- 06 Sep, 2005 24 commits
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David Gibson authored
Currently, we set the class bit in kernel SLB entries, and clear it on user SLB entries. On POWER5, ERAT entries created in real mode have the class bit clear. So to avoid flushing kernel ERAT entries on each context switch, this patch inverts our usage of the class bit, setting it on user SLB entries and clearing it on kernel SLB entries. Booted on POWER5 and G5. Signed-off-by:
David Gibson <dwg@au1.ibm.com> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Anton Blanchard authored
Fix build with oprofile disabled. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
Move oprofile_model into cpu feature struct. Signed-off-by:
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Anton Blanchard authored
Move oprofile_impl.h into include/asm-ppc64 in preparation for moving oprofile_model into cpu feature struct. Signed-off-by:
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Anton Blanchard authored
Add oprofile cpu_type to cpu feature struct. Signed-off-by:
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Anton Blanchard authored
Change oprofile to use num_pmcs from the cpu feature struct. Signed-off-by:
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Anton Blanchard authored
Remove the CPU_FTR_PMC8 feature now we encode the number of PMCs directly. Signed-off-by:
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Anton Blanchard authored
Add a field in the cputable struct to store the number of PMCs. Signed-off-by:
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Wim Coekaerts authored
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 <wim.coekaerts@oracle.com> Signed-off-by:
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Kumar Gala authored
Removed PPC64 architecture specific users of asm/segment.h. Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Jon Loeliger authored
This patch merges several include files from asm-ppc and asm-ppc64 into the new asm-powerpc. Signed-off-by:
Jon Loeliger <jdl@freescale.com> Signed-off-by:
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Becky Bruce authored
Merged several nearly-identical header files from asm-ppc and asm-ppc64 into asm-powerpc. Signed-off-by:
Becky Bruce <becky.bruce@freescale.com> Signed-off-by:
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Anton Blanchard authored
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:
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Anton Blanchard authored
Poison initmem after we free it so we catch use after free issues. Signed-off-by:
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Jimi Xenidis authored
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 <jimix@watson.ibm.com> Signed-off-by:
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Milton Miller authored
Consolidate the early console and PPCDBG code in udbg.c Signed-off-by:
Milton Miller <miltonm@bga.com> Signed-off-by:
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Milton Miller authored
Trim some no longer needed includes from udbg.c and friends. Signed-off-by:
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Milton Miller authored
Take udbg out of ppc_md. Allows us to not overwrite early udbg inits when assigning ppc_md. Signed-off-by:
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Milton Miller authored
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:
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Milton Miller authored
make udbg_init_uart set the ppc_md udbg methods. Signed-off-by:
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Milton Miller authored
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:
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Milton Miller authored
Now that xmon is fixed we should not need the dummy getc routines. Signed-off-by:
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Milton Miller authored
udbg_getc_poll is a ppc_md function. don't call directly into udbg.c Signed-off-by:
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Milton Miller authored
inline pmac_call_feature references ppc_md so include asm/machdep.h in asm/pmac_feature.h Signed-off-by:
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- 05 Sep, 2005 16 commits
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Linus Torvalds authored
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.
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Linus Torvalds authored
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Jeff Garzik authored
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Jeff Garzik authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
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Martin Schwidefsky authored
Fix reboot with a disconnected 3270 console. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Heiko Carstens authored
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 <heiko.carstens@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
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:
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Eric Rossman authored
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 <edrossma@us.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
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:
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Cornelia Huck authored
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 <cohuck@de.ibm.com> Signed-off-by:
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Horst Hummel authored
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 <horst.hummel@de.ibm.com> Signed-off-by:
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