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* vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds2018-02-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge tag 'char-misc-4.16-rc1' of ↵Linus Torvalds2018-02-0110-0/+3505
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big pull request for char/misc drivers for 4.16-rc1. There's a lot of stuff in here. Three new driver subsystems were added for various types of hardware busses: - siox - slimbus - soundwire as well as a new vboxguest subsystem for the VirtualBox hypervisor drivers. There's also big updates from the FPGA subsystem, lots of Android binder fixes, the usual handful of hyper-v updates, and lots of other smaller driver updates. All of these have been in linux-next for a long time, with no reported issues" * tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (155 commits) char: lp: use true or false for boolean values android: binder: use VM_ALLOC to get vm area android: binder: Use true and false for boolean values lkdtm: fix handle_irq_event symbol for INT_HW_IRQ_EN EISA: Delete error message for a failed memory allocation in eisa_probe() EISA: Whitespace cleanup misc: remove AVR32 dependencies virt: vbox: Add error mapping for VERR_INVALID_NAME and VERR_NO_MORE_FILES soundwire: Fix a signedness bug uio_hv_generic: fix new type mismatch warnings uio_hv_generic: fix type mismatch warnings auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE uio_hv_generic: add rescind support uio_hv_generic: check that host supports monitor page uio_hv_generic: create send and receive buffers uio: document uio_hv_generic regions doc: fix documentation about uio_hv_generic vmbus: add monitor_id and subchannel_id to sysfs per channel vmbus: fix ABI documentation uio_hv_generic: use ISR callback method ...
| * virt: vbox: Add error mapping for VERR_INVALID_NAME and VERR_NO_MORE_FILESHans de Goede2018-01-221-0/+2
| | | | | | | | | | | | | | | | Add error mapping for VERR_INVALID_NAME and VERR_NO_MORE_FILES vbox status codes, these are both used by the vboxsf (shared folder) code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * virt: vbox: use %pap format for printing resource_size_tArnd Bergmann2017-12-211-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | resource_size_t may be larger than pointers depending on configuration, so we can run into this build warning: drivers/virt/vboxguest/vboxguest_linux.c: In function 'vbg_pci_probe': drivers/virt/vboxguest/vboxguest_linux.c:295:4: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] drivers/virt/vboxguest/vboxguest_linux.c:367:4: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] This uses the special %pap to print the address by reference. Fixes: 0ba002bc4393 ("virt: Add vboxguest driver for Virtual Box Guest integration") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * virt: Add vboxguest driver for Virtual Box Guest integrationHans de Goede2017-12-188-0/+2253
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds a driver for the Virtual Box Guest PCI device used in Virtual Box virtual machines. Enabling this driver will add support for Virtual Box Guest integration features such as copy-and-paste, seamless mode and OpenGL pass-through. This driver also offers vboxguest IPC functionality which is needed for the vboxfs driver which offers folder sharing support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * virt: Add vboxguest VMMDEV communication codeHans de Goede2017-12-182-0/+1250
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commits adds a header describing the hardware interface for the Virtual Box Guest PCI device used in Virtual Box virtual machines and utility functions for talking to the Virtual Box hypervisor over this interface. These utility functions will used both by the vboxguest driver for the PCI device which offers the /dev/vboxguest ioctl API and by the vboxfs driver which offers folder sharing support. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | the rest of drivers/*: annotate ->poll() instancesAl Viro2017-11-281-2/+2
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fsl_hypervisor: switch to get_user_pages_fast()Al Viro2017-09-221-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* virt: Convert to using %pOF instead of full_nameRob Herring2017-08-291-6/+6
| | | | | | | | Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org>
* drivers/virt/fsl_hypervisor.c: use get_user_pages_unlocked()Lorenzo Stoakes2017-05-081-5/+2
| | | | | | | | | | | | | | | | Moving from get_user_pages() to get_user_pages_unlocked() simplifies the code and takes advantage of VM_FAULT_RETRY functionality when faulting in pages. Link: http://lkml.kernel.org/r/20161101194332.23961-1-lstoakes@gmail.com Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Mihai Caraman <mihai.caraman@freescale.com> Cc: Greg KH <gregkh@linuxfoundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: replace get_user_pages() write/force parameters with gup_flagsLorenzo Stoakes2016-10-191-2/+2
| | | | | | | | | | | | | | This removes the 'write' and 'force' from get_user_pages() and replaces them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers as use of this flag can result in surprising behaviour (and hence bugs) within the mm subsystem. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm/gup: Switch all callers of get_user_pages() to not pass tsk/mmDave Hansen2016-02-161-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We will soon modify the vanilla get_user_pages() so it can no longer be used on mm/tasks other than 'current/current->mm', which is by far the most common way it is called. For now, we allow the old-style calls, but warn when they are used. (implemented in previous patch) This patch switches all callers of: get_user_pages() get_user_pages_unlocked() get_user_pages_locked() to stop passing tsk/mm so they will no longer see the warnings. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: jack@suse.cz Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20160212210156.113E9407@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
* drivers: clean-up prom.h implicit includesRob Herring2013-10-091-0/+1
| | | | | | | | Powerpc is a mess of implicit includes by prom.h. Add the necessary explicit includes to drivers in preparation of prom.h cleanup. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org>
* Merge branch 'next' of ↵Linus Torvalds2012-12-181-3/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc update from Benjamin Herrenschmidt: "The main highlight is probably some base POWER8 support. There's more to come such as transactional memory support but that will wait for the next one. Overall it's pretty quiet, or rather I've been pretty poor at picking things up from patchwork and reviewing them this time around and Kumar no better on the FSL side it seems..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (73 commits) powerpc+of: Rename and fix OF reconfig notifier error inject module powerpc: mpc5200: Add a3m071 board support powerpc/512x: don't compile any platform DIU code if the DIU is not enabled powerpc/mpc52xx: use module_platform_driver macro powerpc+of: Export of_reconfig_notifier_[register,unregister] powerpc/dma/raidengine: add raidengine device powerpc/iommu/fsl: Add PAMU bypass enable register to ccsr_guts struct powerpc/mpc85xx: Change spin table to cached memory powerpc/fsl-pci: Add PCI controller ATMU PM support powerpc/86xx: fsl_pcibios_fixup_bus requires CONFIG_PCI drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS] powerpc/85xx: p1022ds: Use NULL instead of 0 for pointers powerpc: Disable relocation on exceptions when kexecing powerpc: Enable relocation on during exceptions at boot powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function powerpc: Add wrappers to enable/disable relocation on exceptions powerpc: Add set_mode hcall powerpc: Setup relocation on exceptions for bare metal systems powerpc: Move initial mfspr LPCR out of __init_LPCR powerpc: Add relocation on exception vector handlers ...
| * drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS]Timur Tabi2012-11-251-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MSR[GS] bit indicates whether the kernel is running in processor guest state mode, but such a check is unnecessary. The driver already checks for the /hypervisor node and the fsl,hv-version property, so it already knows that it's running under the Freescale hypervisor. There is nothing in the driver that inherently requires guest state, anyway. This fixes a break that can occur in some randconfig builds. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | PPC: select EPAPR_PARAVIRT for all users of epapr hcallsStuart Yoder2012-10-051-0/+1
|/ | | | | Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
* drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-managerMihai Caraman2011-10-141-0/+1
| | | | | | | | | Add ioctl to Freescale hypervisor management driver for 32-bit user-space applications running on 64-bit guests. Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.cTimur Tabi2011-07-221-0/+1
| | | | | | | | | fsl_hypervisor.c calls request_irq() but does not include linux/interrupt.h. Normally, the driver will compile without error, but it can fail on some configurations. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* drivers/virt: introduce Freescale hypervisor management driverTimur Tabi2011-07-083-0/+974
Add the drivers/virt directory, which houses drivers that support virtualization environments, and add the Freescale hypervisor management driver. The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. A kernel interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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