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* [PATCH] sysctl: Allow /proc/sys without sys_sysctlEric W. Biederman2006-09-271-1/+1
| | | | | | | | | | | Since sys_sysctl is deprecated start allow it to be compiled out. This should catch any remaining user space code that cares, and paves the way for further sysctl cleanups. [akpm@osdl.org: If sys_sysctl() is not compiled-in, emit a warning] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-271-1/+0
| | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_privateTheodore Ts'o2006-09-272-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Judith Lebzelter <judith@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Have Power use add_active_range() and free_area_init_nodes()Mel Gorman2006-09-273-179/+38
| | | | | | | | | | | | | | | | | | Size zones and holes in an architecture independent manner for Power. [judith@osdl.org: build fix] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Andy Whitcroft <apw@shadowen.org> Cc: Andi Kleen <ak@muc.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "Keith Mannthey" <kmannth@gmail.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* MSI: Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HTBrice Goglin2006-09-261-1/+1
| | | | | | | | | | | | | 0x08 is the HT capability, while PCI_CAP_ID_HT_IRQCONF would be the subtype 0x80 that mpic_scan_ht_pic() uses. Rename PCI_CAP_ID_HT_IRQCONF into PCI_CAP_ID_HT. And by the way, use it in the ipath driver instead of defining its own HT_CAPABILITY_ID. Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] Change the name of pagedir_nosaveRafael J. Wysocki2006-09-261-2/+2
| | | | | | | | | | The name of the pagedir_nosave variable does not make sense any more, so it seems reasonable to change it to something more meaningful. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] more fallout from get_property returning pointer to constAl Viro2006-09-232-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [POWERPC] EEH: Power4 systems sometimes need multiple resets.Linas Vepstas2006-09-221-12/+24
| | | | | | | | | | On detection of an EEH error, some Power4 systems seem to occasionally want to be reset twice before they report themselves as fully recovered. This patch re-arranges the code to attempt additional resets if the first one doesn't take. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Include <asm/mmu.h> in arch/powerpc/sysdev/fsl_soc.h for phys_addr_t.Scott Wood2006-09-221-0/+2
| | | | | | | | This patch causes fsl_soc.h to import the definition of phys_addr_t itself, rather than relying on its includer to do so. Signed-off-by: Scott Wood <scott@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Demacrofy arch/powerpc/platforms/maple/pci.cNathan Lynch2006-09-221-19/+25
| | | | | | | | | | | | | | | | | | | | | Noticed that the U3_*CFA macros have some typos: #define U3_HT_CFA0(devfn, off) \ ((((unsigned long)devfn) << 8) | offset) (refers to offset rather than off) #define U3_AGP_CFA0(devfn, off) \ ((1 << (unsigned long)PCI_SLOT(dev_fn)) \ | (((unsigned long)PCI_FUNC(dev_fn)) << 8) \ (refers to dev_fn rather than devfn) Things happen to work, but there doesn't seem to be any reason these shouldn't be functions. Overall behavior should be unchanged. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Maple U3 HT - reject inappropriate config space accessNathan Lynch2006-09-221-0/+6
| | | | | | | | | | | | | | When there is a PCI-X mode 2 capable device behind the HT<->PCI-X bridge, the pci core decides that the device has the extended 4K config space, even though the bus is not operating in mode 2. This is because the u3_ht pci ops silently accept offsets greater than 255 but use only the 8 least significant bits, which means reading at offset 0x100 gets the data at offset 0x0, and causes confusion for lspci. Reject accesses to configuration space offsets greater than 255. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix IPIC pending register assignmentsScott Wood2006-09-221-21/+21
| | | | | | | | | This patch fixes the assignment of pending registers to IRQ numbers for the IPIC; the code previously assigned all IRQs to the high pending word regardless of which word the interrupt belonged to. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Merge iSeries i/o operations with the restStephen Rothwell2006-09-222-52/+242
| | | | | | | | | This patch changes the io operations so that they are out of line if CONFIG_PPC_ISERIES is set and includes a firmware feature check in that case. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: support MMIO enable recovery stepLinas Vepstas2006-09-211-17/+64
| | | | | | | | | | | | Update to the PowerPC PCI error recovery code. Add code to enable MMIO if a device driver reports that it is capable of recovering on its own. One anticipated use of this having a device driver enable MMIO so that it can take a register dump, which might then be followed by the device driver requesting a full reset. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: enable MMIO/DMA on frozen slotLinas Vepstas2006-09-211-0/+29
| | | | | | | | Add wrapper around the rtas call to enable MMIO or DMA on a frozen pci slot. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: code comment cleanupLinas Vepstas2006-09-212-11/+35
| | | | | | | | Clean up subroutine documentation; mostly formatting changes, with some new content. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] EEH: balance pcidev_get/put callsLinas Vepstas2006-09-211-15/+2
| | | | | | | | | | This corrects a pci_dev get/put imbalance that can occur only in highly unlikely situations (kmalloc failures, pci devices with overlapping resource addresses). No actual failures seen, this was spotted during code review. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Add AT_PLATFORM value for Xilinx Virtex-4 FXPeter Bergner2006-09-211-0/+1
| | | | | | | | | Jakub noticed the cputable.c entry for Xilinx Virtex-4 FX was missing a .platform value, so the AT_PLATFORM value wouldn't be set correctly. This adds it. Signed-off-by: Peter Bergner <bergner@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Start arch/powerpc/boot code reorganizationMark A. Greer2006-09-209-178/+441
| | | | | | | | | | | | | | | This abstracts the operations used in the bootwrapper, and defines the operations needed for the bootwrapper to run on an OF platform. The operations have been divided up into platform ops (platform_ops), firmware ops (fw_ops), device tree ops (dt_ops), and console ops (console_ops). The proper operations will be hooked up at runtime to provide the functionality that you need. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Define of_read_ulong helperPaul Mackerras2006-09-203-25/+11
| | | | | | | | | | There are various places where we want to extract an unsigned long value from a device-tree property that can be 1 or 2 cells in length. This replaces some open-coded calculations, and one place where we assumed without checking that properties were the length we wanted, with a little of_read_ulong() helper. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] convert string i/o operations to CStephen Rothwell2006-09-204-103/+118
| | | | | | | | | | This produces essentially the same code and will make the iSeries i/o consolidation easier. The count parameter is changed to long since that will produce the same (better) code on 32 and 64 bit builds. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [POWERPC] clean up ide io accessorsStephen Rothwell2006-09-202-19/+0
| | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [POWERPC] remove unused asm routinesStephen Rothwell2006-09-202-56/+0
| | | | | | _insw, _outsw, _insl amd _outsl are all unused, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [POWERPC] silence a warningStephen Rothwell2006-09-201-1/+1
| | | | | | Left over from the constifying of get_property. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [POWERPC] make spinlocks work in a combined kernelStephen Rothwell2006-09-201-14/+13
| | | | | | If we build a pSeries/iSeries combined kernel, we will need this. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* [POWERPC] Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18Kim Phillips2006-09-141-8/+8
| | | | | | | | | Fix MPC8349EMDS dts PCI interrupt-map values for IDSEL 0x18 per Tanya's catch. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Tanya Jiang <tanya.jiang@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix non-smp buildOlof Johansson2006-09-141-0/+1
| | | | | | | | | This fixes a compile error that only surfaces on CONFIG_SMP=n builds; <asm/hvcall.h> seems to get pulled in through another header file for SMP builds. This problem was introduced by the hvcall stats patch. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'linux-2.6'Paul Mackerras2006-09-1424-236/+809
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| * Merge branch 'merge' of ↵Linus Torvalds2006-09-1318-232/+695
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruption [POWERPC] Fix MMIO ops to provide expected barrier behaviour [POWERPC] Fix interrupt clearing in kdump shutdown sequence [POWERPC] update prep_defconfig [POWERPC] kdump: Support kernels having 64k page size. [POWERPC] Implement PowerPC futex_atomic_cmpxchg_inatomic(). [POWERPC] Add new, missing argument to of_irq_map_raw() for 86xx. [POWERPC] Update defconfigs
| | * [POWERPC] Fix G5 DART (IOMMU) race causing occasional data corruptionBenjamin Herrenschmidt2006-09-131-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems that the occasional data corruption observed with the tg3 driver wasn't due to missing barriers after all, but rather seems to be due to the DART (= IOMMU) in the U4 northbridge reading stale IOMMU table entries from memory due to a race. This fixes it by making the CPU read the entry back from memory before using it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Fix MMIO ops to provide expected barrier behaviourPaul Mackerras2006-09-131-24/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the writeX family of functions to have a sync instruction before the MMIO store rather than after, because the generally expected behaviour is that the device receiving the MMIO store can be guaranteed to see the effects of any preceding writes to normal memory. To preserve ordering between writeX and readX, and to preserve ordering between preceding stores and the readX, the readX family of functions have had an sync added before the load. Although writeX followed by spin_unlock is not officially guaranteed to keep the writeX inside the spin-locked region unless an mmiowb() is used, there are currently drivers that depend on the previous behaviour on powerpc, which was that the mmiowb wasn't actually required. Therefore we have a per-cpu flag that is set by writeX, cleared by __raw_spin_lock and mmiowb, and tested by __raw_spin_unlock. If it is set, __raw_spin_unlock does a sync and clears it. This changes both 32-bit and 64-bit readX/writeX. 32-bit already has a sync in __raw_spin_unlock (since lwsync doesn't exist on 32-bit), and thus doesn't need the per-cpu flag. Tested on G5 (PPC970) and POWER5. Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Fix interrupt clearing in kdump shutdown sequenceMohan Kumar M2006-09-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Call chip->eoi(irq) to clear any pending interrupt in case of kdump shutdown sequence. chip->end(irq) does not serve this purpose. Signed-off-by: Mohan Kumar M <mohan@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Add new, missing argument to of_irq_map_raw() for 86xx.Jon Loeliger2006-09-131-1/+1
| | | | | | | | | | | | | | | | | | | | | Ben speaks; we follow. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| | * [POWERPC] Update defconfigsPaul Mackerras2006-09-1014-205/+662
| | | | | | | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [PATCH] syscall class hookup for all normal targetsAl Viro2006-09-121-0/+4
| | | | | | | | | | | | | | | | | | | | | Take default arch/*/kernel/audit.c to lib/, have those with special needs (== biarch) define AUDIT_ARCH in their Kconfig. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] audit: AUDIT_PERM supportAl Viro2006-09-112-0/+37
| | | | | | | | | | | | | | | | | | add support for AUDIT_PERM predicate Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] audit: more syscall classes addedAl Viro2006-09-112-0/+26
| | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | [PATCH] syscall classes hookup for ppc and s390Al Viro2006-09-113-0/+43
| |/ | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * [PATCH] powerpc: Fix typo in powermac platform functionsBenjamin Herrenschmidt2006-09-031-1/+1
| | | | | | | | | | | | | | | | | | New sparse caught that typo which could have caused erratic hardware behaviour on some machines if the platform functions are used by the firmware to change bits in some FCR registers. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] powerpc: Fix PowerMac IRQ handling bugBenjamin Herrenschmidt2006-09-011-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | The port to genirq & the new powerpc interrupt model in 2.6.18 introduced a bug in the legacy PowerMac PIC code (used on older machines) because of a typo potentially causing hangs due to interrupt storms. This fixes it, along with a performance issue causing us to do spurrious retriggers after masking an interrupt. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [POWERPC] Export copy_4K_page()David Howells2006-09-131-0/+3
| | | | | | | | | | | | | | | | | | Export copy_4K_page() for use by modules via copy_page() (such as CacheFiles). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] print backtrace when entering xmonOlaf Hering2006-09-133-0/+16
| | | | | | | | | | | | | | | | | | | | | | xmon does not print a backtrace per default. This is bad on systems with USB keyboard, the most needed info about the crash is lost. print a backtrace during the very first xmon entry. Booting with xmon=nobt disables the autobacktrace functionality. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powerpc: Instrument Hypervisor CallsMike Kravetz2006-09-135-0/+223
| | | | | | | | | | | | | | | | | | | | Add instrumentation for hypervisor calls on pseries. Call statistics include number of calls, wall time and cpu cycles (if available) and are made available via debugfs. Instrumentation code is behind the HCALL_STATS config option and has no impact if not enabled. Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powerpc: PA Semi PWRficient platform supportOlof Johansson2006-09-137-0/+436
| | | | | | | | | | | | | | | | | | | | | | Base patch for PA6T and PA6T-1682M. This introduces the arch/powerpc/platform/pasemi directory, together with basic implementations for various setup. Much of this was based on other platform code, i.e. Maple, etc. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powerpc: PA6T cputable entry, PVR valueOlof Johansson2006-09-131-0/+14
| | | | | | | | | | | | | | Introduce PWRficient PA6T cputable entries and feature bits. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powerpc: Reduce default cacheline size to 64 bytesOlof Johansson2006-09-132-5/+5
| | | | | | | | | | | | | | | | | | | | Reduce default cacheline size on 64-bit powerpc from 128 bytes to 64. This is the architected minimum. In most cases we'll still end up using cache line information from the device tree, but defaults are used during early boot and doing a few dcbst/icbi's too many there won't do any harm. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Emulate power5 popcntb instructionWill Schmidt2006-09-131-0/+25
| | | | | | | | | | | | | | | | | | In an attempt to make it easier for a power5 optimized app to run on a power4 or a 970 or random earlier machine, this provides emulation of the popcntb instruction. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Split out vpa unregister logic from pseries_kexec_cpu_down_xics()Michael Ellerman2006-09-131-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | As part of the new irq code pseries_kexec_cpu_down() was split into a xics and mpic version. The vpa unregister logic is now only done in the xics routine, and although that's ok in practice (we don't have SPLPAR machines with mpic), I'd rather have the two concepts stay separate. So move the vpa unregister into pseries_kexec_cpu_down(), which gets called by both the xics and mpic routines. This also gives us an obvious place to put any new kexec-down logic needed in future. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'merge'Paul Mackerras2006-08-3123-305/+1072
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| * Merge branch 'merge' of ↵Linus Torvalds2006-08-3025-306/+1083
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix return value from memcpy [POWERPC] iseries: Define insw et al. so libata/ide will compile [POWERPC] Fix irq enable/disable in smp_generic_take_timebase [POWERPC] Fix problem with time not advancing on 32-bit platforms [POWERPC] Restore copyright notice in arch/powerpc/kernel/fpu.S [POWERPC] Fix up ibm_architecture_vec definition [POWERPC] Make OF irq map code detect more error cases [POWERPC] Support for "weird" MPICs and fixup mpc7448_hpc2 [POWERPC] Fix MPIC sense codes in documentation [POWERPC] Fix performance regression in IRQ radix tree locking [POWERPC] Add mpc7448hpc2 device tree source file [POWERPC] Add MPC8349E MDS device tree source file to arch/powerpc/boot/dts [POWERPC] modify mpc83xx platforms to use new IRQ layer [POWERPC] Adapt ipic driver to new host_ops interface, add set_irq_type to set IRQ sense [POWERPC] back up old school ipic.[hc] to arch/ppc [POWERPC] Use mpc8641hpcn PIC base address from dev tree. [POWERPC] Allow MPC8641 HPCN to build with CONFIG_PCI disabled too. [POWERPC] Fix powerpc 44x_mmu build [POWERPC] Remove flush_dcache_all export
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