Commit Graph

6249 Commits

Author SHA1 Message Date
Gleb Natapov
a1b37100d9 KVM: Reduce runnability interface with arch support code
Remove kvm_cpu_has_interrupt() and kvm_arch_interrupt_allowed() from
interface between general code and arch code. kvm_arch_vcpu_runnable()
checks for interrupts instead.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:33:13 +03:00
Marcelo Tosatti
2023a29cbe KVM: remove old KVMTRACE support code
Return EOPNOTSUPP for KVM_TRACE_ENABLE/PAUSE/DISABLE ioctls.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:33:03 +03:00
Marcelo Tosatti
46f43c6ee0 KVM: powerpc: convert marker probes to event trace
[avi: make it build]
[avi: fold trace-arch.h into trace.h]

CC: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:33:03 +03:00
Joerg Roedel
ec04b2604c KVM: Prepare memslot data structures for multiple hugepage sizes
[avi: fix build on non-x86]

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:33:02 +03:00
Gleb Natapov
988a2cae6a KVM: Use macro to iterate over vcpus.
[christian: remove unused variables on s390]

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:52 +03:00
Liu Yu
06579dd9c1 KVM: ppc: e500: Add MMUCFG and PVR emulation
Latest kernel started to use these two registers.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:47 +03:00
Liu Yu
5b7c1a2c17 KVM: ppc: e500: Directly pass pvr to guest
Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:47 +03:00
Liu Yu
0cfb50e50d KVM: ppc: e500: Move to Book-3e MMU definitions
According to commit 70fe3af840.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:47 +03:00
Stephen Rothwell
2986b8c72c KVM: powerpc: fix some init/exit annotations
Fixes a couple of warnings like this one:

WARNING: arch/powerpc/kvm/kvm-440.o(.text+0x1e8c): Section mismatch in reference from the function kvmppc_44x_exit() to the function .exit.text:kvmppc_booke_exit()
The function kvmppc_44x_exit() references a function in an exit section.
Often the function kvmppc_booke_exit() has valid usage outside the exit section
and the fix is to remove the __exit annotation of kvmppc_booke_exit.

Also add some __init annotations on obvious routines.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:44 +03:00
Avi Kivity
0ba12d1081 KVM: Move common KVM Kconfig items to new file virt/kvm/Kconfig
Reduce Kconfig code duplication.

Signed-off-by: Avi Kivity <avi@redhat.com>
2009-09-10 08:32:41 +03:00
Roderick Colenbrander
74a01180db powerpc: Fix i8259 interrupt driver kernel crash on ML510
This patch fixes a null pointer exception caused by removal of
'ack()' for level interrupts in the Xilinx interrupt driver.  A recent
change to the xilinx interrupt controller removed the ack hook for
level irqs.

Signed-off-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-05 14:58:07 -07:00
Paul Mackerras
a3df6f7d30 perf_counter/powerpc: Fix cache event codes for POWER7
I had the codes for L1 D-cache load accesses and misses swapped
around, and the wrong codes for LL-cache accesses and misses.
This corrects them.

Reported-by: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@kernel.org>
LKML-Reference: <19103.8514.709300.585484@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-03 08:41:53 +02:00
Geoff Levand
b080f187ad powerpc/ps3: Update ps3_defconfig
Update ps3_defconfig.

 o Refresh for 2.6.31.
 o Remove MTD support.
 o Add more HID drivers.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-27 13:27:59 +10:00
Geert Uytterhoeven
7b6a09f3d6 powerpc/ps3: Add missing check for PS3 to rtc-ps3 platform device registration
On non-PS3, we get:

| kernel BUG at drivers/rtc/rtc-ps3.c:36!

because the rtc-ps3 platform device is registered unconditionally in a kernel
with builtin support for PS3.

Reported-by: Sachin Sant <sachinp@in.ibm.com>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-27 13:25:46 +10:00
Linus Torvalds
d00aa6695b Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)
  perf_counter: Zero dead bytes from ftrace raw samples size alignment
  perf_counter: Subtract the buffer size field from the event record size
  perf_counter: Require CAP_SYS_ADMIN for raw tracepoint data
  perf_counter: Correct PERF_SAMPLE_RAW output
  perf tools: callchain: Fix bad rounding of minimum rate
  perf_counter tools: Fix libbfd detection for systems with libz dependency
  perf: "Longum est iter per praecepta, breve et efficax per exempla"
  perf_counter: Fix a race on perf_counter_ctx
  perf_counter: Fix tracepoint sampling to be part of generic sampling
  perf_counter: Work around gcc warning by initializing tracepoint record unconditionally
  perf tools: callchain: Fix sum of percentages to be 100% by displaying amount of ignored chains in fractal mode
  perf tools: callchain: Fix 'perf report' display to be callchain by default
  perf tools: callchain: Fix spurious 'perf report' warnings: ignore empty callchains
  perf record: Fix the -A UI for empty or non-existent perf.data
  perf util: Fix do_read() to fail on EOF instead of busy-looping
  perf list: Fix the output to not include tracepoints without an id
  perf_counter/powerpc: Fix oops on cpus without perf_counter hardware support
  perf stat: Fix tool option consistency: rename -S/--scale to -c/--scale
  perf report: Add debug help for the finding of symbol bugs - show the symtab origin (DSO, build-id, kernel, etc)
  perf report: Fix per task mult-counter stat reporting
  ...
2009-08-10 11:48:51 -07:00
Benjamin Herrenschmidt
b2f2e8fee3 powerpc/dma: pci_set_dma_mask() shouldn't fail if mask fits in RAM
On an iMac G5, the b43 driver is failing to initialise because trying to
set the dma mask to 30-bit fails. Even though there's only 512MiB of RAM
in the machine anyway:
	https://bugzilla.redhat.com/show_bug.cgi?id=514787

We should probably let it succeed if the available RAM in the system
doesn't exceed the requested limit.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-10 16:36:38 +10:00
Linus Torvalds
17d11ba149 Merge branch 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.31' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Avoid redelivery of edge interrupt before next edge
  KVM: MMU: limit rmap chain length
  KVM: ia64: fix build failures due to ia64/unsigned long mismatches
  KVM: Make KVM_HPAGES_PER_HPAGE unsigned long to avoid build error on powerpc
  KVM: fix ack not being delivered when msi present
  KVM: s390: fix wait_queue handling
  KVM: VMX: Fix locking imbalance on emulation failure
  KVM: VMX: Fix locking order in handle_invalid_guest_state
  KVM: MMU: handle n_free_mmu_pages > n_alloc_mmu_pages in kvm_mmu_change_mmu_pages
  KVM: SVM: force new asid on vcpu migration
  KVM: x86: verify MTRR/PAT validity
  KVM: PIT: fix kpit_elapsed division by zero
  KVM: Fix KVM_GET_MSR_INDEX_LIST
2009-08-09 14:58:21 -07:00
Paul Mackerras
f36a1a133a perf_counter/powerpc: Fix oops on cpus without perf_counter hardware support
If we have the powerpc perf_counter backend compiled in, but
the cpu we are running on is one where we don't support the
PMU, we currently oops in hw_perf_group_sched_in if we try to
use any counters, because ppmu is NULL in that case, and we
unconditionally dereference ppmu.

This fixes the problem by adding a check if ppmu is NULL at the
beginning of hw_perf_group_sched_in, and also at the beginning
of the other functions that get called from the perf_counter
core, i.e. hw_perf_disable, hw_perf_enable, and
hw_perf_counter_setup.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: benh@kernel.crashing.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-09 12:54:37 +02:00
Benjamin Herrenschmidt
e0d82a0a4e perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it
If the current CPU doesn't support performance counters,
cur_cpu_spec->oprofile_cpu_type can be NULL. The current
perf_counter modules don't test for that case and would thus
crash at boot time.

Bug reported by David Woodhouse.

Reported-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
LKML-Reference: <19066.48028.446975.501454@cargo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-06 13:55:09 +02:00
Stephen Rothwell
c428dcc9b9 KVM: Make KVM_HPAGES_PER_HPAGE unsigned long to avoid build error on powerpc
Eliminates this compiler warning:

arch/powerpc/kvm/../../../virt/kvm/kvm_main.c:1178: error: integer overflow in expression

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-08-05 14:51:33 +03:00
Kumar Gala
34466c5be4 powerpc: Update defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxx
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:34:01 -05:00
Martyn Welch
083e268c8b powerpc/86xx: Update GE Fanuc sbc310 default configuration
General update of defconfig including the following notable changes:
 - Enable Highmem support.
 - Support for PCMCIA based daughter card.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:28:08 -05:00
Martyn Welch
f27d4d47dc powerpc/86xx: Update defconfig for GE Fanuc's PPC9A
General update of defconfig including the following notable changes:
 - Enable GPIO access via sysfs on GE Fanuc's PPC9A.
 - Enable Highmem support.
 - Support for PCMCIA based daughter card.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:28:05 -05:00
Anton Vorontsov
1333c3d6d3 powerpc/83xx: Fix PCI IO base address on MPC837xE-RDB boards
U-Boot maps PCI IO at 0xe0300000, while current dts files specify
0xe2000000. This leads to the following oops with CONFIG_8139TOO_PIO=y.

8139too Fast Ethernet driver 0.9.28
Machine check in kernel mode.
Caused by (from SRR1=41000): Transfer error ack signal
Oops: Machine check, sig: 7 [#1]
MPC837x RDB
[...]
NIP [00000900] 0x900
LR [c0439df8] rtl8139_init_board+0x238/0x524
Call Trace:
[cf831d90] [c0439dcc] rtl8139_init_board+0x20c/0x524 (unreliable)
[cf831de0] [c043a15c] rtl8139_init_one+0x78/0x65c
[cf831e40] [c0235250] pci_call_probe+0x20/0x30
[...]

This patch fixes the issue by specifying the correct PCI IO base
address.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:18:41 -05:00
Anton Vorontsov
8a0b177f36 powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards
Sometimes (e.g. when there are no UEMs attached to a board)
fsl_pq_mdio_find_free() fails to find a spare address for a TBI PHY,
this is because get_phy_id() returns bogus 0x0000ffff values
(0xffffffff is expected), and therefore mdio bus probing fails with
the following message:

  fsl-pq_mdio: probe of e0082120.mdio failed with error -16

And obviously ethernet doesn't work after this.

This patch solves the problem by adding tbi-phy node into mdio node,
so that we won't scan for spare addresses, we'll just use a fixed one.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:16:39 -05:00
Anton Vorontsov
c4673f9a32 powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boards
Linux isn't able to detect link changes on ethernet ports that were
used by U-Boot. This is because U-Boot wrongly clears interrupt
polarity bit (INTPOL, 0x400) in the extended status register (EXT_SR,
0x1b) of Marvell PHYs.

There is no easy way for PHY drivers to know IRQ line polarity (we
could extract it from the device tree and pass it to phydevs, but
that'll be quite a lot of work), so for now just reset the PHYs to
their default states.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:14:18 -05:00
Kumar Gala
5156ddce6c powerpc/mm: Fix SMP issue with MMU context handling code
In switch_mmu_context() if we call steal_context_smp() to get a context
to use we shouldn't fall through and than call steal_context_up().  Doing
so can be problematic in that the 'mm' that steal_context_up() ends up
using will not get marked dirty in the stale_map[] for other CPUs that
might have used that mm.  Thus we could end up with stale TLB entries in
the other CPUs that can cause all kinda of havoc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-07-29 23:05:43 -05:00
Benjamin Herrenschmidt
9e1b32caa5 mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()
mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()

Upcoming paches to support the new 64-bit "BookE" powerpc architecture
will need to have the virtual address corresponding to PTE page when
freeing it, due to the way the HW table walker works.

Basically, the TLB can be loaded with "large" pages that cover the whole
virtual space (well, sort-of, half of it actually) represented by a PTE
page, and which contain an "indirect" bit indicating that this TLB entry
RPN points to an array of PTEs from which the TLB can then create direct
entries. Thus, in order to invalidate those when PTE pages are deleted,
we need the virtual address to pass to tlbilx or tlbivax instructions.

The old trick of sticking it somewhere in the PTE page struct page sucks
too much, the address is almost readily available in all call sites and
almost everybody implemets these as macros, so we may as well add the
argument everywhere. I added it to the pmd and pud variants for consistency.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: David Howells <dhowells@redhat.com> [MN10300 & FRV]
Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-27 12:10:38 -07:00
Andreas Schwab
0115cb544b powerpc: Fix another bug in move of altivec code to vector.S
When moving load_up_altivec to vector.S a typo in a comment caused a
thinko setting the wrong variable.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-15 17:41:46 +10:00
Dave Kleikamp
28477fb1ed powerpc: Fix booke user_disable_single_step()
On booke processors, gdb is seeing spurious SIGTRAPs when setting a
watchpoint.

user_disable_single_step() simply quits when the DAC is non-zero.  It should
be clearing the DBCR0_IC and DBCR0_BT bits from the dbcr0 register and
TIF_SINGLESTEP from the thread flag.

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-15 17:41:45 +10:00
Alexey Dobriyan
405f55712d headers: smp_lock.h redux
* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-12 12:22:34 -07:00
Linus Torvalds
85be928c41 Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits)
  perf report: Add "Fractal" mode output - support callchains with relative overhead rate
  perf_counter tools: callchains: Manage the cumul hits on the fly
  perf report: Change default callchain parameters
  perf report: Use a modifiable string for default callchain options
  perf report: Warn on callchain output request from non-callchain file
  x86: atomic64: Inline atomic64_read() again
  x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative()
  x86: atomic64: Improve atomic64_xchg()
  x86: atomic64: Export APIs to modules
  x86: atomic64: Improve atomic64_read()
  x86: atomic64: Code atomic(64)_read and atomic(64)_set in C not CPP
  x86: atomic64: Fix unclean type use in atomic64_xchg()
  x86: atomic64: Make atomic_read() type-safe
  x86: atomic64: Reduce size of functions
  x86: atomic64: Improve atomic64_add_return()
  x86: atomic64: Improve cmpxchg8b()
  x86: atomic64: Improve atomic64_read()
  x86: atomic64: Move the 32-bit atomic64_t implementation to a .c file
  x86: atomic64: The atomic64_t data type should be 8 bytes aligned on 32-bit too
  perf report: Annotate variable initialization
  ...
2009-07-10 14:25:03 -07:00
Peter Zijlstra
c99e6efe1b sched: INIT_PREEMPT_COUNT
Pull the initial preempt_count value into a single
definition site.

Maintainers for: alpha, ia64 and m68k, please have a look,
your arch code is funny.

The header magic is a bit odd, but similar to the KERNEL_DS
one, CPP waits with expanding these macros until the
INIT_THREAD_INFO macro itself is expanded, which is in
arch/*/kernel/init_task.c where we've already included
sched.h so we're good.

Cc: tony.luck@intel.com
Cc: rth@twiddle.net
Cc: geert@linux-m68k.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-10 14:24:05 -07:00
Anton Vorontsov
ea96025a26 powerpc: Don't use alloc_bootmem() in init_IRQ() path
This patch fixes various badnesses like this for all interrupt
controllers:

------------[ cut here ]------------
Badness at c04db9dc [verbose debug info unavailable]
NIP: c04db9dc LR: c04db9ac CTR: 00000000
REGS: c053de30 TRAP: 0700   Not tainted  (2.6.31-rc1-00432-ge69b2b5-dirty)
MSR: 00021000 <ME,CE>  CR: 22020084  XER: 00000000
TASK = c0500480[0] 'swapper' THREAD: c053c000
GPR00: 00000001 c053dee0 c0500480 00000000 00000050 00000020 3fffffff 00000000
GPR08: 00000001 c0540000 e0080080 00000000 22000084 64183600 3ff8f800 00000000
GPR16: 841b0240 449a0303 00000000 00000000 00000000 00000000 00000000 c04f5bf4
GPR24: 00000000 00000000 00000000 00000050 00000020 00000000 3fffffff 00000050
NIP [c04db9dc] alloc_arch_preferred_bootmem+0x48/0x74
LR [c04db9ac] alloc_arch_preferred_bootmem+0x18/0x74
Call Trace:
[c053dee0] [c000a5a4] __of_address_to_resource+0x44/0xd0 (unreliable)
[c053def0] [c04dba58] ___alloc_bootmem_nopanic+0x50/0x108
[c053df20] [c04dbb28] ___alloc_bootmem+0x18/0x50
[c053df30] [c04d5de0] qe_ic_init+0x5c/0x1b0
[c053df70] [c04d77b0] mpc85xx_mds_pic_init+0xb8/0x10c
[c053dfb0] [c04cf374] init_IRQ+0x28/0x3c

p.s. commit 85355bb272 ("powerpc: Fix
mpic alloc warning") missed some alloc_bootmem() instances, this is
now fixed.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:25 +10:00
Grant Likely
ad9064d5e2 powerpc: Fix spin_event_timeout() to be robust over context switches
Current implementation of spin_event_timeout can be interrupted by an
IRQ or context switch after testing the condition, but before checking
the timeout.  This can cause the loop to report a timeout when the
condition actually became true in the middle.

This patch adds one final check of the condition upon exit of the loop
if the last test of the condition was still false.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:24 +10:00
Michael Ellerman
30c5af435b powerpc: Use pr_devel() in do_dcache_icache_coherency()
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   2036     368       8    2412     96c arch/powerpc/mm/pgtable.o

size after:
   text    data     bss     dec     hex filename
   1677     248       8    1933     78d arch/powerpc/mm/pgtable.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:24 +10:00
Michael Ellerman
33875f0330 powerpc/cell: Use pr_devel() in axon_msi.c
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7083    1616       0    8699    21fb arch/powerpc/../axon_msi.o

size after:
   text    data     bss     dec     hex filename
   5772    1208       0    6980    1b44 arch/powerpc/../axon_msi.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:23 +10:00
Michael Ellerman
29e5fa59e5 powerpc: Use pr_devel() in arch/powerpc/mm/gup.c
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   3252     384       0    3636     e34 arch/powerpc/mm/gup.o

size after:
   text    data     bss     dec     hex filename
   2576      96       0    2672     a70 arch/powerpc/mm/gup.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:23 +10:00
Michael Ellerman
651e2dd2a1 powerpc: Cleanup & use pr_devel() in arch/powerpc/mm/slb.c
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   3261     416       4    3681     e61 arch/powerpc/mm/slb.o

size after:
   text    data     bss     dec     hex filename
   2861     248       4    3113     c29 arch/powerpc/mm/slb.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:22 +10:00
Huang Weiyi
3665ee36fa powerpc/perf_counter: Remove duplicated #include
Remove duplicated #include('s) in
  arch/powerpc/kernel/mpc7450-pmu.c
  arch/powerpc/kernel/ppc970-pmu.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:22 +10:00
Michael Ellerman
a1ac38ab98 powerpc: Use pr_devel() in arch/powerpc/mm/mmu_context_nohash.c
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text	   data	    bss	    dec	    hex	filename
   1508	     48	     28	   1584	    630	powerpc/mm/mmu_context_nohash.o

size after:
   text	   data	    bss	    dec	    hex	filename
   1088	      0	     28	   1116	    45c	powerpc/mm/mmu_context_nohash.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:22 +10:00
Michael Ellerman
b69e9e931d powerpc/pseries: Use pr_devel() in xics.c
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7720    5488     296   13504    34c0 platforms/pseries/xics.o

size after:
   text    data     bss     dec     hex filename
   7535	   5456	    296	  13287	   33e7	platforms/pseries/xics.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:21 +10:00
Joe Perches
d258e64ef5 powerpc: Remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:21 +10:00
Michael Ellerman
551a232c87 powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routines
pr_debug() can now result in code being generated even when DEBUG
is not defined. That's not really desirable in some places.

In particular, pSeries_lpar_hpte_insert() goes from 185 instructions
to 77 instructions as a result of this patch. Luckily that code
isn't called very often ...

With CONFIG_DYNAMIC_DEBUG=y:

size before:
   text    data     bss     dec     hex filename
   7284    1552     296    9132    23ac platforms/pseries/lpar.o

size after:
   text    data     bss     dec     hex filename
   5806    1096     296    7198    1c1e platforms/pseries/lpar.o

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08 13:50:21 +10:00
Benjamin Herrenschmidt
01cc82623a Merge commit 'jwb/merge' into merge 2009-07-08 13:49:38 +10:00
Josh Boyer
a22ebd069d powerpc/44x: Fix build error with -Werror for Warp platform
With -Werror enabled during the build, the warp.c file fails to build
due to the temp_isr function not containing a return statement.  This
fixes the build error and documents that the function never returns.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-05 10:02:15 -04:00
Sean MacLennan
ba703e1a7a powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keep
The GPIO LEDS driver now has a default state of "keep".  Update the Warp DTS
and platform file to take advantage of this new state.  This removes the
hardcoding of the two LEDs on the Warp.

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-06 08:56:01 -04:00
Sean MacLennan
7c3a742a86 powerpc/44x: Update Warp defconfig
* Enable GPIO LEDS and LED triggers
* Move to SLUB
* Enable HOTPLUG
* Enable timestamps on printks
* Enable UBIFS
* Enable in-kernel config

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-06 08:53:16 -04:00
Anton Blanchard
0a456fc58f powerpc/perf_counter: Enable alternate PR/HV bits for POWER7
POWER7 has the same PR/HV bit layout as POWER6, so set the flag.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: a.p.zijlstra@chello.nl
Cc: benh@kernel.crashing.org
LKML-Reference: <20090701030701.GI3563@kryten>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-01 10:20:28 +02:00
Linus Torvalds
55bcab4695 Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (47 commits)
  perf report: Add --symbols parameter
  perf report: Add --comms parameter
  perf report: Add --dsos parameter
  perf_counter tools: Adjust only prelinked symbol's addresses
  perf_counter: Provide a way to enable counters on exec
  perf_counter tools: Reduce perf stat measurement overhead/skew
  perf stat: Use percentages for scaling output
  perf_counter, x86: Update x86_pmu after WARN()
  perf stat: Micro-optimize the code: memcpy is only required if no event is selected and !null_run
  perf stat: Improve output
  perf stat: Fix multi-run stats
  perf stat: Add -n/--null option to run without counters
  perf_counter tools: Remove dead code
  perf_counter: Complete counter swap
  perf report: Print sorted callchains per histogram entries
  perf_counter tools: Prepare a small callchain framework
  perf record: Fix unhandled io return value
  perf_counter tools: Add alias for 'l1d' and 'l1i'
  perf-report: Add bare minimum PERF_EVENT_READ parsing
  perf-report: Add modes for inherited stats and no-samples
  ...
2009-06-30 19:02:59 -07:00