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| | * | | cpufreq: powerpc: move cpufreq driver to drivers/cpufreqViresh Kumar2013-06-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move cpufreq driver of powerpc platform to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * | | Merge branch 'cpufreq-next' of git://git.linaro.org/people/vireshk/linux ↵Rafael J. Wysocki2013-06-07
| | |\ \ \ | | | | |/ | | | |/| | | | | | | | | | | | | | | | into pm-cpufreq ARM cpufreq updates from Viresh Kumar.
| | * | | cpufreq: rename index as driver_data in cpufreq_frequency_tableViresh Kumar2013-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "index" field of struct cpufreq_frequency_table was never an index and isn't used at all by the cpufreq core. It only is useful for cpufreq drivers for their internal purposes. Many people nowadays blindly set it in ascending order with the assumption that the core will use it, which is a mistake. Rename it to "driver_data" as that's what its purpose is. All of its users are updated accordingly. [rjw: Changelog] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | | Merge tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linuxLinus Torvalds2013-07-03
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull clock framework updates from Mike Turquette: "The common clock framework changes for 3.11 include new clock drivers across several different platforms and architectures, fixes to existing drivers, a MAINTAINERS file fix and improvements to the basic clock types that allow them to be of use to more platforms than before. Only a few fixes to the core framework are included with most all of the changes landing in the various clock drivers themselves." * tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linux: (55 commits) clk: tegra: fix ifdef for tegra_periph_reset_assert inline clk: tegra: provide tegra_periph_reset_assert alternative clk: exynos4: Fix clock aliases for cpufreq related clocks clk: samsung: Add MUX_FA macro to pass flag and alias clk: add support for Rockchip gate clocks clk: vexpress: Make the clock drivers directly available for arm64 clk: vexpress: Use full node name to identify individual clocks clk: tegra: T114: add DFLL DVCO reset control clk: tegra: T114: add DFLL source clocks clk: tegra: T114: add FCPU clock shaper programming, needed by the DFLL clk: gate: add CLK_GATE_HIWORD_MASK clk: divider: add CLK_DIVIDER_HIWORD_MASK flag clk: mux: add CLK_MUX_HIWORD_MASK clk: Always notify whole subtree when reparenting MAINTAINERS: make drivers/clk entry match subdirs clk: honor CLK_GET_RATE_NOCACHE in clk_set_rate clk: use clk_get_rate() for debugfs clk: tegra: Use override bits when needed clk: tegra: override bits for Tegra30 PLLM clk: tegra: override bits for Tegra114 PLLM ...
| * | | | | clk: add PowerPC corenet clock driver supportTang Yuantian2013-05-29
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the clock driver for Freescale PowerPC corenet series SoCs using common clock infrastructure. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2013-07-02
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS patches (part 1) from Al Viro: "The major change in this pile is ->readdir() replacement with ->iterate(), dealing with ->f_pos races in ->readdir() instances for good. There's a lot more, but I'd prefer to split the pull request into several stages and this is the first obvious cutoff point." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (67 commits) [readdir] constify ->actor [readdir] ->readdir() is gone [readdir] convert ecryptfs [readdir] convert coda [readdir] convert ocfs2 [readdir] convert fatfs [readdir] convert xfs [readdir] convert btrfs [readdir] convert hostfs [readdir] convert afs [readdir] convert ncpfs [readdir] convert hfsplus [readdir] convert hfs [readdir] convert befs [readdir] convert cifs [readdir] convert freevxfs [readdir] convert fuse [readdir] convert hpfs reiserfs: switch reiserfs_readdir_dentry to inode reiserfs: is_privroot_deh() needs only directory inode, actually ...
| * | | | | [readdir] switch dcache_readdir() users to ->iterate()Al Viro2013-06-29
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | new helpers - dir_emit_dot(file, ctx, dentry), dir_emit_dotdot(file, ctx), dir_emit_dots(file, ctx). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | | powerpc/eeh: Fix fetching bus for single-dev-PEGavin Shan2013-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While running Linux as guest on top of phyp, we possiblly have PE that includes single PCI device. However, we didn't return its PCI bus correctly and it leads to failure on recovery from EEH errors for single-dev-PE. The patch fixes the issue. Cc: <stable@vger.kernel.org> # v3.7+ Cc: Steve Best <sbest@us.ibm.com> Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | | powerpc/eeh: Add eeh_dev to the cache during bootThadeu Lima de Souza Cascardo2013-06-27
|/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit f8f7d63fd96ead101415a1302035137a866f8998 ("powerpc/eeh: Trace eeh device from I/O cache") broke EEH on pseries for devices that were present during boot and have not been hotplugged/DLPARed. eeh_check_failure will get the eeh_dev from the cache, and will get NULL. eeh_addr_cache_build adds the addresses to the cache, but eeh_dev for the giving pci_device is not set yet. Just reordering the call to eeh_addr_cache_insert_dev works fine. The ordering is similar to the one in eeh_add_device_late. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | / / powerpc/eeh: Don't check RTAS token to get PE addrGavin Shan2013-06-09
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RTAS token "ibm,get-config-addr-info" or ibm,get-config-addr-info2" are used to retrieve the PE address according to PCI address, which made up of domain/bus/slot/function. If we don't have those 2 tokens, the domain/bus/slot/function would be used as the address for EEH RTAS operations. Some older f/w might not have those 2 tokens and that blocks the EEH functionality to be initialized. It was introduced by commit e2af155c ("powerpc/eeh: pseries platform EEH initialization"). The patch skips the check on those 2 tokens so we can bring up EEH functionality successfully. And domain/bus/slot/function will be used as address for EEH RTAS operations. Cc: <stable@vger.kernel.org> # v3.4+ Reported-by: Robert Knight <knight@princeton.edu> Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Tested-by: Robert Knight <knight@princeton.edu> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | powerpc/pseries: Always enable CONFIG_HOTPLUG_CPU on PSERIES SMPSrivatsa S. Bhat2013-05-31
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adam Lackorzynski reported the following build failure on !CONFIG_HOTPLUG_CPU configuration: CC arch/powerpc/kernel/rtas.o arch/powerpc/kernel/rtas.c: In function ‘rtas_cpu_state_change_mask’: arch/powerpc/kernel/rtas.c:843:4: error: implicit declaration of function ‘cpu_down’ [-Werror=implicit-function-declaration] cc1: all warnings being treated as errors make[1]: *** [arch/powerpc/kernel/rtas.o] Error 1 make: *** [arch/powerpc/kernel] Error 2 The build fails because cpu_down() is defined only under CONFIG_HOTPLUG_CPU. Looking further, the mobility code in pseries is one of the call-sites which uses rtas_ibm_suspend_me(), which in turn calls rtas_cpu_state_change_mask(). And the mobility code is unconditionally compiled-in (it does not fall under any Kconfig option). And commit 120496ac (powerpc: Bring all threads online prior to migration/hibernation) which introduced this build regression is critical for the proper functioning of the migration code. So it appears that the only solution to this problem is to enable CONFIG_HOTPLUG_CPU if SMP is enabled on PPC_PSERIES platforms. So make that change in the Kconfig. Reported-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de> Cc: stable@vger.kernel.org Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pseries: Make 32-bit MSI quirk work on systems lacking firmware supportBrian King2013-05-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent commit e61133dda480062d221f09e4fc18f66763f8ecd0 added support for a new firmware feature to force an adapter to use 32 bit MSIs. However, this firmware is not available for all systems. The hack below allows devices needing 32 bit MSIs to work on these systems as well. It is careful to only enable this on Gen2 slots, which should limit this to configurations where this hack is needed and tested to work. [Small change to factor out the hack into a separate function -- BenH] Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/powernv: Build a zImage.epaprBenjamin Herrenschmidt2013-05-24
| | | | | | | | | | | | | | The zImage.epapr wrapper allows to use zImages when booting via a flat device-tree which can be used on powernv. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Make radeon 32-bit MSI quirk work on powernvBenjamin Herrenschmidt2013-05-24
| | | | | | | | | | | | | | | | | | This moves the quirk itself to pci_64.c as to get built on all ppc64 platforms (the only ones with a pci_dn), factors the two implementations of get_pdn() into a single pci_get_dn() and use the quirk to do 32-bit MSIs on IODA based powernv platforms. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/powernv: Fix condition for when to invalidate the TCE cacheBenjamin Herrenschmidt2013-05-24
|/ | | | | | | | | We use two flags, one to indicate an invalidation is needed after creating a new entry and one to indicate an invalidation is needed after removing an entry. However we were testing the wrong flag in the remove case. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'merge' of ↵Linus Torvalds2013-05-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "This is mostly bug fixes (some of them regressions, some of them I deemed worth merging now) along with some patches from Li Zhong hooking up the new context tracking stuff (for the new full NO_HZ)" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits) powerpc: Set show_unhandled_signals to 1 by default powerpc/perf: Fix setting of "to" addresses for BHRB powerpc/pmu: Fix order of interpreting BHRB target entries powerpc/perf: Move BHRB code into CONFIG_PPC64 region powerpc: select HAVE_CONTEXT_TRACKING for pSeries powerpc: Use the new schedule_user API on userspace preemption powerpc: Exit user context on notify resume powerpc: Exception hooks for context tracking subsystem powerpc: Syscall hooks for context tracking subsystem powerpc/booke64: Fix kernel hangs at kernel_dbg_exc powerpc: Fix irq_set_affinity() return values powerpc: Provide __bswapdi2 powerpc/powernv: Fix starting of secondary CPUs on OPALv2 and v3 powerpc/powernv: Detect OPAL v3 API version powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning again powerpc: Make CONFIG_RTAS_PROC depend on CONFIG_PROC_FS powerpc: Bring all threads online prior to migration/hibernation powerpc/rtas_flash: Fix validate_flash buffer overflow issue powerpc/kexec: Fix kexec when using VMX optimised memcpy powerpc: Fix build errors STRICT_MM_TYPECHECKS ...
| * powerpc: select HAVE_CONTEXT_TRACKING for pSeriesLi Zhong2013-05-14
| | | | | | | | | | | | | | Start context tracking support from pSeries. Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Fix irq_set_affinity() return valuesAlexander Gordeev2013-05-14
| | | | | | | | | | Signed-off-by: Alexander Gordeev <agordeev@redhat.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powernv: Fix starting of secondary CPUs on OPALv2 and v3Benjamin Herrenschmidt2013-05-14
| | | | | | | | | | | | | | | | | | The current code fails to handle kexec on OPALv2. This fixes it and adds code to improve the situation on OPALv3 where we can query the CPU status from the firmware and decide what to do based on that. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powernv: Detect OPAL v3 API versionBenjamin Herrenschmidt2013-05-14
| | | | | | | | | | | | Future firmwares will support that new version Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Make CONFIG_RTAS_PROC depend on CONFIG_PROC_FSMichael Ellerman2013-05-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are getting build errors with CONFIG_PROC_FS=n: arch/powerpc/kernel/rtas_flash.c In function 'rtas_flash_init': 745:33: error: unused variable 'f' [-Werror=unused-variable] But rtas_flash.c should not be built when CONFIG_PROC_FS=n, beacause all it does is provide a /proc interface to the RTAS flash routines. CONFIG_RTAS_FLASH already depends on CONFIG_RTAS_PROC, to indicate that it depends on the RTAS proc support, but CONFIG_RTAS_PROC does not depend on CONFIG_PROC_FS. So fix that. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc: Bring all threads online prior to migration/hibernationRobert Jennings2013-05-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch brings online all threads which are present but not online prior to migration/hibernation. After migration/hibernation those threads are taken back offline. During migration/hibernation all online CPUs must call H_JOIN, this is required by the hypervisor. Without this patch, threads that are offline (H_CEDE'd) will not be woken to make the H_JOIN call and the OS will be deadlocked (all threads either JOIN'd or CEDE'd). Cc: <stable@kernel.org> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powernv: Improve kexec reliabilityBenjamin Herrenschmidt2013-05-10
| | | | | | | | | | | | | | | | | | | | We add a machine_shutdown hook that frees the OPAL interrupts (so they get masked at the source and don't fire while kexec'ing) and which triggers an IODA reset on all the PCIe host bridges which will have the effect of blocking all DMAs and subsequent PCIs interrupts. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * powerpc/powernv: Properly drop characters if console is closedBenjamin Herrenschmidt2013-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the firmware returns an error such as "closed" (or hardware error), we should drop characters. Currently we only do that when a firmware compatible with OPAL v2 APIs is detected, in the code that calls opal_console_write_buffer_space(), which didn't exist with OPAL v1 (or didn't work). However, when enabling early debug consoles, the flag indicating that v2 is supported isn't set yet, causing us, in case of errors or closed console, to spin forever. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds2013-05-09
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
| * powerpc: remove redundant GENERIC_GPIO selectionAlexandre Courbot2013-03-20
| | | | | | | | | | | | | | | | | | ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO, so there is no need to select it explicitly. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* | powerpc/pci: Support per-aperture memory offsetBenjamin Herrenschmidt2013-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | powerpc/cell/iommu: Improve error message for missing nodeBenjamin Herrenschmidt2013-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | Some devices don't have a correct node ID and thus can't be attached to an iommu. The message displayed by the iommu code isn't very useful if you don't have a device-tree node as it tries to print the device-tree path but not the struct device name. Improve this by printing the device name as well. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/cell/spufs: Fix status attribute permissionBenjamin Herrenschmidt2013-05-05
| | | | | | | | | | | | | | | | We are registering the attribute with permission 0644 but it doesn't have a store callback, which causes WARN_ON's during boot. Fix the permission. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pnv: Fix "compatible" property for P8 PHBBenjamin Herrenschmidt2013-05-05
| | | | | | | | | | | | | | The property should be "ibm,power8-pciex", not "ibm,p8-pciex". The latter was changed in FW because it was inconsistent with the rest of the nodes. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/powerpnv: Properly handle failure starting CPUsBenjamin Herrenschmidt2013-05-05
| | | | | | | | | | | | | | | | If OPAL returns an error, propagate it upward rather than spinning seconds waiting for a CPU that will never show up Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pseries: Perform proper max_bus_speed detectionKleber Sacilotto de Souza2013-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | On pseries machines the detection for max_bus_speed should be done through an OpenFirmware property. This patch adds a function to perform this detection and a hook to perform dynamic adding of the function only for pseries. This is done by overwriting the weak pcibios_root_bridge_prepare function which is called by pci_create_root_bus(). From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com> Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pseries: Force 32 bit MSIs for devices that require itBrian King2013-05-05
| | | | | | | | | | | | | | | | | | | | | | The following patch implements a new PAPR change which allows the OS to force the use of 32 bit MSIs, regardless of what the PCI capabilities indicate. This is required for some devices that advertise support for 64 bit MSIs but don't actually support them. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/powernv: Defer OPAL exception handler registrationJeremy Kerr2013-05-05
| | | | | | | | | | | | | | | | | | | | | | | | Currently, the OPAL exception vectors are registered before the feature fixups are processed. This means that the now-firmware-owned vectors will likely be overwritten by the kernel. This change moves the exception registration code to an early initcall, rather than at machine_init time. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge branch 'next' of ↵Linus Torvalds2013-05-02
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * | powerpc: Decode the pte-lp-encoding bits correctly.Aneesh Kumar K.V2013-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We look at both the segment base page size and actual page size and store the pte-lp-encodings in an array per base page size. We also update all relevant functions to take actual page size argument so that we can use the correct PTE LP encoding in HPTE. This should also get the basic Multiple Page Size per Segment (MPSS) support. This is needed to enable THP on ppc64. [Fixed PR KVM build --BenH] Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Use encode avpn where we need only avpn valuesAneesh Kumar K.V2013-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In all these cases we are doing something similar to HPTE_V_COMPARE(hpte_v, want_v) which ignores the HPTE_V_LARGE bit With MPSS support we would need actual page size to set HPTE_V_LARGE bit and that won't be available in most of these cases. Since we are ignoring HPTE_V_LARGE bit, use the avpn value instead. There should not be any change in behaviour after this patch. Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Use signed formatting when printing errorAneesh Kumar K.V2013-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | PAPR defines these errors as negative values. So print them accordingly for easy debugging. Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | Merge remote-tracking branch 'kumar/next' into nextBenjamin Herrenschmidt2013-04-29
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | From Kumar Gala: << Add support for T4 and B4 SoC families from Freescale, e6500 altivec support, some various board fixes and other minor cleanups. >>
| | * | powerpc/fsl-booke: Add B4_QDS board supportShaveta Leekha2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add support for B4 board in board file b4_qds.c, It is common for B4860, B4420 and B4220QDS as they share same QDS board - Add B4QDS support in Kconfig and Makefile B4860QDS is a high-performance computing evaluation, development and test platform supporting the B4860 QorIQ Power Architecture processor, with following major features: - Four dual-threaded e6500 Power Architecture processors organized in one cluster-each core runs up to 1.8 GHz - Two DDR3/3L controllers for high-speed memory interface each runs at up to 1866.67 MHz - CoreNet fabric that fully supports coherency using MESI protocol between the e6500 cores, SC3900 FVP cores, memories and external interfaces. - Data Path Acceleration Architecture having FMAN, QMan, BMan, SEC 5.3 and RMAN - Large internal cache memory with snooping and stashing capabilities - Sixteen 10-GHz SerDes lanes that serve: - Two SRIO interfaces. Each supports up to 4 lanes and a total of up to 8 lanes - Up to 8-lanes Common Public Radio Interface (CPRI) controller for glue-less antenna connection - Two 10-Gbit Ethernet controllers (10GEC) - Six 1G/2.5-Gbit Ethernet controllers for network communications - PCI Express controller - Debug (Aurora) - Various system peripherals B4420 and B4220 have some differences in comparison to B4860 with fewer core/clusters(both SC3900 and e6500), fewer DDR controllers, fewer serdes lanes, fewer SGMII interfaces and reduced target frequencies. Key differences between B4860 and B4420: B4420 has: - Fewer e6500 cores: 1 cluster with 2 e6500 cores - Fewer SC3900 cores/clusters: 1 cluster with 2 SC3900 cores per cluster - Single DDRC @ 1.6GHz - 2 X 4 lane serdes - 3 SGMII interfaces - no sRIO - no 10G Key differences between B4860 and B4220: B4220 has: - Fewer e6500 cores: 1 cluster with 1 e6500 core - Fewer SC3900 cores/clusters: 1 cluster with 2 SC3900 cores per cluster - Single DDRC @ 1.33GHz - 2 X 2 lane serdes - 2 SGMII interfaces - no sRIO - no 10G Signed-off-by: Shaveta Leekha <shaveta@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc: remove "config MPC10X_OPENPIC"Paul Bolle2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The last users of Kconfig symbol MPC10X_OPENPIC were removed in v2.6.27. Its Kconfig entry can be removed now. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/85xx: fix a bug with the parameter of mpic_reset_core()Chen-Hui Zhao2013-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpic_reset_core() need a logical cpu number instead of physical. Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/85xx: sgy-cts1000 - Remove __dev* attributesBen Collins2013-04-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Somehow the driver snuck in with these still in it. Signed-off-by: Ben Collins <ben.c@servergy.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/fsl: remove the PPC_CLOCK dependencyTang Yuantian2013-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Config FSL_SOC does not depend on PPC_CLOCK anymore since the following commit got merged: 93abe8e (clk: add non CONFIG_HAVE_CLK routines) Config CPM does not use PPC_CLOCK either currently. So remove them. PPC_CLOCK also keeps Freescale PowerPC archtecture from supporting COMMON_CLK. Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/fsl-booke: Add initial T4240QDS board supportKumar Gala2013-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some minor changes to the common corenet_ds.c code are needed to support the T4240QDS: * Add support for "fsl,qoriq-pcie-v3.0" controller * Bump max # of IRQs to 512 (T4240 supports more interrupts than previous SoCs). Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| | * | powerpc/85xx: Add AltiVec support for e6500Kumar Gala2013-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The e6500 core adds support for AltiVec on a Book-E class processor. Connect up all the various exception handling code and build config mechanisms to allow user spaces apps to utilize AltiVec. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | | Merge remote-tracking branch 'agust/next' into nextBenjamin Herrenschmidt2013-04-29
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From Anatolij Gustschin: << There are some changes for mpc5121 generic platform code to support mpc5125 SoC and DTS files for ac14xx and MPC5125-TWR boards. >>
| | * | | powerpc/512x: add ifm ac14xx boardAnatolij Gustschin2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add dts file for ac14xx board and its board compatible string to the generic mpc512x board match list. Also add phandle to the dma DT node since there is a change (for MPC5121 SDHC DMA support) merged via linux-mmc tree with reference to the dma controller node in the sdhc node. Signed-off-by: Anatolij Gustschin <agust@denx.de>
| | * | | powerpc/mpc512x: add platform code for MPC5125.Matteo Facchinetti2013-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tested on MPC5125 Tower evaluation board with mpc512x_defconfig compile configuration. In detail, supports for: - PSC / UART - RTC - ETH - DIU - I2C Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it> Signed-off-by: Anatolij Gustschin <agust@denx.de>
| | * | | powerpc/512x: move mpc5121_generic platform to mpc512x_generic.Matteo Facchinetti2013-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides a base for using 512x_generic platform on mpc5125 boards. By this way 512x_GENERIC it could be used for all generic mpc512x boards and kernel could be compiled with mpc512x_defconfig. Signed-off-by: Matteo Facchinetti <matteo.facchinetti@sirius-es.it> [agust: applied s/mpc5121/mpc512x in mpc512x_generic.c] Signed-off-by: Anatolij Gustschin <agust@denx.de>