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Merge branch 'master' into for-2.6.35

Browse source 
Conflicts:
	fs/block_dev.c

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2010-04-29 09:36:24 +02:00
commit 7407cf355f
486 changed files with 7901 additions and 3111 deletions
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2
Documentation/HOWTO
View file

@ -234,7 +234,7 @@ process is as follows:
Linus, usually the patches that have already been included in the
-next kernel for a few weeks. The preferred way to submit big changes
is using git (the kernel's source management tool, more information
can be found at http://git.or.cz/) but plain patches are also just
can be found at http://git-scm.com/) but plain patches are also just
fine.
- After two weeks a -rc1 kernel is released it is now possible to push
only patches that do not include new features that could affect the

37
Documentation/RCU/NMI-RCU.txt
View file

@ -34,7 +34,7 @@ NMI handler.
cpu = smp_processor_id();
++nmi_count(cpu);
if (!rcu_dereference(nmi_callback)(regs, cpu))
if (!rcu_dereference_sched(nmi_callback)(regs, cpu))
default_do_nmi(regs);
nmi_exit();
@ -47,12 +47,13 @@ function pointer. If this handler returns zero, do_nmi() invokes the
default_do_nmi() function to handle a machine-specific NMI. Finally,
preemption is restored.
Strictly speaking, rcu_dereference() is not needed, since this code runs
only on i386, which does not need rcu_dereference() anyway. However,
it is a good documentation aid, particularly for anyone attempting to
do something similar on Alpha.
In theory, rcu_dereference_sched() is not needed, since this code runs
only on i386, which in theory does not need rcu_dereference_sched()
anyway. However, in practice it is a good documentation aid, particularly
for anyone attempting to do something similar on Alpha or on systems
with aggressive optimizing compilers.
Quick Quiz: Why might the rcu_dereference() be necessary on Alpha,
Quick Quiz: Why might the rcu_dereference_sched() be necessary on Alpha,
given that the code referenced by the pointer is read-only?
@ -99,17 +100,21 @@ invoke irq_enter() and irq_exit() on NMI entry and exit, respectively.
Answer to Quick Quiz
Why might the rcu_dereference() be necessary on Alpha, given
Why might the rcu_dereference_sched() be necessary on Alpha, given
that the code referenced by the pointer is read-only?
Answer: The caller to set_nmi_callback() might well have
initialized some data that is to be used by the
new NMI handler. In this case, the rcu_dereference()
would be needed, because otherwise a CPU that received
an NMI just after the new handler was set might see
the pointer to the new NMI handler, but the old
pre-initialized version of the handler's data.
initialized some data that is to be used by the new NMI
handler. In this case, the rcu_dereference_sched() would
be needed, because otherwise a CPU that received an NMI
just after the new handler was set might see the pointer
to the new NMI handler, but the old pre-initialized
version of the handler's data.
More important, the rcu_dereference() makes it clear
to someone reading the code that the pointer is being
protected by RCU.
This same sad story can happen on other CPUs when using
a compiler with aggressive pointer-value speculation
optimizations.
More important, the rcu_dereference_sched() makes it
clear to someone reading the code that the pointer is
being protected by RCU-sched.

7
Documentation/RCU/checklist.txt
View file

@ -260,7 +260,8 @@ over a rather long period of time, but improvements are always welcome!
The reason that it is permissible to use RCU list-traversal
primitives when the update-side lock is held is that doing so
can be quite helpful in reducing code bloat when common code is
shared between readers and updaters.
shared between readers and updaters. Additional primitives
are provided for this case, as discussed in lockdep.txt.
10. Conversely, if you are in an RCU read-side critical section,
and you don't hold the appropriate update-side lock, you -must-
@ -344,8 +345,8 @@ over a rather long period of time, but improvements are always welcome!
requiring SRCU's read-side deadlock immunity or low read-side
realtime latency.
Note that, rcu_assign_pointer() and rcu_dereference() relate to
SRCU just as they do to other forms of RCU.
Note that, rcu_assign_pointer() relates to SRCU just as they do
to other forms of RCU.
15. The whole point of call_rcu(), synchronize_rcu(), and friends
is to wait until all pre-existing readers have finished before

28
Documentation/RCU/lockdep.txt
View file

@ -32,9 +32,20 @@ checking of rcu_dereference() primitives:
srcu_dereference(p, sp):
Check for SRCU read-side critical section.
rcu_dereference_check(p, c):
Use explicit check expression "c".
Use explicit check expression "c". This is useful in
code that is invoked by both readers and updaters.
rcu_dereference_raw(p)
Don't check. (Use sparingly, if at all.)
rcu_dereference_protected(p, c):
Use explicit check expression "c", and omit all barriers
and compiler constraints. This is useful when the data
structure cannot change, for example, in code that is
invoked only by updaters.
rcu_access_pointer(p):
Return the value of the pointer and omit all barriers,
but retain the compiler constraints that prevent duplicating
or coalescsing. This is useful when when testing the
value of the pointer itself, for example, against NULL.
The rcu_dereference_check() check expression can be any boolean
expression, but would normally include one of the rcu_read_lock_held()
@ -59,7 +70,20 @@ In case (1), the pointer is picked up in an RCU-safe manner for vanilla
RCU read-side critical sections, in case (2) the ->file_lock prevents
any change from taking place, and finally, in case (3) the current task
is the only task accessing the file_struct, again preventing any change
from taking place.
from taking place. If the above statement was invoked only from updater
code, it could instead be written as follows:
file = rcu_dereference_protected(fdt->fd[fd],
lockdep_is_held(&files->file_lock) ||
atomic_read(&files->count) == 1);
This would verify cases #2 and #3 above, and furthermore lockdep would
complain if this was used in an RCU read-side critical section unless one
of these two cases held. Because rcu_dereference_protected() omits all
barriers and compiler constraints, it generates better code than do the
other flavors of rcu_dereference(). On the other hand, it is illegal
to use rcu_dereference_protected() if either the RCU-protected pointer
or the RCU-protected data that it points to can change concurrently.
There are currently only "universal" versions of the rcu_assign_pointer()
and RCU list-/tree-traversal primitives, which do not (yet) check for

6
Documentation/RCU/whatisRCU.txt
View file

@ -840,6 +840,12 @@ SRCU: Initialization/cleanup
init_srcu_struct
cleanup_srcu_struct
All: lockdep-checked RCU-protected pointer access
rcu_dereference_check
rcu_dereference_protected
rcu_access_pointer
See the comment headers in the source code (or the docbook generated
from them) for more information.

3
Documentation/cgroups/cgroups.txt
View file

@ -235,8 +235,7 @@ containing the following files describing that cgroup:
- cgroup.procs: list of tgids in the cgroup. This list is not
guaranteed to be sorted or free of duplicate tgids, and userspace
should sort/uniquify the list if this property is required.
Writing a tgid into this file moves all threads with that tgid into
this cgroup.
This is a read-only file, for now.
- notify_on_release flag: run the release agent on exit?
- release_agent: the path to use for release notifications (this file
exists in the top cgroup only)

23
Documentation/input/multi-touch-protocol.txt
View file

@ -68,6 +68,22 @@ like:
SYN_MT_REPORT
SYN_REPORT
Here is the sequence after lifting one of the fingers:
ABS_MT_POSITION_X
ABS_MT_POSITION_Y
SYN_MT_REPORT
SYN_REPORT
And here is the sequence after lifting the remaining finger:
SYN_MT_REPORT
SYN_REPORT
If the driver reports one of BTN_TOUCH or ABS_PRESSURE in addition to the
ABS_MT events, the last SYN_MT_REPORT event may be omitted. Otherwise, the
last SYN_REPORT will be dropped by the input core, resulting in no
zero-finger event reaching userland.
Event Semantics
---------------
@ -217,11 +233,6 @@ where examples can be found.
difference between the contact position and the approaching tool position
could be used to derive tilt.
[2] The list can of course be extended.
[3] The multi-touch X driver is currently in the prototyping stage. At the
time of writing (April 2009), the MT protocol is not yet merged, and the
prototype implements finger matching, basic mouse support and two-finger
scrolling. The project aims at improving the quality of current multi-touch
functionality available in the Synaptics X driver, and in addition
implement more advanced gestures.
[3] Multitouch X driver project: http://bitmath.org/code/multitouch/.
[4] See the section on event computation.
[5] See the section on finger tracking.

7
Documentation/kernel-parameters.txt
View file

@ -320,11 +320,6 @@ and is between 256 and 4096 characters. It is defined in the file
amd_iommu= [HW,X86-84]
Pass parameters to the AMD IOMMU driver in the system.
Possible values are:
isolate - enable device isolation (each device, as far
as possible, will get its own protection
domain) [default]
share - put every device behind one IOMMU into the
same protection domain
fullflush - enable flushing of IO/TLB entries when
they are unmapped. Otherwise they are
flushed before they will be reused, which
@ -1199,7 +1194,7 @@ and is between 256 and 4096 characters. It is defined in the file
libata.force= [LIBATA] Force configurations. The format is comma
separated list of "[ID:]VAL" where ID is
PORT[:DEVICE]. PORT and DEVICE are decimal numbers
PORT[.DEVICE]. PORT and DEVICE are decimal numbers
matching port, link or device. Basically, it matches
the ATA ID string printed on console by libata. If
the whole ID part is omitted, the last PORT and DEVICE

76
Documentation/networking/timestamping.txt
View file

@ -41,11 +41,12 @@ SOF_TIMESTAMPING_SOFTWARE: return system time stamp generated in
SOF_TIMESTAMPING_TX/RX determine how time stamps are generated.
SOF_TIMESTAMPING_RAW/SYS determine how they are reported in the
following control message:
struct scm_timestamping {
struct timespec systime;
struct timespec hwtimetrans;
struct timespec hwtimeraw;
};
struct scm_timestamping {
struct timespec systime;
struct timespec hwtimetrans;
struct timespec hwtimeraw;
};
recvmsg() can be used to get this control message for regular incoming
packets. For send time stamps the outgoing packet is looped back to
@ -87,12 +88,13 @@ by the network device and will be empty without that support.
SIOCSHWTSTAMP:
Hardware time stamping must also be initialized for each device driver
that is expected to do hardware time stamping. The parameter is:
that is expected to do hardware time stamping. The parameter is defined in
/include/linux/net_tstamp.h as:
struct hwtstamp_config {
int flags; /* no flags defined right now, must be zero */
int tx_type; /* HWTSTAMP_TX_* */
int rx_filter; /* HWTSTAMP_FILTER_* */
int flags; /* no flags defined right now, must be zero */
int tx_type; /* HWTSTAMP_TX_* */
int rx_filter; /* HWTSTAMP_FILTER_* */
};
Desired behavior is passed into the kernel and to a specific device by
@ -139,42 +141,56 @@ enum {
/* time stamp any incoming packet */
HWTSTAMP_FILTER_ALL,
/* return value: time stamp all packets requested plus some others */
HWTSTAMP_FILTER_SOME,
/* return value: time stamp all packets requested plus some others */
HWTSTAMP_FILTER_SOME,
/* PTP v1, UDP, any kind of event packet */
HWTSTAMP_FILTER_PTP_V1_L4_EVENT,
...
/* for the complete list of values, please check
* the include file /include/linux/net_tstamp.h
*/
};
DEVICE IMPLEMENTATION
A driver which supports hardware time stamping must support the
SIOCSHWTSTAMP ioctl. Time stamps for received packets must be stored
in the skb with skb_hwtstamp_set().
SIOCSHWTSTAMP ioctl and update the supplied struct hwtstamp_config with
the actual values as described in the section on SIOCSHWTSTAMP.
Time stamps for received packets must be stored in the skb. To get a pointer
to the shared time stamp structure of the skb call skb_hwtstamps(). Then
set the time stamps in the structure:
struct skb_shared_hwtstamps {
/* hardware time stamp transformed into duration
* since arbitrary point in time
*/
ktime_t hwtstamp;
ktime_t syststamp; /* hwtstamp transformed to system time base */
};
Time stamps for outgoing packets are to be generated as follows:
- In hard_start_xmit(), check if skb_hwtstamp_check_tx_hardware()
returns non-zero. If yes, then the driver is expected
to do hardware time stamping.
- In hard_start_xmit(), check if skb_tx(skb)->hardware is set no-zero.
If yes, then the driver is expected to do hardware time stamping.
- If this is possible for the skb and requested, then declare
that the driver is doing the time stamping by calling
skb_hwtstamp_tx_in_progress(). A driver not supporting
hardware time stamping doesn't do that. A driver must never
touch sk_buff::tstamp! It is used to store how time stamping
for an outgoing packets is to be done.
that the driver is doing the time stamping by setting the field
skb_tx(skb)->in_progress non-zero. You might want to keep a pointer
to the associated skb for the next step and not free the skb. A driver
not supporting hardware time stamping doesn't do that. A driver must
never touch sk_buff::tstamp! It is used to store software generated
time stamps by the network subsystem.
- As soon as the driver has sent the packet and/or obtained a
hardware time stamp for it, it passes the time stamp back by
calling skb_hwtstamp_tx() with the original skb, the raw
hardware time stamp and a handle to the device (necessary
to convert the hardware time stamp to system time). If obtaining
the hardware time stamp somehow fails, then the driver should
not fall back to software time stamping. The rationale is that
this would occur at a later time in the processing pipeline
than other software time stamping and therefore could lead
to unexpected deltas between time stamps.
- If the driver did not call skb_hwtstamp_tx_in_progress(), then
hardware time stamp. skb_hwtstamp_tx() clones the original skb and
adds the timestamps, therefore the original skb has to be freed now.
If obtaining the hardware time stamp somehow fails, then the driver
should not fall back to software time stamping. The rationale is that
this would occur at a later time in the processing pipeline than other
software time stamping and therefore could lead to unexpected deltas
between time stamps.
- If the driver did not call set skb_tx(skb)->in_progress, then
dev_hard_start_xmit() checks whether software time stamping
is wanted as fallback and potentially generates the time stamp.

9
Documentation/stable_kernel_rules.txt
View file

@ -18,16 +18,15 @@ Rules on what kind of patches are accepted, and which ones are not, into the
- It cannot contain any "trivial" fixes in it (spelling changes,
whitespace cleanups, etc).
- It must follow the Documentation/SubmittingPatches rules.
- It or an equivalent fix must already exist in Linus' tree. Quote the
respective commit ID in Linus' tree in your patch submission to -stable.
- It or an equivalent fix must already exist in Linus' tree (upstream).
Procedure for submitting patches to the -stable tree:
- Send the patch, after verifying that it follows the above rules, to
stable@kernel.org.
- To have the patch automatically included in the stable tree, add the
the tag
stable@kernel.org. You must note the upstream commit ID in the changelog
of your submission.
- To have the patch automatically included in the stable tree, add the tag
Cc: stable@kernel.org
in the sign-off area. Once the patch is merged it will be applied to
the stable tree without anything else needing to be done by the author

9
MAINTAINERS
View file

@ -485,8 +485,8 @@ S: Maintained
F: drivers/input/mouse/bcm5974.c
APPLE SMC DRIVER
M: Nicolas Boichat <nicolas@boichat.ch>
L: mactel-linux-devel@lists.sourceforge.net
M: Henrik Rydberg <rydberg@euromail.se>
L: lm-sensors@lm-sensors.org
S: Maintained
F: drivers/hwmon/applesmc.c
@ -1960,7 +1960,7 @@ F: lib/kobj*
DRM DRIVERS
M: David Airlie <airlied@linux.ie>
L: dri-devel@lists.sourceforge.net
L: dri-devel@lists.freedesktop.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
S: Maintained
F: drivers/gpu/drm/
@ -4791,12 +4791,11 @@ F: drivers/s390/crypto/
S390 ZFCP DRIVER
M: Christof Schmitt <christof.schmitt@de.ibm.com>
M: Martin Peschke <mp3@de.ibm.com>
M: Swen Schillig <swen@vnet.ibm.com>
M: linux390@de.ibm.com
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
F: Documentation/s390/zfcpdump.txt
F: drivers/s390/scsi/zfcp_*
S390 IUCV NETWORK LAYER

4
Makefile
View file

@ -1,8 +1,8 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 34
EXTRAVERSION = -rc4
NAME = Man-Eating Seals of Antiquity
EXTRAVERSION = -rc5
NAME = Sheep on Meth
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"

1
arch/arm/configs/n8x0_defconfig
View file

@ -1058,7 +1058,6 @@ CONFIG_JFFS2_CMODE_PRIORITY=y
# CONFIG_ROMFS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NILFS2_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set

2
arch/arm/configs/omap_zoom2_defconfig
View file

@ -661,7 +661,7 @@ CONFIG_DEVKMEM=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y

2
arch/arm/configs/omap_zoom3_defconfig
View file

@ -680,7 +680,7 @@ CONFIG_DEVKMEM=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y

3
arch/arm/configs/rx51_defconfig
View file

@ -59,8 +59,6 @@ CONFIG_FAIR_GROUP_SCHED=y
CONFIG_USER_SCHED=y
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUPS is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_RELAY is not set
# CONFIG_NAMESPACES is not set
CONFIG_BLK_DEV_INITRD=y
@ -480,7 +478,6 @@ CONFIG_BT_HIDP=m
# CONFIG_BT_HCIBFUSB is not set
# CONFIG_BT_HCIVHCI is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_PHONET is not set
CONFIG_WIRELESS=y
CONFIG_CFG80211=y
# CONFIG_CFG80211_REG_DEBUG is not set

15
arch/arm/include/asm/highmem.h
View file

@ -11,7 +11,11 @@
#define kmap_prot PAGE_KERNEL
#define flush_cache_kmaps() flush_cache_all()
#define flush_cache_kmaps() \
do { \
if (cache_is_vivt()) \
flush_cache_all(); \
} while (0)
extern pte_t *pkmap_page_table;
@ -21,11 +25,20 @@ extern void *kmap_high(struct page *page);
extern void *kmap_high_get(struct page *page);
extern void kunmap_high(struct page *page);
extern void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte);
extern void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte);
/*
* The following functions are already defined by <linux/highmem.h>
* when CONFIG_HIGHMEM is not set.
*/
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
extern void *kmap_atomic(struct page *page, enum km_type type);
extern void kunmap_atomic(void *kvaddr, enum km_type type);
extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
#endif

1
arch/arm/include/asm/kmap_types.h
View file

@ -18,6 +18,7 @@ enum km_type {
KM_IRQ1,
KM_SOFTIRQ0,
KM_SOFTIRQ1,
KM_L1_CACHE,
KM_L2_CACHE,
KM_TYPE_NR
};

23
arch/arm/include/asm/ucontext.h
View file

@ -59,23 +59,22 @@ struct iwmmxt_sigframe {
#endif /* CONFIG_IWMMXT */
#ifdef CONFIG_VFP
#if __LINUX_ARM_ARCH__ < 6
/* For ARM pre-v6, we use fstmiax and fldmiax. This adds one extra
* word after the registers, and a word of padding at the end for
* alignment. */
#define VFP_MAGIC 0x56465001
#define VFP_STORAGE_SIZE 152
#else
#define VFP_MAGIC 0x56465002
#define VFP_STORAGE_SIZE 144
#endif
struct vfp_sigframe
{
unsigned long magic;
unsigned long size;
union vfp_state storage;
};
struct user_vfp ufp;
struct user_vfp_exc ufp_exc;
} __attribute__((__aligned__(8)));
/*
* 8 byte for magic and size, 264 byte for ufp, 12 bytes for ufp_exc,
* 4 bytes padding.
*/
#define VFP_STORAGE_SIZE sizeof(struct vfp_sigframe)
#endif /* CONFIG_VFP */
/*
@ -91,7 +90,7 @@ struct aux_sigframe {
#ifdef CONFIG_IWMMXT
struct iwmmxt_sigframe iwmmxt;
#endif
#if 0 && defined CONFIG_VFP /* Not yet saved. */
#ifdef CONFIG_VFP
struct vfp_sigframe vfp;
#endif
/* Something that isn't a valid magic number for any coprocessor. */

12
arch/arm/include/asm/user.h
View file

@ -83,11 +83,21 @@ struct user{
/*
* User specific VFP registers. If only VFPv2 is present, registers 16 to 31
* are ignored by the ptrace system call.
* are ignored by the ptrace system call and the signal handler.
*/
struct user_vfp {
unsigned long long fpregs[32];
unsigned long fpscr;
};
/*
* VFP exception registers exposed to user space during signal delivery.
* Fields not relavant to the current VFP architecture are ignored.
*/
struct user_vfp_exc {
unsigned long fpexc;
unsigned long fpinst;
unsigned long fpinst2;
};
#endif /* _ARM_USER_H */

93
arch/arm/kernel/signal.c
View file

@ -18,6 +18,7 @@
#include <asm/cacheflush.h>
#include <asm/ucontext.h>
#include <asm/unistd.h>
#include <asm/vfp.h>
#include "ptrace.h"
#include "signal.h"
@ -175,6 +176,90 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
#endif
#ifdef CONFIG_VFP
static int preserve_vfp_context(struct vfp_sigframe __user *frame)
{
struct thread_info *thread = current_thread_info();
struct vfp_hard_struct *h = &thread->vfpstate.hard;
const unsigned long magic = VFP_MAGIC;
const unsigned long size = VFP_STORAGE_SIZE;
int err = 0;
vfp_sync_hwstate(thread);
__put_user_error(magic, &frame->magic, err);
__put_user_error(size, &frame->size, err);
/*
* Copy the floating point registers. There can be unused
* registers see asm/hwcap.h for details.
*/
err |= __copy_to_user(&frame->ufp.fpregs, &h->fpregs,
sizeof(h->fpregs));
/*
* Copy the status and control register.
*/
__put_user_error(h->fpscr, &frame->ufp.fpscr, err);
/*
* Copy the exception registers.
*/
__put_user_error(h->fpexc, &frame->ufp_exc.fpexc, err);
__put_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
__put_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
return err ? -EFAULT : 0;
}
static int restore_vfp_context(struct vfp_sigframe __user *frame)
{
struct thread_info *thread = current_thread_info();
struct vfp_hard_struct *h = &thread->vfpstate.hard;
unsigned long magic;
unsigned long size;
unsigned long fpexc;
int err = 0;
__get_user_error(magic, &frame->magic, err);
__get_user_error(size, &frame->size, err);
if (err)
return -EFAULT;
if (magic != VFP_MAGIC || size != VFP_STORAGE_SIZE)
return -EINVAL;
/*
* Copy the floating point registers. There can be unused
* registers see asm/hwcap.h for details.
*/
err |= __copy_from_user(&h->fpregs, &frame->ufp.fpregs,
sizeof(h->fpregs));
/*
* Copy the status and control register.
*/
__get_user_error(h->fpscr, &frame->ufp.fpscr, err);
/*
* Sanitise and restore the exception registers.
*/
__get_user_error(fpexc, &frame->ufp_exc.fpexc, err);
/* Ensure the VFP is enabled. */
fpexc |= FPEXC_EN;
/* Ensure FPINST2 is invalid and the exception flag is cleared. */
fpexc &= ~(FPEXC_EX | FPEXC_FP2V);
h->fpexc = fpexc;
__get_user_error(h->fpinst, &frame->ufp_exc.fpinst, err);
__get_user_error(h->fpinst2, &frame->ufp_exc.fpinst2, err);
if (!err)
vfp_flush_hwstate(thread);
return err ? -EFAULT : 0;
}
#endif
/*
* Do a signal return; undo the signal stack. These are aligned to 64-bit.
*/
@ -233,8 +318,8 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
err |= restore_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP
// if (err == 0)
// err |= vfp_restore_state(&sf->aux.vfp);
if (err == 0)
err |= restore_vfp_context(&aux->vfp);
#endif
return err;
@ -348,8 +433,8 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
err |= preserve_iwmmxt_context(&aux->iwmmxt);
#endif
#ifdef CONFIG_VFP
// if (err == 0)
// err |= vfp_save_state(&sf->aux.vfp);
if (err == 0)
err |= preserve_vfp_context(&aux->vfp);
#endif
__put_user_error(0, &aux->end_magic, err);

4
arch/arm/mach-at91/Makefile
View file

@ -16,8 +16,8 @@ obj-$(CONFIG_ARCH_AT91SAM9261) += at91sam9261.o at91sam926x_time.o at91sam9261_d
obj-$(CONFIG_ARCH_AT91SAM9G10) += at91sam9261.o at91sam926x_time.o at91sam9261_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G20) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G45) += at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G20) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91SAM9G45) += at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91CAP9) += at91cap9.o at91sam926x_time.o at91cap9_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT572D940HF) += at572d940hf.o at91sam926x_time.o at572d940hf_devices.o sam9_smc.o
obj-$(CONFIG_ARCH_AT91X40) += at91x40.o at91x40_time.o

4
arch/arm/mach-at91/pm_slowclock.S
View file

@ -175,8 +175,6 @@ ENTRY(at91_slow_clock)
orr r3, r3, #(1 << 29) /* bit 29 always set */
str r3, [r1, #(AT91_CKGR_PLLAR - AT91_PMC)]
wait_pllalock
/* Save PLLB setting and disable it */
ldr r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
str r3, .saved_pllbr
@ -184,8 +182,6 @@ ENTRY(at91_slow_clock)
mov r3, #AT91_PMC_PLLCOUNT
str r3, [r1, #(AT91_CKGR_PLLBR - AT91_PMC)]
wait_pllblock
/* Turn off the main oscillator */
ldr r3, [r1, #(AT91_CKGR_MOR - AT91_PMC)]
bic r3, r3, #AT91_PMC_MOSCEN

15
arch/arm/mach-omap1/timer32k.c
View file

@ -68,12 +68,6 @@ struct sys_timer omap_timer;
* ---------------------------------------------------------------------------
*/
#if defined(CONFIG_ARCH_OMAP16XX)
#define TIMER_32K_SYNCHRONIZED 0xfffbc410
#else
#error OMAP 32KHz timer does not currently work on 15XX!
#endif
/* 16xx specific defines */
#define OMAP1_32K_TIMER_BASE 0xfffb9000
#define OMAP1_32K_TIMER_CR 0x08
@ -150,15 +144,6 @@ static struct clock_event_device clockevent_32k_timer = {
.set_mode = omap_32k_timer_set_mode,
};
/*
* The 32KHz synchronized timer is an additional timer on 16xx.
* It is always running.
*/
static inline unsigned long omap_32k_sync_timer_read(void)
{
return omap_readl(TIMER_32K_SYNCHRONIZED);
}
static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
{
struct clock_event_device *evt = &clockevent_32k_timer;

6
arch/arm/mach-omap2/Kconfig
View file

@ -59,8 +59,10 @@ config MACH_OMAP3_BEAGLE
select OMAP_PACKAGE_CBB
config MACH_DEVKIT8000
bool "DEVKIT8000 board"
depends on ARCH_OMAP3
bool "DEVKIT8000 board"
depends on ARCH_OMAP3
select OMAP_PACKAGE_CUS
select OMAP_MUX
config MACH_OMAP_LDP
bool "OMAP3 LDP board"

1
arch/arm/mach-omap2/board-3630sdp.c
View file

@ -96,6 +96,7 @@ static struct omap_board_mux board_mux[] __initdata = {
static void __init omap_sdp_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
omap_serial_init();
zoom_peripherals_init();
board_smc91x_init();
enable_board_wakeup_source();

4
arch/arm/mach-omap2/board-am3517evm.c
View file

@ -294,9 +294,9 @@ static struct omap_board_mux board_mux[] __initdata = {
static void __init am3517_evm_init(void)
{
am3517_evm_i2c_init();
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
am3517_evm_i2c_init();
platform_add_devices(am3517_evm_devices,
ARRAY_SIZE(am3517_evm_devices));

39
arch/arm/mach-omap2/board-devkit8000.c
View file

@ -50,7 +50,6 @@
#include <linux/input/matrix_keypad.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/usb/otg.h>
#include <linux/dm9000.h>
#include <linux/interrupt.h>
@ -269,20 +268,6 @@ static int devkit8000_twl_gpio_setup(struct device *dev,
devkit8000_vmmc1_supply.dev = mmc[0].dev;
devkit8000_vsim_supply.dev = mmc[0].dev;
/* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
*/
gpio_request(gpio + 1, "EHCI_nOC");
gpio_direction_input(gpio + 1);
/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
return 0;
}
@ -303,7 +288,7 @@ static struct regulator_consumer_supply devkit8000_vpll2_supplies[] = {
.dev = &devkit8000_lcd_device.dev,
},
{
.supply = "vdss_dsi",
.supply = "vdds_dsi",
.dev = &devkit8000_dss_device.dev,
}
};
@ -639,17 +624,21 @@ static struct omap_musb_board_data musb_board_data = {
static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = true,
.reset_gpio_port[0] = -EINVAL,
.reset_gpio_port[1] = 147,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL
};
static void __init devkit8000_init(void)
{
omap_serial_init();
omap_dm9000_init();
devkit8000_i2c_init();
platform_add_devices(devkit8000_devices,
ARRAY_SIZE(devkit8000_devices));
@ -659,25 +648,15 @@ static void __init devkit8000_init(void)
spi_register_board_info(devkit8000_spi_board_info,
ARRAY_SIZE(devkit8000_spi_board_info));
omap_serial_init();
omap_dm9000_init();
devkit8000_ads7846_init();
omap_mux_init_gpio(170, OMAP_PIN_INPUT);
gpio_request(170, "DVI_nPD");
/* REVISIT leave DVI powered down until it's needed ... */
gpio_direction_output(170, true);
usb_musb_init(&musb_board_data);
usb_ehci_init(&ehci_pdata);
devkit8000_flash_init();
/* Ensure SDRC pins are mux'd for self-refresh */
omap_mux_init_signal("sdr_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdr_cke1", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
}
static void __init devkit8000_map_io(void)

8
arch/arm/mach-omap2/board-igep0020.c
View file

@ -458,13 +458,13 @@ static struct omap_musb_board_data musb_board_data = {
};
static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
.port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
.phy_reset = true,
.reset_gpio_port[0] = -EINVAL,
.reset_gpio_port[1] = IGEP2_GPIO_USBH_NRESET,
.reset_gpio_port[0] = IGEP2_GPIO_USBH_NRESET,
.reset_gpio_port[1] = -EINVAL,
.reset_gpio_port[2] = -EINVAL,
};

18
arch/arm/mach-omap2/board-n8x0.c
View file

@ -216,7 +216,7 @@ static void __init n8x0_onenand_init(void) {}
*/
#define N8X0_SLOT_SWITCH_GPIO 96
#define N810_EMMC_VSD_GPIO 23
#define NN810_EMMC_VIO_GPIO 9
#define N810_EMMC_VIO_GPIO 9
static int n8x0_mmc_switch_slot(struct device *dev, int slot)
{
@ -304,10 +304,10 @@ static void n810_set_power_emmc(struct device *dev,
if (power_on) {
gpio_set_value(N810_EMMC_VSD_GPIO, 1);
msleep(1);
gpio_set_value(NN810_EMMC_VIO_GPIO, 1);
gpio_set_value(N810_EMMC_VIO_GPIO, 1);
msleep(1);
} else {
gpio_set_value(NN810_EMMC_VIO_GPIO, 0);
gpio_set_value(N810_EMMC_VIO_GPIO, 0);
msleep(50);
gpio_set_value(N810_EMMC_VSD_GPIO, 0);
msleep(50);
@ -468,7 +468,7 @@ static void n8x0_mmc_cleanup(struct device *dev)
if (machine_is_nokia_n810()) {
gpio_free(N810_EMMC_VSD_GPIO);
gpio_free(NN810_EMMC_VIO_GPIO);
gpio_free(N810_EMMC_VIO_GPIO);
}
}
@ -529,7 +529,7 @@ void __init n8x0_mmc_init(void)
err = gpio_request(N8X0_SLOT_SWITCH_GPIO, "MMC slot switch");
if (err)
return err;
return;
gpio_direction_output(N8X0_SLOT_SWITCH_GPIO, 0);
@ -537,17 +537,17 @@ void __init n8x0_mmc_init(void)
err = gpio_request(N810_EMMC_VSD_GPIO, "MMC slot 2 Vddf");
if (err) {
gpio_free(N8X0_SLOT_SWITCH_GPIO);
return err;
return;
}
gpio_direction_output(N810_EMMC_VSD_GPIO, 0);
err = gpio_request(NN810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
err = gpio_request(N810_EMMC_VIO_GPIO, "MMC slot 2 Vdd");
if (err) {
gpio_free(N8X0_SLOT_SWITCH_GPIO);
gpio_free(N810_EMMC_VSD_GPIO);
return err;
return;
}
gpio_direction_output(NN810_EMMC_VIO_GPIO, 0);
gpio_direction_output(N810_EMMC_VIO_GPIO, 0);
}
mmc_data[0] = &mmc1_data;

8
arch/arm/mach-omap2/board-sdp-flash.c
View file

@ -253,20 +253,20 @@ void __init sdp_flash_init(struct flash_partitions sdp_partition_info[])
}
if (norcs > GPMC_CS_NUM)
printk(KERN_INFO "OneNAND: Unable to find configuration "
" in GPMC\n ");
printk(KERN_INFO "NOR: Unable to find configuration "
"in GPMC\n");
else
board_nor_init(sdp_partition_info[0], norcs);
if (onenandcs > GPMC_CS_NUM)
printk(KERN_INFO "OneNAND: Unable to find configuration "
" in GPMC\n ");
"in GPMC\n");
else
board_onenand_init(sdp_partition_info[1], onenandcs);
if (nandcs > GPMC_CS_NUM)
printk(KERN_INFO "NAND: Unable to find configuration "
" in GPMC\n ");
"in GPMC\n");
else
board_nand_init(sdp_partition_info[2], nandcs);
}

2
arch/arm/mach-omap2/board-zoom-debugboard.c
View file

@ -96,7 +96,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
static struct platform_device zoom_debugboard_serial_device = {
.name = "serial8250",
.id = 3,
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},

1
arch/arm/mach-omap2/board-zoom-peripherals.c
View file

@ -280,7 +280,6 @@ static void enable_board_wakeup_source(void)
void __init zoom_peripherals_init(void)
{
omap_i2c_init();
omap_serial_init();
usb_musb_init(&musb_board_data);
enable_board_wakeup_source();
}

2
arch/arm/mach-omap2/clock3xxx_data.c
View file

@ -895,7 +895,7 @@ static struct clk dpll4_m4x2_ck = {
.ops = &clkops_omap2_dflt_wait,
.parent = &dpll4_m4_ck,
.enable_reg = OMAP_CM_REGADDR(PLL_MOD, CM_CLKEN),
.enable_bit = OMAP3430_PWRDN_CAM_SHIFT,
.enable_bit = OMAP3430_PWRDN_DSS1_SHIFT,
.flags = INVERT_ENABLE,
.clkdm_name = "dpll4_clkdm",
.recalc = &omap3_clkoutx2_recalc,

8
arch/arm/mach-omap2/clock44xx_data.c
View file

@ -2671,10 +2671,10 @@ static struct omap_clk omap44xx_clks[] = {
CLK("omap-mcbsp.2", "ick", &dummy_ck, CK_443X),
CLK("omap-mcbsp.3", "ick", &dummy_ck, CK_443X),
CLK("omap-mcbsp.4", "ick", &dummy_ck, CK_443X),
CLK("omap-mcspi.1", "ick", &dummy_ck, CK_443X),
CLK("omap-mcspi.2", "ick", &dummy_ck, CK_443X),
CLK("omap-mcspi.3", "ick", &dummy_ck, CK_443X),
CLK("omap-mcspi.4", "ick", &dummy_ck, CK_443X),
CLK("omap2_mcspi.1", "ick", &dummy_ck, CK_443X),
CLK("omap2_mcspi.2", "ick", &dummy_ck, CK_443X),
CLK("omap2_mcspi.3", "ick", &dummy_ck, CK_443X),
CLK("omap2_mcspi.4", "ick", &dummy_ck, CK_443X),
CLK(NULL, "uart1_ick", &dummy_ck, CK_443X),
CLK(NULL, "uart2_ick", &dummy_ck, CK_443X),
CLK(NULL, "uart3_ick", &dummy_ck, CK_443X),

6
arch/arm/mach-omap2/clockdomain.c
View file

@ -240,7 +240,7 @@ static void _omap2_clkdm_set_hwsup(struct clockdomain *clkdm, int enable)
bits = OMAP24XX_CLKSTCTRL_ENABLE_AUTO;
else
bits = OMAP24XX_CLKSTCTRL_DISABLE_AUTO;
} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
if (enable)
bits = OMAP34XX_CLKSTCTRL_ENABLE_AUTO;
else
@ -812,7 +812,7 @@ int omap2_clkdm_sleep(struct clockdomain *clkdm)
cm_set_mod_reg_bits(OMAP24XX_FORCESTATE,
clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_SLEEP <<
__ffs(clkdm->clktrctrl_mask));
@ -856,7 +856,7 @@ int omap2_clkdm_wakeup(struct clockdomain *clkdm)
cm_clear_mod_reg_bits(OMAP24XX_FORCESTATE,
clkdm->pwrdm.ptr->prcm_offs, OMAP2_PM_PWSTCTRL);
} else if (cpu_is_omap34xx() | cpu_is_omap44xx()) {
} else if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
u32 bits = (OMAP34XX_CLKSTCTRL_FORCE_WAKEUP <<
__ffs(clkdm->clktrctrl_mask));

2
arch/arm/mach-omap2/devices.c
View file

@ -726,7 +726,7 @@ void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
if (!cpu_is_omap44xx())
return;
base = OMAP4_MMC5_BASE + OMAP4_MMC_REG_OFFSET;
irq = OMAP44XX_IRQ_MMC4;
irq = OMAP44XX_IRQ_MMC5;
break;
default:
continue;

3
arch/arm/mach-omap2/gpmc-nand.c
View file

@ -39,6 +39,9 @@ static int omap2_nand_gpmc_retime(void)
struct gpmc_timings t;
int err;
if (!gpmc_nand_data->gpmc_t)
return 0;
memset(&t, 0, sizeof(t));
t.sync_clk = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->sync_clk);
t.cs_on = gpmc_round_ns_to_ticks(gpmc_nand_data->gpmc_t->cs_on);

2
arch/arm/mach-omap2/include/mach/entry-macro.S
View file

@ -52,7 +52,7 @@ omap_irq_base: .word 0
mrc p15, 0, \tmp, c0, c0, 0 @ get processor revision
and \tmp, \tmp, #0x000f0000 @ only check architecture
cmp \tmp, #0x00060000 @ is v6?
cmp \tmp, #0x00070000 @ is v6?
beq 2400f @ found v6 so it's omap24xx
mrc p15, 0, \tmp, c0, c0, 0 @ get processor revision
and \tmp, \tmp, #0x000000f0 @ check cortex 8 or 9

6
arch/arm/mach-omap2/omap-headsmp.S
View file

@ -33,7 +33,7 @@
ENTRY(omap_secondary_startup)
hold: ldr r12,=0x103
dsb
smc @ read from AuxCoreBoot0
smc #0 @ read from AuxCoreBoot0
mov r0, r0, lsr #9
mrc p15, 0, r4, c0, c0, 5
and r4, r4, #0x0f
@ -52,7 +52,7 @@ ENTRY(omap_modify_auxcoreboot0)
stmfd sp!, {r1-r12, lr}
ldr r12, =0x104
dsb
smc
smc #0
ldmfd sp!, {r1-r12, pc}
END(omap_modify_auxcoreboot0)
@ -60,6 +60,6 @@ ENTRY(omap_auxcoreboot_addr)
stmfd sp!, {r2-r12, lr}
ldr r12, =0x105
dsb
smc
smc #0
ldmfd sp!, {r2-r12, pc}
END(omap_auxcoreboot_addr)

2
arch/arm/mach-omap2/omap44xx-smc.S
View file

@ -27,6 +27,6 @@ ENTRY(omap_smc1)
mov r12, r0
mov r0, r1
dsb
smc
smc #0
ldmfd sp!, {r2-r12, pc}
END(omap_smc1)

3
arch/arm/mach-omap2/omap_hwmod.c
View file

@ -1511,6 +1511,9 @@ struct powerdomain *omap_hwmod_get_pwrdm(struct omap_hwmod *oh)
c = oh->slaves[oh->_mpu_port_index]->_clk;
}
if (!c->clkdm)
return NULL;
return c->clkdm->pwrdm.ptr;
}

2
arch/arm/mach-omap2/powerdomain.c
View file

@ -222,7 +222,7 @@ void pwrdm_init(struct powerdomain **pwrdm_list)
{
struct powerdomain **p = NULL;
if (cpu_is_omap24xx() | cpu_is_omap34xx()) {
if (cpu_is_omap24xx() || cpu_is_omap34xx()) {
pwrstctrl_reg_offs = OMAP2_PM_PWSTCTRL;
pwrstst_reg_offs = OMAP2_PM_PWSTST;
} else if (cpu_is_omap44xx()) {

4
arch/arm/mach-omap2/prcm.c
View file

@ -123,7 +123,7 @@ struct omap3_prcm_regs prcm_context;
u32 omap_prcm_get_reset_sources(void)
{
/* XXX This presumably needs modification for 34XX */
if (cpu_is_omap24xx() | cpu_is_omap34xx())
if (cpu_is_omap24xx() || cpu_is_omap34xx())
return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
if (cpu_is_omap44xx())
return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
@ -157,7 +157,7 @@ void omap_prcm_arch_reset(char mode, const char *cmd)
else
WARN_ON(1);
if (cpu_is_omap24xx() | cpu_is_omap34xx())
if (cpu_is_omap24xx() || cpu_is_omap34xx())
prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
OMAP2_RM_RSTCTRL);
if (cpu_is_omap44xx())

35
arch/arm/mach-omap2/serial.c
View file

@ -115,7 +115,6 @@ static struct plat_serial8250_port serial_platform_data2[] = {
}
};
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
static struct plat_serial8250_port serial_platform_data3[] = {
{
.irq = 70,
@ -128,23 +127,12 @@ static struct plat_serial8250_port serial_platform_data3[] = {
}
};
static inline void omap2_set_globals_uart4(struct omap_globals *omap2_globals)
{
serial_platform_data3[0].mapbase = omap2_globals->uart4_phys;
}
#else
static inline void omap2_set_globals_uart4(struct omap_globals *omap2_globals)
{
}
#endif
void __init omap2_set_globals_uart(struct omap_globals *omap2_globals)
{
serial_platform_data0[0].mapbase = omap2_globals->uart1_phys;
serial_platform_data1[0].mapbase = omap2_globals->uart2_phys;
serial_platform_data2[0].mapbase = omap2_globals->uart3_phys;
if (cpu_is_omap3630() || cpu_is_omap44xx())
omap2_set_globals_uart4(omap2_globals);
serial_platform_data3[0].mapbase = omap2_globals->uart4_phys;
}
static inline unsigned int __serial_read_reg(struct uart_port *up,
@ -550,7 +538,7 @@ static ssize_t sleep_timeout_store(struct device *dev,
unsigned int value;
if (sscanf(buf, "%u", &value) != 1) {
printk(KERN_ERR "sleep_timeout_store: Invalid value\n");
dev_err(dev, "sleep_timeout_store: Invalid value\n");
return -EINVAL;
}
@ -664,27 +652,33 @@ void __init omap_serial_early_init(void)
struct device *dev = &pdev->dev;
struct plat_serial8250_port *p = dev->platform_data;
/* Don't map zero-based physical address */
if (p->mapbase == 0) {
dev_warn(dev, "no physical address for uart#%d,"
" so skipping early_init...\n", i);
continue;
}
/*
* Module 4KB + L4 interconnect 4KB
* Static mapping, never released
*/
p->membase = ioremap(p->mapbase, SZ_8K);
if (!p->membase) {
printk(KERN_ERR "ioremap failed for uart%i\n", i + 1);
dev_err(dev, "ioremap failed for uart%i\n", i + 1);
continue;
}
sprintf(name, "uart%d_ick", i + 1);
uart->ick = clk_get(NULL, name);
if (IS_ERR(uart->ick)) {
printk(KERN_ERR "Could not get uart%d_ick\n", i + 1);
dev_err(dev, "Could not get uart%d_ick\n", i + 1);
uart->ick = NULL;
}
sprintf(name, "uart%d_fck", i+1);
uart->fck = clk_get(NULL, name);
if (IS_ERR(uart->fck)) {
printk(KERN_ERR "Could not get uart%d_fck\n", i + 1);
dev_err(dev, "Could not get uart%d_fck\n", i + 1);
uart->fck = NULL;
}
@ -727,6 +721,13 @@ void __init omap_serial_init_port(int port)
pdev = &uart->pdev;
dev = &pdev->dev;
/* Don't proceed if there's no clocks available */
if (unlikely(!uart->ick || !uart->fck)) {
WARN(1, "%s: can't init uart%d, no clocks available\n",
kobject_name(&dev->kobj), port);
return;
}
omap_uart_enable_clocks(uart);
omap_uart_reset(uart);

9
arch/arm/mm/copypage-v6.c
View file

@ -41,14 +41,7 @@ static void v6_copy_user_highpage_nonaliasing(struct page *to,
kfrom = kmap_atomic(from, KM_USER0);
kto = kmap_atomic(to, KM_USER1);
copy_page(kto, kfrom);
#ifdef CONFIG_HIGHMEM
/*
* kmap_atomic() doesn't set the page virtual address, and
* kunmap_atomic() takes care of cache flushing already.
*/
if (page_address(to) != NULL)
#endif
__cpuc_flush_dcache_area(kto, PAGE_SIZE);
__cpuc_flush_dcache_area(kto, PAGE_SIZE);
kunmap_atomic(kto, KM_USER1);
kunmap_atomic(kfrom, KM_USER0);
}

5
arch/arm/mm/dma-mapping.c
View file

@ -464,6 +464,11 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
vaddr += offset;
op(vaddr, len, dir);
kunmap_high(page);
} else if (cache_is_vipt()) {
pte_t saved_pte;
vaddr = kmap_high_l1_vipt(page, &saved_pte);
op(vaddr + offset, len, dir);
kunmap_high_l1_vipt(page, saved_pte);
}
} else {
vaddr = page_address(page) + offset;

25
arch/arm/mm/flush.c
View file

@ -13,6 +13,7 @@
#include <asm/cacheflush.h>
#include <asm/cachetype.h>
#include <asm/highmem.h>
#include <asm/smp_plat.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
@ -152,21 +153,25 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
void __flush_dcache_page(struct address_space *mapping, struct page *page)
{
void *addr = page_address(page);
/*
* Writeback any data associated with the kernel mapping of this
* page. This ensures that data in the physical page is mutually
* coherent with the kernels mapping.
*/
#ifdef CONFIG_HIGHMEM
/*
* kmap_atomic() doesn't set the page virtual address, and
* kunmap_atomic() takes care of cache flushing already.
*/
if (addr)
#endif
__cpuc_flush_dcache_area(addr, PAGE_SIZE);
if (!PageHighMem(page)) {
__cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);
} else {
void *addr = kmap_high_get(page);
if (addr) {
__cpuc_flush_dcache_area(addr, PAGE_SIZE);
kunmap_high(page);
} else if (cache_is_vipt()) {
pte_t saved_pte;
addr = kmap_high_l1_vipt(page, &saved_pte);
__cpuc_flush_dcache_area(addr, PAGE_SIZE);
kunmap_high_l1_vipt(page, saved_pte);
}
}
/*
* If this is a page cache page, and we have an aliasing VIPT cache,

87
arch/arm/mm/highmem.c
View file

@ -79,7 +79,8 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
if (kvaddr >= (void *)FIXADDR_START) {
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
if (cache_is_vivt())
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
#ifdef CONFIG_DEBUG_HIGHMEM
BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
set_pte_ext(TOP_PTE(vaddr), __pte(0), 0);
@ -124,3 +125,87 @@ struct page *kmap_atomic_to_page(const void *ptr)
pte = TOP_PTE(vaddr);
return pte_page(*pte);
}
#ifdef CONFIG_CPU_CACHE_VIPT
#include <linux/percpu.h>
/*
* The VIVT cache of a highmem page is always flushed before the page
* is unmapped. Hence unmapped highmem pages need no cache maintenance
* in that case.
*
* However unmapped pages may still be cached with a VIPT cache, and
* it is not possible to perform cache maintenance on them using physical
* addresses unfortunately. So we have no choice but to set up a temporary
* virtual mapping for that purpose.
*
* Yet this VIPT cache maintenance may be triggered from DMA support
* functions which are possibly called from interrupt context. As we don't
* want to keep interrupt disabled all the time when such maintenance is
* taking place, we therefore allow for some reentrancy by preserving and
* restoring the previous fixmap entry before the interrupted context is
* resumed. If the reentrancy depth is 0 then there is no need to restore
* the previous fixmap, and leaving the current one in place allow it to
* be reused the next time without a TLB flush (common with DMA).
*/
static DEFINE_PER_CPU(int, kmap_high_l1_vipt_depth);
void *kmap_high_l1_vipt(struct page *page, pte_t *saved_pte)
{
unsigned int idx, cpu = smp_processor_id();
int *depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
unsigned long vaddr, flags;
pte_t pte, *ptep;
idx = KM_L1_CACHE + KM_TYPE_NR * cpu;
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
ptep = TOP_PTE(vaddr);
pte = mk_pte(page, kmap_prot);
if (!in_interrupt())
preempt_disable();
raw_local_irq_save(flags);
(*depth)++;
if (pte_val(*ptep) == pte_val(pte)) {
*saved_pte = pte;
} else {
*saved_pte = *ptep;
set_pte_ext(ptep, pte, 0);
local_flush_tlb_kernel_page(vaddr);
}
raw_local_irq_restore(flags);
return (void *)vaddr;
}
void kunmap_high_l1_vipt(struct page *page, pte_t saved_pte)
{
unsigned int idx, cpu = smp_processor_id();
int *depth = &per_cpu(kmap_high_l1_vipt_depth, cpu);
unsigned long vaddr, flags;
pte_t pte, *ptep;
idx = KM_L1_CACHE + KM_TYPE_NR * cpu;
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
ptep = TOP_PTE(vaddr);
pte = mk_pte(page, kmap_prot);
BUG_ON(pte_val(*ptep) != pte_val(pte));
BUG_ON(*depth <= 0);
raw_local_irq_save(flags);
(*depth)--;
if (*depth != 0 && pte_val(pte) != pte_val(saved_pte)) {
set_pte_ext(ptep, saved_pte, 0);
local_flush_tlb_kernel_page(vaddr);
}
raw_local_irq_restore(flags);
if (!in_interrupt())
preempt_enable();
}
#endif /* CONFIG_CPU_CACHE_VIPT */

10
arch/arm/mm/mmu.c
View file

@ -1054,10 +1054,12 @@ void setup_mm_for_reboot(char mode)
pgd_t *pgd;
int i;
if (current->mm && current->mm->pgd)
pgd = current->mm->pgd;
else
pgd = init_mm.pgd;
/*
* We need to access to user-mode page tables here. For kernel threads
* we don't have any user-mode mappings so we use the context that we
* "borrowed".
*/
pgd = current->active_mm->pgd;
base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT;
if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale())

22
arch/arm/plat-omap/common.c
View file

@ -44,9 +44,6 @@
#define NO_LENGTH_CHECK 0xffffffff
unsigned char omap_bootloader_tag[512];
int omap_bootloader_tag_len;
struct omap_board_config_kernel *omap_board_config;
int omap_board_config_size;
@ -100,10 +97,17 @@ EXPORT_SYMBOL(omap_get_var_config);
#include <linux/clocksource.h>
/*
* offset_32k holds the init time counter value. It is then subtracted
* from every counter read to achieve a counter that counts time from the
* kernel boot (needed for sched_clock()).
*/
static u32 offset_32k __read_mostly;
#ifdef CONFIG_ARCH_OMAP16XX
static cycle_t omap16xx_32k_read(struct clocksource *cs)
{
return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED);
return omap_readl(OMAP16XX_TIMER_32K_SYNCHRONIZED) - offset_32k;
}
#else
#define omap16xx_32k_read NULL
@ -112,7 +116,7 @@ static cycle_t omap16xx_32k_read(struct clocksource *cs)
#ifdef CONFIG_ARCH_OMAP2420
static cycle_t omap2420_32k_read(struct clocksource *cs)
{
return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10);
return omap_readl(OMAP2420_32KSYNCT_BASE + 0x10) - offset_32k;
}
#else
#define omap2420_32k_read NULL
@ -121,7 +125,7 @@ static cycle_t omap2420_32k_read(struct clocksource *cs)
#ifdef CONFIG_ARCH_OMAP2430
static cycle_t omap2430_32k_read(struct clocksource *cs)
{
return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10);
return omap_readl(OMAP2430_32KSYNCT_BASE + 0x10) - offset_32k;
}
#else
#define omap2430_32k_read NULL
@ -130,7 +134,7 @@ static cycle_t omap2430_32k_read(struct clocksource *cs)
#ifdef CONFIG_ARCH_OMAP3
static cycle_t omap34xx_32k_read(struct clocksource *cs)
{
return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10);
return omap_readl(OMAP3430_32KSYNCT_BASE + 0x10) - offset_32k;
}
#else
#define omap34xx_32k_read NULL
@ -139,7 +143,7 @@ static cycle_t omap34xx_32k_read(struct clocksource *cs)
#ifdef CONFIG_ARCH_OMAP4
static cycle_t omap44xx_32k_read(struct clocksource *cs)
{
return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10);
return omap_readl(OMAP4430_32KSYNCT_BASE + 0x10) - offset_32k;
}
#else
#define omap44xx_32k_read NULL
@ -227,6 +231,8 @@ static int __init omap_init_clocksource_32k(void)
clocksource_32k.mult = clocksource_hz2mult(32768,
clocksource_32k.shift);
offset_32k = clocksource_32k.read(&clocksource_32k);
if (clocksource_register(&clocksource_32k))
printk(err, clocksource_32k.name);
}

9
arch/arm/plat-omap/dma.c
View file

@ -937,6 +937,15 @@ void omap_start_dma(int lch)
{
u32 l;
/*
* The CPC/CDAC register needs to be initialized to zero
* before starting dma transfer.
*/
if (cpu_is_omap15xx())
dma_write(0, CPC(lch));
else
dma_write(0, CDAC(lch));
if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
int next_lch, cur_lch;
char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT];

6
arch/arm/plat-omap/gpio.c
View file

@ -798,7 +798,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
case METHOD_MPUIO:
reg += OMAP_MPUIO_GPIO_INT_EDGE;
l = __raw_readl(reg);
if (trigger & IRQ_TYPE_EDGE_BOTH)
if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
bank->toggle_mask |= 1 << gpio;
if (trigger & IRQ_TYPE_EDGE_RISING)
l |= 1 << gpio;
@ -812,7 +812,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_INT_CONTROL;
l = __raw_readl(reg);
if (trigger & IRQ_TYPE_EDGE_BOTH)
if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
bank->toggle_mask |= 1 << gpio;
if (trigger & IRQ_TYPE_EDGE_RISING)
l |= 1 << gpio;
@ -846,7 +846,7 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
case METHOD_GPIO_7XX:
reg += OMAP7XX_GPIO_INT_CONTROL;
l = __raw_readl(reg);
if (trigger & IRQ_TYPE_EDGE_BOTH)
if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH)
bank->toggle_mask |= 1 << gpio;
if (trigger & IRQ_TYPE_EDGE_RISING)
l |= 1 << gpio;

2
arch/arm/plat-omap/include/plat/irqs.h
View file

@ -345,8 +345,6 @@
#define INT_34XX_MMC3_IRQ 94
#define INT_34XX_GPT12_IRQ 95
#define INT_34XX_BENCH_MPU_EMUL 3
#define INT_35XX_HECC0_IRQ 24
#define INT_35XX_HECC1_IRQ 28
#define INT_35XX_EMAC_C0_RXTHRESH_IRQ 67

2
arch/arm/plat-omap/include/plat/mcbsp.h
View file

@ -59,7 +59,7 @@
#define OMAP44XX_MCBSP1_BASE 0x49022000
#define OMAP44XX_MCBSP2_BASE 0x49024000
#define OMAP44XX_MCBSP3_BASE 0x49026000
#define OMAP44XX_MCBSP4_BASE 0x48074000
#define OMAP44XX_MCBSP4_BASE 0x48096000
#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)

7
arch/arm/plat-omap/include/plat/nand.h
View file

@ -29,4 +29,11 @@ struct omap_nand_platform_data {
/* size (4 KiB) for IO mapping */
#define NAND_IO_SIZE SZ_4K
#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
extern int gpmc_nand_init(struct omap_nand_platform_data *d);
#else
static inline int gpmc_nand_init(struct omap_nand_platform_data *d)
{
return 0;
}
#endif

2
arch/arm/plat-omap/include/plat/omap44xx.h
View file

@ -32,7 +32,7 @@
#define OMAP4430_PRM_BASE 0x4a306000
#define OMAP44XX_GPMC_BASE 0x50000000
#define OMAP443X_SCM_BASE 0x4a002000
#define OMAP443X_CTRL_BASE OMAP443X_SCM_BASE
#define OMAP443X_CTRL_BASE 0x4a100000
#define OMAP44XX_IC_BASE 0x48200000
#define OMAP44XX_IVA_INTC_BASE 0x40000000
#define IRQ_SIR_IRQ 0x0040

2
arch/arm/plat-omap/include/plat/omap_hwmod.h
View file

@ -294,8 +294,8 @@ struct omap_hwmod_class_sysconfig {
u16 rev_offs;
u16 sysc_offs;
u16 syss_offs;
u16 sysc_flags;
u8 idlemodes;
u8 sysc_flags;
u8 clockact;
struct omap_hwmod_sysc_fields *sysc_fields;
};

31
arch/arm/vfp/vfpmodule.c
View file

@ -428,26 +428,6 @@ static void vfp_pm_init(void)
static inline void vfp_pm_init(void) { }
#endif /* CONFIG_PM */
/*
* Synchronise the hardware VFP state of a thread other than current with the
* saved one. This function is used by the ptrace mechanism.
*/
#ifdef CONFIG_SMP
void vfp_sync_hwstate(struct thread_info *thread)
{
}
void vfp_flush_hwstate(struct thread_info *thread)
{
/*
* On SMP systems, the VFP state is automatically saved at every
* context switch. We mark the thread VFP state as belonging to a
* non-existent CPU so that the saved one will be reloaded when
* needed.
*/
thread->vfpstate.hard.cpu = NR_CPUS;
}
#else
void vfp_sync_hwstate(struct thread_info *thread)
{
unsigned int cpu = get_cpu();
@ -490,9 +470,18 @@ void vfp_flush_hwstate(struct thread_info *thread)
last_VFP_context[cpu] = NULL;
}
#ifdef CONFIG_SMP
/*
* For SMP we still have to take care of the case where the thread
* migrates to another CPU and then back to the original CPU on which
* the last VFP user is still the same thread. Mark the thread VFP
* state as belonging to a non-existent CPU so that the saved one will
* be reloaded in the above case.
*/
thread->vfpstate.hard.cpu = NR_CPUS;
#endif
put_cpu();
}
#endif
#include <linux/smp.h>

2
arch/avr32/kernel/ptrace.c
View file

@ -28,7 +28,7 @@ static struct pt_regs *get_user_regs(struct task_struct *tsk)
THREAD_SIZE - sizeof(struct pt_regs));
}
static void user_enable_single_step(struct task_struct *tsk)
void user_enable_single_step(struct task_struct *tsk)
{
pr_debug("user_enable_single_step: pid=%u, PC=0x%08lx, SR=0x%08lx\n",
tsk->pid, task_pt_regs(tsk)->pc, task_pt_regs(tsk)->sr);

9
arch/ia64/kvm/kvm-ia64.c
View file

@ -1802,7 +1802,8 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm,
{
struct kvm_memory_slot *memslot;
int r, i;
long n, base;
long base;
unsigned long n;
unsigned long *dirty_bitmap = (unsigned long *)(kvm->arch.vm_base +
offsetof(struct kvm_vm_data, kvm_mem_dirty_log));
@ -1815,7 +1816,7 @@ static int kvm_ia64_sync_dirty_log(struct kvm *kvm,
if (!memslot->dirty_bitmap)
goto out;
n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
n = kvm_dirty_bitmap_bytes(memslot);
base = memslot->base_gfn / BITS_PER_LONG;
for (i = 0; i < n/sizeof(long); ++i) {
@ -1831,7 +1832,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
struct kvm_dirty_log *log)
{
int r;
int n;
unsigned long n;
struct kvm_memory_slot *memslot;
int is_dirty = 0;
@ -1850,7 +1851,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
if (is_dirty) {
kvm_flush_remote_tlbs(kvm);
memslot = &kvm->memslots->memslots[log->slot];
n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
n = kvm_dirty_bitmap_bytes(memslot);
memset(memslot->dirty_bitmap, 0, n);
}
r = 0;

8
arch/m68k/include/asm/atomic_mm.h
View file

@ -148,14 +148,18 @@ static inline int atomic_xchg(atomic_t *v, int new)
static inline int atomic_sub_and_test(int i, atomic_t *v)
{
char c;
__asm__ __volatile__("subl %2,%1; seq %0" : "=d" (c), "+m" (*v): "g" (i));
__asm__ __volatile__("subl %2,%1; seq %0"
: "=d" (c), "+m" (*v)
: "id" (i));
return c != 0;
}
static inline int atomic_add_negative(int i, atomic_t *v)
{
char c;
__asm__ __volatile__("addl %2,%1; smi %0" : "=d" (c), "+m" (*v): "g" (i));
__asm__ __volatile__("addl %2,%1; smi %0"
: "=d" (c), "+m" (*v)
: "id" (i));
return c != 0;
}

5
arch/m68k/include/asm/mcfuart.h
View file

@ -212,5 +212,10 @@ struct mcf_platform_uart {
#define MCFUART_URF_RXS 0xc0 /* Receiver status */
#endif
#if defined(CONFIG_M5272)
#define MCFUART_TXFIFOSIZE 25
#else
#define MCFUART_TXFIFOSIZE 1
#endif
/****************************************************************************/
#endif /* mcfuart_h */

4
arch/m68k/include/asm/sigcontext.h
View file

@ -17,13 +17,11 @@ struct sigcontext {
#ifndef __uClinux__
# ifdef __mcoldfire__
unsigned long sc_fpregs[2][2]; /* room for two fp registers */
unsigned long sc_fpcntl[3];
unsigned char sc_fpstate[16+6*8];
# else
unsigned long sc_fpregs[2*3]; /* room for two fp registers */
# endif
unsigned long sc_fpcntl[3];
unsigned char sc_fpstate[216];
# endif
#endif
};

2
arch/m68knommu/Makefile
View file

@ -94,7 +94,7 @@ cflags-$(CONFIG_M520x) := $(call cc-option,-mcpu=5208,-m5200)
cflags-$(CONFIG_M523x) := $(call cc-option,-mcpu=523x,-m5307)
cflags-$(CONFIG_M5249) := $(call cc-option,-mcpu=5249,-m5200)
cflags-$(CONFIG_M5271) := $(call cc-option,-mcpu=5271,-m5307)
cflags-$(CONFIG_M5272) := $(call cc-option,-mcpu=5271,-m5200)
cflags-$(CONFIG_M5272) := $(call cc-option,-mcpu=5272,-m5307)
cflags-$(CONFIG_M5275) := $(call cc-option,-mcpu=5275,-m5307)
cflags-$(CONFIG_M528x) := $(call cc-option,-m528x,-m5307)
cflags-$(CONFIG_M5307) := $(call cc-option,-m5307,-m5200)

2
arch/m68knommu/kernel/entry.S
View file

@ -145,6 +145,6 @@ ENTRY(ret_from_user_signal)
trap #0
ENTRY(ret_from_user_rt_signal)
move #__NR_rt_sigreturn,%d0
movel #__NR_rt_sigreturn,%d0
trap #0

1
arch/m68knommu/platform/68360/ints.c
View file

@ -107,7 +107,6 @@ void init_IRQ(void)
_ramvec[vba+CPMVEC_PIO_PC7] = inthandler; /* pio - pc7 */
_ramvec[vba+CPMVEC_PIO_PC6] = inthandler; /* pio - pc6 */
_ramvec[vba+CPMVEC_TIMER3] = inthandler; /* timer 3 */
_ramvec[vba+CPMVEC_RISCTIMER] = inthandler; /* reserved */
_ramvec[vba+CPMVEC_PIO_PC5] = inthandler; /* pio - pc5 */
_ramvec[vba+CPMVEC_PIO_PC4] = inthandler; /* pio - pc4 */
_ramvec[vba+CPMVEC_RESERVED2] = inthandler; /* reserved */

5
arch/powerpc/kvm/book3s.c
View file

@ -1004,7 +1004,8 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
struct kvm_vcpu *vcpu;
ulong ga, ga_end;
int is_dirty = 0;
int r, n;
int r;
unsigned long n;
mutex_lock(&kvm->slots_lock);
@ -1022,7 +1023,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
kvm_for_each_vcpu(n, vcpu, kvm)
kvmppc_mmu_pte_pflush(vcpu, ga, ga_end);
n = ALIGN(memslot->npages, BITS_PER_LONG) / 8;
n = kvm_dirty_bitmap_bytes(memslot);
memset(memslot->dirty_bitmap, 0, n);
}

1
arch/s390/include/asm/vdso.h
View file

@ -29,6 +29,7 @@ struct vdso_data {
__u32 tz_minuteswest; /* Minutes west of Greenwich 0x30 */
__u32 tz_dsttime; /* Type of dst correction 0x34 */
__u32 ectg_available;
__u32 ntp_mult; /* NTP adjusted multiplier 0x3C */
};
struct vdso_per_cpu_data {

1
arch/s390/kernel/asm-offsets.c
View file

@ -61,6 +61,7 @@ int main(void)
DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
DEFINE(__VDSO_NTP_MULT, offsetof(struct vdso_data, ntp_mult));
DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
/* constants used by the vdso */

3
arch/s390/kernel/swsusp_asm64.S
View file

@ -256,6 +256,9 @@ restore_registers:
lghi %r2,0
brasl %r14,arch_set_page_states
/* Reinitialize the channel subsystem */
brasl %r14,channel_subsystem_reinit
/* Return 0 */
lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
lghi %r2,0

1
arch/s390/kernel/time.c
View file

@ -221,6 +221,7 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
vdso_data->xtime_clock_nsec = wall_time->tv_nsec;
vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
vdso_data->ntp_mult = mult;
smp_wmb();
++vdso_data->tb_update_count;
}

12
arch/s390/kernel/vdso32/clock_gettime.S
View file

@ -38,13 +38,13 @@ __kernel_clock_gettime:
sl %r1,__VDSO_XTIME_STAMP+4(%r5)
brc 3,2f
ahi %r0,-1
2: mhi %r0,1000 /* cyc2ns(clock,cycle_delta) */
2: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */
lr %r2,%r0
lhi %r0,1000
l %r0,__VDSO_NTP_MULT(%r5)
ltr %r1,%r1
mr %r0,%r0
jnm 3f
ahi %r0,1000
a %r0,__VDSO_NTP_MULT(%r5)
3: alr %r0,%r2
srdl %r0,12
al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */
@ -86,13 +86,13 @@ __kernel_clock_gettime:
sl %r1,__VDSO_XTIME_STAMP+4(%r5)
brc 3,12f
ahi %r0,-1
12: mhi %r0,1000 /* cyc2ns(clock,cycle_delta) */
12: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */
lr %r2,%r0
lhi %r0,1000
l %r0,__VDSO_NTP_MULT(%r5)
ltr %r1,%r1
mr %r0,%r0
jnm 13f
ahi %r0,1000
a %r0,__VDSO_NTP_MULT(%r5)
13: alr %r0,%r2
srdl %r0,12
al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */

6
arch/s390/kernel/vdso32/gettimeofday.S
View file

@ -35,13 +35,13 @@ __kernel_gettimeofday:
sl %r1,__VDSO_XTIME_STAMP+4(%r5)
brc 3,3f
ahi %r0,-1
3: mhi %r0,1000 /* cyc2ns(clock,cycle_delta) */
3: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */
st %r0,24(%r15)
lhi %r0,1000
l %r0,__VDSO_NTP_MULT(%r5)
ltr %r1,%r1
mr %r0,%r0
jnm 4f
ahi %r0,1000
a %r0,__VDSO_NTP_MULT(%r5)
4: al %r0,24(%r15)
srdl %r0,12
al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */

4
arch/s390/kernel/vdso64/clock_gettime.S
View file

@ -36,7 +36,7 @@ __kernel_clock_gettime:
stck 48(%r15) /* Store TOD clock */
lg %r1,48(%r15)
sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */
mghi %r1,1000
msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */
srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */
alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */
lg %r0,__VDSO_XTIME_SEC(%r5)
@ -64,7 +64,7 @@ __kernel_clock_gettime:
stck 48(%r15) /* Store TOD clock */
lg %r1,48(%r15)
sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */
mghi %r1,1000
msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */
srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */
alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */
lg %r0,__VDSO_XTIME_SEC(%r5)

2
arch/s390/kernel/vdso64/gettimeofday.S
View file

@ -31,7 +31,7 @@ __kernel_gettimeofday:
stck 48(%r15) /* Store TOD clock */
lg %r1,48(%r15)
sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */
mghi %r1,1000
msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */
srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */
alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime.tv_nsec */
lg %r0,__VDSO_XTIME_SEC(%r5) /* xtime.tv_sec */

3
arch/sparc/Kconfig
View file

@ -37,6 +37,9 @@ config SPARC64
def_bool 64BIT
select ARCH_SUPPORTS_MSI
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_GRAPH_FP_TEST
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_KRETPROBES
select HAVE_KPROBES
select HAVE_LMB

5
arch/sparc/Kconfig.debug
View file

@ -19,13 +19,10 @@ config DEBUG_DCFLUSH
bool "D-cache flush debugging"
depends on SPARC64 && DEBUG_KERNEL
config STACK_DEBUG
bool "Stack Overflow Detection Support"
config MCOUNT
bool
depends on SPARC64
depends on STACK_DEBUG || FUNCTION_TRACER
depends on FUNCTION_TRACER
default y
config FRAME_POINTER

2
arch/sparc/include/asm/cpudata_64.h
View file

@ -17,7 +17,7 @@ typedef struct {
unsigned int __nmi_count;
unsigned long clock_tick; /* %tick's per second */
unsigned long __pad;
unsigned int __pad1;
unsigned int irq0_irqs;
unsigned int __pad2;
/* Dcache line 2, rarely used */

21
arch/sparc/include/asm/irqflags_64.h
View file

@ -76,9 +76,26 @@ static inline int raw_irqs_disabled(void)
*/
static inline unsigned long __raw_local_irq_save(void)
{
unsigned long flags = __raw_local_save_flags();
unsigned long flags, tmp;
raw_local_irq_disable();
/* Disable interrupts to PIL_NORMAL_MAX unless we already
* are using PIL_NMI, in which case PIL_NMI is retained.
*
* The only values we ever program into the %pil are 0,
* PIL_NORMAL_MAX and PIL_NMI.
*
* Since PIL_NMI is the largest %pil value and all bits are
* set in it (0xf), it doesn't matter what PIL_NORMAL_MAX
* actually is.
*/
__asm__ __volatile__(
"rdpr %%pil, %0\n\t"
"or %0, %2, %1\n\t"
"wrpr %1, 0x0, %%pil"
: "=r" (flags), "=r" (tmp)
: "i" (PIL_NORMAL_MAX)
: "memory"
);
return flags;
}

2
arch/sparc/include/asm/thread_info_64.h
View file

@ -111,7 +111,7 @@ struct thread_info {
#define THREAD_SHIFT PAGE_SHIFT
#endif /* PAGE_SHIFT == 13 */
#define PREEMPT_ACTIVE 0x4000000
#define PREEMPT_ACTIVE 0x10000000
/*
* macros/functions for gaining access to the thread information structure

10
arch/sparc/kernel/Makefile
View file

@ -13,6 +13,14 @@ extra-y += init_task.o
CPPFLAGS_vmlinux.lds := -Usparc -m$(BITS)
extra-y += vmlinux.lds
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_ftrace.o := -pg
CFLAGS_REMOVE_time_$(BITS).o := -pg
CFLAGS_REMOVE_perf_event.o := -pg
CFLAGS_REMOVE_pcr.o := -pg
endif
obj-$(CONFIG_SPARC32) += entry.o wof.o wuf.o
obj-$(CONFIG_SPARC32) += etrap_32.o
obj-$(CONFIG_SPARC32) += rtrap_32.o
@ -85,7 +93,7 @@ obj-$(CONFIG_KGDB) += kgdb_$(BITS).o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
CFLAGS_REMOVE_ftrace.o := -pg
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_EARLYFB) += btext.o
obj-$(CONFIG_STACKTRACE) += stacktrace.o

60
arch/sparc/kernel/ftrace.c
View file

@ -13,7 +13,7 @@ static const u32 ftrace_nop = 0x01000000;
static u32 ftrace_call_replace(unsigned long ip, unsigned long addr)
{
static u32 call;
u32 call;
s32 off;
off = ((s32)addr - (s32)ip);
@ -91,3 +91,61 @@ int __init ftrace_dyn_arch_init(void *data)
return 0;
}
#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
extern void ftrace_graph_call(void);
int ftrace_enable_ftrace_graph_caller(void)
{
unsigned long ip = (unsigned long)(&ftrace_graph_call);
u32 old, new;
old = *(u32 *) &ftrace_graph_call;
new = ftrace_call_replace(ip, (unsigned long) &ftrace_graph_caller);
return ftrace_modify_code(ip, old, new);
}
int ftrace_disable_ftrace_graph_caller(void)
{
unsigned long ip = (unsigned long)(&ftrace_graph_call);
u32 old, new;
old = *(u32 *) &ftrace_graph_call;
new = ftrace_call_replace(ip, (unsigned long) &ftrace_stub);
return ftrace_modify_code(ip, old, new);
}
#endif /* !CONFIG_DYNAMIC_FTRACE */
/*
* Hook the return address and push it in the stack of return addrs
* in current thread info.
*/
unsigned long prepare_ftrace_return(unsigned long parent,
unsigned long self_addr,
unsigned long frame_pointer)
{
unsigned long return_hooker = (unsigned long) &return_to_handler;
struct ftrace_graph_ent trace;
if (unlikely(atomic_read(&current->tracing_graph_pause)))
return parent + 8UL;
if (ftrace_push_return_trace(parent, self_addr, &trace.depth,
frame_pointer) == -EBUSY)
return parent + 8UL;
trace.func = self_addr;
/* Only trace if the calling function expects to */
if (!ftrace_graph_entry(&trace)) {
current->curr_ret_stack--;
return parent + 8UL;
}
return return_hooker;
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */

31
arch/sparc/kernel/irq_64.c
View file

@ -20,7 +20,9 @@
#include <linux/delay.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/ftrace.h>
#include <linux/irq.h>
#include <linux/kmemleak.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
@ -45,6 +47,7 @@
#include "entry.h"
#include "cpumap.h"
#include "kstack.h"
#define NUM_IVECS (IMAP_INR + 1)
@ -647,6 +650,14 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
if (unlikely(!bucket))
return 0;
/* The only reference we store to the IRQ bucket is
* by physical address which kmemleak can't see, tell
* it that this object explicitly is not a leak and
* should be scanned.
*/
kmemleak_not_leak(bucket);
__flush_dcache_range((unsigned long) bucket,
((unsigned long) bucket +
sizeof(struct ino_bucket)));
@ -703,25 +714,7 @@ void ack_bad_irq(unsigned int virt_irq)
void *hardirq_stack[NR_CPUS];
void *softirq_stack[NR_CPUS];
static __attribute__((always_inline)) void *set_hardirq_stack(void)
{
void *orig_sp, *sp = hardirq_stack[smp_processor_id()];
__asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp));
if (orig_sp < sp ||
orig_sp > (sp + THREAD_SIZE)) {
sp += THREAD_SIZE - 192 - STACK_BIAS;
__asm__ __volatile__("mov %0, %%sp" : : "r" (sp));
}
return orig_sp;
}
static __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp)
{
__asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp));
}
void handler_irq(int irq, struct pt_regs *regs)
void __irq_entry handler_irq(int irq, struct pt_regs *regs)
{
unsigned long pstate, bucket_pa;
struct pt_regs *old_regs;

3
arch/sparc/kernel/kgdb_64.c
View file

@ -5,6 +5,7 @@
#include <linux/kgdb.h>
#include <linux/kdebug.h>
#include <linux/ftrace.h>
#include <asm/kdebug.h>
#include <asm/ptrace.h>
@ -108,7 +109,7 @@ void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs)
}
#ifdef CONFIG_SMP
void smp_kgdb_capture_client(int irq, struct pt_regs *regs)
void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs)
{
unsigned long flags;

19
arch/sparc/kernel/kstack.h
View file

@ -61,4 +61,23 @@ static inline bool kstack_is_trap_frame(struct thread_info *tp, struct pt_regs *
}
static inline __attribute__((always_inline)) void *set_hardirq_stack(void)
{
void *orig_sp, *sp = hardirq_stack[smp_processor_id()];
__asm__ __volatile__("mov %%sp, %0" : "=r" (orig_sp));
if (orig_sp < sp ||
orig_sp > (sp + THREAD_SIZE)) {
sp += THREAD_SIZE - 192 - STACK_BIAS;
__asm__ __volatile__("mov %0, %%sp" : : "r" (sp));
}
return orig_sp;
}
static inline __attribute__((always_inline)) void restore_hardirq_stack(void *orig_sp)
{
__asm__ __volatile__("mov %0, %%sp" : : "r" (orig_sp));
}
#endif /* _KSTACK_H */

10
arch/sparc/kernel/nmi.c
View file

@ -23,6 +23,8 @@
#include <asm/ptrace.h>
#include <asm/pcr.h>
#include "kstack.h"
/* We don't have a real NMI on sparc64, but we can fake one
* up using profiling counter overflow interrupts and interrupt
* levels.
@ -92,7 +94,7 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
{
unsigned int sum, touched = 0;
int cpu = smp_processor_id();
void *orig_sp;
clear_softint(1 << irq);
@ -100,13 +102,15 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
nmi_enter();
orig_sp = set_hardirq_stack();
if (notify_die(DIE_NMI, "nmi", regs, 0,
pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP)
touched = 1;
else
pcr_ops->write(PCR_PIC_PRIV);
sum = kstat_irqs_cpu(0, cpu);
sum = local_cpu_data().irq0_irqs;
if (__get_cpu_var(nmi_touch)) {
__get_cpu_var(nmi_touch) = 0;
touched = 1;
@ -125,6 +129,8 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs)
pcr_ops->write(pcr_enable);
}
restore_hardirq_stack(orig_sp);
nmi_exit();
}

11
arch/sparc/kernel/pci_common.c
View file

@ -371,14 +371,19 @@ static void pci_register_iommu_region(struct pci_pbm_info *pbm)
struct resource *rp = kzalloc(sizeof(*rp), GFP_KERNEL);
if (!rp) {
prom_printf("Cannot allocate IOMMU resource.\n");
prom_halt();
pr_info("%s: Cannot allocate IOMMU resource.\n",
pbm->name);
return;
}
rp->name = "IOMMU";
rp->start = pbm->mem_space.start + (unsigned long) vdma[0];
rp->end = rp->start + (unsigned long) vdma[1] - 1UL;
rp->flags = IORESOURCE_BUSY;
request_resource(&pbm->mem_space, rp);
if (request_resource(&pbm->mem_space, rp)) {
pr_info("%s: Unable to request IOMMU resource.\n",
pbm->name);
kfree(rp);
}
}
}

3
arch/sparc/kernel/pcr.c
View file

@ -8,6 +8,7 @@
#include <linux/irq.h>
#include <linux/perf_event.h>
#include <linux/ftrace.h>
#include <asm/pil.h>
#include <asm/pcr.h>
@ -34,7 +35,7 @@ unsigned int picl_shift;
* Therefore in such situations we defer the work by signalling
* a lower level cpu IRQ.
*/
void deferred_pcr_work_irq(int irq, struct pt_regs *regs)
void __irq_entry deferred_pcr_work_irq(int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs;

12
arch/sparc/kernel/rtrap_64.S
View file

@ -130,7 +130,17 @@ rtrap_xcall:
nop
call trace_hardirqs_on
nop
wrpr %l4, %pil
/* Do not actually set the %pil here. We will do that
* below after we clear PSTATE_IE in the %pstate register.
* If we re-enable interrupts here, we can recurse down
* the hardirq stack potentially endlessly, causing a
* stack overflow.
*
* It is tempting to put this test and trace_hardirqs_on
* call at the 'rt_continue' label, but that will not work
* as that path hits unconditionally and we do not want to
* execute this in NMI return paths, for example.
*/
#endif
rtrap_no_irq_enable:
andcc %l1, TSTATE_PRIV, %l3

11
arch/sparc/kernel/smp_64.c
View file

@ -22,6 +22,7 @@
#include <linux/profile.h>
#include <linux/bootmem.h>
#include <linux/vmalloc.h>
#include <linux/ftrace.h>
#include <linux/cpu.h>
#include <linux/slab.h>
@ -823,13 +824,13 @@ void arch_send_call_function_single_ipi(int cpu)
&cpumask_of_cpu(cpu));
}
void smp_call_function_client(int irq, struct pt_regs *regs)
void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs)
{
clear_softint(1 << irq);
generic_smp_call_function_interrupt();
}
void smp_call_function_single_client(int irq, struct pt_regs *regs)
void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs)
{
clear_softint(1 << irq);
generic_smp_call_function_single_interrupt();
@ -965,7 +966,7 @@ void flush_dcache_page_all(struct mm_struct *mm, struct page *page)
put_cpu();
}
void smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs)
{
struct mm_struct *mm;
unsigned long flags;
@ -1149,7 +1150,7 @@ void smp_release(void)
*/
extern void prom_world(int);
void smp_penguin_jailcell(int irq, struct pt_regs *regs)
void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs)
{
clear_softint(1 << irq);
@ -1365,7 +1366,7 @@ void smp_send_reschedule(int cpu)
&cpumask_of_cpu(cpu));
}
void smp_receive_signal_client(int irq, struct pt_regs *regs)
void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
{
clear_softint(1 << irq);
}

4
arch/sparc/kernel/time_64.c
View file

@ -35,6 +35,7 @@
#include <linux/clocksource.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/ftrace.h>
#include <asm/oplib.h>
#include <asm/timer.h>
@ -717,7 +718,7 @@ static struct clock_event_device sparc64_clockevent = {
};
static DEFINE_PER_CPU(struct clock_event_device, sparc64_events);
void timer_interrupt(int irq, struct pt_regs *regs)
void __irq_entry timer_interrupt(int irq, struct pt_regs *regs)
{
struct pt_regs *old_regs = set_irq_regs(regs);
unsigned long tick_mask = tick_ops->softint_mask;
@ -728,6 +729,7 @@ void timer_interrupt(int irq, struct pt_regs *regs)
irq_enter();
local_cpu_data().irq0_irqs++;
kstat_incr_irqs_this_cpu(0, irq_to_desc(0));
if (unlikely(!evt->event_handler)) {

26
arch/sparc/kernel/traps_64.c
View file

@ -2203,27 +2203,6 @@ void dump_stack(void)
EXPORT_SYMBOL(dump_stack);
static inline int is_kernel_stack(struct task_struct *task,
struct reg_window *rw)
{
unsigned long rw_addr = (unsigned long) rw;
unsigned long thread_base, thread_end;
if (rw_addr < PAGE_OFFSET) {
if (task != &init_task)
return 0;
}
thread_base = (unsigned long) task_stack_page(task);
thread_end = thread_base + sizeof(union thread_union);
if (rw_addr >= thread_base &&
rw_addr < thread_end &&
!(rw_addr & 0x7UL))
return 1;
return 0;
}
static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
{
unsigned long fp = rw->ins[6];
@ -2252,6 +2231,7 @@ void die_if_kernel(char *str, struct pt_regs *regs)
show_regs(regs);
add_taint(TAINT_DIE);
if (regs->tstate & TSTATE_PRIV) {
struct thread_info *tp = current_thread_info();
struct reg_window *rw = (struct reg_window *)
(regs->u_regs[UREG_FP] + STACK_BIAS);
@ -2259,8 +2239,8 @@ void die_if_kernel(char *str, struct pt_regs *regs)
* find some badly aligned kernel stack.
*/
while (rw &&
count++ < 30&&
is_kernel_stack(current, rw)) {
count++ < 30 &&
kstack_valid(tp, (unsigned long) rw)) {
printk("Caller[%016lx]: %pS\n", rw->ins[7],
(void *) rw->ins[7]);

6
arch/sparc/kernel/unaligned_64.c
View file

@ -50,7 +50,7 @@ static inline enum direction decode_direction(unsigned int insn)
}
/* 16 = double-word, 8 = extra-word, 4 = word, 2 = half-word */
static inline int decode_access_size(unsigned int insn)
static inline int decode_access_size(struct pt_regs *regs, unsigned int insn)
{
unsigned int tmp;
@ -66,7 +66,7 @@ static inline int decode_access_size(unsigned int insn)
return 2;
else {
printk("Impossible unaligned trap. insn=%08x\n", insn);
die_if_kernel("Byte sized unaligned access?!?!", current_thread_info()->kregs);
die_if_kernel("Byte sized unaligned access?!?!", regs);
/* GCC should never warn that control reaches the end
* of this function without returning a value because
@ -286,7 +286,7 @@ static void log_unaligned(struct pt_regs *regs)
asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
{
enum direction dir = decode_direction(insn);
int size = decode_access_size(insn);
int size = decode_access_size(regs, insn);
int orig_asi, asi;
current_thread_info()->kern_una_regs = regs;

5
arch/sparc/kernel/vmlinux.lds.S
View file

@ -46,11 +46,16 @@ SECTIONS
SCHED_TEXT
LOCK_TEXT
KPROBES_TEXT
IRQENTRY_TEXT
*(.gnu.warning)
} = 0
_etext = .;
RO_DATA(PAGE_SIZE)
/* Start of data section */
_sdata = .;
.data1 : {
*(.data1)
}

159
arch/sparc/lib/mcount.S
View file

@ -7,26 +7,11 @@
#include <linux/linkage.h>
#include <asm/ptrace.h>
#include <asm/thread_info.h>
/*
* This is the main variant and is called by C code. GCC's -pg option
* automatically instruments every C function with a call to this.
*/
#ifdef CONFIG_STACK_DEBUG
#define OVSTACKSIZE 4096 /* lets hope this is enough */
.data
.align 8
panicstring:
.asciz "Stack overflow\n"
.align 8
ovstack:
.skip OVSTACKSIZE
#endif
.text
.align 32
.globl _mcount
@ -35,84 +20,48 @@ ovstack:
.type mcount,#function
_mcount:
mcount:
#ifdef CONFIG_STACK_DEBUG
/*
* Check whether %sp is dangerously low.
*/
ldub [%g6 + TI_FPDEPTH], %g1
srl %g1, 1, %g3
add %g3, 1, %g3
sllx %g3, 8, %g3 ! each fpregs frame is 256b
add %g3, 192, %g3
add %g6, %g3, %g3 ! where does task_struct+frame end?
sub %g3, STACK_BIAS, %g3
cmp %sp, %g3
bg,pt %xcc, 1f
nop
lduh [%g6 + TI_CPU], %g1
sethi %hi(hardirq_stack), %g3
or %g3, %lo(hardirq_stack), %g3
sllx %g1, 3, %g1
ldx [%g3 + %g1], %g7
sub %g7, STACK_BIAS, %g7
cmp %sp, %g7
bleu,pt %xcc, 2f
sethi %hi(THREAD_SIZE), %g3
add %g7, %g3, %g7
cmp %sp, %g7
blu,pn %xcc, 1f
2: sethi %hi(softirq_stack), %g3
or %g3, %lo(softirq_stack), %g3
ldx [%g3 + %g1], %g7
sub %g7, STACK_BIAS, %g7
cmp %sp, %g7
bleu,pt %xcc, 3f
sethi %hi(THREAD_SIZE), %g3
add %g7, %g3, %g7
cmp %sp, %g7
blu,pn %xcc, 1f
nop
/* If we are already on ovstack, don't hop onto it
* again, we are already trying to output the stack overflow
* message.
*/
3: sethi %hi(ovstack), %g7 ! cant move to panic stack fast enough
or %g7, %lo(ovstack), %g7
add %g7, OVSTACKSIZE, %g3
sub %g3, STACK_BIAS + 192, %g3
sub %g7, STACK_BIAS, %g7
cmp %sp, %g7
blu,pn %xcc, 2f
cmp %sp, %g3
bleu,pn %xcc, 1f
nop
2: mov %g3, %sp
sethi %hi(panicstring), %g3
call prom_printf
or %g3, %lo(panicstring), %o0
call prom_halt
nop
1:
#endif
#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_DYNAMIC_FTRACE
mov %o7, %o0
.globl mcount_call
mcount_call:
call ftrace_stub
mov %o0, %o7
/* Do nothing, the retl/nop below is all we need. */
#else
sethi %hi(ftrace_trace_function), %g1
sethi %hi(function_trace_stop), %g1
lduw [%g1 + %lo(function_trace_stop)], %g2
brnz,pn %g2, 2f
sethi %hi(ftrace_trace_function), %g1
sethi %hi(ftrace_stub), %g2
ldx [%g1 + %lo(ftrace_trace_function)], %g1
or %g2, %lo(ftrace_stub), %g2
cmp %g1, %g2
be,pn %icc, 1f
mov %i7, %o1
jmpl %g1, %g0
mov %o7, %o0
mov %i7, %g3
save %sp, -176, %sp
mov %g3, %o1
jmpl %g1, %o7
mov %i7, %o0
ret
restore
/* not reached */
1:
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
sethi %hi(ftrace_graph_return), %g1
ldx [%g1 + %lo(ftrace_graph_return)], %g3
cmp %g2, %g3
bne,pn %xcc, 5f
sethi %hi(ftrace_graph_entry_stub), %g2
sethi %hi(ftrace_graph_entry), %g1
or %g2, %lo(ftrace_graph_entry_stub), %g2
ldx [%g1 + %lo(ftrace_graph_entry)], %g1
cmp %g1, %g2
be,pt %xcc, 2f
nop
5: mov %i7, %g2
mov %fp, %g3
save %sp, -176, %sp
mov %g2, %l0
ba,pt %xcc, ftrace_graph_caller
mov %g3, %l1
#endif
2:
#endif
#endif
retl
@ -131,14 +80,50 @@ ftrace_stub:
.globl ftrace_caller
.type ftrace_caller,#function
ftrace_caller:
mov %i7, %o1
mov %o7, %o0
sethi %hi(function_trace_stop), %g1
mov %i7, %g2
lduw [%g1 + %lo(function_trace_stop)], %g1
brnz,pn %g1, ftrace_stub
mov %fp, %g3
save %sp, -176, %sp
mov %g2, %o1
mov %g2, %l0
mov %g3, %l1
.globl ftrace_call
ftrace_call:
call ftrace_stub
mov %o0, %o7
retl
mov %i7, %o0
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
.globl ftrace_graph_call
ftrace_graph_call:
call ftrace_stub
nop
#endif
ret
restore
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
.size ftrace_graph_call,.-ftrace_graph_call
#endif
.size ftrace_call,.-ftrace_call
.size ftrace_caller,.-ftrace_caller
#endif
#endif
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
ENTRY(ftrace_graph_caller)
mov %l0, %o0
mov %i7, %o1
call prepare_ftrace_return
mov %l1, %o2
ret
restore %o0, -8, %i7
END(ftrace_graph_caller)
ENTRY(return_to_handler)
save %sp, -176, %sp
call ftrace_return_to_handler
mov %fp, %o0
jmpl %o0 + 8, %g0
restore
END(return_to_handler)
#endif

1
arch/um/drivers/line.c
View file

@ -6,6 +6,7 @@
#include "linux/irqreturn.h"
#include "linux/kd.h"
#include "linux/sched.h"
#include "linux/slab.h"
#include "chan_kern.h"
#include "irq_kern.h"
#include "irq_user.h"

1
arch/um/os-Linux/helper.c
View file

@ -8,7 +8,6 @@
#include <errno.h>
#include <sched.h>
#include <linux/limits.h>
#include <linux/slab.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include "kern_constants.h"

2
arch/x86/ia32/ia32entry.S
View file

@ -626,7 +626,7 @@ ia32_sys_call_table:
.quad stub32_sigreturn
.quad stub32_clone /* 120 */
.quad sys_setdomainname
.quad sys_uname
.quad sys_newuname
.quad sys_modify_ldt
.quad compat_sys_adjtimex
.quad sys32_mprotect /* 125 */

3
arch/x86/include/asm/amd_iommu_types.h
View file

@ -21,6 +21,7 @@
#define _ASM_X86_AMD_IOMMU_TYPES_H
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/spinlock.h>
@ -140,6 +141,7 @@
/* constants to configure the command buffer */
#define CMD_BUFFER_SIZE 8192
#define CMD_BUFFER_UNINITIALIZED 1
#define CMD_BUFFER_ENTRIES 512
#define MMIO_CMD_SIZE_SHIFT 56
#define MMIO_CMD_SIZE_512 (0x9ULL << MMIO_CMD_SIZE_SHIFT)
@ -237,6 +239,7 @@ struct protection_domain {
struct list_head list; /* for list of all protection domains */
struct list_head dev_list; /* List of all devices in this domain */
spinlock_t lock; /* mostly used to lock the page table*/
struct mutex api_lock; /* protect page tables in the iommu-api path */
u16 id; /* the domain id written to the device table */
int mode; /* paging mode (0-6 levels) */
u64 *pt_root; /* page table root pointer */

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