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Linux 3.13-rc5

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Merge tag 'v3.13-rc5' into next/boards

Need a newer base version to get a regulator fix for Samsung platforms that
they enable building in a defconfig.

Linux 3.13-rc5
This commit is contained in:
Olof Johansson 2013-12-28 21:37:03 -08:00
commit fe5a365cdb
741 changed files with 7099 additions and 3805 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
CREDITS
View File

@ -655,6 +655,11 @@ S: Stanford University
S: Stanford, California 94305
S: USA
N: Carlos Chinea
E: carlos.chinea@nokia.com
E: cch.devel@gmail.com
D: Author of HSI Subsystem
N: Randolph Chung
E: tausq@debian.org
D: Linux/PA-RISC hacker

8
Documentation/DocBook/media/v4l/vidioc-expbuf.xml
View File

@ -73,7 +73,8 @@ range from zero to the maximal number of valid planes for the currently active
format. For the single-planar API, applications must set <structfield> plane
</structfield> to zero. Additional flags may be posted in the <structfield>
flags </structfield> field. Refer to a manual for open() for details.
Currently only O_CLOEXEC is supported. All other fields must be set to zero.
Currently only O_CLOEXEC, O_RDONLY, O_WRONLY, and O_RDWR are supported. All
other fields must be set to zero.
In the case of multi-planar API, every plane is exported separately using
multiple <constant> VIDIOC_EXPBUF </constant> calls. </para>
@ -170,8 +171,9 @@ multi-planar API. Otherwise this value must be set to zero. </entry>
<entry>__u32</entry>
<entry><structfield>flags</structfield></entry>
<entry>Flags for the newly created file, currently only <constant>
O_CLOEXEC </constant> is supported, refer to the manual of open() for more
details.</entry>
O_CLOEXEC </constant>, <constant>O_RDONLY</constant>, <constant>O_WRONLY
</constant>, and <constant>O_RDWR</constant> are supported, refer to the manual
of open() for more details.</entry>
</row>
<row>
<entry>__s32</entry>

6
Documentation/assoc_array.txt
View File

@ -164,10 +164,10 @@ This points to a number of methods, all of which need to be provided:
(4) Diff the index keys of two objects.
int (*diff_objects)(const void *a, const void *b);
int (*diff_objects)(const void *object, const void *index_key);
Return the bit position at which the index keys of two objects differ or
-1 if they are the same.
Return the bit position at which the index key of the specified object
differs from the given index key or -1 if they are the same.
(5) Free an object.

10
Documentation/device-mapper/cache.txt
View File

@ -266,10 +266,12 @@ E.g.
Invalidation is removing an entry from the cache without writing it
back. Cache blocks can be invalidated via the invalidate_cblocks
message, which takes an arbitrary number of cblock ranges. Each cblock
must be expressed as a decimal value, in the future a variant message
that takes cblock ranges expressed in hexidecimal may be needed to
better support efficient invalidation of larger caches. The cache must
be in passthrough mode when invalidate_cblocks is used.
range's end value is "one past the end", meaning 5-10 expresses a range
of values from 5 to 9. Each cblock must be expressed as a decimal
value, in the future a variant message that takes cblock ranges
expressed in hexidecimal may be needed to better support efficient
invalidation of larger caches. The cache must be in passthrough mode
when invalidate_cblocks is used.
invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*

2
Documentation/devicetree/bindings/net/davinci_emac.txt
View File

@ -4,7 +4,7 @@ This file provides information, what the device node
for the davinci_emac interface contains.
Required properties:
- compatible: "ti,davinci-dm6467-emac";
- compatible: "ti,davinci-dm6467-emac" or "ti,am3517-emac"
- reg: Offset and length of the register set for the device
- ti,davinci-ctrl-reg-offset: offset to control register
- ti,davinci-ctrl-mod-reg-offset: offset to control module register

4
Documentation/devicetree/bindings/net/smsc-lan91c111.txt
View File

@ -8,3 +8,7 @@ Required properties:
Optional properties:
- phy-device : phandle to Ethernet phy
- local-mac-address : Ethernet mac address to use
- reg-io-width : Mask of sizes (in bytes) of the IO accesses that
are supported on the device. Valid value for SMSC LAN91c111 are
1, 2 or 4. If it's omitted or invalid, the size would be 2 meaning
16-bit access only.

18
Documentation/mic/mpssd/mpssd.c
View File

@ -313,7 +313,7 @@ static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
int i;
void *dp = get_dp(mic, type);
for (i = mic_aligned_size(struct mic_bootparam); i < PAGE_SIZE;
for (i = sizeof(struct mic_bootparam); i < PAGE_SIZE;
i += mic_total_desc_size(d)) {
d = dp + i;
@ -445,8 +445,8 @@ init_vr(struct mic_info *mic, int fd, int type,
__func__, mic->name, vr0->va, vr0->info, vr_size,
vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
mpsslog("magic 0x%x expected 0x%x\n",
vr0->info->magic, MIC_MAGIC + type);
assert(vr0->info->magic == MIC_MAGIC + type);
le32toh(vr0->info->magic), MIC_MAGIC + type);
assert(le32toh(vr0->info->magic) == MIC_MAGIC + type);
if (vr1) {
vr1->va = (struct mic_vring *)
&va[MIC_DEVICE_PAGE_END + vr_size];
@ -458,8 +458,8 @@ init_vr(struct mic_info *mic, int fd, int type,
__func__, mic->name, vr1->va, vr1->info, vr_size,
vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
mpsslog("magic 0x%x expected 0x%x\n",
vr1->info->magic, MIC_MAGIC + type + 1);
assert(vr1->info->magic == MIC_MAGIC + type + 1);
le32toh(vr1->info->magic), MIC_MAGIC + type + 1);
assert(le32toh(vr1->info->magic) == MIC_MAGIC + type + 1);
}
done:
return va;
@ -520,7 +520,7 @@ static void *
virtio_net(void *arg)
{
static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __aligned(64);
static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __attribute__ ((aligned(64)));
struct iovec vnet_iov[2][2] = {
{ { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
{ .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
@ -1412,6 +1412,12 @@ mic_config(void *arg)
}
do {
ret = lseek(fd, 0, SEEK_SET);
if (ret < 0) {
mpsslog("%s: Failed to seek to file start '%s': %s\n",
mic->name, pathname, strerror(errno));
goto close_error1;
}
ret = read(fd, value, sizeof(value));
if (ret < 0) {
mpsslog("%s: Failed to read sysfs entry '%s': %s\n",

240
Documentation/module-signing.txt Normal file
View File

@ -0,0 +1,240 @@
==============================
KERNEL MODULE SIGNING FACILITY
==============================
CONTENTS
- Overview.
- Configuring module signing.
- Generating signing keys.
- Public keys in the kernel.
- Manually signing modules.
- Signed modules and stripping.
- Loading signed modules.
- Non-valid signatures and unsigned modules.
- Administering/protecting the private key.
========
OVERVIEW
========
The kernel module signing facility cryptographically signs modules during
installation and then checks the signature upon loading the module. This
allows increased kernel security by disallowing the loading of unsigned modules
or modules signed with an invalid key. Module signing increases security by
making it harder to load a malicious module into the kernel. The module
signature checking is done by the kernel so that it is not necessary to have
trusted userspace bits.
This facility uses X.509 ITU-T standard certificates to encode the public keys
involved. The signatures are not themselves encoded in any industrial standard
type. The facility currently only supports the RSA public key encryption
standard (though it is pluggable and permits others to be used). The possible
hash algorithms that can be used are SHA-1, SHA-224, SHA-256, SHA-384, and
SHA-512 (the algorithm is selected by data in the signature).
==========================
CONFIGURING MODULE SIGNING
==========================
The module signing facility is enabled by going to the "Enable Loadable Module
Support" section of the kernel configuration and turning on
CONFIG_MODULE_SIG "Module signature verification"
This has a number of options available:
(1) "Require modules to be validly signed" (CONFIG_MODULE_SIG_FORCE)
This specifies how the kernel should deal with a module that has a
signature for which the key is not known or a module that is unsigned.
If this is off (ie. "permissive"), then modules for which the key is not
available and modules that are unsigned are permitted, but the kernel will
be marked as being tainted.
If this is on (ie. "restrictive"), only modules that have a valid
signature that can be verified by a public key in the kernel's possession
will be loaded. All other modules will generate an error.
Irrespective of the setting here, if the module has a signature block that
cannot be parsed, it will be rejected out of hand.
(2) "Automatically sign all modules" (CONFIG_MODULE_SIG_ALL)
If this is on then modules will be automatically signed during the
modules_install phase of a build. If this is off, then the modules must
be signed manually using:
scripts/sign-file
(3) "Which hash algorithm should modules be signed with?"
This presents a choice of which hash algorithm the installation phase will
sign the modules with:
CONFIG_SIG_SHA1 "Sign modules with SHA-1"
CONFIG_SIG_SHA224 "Sign modules with SHA-224"
CONFIG_SIG_SHA256 "Sign modules with SHA-256"
CONFIG_SIG_SHA384 "Sign modules with SHA-384"
CONFIG_SIG_SHA512 "Sign modules with SHA-512"
The algorithm selected here will also be built into the kernel (rather
than being a module) so that modules signed with that algorithm can have
their signatures checked without causing a dependency loop.
=======================
GENERATING SIGNING KEYS
=======================
Cryptographic keypairs are required to generate and check signatures. A
private key is used to generate a signature and the corresponding public key is
used to check it. The private key is only needed during the build, after which
it can be deleted or stored securely. The public key gets built into the
kernel so that it can be used to check the signatures as the modules are
loaded.
Under normal conditions, the kernel build will automatically generate a new
keypair using openssl if one does not exist in the files:
signing_key.priv
signing_key.x509
during the building of vmlinux (the public part of the key needs to be built
into vmlinux) using parameters in the:
x509.genkey
file (which is also generated if it does not already exist).
It is strongly recommended that you provide your own x509.genkey file.
Most notably, in the x509.genkey file, the req_distinguished_name section
should be altered from the default:
[ req_distinguished_name ]
O = Magrathea
CN = Glacier signing key
emailAddress = slartibartfast@magrathea.h2g2
The generated RSA key size can also be set with:
[ req ]
default_bits = 4096
It is also possible to manually generate the key private/public files using the
x509.genkey key generation configuration file in the root node of the Linux
kernel sources tree and the openssl command. The following is an example to
generate the public/private key files:
openssl req -new -nodes -utf8 -sha256 -days 36500 -batch -x509 \
-config x509.genkey -outform DER -out signing_key.x509 \
-keyout signing_key.priv
=========================
PUBLIC KEYS IN THE KERNEL
=========================
The kernel contains a ring of public keys that can be viewed by root. They're
in a keyring called ".system_keyring" that can be seen by:
[root@deneb ~]# cat /proc/keys
...
223c7853 I------ 1 perm 1f030000 0 0 keyring .system_keyring: 1
302d2d52 I------ 1 perm 1f010000 0 0 asymmetri Fedora kernel signing key: d69a84e6bce3d216b979e9505b3e3ef9a7118079: X509.RSA a7118079 []
...
Beyond the public key generated specifically for module signing, any file
placed in the kernel source root directory or the kernel build root directory
whose name is suffixed with ".x509" will be assumed to be an X.509 public key
and will be added to the keyring.
Further, the architecture code may take public keys from a hardware store and
add those in also (e.g. from the UEFI key database).
Finally, it is possible to add additional public keys by doing:
keyctl padd asymmetric "" [.system_keyring-ID] <[key-file]
e.g.:
keyctl padd asymmetric "" 0x223c7853 <my_public_key.x509
Note, however, that the kernel will only permit keys to be added to
.system_keyring _if_ the new key's X.509 wrapper is validly signed by a key
that is already resident in the .system_keyring at the time the key was added.
=========================
MANUALLY SIGNING MODULES
=========================
To manually sign a module, use the scripts/sign-file tool available in
the Linux kernel source tree. The script requires 4 arguments:
1. The hash algorithm (e.g., sha256)
2. The private key filename
3. The public key filename
4. The kernel module to be signed
The following is an example to sign a kernel module:
scripts/sign-file sha512 kernel-signkey.priv \
kernel-signkey.x509 module.ko
The hash algorithm used does not have to match the one configured, but if it
doesn't, you should make sure that hash algorithm is either built into the
kernel or can be loaded without requiring itself.
============================
SIGNED MODULES AND STRIPPING
============================
A signed module has a digital signature simply appended at the end. The string
"~Module signature appended~." at the end of the module's file confirms that a
signature is present but it does not confirm that the signature is valid!
Signed modules are BRITTLE as the signature is outside of the defined ELF
container. Thus they MAY NOT be stripped once the signature is computed and
attached. Note the entire module is the signed payload, including any and all
debug information present at the time of signing.
======================
LOADING SIGNED MODULES
======================
Modules are loaded with insmod, modprobe, init_module() or finit_module(),
exactly as for unsigned modules as no processing is done in userspace. The
signature checking is all done within the kernel.
=========================================
NON-VALID SIGNATURES AND UNSIGNED MODULES
=========================================
If CONFIG_MODULE_SIG_FORCE is enabled or enforcemodulesig=1 is supplied on
the kernel command line, the kernel will only load validly signed modules
for which it has a public key. Otherwise, it will also load modules that are
unsigned. Any module for which the kernel has a key, but which proves to have
a signature mismatch will not be permitted to load.
Any module that has an unparseable signature will be rejected.
=========================================
ADMINISTERING/PROTECTING THE PRIVATE KEY
=========================================
Since the private key is used to sign modules, viruses and malware could use
the private key to sign modules and compromise the operating system. The
private key must be either destroyed or moved to a secure location and not kept
in the root node of the kernel source tree.

8
Documentation/networking/ip-sysctl.txt
View File

@ -16,8 +16,12 @@ ip_default_ttl - INTEGER
Default: 64 (as recommended by RFC1700)
ip_no_pmtu_disc - BOOLEAN
Disable Path MTU Discovery.
default FALSE
Disable Path MTU Discovery. If enabled and a
fragmentation-required ICMP is received, the PMTU to this
destination will be set to min_pmtu (see below). You will need
to raise min_pmtu to the smallest interface MTU on your system
manually if you want to avoid locally generated fragments.
Default: FALSE
min_pmtu - INTEGER
default 552 - minimum discovered Path MTU

10
Documentation/networking/packet_mmap.txt
View File

@ -123,6 +123,16 @@ Transmission process is similar to capture as shown below.
[shutdown] close() --------> destruction of the transmission socket and
deallocation of all associated resources.
Socket creation and destruction is also straight forward, and is done
the same way as in capturing described in the previous paragraph:
int fd = socket(PF_PACKET, mode, 0);
The protocol can optionally be 0 in case we only want to transmit
via this socket, which avoids an expensive call to packet_rcv().
In this case, you also need to bind(2) the TX_RING with sll_protocol = 0
set. Otherwise, htons(ETH_P_ALL) or any other protocol, for example.
Binding the socket to your network interface is mandatory (with zero copy) to
know the header size of frames used in the circular buffer.

86
MAINTAINERS
View File

@ -893,19 +893,14 @@ F: arch/arm/include/asm/hardware/dec21285.h
F: arch/arm/mach-footbridge/
ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
M: Shawn Guo <shawn.guo@linaro.org>
M: Sascha Hauer <kernel@pengutronix.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.pengutronix.de/git/imx/linux-2.6.git
F: arch/arm/mach-imx/
F: arch/arm/configs/imx*_defconfig
ARM/FREESCALE IMX6
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
F: arch/arm/mach-imx/*imx6*
F: arch/arm/mach-imx/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
ARM/FREESCALE MXS ARM ARCHITECTURE
M: Shawn Guo <shawn.guo@linaro.org>
@ -1013,6 +1008,8 @@ M: Santosh Shilimkar <santosh.shilimkar@ti.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-keystone/
F: drivers/clk/keystone/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
ARM/LOGICPD PXA270 MACHINE SUPPORT
M: Lennert Buytenhek <kernel@wantstofly.org>
@ -2138,7 +2135,8 @@ S: Maintained
F: Documentation/zh_CN/
CHIPIDEA USB HIGH SPEED DUAL ROLE CONTROLLER
M: Alexander Shishkin <alexander.shishkin@linux.intel.com>
M: Peter Chen <Peter.Chen@freescale.com>
T: git://github.com/hzpeterchen/linux-usb.git
L: linux-usb@vger.kernel.org
S: Maintained
F: drivers/usb/chipidea/
@ -3765,9 +3763,11 @@ F: include/uapi/linux/gigaset_dev.h
GPIO SUBSYSTEM
M: Linus Walleij <linus.walleij@linaro.org>
S: Maintained
M: Alexandre Courbot <gnurou@gmail.com>
L: linux-gpio@vger.kernel.org
F: Documentation/gpio.txt
T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git
S: Maintained
F: Documentation/gpio/
F: drivers/gpio/
F: include/linux/gpio*
F: include/asm-generic/gpio.h
@ -3835,6 +3835,12 @@ T: git git://linuxtv.org/media_tree.git
S: Maintained
F: drivers/media/usb/gspca/
GUID PARTITION TABLE (GPT)
M: Davidlohr Bueso <davidlohr@hp.com>
L: linux-efi@vger.kernel.org
S: Maintained
F: block/partitions/efi.*
STK1160 USB VIDEO CAPTURE DRIVER
M: Ezequiel Garcia <elezegarcia@gmail.com>
L: linux-media@vger.kernel.org
@ -4044,6 +4050,14 @@ W: http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi
S: Maintained
F: fs/hpfs/
HSI SUBSYSTEM
M: Sebastian Reichel <sre@debian.org>
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-hsi
F: drivers/hsi/
F: include/linux/hsi/
F: include/uapi/linux/hsi/
HSO 3G MODEM DRIVER
M: Jan Dumon <j.dumon@option.com>
W: http://www.pharscape.org
@ -4462,10 +4476,8 @@ M: Bruce Allan <bruce.w.allan@intel.com>
M: Carolyn Wyborny <carolyn.wyborny@intel.com>
M: Don Skidmore <donald.c.skidmore@intel.com>
M: Greg Rose <gregory.v.rose@intel.com>
M: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
M: Alex Duyck <alexander.h.duyck@intel.com>
M: John Ronciak <john.ronciak@intel.com>
M: Tushar Dave <tushar.n.dave@intel.com>
L: e1000-devel@lists.sourceforge.net
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
@ -5909,12 +5921,21 @@ M: Steffen Klassert <steffen.klassert@secunet.com>
M: Herbert Xu <herbert@gondor.apana.org.au>
M: "David S. Miller" <davem@davemloft.net>
L: netdev@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git
S: Maintained
F: net/xfrm/
F: net/key/
F: net/ipv4/xfrm*
F: net/ipv4/esp4.c
F: net/ipv4/ah4.c
F: net/ipv4/ipcomp.c
F: net/ipv4/ip_vti.c
F: net/ipv6/xfrm*
F: net/ipv6/esp6.c
F: net/ipv6/ah6.c
F: net/ipv6/ipcomp6.c
F: net/ipv6/ip6_vti.c
F: include/uapi/linux/xfrm.h
F: include/net/xfrm.h
@ -6461,19 +6482,52 @@ F: drivers/pci/
F: include/linux/pci*
F: arch/x86/pci/
PCI DRIVER FOR IMX6
M: Richard Zhu <r65037@freescale.com>
M: Shawn Guo <shawn.guo@linaro.org>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/*imx6*
PCI DRIVER FOR MVEBU (Marvell Armada 370 and Armada XP SOC support)
M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
M: Jason Cooper <jason@lakedaemon.net>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/*mvebu*
PCI DRIVER FOR NVIDIA TEGRA
M: Thierry Reding <thierry.reding@gmail.com>
L: linux-tegra@vger.kernel.org
L: linux-pci@vger.kernel.org
S: Supported
F: Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
F: drivers/pci/host/pci-tegra.c
PCI DRIVER FOR RENESAS R-CAR
M: Simon Horman <horms@verge.net.au>
L: linux-pci@vger.kernel.org
L: linux-sh@vger.kernel.org
S: Maintained
F: drivers/pci/host/*rcar*
PCI DRIVER FOR SAMSUNG EXYNOS
M: Jingoo Han <jg1.han@samsung.com>
L: linux-pci@vger.kernel.org
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
F: drivers/pci/host/pci-exynos.c
PCI DRIVER FOR SYNOPSIS DESIGNWARE
M: Mohit Kumar <mohit.kumar@st.com>
M: Jingoo Han <jg1.han@samsung.com>
L: linux-pci@vger.kernel.org
S: Maintained
F: drivers/pci/host/*designware*
PCMCIA SUBSYSTEM
P: Linux PCMCIA Team
L: linux-pcmcia@lists.infradead.org
@ -9536,7 +9590,7 @@ F: drivers/xen/*swiotlb*
XFS FILESYSTEM
P: Silicon Graphics Inc
M: Dave Chinner <dchinner@fromorbit.com>
M: Dave Chinner <david@fromorbit.com>
M: Ben Myers <bpm@sgi.com>
M: xfs@oss.sgi.com
L: xfs@oss.sgi.com

24
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 13
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc5
NAME = One Giant Leap for Frogkind
# *DOCUMENTATION*
@ -732,19 +732,15 @@ export mod_strip_cmd
# Select initial ramdisk compression format, default is gzip(1).
# This shall be used by the dracut(8) tool while creating an initramfs image.
#
INITRD_COMPRESS=gzip
ifeq ($(CONFIG_RD_BZIP2), y)
INITRD_COMPRESS=bzip2
else ifeq ($(CONFIG_RD_LZMA), y)
INITRD_COMPRESS=lzma
else ifeq ($(CONFIG_RD_XZ), y)
INITRD_COMPRESS=xz
else ifeq ($(CONFIG_RD_LZO), y)
INITRD_COMPRESS=lzo
else ifeq ($(CONFIG_RD_LZ4), y)
INITRD_COMPRESS=lz4
endif
export INITRD_COMPRESS
INITRD_COMPRESS-y := gzip
INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
# do not export INITRD_COMPRESS, since we didn't actually
# choose a sane default compression above.
# export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
ifdef CONFIG_MODULE_SIG_ALL
MODSECKEY = ./signing_key.priv

1
arch/arc/Kconfig
View File

@ -8,6 +8,7 @@
config ARC
def_bool y
select BUILDTIME_EXTABLE_SORT
select CLONE_BACKWARDS
# ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev
select DEVTMPFS if !INITRAMFS_SOURCE=""

11
arch/arc/include/uapi/asm/unistd.h
View File

@ -8,6 +8,13 @@
/******** no-legacy-syscalls-ABI *******/
/*
* Non-typical guard macro to enable inclusion twice in ARCH sys.c
* That is how the Generic syscall wrapper generator works
*/
#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL)
#define _UAPI_ASM_ARC_UNISTD_H
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_CLONE
#define __ARCH_WANT_SYS_VFORK
@ -32,3 +39,7 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls)
/* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */
#define __NR_sysfs (__NR_arch_specific_syscall + 3)
__SYSCALL(__NR_sysfs, sys_sysfs)
#undef __SYSCALL
#endif

4
arch/arc/kernel/perf_event.c
View File

@ -79,9 +79,9 @@ static int arc_pmu_cache_event(u64 config)
cache_result = (config >> 16) & 0xff;
if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
return -EINVAL;
if (cache_type >= PERF_COUNT_HW_CACHE_OP_MAX)
if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX)
return -EINVAL;
if (cache_type >= PERF_COUNT_HW_CACHE_RESULT_MAX)
if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
return -EINVAL;
ret = arc_pmu_cache_map[cache_type][cache_op][cache_result];

24
arch/arm/boot/dts/r8a7790.dtsi
View File

@ -87,9 +87,9 @@
interrupts = <1 9 0xf04>;
};
gpio0: gpio@ffc40000 {
gpio0: gpio@e6050000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc40000 0 0x2c>;
reg = <0 0xe6050000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 4 0x4>;
#gpio-cells = <2>;
@ -99,9 +99,9 @@
interrupt-controller;
};
gpio1: gpio@ffc41000 {
gpio1: gpio@e6051000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc41000 0 0x2c>;
reg = <0 0xe6051000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 5 0x4>;
#gpio-cells = <2>;
@ -111,9 +111,9 @@
interrupt-controller;
};
gpio2: gpio@ffc42000 {
gpio2: gpio@e6052000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc42000 0 0x2c>;
reg = <0 0xe6052000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 6 0x4>;
#gpio-cells = <2>;
@ -123,9 +123,9 @@
interrupt-controller;
};
gpio3: gpio@ffc43000 {
gpio3: gpio@e6053000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc43000 0 0x2c>;
reg = <0 0xe6053000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 7 0x4>;
#gpio-cells = <2>;
@ -135,9 +135,9 @@
interrupt-controller;
};
gpio4: gpio@ffc44000 {
gpio4: gpio@e6054000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc44000 0 0x2c>;
reg = <0 0xe6054000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 8 0x4>;
#gpio-cells = <2>;
@ -147,9 +147,9 @@
interrupt-controller;
};
gpio5: gpio@ffc45000 {
gpio5: gpio@e6055000 {
compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar";
reg = <0 0xffc45000 0 0x2c>;
reg = <0 0xe6055000 0 0x50>;
interrupt-parent = <&gic>;
interrupts = <0 9 0x4>;
#gpio-cells = <2>;

27
arch/arm/boot/dts/sun6i-a31.dtsi
View File

@ -193,7 +193,10 @@
pio: pinctrl@01c20800 {
compatible = "allwinner,sun6i-a31-pinctrl";
reg = <0x01c20800 0x400>;
interrupts = <0 11 1>, <0 15 1>, <0 16 1>, <0 17 1>;
interrupts = <0 11 4>,
<0 15 4>,
<0 16 4>,
<0 17 4>;
clocks = <&apb1_gates 5>;
gpio-controller;
interrupt-controller;
@ -212,11 +215,11 @@
timer@01c20c00 {
compatible = "allwinner,sun4i-timer";
reg = <0x01c20c00 0xa0>;
interrupts = <0 18 1>,
<0 19 1>,
<0 20 1>,
<0 21 1>,
<0 22 1>;
interrupts = <0 18 4>,
<0 19 4>,
<0 20 4>,
<0 21 4>,
<0 22 4>;
clocks = <&osc24M>;
};
@ -228,7 +231,7 @@
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <0 0 1>;
interrupts = <0 0 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 16>;
@ -238,7 +241,7 @@
uart1: serial@01c28400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28400 0x400>;
interrupts = <0 1 1>;
interrupts = <0 1 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 17>;
@ -248,7 +251,7 @@
uart2: serial@01c28800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28800 0x400>;
interrupts = <0 2 1>;
interrupts = <0 2 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 18>;
@ -258,7 +261,7 @@
uart3: serial@01c28c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28c00 0x400>;
interrupts = <0 3 1>;
interrupts = <0 3 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 19>;
@ -268,7 +271,7 @@
uart4: serial@01c29000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29000 0x400>;
interrupts = <0 4 1>;
interrupts = <0 4 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 20>;
@ -278,7 +281,7 @@
uart5: serial@01c29400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29400 0x400>;
interrupts = <0 5 1>;
interrupts = <0 5 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb2_gates 21>;

42
arch/arm/boot/dts/sun7i-a20.dtsi
View File

@ -170,7 +170,7 @@
emac: ethernet@01c0b000 {
compatible = "allwinner,sun4i-emac";
reg = <0x01c0b000 0x1000>;
interrupts = <0 55 1>;
interrupts = <0 55 4>;
clocks = <&ahb_gates 17>;
status = "disabled";
};
@ -186,7 +186,7 @@
pio: pinctrl@01c20800 {
compatible = "allwinner,sun7i-a20-pinctrl";
reg = <0x01c20800 0x400>;
interrupts = <0 28 1>;
interrupts = <0 28 4>;
clocks = <&apb0_gates 5>;
gpio-controller;
interrupt-controller;
@ -251,12 +251,12 @@
timer@01c20c00 {
compatible = "allwinner,sun4i-timer";
reg = <0x01c20c00 0x90>;
interrupts = <0 22 1>,
<0 23 1>,
<0 24 1>,
<0 25 1>,
<0 67 1>,
<0 68 1>;
interrupts = <0 22 4>,
<0 23 4>,
<0 24 4>,
<0 25 4>,
<0 67 4>,
<0 68 4>;
clocks = <&osc24M>;
};
@ -273,7 +273,7 @@
uart0: serial@01c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
interrupts = <0 1 1>;
interrupts = <0 1 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 16>;
@ -283,7 +283,7 @@
uart1: serial@01c28400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28400 0x400>;
interrupts = <0 2 1>;
interrupts = <0 2 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 17>;
@ -293,7 +293,7 @@
uart2: serial@01c28800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28800 0x400>;
interrupts = <0 3 1>;
interrupts = <0 3 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 18>;
@ -303,7 +303,7 @@
uart3: serial@01c28c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28c00 0x400>;
interrupts = <0 4 1>;
interrupts = <0 4 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 19>;
@ -313,7 +313,7 @@
uart4: serial@01c29000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29000 0x400>;
interrupts = <0 17 1>;
interrupts = <0 17 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 20>;
@ -323,7 +323,7 @@
uart5: serial@01c29400 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29400 0x400>;
interrupts = <0 18 1>;
interrupts = <0 18 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 21>;
@ -333,7 +333,7 @@
uart6: serial@01c29800 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29800 0x400>;
interrupts = <0 19 1>;
interrupts = <0 19 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 22>;
@ -343,7 +343,7 @@
uart7: serial@01c29c00 {
compatible = "snps,dw-apb-uart";
reg = <0x01c29c00 0x400>;
interrupts = <0 20 1>;
interrupts = <0 20 4>;
reg-shift = <2>;
reg-io-width = <4>;
clocks = <&apb1_gates 23>;
@ -353,7 +353,7 @@
i2c0: i2c@01c2ac00 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2ac00 0x400>;
interrupts = <0 7 1>;
interrupts = <0 7 4>;
clocks = <&apb1_gates 0>;
clock-frequency = <100000>;
status = "disabled";
@ -362,7 +362,7 @@
i2c1: i2c@01c2b000 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b000 0x400>;
interrupts = <0 8 1>;
interrupts = <0 8 4>;
clocks = <&apb1_gates 1>;
clock-frequency = <100000>;
status = "disabled";
@ -371,7 +371,7 @@
i2c2: i2c@01c2b400 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b400 0x400>;
interrupts = <0 9 1>;
interrupts = <0 9 4>;
clocks = <&apb1_gates 2>;
clock-frequency = <100000>;
status = "disabled";
@ -380,7 +380,7 @@
i2c3: i2c@01c2b800 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2b800 0x400>;
interrupts = <0 88 1>;
interrupts = <0 88 4>;
clocks = <&apb1_gates 3>;
clock-frequency = <100000>;
status = "disabled";
@ -389,7 +389,7 @@
i2c4: i2c@01c2bc00 {
compatible = "allwinner,sun4i-i2c";
reg = <0x01c2bc00 0x400>;
interrupts = <0 89 1>;
interrupts = <0 89 4>;
clocks = <&apb1_gates 15>;
clock-frequency = <100000>;
status = "disabled";

1
arch/arm/configs/exynos_defconfig
View File

@ -79,6 +79,7 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_MAX8997=y
CONFIG_REGULATOR_MAX77686=y
CONFIG_REGULATOR_S2MPS11=y
CONFIG_REGULATOR_S5M8767=y
CONFIG_REGULATOR_TPS65090=y
CONFIG_FB=y

31
arch/arm/include/asm/memory.h
View File

@ -100,23 +100,19 @@
#define TASK_UNMAPPED_BASE UL(0x00000000)
#endif
#ifndef PHYS_OFFSET
#define PHYS_OFFSET UL(CONFIG_DRAM_BASE)
#endif
#ifndef END_MEM
#define END_MEM (UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
#endif
#ifndef PAGE_OFFSET
#define PAGE_OFFSET (PHYS_OFFSET)
#define PAGE_OFFSET PLAT_PHYS_OFFSET
#endif
/*
* The module can be at any place in ram in nommu mode.
*/
#define MODULES_END (END_MEM)
#define MODULES_VADDR (PHYS_OFFSET)
#define MODULES_VADDR PAGE_OFFSET
#define XIP_VIRT_ADDR(physaddr) (physaddr)
@ -157,6 +153,16 @@
#endif
#define ARCH_PGD_MASK ((1 << ARCH_PGD_SHIFT) - 1)
/*
* PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical
* memory. This is used for XIP and NoMMU kernels, or by kernels which
* have their own mach/memory.h. Assembly code must always use
* PLAT_PHYS_OFFSET and not PHYS_OFFSET.
*/
#ifndef PLAT_PHYS_OFFSET
#define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET)
#endif
#ifndef __ASSEMBLY__
/*
@ -239,6 +245,8 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#else
#define PHYS_OFFSET PLAT_PHYS_OFFSET
static inline phys_addr_t __virt_to_phys(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
@ -251,17 +259,6 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#endif
#endif
#endif /* __ASSEMBLY__ */
#ifndef PHYS_OFFSET
#ifdef PLAT_PHYS_OFFSET
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#else
#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET)
#endif
#endif
#ifndef __ASSEMBLY__
/*
* PFNs are used to describe any physical page; this means

4
arch/arm/kernel/head-nommu.S
View File

@ -68,7 +68,7 @@ ENTRY(stext)
#ifdef CONFIG_ARM_MPU
/* Calculate the size of a region covering just the kernel */
ldr r5, =PHYS_OFFSET @ Region start: PHYS_OFFSET
ldr r5, =PLAT_PHYS_OFFSET @ Region start: PHYS_OFFSET
ldr r6, =(_end) @ Cover whole kernel
sub r6, r6, r5 @ Minimum size of region to map
clz r6, r6 @ Region size must be 2^N...
@ -213,7 +213,7 @@ ENTRY(__setup_mpu)
set_region_nr r0, #MPU_RAM_REGION
isb
/* Full access from PL0, PL1, shared for CONFIG_SMP, cacheable */
ldr r0, =PHYS_OFFSET @ RAM starts at PHYS_OFFSET
ldr r0, =PLAT_PHYS_OFFSET @ RAM starts at PHYS_OFFSET
ldr r5,=(MPU_AP_PL1RW_PL0RW | MPU_RGN_NORMAL)
setup_region r0, r5, r6, MPU_DATA_SIDE @ PHYS_OFFSET, shared, enabled

2
arch/arm/kernel/head.S
View File

@ -110,7 +110,7 @@ ENTRY(stext)
sub r4, r3, r4 @ (PHYS_OFFSET - PAGE_OFFSET)
add r8, r8, r4 @ PHYS_OFFSET
#else
ldr r8, =PHYS_OFFSET @ always constant in this case
ldr r8, =PLAT_PHYS_OFFSET @ always constant in this case
#endif
/*

7
arch/arm/kernel/process.c
View File

@ -404,6 +404,7 @@ EXPORT_SYMBOL(dump_fpu);
unsigned long get_wchan(struct task_struct *p)
{
struct stackframe frame;
unsigned long stack_page;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
@ -412,9 +413,11 @@ unsigned long get_wchan(struct task_struct *p)
frame.sp = thread_saved_sp(p);
frame.lr = 0; /* recovered from the stack */
frame.pc = thread_saved_pc(p);
stack_page = (unsigned long)task_stack_page(p);
do {
int ret = unwind_frame(&frame);
if (ret < 0)
if (frame.sp < stack_page ||
frame.sp >= stack_page + THREAD_SIZE ||
unwind_frame(&frame) < 0)
return 0;
if (!in_sched_functions(frame.pc))
return frame.pc;

3
arch/arm/kernel/setup.c
View File

@ -873,8 +873,6 @@ void __init setup_arch(char **cmdline_p)
machine_desc = mdesc;
machine_name = mdesc->name;
setup_dma_zone(mdesc);
if (mdesc->reboot_mode != REBOOT_HARD)
reboot_mode = mdesc->reboot_mode;
@ -892,6 +890,7 @@ void __init setup_arch(char **cmdline_p)
sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
setup_dma_zone(mdesc);
sanity_check_meminfo();
arm_memblock_init(&meminfo, mdesc);

2
arch/arm/kernel/stacktrace.c
View File

@ -31,7 +31,7 @@ int notrace unwind_frame(struct stackframe *frame)
high = ALIGN(low, THREAD_SIZE);
/* check current frame pointer is within bounds */
if (fp < (low + 12) || fp + 4 >= high)
if (fp < low + 12 || fp > high - 4)
return -EINVAL;
/* restore the registers from the stack frame */

3
arch/arm/kernel/traps.c
View File

@ -509,9 +509,10 @@ static inline int
__do_cache_op(unsigned long start, unsigned long end)
{
int ret;
unsigned long chunk = PAGE_SIZE;
do {
unsigned long chunk = min(PAGE_SIZE, end - start);
if (signal_pending(current)) {
struct thread_info *ti = current_thread_info();

4
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -487,7 +487,7 @@ int __init da8xx_register_emac(void)
static struct resource da830_mcasp1_resources[] = {
{
.name = "mcasp1",
.name = "mpu",
.start = DAVINCI_DA830_MCASP1_REG_BASE,
.end = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,
@ -515,7 +515,7 @@ static struct platform_device da830_mcasp1_device = {
static struct resource da850_mcasp_resources[] = {
{
.name = "mcasp",
.name = "mpu",
.start = DAVINCI_DA8XX_MCASP0_REG_BASE,
.end = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
.flags = IORESOURCE_MEM,

3
arch/arm/mach-davinci/dm355.c
View File

@ -641,6 +641,7 @@ static struct platform_device dm355_edma_device = {
static struct resource dm355_asp1_resources[] = {
{
.name = "mpu",
.start = DAVINCI_ASP1_BASE,
.end = DAVINCI_ASP1_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,
@ -906,7 +907,7 @@ static struct davinci_gpio_platform_data dm355_gpio_platform_data = {
int __init dm355_gpio_register(void)
{
return davinci_gpio_register(dm355_gpio_resources,
sizeof(dm355_gpio_resources),
ARRAY_SIZE(dm355_gpio_resources),
&dm355_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

3
arch/arm/mach-davinci/dm365.c
View File

@ -720,7 +720,7 @@ static struct davinci_gpio_platform_data dm365_gpio_platform_data = {
int __init dm365_gpio_register(void)
{
return davinci_gpio_register(dm365_gpio_resources,
sizeof(dm365_gpio_resources),
ARRAY_SIZE(dm365_gpio_resources),
&dm365_gpio_platform_data);
}
@ -942,6 +942,7 @@ static struct platform_device dm365_edma_device = {
static struct resource dm365_asp_resources[] = {
{
.name = "mpu",
.start = DAVINCI_DM365_ASP0_BASE,
.end = DAVINCI_DM365_ASP0_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,

3
arch/arm/mach-davinci/dm644x.c
View File

@ -572,6 +572,7 @@ static struct platform_device dm644x_edma_device = {
/* DM6446 EVM uses ASP0; line-out is a pair of RCA jacks */
static struct resource dm644x_asp_resources[] = {
{
.name = "mpu",
.start = DAVINCI_ASP0_BASE,
.end = DAVINCI_ASP0_BASE + SZ_8K - 1,
.flags = IORESOURCE_MEM,
@ -792,7 +793,7 @@ static struct davinci_gpio_platform_data dm644_gpio_platform_data = {
int __init dm644x_gpio_register(void)
{
return davinci_gpio_register(dm644_gpio_resources,
sizeof(dm644_gpio_resources),
ARRAY_SIZE(dm644_gpio_resources),
&dm644_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

6
arch/arm/mach-davinci/dm646x.c
View File

@ -621,7 +621,7 @@ static struct platform_device dm646x_edma_device = {
static struct resource dm646x_mcasp0_resources[] = {
{
.name = "mcasp0",
.name = "mpu",
.start = DAVINCI_DM646X_MCASP0_REG_BASE,
.end = DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
@ -641,7 +641,7 @@ static struct resource dm646x_mcasp0_resources[] = {
static struct resource dm646x_mcasp1_resources[] = {
{
.name = "mcasp1",
.name = "mpu",
.start = DAVINCI_DM646X_MCASP1_REG_BASE,
.end = DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1,
.flags = IORESOURCE_MEM,
@ -769,7 +769,7 @@ static struct davinci_gpio_platform_data dm646x_gpio_platform_data = {
int __init dm646x_gpio_register(void)
{
return davinci_gpio_register(dm646x_gpio_resources,
sizeof(dm646x_gpio_resources),
ARRAY_SIZE(dm646x_gpio_resources),
&dm646x_gpio_platform_data);
}
/*----------------------------------------------------------------------*/

23
arch/arm/mach-highbank/highbank.c
View File

@ -17,12 +17,15 @@
#include <linux/clkdev.h>
#include <linux/clocksource.h>
#include <linux/dma-mapping.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/irqchip.h>
#include <linux/mailbox.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/reboot.h>
#include <linux/amba/bus.h>
#include <linux/platform_device.h>
@ -130,6 +133,24 @@ static struct platform_device highbank_cpuidle_device = {
.name = "cpuidle-calxeda",
};
static int hb_keys_notifier(struct notifier_block *nb, unsigned long event, void *data)
{
u32 key = *(u32 *)data;
if (event != 0x1000)
return 0;
if (key == KEY_POWER)
orderly_poweroff(false);
else if (key == 0xffff)
ctrl_alt_del();
return 0;
}
static struct notifier_block hb_keys_nb = {
.notifier_call = hb_keys_notifier,
};
static void __init highbank_init(void)
{
struct device_node *np;
@ -145,6 +166,8 @@ static void __init highbank_init(void)
bus_register_notifier(&platform_bus_type, &highbank_platform_nb);
bus_register_notifier(&amba_bustype, &highbank_amba_nb);
pl320_ipc_register_notifier(&hb_keys_nb);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
if (psci_ops.cpu_suspend)

38
arch/arm/mach-omap2/display.c
View File

@ -101,13 +101,51 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
{ "dss_hdmi", "omapdss_hdmi", -1 },
};
static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
{
u32 enable_mask, enable_shift;
u32 pipd_mask, pipd_shift;
u32 reg;
if (dsi_id == 0) {
enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
pipd_mask = OMAP4_DSI1_PIPD_MASK;
pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
} else if (dsi_id == 1) {
enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
pipd_mask = OMAP4_DSI2_PIPD_MASK;
pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
} else {
return -ENODEV;
}
reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
reg &= ~enable_mask;
reg &= ~pipd_mask;
reg |= (lanes << enable_shift) & enable_mask;
reg |= (lanes << pipd_shift) & pipd_mask;
omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
return 0;
}
static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
{
if (cpu_is_omap44xx())
return omap4_dsi_mux_pads(dsi_id, lane_mask);
return 0;
}
static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
{
if (cpu_is_omap44xx())
omap4_dsi_mux_pads(dsi_id, 0);
}
static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)

24
arch/arm/mach-omap2/omap_device.c
View File

@ -184,6 +184,10 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
odbfd_exit1:
kfree(hwmods);
odbfd_exit:
/* if data/we are at fault.. load up a fail handler */
if (ret)
pdev->dev.pm_domain = &omap_device_fail_pm_domain;
return ret;
}
@ -606,6 +610,19 @@ static int _od_runtime_resume(struct device *dev)
return pm_generic_runtime_resume(dev);
}
static int _od_fail_runtime_suspend(struct device *dev)
{
dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__);
return -ENODEV;
}
static int _od_fail_runtime_resume(struct device *dev)
{
dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__);
return -ENODEV;
}
#endif
#ifdef CONFIG_SUSPEND
@ -659,6 +676,13 @@ static int _od_resume_noirq(struct device *dev)
#define _od_resume_noirq NULL
#endif
struct dev_pm_domain omap_device_fail_pm_domain = {
.ops = {
SET_RUNTIME_PM_OPS(_od_fail_runtime_suspend,
_od_fail_runtime_resume, NULL)
}
};
struct dev_pm_domain omap_device_pm_domain = {
.ops = {
SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume,

1
arch/arm/mach-omap2/omap_device.h
View File

@ -29,6 +29,7 @@
#include "omap_hwmod.h"
extern struct dev_pm_domain omap_device_pm_domain;
extern struct dev_pm_domain omap_device_fail_pm_domain;
/* omap_device._state values */
#define OMAP_DEVICE_STATE_UNKNOWN 0

45
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -399,7 +399,7 @@ static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v)
}
/**
* _set_softreset: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v
* _set_softreset: set OCP_SYSCONFIG.SOFTRESET bit in @v
* @oh: struct omap_hwmod *
* @v: pointer to register contents to modify
*
@ -426,6 +426,36 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v)
return 0;
}
/**
* _clear_softreset: clear OCP_SYSCONFIG.SOFTRESET bit in @v
* @oh: struct omap_hwmod *
* @v: pointer to register contents to modify
*
* Clear the SOFTRESET bit in @v for hwmod @oh. Returns -EINVAL upon
* error or 0 upon success.
*/
static int _clear_softreset(struct omap_hwmod *oh, u32 *v)
{
u32 softrst_mask;
if (!oh->class->sysc ||
!(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET))
return -EINVAL;
if (!oh->class->sysc->sysc_fields) {
WARN(1,
"omap_hwmod: %s: sysc_fields absent for sysconfig class\n",
oh->name);
return -EINVAL;
}
softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift);
*v &= ~softrst_mask;
return 0;
}
/**
* _wait_softreset_complete - wait for an OCP softreset to complete
* @oh: struct omap_hwmod * to wait on
@ -785,6 +815,7 @@ static int _init_interface_clks(struct omap_hwmod *oh)
pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
oh->name, os->clk);
ret = -EINVAL;
continue;
}
os->_clk = c;
/*
@ -821,6 +852,7 @@ static int _init_opt_clks(struct omap_hwmod *oh)
pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
oh->name, oc->clk);
ret = -EINVAL;
continue;
}
oc->_clk = c;
/*
@ -1911,6 +1943,12 @@ static int _ocp_softreset(struct omap_hwmod *oh)
ret = _set_softreset(oh, &v);
if (ret)
goto dis_opt_clks;
_write_sysconfig(v, oh);
ret = _clear_softreset(oh, &v);
if (ret)
goto dis_opt_clks;
_write_sysconfig(v, oh);
if (oh->class->sysc->srst_udelay)
@ -3227,6 +3265,11 @@ int omap_hwmod_softreset(struct omap_hwmod *oh)
goto error;
_write_sysconfig(v, oh);
ret = _clear_softreset(oh, &v);
if (ret)
goto error;
_write_sysconfig(v, oh);
error:
return ret;
}

13
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
View File

@ -1943,7 +1943,8 @@ static struct omap_hwmod_class_sysconfig omap3xxx_usb_host_hs_sysc = {
.syss_offs = 0x0014,
.sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY |
SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP |
SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
SYSS_HAS_RESET_STATUS),
.idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
.sysc_fields = &omap_hwmod_sysc_type1,
@ -2021,15 +2022,7 @@ static struct omap_hwmod omap3xxx_usb_host_hs_hwmod = {
* hence HWMOD_SWSUP_MSTANDBY
*/
/*
* During system boot; If the hwmod framework resets the module
* the module will have smart idle settings; which can lead to deadlock
* (above Errata Id:i660); so, dont reset the module during boot;
* Use HWMOD_INIT_NO_RESET.
*/
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
HWMOD_INIT_NO_RESET,
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
};
/*

12
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
View File

@ -2937,7 +2937,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_usb_host_hs_sysc = {
.sysc_offs = 0x0010,
.syss_offs = 0x0014,
.sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE |
SYSC_HAS_SOFTRESET),
SYSC_HAS_SOFTRESET | SYSC_HAS_RESET_STATUS),
.idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
@ -3001,15 +3001,7 @@ static struct omap_hwmod omap44xx_usb_host_hs_hwmod = {
* hence HWMOD_SWSUP_MSTANDBY
*/
/*
* During system boot; If the hwmod framework resets the module
* the module will have smart idle settings; which can lead to deadlock
* (above Errata Id:i660); so, dont reset the module during boot;
* Use HWMOD_INIT_NO_RESET.
*/
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
HWMOD_INIT_NO_RESET,
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
};
/*

13
arch/arm/mach-omap2/omap_hwmod_54xx_data.c
View File

@ -1544,7 +1544,8 @@ static struct omap_hwmod_class_sysconfig omap54xx_usb_host_hs_sysc = {
.rev_offs = 0x0000,
.sysc_offs = 0x0010,
.sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS |
SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
SYSC_HAS_RESET_STATUS),
.idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
@ -1598,15 +1599,7 @@ static struct omap_hwmod omap54xx_usb_host_hs_hwmod = {
* hence HWMOD_SWSUP_MSTANDBY
*/
/*
* During system boot; If the hwmod framework resets the module
* the module will have smart idle settings; which can lead to deadlock
* (above Errata Id:i660); so, dont reset the module during boot;
* Use HWMOD_INIT_NO_RESET.
*/
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
HWMOD_INIT_NO_RESET,
.flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
.main_clk = "l3init_60m_fclk",
.prcm = {
.omap4 = {

8
arch/arm/mach-pxa/reset.c
View File

@ -13,6 +13,7 @@
#include <mach/regs-ost.h>
#include <mach/reset.h>
#include <mach/smemc.h>
unsigned int reset_status;
EXPORT_SYMBOL(reset_status);
@ -81,6 +82,12 @@ static void do_hw_reset(void)
writel_relaxed(OSSR_M3, OSSR);
/* ... in 100 ms */
writel_relaxed(readl_relaxed(OSCR) + 368640, OSMR3);
/*
* SDRAM hangs on watchdog reset on Marvell PXA270 (erratum 71)
* we put SDRAM into self-refresh to prevent that
*/
while (1)
writel_relaxed(MDREFR_SLFRSH, MDREFR);
}
void pxa_restart(enum reboot_mode mode, const char *cmd)
@ -104,4 +111,3 @@ void pxa_restart(enum reboot_mode mode, const char *cmd)
break;
}
}

102
arch/arm/mach-pxa/tosa.c
View File

@ -425,57 +425,57 @@ static struct platform_device tosa_power_device = {
* Tosa Keyboard
*/
static const uint32_t tosakbd_keymap[] = {
KEY(0, 2, KEY_W),
KEY(0, 6, KEY_K),
KEY(0, 7, KEY_BACKSPACE),
KEY(0, 8, KEY_P),
KEY(1, 1, KEY_Q),
KEY(1, 2, KEY_E),
KEY(1, 3, KEY_T),
KEY(1, 4, KEY_Y),
KEY(1, 6, KEY_O),
KEY(1, 7, KEY_I),
KEY(1, 8, KEY_COMMA),
KEY(2, 1, KEY_A),
KEY(2, 2, KEY_D),
KEY(2, 3, KEY_G),
KEY(2, 4, KEY_U),
KEY(2, 6, KEY_L),
KEY(2, 7, KEY_ENTER),
KEY(2, 8, KEY_DOT),
KEY(3, 1, KEY_Z),
KEY(3, 2, KEY_C),
KEY(3, 3, KEY_V),
KEY(3, 4, KEY_J),
KEY(3, 5, TOSA_KEY_ADDRESSBOOK),
KEY(3, 6, TOSA_KEY_CANCEL),
KEY(3, 7, TOSA_KEY_CENTER),
KEY(3, 8, TOSA_KEY_OK),
KEY(3, 9, KEY_LEFTSHIFT),
KEY(4, 1, KEY_S),
KEY(4, 2, KEY_R),
KEY(4, 3, KEY_B),
KEY(4, 4, KEY_N),
KEY(4, 5, TOSA_KEY_CALENDAR),
KEY(4, 6, TOSA_KEY_HOMEPAGE),
KEY(4, 7, KEY_LEFTCTRL),
KEY(4, 8, TOSA_KEY_LIGHT),
KEY(4, 10, KEY_RIGHTSHIFT),
KEY(5, 1, KEY_TAB),
KEY(5, 2, KEY_SLASH),
KEY(5, 3, KEY_H),
KEY(5, 4, KEY_M),
KEY(5, 5, TOSA_KEY_MENU),
KEY(5, 7, KEY_UP),
KEY(5, 11, TOSA_KEY_FN),
KEY(6, 1, KEY_X),
KEY(6, 2, KEY_F),
KEY(6, 3, KEY_SPACE),
KEY(6, 4, KEY_APOSTROPHE),
KEY(6, 5, TOSA_KEY_MAIL),
KEY(6, 6, KEY_LEFT),
KEY(6, 7, KEY_DOWN),
KEY(6, 8, KEY_RIGHT),
KEY(0, 1, KEY_W),
KEY(0, 5, KEY_K),
KEY(0, 6, KEY_BACKSPACE),
KEY(0, 7, KEY_P),
KEY(1, 0, KEY_Q),
KEY(1, 1, KEY_E),
KEY(1, 2, KEY_T),
KEY(1, 3, KEY_Y),
KEY(1, 5, KEY_O),
KEY(1, 6, KEY_I),
KEY(1, 7, KEY_COMMA),
KEY(2, 0, KEY_A),
KEY(2, 1, KEY_D),
KEY(2, 2, KEY_G),
KEY(2, 3, KEY_U),
KEY(2, 5, KEY_L),
KEY(2, 6, KEY_ENTER),
KEY(2, 7, KEY_DOT),
KEY(3, 0, KEY_Z),
KEY(3, 1, KEY_C),
KEY(3, 2, KEY_V),
KEY(3, 3, KEY_J),
KEY(3, 4, TOSA_KEY_ADDRESSBOOK),
KEY(3, 5, TOSA_KEY_CANCEL),
KEY(3, 6, TOSA_KEY_CENTER),
KEY(3, 7, TOSA_KEY_OK),
KEY(3, 8, KEY_LEFTSHIFT),
KEY(4, 0, KEY_S),
KEY(4, 1, KEY_R),
KEY(4, 2, KEY_B),
KEY(4, 3, KEY_N),
KEY(4, 4, TOSA_KEY_CALENDAR),
KEY(4, 5, TOSA_KEY_HOMEPAGE),
KEY(4, 6, KEY_LEFTCTRL),
KEY(4, 7, TOSA_KEY_LIGHT),
KEY(4, 9, KEY_RIGHTSHIFT),
KEY(5, 0, KEY_TAB),
KEY(5, 1, KEY_SLASH),
KEY(5, 2, KEY_H),
KEY(5, 3, KEY_M),
KEY(5, 4, TOSA_KEY_MENU),
KEY(5, 6, KEY_UP),
KEY(5, 10, TOSA_KEY_FN),
KEY(6, 0, KEY_X),
KEY(6, 1, KEY_F),
KEY(6, 2, KEY_SPACE),
KEY(6, 3, KEY_APOSTROPHE),
KEY(6, 4, TOSA_KEY_MAIL),
KEY(6, 5, KEY_LEFT),
KEY(6, 6, KEY_DOWN),
KEY(6, 7, KEY_RIGHT),
};
static struct matrix_keymap_data tosakbd_keymap_data = {

11
arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
View File

@ -8,8 +8,6 @@
* published by the Free Software Foundation.
*/
#include <linux/clk-provider.h>
#include <linux/irqchip.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
@ -48,15 +46,9 @@ static void __init s3c64xx_dt_map_io(void)
panic("SoC is not S3C64xx!");
}
static void __init s3c64xx_dt_init_irq(void)
{
of_clk_init(NULL);
samsung_wdt_reset_of_init();
irqchip_init();
};
static void __init s3c64xx_dt_init_machine(void)
{
samsung_wdt_reset_of_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
@ -79,7 +71,6 @@ DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
/* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
.dt_compat = s3c64xx_dt_compat,
.map_io = s3c64xx_dt_map_io,
.init_irq = s3c64xx_dt_init_irq,
.init_machine = s3c64xx_dt_init_machine,
.restart = s3c64xx_dt_restart,
MACHINE_END

4
arch/arm/mach-shmobile/board-lager.c
View File

@ -245,7 +245,9 @@ static void __init lager_init(void)
{
lager_add_standard_devices();
phy_register_fixup_for_id("r8a7790-ether-ff:01", lager_ksz8041_fixup);
if (IS_ENABLED(CONFIG_PHYLIB))
phy_register_fixup_for_id("r8a7790-ether-ff:01",
lager_ksz8041_fixup);
}
static const char * const lager_boards_compat_dt[] __initconst = {

2
arch/arm/mach-tegra/fuse.c
View File

@ -198,10 +198,12 @@ void __init tegra_init_fuse(void)
switch (tegra_chip_id) {
case TEGRA20:
tegra20_fuse_init_randomness();
break;
case TEGRA30:
case TEGRA114:
default:
tegra30_fuse_init_randomness();
break;
}
pr_info("Tegra Revision: %s SKU: %d CPU Process: %d Core Process: %d\n",

91
arch/arm/mm/dma-mapping.c
View File

@ -158,13 +158,49 @@ struct dma_map_ops arm_coherent_dma_ops = {
};
EXPORT_SYMBOL(arm_coherent_dma_ops);
static int __dma_supported(struct device *dev, u64 mask, bool warn)
{
unsigned long max_dma_pfn;
/*
* If the mask allows for more memory than we can address,
* and we actually have that much memory, then we must
* indicate that DMA to this device is not supported.
*/
if (sizeof(mask) != sizeof(dma_addr_t) &&
mask > (dma_addr_t)~0 &&
dma_to_pfn(dev, ~0) < max_pfn) {
if (warn) {
dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
mask);
dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
}
return 0;
}
max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
/*
* Translate the device's DMA mask to a PFN limit. This
* PFN number includes the page which we can DMA to.
*/
if (dma_to_pfn(dev, mask) < max_dma_pfn) {
if (warn)
dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
mask,
dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
max_dma_pfn + 1);
return 0;
}
return 1;
}
static u64 get_coherent_dma_mask(struct device *dev)
{
u64 mask = (u64)DMA_BIT_MASK(32);
if (dev) {
unsigned long max_dma_pfn;
mask = dev->coherent_dma_mask;
/*
@ -176,34 +212,8 @@ static u64 get_coherent_dma_mask(struct device *dev)
return 0;
}
max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
/*
* If the mask allows for more memory than we can address,
* and we actually have that much memory, then fail the
* allocation.
*/
if (sizeof(mask) != sizeof(dma_addr_t) &&
mask > (dma_addr_t)~0 &&
dma_to_pfn(dev, ~0) > max_dma_pfn) {
dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
mask);
dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
if (!__dma_supported(dev, mask, true))
return 0;
}
/*
* Now check that the mask, when translated to a PFN,
* fits within the allowable addresses which we can
* allocate.
*/
if (dma_to_pfn(dev, mask) < max_dma_pfn) {
dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
mask,
dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
arm_dma_pfn_limit + 1);
return 0;
}
}
return mask;
@ -1032,28 +1042,7 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
*/
int dma_supported(struct device *dev, u64 mask)
{
unsigned long limit;
/*
* If the mask allows for more memory than we can address,
* and we actually have that much memory, then we must
* indicate that DMA to this device is not supported.
*/
if (sizeof(mask) != sizeof(dma_addr_t) &&
mask > (dma_addr_t)~0 &&
dma_to_pfn(dev, ~0) > arm_dma_pfn_limit)
return 0;
/*
* Translate the device's DMA mask to a PFN limit. This
* PFN number includes the page which we can DMA to.
*/
limit = dma_to_pfn(dev, mask);
if (limit < arm_dma_pfn_limit)
return 0;
return 1;
return __dma_supported(dev, mask, false);
}
EXPORT_SYMBOL(dma_supported);

2
arch/arm/mm/init.c
View File

@ -229,7 +229,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
#ifdef CONFIG_ZONE_DMA
if (mdesc->dma_zone_size) {
arm_dma_zone_size = mdesc->dma_zone_size;
arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
arm_dma_limit = __pv_phys_offset + arm_dma_zone_size - 1;
} else
arm_dma_limit = 0xffffffff;
arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;

6
arch/arm/xen/enlighten.c
View File

@ -96,7 +96,7 @@ static int remap_pte_fn(pte_t *ptep, pgtable_t token, unsigned long addr,
struct remap_data *info = data;
struct page *page = info->pages[info->index++];
unsigned long pfn = page_to_pfn(page);
pte_t pte = pfn_pte(pfn, info->prot);
pte_t pte = pte_mkspecial(pfn_pte(pfn, info->prot));
if (map_foreign_page(pfn, info->fgmfn, info->domid))
return -EFAULT;
@ -224,10 +224,10 @@ static int __init xen_guest_init(void)
}
if (of_address_to_resource(node, GRANT_TABLE_PHYSADDR, &res))
return 0;
xen_hvm_resume_frames = res.start >> PAGE_SHIFT;
xen_hvm_resume_frames = res.start;
xen_events_irq = irq_of_parse_and_map(node, 0);
pr_info("Xen %s support found, events_irq=%d gnttab_frame_pfn=%lx\n",
version, xen_events_irq, xen_hvm_resume_frames);
version, xen_events_irq, (xen_hvm_resume_frames >> PAGE_SHIFT));
xen_domain_type = XEN_HVM_DOMAIN;
xen_setup_features();

3
arch/arm64/Kconfig
View File

@ -159,8 +159,7 @@ config NR_CPUS
range 2 32
depends on SMP
# These have to remain sorted largest to smallest
default "8" if ARCH_XGENE
default "4"
default "8"
config HOTPLUG_CPU
bool "Support for hot-pluggable CPUs"

2
arch/arm64/include/asm/io.h
View File

@ -229,7 +229,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot
extern void __iounmap(volatile void __iomem *addr);
extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
#define PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
#define PROT_DEFAULT (pgprot_default | PTE_DIRTY)
#define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
#define PROT_NORMAL_NC (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
#define PROT_NORMAL (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))

2
arch/arm64/include/asm/pgtable-hwdef.h
View File

@ -43,7 +43,7 @@
* Section
*/
#define PMD_SECT_VALID (_AT(pmdval_t, 1) << 0)
#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 2)
#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 58)
#define PMD_SECT_USER (_AT(pmdval_t, 1) << 6) /* AP[1] */
#define PMD_SECT_RDONLY (_AT(pmdval_t, 1) << 7) /* AP[2] */
#define PMD_SECT_S (_AT(pmdval_t, 3) << 8)

4
arch/arm64/include/asm/xen/page-coherent.h
View File

@ -23,25 +23,21 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
unsigned long offset, size_t size, enum dma_data_direction dir,
struct dma_attrs *attrs)
{
__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
}
static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
size_t size, enum dma_data_direction dir,
struct dma_attrs *attrs)
{
__generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
}
static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
__generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
}
static inline void xen_dma_sync_single_for_device(struct device *hwdev,
dma_addr_t handle, size_t size, enum dma_data_direction dir)
{
__generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
}
#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */

3
arch/arm64/kernel/head.S
View File

@ -282,8 +282,9 @@ ENDPROC(secondary_holding_pen)
* be used where CPUs are brought online dynamically by the kernel.
*/
ENTRY(secondary_entry)
bl __calc_phys_offset // x2=phys offset
bl el2_setup // Drop to EL1
bl __calc_phys_offset // x24=PHYS_OFFSET, x28=PHYS_OFFSET-PAGE_OFFSET
bl set_cpu_boot_mode_flag
b secondary_startup
ENDPROC(secondary_entry)

36
arch/arm64/kernel/ptrace.c
View File

@ -214,31 +214,29 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
{
int err, len, type, disabled = !ctrl.enabled;
if (disabled) {
len = 0;
type = HW_BREAKPOINT_EMPTY;
} else {
err = arch_bp_generic_fields(ctrl, &len, &type);
if (err)
return err;
attr->disabled = disabled;
if (disabled)
return 0;
switch (note_type) {
case NT_ARM_HW_BREAK:
if ((type & HW_BREAKPOINT_X) != type)
return -EINVAL;
break;
case NT_ARM_HW_WATCH:
if ((type & HW_BREAKPOINT_RW) != type)
return -EINVAL;
break;
default:
err = arch_bp_generic_fields(ctrl, &len, &type);
if (err)
return err;
switch (note_type) {
case NT_ARM_HW_BREAK:
if ((type & HW_BREAKPOINT_X) != type)
return -EINVAL;
}
break;
case NT_ARM_HW_WATCH:
if ((type & HW_BREAKPOINT_RW) != type)
return -EINVAL;
break;
default:
return -EINVAL;
}
attr->bp_len = len;
attr->bp_type = type;
attr->disabled = disabled;
return 0;
}

2
arch/arm64/mm/proc.S
View File

@ -111,12 +111,12 @@ ENTRY(__cpu_setup)
bl __flush_dcache_all
mov lr, x28
ic iallu // I+BTB cache invalidate
tlbi vmalle1is // invalidate I + D TLBs
dsb sy
mov x0, #3 << 20
msr cpacr_el1, x0 // Enable FP/ASIMD
msr mdscr_el1, xzr // Reset mdscr_el1
tlbi vmalle1is // invalidate I + D TLBs
/*
* Memory region attributes for LPAE:
*

4
arch/avr32/boards/favr-32/setup.c
View File

@ -298,8 +298,10 @@ static int __init set_abdac_rate(struct platform_device *pdev)
*/
retval = clk_round_rate(pll1,
CONFIG_BOARD_FAVR32_ABDAC_RATE * 256 * 16);
if (retval < 0)
if (retval <= 0) {
retval = -EINVAL;
goto out_abdac;
}
retval = clk_set_rate(pll1, retval);
if (retval != 0)

1
arch/avr32/configs/atngw100_defconfig
View File

@ -59,7 +59,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100_evklcd100_defconfig
View File

@ -61,7 +61,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100_evklcd101_defconfig
View File

@ -60,7 +60,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100_mrmt_defconfig
View File

@ -48,7 +48,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100mkii_defconfig
View File

@ -59,7 +59,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100mkii_evklcd100_defconfig
View File

@ -62,7 +62,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atngw100mkii_evklcd101_defconfig
View File

@ -61,7 +61,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atstk1002_defconfig
View File

@ -53,7 +53,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atstk1003_defconfig
View File

@ -42,7 +42,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atstk1004_defconfig
View File

@ -42,7 +42,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/atstk1006_defconfig
View File

@ -54,7 +54,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/favr-32_defconfig
View File

@ -58,7 +58,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/hammerhead_defconfig
View File

@ -58,7 +58,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

1
arch/avr32/configs/merisc_defconfig
View File

@ -46,7 +46,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_CONCAT=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y

1
arch/avr32/configs/mimc200_defconfig
View File

@ -49,7 +49,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
# CONFIG_FW_LOADER is not set
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y

2
arch/avr32/kernel/time.c
View File

@ -59,7 +59,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
/* Oprofile uses the same irq as the timer, so allow it to be shared */
.flags = IRQF_TIMER | IRQF_DISABLED | IRQF_SHARED,
.flags = IRQF_TIMER | IRQF_SHARED,
.name = "avr32_comparator",
};

2
arch/avr32/mach-at32ap/pm.c
View File

@ -181,7 +181,7 @@ static const struct platform_suspend_ops avr32_pm_ops = {
.enter = avr32_pm_enter,
};
static unsigned long avr32_pm_offset(void *symbol)
static unsigned long __init avr32_pm_offset(void *symbol)
{
extern u8 pm_exception[];

1
arch/powerpc/boot/dts/mpc5121.dtsi
View File

@ -77,7 +77,6 @@
compatible = "fsl,mpc5121-immr";
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
ranges = <0x0 0x80000000 0x400000>;
reg = <0x80000000 0x400000>;
bus-frequency = <66000000>; /* 66 MHz ips bus */

3
arch/powerpc/configs/52xx/cm5200_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_EXPERT=y
CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_SPARSE_IRQ=y
CONFIG_PM=y
# CONFIG_PCI is not set
@ -71,6 +70,8 @@ CONFIG_USB_DEVICEFS=y
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_STORAGE=y
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

3
arch/powerpc/configs/52xx/lite5200b_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
CONFIG_PPC_LITE5200=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_SPARSE_IRQ=y
@ -59,6 +58,8 @@ CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MPC=y
# CONFIG_HWMON is not set
CONFIG_VIDEO_OUTPUT_CONTROL=m
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

3
arch/powerpc/configs/52xx/motionpro_defconfig
View File

@ -12,7 +12,6 @@ CONFIG_EXPERT=y
CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_SPARSE_IRQ=y
CONFIG_PM=y
# CONFIG_PCI is not set
@ -84,6 +83,8 @@ CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

3
arch/powerpc/configs/52xx/pcm030_defconfig
View File

@ -21,7 +21,6 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_HZ_100=y
@ -87,6 +86,8 @@ CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
CONFIG_USB_STORAGE=m
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_PCF8563=m
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=m
CONFIG_EXT3_FS=m
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

3
arch/powerpc/configs/52xx/tqm5200_defconfig
View File

@ -17,7 +17,6 @@ CONFIG_PPC_MPC52xx=y
CONFIG_PPC_MPC5200_SIMPLE=y
CONFIG_PPC_MPC5200_BUGFIX=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_PM=y
# CONFIG_PCI is not set
CONFIG_NET=y
@ -86,6 +85,8 @@ CONFIG_USB_STORAGE=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

3
arch/powerpc/configs/mpc5200_defconfig
View File

@ -15,7 +15,6 @@ CONFIG_PPC_MEDIA5200=y
CONFIG_PPC_MPC5200_BUGFIX=y
CONFIG_PPC_MPC5200_LPBFIFO=m
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_BESTCOMM=y
CONFIG_SIMPLE_GPIO=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@ -125,6 +124,8 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_DS1307=y
CONFIG_RTC_DRV_DS1374=y
CONFIG_RTC_DRV_PCF8563=m
CONFIG_DMADEVICES=y
CONFIG_PPC_BESTCOMM=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

7
arch/powerpc/configs/pasemi_defconfig
View File

@ -2,7 +2,6 @@ CONFIG_PPC64=y
CONFIG_ALTIVEC=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@ -45,8 +44,9 @@ CONFIG_INET_AH=y
CONFIG_INET_ESP=y
# CONFIG_IPV6 is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_MTD=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_SLRAM=y
CONFIG_MTD_PHRAM=y
@ -88,7 +88,6 @@ CONFIG_BLK_DEV_DM=y
CONFIG_DM_CRYPT=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_MII=y
CONFIG_TIGON3=y
CONFIG_E1000=y
CONFIG_PASEMI_MAC=y
@ -174,8 +173,8 @@ CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_CRC_CCITT=y
CONFIG_PRINTK_TIME=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DETECT_HUNG_TASK=y
# CONFIG_SCHED_DEBUG is not set

4
arch/powerpc/include/asm/kvm_book3s.h
View File

@ -192,6 +192,10 @@ extern void kvmppc_load_up_vsx(void);
extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
struct kvm_vcpu *vcpu);
extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
struct kvmppc_book3s_shadow_vcpu *svcpu);
static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
{

2
arch/powerpc/include/asm/kvm_book3s_asm.h
View File

@ -79,6 +79,7 @@ struct kvmppc_host_state {
ulong vmhandler;
ulong scratch0;
ulong scratch1;
ulong scratch2;
u8 in_guest;
u8 restore_hid5;
u8 napping;
@ -106,6 +107,7 @@ struct kvmppc_host_state {
};
struct kvmppc_book3s_shadow_vcpu {
bool in_use;
ulong gpr[14];
u32 cr;
u32 xer;

4
arch/powerpc/include/asm/opal.h
View File

@ -720,13 +720,13 @@ int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe,
int64_t opal_pci_poll(uint64_t phb_id);
int64_t opal_return_cpu(void);
int64_t opal_xscom_read(uint32_t gcid, uint32_t pcb_addr, uint64_t *val);
int64_t opal_xscom_read(uint32_t gcid, uint32_t pcb_addr, __be64 *val);
int64_t opal_xscom_write(uint32_t gcid, uint32_t pcb_addr, uint64_t val);
int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type,
uint32_t addr, uint32_t data, uint32_t sz);
int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type,
uint32_t addr, uint32_t *data, uint32_t sz);
uint32_t addr, __be32 *data, uint32_t sz);
int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result);
int64_t opal_manage_flash(uint8_t op);
int64_t opal_update_flash(uint64_t blk_list);

6
arch/powerpc/include/asm/pgalloc-32.h
View File

@ -84,10 +84,8 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb,
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
unsigned long address)
{
struct page *page = page_address(table);
tlb_flush_pgtable(tlb, address);
pgtable_page_dtor(page);
pgtable_free_tlb(tlb, page, 0);
pgtable_page_dtor(table);
pgtable_free_tlb(tlb, page_address(table), 0);
}
#endif /* _ASM_POWERPC_PGALLOC_32_H */

6
arch/powerpc/include/asm/pgalloc-64.h
View File

@ -148,11 +148,9 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb,
static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
unsigned long address)
{
struct page *page = page_address(table);
tlb_flush_pgtable(tlb, address);
pgtable_page_dtor(page);
pgtable_free_tlb(tlb, page, 0);
pgtable_page_dtor(table);
pgtable_free_tlb(tlb, page_address(table), 0);
}
#else /* if CONFIG_PPC_64K_PAGES */

2
arch/powerpc/include/asm/switch_to.h
View File

@ -35,7 +35,7 @@ extern void giveup_vsx(struct task_struct *);
extern void enable_kernel_spe(void);
extern void giveup_spe(struct task_struct *);
extern void load_up_spe(struct task_struct *);
extern void switch_booke_debug_regs(struct thread_struct *new_thread);
extern void switch_booke_debug_regs(struct debug_reg *new_debug);
#ifndef CONFIG_SMP
extern void discard_lazy_cpu_state(void);

1
arch/powerpc/kernel/asm-offsets.c
View File

@ -576,6 +576,7 @@ int main(void)
HSTATE_FIELD(HSTATE_VMHANDLER, vmhandler);
HSTATE_FIELD(HSTATE_SCRATCH0, scratch0);
HSTATE_FIELD(HSTATE_SCRATCH1, scratch1);
HSTATE_FIELD(HSTATE_SCRATCH2, scratch2);
HSTATE_FIELD(HSTATE_IN_GUEST, in_guest);
HSTATE_FIELD(HSTATE_RESTORE_HID5, restore_hid5);
HSTATE_FIELD(HSTATE_NAPPING, napping);

6
arch/powerpc/kernel/crash_dump.c
View File

@ -124,15 +124,15 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
void crash_free_reserved_phys_range(unsigned long begin, unsigned long end)
{
unsigned long addr;
const u32 *basep, *sizep;
const __be32 *basep, *sizep;
unsigned int rtas_start = 0, rtas_end = 0;
basep = of_get_property(rtas.dev, "linux,rtas-base", NULL);
sizep = of_get_property(rtas.dev, "rtas-size", NULL);
if (basep && sizep) {
rtas_start = *basep;
rtas_end = *basep + *sizep;
rtas_start = be32_to_cpup(basep);
rtas_end = rtas_start + be32_to_cpup(sizep);
}
for (addr = begin; addr < end; addr += PAGE_SIZE) {

2
arch/powerpc/kernel/machine_kexec.c
View File

@ -148,7 +148,7 @@ void __init reserve_crashkernel(void)
* a small SLB (128MB) since the crash kernel needs to place
* itself and some stacks to be in the first segment.
*/
crashk_res.start = min(0x80000000ULL, (ppc64_rma_size / 2));
crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2));
#else
crashk_res.start = KDUMP_KERNELBASE;
#endif

5
arch/powerpc/kernel/misc_64.S
View File

@ -246,8 +246,8 @@ _GLOBAL(__bswapdi2)
or r3,r7,r9
blr
#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
#ifdef CONFIG_PPC_EARLY_DEBUG_BOOTX
_GLOBAL(rmci_on)
sync
isync
@ -277,6 +277,9 @@ _GLOBAL(rmci_off)
isync
sync
blr
#endif /* CONFIG_PPC_EARLY_DEBUG_BOOTX */
#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
/*
* Do an IO access in real mode

32
arch/powerpc/kernel/process.c
View File

@ -339,7 +339,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread)
#endif
}
static void prime_debug_regs(struct thread_struct *thread)
static void prime_debug_regs(struct debug_reg *debug)
{
/*
* We could have inherited MSR_DE from userspace, since
@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread)
*/
mtmsr(mfmsr() & ~MSR_DE);
mtspr(SPRN_IAC1, thread->debug.iac1);
mtspr(SPRN_IAC2, thread->debug.iac2);
mtspr(SPRN_IAC1, debug->iac1);
mtspr(SPRN_IAC2, debug->iac2);
#if CONFIG_PPC_ADV_DEBUG_IACS > 2
mtspr(SPRN_IAC3, thread->debug.iac3);
mtspr(SPRN_IAC4, thread->debug.iac4);
mtspr(SPRN_IAC3, debug->iac3);
mtspr(SPRN_IAC4, debug->iac4);
#endif
mtspr(SPRN_DAC1, thread->debug.dac1);
mtspr(SPRN_DAC2, thread->debug.dac2);
mtspr(SPRN_DAC1, debug->dac1);
mtspr(SPRN_DAC2, debug->dac2);
#if CONFIG_PPC_ADV_DEBUG_DVCS > 0
mtspr(SPRN_DVC1, thread->debug.dvc1);
mtspr(SPRN_DVC2, thread->debug.dvc2);
mtspr(SPRN_DVC1, debug->dvc1);
mtspr(SPRN_DVC2, debug->dvc2);
#endif
mtspr(SPRN_DBCR0, thread->debug.dbcr0);
mtspr(SPRN_DBCR1, thread->debug.dbcr1);
mtspr(SPRN_DBCR0, debug->dbcr0);
mtspr(SPRN_DBCR1, debug->dbcr1);
#ifdef CONFIG_BOOKE
mtspr(SPRN_DBCR2, thread->debug.dbcr2);
mtspr(SPRN_DBCR2, debug->dbcr2);
#endif
}
/*
@ -371,11 +371,11 @@ static void prime_debug_regs(struct thread_struct *thread)
* debug registers, set the debug registers from the values
* stored in the new thread.
*/
void switch_booke_debug_regs(struct thread_struct *new_thread)
void switch_booke_debug_regs(struct debug_reg *new_debug)
{
if ((current->thread.debug.dbcr0 & DBCR0_IDM)
|| (new_thread->debug.dbcr0 & DBCR0_IDM))
prime_debug_regs(new_thread);
|| (new_debug->dbcr0 & DBCR0_IDM))
prime_debug_regs(new_debug);
}
EXPORT_SYMBOL_GPL(switch_booke_debug_regs);
#else /* !CONFIG_PPC_ADV_DEBUG_REGS */
@ -683,7 +683,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
#endif /* CONFIG_SMP */
#ifdef CONFIG_PPC_ADV_DEBUG_REGS
switch_booke_debug_regs(&new->thread);
switch_booke_debug_regs(&new->thread.debug);
#else
/*
* For PPC_BOOK3S_64, we use the hw-breakpoint interfaces that would

4
arch/powerpc/kernel/ptrace.c
View File

@ -1555,7 +1555,7 @@ long arch_ptrace(struct task_struct *child, long request,
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
memcpy(&tmp, &child->thread.fp_state.fpr,
memcpy(&tmp, &child->thread.TS_FPR(fpidx),
sizeof(long));
else
tmp = child->thread.fp_state.fpscr;
@ -1588,7 +1588,7 @@ long arch_ptrace(struct task_struct *child, long request,
flush_fp_to_thread(child);
if (fpidx < (PT_FPSCR - PT_FPR0))
memcpy(&child->thread.fp_state.fpr, &data,
memcpy(&child->thread.TS_FPR(fpidx), &data,
sizeof(long));
else
child->thread.fp_state.fpscr = data;

4
arch/powerpc/kernel/setup-common.c
View File

@ -479,7 +479,7 @@ void __init smp_setup_cpu_maps(void)
if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
(dn = of_find_node_by_path("/rtas"))) {
int num_addr_cell, num_size_cell, maxcpus;
const unsigned int *ireg;
const __be32 *ireg;
num_addr_cell = of_n_addr_cells(dn);
num_size_cell = of_n_size_cells(dn);
@ -489,7 +489,7 @@ void __init smp_setup_cpu_maps(void)
if (!ireg)
goto out;
maxcpus = ireg[num_addr_cell + num_size_cell];
maxcpus = be32_to_cpup(ireg + num_addr_cell + num_size_cell);
/* Double maxcpus for processors which have SMT capability */
if (cpu_has_feature(CPU_FTR_SMT))

4
arch/powerpc/kernel/smp.c
View File

@ -580,7 +580,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
int cpu_to_core_id(int cpu)
{
struct device_node *np;
const int *reg;
const __be32 *reg;
int id = -1;
np = of_get_cpu_node(cpu, NULL);
@ -591,7 +591,7 @@ int cpu_to_core_id(int cpu)
if (!reg)
goto out;
id = *reg;
id = be32_to_cpup(reg);
out:
of_node_put(np);
return id;

18
arch/powerpc/kvm/book3s_64_mmu_hv.c
View File

@ -469,11 +469,14 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
slb_v = vcpu->kvm->arch.vrma_slb_v;
}
preempt_disable();
/* Find the HPTE in the hash table */
index = kvmppc_hv_find_lock_hpte(kvm, eaddr, slb_v,
HPTE_V_VALID | HPTE_V_ABSENT);
if (index < 0)
if (index < 0) {
preempt_enable();
return -ENOENT;
}
hptep = (unsigned long *)(kvm->arch.hpt_virt + (index << 4));
v = hptep[0] & ~HPTE_V_HVLOCK;
gr = kvm->arch.revmap[index].guest_rpte;
@ -481,6 +484,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
/* Unlock the HPTE */
asm volatile("lwsync" : : : "memory");
hptep[0] = v;
preempt_enable();
gpte->eaddr = eaddr;
gpte->vpage = ((v & HPTE_V_AVPN) << 4) | ((eaddr >> 12) & 0xfff);
@ -665,6 +669,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
return -EFAULT;
} else {
page = pages[0];
pfn = page_to_pfn(page);
if (PageHuge(page)) {
page = compound_head(page);
pte_size <<= compound_order(page);
@ -689,7 +694,6 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
}
rcu_read_unlock_sched();
}
pfn = page_to_pfn(page);
}
ret = -EFAULT;
@ -707,8 +711,14 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = (r & ~(HPTE_R_W|HPTE_R_I|HPTE_R_G)) | HPTE_R_M;
}
/* Set the HPTE to point to pfn */
r = (r & ~(HPTE_R_PP0 - pte_size)) | (pfn << PAGE_SHIFT);
/*
* Set the HPTE to point to pfn.
* Since the pfn is at PAGE_SIZE granularity, make sure we
* don't mask out lower-order bits if psize < PAGE_SIZE.
*/
if (psize < PAGE_SIZE)
psize = PAGE_SIZE;
r = (r & ~(HPTE_R_PP0 - psize)) | ((pfn << PAGE_SHIFT) & ~(psize - 1));
if (hpte_is_writable(r) && !write_ok)
r = hpte_make_readonly(r);
ret = RESUME_GUEST;

24
arch/powerpc/kvm/book3s_hv.c
View File

@ -131,8 +131,9 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu)
{
struct kvmppc_vcore *vc = vcpu->arch.vcore;
unsigned long flags;
spin_lock(&vcpu->arch.tbacct_lock);
spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags);
if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE &&
vc->preempt_tb != TB_NIL) {
vc->stolen_tb += mftb() - vc->preempt_tb;
@ -143,19 +144,20 @@ static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu)
vcpu->arch.busy_stolen += mftb() - vcpu->arch.busy_preempt;
vcpu->arch.busy_preempt = TB_NIL;
}
spin_unlock(&vcpu->arch.tbacct_lock);
spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags);
}
static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcore *vc = vcpu->arch.vcore;
unsigned long flags;
spin_lock(&vcpu->arch.tbacct_lock);
spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags);
if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE)
vc->preempt_tb = mftb();
if (vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST)
vcpu->arch.busy_preempt = mftb();
spin_unlock(&vcpu->arch.tbacct_lock);
spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags);
}
static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr)
@ -486,11 +488,11 @@ static u64 vcore_stolen_time(struct kvmppc_vcore *vc, u64 now)
*/
if (vc->vcore_state != VCORE_INACTIVE &&
vc->runner->arch.run_task != current) {
spin_lock(&vc->runner->arch.tbacct_lock);
spin_lock_irq(&vc->runner->arch.tbacct_lock);
p = vc->stolen_tb;
if (vc->preempt_tb != TB_NIL)
p += now - vc->preempt_tb;
spin_unlock(&vc->runner->arch.tbacct_lock);
spin_unlock_irq(&vc->runner->arch.tbacct_lock);
} else {
p = vc->stolen_tb;
}
@ -512,10 +514,10 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
core_stolen = vcore_stolen_time(vc, now);
stolen = core_stolen - vcpu->arch.stolen_logged;
vcpu->arch.stolen_logged = core_stolen;
spin_lock(&vcpu->arch.tbacct_lock);
spin_lock_irq(&vcpu->arch.tbacct_lock);
stolen += vcpu->arch.busy_stolen;
vcpu->arch.busy_stolen = 0;
spin_unlock(&vcpu->arch.tbacct_lock);
spin_unlock_irq(&vcpu->arch.tbacct_lock);
if (!dt || !vpa)
return;
memset(dt, 0, sizeof(struct dtl_entry));
@ -589,7 +591,9 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
if (list_empty(&vcpu->kvm->arch.rtas_tokens))
return RESUME_HOST;
idx = srcu_read_lock(&vcpu->kvm->srcu);
rc = kvmppc_rtas_hcall(vcpu);
srcu_read_unlock(&vcpu->kvm->srcu, idx);
if (rc == -ENOENT)
return RESUME_HOST;
@ -1115,13 +1119,13 @@ static void kvmppc_remove_runnable(struct kvmppc_vcore *vc,
if (vcpu->arch.state != KVMPPC_VCPU_RUNNABLE)
return;
spin_lock(&vcpu->arch.tbacct_lock);
spin_lock_irq(&vcpu->arch.tbacct_lock);
now = mftb();
vcpu->arch.busy_stolen += vcore_stolen_time(vc, now) -
vcpu->arch.stolen_logged;
vcpu->arch.busy_preempt = now;
vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST;
spin_unlock(&vcpu->arch.tbacct_lock);
spin_unlock_irq(&vcpu->arch.tbacct_lock);
--vc->n_runnable;
list_del(&vcpu->arch.run_list);
}

9
arch/powerpc/kvm/book3s_hv_rm_mmu.c
View File

@ -225,6 +225,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
is_io = pa & (HPTE_R_I | HPTE_R_W);
pte_size = PAGE_SIZE << (pa & KVMPPC_PAGE_ORDER_MASK);
pa &= PAGE_MASK;
pa |= gpa & ~PAGE_MASK;
} else {
/* Translate to host virtual address */
hva = __gfn_to_hva_memslot(memslot, gfn);
@ -238,13 +239,13 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
ptel = hpte_make_readonly(ptel);
is_io = hpte_cache_bits(pte_val(pte));
pa = pte_pfn(pte) << PAGE_SHIFT;
pa |= hva & (pte_size - 1);
pa |= gpa & ~PAGE_MASK;
}
}
if (pte_size < psize)
return H_PARAMETER;
if (pa && pte_size > psize)
pa |= gpa & (pte_size - 1);
ptel &= ~(HPTE_R_PP0 - psize);
ptel |= pa;
@ -749,6 +750,10 @@ static int slb_base_page_shift[4] = {
20, /* 1M, unsupported */
};
/* When called from virtmode, this func should be protected by
* preempt_disable(), otherwise, the holding of HPTE_V_HVLOCK
* can trigger deadlock issue.
*/
long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
unsigned long valid)
{

23
arch/powerpc/kvm/book3s_hv_rmhandlers.S
View File

@ -153,7 +153,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
13: b machine_check_fwnmi
/*
* We come in here when wakened from nap mode on a secondary hw thread.
* Relocation is off and most register values are lost.
@ -224,6 +223,11 @@ kvm_start_guest:
/* Clear our vcpu pointer so we don't come back in early */
li r0, 0
std r0, HSTATE_KVM_VCPU(r13)
/*
* Make sure we clear HSTATE_KVM_VCPU(r13) before incrementing
* the nap_count, because once the increment to nap_count is
* visible we could be given another vcpu.
*/
lwsync
/* Clear any pending IPI - we're an offline thread */
ld r5, HSTATE_XICS_PHYS(r13)
@ -241,7 +245,6 @@ kvm_start_guest:
/* increment the nap count and then go to nap mode */
ld r4, HSTATE_KVM_VCORE(r13)
addi r4, r4, VCORE_NAP_COUNT
lwsync /* make previous updates visible */
51: lwarx r3, 0, r4
addi r3, r3, 1
stwcx. r3, 0, r4
@ -751,15 +754,14 @@ kvmppc_interrupt_hv:
* guest CR, R12 saved in shadow VCPU SCRATCH1/0
* guest R13 saved in SPRN_SCRATCH0
*/
/* abuse host_r2 as third scratch area; we get r2 from PACATOC(r13) */
std r9, HSTATE_HOST_R2(r13)
std r9, HSTATE_SCRATCH2(r13)
lbz r9, HSTATE_IN_GUEST(r13)
cmpwi r9, KVM_GUEST_MODE_HOST_HV
beq kvmppc_bad_host_intr
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
cmpwi r9, KVM_GUEST_MODE_GUEST
ld r9, HSTATE_HOST_R2(r13)
ld r9, HSTATE_SCRATCH2(r13)
beq kvmppc_interrupt_pr
#endif
/* We're now back in the host but in guest MMU context */
@ -779,7 +781,7 @@ kvmppc_interrupt_hv:
std r6, VCPU_GPR(R6)(r9)
std r7, VCPU_GPR(R7)(r9)
std r8, VCPU_GPR(R8)(r9)
ld r0, HSTATE_HOST_R2(r13)
ld r0, HSTATE_SCRATCH2(r13)
std r0, VCPU_GPR(R9)(r9)
std r10, VCPU_GPR(R10)(r9)
std r11, VCPU_GPR(R11)(r9)
@ -990,14 +992,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
*/
/* Increment the threads-exiting-guest count in the 0xff00
bits of vcore->entry_exit_count */
lwsync
ld r5,HSTATE_KVM_VCORE(r13)
addi r6,r5,VCORE_ENTRY_EXIT
41: lwarx r3,0,r6
addi r0,r3,0x100
stwcx. r0,0,r6
bne 41b
lwsync
isync /* order stwcx. vs. reading napping_threads */
/*
* At this point we have an interrupt that we have to pass
@ -1030,6 +1031,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
sld r0,r0,r4
andc. r3,r3,r0 /* no sense IPI'ing ourselves */
beq 43f
/* Order entry/exit update vs. IPIs */
sync
mulli r4,r4,PACA_SIZE /* get paca for thread 0 */
subf r6,r4,r13
42: andi. r0,r3,1
@ -1638,10 +1641,10 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
bge kvm_cede_exit
stwcx. r4,0,r6
bne 31b
/* order napping_threads update vs testing entry_exit_count */
isync
li r0,1
stb r0,HSTATE_NAPPING(r13)
/* order napping_threads update vs testing entry_exit_count */
lwsync
mr r4,r3
lwz r7,VCORE_ENTRY_EXIT(r5)
cmpwi r7,0x100

19
arch/powerpc/kvm/book3s_interrupts.S
View File

@ -129,29 +129,32 @@ kvm_start_lightweight:
* R12 = exit handler id
* R13 = PACA
* SVCPU.* = guest *
* MSR.EE = 1
*
*/
PPC_LL r3, GPR4(r1) /* vcpu pointer */
/*
* kvmppc_copy_from_svcpu can clobber volatile registers, save
* the exit handler id to the vcpu and restore it from there later.
*/
stw r12, VCPU_TRAP(r3)
/* Transfer reg values from shadow vcpu back to vcpu struct */
/* On 64-bit, interrupts are still off at this point */
PPC_LL r3, GPR4(r1) /* vcpu pointer */
GET_SHADOW_VCPU(r4)
bl FUNC(kvmppc_copy_from_svcpu)
nop
#ifdef CONFIG_PPC_BOOK3S_64
/* Re-enable interrupts */
ld r3, HSTATE_HOST_MSR(r13)
ori r3, r3, MSR_EE
MTMSR_EERI(r3)
/*
* Reload kernel SPRG3 value.
* No need to save guest value as usermode can't modify SPRG3.
*/
ld r3, PACA_SPRG3(r13)
mtspr SPRN_SPRG3, r3
#endif /* CONFIG_PPC_BOOK3S_64 */
/* R7 = vcpu */
@ -177,7 +180,7 @@ kvm_start_lightweight:
PPC_STL r31, VCPU_GPR(R31)(r7)
/* Pass the exit number as 3rd argument to kvmppc_handle_exit */
mr r5, r12
lwz r5, VCPU_TRAP(r7)
/* Restore r3 (kvm_run) and r4 (vcpu) */
REST_2GPRS(3, r1)

22
arch/powerpc/kvm/book3s_pr.c
View File

@ -66,6 +66,7 @@ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu)
struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb));
svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max;
svcpu->in_use = 0;
svcpu_put(svcpu);
#endif
vcpu->cpu = smp_processor_id();
@ -78,6 +79,9 @@ static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_PPC_BOOK3S_64
struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
if (svcpu->in_use) {
kvmppc_copy_from_svcpu(vcpu, svcpu);
}
memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb));
to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max;
svcpu_put(svcpu);
@ -110,12 +114,26 @@ void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
svcpu->ctr = vcpu->arch.ctr;
svcpu->lr = vcpu->arch.lr;
svcpu->pc = vcpu->arch.pc;
svcpu->in_use = true;
}
/* Copy data touched by real-mode code from shadow vcpu back to vcpu */
void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
struct kvmppc_book3s_shadow_vcpu *svcpu)
{
/*
* vcpu_put would just call us again because in_use hasn't
* been updated yet.
*/
preempt_disable();
/*
* Maybe we were already preempted and synced the svcpu from
* our preempt notifiers. Don't bother touching this svcpu then.
*/
if (!svcpu->in_use)
goto out;
vcpu->arch.gpr[0] = svcpu->gpr[0];
vcpu->arch.gpr[1] = svcpu->gpr[1];
vcpu->arch.gpr[2] = svcpu->gpr[2];
@ -139,6 +157,10 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
vcpu->arch.fault_dar = svcpu->fault_dar;
vcpu->arch.fault_dsisr = svcpu->fault_dsisr;
vcpu->arch.last_inst = svcpu->last_inst;
svcpu->in_use = false;
out:
preempt_enable();
}
static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)

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