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2013-10-30powerpc: Enable virtio on ppc64 and pseries configsAnton Blanchard2-0/+12
Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Enable multipath modules on ppc64 and pseriesAnton Blanchard2-0/+12
Enable a few modules required to boot on a POWER multipath box. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: sync ppc64, ppc64e and pseries configsAnton Blanchard3-30/+8
Run savedefconfig over the ppc64, ppc64e and pseries config Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
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 <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc/pseries: Fix dedicated processor partition detectionAnton Blanchard1-6/+6
commit f13c13a00512 (powerpc: Stop using non-architected shared_proc field in lppaca) fixed a potential issue with shared/dedicated partition detection. The old method of detection relied on an unarchitected field (shared_proc), and this patch switched to using something architected (a non zero yield_count). Unfortunately the assertion in the Linux header that yield_count is only non zero on shared processor partitions is not true. It turns out dedicated processor partitions can increment yield_count and as such we falsely detect dedicated partitions as shared. Fix the comment, and switch back to using the old method. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix Unaligned LE Floating Point Loads and StoresTom Musta1-12/+40
This patch addresses unaligned single precision floating point loads and stores in the single-step code. The old implementation improperly treated an 8 byte structure as an array of two 4 byte words, which is a classic little endian bug. Signed-off-by: Tom Musta <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix Unaligned Loads and StoresTom Musta1-0/+45
This patch modifies the unaligned access routines of the sstep.c module so that it properly reverses the bytes of storage operands in the little endian kernel kernel. This is implemented by breaking an unaligned little endian access into a combination of single byte accesses plus an overal byte reversal operation. Signed-off-by: Tom Musta <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Enable Little Endian Alignment Handler for Float Pair InstructionsTom Musta1-6/+0
This patch enables alignment handling for the load/store floating point pair instructions (lfdp, lfdpx, stfdp, stfdpx). The handler routine is properly coded and only needs to be enabled. Signed-off-by: Tom Musta <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix Handler of Unaligned Load/Store StringsTom Musta1-5/+16
The alignment handler is incorrect for unaligned string instructions in little endian mode. These instructions access data as arrays of bytes and thus are endian neutral. However, the routine also handles the load/store multiple instructions, which are NOT endian neutral. This patch toggles the byte swapping flag for the string instructions in little endian builds. This effectively disables the byte swapping logic. Signed-off-by: Tom Musta <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc/pseries: Fix endian issues in pseries iommu codeAnton Blanchard1-29/+30
Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix little endian issue in OF PCI scanAnton Blanchard1-2/+2
This issue was causing the QEMU emulated USB device to fail dring PCI probe. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc/vio: use strcpy in modalias_showPrarit Bhargava1-2/+2
Commit e82b89a6f19bae73fb064d1b3dd91fcefbb478f4 used strcat instead of strcpy which can result in an overflow of newlines on the buffer. Signed-off-by: Prarit Bhargava Cc: [email protected] Cc: [email protected] Cc: [email protected] Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix 64K page size support for PPC44xAlistair Popple1-1/+1
PPC44x supports page sizes other than 4K however when 64K page sizes are selected compilation fails. This is due to a change in the definition of pgtable_t introduced by the following patch: commit 5c1f6ee9a31cbdac90bbb8ae1ba4475031ac74b4 Author: Aneesh Kumar K.V <[email protected]> powerpc: Reduce PTE table memory wastage The above patch only implements the new layout for PPC64 so it doesn't compile for PPC32 with a 64K page size. Ideally we should implement the same layout for PPC32 however for the meantime this patch reverts the definition of pgtable_t for PPC32. Signed-off-by: Alistair Popple <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: FA_DUMP depends on KEXECMichael Ellerman1-1/+1
If you try and build the FA_DUMP code with CONFIG_KEXEC=n, you see errors such as the following: arch/powerpc/kernel/fadump.c 408:2: error: 'crashing_cpu' undeclared (first use in this function) 410:2: error: implicit declaration of function 'crash_save_vmcoreinfo' 513:22: error: storage size of 'prstatus' isn't known 520:2: error: implicit declaration of function 'elf_core_copy_kernel_regs' 521:36: error: 'KEXEC_CORE_NOTE_NAME' undeclared (first use in this function) 624:49: error: 'note_buf_t' undeclared (first use in this function) 872:2: error: implicit declaration of function 'paddr_vmcoreinfo_note' 874:18: error: 'vmcoreinfo_max_size' undeclared (first use in this function) This is because although FA_DUMP doesn't use kexec as the actual reboot mechanism, it does use parts of the kexec code to assemble/disassemble the crash image. Signed-off-by: Michael Ellerman <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix a typo in comments of va to pa conversionVaishnavi Bhat1-1/+1
This patch fixes typo in comments virtual to physical address conversion. Signed-off-by: Vaishnavi Bhat <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Move local setup.h declarations to arch includesRobert Jennings9-23/+8
Move the few declarations from arch/powerpc/kernel/setup.h into arch/powerpc/include/asm/setup.h. This resolves a sparse warning for arch/powerpc/mm/numa.c which defines do_init_bootmem() but can't include the setup.h header in the prior path. Resolves: arch/powerpc/mm/numa.c:998:13: warning: symbol 'do_init_bootmem' was not declared. Should it be static? Signed-off-by: Robert C Jennings <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc: Fix warnings for arch/powerpc/mm/numa.cRobert Jennings1-4/+4
Simple fixes for sparse warnings in this file. Resolves: arch/powerpc/mm/numa.c:198:24: warning: Using plain integer as NULL pointer arch/powerpc/mm/numa.c:1157:5: warning: symbol 'hot_add_node_scn_to_nid' was not declared. Should it be static? arch/powerpc/mm/numa.c:1238:28: warning: Using plain integer as NULL pointer arch/powerpc/mm/numa.c:1538:6: warning: symbol 'topology_schedule_update' was not declared. Should it be static? Signed-off-by: Robert C Jennings <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30powerpc/boot: Don't change link address for OF-based platformsPaul Mackerras1-0/+4
Commit c55aef0e5bc6 ("powerpc/boot: Change the load address for the wrapper to fit the kernel") adjusts the wrapper address unnecessarily for platforms that use arch/powerpc/boot/of.c, since the code there allocates space for the kernel wherever it can find it and doesn't necessarily load the kernel at address 0. Changing the link address is actually harmful since it can cause the zImage to overlap with Open Firmware and thus fail to boot. To fix this, we set make_space to n for all of the platforms that use of.o. Signed-off-by: Paul Mackerras <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
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 <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Benjamin Herrenschmidt <[email protected]>
2013-10-30Merge remote-tracking branch 'scott/next' into nextBenjamin Herrenschmidt51-1081/+964
Highlights include corenet board file consolidation, the ability to run userspaces with lwsync on e500v1/v2, some cleanup patches that other KVM patches will build on, support for stripped-down e6500 emulation targets, and some fixes of minor longstanding issues.
2013-10-30Merge branch 'for-kvm' into nextBenjamin Herrenschmidt2-12/+17
Add Paul's fix for 32-bit register corruption in the new FP code
2013-10-28powerpc: Fix PPC_EMULATED_STATS build break with sync patchScott Wood2-0/+2
Commit 9863c28a2af90a56c088f5f6288d7f6d2c923c14 ("powerpc: Emulate sync instruction variants") introduced a build breakage with CONFIG_PPC_EMULATED_STATS enabled. Signed-off-by: Scott Wood <[email protected]> Cc: Kumar Gala <[email protected]> Cc: James Yang <[email protected]> ---
2013-10-28powerpc/6xx: CONFIG_MCU_MPC8349EMITX cannot be a moduleChristian Kujau1-1/+1
During "make ppc6xx_defconfig" the following happens: HOSTCC scripts/basic/fixdep GEN /usr/local/src/tmp/lnx/Makefile HOSTCC scripts/kconfig/conf.o HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf arch/powerpc/configs/ppc6xx_defconfig:74:warning: symbol value 'm' invalid for MCU_MPC8349EMITX Setting CONFIG_MCU_MPC8349EMITX=y in ppc6xx_defconfig makes the warning go away. This too has been reported by Geert Uytterhoeven a long time ago: https://lkml.org/lkml/2011/11/13/11 - I only came across this because I needed a "clean" defconfig for this Powerbook G5. Signed-off-by: Christian Kujau <[email protected]> [[email protected]: cleaned up commit message slightly] Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/mv643xx_eth: fix return check in mv64x60_eth_register_shared_pdev()Wei Yongjun1-1/+1
In case of error, the function platform_device_register_simple() returns RR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/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 <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28arch/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 <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/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 <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/8xx: Fixing memory init issue with CONFIG_PIN_TLBLEROY Christophe1-0/+5
Activating CONFIG_PIN_TLB allows access to the 24 first Mbytes of memory at bootup instead of 8. It is needed for "big" kernels for instance when activating CONFIG_LOCKDEP_SUPPORT. This needs to be taken into account in init_32 too, otherwise memory allocation soon fails after startup. Signed-off-by: Christophe Leroy <[email protected]> Acked-by: Joakim Tjernlund <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/8xx: Fixing issue with CONFIG_PIN_TLBLEROY Christophe1-0/+3
Activating CONFIG_PIN_TLB is supposed to pin the IMMR and the first three 8Mbytes pages. But the setting of MD_CTR to a pinnable entry was missing before the pinning of the third 8Mb page. As the index is decremented module 28 (MD_RSV4D is set) after every DTLB update, the third 8Mbytes page was not pinned. Signed-off-by: Christophe Leroy <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/85xx: use one kernel option for all the CoreNet_Generic boardsKevin Hao4-111/+13
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 <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/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 <[email protected]>
2013-10-28powerpc/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 <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/dts/c293pcie: Add range field for IFC NANDPrabhakar Kushwaha1-0/+1
C290PCIe has NAND flash present on IFC Chip Select(CS) 1. So Add "ranges" field for NAND flash on CS1. Signed-off-by: Prabhakar Kushwaha <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/b4860emu: Add device tree file for b4860emuYork Sun1-0/+218
B4860EMU is a emualtor target with minimum peripherals. It is based on B4860QDS and trimmed down most peripherals due to either not modeled or lack of board level connections. The main purpose of this minimum dts is to speed up booting on emulator. Signed-off-by: York Sun <[email protected]> [[email protected]: whitespace fix] Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/t4240emu: Add device tree file for t4240emuYork Sun1-0/+268
T4240EMU is an emulator target with minimum peripherals. It is based on T4240QDS and trimmed down most peripherals due to either not modeled or lack of board level connections. The main purpose of this minimum dts is to speed up booting on emulator. Signed-off-by: York Sun <[email protected]> [[email protected]: whitespace fixes] Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/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 <[email protected]> Cc: Kevin Hao <[email protected]> Cc: Shaveta Leekha <[email protected]>
2013-10-28powerpc/8xx: Revert commit e0908085fc2391c85b85fb814ae1df377c8e0dcbLEROY Christophe1-16/+3
The commit e0908085fc2391c85b85fb814ae1df377c8e0dcb ("powerpc/8xx: Fix regression introduced by cache coherency rewrite") is not needed anymore. The issue was because dcbst wrongly sets the store bit when causing a DTLB error, but this is now fixed by commit 0a2ab51ffb8dfdf51402dcfb446629648c96bc78 ("powerpc/8xx: Fixup DAR from buggy dcbX instructions.") which handles the buggy dcbx instructions on data page faults on the 8xx. Signed-off-by: Christophe Leroy <[email protected]> [[email protected]: fix commit message] Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc: Add I2C bus multiplexer node for B4 and T4240QDSHongtao Jia2-47/+73
In both B4 and T4240QDS platform PCA9547 I2C bus multiplexer is used. The sub-nodes are also reorganized according to right I2C topology. Signed-off-by: Jia Hongtao <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/fsl/defconfig: enable CONFIG_AT803X_PHYShengzhou Liu3-0/+3
Enable CONFIG_AT803X_PHY to support AR8030/8033/8035 PHY. Signed-off-by: Shengzhou Liu <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/dts: Correct sdhci quirk for bsc9131Haijun.Zhang1-1/+1
We use property "sdhci,auto-cmd12" instead of "fsl,sdhci-auto-cmd12" to distinguish if the sdhc host has quirk SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12. Signed-off-by: Haijun Zhang <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/eSDCH: Specify voltage for T4240QDSHaijun.Zhang1-0/+4
Freescale T4240QDS reference board has extra voltage shifters added to allow 3.3V operation, so add 3.3v voltage support for T4240QDS. 1.8v and 3.3v is recommand for eMMC and SDHC card. Signed-off-by: Haijun Zhang <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/mpc8xx: Clearer Oops message for Software Emulation ExceptionLEROY Christophe1-1/+2
This patch modifies the Oops message in case of Software Emulation Exception. The existing message is quite confusing because it refers to FPU Emulation while most often the issue is due to either a non supported instruction (not necessarily FPU related) or a stale instruction due to HW issues. The new message tries to be more generic in order to make the user understand that the Oops is due to something wrong with an instruction, not necessarily due to an FPU instruction. Signed-off-by: Christophe Leroy <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc: Set the NOTE type for SPE regsetSuzuki Poulose1-1/+1
The regset defintion for SPE doesn't have the core_note_type set, which prevents it from being dumped. Add the note type NT_PPC_SPE for SPE regset. Signed-off-by: Suzuki K Poulose <[email protected]> Cc: Roland McGrath <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/e500v2: Include Power ISA propertiesLijun Pan1-0/+3
bsc9131 device tree does not have these properties. Signed-off-by: Lijun Pan <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/e6500: Include Power ISA propertiesLijun Pan2-0/+4
b4420 and b4860 device trees do not have these properties. Signed-off-by: Lijun Pan <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/pci: Change the DECLARE_PCI_FIXUP_{HEADER => EARLY} macro of pci quirkChunhe Lan1-2/+3
Freescale platform has class code = 0x0b2000, when it boots. This makes kernel PCI bus code to setup these devices resulting into the following notice information when trying to enable them: pci 0000:00:00.0: ignoring class 0x0b2000 (doesn't match header type 01) The above information is outputted by judging value of dev->class before pci_setup_device() function, and the DECLARE_PCI_FIXUP_HEADER quirk runs after pci_setup_device() function. But the DECLARE_PCI_FIXUP_EARLY quirk runs before judging value of dev->class and pci_setup_device() function. So we use the DECLARE_PCI_FIXUP_EARLY macro to fix this issue. Signed-off-by: Chunhe Lan <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28powerpc/dts: fix sRIO error interrupt for b4860Minghuan Lian1-1/+1
For B4 platform, MPIC EISR register is in reversed bitmap order, instead of "Error interrupt source 0-31. Bit 0 represents SRC0." the correct ordering is "Error interrupt source 0-31. Bit 0 represents SRC31." This patch is to fix sRIO EISR bit value of error interrupt in dts node. Signed-off-by: Minghuan Lian <[email protected]> Signed-off-by: Scott Wood <[email protected]>
2013-10-28Merge branch 'acpi-hotplug'Rafael J. Wysocki2-39/+16
* acpi-hotplug: ACPI / memhotplug: Use defined marco METHOD_NAME__STA ACPI / hotplug: Use kobject_init_and_add() instead of _init() and _add() ACPI / hotplug: Don't set kobject parent pointer explicitly ACPI / hotplug: Set kobject name via kobject_add(), not kobject_set_name() hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock() hotplug / x86: Disable ARCH_CPU_PROBE_RELEASE on x86 hotplug / x86: Add hotplug lock to missing places hotplug / x86: Fix online state in cpu0 debug interface
2013-10-24of/irq: Use irq_of_parse_and_map()Thierry Reding4-15/+11
Replace some instances of of_irq_map_one()/irq_create_of_mapping() and of_irq_to_resource() by the simpler equivalent irq_of_parse_and_map(). Signed-off-by: Thierry Reding <[email protected]> Acked-by: Rob Herring <[email protected]> [grant.likely: resolved conflicts with core code renames] Signed-off-by: Grant Likely <[email protected]>
2013-10-24of/irq: Refactor interrupt-map parsingGrant Likely1-2/+4
All the users of of_irq_parse_raw pass in a raw interrupt specifier from the device tree and expect it to be returned (possibly modified) in an of_phandle_args structure. However, the primary function of of_irq_parse_raw() is to check for translations due to the presence of one or more interrupt-map properties. The actual placing of the data into an of_phandle_args structure is trivial. If it is refactored to accept an of_phandle_args structure directly, then it becomes possible to consume of_phandle_args from other sources. This is important for an upcoming patch that allows a device to be connected to more than one interrupt parent. It also simplifies the code a bit. The biggest complication with this patch is that the old version works on the interrupt specifiers in __be32 form, but the of_phandle_args structure is intended to carry it in the cpu-native version. A bit of churn was required to make this work. In the end it results in tighter code, so the churn is worth it. Signed-off-by: Grant Likely <[email protected]> Acked-by: Tony Lindgren <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]>
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