- 18 Oct, 2010 3 commits
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Seth Heasley authored
This patch updates the defines for Intel devices in include/linux/pci_ids.h, referenced in arch/x86/pci/irq.c and drivers/i2c/busses/i2c-i801.c, reflecting approved legal branding, and using fuller code-names for products under development. Acked-by:
Jean Delvare <khali@linux-fr.org> Signed-off-by:
Seth Heasley <seth.heasley@intel.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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matt mooney authored
Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by:
matt mooney <mfm@muteddisk.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Hidetoshi Seto authored
These are already defined in pcilib's pci/header.h but not in kernel's linux/pci_regs.h. Copy them to avoid using magic numbers. Signed-off-by:
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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- 15 Oct, 2010 11 commits
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Anders Wallin authored
Signed-off-by:
Anders Wallin <anders.wallin@windriver.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Seth Heasley authored
This patch adds the LPC Controller DeviceIDs for the Intel Patsburg PCH. Signed-off-by:
Seth Heasley <seth.heasley@intel.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Daniel Drake authored
This configuration type override is for XO-1 only and must not happen on XO-1.5. Acked-by:
Andres Salomon <dilinger@queued.net> Signed-off-by:
Daniel Drake <dsd@laptop.org> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Neil Horman authored
A long time ago I worked on a RHEL5 bug in which kdump hung during boot on a set of systems. The systems hung because they never received timer interrupts during calibrate_delay. These systems also all had Opteron processors on a hypertransport bus, bridged to a pci bus via an Nvidia MCP55 northbridge chip. After much wrangling I managed to learn from Nvidia that they have an undocumented register in some versions of that chip which control how legacy interrupts are send to the cpu complex when the ioapic isn't active. Nvidia defaults this register to only send legacy interrupts to the BSP, so if kdump happens to boot on an AP, we never get timer interrupts and boom. I had initially used this quirk as a workaround, with my intent being to move apic initalization to an earlier point in the boot process, so the setting of the register would be irrelevant. Given the work involved in doing that however, the fragile nature of the apic initalization code, and the fact that, over the 2 years since we found this bug, the MCP55 is the only chip which seems to have this issue, I've figure at this point its likely safer to just carry the quirk around. By setting the referenced bits in this hidden register, interrupts will be broadcast to all cpus when the ioapic isn't active on the above described systems. Acked-by:
Simon Horman <horms@verge.net.au> Acked-by:
Vivek Goyal <vgoyal@redhat.com> Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Rafael J. Wysocki authored
There is a design issue related to PCIe AER and _OSC that the BIOS may be asked to grant control of the AER service even if some Hardware Error Source Table (HEST) entries contain information meaning that the BIOS really should control it. Namely, pcie_port_acpi_setup() calls pcie_aer_get_firmware_first() that determines whether or not the AER service should be controlled by the BIOS on the basis of the HEST information for the given PCIe port. The BIOS is asked to grant control of the AER service for a PCIe Root Complex if pcie_aer_get_firmware_first() returns 'false' for at least one root port in that complex, even if all of the other root ports' HEST entries have the FIRMWARE_FIRST flag set (and none of them has the GLOBAL flag set). However, if the AER service is controlled by the kernel, that may interfere with the BIOS' handling of the error sources having the FIRMWARE_FIRST flag. Moreover, there may be PCIe endpoints that have the FIRMWARE_FIRST flag set in HEST and are attached to the root ports in question, in which case it also may be unsafe to ask the BIOS for control of the AER service. For this reason, introduce a function checking if there's at least one PCIe-related HEST entry with the FIRMWARE_FIRST flag set and disable the native AER service altogether if this function returns 'true'. Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Stephen Hemminger authored
The name field in pci_driver should be const, it is not modified by PCI subsystem. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Thomas Gleixner authored
Get rid of init_MUTEX[_LOCKED]() and use sema_init() instead. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Bill Pemberton authored
quiet the warning about use of uninitialized e_src in aer_isr() e_src is initialized by get_e_source() Signed-off-by:
Bill Pemberton <wfp5p@virginia.edu> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Arnd Bergmann authored
All operations in the pci procfs ioctl functions are atomic, so no lock is needed here. Also add a compat_ioctl method, since all the commands are compatible in 32 bit mode. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Tejun Heo <tj@kernel.org> Cc: linux-pci@vger.kernel.org Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Julia Lawall authored
Indent the branch of an if. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable braces4@ position p1,p2; statement S1,S2; @@ ( if (...) { ... } | if (...) S1@p1 S2@p2 ) @script:python@ p1 << r.p1; p2 << r.p2; @@ if (p1[0].column == p2[0].column): cocci.print_main("branch",p1) cocci.print_secs("after",p2) // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org>
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Linus Torvalds authored
If you build aout support as a module, you'll want these exported. Reported-by:
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 14 Oct, 2010 4 commits
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Linus Torvalds authored
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Linus Torvalds authored
Tony Luck reports that the addition of the access_ok() check in commit 0eead9ab ("Don't dump task struct in a.out core-dumps") broke the ia64 compile due to missing the necessary header file includes. Rather than add yet another include (<asm/unistd.h>) to make everything happy, just uninline the silly core dump helper functions and move the bodies to fs/exec.c where they make a lot more sense. dump_seek() in particular was too big to be an inline function anyway, and none of them are in any way performance-critical. And we really don't need to mess up our include file headers more than they already are. Reported-and-tested-by:
Tony Luck <tony.luck@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: ehea: Fix a checksum issue on the receive path net: allow FEC driver to use fixed PHY support tg3: restore rx_dropped accounting b44: fix carrier detection on bind net: clear heap allocations for privileged ethtool actions NET: wimax, fix use after free ATM: iphase, remove sleep-inside-atomic ATM: mpc, fix use after free ATM: solos-pci, remove use after free net/fec: carrier off initially to avoid root mount failure r8169: use device model DMA API r8169: allocate with GFP_KERNEL flag when able to sleep
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Linus Torvalds authored
akiphie points out that a.out core-dumps have that odd task struct dumping that was never used and was never really a good idea (it goes back into the mists of history, probably the original core-dumping code). Just remove it. Also do the access_ok() check on dump_write(). It probably doesn't matter (since normal filesystems all seem to do it anyway), but he points out that it's normally done by the VFS layer, so ... [ I suspect that we should possibly do "vfs_write()" instead of calling ->write directly. That also does the whole fsnotify and write statistics thing, which may or may not be a good idea. ] And just to be anal, do this all for the x86-64 32-bit a.out emulation code too, even though it's not enabled (and won't currently even compile) Reported-by:
akiphie <akiphie@lavabit.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 13 Oct, 2010 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_txLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: ioat2: fix performance regression
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git://linux-nfs.org/~bfields/linuxLinus Torvalds authored
* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux: nfsd: fix BUG at fs/nfsd/nfsfh.h:199 on unlink
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Linus Torvalds authored
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: ring-buffer: Fix typo of time extends per page perf, MIPS: Support cross compiling of tools/perf for MIPS perf: Fix incorrect copy_from_user() usage
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: relax ioremap prohibition (309caa9c) for -final and -stable ARM: 6440/1: ep93xx: DMA: fix channel_disable cpuimx27: fix i2c bus selection cpuimx27: fix compile when ULPI is selected ARM: 6435/1: Fix HWCAP_TLS flag for ARM11MPCore/Cortex-A9 ARM: 6436/1: AT91: Fix power-saving in idle-mode on 926T processors ARM: fix section mismatch warnings in Versatile Express ARM: 6412/1: kprobes-decode: add support for MOVW instruction ARM: 6419/1: mmu: Fix MT_MEMORY and MT_MEMORY_NONCACHED pte flags ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption
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Linus Torvalds authored
Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: omap: iommu-load cam register before flushing the entry
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: Silent spurious error message drm/radeon/kms: fix bad cast/shift in evergreen.c drm/radeon/kms: make TV/DFP table info less verbose drm/radeon/kms: leave certain CP int bits enabled drm/radeon/kms: avoid corner case issue with unmappable vram V2
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Linus Torvalds authored
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, numa: For each node, register the memory blocks actually used x86, AMD, MCE thresholding: Fix the MCi_MISCj iteration order x86, mce, therm_throt.c: Fix missing curly braces in error handling logic
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Dan Williams authored
Commit 07934481 "DMAENGINE: generic channel status v2" changed the interface for how dma channel progress is retrieved. It inadvertently exported an internal helper function ioat_tx_status() instead of ioat_dma_tx_status(). The latter polls the hardware to get the latest completion state, while the helper just evaluates the current state without touching hardware. The effect is that we end up waiting for completion timeouts or descriptor allocation errors before the completion state is updated. iperf (before fix): [SUM] 0.0-41.3 sec 364 MBytes 73.9 Mbits/sec iperf (after fix): [SUM] 0.0- 4.5 sec 499 MBytes 940 Mbits/sec This is a regression starting with 2.6.35. Cc: <stable@kernel.org> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Linus Walleij <linus.walleij@stericsson.com> Cc: Maciej Sosnowski <maciej.sosnowski@intel.com> Reported-by:
Richard Scobie <richard@sauce.co.nz> Signed-off-by:
Dan Williams <dan.j.williams@intel.com>
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Breno Leitao authored
Currently we set all skbs with CHECKSUM_UNNECESSARY, even those whose protocol we don't know. This patch just add the CHECKSUM_COMPLETE tag for non TCP/UDP packets. Reported-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by:
Jay Vosburgh <fubar@us.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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J. Bruce Fields authored
As of commit 43a9aa64 "NFSD: Fill in WCC data for REMOVE, RMDIR, MKNOD, and MKDIR", we sometimes call fh_unlock on a filehandle that isn't fully initialized. We should fix up the callers, but as a quick fix it is also sufficient just to remove this assertion. Reported-by:
Marius Tolzmann <tolzmann@molgen.mpg.de> Cc: Chuck Lever <chuck.lever@oracle.com> Signed-off-by:
J. Bruce Fields <bfields@redhat.com>
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Greg Ungerer authored
At least one board using the FEC driver does not have a conventional PHY attached to it, it is directly connected to a somewhat simple ethernet switch (the board is the SnapGear/LITE, and the attached 4-port ethernet switch is a RealTek RTL8305). This switch does not present the usual register interface of a PHY, it presents nothing. So a PHY scan will find nothing - it finds ID's of 0 for each PHY on the attached MII bus. After the FEC driver was changed to use phylib for supporting PHYs it no longer works on this particular board/switch setup. Add code support to use a fixed phy if no PHY is found on the MII bus. This is based on the way the cpmac.c driver solved this same problem. Signed-off-by:
Greg Ungerer <gerg@uclinux.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 12 Oct, 2010 11 commits
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Russell King authored
... but produce a big warning about the problem as encouragement for people to fix their drivers. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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Mika Westerberg authored
When channel_disable() is called, it disables per channel interrupts and waits until channels state becomes STATE_STALL, and then disables the channel. Now, if the DMA transfer is disabled while the channel is in STATE_NEXT we will not wait anything and disable the channel immediately. This seems to cause weird data corruption for example in audio transfers. Fix is to wait while we are in STATE_NEXT or STATE_ON and only then disable the channel. Signed-off-by:
Mika Westerberg <mika.westerberg@iki.fi> Acked-by:
Ryan Mallon <ryan@bluewatersys.com> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
* 'kvm-updates/2.6.36' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Move TSC reset out of vmcb_init KVM: x86: Fix SVM VMCB reset
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Steven Rostedt authored
Time stamps for the ring buffer are created by the difference between two events. Each page of the ring buffer holds a full 64 bit timestamp. Each event has a 27 bit delta stamp from the last event. The unit of time is nanoseconds, so 27 bits can hold ~134 milliseconds. If two events happen more than 134 milliseconds apart, a time extend is inserted to add more bits for the delta. The time extend has 59 bits, which is good for ~18 years. Currently the time extend is committed separately from the event. If an event is discarded before it is committed, due to filtering, the time extend still exists. If all events are being filtered, then after ~134 milliseconds a new time extend will be added to the buffer. This can only happen till the end of the page. Since each page holds a full timestamp, there is no reason to add a time extend to the beginning of a page. Time extends can only fill a page that has actual data at the beginning, so there is no fear that time extends will fill more than a page without any data. When reading an event, a loop is made to skip over time extends since they are only used to maintain the time stamp and are never given to the caller. As a paranoid check to prevent the loop running forever, with the knowledge that time extends may only fill a page, a check is made that tests the iteration of the loop, and if the iteration is more than the number of time extends that can fit in a page a warning is printed and the ring buffer is disabled (all of ftrace is also disabled with it). There is another event type that is called a TIMESTAMP which can hold 64 bits of data in the theoretical case that two events happen 18 years apart. This code has not been implemented, but the name of this event exists, as well as the structure for it. The size of a TIMESTAMP is 16 bytes, where as a time extend is only 8 bytes. The macro used to calculate how many time extends can fit on a page used the TIMESTAMP size instead of the time extend size cutting the amount in half. The following test case can easily trigger the warning since we only need to have half the page filled with time extends to trigger the warning: # cd /sys/kernel/debug/tracing/ # echo function > current_tracer # echo 'common_pid < 0' > events/ftrace/function/filter # echo > trace # echo 1 > trace_marker # sleep 120 # cat trace Enabling the function tracer and then setting the filter to only trace functions where the process id is negative (no events), then clearing the trace buffer to ensure that we have nothing in the buffer, then write to trace_marker to add an event to the beginning of a page, sleep for 2 minutes (only 35 seconds is probably needed, but this guarantees the bug), and then finally reading the trace which will trigger the bug. This patch fixes the typo and prevents the false positive of that warning. Reported-by:
Hans J. Koch <hjk@linutronix.de> Tested-by:
Hans J. Koch <hjk@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Stable Kernel <stable@kernel.org> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Deng-Cheng Zhu authored
Changes: v4: Fix the cosmetic issue of redundant dot-ops v3: Change rmb() to use SYNC v2: Include mips unistd.h and define rmb()/cpu_relax() in tools/perf/perf.h Signed-off-by:
Deng-Cheng Zhu <dengcheng.zhu@gmail.com> Acked-by:
Ralf Baechle <ralf@linux-mips.org> Cc: David Daney <ddaney@caviumnetworks.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Jean Delvare authored
I see the following error message in my kernel log from time to time: radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait radeon 0000:07:00.0: ffff88007c334000 reserve failed for wait After investigation, it turns out that there's nothing to be afraid of and everything works as intended. So remove the spurious log message. Signed-off-by:
Jean Delvare <khali@linux-fr.org> Reviewed-by:
Jerome Glisse <jglisse@redhat.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
Missing parens. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=30718Reported-by:
Dave Gilbert <freedesktop@treblig.org> Signed-off-by:
Alex Deucher <alexdeucher@gmail.com> Reviewed-by:
Matt Turner <mattst88@gmail.com> Cc: stable@kernel.org Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
Make TV standard and DFP table revisions debug only. Signed-off-by:
Alex Deucher <alexdeucher@gmail.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
These bits are used for internal communication and should be left enabled. This may fix s/r issues on some systems. Signed-off-by:
Alex Deucher <alexdeucher@gmail.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Jerome Glisse authored
We should not allocate any object into unmappable vram if we have no means to access them which on all GPU means having the CP running and on newer GPU having the blit utility working. This patch limit the vram allocation to visible vram until we have acceleration up and running. Note that it's more than unlikely that we run into any issue related to that as when acceleration is not woring userspace should allocate any object in vram beside front buffer which should fit in visible vram. V2 use real_vram_size as mc_vram_size could be bigger than the actual amount of vram [airlied: fixup r700_cp_stop case] Signed-off-by:
Jerome Glisse <jglisse@redhat.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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