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* sparc: drop pte_file()-related helpersKirill A. Shutemov2015-02-103-73/+5
| | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-102-34/+5
| | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* score: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-102-17/+2
| | | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s390: drop pte_file()-related helpersKirill A. Shutemov2015-02-101-25/+4
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* parisc: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-10/+0
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* openrisc: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-102-13/+0
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Jonas Bonn <jonas@southpole.se> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nios2: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-102-10/+1
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ley Foon Tan <lftan@altera.com> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mn10300: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-14/+3
| | | | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increases the number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mips: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-104-56/+0
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* microblaze: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-11/+0
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* metag: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-6/+0
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* m68k: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-104-53/+2
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* m32r: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-102-15/+0
| | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ia64: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-20/+5
| | | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hexagon: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-44/+16
| | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Richard Kuo <rkuo@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* frv: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-22/+5
| | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cris: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-103-10/+0
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* c6x: drop pte_file()Kirill A. Shutemov2015-02-101-5/+0
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* blackfin: drop pte_file()Kirill A. Shutemov2015-02-101-5/+0
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Steven Miao <realmz6@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* avr32: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-25/+0
| | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arm: drop L_PTE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-105-22/+4
| | | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also adjust __SWP_TYPE_SHIFT, effectively increase size of possible swap file to 128G. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arm64: drop PTE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-18/+4
| | | | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. This patch also adjust __SWP_TYPE_SHIFT and increase number of bits availble for swap offset. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arc: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-12/+1
| | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* alpha: drop _PAGE_FILE and pte_file()-related helpersKirill A. Shutemov2015-02-101-7/+0
| | | | | | | | | | | | We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: eliminate unused irq_reg_{readl,writel} accessorsKevin Cernekee2015-02-102-6/+0
| | | | | | | | | | | | | | | Defining these macros way down in arch/sh/.../irq.c doesn't cause kernel/irq/generic-chip.c to use them. As far as I can tell this code has no effect. Fixes: 332fd7c4fef5f3b1 ("genirq: Generic chip: Change irq_reg_{readl,writel} arguments") Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (cpp/asm comparison) Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sh: build superh without CONFIG_EXPERTRob Landley2015-02-101-1/+1
| | | | | | | | | | What sh4 actually wants is HAVE_PATA_PLATFORM, so select that instead. Signed-off-by: Rob Landley <rob@landley.net> Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hugetlb, x86: register 1G page size if we can allocate them at runtimeKirill A. Shutemov2015-02-101-0/+11
| | | | | | | | | | | | | | | | | | | After commit 944d9fec8d7a ("hugetlb: add support for gigantic page allocation at runtime") we can allocate 1G pages at runtime if CMA is enabled. Let's register 1G pages into hugetlb even if the user hasn't requested them explicitly at boot time with hugepagesz=1G. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'x86-ras-for-linus' of ↵Linus Torvalds2015-02-102-10/+41
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 RAS update from Ingo Molnar: "The changes in this cycle were: - allow mmcfg access to APEI error injection handlers - improve MCE error messages - smaller cleanups" * 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, mce: Fix sparse errors x86, mce: Improve timeout error messages ACPI, EINJ: Enhance error injection tolerance level
| * Merge tag 'please-pull-einj-mmcfg' of ↵Ingo Molnar2015-01-151-0/+28
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras Pull RAS update from Tony Luck: "When checking addresses in APEI action entries for validity, allow access to the mmcfg space - some error injection functions need to do this." Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * ACPI, EINJ: Enhance error injection tolerance levelChen, Gong2014-12-151-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some BIOSes utilize PCI MMCFG space read/write opertion to trigger specific errors. EINJ will report errors as below when hitting such cases: APEI: Can not request [mem 0x83f990a0-0x83f990a3] for APEI EINJ Trigger registers It is because on x86 platform ACPI based PCI MMCFG logic has reserved all MMCFG spaces so that EINJ can't reserve it again. We already trust the ACPI/APEI code when using the EINJ interface so it is not a big leap to also trust it to access the right MMCFG addresses. Skip address checking to allow the access. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | Merge tag 'ras_for_3.20' of ↵Ingo Molnar2015-01-151-11/+14
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into x86/ras Pull RAS updates from Borislav Petkov: "Nothing special this time, just an error messages improvement from Andy and a cleanup from me." Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * | x86, mce: Fix sparse errorsBorislav Petkov2014-12-221-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Make stuff used in mce.c only, static. Signed-off-by: Borislav Petkov <bp@suse.de>
| | * | x86, mce: Improve timeout error messagesAndy Lutomirski2014-12-221-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are four different possible types of timeouts. Distinguish them in the logs to help debug them. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/0fa6d2653a54a01c48b43a3583caf950ea99606e.1419178397.git.luto@amacapital.net Signed-off-by: Borislav Petkov <bp@suse.de>
* | | | Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds2015-02-102-23/+11
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm cleanups from Ingo Molnar: "Two cleanups: simplify parse_setup_data() and sanitize_e820_map() usage" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, e820: Clean up sanitize_e820_map() users x86, setup: Let early_memremap() handle page alignment
| * | | | x86, e820: Clean up sanitize_e820_map() usersWANG Chao2015-01-231-18/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The argument 3 of sanitize_e820_map() will only be updated upon a successful sanitization. Some of the callers have extra conditionals for the same purpose. Clean them up. default_machine_specific_memory_setup() must keep the extra conditional because boot_params.e820_entries is an u8 and not an u32, so the direct update would overwrite other fields in boot_params. [ tglx: Massaged changelog ] Signed-off-by: WANG Chao <chaowang@redhat.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Lee Chun-Yi <joeyli.kernel@gmail.com> Cc: Xishi Qiu <qiuxishi@huawei.com> Link: http://lkml.kernel.org/r/1420601859-18439-1-git-send-email-chaowang@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | x86, setup: Let early_memremap() handle page alignmentWANG Chao2015-01-231-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | early_memremap() takes care of page alignment and map size, so we can just remap the required data size and get rid of the adjustments in the setup code. [tglx: Massaged changelog ] Signed-off-by: WANG Chao <chaowang@redhat.com> Cc: Matt Fleming <matt.fleming@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Bryan O'Donoghue <pure.logic@nexus-software.ie> Link: http://lkml.kernel.org/r/1420628150-16872-1-git-send-email-chaowang@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | | | Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds2015-02-103-25/+86
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SoC updates from Ingo Molnar: "Various Intel Atom SoC updates (mostly to enhance debuggability), plus an apb_timer cleanup" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: pmc_atom: Expose contents of PSS x86: pmc_atom: Clean up init function x86: pmc-atom: Remove unused macro x86: pmc_atom: don%27t check for NULL twice x86: pmc-atom: Assign debugfs node as soon as possible x86/platform: Remove unused function from apb_timer.c
| * | | | | x86: pmc_atom: Expose contents of PSSAndy Shevchenko2015-01-202-3/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PSS register reflects the power state of each island on SoC. It would be useful to know which of the islands is on or off at the momemnt. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Aubrey Li <aubrey.li@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com> Link: http://lkml.kernel.org/r/1421253575-22509-6-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86: pmc_atom: Clean up init functionAndy Shevchenko2015-01-201-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to use err variable. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Aubrey Li <aubrey.li@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com> Link: http://lkml.kernel.org/r/1421253575-22509-5-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86: pmc-atom: Remove unused macroAndy Shevchenko2015-01-201-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DRIVER_NAME seems unused. This patch just removes it. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Aubrey Li <aubrey.li@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com> Link: http://lkml.kernel.org/r/1421253575-22509-4-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86: pmc_atom: don%27t check for NULL twiceAndy Shevchenko2015-01-201-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | debugfs_remove_recursive() is NULL-aware, thus, we may safely remove the check here. There is no need to assing NULL to variable since it will be not used anywhere. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Aubrey Li <aubrey.li@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com> Link: http://lkml.kernel.org/r/1421253575-22509-3-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86: pmc-atom: Assign debugfs node as soon as possibleAndy Shevchenko2015-01-201-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pmc_dbgfs_unregister() will be called when pmc->dbgfs_dir is unconditionally NULL on error path in pmc_dbgfs_register(). To prevent this we move the assignment to where is should be. Fixes: f855911c1f48 (x86/pmc_atom: Expose PMC device state and platform sleep state) Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Aubrey Li <aubrey.li@linux.intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Kumar P. Mahesh <mahesh.kumar.p@intel.com> Link: http://lkml.kernel.org/r/1421253575-22509-2-git-send-email-andriy.shevchenko@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86/platform: Remove unused function from apb_timer.cRickard Strandqvist2014-12-231-8/+0
| | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the function is_apbt_capable() that is not used anywhere. This was partially found by using a static code analysis program called 'cppcheck'. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Reviewed-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Christoph Lameter <cl@linux.com> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/1419166698-2470-1-git-send-email-rickard_strandqvist@spectrumdigital.se Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | | | Merge branch 'x86-fpu-for-linus' of ↵Linus Torvalds2015-02-104-25/+42
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fpu updates from Ingo Molnar: "Initial round of kernel_fpu_begin/end cleanups from Oleg Nesterov, plus a cleanup from Borislav Petkov" * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, fpu: Fix math_state_restore() race with kernel_fpu_begin() x86, fpu: Don't abuse has_fpu in __kernel_fpu_begin/end() x86, fpu: Introduce per-cpu in_kernel_fpu state x86/fpu: Use a symbolic name for asm operand
| * | | | | x86, fpu: Fix math_state_restore() race with kernel_fpu_begin()Oleg Nesterov2015-01-203-7/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | math_state_restore() can race with kernel_fpu_begin() if irq comes right after __thread_fpu_begin(), __save_init_fpu() will overwrite fpu->state we are going to restore. Add 2 simple helpers, kernel_fpu_disable() and kernel_fpu_enable() which simply set/clear in_kernel_fpu, and change math_state_restore() to exclude kernel_fpu_begin() in between. Alternatively we could use local_irq_save/restore, but probably these new helpers can have more users. Perhaps they should disable/enable preemption themselves, in this case we can remove preempt_disable() in __restore_xstate_sig(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: matt.fleming@intel.com Cc: bp@suse.de Cc: pbonzini@redhat.com Cc: luto@amacapital.net Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Suresh Siddha <sbsiddha@gmail.com> Link: http://lkml.kernel.org/r/20150115192028.GD27332@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86, fpu: Don't abuse has_fpu in __kernel_fpu_begin/end()Oleg Nesterov2015-01-201-13/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have in_kernel_fpu we can remove __thread_clear_has_fpu() in __kernel_fpu_begin(). And this allows to replace the asymmetrical and nontrivial use_eager_fpu + tsk_used_math check in kernel_fpu_end() with the same __thread_has_fpu() check. The logic becomes really simple; if _begin() does save() then _end() needs restore(), this is controlled by __thread_has_fpu(). Otherwise they do clts/stts unless use_eager_fpu(). Not only this makes begin/end symmetrical and imo more understandable, potentially this allows to change irq_fpu_usable() to avoid all other checks except "in_kernel_fpu". Also, with this patch __kernel_fpu_end() does restore_fpu_checking() and WARNs if it fails instead of math_state_restore(). I think this looks better because we no longer need __thread_fpu_begin(), and it would be better to report the failure in this case. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: matt.fleming@intel.com Cc: bp@suse.de Cc: pbonzini@redhat.com Cc: luto@amacapital.net Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Suresh Siddha <sbsiddha@gmail.com> Link: http://lkml.kernel.org/r/20150115192005.GC27332@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86, fpu: Introduce per-cpu in_kernel_fpu stateOleg Nesterov2015-01-202-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | interrupted_kernel_fpu_idle() tries to detect if kernel_fpu_begin() is safe or not. In particular it should obviously deny the nested kernel_fpu_begin() and this logic looks very confusing. If use_eager_fpu() == T we rely on a) __thread_has_fpu() check in interrupted_kernel_fpu_idle(), and b) on the fact that _begin() does __thread_clear_has_fpu(). Otherwise we demand that the interrupted task has no FPU if it is in kernel mode, this works because __kernel_fpu_begin() does clts() and interrupted_kernel_fpu_idle() checks X86_CR0_TS. Add the per-cpu "bool in_kernel_fpu" variable, and change this code to check/set/clear it. This allows to do more cleanups and fixes, see the next changes. The patch also moves WARN_ON_ONCE() under preempt_disable() just to make this_cpu_read() look better, this is not really needed. And in fact I think we should move it into __kernel_fpu_begin(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: matt.fleming@intel.com Cc: bp@suse.de Cc: pbonzini@redhat.com Cc: luto@amacapital.net Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Suresh Siddha <sbsiddha@gmail.com> Link: http://lkml.kernel.org/r/20150115191943.GB27332@redhat.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | | | x86/fpu: Use a symbolic name for asm operandBorislav Petkov2014-12-231-4/+6
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix up the else-case in fpu_fxsave() which seems like it has been overlooked. Correct comment style in restore_fpu_checking() while at it. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/1419170543-11393-1-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | | | Merge branch 'x86-efi-for-linus' of ↵Linus Torvalds2015-02-101-7/+7
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull EFI updates from Ingo Molnar: "Main changes: - Move efivarfs from the misc filesystem section to pseudo filesystem - Expose firmware platform size in sysfs - Improve robustness of get_memory_map() by removing assumptions on the size of efi_memory_desc_t. - various cleanups and fixes The biggest risk is the get_memory_map() change, which changes the way that both the arm64 and x86 EFI boot stub build the early memory map. There are no known regressions with it at the moment, BYMMV" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: Don't look for chosen@0 node on DT platforms firmware: efi: Remove unneeded guid unparse efi/libstub: Call get_memory_map() to obtain map and desc sizes efi: Small leak on error in runtime map code efi: rtc-efi: Mark UIE as unsupported arm64/efi: efistub: Apply __init annotation efi: Expose underlying UEFI firmware platform size to userland efi: Rename efi_guid_unparse to efi_guid_to_str efi: Update the URLs for efibootmgr fs: Make efivarfs a pseudo filesystem, built by default with EFI
| * \ \ \ \ Merge tag 'efi-next' of ↵Ingo Molnar2015-01-291-7/+7
| |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/efi Pull EFI updates from Matt Fleming: " - Move efivarfs from the misc filesystem section to pseudo filesystem, since that's a more logical and accurate place - Leif Lindholm - Update efibootmgr URL in Kconfig help - Peter Jones - Improve accuracy of EFI guid function names - Borislav Petkov - Expose firmware platform size in sysfs for the benefit of EFI boot loader installers and other utilities - Steve McIntyre - Cleanup __init annotations for arm64/efi code - Ard Biesheuvel - Mark the UIE as unsupported for rtc-efi - Ard Biesheuvel - Fix memory leak in error code path of runtime map code - Dan Carpenter - Improve robustness of get_memory_map() by removing assumptions on the size of efi_memory_desc_t (which could change in future spec versions) and querying the firmware instead of guessing about the memmap size - Ard Biesheuvel - Remove superfluous guid unparse calls - Ivan Khoronzhuk - Delete unnecessary chosen@0 DT node FDT code since was duplicated from code in drivers/of and is entirely unnecessary - Leif Lindholm There's nothing super scary, mainly cleanups, and a merge from Ricardo who kindly picked up some patches from the linux-efi mailing list while I was out on annual leave in December. Perhaps the biggest risk is the get_memory_map() change from Ard, which changes the way that both the arm64 and x86 EFI boot stub build the early memory map. It would be good to have it bake in linux-next for a while. " Signed-off-by: Ingo Molnar <mingo@kernel.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 08:31:45 +0100