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* powerpc/qe: Increase MAX_QE_RISC to 4Anton Vorontsov2009-11-11
| | | | | | | | | MPC8569 CPUs have four QE RISCs, so we need to increase MAX_QE_RISC constant, otherwise qe_upload_firmware() fails at sanity checking. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge commit 'origin/master' into nextBenjamin Herrenschmidt2009-11-11
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| * powerpc: pasemi_defconfig updateOlof Johansson2009-11-10
| | | | | | | | | | | | | | | | | | pasemi_defconfig hasn't been updated for a year. Mostly a refresh of defaults, but this also disables 64K pages. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: 2.6.32 update of defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxxKumar Gala2009-11-05
| | | | | | | | | | | | | | | | | | Updated mpc85xx_{smp_}defconfig to enable: * XES_MPC85xx board * PCI MSI * RapidIO Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/8xxx: enable IPsec ESP by default on mpc83xx/mpc85xxKim Phillips2009-11-05
| | | | | | | | | | Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/83xx: Fix u-boot partion size for MPC8377E-WLAN boardsAnton Vorontsov2009-11-05
| | | | | | | | | | | | | | u-boot partition size should be 0x80000 (512 KB), not 0x8000 (32 KB). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: Fix USB GPIOs for MPC8569E-MDS boardsAnton Vorontsov2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes USB GPIOs numbers for MPC8569E-MDS boards, plus according to the latest HW Getting Started Guide (rev 3.3, pilot boards), USB "POWER" GPIO polarity has changed, it is no longer inverted. This patch makes USB Host somewhat work on pilot boards, though there are still some problems with determining devices speed and long bulk transfers. Reported-by: Liu Yu <Yu.Liu@freescale.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/82xx: kmalloc failure ignored in ep8248e_mdio_probe()Roel Kluin2009-11-05
| | | | | | | | | | | | | | | | | | Prevent NULL dereference if kmalloc() fails. Also clean up if of_mdiobus_register() returns an error. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: sbc8548 - fixup of PCI-e related DTS fieldsPaul Gortmaker2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI-e addressing was originally patterned of the MPC8548CDS which has PCI1, PCI2, and PCI-e. Since this board only has PCI1 and PCI-e, it makes more sense to be similar to the MPC8568MDS board. This does that by cutting the PCI/PCI-e I/O sizes from 16MB to 8MB and pulling the PCI-e I/O range back to 0xe280_0000 (the hole where PCI2 I/O would have been). This also fixes a typo where an extra zero made an 8MB range a 128MB range, removes the hole left by PCI2 from the aliases, and sets the clocks to match the oscillators that are actually on the board. With accompanying u-boot updates, PCI-e has been validated with both a sky2 card (1148:9e00) and an e1000 card (8086:108b). Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/kvm: Remove problematic BUILD_BUG_ON statementBenjamin Herrenschmidt2009-11-05
| | | | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/pci: Fix regression in powerpc MSI-XAndre Detsch2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch f598282f5145036312d90875d0ed5c14b49fd8a7 exposed a problem in powerpc MSI-X functionality, making network interfaces such as ixgbe and cxgb3 stop to work when MSI-X is enabled. RX interrupts were not being generated. The problem was caused because MSI irq was not being effectively unmasked after device initialization. Signed-off-by: Andre Detsch <adetsch@br.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Avoid giving out RTC dates below EPOCHBenjamin Herrenschmidt2009-11-05
| | | | | | | | | | | | | | Doing so causes xtime to be negative which crashes the timekeeping code in funny ways when doing suspend/resume Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/mm: Remove debug context clamping from nohash codeBenjamin Herrenschmidt2009-11-05
| | | | | | | | | | | | | | | | I inadvertently left that debug code enabled, causing the number of contexts to be clamped to 31 which is going to slow things down on 4xx and just plain breaks 8xx Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/kvm: Fix non-modular buildBenjamin Herrenschmidt2009-11-05
| | | | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge branch 'kvm' into nextBenjamin Herrenschmidt2009-11-05
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| * | Use hrtimers for the decrementerAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | Following S390's good example we should use hrtimers for the decrementer too! This patch converts the timer from the old mechanism to hrtimers. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Fix trace.hAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It looks like the variable "pc" is defined. At least the current code always failed on me stating that "pc" is already defined somewhere else. Let's use _pc instead, because that doesn't collide. Is this the right approach? Does it break on 440 too? If not, why not? Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Include Book3s_64 target in buildsystemAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | Now we have everything in place to be able to build KVM, so let's add it as config option and in the Makefile. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Export new PACA constants in asm-offsetsAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to access fields in the PACA from assembly code, we need to generate offsets using asm-offsets.c. So let's add the new PACA related bits, we just introduced! Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add fields to PACAAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For KVM we need to store some information in the PACA, so we need to extend it. This patch adds KVM SLB shadow related entries to the PACA and a field that indicates if we're inside a guest. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Export KVM symbols for moduleAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | To be able to keep KVM as module, we need to export the SLB trampoline addresses to the module, so it knows where to jump to. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Split init_new_context and destroy_contextAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For KVM we need to allocate a new context id, but don't really care about all the mm context around it. So let's split the alloc and destroy functions for the context id, so we can grab one without allocating an mm context. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Export symbols for KVM moduleAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want to be able to build KVM as a module. To enable us doing so, we need some more exports from core Linux parts. This patch exports all functions and variables that are required for KVM. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add Book3s_64 offsets to asm-offsets.cAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | We need to access some VCPU fields from assembly code. In order to get the proper offsets, we have to define them in asm-offsets.c. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Make head_64.S aware of KVM real mode codeAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to run some KVM trampoline code in real mode. Unfortunately, real mode only covers 8MB on Cell so we need to squeeze ourselves as low as possible. Also, we need to trap interrupts to get us back from guest state to host state without telling Linux about it. This patch adds interrupt traps and includes the KVM code that requires real mode in the real mode parts of Linux. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add desktop PowerPC specific emulationAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Little opcodes behave differently on desktop and embedded PowerPC cores. In order to reflect those differences, let's add some #ifdef code to emulate.c. We could probably also handle them in the core specific emulation files, but I would prefer to reuse as much code as possible. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add mfdec emulationAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We support setting the DEC to a certain value right now. Doing that basically triggers the CPU local timer. But there's also an mfdec command that enabled the OS to read the decrementor. This is required at least by all desktop and server PowerPC Linux kernels. It can't really hurt to allow embedded ones to do it as well though. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s_64 specific opcode emulationAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are generic parts of PowerPC that can be shared across all implementations and specific parts that only apply to BookE or desktop PPCs. This patch adds emulation for desktop specific opcodes that don't apply to BookE CPUs. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s_32 guest MMUAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds an implementation for a G3/G4 MMU, so we can run G3 and G4 guests in KVM on Book3s_64. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s_64 guest MMUAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | To be able to run a guest, we also need to implement a guest MMU. This patch adds MMU handling for Book3s_64 guests. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s_64 Host MMU handlingAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We designed the Book3S port of KVM as modular as possible. Most of the code could be easily used on a Book3S_32 host as well. The main difference between 32 and 64 bit cores is the MMU. To keep things well separated, we treat the book3s_64 MMU as one possible compile option. This patch adds all the MMU helpers the rest of the code needs in order to modify the host's MMU, like setting PTEs and segments. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s.cAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the book3s core handling file. Here everything that is generic to desktop PowerPC cores is handled, including interrupt injections, MSR settings, etc. It basically takes over the same role as booke.c for embedded PowerPCs. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add interrupt handling codeAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Getting from host state to the guest is only half the story. We also need to return to our host context and handle whatever happened to get us out of the guest. On PowerPC every guest exit is an interrupt. So all we need to do is trap the host's interrupt handlers and get into our #VMEXIT code to handle it. PowerPCs also have a register that can add an offset to the interrupt handlers' adresses which is what the booke KVM code uses. Unfortunately that is a hypervisor ressource and we also want to be able to run KVM when we're running in an LPAR. So we have to hook into the Linux interrupt handlers. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add SLB switching code for entry/exitAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the really low level of guest entry/exit code. Book3s_64 has an SLB, which stores all ESID -> VSID mappings we're currently aware of. The segments in the guest differ from the ones on the host, so we need to switch the SLB to tell the MMU that we're in a new context. So we store a shadow of the guest's SLB in the PACA, switch to that on entry and only restore bolted entries on exit, leaving the rest to the Linux SLB fault handler. That way we get a really clean way of switching the SLB. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add book3s_64 highmem asm codeAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the of entry / exit code. In order to switch between host and guest context, we need to switch register state and call the exit code handler on exit. This assembly file does exactly that. To finally enter the guest it calls into book3s_64_slb.S. On exit it gets jumped at from book3s_64_slb.S too. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add Book3s_64 intercept helpersAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | We need to intercept interrupt vectors. To do that, let's add a file we can always include which only activates the intercepts when we have then configured. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add asm/kvm_book3s.hAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | This adds the book3s specific header file that contains structs that are only valid on book3s specific code. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add Book3s fields to vcpu structsAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to store more information than we currently have for vcpus when running on Book3s. So let's extend the internal struct definitions. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Add Book3s definitionsAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need quite a bunch of new constants for KVM on Book3s, so let's define them now. These constants will be used in later patches. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Pass PVR in sregsAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now sregs is unused on PPC, so we can use it for initialization of the CPU. KVM on BookE always virtualizes the host CPU. On Book3s we go a step further and take the PVR from userspace that tells us what kind of CPU we are supposed to virtualize, because we support Book3s_32 and Book3s_64 guests. In order to get that information, we use the sregs ioctl, because we don't want to reset the guest CPU on every normal register set. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Move dirty logging code to sub-archAlexander Graf2009-11-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PowerPC code handles dirty logging in the generic parts atm. While this is great for "return -ENOTSUPP", we need to be rather target specific when actually implementing it. So let's split it to implementation specific code, so we can implement it for book3s. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | powerpc/kvm: Remove problematic BUILD_BUG_ON statementBenjamin Herrenschmidt2009-11-05
|/ / | | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/8xx: Fix build breakage with sparse irq changesBenjamin Herrenschmidt2009-10-30
| | | | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: pasemi_defconfig updateOlof Johansson2009-10-30
| | | | | | | | | | | | | | | | | | pasemi_defconfig hasn't been updated for a year. Mostly a refresh of defaults, but this also disables 64K pages. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Enable sparse irq_descs on powerpcMichael Ellerman2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | Defining CONFIG_SPARSE_IRQ enables generic code that gets rid of the static irq_desc array, and replaces it with an array of pointers to irq_descs. It also allows node local allocation of irq_descs, however we currently don't have the information available to do that, so we just allocate them on all on node 0. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Rearrange and fix show_interrupts() for sparse irq_descsMichael Ellerman2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | Move the default case out of the if, ie. when we're just displaying an irq. And consolidate all the odd cases at the top, ie. printing the header and footer. And in the process cope with sparse irq_descs. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Make virq_debug_show() cope with sparse irq_descsMichael Ellerman2009-10-30
| | | | | | | | | | | | Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/nvram_64: Mark init code __initThomas Gleixner2009-10-30
| | | | | | | | | | | | | | | | | | Mark all functions which are only called from nvram_init() __init. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@ozlabs.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/nvram_64: Check nvram_error_log_index in nvram_clear_error_log()Thomas Gleixner2009-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | nvram_clear_error_log() calls ppc_md.nvram_write() even when nvram_error_log_index is -1 (invalid). The nvram_write() function does not check for a negative offset. Check nvram_error_log_index as the other nvram log functions do. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@ozlabs.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/nvram_64: Remove unused codeThomas Gleixner2009-10-30
| | | | | | | | | | | | | | | | | | | | nvram_find_partition() has no user. The call site was removed in the arch/powerpc move, but the function stayed. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@ozlabs.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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