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2012-01-17arch/powerpc/sysdev/fsl_pci.c: add missing iounmapJulia Lawall1-2/+3
Add missing iounmap in error handling code, in a case where the function already preforms iounmap on some other execution path. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; statement S,S1; int ret; @@ e = \(ioremap\|ioremap_nocache\)(...) ... when != iounmap(e) if (<+...e...+>) S ... when any when != iounmap(e) *if (...) { ... when != iounmap(e) return ...; } ... when any iounmap(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-08Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-1/+0
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-07Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-34/+8
Changes queued in gpio/next for the start of the 3.3 merge window * tag 'gpio-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6: gpio: Add decode of WM8994 GPIO configuration gpio: Convert GPIO drivers to module_platform_driver gpio: Fix typo in comment in Samsung driver gpio: Explicitly index samsung_gpio_cfgs gpio: Add Linus Walleij as gpio co-maintainer of: Add device tree selftests of: create of_phandle_args to simplify return of phandle parsing data gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags() gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags() gpiolib: output basic details and consolidate gpio device drivers pch_gpio: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor pch_gpio: Support new device LAPIS Semiconductor ML7831 IOH spi/pl022: make the chip deselect handling thread safe spi/pl022: add support for pm_runtime autosuspend spi/pl022: disable the PL022 block when unused spi/pl022: move device disable to workqueue thread spi/pl022: skip default configuration before suspending spi/pl022: fix build warnings spi/pl022: only enable RX interrupts when TX is complete
2012-01-07Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds3-10/+9
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits) arm: fix up some samsung merge sysdev conversion problems firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Drivers:hv: Fix a bug in vmbus_driver_unregister() driver core: remove __must_check from device_create_file debugfs: add missing #ifdef HAS_IOMEM arm: time.h: remove device.h #include driver-core: remove sysdev.h usage. clockevents: remove sysdev.h arm: convert sysdev_class to a regular subsystem arm: leds: convert sysdev_class to a regular subsystem kobject: remove kset_find_obj_hinted() m86k: gpio - convert sysdev_class to a regular subsystem mips: txx9_sram - convert sysdev_class to a regular subsystem mips: 7segled - convert sysdev_class to a regular subsystem sh: dma - convert sysdev_class to a regular subsystem sh: intc - convert sysdev_class to a regular subsystem power: suspend - convert sysdev_class to a regular subsystem power: qe_ic - convert sysdev_class to a regular subsystem power: cmm - convert sysdev_class to a regular subsystem s390: time - convert sysdev_class to a regular subsystem ... Fix up conflicts with 'struct sysdev' removal from various platform drivers that got changed: - arch/arm/mach-exynos/cpu.c - arch/arm/mach-exynos/irq-eint.c - arch/arm/mach-s3c64xx/common.c - arch/arm/mach-s3c64xx/cpu.c - arch/arm/mach-s5p64x0/cpu.c - arch/arm/mach-s5pv210/common.c - arch/arm/plat-samsung/include/plat/cpu.h - arch/powerpc/kernel/sysfs.c and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-06Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman3-10/+9
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04powerpc/fsl: add MSI support for the Freescale hypervisorTimur Tabi3-23/+81
Add support for vmpic-msi nodes to the fsl_msi driver. The MSI is virtualized by the hypervisor, so the vmpic-msi does not contain a 'reg' property. Instead, the driver uses hcalls. Add support for the "msi-address-64" property to the fsl_pci driver. The Freescale hypervisor typically puts the virtualized MSIIR register in the page after the end of DDR, so we extend the DDR ATMU to cover it. Any other location for MSIIR is not supported, for now. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfreeJulia Lawall1-0/+1
rmu needs to be freed before leaving the function in an error case. A simplified version of the semantic match that finds the problem is as follows: (http://coccinelle.lip6.fr) // <smpl> @r exists@ local idexpression x; statement S; identifier f1; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } x->f1 ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl: Add support for Integrated Flash ControllerPrabhakar Kushwaha2-0/+311
Integrated Flash Controller supports various flashes like NOR, NAND and other devices using NOR, NAND and GPCM Machine available on it. IFC supports four chip selects. Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Liu Shuo <b35362@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-04powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory addressKumar Gala1-0/+55
There is an issue on FSL-BookE 64-bit devices (P5020) in which PCIe devices that are capable of doing 64-bit DMAs (like an Intel e1000) do not function and crash the kernel if we have >4G of memory in the system. The reason is that the existing code only sets up one inbound window for access to system memory across PCIe. That window is limited to a 32-bit address space. So on systems we'll end up utilizing SWIOTLB for dma mappings. However SWIOTLB dma ops implement dma_alloc_coherent() as dma_direct_alloc_coherent(). Thus we can end up with dma addresses that are not accessible because of the inbound window limitation. We could possibly set the SWIOTLB alloc_coherent op to swiotlb_alloc_coherent() however that does not address the issue since the swiotlb_alloc_coherent() will behave almost identical to dma_direct_alloc_coherent() since the devices coherent_dma_mask will be greater than any address allocated by swiotlb_alloc_coherent() and thus we'll never bounce buffer it into a range that would be dma-able. The easiest and best solution is to just make it so that a 64-bit capable device is able to DMA to any internal system address. We accomplish this by opening up a second inbound window that maps all of memory above the internal SoC address width so we can set it up to access all of the internal SoC address space if needed. We than fixup the dma_ops and dma_offset for PCIe devices with a dma mask greater than the maximum internal SoC address. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-01-03fs: move code out of buffer.cAl Viro1-1/+0
Move invalidate_bdev, block_sync_page into fs/block_dev.c. Export kill_bdev as well, so brd doesn't have to open code it. Reduce buffer_head.h requirement accordingly. Removed a rather large comment from invalidate_bdev, as it looked a bit obsolete to bother moving. The small comment replacing it says enough. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-12-21driver-core: remove sysdev.h usage.Kay Sievers1-1/+0
The sysdev.h file should not be needed by any in-kernel code, so remove the .h file from these random files that seem to still want to include it. The sysdev code will be going away soon, so this include needs to be removed no matter what. Cc: Jiandong Zheng <jdzheng@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: "Venkatesh Pallipadi Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Matthew Garrett <mjg@redhat.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
2011-12-21power: qe_ic - convert sysdev_class to a regular subsystemKay Sievers1-6/+6
After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Cc: Timur Tabi <timur@freescale.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-21cpu: convert 'cpu' and 'machinecheck' sysdev_class to a regular subsystemKay Sievers1-3/+3
This moves the 'cpu sysdev_class' over to a regular 'cpu' subsystem and converts the devices to regular devices. The sysdev drivers are implemented as subsystem interfaces now. After all sysdev classes are ported to regular driver core entities, the sysdev implementation will be entirely removed from the kernel. Userspace relies on events and generic sysfs subsystem infrastructure from sysdev devices, which are made available with this conversion. Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Borislav Petkov <bp@amd64.org> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Len Brown <lenb@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Dave Jones <davej@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-16Merge remote-tracking branch 'jwb/next' into nextBenjamin Herrenschmidt2-8/+84
Conflicts: arch/powerpc/platforms/40x/ppc40x_simple.c
2011-12-12gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags()Grant Likely1-34/+8
A large chunk of qe_pin_request() is unnecessarily cut-and-paste directly from of_get_named_gpio_flags(). This patch cuts out the duplicate code and replaces it with a call to of_get_gpio(). v2: fixed compile error due to missing gpio_to_chip() Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org>
2011-12-09powerpc/476fpe: Add 476fpe SoC codeTony Breeds2-1/+63
Based on original work by David 'Shaggy' Kleikamp. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-12-09powerpc/44x: pci: Setup the dma_window properties for each pci_controllerTony Breeds1-0/+6
Needed if you want to use swiotlb, harmless otherwise. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-12-09powerpc/44x: pci: Add a want_sdr flag into ppc4xx_pciex_hwopsTony Breeds1-6/+14
Currituck doesn't need nor use SDR so aborting the pci setup if there is no sdr-base would be bad. Add a flag to ppc4xx_pciex_hwops for the backends to state if they need SDR and then only complain and abort if they do and it's not found in the device tree. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-12-09powerpc/44x: pci: Use PCI_BASE_ADDRESS_MEM_PREFETCH rather than magic value.Tony Breeds1-1/+1
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-12-08powerpc/xics: Reset the CPPR if H_EOI failsAnton Blanchard1-6/+7
I have an intermittent kdump fail where the hypervisor fails an H_EOI. As a result our CPPR is never reset to 0xff and we no longer accept interrupts. This patch calls icp_hv_set_cppr to reset the CPPR if H_EOI fails, fixing the kdump fail. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Add in-core support for cascaded MPICsKyle Moffett1-2/+28
The Cell and PowerMac platforms use virtually identical cascaded-IRQ setup code, so just merge it into the core. Ideally this code would trigger automatically when an MPIC device-node specifies an "interrupts" property, perhaps even enabling MPIC_SECONDARY along the way. Unfortunately, Benjamin Herrenschmidt has had bad experiences in the past with the quality of Apple PowerMac device-trees, so to be safe we will only try to parse out an IRQ if the MPIC_SECONDARY flag is set by the caller. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Cache the device-tree node in "struct mpic"Kyle Moffett1-17/+16
Store the node pointer in the MPIC during initialization so that all of the later operational code can just reuse the cached pointer. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Put "pic-no-reset" test back into the MPIC codeKyle Moffett1-6/+1
There's not really any reason to have this one-liner in a separate static inline function, given that all the other similar tests are already in the alloc_mpic() code. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Don't open-code dcr_resource_startKyle Moffett1-5/+2
Don't open-code the OpenFirmware "dcr-reg" property lookup trying to map DCR resources. This makes the code a bit easier to read. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Invert the meaning of MPIC_PRIMARYKyle Moffett1-7/+7
It turns out that there are only 2 in-tree platforms which use MPICs which are not "primary": IBM Cell and PowerMac. To reduce the complexity of the typical board setup code, invert the MPIC_PRIMARY bit into MPIC_SECONDARY. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Search for open-pic device-tree node if NULLKyle Moffett1-4/+30
Almost all PowerPC platforms use a standard "open-pic" device node so the mpic_alloc() function now accepts NULL for the device-node. This will cause it to perform a default search with of_find_matching_node(). Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Save computed phys_addr for board-specific codeKyle Moffett1-5/+6
The MPIC code can already perform an automatic OF address translation step as part of mpic_alloc(), but several boards need to use that base address when they perform mpic_assign_isu(). The easiest solution is to save the computed physical address into the "struct mpic" for later use by the board code. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc/mpic: Assume a device-node was passed in mpic_alloc()Kyle Moffett1-29/+21
All of the existing callers of mpic_alloc() pass in a non-NULL device-node pointer, so the checks for a NULL device-node may be removed. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-12-07powerpc: Consolidate mpic_alloc() OF address translationKyle Moffett1-27/+34
Instead of using the open-coded "reg" property lookup and address translation in mpic_alloc(), directly call of_address_to_resource(). This includes various workarounds for special cases which the naive of_address_translate() does not. Afterwards it is possible to remove the copiously copy-pasted calls to of_address_translate() from the 85xx/86xx/powermac platforms. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-28powerpc/xics: Harden xics hypervisor backendAnton Blanchard1-11/+27
During kdump stress testing I sometimes see the kdump kernel panic with: Interrupt 0x306 (real) is invalid, disabling it. Kernel panic - not syncing: bad return code EOI - rc = -4, value=ff000306 Instead of panicing print the error message, dump the stack the first time it happens and continue on. Add some more information to the debug messages as well. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-25Merge remote-tracking branch 'kumar/next' into nextBenjamin Herrenschmidt9-1250/+1591
2011-11-25powerpc/mpic: Remove extra semicolon.Justin P. Mattock1-1/+1
The patch below removes an extra semicolon. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> CC: linuxppc-dev@lists.ozlabs.org CC: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-25powerpc: Mark IPI interrupts IRQF_NO_THREADThomas Gleixner1-1/+1
IPI handlers cannot be threaded. Remove the obsolete IRQF_DISABLED flag (see commit e58aa3d2) while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-24powerpc/fsl_msi: add support for the fsl, msi property in PCI nodesTimur Tabi2-0/+42
On Freescale parts with multiple MSI controllers, the controllers are combined into one "pool" of interrupts. Whenever a device requests an MSI interrupt, the next available interrupt from the pool is selected, regardless of which MSI controller the interrupt is from. This works because each PCI bus has an ATMU to all of CCSR, so any PCI device can access any MSI interrupt register. The fsl,msi property is used to specify that a given PCI bus should only use a specific MSI device. This is necessary, for example, with the Freescale hypervisor, because the MSI devices are assigned to specific partitions. Ideally, we'd like to be able to assign MSI devices to PCI busses within the MSI or PCI layers. However, there does not appear to be a mechanism to do that. Whenever the MSI layer wants to allocate an MSI interrupt to a PCI device, it just calls arch_setup_msi_irqs(). It would be nice if we could register an MSI device with a specific PCI bus. So instead we remember the phandles of each MSI device, and we use that to limit our search for an available interrupt. Whenever we are asked to allocate a new interrupt for a PCI device, we check the fsl,msi property of the PCI bus for that device. If it exists, then as we are looping over all MSI devices, we skip the ones that don't have a matching phandle. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24powerpc/85xx: Add lbc suspend support for PMJia Hongtao1-0/+36
Power supply for LBC registers is off when system go to deep-sleep state. We save the values of registers before suspend and restore to registers after resume. We removed the last two reservation arrays from struct fsl_lbc_regs for allocating less memory and minimizing the memcpy size. Signed-off-by: Jiang Yutang <b14898@freescale.com> Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24fsl-rio: Add two ports and rapidio message units supportLiu Gang3-423/+545
Usually, freescale rapidio endpoint can support one or two 1x or 4X LP-Serial link interfaces, and rapidio message transactions can be implemented by two message units. This adds the support of two rapidio ports and initializes message unit 0 and message unit 1. And these ports and message units can work simultaneously. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jin Qing <b24347@freescale.com> Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24fsl-rio: Split rio driver into two parts, RapidIO endpoint and message unitLiu Gang4-1128/+1267
The Freescale PowerPC RapidIO controller consists of a RapidIO endpoint and a RapidIO message unit(RMU). Or use RapidIO message manager(RMan) to replace the RMU in DPAA architecture. Therefore, we should split the code into two function modules according to the hardware architecture. Add new struct for RMU module, and new initialization function to set up RMU module. This policy is very conducive to adding new module like RMan, or adding multi-ports or message units support. Signed-off-by: Lian Minghuan <Minghuan.Lian@freescale.com> Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24arch/powerpc/sysdev/ehv_pic.c: add missing kfreeJulia Lawall1-0/+1
At this point, ehv_pic has been allocated but not stored anywhere, so it should be freed before leaving the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @exists@ local idexpression x; statement S,S1; expression E; identifier fl; expression *ptr != NULL; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...kfree(x)...+> } when any when != true x == NULL x->fl ...> ( if (x == NULL) S1 | if (...) { ... when != x when forall ( return \(0\|<+...x...+>\|ptr\); | * return ...; ) } ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24powerpc/fsl-lbc: Fix for fsl_upmAlexandre Rusev1-0/+1
If Freescale LBC driver fails to initialise itself from device tree, then internal structure is freed only but not NULL-fied. As result functions fsl_lbc_find() after checking the structure is not NULL are trying to access device registers. Signed-off-by: Alexandre Rusev <arusev@dev.rtsoft.ru> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-24powerpc/qe: Fixup QE_General4 errataJoakim Tjernlund1-1/+1
QE_General4 should only round up the divisor iff divisor is > 3. Rounding up lower divisors makes the error too big, causing USB on MPC832x to fail. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-15Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linuxLinus Torvalds1-1/+1
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: fsl-rio: fix compile error
2011-11-14fsl-rio: fix compile errorLiu Gang1-1/+1
The "#include <linux/module.h>" was replaced by "#include <linux/export.h>" in the patch "powerpc: various straight conversions from module.h --> export.h". This will cause the following compile problem: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_mcheck_exception': arch/powerpc/sysdev/fsl_rio.c:296: error: implicit declaration of function 'search_exception_tables'. The file fsl_rio.c needs the declaration of function "search_exception_tables" in the header file "linux/module.h". Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-11-08powerpc/irq: Remove IRQF_DISABLEDYong Zhang3-6/+3
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-11-06Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linuxLinus Torvalds22-10/+21
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-06Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds12-447/+385
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits) powerpc/p3060qds: Add support for P3060QDS board powerpc/83xx: Add shutdown request support to MCU handling on MPC8349 MITX powerpc/85xx: Make kexec to interate over online cpus powerpc/fsl_booke: Fix comment in head_fsl_booke.S powerpc/85xx: issue 15 EOI after core reset for FSL CoreNet devices powerpc/8xxx: Fix interrupt handling in MPC8xxx GPIO driver powerpc/85xx: Add 'fsl,pq3-gpio' compatiable for GPIO driver powerpc/86xx: Correct Gianfar support for GE boards powerpc/cpm: Clear muram before it is in use. drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-manager powerpc/fsl_msi: add support for "msi-address-64" property powerpc/85xx: Setup secondary cores PIR with hard SMP id powerpc/fsl-booke: Fix settlbcam for 64-bit powerpc/85xx: Adding DCSR node to dtsi device trees powerpc/85xx: clean up FPGA device tree nodes for Freecsale QorIQ boards powerpc/85xx: fix PHYS_64BIT selection for P1022DS powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map powerpc: respect mem= setting for early memory limit setup powerpc: Update corenet64_smp_defconfig powerpc: Update mpc85xx/corenet 32-bit defconfigs ... Fix up trivial conflicts in: - arch/powerpc/configs/40x/hcu4_defconfig removed stale file, edited elsewhere - arch/powerpc/include/asm/udbg.h, arch/powerpc/kernel/udbg.c: added opal and gelic drivers vs added ePAPR driver - drivers/tty/serial/8250.c moved UPIO_TSI to powerpc vs removed UPIO_DWAPB support
2011-11-04Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-6/+2
* 'for-3.2/core' of git://git.kernel.dk/linux-block: (29 commits) block: don't call blk_drain_queue() if elevator is not up blk-throttle: use queue_is_locked() instead of lockdep_is_held() blk-throttle: Take blkcg->lock while traversing blkcg->policy_list blk-throttle: Free up policy node associated with deleted rule block: warn if tag is greater than real_max_depth. block: make gendisk hold a reference to its queue blk-flush: move the queue kick into blk-flush: fix invalid BUG_ON in blk_insert_flush block: Remove the control of complete cpu from bio. block: fix a typo in the blk-cgroup.h file block: initialize the bounce pool if high memory may be added later block: fix request_queue lifetime handling by making blk_queue_cleanup() properly shutdown block: drop @tsk from attempt_plug_merge() and explain sync rules block: make get_request[_wait]() fail if queue is dead block: reorganize throtl_get_tg() and blk_throtl_bio() block: reorganize queue draining block: drop unnecessary blk_get/put_queue() in scsi_cmd_ioctl() and blk_get_tg() block: pass around REQ_* flags instead of broken down booleans during request alloc/free block: move blk_throtl prototypes to block/blk.h block: fix genhd refcounting in blkio_policy_parse_and_set() ... Fix up trivial conflicts due to "mddev_t" -> "struct mddev" conversion and making the request functions be of type "void" instead of "int" in - drivers/md/{faulty.c,linear.c,md.c,md.h,multipath.c,raid0.c,raid1.c,raid10.c,raid5.c} - drivers/staging/zram/zram_drv.c
2011-11-03powerpc/85xx: issue 15 EOI after core reset for FSL CoreNet devicesMatthew McClintock1-0/+10
This is listed as a requirement for Freescale CoreNet based devices (e.g p4080ds with MPIC v4.x) after issuing a core reset to properly clear pending interrupts. Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-02arch/powerpc/sysdev/fsl_rio.c: release rapidio port I/O region resource if port failed to initializeLiu Gang1-0/+1
The "struct rio_mport" contains a member of master port I/O memory resource structure "struct resource iores". This resource will be read from device tree and be used for rapidio R/W transaction memory space. Rapidio requests the port I/O memory resource under the root resource "iomem_resource". struct rio_mport *port; port = kzalloc(sizeof(struct rio_mport), GFP_KERNEL); request_resource(&iomem_resource, &port->iores); When port failed to initialize, allocated "rio_mport" structure memory will be freed, and the port I/O memory resource structure pointer "&port->iores" will be invalid. If other requests resource under "iomem_resource", "&port->iores" node may be operated in the child resources list and this will cause the system to crash. So the requested port I/O memory resource should be released before freeing allocated "rio_mport" structure. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31powerpc: remove non-required uses of include <linux/module.h>Paul Gortmaker2-2/+0
None of the files touched here are modules, and they are not exporting any symbols either -- so there is no need to be including the module.h. Builds of all the files remains successful. Even kernel/module.c does not need to include it, since it includes linux/moduleloader.h instead. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31powerpc: various straight conversions from module.h --> export.hPaul Gortmaker8-8/+8
All these files were including module.h just for the basic EXPORT_SYMBOL infrastructure. We can shift them off to the export.h header which is a way smaller footprint and thus realize some compile time gains. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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