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2013-10-31Kind of revert "powerpc: 52xx: provide a default in mpc52xx_irqhost_map()"Wolfram Sang1-3/+2
This more or less reverts commit 6391f697d4892a6f233501beea553e13f7745a23. Instead of adding an unneeded 'default', mark the variable to prevent the false positive 'uninitialized var'. The other change (fixing the printout) needs revert, too. We want to know WHICH critical irq failed, not which level it had. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Anatolij Gustschin <agust@denx.de> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Anatolij Gustschin <agust@denx.de>
2013-10-31powerpc/mpc512x: silence build warning upon disabled DIUGerhard Sittig1-0/+3
a disabled Kconfig option results in a reference to a not implemented routine when the IS_ENABLED() macro is used for both conditional implementation of the routine as well as a C language source code test at the call site -- the "if (0) func();" construct only gets eliminated later by the optimizer, while the compiler already has emitted its warning about "func()" being undeclared provide an empty implementation for the mpc512x_setup_diu() and mpc512x_init_diu() routines in case of the disabled option, to avoid the compiler warning which is considered fatal and breaks compilation the bug appeared with commit 2abbbb63c90ab55ca3f054772c2e5ba7df810c48 "powerpc/mpc512x: move common code to shared.c file", how to reproduce: make mpc512x_defconfig echo CONFIG_FB_FSL_DIU=n >> .config && make olddefconfig make CC arch/powerpc/platforms/512x/mpc512x_shared.o .../arch/powerpc/platforms/512x/mpc512x_shared.c: In function 'mpc512x_init_early': .../arch/powerpc/platforms/512x/mpc512x_shared.c:456:3: error: implicit declaration of function 'mpc512x_init_diu' [-Werror=implicit-function-declaration] .../arch/powerpc/platforms/512x/mpc512x_shared.c: In function 'mpc512x_setup_arch': .../arch/powerpc/platforms/512x/mpc512x_shared.c:469:3: error: implicit declaration of function 'mpc512x_setup_diu' [-Werror=implicit-function-declaration] cc1: all warnings being treated as errors make[4]: *** [arch/powerpc/platforms/512x/mpc512x_shared.o] Error 1 Signed-off-by: Gerhard Sittig <gsi@denx.de> CC: <stable@vger.kernel.org> # v3.11 Signed-off-by: Anatolij Gustschin <agust@denx.de>
2013-10-30powerpc/powernv: Code update interfaceVasant Hegde4-1/+676
Code update interface for powernv platform. This provides sysfs interface to pass new image, validate, update and commit images. This patch includes: - Below OPAL APIs for code update - opal_validate_flash() - opal_manage_flash() - opal_update_flash() - Create below sysfs files under /sys/firmware/opal - image : Interface to pass new FW image - validate_flash : Validate candidate image - manage_flash : Commit/Reject operations - update_flash : Flash new candidate image Updating Image: "update_flash" is an interface to indicate flash new FW. It just passes image SG list to FW. Actual flashing is done during system reboot time. Note: - SG entry format: I have kept version number to keep this list similar to what PAPR is defined. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-30powerpc/powernv: Create opal sysfs directoryVasant Hegde1-0/+19
Create /sys/firmware/opal directory. We wil use this interface to fetch opal error logs, firmware update, etc. Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-30powerpc: Use 32 bit loads and stores when operating on condition register valuesAnton Blanchard1-2/+2
The condition register (CR) is a 32 bit quantity so we should use 32 bit loads and stores. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-30powerpc: Use -mcpu=power7 on ppc64 little endian buildsAnton Blanchard1-4/+5
Using -mcpu=power7 allows gcc to use a number of new instructions including 64 bit byte reversed loads. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-30powerpc/pseries: Fix endian issues in pseries iommu codeAnton Blanchard1-29/+30
Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-30powerpc: Add includes to fix powernv/rng.c buildStephen Rothwell1-0/+3
Caused by commit a4da0d50b2a0 ("powerpc: Implement arch_get_random_long/int() for powernv") from the powerpc tree interacting with commit b5b4bb3f6a11 ("of: only include prom.h on sparc") from the dt-rh tree. I added this merge fix patch (which will need to be sent to Linus when these two trees get merged, or could be applied now to the powerpc tree): [ Also add linux/smp.h to get cpu_to_chip_id -- BenH ] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-29powerpc/p1010rdb: add P1010RDB-PB platform supportZhao Qiang1-0/+2
The P1010RDB-PB is similar to P1010RDB(P1010RDB-PA). So, P1010RDB-PB use the same platform file as P1010RDB. Then Add support for P1010RDB-PB platform. Signed-off-by: Zhao Qiang <B45475@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-10-29arch/powerpc/platforms/83xx: Remove obsolete cleanup for clientdataWolfram Sang1-1/+0
A few new i2c-drivers came into the kernel which clear the clientdata-pointer on exit or error. This is obsolete meanwhile, the core will do it. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-10-29powerpc/6xx: add missing iounmap() on error in hlwd_pic_init()Wei Yongjun1-0/+1
Add the missing iounmap() before return from hlwd_pic_init() in the error handling case. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-10-29powerpc/85xx: use one kernel option for all the CoreNet_Generic boardsKevin Hao1-101/+10
Currently all these boards use the same machine struct and also select the same kernel options, so it seems a bit of redundant to keep one separate kernel option for each board. Also update the defconfigs according to this change. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-10-29powerpc/85xx: rename the corenet_ds.c to corenet_generic.cKevin Hao2-7/+7
This file is also used by some RDB and QDS boards. So the name seems not so accurate. Rename it to corenet_generic.c. Also update the function names in this file according to the change. Signed-off-by: Kevin Hao <haokexin@gmail.com>
2013-10-29powerpc/85xx: introduce corenet_generic machineKevin Hao11-656/+97
In the current kernel, the board files for p2041rdb, p3041ds, p4080ds, p5020ds, p5040ds, t4240qds and b4qds are almost the same except the machine name. So this introduces a cornet_generic machine to support all these boards to avoid the code duplication. With these changes the file corenet_ds.h becomes useless. Just delete it. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
2013-10-29powerpc/b4qds: enable coreintScott Wood1-5/+0
Commit 9837b43c5f3514e5d28f65f1513f4dc6759d2810 ("powerpc/85xx: enable coreint for all the 64bit boards") removed the ifdef that avoided coreint on 64-bit, but it missed b4_qds.c. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Kevin Hao <haokexin@gmail.com> Cc: Shaveta Leekha <shaveta@freescale.com>
2013-10-11Merge branch 'for-kvm' into nextBenjamin Herrenschmidt3-19/+75
Topic branch for commits that the KVM tree might want to pull in separately. Hand merged a few files due to conflicts with the LE stuff Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: add real mode support for dma operations on powernvAlexey Kardashevskiy3-19/+75
The existing TCE machine calls (tce_build and tce_free) only support virtual mode as they call __raw_writeq for TCE invalidation what fails in real mode. This introduces tce_build_rm and tce_free_rm real mode versions which do mostly the same but use "Store Doubleword Caching Inhibited Indexed" instruction for TCE invalidation. This new feature is going to be utilized by real mode support of VFIO. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/eeh: Output PHB3 diag-dataGavin Shan1-0/+70
The patch adds function ioda_eeh_phb3_phb_diag() to dump PHB3 PHB diag-data. That's called while detecting informative errors or frozen PE on the specific PHB. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Double size of log blobGavin Shan1-1/+1
Each PHB instance (struct pnv_phb) has its corresponding log blob, which is used to hold the retrieved error log from firmware. The current size of that (4096) isn't enough for PHB3 case and the patch makes that double to 8192. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/eeh: Output error numberGavin Shan1-2/+2
The patch prints the error number while failing to retrieve error log from firmware. It's helpful for debugging. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Support inbound error injectionGavin Shan1-9/+50
For now, we only support outbound error injection. Actually, the hardware supports injecting inbound errors as well. The patch enables to inject inbound errors. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Enable EEH for PHB3Gavin Shan2-19/+12
The EEH isn't enabled for PHB3 and the patch intends to enable it. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Add scom support under OPALv3Benjamin Herrenschmidt3-0/+107
OPAL v3 provides interfaces to access the chips XSCOM, expose this via the existing scom infrastructure. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/scom: Change scom_read() and scom_write() to return errorsBenjamin Herrenschmidt3-15/+28
scom_read() now returns the read value via a pointer argument and both functions return an int error code Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/pseries: Implement arch_get_random_long() based on H_RANDOMMichael Ellerman2-1/+45
Add support for the arch_get_random_long() hook based on the H_RANDOM hypervisor call. We trust the hypervisor to provide us with random data, ie. we don't whiten it in anyway. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: Implement arch_get_random_long/int() for powernvMichael Ellerman3-1/+124
Add the plumbing to implement arch_get_random_long/int(). It didn't seem worth adding an extra ppc_md hook for int, so we reuse the one for long. Add an implementation for powernv based on the hwrng found in power7+ systems. We whiten the output of the hwrng, and the result passes all the dieharder tests. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/8xx/tqm8xx: Fix incorrect placement of __initdata tagBartlomiej Zolnierkiewicz1-2/+2
__initdata tag should be placed between the variable name and equal sign for the variable to be placed in the intended .init.data section. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Fix some PCI sparse errors and one LE bugAnton Blanchard4-8/+8
pnv_pci_setup_bml_iommu was missing a byteswap of a device tree property. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: More little endian issues in OPAL RTC driverAnton Blanchard1-9/+10
Sparse caught an issue where opal_set_rtc_time was incorrectly byteswapping. Also fix a number of sparse warnings. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Don't register exception handlers in little endian modeBenjamin Herrenschmidt1-0/+2
The powernv exception handlers are not ready to take exceptions in little endian mode, so disable them. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Fix OPAL entry and exit in little endian modeBenjamin Herrenschmidt1-1/+8
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Fix endian issues in OPAL console and udbg backendBenjamin Herrenschmidt1-12/+16
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Fix endian issues in powernv PCI codeBenjamin Herrenschmidt2-28/+30
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Make OPAL NVRAM device tree accesses endian safeBenjamin Herrenschmidt1-2/+2
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc/powernv: Fix endian issues in OPAL RTC driverBenjamin Herrenschmidt1-0/+7
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: Little endian sparse clean up for ↵Alistair Popple1-2/+2
arch/powerpc/platforms/powernv/pci-ioda.c Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: Little endian fix for arch/powerpc/platforms/powernv/pci-p5ioc2.cAlistair Popple1-2/+2
Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: Little endian fix for arch/powerpc/platforms/powernv/pci.cAlistair Popple1-4/+5
Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-10-11powerpc: Little endian fixes for platforms/powernv/opal.cAlistair Popple1-1/+1
Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-09-25powerpc/pseries: Do not start secondaries in Open FirmwareBenjamin Herrenschmidt1-10/+16
Starting secondary CPUs early on from Open Firmware and placing them in a holding spin loop slows down the boot process significantly under some hypervisors such as KVM. This is also unnecessary when RTAS supports querying the CPU state So let's not do it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-09-11powerpc: Default arch idle could cede processor on pseriesVaidyanathan Srinivasan1-10/+21
When adding cpuidle support to pSeries, we introduced two regressions: - The new cpuidle backend driver only works under hypervisors supporting the "SLPLAR" option, which isn't the case of the old POWER4 hypervisor and the HV "light" used on js2x blades - The cpuidle driver registers fairly late, meaning that for a significant portion of the boot process, we end up having all threads spinning. This slows down the boot process and increases the overall resource usage if the hypervisor has shared processors. This fixes both by implementing a "default" idle that will cede to the hypervisor when possible, in a very simple way without all the bells and whisles of cpuidle. Reported-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Acked-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@vger.kernel.org>
2013-09-09Merge tag 'xfs-for-linus-v3.12-rc1' of git://oss.sgi.com/xfs/xfsLinus Torvalds1-2/+6
Pull xfs updates from Ben Myers: "For 3.12-rc1 there are a number of bugfixes in addition to work to ease usage of shared code between libxfs and the kernel, the rest of the work to enable project and group quotas to be used simultaneously, performance optimisations in the log and the CIL, directory entry file type support, fixes for log space reservations, some spelling/grammar cleanups, and the addition of user namespace support. - introduce readahead to log recovery - add directory entry file type support - fix a number of spelling errors in comments - introduce new Q_XGETQSTATV quotactl for project quotas - add USER_NS support - log space reservation rework - CIL optimisations - kernel/userspace libxfs rework" * tag 'xfs-for-linus-v3.12-rc1' of git://oss.sgi.com/xfs/xfs: (112 commits) xfs: XFS_MOUNT_QUOTA_ALL needed by userspace xfs: dtype changed xfs_dir2_sfe_put_ino to xfs_dir3_sfe_put_ino Fix wrong flag ASSERT in xfs_attr_shortform_getvalue xfs: finish removing IOP_* macros. xfs: inode log reservations are too small xfs: check correct status variable for xfs_inobt_get_rec() call xfs: inode buffers may not be valid during recovery readahead xfs: check LSN ordering for v5 superblocks during recovery xfs: btree block LSN escaping to disk uninitialised XFS: Assertion failed: first <= last && last < BBTOB(bp->b_length), file: fs/xfs/xfs_trans_buf.c, line: 568 xfs: fix bad dquot buffer size in log recovery readahead xfs: don't account buffer cancellation during log recovery readahead xfs: check for underflow in xfs_iformat_fork() xfs: xfs_dir3_sfe_put_ino can be static xfs: introduce object readahead to log recovery xfs: Simplify xfs_ail_min() with list_first_entry_or_null() xfs: Register hotcpu notifier after initialization xfs: add xfs sb v4 support for dirent filetype field xfs: Add write support for dirent filetype field xfs: Add read-only support for dirent filetype field ...
2013-09-06Merge branch 'next' of ↵Linus Torvalds40-521/+1273
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc updates from Ben Herrenschmidt: "Here's the powerpc batch for this merge window. Some of the highlights are: - A bunch of endian fixes ! We don't have full LE support yet in that release but this contains a lot of fixes all over arch/powerpc to use the proper accessors, call the firmware with the right endian mode, etc... - A few updates to our "powernv" platform (non-virtualized, the one to run KVM on), among other, support for bridging the P8 LPC bus for UARTs, support and some EEH fixes. - Some mpc51xx clock API cleanups in preparation for a clock API overhaul - A pile of cleanups of our old math emulation code, including better support for using it to emulate optional FP instructions on embedded chips that otherwise have a HW FPU. - Some infrastructure in selftest, for powerpc now, but could be generalized, initially used by some tests for our perf instruction counting code. - A pile of fixes for hotplug on pseries (that was seriously bitrotting) - The usual slew of freescale embedded updates, new boards, 64-bit hiberation support, e6500 core PMU support, etc..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc: Correct FSCR bit definitions powerpc/xmon: Fix printing of set of CPUs in xmon powerpc/pseries: Move lparcfg.c to platforms/pseries powerpc/powernv: Return secondary CPUs to firmware on kexec powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32 powerpc: Cleanup handling of the DSCR bit in the FSCR register powerpc/pseries: Child nodes are not detached by dlpar_detach_node powerpc/pseries: Add mising of_node_put in delete_dt_node powerpc/pseries: Make dlpar_configure_connector parent node aware powerpc/pseries: Do all node initialization in dlpar_parse_cc_node powerpc/pseries: Fix parsing of initial node path in update_dt_node powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header powerpc/pseries: Fix over writing of rtas return code in update_dt_node powerpc/pseries: Fix creation of loop in device node property list powerpc: Skip emulating & leave interrupts off for kernel program checks powerpc: Add more exception trampolines for hypervisor exceptions powerpc: Fix location and rename exception trampolines powerpc: Add more trap names to xmon powerpc/pseries: Add a warning in the case of cross-cpu VPA registration powerpc: Update the 00-Index in Documentation/powerpc ...
2013-09-05Merge branch 'i2c/for-next' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights: - OF and ACPI helpers are now included in the core, and not in external files anymore. This removes dependency problems for modules and is cleaner, in general. - mv64xxx-driver gains fifo usage to support mv78230 - imx-driver overhaul to support VF610 - various cleanups, most notably related to devm_* and CONFIG_PM usage - driver bugfixes and smaller feature additions" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits) i2c: rcar: add rcar-H2 support i2c: sirf: retry 3 times as sometimes we get random noack and timeout i2c: sirf: support reverse direction of address i2c: sirf: fix the typo for setting bitrate to less than 100k i2c: sirf: we need to wait I2C_RESET status in resume i2c: sirf: reset i2c controller early after we get a noack i2c: designware: get SDA hold time, HCNT and LCNT configuration from ACPI i2c: designware: make HCNT/LCNT values configurable i2c: mpc: cleanup clock API use i2c: pnx: fix error return code in i2c_pnx_probe() i2c: ismt: add error return code in probe() i2c: mv64xxx: fix typo in binding documentation i2c: imx: use exact SoC revision to document binding i2c: move ACPI helpers into the core i2c: move OF helpers into the core i2c: mv64xxx: Fix timing issue on Armada XP (errata FE-8471889) i2c: mv64xxx: Add I2C Transaction Generator support i2c: powermac: fix return path on error Documentation: i2c: Fix example in instantiating-devices i2c: tiny-usb: do not use stack as URB transfer_buffer ...
2013-09-05Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt1-1/+2
From Anatolij: << There are cleanups for some mpc5121 specific drivers and DTS files in preparation to switch mpc5121 clock support to a clock driver based on common clock framework. Additionally Sebastian fixed the mpc52xx PIC driver so that it builds when using older gcc versions. >>
2013-09-05Merge tag 'PTR_RET-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull PTR_RET() removal patches from Rusty Russell: "PTR_RET() is a weird name, and led to some confusing usage. We ended up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages. This has been sitting in linux-next for a whole cycle" [ There are still some PTR_RET users scattered about, with some of them possibly being new, but most of them existing in Rusty's tree too. We have that #define PTR_RET(p) PTR_ERR_OR_ZERO(p) thing in <linux/err.h>, so they continue to work for now - Linus ] * tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR(). staging/zcache: don't use PTR_RET(). remoteproc: don't use PTR_RET(). pinctrl: don't use PTR_RET(). acpi: Replace weird use of PTR_RET. s390: Replace weird use of PTR_RET. PTR_RET is now PTR_ERR_OR_ZERO(): Replace most. PTR_RET is now PTR_ERR_OR_ZERO
2013-08-28powerpc/pseries: Move lparcfg.c to platforms/pseriesBenjamin Herrenschmidt2-0/+711
This file is entirely pseries specific nowadays, so move it out of arch/powerpc/kernel where it doesn't belong anymore. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-08-27powerpc/powernv: Return secondary CPUs to firmware on kexecBenjamin Herrenschmidt2-0/+12
With OPAL v3 we can return secondary CPUs to firmware on kexec. This allows firmware to do various cleanups making things generally more reliable, and will enable the "new" kernel to call OPAL to perform some reconfiguration tasks early on that can only be done while all the CPUs are in firmware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-08-27Merge branch 'merge' into nextBenjamin Herrenschmidt1-46/+34
Merge stuff that already went into Linus via "merge" which are pre-reqs for subsequent patches
2013-08-27powerpc/pseries: Child nodes are not detached by dlpar_detach_nodeTyrel Datwyler1-0/+7
Calls to dlpar_detach_node do not iterate over child nodes detaching them as well. By iterating and detaching the child nodes we ensure that they have the OF_DETACHED flag set and that their reference counts are decremented such that the node will be freed from memory by of_node_release. Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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