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Commit 4257412d authored by Olof Johansson's avatar Olof Johansson
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Merge tag 'fixes-against-v3.18-rc2' of... 

Merge tag 'fixes-against-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v3.18-rc2" from Tony Lindgren:

Few fixes for omaps to enable NAND BCH so devices won't
produce errors when booted with omap2plus_defconfig, and
reduce bloat by making IPV6 a loadable module.

Also let's add a warning about legacy boot being deprecated
for omap3.

We now have things working with device tree, and only omap3 is
still booting in legacy mode. So hopefully this warning will
help move the remaining legacy mode users to boot with device
tree.

As the total reduction of code and static data is somewhere
around 20000 lines of code once we remove omap3 legacy mode
booting, we really do want to make omap3 to boot also in
device tree mode only over the next few merge cycles.

* tag 'fixes-against-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (407 commits)
  ARM: OMAP2+: Warn about deprecated legacy booting mode
  ARM: omap2plus_defconfig: Fix errors with NAND BCH
  ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in
  + Linux 3.18-rc2
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parents cc040ba2 4b91f7f3
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Documentation/arm64/memory.txt
View file @ 4257412d
......@@ -17,7 +17,7 @@ User addresses have bits 63:48 set to 0 while the kernel addresses have
the same bits set to 1. TTBRx selection is given by bit 63 of the
virtual address. The swapper_pg_dir contains only kernel (global)
mappings while the user pgd contains only user (non-global) mappings.
The swapper_pgd_dir address is written to TTBR1 and never written to
The swapper_pg_dir address is written to TTBR1 and never written to
TTBR0.
......
Documentation/devicetree/bindings/mailbox/mailbox.txt 0 → 100644
View file @ 4257412d
* Generic Mailbox Controller and client driver bindings
Generic binding to provide a way for Mailbox controller drivers to
assign appropriate mailbox channel to client drivers.
* Mailbox Controller
Required property:
- #mbox-cells: Must be at least 1. Number of cells in a mailbox
specifier.
Example:
mailbox: mailbox {
...
#mbox-cells = <1>;
};
* Mailbox Client
Required property:
- mboxes: List of phandle and mailbox channel specifiers.
Optional property:
- mbox-names: List of identifier strings for each mailbox channel
required by the client. The use of this property
is discouraged in favor of using index in list of
'mboxes' while requesting a mailbox. Instead the
platforms may define channel indices, in DT headers,
to something legible.
Example:
pwr_cntrl: power {
...
mbox-names = "pwr-ctrl", "rpc";
mboxes = <&mailbox 0
&mailbox 1>;
};
Documentation/devicetree/bindings/pwm/pwm-fsl-ftm.txt
View file @ 4257412d
Freescale FlexTimer Module (FTM) PWM controller
The same FTM PWM device can have a different endianness on different SoCs. The
device tree provides a property to describing this so that an operating system
device driver can handle all variants of the device. Refer to the table below
for the endianness of the FTM PWM block as integrated into the existing SoCs:
SoC | FTM-PWM endianness
--------+-------------------
Vybrid | LE
LS1 | BE
LS2 | LE
Please see ../regmap/regmap.txt for more detail about how to specify endian
modes in device tree.
Required properties:
- compatible: Should be "fsl,vf610-ftm-pwm".
- reg: Physical base address and length of the controller's registers
......@@ -16,7 +31,8 @@ Required properties:
- pinctrl-names: Must contain a "default" entry.
- pinctrl-NNN: One property must exist for each entry in pinctrl-names.
See pinctrl/pinctrl-bindings.txt for details of the property values.
- big-endian: Boolean property, required if the FTM PWM registers use a big-
endian rather than little-endian layout.
Example:
......@@ -32,4 +48,5 @@ pwm0: pwm@40038000 {
<&clks VF610_CLK_FTM0_EXT_FIX_EN>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm0_1>;
big-endian;
};
Documentation/devicetree/bindings/pwm/pwm-rockchip.txt
View file @ 4257412d
......@@ -7,8 +7,8 @@ Required properties:
"rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
- reg: physical base address and length of the controller's registers
- clocks: phandle and clock specifier of the PWM reference clock
- #pwm-cells: should be 2. See pwm.txt in this directory for a
description of the cell format.
- #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory
for a description of the cell format.
Example:
......
Documentation/devicetree/bindings/thermal/imx-thermal.txt
View file @ 4257412d
* Temperature Monitor (TEMPMON) on Freescale i.MX SoCs
Required properties:
- compatible : "fsl,imx6q-thermal"
- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx-tempmon" for i.MX6SX.
i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC,
when temperature is below than low threshold, IRQ_LOW will be triggered, when temperature
is higher than panic threshold, system will auto reboot by SRC module.
- fsl,tempmon : phandle pointer to system controller that contains TEMPMON
control registers, e.g. ANATOP on imx6q.
- fsl,tempmon-data : phandle pointer to fuse controller that contains TEMPMON
......
Documentation/devicetree/bindings/watchdog/cadence-wdt.txt 0 → 100644
View file @ 4257412d
Zynq Watchdog Device Tree Bindings
-------------------------------------------
Required properties:
- compatible : Should be "cdns,wdt-r1p2".
- clocks : This is pclk (APB clock).
- interrupts : This is wd_irq - watchdog timeout interrupt.
- interrupt-parent : Must be core interrupt controller.
Optional properties
- reset-on-timeout : If this property exists, then a reset is done
when watchdog times out.
- timeout-sec : Watchdog timeout value (in seconds).
Example:
watchdog@f8005000 {
compatible = "cdns,wdt-r1p2";
clocks = <&clkc 45>;
interrupt-parent = <&intc>;
interrupts = <0 9 1>;
reg = <0xf8005000 0x1000>;
reset-on-timeout;
timeout-sec = <10>;
};
Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt
View file @ 4257412d
......@@ -7,7 +7,8 @@ Required properties:
Optional property:
- big-endian: If present the watchdog device's registers are implemented
in big endian mode, otherwise in little mode.
in big endian mode, otherwise in native mode(same with CPU), for more
detail please see: Documentation/devicetree/bindings/regmap/regmap.txt.
Examples:
......
Documentation/devicetree/bindings/watchdog/meson6-wdt.txt 0 → 100644
View file @ 4257412d
Meson SoCs Watchdog timer
Required properties:
- compatible : should be "amlogic,meson6-wdt"
- reg : Specifies base physical address and size of the registers.
Example:
wdt: watchdog@c1109900 {
compatible = "amlogic,meson6-wdt";
reg = <0xc1109900 0x8>;
};
Documentation/devicetree/bindings/watchdog/qcom-wdt.txt 0 → 100644
View file @ 4257412d
Qualcomm Krait Processor Sub-system (KPSS) Watchdog
---------------------------------------------------
Required properties :
- compatible : shall contain only one of the following:
"qcom,kpss-wdt-msm8960"
"qcom,kpss-wdt-apq8064"
"qcom,kpss-wdt-ipq8064"
- reg : shall contain base register location and length
- clocks : shall contain the input clock
Optional properties :
- timeout-sec : shall contain the default watchdog timeout in seconds,
if unset, the default timeout is 30 seconds
Example:
watchdog@208a038 {
compatible = "qcom,kpss-wdt-ipq8064";
reg = <0x0208a038 0x40>;
clocks = <&sleep_clk>;
timeout-sec = <10>;
};
Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
View file @ 4257412d
......@@ -9,6 +9,7 @@ Required properties:
(a) "samsung,s3c2410-wdt" for Exynos4 and previous SoCs
(b) "samsung,exynos5250-wdt" for Exynos5250
(c) "samsung,exynos5420-wdt" for Exynos5420
(c) "samsung,exynos7-wdt" for Exynos7
- reg : base physical address of the controller and length of memory mapped
region.
......
Documentation/filesystems/Locking
View file @ 4257412d
......@@ -67,6 +67,7 @@ prototypes:
struct file *, unsigned open_flag,
umode_t create_mode, int *opened);
int (*tmpfile) (struct inode *, struct dentry *, umode_t);
int (*dentry_open)(struct dentry *, struct file *, const struct cred *);
locking rules:
all may block
......@@ -96,6 +97,7 @@ fiemap: no
update_time: no
atomic_open: yes
tmpfile: no
dentry_open: no
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
victim.
......
Documentation/filesystems/overlayfs.txt 0 → 100644
View file @ 4257412d
Written by: Neil Brown <neilb@suse.de>
Overlay Filesystem
==================
This document describes a prototype for a new approach to providing
overlay-filesystem functionality in Linux (sometimes referred to as
union-filesystems). An overlay-filesystem tries to present a
filesystem which is the result over overlaying one filesystem on top
of the other.
The result will inevitably fail to look exactly like a normal
filesystem for various technical reasons. The expectation is that
many use cases will be able to ignore these differences.
This approach is 'hybrid' because the objects that appear in the
filesystem do not all appear to belong to that filesystem. In many
cases an object accessed in the union will be indistinguishable
from accessing the corresponding object from the original filesystem.
This is most obvious from the 'st_dev' field returned by stat(2).
While directories will report an st_dev from the overlay-filesystem,
all non-directory objects will report an st_dev from the lower or
upper filesystem that is providing the object. Similarly st_ino will
only be unique when combined with st_dev, and both of these can change
over the lifetime of a non-directory object. Many applications and
tools ignore these values and will not be affected.
Upper and Lower
---------------
An overlay filesystem combines two filesystems - an 'upper' filesystem
and a 'lower' filesystem. When a name exists in both filesystems, the
object in the 'upper' filesystem is visible while the object in the
'lower' filesystem is either hidden or, in the case of directories,
merged with the 'upper' object.
It would be more correct to refer to an upper and lower 'directory
tree' rather than 'filesystem' as it is quite possible for both
directory trees to be in the same filesystem and there is no
requirement that the root of a filesystem be given for either upper or
lower.
The lower filesystem can be any filesystem supported by Linux and does
not need to be writable. The lower filesystem can even be another
overlayfs. The upper filesystem will normally be writable and if it
is it must support the creation of trusted.* extended attributes, and
must provide valid d_type in readdir responses, so NFS is not suitable.
A read-only overlay of two read-only filesystems may use any
filesystem type.
Directories
-----------
Overlaying mainly involves directories. If a given name appears in both
upper and lower filesystems and refers to a non-directory in either,
then the lower object is hidden - the name refers only to the upper
object.
Where both upper and lower objects are directories, a merged directory
is formed.
At mount time, the two directories given as mount options "lowerdir" and
"upperdir" are combined into a merged directory:
mount -t overlayfs overlayfs -olowerdir=/lower,upperdir=/upper,\
workdir=/work /merged
The "workdir" needs to be an empty directory on the same filesystem
as upperdir.
Then whenever a lookup is requested in such a merged directory, the
lookup is performed in each actual directory and the combined result
is cached in the dentry belonging to the overlay filesystem. If both
actual lookups find directories, both are stored and a merged
directory is created, otherwise only one is stored: the upper if it
exists, else the lower.
Only the lists of names from directories are merged. Other content
such as metadata and extended attributes are reported for the upper
directory only. These attributes of the lower directory are hidden.
whiteouts and opaque directories
--------------------------------
In order to support rm and rmdir without changing the lower
filesystem, an overlay filesystem needs to record in the upper filesystem
that files have been removed. This is done using whiteouts and opaque
directories (non-directories are always opaque).
A whiteout is created as a character device with 0/0 device number.
When a whiteout is found in the upper level of a merged directory, any
matching name in the lower level is ignored, and the whiteout itself
is also hidden.
A directory is made opaque by setting the xattr "trusted.overlay.opaque"
to "y". Where the upper filesystem contains an opaque directory, any
directory in the lower filesystem with the same name is ignored.
readdir
-------
When a 'readdir' request is made on a merged directory, the upper and
lower directories are each read and the name lists merged in the
obvious way (upper is read first, then lower - entries that already
exist are not re-added). This merged name list is cached in the
'struct file' and so remains as long as the file is kept open. If the
directory is opened and read by two processes at the same time, they
will each have separate caches. A seekdir to the start of the
directory (offset 0) followed by a readdir will cause the cache to be
discarded and rebuilt.
This means that changes to the merged directory do not appear while a
directory is being read. This is unlikely to be noticed by many
programs.
seek offsets are assigned sequentially when the directories are read.
Thus if
- read part of a directory
- remember an offset, and close the directory
- re-open the directory some time later
- seek to the remembered offset
there may be little correlation between the old and new locations in
the list of filenames, particularly if anything has changed in the
directory.
Readdir on directories that are not merged is simply handled by the
underlying directory (upper or lower).
Non-directories
---------------
Objects that are not directories (files, symlinks, device-special
files etc.) are presented either from the upper or lower filesystem as
appropriate. When a file in the lower filesystem is accessed in a way
the requires write-access, such as opening for write access, changing
some metadata etc., the file is first copied from the lower filesystem
to the upper filesystem (copy_up). Note that creating a hard-link
also requires copy_up, though of course creation of a symlink does
not.
The copy_up may turn out to be unnecessary, for example if the file is
opened for read-write but the data is not modified.
The copy_up process first makes sure that the containing directory
exists in the upper filesystem - creating it and any parents as
necessary. It then creates the object with the same metadata (owner,
mode, mtime, symlink-target etc.) and then if the object is a file, the
data is copied from the lower to the upper filesystem. Finally any
extended attributes are copied up.
Once the copy_up is complete, the overlay filesystem simply
provides direct access to the newly created file in the upper
filesystem - future operations on the file are barely noticed by the
overlay filesystem (though an operation on the name of the file such as
rename or unlink will of course be noticed and handled).
Non-standard behavior
---------------------
The copy_up operation essentially creates a new, identical file and
moves it over to the old name. The new file may be on a different
filesystem, so both st_dev and st_ino of the file may change.
Any open files referring to this inode will access the old data and
metadata. Similarly any file locks obtained before copy_up will not
apply to the copied up file.
On a file opened with O_RDONLY fchmod(2), fchown(2), futimesat(2) and
fsetxattr(2) will fail with EROFS.
If a file with multiple hard links is copied up, then this will
"break" the link. Changes will not be propagated to other names
referring to the same inode.
Symlinks in /proc/PID/ and /proc/PID/fd which point to a non-directory
object in overlayfs will not contain valid absolute paths, only
relative paths leading up to the filesystem's root. This will be
fixed in the future.
Some operations are not atomic, for example a crash during copy_up or
rename will leave the filesystem in an inconsistent state. This will
be addressed in the future.
Changes to underlying filesystems
---------------------------------
Offline changes, when the overlay is not mounted, are allowed to either
the upper or the lower trees.
Changes to the underlying filesystems while part of a mounted overlay
filesystem are not allowed. If the underlying filesystem is changed,
the behavior of the overlay is undefined, though it will not result in
a crash or deadlock.
Documentation/filesystems/vfs.txt
View file @ 4257412d
......@@ -364,6 +364,7 @@ struct inode_operations {
int (*atomic_open)(struct inode *, struct dentry *, struct file *,
unsigned open_flag, umode_t create_mode, int *opened);
int (*tmpfile) (struct inode *, struct dentry *, umode_t);
int (*dentry_open)(struct dentry *, struct file *, const struct cred *);
};
Again, all methods are called without any locks being held, unless
......@@ -696,6 +697,12 @@ struct address_space_operations {
but instead uses bmap to find out where the blocks in the file
are and uses those addresses directly.
dentry_open: *WARNING: probably going away soon, do not use!* This is an
alternative to f_op->open(), the difference is that this method may open
a file not necessarily originating from the same filesystem as the one
i_op->open() was called on. It may be useful for stacking filesystems
which want to allow native I/O directly on underlying files.
invalidatepage: If a page has PagePrivate set, then invalidatepage
will be called when part or all of the page is to be removed
......
Documentation/kernel-parameters.txt
View file @ 4257412d
......@@ -1015,10 +1015,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Format: {"off" | "on" | "skip[mbr]"}
efi= [EFI]
Format: { "old_map" }
Format: { "old_map", "nochunk", "noruntime" }
old_map [X86-64]: switch to the old ioremap-based EFI
runtime services mapping. 32-bit still uses this one by
default.
nochunk: disable reading files in "chunks" in the EFI
boot stub, as chunking can cause problems with some
firmware implementations.
noruntime : disable EFI runtime services support
efi_no_storage_paranoia [EFI; X86]
Using this parameter you can use more than 50% of
......@@ -2232,7 +2236,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
nodsp [SH] Disable hardware DSP at boot time.
noefi [X86] Disable EFI runtime services support.
noefi Disable EFI runtime services support.
noexec [IA-64]
......@@ -3465,6 +3469,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
e.g. base its process migration decisions on it.
Default is on.
topology_updates= [KNL, PPC, NUMA]
Format: {off}
Specify if the kernel should ignore (off)
topology updates sent by the hypervisor to this
LPAR.
tp720= [HW,PS2]
tpm_suspend_pcr=[HW,TPM]
......
Documentation/mailbox.txt 0 → 100644
View file @ 4257412d
The Common Mailbox Framework
Jassi Brar <jaswinder.singh@linaro.org>
This document aims to help developers write client and controller
drivers for the API. But before we start, let us note that the
client (especially) and controller drivers are likely going to be
very platform specific because the remote firmware is likely to be
proprietary and implement non-standard protocol. So even if two
platforms employ, say, PL320 controller, the client drivers can't
be shared across them. Even the PL320 driver might need to accommodate
some platform specific quirks. So the API is meant mainly to avoid
similar copies of code written for each platform. Having said that,
nothing prevents the remote f/w to also be Linux based and use the
same api there. However none of that helps us locally because we only
ever deal at client's protocol level.
Some of the choices made during implementation are the result of this
peculiarity of this "common" framework.
Part 1 - Controller Driver (See include/linux/mailbox_controller.h)
Allocate mbox_controller and the array of mbox_chan.
Populate mbox_chan_ops, except peek_data() all are mandatory.
The controller driver might know a message has been consumed
by the remote by getting an IRQ or polling some hardware flag
or it can never know (the client knows by way of the protocol).
The method in order of preference is IRQ -> Poll -> None, which
the controller driver should set via 'txdone_irq' or 'txdone_poll'
or neither.
Part 2 - Client Driver (See include/linux/mailbox_client.h)
The client might want to operate in blocking mode (synchronously
send a message through before returning) or non-blocking/async mode (submit
a message and a callback function to the API and return immediately).
struct demo_client {
struct mbox_client cl;
struct mbox_chan *mbox;
struct completion c;
bool async;
/* ... */
};
/*
* This is the handler for data received from remote. The behaviour is purely
* dependent upon the protocol. This is just an example.
*/
static void message_from_remote(struct mbox_client *cl, void *mssg)
{
struct demo_client *dc = container_of(mbox_client,
struct demo_client, cl);
if (dc->aysnc) {
if (is_an_ack(mssg)) {
/* An ACK to our last sample sent */
return; /* Or do something else here */
} else { /* A new message from remote */
queue_req(mssg);
}
} else {
/* Remote f/w sends only ACK packets on this channel */
return;
}
}
static void sample_sent(struct mbox_client *cl, void *mssg, int r)
{
struct demo_client *dc = container_of(mbox_client,
struct demo_client, cl);
complete(&dc->c);
}
static void client_demo(struct platform_device *pdev)
{
struct demo_client *dc_sync, *dc_async;
/* The controller already knows async_pkt and sync_pkt */
struct async_pkt ap;
struct sync_pkt sp;
dc_sync = kzalloc(sizeof(*dc_sync), GFP_KERNEL);
dc_async = kzalloc(sizeof(*dc_async), GFP_KERNEL);
/* Populate non-blocking mode client */
dc_async->cl.dev = &pdev->dev;
dc_async->cl.rx_callback = message_from_remote;
dc_async->cl.tx_done = sample_sent;
dc_async->cl.tx_block = false;
dc_async->cl.tx_tout = 0; /* doesn't matter here */
dc_async->cl.knows_txdone = false; /* depending upon protocol */
dc_async->async = true;
init_completion(&dc_async->c);
/* Populate blocking mode client */
dc_sync->cl.dev = &pdev->dev;
dc_sync->cl.rx_callback = message_from_remote;
dc_sync->cl.tx_done = NULL; /* operate in blocking mode */
dc_sync->cl.tx_block = true;
dc_sync->cl.tx_tout = 500; /* by half a second */
dc_sync->cl.knows_txdone = false; /* depending upon protocol */
dc_sync->async = false;
/* ASync mailbox is listed second in 'mboxes' property */
dc_async->mbox = mbox_request_channel(&dc_async->cl, 1);
/* Populate data packet */
/* ap.xxx = 123; etc */
/* Send async message to remote */
mbox_send_message(dc_async->mbox, &ap);
/* Sync mailbox is listed first in 'mboxes' property */
dc_sync->mbox = mbox_request_channel(&dc_sync->cl, 0);
/* Populate data packet */
/* sp.abc = 123; etc */
/* Send message to remote in blocking mode */
mbox_send_message(dc_sync->mbox, &sp);
/* At this point 'sp' has been sent */
/* Now wait for async chan to be done */
wait_for_completion(&dc_async->c);
}
Documentation/power/pm_qos_interface.txt
View file @ 4257412d
......@@ -5,7 +5,8 @@ performance expectations by drivers, subsystems and user space applications on
one of the parameters.
Two different PM QoS frameworks are available:
1. PM QoS classes for cpu_dma_latency, network_latency, network_throughput.
1. PM QoS classes for cpu_dma_latency, network_latency, network_throughput,
memory_bandwidth.
2. the per-device PM QoS framework provides the API to manage the per-device latency
constraints and PM QoS flags.
......@@ -13,6 +14,7 @@ Each parameters have defined units:
* latency: usec
* timeout: usec
* throughput: kbs (kilo bit / sec)
* memory bandwidth: mbs (mega bit / sec)
1. PM QoS framework
......
Documentation/scsi/osd.txt
View file @ 4257412d
......@@ -184,8 +184,7 @@ Any problems, questions, bug reports, lonely OSD nights, please email:
More up-to-date information can be found on:
http://open-osd.org
Boaz Harrosh <bharrosh@panasas.com>
Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh <ooo@electrozaur.com>
References
==========
......
Documentation/target/tcmu-design.txt 0 → 100644
View file @ 4257412d
This diff is collapsed.
MAINTAINERS
View file @ 4257412d
......@@ -5842,6 +5842,14 @@ S: Maintained
F: drivers/net/macvlan.c
F: include/linux/if_macvlan.h
MAILBOX API
M: Jassi Brar <jassisinghbrar@gmail.com>
L: linux-kernel@vger.kernel.org
S: Maintained
F: drivers/mailbox/
F: include/linux/mailbox_client.h
F: include/linux/mailbox_controller.h
MAN-PAGES: MANUAL PAGES FOR LINUX -- Sections 2, 3, 4, 5, and 7
M: Michael Kerrisk <mtk.manpages@gmail.com>
W: http://www.kernel.org/doc/man-pages
......@@ -6830,7 +6838,7 @@ S: Orphan
F: drivers/net/wireless/orinoco/
OSD LIBRARY and FILESYSTEM
M: Boaz Harrosh <bharrosh@panasas.com>
M: Boaz Harrosh <ooo@electrozaur.com>
M: Benny Halevy <bhalevy@primarydata.com>
L: osd-dev@open-osd.org
W: http://open-osd.org
......@@ -6840,6 +6848,13 @@ F: drivers/scsi/osd/
F: include/scsi/osd_*
F: fs/exofs/
OVERLAYFS FILESYSTEM
M: Miklos Szeredi <miklos@szeredi.hu>
L: linux-fsdevel@vger.kernel.org
S: Supported
F: fs/overlayfs/*
F: Documentation/filesystems/overlayfs.txt
P54 WIRELESS DRIVER
M: Christian Lamparter <chunkeey@googlemail.com>
L: linux-wireless@vger.kernel.org
......
Makefile
View file @ 4257412d
VERSION = 3
PATCHLEVEL = 18
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc2
NAME = Shuffling Zombie Juror
# *DOCUMENTATION*
......
arch/arc/Kconfig
View file @ 4257412d
......@@ -9,6 +9,7 @@
config ARC
def_bool y
select BUILDTIME_EXTABLE_SORT
select COMMON_CLK
select CLONE_BACKWARDS
# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
select DEVTMPFS if !INITRAMFS_SOURCE=""
......@@ -73,9 +74,6 @@ config STACKTRACE_SUPPORT
config HAVE_LATENCYTOP_SUPPORT
def_bool y
config NO_DMA
def_bool n
source "init/Kconfig"
source "kernel/Kconfig.freezer"
......@@ -354,7 +352,7 @@ config ARC_CURR_IN_REG
kernel mode. This saves memory access for each such access
config ARC_MISALIGN_ACCESS
config ARC_EMUL_UNALIGNED
bool "Emulate unaligned memory access (userspace only)"
select SYSCTL_ARCH_UNALIGN_NO_WARN
select SYSCTL_ARCH_UNALIGN_ALLOW
......
arch/arc/Makefile
View file @ 4257412d
......@@ -25,7 +25,6 @@ ifdef CONFIG_ARC_CURR_IN_REG
LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
endif
upto_gcc42 := $(call cc-ifversion, -le, 0402, y)
upto_gcc44 := $(call cc-ifversion, -le, 0404, y)
atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y)
atleast_gcc48 := $(call cc-ifversion, -ge, 0408, y)
......@@ -60,25 +59,11 @@ ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
ARC_LIBGCC := -mA7
cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
ifndef CONFIG_ARC_HAS_HW_MPY
cflags-y += -mno-mpy
# newlib for ARC700 assumes MPY to be always present, which is generally true
# However, if someone really doesn't want MPY, we need to use the 600 ver
# which coupled with -mno-mpy will use mpy emulation
# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
ifeq ($(upto_gcc42),y)
ARC_LIBGCC := -marc600
cflags-y += -multcost=30
endif
endif
LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls
......
arch/arc/boot/dts/angel4.dts
View file @ 4257412d
......@@ -24,11 +24,6 @@ aliases {
serial0 = &arcuart0;
};
memory {
device_type = "memory";
reg = <0x00000000 0x10000000>; /* 256M */
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
......
arch/arc/boot/dts/nsimosci.dts
View file @ 4257412d
......@@ -20,18 +20,13 @@ chosen {
/* this is for console on PGU */
/* bootargs = "console=tty0 consoleblank=0"; */
/* this is for console on serial */
bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug";
bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=tty0 console=ttyS0,115200n8 consoleblank=0 debug";
};
aliases {
serial0 = &uart0;
};
memory {
device_type = "memory";
reg = <0x80000000 0x10000000>; /* 256M */
};
fpga {
compatible = "simple-bus";
#address-cells = <1>;
......
arch/arc/configs/fpga_defconfig
View file @ 4257412d
......@@ -23,7 +23,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_HAS_RTSC is not set
CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
CONFIG_PREEMPT=y
......
arch/arc/configs/fpga_noramfs_defconfig
View file @ 4257412d
......@@ -20,7 +20,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_HAS_RTSC is not set
CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
CONFIG_PREEMPT=y
......
arch/arc/configs/nsimosci_defconfig
View file @ 4257412d
......@@ -21,7 +21,6 @@ CONFIG_MODULES=y
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
CONFIG_ARC_PLAT_FPGA_LEGACY=y
CONFIG_ARC_BOARD_ML509=y
# CONFIG_ARC_IDE is not set
# CONFIG_ARCTANGENT_EMAC is not set
# CONFIG_ARC_HAS_RTSC is not set
......
arch/arc/include/asm/arcregs.h
View file @ 4257412d
......@@ -9,19 +9,16 @@
#ifndef _ASM_ARC_ARCREGS_H
#define _ASM_ARC_ARCREGS_H
#ifdef __KERNEL__
/* Build Configuration Registers */
#define ARC_REG_DCCMBASE_BCR 0x61 /* DCCM Base Addr */
#define ARC_REG_CRC_BCR 0x62
#define ARC_REG_DVFB_BCR 0x64
#define ARC_REG_EXTARITH_BCR 0x65
#define ARC_REG_VECBASE_BCR 0x68
#define ARC_REG_PERIBASE_BCR 0x69
#define ARC_REG_FP_BCR 0x6B /* Single-Precision FPU */
#define ARC_REG_DPFP_BCR 0x6C /* Dbl Precision FPU */
#define ARC_REG_FP_BCR 0x6B /* ARCompact: Single-Precision FPU */
#define ARC_REG_DPFP_BCR 0x6C /* ARCompact: Dbl Precision FPU */
#define ARC_REG_DCCM_BCR 0x74 /* DCCM Present + SZ */
#define ARC_REG_TIMERS_BCR 0x75
#define ARC_REG_AP_BCR 0x76
#define ARC_REG_ICCM_BCR 0x78
#define ARC_REG_XY_MEM_BCR 0x79
#define ARC_REG_MAC_BCR 0x7a
......@@ -31,6 +28,9 @@
#define ARC_REG_MIXMAX_BCR 0x7e
#define ARC_REG_BARREL_BCR 0x7f
#define ARC_REG_D_UNCACH_BCR 0x6A
#define ARC_REG_BPU_BCR 0xc0
#define ARC_REG_ISA_CFG_BCR 0xc1
#define ARC_REG_SMART_BCR 0xFF
/* status32 Bits Positions */
#define STATUS_AE_BIT 5 /* Exception active */
......@@ -191,14 +191,6 @@
#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/*
***************************************************************
......@@ -212,27 +204,19 @@ struct bcr_identity {
#endif
};
#define EXTN_SWAP_VALID 0x1
#define EXTN_NORM_VALID 0x2
#define EXTN_MINMAX_VALID 0x2
#define EXTN_BARREL_VALID 0x2
struct bcr_extn {
struct bcr_isa {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:20, crc:1, ext_arith:2, mul:2, barrel:2, minmax:2,
norm:2, swap:1;
unsigned int pad1:23, atomic1:1, ver:8;
#else
unsigned int swap:1, norm:2, minmax:2, barrel:2, mul:2, ext_arith:2,
crc:1, pad:20;
unsigned int ver:8, atomic1:1, pad1:23;
#endif
};
/* DSP Options Ref Manual */
struct bcr_extn_mac_mul {
struct bcr_mpy {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:16, type:8, ver:8;
unsigned int pad:8, x1616:8, dsp:4, cycles:2, type:2, ver:8;
#else
unsigned int ver:8, type:8, pad:16;
unsigned int ver:8, type:2, cycles:2, dsp:4, x1616:8, pad:8;
#endif
};
......@@ -251,6 +235,7 @@ struct bcr_perip {
unsigned int pad:8, sz:8, pad2:8, start:8;
#endif
};
struct bcr_iccm {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int base:16, pad:5, sz:3, ver:8;
......@@ -277,8 +262,8 @@ struct bcr_dccm {
#endif
};
/* Both SP and DP FPU BCRs have same format */
struct bcr_fp {
/* ARCompact: Both SP and DP FPU BCRs have same format */
struct bcr_fp_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int fast:1, ver:8;
#else
......@@ -286,6 +271,30 @@ struct bcr_fp {
#endif
};
struct bcr_timer {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:15, rtsc:1, pad1:6, t1:1, t0:1, ver:8;
#else
unsigned int ver:8, t0:1, t1:1, pad1:6, rtsc:1, pad2:15;
#endif
};
struct bcr_bpu_arcompact {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad2:19, fam:1, pad:2, ent:2, ver:8;
#else
unsigned int ver:8, ent:2, pad:2, fam:1, pad2:19;
#endif
};
struct bcr_generic {
#ifdef CONFIG_CPU_BIG_ENDIAN
unsigned int pad:24, ver:8;
#else
unsigned int ver:8, pad:24;
#endif
};
/*
*******************************************************************
* Generic structures to hold build configuration used at runtime
......@@ -299,6 +308,10 @@ struct cpuinfo_arc_cache {
unsigned int sz_k:8, line_len:8, assoc:4, ver:4, alias:1, vipt:1, pad:6;
};
struct cpuinfo_arc_bpu {
unsigned int ver, full, num_cache, num_pred;
};
struct cpuinfo_arc_ccm {
unsigned int base_addr, sz;
};
......@@ -306,21 +319,25 @@ struct cpuinfo_arc_ccm {
struct cpuinfo_arc {
struct cpuinfo_arc_cache icache, dcache;
struct cpuinfo_arc_mmu mmu;
struct cpuinfo_arc_bpu bpu;
struct bcr_identity core;
unsigned int timers;
struct bcr_isa isa;
struct bcr_timer timers;
unsigned int vec_base;
unsigned int uncached_base;
struct cpuinfo_arc_ccm iccm, dccm;
struct bcr_extn extn;
struct {
unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, pad1:3,
fpu_sp:1, fpu_dp:1, pad2:6,
debug:1, ap:1, smart:1, rtt:1, pad3:4,
pad4:8;
} extn;
struct bcr_mpy extn_mpy;
struct bcr_extn_xymem extn_xymem;
struct bcr_extn_mac_mul extn_mac_mul;
struct bcr_fp fp, dpfp;
};
extern struct cpuinfo_arc cpuinfo_arc700[];
#endif /* __ASEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_ARCREGS_H */
arch/arc/include/asm/atomic.h
View file @ 4257412d
......@@ -9,8 +9,6 @@
#ifndef _ASM_ARC_ATOMIC_H
#define _ASM_ARC_ATOMIC_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/types.h>
......@@ -170,5 +168,3 @@ ATOMIC_OP(and, &=, and)
#endif
#endif
#endif
arch/arc/include/asm/bitops.h
View file @ 4257412d
......@@ -13,8 +13,6 @@
#error only <linux/bitops.h> can be included directly
#endif
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <linux/types.h>
......@@ -508,6 +506,4 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word)
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif
arch/arc/include/asm/bug.h
View file @ 4257412d
......@@ -21,10 +21,9 @@ void show_kernel_fault_diag(const char *str, struct pt_regs *regs,
unsigned long address);
void die(const char *str, struct pt_regs *regs, unsigned long address);
#define BUG() do { \
dump_stack(); \
pr_warn("Kernel BUG in %s: %s: %d!\n", \
__FILE__, __func__, __LINE__); \
#define BUG() do { \
pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
dump_stack(); \
} while (0)
#define HAVE_ARCH_BUG
......
arch/arc/include/asm/cache.h
View file @ 4257412d
......@@ -20,7 +20,7 @@
#define CACHE_LINE_MASK (~(L1_CACHE_BYTES - 1))
/*
* ARC700 doesn't cache any access in top 256M.
* ARC700 doesn't cache any access in top 1G (0xc000_0000 to 0xFFFF_FFFF)
* Ideal for wiring memory mapped peripherals as we don't need to do
* explicit uncached accesses (LD.di/ST.di) hence more portable drivers
*/
......
arch/arc/include/asm/current.h
View file @ 4257412d
......@@ -12,8 +12,6 @@
#ifndef _ASM_ARC_CURRENT_H
#define _ASM_ARC_CURRENT_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#ifdef CONFIG_ARC_CURR_IN_REG
......@@ -27,6 +25,4 @@ register struct task_struct *curr_arc asm("r25");
#endif /* ! __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_CURRENT_H */
arch/arc/include/asm/irqflags.h
View file @ 4257412d
......@@ -15,8 +15,6 @@
* -Conditionally disable interrupts (if they are not enabled, don't disable)
*/
#ifdef __KERNEL__
#include <asm/arcregs.h>
/* status32 Reg bits related to Interrupt Handling */
......@@ -169,6 +167,4 @@ static inline int arch_irqs_disabled(void)
#endif /* __ASSEMBLY__ */
#endif /* KERNEL */
#endif
arch/arc/include/asm/kgdb.h
View file @ 4257412d
......@@ -19,7 +19,7 @@
* register API yet */
#undef DBG_MAX_REG_NUM
#define GDB_MAX_REGS 39
#define GDB_MAX_REGS 87
#define BREAK_INSTR_SIZE 2
#define CACHE_FLUSH_IS_SAFE 1
......@@ -33,23 +33,27 @@ static inline void arch_kgdb_breakpoint(void)
extern void kgdb_trap(struct pt_regs *regs);
enum arc700_linux_regnums {
/* This is the numbering of registers according to the GDB. See GDB's
* arc-tdep.h for details.
*
* Registers are ordered for GDB 7.5. It is incompatible with GDB 6.8. */
enum arc_linux_regnums {
_R0 = 0,
_R1, _R2, _R3, _R4, _R5, _R6, _R7, _R8, _R9, _R10, _R11, _R12, _R13,
_R14, _R15, _R16, _R17, _R18, _R19, _R20, _R21, _R22, _R23, _R24,
_R25, _R26,
_BTA = 27,
_LP_START = 28,
_LP_END = 29,
_LP_COUNT = 30,
_STATUS32 = 31,
_BLINK = 32,
_FP = 33,
__SP = 34,
_EFA = 35,
_RET = 36,
_ORIG_R8 = 37,
_STOP_PC = 38
_FP = 27,
__SP = 28,
_R30 = 30,
_BLINK = 31,
_LP_COUNT = 60,
_STOP_PC = 64,
_RET = 64,
_LP_START = 65,
_LP_END = 66,
_STATUS32 = 67,
_ECR = 76,
_BTA = 82,
};
#else
......
arch/arc/include/asm/processor.h
View file @ 4257412d
......@@ -14,12 +14,19 @@
#ifndef __ASM_ARC_PROCESSOR_H
#define __ASM_ARC_PROCESSOR_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <asm/ptrace.h>
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/* Arch specific stuff which needs to be saved per task.
* However these items are not so important so as to earn a place in
* struct thread_info
......@@ -128,6 +135,4 @@ extern unsigned int get_wchan(struct task_struct *p);
*/
#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
#endif /* __KERNEL__ */
#endif /* __ASM_ARC_PROCESSOR_H */
arch/arc/include/asm/setup.h
View file @ 4257412d
......@@ -29,7 +29,6 @@ struct cpuinfo_data {
};
extern int root_mountflags, end_mem;
extern int running_on_hw;
void setup_processor(void);
void __init setup_arch_memory(void);
......
arch/arc/include/asm/smp.h
View file @ 4257412d
......@@ -59,7 +59,15 @@ struct plat_smp_ops {
/* TBD: stop exporting it for direct population by platform */
extern struct plat_smp_ops plat_smp_ops;
#endif /* CONFIG_SMP */
#else /* CONFIG_SMP */
static inline void smp_init_cpus(void) {}
static inline const char *arc_platform_smp_cpuinfo(void)
{
return "";
}
#endif /* !CONFIG_SMP */
/*
* ARC700 doesn't support atomic Read-Modify-Write ops.
......
arch/arc/include/asm/string.h
View file @ 4257412d
......@@ -17,8 +17,6 @@
#include <linux/types.h>
#ifdef __KERNEL__
#define __HAVE_ARCH_MEMSET
#define __HAVE_ARCH_MEMCPY
#define __HAVE_ARCH_MEMCMP
......@@ -36,5 +34,4 @@ extern char *strcpy(char *dest, const char *src);
extern int strcmp(const char *cs, const char *ct);
extern __kernel_size_t strlen(const char *);
#endif /* __KERNEL__ */
#endif /* _ASM_ARC_STRING_H */
arch/arc/include/asm/syscalls.h
View file @ 4257412d
......@@ -9,8 +9,6 @@
#ifndef _ASM_ARC_SYSCALLS_H
#define _ASM_ARC_SYSCALLS_H 1
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <linux/linkage.h>
#include <linux/types.h>
......@@ -22,6 +20,4 @@ int sys_arc_gettls(void);
#include <asm-generic/syscalls.h>
#endif /* __KERNEL__ */
#endif
arch/arc/include/asm/thread_info.h
View file @ 4257412d
......@@ -16,8 +16,6 @@
#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H
#ifdef __KERNEL__
#include <asm/page.h>
#ifdef CONFIG_16KSTACKS
......@@ -114,6 +112,4 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
* syscall, so all that reamins to be tested is _TIF_WORK_MASK
*/
#endif /* __KERNEL__ */
#endif /* _ASM_THREAD_INFO_H */
arch/arc/include/asm/unaligned.h
View file @ 4257412d
......@@ -14,7 +14,7 @@
#include <asm-generic/unaligned.h>
#include <asm/ptrace.h>
#ifdef CONFIG_ARC_MISALIGN_ACCESS
#ifdef CONFIG_ARC_EMUL_UNALIGNED
int misaligned_fixup(unsigned long address, struct pt_regs *regs,
struct callee_regs *cregs);
#else
......
arch/arc/kernel/Makefile
View file @ 4257412d
......@@ -16,7 +16,7 @@ obj-$(CONFIG_MODULES) += arcksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_ARC_DW2_UNWIND) += unwind.o
obj-$(CONFIG_KPROBES) += kprobes.o
obj-$(CONFIG_ARC_MISALIGN_ACCESS) += unaligned.o
obj-$(CONFIG_ARC_EMUL_UNALIGNED) += unaligned.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_ARC_METAWARE_HLINK) += arc_hostlink.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
......
arch/arc/kernel/disasm.c
View file @ 4257412d
......@@ -15,7 +15,7 @@
#include <linux/uaccess.h>
#include <asm/disasm.h>
#if defined(CONFIG_KGDB) || defined(CONFIG_ARC_MISALIGN_ACCESS) || \
#if defined(CONFIG_KGDB) || defined(CONFIG_ARC_EMUL_UNALIGNED) || \
defined(CONFIG_KPROBES)
/* disasm_instr: Analyses instruction at addr, stores
......@@ -535,4 +535,4 @@ int __kprobes disasm_next_pc(unsigned long pc, struct pt_regs *regs,
return instr.is_branch;
}
#endif /* CONFIG_KGDB || CONFIG_ARC_MISALIGN_ACCESS || CONFIG_KPROBES */
#endif /* CONFIG_KGDB || CONFIG_ARC_EMUL_UNALIGNED || CONFIG_KPROBES */
arch/arc/kernel/head.S
View file @ 4257412d
......@@ -91,16 +91,6 @@ stext:
st r0, [@uboot_tag]
st r2, [@uboot_arg]
; Identify if running on ISS vs Silicon
; IDENTITY Reg [ 3 2 1 0 ]
; (chip-id) ^^^^^ ==> 0xffff for ISS
lr r0, [identity]
lsr r3, r0, 16
cmp r3, 0xffff
mov.z r4, 0
mov.nz r4, 1
st r4, [@running_on_hw]
; setup "current" tsk and optionally cache it in dedicated r25
mov r9, @init_task
SET_CURR_TASK_ON_CPU r9, r0 ; r9 = tsk, r0 = scratch
......
arch/arc/kernel/kgdb.c
View file @ 4257412d
......@@ -158,11 +158,6 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
return -1;
}
unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs)
{
return instruction_pointer(regs);
}
int kgdb_arch_init(void)
{
single_step_data.armed = 0;
......
arch/arc/kernel/perf_event.c
View file @ 4257412d
......@@ -244,25 +244,23 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
pr_err("This core does not have performance counters!\n");
return -ENODEV;
}
BUG_ON(pct_bcr.c > ARC_PMU_MAX_HWEVENTS);
arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu),
GFP_KERNEL);
READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
if (!cc_bcr.v) {
pr_err("Performance counters exist, but no countable conditions?\n");
return -ENODEV;
}
arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu), GFP_KERNEL);
if (!arc_pmu)
return -ENOMEM;
arc_pmu->n_counters = pct_bcr.c;
BUG_ON(arc_pmu->n_counters > ARC_PMU_MAX_HWEVENTS);
arc_pmu->counter_size = 32 + (pct_bcr.s << 4);
pr_info("ARC PMU found with %d counters of size %d bits\n",
arc_pmu->n_counters, arc_pmu->counter_size);
READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
if (!cc_bcr.v)
pr_err("Strange! Performance counters exist, but no countable conditions?\n");
pr_info("ARC PMU has %d countable conditions\n", cc_bcr.c);
pr_info("ARC perf\t: %d counters (%d bits), %d countable conditions\n",
arc_pmu->n_counters, arc_pmu->counter_size, cc_bcr.c);
cc_name.str[8] = 0;
for (i = 0; i < PERF_COUNT_HW_MAX; i++)
......
arch/arc/kernel/setup.c
View file @ 4257412d
This diff is collapsed.
arch/arc/kernel/smp.c
View file @ 4257412d
......@@ -101,7 +101,7 @@ void __weak arc_platform_smp_wait_to_boot(int cpu)
const char *arc_platform_smp_cpuinfo(void)
{
return plat_smp_ops.info;
return plat_smp_ops.info ? : "";
}
/*
......
arch/arc/mm/cache_arc700.c
View file @ 4257412d
......@@ -530,16 +530,9 @@ EXPORT_SYMBOL(dma_cache_wback);
*/
void flush_icache_range(unsigned long kstart, unsigned long kend)
{
unsigned int tot_sz, off, sz;
unsigned long phy, pfn;
unsigned int tot_sz;
/* printk("Kernel Cache Cohenercy: %lx to %lx\n",kstart, kend); */
/* This is not the right API for user virtual address */
if (kstart < TASK_SIZE) {
BUG_ON("Flush icache range for user virtual addr space");
return;
}
WARN(kstart < TASK_SIZE, "%s() can't handle user vaddr", __func__);
/* Shortcut for bigger flush ranges.
* Here we don't care if this was kernel virtual or phy addr
......@@ -572,6 +565,9 @@ void flush_icache_range(unsigned long kstart, unsigned long kend)
* straddles across 2 virtual pages and hence need for loop
*/
while (tot_sz > 0) {
unsigned int off, sz;
unsigned long phy, pfn;
off = kstart % PAGE_SIZE;
pfn = vmalloc_to_pfn((void *)kstart);
phy = (pfn << PAGE_SHIFT) + off;
......
arch/arc/mm/tlb.c
View file @ 4257412d
......@@ -609,14 +609,12 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
int n = 0;
struct cpuinfo_arc_mmu *p_mmu = &cpuinfo_arc700[cpu_id].mmu;
n += scnprintf(buf + n, len - n, "ARC700 MMU [v%x]\t: %dk PAGE, ",
p_mmu->ver, TO_KB(p_mmu->pg_sz));
n += scnprintf(buf + n, len - n,
"J-TLB %d (%dx%d), uDTLB %d, uITLB %d, %s\n",
"MMU [v%x]\t: %dk PAGE, JTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
p_mmu->ver, TO_KB(p_mmu->pg_sz),
p_mmu->num_tlb, p_mmu->sets, p_mmu->ways,
p_mmu->u_dtlb, p_mmu->u_itlb,
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? "SASID" : "");
IS_ENABLED(CONFIG_ARC_MMU_SASID) ? ",SASID" : "");
return buf;
}
......
arch/arc/plat-arcfpga/Kconfig
View file @ 4257412d
......@@ -8,7 +8,7 @@
menuconfig ARC_PLAT_FPGA_LEGACY
bool "\"Legacy\" ARC FPGA dev Boards"
select ISS_SMP_EXTN if SMP
select ARC_HAS_COH_CACHES if SMP
help
Support for ARC development boards, provided by Synopsys.
These are based on FPGA or ISS. e.g.
......@@ -18,17 +18,6 @@ menuconfig ARC_PLAT_FPGA_LEGACY
if ARC_PLAT_FPGA_LEGACY
config ARC_BOARD_ANGEL4
bool "ARC Angel4"
default y
help
ARC Angel4 FPGA Ref Platform (Xilinx Virtex Based)
config ARC_BOARD_ML509
bool "ML509"
help
ARC ML509 FPGA Ref Platform (Xilinx Virtex-5 Based)
config ISS_SMP_EXTN
bool "ARC SMP Extensions (ISS Models only)"
default n
......
arch/arc/plat-arcfpga/include/plat/memmap.h deleted 100644 → 0
View file @ cc040ba2
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.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
* published by the Free Software Foundation.
*
* vineetg: Feb 2009
* -For AA4 board, System Memory Map for Peripherals etc
*/
#ifndef __PLAT_MEMMAP_H
#define __PLAT_MEMMAP_H
#define UART0_BASE 0xC0FC1000
#define UART1_BASE 0xC0FC1100
#define IDE_CONTROLLER_BASE 0xC0FC9000
#define AHB_PCI_HOST_BRG_BASE 0xC0FD0000
#define PGU_BASEADDR 0xC0FC8000
#define VLCK_ADDR 0xC0FCF028
#define BVCI_LAT_UNIT_BASE 0xC0FED000
#define PS2_BASE_ADDR 0xC0FCC000
#endif
arch/arc/plat-arcfpga/platform.c
View file @ 4257412d
......@@ -8,37 +8,9 @@
* published by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/console.h>
#include <linux/of_platform.h>
#include <asm/setup.h>
#include <asm/clk.h>
#include <asm/mach_desc.h>
#include <plat/memmap.h>
#include <plat/smp.h>
#include <plat/irq.h>
static void __init plat_fpga_early_init(void)
{
pr_info("[plat-arcfpga]: registering early dev resources\n");
#ifdef CONFIG_ISS_SMP_EXTN
iss_model_init_early_smp();
#endif
}
static void __init plat_fpga_populate_dev(void)
{
/*
* Traverses flattened DeviceTree - registering platform devices
* (if any) complete with their resources
*/
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
/*----------------------- Machine Descriptions ------------------------------
*
......@@ -48,41 +20,26 @@ static void __init plat_fpga_populate_dev(void)
* callback set, by matching the DT compatible name.
*/
static const char *aa4_compat[] __initconst = {
static const char *legacy_fpga_compat[] __initconst = {
"snps,arc-angel4",
NULL,
};
MACHINE_START(ANGEL4, "angel4")
.dt_compat = aa4_compat,
.init_early = plat_fpga_early_init,
.init_machine = plat_fpga_populate_dev,
#ifdef CONFIG_ISS_SMP_EXTN
.init_smp = iss_model_init_smp,
#endif
MACHINE_END
static const char *ml509_compat[] __initconst = {
"snps,arc-ml509",
NULL,
};
MACHINE_START(ML509, "ml509")
.dt_compat = ml509_compat,
.init_early = plat_fpga_early_init,
.init_machine = plat_fpga_populate_dev,
#ifdef CONFIG_SMP
MACHINE_START(LEGACY_FPGA, "legacy_fpga")
.dt_compat = legacy_fpga_compat,
#ifdef CONFIG_ISS_SMP_EXTN
.init_early = iss_model_init_early_smp,
.init_smp = iss_model_init_smp,
#endif
MACHINE_END
static const char *nsimosci_compat[] __initconst = {
static const char *simulation_compat[] __initconst = {
"snps,nsim",
"snps,nsimosci",
NULL,
};
MACHINE_START(NSIMOSCI, "nsimosci")
.dt_compat = nsimosci_compat,
.init_early = NULL,
.init_machine = plat_fpga_populate_dev,
MACHINE_START(SIMULATION, "simulation")
.dt_compat = simulation_compat,
MACHINE_END
arch/arc/plat-arcfpga/smp.c
View file @ 4257412d
......@@ -13,9 +13,10 @@
#include <linux/smp.h>
#include <linux/irq.h>
#include <plat/irq.h>
#include <plat/smp.h>
#define IDU_INTERRUPT_0 16
static char smp_cpuinfo_buf[128];
/*
......
arch/arc/plat-tb10x/Kconfig
View file @ 4257412d
......@@ -18,7 +18,6 @@
menuconfig ARC_PLAT_TB10X
bool "Abilis TB10x"
select COMMON_CLK
select PINCTRL
select PINCTRL_TB10X
select PINMUX
......
arch/arc/plat-tb10x/tb10x.c
View file @ 4257412d
......@@ -19,21 +19,9 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/of_platform.h>
#include <linux/clk-provider.h>
#include <linux/pinctrl/consumer.h>
#include <asm/mach_desc.h>
static void __init tb10x_platform_init(void)
{
of_clk_init(NULL);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *tb10x_compat[] __initdata = {
"abilis,arc-tb10x",
NULL,
......@@ -41,5 +29,4 @@ static const char *tb10x_compat[] __initdata = {
MACHINE_START(TB10x, "tb10x")
.dt_compat = tb10x_compat,
.init_machine = tb10x_platform_init,
MACHINE_END
arch/arm/configs/multi_v7_defconfig
View file @ 4257412d
......@@ -262,6 +262,7 @@ CONFIG_WATCHDOG=y
CONFIG_XILINX_WATCHDOG=y
CONFIG_ORION_WATCHDOG=y
CONFIG_SUNXI_WATCHDOG=y
CONFIG_MESON_WATCHDOG=y
CONFIG_MFD_AS3722=y
CONFIG_MFD_BCM590XX=y
CONFIG_MFD_CROS_EC=y
......
arch/arm/configs/omap2plus_defconfig
View file @ 4257412d
......@@ -86,7 +86,6 @@ CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_NETFILTER=y
CONFIG_CAN=m
CONFIG_CAN_C_CAN=m
......@@ -112,6 +111,7 @@ CONFIG_MTD_OOPS=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_ECC_BCH=y
CONFIG_MTD_NAND_OMAP2=y
CONFIG_MTD_ONENAND=y
CONFIG_MTD_ONENAND_VERIFY_WRITE=y
......@@ -317,7 +317,7 @@ CONFIG_EXT4_FS=y
CONFIG_FANOTIFY=y
CONFIG_QUOTA=y
CONFIG_QFMT_V2=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS4_FS=m
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_TMPFS=y
......
arch/arm/mach-highbank/highbank.c
View file @ 4257412d
......@@ -20,7 +20,7 @@
#include <linux/input.h>
#include <linux/io.h>
#include <linux/irqchip.h>
#include <linux/mailbox.h>
#include <linux/pl320-ipc.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
......
arch/arm/mach-omap2/omap_device.c
View file @ 4257412d
......@@ -917,6 +917,10 @@ static int __init omap_device_late_idle(struct device *dev, void *data)
static int __init omap_device_late_init(void)
{
bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle);
WARN(!of_have_populated_dt(),
"legacy booting deprecated, please update to boot with .dts\n");
return 0;
}
omap_late_initcall_sync(omap_device_late_init);
arch/arm64/Kconfig
View file @ 4257412d
config ARM64
def_bool y
select ARCH_BINFMT_ELF_RANDOMIZE_PIE
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
......@@ -232,7 +233,7 @@ config ARM64_VA_BITS_42
config ARM64_VA_BITS_48
bool "48-bit"
depends on BROKEN
depends on !ARM_SMMU
endchoice
......
arch/arm64/boot/dts/rtsm_ve-motherboard.dtsi
View file @ 4257412d
......@@ -22,7 +22,7 @@ flash@0,00000000 {
bank-width = <4>;
};
vram@2,00000000 {
v2m_video_ram: vram@2,00000000 {
compatible = "arm,vexpress-vram";
reg = <2 0x00000000 0x00800000>;
};
......@@ -179,9 +179,42 @@ rtc@170000 {
clcd@1f0000 {
compatible = "arm,pl111", "arm,primecell";
reg = <0x1f0000 0x1000>;
interrupt-names = "combined";
interrupts = <14>;
clocks = <&v2m_oscclk1>, <&v2m_clk24mhz>;
clock-names = "clcdclk", "apb_pclk";
arm,pl11x,framebuffer = <0x18000000 0x00180000>;
memory-region = <&v2m_video_ram>;
max-memory-bandwidth = <130000000>; /* 16bpp @ 63.5MHz */
port {
v2m_clcd_pads: endpoint {
remote-endpoint = <&v2m_clcd_panel>;
arm,pl11x,tft-r0g0b0-pads = <0 8 16>;
};
};
panel {
compatible = "panel-dpi";
port {
v2m_clcd_panel: endpoint {
remote-endpoint = <&v2m_clcd_pads>;
};
};
panel-timing {
clock-frequency = <63500127>;
hactive = <1024>;
hback-porch = <152>;
hfront-porch = <48>;
hsync-len = <104>;
vactive = <768>;
vback-porch = <23>;
vfront-porch = <3>;
vsync-len = <4>;
};
};
};
virtio_block@0130000 {
......
arch/arm64/configs/defconfig
View file @ 4257412d
......@@ -78,6 +78,7 @@ CONFIG_NET_XGENE=y
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_SERIO_SERPORT is not set
CONFIG_SERIO_AMBAKMI=y
CONFIG_LEGACY_PTY_COUNT=16
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
......@@ -90,6 +91,7 @@ CONFIG_VIRTIO_CONSOLE=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_FB=y
CONFIG_FB_ARMCLCD=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_LOGO_LINUX_MONO is not set
......
arch/arm64/include/asm/compat.h
View file @ 4257412d
......@@ -37,8 +37,8 @@ typedef s32 compat_ssize_t;
typedef s32 compat_time_t;
typedef s32 compat_clock_t;
typedef s32 compat_pid_t;
typedef u32 __compat_uid_t;
typedef u32 __compat_gid_t;
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
typedef u16 __compat_uid16_t;
typedef u16 __compat_gid16_t;
typedef u32 __compat_uid32_t;
......
arch/arm64/include/asm/elf.h
View file @ 4257412d
......@@ -126,7 +126,7 @@ typedef struct user_fpsimd_state elf_fpregset_t;
* that it will "exec", and that there is sufficient room for the brk.
*/
extern unsigned long randomize_et_dyn(unsigned long base);
#define ELF_ET_DYN_BASE (randomize_et_dyn(2 * TASK_SIZE_64 / 3))
#define ELF_ET_DYN_BASE (2 * TASK_SIZE_64 / 3)
/*
* When the program starts, a1 contains a pointer to a function to be
......@@ -169,7 +169,7 @@ extern unsigned long arch_randomize_brk(struct mm_struct *mm);
#define COMPAT_ELF_PLATFORM ("v8l")
#endif
#define COMPAT_ELF_ET_DYN_BASE (randomize_et_dyn(2 * TASK_SIZE_32 / 3))
#define COMPAT_ELF_ET_DYN_BASE (2 * TASK_SIZE_32 / 3)
/* AArch32 registers. */
#define COMPAT_ELF_NGREG 18
......
arch/arm64/include/asm/irq_work.h
View file @ 4257412d
#ifndef __ASM_IRQ_WORK_H
#define __ASM_IRQ_WORK_H
#ifdef CONFIG_SMP
#include <asm/smp.h>
static inline bool arch_irq_work_has_interrupt(void)
......@@ -8,4 +10,13 @@ static inline bool arch_irq_work_has_interrupt(void)
return !!__smp_cross_call;
}
#else
static inline bool arch_irq_work_has_interrupt(void)
{
return false;
}
#endif
#endif /* __ASM_IRQ_WORK_H */
arch/arm64/kernel/efi.c
View file @ 4257412d
......@@ -89,7 +89,8 @@ static int __init uefi_init(void)
*/
if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) {
pr_err("System table signature incorrect\n");
return -EINVAL;
retval = -EINVAL;
goto out;
}
if ((efi.systab->hdr.revision >> 16) < 2)
pr_warn("Warning: EFI system table version %d.%02d, expected 2.00 or greater\n",
......@@ -103,6 +104,7 @@ static int __init uefi_init(void)
for (i = 0; i < (int) sizeof(vendor) - 1 && *c16; ++i)
vendor[i] = c16[i];
vendor[i] = '\0';
early_memunmap(c16, sizeof(vendor));
}
pr_info("EFI v%u.%.02u by %s\n",
......@@ -113,29 +115,11 @@ static int __init uefi_init(void)
if (retval == 0)
set_bit(EFI_CONFIG_TABLES, &efi.flags);
early_memunmap(c16, sizeof(vendor));
out:
early_memunmap(efi.systab, sizeof(efi_system_table_t));
return retval;
}
static __initdata char memory_type_name[][32] = {
{"Reserved"},
{"Loader Code"},
{"Loader Data"},
{"Boot Code"},
{"Boot Data"},
{"Runtime Code"},
{"Runtime Data"},
{"Conventional Memory"},
{"Unusable Memory"},
{"ACPI Reclaim Memory"},
{"ACPI Memory NVS"},
{"Memory Mapped I/O"},
{"MMIO Port Space"},
{"PAL Code"},
};
/*
* Return true for RAM regions we want to permanently reserve.
*/
......@@ -166,10 +150,13 @@ static __init void reserve_regions(void)
paddr = md->phys_addr;
npages = md->num_pages;
if (uefi_debug)
pr_info(" 0x%012llx-0x%012llx [%s]",
if (uefi_debug) {
char buf[64];
pr_info(" 0x%012llx-0x%012llx %s",
paddr, paddr + (npages << EFI_PAGE_SHIFT) - 1,
memory_type_name[md->type]);
efi_md_typeattr_format(buf, sizeof(buf), md));
}
memrange_efi_to_native(&paddr, &npages);
size = npages << PAGE_SHIFT;
......@@ -393,11 +380,16 @@ static int __init arm64_enter_virtual_mode(void)
return -1;
}
pr_info("Remapping and enabling EFI services.\n");
/* replace early memmap mapping with permanent mapping */
mapsize = memmap.map_end - memmap.map;
early_memunmap(memmap.map, mapsize);
if (efi_runtime_disabled()) {
pr_info("EFI runtime services will be disabled.\n");
return -1;
}
pr_info("Remapping and enabling EFI services.\n");
/* replace early memmap mapping with permanent mapping */
memmap.map = (__force void *)ioremap_cache((phys_addr_t)memmap.phys_map,
mapsize);
memmap.map_end = memmap.map + mapsize;
......
arch/arm64/kernel/process.c
View file @ 4257412d
......@@ -378,8 +378,3 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
{
return randomize_base(mm->brk);
}
unsigned long randomize_et_dyn(unsigned long base)
{
return randomize_base(base);
}
arch/arm64/mm/ioremap.c
View file @ 4257412d
......@@ -105,10 +105,10 @@ EXPORT_SYMBOL(ioremap_cache);
static pte_t bm_pte[PTRS_PER_PTE] __page_aligned_bss;
#if CONFIG_ARM64_PGTABLE_LEVELS > 2
static pte_t bm_pmd[PTRS_PER_PMD] __page_aligned_bss;
static pmd_t bm_pmd[PTRS_PER_PMD] __page_aligned_bss;
#endif
#if CONFIG_ARM64_PGTABLE_LEVELS > 3
static pte_t bm_pud[PTRS_PER_PUD] __page_aligned_bss;
static pud_t bm_pud[PTRS_PER_PUD] __page_aligned_bss;
#endif
static inline pud_t * __init early_ioremap_pud(unsigned long addr)
......
arch/arm64/mm/mmu.c
View file @ 4257412d
......@@ -297,11 +297,15 @@ static void __init map_mem(void)
* create_mapping requires puds, pmds and ptes to be allocated from
* memory addressable from the initial direct kernel mapping.
*
* The initial direct kernel mapping, located at swapper_pg_dir,
* gives us PUD_SIZE memory starting from PHYS_OFFSET (which must be
* aligned to 2MB as per Documentation/arm64/booting.txt).
* The initial direct kernel mapping, located at swapper_pg_dir, gives
* us PUD_SIZE (4K pages) or PMD_SIZE (64K pages) memory starting from
* PHYS_OFFSET (which must be aligned to 2MB as per
* Documentation/arm64/booting.txt).
*/
limit = PHYS_OFFSET + PUD_SIZE;
if (IS_ENABLED(CONFIG_ARM64_64K_PAGES))
limit = PHYS_OFFSET + PMD_SIZE;
else
limit = PHYS_OFFSET + PUD_SIZE;
memblock_set_current_limit(limit);
/* map all the memory banks */
......
arch/arm64/mm/pgd.c
View file @ 4257412d
......@@ -30,12 +30,14 @@
#define PGD_SIZE (PTRS_PER_PGD * sizeof(pgd_t))
static struct kmem_cache *pgd_cache;
pgd_t *pgd_alloc(struct mm_struct *mm)
{
if (PGD_SIZE == PAGE_SIZE)
return (pgd_t *)get_zeroed_page(GFP_KERNEL);
else
return kzalloc(PGD_SIZE, GFP_KERNEL);
return kmem_cache_zalloc(pgd_cache, GFP_KERNEL);
}
void pgd_free(struct mm_struct *mm, pgd_t *pgd)
......@@ -43,5 +45,17 @@ void pgd_free(struct mm_struct *mm, pgd_t *pgd)
if (PGD_SIZE == PAGE_SIZE)
free_page((unsigned long)pgd);
else
kfree(pgd);
kmem_cache_free(pgd_cache, pgd);
}
static int __init pgd_cache_init(void)
{
/*
* Naturally aligned pgds required by the architecture.
*/
if (PGD_SIZE != PAGE_SIZE)
pgd_cache = kmem_cache_create("pgd_cache", PGD_SIZE, PGD_SIZE,
SLAB_PANIC, NULL);
return 0;
}
core_initcall(pgd_cache_init);
arch/arm64/net/bpf_jit.h
View file @ 4257412d
......@@ -144,8 +144,12 @@
/* Data-processing (2 source) */
/* Rd = Rn OP Rm */
#define A64_UDIV(sf, Rd, Rn, Rm) aarch64_insn_gen_data2(Rd, Rn, Rm, \
A64_VARIANT(sf), AARCH64_INSN_DATA2_UDIV)
#define A64_DATA2(sf, Rd, Rn, Rm, type) aarch64_insn_gen_data2(Rd, Rn, Rm, \
A64_VARIANT(sf), AARCH64_INSN_DATA2_##type)
#define A64_UDIV(sf, Rd, Rn, Rm) A64_DATA2(sf, Rd, Rn, Rm, UDIV)
#define A64_LSLV(sf, Rd, Rn, Rm) A64_DATA2(sf, Rd, Rn, Rm, LSLV)
#define A64_LSRV(sf, Rd, Rn, Rm) A64_DATA2(sf, Rd, Rn, Rm, LSRV)
#define A64_ASRV(sf, Rd, Rn, Rm) A64_DATA2(sf, Rd, Rn, Rm, ASRV)
/* Data-processing (3 source) */
/* Rd = Ra + Rn * Rm */
......
arch/arm64/net/bpf_jit_comp.c
View file @ 4257412d
......@@ -19,12 +19,13 @@
#define pr_fmt(fmt) "bpf_jit: " fmt
#include <linux/filter.h>
#include <linux/moduleloader.h>
#include <linux/printk.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <asm/byteorder.h>
#include <asm/cacheflush.h>
#include <asm/debug-monitors.h>
#include "bpf_jit.h"
......@@ -119,6 +120,14 @@ static inline int bpf2a64_offset(int bpf_to, int bpf_from,
return to - from;
}
static void jit_fill_hole(void *area, unsigned int size)
{
u32 *ptr;
/* We are guaranteed to have aligned memory. */
for (ptr = area; size >= sizeof(u32); size -= sizeof(u32))
*ptr++ = cpu_to_le32(AARCH64_BREAK_FAULT);
}
static inline int epilogue_offset(const struct jit_ctx *ctx)
{
int to = ctx->offset[ctx->prog->len - 1];
......@@ -196,6 +205,12 @@ static void build_epilogue(struct jit_ctx *ctx)
emit(A64_RET(A64_LR), ctx);
}
/* JITs an eBPF instruction.
* Returns:
* 0 - successfully JITed an 8-byte eBPF instruction.
* >0 - successfully JITed a 16-byte eBPF instruction.
* <0 - failed to JIT.
*/
static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
{
const u8 code = insn->code;
......@@ -252,6 +267,18 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
emit(A64_MUL(is64, tmp, tmp, src), ctx);
emit(A64_SUB(is64, dst, dst, tmp), ctx);
break;
case BPF_ALU | BPF_LSH | BPF_X:
case BPF_ALU64 | BPF_LSH | BPF_X:
emit(A64_LSLV(is64, dst, dst, src), ctx);
break;
case BPF_ALU | BPF_RSH | BPF_X:
case BPF_ALU64 | BPF_RSH | BPF_X:
emit(A64_LSRV(is64, dst, dst, src), ctx);
break;
case BPF_ALU | BPF_ARSH | BPF_X:
case BPF_ALU64 | BPF_ARSH | BPF_X:
emit(A64_ASRV(is64, dst, dst, src), ctx);
break;
/* dst = -dst */
case BPF_ALU | BPF_NEG:
case BPF_ALU64 | BPF_NEG:
......@@ -443,6 +470,27 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx)
emit(A64_B(jmp_offset), ctx);
break;
/* dst = imm64 */
case BPF_LD | BPF_IMM | BPF_DW:
{
const struct bpf_insn insn1 = insn[1];
u64 imm64;
if (insn1.code != 0 || insn1.src_reg != 0 ||
insn1.dst_reg != 0 || insn1.off != 0) {
/* Note: verifier in BPF core must catch invalid
* instructions.
*/
pr_err_once("Invalid BPF_LD_IMM64 instruction\n");
return -EINVAL;
}
imm64 = (u64)insn1.imm << 32 | imm;
emit_a64_mov_i64(dst, imm64, ctx);
return 1;
}
/* LDX: dst = *(size *)(src + off) */
case BPF_LDX | BPF_MEM | BPF_W:
case BPF_LDX | BPF_MEM | BPF_H:
......@@ -594,6 +642,10 @@ static int build_body(struct jit_ctx *ctx)
ctx->offset[i] = ctx->idx;
ret = build_insn(insn, ctx);
if (ret > 0) {
i++;
continue;
}
if (ret)
return ret;
}
......@@ -613,8 +665,10 @@ void bpf_jit_compile(struct bpf_prog *prog)
void bpf_int_jit_compile(struct bpf_prog *prog)
{
struct bpf_binary_header *header;
struct jit_ctx ctx;
int image_size;
u8 *image_ptr;
if (!bpf_jit_enable)
return;
......@@ -636,23 +690,25 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
goto out;
build_prologue(&ctx);
build_epilogue(&ctx);
/* Now we know the actual image size. */
image_size = sizeof(u32) * ctx.idx;
ctx.image = module_alloc(image_size);
if (unlikely(ctx.image == NULL))
header = bpf_jit_binary_alloc(image_size, &image_ptr,
sizeof(u32), jit_fill_hole);
if (header == NULL)
goto out;
/* 2. Now, the actual pass. */
ctx.image = (u32 *)image_ptr;
ctx.idx = 0;
build_prologue(&ctx);
ctx.body_offset = ctx.idx;
if (build_body(&ctx)) {
module_free(NULL, ctx.image);
bpf_jit_binary_free(header);
goto out;
}
......@@ -663,17 +719,25 @@ void bpf_int_jit_compile(struct bpf_prog *prog)
bpf_jit_dump(prog->len, image_size, 2, ctx.image);
bpf_flush_icache(ctx.image, ctx.image + ctx.idx);
prog->bpf_func = (void *)ctx.image;
prog->jited = 1;
set_memory_ro((unsigned long)header, header->pages);
prog->bpf_func = (void *)ctx.image;
prog->jited = true;
out:
kfree(ctx.offset);
}
void bpf_jit_free(struct bpf_prog *prog)
{
if (prog->jited)
module_free(NULL, prog->bpf_func);
unsigned long addr = (unsigned long)prog->bpf_func & PAGE_MASK;
struct bpf_binary_header *header = (void *)addr;
if (!prog->jited)
goto free_filter;
set_memory_rw(addr, header->pages);
bpf_jit_binary_free(header);
kfree(prog);
free_filter:
bpf_prog_unlock_free(prog);
}
arch/ia64/kernel/efi.c
View file @ 4257412d
......@@ -568,6 +568,7 @@ efi_init (void)
{
const char *unit;
unsigned long size;
char buf[64];
md = p;
size = md->num_pages << EFI_PAGE_SHIFT;
......@@ -586,9 +587,10 @@ efi_init (void)
unit = "KB";
}
printk("mem%02d: type=%2u, attr=0x%016lx, "
printk("mem%02d: %s "
"range=[0x%016lx-0x%016lx) (%4lu%s)\n",
i, md->type, md->attribute, md->phys_addr,
i, efi_md_typeattr_format(buf, sizeof(buf), md),
md->phys_addr,
md->phys_addr + efi_md_size(md), size, unit);
}
}
......
arch/mips/Kconfig
View file @ 4257412d
......@@ -2066,6 +2066,7 @@ config MIPS_CPS
support is unavailable.
config MIPS_CPS_PM
depends on MIPS_CPS
select MIPS_CPC
bool
......
arch/mips/ath79/mach-db120.c
View file @ 4257412d
......@@ -113,7 +113,7 @@ static void __init db120_pci_init(u8 *eeprom)
ath79_register_pci();
}
#else
static inline void db120_pci_init(void) {}
static inline void db120_pci_init(u8 *eeprom) {}
#endif /* CONFIG_PCI */
static void __init db120_setup(void)
......
arch/mips/cavium-octeon/setup.c
View file @ 4257412d
......@@ -806,15 +806,6 @@ void __init prom_init(void)
#endif
}
if (octeon_is_simulation()) {
/*
* The simulator uses a mtdram device pre filled with
* the filesystem. Also specify the calibration delay
* to avoid calculating it every time.
*/
strcat(arcs_cmdline, " rw root=1f00 slram=root,0x40000000,+1073741824");
}
mips_hpt_frequency = octeon_get_clock_rate();
octeon_init_cvmcount();
......
arch/mips/include/asm/cop2.h
View file @ 4257412d
......@@ -37,15 +37,15 @@ extern void nlm_cop2_restore(struct nlm_cop2_state *);
#define cop2_present 1
#define cop2_lazy_restore 1
#define cop2_save(r) do { (r); } while (0)
#define cop2_restore(r) do { (r); } while (0)
#define cop2_save(r) do { (void)(r); } while (0)
#define cop2_restore(r) do { (void)(r); } while (0)
#else
#define cop2_present 0
#define cop2_lazy_restore 0
#define cop2_save(r) do { (r); } while (0)
#define cop2_restore(r) do { (r); } while (0)
#define cop2_save(r) do { (void)(r); } while (0)
#define cop2_restore(r) do { (void)(r); } while (0)
#endif
enum cu2_ops {
......
arch/mips/include/asm/ftrace.h
View file @ 4257412d
......@@ -24,7 +24,7 @@ do { \
asm volatile ( \
"1: " load " %[tmp_dst], 0(%[tmp_src])\n" \
" li %[tmp_err], 0\n" \
"2:\n" \
"2: .insn\n" \
\
".section .fixup, \"ax\"\n" \
"3: li %[tmp_err], 1\n" \
......@@ -46,7 +46,7 @@ do { \
asm volatile ( \
"1: " store " %[tmp_src], 0(%[tmp_dst])\n"\
" li %[tmp_err], 0\n" \
"2:\n" \
"2: .insn\n" \
\
".section .fixup, \"ax\"\n" \
"3: li %[tmp_err], 1\n" \
......
arch/mips/include/asm/idle.h
View file @ 4257412d
......@@ -8,19 +8,12 @@ extern void (*cpu_wait)(void);
extern void r4k_wait(void);
extern asmlinkage void __r4k_wait(void);
extern void r4k_wait_irqoff(void);
extern void __pastwait(void);
static inline int using_rollback_handler(void)
{
return cpu_wait == r4k_wait;
}
static inline int address_is_in_r4k_wait_irqoff(unsigned long addr)
{
return addr >= (unsigned long)r4k_wait_irqoff &&
addr < (unsigned long)__pastwait;
}
extern int mips_cpuidle_wait_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
......
arch/mips/include/uapi/asm/ptrace.h
View file @ 4257412d
......@@ -9,6 +9,8 @@
#ifndef _UAPI_ASM_PTRACE_H
#define _UAPI_ASM_PTRACE_H
#include <linux/types.h>
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
#define FPR_BASE 32
#define PC 64
......
arch/mips/kernel/idle.c
View file @ 4257412d
......@@ -68,9 +68,6 @@ void r4k_wait_irqoff(void)
" wait \n"
" .set pop \n");
local_irq_enable();
__asm__(
" .globl __pastwait \n"
"__pastwait: \n");
}
/*
......
arch/mips/lasat/Kconfig
View file @ 4257412d
......@@ -4,7 +4,7 @@ config PICVUE
config PICVUE_PROC
tristate "PICVUE LCD display driver /proc interface"
depends on PICVUE
depends on PICVUE && PROC_FS
config DS1603
bool "DS1603 RTC driver"
......
arch/mips/loongson/lemote-2f/clock.c
View file @ 4257412d
......@@ -91,6 +91,7 @@ EXPORT_SYMBOL(clk_put);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
unsigned int rate_khz = rate / 1000;
struct cpufreq_frequency_table *pos;
int ret = 0;
int regval;
......@@ -107,9 +108,9 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
propagate_rate(clk);
cpufreq_for_each_valid_entry(pos, loongson2_clockmod_table)
if (rate == pos->frequency)
if (rate_khz == pos->frequency)
break;
if (rate != pos->frequency)
if (rate_khz != pos->frequency)
return -ENOTSUPP;
clk->rate = rate;
......
arch/mips/math-emu/cp1emu.c
View file @ 4257412d
......@@ -1023,7 +1023,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
goto emul;
case cop1x_op:
if (cpu_has_mips_4_5 || cpu_has_mips64)
if (cpu_has_mips_4_5 || cpu_has_mips64 || cpu_has_mips32r2)
/* its one of ours */
goto emul;
......@@ -1068,7 +1068,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
break;
case cop1x_op:
if (!cpu_has_mips_4_5 && !cpu_has_mips64)
if (!cpu_has_mips_4_5 && !cpu_has_mips64 && !cpu_has_mips32r2)
return SIGILL;
sig = fpux_emu(xcp, ctx, ir, fault_addr);
......
arch/mips/mm/tlbex.c
View file @ 4257412d
......@@ -1062,6 +1062,7 @@ static void build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep)
struct mips_huge_tlb_info {
int huge_pte;
int restore_scratch;
bool need_reload_pte;
};
static struct mips_huge_tlb_info
......@@ -1076,6 +1077,7 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l,
rv.huge_pte = scratch;
rv.restore_scratch = 0;
rv.need_reload_pte = false;
if (check_for_high_segbits) {
UASM_i_MFC0(p, tmp, C0_BADVADDR);
......@@ -1264,6 +1266,7 @@ static void build_r4000_tlb_refill_handler(void)
} else {
htlb_info.huge_pte = K0;
htlb_info.restore_scratch = 0;
htlb_info.need_reload_pte = true;
vmalloc_mode = refill_noscratch;
/*
* create the plain linear handler
......@@ -1300,7 +1303,8 @@ static void build_r4000_tlb_refill_handler(void)
}
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
uasm_l_tlb_huge_update(&l, p);
UASM_i_LW(&p, K0, 0, K1);
if (htlb_info.need_reload_pte)
UASM_i_LW(&p, htlb_info.huge_pte, 0, K1);
build_huge_update_entries(&p, htlb_info.huge_pte, K1);
build_huge_tlb_write_entry(&p, &l, &r, K0, tlb_random,
htlb_info.restore_scratch);
......
arch/mips/mti-malta/Makefile
View file @ 4257412d
......@@ -5,8 +5,9 @@
# Copyright (C) 2008 Wind River Systems, Inc.
# written by Ralf Baechle <ralf@linux-mips.org>
#
obj-y := malta-amon.o malta-display.o malta-init.o \
obj-y := malta-display.o malta-init.o \
malta-int.o malta-memory.o malta-platform.o \
malta-reset.o malta-setup.o malta-time.o
obj-$(CONFIG_MIPS_CMP) += malta-amon.o
obj-$(CONFIG_MIPS_MALTA_PM) += malta-pm.o
arch/mips/mti-sead3/Makefile
View file @ 4257412d
......@@ -14,7 +14,6 @@ obj-y := sead3-lcd.o sead3-display.o sead3-init.o \
sead3-setup.o sead3-time.o
obj-y += sead3-i2c-dev.o sead3-i2c.o \
sead3-pic32-i2c-drv.o sead3-pic32-bus.o \
leds-sead3.o sead3-leds.o
obj-$(CONFIG_EARLY_PRINTK) += sead3-console.o
......
arch/mips/mti-sead3/sead3-i2c.c
View file @ 4257412d
......@@ -5,10 +5,8 @@
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <irq.h>
struct resource sead3_i2c_resources[] = {
{
......@@ -30,8 +28,4 @@ static int __init sead3_i2c_init(void)
return platform_device_register(&sead3_i2c_device);
}
module_init(sead3_i2c_init);
MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("I2C probe driver for SEAD3");
device_initcall(sead3_i2c_init);
arch/mips/mti-sead3/sead3-pic32-bus.c deleted 100644 → 0
View file @ cc040ba2
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/errno.h>
#define PIC32_NULL 0x00
#define PIC32_RD 0x01
#define PIC32_SYSRD 0x02
#define PIC32_WR 0x10
#define PIC32_SYSWR 0x20
#define PIC32_IRQ_CLR 0x40
#define PIC32_STATUS 0x80
#define DELAY() udelay(100) /* FIXME: needed? */
/* spinlock to ensure atomic access to PIC32 */
static DEFINE_SPINLOCK(pic32_bus_lock);
/* FIXME: io_remap these */
static void __iomem *bus_xfer = (void __iomem *)0xbf000600;
static void __iomem *bus_status = (void __iomem *)0xbf000060;
static inline unsigned int ioready(void)
{
return readl(bus_status) & 1;
}
static inline void wait_ioready(void)
{
do { } while (!ioready());
}
static inline void wait_ioclear(void)
{
do { } while (ioready());
}
static inline void check_ioclear(void)
{
if (ioready()) {
pr_debug("ioclear: initially busy\n");
do {
(void) readl(bus_xfer);
DELAY();
} while (ioready());
pr_debug("ioclear: cleared busy\n");
}
}
u32 pic32_bus_readl(u32 reg)
{
unsigned long flags;
u32 status, val;
spin_lock_irqsave(&pic32_bus_lock, flags);
check_ioclear();
writel((PIC32_RD << 24) | (reg & 0x00ffffff), bus_xfer);
DELAY();
wait_ioready();
status = readl(bus_xfer);
DELAY();
val = readl(bus_xfer);
wait_ioclear();
pr_debug("pic32_bus_readl: *%x -> %x (status=%x)\n", reg, val, status);
spin_unlock_irqrestore(&pic32_bus_lock, flags);
return val;
}
void pic32_bus_writel(u32 val, u32 reg)
{
unsigned long flags;
u32 status;
spin_lock_irqsave(&pic32_bus_lock, flags);
check_ioclear();
writel((PIC32_WR << 24) | (reg & 0x00ffffff), bus_xfer);
DELAY();
writel(val, bus_xfer);
DELAY();
wait_ioready();
status = readl(bus_xfer);
wait_ioclear();
pr_debug("pic32_bus_writel: *%x <- %x (status=%x)\n", reg, val, status);
spin_unlock_irqrestore(&pic32_bus_lock, flags);
}
arch/mips/mti-sead3/sead3-pic32-i2c-drv.c deleted 100644 → 0
View file @ cc040ba2
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
*/
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#define PIC32_I2CxCON 0x0000
#define PIC32_I2CxCONCLR 0x0004
#define PIC32_I2CxCONSET 0x0008
#define PIC32_I2CxCONINV 0x000C
#define I2CCON_ON (1<<15)
#define I2CCON_FRZ (1<<14)
#define I2CCON_SIDL (1<<13)
#define I2CCON_SCLREL (1<<12)
#define I2CCON_STRICT (1<<11)
#define I2CCON_A10M (1<<10)
#define I2CCON_DISSLW (1<<9)
#define I2CCON_SMEN (1<<8)
#define I2CCON_GCEN (1<<7)
#define I2CCON_STREN (1<<6)
#define I2CCON_ACKDT (1<<5)
#define I2CCON_ACKEN (1<<4)
#define I2CCON_RCEN (1<<3)
#define I2CCON_PEN (1<<2)
#define I2CCON_RSEN (1<<1)
#define I2CCON_SEN (1<<0)
#define PIC32_I2CxSTAT 0x0010
#define PIC32_I2CxSTATCLR 0x0014
#define PIC32_I2CxSTATSET 0x0018
#define PIC32_I2CxSTATINV 0x001C
#define I2CSTAT_ACKSTAT (1<<15)
#define I2CSTAT_TRSTAT (1<<14)
#define I2CSTAT_BCL (1<<10)
#define I2CSTAT_GCSTAT (1<<9)
#define I2CSTAT_ADD10 (1<<8)
#define I2CSTAT_IWCOL (1<<7)
#define I2CSTAT_I2COV (1<<6)
#define I2CSTAT_DA (1<<5)
#define I2CSTAT_P (1<<4)
#define I2CSTAT_S (1<<3)
#define I2CSTAT_RW (1<<2)
#define I2CSTAT_RBF (1<<1)
#define I2CSTAT_TBF (1<<0)
#define PIC32_I2CxADD 0x0020
#define PIC32_I2CxADDCLR 0x0024
#define PIC32_I2CxADDSET 0x0028
#define PIC32_I2CxADDINV 0x002C
#define PIC32_I2CxMSK 0x0030
#define PIC32_I2CxMSKCLR 0x0034
#define PIC32_I2CxMSKSET 0x0038
#define PIC32_I2CxMSKINV 0x003C
#define PIC32_I2CxBRG 0x0040
#define PIC32_I2CxBRGCLR 0x0044
#define PIC32_I2CxBRGSET 0x0048
#define PIC32_I2CxBRGINV 0x004C
#define PIC32_I2CxTRN 0x0050
#define PIC32_I2CxTRNCLR 0x0054
#define PIC32_I2CxTRNSET 0x0058
#define PIC32_I2CxTRNINV 0x005C
#define PIC32_I2CxRCV 0x0060
struct i2c_platform_data {
u32 base;
struct i2c_adapter adap;
u32 xfer_timeout;
u32 ack_timeout;
u32 ctl_timeout;
};
extern u32 pic32_bus_readl(u32 reg);
extern void pic32_bus_writel(u32 val, u32 reg);
static inline void
StartI2C(struct i2c_platform_data *adap)
{
pr_debug("StartI2C\n");
pic32_bus_writel(I2CCON_SEN, adap->base + PIC32_I2CxCONSET);
}
static inline void
StopI2C(struct i2c_platform_data *adap)
{
pr_debug("StopI2C\n");
pic32_bus_writel(I2CCON_PEN, adap->base + PIC32_I2CxCONSET);
}
static inline void
AckI2C(struct i2c_platform_data *adap)
{
pr_debug("AckI2C\n");
pic32_bus_writel(I2CCON_ACKDT, adap->base + PIC32_I2CxCONCLR);
pic32_bus_writel(I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
}
static inline void
NotAckI2C(struct i2c_platform_data *adap)
{
pr_debug("NakI2C\n");
pic32_bus_writel(I2CCON_ACKDT, adap->base + PIC32_I2CxCONSET);
pic32_bus_writel(I2CCON_ACKEN, adap->base + PIC32_I2CxCONSET);
}
static inline int
IdleI2C(struct i2c_platform_data *adap)
{
int i;
pr_debug("IdleI2C\n");
for (i = 0; i < adap->ctl_timeout; i++) {
if (((pic32_bus_readl(adap->base + PIC32_I2CxCON) &
(I2CCON_ACKEN | I2CCON_RCEN | I2CCON_PEN | I2CCON_RSEN |
I2CCON_SEN)) == 0) &&
((pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
(I2CSTAT_TRSTAT)) == 0))
return 0;
udelay(1);
}
return -ETIMEDOUT;
}
static inline u32
MasterWriteI2C(struct i2c_platform_data *adap, u32 byte)
{
pr_debug("MasterWriteI2C\n");
pic32_bus_writel(byte, adap->base + PIC32_I2CxTRN);
return pic32_bus_readl(adap->base + PIC32_I2CxSTAT) & I2CSTAT_IWCOL;
}
static inline u32
MasterReadI2C(struct i2c_platform_data *adap)
{
pr_debug("MasterReadI2C\n");
pic32_bus_writel(I2CCON_RCEN, adap->base + PIC32_I2CxCONSET);
while (pic32_bus_readl(adap->base + PIC32_I2CxCON) & I2CCON_RCEN)
;
pic32_bus_writel(I2CSTAT_I2COV, adap->base + PIC32_I2CxSTATCLR);
return pic32_bus_readl(adap->base + PIC32_I2CxRCV);
}
static int
do_address(struct i2c_platform_data *adap, unsigned int addr, int rd)
{
pr_debug("doaddress\n");
IdleI2C(adap);
StartI2C(adap);
IdleI2C(adap);
addr <<= 1;
if (rd)
addr |= 1;
if (MasterWriteI2C(adap, addr))
return -EIO;
IdleI2C(adap);
if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) & I2CSTAT_ACKSTAT)
return -EIO;
return 0;
}
static int
i2c_read(struct i2c_platform_data *adap, unsigned char *buf,
unsigned int len)
{
int i;
u32 data;
pr_debug("i2c_read\n");
i = 0;
while (i < len) {
data = MasterReadI2C(adap);
buf[i++] = data;
if (i < len)
AckI2C(adap);
else
NotAckI2C(adap);
}
StopI2C(adap);
IdleI2C(adap);
return 0;
}
static int
i2c_write(struct i2c_platform_data *adap, unsigned char *buf,
unsigned int len)
{
int i;
u32 data;
pr_debug("i2c_write\n");
i = 0;
while (i < len) {
data = buf[i];
if (MasterWriteI2C(adap, data))
return -EIO;
IdleI2C(adap);
if (pic32_bus_readl(adap->base + PIC32_I2CxSTAT) &
I2CSTAT_ACKSTAT)
return -EIO;
i++;
}
StopI2C(adap);
IdleI2C(adap);
return 0;
}
static int
platform_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int num)
{
struct i2c_platform_data *adap = i2c_adap->algo_data;
struct i2c_msg *p;
int i, err = 0;
pr_debug("platform_xfer\n");
for (i = 0; i < num; i++) {
#define __BUFSIZE 80
int ii;
static char buf[__BUFSIZE];
char *b = buf;
p = &msgs[i];
b += sprintf(buf, " [%d bytes]", p->len);
if ((p->flags & I2C_M_RD) == 0) {
for (ii = 0; ii < p->len; ii++) {
if (b < &buf[__BUFSIZE-4]) {
b += sprintf(b, " %02x", p->buf[ii]);
} else {
strcat(b, "...");
break;
}
}
}
pr_debug("xfer%d: DevAddr: %04x Op:%s Data:%s\n", i, p->addr,
(p->flags & I2C_M_RD) ? "Rd" : "Wr", buf);
}
for (i = 0; !err && i < num; i++) {
p = &msgs[i];
err = do_address(adap, p->addr, p->flags & I2C_M_RD);
if (err || !p->len)
continue;
if (p->flags & I2C_M_RD)
err = i2c_read(adap, p->buf, p->len);
else
err = i2c_write(adap, p->buf, p->len);
}
/* Return the number of messages processed, or the error code. */
if (err == 0)
err = num;
return err;
}
static u32
platform_func(struct i2c_adapter *adap)
{
pr_debug("platform_algo\n");
return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
}
static const struct i2c_algorithm platform_algo = {
.master_xfer = platform_xfer,
.functionality = platform_func,
};
static void i2c_platform_setup(struct i2c_platform_data *priv)
{
pr_debug("i2c_platform_setup\n");
pic32_bus_writel(500, priv->base + PIC32_I2CxBRG);
pic32_bus_writel(I2CCON_ON, priv->base + PIC32_I2CxCONCLR);
pic32_bus_writel(I2CCON_ON, priv->base + PIC32_I2CxCONSET);
pic32_bus_writel((I2CSTAT_BCL | I2CSTAT_IWCOL),
(priv->base + PIC32_I2CxSTATCLR));
}
static void i2c_platform_disable(struct i2c_platform_data *priv)
{
pr_debug("i2c_platform_disable\n");
}
static int i2c_platform_probe(struct platform_device *pdev)
{
struct i2c_platform_data *priv;
struct resource *r;
int ret;
pr_debug("i2c_platform_probe\n");
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!r)
return -ENODEV;
priv = devm_kzalloc(&pdev->dev, sizeof(struct i2c_platform_data),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
/* FIXME: need to allocate resource in PIC32 space */
#if 0
priv->base = bus_request_region(r->start, resource_size(r),
pdev->name);
#else
priv->base = r->start;
#endif
if (!priv->base)
return -EBUSY;
priv->xfer_timeout = 200;
priv->ack_timeout = 200;
priv->ctl_timeout = 200;
priv->adap.nr = pdev->id;
priv->adap.algo = &platform_algo;
priv->adap.algo_data = priv;
priv->adap.dev.parent = &pdev->dev;
strlcpy(priv->adap.name, "PIC32 I2C", sizeof(priv->adap.name));
i2c_platform_setup(priv);
ret = i2c_add_numbered_adapter(&priv->adap);
if (ret) {
i2c_platform_disable(priv);
return ret;
}
platform_set_drvdata(pdev, priv);
return 0;
}
static int i2c_platform_remove(struct platform_device *pdev)
{
struct i2c_platform_data *priv = platform_get_drvdata(pdev);
pr_debug("i2c_platform_remove\n");
platform_set_drvdata(pdev, NULL);
i2c_del_adapter(&priv->adap);
i2c_platform_disable(priv);
return 0;
}
#ifdef CONFIG_PM
static int
i2c_platform_suspend(struct platform_device *pdev, pm_message_t state)
{
struct i2c_platform_data *priv = platform_get_drvdata(pdev);
dev_dbg(&pdev->dev, "i2c_platform_disable\n");
i2c_platform_disable(priv);
return 0;
}
static int
i2c_platform_resume(struct platform_device *pdev)
{
struct i2c_platform_data *priv = platform_get_drvdata(pdev);
dev_dbg(&pdev->dev, "i2c_platform_setup\n");
i2c_platform_setup(priv);
return 0;
}
#else
#define i2c_platform_suspend NULL
#define i2c_platform_resume NULL
#endif
static struct platform_driver i2c_platform_driver = {
.driver = {
.name = "i2c_pic32",
.owner = THIS_MODULE,
},
.probe = i2c_platform_probe,
.remove = i2c_platform_remove,
.suspend = i2c_platform_suspend,
.resume = i2c_platform_resume,
};
static int __init
i2c_platform_init(void)
{
pr_debug("i2c_platform_init\n");
return platform_driver_register(&i2c_platform_driver);
}
static void __exit
i2c_platform_exit(void)
{
pr_debug("i2c_platform_exit\n");
platform_driver_unregister(&i2c_platform_driver);
}
MODULE_AUTHOR("Chris Dearman, MIPS Technologies INC.");
MODULE_DESCRIPTION("PIC32 I2C driver");
MODULE_LICENSE("GPL");
module_init(i2c_platform_init);
module_exit(i2c_platform_exit);
arch/mips/pci/pci-lantiq.c
View file @ 4257412d
......@@ -215,17 +215,12 @@ static int ltq_pci_probe(struct platform_device *pdev)
pci_clear_flags(PCI_PROBE_ONLY);
res_cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
res_bridge = platform_get_resource(pdev, IORESOURCE_MEM, 1);
if (!res_cfg || !res_bridge) {
dev_err(&pdev->dev, "missing memory resources\n");
return -EINVAL;
}
ltq_pci_membase = devm_ioremap_resource(&pdev->dev, res_bridge);
if (IS_ERR(ltq_pci_membase))
return PTR_ERR(ltq_pci_membase);
res_cfg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ltq_pci_mapped_cfg = devm_ioremap_resource(&pdev->dev, res_cfg);
if (IS_ERR(ltq_pci_mapped_cfg))
return PTR_ERR(ltq_pci_mapped_cfg);
......
arch/mips/pmcs-msp71xx/msp_irq.c
View file @ 4257412d
......@@ -16,6 +16,7 @@
#include <linux/time.h>
#include <asm/irq_cpu.h>
#include <asm/setup.h>
#include <msp_int.h>
......
arch/mips/pmcs-msp71xx/msp_irq_cic.c
View file @ 4257412d
......@@ -131,11 +131,11 @@ static int msp_cic_irq_set_affinity(struct irq_data *d,
int cpu;
unsigned long flags;
unsigned int mtflags;
unsigned long imask = (1 << (irq - MSP_CIC_INTBASE));
unsigned long imask = (1 << (d->irq - MSP_CIC_INTBASE));
volatile u32 *cic_mask = (volatile u32 *)CIC_VPE0_MSK_REG;
/* timer balancing should be disabled in kernel code */
BUG_ON(irq == MSP_INT_VPE0_TIMER || irq == MSP_INT_VPE1_TIMER);
BUG_ON(d->irq == MSP_INT_VPE0_TIMER || d->irq == MSP_INT_VPE1_TIMER);
LOCK_CORE(flags, mtflags);
/* enable if any of each VPE's TCs require this IRQ */
......
arch/mips/sibyte/Makefile
View file @ 4257412d
......@@ -25,3 +25,4 @@ obj-$(CONFIG_SIBYTE_RHONE) += swarm/
obj-$(CONFIG_SIBYTE_SENTOSA) += swarm/
obj-$(CONFIG_SIBYTE_SWARM) += swarm/
obj-$(CONFIG_SIBYTE_BIGSUR) += swarm/
obj-$(CONFIG_SIBYTE_LITTLESUR) += swarm/
arch/powerpc/configs/pseries_le_defconfig
View file @ 4257412d
......@@ -48,7 +48,6 @@ CONFIG_KEXEC=y
CONFIG_IRQ_ALL_CPUS=y
CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_CMA=y
CONFIG_PPC_64K_PAGES=y
CONFIG_PPC_SUBPAGE_PROT=y
CONFIG_SCHED_SMT=y
......@@ -138,6 +137,7 @@ CONFIG_NETCONSOLE=y
CONFIG_NETPOLL_TRAP=y
CONFIG_TUN=m
CONFIG_VIRTIO_NET=m
CONFIG_VHOST_NET=m
CONFIG_VORTEX=y
CONFIG_ACENIC=m
CONFIG_ACENIC_OMIT_TIGON_I=y
......@@ -303,4 +303,9 @@ CONFIG_CRYPTO_LZO=m
# CONFIG_CRYPTO_ANSI_CPRNG is not set
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM_BOOK3S_64=m
CONFIG_KVM_BOOK3S_64_HV=y
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
arch/powerpc/include/asm/eeh.h
View file @ 4257412d
......@@ -71,9 +71,10 @@ struct device_node;
#define EEH_PE_ISOLATED (1 << 0) /* Isolated PE */
#define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */
#define EEH_PE_RESET (1 << 2) /* PE reset in progress */
#define EEH_PE_CFG_BLOCKED (1 << 2) /* Block config access */
#define EEH_PE_KEEP (1 << 8) /* Keep PE on hotplug */
#define EEH_PE_CFG_RESTRICTED (1 << 9) /* Block config on error */
struct eeh_pe {
int type; /* PE type: PHB/Bus/Device */
......
arch/powerpc/include/asm/perf_event.h
View file @ 4257412d
......@@ -34,7 +34,7 @@
do { \
(regs)->result = 0; \
(regs)->nip = __ip; \
(regs)->gpr[1] = *(unsigned long *)__get_SP(); \
(regs)->gpr[1] = current_stack_pointer(); \
asm volatile("mfmsr %0" : "=r" ((regs)->msr)); \
} while (0)
#endif
arch/powerpc/include/asm/reg.h
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......@@ -1265,8 +1265,7 @@ static inline unsigned long mfvtb (void)
#define proc_trap() asm volatile("trap")
#define __get_SP() ({unsigned long sp; \
asm volatile("mr %0,1": "=r" (sp)); sp;})
extern unsigned long current_stack_pointer(void);
extern unsigned long scom970_read(unsigned int address);
extern void scom970_write(unsigned int address, unsigned long value);
......
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