- 29 Apr, 2009 18 commits
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Robert Richter authored
[ Impact: refactor and generalize code ] Signed-off-by:
Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by:
Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-16-git-send-email-robert.richter@amd.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Robert Richter authored
Instead of using a pointer to reference to the x86 pmu we now have one single data structure that is initialized at the beginning. This saves the pointer access when using this memory. [ Impact: micro-optimization ] Signed-off-by:
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Robert Richter authored
This patch adds an error handler and changes initialization of struct x86_pmu. No functional changes. Needed for follow-on patches. [ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
[ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
[ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
This function is Intel only and not necessary for AMD cpus. [ Impact: simplify code ] Signed-off-by:
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Robert Richter authored
This function is Intel only and not necessary for AMD cpus. [ Impact: simplify code ] Signed-off-by:
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Robert Richter authored
This separates the perfcounter interrupt handler for AMD and Intel cpus. The AMD interrupt handler implementation is a follow-on patch. [ Impact: refactor and clean up code ] Signed-off-by:
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Robert Richter authored
This patch renames struct pmc_x86_ops into struct x86_pmu. It introduces a structure to describe an x86 model specific pmu (performance monitoring unit). It may contain ops and data. The new name of the structure fits better, is shorter, and thus better to handle. Where it was appropriate, names of function and variable have been changed too. [ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
This patch renames struct hw_perf_counter_ops into struct pmu. It introduces a structure to describe a cpu specific pmu (performance monitoring unit). It may contain ops and data. The new name of the structure fits better, is shorter, and thus better to handle. Where it was appropriate, names of function and variable have been changed too. [ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
Per-cpu variables needn't to be protected with cpu barriers (smp_wmb()). Protection is only needed for preemption on the same cpu (rescheduling or the nmi handler). This can be done using a compiler barrier only. [ Impact: micro-optimization ] Signed-off-by:
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Robert Richter authored
MSR reads and writes are expensive. This patch adds checks to avoid its usage where possible. [ Impact: micro-optimization on AMD CPUs ] Signed-off-by:
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Robert Richter authored
This quits hw counter initialization immediately if no cpu is detected. [ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
This is only needed for CONFIG_PERF_COUNTERS enabled. [ Impact: cleanup ] Signed-off-by:
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Robert Richter authored
X86_FEATURE_ARCH_PERFMON is an Intel hardware feature that does not work on AMD CPUs. The flag is now only used in Intel specific code (especially initialization). [ Impact: refactor code ] Signed-off-by:
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Ingo Molnar authored
Merge reason: This brach was on -rc1, refresh it to almost-rc4 to pick up the latest upstream fixes. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intelLinus Torvalds authored
* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: fix up error path leak in i915_cmdbuffer drm/i915: fix unpaired i915 device mutex on entervt failure. drm/i915: add support for G41 chipset drm/i915: Enable ASLE if present drm/i915: Unregister ACPI video driver when exiting drm/i915: Register ACPI video even when not modesetting drm/i915: fix transition to I915_TILING_NONE drm/i915: Don't let an oops get triggered from irq_emit without dma init. drm/i915: allow tiled front buffers on 965+
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (21 commits) RDMA/nes: Update iw_nes version RDMA/nes: Fix error path in nes_accept() RDMA/nes: Fix hang issues for large cluster dynamic connections RDMA/nes: Increase rexmit timeout interval RDMA/nes: Check for sequence number wrap-around RDMA/nes: Do not set apbvt entry for loopback RDMA/nes: Fix unused variable compile warning when INFINIBAND_NES_DEBUG=n RDMA/nes: Fix fw_ver in /sys RDMA/nes: Set trace length to 1 inch for SFP_D RDMA/nes: Enable repause timer for port 1 RDMA/nes: Correct CDR loop filter setting for port 1 RDMA/nes: Modify thermo mitigation to flip SerDes1 ref clk to internal RDMA/nes: Fix resource issues in nes_create_cq() and nes_destroy_cq() RDMA/nes: Remove root_256()'s unused pbl_count_256 parameter mlx4_core: Fix memory leak in mlx4_enable_msi_x() IB/mthca: Fix timeout for INIT_HCA and a few other commands RDMA/cxgb3: Don't zero QP attrs when moving to IDLE RDMA/nes: Fix bugs in nes_reg_phys_mr() RDMA/nes: Fix compiler warning at nes_verbs.c:1955 IPoIB: Disable NAPI while CQ is being drained ...
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- 28 Apr, 2009 22 commits
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Geert Uytterhoeven authored
Fix this: arch/m68k/kernel/sun3-head.S: Assembler messages: arch/m68k/kernel/sun3-head.S:32: Error: Unknown operator -- statement `__head' ignored Introduced by commit 6f335cab ("m68k: convert to use __HEAD and HEAD_TEXT macros."), which started using __HEAD without adding the appropriate include. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.dk/linux-2.6-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: bio: fix memcpy corruption in bio_copy_user_iov() hd: fix locking mg_disk: fix CONFIG_LBD=y warning mg_disk: fix locking
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git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator: Fix default constraints for fixed voltage regulators regulator/bq24022: fix bug in is_enabled function regulator/virtual: fix strings compare predicates regulator core: fix double-free in regulator_register() error path drivers/regulator: fix when type is different from REGULATOR_VOLTAGE or REGULATOR_CURRENT unreachable code in drms_uA_update() regulator: fix header file missing kernel-doc
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Roland Dreier authored
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc/ps3: Fix build error on UP powerpc/cell: Select PCI for IBM_CELL_BLADE AND CELLEB powerpc: ppc32 needs elf_read_implies_exec() powerpc/86xx: Add device_type entry to soc for ppc9a powerpc/44x: Correct memory size calculation for denali-based boards maintainers: Fix PowerPC 4xx git tree powerpc: fix for long standing bug noticed by gcc 4.4.0 Revert "powerpc: Add support for early tlbilx opcode"
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Tim Abbott authored
Commit edada399 broke the build on 64-bit powerpc because it moved the __ftr_alt_* sections of a file away from the .text section, causing link failures due to relative conditional branch targets being too far away from the branch instructions. This happens on pretty much all 64-bit powerpc configs. This change reverts commit edada399 while preserving the update from the *.refok sections to .ref.text that has happened since. Signed-off-by:
Tim Abbott <tabbott@mit.edu> Requested-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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FUJITA Tomonori authored
st driver uses blk_rq_map_user() in order to just build a request out of page frames. In this case, map_data->offset is a non zero value and iov[0].iov_base is NULL. We need to increase nr_pages for that. Cc: stable@kernel.org Signed-off-by:
FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by:
Jens Axboe <jens.axboe@oracle.com>
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Tejun Heo authored
hd dance around local irq and HD_IRQ enable without achieving much. It ends up transferring data from irq handler with both local irq and HD_IRQ disabled. The only place it actually does something is while transferring the first block of a request which it does with HD_IRQ disabled but local irq enabled. Unfortunately, the dancing is horribly broken from locking POV. IRQ and timeout handlers access block queue without grabbing the queue lock and running the driver in SMP configuration crashes the whole machine pretty quickly. Remove meaningless irq enable/disable dancing and add proper locking in issue, irq and timeout paths. Signed-off-by:Tejun Heo <tj@kernel.org>
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Bartlomiej Zolnierkiewicz authored
drivers/block/mg_disk.c: In function ‘mg_dump_status’: drivers/block/mg_disk.c:265: warning: format ‘%ld’ expects type ‘long int’, but argument 2 has type ‘sector_t’ [ Impact: kill build warning ] Cc: unsik Kim <donari75@gmail.com> Signed-off-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by:
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Tejun Heo authored
IRQ and timeout handlers call functions which expect locked queue lock without locking it. Fix it. While at it, convert 0s used as null pointer constant to NULLs. [ Impact: fix locking, cleanup ] Signed-off-by: -
Mark Brown authored
Default voltage constraints were being provided for fixed voltage regulator where board constraints were not provided but these constraints used INT_MIN as the default minimum voltage which is not a valid value since it is less than zero. Use 1uV instead. Also set the default values we set in the constraints themselves since otherwise the max_uV constraint we determine will not be stored in the actual constraint strucutre and will therefore not be used. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
Liam Girdwood <lrg@slimlogic.co.uk>
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Philipp Zabel authored
This seems to be fallout from last October's regulator core rework. It got noticed only because of recent regulator framework changes. Signed-off-by:
Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by:
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Mike Rapoport authored
Signed-off-by:
Mike Rapoport <mike@compulab.co.il> Acked-by:
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Paul Walmsley authored
During regulator registration, any error after device_register() will cause a double-free on the struct regulator_dev 'rdev'. The bug is in drivers/regulator/core.c:regulator_register(): ... scrub: device_unregister(&rdev->dev); clean: kfree(rdev); <--- rdev = ERR_PTR(ret); goto out; ... device_unregister() calls regulator_dev_release() which frees rdev. The subsequent kfree corrupts memory and causes some OMAP3 systems to oops on boot in regulator_get(). Applies against 2.6.30-rc3. Signed-off-by:
Paul Walmsley <paul@pwsan.com> Acked-by:
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Diego Liziero authored
When regulator_desc->type is something different from REGULATOR_VOLTAGE or REGULATOR_CURRENT the if should probably return ERR_PTR(-EINVAL) The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) @@ expression E; constant C; @@ ( - !E == C + E != C ) Signed-off-by:
Diego Liziero <diegoliz@gmail.com> Acked-by:
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Dan Carpenter authored
I removed the extra semi-colon and indented the return statement. The unreachable code was found by smatch (http://repo.or.cz/w/smatch.git). The patch was compile tested. regards, dan carpenter Signed-off-by:
Dan Carpenter <error27@gmail.com> Acked-by:
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Randy Dunlap authored
Add regulator header file missing kernel-doc: Warning(include/linux/regulator/driver.h:117): No description found for parameter 'set_mode' Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> cc: Liam Girdwood <lrg@slimlogic.co.uk> cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
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Peter Zijlstra authored
Mike Galbraith reported: > marge:..Documentation/perf_counter # make > CC builtin-stat.o > In file included from builtin-stat.c:71: > /usr/include/ctype.h:102: error: expected expression before ‘]’ token Remove the ctype.h include. Signed-off-by: -
Geoff Levand authored
A non-SMP version of smp_send_stop() is now included in smp.h. Remove the unneeded definition in the PS3 smp.c. Fixes build errors like these when CONFIG_SMP=n: arch/powerpc/platforms/ps3/setup.c:49: error: redefinition of 'smp_send_stop' include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here Reported-by:
Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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Michael Ellerman authored
Currently PPC_CELL_NATIVE selects PPC_OF_PLATFORM_PCI, but does not select PCI. This can lead to a config with the former and the latter disabled, which does not build. To fix this PPC_CELL_NATIVE should select PCI. However, that would force PCI on for QPACE, which also selects PPC_CELL_NATIVE. So instead move the select of PPC_OF_PLATFORM_PCI and PCI under both IBM_CELL_BLADE and CELLEB. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Kumar Gala authored
On ppc64 we implemented elf_read_implies_exec() for 32-bit binaries because old toolchains had bugs where they didn't mark program segments executable that needed to be. For some reason we didn't do this on ppc32 builds. This hadn't been an issue until commit 8d30c14c ("powerpc/mm: Rework I$/D$ coherency (v3)"), which had as a side effect that we are now enforcing execute permissions to some extent on 32-bit 4xx and Book E processors. This fixes it by defining elf_read_implies_exec on 32-bit to turn on the read-implies-exec behaviour on programs that are sufficiently old that they don't have a PT_GNU_STACK program header. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Tim Abbott authored
The old refok sections .text.init.refok .data.init.refok .exit.text.refok have been deprecated since commit 312b1485. After the other patches in this patch series nothing is put in these sections, so clean things up by eliminating all the remaining references to them. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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