06 Sep, 2005
18 commits
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Remove the CPU_FTR_PMC8 feature now we encode the number of PMCs
directly.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Add a field in the cputable struct to store the number of PMCs.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
I would like to be able to read the lparcfg data from any user so we
can make "intelligent" decisions based on underlying attributes when
running in lpars. Yes there's software that likes to do this :) and
runs as non-root.It's very similar to say VM where you can get CP to provide feedback
of the real hardware inside a VM guest.Signed-off-by: Wim Coekaerts
Signed-off-by: Paul Mackerras -
Removed PPC64 architecture specific users of asm/segment.h.
Signed-off-by: Kumar Gala
Signed-off-by: Paul Mackerras -
This patch merges several include files from
asm-ppc and asm-ppc64 into the new asm-powerpc.Signed-off-by: Jon Loeliger
Signed-off-by: Kumar Gala
Signed-off-by: Paul Mackerras -
Merged several nearly-identical header files from asm-ppc and asm-ppc64
into asm-powerpc.Signed-off-by: Kumar Gala
Signed-off-by: Becky Bruce
Signed-off-by: Paul Mackerras -
cmpxchg has the following code:
__typeof__(*(ptr)) _o_ = (o);
__typeof__(*(ptr)) _n_ = (n);Unfortunately it makes gcc 4.0 store and load the variables to the stack.
Eg in atomic_dec_and_test we get:stw r10,112(r1)
stw r9,116(r1)
lwz r9,112(r1)
lwz r0,116(r1)x86 is just casting the values so do that instead. Also change __xchg*
and __cmpxchg* to take unsigned values, removing a few sign extensions.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Poison initmem after we free it so we catch use after free issues.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
The following patch fixes 2 issues:
1) use PLATFORM_LPAR bit to test if running in LPAR mode
2) systemcfg pointer is assigned from static data in
arch/ppc64/kernel/pacaData.c. The file arch/ppc64/kernel/head.S
now refers to is using the GOT binding to the pointer and hence
must deref it.Signed-off-by: Jimi Xenidis
Signed-off-by: Paul Mackerras -
Consolidate the early console and PPCDBG code in udbg.c
Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Trim some no longer needed includes from udbg.c and friends.
Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Take udbg out of ppc_md. Allows us to not overwrite early udbg inits
when assigning ppc_md.Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Split scc and 15550 functions from udbg each into their own file.
This makes them more symetric with the lpar and btext code.Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
make udbg_init_uart set the ppc_md udbg methods.
Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Make the 16550 and real mode 16550 use tail recursion like the scc code
instead of repeating the routine except for the character sent.Gcc recoginizes the tail recursion and handles it efficently without
stack allocations. The maple real putc shrinks from 188 to 104 bytes
of instructions. udbg_putc drops from 188 to 140 bytes.Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Now that xmon is fixed we should not need the dummy getc routines.
Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
udbg_getc_poll is a ppc_md function. don't call directly into udbg.c
Signed-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
inline pmac_call_feature references ppc_md so include asm/machdep.h
in asm/pmac_feature.hSigned-off-by: Milton Miller
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras
05 Sep, 2005
22 commits
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Automated merge from
master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
failed due to duplicate different changes to Kconfig file. Manually fixed
up. Hopefully. -
Fix reboot with a disconnected 3270 console.
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On s390 the lock value used for spinlocks consists of the lower 32 bits of the
PSW that holds the lock. If this address happens to be on a four gigabyte
boundary the lock is left unlocked. This allows other cpus to grab the same
lock and enter a lock protected code path concurrently. In theory this can
happen if the vmalloc area for the code of a module crosses a 4 GB boundary.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use TIF bit to tell if a process is running in 31 bit mode instead of checking
the addressing mode bits of the PSW.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
crypto device driver update:
- Suppress syslog messages for some return codes.
- Fix incorrect bounds checking in /proc interface.
- Remove hotplug calls.
- Remove linux version checks.
- Remove device workqueue on module unload.
Signed-off-by: Eric Rossman
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There is a race in pfault_interrupt. That function gets called two times for
each pfault notification. Once with a subcode of 0 to indicate that a real
page is not available and once with a subcode of 0x80 to indicate that the
page is present again.Since the two external interrupts can be delivered on two different cpus the
order in which the two calls are made is unpredictable. It is possible that
the subcode 0x80 interrupt is completed before the subcode 0x00 interrupt has
done the wake_up() call.To avoid calling wake_up() on an already removed task structure proper task
structure reference counting is needed. Increase the reference counter in the
subcode 0x00 interrupt before setting pfault_wait to zero and return the
reference after the wake_up call.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Common i/o layer changes:
- Collect the irb at the correct subchannel when waiting for the clear
interrupt during subchannel cleaning befor reIPL - don't stop at the first
interrupt that comes in.- Change "extern __inline__" to "static inline".
- Remove unneeded qdio includes.
Signed-off-by: Cornelia Huck
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for diag 250 access to dasd devices for 64 bit kernels. In
addition fix detach/attach for diag disks. The VM control block needs to get
recreated by a call to mdsk_init_io.Signed-off-by: Horst Hummel
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Reintroduce a read-only copy of the devmap features in the device struct.
This is necessary to solve a deadlock on the dasd_devmap_lock which is
acquired by dasd_get_features called from the dasd tasklet. The current
implementation of devmap doesn't allow to call any devmap function from
interrupt or softirq context.Signed-off-by: Horst Hummel
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
debug feature changes/bug fixes:
- Use get_clock() function instead of private inline assembly.
- Use 'struct timeval' instead of 'struct timespec' for call to
tod_to_timeval(). Now the microsecond part of the timestamp is correct
again.- Fix a locking problem: when creating a snapshot of the current content
of the debug areas, lock the entire debug_info object.Signed-off-by: Michael Holzheu
Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The new machine check handler still has a few bugs.
1) The system entry time has to be stored in the machine check handler,
2) the machine check return psw may not be stored at the usual place
because it might overwrite the return psw of the interrupted context,3) the return address for the call to s390_handle_mcck in the i/o interrupt
handler is not correct,4) the system call cleanup has to take the different save area of the
machine check handler into account,5) the machine check handler may not call UPDATE_VTIME before
CREATE_STACK_FRAME, and6) the io leave path needs a critical section cleanup to make sure that the
TIF_MCCK_PENDING bit is really checked before switching back to user space.Signed-off-by: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This file seems to be an accident.
Signed-off-by: Adrian Bunk
Signed-off-by: Chris Zankel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
"extern inline" doesn't make sense.
Signed-off-by: Adrian Bunk
Signed-off-by: Chris Zankel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We were leaking pmd pages when 3_LEVEL_PGTABLES was enabled. This fixes that.
Signed-off-by: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
