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2016-01-13Merge branch 'work.misc' of ↵Linus Torvalds1-26/+7
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs updates from Al Viro: "All kinds of stuff. That probably should've been 5 or 6 separate branches, but by the time I'd realized how large and mixed that bag had become it had been too close to -final to play with rebasing. Some fs/namei.c cleanups there, memdup_user_nul() introduction and switching open-coded instances, burying long-dead code, whack-a-mole of various kinds, several new helpers for ->llseek(), assorted cleanups and fixes from various people, etc. One piece probably deserves special mention - Neil's lookup_one_len_unlocked(). Similar to lookup_one_len(), but gets called without ->i_mutex and tries to avoid ever taking it. That, of course, means that it's not useful for any directory modifications, but things like getting inode attributes in nfds readdirplus are fine with that. I really should've asked for moratorium on lookup-related changes this cycle, but since I hadn't done that early enough... I *am* asking for that for the coming cycle, though - I'm going to try and get conversion of i_mutex to rwsem with ->lookup() done under lock taken shared. There will be a patch closer to the end of the window, along the lines of the one Linus had posted last May - mechanical conversion of ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/ inode_is_locked()/inode_lock_nested(). To quote Linus back then: ----- | This is an automated patch using | | sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/' | sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/' | sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[ ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/' | sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/' | sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/' | | with a very few manual fixups ----- I'm going to send that once the ->i_mutex-affecting stuff in -next gets mostly merged (or when Linus says he's about to stop taking merges)" * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) nfsd: don't hold i_mutex over userspace upcalls fs:affs:Replace time_t with time64_t fs/9p: use fscache mutex rather than spinlock proc: add a reschedule point in proc_readfd_common() logfs: constify logfs_block_ops structures fcntl: allow to set O_DIRECT flag on pipe fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE fs: xattr: Use kvfree() [s390] page_to_phys() always returns a multiple of PAGE_SIZE nbd: use ->compat_ioctl() fs: use block_device name vsprintf helper lib/vsprintf: add %*pg format specifier fs: use gendisk->disk_name where possible poll: plug an unused argument to do_poll amdkfd: don't open-code memdup_user() cdrom: don't open-code memdup_user() rsxx: don't open-code memdup_user() mtip32xx: don't open-code memdup_user() [um] mconsole: don't open-code memdup_user_nul() [um] hostaudio: don't open-code memdup_user() ...
2016-01-12virtio: make find_vqs() checkpatch.pl-friendlyStefan Hajnoczi1-1/+1
checkpatch.pl wants arrays of strings declared as follows: static const char * const names[] = { "vq-1", "vq-2", "vq-3" }; Currently the find_vqs() function takes a const char *names[] argument so passing checkpatch.pl's const char * const names[] results in a compiler error due to losing the second const. This patch adjusts the find_vqs() prototype and updates all virtio transports. This makes it possible for virtio_balloon.c, virtio_input.c, virtgpu_kms.c, and virtio_rpmsg_bus.c to use the checkpatch.pl-friendly type. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
2016-01-12drm/exynos: fix kernel panic issue at drm releasingInki Dae3-0/+35
This patch fixes a kernel panic issue which happened when drm driver is closed while modetest. This issue could be reproduced easily by launching modetest with page flip repeatedly. The reason is that invalid drm_file object could be accessed by send_vblank_event function when finishing page flip if the drm_file object was removed by drm_release and there was a pended page flip event which was already committed to hardware. So this patch makes the pended page flip event to be cancelled by preclose callback which is called at front of drm_release function. Changelog v2: - free vblank event objects belonging to the request process, increment event space and decrease pending_update when cancelling the event Signed-off-by: Inki Dae <inki.dae@samsung.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Acked-by: Daniel Vetter <daniel@ffwll.ch>
2016-01-12drm/exynos: crtc: do not wait for the scanout completionInki Dae3-27/+0
This patch removes exynos_drm_crtc_complete_scanout function call which makes sure for overlay data to be updated to real hardware when drm driver is released. With atomic modeset support, it doesn't need the funtion anymore because atomic modeset interface makes sure that. Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: properly update all planes on the same vblank eventMarek Szyprowski1-9/+25
This patch also moves mixer_vsync_set_update() to newly introduced mixer_atomic_begin/flush callbacks. This ensures that all mixer planes will be updated on the same vsync event. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: crtc: rework atomic_{begin,flush}Marek Szyprowski5-40/+32
Some CRTC drivers (like Exynos DRM Mixer) can handle blocking register updates only on per-device level, not per-plane level. This patch changes exynos_crts atomic_begin/atomic_flush callbacks to handle the entire crtc, instead of given planes, so driver can handle both cases on their own. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: unify a check for video-processor windowMarek Szyprowski1-2/+2
Always use macro instead of hard-coded '2' value in conditions related to video processor window. Additional checks are not needed, because video layer is registered only when video processor is available. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: also allow ARGB1555 and ARGB4444Tobias Jakobi1-0/+6
Allow the remaining alpha formats now that blending is properly setup. Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: refactor layer setupMarek Szyprowski2-0/+44
Properly configure blending properties of given hardware layer based on the selected pixel format. Currently only per-pixel-based alpha is possible when respective pixel format has been selected. Configuration of global, per-plane alpha value, color key and background color will be added later. This patch is heavily inspired by earlier work done by Tobias Jakobi <tjakobi@math.uni-bielefeld.de>. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: remove all static blending setupTobias Jakobi1-23/+0
Previously blending setup was static and most of it was done in mixer_win_reset(). Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: mixer: set window priority based on zposMarek Szyprowski2-18/+24
'zpos' plane property is configurable, so adjust hardware layers priority based on the zpos value. 'zpos' value shifted by one can be used directly as hw priority value and stored to the registers, because mixer accepts priority values from 1 to 15 (0 means that layer is disabled). This patch also changes the default layer priority to match already exposed initial zpos values. The initial configuration is now: [top] video > gfx layer1 > gfx layer0 [bottom]. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: make zpos property configurableMarek Szyprowski2-6/+49
This patch adds all infrastructure to make zpos plane property configurable from userspace. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/exynos: rename zpos to indexMarek Szyprowski8-28/+28
This patch renames zpos entry to index, because in most places it is used as index for selecting hardware layer/window instead of configurable layer position. This will later enable to make the zpos property configurable. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-01-12drm/amdgpu/powerplay: include asm/div64.h for do_div()Stephen Rothwell2-2/+2
Fixes: 1e4854e96c35 ("drm/amdgpu/powerplay: implement thermal control for tonga.") Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-11drm/amdgpu: add irq domain supportAlex Deucher6-8/+136
Hardware blocks on the GPU like ACP generate interrupts in the GPU interrupt controller, but are driven by a separate driver. Add an irq domain to the GPU driver so that blocks like ACP can register a Linux interrupt. Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-11drm/amdgpu/cgs: add an interface to access PCI resourcesAlex Deucher2-0/+70
This provides an interface to get access to the base address of PCI resources (MMIO, DOORBELL, etc.). Only MMIO and DOORBELL are implemented right now. This is necessary to properly utilize shared drivers on platform devices. IP modules can use this interface to get the base address of the resource and add any additional offset and set the size when setting up the platform driver(s). Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-11Merge branch 'linux-4.5' of git://github.com/skeggsb/linux into drm-nextDave Airlie141-3704/+4879
- gk20a instmem fixes / improvements - more gm10x vs gm20x differences deal with - better support for high-frequency hdmi modes - pstate control interfaces moved to debugfs - support for pcie link speed changes - misc other fixes across the board * 'linux-4.5' of git://github.com/skeggsb/linux: (50 commits) drm/nouveau/pmu: prevent falcon from acking interrupts routed to the host drm/nouveau/perf: change pcie speed on pstate change drm/nouveau/perf: add fields for pci speed and width and use it for the pstates drm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer cards drm/nouveau/pci: implement pcie speed change for kepler+ drm/nouveau/pci: implement pcie speed change for Fermi drm/nouveau/pci: implement pcie speed change for tesla drm/nouveau/pci: implement generic code for pcie speed change drm/nouveau/pci: add gk104 variant drm/nouveau/pci: add gf106 variant drm/nouveau/kms: take mode_config mutex in connector hotplug path drm/nouveau/nouveau/perfmon: add interface files for current core voltage drm/nouveau/sysfs: remove pstate interface drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfs drm/nouveau/debugfs: we need a ctrl object for debugfs drm/nouveau/debugfs: rename functions to indicate they are used inside drm drm/nouveau/debugfs: add infrastructure to add files with other fops than only read drm/nouveau/fifo/gf100: remove references to "daemon" drm/nouveau/fb/nv50: remove references to "daemon" drm/nouveau/clk: remove references to "daemon" ...
2016-01-11drm/nouveau/pmu: prevent falcon from acking interrupts routed to the hostBen Skeggs5-2266/+2252
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/perf: change pcie speed on pstate changeKarol Herbst1-0/+3
v2: remove error and only set link for pcie devices v6: remove check for pcie device Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/perf: add fields for pci speed and width and use it for the pstatesKarol Herbst2-0/+5
Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/bios/perf: parse the pci speed from the bios for tesla and newer ↵Karol Herbst2-0/+18
cards Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/pci: implement pcie speed change for kepler+Karol Herbst1-0/+189
v2: rename functions v3: remove pcie2 accessors v6: fix alignement and line width, also remove useless code Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/pci: implement pcie speed change for FermiKarol Herbst3-0/+74
v5: don't set kepler func pointers v6: fix alignment and line length
2016-01-11drm/nouveau/pci: implement pcie speed change for teslaKarol Herbst3-0/+120
v5: don't set fermi or kepler func pointers v6: fix alignment
2016-01-11drm/nouveau/pci: implement generic code for pcie speed changeKarol Herbst5-0/+210
v2: rename and group functions v4: change copyright information move printing of pcie speeds into oneinit, rename all pcie functions to nvkm_pcie_* don't try to raise the pcie version when no higher one is supported v5: revert Copyright changes and rename nvkm_pcie_raise_version to nvkm_pcie_set_version v6: remove some useless pci_is_pcie checks and rework messages Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/pci: add gk104 variantKarol Herbst4-10/+51
v2: change email used in header v4: change Copyright information v5: revert Copyright changes Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/pci: add gf106 variantKarol Herbst4-5/+46
v2: change email used in header v4: change Copyright information v5: revert Copyright changes Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
2016-01-11drm/nouveau/kms: take mode_config mutex in connector hotplug pathBen Skeggs1-0/+3
fdo#93634 Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2016-01-11drm/nouveau/nouveau/perfmon: add interface files for current core voltageKarol Herbst2-0/+51
Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/sysfs: remove pstate interfaceKarol Herbst5-225/+0
Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/debugfs: add copy of sysfs pstate interface ported to debugfsKarol Herbst1-2/+138
Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/debugfs: we need a ctrl object for debugfsKarol Herbst4-0/+57
Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/debugfs: rename functions to indicate they are used inside drmKarol Herbst3-8/+9
We will need our own debugfs_init and cleanup functions, because nouveau_drm isn't ready while the DRM ones are called by DRM. Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/debugfs: add infrastructure to add files with other fops than ↵Karol Herbst1-3/+53
only read v2: use the same object for private data as with the drm debugfs functions Signed-off-by: Karol Herbst <nouveau@karolherbst.de> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/fifo/gf100: remove references to "daemon"Ben Skeggs1-2/+2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/fb/nv50: remove references to "daemon"Ben Skeggs1-1/+1
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/clk: remove references to "daemon"Ben Skeggs4-8/+8
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/gr/gf100: provide a bit more info for various errorsIlia Mirkin1-9/+69
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/bios: parse 8.1 Gbps DP link rateBen Skeggs1-4/+7
From DCB 4.1 spec. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/ltc/gm204: split implementation from gm107Ben Skeggs6-8/+79
Differences from GM10x: - GM20x LTC count detection differs from GM10x - GM20x init doesn't require large page size setting Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/ltc/gm107: use nvkm_mask to set cbc_ctrl1Ben Skeggs1-1/+1
resman and nvgpu both do this, presumably for good reason. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/ibus/gm204: split implementation from gk104Ben Skeggs6-4/+47
GM20x doesn't require the priv ring timeout bumps that GK/GM10x have. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/gr/gf100-: subclass nvkm_object to store channel pointerBen Skeggs1-0/+28
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: modify nvif_unvers/nvif_unpack macros to be more obviousBen Skeggs45-171/+186
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out client interface definitionsBen Skeggs3-13/+13
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out device interface definitionsBen Skeggs6-49/+50
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out ctxdma interface definitionsBen Skeggs12-75/+79
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out perfmon interface definitionsBen Skeggs4-77/+75
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out device control interface definitionsBen Skeggs4-49/+49
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-01-11drm/nouveau/nvif: split out fifo interface definitionsBen Skeggs23-78/+132
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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