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81d7cac4 |
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24-Jul-2023 |
Rob Herring <robh@kernel.org> |
powerpc: Explicitly include correct DT includes The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> [mpe: Fixup maple/setup.c which needs platform_device] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230724210247.778034-1-robh@kernel.org
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#
4d57e351 |
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10-Mar-2023 |
Rob Herring <robh@kernel.org> |
powerpc: Use of_property_read_bool() for boolean properties It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. Convert reading boolean properties to of_property_read_bool(). Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230310144659.1541127-1-robh@kernel.org
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#
0aafbdf3 |
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18-Feb-2023 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc: Make generic_calibrate_decr() the default ppc_md.calibrate_decr() is a mandatory item. Its nullity is never checked so it must be non null on all platforms. Most platforms define generic_calibrate_decr() as their ppc_md.calibrate_decr(). Have time_init() call generic_calibrate_decr() when ppc_md.calibrate_decr() is NULL, and remove default assignment from all machines. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/6cb9865d916231c38401ba34ad1a98c249fae135.1676711562.git.christophe.leroy@csgroup.eu
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#
08273c9f |
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09-Feb-2023 |
Nathan Lynch <nathanl@linux.ibm.com> |
powerpc/rtas: arch-wide function token lookup conversions With the tokens for all implemented RTAS functions now available via rtas_function_token(), which is optimal and safe for arbitrary contexts, there is no need to use rtas_token() or cache its result. Most conversions are trivial, but a few are worth describing in more detail: * Error injection token comparisons for lockdown purposes are consolidated into a simple predicate: token_is_restricted_errinjct(). * A couple of special cases in block_rtas_call() do not use rtas_token() but perform string comparisons against names in the function table. These are converted to compare against token values instead, which is logically equivalent but less expensive. * The lookup for the ibm,os-term token can be deferred until needed, instead of caching it at boot to avoid device tree traversal during panic. * Since rtas_function_token() accesses a read-only data structure without taking any locks, xmon's lookup of set-indicator can be performed as needed instead of cached at startup. Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230125-b4-powerpc-rtas-queue-v3-20-26929c8cce78@linux.ibm.com
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#
e6f6390a |
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08-Mar-2022 |
Christophe Leroy <christophe.leroy@csgroup.eu> |
powerpc: Add missing headers Don't inherit headers "by chances" from asm/prom.h, asm/mpc52xx.h, asm/pci.h etc... Include the needed headers, and remove asm/prom.h when it was needed exclusively for pulling necessary headers. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/be8bdc934d152a7d8ee8d1a840d5596e2f7d85e0.1646767214.git.christophe.leroy@csgroup.eu
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#
fbbefb32 |
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02-Nov-2020 |
Oliver O'Halloran <oohall@gmail.com> |
powerpc/pci: Move PHB discovery for PCI_DN using platforms Make powernv, pseries, powermac and maple use ppc_mc.discover_phbs. These platforms need to be done together because they all depend on pci_dn's being created from the DT. The pci_dn contains a pointer to the relevant pci_controller so they need to be created after the pci_controller structures are available, but before PCI devices are scanned. Currently this ordering is provided by initcalls and the sequence is: 1. PHBs are discovered (setup_arch) (early boot, pre-initcalls) 2. pci_dn are created from the unflattended DT (core initcall) 3. PHBs are scanned pcibios_init() (subsys initcall) The new ppc_md.discover_phbs() function is also a core_initcall so we can't guarantee ordering between the creation of pci_controllers and the creation of pci_dn's which require a pci_controller. We could use the postcore, or core_sync initcall levels, but it's cleaner to just move the pci_dn setup into the per-PHB inits which occur inside of .discover_phb() for these platforms. This brings the boot-time path in line with the PHB hotplug path that is used for pseries DLPAR operations too. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> [mpe: Squash powermac & maple in to avoid breakage those platforms, convert memblock allocs to use kmalloc to avoid warnings] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201103043523.916109-2-oohall@gmail.com
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#
e31cf2f4 |
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08-Jun-2020 |
Mike Rapoport <rppt@kernel.org> |
mm: don't include asm/pgtable.h if linux/mm.h is already included Patch series "mm: consolidate definitions of page table accessors", v2. The low level page table accessors (pXY_index(), pXY_offset()) are duplicated across all architectures and sometimes more than once. For instance, we have 31 definition of pgd_offset() for 25 supported architectures. Most of these definitions are actually identical and typically it boils down to, e.g. static inline unsigned long pmd_index(unsigned long address) { return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1); } static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) { return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address); } These definitions can be shared among 90% of the arches provided XYZ_SHIFT, PTRS_PER_XYZ and xyz_page_vaddr() are defined. For architectures that really need a custom version there is always possibility to override the generic version with the usual ifdefs magic. These patches introduce include/linux/pgtable.h that replaces include/asm-generic/pgtable.h and add the definitions of the page table accessors to the new header. This patch (of 12): The linux/mm.h header includes <asm/pgtable.h> to allow inlining of the functions involving page table manipulations, e.g. pte_alloc() and pmd_alloc(). So, there is no point to explicitly include <asm/pgtable.h> in the files that include <linux/mm.h>. The include statements in such cases are remove with a simple loop: for f in $(git grep -l "include <linux/mm.h>") ; do sed -i -e '/include <asm\/pgtable.h>/ d' $f done Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mike Rapoport <rppt@kernel.org> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-1-rppt@kernel.org Link: http://lkml.kernel.org/r/20200514170327.31389-2-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
af6cf95c |
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23-Mar-2020 |
Nathan Chancellor <nathan@kernel.org> |
powerpc/maple: Fix declaration made after definition When building ppc64 defconfig, Clang errors (trimmed for brevity): arch/powerpc/platforms/maple/setup.c:365:1: error: attribute declaration must precede definition [-Werror,-Wignored-attributes] machine_device_initcall(maple, maple_cpc925_edac_setup); ^ machine_device_initcall expands to __define_machine_initcall, which in turn has the macro machine_is used in it, which declares mach_##name with an __attribute__((weak)). define_machine actually defines mach_##name, which in this file happens before the declaration, hence the warning. To fix this, move define_machine after machine_device_initcall so that the declaration occurs before the definition, which matches how machine_device_initcall and define_machine work throughout arch/powerpc. While we're here, remove some spaces before tabs. Fixes: 8f101a051ef0 ("edac: cpc925 MC platform device setup") Reported-by: Nick Desaulniers <ndesaulniers@google.com> Suggested-by: Ilie Halip <ilie.halip@gmail.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200323222729.15365-1-natechancellor@gmail.com
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#
1e353198 |
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20-Jan-2020 |
Chen Zhou <chenzhou10@huawei.com> |
powerpc/maple: Fix comparing pointer to 0 Fixes coccicheck warning: arch/powerpc/platforms/maple/setup.c:232:15-16: WARNING comparing pointer to 0 Compare pointer-typed values to NULL rather than 0. Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200121013153.9937-1-chenzhou10@huawei.com
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#
4c82266d |
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18-Dec-2019 |
Arvind Sankar <nivedita@alum.mit.edu> |
arch/powerpc/setup: Drop dummy_con initialization con_init in tty/vt.c will now set conswitchp to dummy_con if it's unset. Drop it from arch setup code. Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Link: https://lore.kernel.org/r/20191218214506.49252-18-nivedita@alum.mit.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2874c5fd |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
7c98bd72 |
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05-Sep-2016 |
Daniel Axtens <dja@axtens.net> |
powerpc/sparse: Make a bunch of things static Squash a bunch of sparse warnings by making things static. Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
f2d57694 |
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04-Jul-2016 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
powerpc: Get rid of ppc_md.init_early() It is now called right after platform probe, so the probe function can just do the job. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
406b0b6a |
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04-Jul-2016 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
powerpc/64: Move 64-bit probe_machine() to later in the boot process We no long need the machine type that early, so we can move probe_machine() to after the device-tree has been expanded. This will allow further consolidation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
166dd7d3 |
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04-Jul-2016 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
powerpc/64: Move MMU backend selection out of platform code We move it into early_mmu_init() based on firmware features. For PS3, we have to move the setting of these into early_init_devtree(). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
c40785ad |
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04-Jul-2016 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
powerpc/dart: Use a cachable DART Instead of punching a hole in the linear mapping, just use normal cachable memory, and apply the flush sequence documented in the CPC625 (aka U3) user manual. This allows us to remove quite a bit of code related to the early allocation of the DART and the hole in the linear mapping. We can also get rid of the copy of the DART for suspend/resume as the original memory can just be saved/restored now, as long as we properly sync the caches. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [mpe: Integrate dart_init() fix to return ENODEV when DART disabled] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
95ec77c0 |
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11-Jul-2016 |
Daniel Axtens <dja@axtens.net> |
powerpc: Make ppc_md.{halt, restart} __noreturn powernv marks it's halt and restart calls as __noreturn. However, ppc_md does not have this annotation. Add the annotation to ppc_md, and then to every halt/restart function that is missing it. Additionally, I have verified that all of these functions do not return. Occasionally I have added a spin loop to be sure. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
19124d6d |
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30-Mar-2015 |
Daniel Axtens <dja@axtens.net> |
powerpc/maple: Move controller ops from ppc_md to controller_ops This moves the Maple platform to use the pci_controller_ops structure rather than ppc_md for PCI controller operations. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
798248a3 |
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30-Mar-2015 |
Daniel Axtens <dja@axtens.net> |
powerpc: dart_iommu: optionally populate controller_ops on init If a pci_controller_ops struct is provided to iommu_init_early_dart, populate that with the DMA setup ops, rather than ppc_md. If NULL is provided, populate ppc_md as before. This also patches the call sites for Maple and Power Mac to pass NULL, so existing behaviour is preserved. The benefit of making this optional is that it means we don't have to change dart, Maple and Power Mac over to the controller_ops system in one fell swoop. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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#
9178ba29 |
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13-Oct-2014 |
Alexander Graf <agraf@suse.de> |
powerpc: Convert power off logic to pm_power_off The generic Linux framework to power off the machine is a function pointer called pm_power_off. The trick about this pointer is that device drivers can potentially implement it rather than board files. Today on powerpc we set pm_power_off to invoke our generic full machine power off logic which then calls ppc_md.power_off to invoke machine specific power off. However, when we want to add a power off GPIO via the "gpio-poweroff" driver, this card house falls apart. That driver only registers itself if pm_power_off is NULL to ensure it doesn't override board specific logic. However, since we always set pm_power_off to the generic power off logic (which will just not power off the machine if no ppc_md.power_off call is implemented), we can't implement power off via the generic GPIO power off driver. To fix this up, let's get rid of the ppc_md.power_off logic and just always use pm_power_off as was intended. Then individual drivers such as the GPIO power off driver can implement power off logic via that function pointer. With this patch set applied and a few patches on top of QEMU that implement a power off GPIO on the virt e500 machine, I can successfully turn off my virtual machine after halt. Signed-off-by: Alexander Graf <agraf@suse.de> [mpe: Squash into one patch and update changelog based on cover letter] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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ae3a197e |
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28-Mar-2012 |
David Howells <dhowells@redhat.com> |
Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PowerPC. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> cc: linuxppc-dev@lists.ozlabs.org
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e55d7f73 |
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22-Dec-2011 |
Kyle Moffett <Kyle.D.Moffett@boeing.com> |
powerpc/mpic: Remove duplicate MPIC_WANTS_RESET flag There are two separate flags controlling whether or not the MPIC is reset during initialization, which is completely unnecessary, and only one of them can be specified in the device tree. Also, most platforms in-tree right now do actually want to reset the MPIC during initialization anyways, which means lots of duplicate code passing the MPIC_WANTS_RESET flag. Fix all of the callers which currently do not pass the MPIC_WANTS_RESET flag to pass the MPIC_NO_RESET flag, then remove the MPIC_WANTS_RESET flag and make the code reset the MPIC by default. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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be8bec56 |
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01-Dec-2011 |
Kyle Moffett <Kyle.D.Moffett@boeing.com> |
powerpc/mpic: Invert the meaning of MPIC_PRIMARY It turns out that there are only 2 in-tree platforms which use MPICs which are not "primary": IBM Cell and PowerMac. To reduce the complexity of the typical board setup code, invert the MPIC_PRIMARY bit into MPIC_SECONDARY. Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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#
66b15db6 |
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27-May-2011 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
powerpc: add export.h to files making use of EXPORT_SYMBOL With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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8a0360a5 |
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16-Jun-2011 |
Dmitry Baryshkov <dbaryshkov@gmail.com> |
powerpc/maple: Register CPC925 EDAC device on all boards with CPC925 Currently Maple setup code creates cpc925_edac device only on Motorola ATCA-6101 blade. Make setup code check bridge revision and enable EDAC on all U3H bridges. Verified on Momentum MapleD (ppc970fx kit) board. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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a8e25c61 |
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28-Aug-2010 |
Julia Lawall <julia@diku.dk> |
powerpc/maple: Add of_node_put to avoid memory leak Add a call to of_node_put in the error handling code following a call to of_find_node_by_path. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E,E1; statement S; @@ *x = (of_find_node_by_path |of_find_node_by_name |of_find_node_by_phandle |of_get_parent |of_get_next_parent |of_get_next_child |of_find_compatible_node |of_match_node )(...); ... if (x == NULL) S <... when != x = E *if (...) { ... when != of_node_put(x) when != if (...) { ... of_node_put(x); ... } ( return <+...x...+>; | * return ...; ) } ...> of_node_put(x); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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95f72d1e |
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11-Jul-2010 |
Yinghai Lu <yinghai@kernel.org> |
lmb: rename to memblock via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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5a0e3ad6 |
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24-Mar-2010 |
Tejun Heo <tj@kernel.org> |
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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8f101a05 |
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17-Jun-2009 |
Harry Ciao <qingtao.cao@windriver.com> |
edac: cpc925 MC platform device setup Fix up the number of cells for the values of CPC925 Memory Controller, and setup related platform device during system booting up, against which CPC925 Memory Controller EDAC driver would be matched. Signed-off-by: Harry Ciao <qingtao.cao@windriver.com> Cc: Doug Thompson <norsk5@yahoo.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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5be85548 |
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15-Dec-2008 |
Anton Vorontsov <avorontsov@ru.mvista.com> |
powerpc: Remove default kexec/crash_kernel ops assignments Default ops are implicit now. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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9d5a9e74 |
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27-Jun-2008 |
Adrian Bunk <bunk@kernel.org> |
Remove asm/a.out.h files for all architectures without a.out support. This patch also includes the required removal of (unused) inclusion of <asm/a.out.h> <linux/a.out.h>'s in the arch/ code for these architectures. [dwmw2: updated for 2.6.27-rc] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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53378c28 |
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12-Mar-2008 |
Nathan Lynch <ntl@pobox.com> |
[POWERPC] maple: Use platform name in define_machine() Prevailing practice for define_machine() in powerpc is to use the platform name when the platform has only one define_machine() statement, but maple uses "maple_md". This caused me some head-scratching when writing some new code that uses machine_is(maple). Use "maple" instead of "maple_md". There should not be any behavioral change -- fixup_maple_ide() calls machine_is(maple) but the body of the function is ifdef'd out. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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d9b2b2a2 |
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13-Feb-2008 |
David S. Miller <davem@davemloft.net> |
[LIB]: Make PowerPC LMB code generic so sparc64 can use it too. Signed-off-by: David S. Miller <davem@davemloft.net>
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0173d422 |
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07-Jan-2008 |
Jon Loeliger <jdl@freescale.com> |
[POWERPC] Use <linux/of_{platform, device}.h> and not <asm/...> variants. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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1977f032 |
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19-Oct-2007 |
Jiri Slaby <jirislaby@kernel.org> |
remove asm/bitops.h includes remove asm/bitops.h includes including asm/bitops directly may cause compile errors. don't include it and include linux/bitops instead. next patch will deny including asm header directly. Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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55b61fec |
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03-May-2007 |
Stephen Rothwell <sfr@canb.auug.org.au> |
[POWERPC] Rename device_is_compatible to of_device_is_compatible for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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6cfef5b2 |
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23-Apr-2007 |
Michael Ellerman <michael@ellerman.id.au> |
[POWERPC] Rename MPIC_BROKEN_U3 to MPIC_U3_HT_IRQS Rename MPIC_BROKEN_U3 to something a little more descriptive. Its effect is to enable support for HT irqs behind the PCI-X/HT bridge on U3/U4 (aka. CPC9x5) parts. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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e2eb6392 |
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03-Apr-2007 |
Stephen Rothwell <sfr@canb.auug.org.au> |
[POWERPC] Rename get_property to of_get_property: arch/powerpc Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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a8bda5dd |
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02-Apr-2007 |
Stephen Rothwell <sfr@canb.auug.org.au> |
[POWERPC] Rename prom_n_addr_cells to of_n_addr_cells This is more consistent and gets us closer to the Sparc code. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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8545cd20 |
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22-Mar-2007 |
Olaf Hering <olaf@aepfle.de> |
[POWERPC] Remove unused inclusion of linux/ide.h Remove unneeded inclusion of linux/ide.h It does not compile with CONFIG_BLOCK=n. Remove asm/ide.h from ksyms file, it gets included earlier via linux/ide.h. Compile tested with all defconfig files. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
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4297c986 |
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05-Feb-2007 |
Nathan Lynch <ntl@pobox.com> |
[POWERPC] Maple: use mmio nvram Some systems supported by the maple platform (e.g. JS2x blades running SLOF) are able to use the mmio_nvram backend for reading and writing nvram. This is an improvement over the current situation -- no nvram access from userspace at all. Select MMIO_NVRAM for the maple platform. Initialize the mmio_nvram backend from maple setup code. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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5e264a52 |
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02-Jan-2007 |
Nathan Lynch <ntl@pobox.com> |
[POWERPC] Fix unbalanced uses of of_node_put The (maple|pasemi)_init_IRQ functions call of_node_put(root) once more than they should, causing the refcount of the root node to underflow, which triggers the WARN_ON in kref_get. Signed-off-by: Nathan Lynch <ntl@pobox.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
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9e254c45 |
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06-Dec-2006 |
Nathan Lynch <ntl@pobox.com> |
[POWERPC] maple: Use RTAS for reboot and halt On maple, use the RTAS "system-reboot" and "power-off" methods if they are available. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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f90bb153 |
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10-Nov-2006 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[POWERPC] Make pci_read_irq_line the default This patch reworks the way IRQs are fixed up on PCI for arch powerpc. It makes pci_read_irq_line() called by default in the PCI code for devices that are probed, and add an optional per-device fixup in ppc_md for platforms that really need to correct what they obtain from pci_read_irq_line(). It also removes ppc_md.irq_bus_setup which was only used by pSeries and should not be needed anymore. I've also removed the pSeries s7a workaround as it can't work with the current interrupt code anyway. I'm trying to get one of these machines working so I can test a proper fix for that problem. I also haven't updated the old-style fixup code from 85xx_cds.c because it's actually buggy :) It assigns pci_dev->irq hard coded numbers which is no good with the new IRQ mapping code. It should at least use irq_create_mapping(NULL, hard_coded_number); and possibly also set_irq_type() to set them as level low. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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eeb2b723 |
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11-Jul-2006 |
Jeremy Kerr <jk@ozlabs.org> |
[POWERPC] maple: Constify & voidify get_property() Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. maple platform changes. Built for maple_defconfig Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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96278d21 |
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07-Jul-2006 |
Segher Boessenkool <segher@kernel.crashing.org> |
[POWERPC] Fix new interrupt code (MPIC detection) As the code comment already says, the Maple device-tree is incorrect here; make the Linux code detect the correct thing, too. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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d319a03b |
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07-Jul-2006 |
Segher Boessenkool <segher@kernel.crashing.org> |
[POWERPC] Fix new interrupt code (MPIC endianness) All U3/U4 based systems are big-endian, not all express it in their device trees. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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0ebfff14 |
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03-Jul-2006 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[POWERPC] Add new interrupt mapping core and change platforms to use it This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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980a6513 |
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03-Jul-2006 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[POWERPC] Fix booting on Momentum "Apache" board (a Maple derivative) This extends the maple device-tree workarounds to work on the Apache board as well, and extends the maple platform probing code to recognize the Apache board. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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6ab3d562 |
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30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h> Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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7d0daae4 |
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23-Jun-2006 |
Michael Ellerman <michael@ellerman.id.au> |
[POWERPC] powerpc: Initialise ppc_md htab pointers earlier Initialise the ppc_md htab callbacks earlier, in the probe routines. This allows us to call htab_finish_init() from htab_initialize(), and makes it private to hash_utils_64.c. Move htab_finish_init() and make_bl() above htab_initialize() to avoid forward declarations. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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4baaf0cf |
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12-Apr-2006 |
Olof Johansson <olof@lixom.net> |
[PATCH] powerpc: Don't print chosen idle loop at every boot No need to write out what idle loop is used on every boot. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
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e8222502 |
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28-Mar-2006 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[PATCH] powerpc: Kill _machine and hard-coded platform numbers This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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a0652fc9 |
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26-Mar-2006 |
Paul Mackerras <paulus@samba.org> |
powerpc: Unify the 32 and 64 bit idle loops This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle loops. It brings over the concept of having a ppc_md.power_save function from 32-bit to ARCH=powerpc, which lets us get rid of native_idle(). With this we will also be able to simplify the idle handling for pSeries and cell. Signed-off-by: Paul Mackerras <paulus@samba.org>
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4c882b01 |
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13-Jan-2006 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[PATCH] powerpc: Fix Maple build The changes to the device node structure broke Maple build. This fixes it. Unfortunately I coudn't test as my Maple board appears to be dead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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13b8a272 |
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09-Jan-2006 |
Paul Mackerras <paulus@samba.org> |
powerpc: Introduce a new config symbol to control 16550 early debug code The previous change by Kumar Gala in this area led to legacy_serial.c and udbg_16550.c being built as modules when CONFIG_SERIAL_8250=m. Fix this by introducing a new symbol, CONFIG_PPC_UDBG_16550, to control whether these files get built, and arrange for it to be selected for those platforms that need it. Signed-off-by: Paul Mackerras <paulus@samba.org>
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1beb6a7d |
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13-Dec-2005 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[PATCH] powerpc: Experimental support for new G5 Macs (#2) This adds some very basic support for the new machines, including the Quad G5 (tested), and other new dual core based machines and iMac G5 iSight (untested). This is still experimental ! There is no thermal control yet, there is no proper handing of MSIs, etc.. but it boots, I have all 4 cores up on my machine. Compared to the previous version of this patch, this one adds DART IOMMU support for the U4 chipset and thus should work fine on setups with more than 2Gb of RAM. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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cc532915 |
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04-Dec-2005 |
Michael Ellerman <michael@ellerman.id.au> |
[PATCH] powerpc: Add arch dependent basic infrastructure for Kdump. Implementing the machine_crash_shutdown which will be called by crash_kexec (called in case of a panic, sysrq etc.). Disable the interrupts, shootdown cpus using debugger IPI and collect regs for all CPUs. elfcorehdr= specifies the location of elf core header stored by the crashed kernel. This command line option will be passed by the kexec-tools to capture kernel. savemaxmem= specifies the actual memory size that the first kernel has and this value will be used for dumping in the capture kernel. This command line option will be passed by the kexec-tools to capture kernel. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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463ce0e1 |
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22-Nov-2005 |
Benjamin Herrenschmidt <benh@kernel.crashing.org> |
[PATCH] powerpc: serial port discovery (#2) This moves the discovery of legacy serial ports to a separate file, makes it common to ppc32 and ppc64, and reworks it to use the new OF address translators to get to the ports early. This new version can also detect some PCI serial cards using legacy chips and will probably match those discovered port with the default console choice. Only ppc64 gets udbg still yet, unifying udbg isn't finished yet. It also adds some speed-probing code to udbg so that the default console can come up at the same speed it was set to by the firmware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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3d1229d6 |
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14-Nov-2005 |
Michael Ellerman <michael@ellerman.id.au> |
[PATCH] powerpc: Merge kexec This patch merges, to some extent, the PPC32 and PPC64 kexec implementations. We adopt the PPC32 approach of having ppc_md callbacks for the kexec functions. The current PPC64 implementation becomes the "default" implementation for PPC64 which platforms can select if they need no special treatment. I've added these default callbacks to pseries/maple/cell/powermac, this means iSeries no longer supports kexec - but it never worked anyway. I've renamed PPC32's machine_kexec_simple to default_machine_kexec, inline with PPC64. Judging by the comments it might be better named machine_kexec_non_of, or something, but at the moment it's the only implementation for PPC32 so it's the "default". Kexec requires machine_shutdown(), which is in machine_kexec.c on PPC32, but we already have in setup-common.c on powerpc. All this does is call ppc_md.nvram_sync, which only powermac implements, so instead make machine_shutdown a ppc_md member and have it call core99_nvram_sync directly on powermac. I've also stuck relocate_kernel.S into misc_32.S for powerpc. Built for ARCH=ppc, and 32 & 64 bit ARCH=powerpc, with KEXEC=y/n. Booted on P5 LPAR and successfully kexec'ed. Should apply on top of 493f25ef4087395891c99fcfe2c72e62e293e89f. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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0cb7b2af |
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29-Oct-2005 |
Paul Mackerras <paulus@samba.org> |
powerpc: Merge maple support code to arch/powerpc/platforms/maple Signed-off-by: Paul Mackerras <paulus@samba.org>
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