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2013-05-31powerpc/mpic: Fix irq distribution problem when MPIC_SINGLE_DEST_CPUchenhui zhao
For the mpic with a flag MPIC_SINGLE_DEST_CPU, only one bit should be set in interrupt destination registers. The code is applicable to 64-bit platforms as well as 32-bit. Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-14powerpc: Fix irq_set_affinity() return valuesAlexander Gordeev
Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-07powerpc: Add an in memory udbg consoleAlistair Popple
This patch adds a new udbg early debug console which utilises statically defined input and output buffers stored within the kernel BSS. It is primarily designed to assist with bring up of new hardware which may not have a working console but which has a method of reading/writing kernel memory. This version incorporates comments made by Ben H (thanks!). Changes from v1: - Add memory barriers. - Ensure updating of read/write positions is atomic. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-06powerpc/pci: Support per-aperture memory offsetBenjamin Herrenschmidt
The PCI core supports an offset per aperture nowadays but our arch code still has a single offset per host bridge representing the difference betwen CPU memory addresses and PCI MMIO addresses. This is a problem as new machines and hypervisor versions are coming out where the 64-bit windows will have a different offset (basically mapped 1:1) from the 32-bit windows. This fixes it by using separate offsets. In the long run, we probably want to get rid of that intermediary struct pci_controller and have those directly stored into the pci_host_bridge as they are parsed but this will be a more invasive change. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-06irqdomain: Allow quiet failure modeBenjamin Herrenschmidt
Some interrupt controllers refuse to map interrupts marked as "protected" by firwmare. Since we try to map everyting in the device-tree on some platforms, we end up with a lot of nasty WARN's in the boot log for what is a normal situation on those machines. This defines a specific return code (-EPERM) from the host map() callback which cause irqdomain to fail silently. MPIC is updated to return this when hitting a protected source printing only a single line message for diagnostic purposes. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-05Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm updates from Gleb Natapov: "Highlights of the updates are: general: - new emulated device API - legacy device assignment is now optional - irqfd interface is more generic and can be shared between arches x86: - VMCS shadow support and other nested VMX improvements - APIC virtualization and Posted Interrupt hardware support - Optimize mmio spte zapping ppc: - BookE: in-kernel MPIC emulation with irqfd support - Book3S: in-kernel XICS emulation (incomplete) - Book3S: HV: migration fixes - BookE: more debug support preparation - BookE: e6500 support ARM: - reworking of Hyp idmaps s390: - ioeventfd for virtio-ccw And many other bug fixes, cleanups and improvements" * tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits) kvm: Add compat_ioctl for device control API KVM: x86: Account for failing enable_irq_window for NMI window request KVM: PPC: Book3S: Add API for in-kernel XICS emulation kvm/ppc/mpic: fix missing unlock in set_base_addr() kvm/ppc: Hold srcu lock when calling kvm_io_bus_read/write kvm/ppc/mpic: remove users kvm/ppc/mpic: fix mmio region lists when multiple guests used kvm/ppc/mpic: remove default routes from documentation kvm: KVM_CAP_IOMMU only available with device assignment ARM: KVM: iterate over all CPUs for CPU compatibility check KVM: ARM: Fix spelling in error message ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally KVM: ARM: Fix API documentation for ONE_REG encoding ARM: KVM: promote vfp_host pointer to generic host cpu context ARM: KVM: add architecture specific hook for capabilities ARM: KVM: perform HYP initilization for hotplugged CPUs ARM: KVM: switch to a dual-step HYP init code ARM: KVM: rework HYP page table freeing ARM: KVM: enforce maximum size for identity mapped code ARM: KVM: move to a KVM provided HYP idmap ...
2013-05-02Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc update from Benjamin Herrenschmidt: "The main highlights this time around are: - A pile of addition POWER8 bits and nits, such as updated performance counter support (Michael Ellerman), new branch history buffer support (Anshuman Khandual), base support for the new PCI host bridge when not using the hypervisor (Gavin Shan) and other random related bits and fixes from various contributors. - Some rework of our page table format by Aneesh Kumar which fixes a thing or two and paves the way for THP support. THP itself will not make it this time around however. - More Freescale updates, including Altivec support on the new e6500 cores, new PCI controller support, and a pile of new boards support and updates. - The usual batch of trivial cleanups & fixes" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits) powerpc: Fix build error for book3e powerpc: Context switch the new EBB SPRs powerpc: Turn on the EBB H/FSCR bits powerpc: Replace CPU_FTR_BCTAR with CPU_FTR_ARCH_207S powerpc: Setup BHRB instructions facility in HFSCR for POWER8 powerpc: Fix interrupt range check on debug exception powerpc: Update tlbie/tlbiel as per ISA doc powerpc: Print page size info during boot powerpc: print both base and actual page size on hash failure powerpc: Fix hpte_decode to use the correct decoding for page sizes powerpc: Decode the pte-lp-encoding bits correctly. powerpc: Use encode avpn where we need only avpn values powerpc: Reduce PTE table memory wastage powerpc: Move the pte free routines from common header powerpc: Reduce the PTE_INDEX_SIZE powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format powerpc: New hugepage directory format powerpc: Don't truncate pgd_index wrongly powerpc: Don't hard code the size of pte page powerpc: Save DAR and DSISR in pt_regs on MCE ...
2013-04-30powerpc: Fix usage of setup_pci_atmu()Michael Neuling
Linux next is currently failing to compile mpc85xx_defconfig with: arch/powerpc/sysdev/fsl_pci.c:944:2: error: too many arguments to function 'setup_pci_atmu' This is caused by (from Kumar's next branch): commit 34642bbb3d12121333efcf4ea7dfe66685e403a1 Author: Kumar Gala <galak@kernel.crashing.org> powerpc/fsl-pci: Keep PCI SoC controller registers in pci_controller Which changed definition of setup_pci_atmu() but didn't update one of the callers. Below fixes this. Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-04-30Merge remote-tracking branch 'kumar/next' into nextBenjamin Herrenschmidt
From Kumar Gala: << Add support for T4 and B4 SoC families from Freescale, e6500 altivec support, some various board fixes and other minor cleanups. >>
2013-04-29powerpc/fsl-pci: don't unmap the PCI SoC controller registers in setup_pci_atmuKevin Hao
In patch 34642bbb (powerpc/fsl-pci: Keep PCI SoC controller registers in pci_controller) we choose to keep the map of the PCI SoC controller registers. But we missed to delete the unmap in setup_pci_atmu function. This will cause the following call trace once we access the PCI SoC controller registers later. Unable to handle kernel paging request for data at address 0x8000080080040f14 Faulting instruction address: 0xc00000000002ea58 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=24 T4240 QDS Modules linked in: NIP: c00000000002ea58 LR: c00000000002eaf4 CTR: c00000000002eac0 REGS: c00000017e10b4a0 TRAP: 0300 Not tainted (3.9.0-rc1-00052-gfa3529f-dirty) MSR: 0000000080029000 <CE,EE,ME> CR: 28adbe22 XER: 00000000 SOFTE: 0 DEAR: 8000080080040f14, ESR: 0000000000000000 TASK = c00000017e100000[1] 'swapper/0' THREAD: c00000017e108000 CPU: 2 GPR00: 0000000000000000 c00000017e10b720 c0000000009928d8 c00000017e578e00 GPR04: 0000000000000000 000000000000000c 0000000000000001 c00000017e10bb40 GPR08: 0000000000000000 8000080080040000 0000000000000000 0000000000000016 GPR12: 0000000088adbe22 c00000000fffa800 c000000000001ba0 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000008a5b70 GPR24: c0000000008af938 c0000000009a28d8 c0000000009bb5dc c00000017e10bb40 GPR28: c00000017e32a400 c00000017e10bc00 c00000017e32a400 c00000017e578e00 NIP [c00000000002ea58] .fsl_pcie_check_link+0x88/0xf0 LR [c00000000002eaf4] .fsl_indirect_read_config+0x34/0xb0 Call Trace: [c00000017e10b720] [c00000017e10b7a0] 0xc00000017e10b7a0 (unreliable) [c00000017e10ba30] [c00000000002eaf4] .fsl_indirect_read_config+0x34/0xb0 [c00000017e10bad0] [c00000000033aa08] .pci_bus_read_config_byte+0x88/0xd0 [c00000017e10bb90] [c00000000088d708] .pci_apply_final_quirks+0x9c/0x18c [c00000017e10bc40] [c0000000000013dc] .do_one_initcall+0x5c/0x1f0 [c00000017e10bcf0] [c00000000086ebac] .kernel_init_freeable+0x180/0x26c [c00000017e10bdb0] [c000000000001bbc] .kernel_init+0x1c/0x460 [c00000017e10be30] [c000000000000880] .ret_from_kernel_thread+0x64/0xe4 Instruction dump: 38210310 2b800015 4fdde842 7c600026 5463fffe e8010010 7c0803a6 4e800020 60000000 60000000 e92301d0 7c0004ac <80690f14> 0c030000 4c00012c 38210310 ---[ end trace 7a8fe0cbccb7d992 ]--- Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Signed-off-by: Kevin Hao <haokexin@gmail.com> Acked-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-04-26KVM: PPC: Book3S HV: Speed up wakeups of CPUs on HV KVMBenjamin Herrenschmidt
Currently, we wake up a CPU by sending a host IPI with smp_send_reschedule() to thread 0 of that core, which will take all threads out of the guest, and cause them to re-evaluate their interrupt status on the way back in. This adds a mechanism to differentiate real host IPIs from IPIs sent by KVM for guest threads to poke each other, in order to target the guest threads precisely when possible and avoid that global switch of the core to host state. We then use this new facility in the in-kernel XICS code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26powerpc/powernv: Patch MSI EOI handler on P8Gavin Shan
The EOI handler of MSI/MSI-X interrupts for P8 (PHB3) need additional steps to handle the P/Q bits in IVE before EOIing the corresponding interrupt. The patch changes the EOI handler to cover that. we have individual IRQ chip in each PHB instance. During the MSI IRQ setup time, the IRQ chip is copied over from the original one for that IRQ, and the EOI handler is patched with the one that will handle the P/Q bits (As Ben suggested). Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-04-26powerpc/powernv: Add option CONFIG_POWERNV_MSIGavin Shan
As Michael Ellerman suggested, to add CONFIG_POWERNV_MSI for PowerNV platform. That's similar to CONFIG_PSERIES_MSI for pSeries platform. For now, we don't make it dependent on CONFIG_EEH since it's not ready to enable that yet. Apart from that, we also enable CONFIG_PPC_MSI_BITMAP on selecting CONFIG_POWERNV_MSI. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-04-24powerpc/powernv: Fix missing Kconfig dependency for MSIsBenjamin Herrenschmidt
We need PPC_MSI_BITMAP support Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-04-18powerpc: Use PTR_RET instead of IS_ERR/PTR_ERRAdrian-Leonard Radu
Signed-off-by: Adrian-Leonard Radu <ady8radu@gmail.com> Acked-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2013-04-10powerpc/fsl-pci Make PCIe hotplug work with Freescale PCIe controllersRojhalat Ibrahim
Up to now the PCIe link status on Freescale PCIe controllers was only checked once at boot time. So hotplug did not work. With this patch the link status is checked on every config read. PCIe devices not present at boot time are found after doing 'echo 1 >/sys/bus/pci/rescan'. Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-04-10powerpc/fsl-pci: Keep PCI SoC controller registers in pci_controllerKumar Gala
Move to keeping the SoC registers that control and config the PCI controllers on FSL SoCs in the pci_controller struct. This allows us to not need to ioremap() the registers in multiple different places that use them. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-04-03powerpc/fsl-msi: use a different lockclass for the cascade interruptSebastian Andrzej Siewior
lockdep thinks that it might deadlock because it grabs a lock of the same class while calling the generic_irq_handler(). This annotation will inform lockdep that it will not. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-04-03powerpc/fsl_pci: fix 64 bit pci size issueRoy Zang
The size might be 64 bit, so use ilog2() instead of __ilog2() or __ilog2_u64(). ilog2() can select 32bit or 64bit function automatically. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-03-22mv643xx_eth: convert to use the Marvell Orion MDIO driverFlorian Fainelli
This patch converts the Marvell MV643XX ethernet driver to use the Marvell Orion MDIO driver. As a result, PowerPC and ARM platforms registering the Marvell MV643XX ethernet driver are also updated to register a Marvell Orion MDIO driver. This driver voluntarily overlaps with the Marvell Ethernet shared registers because it will use a subset of this shared register (shared_base + 0x4 to shared_base + 0x84). The Ethernet driver is also updated to look up for a PHY device using the Orion MDIO bus driver. For ARM and PowerPC we register a single instance of the "mvmdio" driver in the system like it used to be done with the use of the "shared_smi" platform_data cookie on ARM. Note that it is safe to register the mvmdio driver only for the "ge00" instance of the driver because this "ge00" interface is guaranteed to always be explicitely registered by consumers of arch/arm/plat-orion/common.c and other instances (ge01, ge10 and ge11) were all pointing their shared_smi to ge00. For PowerPC the in-tree Device Tree Source files mention only one MV643XX ethernet MAC instance so the MDIO bus driver is registered only when id == 0. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-15powerpc/qe: Fix Kconfig enablement of QE_USB supportKumar Gala
Commit 193ab2a6070039e7ee2b9b9bebea754a7c52fd1b changed the USB gadget Kconfig symbol from USB_GADGET_FSL_QE to USB_FSL_QE, but did not update the associated symbol name in qe_lib to match. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-03-15powerpc/85xx: Add platform_device declaration to fsl_pci.hJia Hongtao
mpc85xx_pci_err_probe(struct platform_device *op) need platform_device declaration for definition. Otherwise, it will cause compile error if any files including fsl_pci.h without declaration of platform_device. Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-03-05powerpc/85xx: Add support for FSL PCIe controller v3.0Roy ZANG
The T4240 utilizes a new PCIe controller block that has some minor programming model differences from previous versions. The major one that impacts initialization is how we determine the link state. On the 3.x controllers we have a memory mapped SoC register instead of a PCI config register that reports the link state. Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-20Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt
<< Please pull mpc5xxx patches for v3.9. The bestcomm driver is moved to drivers/dma (so it will be usable for ColdFire). mpc5121 now provides common dtsi file and existing mpc5121 device trees use it. There are some minor clock init and sparse fixes and updates for various 5200 device tree files from Grant. Some fixes for bugs in the mpc5121 DIU driver are also included here (Andrew Morton suggested to push them via my mpc5xxx tree). >>
2013-02-19powerpc/85xx: l2sram - Add compatible string for BSC9131 platformHarninder Rai
Signed-off-by: Harninder Rai <harninder.rai@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-15powerpc/mpic: allow coreint to be determined by MPIC versionScott Wood
This will be used by the qemu-e500 platform, as the MPIC version (and thus whether we have coreint) depends on how QEMU is configured. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-15powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr structVarun Sethi
The pci controller structure has a provision to store the device structure pointer of the corresponding platform device. Currently this information is not stored during fsl pci controller initialization. This information is required while dealing with iommu groups for pci devices connected to the fsl pci controller. For the case where the pci devices can't be paritioned, they would fall under the same device group as the pci controller. This patch stores the platform device information in the pci controller structure during initialization. Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-13powerpc/85xx: fix various PCI node compatible stringsTimur Tabi
Fix and/or improve the compatible strings of the PCI device tree nodes for some Freescale SOCs. This fixes some issues and improves consistency among the SOCs. Specifically: 1) The P1022 has a v1 PCIe controller, so the compatible property should just say "fsl,mpc8548-pcie". U-Boot does not look for "fsl,p1022-pcie", so it wasn't fixing up the node. 2) The P4080 has a v2.1 PCIe controller, so add that version-specific string to the device tree. Update the kernel to also look for that string. Currently, the kernel looks for "fsl,p4080-pcie" specifically, but eventually that check should be deleted. 3) The P1010 device tree claims compatibility with v2.2 and v2.3, but that's redundant. No other device tree does this. Remove the v2.2 string. 4) The kernel looks for both "fsl,p1023-pcie" and "fsl,qoriq-pcie-v2.2", even though the P1023 device trees has always included both strings. Remove the search for "fsl,p1023-pcie". Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-12powerpc/fsl: msi: sparse fixesKim Phillips
arch/powerpc/sysdev/fsl_msi.c:31:1: warning: symbol 'msi_head' was not declared. Should it be static? arch/powerpc/sysdev/fsl_msi.c:138:40: warning: incorrect type in argument 1 (different base types) arch/powerpc/sysdev/fsl_msi.c:138:40: expected restricted __be64 const [usertype] *p arch/powerpc/sysdev/fsl_msi.c:138:40: got unsigned long long const [usertype] *[assigned] reg Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-12powerpc/fsl: ifc: sparse fixesKim Phillips
arch/powerpc/sysdev/fsl_ifc.c:66:38: warning: incorrect type in initializer (different base types) arch/powerpc/sysdev/fsl_ifc.c:66:38: expected restricted __be32 [usertype] cspr arch/powerpc/sysdev/fsl_ifc.c:66:38: got unsigned int arch/powerpc/sysdev/fsl_ifc.c:67:21: warning: restricted __be32 degrades to integer arch/powerpc/sysdev/fsl_ifc.c:67:39: warning: restricted __be32 degrades to integer Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-12powerpc/fsl: fsl_soc: sparse fixesKim Phillips
arch/powerpc/sysdev/fsl_soc.c:70:67: warning: incorrect type in argument 2 (different base types) arch/powerpc/sysdev/fsl_soc.c:70:67: expected restricted __be32 const [usertype] *addr arch/powerpc/sysdev/fsl_soc.c:70:67: got unsigned int const [usertype] * Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-12powerpc/fsl: lbc: sparse fixesKim Phillips
arch/powerpc/sysdev/fsl_lbc.c:77:36: warning: incorrect type in initializer (different base types) arch/powerpc/sysdev/fsl_lbc.c:77:36: expected restricted __be32 [usertype] br arch/powerpc/sysdev/fsl_lbc.c:77:36: got unsigned int arch/powerpc/sysdev/fsl_lbc.c:78:36: warning: incorrect type in initializer (different base types) arch/powerpc/sysdev/fsl_lbc.c:78:36: expected restricted __be32 [usertype] or arch/powerpc/sysdev/fsl_lbc.c:78:36: got unsigned int arch/powerpc/sysdev/fsl_lbc.c:80:21: warning: restricted __be32 degrades to integer arch/powerpc/sysdev/fsl_lbc.c:80:38: warning: restricted __be32 degrades to integer arch/powerpc/sysdev/fsl_lbc.c:111:12: warning: incorrect type in assignment (different base types) arch/powerpc/sysdev/fsl_lbc.c:111:12: expected restricted __be32 [usertype] br arch/powerpc/sysdev/fsl_lbc.c:111:12: got unsigned int arch/powerpc/sysdev/fsl_lbc.c:113:17: warning: restricted __be32 degrades to integer arch/powerpc/sysdev/fsl_lbc.c:127:17: warning: restricted __be32 degrades to integer Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2013-02-08powerpc: fix ics_rtas_init and start_secondary section mismatchDaniel Borkmann
It seems, we're fine with just annotating the two functions. Thus, this fixes the following build warnings on ppc64: WARNING: arch/powerpc/sysdev/xics/built-in.o(.text+0x1664): The function .ics_rtas_init() references the function __init .xics_register_ics(). This is often because .ics_rtas_init lacks a __init annotation or the annotation of .xics_register_ics is wrong. WARNING: arch/powerpc/sysdev/built-in.o(.text+0x6044): The function .ics_rtas_init() references the function __init .xics_register_ics(). This is often because .ics_rtas_init lacks a __init annotation or the annotation of .xics_register_ics is wrong. WARNING: arch/powerpc/kernel/built-in.o(.text+0x2db30): The function .start_secondary() references the function __cpuinit .vdso_getcpu_init(). This is often because .start_secondary lacks a __cpuinit annotation or the annotation of .vdso_getcpu_init is wrong. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-02-05powerpc/mpc5xxx: fix sparse warning for non static symbolAnatolij Gustschin
Fix warning: symbol 'mpc5xxx_get_bus_frequency' was not declared. Should it be static? Signed-off-by: Anatolij Gustschin <agust@denx.de>
2013-01-29powerpc/mpic: Make distribute_irqs obey MPIC_SINGLE_DEST_CPUScott Wood
Previously we were setting an illegal configuration on mpc85xx MPICs if CONFIG_IRQ_ALL_CPUS is enabled (which for some reason it is in mpc85xx_smp_defconfig). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-10powerpc: Build kernel with -mcmodel=mediumAnton Blanchard
Finally remove the two level TOC and build with -mcmodel=medium. Unfortunately we can't build modules with -mcmodel=medium due to the tricks the kernel module loader plays with percpu data: # -mcmodel=medium breaks modules because it uses 32bit offsets from # the TOC pointer to create pointers where possible. Pointers into the # percpu data area are created by this method. # # The kernel module loader relocates the percpu data section from the # original location (starting with 0xd...) to somewhere in the base # kernel percpu data space (starting with 0xc...). We need a full # 64bit relocation for this to work, hence -mcmodel=large. On older kernels we fall back to the two level TOC (-mminimal-toc) Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-10powerpc/44x: Support OCM(On Chip Memory) for APM821xx SoC and Bluestone boardVinh Nguyen Huu Tuong
This patch consists of: - Add driver for OCM component - Export OCM Information at /sys/kernel/debug/ppc4xx_ocm/info Signed-off-by: Vinh Nguyen Huu Tuong <vhtnguyen@apm.com> Acked-by: Josh Boyer <jwboyer@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-03POWERPC: drivers: remove __dev* attributes.Greg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03powerpc, dma: move bestcomm driver from arch/powerpc/sysdev to drivers/dmaPhilippe De Muyter
The bestcomm dma hardware, and some of its users like the FEC ethernet component, is used in different FreeScale parts, including non-powerpc parts like the ColdFire MCF547x & MCF548x families. Don't keep the driver hidden in arch/powerpc where it is inaccessible for other arches. .c files are moved to drivers/dma/bestcomm, while .h files are moved to include/linux/fsl/bestcomm. Makefiles, Kconfigs and #include directives are updated for the new file locations. Tested by recompiling for MPC5200 with all bestcomm users enabled. Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: Anatolij Gustschin <agust@denx.de>
2012-12-18Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc update from Benjamin Herrenschmidt: "The main highlight is probably some base POWER8 support. There's more to come such as transactional memory support but that will wait for the next one. Overall it's pretty quiet, or rather I've been pretty poor at picking things up from patchwork and reviewing them this time around and Kumar no better on the FSL side it seems..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits) powerpc+of: Rename and fix OF reconfig notifier error inject module powerpc: mpc5200: Add a3m071 board support powerpc/512x: don't compile any platform DIU code if the DIU is not enabled powerpc/mpc52xx: use module_platform_driver macro powerpc+of: Export of_reconfig_notifier_[register,unregister] powerpc/dma/raidengine: add raidengine device powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct powerpc/mpc85xx: Change spin table to cached memory powerpc/fsl-pci: Add PCI controller ATMU PM support powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS] powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers powerpc: Disable relocation on exceptions when kexecing powerpc: Enable relocation on during exceptions at boot powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function powerpc: Add wrappers to enable/disable relocation on exceptions powerpc: Add set_mode hcall powerpc: Setup relocation on exceptions for bare metal systems powerpc: Move initial mfspr LPCR out of __init_LPCR powerpc: Add relocation on exception vector handlers ...
2012-12-13Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Marcelo Tosatti: "Considerable KVM/PPC work, x86 kvmclock vsyscall support, IA32_TSC_ADJUST MSR emulation, amongst others." Fix up trivial conflict in kernel/sched/core.c due to cross-cpu migration notifier added next to rq migration call-back. * tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (156 commits) KVM: emulator: fix real mode segment checks in address linearization VMX: remove unneeded enable_unrestricted_guest check KVM: VMX: fix DPL during entry to protected mode x86/kexec: crash_vmclear_local_vmcss needs __rcu kvm: Fix irqfd resampler list walk KVM: VMX: provide the vmclear function and a bitmap to support VMCLEAR in kdump x86/kexec: VMCLEAR VMCSs loaded on all cpus if necessary KVM: MMU: optimize for set_spte KVM: PPC: booke: Get/set guest EPCR register using ONE_REG interface KVM: PPC: bookehv: Add EPCR support in mtspr/mfspr emulation KVM: PPC: bookehv: Add guest computation mode for irq delivery KVM: PPC: Make EPCR a valid field for booke64 and bookehv KVM: PPC: booke: Extend MAS2 EPN mask for 64-bit KVM: PPC: e500: Mask MAS2 EPN high 32-bits in 32/64 tlbwe emulation KVM: PPC: Mask ea's high 32-bits in 32/64 instr emulation KVM: PPC: e500: Add emulation helper for getting instruction ea KVM: PPC: bookehv64: Add support for interrupt handling KVM: PPC: bookehv: Remove GET_VCPU macro from exception handler KVM: PPC: booke: Fix get_tb() compile error on 64-bit KVM: PPC: e500: Silence bogus GCC warning in tlb code ...
2012-11-29powerpc: Fix fallout from device_node->name constificationGrant Likely
Commit c22618a1, "drivers/of: Constify device_node->name and ->path_component_name" changes device_node name to a const value, but the PowerPC scom code still assigns it to a non-void field in debugfs_blob_wrapper. The /right/ solution might be to change the debugfs_blob_wrapper->data to also be const, but that is a bit risky. Instead, cast the value to (void*). It is a bit ugly, but it is the safest change until it can be investigated where debugfs_blob_wrapper can be modified. Reported-by: Michael Neuling <mikey@neuling.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-11-25powerpc/fsl-pci: Add PCI controller ATMU PM supportJia Hongtao
Power supply for PCI controller ATMU registers is off when system go to deep-sleep state. So ATMU registers should be re-setup during PCI controllers resume from sleep. Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-11-17drivers/of: Constify device_node->name and ->path_component_nameGrant Likely
Neither of these should ever be changed once set. Make them const and fix up the users that try to modify it in-place. In one case kmalloc+memcpy is replaced with kstrdup() to avoid modifying the string. Build tested with defconfigs on ARM, PowerPC, Sparc, MIPS, x86 among others. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: David S. Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Julian Calaby <julian.calaby@gmail.com>
2012-11-15powerpc: Fix typos in Freescale copyright claimsYang Li
There are many cases that Semiconductor is misspelled. The patch fix these typos. Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-15powerpc/sysdev: Use module_platform_driver macroSrinivas Kandagatla
This patch removes some code duplication by using module_platform_driver. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-29Merge remote-tracking branch 'master' into queueMarcelo Tosatti
Merge reason: development work has dependency on kvm patches merged upstream. Conflicts: arch/powerpc/include/asm/Kbuild arch/powerpc/include/asm/kvm_para.h Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-10-10Merge branch 'for-upstream' of http://github.com/agraf/linux-2.6 into queueMarcelo Tosatti
* 'for-upstream' of http://github.com/agraf/linux-2.6: (56 commits) arch/powerpc/kvm/e500_tlb.c: fix error return code KVM: PPC: Book3S HV: Provide a way for userspace to get/set per-vCPU areas KVM: PPC: Book3S: Get/set guest FP regs using the GET/SET_ONE_REG interface KVM: PPC: Book3S: Get/set guest SPRs using the GET/SET_ONE_REG interface KVM: PPC: set IN_GUEST_MODE before checking requests KVM: PPC: e500: MMU API: fix leak of shared_tlb_pages KVM: PPC: e500: fix allocation size error on g2h_tlb1_map KVM: PPC: Book3S HV: Fix calculation of guest phys address for MMIO emulation KVM: PPC: Book3S HV: Remove bogus update of physical thread IDs KVM: PPC: Book3S HV: Fix updates of vcpu->cpu KVM: Move some PPC ioctl definitions to the correct place KVM: PPC: Book3S HV: Handle memory slot deletion and modification correctly KVM: PPC: Move kvm->arch.slot_phys into memslot.arch KVM: PPC: Book3S HV: Take the SRCU read lock before looking up memslots KVM: PPC: bookehv: Allow duplicate calls of DO_KVM macro KVM: PPC: BookE: Support FPU on non-hv systems KVM: PPC: 440: Implement mfdcrx KVM: PPC: 440: Implement mtdcrx Document IACx/DACx registers access using ONE_REG API KVM: PPC: E500: Remove E500_TLB_DIRTY flag ...
2012-10-05powerpc/fsl-soc: use CONFIG_EPAPR_PARAVIRT for hcallsScott Wood
Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-05Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc updates from Benjamin Herrenschmidt: "Some highlights in addition to the usual batch of fixes: - 64TB address space support for 64-bit processes by Aneesh Kumar - Gavin Shan did a major cleanup & re-organization of our EEH support code (IBM fancy PCI error handling & recovery infrastructure) which paves the way for supporting different platform backends, along with some rework of the PCIe code for the PowerNV platform in order to remove home made resource allocations and instead use the generic code (which is possible after some small improvements to it done by Gavin). - Uprobes support by Ananth N Mavinakayanahalli - A pile of embedded updates from Freescale folks, including new SoC and board supports, more KVM stuff including preparing for 64-bit BookE KVM support, ePAPR 1.1 updates, etc..." Fixup trivial conflicts in drivers/scsi/ipr.c * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc/iommu: Fix multiple issues with IOMMU pools code powerpc: Fix VMX fix for memcpy case driver/mtd:IFC NAND:Initialise internal SRAM before any write powerpc/fsl-pci: use 'Header Type' to identify PCIE mode powerpc/eeh: Don't release eeh_mutex in eeh_phb_pe_get powerpc: Remove tlb batching hack for nighthawk powerpc: Set paca->data_offset = 0 for boot cpu powerpc/perf: Sample only if SIAR-Valid bit is set in P7+ powerpc/fsl-pci: fix warning when CONFIG_SWIOTLB is disabled powerpc/mpc85xx: Update interrupt handling for IFC controller powerpc/85xx: Enable USB support in p1023rds_defconfig powerpc/smp: Do not disable IPI interrupts during suspend powerpc/eeh: Fix crash on converting OF node to edev powerpc/eeh: Lock module while handling EEH event powerpc/kprobe: Don't emulate store when kprobe stwu r1 powerpc/kprobe: Complete kprobe and migrate exception frame powerpc/kprobe: Introduce a new thread flag powerpc: Remove unused __get_user64() and __put_user64() powerpc/eeh: Global mutex to protect PE tree powerpc/eeh: Remove EEH PE for normal PCI hotplug ...
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