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* powerpc/4xx: Add L2 cache node to AMCC Canyonlands dts fileStefan Roese2008-12-11
| | | | | | | | | | | | With this patch the L2 cache is enabled on Canyonlands to increase the overall performance. There is a known cache coherency issue with the L2 cache, but this is related to the high bandwidth (HB) PLB segment where the memory address is 0x8.xxxx.xxxx (low bandwidth PLB segment is mapped to 0x0.xxxx.xxxx). Since this HB address is currently unused it is safe to enable the L2 cache. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* powerpc/4xx: Add support for ISA holes on 4xx PCI/X/EBenjamin Herrenschmidt2008-12-04
| | | | | | | | | | | | | | | | | This adds support for ISA memory holes on the PCI, PCI-X and PCI-E busses of the 4xx platforms. The patch includes changes to the Bamboo and Canyonlands device-trees to add such a hole, others can be updated separately. The ISA memory hole is an additional outbound window configured in the bridge to generate PCI cycles in the low memory addresses, thus allowing to access things such as the hard-decoded VGA aperture at 0xa0000..0xbffff or other similar things. It's made accessible to userspace via the new legacy_mem file in sysfs for which support was added by a previous patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* powerpc/44x: update ppc44x_defconfigStephen Rothwell2008-12-04
| | | | | | | | This removes CONFIG_PCI_LEGACY (which is not needed) and consequently several compiler warnings. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* powerpc/kvm: update KVM config options in ppc44x_defconfigHollis Blanchard2008-12-04
| | | | | | | | | | | KVM host support was recently enabled in ppc44x_defconfig, but since then the config option was renamed. Update ppc44x_defconfig to match. Also, KVM guests aren't very interesting without networking, so enable CONFIG_TUN and CONFIG_BRIDGE. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
* powerpc/85xx: Create dts for each core in CAMP mode for MPC8572DSHaiying Wang2008-12-03
| | | | | | | | | | | | | | This patch creates the dts files for each core and splits the devices between the two cores for MPC8572DS. core0 has memory, L2, i2c, dma1, global-util, eth0, eth1, crypto, pci0, pci1. core1 has L2, dma2, eth2, eth3, pci2, msi. MPIC is shared between two cores but each core will protect its interrupts from other core by using "protected-sources" of mpic. Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Don't reset the MPIC for CAMP mode on MPC8572DSHaiying Wang2008-12-03
| | | | | | | | | The flag MPIC_WANTS_RESET shouldn't be set if we are doing cooperative asymmetric MP. The second linux shouldn't reset the pic or the first one gets very confused. Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add localbus node in mpc8572ds dts fileHaiying Wang2008-12-03
| | | | | | | Also add NOR and NAND flash partitions for mpc8572ds board Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/86xx: Basic GPIO support for GE Fanuc SBC610Martyn Welch2008-12-03
| | | | | | | | | | | | | | | | Basic support for the GPIO available on the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC MPC8641D). This patch adds basic support for the GPIO in the devices I/O FPGA, the GPIO functionality is exposed through the AFIX pins on the backplane, unless used by an AFIX card. This code currently does not support switching between totem-pole and open-drain outputs (when used as outputs, GPIOs default to totem-pole). The interrupt capabilites of the GPIO lines is also not currently supported. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/qe: Move cmxgcr_lock definition from the ucc.c into the qe.cAnton Vorontsov2008-12-03
| | | | | | | | | | | | | | | | | With this patch we can compile the qe_lib/usb.c without the UCC support (that is, without UCC_GETH and/or SERIAL_QE). Fixes following link error (CONFIG_SMP should be =y to trigger this): arch/powerpc/sysdev/built-in.o: In function `qe_usb_clock_set': (.text+0x3cae): undefined reference to `cmxgcr_lock' make: *** [.tmp_vmlinux1] Error 1 While at it, also add missing spinlock.h includes. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-By: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/86xx: Add use of Epson RTX-8581 RTC to GE Fanuc SBC610 dtsMartyn Welch2008-12-03
| | | | | | | | Adding use of newly added Epson RTX-8581 real-time clock driver to GE Fanuc SBC610's dts file and adding driver to default config. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Fix compile warnings in mpc85xx_mds.cKumar Gala2008-12-03
| | | | | | | | arch/powerpc/platforms/85xx/mpc85xx_mds.c: In function 'board_fixups': arch/powerpc/platforms/85xx/mpc85xx_mds.c:244: warning: format '%x' expects type 'unsigned int', but argument 4 has type 'resource_size_t' arch/powerpc/platforms/85xx/mpc85xx_mds.c:250: warning: format '%x' expects type 'unsigned int', but argument 4 has type 'resource_size_t' Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add support for SMP initializationKumar Gala2008-12-03
| | | | | | | | | | | Added 85xx specifc smp_ops structure. We use ePAPR style boot release and the MPIC for IPIs at this point. Additionally added routines for secondary cpu entry and initializtion. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: minor head_fsl_booke.S cleanupKumar Gala2008-12-03
| | | | | | Removed unused branch labels Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Better setup of boot page TLB entryTrent Piepho2008-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The initial TLB mapping for the kernel boot didn't set the memory coherent attribute, MAS2[M], in SMP mode. If this code supported booting a secondary processor, which it doesn't yet, but if it did, then when a secondary processor boots, it would probably signal the primary processor by setting a variable called something like __secondary_hold_acknowledge. However, due to the lack of the M bit, the primary processor would not snoop the transaction (even if a transaction were broadcast). If primary CPU's L1 D-cache had a copy, it would not be flushed and the CPU would never see the ack. Which would have resulted in the primary CPU spinning for a long time, perhaps a full second before it gives up, while it would have waited for the ack from the secondary CPU that it wouldn't have been able to see because of the stale cache. The value of MAS2 for the boot page TLB1 entry is a compile time constant, so there is no need to calculate it in powerpc assembly language. Also, from the MPC8572 manual section 6.12.5.3, "Bits that represent offsets within a page are ignored and should be cleared." Existing code didn't clear them, this code does. The same when the page of KERNELBASE is found; we don't need to use asm to mask the lower 12 bits off. In the code that computes the address to rfi from, don't hard code the offset to 24 bytes, but have the assembler figure that out for us. Signed-off-by: Trent Piepho <tpiepho@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Add SPE/EFP math emulation for E500v1/v2 processors.Liu Yu2008-12-03
| | | | | | | | | | | | | | | | | This patch add the handlers of SPE/EFP exceptions. The code is used to emulate float point arithmetic, when MSR(SPE) is enabled and receive EFP data interrupt or EFP round interrupt. This patch has no conflict with or dependence on FP math-emu. The code has been tested by TestFloat. Now the code doesn't support SPE/EFP instructions emulation (it won't be called when receive program interrupt), but it could be easily added. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/math-emu: Remove redundant 'ret'Liu Yu2008-12-03
| | | | | | | | FP_DECL_EX is already used, so ret is redundant. And FP_SET_EXCEPTION will add status into return value. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/math-emu: Adopt new version of _FP_CHOOSENANLiu Yu2008-12-03
| | | | | | | | | Move to using the same macro definition for _FP_CHOOSENAN as s390, sh, sparc32/64. The original author didn't understand this and matched what sparc64 was doing and they have updated to this definition. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/math-emu: Fix single float point division bugLiu Yu2008-12-03
| | | | | | | | | | | | | PowerPC float point division emulation is derived from gcc. I reported this problem on gcc maillist and got this reply: http://gcc.gnu.org/ml/gcc/2008-03/msg00543.html Since UDIV_NEEDS_NORMALIZATION is not used by kernel, we should use _FP_DIV_MEAT_1_udiv_norm to make sure the single float point is normalized before udiv_qrnnd. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Remove unncessary SPE related compiler flagKumar Gala2008-12-03
| | | | | | | | After testing of various compiler flag combinations by Nate Case it was determined that -mabi=no-spe has no impact on the compiler generating SPE instructions. Only -mno-spe and -mspe=no do. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc and sparc: Introduce dev_archdata node accessorsAnton Vorontsov2008-12-03
| | | | | | | | | | | The name of the device_node field differ across the platforms, so we have to implement inlined accessors. This is needed to avoid ugly #ifdef in the generic code. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc/ibmebus: Get rid of the IRQ mapping in ibmebus_free_irq()Sebastien Dugue2008-12-03
| | | | | | | | | | | | ibmebus_free_irq() frees the IRQ but does not remove its mapping, which results in stale entries in the map. This fixes it by adding a call to irq_dispose_mapping() in ibmebus_free_irq(). Signed-off-by: Sebastien Dugue <sebastien.dugue@bull.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Eliminate NULL test and memset after alloc_bootmemJulia Lawall2008-12-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As noted by Akinobu Mita in commit b1fceac2 ("x86: remove unnecessary memset and NULL check after alloc_bootmem()"), alloc_bootmem and related functions never return NULL and always return a zeroed region of memory. Thus a NULL test or memset after calls to these functions is unnecessary. This was fixed using the following semantic patch. (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ expression E; statement S; @@ E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\|alloc_bootmem_node\|alloc_bootmem_low_pages_node\|alloc_bootmem_pages_node\)(...) ... when != E ( - BUG_ON (E == NULL); | - if (E == NULL) S ) @@ expression E,E1; @@ E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\|alloc_bootmem_node\|alloc_bootmem_low_pages_node\|alloc_bootmem_pages_node\)(...) ... when != E - memset(E,0,E1); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Add sync_*_for_* to dma_opsBecky Bruce2008-12-03
| | | | | | | | | | | | | | | | | | We need to swap these out once we start using swiotlb, so add them to dma_ops. Create CONFIG_PPC_NEED_DMA_SYNC_OPS Kconfig option; this is currently enabled automatically if we're CONFIG_NOT_COHERENT_CACHE. In the future, this will also be enabled for builds that need swiotlb. If PPC_NEED_DMA_SYNC_OPS is not defined, the dma_sync_*_for_* ops compile to nothing. Otherwise, they access the dma_ops pointers for the sync ops. This patch also changes dma_sync_single_range_* to actually sync the range - previously it was using a generous dma_sync_single. dma_sync_single_* is now implemented as a dma_sync_single_range with an offset of 0. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Allow the max stack trace depth to be configuredJohannes Berg2008-12-03
| | | | | | | | | | | On my screen, when something crashes, I only have space for maybe 16 functions of the stack trace before the information above it scrolls off the screen. It's easy to hack the kernel to print out only that much, but it's harder to remember to do it. This introduces a config option for it so that I can keep the setting in my config. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Use RCU based pte freeing mechanism for all powerpcKumar Gala2008-12-03
| | | | | | | | | | | Refactor the RCU based pte free code that was used on ppc64 to be used on all powerpc. Additionally refactor pte_free() & pte_free_kernel() into common code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Add a local_flush_tlb_page to handle kmap_atomic invalidatesKumar Gala2008-12-03
| | | | | | | | | | | | | | | | The tlb invalidates in kmap_atomic/kunmap_atomic can be called from IRQ context, however they are only local invalidates (on the processor that the kmap was called on). In the future we want to use IPIs to do tlb invalidates this causes issue since flush_tlb_page() is considered a broadcast invalidate. Add local_flush_tlb_page() as a non-broadcast invalidate and use it in kmap_atomic() since we don't have enough information in the flush_tlb_page() call to determine its local. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: hash_page_sync should only be used on SMP & STD_MMU_32Kumar Gala2008-12-03
| | | | | | | | | Clean up the ifdefs so we only use hash_page_sync if we have CONFIG_SMP && CONFIG_PPC_STD_MMU_32. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix ppc32 mm_struct CPU tracking in SMPBenjamin Herrenschmidt2008-12-03
| | | | | | | | | | The 32-bit hash code didn't need it so far so we don't update mm->cpu_vm_mask on context switch. This however will break when we merge the RCU based page table freeing patch and other upcoming 32-bit embedded SMP work, so this adds the update. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Add MSR[CE, DE] to the MSR bits we print on show_regs()Kumar Gala2008-12-03
| | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'merge'Paul Mackerras2008-12-03
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| * powerpc: Fix dma_map_sg() cache flushing on non coherent platformsBenjamin Herrenschmidt2008-12-03
| | | | | | | | | | | | | | | | | | | | | | On PowerPC 4xx or other non cache-coherent platforms, we lost the appropriate cache flushing in dma_map_sg() when merging the 32 and 64-bit DMA code (commit 4fc665b88a79a45bae8bbf3a05563c27c7337c3d, "powerpc: Merge 32 and 64-bit dma code"). This restores it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds2008-12-02
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: MMU: avoid creation of unreachable pages in the shadow KVM: ppc: stop leaking host memory on VM exit KVM: MMU: fix sync of ptes addressed at owner pagetable KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLER KVM: ia64: Fix incorrect kbuild CFLAGS override KVM: VMX: Fix interrupt loss during race with NMI KVM: s390: Fix problem state handling in guest sigp handler
| | * KVM: MMU: avoid creation of unreachable pages in the shadowMarcelo Tosatti2008-11-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is possible for a shadow page to have a parent link pointing to a freed page. When zapping a high level table, kvm_mmu_page_unlink_children fails to remove the parent_pte link. For that to happen, the child must be unreachable via the shadow tree, which can happen in shadow_walk_entry if the guest pte was modified in between walk() and fetch(). Remove the parent pte reference in such case. Possible cause for oops in bug #2217430. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: ppc: stop leaking host memory on VM exitHollis Blanchard2008-11-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the VM exits, we must call put_page() for every page referenced in the shadow TLB. Without this patch, we usually leak 30-50 host pages (120 - 200 KiB with 4 KiB pages). The maximum number of pages leaked is the size of our shadow TLB, 64 pages. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: MMU: fix sync of ptes addressed at owner pagetableMarcelo Tosatti2008-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During page sync, if a pagetable contains a self referencing pte (that points to the pagetable), the corresponding spte may be marked as writable even though all mappings are supposed to be write protected. Fix by clearing page unsync before syncing individual sptes. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLERXiantao Zhang2008-11-23
| | | | | | | | | | | | | | | | | | | | | PAL_VPS_RESUME_HANDLER should use r26 to hold vac fields according to SDM. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: ia64: Fix incorrect kbuild CFLAGS overrideXiantao Zhang2008-11-23
| | | | | | | | | | | | | | | | | | | | | | | | Use CFLAGS_vcpu.o, not EXTRA_CFLAGS, to provide fixed register information to the compiler. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: VMX: Fix interrupt loss during race with NMIAvi Kivity2008-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an interrupt cannot be injected for some reason (say, page fault when fetching the IDT descriptor), the interrupt is marked for reinjection. However, if an NMI is queued at this time, the NMI will be injected instead and the NMI will be lost. Fix by deferring the NMI injection until the interrupt has been injected successfully. Analyzed by Jan Kiszka. Signed-off-by: Avi Kivity <avi@redhat.com>
| | * KVM: s390: Fix problem state handling in guest sigp handlerChristian Borntraeger2008-11-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | We can get an exit for instructions starting with 0xae, even if the guest is in userspace. Lets make sure, that the signal processor handler is only called in guest supervisor mode. Otherwise, send a program check. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-12-02
| |\ \ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix offset calculation in compute_size() rtc: rtc-starfire fixes
| | * | sparc64: Fix offset calculation in compute_size()David S. Miller2008-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The fault address is somewhere inside of the buffer, not before it. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'for-linus' of ↵Linus Torvalds2008-12-02
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Update defconfigs for 2.6.28-rc7 macfb: Do not overflow fb_fix_screeninfo.id
| | * | | m68k: Update defconfigs for 2.6.28-rc7Geert Uytterhoeven2008-12-02
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
| * | | | MN10300: Fix application of kernel module relocationsMark Salter2008-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the MN10300 kernel module linking to match the toolchain. RELA relocs don't use the value at the location being relocated. This has been working because the tools always leave the value at the target location cleared. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | powerpc: Use physical cpu id when setting the processor affinityKumar Gala2008-12-02
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the CONFIG_SMP case the irq_choose_cpu() code was returning back a logical cpu id not the physical id. We were writing that directly into the HW register. We need to be calling get_hard_smp_processor_id() so irq_choose_cpu() always returns a physical cpu id. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | frv: fix mmap2 error handlingDavid Howells2008-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the error handling in sys_mmap2(). Currently, if the pgoff check fails, fput() might have to be called (which it isn't), so do the pgoff check first, before fget() is called. Signed-off-by: David Howells <dhowells@redhat.com> Reported-by: Julia Lawall <julia@diku.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | spi: fix spi_s3c24xx_gpio num_chipselectBen Dooks2008-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The spi master driver must have num_chipselect set to allow the bus to initialise. Pass this through the platform data. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | Merge branch 'merge' of ↵Linus Torvalds2008-12-01
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 build for 32-bit SMP configs
| | * | | powerpc: Fix build for 32-bit SMP configsMilton Miller2008-11-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | attr_smt_snooze_delay is only defined for CONFIG_PPC64, so protect the attribute removal with the same condition. This fixes this build error on 32-bit SMP configurations: /data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c: In function ‘unregister_cpu_online’: /data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c:722: error: ‘attr_smt_snooze_delay’ undeclared (first use in this function) /data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c:722: error: (Each undeclared identifier is reported only once /data/home/miltonm/next.git/arch/powerpc/kernel/sysfs.c:722: error: for each function it appears in.) Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | | Revert "of_platform_driver noise on sparce"Linus Torvalds2008-12-01
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit e669dae6141ff97d3c7566207f5de3b487dcf837, since it is incomplete, and clashes with fuller patches and the sparc 32/64 unification effort. Requested-by: David Miller <davem@davemloft.net> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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