| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
Generic rt_sigsuspend syscalls doesn't need any asm wrapper.
Signed-off-by: Michal Simek <[email protected]>
|
|
The noMMU syscall trap has a bug that causes R11 to be zero on return to
userland. Remove the extra "save" of R11 responsible for the bug.
Remove reloading of mode indicator because r11 already contains it.
Signed-off-by: Steven J. Magnani <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
|
|
Microblaze version 7.20.d is the first MB version which can be run
on MMU linux. Please do not used previous version because they contain
HW bug.
Based on WB support was necessary to redesign whole cache design.
Microblaze versions from 7.20.a don't need to disable IRQ and cache
before working with them that's why there are special structures for it.
Signed-off-by: Michal Simek <[email protected]>
|
|
Microblaze v7.30.a will have 0x10 version string.
Signed-off-by: Michal Simek <[email protected]>
|
|
We need to continue with next microblaze PVR version that's why
I have to remove that ancient version. These version strings not match
any versions. From Microblaze v5.00.a is possible to use this style.
I believe that none use ancients versions. If yes they will be just
labeled as unknown version.
Signed-off-by: Michal Simek <[email protected]>
|
|
panic_timeout is in BSS section and it is cleared with BSS section.
This means that value is setup to 0.
Signed-off-by: Michal Simek <[email protected]>
|
|
There is not necessary to count system calls that's why
I added DEBUG macro
Signed-off-by: Michal Simek <[email protected]>
|
|
Level interrupts need to be ack'd in the unmask handler, as in powerpc.
Among other issues, this bug causes the system clock to appear to run at
double-speed.
Signed-off-by: Steven J. Magnani <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
|
|
Futimesat was disabled. LTP testing shows that MB has no
problem with this syscall.
Signed-off-by: Michal Simek <[email protected]>
|
|
WB cache has special flag in PVR. There is added checking mechanism
for PVR and DTS.
Signed-off-by: Michal Simek <[email protected]>
|
|
The device tree handling for the gpio in the heart beat was not handling
the system when there was no gpio and it wasn't working with a newer version
of the gpio core which does not have the is-bidir property.
Signed-off-by: John Linn <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
|
|
Signed-off-by: Michal Simek <[email protected]>
|
|
After the signal frame is set up on the userspace stack, ptrace() should
be given an opportunity to single-step into the signal handler
FRV, Blackfin, mn10300 and UM. Worth to look at that patches.
Signed-off-by: Michal Simek <[email protected]>
|
|
There is missing checking agains PVR but this is not important
for now. There are some missing checking too.
Signed-off-by: Michal Simek <[email protected]>
|
|
We used cache_line as cache_line_lenght. For this reason
we did cache flushing 4 times longer than was necessary.
Signed-off-by: Michal Simek <[email protected]>
|
|
Signed-off-by: Michal Simek <[email protected]>
|
|
Till this patch reset always perform writen to 1.
Now we can use negative logic and perform reset write to 0.
It is opposite level than is currently read from that pin
Signed-off-by: Michal Simek <[email protected]>
|
|
I had to change message for gpio-reset because I always
not to see it. Prefix RESET is big and visible.
Signed-off-by: Michal Simek <[email protected]>
|
|
Saving is done in SAVE_STATE macros that's why another save discard
previous saved value.
This change has no effect to normal programs because they ends in any exception
and they are killed. On the other side has effect on debugging.
Signed-off-by: Michal Simek <[email protected]>
|
|
This patch add support for dynamic function graph tracer.
There is one my expactation that I can do flush_icache after
all code modification. On microblaze is this safer than do
flush for every entry. For icache is used name flush but
correct should be invalidation - this will be fix in upcomming
new cache implementaion and WB support.
Signed-off-by: Michal Simek <[email protected]>
|
|
For more information look at Documentation/trace folder.
Signed-off-by: Michal Simek <[email protected]>
|
|
With dynamic function tracer, by default, _mcount is defined as an
"empty" function, it returns directly without any more action. When
enabling it in user-space, it will jump to a real tracing
function(ftrace_caller), and do the real job for us.
Differ from the static function tracer, dynamic function tracer provides
two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the
tracing of some indicated kernel functions(set_ftrace_filter).
In the kernel version, there is only one "_mcount" string for every
kernel function, so, we just need to match this one in mcount_regex of
scripts/recordmcount.pl.
For more information please look at code and Documentation/trace folder.
Steven ACK that scripts/recordmcount.pl part.
Acked-by: Steven Rostedt <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
|
|
Implement MCOUNT_TEST in asm code - it is faster than use
generic code
Signed-off-by: Michal Simek <[email protected]>
|
|
If -pg of gcc is enabled with CONFIG_FUNCTION_TRACER=y. a calling to
_mcount will be inserted into each kernel function. so, there is a
possibility to trace the kernel functions in _mcount.
This patch add the specific _mcount support for static function
tracing. by default, ftrace_trace_function is initialized as
ftrace_stub(an empty function), so, the default _mcount will introduce
very little overhead. after enabling ftrace in user-space, it will jump
to a real tracing function and do static function tracing for us.
Commit message from Wu Zhangjin <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
|
|
There are just two major changes
Renamed local_irq functions to raw_local_irq in irq.c.
Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug.
Look at Documentation/irqflags-tracing.txt
Signed-off-by: Michal Simek <[email protected]>
|
|
Microblaze needs to do lock_init very soon because MMU init calls lock functions.
Here is the explanation from Peter Zijlstra why we have to enable
__ARCH_WANTS_INTERRUPTS_ON_CTSW.
"So we schedule while holding rq->lock (for obvious reasons), but since
lockdep tracks held locks per tasks, we need to transfer the held state
from the prev to the next task. We do this by explicity calling
spin_release(&rq->lock) in context_switch() right before switch_to(),
and calling spin_acquire(&rq->lock) in
finish_task_switch()->finish_lock_switch().
Now, for some reason lockdep thinks that interrupts got enabled over the
context switch (git grep __ARCH_WANTS_INTERRUPTS_ON_CTSW arch/microblaze
doesn't seem to turn up anything).
Clearly trying to acquire the rq->lock with interrupts enabled is a bad
idea and lockdep warns you about this."
Signed-off-by: Michal Simek <[email protected]>
|
|
It is the same counter as we use as free running one.
I would like to use it for ftrace.
Signed-off-by: Michal Simek <[email protected]>
|
|
This is working implemetation but the problem is that
Microblaze misses frame pointer that's why is there
big loop which trace and show all addresses which are in text.
It shows addresses which are in registers, etc.
This is problem and this is the reason why all Microblaze
traces are wrong. There is an option to do hacks and trace
the kernel code but this is too complicated.
Signed-off-by: Michal Simek <[email protected]>
|
|
It is important for ftrace irqsoff support
Signed-off-by: Michal Simek <[email protected]>
|
|
The problem was that free_initmem pass to free_initrd_mem got
bad aligned __init_begin symbol and free_initrd_mem don't care
about __init_end but take PAGE_SIZE instead.
Here is behavior in kernel bootlog.
ramdisk_execute_command from (init/main.c) was rewrite
Freeing unused kernel memory: 6224k freed
Failed to execute ��������������{���
Failed to execute ��������������{����. Attempting defaults...
Mounting proc:
Mounting var:
Signed-off-by: Michal Simek <[email protected]>
|
|
Signed-off-by: Michal Simek <[email protected]>
|
|
New helper - sys_mmap_pgoff(); switch syscalls to using it.
Acked-by: David S. Miller <[email protected]>
Signed-off-by: Al Viro <[email protected]>
|
|
Merge common code between PowerPC and Microblaze. This patch
splits the arch-specific stuff out into a new function,
early_init_dt_scan_chosen_arch().
Signed-off-by: Grant Likely <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
|
|
A cell is firmly established as a u32. No need to do an ugly typedef
to redefine it to cell_t. Eliminate the unnecessary typedef so that
it doesn't have to be added to the of_fdt header file
Signed-off-by: Grant Likely <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
|
|
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
mac80211: fix reorder buffer release
iwmc3200wifi: Enable wimax core through module parameter
iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
iwmc3200wifi: Coex table command does not expect a response
iwmc3200wifi: Update wiwi priority table
iwlwifi: driver version track kernel version
iwlwifi: indicate uCode type when fail dump error/event log
iwl3945: remove duplicated event logging code
b43: fix two warnings
ipw2100: fix rebooting hang with driver loaded
cfg80211: indent regulatory messages with spaces
iwmc3200wifi: fix NULL pointer dereference in pmkid update
mac80211: Fix TX status reporting for injected data frames
ath9k: enable 2GHz band only if the device supports it
airo: Fix integer overflow warning
rt2x00: Fix padding bug on L2PAD devices.
WE: Fix set events not propagated
b43legacy: avoid PPC fault during resume
b43: avoid PPC fault during resume
tcp: fix a timewait refcnt race
...
Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
kernel/sysctl_check.c
net/ipv4/sysctl_net_ipv4.c
net/ipv6/addrconf.c
net/sctp/sysctl.c
|
|
Merge common code between PowerPC and MicroBlaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and MicroBlaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and MicroBlaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and MicroBlaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between PowerPC and Microblaze
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
Merge common code between Microblaze and PowerPC.
Signed-off-by: Grant Likely <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Tested-by: Michal Simek <[email protected]>
|
|
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/sfc/sfe4001.c
drivers/net/wireless/libertas/cmd.c
drivers/staging/Kconfig
drivers/staging/Makefile
drivers/staging/rtl8187se/Kconfig
drivers/staging/rtl8192e/Kconfig
|
|
Merge common code between Microblaze and PowerPC, and make it available
to Sparc
Signed-off-by: Grant Likely <[email protected]>
Acked-by: David S. Miller <[email protected]>
Acked-by: Wolfram Sang <[email protected]>
Acked-by: Michal Simek <[email protected]>
Acked-by: Stephen Neuendorffer <[email protected]>
Acked-by: Stephen Rothwell <[email protected]>
|
|
Add a common header file for working with the flattened device tree
data structure and merge the shared data tags used by Microblaze and
PowerPC
Signed-off-by: Grant Likely <[email protected]>
Acked-by: David S. Miller <[email protected]>
Acked-by: Wolfram Sang <[email protected]>
Acked-by: Michal Simek <[email protected]>
Acked-by: Stephen Neuendorffer <[email protected]>
Acked-by: Stephen Rothwell <[email protected]>
|
|
Meaning receive multiple messages, reducing the number of syscalls and
net stack entry/exit operations.
Next patches will introduce mechanisms where protocols that want to
optimize this operation will provide an unlocked_recvmsg operation.
This takes into account comments made by:
. Paul Moore: sock_recvmsg is called only for the first datagram,
sock_recvmsg_nosec is used for the rest.
. Caitlin Bestler: recvmmsg now has a struct timespec timeout, that
works in the same fashion as the ppoll one.
If the underlying protocol returns a datagram with MSG_OOB set, this
will make recvmmsg return right away with as many datagrams (+ the OOB
one) it has received so far.
. Rémi Denis-Courmont & Steven Whitehouse: If we receive N < vlen
datagrams and then recvmsg returns an error, recvmmsg will return
the successfully received datagrams, store the error and return it
in the next call.
This paves the way for a subsequent optimization, sk_prot->unlocked_recvmsg,
where we will be able to acquire the lock only at batch start and end, not at
every underlying recvmsg call.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
|