summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/sysdev
Commit message (Collapse)AuthorAgeFilesLines
* mm, dax, pmem: introduce pfn_tDan Williams2016-01-151-5/+4
| | | | | | | | | | | | | | | | | | | | | | | For the purpose of communicating the optional presence of a 'struct page' for the pfn returned from ->direct_access(), introduce a type that encapsulates a page-frame-number plus flags. These flags contain the historical "page_link" encoding for a scatterlist entry, but can also denote "device memory". Where "device memory" is a set of pfns that are not part of the kernel's linear mapping by default, but are accessed via the same memory controller as ram. The motivation for this new type is large capacity persistent memory that needs struct page entries in the 'memmap' to support 3rd party DMA (i.e. O_DIRECT I/O with a persistent memory source/target). However, we also need it in support of maintaining a list of mapped inodes which need to be unmapped at driver teardown or freeze_bdev() time. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave@sr71.net> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'powerpc-4.5-1' of ↵Linus Torvalds2016-01-1516-3022/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Core: - Ground work for the new Power9 MMU from Aneesh Kumar K.V - Optimise FP/VMX/VSX context switching from Anton Blanchard Misc: - Various cleanups from Krzysztof Kozlowski, John Ogness, Rashmica Gupta, Russell Currey, Gavin Shan, Daniel Axtens, Michael Neuling, Andrew Donnellan - Allow wrapper to work on non-english system from Laurent Vivier - Add rN aliases to the pt_regs_offset table from Rashmica Gupta - Fix module autoload for rackmeter & axonram drivers from Luis de Bethencourt - Include KVM guest test in all interrupt vectors from Paul Mackerras - Fix DSCR inheritance over fork() from Anton Blanchard - Make value-returning atomics & {cmp}xchg* & their atomic_ versions fully ordered from Boqun Feng - Print MSR TM bits in oops messages from Michael Neuling - Add TM signal return & invalid stack selftests from Michael Neuling - Limit EPOW reset event warnings from Vipin K Parashar - Remove the Cell QPACE code from Rashmica Gupta - Append linux_banner to exception information in xmon from Rashmica Gupta - Add selftest to check if VSRs are corrupted from Rashmica Gupta - Remove broken GregorianDay() from Daniel Axtens - Import Anton's context_switch2 benchmark into selftests from Michael Ellerman - Add selftest script to test HMI functionality from Daniel Axtens - Remove obsolete OPAL v2 support from Stewart Smith - Make enter_rtas() private from Michael Ellerman - PPR exception cleanups from Michael Ellerman - Add page soft dirty tracking from Laurent Dufour - Add support for Nvlink NPUs from Alistair Popple - Add support for kexec on 476fpe from Alistair Popple - Enable kernel CPU dlpar from sysfs from Nathan Fontenot - Copy only required pieces of the mm_context_t to the paca from Michael Neuling - Add a kmsg_dumper that flushes OPAL console output on panic from Russell Currey - Implement save_stack_trace_regs() to enable kprobe stack tracing from Steven Rostedt - Add HWCAP bits for Power9 from Michael Ellerman - Fix _PAGE_PTE breaking swapoff from Aneesh Kumar K.V - Fix _PAGE_SWP_SOFT_DIRTY breaking swapoff from Hugh Dickins - scripts/recordmcount.pl: support data in text section on powerpc from Ulrich Weigand - Handle R_PPC64_ENTRY relocations in modules from Ulrich Weigand cxl: - cxl: Fix possible idr warning when contexts are released from Vaibhav Jain - cxl: use correct operator when writing pcie config space values from Andrew Donnellan - cxl: Fix DSI misses when the context owning task exits from Vaibhav Jain - cxl: fix build for GCC 4.6.x from Brian Norris - cxl: use -Werror only with CONFIG_PPC_WERROR from Brian Norris - cxl: Enable PCI device ID for future IBM CXL adapter from Uma Krishnan Freescale: - Freescale updates from Scott: Highlights include moving QE code out of arch/powerpc (to be shared with arm), device tree updates, and minor fixes" * tag 'powerpc-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (149 commits) powerpc/module: Handle R_PPC64_ENTRY relocations scripts/recordmcount.pl: support data in text section on powerpc powerpc/powernv: Fix OPAL_CONSOLE_FLUSH prototype and usages powerpc/mm: fix _PAGE_SWP_SOFT_DIRTY breaking swapoff powerpc/mm: Fix _PAGE_PTE breaking swapoff cxl: Enable PCI device ID for future IBM CXL adapter cxl: use -Werror only with CONFIG_PPC_WERROR cxl: fix build for GCC 4.6.x powerpc: Add HWCAP bits for Power9 powerpc/powernv: Reserve PE#0 on NPU powerpc/powernv: Change NPU PE# assignment powerpc/powernv: Fix update of NVLink DMA mask powerpc/powernv: Remove misleading comment in pci.c powerpc: Implement save_stack_trace_regs() to enable kprobe stack tracing powerpc: Fix build break due to paca mm_context_t changes cxl: Fix DSI misses when the context owning task exits MAINTAINERS: Update Scott Wood's e-mail address powerpc/powernv: Fix minor off-by-one error in opal_mce_check_early_recovery() powerpc: Fix style of self-test config prompts powerpc/powernv: Only delay opal_rtc_read() retry when necessary ...
| * powerpc/fsl_lbc: removal of dead codeRaghav Dogra2015-12-231-2/+0
| | | | | | | | | | | | | | The condition check is not used. Signed-off-by: Raghav Dogra <raghav@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * powerpc/85xx: Add PCIe controller support for bsc9132qdsHarninder Rai2015-12-221-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Use machine_arch_initcall to hook mpc85xx_common_publish_devices This can ensure before pcibios_init() is called, pci controllers have been probed and added to the hose_list. 2. Add a workaround for errata A-005434 For the BSC9132, PEX_PEXIWARn[TRGT] for all windows defaults to 0xF, which is mapped to CCSRBAR. However, for other products, 0xF is mapped to the local memory. Therefore, for the BSC9132, any default PCI Express access to the local memory (DDR) will now access the CCSRBAR. This patch changes the mapping of targets of inbound windows PEX_PEXIWARn[TRGT] to the Local address space – 0x0 (from 0xF). Signed-off-by: Harninder Rai <harninder.rai@freescale.com> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Hou Zhiqiang <B48286@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * QE: Move QE from arch/powerpc to drivers/socZhao Qiang2015-12-2214-3113/+1
| | | | | | | | | | | | | | | | | | ls1 has qe and ls1 has arm cpu. move qe from arch/powerpc to drivers/soc/fsl to adapt to powerpc and arm Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * QE: use subsys_initcall to init qeZhao Qiang2015-12-221-0/+13
| | | | | | | | | | | | | | | | Use subsys_initcall to init qe to adapt ARM architecture. Remove qe_reset from PowerPC platform file. Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * QE/CPM: move muram management functions to qe_commonZhao Qiang2015-12-224-209/+239
| | | | | | | | | | | | | | | | | | | | QE and CPM have the same muram, they use the same management functions. Now QE support both ARM and PowerPC, it is necessary to move QE to "driver/soc", so move the muram management functions from cpm_common to qe_common for preparing to move QE code to "driver/soc" Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * CPM/QE: use genalloc to manage CPM/QE muramZhao Qiang2015-12-221-38/+88
| | | | | | | | | | | | | | Use genalloc to manage CPM/QE muram instead of rheap. Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * powerpc/axonram: Fix module autoload for OF platform driverLuis de Bethencourt2015-11-261-0/+1
| | | | | | | | | | | | | | | | This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | EDAC, mpc85xx: Make mpc85xx-pci-edac a platform deviceScott Wood2015-12-112-10/+27
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally the mpc85xx-pci-edac driver bound directly to the PCI controller node. Commit 905e75c46dba ("powerpc/fsl-pci: Unify pci/pcie initialization code") turned the PCI controller code into a platform device. Since we can't have two drivers binding to the same device, the EDAC code was changed to be called into as a library-style submodule. However, this doesn't work if the EDAC driver is built as a module. Commit 8d8fcba6d1ea ("EDAC: Rip out the edac_subsys reference counting") exposed another problem with this approach -- mpc85xx_pci_err_probe() was being called in the same early boot phase that the PCI controller is initialized, rather than in the device_initcall phase that the EDAC layer expects. This caused a crash on boot. To fix this, the PCI controller code now creates a child platform device specifically for EDAC, which the mpc85xx-pci-edac driver binds to. Reported-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Daniel Axtens <dja@axtens.net> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Jia Hongtao <B38951@freescale.com> Cc: Jiri Kosina <jkosina@suse.com> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: linux-edac <linux-edac@vger.kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Masanari Iida <standby24x7@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Rob Herring <robh@kernel.org> Link: http://lkml.kernel.org/r/1449774432-18593-1-git-send-email-scottwood@freescale.com Signed-off-by: Borislav Petkov <bp@suse.de>
* Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-blockLinus Torvalds2015-11-101-2/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block IO poll support from Jens Axboe: "Various groups have been doing experimentation around IO polling for (really) fast devices. The code has been reviewed and has been sitting on the side for a few releases, but this is now good enough for coordinated benchmarking and further experimentation. Currently O_DIRECT sync read/write are supported. A framework is in the works that allows scalable stats tracking so we can auto-tune this. And we'll add libaio support as well soon. Fow now, it's an opt-in feature for test purposes" * 'for-4.4/io-poll' of git://git.kernel.dk/linux-block: direct-io: be sure to assign dio->bio_bdev for both paths directio: add block polling support NVMe: add blk polling support block: add block polling support blk-mq: return tag/queue combo in the make_request_fn handlers block: change ->make_request_fn() and users to return a queue cookie
| * block: change ->make_request_fn() and users to return a queue cookieJens Axboe2015-11-071-2/+3
| | | | | | | | | | | | | | | | | | No functional changes in this patch, but it prepares us for returning a more useful cookie related to the IO that was queued up. Signed-off-by: Jens Axboe <axboe@fb.com> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com>
* | Merge tag 'powerpc-4.4-1' of ↵Linus Torvalds2015-11-056-54/+83
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Kconfig: remove BE-only platforms from LE kernel build from Boqun Feng - Refresh ps3_defconfig from Geoff Levand - Emit GNU & SysV hashes for the vdso from Michael Ellerman - Define an enum for the bolted SLB indexes from Anshuman Khandual - Use a local to avoid multiple calls to get_slb_shadow() from Michael Ellerman - Add gettimeofday() benchmark from Michael Neuling - Avoid link stack corruption in __get_datapage() from Michael Neuling - Add virt_to_pfn and use this instead of opencoding from Aneesh Kumar K.V - Add ppc64le_defconfig from Michael Ellerman - pseries: extract of_helpers module from Andy Shevchenko - Correct string length in pseries_of_derive_parent() from Nathan Fontenot - Free the MSI bitmap if it was slab allocated from Denis Kirjanov - Shorten irq_chip name for the SIU from Christophe Leroy - Wait 1s for secondaries to enter OPAL during kexec from Samuel Mendoza-Jonas - Fix _ALIGN_* errors due to type difference, from Aneesh Kumar K.V - powerpc/pseries/hvcserver: don't memset pi_buff if it is null from Colin Ian King - Disable hugepd for 64K page size, from Aneesh Kumar K.V - Differentiate between hugetlb and THP during page walk from Aneesh Kumar K.V - Make PCI non-optional for pseries from Michael Ellerman - Individual System V IPC system calls from Sam bobroff - Add selftest of unmuxed IPC calls from Michael Ellerman - discard .exit.data at runtime from Stephen Rothwell - Delete old orphaned PrPMC 280/2800 DTS and boot file, from Paul Gortmaker - Use of_get_next_parent to simplify code from Christophe Jaillet - Paginate some xmon output from Sam bobroff - Add some more elements to the xmon PACA dump from Michael Ellerman - Allow the tm-syscall selftest to build with old headers from Michael Ellerman - Run EBB selftests only on POWER8 from Denis Kirjanov - Drop CONFIG_TUNE_CELL in favour of CONFIG_CELL_CPU from Michael Ellerman - Avoid reference to potentially freed memory in prom.c from Christophe Jaillet - Quieten boot wrapper output with run_cmd from Geoff Levand - EEH fixes and cleanups from Gavin Shan - Fix recursive fenced PHB on Broadcom shiner adapter from Gavin Shan - Use of_get_next_parent() in of_get_ibm_chip_id() from Michael Ellerman - Fix section mismatch warning in msi_bitmap_alloc() from Denis Kirjanov - Fix ps3-lpm white space from Rudhresh Kumar J - Fix ps3-vuart null dereference from Colin King - nvram: Add missing kfree in error path from Christophe Jaillet - nvram: Fix function name in some errors messages, from Christophe Jaillet - drivers/macintosh: adb: fix misleading Kconfig help text from Aaro Koskinen - agp/uninorth: fix a memleak in create_gatt_table from Denis Kirjanov - cxl: Free virtual PHB when removing from Andrew Donnellan - scripts/kconfig/Makefile: Allow KBUILD_DEFCONFIG to be a target from Michael Ellerman - scripts/kconfig/Makefile: Fix KBUILD_DEFCONFIG check when building with O= from Michael Ellerman - Freescale updates from Scott: Highlights include 64-bit book3e kexec/kdump support, a rework of the qoriq clock driver, device tree changes including qoriq fman nodes, support for a new 85xx board, and some fixes. - MPC5xxx updates from Anatolij: Highlights include a driver for MPC512x LocalPlus Bus FIFO with its device tree binding documentation, mpc512x device tree updates and some minor fixes. * tag 'powerpc-4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (106 commits) powerpc/msi: Fix section mismatch warning in msi_bitmap_alloc() powerpc/prom: Use of_get_next_parent() in of_get_ibm_chip_id() powerpc/pseries: Correct string length in pseries_of_derive_parent() powerpc/e6500: hw tablewalk: make sure we invalidate and write to the same tlb entry powerpc/mpc85xx: Add FSL QorIQ DPAA FMan support to the SoC device tree(s) powerpc/mpc85xx: Create dts components for the FSL QorIQ DPAA FMan powerpc/fsl: Add #clock-cells and clockgen label to clockgen nodes powerpc: handle error case in cpm_muram_alloc() powerpc: mpic: use IRQCHIP_SKIP_SET_WAKE instead of redundant mpic_irq_set_wake powerpc/book3e-64: Enable kexec powerpc/book3e-64/kexec: Set "r4 = 0" when entering spinloop powerpc/booke: Only use VIRT_PHYS_OFFSET on booke32 powerpc/book3e-64/kexec: Enable SMP release powerpc/book3e-64/kexec: create an identity TLB mapping powerpc/book3e-64: Don't limit paca to 256 MiB powerpc/book3e/kdump: Enable crash_kexec_wait_realmode powerpc/book3e: support CONFIG_RELOCATABLE powerpc/booke64: Fix args to copy_and_flush powerpc/book3e-64: rename interrupt_end_book3e with __end_interrupts powerpc/e6500: kexec: Handle hardware threads ...
| * \ Merge branch 'next' of ↵Michael Ellerman2015-11-023-44/+68
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next Freescale updates from Scott: "Highlights include 64-bit book3e kexec/kdump support, a rework of the qoriq clock driver, device tree changes including qoriq fman nodes, support for a new 85xx board, and some fixes. Note that there is a trivial merge conflict with the clock tree's next branch, in the clock Makefile."
| | * | powerpc: handle error case in cpm_muram_alloc()Christophe Leroy2015-10-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | rh_alloc() returns (unsigned long)-ERRxx on error, which may result in overwriting memory outside the MURAM AREA. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <scottwood@freescale.com>
| | * | powerpc: mpic: use IRQCHIP_SKIP_SET_WAKE instead of redundant mpic_irq_set_wakeSudeep Holla2015-10-271-19/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpic_irq_set_wake return -ENXIO for non FSL MPIC and sets IRQF_NO_SUSPEND flag for FSL ones. enable_irq_wake already returns -ENXIO if irq_set_wak is not implemented. Also there's no need to set the IRQF_NO_SUSPEND flag as it doesn't guarantee wakeup for that interrupt. This patch removes the redundant mpic_irq_set_wake and sets the IRQCHIP_SKIP_SET_WAKE for only FSL MPIC. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Scott Wood <scottwood@freescale.com> Cc: Hongtao Jia <hongtao.jia@freescale.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
| | * | powerpc/fsl_pci: Don't set up inbound windows in kdump crash kernelScott Wood2015-10-171-23/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise, because the top end of the crash kernel is treated as the absolute top of memory rather than the beginning of a reserved region, in-flight DMA from the previous kernel that targets areas above the crash kernel can trigger a storm of PCI errors. We only do this for kdump, not normal kexec, in case kexec is being used to upgrade to a kernel that wants a different inbound memory map. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Mingkai Hu <Mingkai.hu@freescale.com>
| | * | powerpc/fsl_pci: Check for get_user/probe_kernel_address failureScott Wood2015-10-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Reported-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Hongtao Jia <hongtao.jia@freescale.com>
| * | | powerpc/msi: Fix section mismatch warning in msi_bitmap_alloc()Denis Kirjanov2015-10-281-1/+1
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Building with CONFIG_DEBUG_SECTION_MISMATCH gives the following warning: The function .msi_bitmap_alloc() references the function __init .memblock_virt_alloc_try_nid(). Memory allocation in msi_bitmap_alloc() uses either slab allocator or memblock boot time allocator depending on slab_is_available(). So the section mismatch warning is correct, but in practice there is no bug so mark msi_bitmap_alloc() as __init_refok. Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org> [mpe: Flesh out change log a bit] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | powerpc/mpc5xxx: Use of_get_next_parent to simplify codeChristophe Jaillet2015-10-151-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | of_get_next_parent can be used to simplify the while() loop and avoid the need of a temp variable. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | powerpc/8xx: Shorten irq_chip name for the SIUChristophe Leroy2015-10-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | show_interrupts() expects the irq_chip name to be max 8 characters otherwise everything get misaligned # cat /proc/interrupts CPU0 17: 0 CPM PIC 0 Level error 19: 0 MPC8XX SIU 15 Level tbint 20: 90 CPM PIC 4 Level cpm_uart 38: 29746 MPC8XX SIU 5 Level fs_enet-mac 39: 0 MPC8XX SIU 7 Level fs_enet-mac 47: 401 CPM PIC 5 Level fsl_spi 68: 1 MPC8XX SIU 2 Level phy_interrupt, phy_interrupt, phy_interrupt LOC: 7225485 Local timer interrupts for timer event device LOC: 9 Local timer interrupts for others SPU: 0 Spurious interrupts PMI: 0 Performance monitoring interrupts MCE: 0 Machine check exceptions Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | powerpc/msi: Free the bitmap if it was slab allocatedDenis Kirjanov2015-10-051-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During the MSI bitmap test on boot kmemleak spews the following trace: unreferenced object 0xc00000016e86c900 (size 64): comm "swapper/0", pid 1, jiffies 4294893173 (age 518.024s) hex dump (first 32 bytes): 00 00 01 ff 7f ff 7f 37 00 00 00 00 00 00 00 00 .......7........ ff ff ff ff ff ff ff ff 01 ff ff ff ff ff ff ff ................ backtrace: [<c00000000003eebc>] .zalloc_maybe_bootmem+0x3c/0x380 [<c000000000042d6c>] .msi_bitmap_alloc+0x3c/0xb0 [<c000000000a9aff8>] .msi_bitmap_selftest+0x30/0x2b4 [<c0000000000090f4>] .do_one_initcall+0xd4/0x270 [<c000000000a8e250>] .kernel_init_freeable+0x1a0/0x280 [<c000000000009b5c>] .kernel_init+0x1c/0x120 [<c000000000007fbc>] .ret_from_kernel_thread+0x58/0x9c Add a flag to msi_bitmap for tracking allocations from slab and memblock so we can properly free/handle memory in msi_bitmap_free(). Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> [mpe: Reword changelog & use bitmap_from_slab in the if] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | | uaccess: reimplement probe_kernel_address() using probe_kernel_read()Andrew Morton2015-11-051-1/+1
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | probe_kernel_address() is basically the same as the (later added) probe_kernel_read(). The return value on EFAULT is a bit different: probe_kernel_address() returns number-of-bytes-not-copied whereas probe_kernel_read() returns -EFAULT. All callers have been checked, none cared. probe_kernel_read() can be overridden by the architecture whereas probe_kernel_address() cannot. parisc, blackfin and um do this, to insert additional checking. Hence this patch possibly fixes obscure bugs, although there are only two probe_kernel_address() callsites outside arch/. My first attempt involved removing probe_kernel_address() entirely and converting all callsites to use probe_kernel_read() directly, but that got tiresome. This patch shrinks mm/slab_common.o by 218 bytes. For a single probe_kernel_address() callsite. Cc: Steven Miao <realmz6@gmail.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | irqdomain: Use irq_domain_get_of_node() instead of direct field accessMarc Zyngier2015-10-137-7/+12
|/ | | | | | | | | | | | | | | | | | | | | | | The struct irq_domain contains a "struct device_node *" field (of_node) that is almost the only link between the irqdomain and the device tree infrastructure. In order to prepare for the removal of that field, convert all users to use irq_domain_get_of_node() instead. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2015-09-1812-16/+14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This is a rather large update post rc1 due to the final steps of cleanups and API changes which had to wait for the preparatory patches to hit your tree. - Regression fixes for ARM GIC irqchips - Regression fixes and lockdep anotations for renesas irq chips - The leftovers of the cleanup and preparatory patches which have been ignored by maintainers - Final conversions of the newly merged users of obsolete APIs - Final removal of obsolete APIs - Final removal of ARM artifacts which had been introduced during the conversion of ARM to the generic interrupt code. - Final split of the irq_data into chip specific and common data to reflect the needs of hierarchical irq domains. - Treewide removal of the first argument of interrupt flow handlers, i.e. the irq number, which is not used by the majority of handlers and simple to retrieve from the other argument the irq descriptor. - A few comment updates and build warning fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) arm64: Remove ununsed set_irq_flags ARM: Remove ununsed set_irq_flags sh: Kill off set_irq_flags usage irqchip: Kill off set_irq_flags usage gpu/drm: Kill off set_irq_flags usage genirq: Remove irq argument from irq flow handlers genirq: Move field 'msi_desc' from irq_data into irq_common_data genirq: Move field 'affinity' from irq_data into irq_common_data genirq: Move field 'handler_data' from irq_data into irq_common_data genirq: Move field 'node' from irq_data into irq_common_data irqchip/gic-v3: Use IRQD_FORWARDED_TO_VCPU flag irqchip/gic: Use IRQD_FORWARDED_TO_VCPU flag genirq: Provide IRQD_FORWARDED_TO_VCPU status flag genirq: Simplify irq_data_to_desc() genirq: Remove __irq_set_handler_locked() pinctrl/pistachio: Use irq_set_handler_locked gpio: vf610: Use irq_set_handler_locked powerpc/mpc8xx: Use irq_set_handler_locked() powerpc/ipic: Use irq_set_handler_locked() powerpc/cpm2: Use irq_set_handler_locked() ...
| * genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-167-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
| * powerpc/mpc8xx: Use irq_set_handler_locked()Thomas Gleixner2015-09-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle: @@ struct irq_data *d; expression E1; @@ -__irq_set_handler_locked(d->irq, E1); +irq_set_handler_locked(d, E1); Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org
| * powerpc/ipic: Use irq_set_handler_locked()Thomas Gleixner2015-09-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle: @@ struct irq_data *d; expression E1; @@ -__irq_set_handler_locked(d->irq, E1); +irq_set_handler_locked(d, E1); Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Anton Blanchard <anton@samba.org> Cc: linuxppc-dev@lists.ozlabs.org
| * powerpc/cpm2: Use irq_set_handler_locked()Thomas Gleixner2015-09-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle: @@ struct irq_data *d; expression E1; @@ -__irq_set_handler_locked(d->irq, E1); +irq_set_handler_locked(d, E1); Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org
| * powerpc, irq: Use access helper irq_data_get_affinity_mask()Jiang Liu2015-09-152-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Use access helper irq_data_get_affinity_mask() so we can move the affinity mask to irq_common_data. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1433145945-789-25-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge tag 'powerpc-4.3-2' of ↵Linus Torvalds2015-09-183-6/+9
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix 32-bit TCE table init in kdump kernel from Nish - Fix kdump with non-power-of-2 crashkernel= from Nish - Abort cxl_pci_enable_device_hook() if PCI channel is offline from Andrew - Fix to release DRC when configure_connector() fails from Bharata - Wire up sys_userfaultfd() - Fix race condition in tearing down MSI interrupts from Paul - Fix unbalanced pci_dev_get() in cxl_probe() from Daniel - Fix cxl build failure due to -Wunused-variable gcc behaviour change from Ian - Tell the toolchain to use ABI v2 when building an LE boot wrapper from Benh - Fix THP to recompute hash value after a failed update from Aneesh - 32-bit memcpy/memset: only use dcbz once cache is enabled from Christophe * tag 'powerpc-4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc32: memset: only use dcbz once cache is enabled powerpc32: memcpy: only use dcbz once cache is enabled powerpc/mm: Recompute hash value after a failed update powerpc/boot: Specify ABI v2 when building an LE boot wrapper cxl: Fix build failure due to -Wunused-variable behaviour change cxl: Fix unbalanced pci_dev_get in cxl_probe powerpc/MSI: Fix race condition in tearing down MSI interrupts powerpc: Wire up sys_userfaultfd() powerpc/pseries: Release DRC when configure_connector fails cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline powerpc/powernv/pci-ioda: fix kdump with non-power-of-2 crashkernel= powerpc/powernv/pci-ioda: fix 32-bit TCE table init in kdump kernel
| * powerpc/MSI: Fix race condition in tearing down MSI interruptsPaul Mackerras2015-09-103-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a race which can result in the same virtual IRQ number being assigned to two different MSI interrupts. The most visible consequence of that is usually a warning and stack trace from the sysfs code about an attempt to create a duplicate entry in sysfs. The race happens when one CPU (say CPU 0) is disposing of an MSI while another CPU (say CPU 1) is setting up an MSI. CPU 0 calls (for example) pnv_teardown_msi_irqs(), which calls msi_bitmap_free_hwirqs() to indicate that the MSI (i.e. its hardware IRQ number) is no longer in use. Then, before CPU 0 gets to calling irq_dispose_mapping() to free up the virtal IRQ number, CPU 1 comes in and calls msi_bitmap_alloc_hwirqs() to allocate an MSI, and gets the same hardware IRQ number that CPU 0 just freed. CPU 1 then calls irq_create_mapping() to get a virtual IRQ number, which sees that there is currently a mapping for that hardware IRQ number and returns the corresponding virtual IRQ number (which is the same virtual IRQ number that CPU 0 was using). CPU 0 then calls irq_dispose_mapping() and frees that virtual IRQ number. Now, if another CPU comes along and calls irq_create_mapping(), it is likely to get the virtual IRQ number that was just freed, resulting in the same virtual IRQ number apparently being used for two different hardware interrupts. To fix this race, we just move the call to msi_bitmap_free_hwirqs() to after the call to irq_dispose_mapping(). Since virq_to_hw() doesn't work for the virtual IRQ number after irq_dispose_mapping() has been called, we need to call it before irq_dispose_mapping() and remember the result for the msi_bitmap_free_hwirqs() call. The pattern of calling msi_bitmap_free_hwirqs() before irq_dispose_mapping() appears in 5 places under arch/powerpc, and appears to have originated in commit 05af7bd2d75e ("[POWERPC] MPIC U3/U4 MSI backend") from 2007. Fixes: 05af7bd2d75e ("[POWERPC] MPIC U3/U4 MSI backend") Cc: stable@vger.kernel.org # v2.6.22+ Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | Merge tag 'libnvdimm-for-4.3' of ↵Linus Torvalds2015-09-081-3/+4
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "This update has successfully completed a 0day-kbuild run and has appeared in a linux-next release. The changes outside of the typical drivers/nvdimm/ and drivers/acpi/nfit.[ch] paths are related to the removal of IORESOURCE_CACHEABLE, the introduction of memremap(), and the introduction of ZONE_DEVICE + devm_memremap_pages(). Summary: - Introduce ZONE_DEVICE and devm_memremap_pages() as a generic mechanism for adding device-driver-discovered memory regions to the kernel's direct map. This facility is used by the pmem driver to enable pfn_to_page() operations on the page frames returned by DAX ('direct_access' in 'struct block_device_operations'). For now, the 'memmap' allocation for these "device" pages comes from "System RAM". Support for allocating the memmap from device memory will arrive in a later kernel. - Introduce memremap() to replace usages of ioremap_cache() and ioremap_wt(). memremap() drops the __iomem annotation for these mappings to memory that do not have i/o side effects. The replacement of ioremap_cache() with memremap() is limited to the pmem driver to ease merging the api change in v4.3. Completion of the conversion is targeted for v4.4. - Similar to the usage of memcpy_to_pmem() + wmb_pmem() in the pmem driver, update the VFS DAX implementation and PMEM api to provide persistence guarantees for kernel operations on a DAX mapping. - Convert the ACPI NFIT 'BLK' driver to map the block apertures as cacheable to improve performance. - Miscellaneous updates and fixes to libnvdimm including support for issuing "address range scrub" commands, clarifying the optimal 'sector size' of pmem devices, a clarification of the usage of the ACPI '_STA' (status) property for DIMM devices, and other minor fixes" * tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (34 commits) libnvdimm, pmem: direct map legacy pmem by default libnvdimm, pmem: 'struct page' for pmem libnvdimm, pfn: 'struct page' provider infrastructure x86, pmem: clarify that ARCH_HAS_PMEM_API implies PMEM mapped WB add devm_memremap_pages mm: ZONE_DEVICE for "device memory" mm: move __phys_to_pfn and __pfn_to_phys to asm/generic/memory_model.h dax: drop size parameter to ->direct_access() nd_blk: change aperture mapping from WC to WB nvdimm: change to use generic kvfree() pmem, dax: have direct_access use __pmem annotation dax: update I/O path to do proper PMEM flushing pmem: add copy_from_iter_pmem() and clear_pmem() pmem, x86: clean up conditional pmem includes pmem: remove layer when calling arch_has_wmb_pmem() pmem, x86: move x86 PMEM API to new pmem.h header libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a tristate option pmem: switch to devm_ allocations devres: add devm_memremap libnvdimm, btt: write and validate parent_uuid ...
| * dax: drop size parameter to ->direct_access()Dan Williams2015-08-271-1/+1
| | | | | | | | | | | | | | | | | | None of the implementations currently use it. The common bdev_direct_access() entry point handles all the size checks before calling ->direct_access(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| * pmem, dax: have direct_access use __pmem annotationRoss Zwisler2015-08-201-3/+4
| | | | | | | | | | | | | | | | | | | | Update the annotation for the kaddr pointer returned by direct_access() so that it is a __pmem pointer. This is consistent with the PMEM driver and with how this direct_access() pointer is used in the DAX code. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* | Merge tag 'powerpc-4.3-1' of ↵Linus Torvalds2015-09-033-16/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask from Benjamin Herrenschmidt - EEH fixes for SRIOV from Gavin - introduce rtas_get_sensor_fast() for IRQ handlers from Thomas Huth - use hardware RNG for arch_get_random_seed_* not arch_get_random_* from Paul Mackerras - seccomp filter support from Michael Ellerman - opal_cec_reboot2() handling for HMIs & machine checks from Mahesh Salgaonkar - add powerpc timebase as a trace clock source from Naveen N. Rao - misc cleanups in the xmon, signal & SLB code from Anshuman Khandual - add an inline function to update POWER8 HID0 from Gautham R. Shenoy - fix pte_pagesize_index() crash on 4K w/64K hash from Michael Ellerman - drop support for 64K local store on 4K kernels from Michael Ellerman - move dma_get_required_mask() from pnv_phb to pci_controller_ops from Andrew Donnellan - initialize distance lookup table from drconf path from Nikunj A Dadhania - enable RTC class support from Vaibhav Jain - disable automatically blocked PCI config from Gavin Shan - add LEDs driver for PowerNV platform from Vasant Hegde - fix endianness issues in the HVSI driver from Laurent Dufour - kexec endian fixes from Samuel Mendoza-Jonas - fix corrupted pdn list from Gavin Shan - fix fenced PHB caused by eeh_slot_error_detail() from Gavin Shan - Freescale updates from Scott: Highlights include 32-bit memcpy/memset optimizations, checksum optimizations, 85xx config fragments and updates, device tree updates, e6500 fixes for non-SMP, and misc cleanup and minor fixes. - a ton of cxl updates & fixes: - add explicit precision specifiers from Rasmus Villemoes - use more common format specifier from Rasmus Villemoes - destroy cxl_adapter_idr on module_exit from Johannes Thumshirn - destroy afu->contexts_idr on release of an afu from Johannes Thumshirn - compile with -Werror from Daniel Axtens - EEH support from Daniel Axtens - plug irq_bitmap getting leaked in cxl_context from Vaibhav Jain - add alternate MMIO error handling from Ian Munsie - allow release of contexts which have been OPENED but not STARTED from Andrew Donnellan - remove use of macro DEFINE_PCI_DEVICE_TABLE from Vaishali Thakkar - release irqs if memory allocation fails from Vaibhav Jain - remove racy attempt to force EEH invocation in reset from Daniel Axtens - fix + cleanup error paths in cxl_dev_context_init from Ian Munsie - fix force unmapping mmaps of contexts allocated through the kernel api from Ian Munsie - set up and enable PSL Timebase from Philippe Bergheaud * tag 'powerpc-4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (140 commits) cxl: Set up and enable PSL Timebase cxl: Fix force unmapping mmaps of contexts allocated through the kernel api cxl: Fix + cleanup error paths in cxl_dev_context_init powerpc/eeh: Fix fenced PHB caused by eeh_slot_error_detail() powerpc/pseries: Cleanup on pci_dn_reconfig_notifier() powerpc/pseries: Fix corrupted pdn list powerpc/powernv: Enable LEDS support powerpc/iommu: Set default DMA offset in dma_dev_setup cxl: Remove racy attempt to force EEH invocation in reset cxl: Release irqs if memory allocation fails cxl: Remove use of macro DEFINE_PCI_DEVICE_TABLE powerpc/powernv: Fix mis-merge of OPAL support for LEDS driver powerpc/powernv: Reset HILE before kexec_sequence() powerpc/kexec: Reset secondary cpu endianness before kexec powerpc/hvsi: Fix endianness issues in the HVSI driver leds/powernv: Add driver for PowerNV platform powerpc/powernv: Create LED platform device powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states powerpc/powernv: Fix the log message when disabling VF cxl: Allow release of contexts which have been OPENED but not STARTED ...
| * \ Merge branch 'next' of ↵Michael Ellerman2015-08-271-1/+1
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next Freescale updates from Scott: "Highlights include 32-bit memcpy/memset optimizations, checksum optimizations, 85xx config fragments and updates, device tree updates, e6500 fixes for non-SMP, and misc cleanup and minor fixes."
| | * | powerpc: use memset_io() to clear CPM MuramLEROY Christophe2015-08-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | CPM muram is not cached, so use memset_io() instead of memset() Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <scottwood@freescale.com>
| * | | powerpc/4xx: Fix return value check in hsta_msi_probe()Wei Yongjun2015-08-061-2/+2
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | In case of error, the functions platform_get_resource() and kmalloc() returns NULL not ERR_PTR(). The IS_ERR() test in the return value check should be replaced with NULL test. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * / powerpc/iommu: Cleanup setting of DMA base/offsetBenjamin Herrenschmidt2015-07-131-13/+3
| |/ | | | | | | | | | | | | | | Now that the table and the offset can co-exist, we no longer need to flip/flop, we can just establish both once at boot time. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | Merge branch 'for-4.3/core' of git://git.kernel.dk/linux-blockLinus Torvalds2015-09-021-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull core block updates from Jens Axboe: "This first core part of the block IO changes contains: - Cleanup of the bio IO error signaling from Christoph. We used to rely on the uptodate bit and passing around of an error, now we store the error in the bio itself. - Improvement of the above from myself, by shrinking the bio size down again to fit in two cachelines on x86-64. - Revert of the max_hw_sectors cap removal from a revision again, from Jeff Moyer. This caused performance regressions in various tests. Reinstate the limit, bump it to a more reasonable size instead. - Make /sys/block/<dev>/queue/discard_max_bytes writeable, by me. Most devices have huge trim limits, which can cause nasty latencies when deleting files. Enable the admin to configure the size down. We will look into having a more sane default instead of UINT_MAX sectors. - Improvement of the SGP gaps logic from Keith Busch. - Enable the block core to handle arbitrarily sized bios, which enables a nice simplification of bio_add_page() (which is an IO hot path). From Kent. - Improvements to the partition io stats accounting, making it faster. From Ming Lei. - Also from Ming Lei, a basic fixup for overflow of the sysfs pending file in blk-mq, as well as a fix for a blk-mq timeout race condition. - Ming Lin has been carrying Kents above mentioned patches forward for a while, and testing them. Ming also did a few fixes around that. - Sasha Levin found and fixed a use-after-free problem introduced by the bio->bi_error changes from Christoph. - Small blk cgroup cleanup from Viresh Kumar" * 'for-4.3/core' of git://git.kernel.dk/linux-block: (26 commits) blk: Fix bio_io_vec index when checking bvec gaps block: Replace SG_GAPS with new queue limits mask block: bump BLK_DEF_MAX_SECTORS to 2560 Revert "block: remove artifical max_hw_sectors cap" blk-mq: fix race between timeout and freeing request blk-mq: fix buffer overflow when reading sysfs file of 'pending' Documentation: update notes in biovecs about arbitrarily sized bios block: remove bio_get_nr_vecs() fs: use helper bio_add_page() instead of open coding on bi_io_vec block: kill merge_bvec_fn() completely md/raid5: get rid of bio_fits_rdev() md/raid5: split bio for chunk_aligned_read block: remove split code in blkdev_issue_{discard,write_same} btrfs: remove bio splitting and merge_bvec_fn() calls bcache: remove driver private bio splitting code block: simplify bio_add_page() block: make generic_make_request handle arbitrarily sized bios blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL) block: don't access bio->bi_error after bio_put() block: shrink struct bio down to 2 cache lines again ...
| * | block: add a bi_error field to struct bioChristoph Hellwig2015-07-291-1/+1
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we have two different ways to signal an I/O error on a BIO: (1) by clearing the BIO_UPTODATE flag (2) by returning a Linux errno value to the bi_end_io callback The first one has the drawback of only communicating a single possible error (-EIO), and the second one has the drawback of not beeing persistent when bios are queued up, and are not passed along from child to parent bio in the ever more popular chaining scenario. Having both mechanisms available has the additional drawback of utterly confusing driver authors and introducing bugs where various I/O submitters only deal with one of them, and the others have to add boilerplate code to deal with both kinds of error returns. So add a new bi_error field to store an errno value directly in struct bio and remove the existing mechanisms to clean all this up. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: NeilBrown <neilb@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
* | Merge branch 'for-next' of ↵Linus Torvalds2015-09-011-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "The usual stuff from trivial tree for 4.3 (kerneldoc updates, printk() fixes, Documentation and MAINTAINERS updates)" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits) MAINTAINERS: update my e-mail address mod_devicetable: add space before */ scsi: a100u2w: trivial typo in printk i2c: Fix typo in i2c-bfin-twi.c treewide: fix typos in comment blocks Doc: fix trivial typo in SubmittingPatches proportions: Spelling s/consitent/consistent/ dm: Spelling s/consitent/consistent/ aic7xxx: Fix typo in error message pcmcia: Fix typo in locking documentation scsi/arcmsr: Fix typos in error log drm/nouveau/gr: Fix typo in nv10.c [SCSI] Fix printk typos in drivers/scsi staging: comedi: Grammar s/Enable support a/Enable support for a/ Btrfs: Spelling s/consitent/consistent/ README: GTK+ is a acronym ASoC: omap: Fix typo in config option description mm: tlb.c: Fix error message ntfs: super.c: Fix error log fix typo in Documentation/SubmittingPatches ...
| * | treewide: Fix typo in printkMasanari Iida2015-08-071-1/+1
| |/ | | | | | | | | | | | | | | This patch fix spelling typo inv various part of sources. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
* | genirq/irqdomain: Allow irq domain aliasingMarc Zyngier2015-07-306-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is not uncommon (at least with the ARM stuff) to have a piece of hardware that implements different flavours of "interrupts". A typical example of this is the GICv3 ITS, which implements standard PCI/MSI support, but also some form of "generic MSI". So far, the PCI/MSI domain is registered using the ITS device_node, so that irq_find_host can return it. On the contrary, the raw MSI domain is not registered with an device_node, making it impossible to be looked up by another subsystem (obviously, using the same device_node twice would only result in confusion, as it is not defined which one irq_find_host would return). A solution to this is to "type" domains that may be aliasing, and to be able to lookup an device_node that matches a given type. For this, we introduce irq_find_matching_host() as a superset of irq_find_host: struct irq_domain *irq_find_matching_host(struct device_node *node, enum irq_domain_bus_token bus_token); where bus_token is the "type" we want to match the domain against (so far, only DOMAIN_BUS_ANY is defined). This result in some moderately invasive changes on the PPC side (which is the only user of the .match method). This has otherwise no functionnal change. Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Yijing Wang <wangyijing@huawei.com> Cc: Ma Jun <majun258@huawei.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Duc Dang <dhdang@apm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1438091186-10244-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge branch 'linus' into irq/coreThomas Gleixner2015-07-301-0/+1
|\| | | | | | | Pull in upstream fixes before applying conflicting changes
| * powerpc/ppc4xx_hsta_msi: Include ppc-pci.h to fix reference to hose_listDaniel Axtens2015-07-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | An earlier commit referenced 'hose_list' in sysdev/ppc4xx_hsta_msi.c. hose_list is defined in ppc-pci.h, which was not included in that file. Include it, fixing the build for the akebono defconfig used by the kbuild test robot. Fixes: f2c800aaceb6 ("powerpc/ppc4xx_hsta_msi: Move MSI-related ops to pci_controller_ops") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | powerpc/PCI: Use for_pci_msi_entry() to access MSI device listJiang Liu2015-07-224-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use accessor for_each_pci_msi_entry() to access MSI device list, so we could easily move msi_list from struct pci_dev into struct device later. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Stuart Yoder <stuart.yoder@freescale.com> Cc: Yijing Wang <wangyijing@huawei.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Olof Johansson <olof@lixom.net> Cc: Gavin Shan <gwshan@linux.vnet.ibm.com> Cc: Alexey Kardashevskiy <aik@ozlabs.ru> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Daniel Axtens <dja@axtens.net> Cc: Wei Yang <weiyang@linux.vnet.ibm.com> Cc: Nishanth Aravamudan <nacc@linux.vnet.ibm.com> Cc: Alexander Gordeev <agordeev@redhat.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Laurentiu Tudor <Laurentiu.Tudor@freescale.com> Cc: Tudor Laurentiu <b10716@freescale.com> Cc: Hongtao Jia <hongtao.jia@freescale.com> Link: http://lkml.kernel.org/r/1436428847-8886-4-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | treewide: Use helper function to access irq_data->msi_descJiang Liu2015-07-162-2/+2
|/ | | | | | | | | | | | | | | Use irq_data access helper to access irq_data->msi_desc, so we can move msi_desc from struct irq_data into struct irq_common_data later. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Chris Metcalf <cmetcalf@ezchip.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge tag 'module_init-alternate_initcall-v4.1-rc8' of ↵Linus Torvalds2015-07-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull module_init replacement part two from Paul Gortmaker: "Replace module_init with appropriate alternate initcall in non modules. This series converts non-modular code that is using the module_init() call to hook itself into the system to instead use one of our alternate priority initcalls. Unlike the previous series that used device_initcall and hence was a runtime no-op, these commits change to one of the alternate initcalls, because (a) we have them and (b) it seems like the right thing to do. For example, it would seem logical to use arch_initcall for arch specific setup code and fs_initcall for filesystem setup code. This does mean however, that changes in the init ordering will be taking place, and so there is a small risk that some kind of implicit init ordering issue may lie uncovered. But I think it is still better to give these ones sensible priorities than to just assign them all to device_initcall in order to exactly preserve the old ordering. Thad said, we have already made similar changes in core kernel code in commit c96d6660dc65 ("kernel: audit/fix non-modular users of module_init in core code") without any regressions reported, so this type of change isn't without precedent. It has also got the same local testing and linux-next coverage as all the other pull requests that I'm sending for this merge window have got. Once again, there is an unused module_exit function removal that shows up as an outlier upon casual inspection of the diffstat" * tag 'module_init-alternate_initcall-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: x86: perf_event_intel_pt.c: use arch_initcall to hook in enabling x86: perf_event_intel_bts.c: use arch_initcall to hook in enabling mm/page_owner.c: use late_initcall to hook in enabling lib/list_sort: use late_initcall to hook in self tests arm: use subsys_initcall in non-modular pl320 IPC code powerpc: don't use module_init for non-modular core hugetlb code powerpc: use subsys_initcall for Freescale Local Bus x86: don't use module_init for non-modular core bootflag code netfilter: don't use module_init/exit in core IPV4 code fs/notify: don't use module_init for non-modular inotify_user code mm: replace module_init usages with subsys_initcall in nommu.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 16:17:17 +0000