Microchip MCP9804, MCP9805, MCP98242, MCP98243, MCP9843
Prefixes: 'mcp9804', 'mcp9805', 'mcp98242', 'mcp98243', 'mcp9843'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://ww1.microchip.com/downloads/en/DeviceDoc/22203C.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/21977b.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/21996a.pdf
http://ww1.microchip.com/downloads/en/DeviceDoc/22153c.pdf
@ -48,6 +56,12 @@ Supported chips:
Datasheets:
http://www.st.com/stonline/products/literature/ds/13447/stts424.pdf
http://www.st.com/stonline/products/literature/ds/13448/stts424e02.pdf
* ST Microelectronics STTS2002, STTS3000
Prefix: 'stts2002', 'stts3000'
Addresses scanned: I2C 0x18 - 0x1f
Datasheets:
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00225278.pdf
http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATA_BRIEF/CD00270920.pdf
* JEDEC JC 42.4 compliant temperature sensor chips
Prefix: 'jc42'
Addresses scanned: I2C 0x18 - 0x1f

9
Documentation/hwmon/w83627ehf
View File

@ -50,7 +50,7 @@ W83627DHG, W83627DHG-P, W83627UHG, W83667HG, W83667HG-B, W83667HG-I
(NCT6775F), and NCT6776F super I/O chips. We will refer to them collectively
as Winbond chips.
The chips implement 2 to 4 temperature sensors (9 for NCT6775F and NCT6776F),
The chips implement 3 to 4 temperature sensors (9 for NCT6775F and NCT6776F),
2 to 5 fan rotation speed sensors, 8 to 10 analog voltage sensors, one VID
(except for 627UHG), alarms with beep warnings (control unimplemented),
and some automatic fan regulation strategies (plus manual fan control mode).
@ -143,8 +143,13 @@ pwm[1-4]_min_output - minimum fan speed (range 1 - 255), when the temperature
pwm[1-4]_stop_time - how many milliseconds [ms] must elapse to switch
corresponding fan off. (when the temperature was below
defined range).
pwm[1-4]_start_output-minimum fan speed (range 1 - 255) when spinning up
pwm[1-4]_step_output- rate of fan speed change (1 - 255)
pwm[1-4]_stop_output- minimum fan speed (range 1 - 255) when spinning down
pwm[1-4]_max_output - maximum fan speed (range 1 - 255), when the temperature
is above defined range.
Note: last two functions are influenced by other control bits, not yet exported
Note: last six functions are influenced by other control bits, not yet exported
by the driver, so a change might not have any effect.
Implementation Details

14
Documentation/hwmon/zl6100
View File

@ -88,14 +88,12 @@ Module parameters
delay
-----
Some Intersil/Zilker Labs DC-DC controllers require a minimum interval between
I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though
1 ms appears to be sufficient and has not caused any problems in testing.
The problem is known to affect ZL6100, ZL2105, and ZL2008. It is known not to
affect ZL2004 and ZL6105. The driver automatically sets the interval to 1 ms
except for ZL2004 and ZL6105. To enable manual override, the driver provides a
writeable module parameter, 'delay', which can be used to set the interval to
a value between 0 and 65,535 microseconds.
Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C
bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms
appears to be sufficient and has not caused any problems in testing. The problem
is known to affect all currently supported chips. For manual override, the
driver provides a writeable module parameter, 'delay', which can be used to set
the interval to a value between 0 and 65,535 microseconds.
Sysfs entries

3
Documentation/input/alps.txt
View File

@ -13,7 +13,8 @@ Detection
All ALPS touchpads should respond to the "E6 report" command sequence:
E8-E6-E6-E6-E9. An ALPS touchpad should respond with either 00-00-0A or
00-00-64.
00-00-64 if no buttons are pressed. The bits 0-2 of the first byte will be 1s
if some buttons are pressed.
If the E6 report is successful, the touchpad model is identified using the "E7
report" sequence: E8-E7-E7-E7-E9. The response is the model signature and is

72
Documentation/input/event-codes.txt
View File

@ -17,11 +17,11 @@ reports supported by a device are also provided by sysfs in
class/input/event*/device/capabilities/, and the properties of a device are
provided in class/input/event*/device/properties.
Types:
==========
Types are groupings of codes under a logical input construct. Each type has a
set of applicable codes to be used in generating events. See the Codes section
for details on valid codes for each type.
Event types:
===========
Event types are groupings of codes under a logical input construct. Each
type has a set of applicable codes to be used in generating events. See the
Codes section for details on valid codes for each type.
* EV_SYN:
- Used as markers to separate events. Events may be separated in time or in
@ -63,9 +63,9 @@ for details on valid codes for each type.
* EV_FF_STATUS:
- Used to receive force feedback device status.
Codes:
==========
Codes define the precise type of event.
Event codes:
===========
Event codes define the precise type of event.
EV_SYN:
----------
@ -220,6 +220,56 @@ EV_PWR:
EV_PWR events are a special type of event used specifically for power
mangement. Its usage is not well defined. To be addressed later.
Device properties:
=================
Normally, userspace sets up an input device based on the data it emits,
i.e., the event types. In the case of two devices emitting the same event
types, additional information can be provided in the form of device
properties.
INPUT_PROP_DIRECT + INPUT_PROP_POINTER:
--------------------------------------
The INPUT_PROP_DIRECT property indicates that device coordinates should be
directly mapped to screen coordinates (not taking into account trivial
transformations, such as scaling, flipping and rotating). Non-direct input
devices require non-trivial transformation, such as absolute to relative
transformation for touchpads. Typical direct input devices: touchscreens,
drawing tablets; non-direct devices: touchpads, mice.
The INPUT_PROP_POINTER property indicates that the device is not transposed
on the screen and thus requires use of an on-screen pointer to trace user's
movements. Typical pointer devices: touchpads, tablets, mice; non-pointer
device: touchscreen.
If neither INPUT_PROP_DIRECT or INPUT_PROP_POINTER are set, the property is
considered undefined and the device type should be deduced in the
traditional way, using emitted event types.
INPUT_PROP_BUTTONPAD:
--------------------
For touchpads where the button is placed beneath the surface, such that
pressing down on the pad causes a button click, this property should be
set. Common in clickpad notebooks and macbooks from 2009 and onwards.
Originally, the buttonpad property was coded into the bcm5974 driver
version field under the name integrated button. For backwards
compatibility, both methods need to be checked in userspace.
INPUT_PROP_SEMI_MT:
------------------
Some touchpads, most common between 2008 and 2011, can detect the presence
of multiple contacts without resolving the individual positions; only the
number of contacts and a rectangular shape is known. For such
touchpads, the semi-mt property should be set.
Depending on the device, the rectangle may enclose all touches, like a
bounding box, or just some of them, for instance the two most recent
touches. The diversity makes the rectangle of limited use, but some
gestures can normally be extracted from it.
If INPUT_PROP_SEMI_MT is not set, the device is assumed to be a true MT
device.
Guidelines:
==========
The guidelines below ensure proper single-touch and multi-finger functionality.
@ -240,6 +290,8 @@ used to report when a touch is active on the screen.
BTN_{MOUSE,LEFT,MIDDLE,RIGHT} must not be reported as the result of touch
contact. BTN_TOOL_<name> events should be reported where possible.
For new hardware, INPUT_PROP_DIRECT should be set.
Trackpads:
----------
Legacy trackpads that only provide relative position information must report
@ -250,6 +302,8 @@ location of the touch. BTN_TOUCH should be used to report when a touch is active
on the trackpad. Where multi-finger support is available, BTN_TOOL_<name> should
be used to report the number of touches active on the trackpad.
For new hardware, INPUT_PROP_POINTER should be set.
Tablets:
----------
BTN_TOOL_<name> events must be reported when a stylus or other tool is active on
@ -260,3 +314,5 @@ button may be used for buttons on the tablet except BTN_{MOUSE,LEFT}.
BTN_{0,1,2,etc} are good generic codes for unlabeled buttons. Do not use
meaningful buttons, like BTN_FORWARD, unless the button is labeled for that
purpose on the device.
For new hardware, both INPUT_PROP_DIRECT and INPUT_PROP_POINTER should be set.

6
Documentation/kernel-parameters.txt
View File

@ -2211,6 +2211,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
default: off.
printk.always_kmsg_dump=
Trigger kmsg_dump for cases other than kernel oops or
panics
Format: <bool> (1/Y/y=enable, 0/N/n=disable)
default: disabled
printk.time= Show timing data prefixed to each printk message line
Format: <bool> (1/Y/y=enable, 0/N/n=disable)

17
Documentation/pinctrl.txt
View File

@ -857,42 +857,41 @@ case), we define a mapping like this:
...
{
.name "2bit"
.name = "2bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
.name = "4bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
.name = "4bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
.name = "8bit"
.ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_3_grp",
@ -995,7 +994,7 @@ This is enabled by simply setting the .hog_on_boot field in the map to true,
like this:
{
.name "POWERMAP"
.name = "POWERMAP"
.ctrl_dev_name = "pinctrl-foo",
.function = "power_func",
.hog_on_boot = true,
@ -1025,7 +1024,7 @@ it, disables and releases it, and muxes it in on the pins defined by group B:
foo_switch()
{
struct pinmux pmx;
struct pinmux *pmx;
/* Enable on position A */
pmx = pinmux_get(&device, "spi0-pos-A");

2
Documentation/power/basic-pm-debugging.txt
View File

@ -15,7 +15,7 @@ test at least a couple of times in a row for confidence. [This is necessary,
because some problems only show up on a second attempt at suspending and
resuming the system.] Moreover, hibernating in the "reboot" and "shutdown"
modes causes the PM core to skip some platform-related callbacks which on ACPI
systems might be necessary to make hibernation work. Thus, if you machine fails
systems might be necessary to make hibernation work. Thus, if your machine fails
to hibernate or resume in the "reboot" mode, you should try the "platform" mode:
# echo platform > /sys/power/disk

8
Documentation/power/freezing-of-tasks.txt
View File

@ -120,10 +120,10 @@ So in practice, the 'at all' may become a 'why freeze kernel threads?' and
freezing user threads I don't find really objectionable."
Still, there are kernel threads that may want to be freezable. For example, if
a kernel that belongs to a device driver accesses the device directly, it in
principle needs to know when the device is suspended, so that it doesn't try to
access it at that time. However, if the kernel thread is freezable, it will be
frozen before the driver's .suspend() callback is executed and it will be
a kernel thread that belongs to a device driver accesses the device directly, it
in principle needs to know when the device is suspended, so that it doesn't try
to access it at that time. However, if the kernel thread is freezable, it will
be frozen before the driver's .suspend() callback is executed and it will be
thawed after the driver's .resume() callback has run, so it won't be accessing
the device while it's suspended.

3
Documentation/stable_kernel_rules.txt
View File

@ -25,7 +25,8 @@ Procedure for submitting patches to the -stable tree:
- Send the patch, after verifying that it follows the above rules, to
stable@vger.kernel.org. You must note the upstream commit ID in the
changelog of your submission.
changelog of your submission, as well as the kernel version you wish
it to be applied to.
- To have the patch automatically included in the stable tree, add the tag
Cc: stable@vger.kernel.org
in the sign-off area. Once the patch is merged it will be applied to

2
Documentation/sysctl/kernel.txt
View File

@ -601,6 +601,8 @@ can be ORed together:
instead of using the one provided by the hardware.
512 - A kernel warning has occurred.
1024 - A module from drivers/staging was loaded.
2048 - The system is working around a severe firmware bug.
4096 - An out-of-tree module has been loaded.
==============================================================

2
Documentation/thermal/sysfs-api.txt
View File

@ -284,7 +284,7 @@ method, the sys I/F structure will be built like this:
The framework includes a simple notification mechanism, in the form of a
netlink event. Netlink socket initialization is done during the _init_
of the framework. Drivers which intend to use the notification mechanism
just need to call generate_netlink_event() with two arguments viz
just need to call thermal_generate_netlink_event() with two arguments viz
(originator, event). Typically the originator will be an integer assigned
to a thermal_zone_device when it registers itself with the framework. The
event will be one of:{THERMAL_AUX0, THERMAL_AUX1, THERMAL_CRITICAL,

2
Documentation/virtual/00-INDEX
View File

@ -4,8 +4,6 @@ Virtualization support in the Linux kernel.
- this file.
kvm/
- Kernel Virtual Machine. See also http://linux-kvm.org
lguest/
- Extremely simple hypervisor for experimental/educational use.
uml/
- User Mode Linux, builds/runs Linux kernel as a userspace program.
virtio.txt

150
MAINTAINERS
View File

@ -159,7 +159,7 @@ S: Maintained
F: drivers/net/ethernet/realtek/r8169.c
8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-serial@vger.kernel.org
W: http://serial.sourceforge.net
S: Maintained
@ -269,7 +269,6 @@ S: Orphan
F: drivers/platform/x86/wmi.c
AD1889 ALSA SOUND DRIVER
M: Kyle McMartin <kyle@mcmartin.ca>
M: Thibaut Varene <T-Bone@parisc-linux.org>
W: http://wiki.parisc-linux.org/AD1889
L: linux-parisc@vger.kernel.org
@ -789,12 +788,6 @@ F: arch/arm/mach-mx*/
F: arch/arm/mach-imx/
F: arch/arm/plat-mxc/
ARM/FREESCALE IMX51
M: Amit Kucheria <amit.kucheria@canonical.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-mx5/
ARM/FREESCALE IMX6
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -969,7 +962,7 @@ F: drivers/tty/serial/msm_serial.c
F: drivers/platform/msm/
F: drivers/*/pm8???-*
F: include/linux/mfd/pm8xxx/
T: git git://codeaurora.org/quic/kernel/davidb/linux-msm.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm.git
S: Maintained
ARM/TOSA MACHINE SUPPORT
@ -1317,7 +1310,7 @@ F: drivers/atm/
F: include/linux/atm*
ATMEL AT91 MCI DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Ludovic Desroches <ludovic.desroches@atmel.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.atmel.com/products/AT91/
W: http://www.at91.com/
@ -1325,7 +1318,7 @@ S: Maintained
F: drivers/mmc/host/at91_mci.c
ATMEL AT91 / AT32 MCI DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Ludovic Desroches <ludovic.desroches@atmel.com>
S: Maintained
F: drivers/mmc/host/atmel-mci.c
F: drivers/mmc/host/atmel-mci-regs.h
@ -1520,19 +1513,23 @@ F: drivers/mtd/devices/block2mtd.c
BLUETOOTH DRIVERS
M: Marcel Holtmann <marcel@holtmann.org>
M: "Gustavo F. Padovan" <padovan@profusion.mobi>
M: Gustavo Padovan <gustavo@padovan.org>
M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
S: Maintained
F: drivers/bluetooth/
BLUETOOTH SUBSYSTEM
M: Marcel Holtmann <marcel@holtmann.org>
M: "Gustavo F. Padovan" <padovan@profusion.mobi>
M: Gustavo Padovan <gustavo@padovan.org>
M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
S: Maintained
F: net/bluetooth/
F: include/net/bluetooth/
@ -1724,6 +1721,14 @@ F: include/linux/can/error.h
F: include/linux/can/netlink.h
F: include/linux/can/platform/
CAPABILITIES
M: Serge Hallyn <serge.hallyn@canonical.com>
L: linux-security-module@vger.kernel.org
S: Supported
F: include/linux/capability.h
F: security/capability.c
F: security/commoncap.c
CELL BROADBAND ENGINE ARCHITECTURE
M: Arnd Bergmann <arnd@arndb.de>
L: linuxppc-dev@lists.ozlabs.org
@ -1783,9 +1788,9 @@ X: net/wireless/wext*
CHAR and MISC DRIVERS
M: Arnd Bergmann <arnd@arndb.de>
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
S: Maintained
S: Supported
F: drivers/char/*
F: drivers/misc/*
@ -2246,6 +2251,17 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm.git
S: Supported
F: fs/dlm/
DMA BUFFER SHARING FRAMEWORK
M: Sumit Semwal <sumit.semwal@linaro.org>
S: Maintained
L: linux-media@vger.kernel.org
L: dri-devel@lists.freedesktop.org
L: linaro-mm-sig@lists.linaro.org
F: drivers/base/dma-buf*
F: include/linux/dma-buf*
F: Documentation/dma-buf-sharing.txt
T: git git://git.linaro.org/people/sumitsemwal/linux-dma-buf.git
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
M: Vinod Koul <vinod.koul@intel.com>
M: Dan Williams <dan.j.williams@intel.com>
@ -2276,7 +2292,7 @@ F: drivers/acpi/dock.c
DOCUMENTATION
M: Randy Dunlap <rdunlap@xenotime.net>
L: linux-doc@vger.kernel.org
T: quilt http://userweb.kernel.org/~rdunlap/kernel-doc-patches/current/
T: quilt http://xenotime.net/kernel-doc-patches/current/
S: Maintained
F: Documentation/
@ -2309,7 +2325,7 @@ F: lib/lru_cache.c
F: Documentation/blockdev/drbd/
DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6.git
S: Supported
F: Documentation/kobject.txt
@ -2339,11 +2355,23 @@ F: include/drm/i915*
DRM DRIVERS FOR EXYNOS
M: Inki Dae <inki.dae@samsung.com>
M: Joonyoung Shim <jy0922.shim@samsung.com>
M: Seung-Woo Kim <sw0312.kim@samsung.com>
M: Kyungmin Park <kyungmin.park@samsung.com>
L: dri-devel@lists.freedesktop.org
S: Supported
F: drivers/gpu/drm/exynos
F: include/drm/exynos*
EXYNOS MIPI DISPLAY DRIVERS
M: Inki Dae <inki.dae@samsung.com>
M: Donghwa Lee <dh09.lee@samsung.com>
M: Kyungmin Park <kyungmin.park@samsung.com>
L: linux-fbdev@vger.kernel.org
S: Maintained
F: drivers/video/exynos/exynos_mipi*
F: include/video/exynos_mipi*
DSCC4 DRIVER
M: Francois Romieu <romieu@fr.zoreil.com>
L: netdev@vger.kernel.org
@ -2391,7 +2419,7 @@ F: net/bridge/netfilter/ebt*.c
ECRYPT FILE SYSTEM
M: Tyler Hicks <tyhicks@canonical.com>
M: Dustin Kirkland <kirkland@canonical.com>
M: Dustin Kirkland <dustin.kirkland@gazzang.com>
L: ecryptfs@vger.kernel.org
W: https://launchpad.net/ecryptfs
S: Supported
@ -2838,6 +2866,12 @@ S: Maintained
F: drivers/media/video/m5mols/
F: include/media/m5mols.h
FUJITSU TABLET EXTRAS
M: Robert Gerlach <khnz@gmx.de>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/fujitsu-tablet.c
FUSE: FILESYSTEM IN USERSPACE
M: Miklos Szeredi <miklos@szeredi.hu>
L: fuse-devel@lists.sourceforge.net
@ -3039,7 +3073,6 @@ F: drivers/hwspinlock/hwspinlock_*
F: include/linux/hwspinlock.h
HARMONY SOUND DRIVER
M: Kyle McMartin <kyle@mcmartin.ca>
L: linux-parisc@vger.kernel.org
S: Maintained
F: sound/parisc/harmony.*
@ -3310,6 +3343,12 @@ S: Maintained
F: net/ieee802154/
F: drivers/ieee802154/
IIO SUBSYSTEM AND DRIVERS
M: Jonathan Cameron <jic23@cam.ac.uk>
L: linux-iio@vger.kernel.org
S: Maintained
F: drivers/staging/iio/
IKANOS/ADI EAGLE ADSL USB DRIVER
M: Matthieu Castet <castet.matthieu@free.fr>
M: Stanislaw Gruszka <stf_xl@wp.pl>
@ -3768,7 +3807,7 @@ F: Documentation/kdump/
KERNEL AUTOMOUNTER v4 (AUTOFS4)
M: Ian Kent <raven@themaw.net>
L: autofs@linux.kernel.org
L: autofs@vger.kernel.org
S: Maintained
F: fs/autofs4/
@ -3978,11 +4017,11 @@ M: Rusty Russell <rusty@rustcorp.com.au>
L: lguest@lists.ozlabs.org
W: http://lguest.ozlabs.org/
S: Odd Fixes
F: Documentation/virtual/lguest/
F: arch/x86/include/asm/lguest*.h
F: arch/x86/lguest/
F: drivers/lguest/
F: include/linux/lguest*.h
F: arch/x86/include/asm/lguest*.h
F: tools/lguest/
LINUX FOR IBM pSERIES (RS/6000)
M: Paul Mackerras <paulus@au.ibm.com>
@ -4122,10 +4161,11 @@ L: linux-ntfs-dev@lists.sourceforge.net
W: http://www.linux-ntfs.org/content/view/19/37/
S: Maintained
F: Documentation/ldm.txt
F: fs/partitions/ldm.*
F: block/partitions/ldm.*
LogFS
M: Joern Engel <joern@logfs.org>
M: Prasad Joshi <prasadjoshi.linux@gmail.com>
L: logfs@logfs.org
W: logfs.org
S: Maintained
@ -4267,13 +4307,6 @@ S: Orphan
F: drivers/video/matrox/matroxfb_*
F: include/linux/matroxfb.h
MAX1668 TEMPERATURE SENSOR DRIVER
M: "David George" <david.george@ska.ac.za>
L: lm-sensors@lm-sensors.org
S: Maintained
F: Documentation/hwmon/max1668
F: drivers/hwmon/max1668.c
MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER
M: "Hans J. Koch" <hjk@hansjkoch.de>
L: lm-sensors@lm-sensors.org
@ -4679,7 +4712,7 @@ NTFS FILESYSTEM
M: Anton Altaparmakov <anton@tuxera.com>
L: linux-ntfs-dev@lists.sourceforge.net
W: http://www.tuxera.com/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs.git
S: Supported
F: Documentation/filesystems/ntfs.txt
F: fs/ntfs/
@ -4992,9 +5025,8 @@ F: Documentation/blockdev/paride.txt
F: drivers/block/paride/
PARISC ARCHITECTURE
M: Kyle McMartin <kyle@mcmartin.ca>
M: Helge Deller <deller@gmx.de>
M: "James E.J. Bottomley" <jejb@parisc-linux.org>
M: Helge Deller <deller@gmx.de>
L: linux-parisc@vger.kernel.org
W: http://www.parisc-linux.org/
Q: http://patchwork.kernel.org/project/linux-parisc/list/
@ -5625,7 +5657,7 @@ W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
F: arch/s390/
F: drivers/s390/
F: fs/partitions/ibm.c
F: block/partitions/ibm.c
F: Documentation/s390/
F: Documentation/DocBook/s390*
@ -5848,12 +5880,13 @@ F: drivers/mmc/host/sdhci-s3c.c
SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER
M: Viresh Kumar <viresh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-mmc@vger.kernel.org
S: Maintained
F: drivers/mmc/host/sdhci-spear.c
SECURITY SUBSYSTEM
M: James Morris <jmorris@namei.org>
M: James Morris <james.l.morris@oracle.com>
L: linux-security-module@vger.kernel.org (suggested Cc:)
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git
W: http://security.wiki.kernel.org/
@ -5866,7 +5899,7 @@ S: Supported
SELINUX SECURITY MODULE
M: Stephen Smalley <sds@tycho.nsa.gov>
M: James Morris <jmorris@namei.org>
M: James Morris <james.l.morris@oracle.com>
M: Eric Paris <eparis@parisplace.org>
L: selinux@tycho.nsa.gov (subscribers-only, general discussion)
W: http://selinuxproject.org
@ -6190,24 +6223,32 @@ F: drivers/tty/serial/sunzilog.h
SPEAR PLATFORM SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/plat-spear/
SPEAR3XX MACHINE SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear3xx/
SPEAR6XX MACHINE SUPPORT
M: Rajeev Kumar <rajeev-dlh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear6xx/
SPEAR CLOCK FRAMEWORK SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/mach-spear*/clock.c
@ -6216,6 +6257,8 @@ F: arch/arm/plat-spear/include/plat/clock.h
SPEAR PAD MULTIPLEXING SUPPORT
M: Viresh Kumar <viresh.kumar@st.com>
L: spear-devel@list.st.com
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
W: http://www.st.com/spear
S: Maintained
F: arch/arm/plat-spear/include/plat/padmux.h
@ -6268,15 +6311,15 @@ S: Maintained
F: arch/alpha/kernel/srm_env.c
STABLE BRANCH
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: stable@vger.kernel.org
S: Maintained
S: Supported
STAGING SUBSYSTEM
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
L: devel@driverdev.osuosl.org
S: Maintained
S: Supported
F: drivers/staging/
STAGING - AGERE HERMES II and II.5 WIRELESS DRIVERS
@ -6388,11 +6431,6 @@ M: Omar Ramirez Luna <omar.ramirez@ti.com>
S: Odd Fixes
F: drivers/staging/tidspbridge/
STAGING - TRIDENT TVMASTER TMxxxx USB VIDEO CAPTURE DRIVERS
L: linux-media@vger.kernel.org
S: Odd Fixes
F: drivers/staging/tm6000/
STAGING - USB ENE SM/MS CARD READER DRIVER
M: Al Cho <acho@novell.com>
S: Odd Fixes
@ -6661,10 +6699,10 @@ S: Maintained
K: ^Subject:.*(?i)trivial
TTY LAYER
M: Greg Kroah-Hartman <gregkh@suse.de>
S: Maintained
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6.git
F: drivers/tty/*
F: drivers/tty/
F: drivers/tty/serial/serial_core.c
F: include/linux/serial_core.h
F: include/linux/serial.h
@ -6950,7 +6988,7 @@ S: Maintained
F: drivers/usb/serial/digi_acceleport.c
USB SERIAL DRIVER
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
S: Supported
F: Documentation/usb/usb-serial.txt
@ -6965,9 +7003,8 @@ S: Maintained
F: drivers/usb/serial/empeg.c
USB SERIAL KEYSPAN DRIVER
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
W: http://www.kroah.com/linux/
S: Maintained
F: drivers/usb/serial/*keyspan*
@ -6995,7 +7032,7 @@ F: Documentation/video4linux/sn9c102.txt
F: drivers/media/video/sn9c102/
USB SUBSYSTEM
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
W: http://www.linux-usb.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6.git
@ -7082,7 +7119,7 @@ F: fs/hppfs/
USERSPACE I/O (UIO)
M: "Hans J. Koch" <hjk@hansjkoch.de>
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Maintained
F: Documentation/DocBook/uio-howto.tmpl
F: drivers/uio/
@ -7272,7 +7309,7 @@ WATCHDOG DEVICE DRIVERS
M: Wim Van Sebroeck <wim@iguana.be>
L: linux-watchdog@vger.kernel.org
W: http://www.linux-watchdog.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog.git
T: git git://www.linux-watchdog.org/linux-watchdog.git
S: Maintained
F: Documentation/watchdog/
F: drivers/watchdog/
@ -7357,6 +7394,7 @@ S: Supported
F: Documentation/hwmon/wm83??
F: arch/arm/mach-s3c64xx/mach-crag6410*
F: drivers/leds/leds-wm83*.c
F: drivers/hwmon/wm83??-hwmon.c
F: drivers/input/misc/wm831x-on.c
F: drivers/input/touchscreen/wm831x-ts.c
F: drivers/input/touchscreen/wm97*.c

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 3
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION =
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

2
arch/alpha/include/asm/futex.h
View File

@ -108,7 +108,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
" lda $31,3b-2b(%0)\n"
" .previous\n"
: "+r"(ret), "=&r"(prev), "=&r"(cmp)
: "r"(uaddr), "r"((long)oldval), "r"(newval)
: "r"(uaddr), "r"((long)(int)oldval), "r"(newval)
: "memory");
*uval = prev;

6
arch/arm/Kconfig
View File

@ -754,7 +754,7 @@ config ARCH_SA1100
select ARCH_HAS_CPUFREQ
select CPU_FREQ
select GENERIC_CLOCKEVENTS
select CLKDEV_LOOKUP
select HAVE_CLK
select HAVE_SCHED_CLOCK
select TICK_ONESHOT
select ARCH_REQUIRE_GPIOLIB
@ -825,7 +825,6 @@ config ARCH_S5PC100
select HAVE_CLK
select CLKDEV_LOOKUP
select CPU_V7
select ARM_L1_CACHE_SHIFT_6
select ARCH_USES_GETTIMEOFFSET
select HAVE_S3C2410_I2C if I2C
select HAVE_S3C_RTC if RTC_CLASS
@ -842,7 +841,6 @@ config ARCH_S5PV210
select HAVE_CLK
select CLKDEV_LOOKUP
select CLKSRC_MMIO
select ARM_L1_CACHE_SHIFT_6
select ARCH_HAS_CPUFREQ
select GENERIC_CLOCKEVENTS
select HAVE_SCHED_CLOCK
@ -1282,7 +1280,7 @@ config ARM_ERRATA_743622
depends on CPU_V7
help
This option enables the workaround for the 743622 Cortex-A9
(r2p0..r2p2) erratum. Under very rare conditions, a faulty
(r2p*) erratum. Under very rare conditions, a faulty
optimisation in the Cortex-A9 Store Buffer may lead to data
corruption. This workaround sets a specific bit in the diagnostic
register of the Cortex-A9 which disables the Store Buffer

1
arch/arm/Makefile
View File

@ -160,7 +160,6 @@ machine-$(CONFIG_ARCH_MSM) := msm
machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
machine-$(CONFIG_ARCH_IMX_V4_V5) := imx
machine-$(CONFIG_ARCH_IMX_V6_V7) := imx
machine-$(CONFIG_ARCH_MX5) := mx5
machine-$(CONFIG_ARCH_MXS) := mxs
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_NOMADIK) := nomadik

1
arch/arm/boot/.gitignore vendored
View File

@ -3,3 +3,4 @@ zImage
xipImage
bootpImage
uImage
*.dtb

1
arch/arm/boot/dts/exynos4210.dtsi
View File

@ -29,6 +29,7 @@
compatible = "arm,cortex-a9-gic";
#interrupt-cells = <3>;
interrupt-controller;
cpu-offset = <0x8000>;
reg = <0x10490000 0x1000>, <0x10480000 0x100>;
};

6
arch/arm/boot/dts/tegra-paz00.dts
View File

@ -46,11 +46,11 @@
};
serial@70006200 {
status = "disable";
clock-frequency = <216000000>;
};
serial@70006300 {
clock-frequency = <216000000>;
status = "disable";
};
serial@70006400 {
@ -60,7 +60,7 @@
sdhci@c8000000 {
cd-gpios = <&gpio 173 0>; /* gpio PV5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 155 0>; /* gpio PT3 */
power-gpios = <&gpio 169 0>; /* gpio PV1 */
};
sdhci@c8000200 {

7
arch/arm/common/gic.c
View File

@ -41,6 +41,7 @@
#include <asm/irq.h>
#include <asm/exception.h>
#include <asm/smp_plat.h>
#include <asm/mach/irq.h>
#include <asm/hardware/gic.h>
@ -352,11 +353,7 @@ static void __init gic_dist_init(struct gic_chip_data *gic)
unsigned int gic_irqs = gic->gic_irqs;
struct irq_domain *domain = &gic->domain;
void __iomem *base = gic_data_dist_base(gic);
u32 cpu = 0;
#ifdef CONFIG_SMP
cpu = cpu_logical_map(smp_processor_id());
#endif
u32 cpu = cpu_logical_map(smp_processor_id());
cpumask = 1 << cpu;
cpumask |= cpumask << 8;

7
arch/arm/common/it8152.c
View File

@ -320,13 +320,6 @@ err0:
return -EBUSY;
}
/*
* If we set up a device for bus mastering, we need to check the latency
* timer as we don't have even crappy BIOSes to set it properly.
* The implementation is from arch/i386/pci/i386.c
*/
unsigned int pcibios_max_latency = 255;
/* ITE bridge requires setting latency timer to avoid early bus access
termination by PCI bus master devices
*/

3
arch/arm/common/pl330.c
View File

@ -1502,12 +1502,13 @@ int pl330_chan_ctrl(void *ch_id, enum pl330_chan_op op)
struct pl330_thread *thrd = ch_id;
struct pl330_dmac *pl330;
unsigned long flags;
int ret = 0, active = thrd->req_running;
int ret = 0, active;
if (!thrd || thrd->free || thrd->dmac->state == DYING)
return -EINVAL;
pl330 = thrd->dmac;
active = thrd->req_running;
spin_lock_irqsave(&pl330->lock, flags);

61
arch/arm/configs/mx5_defconfig → arch/arm/configs/imx_v6_v7_defconfig
View File

@ -3,6 +3,7 @@ CONFIG_EXPERIMENTAL=y
CONFIG_KERNEL_LZO=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
CONFIG_RELAY=y
CONFIG_EXPERT=y
# CONFIG_SLUB_DEBUG is not set
@ -14,20 +15,31 @@ CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_LBDAF is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ARCH_MXC=y
CONFIG_ARCH_MX5=y
CONFIG_MACH_MX51_BABBAGE=y
CONFIG_MACH_MX31LILLY=y
CONFIG_MACH_MX31LITE=y
CONFIG_MACH_PCM037=y
CONFIG_MACH_PCM037_EET=y
CONFIG_MACH_MX31_3DS=y
CONFIG_MACH_MX31MOBOARD=y
CONFIG_MACH_QONG=y
CONFIG_MACH_ARMADILLO5X0=y
CONFIG_MACH_KZM_ARM11_01=y
CONFIG_MACH_PCM043=y
CONFIG_MACH_MX35_3DS=y
CONFIG_MACH_EUKREA_CPUIMX35=y
CONFIG_MACH_VPR200=y
CONFIG_MACH_IMX51_DT=y
CONFIG_MACH_MX51_3DS=y
CONFIG_MACH_EUKREA_CPUIMX51=y
CONFIG_MACH_EUKREA_CPUIMX51SD=y
CONFIG_MACH_MX51_EFIKAMX=y
CONFIG_MACH_MX51_EFIKASB=y
CONFIG_MACH_MX53_EVK=y
CONFIG_MACH_MX53_SMD=y
CONFIG_MACH_MX53_LOCO=y
CONFIG_MACH_MX53_ARD=y
CONFIG_MACH_IMX53_DT=y
CONFIG_SOC_IMX6Q=y
CONFIG_MXC_PWM=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_SMP=y
CONFIG_VMSPLIT_2G=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_AEABI=y
@ -49,7 +61,7 @@ CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_IPV6 is not set
CONFIG_IPV6=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
@ -68,24 +80,20 @@ CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_ATA=y
CONFIG_PATA_IMX=y
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_MARVELL_PHY=y
CONFIG_DAVICOM_PHY=y
CONFIG_QSEMI_PHY=y
CONFIG_LXT_PHY=y
CONFIG_CICADA_PHY=y
CONFIG_VITESSE_PHY=y
CONFIG_SMSC_PHY=y
CONFIG_BROADCOM_PHY=y
CONFIG_ICPLUS_PHY=y
CONFIG_REALTEK_PHY=y
CONFIG_NATIONAL_PHY=y
CONFIG_STE10XP=y
CONFIG_LSI_ET1011C_PHY=y
CONFIG_MICREL_PHY=y
CONFIG_NET_ETHERNET=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_FARADAY is not set
CONFIG_FEC=y
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_SMC91X=y
CONFIG_SMC911X=y
CONFIG_SMSC911X=y
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_WLAN is not set
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
@ -124,7 +132,6 @@ CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_MXC=y
CONFIG_USB_STORAGE=y
CONFIG_MMC=y
CONFIG_MMC_BLOCK=m
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_ESDHC_IMX=y
@ -133,6 +140,8 @@ CONFIG_LEDS_CLASS=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
CONFIG_RTC_MXC=y
CONFIG_DMADEVICES=y
CONFIG_IMX_SDMA=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y

144
arch/arm/configs/mx3_defconfig
View File

@ -1,144 +0,0 @@
CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
CONFIG_SLAB=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ARCH_MXC=y
CONFIG_MACH_MX31ADS_WM1133_EV1=y
CONFIG_MACH_MX31LILLY=y
CONFIG_MACH_MX31LITE=y
CONFIG_MACH_PCM037=y
CONFIG_MACH_PCM037_EET=y
CONFIG_MACH_MX31_3DS=y
CONFIG_MACH_MX31MOBOARD=y
CONFIG_MACH_QONG=y
CONFIG_MACH_ARMADILLO5X0=y
CONFIG_MACH_KZM_ARM11_01=y
CONFIG_MACH_PCM043=y
CONFIG_MACH_MX35_3DS=y
CONFIG_MACH_EUKREA_CPUIMX35=y
CONFIG_MXC_IRQ_PRIOR=y
CONFIG_MXC_PWM=y
CONFIG_ARM_ERRATA_411920=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_AEABI=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="noinitrd console=ttymxc0,115200 root=/dev/mtdblock2 rw ip=off"
CONFIG_VFP=y
CONFIG_PM_DEBUG=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_LRO is not set
# CONFIG_INET_DIAG is not set
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_MXC=y
CONFIG_MTD_UBI=y
# CONFIG_BLK_DEV is not set
CONFIG_MISC_DEVICES=y
CONFIG_EEPROM_AT24=y
CONFIG_NETDEVICES=y
CONFIG_SMSC_PHY=y
CONFIG_NET_ETHERNET=y
CONFIG_SMSC911X=y
CONFIG_DNET=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_IMX=y
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
# CONFIG_VT is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=m
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_IMX=y
CONFIG_SERIAL_IMX_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_IMX=y
CONFIG_SPI=y
CONFIG_W1=y
CONFIG_W1_MASTER_MXC=y
CONFIG_W1_SLAVE_THERM=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_IMX2_WDT=y
CONFIG_MFD_WM8350_I2C=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_WM8350=y
CONFIG_MEDIA_SUPPORT=y
CONFIG_VIDEO_DEV=y
# CONFIG_RC_CORE is not set
# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
CONFIG_SOC_CAMERA=y
CONFIG_SOC_CAMERA_MT9M001=y
CONFIG_SOC_CAMERA_MT9M111=y
CONFIG_SOC_CAMERA_MT9T031=y
CONFIG_SOC_CAMERA_MT9V022=y
CONFIG_SOC_CAMERA_TW9910=y
CONFIG_SOC_CAMERA_OV772X=y
CONFIG_VIDEO_MX3=y
# CONFIG_RADIO_ADAPTERS is not set
CONFIG_FB=y
CONFIG_SOUND=y
CONFIG_SND=y
# CONFIG_SND_ARM is not set
# CONFIG_SND_SPI is not set
CONFIG_SND_SOC=y
CONFIG_SND_IMX_SOC=y
CONFIG_SND_MXC_SOC_WM1133_EV1=y
CONFIG_SND_SOC_PHYCORE_AC97=y
CONFIG_SND_SOC_EUKREA_TLV320=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_MXC=y
CONFIG_USB_GADGET=m
CONFIG_USB_FSL_USB2=m
CONFIG_USB_G_SERIAL=m
CONFIG_USB_ULPI=y
CONFIG_MMC=y
CONFIG_MMC_MXC=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_MXC=y
CONFIG_DMADEVICES=y
# CONFIG_DNOTIFY is not set
CONFIG_TMPFS=y
CONFIG_JFFS2_FS=y
CONFIG_UBIFS_FS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_SYSCTL_SYSCALL_CHECK=y
# CONFIG_CRYPTO_ANSI_CPRNG is not set

9
arch/arm/include/asm/assembler.h
View File

@ -137,6 +137,11 @@
disable_irq
.endm
.macro save_and_disable_irqs_notrace, oldcpsr
mrs \oldcpsr, cpsr
disable_irq_notrace
.endm
/*
* Restore interrupt state previously stored in a register. We don't
* guarantee that this will preserve the flags.
@ -237,7 +242,7 @@
*/
#ifdef CONFIG_THUMB2_KERNEL
.macro usraccoff, instr, reg, ptr, inc, off, cond, abort, t=T()
.macro usraccoff, instr, reg, ptr, inc, off, cond, abort, t=TUSER()
9999:
.if \inc == 1
\instr\cond\()b\()\t\().w \reg, [\ptr, #\off]
@ -277,7 +282,7 @@
#else /* !CONFIG_THUMB2_KERNEL */
.macro usracc, instr, reg, ptr, inc, cond, rept, abort, t=T()
.macro usracc, instr, reg, ptr, inc, cond, rept, abort, t=TUSER()
.rept \rept
9999:
.if \inc == 1

8
arch/arm/include/asm/domain.h
View File

@ -83,9 +83,9 @@
* instructions (inline assembly)
*/
#ifdef CONFIG_CPU_USE_DOMAINS
#define T(instr) #instr "t"
#define TUSER(instr) #instr "t"
#else
#define T(instr) #instr
#define TUSER(instr) #instr
#endif
#else /* __ASSEMBLY__ */
@ -95,9 +95,9 @@
* instructions
*/
#ifdef CONFIG_CPU_USE_DOMAINS
#define T(instr) instr ## t
#define TUSER(instr) instr ## t
#else
#define T(instr) instr
#define TUSER(instr) instr
#endif
#endif /* __ASSEMBLY__ */

8
arch/arm/include/asm/futex.h
View File

@ -75,9 +75,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
__asm__ __volatile__( \
"1: " T(ldr) " %1, [%3]\n" \
"1: " TUSER(ldr) " %1, [%3]\n" \
" " insn "\n" \
"2: " T(str) " %0, [%3]\n" \
"2: " TUSER(str) " %0, [%3]\n" \
" mov %0, #0\n" \
__futex_atomic_ex_table("%5") \
: "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \
@ -95,10 +95,10 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return -EFAULT;
__asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n"
"1: " T(ldr) " %1, [%4]\n"
"1: " TUSER(ldr) " %1, [%4]\n"
" teq %1, %2\n"
" it eq @ explicit IT needed for the 2b label\n"
"2: " T(streq) " %3, [%4]\n"
"2: " TUSER(streq) " %3, [%4]\n"
__futex_atomic_ex_table("%5")
: "+r" (ret), "=&r" (val)
: "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT)

2
arch/arm/include/asm/hardware/pl330.h
View File

@ -41,7 +41,7 @@ enum pl330_dstcachectrl {
DCCTRL1, /* Bufferable only */
DCCTRL2, /* Cacheable, but do not allocate */
DCCTRL3, /* Cacheable and bufferable, but do not allocate */
DINVALID1 = 8,
DINVALID1, /* AWCACHE = 0x1000 */
DINVALID2,
DCCTRL6, /* Cacheable write-through, allocate on writes only */
DCCTRL7, /* Cacheable write-back, allocate on writes only */

2
arch/arm/include/asm/pmu.h
View File

@ -134,7 +134,7 @@ int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type);
u64 armpmu_event_update(struct perf_event *event,
struct hw_perf_event *hwc,
int idx, int overflow);
int idx);
int armpmu_event_set_period(struct perf_event *event,
struct hw_perf_event *hwc,

1
arch/arm/include/asm/processor.h
View File

@ -22,6 +22,7 @@
#include <asm/hw_breakpoint.h>
#include <asm/ptrace.h>
#include <asm/types.h>
#include <asm/system.h>
#ifdef __KERNEL__
#define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \

6
arch/arm/include/asm/smp.h
View File

@ -70,12 +70,6 @@ extern void platform_secondary_init(unsigned int cpu);
*/
extern void platform_smp_prepare_cpus(unsigned int);
/*
* Logical CPU mapping.
*/
extern int __cpu_logical_map[NR_CPUS];
#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
/*
* Initial data for bringing up a secondary CPU.
*/

6
arch/arm/include/asm/smp_plat.h
View File

@ -43,4 +43,10 @@ static inline int cache_ops_need_broadcast(void)
}
#endif
/*
* Logical CPU mapping.
*/
extern int __cpu_logical_map[];
#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
#endif

10
arch/arm/include/asm/tlb.h
View File

@ -198,7 +198,15 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
unsigned long addr)
{
pgtable_page_dtor(pte);
tlb_add_flush(tlb, addr);
/*
* With the classic ARM MMU, a pte page has two corresponding pmd
* entries, each covering 1MB.
*/
addr &= PMD_MASK;
tlb_add_flush(tlb, addr + SZ_1M - PAGE_SIZE);
tlb_add_flush(tlb, addr + SZ_1M);
tlb_remove_page(tlb, pte);
}

16
arch/arm/include/asm/uaccess.h
View File

@ -227,7 +227,7 @@ do { \
#define __get_user_asm_byte(x,addr,err) \
__asm__ __volatile__( \
"1: " T(ldrb) " %1,[%2],#0\n" \
"1: " TUSER(ldrb) " %1,[%2],#0\n" \
"2:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
@ -263,7 +263,7 @@ do { \
#define __get_user_asm_word(x,addr,err) \
__asm__ __volatile__( \
"1: " T(ldr) " %1,[%2],#0\n" \
"1: " TUSER(ldr) " %1,[%2],#0\n" \
"2:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
@ -308,7 +308,7 @@ do { \
#define __put_user_asm_byte(x,__pu_addr,err) \
__asm__ __volatile__( \
"1: " T(strb) " %1,[%2],#0\n" \
"1: " TUSER(strb) " %1,[%2],#0\n" \
"2:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
@ -341,7 +341,7 @@ do { \
#define __put_user_asm_word(x,__pu_addr,err) \
__asm__ __volatile__( \
"1: " T(str) " %1,[%2],#0\n" \
"1: " TUSER(str) " %1,[%2],#0\n" \
"2:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \
@ -366,10 +366,10 @@ do { \
#define __put_user_asm_dword(x,__pu_addr,err) \
__asm__ __volatile__( \
ARM( "1: " T(str) " " __reg_oper1 ", [%1], #4\n" ) \
ARM( "2: " T(str) " " __reg_oper0 ", [%1]\n" ) \
THUMB( "1: " T(str) " " __reg_oper1 ", [%1]\n" ) \
THUMB( "2: " T(str) " " __reg_oper0 ", [%1, #4]\n" ) \
ARM( "1: " TUSER(str) " " __reg_oper1 ", [%1], #4\n" ) \
ARM( "2: " TUSER(str) " " __reg_oper0 ", [%1]\n" ) \
THUMB( "1: " TUSER(str) " " __reg_oper1 ", [%1]\n" ) \
THUMB( "2: " TUSER(str) " " __reg_oper0 ", [%1, #4]\n" ) \
"3:\n" \
" .pushsection .fixup,\"ax\"\n" \
" .align 2\n" \

1
arch/arm/kernel/ecard.c
View File

@ -242,6 +242,7 @@ static void ecard_init_pgtables(struct mm_struct *mm)
memcpy(dst_pgd, src_pgd, sizeof(pgd_t) * (EASI_SIZE / PGDIR_SIZE));
vma.vm_flags = VM_EXEC;
vma.vm_mm = mm;
flush_tlb_range(&vma, IO_START, IO_START + IO_SIZE);

2
arch/arm/kernel/entry-armv.S
View File

@ -790,7 +790,7 @@ __kuser_cmpxchg64: @ 0xffff0f60
smp_dmb arm
rsbs r0, r3, #0 @ set returned val and C flag
ldmfd sp!, {r4, r5, r6, r7}
bx lr
usr_ret lr
#elif !defined(CONFIG_SMP)

15
arch/arm/kernel/entry-common.S
View File

@ -149,6 +149,11 @@ ENDPROC(ret_from_fork)
#endif
#endif
.macro mcount_adjust_addr rd, rn
bic \rd, \rn, #1 @ clear the Thumb bit if present
sub \rd, \rd, #MCOUNT_INSN_SIZE
.endm
.macro __mcount suffix
mcount_enter
ldr r0, =ftrace_trace_function
@ -173,8 +178,7 @@ ENDPROC(ret_from_fork)
mcount_exit
1: mcount_get_lr r1 @ lr of instrumented func
mov r0, lr @ instrumented function
sub r0, r0, #MCOUNT_INSN_SIZE
mcount_adjust_addr r0, lr @ instrumented function
adr lr, BSYM(2f)
mov pc, r2
2: mcount_exit
@ -184,8 +188,7 @@ ENDPROC(ret_from_fork)
mcount_enter
mcount_get_lr r1 @ lr of instrumented func
mov r0, lr @ instrumented function
sub r0, r0, #MCOUNT_INSN_SIZE
mcount_adjust_addr r0, lr @ instrumented function
.globl ftrace_call\suffix
ftrace_call\suffix:
@ -205,11 +208,11 @@ ftrace_graph_call\suffix:
#ifdef CONFIG_DYNAMIC_FTRACE
@ called from __ftrace_caller, saved in mcount_enter
ldr r1, [sp, #16] @ instrumented routine (func)
mcount_adjust_addr r1, r1
#else
@ called from __mcount, untouched in lr
mov r1, lr @ instrumented routine (func)
mcount_adjust_addr r1, lr @ instrumented routine (func)
#endif
sub r1, r1, #MCOUNT_INSN_SIZE
mov r2, fp @ frame pointer
bl prepare_ftrace_return
mcount_exit

45
arch/arm/kernel/perf_event.c
View File

@ -180,7 +180,7 @@ armpmu_event_set_period(struct perf_event *event,
u64
armpmu_event_update(struct perf_event *event,
struct hw_perf_event *hwc,
int idx, int overflow)
int idx)
{
struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
u64 delta, prev_raw_count, new_raw_count;
@ -193,13 +193,7 @@ again:
new_raw_count) != prev_raw_count)
goto again;
new_raw_count &= armpmu->max_period;
prev_raw_count &= armpmu->max_period;
if (overflow)
delta = armpmu->max_period - prev_raw_count + new_raw_count + 1;
else
delta = new_raw_count - prev_raw_count;
delta = (new_raw_count - prev_raw_count) & armpmu->max_period;
local64_add(delta, &event->count);
local64_sub(delta, &hwc->period_left);
@ -216,7 +210,7 @@ armpmu_read(struct perf_event *event)
if (hwc->idx < 0)
return;
armpmu_event_update(event, hwc, hwc->idx, 0);
armpmu_event_update(event, hwc, hwc->idx);
}
static void
@ -232,7 +226,7 @@ armpmu_stop(struct perf_event *event, int flags)
if (!(hwc->state & PERF_HES_STOPPED)) {
armpmu->disable(hwc, hwc->idx);
barrier(); /* why? */
armpmu_event_update(event, hwc, hwc->idx, 0);
armpmu_event_update(event, hwc, hwc->idx);
hwc->state |= PERF_HES_STOPPED | PERF_HES_UPTODATE;
}
}
@ -518,7 +512,13 @@ __hw_perf_event_init(struct perf_event *event)
hwc->config_base |= (unsigned long)mapping;
if (!hwc->sample_period) {
hwc->sample_period = armpmu->max_period;
/*
* For non-sampling runs, limit the sample_period to half
* of the counter width. That way, the new counter value
* is far less likely to overtake the previous one unless
* you have some serious IRQ latency issues.
*/
hwc->sample_period = armpmu->max_period >> 1;
hwc->last_period = hwc->sample_period;
local64_set(&hwc->period_left, hwc->sample_period);
}
@ -679,6 +679,28 @@ static void __init cpu_pmu_init(struct arm_pmu *armpmu)
armpmu->type = ARM_PMU_DEVICE_CPU;
}
/*
* PMU hardware loses all context when a CPU goes offline.
* When a CPU is hotplugged back in, since some hardware registers are
* UNKNOWN at reset, the PMU must be explicitly reset to avoid reading
* junk values out of them.
*/
static int __cpuinit pmu_cpu_notify(struct notifier_block *b,
unsigned long action, void *hcpu)
{
if ((action & ~CPU_TASKS_FROZEN) != CPU_STARTING)
return NOTIFY_DONE;
if (cpu_pmu && cpu_pmu->reset)
cpu_pmu->reset(NULL);
return NOTIFY_OK;
}
static struct notifier_block __cpuinitdata pmu_cpu_notifier = {
.notifier_call = pmu_cpu_notify,
};
/*
* CPU PMU identification and registration.
*/
@ -730,6 +752,7 @@ init_hw_perf_events(void)
pr_info("enabled with %s PMU driver, %d counters available\n",
cpu_pmu->name, cpu_pmu->num_events);
cpu_pmu_init(cpu_pmu);
register_cpu_notifier(&pmu_cpu_notifier);
armpmu_register(cpu_pmu, "cpu", PERF_TYPE_RAW);
} else {
pr_info("no hardware support available\n");

22
arch/arm/kernel/perf_event_v6.c
View File

@ -467,23 +467,6 @@ armv6pmu_enable_event(struct hw_perf_event *hwc,
raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
}
static int counter_is_active(unsigned long pmcr, int idx)
{
unsigned long mask = 0;
if (idx == ARMV6_CYCLE_COUNTER)
mask = ARMV6_PMCR_CCOUNT_IEN;
else if (idx == ARMV6_COUNTER0)
mask = ARMV6_PMCR_COUNT0_IEN;
else if (idx == ARMV6_COUNTER1)
mask = ARMV6_PMCR_COUNT1_IEN;
if (mask)
return pmcr & mask;
WARN_ONCE(1, "invalid counter number (%d)\n", idx);
return 0;
}
static irqreturn_t
armv6pmu_handle_irq(int irq_num,
void *dev)
@ -513,7 +496,8 @@ armv6pmu_handle_irq(int irq_num,
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
if (!counter_is_active(pmcr, idx))
/* Ignore if we don't have an event. */
if (!event)
continue;
/*
@ -524,7 +508,7 @@ armv6pmu_handle_irq(int irq_num,
continue;
hwc = &event->hw;
armpmu_event_update(event, hwc, idx, 1);
armpmu_event_update(event, hwc, idx);
data.period = event->hw.last_period;
if (!armpmu_event_set_period(event, hwc, idx))
continue;

39
arch/arm/kernel/perf_event_v7.c
View File

@ -469,6 +469,20 @@ static const unsigned armv7_a5_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
},
[C(NODE)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
},
};
/*
@ -579,6 +593,20 @@ static const unsigned armv7_a15_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
},
[C(NODE)] = {
[C(OP_READ)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
[C(OP_WRITE)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
[C(OP_PREFETCH)] = {
[C(RESULT_ACCESS)] = CACHE_OP_UNSUPPORTED,
[C(RESULT_MISS)] = CACHE_OP_UNSUPPORTED,
},
},
};
/*
@ -781,6 +809,11 @@ static inline int armv7_pmnc_disable_intens(int idx)
counter = ARMV7_IDX_TO_COUNTER(idx);
asm volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (BIT(counter)));
isb();
/* Clear the overflow flag in case an interrupt is pending. */
asm volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (BIT(counter)));
isb();
return idx;
}
@ -927,6 +960,10 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
/* Ignore if we don't have an event. */
if (!event)
continue;
/*
* We have a single interrupt for all counters. Check that
* each counter has overflowed before we process it.
@ -935,7 +972,7 @@ static irqreturn_t armv7pmu_handle_irq(int irq_num, void *dev)
continue;
hwc = &event->hw;
armpmu_event_update(event, hwc, idx, 1);
armpmu_event_update(event, hwc, idx);
data.period = event->hw.last_period;
if (!armpmu_event_set_period(event, hwc, idx))
continue;

20
arch/arm/kernel/perf_event_xscale.c
View File

@ -255,11 +255,14 @@ xscale1pmu_handle_irq(int irq_num, void *dev)
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
if (!event)
continue;
if (!xscale1_pmnc_counter_has_overflowed(pmnc, idx))
continue;
hwc = &event->hw;
armpmu_event_update(event, hwc, idx, 1);
armpmu_event_update(event, hwc, idx);
data.period = event->hw.last_period;
if (!armpmu_event_set_period(event, hwc, idx))
continue;
@ -592,11 +595,14 @@ xscale2pmu_handle_irq(int irq_num, void *dev)
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
if (!xscale2_pmnc_counter_has_overflowed(pmnc, idx))
if (!event)
continue;
if (!xscale2_pmnc_counter_has_overflowed(of_flags, idx))
continue;
hwc = &event->hw;
armpmu_event_update(event, hwc, idx, 1);
armpmu_event_update(event, hwc, idx);
data.period = event->hw.last_period;
if (!armpmu_event_set_period(event, hwc, idx))
continue;
@ -663,7 +669,7 @@ xscale2pmu_enable_event(struct hw_perf_event *hwc, int idx)
static void
xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
{
unsigned long flags, ien, evtsel;
unsigned long flags, ien, evtsel, of_flags;
struct pmu_hw_events *events = cpu_pmu->get_hw_events();
ien = xscale2pmu_read_int_enable();
@ -672,26 +678,31 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
switch (idx) {
case XSCALE_CYCLE_COUNTER:
ien &= ~XSCALE2_CCOUNT_INT_EN;
of_flags = XSCALE2_CCOUNT_OVERFLOW;
break;
case XSCALE_COUNTER0:
ien &= ~XSCALE2_COUNT0_INT_EN;
evtsel &= ~XSCALE2_COUNT0_EVT_MASK;
evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT0_EVT_SHFT;
of_flags = XSCALE2_COUNT0_OVERFLOW;
break;
case XSCALE_COUNTER1:
ien &= ~XSCALE2_COUNT1_INT_EN;
evtsel &= ~XSCALE2_COUNT1_EVT_MASK;
evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT1_EVT_SHFT;
of_flags = XSCALE2_COUNT1_OVERFLOW;
break;
case XSCALE_COUNTER2:
ien &= ~XSCALE2_COUNT2_INT_EN;
evtsel &= ~XSCALE2_COUNT2_EVT_MASK;
evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT2_EVT_SHFT;
of_flags = XSCALE2_COUNT2_OVERFLOW;
break;
case XSCALE_COUNTER3:
ien &= ~XSCALE2_COUNT3_INT_EN;
evtsel &= ~XSCALE2_COUNT3_EVT_MASK;
evtsel |= XSCALE_PERFCTR_UNUSED << XSCALE2_COUNT3_EVT_SHFT;
of_flags = XSCALE2_COUNT3_OVERFLOW;
break;
default:
WARN_ONCE(1, "invalid counter number (%d)\n", idx);
@ -701,6 +712,7 @@ xscale2pmu_disable_event(struct hw_perf_event *hwc, int idx)
raw_spin_lock_irqsave(&events->pmu_lock, flags);
xscale2pmu_write_event_select(evtsel);
xscale2pmu_write_int_enable(ien);
xscale2pmu_write_overflow_flags(of_flags);
raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
}

17
arch/arm/kernel/ptrace.c
View File

@ -23,6 +23,7 @@
#include <linux/perf_event.h>
#include <linux/hw_breakpoint.h>
#include <linux/regset.h>
#include <linux/audit.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@ -699,10 +700,13 @@ static int vfp_set(struct task_struct *target,
{
int ret;
struct thread_info *thread = task_thread_info(target);
struct vfp_hard_struct new_vfp = thread->vfpstate.hard;
struct vfp_hard_struct new_vfp;
const size_t user_fpregs_offset = offsetof(struct user_vfp, fpregs);
const size_t user_fpscr_offset = offsetof(struct user_vfp, fpscr);
vfp_sync_hwstate(thread);
new_vfp = thread->vfpstate.hard;
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&new_vfp.fpregs,
user_fpregs_offset,
@ -723,9 +727,8 @@ static int vfp_set(struct task_struct *target,
if (ret)
return ret;
vfp_sync_hwstate(thread);
thread->vfpstate.hard = new_vfp;
vfp_flush_hwstate(thread);
thread->vfpstate.hard = new_vfp;
return 0;
}
@ -902,6 +905,12 @@ long arch_ptrace(struct task_struct *child, long request,
return ret;
}
#ifdef __ARMEB__
#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB
#else
#define AUDIT_ARCH_NR AUDIT_ARCH_ARM
#endif
asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
{
unsigned long ip;
@ -916,7 +925,7 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
if (!ip)
audit_syscall_exit(regs);
else
audit_syscall_entry(AUDIT_ARCH_ARMEB, scno, regs->ARM_r0,
audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0,
regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
if (!test_thread_flag(TIF_SYSCALL_TRACE))

17
arch/arm/kernel/setup.c
View File

@ -21,7 +21,6 @@
#include <linux/init.h>
#include <linux/kexec.h>
#include <linux/of_fdt.h>
#include <linux/crash_dump.h>
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/interrupt.h>
@ -160,7 +159,7 @@ static struct resource mem_res[] = {
.flags = IORESOURCE_MEM
},
{
.name = "Kernel text",
.name = "Kernel code",
.start = 0,
.end = 0,
.flags = IORESOURCE_MEM
@ -427,6 +426,20 @@ void cpu_init(void)
: "r14");
}
int __cpu_logical_map[NR_CPUS];
void __init smp_setup_processor_id(void)
{
int i;
u32 cpu = is_smp() ? read_cpuid_mpidr() & 0xff : 0;
cpu_logical_map(0) = cpu;
for (i = 1; i < NR_CPUS; ++i)
cpu_logical_map(i) = i == cpu ? 0 : i;
printk(KERN_INFO "Booting Linux on physical CPU %d\n", cpu);
}
static void __init setup_processor(void)
{
struct proc_info_list *list;

5
arch/arm/kernel/signal.c
View File

@ -227,6 +227,8 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
return -EINVAL;
vfp_flush_hwstate(thread);
/*
* Copy the floating point registers. There can be unused
* registers see asm/hwcap.h for details.
@ -251,9 +253,6 @@ static int restore_vfp_context(struct vfp_sigframe __user *frame)
__get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
__get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
if (!err)
vfp_flush_hwstate(thread);
return err ? -EFAULT : 0;
}

24
arch/arm/kernel/smp.c
View File

@ -233,20 +233,6 @@ void __ref cpu_die(void)
}
#endif /* CONFIG_HOTPLUG_CPU */
int __cpu_logical_map[NR_CPUS];
void __init smp_setup_processor_id(void)
{
int i;
u32 cpu = is_smp() ? read_cpuid_mpidr() & 0xff : 0;
cpu_logical_map(0) = cpu;
for (i = 1; i < NR_CPUS; ++i)
cpu_logical_map(i) = i == cpu ? 0 : i;
printk(KERN_INFO "Booting Linux on physical CPU %d\n", cpu);
}
/*
* Called by both boot and secondaries to move global data into
* per-processor storage.
@ -443,9 +429,7 @@ static DEFINE_PER_CPU(struct clock_event_device, percpu_clockevent);
static void ipi_timer(void)
{
struct clock_event_device *evt = &__get_cpu_var(percpu_clockevent);
irq_enter();
evt->event_handler(evt);
irq_exit();
}
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
@ -548,7 +532,9 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
switch (ipinr) {
case IPI_TIMER:
irq_enter();
ipi_timer();
irq_exit();
break;
case IPI_RESCHEDULE:
@ -556,15 +542,21 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
break;
case IPI_CALL_FUNC:
irq_enter();
generic_smp_call_function_interrupt();
irq_exit();
break;
case IPI_CALL_FUNC_SINGLE:
irq_enter();
generic_smp_call_function_single_interrupt();
irq_exit();
break;
case IPI_CPU_STOP:
irq_enter();
ipi_cpu_stop(cpu);
irq_exit();
break;
default:

4
arch/arm/kernel/smp_twd.c
View File

@ -129,7 +129,7 @@ static struct notifier_block twd_cpufreq_nb = {
static int twd_cpufreq_init(void)
{
if (!IS_ERR(twd_clk))
if (twd_evt && *__this_cpu_ptr(twd_evt) && !IS_ERR(twd_clk))
return cpufreq_register_notifier(&twd_cpufreq_nb,
CPUFREQ_TRANSITION_NOTIFIER);
@ -252,6 +252,8 @@ void __cpuinit twd_timer_setup(struct clock_event_device *clk)
else
twd_calibrate_rate();
__raw_writel(0, twd_base + TWD_TIMER_CONTROL);
clk->name = "local_timer";
clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
CLOCK_EVT_FEAT_C3STOP;

5
arch/arm/kernel/traps.c
View File

@ -266,6 +266,7 @@ void die(const char *str, struct pt_regs *regs, int err)
{
struct thread_info *thread = current_thread_info();
int ret;
enum bug_trap_type bug_type = BUG_TRAP_TYPE_NONE;
oops_enter();
@ -273,7 +274,9 @@ void die(const char *str, struct pt_regs *regs, int err)
console_verbose();
bust_spinlocks(1);
if (!user_mode(regs))
report_bug(regs->ARM_pc, regs);
bug_type = report_bug(regs->ARM_pc, regs);
if (bug_type != BUG_TRAP_TYPE_NONE)
str = "Oops - BUG";
ret = __die(str, err, thread, regs);
if (regs && kexec_should_crash(thread->task))

10
arch/arm/kernel/vmlinux.lds.S
View File

@ -4,11 +4,13 @@
*/
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
#include <asm/memory.h>
#include <asm/page.h>
#define PROC_INFO \
. = ALIGN(4); \
VMLINUX_SYMBOL(__proc_info_begin) = .; \
*(.proc.info.init) \
VMLINUX_SYMBOL(__proc_info_end) = .;
@ -181,7 +183,7 @@ SECTIONS
}
#endif
PERCPU_SECTION(32)
PERCPU_SECTION(L1_CACHE_BYTES)
#ifdef CONFIG_XIP_KERNEL
__data_loc = ALIGN(4); /* location in binary */
@ -212,13 +214,13 @@ SECTIONS
#endif
NOSAVE_DATA
CACHELINE_ALIGNED_DATA(32)
READ_MOSTLY_DATA(32)
CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
READ_MOSTLY_DATA(L1_CACHE_BYTES)
/*
* The exception fixup table (might need resorting at runtime)
*/
. = ALIGN(32);
. = ALIGN(4);
__start___ex_table = .;
#ifdef CONFIG_MMU
*(__ex_table)

12
arch/arm/lib/getuser.S
View File

@ -31,18 +31,18 @@
#include <asm/domain.h>
ENTRY(__get_user_1)
1: T(ldrb) r2, [r0]
1: TUSER(ldrb) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__get_user_1)
ENTRY(__get_user_2)
#ifdef CONFIG_THUMB2_KERNEL
2: T(ldrb) r2, [r0]
3: T(ldrb) r3, [r0, #1]
2: TUSER(ldrb) r2, [r0]
3: TUSER(ldrb) r3, [r0, #1]
#else
2: T(ldrb) r2, [r0], #1
3: T(ldrb) r3, [r0]
2: TUSER(ldrb) r2, [r0], #1
3: TUSER(ldrb) r3, [r0]
#endif
#ifndef __ARMEB__
orr r2, r2, r3, lsl #8
@ -54,7 +54,7 @@ ENTRY(__get_user_2)
ENDPROC(__get_user_2)
ENTRY(__get_user_4)
4: T(ldr) r2, [r0]
4: TUSER(ldr) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__get_user_4)

28
arch/arm/lib/putuser.S
View File

@ -31,7 +31,7 @@
#include <asm/domain.h>
ENTRY(__put_user_1)
1: T(strb) r2, [r0]
1: TUSER(strb) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_1)
@ -40,19 +40,19 @@ ENTRY(__put_user_2)
mov ip, r2, lsr #8
#ifdef CONFIG_THUMB2_KERNEL
#ifndef __ARMEB__
2: T(strb) r2, [r0]
3: T(strb) ip, [r0, #1]
2: TUSER(strb) r2, [r0]
3: TUSER(strb) ip, [r0, #1]
#else
2: T(strb) ip, [r0]
3: T(strb) r2, [r0, #1]
2: TUSER(strb) ip, [r0]
3: TUSER(strb) r2, [r0, #1]
#endif
#else /* !CONFIG_THUMB2_KERNEL */
#ifndef __ARMEB__
2: T(strb) r2, [r0], #1
3: T(strb) ip, [r0]
2: TUSER(strb) r2, [r0], #1
3: TUSER(strb) ip, [r0]
#else
2: T(strb) ip, [r0], #1
3: T(strb) r2, [r0]
2: TUSER(strb) ip, [r0], #1
3: TUSER(strb) r2, [r0]
#endif
#endif /* CONFIG_THUMB2_KERNEL */
mov r0, #0
@ -60,18 +60,18 @@ ENTRY(__put_user_2)
ENDPROC(__put_user_2)
ENTRY(__put_user_4)
4: T(str) r2, [r0]
4: TUSER(str) r2, [r0]
mov r0, #0
mov pc, lr
ENDPROC(__put_user_4)
ENTRY(__put_user_8)
#ifdef CONFIG_THUMB2_KERNEL
5: T(str) r2, [r0]
6: T(str) r3, [r0, #4]
5: TUSER(str) r2, [r0]
6: TUSER(str) r3, [r0, #4]
#else
5: T(str) r2, [r0], #4
6: T(str) r3, [r0]
5: TUSER(str) r2, [r0], #4
6: TUSER(str) r3, [r0]
#endif
mov r0, #0
mov pc, lr

82
arch/arm/lib/uaccess.S
View File

@ -32,11 +32,11 @@
rsb ip, ip, #4
cmp ip, #2
ldrb r3, [r1], #1
USER( T(strb) r3, [r0], #1) @ May fault
USER( TUSER( strb) r3, [r0], #1) @ May fault
ldrgeb r3, [r1], #1
USER( T(strgeb) r3, [r0], #1) @ May fault
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #1
USER( T(strgtb) r3, [r0], #1) @ May fault
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
sub r2, r2, ip
b .Lc2u_dest_aligned
@ -59,7 +59,7 @@ ENTRY(__copy_to_user)
addmi ip, r2, #4
bmi .Lc2u_0nowords
ldr r3, [r1], #4
USER( T(str) r3, [r0], #4) @ May fault
USER( TUSER( str) r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
@ -88,18 +88,18 @@ USER( T(str) r3, [r0], #4) @ May fault
stmneia r0!, {r3 - r4} @ Shouldnt fault
tst ip, #4
ldrne r3, [r1], #4
T(strne) r3, [r0], #4 @ Shouldnt fault
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
beq .Lc2u_0fupi
.Lc2u_0nowords: teq ip, #0
beq .Lc2u_finished
.Lc2u_nowords: cmp ip, #2
ldrb r3, [r1], #1
USER( T(strb) r3, [r0], #1) @ May fault
USER( TUSER( strb) r3, [r0], #1) @ May fault
ldrgeb r3, [r1], #1
USER( T(strgeb) r3, [r0], #1) @ May fault
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #1
USER( T(strgtb) r3, [r0], #1) @ May fault
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
b .Lc2u_finished
.Lc2u_not_enough:
@ -120,7 +120,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault
mov r3, r7, pull #8
ldr r7, [r1], #4
orr r3, r3, r7, push #24
USER( T(str) r3, [r0], #4) @ May fault
USER( TUSER( str) r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
@ -155,18 +155,18 @@ USER( T(str) r3, [r0], #4) @ May fault
movne r3, r7, pull #8
ldrne r7, [r1], #4
orrne r3, r3, r7, push #24
T(strne) r3, [r0], #4 @ Shouldnt fault
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
beq .Lc2u_1fupi
.Lc2u_1nowords: mov r3, r7, get_byte_1
teq ip, #0
beq .Lc2u_finished
cmp ip, #2
USER( T(strb) r3, [r0], #1) @ May fault
USER( TUSER( strb) r3, [r0], #1) @ May fault
movge r3, r7, get_byte_2
USER( T(strgeb) r3, [r0], #1) @ May fault
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
movgt r3, r7, get_byte_3
USER( T(strgtb) r3, [r0], #1) @ May fault
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
b .Lc2u_finished
.Lc2u_2fupi: subs r2, r2, #4
@ -175,7 +175,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault
mov r3, r7, pull #16
ldr r7, [r1], #4
orr r3, r3, r7, push #16
USER( T(str) r3, [r0], #4) @ May fault
USER( TUSER( str) r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
@ -210,18 +210,18 @@ USER( T(str) r3, [r0], #4) @ May fault
movne r3, r7, pull #16
ldrne r7, [r1], #4
orrne r3, r3, r7, push #16
T(strne) r3, [r0], #4 @ Shouldnt fault
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
beq .Lc2u_2fupi
.Lc2u_2nowords: mov r3, r7, get_byte_2
teq ip, #0
beq .Lc2u_finished
cmp ip, #2
USER( T(strb) r3, [r0], #1) @ May fault
USER( TUSER( strb) r3, [r0], #1) @ May fault
movge r3, r7, get_byte_3
USER( T(strgeb) r3, [r0], #1) @ May fault
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #0
USER( T(strgtb) r3, [r0], #1) @ May fault
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
b .Lc2u_finished
.Lc2u_3fupi: subs r2, r2, #4
@ -230,7 +230,7 @@ USER( T(strgtb) r3, [r0], #1) @ May fault
mov r3, r7, pull #24
ldr r7, [r1], #4
orr r3, r3, r7, push #8
USER( T(str) r3, [r0], #4) @ May fault
USER( TUSER( str) r3, [r0], #4) @ May fault
mov ip, r0, lsl #32 - PAGE_SHIFT
rsb ip, ip, #0
movs ip, ip, lsr #32 - PAGE_SHIFT
@ -265,18 +265,18 @@ USER( T(str) r3, [r0], #4) @ May fault
movne r3, r7, pull #24
ldrne r7, [r1], #4
orrne r3, r3, r7, push #8
T(strne) r3, [r0], #4 @ Shouldnt fault
TUSER( strne) r3, [r0], #4 @ Shouldnt fault
ands ip, ip, #3
beq .Lc2u_3fupi
.Lc2u_3nowords: mov r3, r7, get_byte_3
teq ip, #0
beq .Lc2u_finished
cmp ip, #2
USER( T(strb) r3, [r0], #1) @ May fault
USER( TUSER( strb) r3, [r0], #1) @ May fault
ldrgeb r3, [r1], #1
USER( T(strgeb) r3, [r0], #1) @ May fault
USER( TUSER( strgeb) r3, [r0], #1) @ May fault
ldrgtb r3, [r1], #0
USER( T(strgtb) r3, [r0], #1) @ May fault
USER( TUSER( strgtb) r3, [r0], #1) @ May fault
b .Lc2u_finished
ENDPROC(__copy_to_user)
@ -295,11 +295,11 @@ ENDPROC(__copy_to_user)
.Lcfu_dest_not_aligned:
rsb ip, ip, #4
cmp ip, #2
USER( T(ldrb) r3, [r1], #1) @ May fault
USER( TUSER( ldrb) r3, [r1], #1) @ May fault
strb r3, [r0], #1
USER( T(ldrgeb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
strgeb r3, [r0], #1
USER( T(ldrgtb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
sub r2, r2, ip
b .Lcfu_dest_aligned
@ -322,7 +322,7 @@ ENTRY(__copy_from_user)
.Lcfu_0fupi: subs r2, r2, #4
addmi ip, r2, #4
bmi .Lcfu_0nowords
USER( T(ldr) r3, [r1], #4)
USER( TUSER( ldr) r3, [r1], #4)
str r3, [r0], #4
mov ip, r1, lsl #32 - PAGE_SHIFT @ On each page, use a ld/st??t instruction
rsb ip, ip, #0
@ -351,18 +351,18 @@ USER( T(ldr) r3, [r1], #4)
ldmneia r1!, {r3 - r4} @ Shouldnt fault
stmneia r0!, {r3 - r4}
tst ip, #4
T(ldrne) r3, [r1], #4 @ Shouldnt fault
TUSER( ldrne) r3, [r1], #4 @ Shouldnt fault
strne r3, [r0], #4
ands ip, ip, #3
beq .Lcfu_0fupi
.Lcfu_0nowords: teq ip, #0
beq .Lcfu_finished
.Lcfu_nowords: cmp ip, #2
USER( T(ldrb) r3, [r1], #1) @ May fault
USER( TUSER( ldrb) r3, [r1], #1) @ May fault
strb r3, [r0], #1
USER( T(ldrgeb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
strgeb r3, [r0], #1
USER( T(ldrgtb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
b .Lcfu_finished
@ -375,7 +375,7 @@ USER( T(ldrgtb) r3, [r1], #1) @ May fault
.Lcfu_src_not_aligned:
bic r1, r1, #3
USER( T(ldr) r7, [r1], #4) @ May fault
USER( TUSER( ldr) r7, [r1], #4) @ May fault
cmp ip, #2
bgt .Lcfu_3fupi
beq .Lcfu_2fupi
@ -383,7 +383,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault
addmi ip, r2, #4
bmi .Lcfu_1nowords
mov r3, r7, pull #8
USER( T(ldr) r7, [r1], #4) @ May fault
USER( TUSER( ldr) r7, [r1], #4) @ May fault
orr r3, r3, r7, push #24
str r3, [r0], #4
mov ip, r1, lsl #32 - PAGE_SHIFT
@ -418,7 +418,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault
stmneia r0!, {r3 - r4}
tst ip, #4
movne r3, r7, pull #8
USER( T(ldrne) r7, [r1], #4) @ May fault
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #24
strne r3, [r0], #4
ands ip, ip, #3
@ -438,7 +438,7 @@ USER( T(ldrne) r7, [r1], #4) @ May fault
addmi ip, r2, #4
bmi .Lcfu_2nowords
mov r3, r7, pull #16
USER( T(ldr) r7, [r1], #4) @ May fault
USER( TUSER( ldr) r7, [r1], #4) @ May fault
orr r3, r3, r7, push #16
str r3, [r0], #4
mov ip, r1, lsl #32 - PAGE_SHIFT
@ -474,7 +474,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault
stmneia r0!, {r3 - r4}
tst ip, #4
movne r3, r7, pull #16
USER( T(ldrne) r7, [r1], #4) @ May fault
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #16
strne r3, [r0], #4
ands ip, ip, #3
@ -486,7 +486,7 @@ USER( T(ldrne) r7, [r1], #4) @ May fault
strb r3, [r0], #1
movge r3, r7, get_byte_3
strgeb r3, [r0], #1
USER( T(ldrgtb) r3, [r1], #0) @ May fault
USER( TUSER( ldrgtb) r3, [r1], #0) @ May fault
strgtb r3, [r0], #1
b .Lcfu_finished
@ -494,7 +494,7 @@ USER( T(ldrgtb) r3, [r1], #0) @ May fault
addmi ip, r2, #4
bmi .Lcfu_3nowords
mov r3, r7, pull #24
USER( T(ldr) r7, [r1], #4) @ May fault
USER( TUSER( ldr) r7, [r1], #4) @ May fault
orr r3, r3, r7, push #8
str r3, [r0], #4
mov ip, r1, lsl #32 - PAGE_SHIFT
@ -529,7 +529,7 @@ USER( T(ldr) r7, [r1], #4) @ May fault
stmneia r0!, {r3 - r4}
tst ip, #4
movne r3, r7, pull #24
USER( T(ldrne) r7, [r1], #4) @ May fault
USER( TUSER( ldrne) r7, [r1], #4) @ May fault
orrne r3, r3, r7, push #8
strne r3, [r0], #4
ands ip, ip, #3
@ -539,9 +539,9 @@ USER( T(ldrne) r7, [r1], #4) @ May fault
beq .Lcfu_finished
cmp ip, #2
strb r3, [r0], #1
USER( T(ldrgeb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgeb) r3, [r1], #1) @ May fault
strgeb r3, [r0], #1
USER( T(ldrgtb) r3, [r1], #1) @ May fault
USER( TUSER( ldrgtb) r3, [r1], #1) @ May fault
strgtb r3, [r0], #1
b .Lcfu_finished
ENDPROC(__copy_from_user)

14
arch/arm/mach-at91/Kconfig
View File

@ -18,6 +18,12 @@ config HAVE_AT91_USART4
config HAVE_AT91_USART5
bool
config AT91_SAM9_ALT_RESET
bool
config AT91_SAM9G45_RESET
bool
menu "Atmel AT91 System-on-Chip"
choice
@ -39,6 +45,7 @@ config ARCH_AT91SAM9260
select HAVE_AT91_USART4
select HAVE_AT91_USART5
select HAVE_NET_MACB
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9261
bool "AT91SAM9261"
@ -46,6 +53,7 @@ config ARCH_AT91SAM9261
select GENERIC_CLOCKEVENTS
select HAVE_FB_ATMEL
select HAVE_AT91_DBGU0
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9G10
bool "AT91SAM9G10"
@ -53,6 +61,7 @@ config ARCH_AT91SAM9G10
select GENERIC_CLOCKEVENTS
select HAVE_AT91_DBGU0
select HAVE_FB_ATMEL
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9263
bool "AT91SAM9263"
@ -61,6 +70,7 @@ config ARCH_AT91SAM9263
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9RL
bool "AT91SAM9RL"
@ -69,6 +79,7 @@ config ARCH_AT91SAM9RL
select HAVE_AT91_USART3
select HAVE_FB_ATMEL
select HAVE_AT91_DBGU0
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9G20
bool "AT91SAM9G20"
@ -79,6 +90,7 @@ config ARCH_AT91SAM9G20
select HAVE_AT91_USART4
select HAVE_AT91_USART5
select HAVE_NET_MACB
select AT91_SAM9_ALT_RESET
config ARCH_AT91SAM9G45
bool "AT91SAM9G45"
@ -88,6 +100,7 @@ config ARCH_AT91SAM9G45
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
select AT91_SAM9G45_RESET
config ARCH_AT91CAP9
bool "AT91CAP9"
@ -96,6 +109,7 @@ config ARCH_AT91CAP9
select HAVE_FB_ATMEL
select HAVE_NET_MACB
select HAVE_AT91_DBGU1
select AT91_SAM9G45_RESET
config ARCH_AT91X40
bool "AT91x40"

14
arch/arm/mach-at91/Makefile
View File

@ -8,15 +8,17 @@ obj-n :=
obj- :=
obj-$(CONFIG_AT91_PMC_UNIT) += clock.o
obj-$(CONFIG_AT91_SAM9_ALT_RESET) += at91sam9_alt_reset.o
obj-$(CONFIG_AT91_SAM9G45_RESET) += at91sam9g45_reset.o
# CPU-specific support
obj-$(CONFIG_ARCH_AT91RM9200) += at91rm9200.o at91rm9200_time.o at91rm9200_devices.o
obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9261) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9G10) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9G20) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o at91sam9_alt_reset.o
obj-$(CONFIG_ARCH_AT91SAM9260) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9261) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G10) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G20) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G45) += at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91CAP9) += at91cap9.o at91sam926x_time.o at91cap9_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91X40) += at91x40.o at91x40_time.o

9
arch/arm/mach-at91/at91cap9.c
View File

@ -21,7 +21,6 @@
#include <mach/cpu.h>
#include <mach/at91cap9.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include "soc.h"
#include "generic.h"
@ -314,11 +313,6 @@ static struct at91_gpio_bank at91cap9_gpio[] __initdata = {
}
};
static void at91cap9_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
/* --------------------------------------------------------------------
* AT91CAP9 processor initialization
* -------------------------------------------------------------------- */
@ -331,13 +325,14 @@ static void __init at91cap9_map_io(void)
static void __init at91cap9_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91CAP9_BASE_SHDWC);
at91_ioremap_rstc(AT91CAP9_BASE_RSTC);
at91sam926x_ioremap_pit(AT91CAP9_BASE_PIT);
at91sam9_ioremap_smc(0, AT91CAP9_BASE_SMC);
}
static void __init at91cap9_initialize(void)
{
arm_pm_restart = at91cap9_restart;
arm_pm_restart = at91sam9g45_restart;
at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
/* Register GPIO subsystem */

2
arch/arm/mach-at91/at91rm9200_devices.c
View File

@ -83,7 +83,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_AT91
#if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {

1
arch/arm/mach-at91/at91sam9260.c
View File

@ -323,6 +323,7 @@ static void __init at91sam9260_map_io(void)
static void __init at91sam9260_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9260_BASE_SHDWC);
at91_ioremap_rstc(AT91SAM9260_BASE_RSTC);
at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
}

9
arch/arm/mach-at91/at91sam9260_devices.c
View File

@ -84,7 +84,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_AT91
#if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
@ -1215,8 +1215,7 @@ void __init at91_add_device_serial(void) {}
* CF/IDE
* -------------------------------------------------------------------- */
#if defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE) || \
defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
static struct at91_cf_data cf0_data;
@ -1313,10 +1312,8 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
if (data->flags & AT91_CF_TRUE_IDE)
#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
pdev->name = "pata_at91";
#elif defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
pdev->name = "at91_ide";
#else
#warning "board requires AT91_CF_TRUE_IDE: enable either at91_ide or pata_at91"
#warning "board requires AT91_CF_TRUE_IDE: enable pata_at91"
#endif
else
pdev->name = "at91_cf";

1
arch/arm/mach-at91/at91sam9261.c
View File

@ -281,6 +281,7 @@ static void __init at91sam9261_map_io(void)
static void __init at91sam9261_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9261_BASE_SHDWC);
at91_ioremap_rstc(AT91SAM9261_BASE_RSTC);
at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
}

2
arch/arm/mach-at91/at91sam9261_devices.c
View File

@ -87,7 +87,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_AT91
#if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {

1
arch/arm/mach-at91/at91sam9263.c
View File

@ -301,6 +301,7 @@ static void __init at91sam9263_map_io(void)
static void __init at91sam9263_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
at91_ioremap_rstc(AT91SAM9263_BASE_RSTC);
at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);

8
arch/arm/mach-at91/at91sam9263_devices.c
View File

@ -92,7 +92,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
* USB Device (Gadget)
* -------------------------------------------------------------------- */
#ifdef CONFIG_USB_AT91
#if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
static struct at91_udc_data udc_data;
static struct resource udc_resources[] = {
@ -355,8 +355,8 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
* Compact Flash (PCMCIA or IDE)
* -------------------------------------------------------------------- */
#if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE) || \
defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
#if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
static struct at91_cf_data cf0_data;
@ -450,7 +450,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
at91_set_A_periph(AT91_PIN_PD9, 0); /* CFCE2 */
at91_set_A_periph(AT91_PIN_PD14, 0); /* CFNRW */
pdev->name = (data->flags & AT91_CF_TRUE_IDE) ? "at91_ide" : "at91_cf";
pdev->name = (data->flags & AT91_CF_TRUE_IDE) ? "pata_at91" : "at91_cf";
platform_device_register(pdev);
}
#else

7
arch/arm/mach-at91/at91sam9_alt_reset.S
View File

@ -23,7 +23,8 @@
.globl at91sam9_alt_restart
at91sam9_alt_restart: ldr r0, .at91_va_base_sdramc @ preload constants
ldr r1, .at91_va_base_rstc_cr
ldr r1, =at91_rstc_base
ldr r1, [r1]
mov r2, #1
mov r3, #AT91_SDRAMC_LPCB_POWER_DOWN
@ -33,11 +34,9 @@ at91sam9_alt_restart: ldr r0, .at91_va_base_sdramc @ preload constants
str r2, [r0, #AT91_SDRAMC_TR] @ disable SDRAM access
str r3, [r0, #AT91_SDRAMC_LPR] @ power down SDRAM
str r4, [r1] @ reset processor
str r4, [r1, #AT91_RSTC_CR] @ reset processor
b .
.at91_va_base_sdramc:
.word AT91_VA_BASE_SYS + AT91_SDRAMC0
.at91_va_base_rstc_cr:
.word AT91_VA_BASE_SYS + AT91_RSTC_CR

7
arch/arm/mach-at91/at91sam9g45.c
View File

@ -18,7 +18,6 @@
#include <asm/mach/map.h>
#include <mach/at91sam9g45.h>
#include <mach/at91_pmc.h>
#include <mach/at91_rstc.h>
#include <mach/cpu.h>
#include "soc.h"
@ -318,11 +317,6 @@ static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
}
};
static void at91sam9g45_restart(char mode, const char *cmd)
{
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
/* --------------------------------------------------------------------
* AT91SAM9G45 processor initialization
* -------------------------------------------------------------------- */
@ -336,6 +330,7 @@ static void __init at91sam9g45_map_io(void)
static void __init at91sam9g45_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9G45_BASE_SHDWC);
at91_ioremap_rstc(AT91SAM9G45_BASE_RSTC);
at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
}

19
arch/arm/mach-at91/at91sam9g45_devices.c
View File

@ -38,10 +38,6 @@
#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
static u64 hdmac_dmamask = DMA_BIT_MASK(32);
static struct at_dma_platform_data atdma_pdata = {
.nr_channels = 8,
};
static struct resource hdmac_resources[] = {
[0] = {
.start = AT91SAM9G45_BASE_DMA,
@ -56,12 +52,11 @@ static struct resource hdmac_resources[] = {
};
static struct platform_device at_hdmac_device = {
.name = "at_hdmac",
.name = "at91sam9g45_dma",
.id = -1,
.dev = {
.dma_mask = &hdmac_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &atdma_pdata,
},
.resource = hdmac_resources,
.num_resources = ARRAY_SIZE(hdmac_resources),
@ -69,9 +64,15 @@ static struct platform_device at_hdmac_device = {
void __init at91_add_device_hdmac(void)
{
dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
dma_cap_set(DMA_SLAVE, atdma_pdata.cap_mask);
platform_device_register(&at_hdmac_device);
#if defined(CONFIG_OF)
struct device_node *of_node =
of_find_node_by_name(NULL, "dma-controller");
if (of_node)
of_node_put(of_node);
else
#endif
platform_device_register(&at_hdmac_device);
}
#else
void __init at91_add_device_hdmac(void) {}

40
arch/arm/mach-at91/at91sam9g45_reset.S Normal file
View File

@ -0,0 +1,40 @@
/*
* reset AT91SAM9G45 as per errata
*
* Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcosoft.com>
*
* unless the SDRAM is cleanly shutdown before we hit the
* reset register it can be left driving the data bus and
* killing the chance of a subsequent boot from NAND
*
* GPLv2 Only
*/
#include <linux/linkage.h>
#include <mach/hardware.h>
#include <mach/at91sam9_ddrsdr.h>
#include <mach/at91_rstc.h>
.arm
.globl at91sam9g45_restart
at91sam9g45_restart:
ldr r0, .at91_va_base_sdramc0 @ preload constants
ldr r1, =at91_rstc_base
ldr r1, [r1]
mov r2, #1
mov r3, #AT91_DDRSDRC_LPCB_POWER_DOWN
ldr r4, =AT91_RSTC_KEY | AT91_RSTC_PERRST | AT91_RSTC_PROCRST
.balign 32 @ align to cache line
str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access
str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0
str r4, [r1, #AT91_RSTC_CR] @ reset processor
b .
.at91_va_base_sdramc0:
.word AT91_VA_BASE_SYS + AT91_DDRSDRC0

1
arch/arm/mach-at91/at91sam9rl.c
View File

@ -286,6 +286,7 @@ static void __init at91sam9rl_map_io(void)
static void __init at91sam9rl_ioremap_registers(void)
{
at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC);
at91_ioremap_rstc(AT91SAM9RL_BASE_RSTC);
at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
}

8
arch/arm/mach-at91/at91sam9rl_devices.c
View File

@ -33,10 +33,6 @@
#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
static u64 hdmac_dmamask = DMA_BIT_MASK(32);
static struct at_dma_platform_data atdma_pdata = {
.nr_channels = 2,
};
static struct resource hdmac_resources[] = {
[0] = {
.start = AT91SAM9RL_BASE_DMA,
@ -51,12 +47,11 @@ static struct resource hdmac_resources[] = {
};
static struct platform_device at_hdmac_device = {
.name = "at_hdmac",
.name = "at91sam9rl_dma",
.id = -1,
.dev = {
.dma_mask = &hdmac_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &atdma_pdata,
},
.resource = hdmac_resources,
.num_resources = ARRAY_SIZE(hdmac_resources),
@ -64,7 +59,6 @@ static struct platform_device at_hdmac_device = {
void __init at91_add_device_hdmac(void)
{
dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
platform_device_register(&at_hdmac_device);
}
#else

2
arch/arm/mach-at91/generic.h
View File

@ -58,7 +58,9 @@ extern void at91_irq_suspend(void);
extern void at91_irq_resume(void);
/* reset */
extern void at91_ioremap_rstc(u32 base_addr);
extern void at91sam9_alt_restart(char, const char *);
extern void at91sam9g45_restart(char, const char *);
/* shutdown */
extern void at91_ioremap_shdwc(u32 base_addr);

18
arch/arm/mach-at91/include/mach/at91_rstc.h
View File

@ -16,13 +16,25 @@
#ifndef AT91_RSTC_H
#define AT91_RSTC_H
#define AT91_RSTC_CR (AT91_RSTC + 0x00) /* Reset Controller Control Register */
#ifndef __ASSEMBLY__
extern void __iomem *at91_rstc_base;
#define at91_rstc_read(field) \
__raw_readl(at91_rstc_base + field)
#define at91_rstc_write(field, value) \
__raw_writel(value, at91_rstc_base + field);
#else
.extern at91_rstc_base
#endif
#define AT91_RSTC_CR 0x00 /* Reset Controller Control Register */
#define AT91_RSTC_PROCRST (1 << 0) /* Processor Reset */
#define AT91_RSTC_PERRST (1 << 2) /* Peripheral Reset */
#define AT91_RSTC_EXTRST (1 << 3) /* External Reset */
#define AT91_RSTC_KEY (0xa5 << 24) /* KEY Password */
#define AT91_RSTC_SR (AT91_RSTC + 0x04) /* Reset Controller Status Register */
#define AT91_RSTC_SR 0x04 /* Reset Controller Status Register */
#define AT91_RSTC_URSTS (1 << 0) /* User Reset Status */
#define AT91_RSTC_RSTTYP (7 << 8) /* Reset Type */
#define AT91_RSTC_RSTTYP_GENERAL (0 << 8)
@ -33,7 +45,7 @@
#define AT91_RSTC_NRSTL (1 << 16) /* NRST Pin Level */
#define AT91_RSTC_SRCMP (1 << 17) /* Software Reset Command in Progress */
#define AT91_RSTC_MR (AT91_RSTC + 0x08) /* Reset Controller Mode Register */
#define AT91_RSTC_MR 0x08 /* Reset Controller Mode Register */
#define AT91_RSTC_URSTEN (1 << 0) /* User Reset Enable */
#define AT91_RSTC_URSTIEN (1 << 4) /* User Reset Interrupt Enable */
#define AT91_RSTC_ERSTL (0xf << 8) /* External Reset Length */

2
arch/arm/mach-at91/include/mach/at91cap9.h
View File

@ -83,7 +83,6 @@
#define AT91_DDRSDRC0 (0xffffe600 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (cpu_is_at91cap9_revB() ? \
(0xfffffd50 - AT91_BASE_SYS) : \
(0xfffffd60 - AT91_BASE_SYS))
@ -96,6 +95,7 @@
#define AT91CAP9_BASE_PIOB 0xfffff400
#define AT91CAP9_BASE_PIOC 0xfffff600
#define AT91CAP9_BASE_PIOD 0xfffff800
#define AT91CAP9_BASE_RSTC 0xfffffd00
#define AT91CAP9_BASE_SHDWC 0xfffffd10
#define AT91CAP9_BASE_RTT 0xfffffd20
#define AT91CAP9_BASE_PIT 0xfffffd30

108
arch/arm/mach-at91/include/mach/at91cap9_ddrsdr.h
View File

@ -1,108 +0,0 @@
/*
* arch/arm/mach-at91/include/mach/at91cap9_ddrsdr.h
*
* (C) 2008 Andrew Victor
*
* DDR/SDR Controller (DDRSDRC) - System peripherals registers.
* Based on AT91CAP9 datasheet revision B.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef AT91CAP9_DDRSDR_H
#define AT91CAP9_DDRSDR_H
#define AT91_DDRSDRC_MR 0x00 /* Mode Register */
#define AT91_DDRSDRC_MODE (0xf << 0) /* Command Mode */
#define AT91_DDRSDRC_MODE_NORMAL 0
#define AT91_DDRSDRC_MODE_NOP 1
#define AT91_DDRSDRC_MODE_PRECHARGE 2
#define AT91_DDRSDRC_MODE_LMR 3
#define AT91_DDRSDRC_MODE_REFRESH 4
#define AT91_DDRSDRC_MODE_EXT_LMR 5
#define AT91_DDRSDRC_MODE_DEEP 6
#define AT91_DDRSDRC_RTR 0x04 /* Refresh Timer Register */
#define AT91_DDRSDRC_COUNT (0xfff << 0) /* Refresh Timer Counter */
#define AT91_DDRSDRC_CR 0x08 /* Configuration Register */
#define AT91_DDRSDRC_NC (3 << 0) /* Number of Column Bits */
#define AT91_DDRSDRC_NC_SDR8 (0 << 0)
#define AT91_DDRSDRC_NC_SDR9 (1 << 0)
#define AT91_DDRSDRC_NC_SDR10 (2 << 0)
#define AT91_DDRSDRC_NC_SDR11 (3 << 0)
#define AT91_DDRSDRC_NC_DDR9 (0 << 0)
#define AT91_DDRSDRC_NC_DDR10 (1 << 0)
#define AT91_DDRSDRC_NC_DDR11 (2 << 0)
#define AT91_DDRSDRC_NC_DDR12 (3 << 0)
#define AT91_DDRSDRC_NR (3 << 2) /* Number of Row Bits */
#define AT91_DDRSDRC_NR_11 (0 << 2)
#define AT91_DDRSDRC_NR_12 (1 << 2)
#define AT91_DDRSDRC_NR_13 (2 << 2)
#define AT91_DDRSDRC_CAS (7 << 4) /* CAS Latency */
#define AT91_DDRSDRC_CAS_2 (2 << 4)
#define AT91_DDRSDRC_CAS_3 (3 << 4)
#define AT91_DDRSDRC_CAS_25 (6 << 4)
#define AT91_DDRSDRC_DLL (1 << 7) /* Reset DLL */
#define AT91_DDRSDRC_DICDS (1 << 8) /* Output impedance control */
#define AT91_DDRSDRC_T0PR 0x0C /* Timing 0 Register */
#define AT91_DDRSDRC_TRAS (0xf << 0) /* Active to Precharge delay */
#define AT91_DDRSDRC_TRCD (0xf << 4) /* Row to Column delay */
#define AT91_DDRSDRC_TWR (0xf << 8) /* Write recovery delay */
#define AT91_DDRSDRC_TRC (0xf << 12) /* Row cycle delay */
#define AT91_DDRSDRC_TRP (0xf << 16) /* Row precharge delay */
#define AT91_DDRSDRC_TRRD (0xf << 20) /* Active BankA to BankB */
#define AT91_DDRSDRC_TWTR (1 << 24) /* Internal Write to Read delay */
#define AT91_DDRSDRC_TMRD (0xf << 28) /* Load mode to active/refresh delay */
#define AT91_DDRSDRC_T1PR 0x10 /* Timing 1 Register */
#define AT91_DDRSDRC_TRFC (0x1f << 0) /* Row Cycle Delay */
#define AT91_DDRSDRC_TXSNR (0xff << 8) /* Exit self-refresh to non-read */
#define AT91_DDRSDRC_TXSRD (0xff << 16) /* Exit self-refresh to read */
#define AT91_DDRSDRC_TXP (0xf << 24) /* Exit power-down delay */
#define AT91_DDRSDRC_LPR 0x18 /* Low Power Register */
#define AT91_DDRSDRC_LPCB (3 << 0) /* Low-power Configurations */
#define AT91_DDRSDRC_LPCB_DISABLE 0
#define AT91_DDRSDRC_LPCB_SELF_REFRESH 1
#define AT91_DDRSDRC_LPCB_POWER_DOWN 2
#define AT91_DDRSDRC_LPCB_DEEP_POWER_DOWN 3
#define AT91_DDRSDRC_CLKFR (1 << 2) /* Clock Frozen */
#define AT91_DDRSDRC_PASR (7 << 4) /* Partial Array Self Refresh */
#define AT91_DDRSDRC_TCSR (3 << 8) /* Temperature Compensated Self Refresh */
#define AT91_DDRSDRC_DS (3 << 10) /* Drive Strength */
#define AT91_DDRSDRC_TIMEOUT (3 << 12) /* Time to define when Low Power Mode is enabled */
#define AT91_DDRSDRC_TIMEOUT_0_CLK_CYCLES (0 << 12)
#define AT91_DDRSDRC_TIMEOUT_64_CLK_CYCLES (1 << 12)
#define AT91_DDRSDRC_TIMEOUT_128_CLK_CYCLES (2 << 12)
#define AT91_DDRSDRC_MDR 0x1C /* Memory Device Register */
#define AT91_DDRSDRC_MD (3 << 0) /* Memory Device Type */
#define AT91_DDRSDRC_MD_SDR 0
#define AT91_DDRSDRC_MD_LOW_POWER_SDR 1
#define AT91_DDRSDRC_MD_DDR 2
#define AT91_DDRSDRC_MD_LOW_POWER_DDR 3
#define AT91_DDRSDRC_DLLR 0x20 /* DLL Information Register */
#define AT91_DDRSDRC_MDINC (1 << 0) /* Master Delay increment */
#define AT91_DDRSDRC_MDDEC (1 << 1) /* Master Delay decrement */
#define AT91_DDRSDRC_MDOVF (1 << 2) /* Master Delay Overflow */
#define AT91_DDRSDRC_SDCOVF (1 << 3) /* Slave Delay Correction Overflow */
#define AT91_DDRSDRC_SDCUDF (1 << 4) /* Slave Delay Correction Underflow */
#define AT91_DDRSDRC_SDERF (1 << 5) /* Slave Delay Correction error */
#define AT91_DDRSDRC_MDVAL (0xff << 8) /* Master Delay value */
#define AT91_DDRSDRC_SDVAL (0xff << 16) /* Slave Delay value */
#define AT91_DDRSDRC_SDCVAL (0xff << 24) /* Slave Delay Correction value */
/* Register access macros */
#define at91_ramc_read(num, reg) \
at91_sys_read(AT91_DDRSDRC##num + reg)
#define at91_ramc_write(num, reg, value) \
at91_sys_write(AT91_DDRSDRC##num + reg, value)
#endif

2
arch/arm/mach-at91/include/mach/at91sam9260.h
View File

@ -83,7 +83,6 @@
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91SAM9260_BASE_ECC 0xffffe800
@ -92,6 +91,7 @@
#define AT91SAM9260_BASE_PIOA 0xfffff400
#define AT91SAM9260_BASE_PIOB 0xfffff600
#define AT91SAM9260_BASE_PIOC 0xfffff800
#define AT91SAM9260_BASE_RSTC 0xfffffd00
#define AT91SAM9260_BASE_SHDWC 0xfffffd10
#define AT91SAM9260_BASE_RTT 0xfffffd20
#define AT91SAM9260_BASE_PIT 0xfffffd30

2
arch/arm/mach-at91/include/mach/at91sam9261.h
View File

@ -68,7 +68,6 @@
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91SAM9261_BASE_SMC 0xffffec00
@ -76,6 +75,7 @@
#define AT91SAM9261_BASE_PIOA 0xfffff400
#define AT91SAM9261_BASE_PIOB 0xfffff600
#define AT91SAM9261_BASE_PIOC 0xfffff800
#define AT91SAM9261_BASE_RSTC 0xfffffd00
#define AT91SAM9261_BASE_SHDWC 0xfffffd10
#define AT91SAM9261_BASE_RTT 0xfffffd20
#define AT91SAM9261_BASE_PIT 0xfffffd30

2
arch/arm/mach-at91/include/mach/at91sam9263.h
View File

@ -78,7 +78,6 @@
#define AT91_SDRAMC1 (0xffffe800 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffec00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91SAM9263_BASE_ECC0 0xffffe000
@ -91,6 +90,7 @@
#define AT91SAM9263_BASE_PIOC 0xfffff600
#define AT91SAM9263_BASE_PIOD 0xfffff800
#define AT91SAM9263_BASE_PIOE 0xfffffa00
#define AT91SAM9263_BASE_RSTC 0xfffffd00
#define AT91SAM9263_BASE_SHDWC 0xfffffd10
#define AT91SAM9263_BASE_RTT0 0xfffffd20
#define AT91SAM9263_BASE_PIT 0xfffffd30

30
arch/arm/mach-at91/include/mach/at91sam9_ddrsdr.h
View File

@ -46,10 +46,10 @@
#define AT91_DDRSDRC_CAS_25 (6 << 4)
#define AT91_DDRSDRC_RST_DLL (1 << 7) /* Reset DLL */
#define AT91_DDRSDRC_DICDS (1 << 8) /* Output impedance control */
#define AT91_DDRSDRC_DIS_DLL (1 << 9) /* Disable DLL */
#define AT91_DDRSDRC_OCD (1 << 12) /* Off-Chip Driver */
#define AT91_DDRSDRC_DQMS (1 << 16) /* Mask Data is Shared */
#define AT91_DDRSDRC_ACTBST (1 << 18) /* Active Bank X to Burst Stop Read Access Bank Y */
#define AT91_DDRSDRC_DIS_DLL (1 << 9) /* Disable DLL [SAM9 Only] */
#define AT91_DDRSDRC_OCD (1 << 12) /* Off-Chip Driver [SAM9 Only] */
#define AT91_DDRSDRC_DQMS (1 << 16) /* Mask Data is Shared [SAM9 Only] */
#define AT91_DDRSDRC_ACTBST (1 << 18) /* Active Bank X to Burst Stop Read Access Bank Y [SAM9 Only] */
#define AT91_DDRSDRC_T0PR 0x0C /* Timing 0 Register */
#define AT91_DDRSDRC_TRAS (0xf << 0) /* Active to Precharge delay */
@ -59,7 +59,8 @@
#define AT91_DDRSDRC_TRP (0xf << 16) /* Row precharge delay */
#define AT91_DDRSDRC_TRRD (0xf << 20) /* Active BankA to BankB */
#define AT91_DDRSDRC_TWTR (0x7 << 24) /* Internal Write to Read delay */
#define AT91_DDRSDRC_RED_WRRD (0x1 << 27) /* Reduce Write to Read Delay */
#define AT91CAP9_DDRSDRC_TWTR (1 << 24) /* Internal Write to Read delay */
#define AT91_DDRSDRC_RED_WRRD (0x1 << 27) /* Reduce Write to Read Delay [SAM9 Only] */
#define AT91_DDRSDRC_TMRD (0xf << 28) /* Load mode to active/refresh delay */
#define AT91_DDRSDRC_T1PR 0x10 /* Timing 1 Register */
@ -68,13 +69,14 @@
#define AT91_DDRSDRC_TXSRD (0xff << 16) /* Exit self-refresh to read */
#define AT91_DDRSDRC_TXP (0xf << 24) /* Exit power-down delay */
#define AT91_DDRSDRC_T2PR 0x14 /* Timing 2 Register */
#define AT91_DDRSDRC_T2PR 0x14 /* Timing 2 Register [SAM9 Only] */
#define AT91_DDRSDRC_TXARD (0xf << 0) /* Exit active power down delay to read command in mode "Fast Exit" */
#define AT91_DDRSDRC_TXARDS (0xf << 4) /* Exit active power down delay to read command in mode "Slow Exit" */
#define AT91_DDRSDRC_TRPA (0xf << 8) /* Row Precharge All delay */
#define AT91_DDRSDRC_TRTP (0x7 << 12) /* Read to Precharge delay */
#define AT91_DDRSDRC_LPR 0x1C /* Low Power Register */
#define AT91CAP9_DDRSDRC_LPR 0x18 /* Low Power Register */
#define AT91_DDRSDRC_LPCB (3 << 0) /* Low-power Configurations */
#define AT91_DDRSDRC_LPCB_DISABLE 0
#define AT91_DDRSDRC_LPCB_SELF_REFRESH 1
@ -92,32 +94,40 @@
#define AT91_DDRSDRC_UPD_MR (3 << 20) /* Update load mode register and extended mode register */
#define AT91_DDRSDRC_MDR 0x20 /* Memory Device Register */
#define AT91CAP9_DDRSDRC_MDR 0x1C /* Memory Device Register */
#define AT91_DDRSDRC_MD (3 << 0) /* Memory Device Type */
#define AT91_DDRSDRC_MD_SDR 0
#define AT91_DDRSDRC_MD_LOW_POWER_SDR 1
#define AT91CAP9_DDRSDRC_MD_DDR 2
#define AT91_DDRSDRC_MD_LOW_POWER_DDR 3
#define AT91_DDRSDRC_MD_DDR2 6
#define AT91_DDRSDRC_MD_DDR2 6 /* [SAM9 Only] */
#define AT91_DDRSDRC_DBW (1 << 4) /* Data Bus Width */
#define AT91_DDRSDRC_DBW_32BITS (0 << 4)
#define AT91_DDRSDRC_DBW_16BITS (1 << 4)
#define AT91_DDRSDRC_DLL 0x24 /* DLL Information Register */
#define AT91CAP9_DDRSDRC_DLL 0x20 /* DLL Information Register */
#define AT91_DDRSDRC_MDINC (1 << 0) /* Master Delay increment */
#define AT91_DDRSDRC_MDDEC (1 << 1) /* Master Delay decrement */
#define AT91_DDRSDRC_MDOVF (1 << 2) /* Master Delay Overflow */
#define AT91CAP9_DDRSDRC_SDCOVF (1 << 3) /* Slave Delay Correction Overflow */
#define AT91CAP9_DDRSDRC_SDCUDF (1 << 4) /* Slave Delay Correction Underflow */
#define AT91CAP9_DDRSDRC_SDERF (1 << 5) /* Slave Delay Correction error */
#define AT91_DDRSDRC_MDVAL (0xff << 8) /* Master Delay value */
#define AT91CAP9_DDRSDRC_SDVAL (0xff << 16) /* Slave Delay value */
#define AT91CAP9_DDRSDRC_SDCVAL (0xff << 24) /* Slave Delay Correction value */
#define AT91_DDRSDRC_HS 0x2C /* High Speed Register */
#define AT91_DDRSDRC_HS 0x2C /* High Speed Register [SAM9 Only] */
#define AT91_DDRSDRC_DIS_ATCP_RD (1 << 2) /* Anticip read access is disabled */
#define AT91_DDRSDRC_DELAY(n) (0x30 + (0x4 * (n))) /* Delay I/O Register n */
#define AT91_DDRSDRC_WPMR 0xE4 /* Write Protect Mode Register */
#define AT91_DDRSDRC_WPMR 0xE4 /* Write Protect Mode Register [SAM9 Only] */
#define AT91_DDRSDRC_WP (1 << 0) /* Write protect enable */
#define AT91_DDRSDRC_WPKEY (0xffffff << 8) /* Write protect key */
#define AT91_DDRSDRC_KEY (0x444452 << 8) /* Write protect key = "DDR" */
#define AT91_DDRSDRC_WPSR 0xE8 /* Write Protect Status Register */
#define AT91_DDRSDRC_WPSR 0xE8 /* Write Protect Status Register [SAM9 Only] */
#define AT91_DDRSDRC_WPVS (1 << 0) /* Write protect violation status */
#define AT91_DDRSDRC_WPVSRC (0xffff << 8) /* Write protect violation source */

29
arch/arm/mach-at91/include/mach/at91sam9_smc.h
View File

@ -18,6 +18,35 @@
#include <mach/cpu.h>
#ifndef __ASSEMBLY__
struct sam9_smc_config {
/* Setup register */
u8 ncs_read_setup;
u8 nrd_setup;
u8 ncs_write_setup;
u8 nwe_setup;
/* Pulse register */
u8 ncs_read_pulse;
u8 nrd_pulse;
u8 ncs_write_pulse;
u8 nwe_pulse;
/* Cycle register */
u16 read_cycle;
u16 write_cycle;
/* Mode register */
u32 mode;
u8 tdf_cycles:4;
};
extern void sam9_smc_configure(int id, int cs, struct sam9_smc_config *config);
extern void sam9_smc_read(int id, int cs, struct sam9_smc_config *config);
extern void sam9_smc_read_mode(int id, int cs, struct sam9_smc_config *config);
extern void sam9_smc_write_mode(int id, int cs, struct sam9_smc_config *config);
#endif
#define AT91_SMC_SETUP 0x00 /* Setup Register for CS n */
#define AT91_SMC_NWESETUP (0x3f << 0) /* NWE Setup Length */
#define AT91_SMC_NWESETUP_(x) ((x) << 0)

2
arch/arm/mach-at91/include/mach/at91sam9g45.h
View File

@ -90,7 +90,6 @@
#define AT91_DDRSDRC0 (0xffffe600 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffea00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91SAM9G45_BASE_ECC 0xffffe200
@ -102,6 +101,7 @@
#define AT91SAM9G45_BASE_PIOC 0xfffff600
#define AT91SAM9G45_BASE_PIOD 0xfffff800
#define AT91SAM9G45_BASE_PIOE 0xfffffa00
#define AT91SAM9G45_BASE_RSTC 0xfffffd00
#define AT91SAM9G45_BASE_SHDWC 0xfffffd10
#define AT91SAM9G45_BASE_RTT 0xfffffd20
#define AT91SAM9G45_BASE_PIT 0xfffffd30

2
arch/arm/mach-at91/include/mach/at91sam9rl.h
View File

@ -72,7 +72,6 @@
#define AT91_SDRAMC0 (0xffffea00 - AT91_BASE_SYS)
#define AT91_MATRIX (0xffffee00 - AT91_BASE_SYS)
#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS)
#define AT91_RSTC (0xfffffd00 - AT91_BASE_SYS)
#define AT91_SCKCR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
@ -84,6 +83,7 @@
#define AT91SAM9RL_BASE_PIOB 0xfffff600
#define AT91SAM9RL_BASE_PIOC 0xfffff800
#define AT91SAM9RL_BASE_PIOD 0xfffffa00
#define AT91SAM9RL_BASE_RSTC 0xfffffd00
#define AT91SAM9RL_BASE_SHDWC 0xfffffd10
#define AT91SAM9RL_BASE_RTT 0xfffffd20
#define AT91SAM9RL_BASE_PIT 0xfffffd30

2
arch/arm/mach-at91/include/mach/board.h
View File

@ -88,7 +88,7 @@ extern void __init at91_add_device_eth(struct macb_platform_data *data);
struct at91_usbh_data {
u8 ports; /* number of ports on root hub */
int vbus_pin[2]; /* port power-control pin */
u8 vbus_pin_inverted;
u8 vbus_pin_active_low[2];
u8 overcurrent_supported;
int overcurrent_pin[2];
u8 overcurrent_status[2];

9
arch/arm/mach-at91/pm.c
View File

@ -34,7 +34,6 @@
/*
* Show the reason for the previous system reset.
*/
#if defined(AT91_RSTC)
#include <mach/at91_rstc.h>
#include <mach/at91_shdwc.h>
@ -58,10 +57,10 @@ static void __init show_reset_status(void)
char *reason, *r2 = reset;
u32 reset_type, wake_type;
if (!at91_shdwc_base)
if (!at91_shdwc_base || !at91_rstc_base)
return;
reset_type = at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_RSTTYP;
reset_type = at91_rstc_read(AT91_RSTC_SR) & AT91_RSTC_RSTTYP;
wake_type = at91_shdwc_read(AT91_SHDW_SR);
switch (reset_type) {
@ -102,10 +101,6 @@ static void __init show_reset_status(void)
}
pr_info("AT91: Starting after %s %s\n", reason, r2);
}
#else
static void __init show_reset_status(void) {}
#endif
static int at91_pm_valid_state(suspend_state_t state)
{

8
arch/arm/mach-at91/pm.h
View File

@ -25,21 +25,21 @@ static inline u32 sdram_selfrefresh_enable(void)
: : "r" (0))
#elif defined(CONFIG_ARCH_AT91CAP9)
#include <mach/at91cap9_ddrsdr.h>
#include <mach/at91sam9_ddrsdr.h>
static inline u32 sdram_selfrefresh_enable(void)
{
u32 saved_lpr, lpr;
saved_lpr = at91_ramc_read(0, AT91_DDRSDRC_LPR);
saved_lpr = at91_ramc_read(0, AT91CAP9_DDRSDRC_LPR);
lpr = saved_lpr & ~AT91_DDRSDRC_LPCB;
at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr | AT91_DDRSDRC_LPCB_SELF_REFRESH);
at91_ramc_write(0, AT91CAP9_DDRSDRC_LPR, lpr | AT91_DDRSDRC_LPCB_SELF_REFRESH);
return saved_lpr;
}
#define sdram_selfrefresh_disable(saved_lpr) at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr)
#define sdram_selfrefresh_disable(saved_lpr) at91_ramc_write(0, AT91CAP9_DDRSDRC_LPR, saved_lpr)
#define wait_for_interrupt_enable() cpu_do_idle()
#elif defined(CONFIG_ARCH_AT91SAM9G45)

5
arch/arm/mach-at91/pm_slowclock.S
View File

@ -18,9 +18,8 @@
#if defined(CONFIG_ARCH_AT91RM9200)
#include <mach/at91rm9200_mc.h>
#elif defined(CONFIG_ARCH_AT91CAP9)
#include <mach/at91cap9_ddrsdr.h>
#elif defined(CONFIG_ARCH_AT91SAM9G45)
#elif defined(CONFIG_ARCH_AT91CAP9) \
|| defined(CONFIG_ARCH_AT91SAM9G45)
#include <mach/at91sam9_ddrsdr.h>
#else
#include <mach/at91sam9_sdramc.h>

76
arch/arm/mach-at91/sam9_smc.c
View File

@ -2,6 +2,7 @@
* linux/arch/arm/mach-at91/sam9_smc.c
*
* Copyright (C) 2008 Andrew Victor
* Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -22,7 +23,22 @@
static void __iomem *smc_base_addr[2];
static void __init sam9_smc_cs_configure(void __iomem *base, struct sam9_smc_config* config)
static void sam9_smc_cs_write_mode(void __iomem *base,
struct sam9_smc_config *config)
{
__raw_writel(config->mode
| AT91_SMC_TDF_(config->tdf_cycles),
base + AT91_SMC_MODE);
}
void sam9_smc_write_mode(int id, int cs,
struct sam9_smc_config *config)
{
sam9_smc_cs_write_mode(AT91_SMC_CS(id, cs), config);
}
static void sam9_smc_cs_configure(void __iomem *base,
struct sam9_smc_config *config)
{
/* Setup register */
@ -45,16 +61,66 @@ static void __init sam9_smc_cs_configure(void __iomem *base, struct sam9_smc_con
base + AT91_SMC_CYCLE);
/* Mode register */
__raw_writel(config->mode
| AT91_SMC_TDF_(config->tdf_cycles),
base + AT91_SMC_MODE);
sam9_smc_cs_write_mode(base, config);
}
void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config)
void sam9_smc_configure(int id, int cs,
struct sam9_smc_config *config)
{
sam9_smc_cs_configure(AT91_SMC_CS(id, cs), config);
}
static void sam9_smc_cs_read_mode(void __iomem *base,
struct sam9_smc_config *config)
{
u32 val = __raw_readl(base + AT91_SMC_MODE);
config->mode = (val & ~AT91_SMC_NWECYCLE);
config->tdf_cycles = (val & AT91_SMC_NWECYCLE) >> 16 ;
}
void sam9_smc_read_mode(int id, int cs,
struct sam9_smc_config *config)
{
sam9_smc_cs_read_mode(AT91_SMC_CS(id, cs), config);
}
static void sam9_smc_cs_read(void __iomem *base,
struct sam9_smc_config *config)
{
u32 val;
/* Setup register */
val = __raw_readl(base + AT91_SMC_SETUP);
config->nwe_setup = val & AT91_SMC_NWESETUP;
config->ncs_write_setup = (val & AT91_SMC_NCS_WRSETUP) >> 8;
config->nrd_setup = (val & AT91_SMC_NRDSETUP) >> 16;
config->ncs_read_setup = (val & AT91_SMC_NCS_RDSETUP) >> 24;
/* Pulse register */
val = __raw_readl(base + AT91_SMC_PULSE);
config->nwe_setup = val & AT91_SMC_NWEPULSE;
config->ncs_write_pulse = (val & AT91_SMC_NCS_WRPULSE) >> 8;
config->nrd_pulse = (val & AT91_SMC_NRDPULSE) >> 16;
config->ncs_read_pulse = (val & AT91_SMC_NCS_RDPULSE) >> 24;
/* Cycle register */
val = __raw_readl(base + AT91_SMC_CYCLE);
config->write_cycle = val & AT91_SMC_NWECYCLE;
config->read_cycle = (val & AT91_SMC_NRDCYCLE) >> 16;
/* Mode register */
sam9_smc_cs_read_mode(base, config);
}
void sam9_smc_read(int id, int cs, struct sam9_smc_config *config)
{
sam9_smc_cs_read(AT91_SMC_CS(id, cs), config);
}
void __init at91sam9_ioremap_smc(int id, u32 addr)
{
if (id > 1) {

23
arch/arm/mach-at91/sam9_smc.h
View File

@ -8,27 +8,4 @@
* published by the Free Software Foundation.
*/
struct sam9_smc_config {
/* Setup register */
u8 ncs_read_setup;
u8 nrd_setup;
u8 ncs_write_setup;
u8 nwe_setup;
/* Pulse register */
u8 ncs_read_pulse;
u8 nrd_pulse;
u8 ncs_write_pulse;
u8 nwe_pulse;
/* Cycle register */
u16 read_cycle;
u16 write_cycle;
/* Mode register */
u32 mode;
u8 tdf_cycles:4;
};
extern void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config);
extern void __init at91sam9_ioremap_smc(int id, u32 addr);

16
arch/arm/mach-at91/setup.c
View File

@ -29,9 +29,12 @@ EXPORT_SYMBOL(at91_soc_initdata);
void __init at91rm9200_set_type(int type)
{
if (type == ARCH_REVISON_9200_PQFP)
at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
else
at91_soc_initdata.subtype = AT91_SOC_RM9200_PQFP;
else
at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
pr_info("AT91: filled in soc subtype: %s\n",
at91_get_soc_subtype(&at91_soc_initdata));
}
void __init at91_init_irq_default(void)
@ -281,6 +284,15 @@ void __init at91_ioremap_shdwc(u32 base_addr)
pm_power_off = at91sam9_poweroff;
}
void __iomem *at91_rstc_base;
void __init at91_ioremap_rstc(u32 base_addr)
{
at91_rstc_base = ioremap(base_addr, 16);
if (!at91_rstc_base)
panic("Impossible to ioremap at91_rstc_base\n");
}
void __init at91_initialize(unsigned long main_clock)
{
at91_boot_soc.ioremap_registers();

2
arch/arm/mach-bcmring/arch.c
View File

@ -194,6 +194,6 @@ MACHINE_START(BCMRING, "BCMRING")
.init_early = bcmring_init_early,
.init_irq = bcmring_init_irq,
.timer = &bcmring_timer,
.init_machine = bcmring_init_machine
.init_machine = bcmring_init_machine,
.restart = bcmring_restart,
MACHINE_END

812
arch/arm/mach-bcmring/dma.c
View File

@ -33,17 +33,11 @@
#include <mach/timer.h>
#include <linux/mm.h>
#include <linux/pfn.h>
#include <linux/atomic.h>
#include <linux/sched.h>
#include <mach/dma.h>
/* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */
/* especially since dc4 doesn't use kmalloc'd memory. */
#define ALLOW_MAP_OF_KMALLOC_MEMORY 0
/* ---- Public Variables ------------------------------------------------- */
/* ---- Private Constants and Types -------------------------------------- */
@ -53,58 +47,18 @@
#define CONTROLLER_FROM_HANDLE(handle) (((handle) >> 4) & 0x0f)
#define CHANNEL_FROM_HANDLE(handle) ((handle) & 0x0f)
#define DMA_MAP_DEBUG 0
#if DMA_MAP_DEBUG
# define DMA_MAP_PRINT(fmt, args...) printk("%s: " fmt, __func__, ## args)
#else
# define DMA_MAP_PRINT(fmt, args...)
#endif
/* ---- Private Variables ------------------------------------------------ */
static DMA_Global_t gDMA;
static struct proc_dir_entry *gDmaDir;
static atomic_t gDmaStatMemTypeKmalloc = ATOMIC_INIT(0);
static atomic_t gDmaStatMemTypeVmalloc = ATOMIC_INIT(0);
static atomic_t gDmaStatMemTypeUser = ATOMIC_INIT(0);
static atomic_t gDmaStatMemTypeCoherent = ATOMIC_INIT(0);
#include "dma_device.c"
/* ---- Private Function Prototypes -------------------------------------- */
/* ---- Functions ------------------------------------------------------- */
/****************************************************************************/
/**
* Displays information for /proc/dma/mem-type
*/
/****************************************************************************/
static int dma_proc_read_mem_type(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int len = 0;
len += sprintf(buf + len, "dma_map_mem statistics\n");
len +=
sprintf(buf + len, "coherent: %d\n",
atomic_read(&gDmaStatMemTypeCoherent));
len +=
sprintf(buf + len, "kmalloc: %d\n",
atomic_read(&gDmaStatMemTypeKmalloc));
len +=
sprintf(buf + len, "vmalloc: %d\n",
atomic_read(&gDmaStatMemTypeVmalloc));
len +=
sprintf(buf + len, "user: %d\n",
atomic_read(&gDmaStatMemTypeUser));
return len;
}
/****************************************************************************/
/**
* Displays information for /proc/dma/channels
@ -846,8 +800,6 @@ int dma_init(void)
dma_proc_read_channels, NULL);
create_proc_read_entry("devices", 0, gDmaDir,
dma_proc_read_devices, NULL);
create_proc_read_entry("mem-type", 0, gDmaDir,
dma_proc_read_mem_type, NULL);
}
out:
@ -1565,767 +1517,3 @@ int dma_set_device_handler(DMA_Device_t dev, /* Device to set the callback for.
}
EXPORT_SYMBOL(dma_set_device_handler);
/****************************************************************************/
/**
* Initializes a memory mapping structure
*/
/****************************************************************************/
int dma_init_mem_map(DMA_MemMap_t *memMap)
{
memset(memMap, 0, sizeof(*memMap));
sema_init(&memMap->lock, 1);
return 0;
}
EXPORT_SYMBOL(dma_init_mem_map);
/****************************************************************************/
/**
* Releases any memory currently being held by a memory mapping structure.
*/
/****************************************************************************/
int dma_term_mem_map(DMA_MemMap_t *memMap)
{
down(&memMap->lock); /* Just being paranoid */
/* Free up any allocated memory */
up(&memMap->lock);
memset(memMap, 0, sizeof(*memMap));
return 0;
}
EXPORT_SYMBOL(dma_term_mem_map);
/****************************************************************************/
/**
* Looks at a memory address and categorizes it.
*
* @return One of the values from the DMA_MemType_t enumeration.
*/
/****************************************************************************/
DMA_MemType_t dma_mem_type(void *addr)
{
unsigned long addrVal = (unsigned long)addr;
if (addrVal >= CONSISTENT_BASE) {
/* NOTE: DMA virtual memory space starts at 0xFFxxxxxx */
/* dma_alloc_xxx pages are physically and virtually contiguous */
return DMA_MEM_TYPE_DMA;
}
/* Technically, we could add one more classification. Addresses between VMALLOC_END */
/* and the beginning of the DMA virtual address could be considered to be I/O space. */
/* Right now, nobody cares about this particular classification, so we ignore it. */
if (is_vmalloc_addr(addr)) {
/* Address comes from the vmalloc'd region. Pages are virtually */
/* contiguous but NOT physically contiguous */
return DMA_MEM_TYPE_VMALLOC;
}
if (addrVal >= PAGE_OFFSET) {
/* PAGE_OFFSET is typically 0xC0000000 */
/* kmalloc'd pages are physically contiguous */
return DMA_MEM_TYPE_KMALLOC;
}
return DMA_MEM_TYPE_USER;
}
EXPORT_SYMBOL(dma_mem_type);
/****************************************************************************/
/**
* Looks at a memory address and determines if we support DMA'ing to/from
* that type of memory.
*
* @return boolean -
* return value != 0 means dma supported
* return value == 0 means dma not supported
*/
/****************************************************************************/
int dma_mem_supports_dma(void *addr)
{
DMA_MemType_t memType = dma_mem_type(addr);
return (memType == DMA_MEM_TYPE_DMA)
#if ALLOW_MAP_OF_KMALLOC_MEMORY
|| (memType == DMA_MEM_TYPE_KMALLOC)
#endif
|| (memType == DMA_MEM_TYPE_USER);
}
EXPORT_SYMBOL(dma_mem_supports_dma);
/****************************************************************************/
/**
* Maps in a memory region such that it can be used for performing a DMA.
*
* @return
*/
/****************************************************************************/
int dma_map_start(DMA_MemMap_t *memMap, /* Stores state information about the map */
enum dma_data_direction dir /* Direction that the mapping will be going */
) {
int rc;
down(&memMap->lock);
DMA_MAP_PRINT("memMap: %p\n", memMap);
if (memMap->inUse) {
printk(KERN_ERR "%s: memory map %p is already being used\n",
__func__, memMap);
rc = -EBUSY;
goto out;
}
memMap->inUse = 1;
memMap->dir = dir;
memMap->numRegionsUsed = 0;
rc = 0;
out:
DMA_MAP_PRINT("returning %d", rc);
up(&memMap->lock);
return rc;
}
EXPORT_SYMBOL(dma_map_start);
/****************************************************************************/
/**
* Adds a segment of memory to a memory map. Each segment is both
* physically and virtually contiguous.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
static int dma_map_add_segment(DMA_MemMap_t *memMap, /* Stores state information about the map */
DMA_Region_t *region, /* Region that the segment belongs to */
void *virtAddr, /* Virtual address of the segment being added */
dma_addr_t physAddr, /* Physical address of the segment being added */
size_t numBytes /* Number of bytes of the segment being added */
) {
DMA_Segment_t *segment;
DMA_MAP_PRINT("memMap:%p va:%p pa:0x%x #:%d\n", memMap, virtAddr,
physAddr, numBytes);
/* Sanity check */
if (((unsigned long)virtAddr < (unsigned long)region->virtAddr)
|| (((unsigned long)virtAddr + numBytes)) >
((unsigned long)region->virtAddr + region->numBytes)) {
printk(KERN_ERR
"%s: virtAddr %p is outside region @ %p len: %d\n",
__func__, virtAddr, region->virtAddr, region->numBytes);
return -EINVAL;
}
if (region->numSegmentsUsed > 0) {
/* Check to see if this segment is physically contiguous with the previous one */
segment = &region->segment[region->numSegmentsUsed - 1];
if ((segment->physAddr + segment->numBytes) == physAddr) {
/* It is - just add on to the end */
DMA_MAP_PRINT("appending %d bytes to last segment\n",
numBytes);
segment->numBytes += numBytes;
return 0;
}
}
/* Reallocate to hold more segments, if required. */
if (region->numSegmentsUsed >= region->numSegmentsAllocated) {
DMA_Segment_t *newSegment;
size_t oldSize =
region->numSegmentsAllocated * sizeof(*newSegment);
int newAlloc = region->numSegmentsAllocated + 4;
size_t newSize = newAlloc * sizeof(*newSegment);
newSegment = kmalloc(newSize, GFP_KERNEL);
if (newSegment == NULL) {
return -ENOMEM;
}
memcpy(newSegment, region->segment, oldSize);
memset(&((uint8_t *) newSegment)[oldSize], 0,
newSize - oldSize);
kfree(region->segment);
region->numSegmentsAllocated = newAlloc;
region->segment = newSegment;
}
segment = &region->segment[region->numSegmentsUsed];
region->numSegmentsUsed++;
segment->virtAddr = virtAddr;
segment->physAddr = physAddr;
segment->numBytes = numBytes;
DMA_MAP_PRINT("returning success\n");
return 0;
}
/****************************************************************************/
/**
* Adds a region of memory to a memory map. Each region is virtually
* contiguous, but not necessarily physically contiguous.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
int dma_map_add_region(DMA_MemMap_t *memMap, /* Stores state information about the map */
void *mem, /* Virtual address that we want to get a map of */
size_t numBytes /* Number of bytes being mapped */
) {
unsigned long addr = (unsigned long)mem;
unsigned int offset;
int rc = 0;
DMA_Region_t *region;
dma_addr_t physAddr;
down(&memMap->lock);
DMA_MAP_PRINT("memMap:%p va:%p #:%d\n", memMap, mem, numBytes);
if (!memMap->inUse) {
printk(KERN_ERR "%s: Make sure you call dma_map_start first\n",
__func__);
rc = -EINVAL;
goto out;
}
/* Reallocate to hold more regions. */
if (memMap->numRegionsUsed >= memMap->numRegionsAllocated) {
DMA_Region_t *newRegion;
size_t oldSize =
memMap->numRegionsAllocated * sizeof(*newRegion);
int newAlloc = memMap->numRegionsAllocated + 4;
size_t newSize = newAlloc * sizeof(*newRegion);
newRegion = kmalloc(newSize, GFP_KERNEL);
if (newRegion == NULL) {
rc = -ENOMEM;
goto out;
}
memcpy(newRegion, memMap->region, oldSize);
memset(&((uint8_t *) newRegion)[oldSize], 0, newSize - oldSize);
kfree(memMap->region);
memMap->numRegionsAllocated = newAlloc;
memMap->region = newRegion;
}
region = &memMap->region[memMap->numRegionsUsed];
memMap->numRegionsUsed++;
offset = addr & ~PAGE_MASK;
region->memType = dma_mem_type(mem);
region->virtAddr = mem;
region->numBytes = numBytes;
region->numSegmentsUsed = 0;
region->numLockedPages = 0;
region->lockedPages = NULL;
switch (region->memType) {
case DMA_MEM_TYPE_VMALLOC:
{
atomic_inc(&gDmaStatMemTypeVmalloc);
/* printk(KERN_ERR "%s: vmalloc'd pages are not supported\n", __func__); */
/* vmalloc'd pages are not physically contiguous */
rc = -EINVAL;
break;
}
case DMA_MEM_TYPE_KMALLOC:
{
atomic_inc(&gDmaStatMemTypeKmalloc);
/* kmalloc'd pages are physically contiguous, so they'll have exactly */
/* one segment */
#if ALLOW_MAP_OF_KMALLOC_MEMORY
physAddr =
dma_map_single(NULL, mem, numBytes, memMap->dir);
rc = dma_map_add_segment(memMap, region, mem, physAddr,
numBytes);
#else
rc = -EINVAL;
#endif
break;
}
case DMA_MEM_TYPE_DMA:
{
/* dma_alloc_xxx pages are physically contiguous */
atomic_inc(&gDmaStatMemTypeCoherent);
physAddr = (vmalloc_to_pfn(mem) << PAGE_SHIFT) + offset;
dma_sync_single_for_cpu(NULL, physAddr, numBytes,
memMap->dir);
rc = dma_map_add_segment(memMap, region, mem, physAddr,
numBytes);
break;
}
case DMA_MEM_TYPE_USER:
{
size_t firstPageOffset;
size_t firstPageSize;
struct page **pages;
struct task_struct *userTask;
atomic_inc(&gDmaStatMemTypeUser);
#if 1
/* If the pages are user pages, then the dma_mem_map_set_user_task function */
/* must have been previously called. */
if (memMap->userTask == NULL) {
printk(KERN_ERR
"%s: must call dma_mem_map_set_user_task when using user-mode memory\n",
__func__);
return -EINVAL;
}
/* User pages need to be locked. */
firstPageOffset =
(unsigned long)region->virtAddr & (PAGE_SIZE - 1);
firstPageSize = PAGE_SIZE - firstPageOffset;
region->numLockedPages = (firstPageOffset
+ region->numBytes +
PAGE_SIZE - 1) / PAGE_SIZE;
pages =
kmalloc(region->numLockedPages *
sizeof(struct page *), GFP_KERNEL);
if (pages == NULL) {
region->numLockedPages = 0;
return -ENOMEM;
}
userTask = memMap->userTask;
down_read(&userTask->mm->mmap_sem);
rc = get_user_pages(userTask, /* task */
userTask->mm, /* mm */
(unsigned long)region->virtAddr, /* start */
region->numLockedPages, /* len */
memMap->dir == DMA_FROM_DEVICE, /* write */
0, /* force */
pages, /* pages (array of pointers to page) */
NULL); /* vmas */
up_read(&userTask->mm->mmap_sem);
if (rc != region->numLockedPages) {
kfree(pages);
region->numLockedPages = 0;
if (rc >= 0) {
rc = -EINVAL;
}
} else {
uint8_t *virtAddr = region->virtAddr;
size_t bytesRemaining;
int pageIdx;
rc = 0; /* Since get_user_pages returns +ve number */
region->lockedPages = pages;
/* We've locked the user pages. Now we need to walk them and figure */
/* out the physical addresses. */
/* The first page may be partial */
dma_map_add_segment(memMap,
region,
virtAddr,
PFN_PHYS(page_to_pfn
(pages[0])) +
firstPageOffset,
firstPageSize);
virtAddr += firstPageSize;
bytesRemaining =
region->numBytes - firstPageSize;
for (pageIdx = 1;
pageIdx < region->numLockedPages;
pageIdx++) {
size_t bytesThisPage =
(bytesRemaining >
PAGE_SIZE ? PAGE_SIZE :
bytesRemaining);
DMA_MAP_PRINT
("pageIdx:%d pages[pageIdx]=%p pfn=%u phys=%u\n",
pageIdx, pages[pageIdx],
page_to_pfn(pages[pageIdx]),
PFN_PHYS(page_to_pfn
(pages[pageIdx])));
dma_map_add_segment(memMap,
region,
virtAddr,
PFN_PHYS(page_to_pfn
(pages
[pageIdx])),
bytesThisPage);
virtAddr += bytesThisPage;
bytesRemaining -= bytesThisPage;
}
}
#else
printk(KERN_ERR
"%s: User mode pages are not yet supported\n",
__func__);
/* user pages are not physically contiguous */
rc = -EINVAL;
#endif
break;
}
default:
{
printk(KERN_ERR "%s: Unsupported memory type: %d\n",
__func__, region->memType);
rc = -EINVAL;
break;
}
}
if (rc != 0) {
memMap->numRegionsUsed--;
}
out:
DMA_MAP_PRINT("returning %d\n", rc);
up(&memMap->lock);
return rc;
}
EXPORT_SYMBOL(dma_map_add_segment);
/****************************************************************************/
/**
* Maps in a memory region such that it can be used for performing a DMA.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
int dma_map_mem(DMA_MemMap_t *memMap, /* Stores state information about the map */
void *mem, /* Virtual address that we want to get a map of */
size_t numBytes, /* Number of bytes being mapped */
enum dma_data_direction dir /* Direction that the mapping will be going */
) {
int rc;
rc = dma_map_start(memMap, dir);
if (rc == 0) {
rc = dma_map_add_region(memMap, mem, numBytes);
if (rc < 0) {
/* Since the add fails, this function will fail, and the caller won't */
/* call unmap, so we need to do it here. */
dma_unmap(memMap, 0);
}
}
return rc;
}
EXPORT_SYMBOL(dma_map_mem);
/****************************************************************************/
/**
* Setup a descriptor ring for a given memory map.
*
* It is assumed that the descriptor ring has already been initialized, and
* this routine will only reallocate a new descriptor ring if the existing
* one is too small.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
int dma_map_create_descriptor_ring(DMA_Device_t dev, /* DMA device (where the ring is stored) */
DMA_MemMap_t *memMap, /* Memory map that will be used */
dma_addr_t devPhysAddr /* Physical address of device */
) {
int rc;
int numDescriptors;
DMA_DeviceAttribute_t *devAttr;
DMA_Region_t *region;
DMA_Segment_t *segment;
dma_addr_t srcPhysAddr;
dma_addr_t dstPhysAddr;
int regionIdx;
int segmentIdx;
devAttr = &DMA_gDeviceAttribute[dev];
down(&memMap->lock);
/* Figure out how many descriptors we need */
numDescriptors = 0;
for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
region = &memMap->region[regionIdx];
for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
segmentIdx++) {
segment = &region->segment[segmentIdx];
if (memMap->dir == DMA_TO_DEVICE) {
srcPhysAddr = segment->physAddr;
dstPhysAddr = devPhysAddr;
} else {
srcPhysAddr = devPhysAddr;
dstPhysAddr = segment->physAddr;
}
rc =
dma_calculate_descriptor_count(dev, srcPhysAddr,
dstPhysAddr,
segment->
numBytes);
if (rc < 0) {
printk(KERN_ERR
"%s: dma_calculate_descriptor_count failed: %d\n",
__func__, rc);
goto out;
}
numDescriptors += rc;
}
}
/* Adjust the size of the ring, if it isn't big enough */
if (numDescriptors > devAttr->ring.descriptorsAllocated) {
dma_free_descriptor_ring(&devAttr->ring);
rc =
dma_alloc_descriptor_ring(&devAttr->ring,
numDescriptors);
if (rc < 0) {
printk(KERN_ERR
"%s: dma_alloc_descriptor_ring failed: %d\n",
__func__, rc);
goto out;
}
} else {
rc =
dma_init_descriptor_ring(&devAttr->ring,
numDescriptors);
if (rc < 0) {
printk(KERN_ERR
"%s: dma_init_descriptor_ring failed: %d\n",
__func__, rc);
goto out;
}
}
/* Populate the descriptors */
for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
region = &memMap->region[regionIdx];
for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
segmentIdx++) {
segment = &region->segment[segmentIdx];
if (memMap->dir == DMA_TO_DEVICE) {
srcPhysAddr = segment->physAddr;
dstPhysAddr = devPhysAddr;
} else {
srcPhysAddr = devPhysAddr;
dstPhysAddr = segment->physAddr;
}
rc =
dma_add_descriptors(&devAttr->ring, dev,
srcPhysAddr, dstPhysAddr,
segment->numBytes);
if (rc < 0) {
printk(KERN_ERR
"%s: dma_add_descriptors failed: %d\n",
__func__, rc);
goto out;
}
}
}
rc = 0;
out:
up(&memMap->lock);
return rc;
}
EXPORT_SYMBOL(dma_map_create_descriptor_ring);
/****************************************************************************/
/**
* Maps in a memory region such that it can be used for performing a DMA.
*
* @return
*/
/****************************************************************************/
int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */
int dirtied /* non-zero if any of the pages were modified */
) {
int rc = 0;
int regionIdx;
int segmentIdx;
DMA_Region_t *region;
DMA_Segment_t *segment;
down(&memMap->lock);
for (regionIdx = 0; regionIdx < memMap->numRegionsUsed; regionIdx++) {
region = &memMap->region[regionIdx];
for (segmentIdx = 0; segmentIdx < region->numSegmentsUsed;
segmentIdx++) {
segment = &region->segment[segmentIdx];
switch (region->memType) {
case DMA_MEM_TYPE_VMALLOC:
{
printk(KERN_ERR
"%s: vmalloc'd pages are not yet supported\n",
__func__);
rc = -EINVAL;
goto out;
}
case DMA_MEM_TYPE_KMALLOC:
{
#if ALLOW_MAP_OF_KMALLOC_MEMORY
dma_unmap_single(NULL,
segment->physAddr,
segment->numBytes,
memMap->dir);
#endif
break;
}
case DMA_MEM_TYPE_DMA:
{
dma_sync_single_for_cpu(NULL,
segment->
physAddr,
segment->
numBytes,
memMap->dir);
break;
}
case DMA_MEM_TYPE_USER:
{
/* Nothing to do here. */
break;
}
default:
{
printk(KERN_ERR
"%s: Unsupported memory type: %d\n",
__func__, region->memType);
rc = -EINVAL;
goto out;
}
}
segment->virtAddr = NULL;
segment->physAddr = 0;
segment->numBytes = 0;
}
if (region->numLockedPages > 0) {
int pageIdx;
/* Some user pages were locked. We need to go and unlock them now. */
for (pageIdx = 0; pageIdx < region->numLockedPages;
pageIdx++) {
struct page *page =
region->lockedPages[pageIdx];
if (memMap->dir == DMA_FROM_DEVICE) {
SetPageDirty(page);
}
page_cache_release(page);
}
kfree(region->lockedPages);
region->numLockedPages = 0;
region->lockedPages = NULL;
}
region->memType = DMA_MEM_TYPE_NONE;
region->virtAddr = NULL;
region->numBytes = 0;
region->numSegmentsUsed = 0;
}
memMap->userTask = NULL;
memMap->numRegionsUsed = 0;
memMap->inUse = 0;
out:
up(&memMap->lock);
return rc;
}
EXPORT_SYMBOL(dma_unmap);

196
arch/arm/mach-bcmring/include/mach/dma.h
View File

@ -26,15 +26,9 @@
/* ---- Include Files ---------------------------------------------------- */
#include <linux/kernel.h>
#include <linux/wait.h>
#include <linux/semaphore.h>
#include <csp/dmacHw.h>
#include <mach/timer.h>
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
/* ---- Constants and Types ---------------------------------------------- */
@ -111,78 +105,6 @@ typedef struct {
} DMA_DescriptorRing_t;
/****************************************************************************
*
* The DMA_MemType_t and DMA_MemMap_t are helper structures used to setup
* DMA chains from a variety of memory sources.
*
*****************************************************************************/
#define DMA_MEM_MAP_MIN_SIZE 4096 /* Pages less than this size are better */
/* off not being DMA'd. */
typedef enum {
DMA_MEM_TYPE_NONE, /* Not a valid setting */
DMA_MEM_TYPE_VMALLOC, /* Memory came from vmalloc call */
DMA_MEM_TYPE_KMALLOC, /* Memory came from kmalloc call */
DMA_MEM_TYPE_DMA, /* Memory came from dma_alloc_xxx call */
DMA_MEM_TYPE_USER, /* Memory came from user space. */
} DMA_MemType_t;
/* A segment represents a physically and virtually contiguous chunk of memory. */
/* i.e. each segment can be DMA'd */
/* A user of the DMA code will add memory regions. Each region may need to be */
/* represented by one or more segments. */
typedef struct {
void *virtAddr; /* Virtual address used for this segment */
dma_addr_t physAddr; /* Physical address this segment maps to */
size_t numBytes; /* Size of the segment, in bytes */
} DMA_Segment_t;
/* A region represents a virtually contiguous chunk of memory, which may be */
/* made up of multiple segments. */
typedef struct {
DMA_MemType_t memType;
void *virtAddr;
size_t numBytes;
/* Each region (virtually contiguous) consists of one or more segments. Each */
/* segment is virtually and physically contiguous. */
int numSegmentsUsed;
int numSegmentsAllocated;
DMA_Segment_t *segment;
/* When a region corresponds to user memory, we need to lock all of the pages */
/* down before we can figure out the physical addresses. The lockedPage array contains */
/* the pages that were locked, and which subsequently need to be unlocked once the */
/* memory is unmapped. */
unsigned numLockedPages;
struct page **lockedPages;
} DMA_Region_t;
typedef struct {
int inUse; /* Is this mapping currently being used? */
struct semaphore lock; /* Acquired when using this structure */
enum dma_data_direction dir; /* Direction this transfer is intended for */
/* In the event that we're mapping user memory, we need to know which task */
/* the memory is for, so that we can obtain the correct mm locks. */
struct task_struct *userTask;
int numRegionsUsed;
int numRegionsAllocated;
DMA_Region_t *region;
} DMA_MemMap_t;
/****************************************************************************
*
* The DMA_DeviceAttribute_t contains information which describes a
@ -568,124 +490,6 @@ int dma_alloc_double_dst_descriptors(DMA_Handle_t handle, /* DMA Handle */
size_t numBytes /* Number of bytes in each destination buffer */
);
/****************************************************************************/
/**
* Initializes a DMA_MemMap_t data structure
*/
/****************************************************************************/
int dma_init_mem_map(DMA_MemMap_t *memMap /* Stores state information about the map */
);
/****************************************************************************/
/**
* Releases any memory currently being held by a memory mapping structure.
*/
/****************************************************************************/
int dma_term_mem_map(DMA_MemMap_t *memMap /* Stores state information about the map */
);
/****************************************************************************/
/**
* Looks at a memory address and categorizes it.
*
* @return One of the values from the DMA_MemType_t enumeration.
*/
/****************************************************************************/
DMA_MemType_t dma_mem_type(void *addr);
/****************************************************************************/
/**
* Sets the process (aka userTask) associated with a mem map. This is
* required if user-mode segments will be added to the mapping.
*/
/****************************************************************************/
static inline void dma_mem_map_set_user_task(DMA_MemMap_t *memMap,
struct task_struct *task)
{
memMap->userTask = task;
}
/****************************************************************************/
/**
* Looks at a memory address and determines if we support DMA'ing to/from
* that type of memory.
*
* @return boolean -
* return value != 0 means dma supported
* return value == 0 means dma not supported
*/
/****************************************************************************/
int dma_mem_supports_dma(void *addr);
/****************************************************************************/
/**
* Initializes a memory map for use. Since this function acquires a
* sempaphore within the memory map, it is VERY important that dma_unmap
* be called when you're finished using the map.
*/
/****************************************************************************/
int dma_map_start(DMA_MemMap_t *memMap, /* Stores state information about the map */
enum dma_data_direction dir /* Direction that the mapping will be going */
);
/****************************************************************************/
/**
* Adds a segment of memory to a memory map.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
int dma_map_add_region(DMA_MemMap_t *memMap, /* Stores state information about the map */
void *mem, /* Virtual address that we want to get a map of */
size_t numBytes /* Number of bytes being mapped */
);
/****************************************************************************/
/**
* Creates a descriptor ring from a memory mapping.
*
* @return 0 on success, error code otherwise.
*/
/****************************************************************************/
int dma_map_create_descriptor_ring(DMA_Device_t dev, /* DMA device (where the ring is stored) */
DMA_MemMap_t *memMap, /* Memory map that will be used */
dma_addr_t devPhysAddr /* Physical address of device */
);
/****************************************************************************/
/**
* Maps in a memory region such that it can be used for performing a DMA.
*
* @return
*/
/****************************************************************************/
int dma_map_mem(DMA_MemMap_t *memMap, /* Stores state information about the map */
void *addr, /* Virtual address that we want to get a map of */
size_t count, /* Number of bytes being mapped */
enum dma_data_direction dir /* Direction that the mapping will be going */
);
/****************************************************************************/
/**
* Maps in a memory region such that it can be used for performing a DMA.
*
* @return
*/
/****************************************************************************/
int dma_unmap(DMA_MemMap_t *memMap, /* Stores state information about the map */
int dirtied /* non-zero if any of the pages were modified */
);
/****************************************************************************/
/**
* Initiates a transfer when the descriptors have already been setup.

2
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -44,7 +44,7 @@
#include <mach/aemif.h>
#include <mach/spi.h>
#define DA850_EVM_PHY_ID "0:00"
#define DA850_EVM_PHY_ID "davinci_mdio-0:00"
#define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8)
#define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)

2
arch/arm/mach-davinci/board-dm365-evm.c
View File

@ -54,7 +54,7 @@ static inline int have_tvp7002(void)
return 0;
}
#define DM365_EVM_PHY_ID "0:01"
#define DM365_EVM_PHY_ID "davinci_mdio-0:01"
/*
* A MAX-II CPLD is used for various board control functions.
*/

2
arch/arm/mach-davinci/board-dm644x-evm.c
View File

@ -40,7 +40,7 @@
#include <mach/usb.h>
#include <mach/aemif.h>
#define DM644X_EVM_PHY_ID "0:01"
#define DM644X_EVM_PHY_ID "davinci_mdio-0:01"
#define LXT971_PHY_ID (0x001378e2)
#define LXT971_PHY_MASK (0xfffffff0)

2
arch/arm/mach-davinci/board-dm646x-evm.c
View File

@ -736,7 +736,7 @@ static struct davinci_uart_config uart_config __initdata = {
.enabled_uarts = (1 << 0),
};
#define DM646X_EVM_PHY_ID "0:01"
#define DM646X_EVM_PHY_ID "davinci_mdio-0:01"
/*
* The following EDMA channels/slots are not being used by drivers (for
* example: Timer, GPIO, UART events etc) on dm646x, hence they are being

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