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* ARM: virt: Add CONFIG_ARM_VIRT_EXT optionDave Martin2012-09-191-0/+17
| | | | | | | It is now possible to enable the virtualization extention support. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: virt: Add boot-time diagnosticsDave Martin2012-09-193-0/+40
| | | | | | | | | | | In order to easily detect pathological cases, print some diagnostics when the kernel boots. This also provides helpers to detect that HYP mode is actually available, which can be used by other subsystems to enable HYP specific features. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: virt: Update documentation for hyp mode entry supportDave Martin2012-09-191-1/+21
| | | | | | | Document the possibility of the kernel being entered in HYP mode. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: zImage/virt: hyp mode entry support for the zImage loaderDave Martin2012-09-194-8/+91
| | | | | | | | | | | | | | | | | | The zImage loader needs to turn on the MMU in order to take advantage of caching while decompressing the zImage. Running this in hyp mode would require the LPAE pagetable format to be supported; to avoid this complexity, this patch switches out of hyp mode, and returns back to hyp mode just before booting the kernel. This implementation assumes that the Hyp mode view of memory and the PL1 view of memory are coherent, providing that the MMU and caches are off in both, as required by the boot protocol. The zImage decompression code must drain the write buffer on completion anyway, and entry into Hyp mode should flush any prefetch buffer, avoiding hazards associated with local write buffers and the pipeline. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: virt: allow the kernel to be entered in HYP modeDave Martin2012-09-196-3/+286
| | | | | | | | | | | | | | | | | | | | | This patch does two things: * Ensure that asynchronous aborts are masked at kernel entry. The bootloader should be masking these anyway, but this reduces the damage window just in case it doesn't. * Enter svc mode via exception return to ensure that CPU state is properly serialised. This does not matter when switching from an ordinary privileged mode ("PL1" modes in ARMv7-AR rev C parlance), but it potentially does matter when switching from a another privileged mode such as hyp mode. This should allow the kernel to boot safely either from svc mode or hyp mode, even if no support for use of the ARM Virtualization Extensions is built into the kernel. Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: opcodes: add __ERET/__MSR_ELR_HYP instruction encodingMarc Zyngier2012-09-191-0/+10
| | | | | | | | | Enabling boot from HYP mode requires the use of some more virt-specific instructions ("eret" and "msr elr_hyp, reg"). Add the necessary encoding to asm/opcode-virt.h. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
* ARM: 7511/1: opcodes: Opcode definitions for the Virtualization ExtensionsDave Martin2012-09-152-0/+31
| | | | | | | | | | | | | | For now, this patch just adds a definition for the HVC instruction. More can be added here later, as needed. Now that we have a real example of how to use the opcode injection macros properly, this patch also adds a cross-reference from the explanation in opcodes.h (since without an example, figuring out how to use the macros is not that easy). Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7510/1: opcodes: Add helpers for emitting custom opcodesDave Martin2012-09-151-0/+69
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds some __inst_() macros for injecting custom opcodes in assembler (both inline and in .S files). They should make it easier and cleaner to get things right in little-/big- endian/ARM/Thumb-2 kernels without a lot of #ifdefs. This pure-preprocessor approach is preferred over the alternative method of wedging extra assembler directives into the assembler input using top-level asm() blocks, since there is no way to guarantee that the compiler won't reorder those with respect to each other or with respect to non-toplevel asm() blocks, unless -fno-toplevel-reorder is passed (which is in itself somewhat undesirable because it defeats some potential optimisations). Currently <asm/unified.h> _does_ silently rely on the compiler not reordering at the top level, but it seems better to avoid adding extra code which depends on this if the same result can be achieved in another way. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7509/1: opcodes: Make opcode byteswapping macros assembly-compatibleDave Martin2012-09-151-15/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the existing macros don't work with assembler, due to the use of type casts and C functions from <linux/swab.h>. This patch abstracts out those operations and provides simple explicit versions for use in assembly code. __opcode_is_thumb32() and __opcode_is_thumb16() are also converted to do bitmask-based testing to avoid confusion if these are used in assembly code (the assembler typically treats all arithmetic values as signed). These changes avoid the need for the compiler to pre-evaluate constant expressions used to generate opcodes. By ensuring that the forms of these expressions can be evaluated directly by the assembler, we can just stringify the expressions directly into the asm during the preprocessing pass. The alternative approach (passing the evaluated expression via an inline asm "i" constraint) gets painful because the contents of the asm and the constraints must be kept in sync. This makes the resulting macros awkward to use. Retaining the C forms of the macros allows more efficient code to be generated when opcodes are generated programmatically at run- time, but there is no way to embed run-time-generated opcodes in asm() blocks. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 7508/1: opcodes: Don't define the thumb32 byteswapping macros for BE32Dave Martin2012-09-151-1/+14
| | | | | | | | | | | | | | | | | | | | The existing __mem_to_opcode_thumb32() is incorrect for BE32 platforms. However, these don't support Thumb-2 kernels, so this option is not so relevant for those platforms anyway. This operation is complicated by the lack of unaligned memory access support prior to ARMv6. Rather than provide a "working" macro which will probably won't get used (or worse, will get misused), this patch removes the macro for BE32 kernels. People manipulating Thumb opcodes prior to ARMv6 should almost certainly be splitting these operations into halfwords anyway, using __opcode_thumb32_{first,second,compose}() and the 16-bit opcode transformations. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Linux 3.6-rc5v3.6-rc5Linus Torvalds2012-09-081-1/+1
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* Merge branch 'fixes-for-3.6' of ↵Linus Torvalds2012-09-085-12/+120
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/mszyprowski/linux-dma-mapping Pull DMA-mapping fixes from Marek Szyprowski: "Another set of fixes for ARM dma-mapping subsystem. Commit e9da6e9905e6 replaced custom consistent buffer remapping code with generic vmalloc areas. It however introduced some regressions caused by limited support for allocations in atomic context. This series contains fixes for those regressions. For some subplatforms the default, pre-allocated pool for atomic allocations turned out to be too small, so a function for setting its size has been added. Another set of patches adds support for atomic allocations to IOMMU-aware DMA-mapping implementation. The last part of this pull request contains two fixes for Contiguous Memory Allocator, which relax too strict requirements." * 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping: ARM: dma-mapping: IOMMU allocates pages from atomic_pool with GFP_ATOMIC ARM: dma-mapping: Introduce __atomic_get_pages() for __iommu_get_pages() ARM: dma-mapping: Refactor out to introduce __in_atomic_pool ARM: dma-mapping: atomic_pool with struct page **pages ARM: Kirkwood: increase atomic coherent pool size ARM: DMA-Mapping: print warning when atomic coherent allocation fails ARM: DMA-Mapping: add function for setting coherent pool size from platform code ARM: relax conditions required for enabling Contiguous Memory Allocator mm: cma: fix alignment requirements for contiguous regions
| * ARM: dma-mapping: IOMMU allocates pages from atomic_pool with GFP_ATOMICHiroshi Doyu2012-08-281-0/+36
| | | | | | | | | | | | | | | | | | Make use of the same atomic pool as DMA does, and skip a kernel page mapping which can involve sleep'able operations at allocating a kernel page table. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: dma-mapping: Introduce __atomic_get_pages() for __iommu_get_pages()Hiroshi Doyu2012-08-281-0/+12
| | | | | | | | | | | | | | | | | | Support atomic allocation in __iommu_get_pages(). Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> [moved __atomic_get_pages() under #ifdef CONFIG_ARM_DMA_USE_IOMMU to avoid unused fuction warning for no-IOMMU case] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: dma-mapping: Refactor out to introduce __in_atomic_poolHiroshi Doyu2012-08-281-6/+20
| | | | | | | | | | | | | | Check the given range("start", "size") is included in "atomic_pool" or not. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: dma-mapping: atomic_pool with struct page **pagesHiroshi Doyu2012-08-281-3/+14
| | | | | | | | | | | | | | | | | | struct page **pages is necessary to align with non atomic path in __iommu_get_pages(). atomic_pool() has the intialized **pages instead of just *page. Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: Kirkwood: increase atomic coherent pool sizeMarek Szyprowski2012-08-281-0/+7
| | | | | | | | | | | | | | | | | | | | The default 256 KiB coherent pool may be too small for some of the Kirkwood devices, so increase it to make sure that devices will be able to allocate their buffers with GFP_ATOMIC flag. Suggested-by: Josh Coombs <josh.coombs@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Jason Cooper <jason@lakedaemon.net>
| * ARM: DMA-Mapping: print warning when atomic coherent allocation failsMarek Szyprowski2012-08-281-0/+4
| | | | | | | | | | | | | | | | Print a loud warning when system runs out of memory from atomic DMA coherent pool to let users notice the potential problem. Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: DMA-Mapping: add function for setting coherent pool size from platform codeMarek Szyprowski2012-08-282-1/+25
| | | | | | | | | | | | | | | | | | | | | | Some platforms might require to increase atomic coherent pool to make sure that their device will be able to allocate all their buffers from atomic context. This function can be also used to decrease atomic coherent pool size if coherent allocations are not used for the given sub-platform. Suggested-by: Josh Coombs <josh.coombs@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| * ARM: relax conditions required for enabling Contiguous Memory AllocatorMarek Szyprowski2012-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Contiguous Memory Allocator requires only paging and MMU enabled not particular CPU architectures, so there is no need for strict dependency on CPU type. This enables to use CMA on some older ARM v5 systems which also might need large contiguous blocks for the multimedia processing hw modules. Reported-by: Prabhakar Lad <prabhakar.lad@ti.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Prabhakar Lad <prabhakar.lad@ti.com>
| * mm: cma: fix alignment requirements for contiguous regionsMarek Szyprowski2012-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Contiguous Memory Allocator requires each of its regions to be aligned in such a way that it is possible to change migration type for all pageblocks holding it and then isolate page of largest possible order from the buddy allocator (which is MAX_ORDER-1). This patch relaxes alignment requirements by one order, because MAX_ORDER alignment is not really needed. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> CC: Michal Nazarewicz <mina86@mina86.com> Acked-by: Michal Nazarewicz <mina86@mina86.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-09-084-2/+23
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem updates from Dmitry Torokhov. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: wacom - add support for EMR on Cintiq 24HD touch Input: i8042 - add Gigabyte T1005 series netbooks to noloop table Input: imx_keypad - reset the hardware before enabling Input: edt-ft5x06 - fix build error when compiling wthout CONFIG_DEBUG_FS
| * | Input: wacom - add support for EMR on Cintiq 24HD touchJason Gerecke2012-08-211-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for the EMR digitizer on the Cintiq 24HD touch. The EMR digitizer should work identically to that found on the Cintiq 24HD. The touch digitizer is a separate USB device similar to how we split apart some other devices. Signed-off-by: Jason Gerecke <killertofu@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: i8042 - add Gigabyte T1005 series netbooks to noloop tableDmitry Torokhov2012-08-211-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They all define their chassis type as "Other" and therefore are not categorized as "laptops" by the driver, which tries to perform AUX IRQ delivery test which fails and causes touchpad not working. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42620 Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: imx_keypad - reset the hardware before enablingMichael Grzeschik2012-08-211-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure the hardware is correctly initialized before requesting the interrupt, otherwise if a key was already touched since power-on the kernel enters an interrupt loop. To fix this issue we clear pending interrupt sources. We also have to make sure clk is enabled while changing the keypad registers. Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * | Input: edt-ft5x06 - fix build error when compiling wthout CONFIG_DEBUG_FSGuenter Roeck2012-08-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following breakage: edt-ft5x06.c: In function edt_ft5x06_ts_remove: edt-ft5x06.c:846:14: error: struct edt_ft5x06_ts_data has no member named raw_buffer Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Simon Budig <simon.budig@kernelconcepts.de> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | | Merge branch 'upstream-fixes' of ↵Linus Torvalds2012-09-072-2/+6
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid Pull HID updates from Jiri Kosina: "It contains a fix for Eaton Ellipse MAX UPS from Alan Stern, performance improvement (not processing debug data if noone is interested), by Henrik Rydberg, and allowing tpkbd-driven devices to work even with generic driver in a crippled mode, by Andres Freund." * 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured HID: Only dump input if someone is listening HID: add NOGET quirk for Eaton Ellipse MAX UPS
| * | | HID: tpkbd: work even if the new Lenovo Keyboard driver is not configuredAndres Freund2012-09-071-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | c1dcad2d32d0252e8a3023d20311b52a187ecda3 added a new driver configured by HID_LENOVO_TPKBD but made the hid_have_special_driver entry non-optional which lead to a recognized but non-working device if the new driver wasn't configured (which is the correct default). Signed-off-by: Andres Freund <andres@anarazel.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | HID: Only dump input if someone is listeningHenrik Rydberg2012-09-021-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Going through the motions of printing the debug message information takes a long time; using the keyboard can lead to a 160 us irqsoff latency. This patch skips hid_dump_input() when there are no open handles, which brings latency down to 100 us. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | HID: add NOGET quirk for Eaton Ellipse MAX UPSAlan Stern2012-08-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1603) adds a NOGET quirk for the Eaton Ellipse MAX UPS device. (The USB IDs were already present in hid-ids.h, apparently under a different name.) Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Laurent Bigonville <l.bigonville@edpnet.be> CC: <stable@vger.kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | Merge tag 'stable/for-linus-3.6-rc4-tag' of ↵Linus Torvalds2012-09-064-7/+7
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen bug-fixes from Konrad Rzeszutek Wilk: * Fix for TLB flushing introduced in v3.6 * Fix Xen-SWIOTLB not using proper DMA mask - device had 64bit but in a 32-bit kernel we need to allocate for coherent pages from a 32-bit pool. * When trying to re-use P2M nodes we had a one-off error and triggered a BUG_ON check with specific CONFIG_ option. * When doing FLR in Xen-PCI-backend we would first do FLR then save the PCI configuration space. We needed to do it the other way around. * tag 'stable/for-linus-3.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pciback: Fix proper FLR steps. xen: Use correct masking in xen_swiotlb_alloc_coherent. xen: fix logical error in tlb flushing xen/p2m: Fix one-off error in checking the P2M tree directory.
| * | | | xen/pciback: Fix proper FLR steps.Konrad Rzeszutek Wilk2012-09-061-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we do FLR and save PCI config we did it in the wrong order. The end result was that if a PCI device was unbind from its driver, then binded to xen-pciback, and then back to its driver we would get: > lspci -s 04:00.0 04:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 13:42:12 # 4 :~/ > echo "0000:04:00.0" > /sys/bus/pci/drivers/pciback/unbind > modprobe e1000e e1000e: Intel(R) PRO/1000 Network Driver - 2.0.0-k e1000e: Copyright(c) 1999 - 2012 Intel Corporation. e1000e 0000:04:00.0: Disabling ASPM L0s L1 e1000e 0000:04:00.0: enabling device (0000 -> 0002) xen: registering gsi 48 triggering 0 polarity 1 Already setup the GSI :48 e1000e 0000:04:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode e1000e: probe of 0000:04:00.0 failed with error -2 This fixes it by first saving the PCI configuration space, then doing the FLR. Reported-by: Ren, Yongjie <yongjie.ren@intel.com> Reported-and-Tested-by: Tobias Geiger <tobias.geiger@vido.info> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> CC: stable@vger.kernel.org
| * | | | xen: Use correct masking in xen_swiotlb_alloc_coherent.Ronny Hegewald2012-09-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running 32-bit pvops-dom0 and a driver tries to allocate a coherent DMA-memory the xen swiotlb-implementation returned memory beyond 4GB. The underlaying reason is that if the supplied driver passes in a DMA_BIT_MASK(64) ( hwdev->coherent_dma_mask is set to 0xffffffffffffffff) our dma_mask will be u64 set to 0xffffffffffffffff even if we set it to DMA_BIT_MASK(32) previously. Meaning we do not reset the upper bits. By using the dma_alloc_coherent_mask function - it does the proper casting and we get 0xfffffffff. This caused not working sound on a system with 4 GB and a 64-bit compatible sound-card with sets the DMA-mask to 64bit. On bare-metal and the forward-ported xen-dom0 patches from OpenSuse a coherent DMA-memory is always allocated inside the 32-bit address-range by calling dma_alloc_coherent_mask. This patch adds the same functionality to xen swiotlb and is a rebase of the original patch from Ronny Hegewald which never got upstream b/c the underlaying reason was not understood until now. The original email with the original patch is in: http://old-list-archives.xen.org/archives/html/xen-devel/2010-02/msg00038.html the original thread from where the discussion started is in: http://old-list-archives.xen.org/archives/html/xen-devel/2010-01/msg00928.html Signed-off-by: Ronny Hegewald <ronny.hegewald@online.de> Signed-off-by: Stefano Panella <stefano.panella@citrix.com> Acked-By: David Vrabel <david.vrabel@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> CC: stable@vger.kernel.org
| * | | | xen: fix logical error in tlb flushingAlex Shi2012-09-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While TLB_FLUSH_ALL gets passed as 'end' argument to flush_tlb_others(), the Xen code was made to check its 'start' parameter. That may give a incorrect op.cmd to MMUEXT_INVLPG_MULTI instead of MMUEXT_TLB_FLUSH_MULTI. Then it causes some page can not be flushed from TLB. This patch fixed this issue. Reported-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Alex Shi <alex.shi@intel.com> Acked-by: Jan Beulich <jbeulich@suse.com> Tested-by: Yongjie Ren <yongjie.ren@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| * | | | Merge commit '4cb38750d49010ae72e718d46605ac9ba5a851b4' into ↵Konrad Rzeszutek Wilk2012-09-056055-141649/+334864
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stable/for-linus-3.6 * commit '4cb38750d49010ae72e718d46605ac9ba5a851b4': (6849 commits) bcma: fix invalid PMU chip control masks [libata] pata_cmd64x: whitespace cleanup libata-acpi: fix up for acpi_pm_device_sleep_state API sata_dwc_460ex: device tree may specify dma_channel ahci, trivial: fixed coding style issues related to braces ahci_platform: add hibernation callbacks libata-eh.c: local functions should not be exposed globally libata-transport.c: local functions should not be exposed globally sata_dwc_460ex: support hardreset ata: use module_pci_driver drivers/ata/pata_pcmcia.c: adjust suspicious bit operation pata_imx: Convert to clk_prepare_enable/clk_disable_unprepare ahci: Enable SB600 64bit DMA on MSI K9AGM2 (MS-7327) v2 [libata] Prevent interface errors with Seagate FreeAgent GoFlex drivers/acpi/glue: revert accidental license-related 6b66d95895c bits libata-acpi: add missing inlines in libata.h i2c-omap: Add support for I2C_M_STOP message flag i2c: Fall back to emulated SMBus if the operation isn't supported natively i2c: Add SCCB support i2c-tiny-usb: Add support for the Robofuzz OSIF USB/I2C converter ...
| * | | | | xen/p2m: Fix one-off error in checking the P2M tree directory.Konrad Rzeszutek Wilk2012-09-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We would traverse the full P2M top directory (from 0->MAX_DOMAIN_PAGES inclusive) when trying to figure out whether we can re-use some of the P2M middle leafs. Which meant that if the kernel was compiled with MAX_DOMAIN_PAGES=512 we would try to use the 512th entry. Fortunately for us the p2m_top_index has a check for this: BUG_ON(pfn >= MAX_P2M_PFN); which we hit and saw this: (XEN) domain_crash_sync called from entry.S (XEN) Domain 0 (vcpu#0) crashed on cpu#0: (XEN) ----[ Xen-4.1.2-OVM x86_64 debug=n Tainted: C ]---- (XEN) CPU: 0 (XEN) RIP: e033:[<ffffffff819cadeb>] (XEN) RFLAGS: 0000000000000212 EM: 1 CONTEXT: pv guest (XEN) rax: ffffffff81db5000 rbx: ffffffff81db4000 rcx: 0000000000000000 (XEN) rdx: 0000000000480211 rsi: 0000000000000000 rdi: ffffffff81db4000 (XEN) rbp: ffffffff81793db8 rsp: ffffffff81793d38 r8: 0000000008000000 (XEN) r9: 4000000000000000 r10: 0000000000000000 r11: ffffffff81db7000 (XEN) r12: 0000000000000ff8 r13: ffffffff81df1ff8 r14: ffffffff81db6000 (XEN) r15: 0000000000000ff8 cr0: 000000008005003b cr4: 00000000000026f0 (XEN) cr3: 0000000661795000 cr2: 0000000000000000 Fixes-Oracle-Bug: 14570662 CC: stable@vger.kernel.org # only for v3.5 Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* | | | | | Merge tag '3.6-pci-fixes' of ↵Linus Torvalds2012-09-066-14/+92
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Power management - PCI/PM: Enable D3/D3cold by default for most devices - PCI/PM: Keep parent bridge active when probing device - PCI/PM: Fix config reg access for D3cold and bridge suspending - PCI/PM: Add ABI document for sysfs file d3cold_allowed Core - PCI: Don't print anything while decoding is disabled" * tag '3.6-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Don't print anything while decoding is disabled PCI/PM: Add ABI document for sysfs file d3cold_allowed PCI/PM: Fix config reg access for D3cold and bridge suspending PCI/PM: Keep parent bridge active when probing device PCI/PM: Enable D3/D3cold by default for most devices
| * | | | | | PCI: Don't print anything while decoding is disabledBjorn Helgaas2012-08-231-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we try to print to the console device while its decoding is disabled, the system will hang. Reported-and-tested-by: Olof Johansson <olof@lixom.net> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Olof Johansson <olof@lixom.net>
| * | | | | | PCI/PM: Add ABI document for sysfs file d3cold_allowedHuang Ying2012-08-211-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds ABI document for the following sysfs file: /sys/bus/pci/devices/.../d3cold_allowed Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | | | | | PCI/PM: Fix config reg access for D3cold and bridge suspendingHuang Ying2012-08-212-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following bug: http://marc.info/?l=linux-pci&m=134338059022620&w=2 Where lspci does not work properly if a device and the corresponding parent bridge (such as PCIe port) is suspended. This is because the device configuration space registers will be not accessible if the corresponding parent bridge is suspended or the device is put into D3cold state. To solve the issue, the bridge/PCIe port connected to the device is put into active state before read/write configuration space registers. If the device is in D3cold state, it will be put into active state too. To avoid resume/suspend PCIe port for each configuration register read/write, a small delay is added before the PCIe port to go suspended. Reported-by: Bjorn Mork <bjorn@mork.no> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | | | | | PCI/PM: Keep parent bridge active when probing deviceHuang Ying2012-08-211-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following bug: http://marc.info/?l=linux-pci&m=134329923124234&w=2 The root cause of the bug is as follow. If a device is not bound with the corresponding driver, the device runtime PM will be disabled and the device will be put into suspended state. So that, the bridge/PCIe port connected to it may be put into suspended and low power state. When do probing for the device later, because the bridge/PCIe port connected to it is in low power state, the IO access to device may fail. To solve the issue, the bridge/PCIe port connected to the device is put into active state before probing. Reported-by: Bjorn Mork <bjorn@mork.no> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
| * | | | | | PCI/PM: Enable D3/D3cold by default for most devicesHuang Ying2012-08-212-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following bug: http://marc.info/?l=linux-usb&m=134318961120825&w=2 Originally, device lower power states include D1, D2, D3. After that, D3 is further divided into D3hot and D3cold. To support both scenario safely, original D3 is mapped to D3cold. When adding D3cold support, because worry about some device may have broken D3cold support, D3cold is disabled by default. This disable D3 on original platform too. But some original platform may only have working D3, but no working D1, D2. The root cause of the above bug is it too. To deal with this, this patch enables D3/D3cold by default for most devices. This restores the original behavior. For some devices that suspected to have broken D3cold support, such as PCIe port, D3cold is disabled by default. Reported-by: Bjorn Mork <bjorn@mork.no> Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
* | | | | | | Merge tag 'fixes-for-linus' of ↵Linus Torvalds2012-09-0617-27/+73
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC bug fixes from Olof Johansson: "Mostly Renesas and Atmel bugfixes this time, targeting boot and build problems. A couple of patches for gemini and kirkwood as well. On a whole nothing very controversial." * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: gemini: fix the gemini build ARM: shmobile: armadillo800eva: enable rw rootfs mount ARM: Kirkwood: Fix 'SZ_1M' undeclared here for db88f6281-bp-setup.c ARM: shmobile: mackerel: fixup usb module order ARM: shmobile: armadillo800eva: fixup: sound card detection order ARM: shmobile: marzen: fixup smsc911x id for regulator ARM: at91/feature-removal-schedule: delay at91_mci removal ARM: mach-shmobile: armadillo800eva: Enable power button as wakeup source ARM: mach-shmobile: armadillo800eva: Fix GPIO buttons descriptions ARM: at91/dts: remove partial parameter in at91sam9g25ek.dts ARM: at91/clock: fix PLLA overclock warning ARM: at91: fix rtc-at91sam9 irq issue due to sparse irq support ARM: at91: fix system timer irq issue due to sparse irq support ARM: shmobile: sh73a0: fixup RELOC_BASE of intca_irq_pins_desc
| * | | | | | | ARM: gemini: fix the gemini buildLinus Walleij2012-09-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test-compiling obscure machines I notice that the gemini (which by the way lacks a defconfig) is broken since some time back. Adding a simple missing include makes it build again. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | | | | | Merge branch 'fixes' of ↵Olof Johansson2012-09-043-3/+4
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes Two regression fixes and one boot-loader compatibility fix from Simon Horman. * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: armadillo800eva: enable rw rootfs mount ARM: shmobile: mackerel: fixup usb module order ARM: shmobile: armadillo800eva: fixup: sound card detection order
| | * | | | | | | ARM: shmobile: armadillo800eva: enable rw rootfs mountKuninori Morimoto2012-09-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | armadillo800eva default boot loader is "hermit", and it's tag->u.core.flags has flag when kernel boots. Because of this, ${LINUX}/arch/arm/kernel/setup.c :: parse_tag_core() didn't remove MS_RDONLY flag from root_mountflags. Thus, the rootfs is mounted as "readonly". This patch adds "rw" kernel parameter, and enable read/write mounts for rootfs Cc: Masahiro Nakai <nakai@atmark-techno.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
| | * | | | | | | ARM: shmobile: mackerel: fixup usb module orderKuninori Morimoto2012-08-311-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | renesas_usbhs driver can play role as both Host and Gadget. In case of Gadget, it requires not only renesas_usbhs but also usb gadget module (like g_ether). So, renesas_usbhs driver calls usb_add_gadget_udc() on probe time. Because of this behavior, Host port plays also Gadget role if kernel has both Host/Gadget support. In mackerel case, from 0ada2da51800a4914887a9bcf22d563be80e50be (ARM: mach-shmobile: mackerel: use renesas_usbhs instead of r8a66597_hcd) usb0 plays Gadget role, and usb1 plays Host role, and current mackerel board probes as usb1 -> usb0. Thus, 1st installed usb gadget module (like g_ether) will be assigned to usb1 (= usb Host port), and 2nd module to usb0 (= usb Gadget port). It is very confusable for user. This patch fixup usb modes probing order as usb0 -> usb1. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
| | * | | | | | | ARM: shmobile: armadillo800eva: fixup: sound card detection orderKuninori Morimoto2012-08-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since armadillo800eva has 2 sound cards, and had reversed deferred probe order issue, it was purposely registered in reverse order. But it was solved by 1d29cfa57471a5e4b8a7c2a7433eeba170d3ad92 (driver core: fixup reversed deferred probe order) armadillo800eva board is expecting that FSI-WM8978 is the 1st, and FSI-HDMI is the 2nd sound card. This patch fixes it up Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
| * | | | | | | | Merge branch 'fixes' of ↵Olof Johansson2012-09-021-1/+1
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: marzen: fixup smsc911x id for regulator
| | * | | | | | | ARM: shmobile: marzen: fixup smsc911x id for regulatorKuninori Morimoto2012-08-301-1/+1
| | | |_|_|_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dummy_supplies for smsc911x are registered as "smsc911x". smsc911x driver needs id = -1 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 18:45:08 +0000