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2012-03-28Disintegrate asm/system.h for MN10300David Howells
Disintegrate asm/system.h for MN10300. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-am33-list@redhat.com
2012-03-28Disintegrate asm/system.h for MIPSDavid Howells
Disintegrate asm/system.h for MIPS. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> cc: linux-mips@linux-mips.org
2012-03-28Disintegrate asm/system.h for MicroblazeDavid Howells
Disintegrate asm/system.h for Microblaze. Not compiled. Signed-off-by: David Howells <dhowells@redhat.com> cc: microblaze-uclinux@itee.uq.edu.au
2012-03-28Disintegrate asm/system.h for M68KDavid Howells
Disintegrate asm/system.h for M68K. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Greg Ungerer <gerg@uclinux.org> cc: linux-m68k@lists.linux-m68k.org
2012-03-28m68k: Fix xchg/cmpxchg to fail to link if given an inappropriate pointerDavid Howells
Fix the m68k versions of xchg() and cmpxchg() to fail to link if given an inappropriately sized pointer rather than BUG()'ing at runtime. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Greg Ungerer <gerg@uclinux.org> cc: linux-m68k@lists.linux-m68k.org
2012-03-28Disintegrate asm/system.h for M32RDavid Howells
Disintegrate asm/system.h for M32R. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-m32r@ml.linux-m32r.org
2012-03-28Disintegrate asm/system.h for IA64David Howells
Disintegrate asm/system.h for IA64. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Tony Luck <tony.luck@intel.com> cc: linux-ia64@vger.kernel.org
2012-03-28Disintegrate asm/system.h for HexagonDavid Howells
Disintegrate asm/system.h for Hexagon. Not compiled. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Richard Kuo <rkuo@codeaurora.org> cc: linux-hexagon@vger.kernel.org
2012-03-28Disintegrate asm/system.h for H8300David Howells
Disintegrate asm/system.h for H8300. Signed-off-by: David Howells <dhowells@redhat.com> cc: Yoshinori Sato <ysato@users.sourceforge.jp>
2012-03-28Disintegrate asm/system.h for FRVDavid Howells
Disintegrate asm/system.h for FRV. Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28Disintegrate asm/system.h for CRISDavid Howells
Disintegrate asm/system.h for CRIS. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> cc: linux-cris-kernel@axis.com
2012-03-28Disintegrate asm/system.h for C6XDavid Howells
Disintegrate asm/system.h for C6X. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Mark Salter <msalter@redhat.com> cc: linux-c6x-dev@linux-c6x.org
2012-03-28Disintegrate asm/system.h for AVR32David Howells
Disintegrate asm/system.h for AVR32. This has not been compiled at all. Signed-off-by: David Howells <dhowells@redhat.com> cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
2012-03-28Disintegrate asm/system.h for ARMDavid Howells
Disintegrate asm/system.h for ARM. Signed-off-by: David Howells <dhowells@redhat.com> cc: Russell King <linux@arm.linux.org.uk> cc: linux-arm-kernel@lists.infradead.org
2012-03-28ARM: move CP15 definitions to separate header fileRussell King
Avoid namespace conflicts with drivers over the CP15 definitions by moving CP15 related prototypes and definitions to a private header file. Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> [Tegra] Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> [EP93xx] Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28Disintegrate asm/system.h for AlphaDavid Howells
Disintegrate asm/system.h for Alpha. Signed-off-by: David Howells <dhowells@redhat.com> cc: linux-alpha@vger.kernel.org
2012-03-28Disintegrate asm/system.h for X86David Howells
Disintegrate asm/system.h for X86. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com> cc: x86@kernel.org
2012-03-28Merge tag 'writeback-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux Pull trivial writeback fixes from Wu Fengguang: "They've been tested in linux-next for 20 days actually." * tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: Remove outdated comment fs: Remove bogus wait in write_inode_now()
2012-03-28Merge tag 'ext4_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 updates for 3.4 from Ted Ts'o: "Ext4 commits for 3.3 merge window; mostly cleanups and bug fixes The changes to export dirty_writeback_interval are from Artem's s_dirt cleanup patch series. The same is true of the change to remove the s_dirt helper functions which never got used by anyone in-tree. I've run these changes by Al Viro, and am carrying them so that Artem can more easily fix up the rest of the file systems during the next merge window. (Originally we had hopped to remove the use of s_dirt from ext4 during this merge window, but his patches had some bugs, so I ultimately ended dropping them from the ext4 tree.)" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (66 commits) vfs: remove unused superblock helpers mm: export dirty_writeback_interval ext4: remove useless s_dirt assignment ext4: write superblock only once on unmount ext4: do not mark superblock as dirty unnecessarily ext4: correct ext4_punch_hole return codes ext4: remove restrictive checks for EOFBLOCKS_FL ext4: always set then trimmed blocks count into len ext4: fix trimmed block count accunting ext4: fix start and len arguments handling in ext4_trim_fs() ext4: update s_free_{inodes,blocks}_count during online resize ext4: change some printk() calls to use ext4_msg() instead ext4: avoid output message interleaving in ext4_error_<foo>() ext4: remove trailing newlines from ext4_msg() and ext4_error() messages ext4: add no_printk argument validation, fix fallout ext4: remove redundant "EXT4-fs: " from uses of ext4_msg ext4: give more helpful error message in ext4_ext_rm_leaf() ext4: remove unused code from ext4_ext_map_blocks() ext4: rewrite punch hole to use ext4_ext_remove_space() jbd2: cleanup journal tail after transaction commit ...
2012-03-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates for 3.4-rc1 from Sage Weil: "Alex has been busy. There are a range of rbd and libceph cleanups, especially surrounding device setup and teardown, and a few critical fixes in that code. There are more cleanups in the messenger code, virtual xattrs, a fix for CRC calculation/checks, and lots of other miscellaneous stuff. There's a patch from Amon Ott to make inos behave a bit better on 32-bit boxes, some decode check fixes from Xi Wang, and network throttling fix from Jim Schutt, and a couple RBD fixes from Josh Durgin. No new functionality, just a lot of cleanup and bug fixing." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (65 commits) rbd: move snap_rwsem to the device, rename to header_rwsem ceph: fix three bugs, two in ceph_vxattrcb_file_layout() libceph: isolate kmap() call in write_partial_msg_pages() libceph: rename "page_shift" variable to something sensible libceph: get rid of zero_page_address libceph: only call kernel_sendpage() via helper libceph: use kernel_sendpage() for sending zeroes libceph: fix inverted crc option logic libceph: some simple changes libceph: small refactor in write_partial_kvec() libceph: do crc calculations outside loop libceph: separate CRC calculation from byte swapping libceph: use "do" in CRC-related Boolean variables ceph: ensure Boolean options support both senses libceph: a few small changes libceph: make ceph_tcp_connect() return int libceph: encapsulate some messenger cleanup code libceph: make ceph_msgr_wq private libceph: encapsulate connection kvec operations libceph: move prepare_write_banner() ...
2012-03-28Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext3, UDF, and quota fixes from Jan Kara: "A couple of ext3 & UDF fixes and also one improvement in quota locking." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext3: fix start and len arguments handling in ext3_trim_fs() udf: Fix deadlock in udf_release_file() udf: Fix file entry logicalBlocksRecorded udf: Fix handling of i_blocks quota: Make quota code not call tty layer with dqptr_sem held udf: Init/maintain file entry checkpoint field ext3: Update ctime in ext3_splice_branch() only when needed ext3: Don't call dquot_free_block() if we don't update anything udf: Remove unnecessary OOM messages
2012-03-28Merge tag 'for-linus-3.4-merge-window' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs Pull 9p changes for the 3.4 merge window from Eric Van Hensbergen. * tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: statfs should not override server f_type net/9p: handle flushed Tclunk/Tremove net/9p: don't allow Tflush to be interrupted
2012-03-28vfs: fix d_ancestor() case in d_materialize_uniqueMichel Lespinasse
In d_materialise_unique() there are 3 subcases to the 'aliased dentry' case; in two subcases the inode i_lock is properly released but this does not occur in the -ELOOP subcase. This seems to have been introduced by commit 1836750115f2 ("fix loop checks in d_materialise_unique()"). Signed-off-by: Michel Lespinasse <walken@google.com> Cc: stable@vger.kernel.org # v3.0+ [ Added a comment, and moved the unlock to where we generate the -ELOOP, which seems to be more natural. You probably can't actually trigger this without a buggy network file server - d_materialize_unique() is for finding aliases on non-local filesystems, and the d_ancestor() case is for a hardlinked directory loop. But we should be robust in the case of such buggy servers anyway. ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28x86, tls: Off by one limit checkDan Carpenter
These are used as offsets into an array of GDT_ENTRY_TLS_ENTRIES members so GDT_ENTRY_TLS_ENTRIES is one past the end of the array. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: http://lkml.kernel.org/r/20120324075250.GA28258@elgon.mountain Cc: <stable@vger.kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-03-28nfsd: fix NULL pointer dereference in cld_pipe_downcallJeff Layton
If we find that "cup" is NULL in this case, then we obviously don't want to dereference it. What we really want to print in this case is the xid that we copied off earlier. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-03-28nfsd4: memory corruption in numeric_name_to_id()Dan Carpenter
"id" is type is a uid_t (32 bits) but on 64 bit systems strict_strtoul() modifies 64 bits of data. We should use kstrtouint() instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-03-28drm/radeon: Only warn if the intra-domain offset actually exceeds the limit.Michel Dänzer
Fixes spurious warnings. Tested-by: Dave Jones <davej@redhat.com> Tested-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-03-28cpusets: Remove an unused variableDan Carpenter
We don't use "cpu" any more after 2baab4e904 "sched: Fix select_fallback_rq() vs cpu_active/cpu_online". Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Paul Menage <paul@paulmenage.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20120328104608.GD29022@elgon.mountain Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-03-28x86/ioapic: Add io_apic_ops driver layer to allow interceptionJeremy Fitzhardinge
Xen dom0 needs to paravirtualize IO operations to the IO APIC, so add a io_apic_ops for it to intercept. Do this as ops structure because there's at least some chance that another paravirtualized environment may want to intercept these. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: jwboyer@redhat.com Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/1332385090-18056-2-git-send-email-konrad.wilk@oracle.com [ Made all the affected code easier on the eyes ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-03-27Merge branch 'fixes-non-critical' into next/drivers2Olof Johansson
fixes-non-critical has already been merged upstream, and there are a handful of annoying context conflicts that it makes sense to resolve before sending up. Part of this is because there was parallel development going on between more urgent fixes and general driver fixups, it should settle down once the lpc32xx platform reaches a more steady state. Conflicts: arch/arm/mach-lpc32xx/clock.c arch/arm/mach-lpc32xx/common.h Signed-off-by: Olof Johansson <olof@lixom.net>
2012-03-27NFSv4: Minor cleanups for nfs4_handle_exception and nfs4_async_handle_errorTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-03-27NFSv4.1: Fix layoutcommit error handlingTrond Myklebust
Firstly, task->tk_status will always return negative error values, so the current tests for 'NFS4ERR_DELEG_REVOKED' etc. are all being ignored. Secondly, clean up the code so that we only need to test task->tk_status once! Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2012-03-27NFSv4: Fix two infinite loops in the mount codeTrond Myklebust
We can currently loop forever in nfs4_lookup_root() and in nfs41_proc_secinfo_no_name(), if the first iteration returns a NFS4ERR_DELAY or something else that causes exception.retry to get set. Reported-by: Weston Andros Adamson <dros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@vger.kernel.org
2012-03-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 patches part 2 from Martin Schwidefsky: "Some minor improvements and one additional feature for the 3.4 merge window: Hendrik added perf support for the s390 CPU counters." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: [S390] register cpu devices for SMP=n [S390] perf: add support for s390x CPU counters [S390] oprofile: Allow multiple users of the measurement alert interrupt [S390] qdio: log all adapter characteristics [S390] Remove unncessary export of arch_pick_mmap_layout
2012-03-27Merge branch 'for-linus-3.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML changes from Richard Weinberger: "Mostly bug fixes and cleanups" * 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (35 commits) um: Update defconfig um: Switch to large mcmodel on x86_64 MTD: Relax dependencies um: Wire CONFIG_GENERIC_IO up um: Serve io_remap_pfn_range() Introduce CONFIG_GENERIC_IO um: allow SUBARCH=x86 um: most of the SUBARCH uses can be killed um: deadlock in line_write_interrupt() um: don't bother trying to rebuild CHECKFLAGS for USER_OBJS um: use the right ifdef around exports in user_syms.c um: a bunch of headers can be killed by using generic-y um: ptrace-generic.h doesn't need user.h um: kill HOST_TASK_PID um: remove pointless include of asm/fixmap.h from asm/pgtable.h um: asm-offsets.h might as well come from underlying arch... um: merge processor_{32,64}.h a bit... um: switch close_chan() to struct line um: race fix: initialize delayed_work *before* registering IRQ um: line->have_irq is never checked... ...
2012-03-27Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
Pull arch/microblaze fixes from Michal Simek * 'next' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Handle TLB skip size dynamically microblaze: Introduce TLB skip size microblaze: Improve TLB calculation for small systems microblaze: Extend space for compiled-in FDT to 32kB microblaze: Clear all MSR flags on the first kernel instruction microblaze: Use node name instead of compatible string microblaze: Fix mapin_ram function microblaze: Highmem support microblaze: Use active regions microblaze: Show more detailed information about memory microblaze: Introduce fixmap microblaze: mm: Fix lowmem max memory size limits microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL microblaze: trivial: Fix typo fault in timer.c microblaze: Use vsprintf extention %pf with builtin_return_address microblaze: Add PVR version string for MB 8.20.b and 8.30.a microblaze: Fix makefile to work with latest toolchain microblaze: Fix typo in early_printk.c
2012-03-27Merge branch 'platforms' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull ARM platform updates from Russell King: "This covers platform stuff for platforms I have a direct interest in (iow, I have the hardware). Essentially: - as we no longer support any other Acorn platforms other than RiscPC anymore, we can collect all that code into mach-rpc. - convert Acorn expansion card stuff to use IRQ allocation functions, and get rid of NO_IRQ from there. - cleanups to the ebsa110 platform to move some private stuff out of its header files. - large amount of SA11x0 updates: - conversion of private DMA implementation to DMA engine support (this actually gives us greater flexibility in drivers over the old API.) - re-worked ucb1x00 updates - convert to genirq, remove sa11x0 dependencies, fix various minor issues - move platform specific sa11x0 framebuffer data into platform files in arch/arm instead of keeping this in the driver itself - update sa11x0 IrDA driver for DMA engine, and allow it to use DMA for SIR transmissions as well as FIR - rework sa1111 support for genirq, and irq allocation - fix sa1111 IRQ support so it works again - use sparse IRQ support After this, I have one more pull request remaining from my current set, which I think is going to be the most problematical as it generates 8 conflicts." Fixed up the trivial conflict in arch/arm/mach-rpc/Makefile as per Russell. * 'platforms' of git://git.linaro.org/people/rmk/linux-arm: (125 commits) ARM: 7343/1: sa11x0: convert to sparse IRQ ARM: 7342/2: sa1100: prepare for sparse irq conversion ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h ARM: sa11x0: remove unused DMA controller definitions ARM: sa11x0: remove old SoC private DMA driver USB: sa1111: add hcd .reset method USB: sa1111: add OHCI shutdown methods USB: sa1111: reorganize ohci-sa1111.c USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__) USB: sa1111: sparse and checkpatch cleanups ARM: sa11x0: don't static map sa1111 ARM: sa1111: use dev_err() rather than printk() ARM: sa1111: cleanup sub-device registration and unregistration ARM: sa1111: only setup DMA for DMA capable devices ARM: sa1111: register sa1111 devices with dmabounce in bus notifier ARM: sa1111: move USB interface register definitions to ohci-sa1111.c ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c ARM: sa1111: delete unused physical GPIO register definitions ...
2012-03-28powerpc/perf: Fix instruction address sampling on 970 and Power4Benjamin Herrenschmidt
970 and Power4 don't support "continuous sampling" which means that when we aren't in marked instruction sampling mode (marked events), SIAR isn't updated with the last instruction sampled before the perf interrupt. On those processors, we must thus use the exception SRR0 value as the sampled instruction pointer. Those processors also don't support the SIPR and SIHV bits in MMCRA which means we need some kind of heuristic to decide if SIAR values represent kernel or user addresses. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc+sparc/vio: Modernize driver registrationBenjamin Herrenschmidt
This makes vio_register_driver() get the module owner & name at compile time like PCI drivers do, and adds a name pointer directly in struct vio_driver to avoid having to explicitly initialize the embedded struct device. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net>
2012-03-28powerpc: Random little legacy iSeries removal tidy upsStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc: Remove NO_IRQ_IGNOREStephen Rothwell
Now that legacy iSeries is gone, this is no longer used. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/pseries: Cut down on enthusiastic use of defines in RAS codeAnton Blanchard
So many defines for such a little file. Most of them can go. Also remove the single entry changelog, we have git for that. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/pseries: Clean up ras_error_interrupt codeAnton Blanchard
The RAS error interrupt is no longer used but we may as well mirror the changes we made to the EPOW interrupt. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/pseries: Remove RTAS_POWERMGM_EVENTSAnton Blanchard
IBM bit 2 in the rtas event-scan and check-exception calls is marked reserved in the PAPR, so remove it from our RAS code. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/pseries: Use rtas_get_sensor in RAS codeAnton Blanchard
We have rtas_get_sensor so we may as well use it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/pseries: Parse and handle EPOW interruptsAnton Blanchard
We have code to take environmental and power warning (EPOW) interrupts but it simply prints a terse error message: EPOW <0x6240040000000b8 0x0 0x0> which tells us nothing about what happened. Even worse, if we don't correctly respond to the interrupt we may get terminated by firmware. Add code to printk some useful information when we get EPOW events. We want to make it clear that we have an error, that it was reported by firmware and that the RTAS error log will have more detailed information. eg: Ambient temperature too high reported by firmware. Check RTAS error log for details Depending on the error encountered, we now issue an immediate or an orderly power down. Move initialization of the EPOW interrupt earlier in boot since we want to respond to them as early as possible. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc: Make function that parses RTAS error logs globalAnton Blanchard
The IO event interrupt code has a function that finds specific sections in an RTAS error log. We want to use it in the EPOW code so make it global. Rename things to make it less cryptic: find_xelog_section() -> get_pseries_errorlog() struct pseries_elog_section -> struct pseries_errorlog Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/eeh: Retrieve PHB from global listGavin Shan
Currently, the existing PHBs are retrieved from the FDT (Flat Device Tree) based on the name of FDT node. Specificly, those FDT nodes whose names have prefix "pci" are regarded as PHBs. That's inappropriate because some PCI bridges possibilly have names leading with "pci". It caused EEH is enabled on same PCI devices for towice. The patch fixes the above issue. Besides, the PHBs are expected to be figured out from FDT before enable EEH on them. Therefore, it's resonable to retrieve the PHBs from the global linked list traced by variable "hose_list" insteading poking them from FDT. For the EEH implementation on pSeries platform, RTAS is critical because all low-level functions are implemented based on RTAS. Therefore, we should make sure "/rtas" OF node is available and ready before to enable EEH core. However, it actually introduced duplicate since the previous pSeries platform dependent initialization function already do the check. Besides, we want to make eeh core platform independent, so RTAS related staff should be removed there. The patch removes the duplicate check on "/rtas" OF node for eeh core. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/eeh: Remove eeh information from pci_dnGavin Shan
The patch removes the eeh information from pci_dn since the eeh device (struct eeh_dev) already contained those information and the copy in pci_dn is no longer used except for the pseries iommu mapping code, which we change to retrieve the PE address from eeh device instead. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28powerpc/eeh: Remove eeh device from OF nodeGavin Shan
Originally, the PCI sensitive OF node is tracing the eeh device through struct device_node->edev. However, it was regarded as bad idea. The patch removes struct device_node->edev and uses PCI_DN to trace the corresponding eeh device according to BenH's comments. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>