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2014-08-10drm/nouveau: port to nvif client/device/objectsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: initial pass at moving to struct nvif_deviceBen Skeggs
This is an attempt at isolating some of the changes necessary to port to NVIF in a separate commit. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: kill nouveau_dev() + wrap register macrosBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: fix some usages of the wrong print functionBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/nvif: import library functions for the ioctl/event interfacesBen Skeggs
This is a wrapper around the interfaces defined in an earlier commit, and is also used by various userspace (either by a libdrm backend, or libpciaccess) tools/tests. In the future this will be extended to handle channels, replacing some long-unloved code we currently use, and allow fifo/display/mpeg (hi Ilia ;)) engines to all be exposed in the same way. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/client: add method to retrieve device listBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: remove NV_D0 familyBen Skeggs
The one place where it mattered has been replaced with a class check, which is more appropriate anyway. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/device: add method to retrieve some basic device infoBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: import ioctl/event interfacesBen Skeggs
This forms the basis for the new APIs that will be exposed to userspace, giving it access to: - Object method calls, the immediately useful of which is performance counters and the abiity to manipulate the ZBC tables. - Information on the child classes an object supports, in order to avoid having to try all supported classes until successful. - Notifications, which will be used in the future to inform the client if its channel was killed due to a lockup, etc. This commit imports the interfaces, but are not currently used. The DRM portion of the driver will be ported to speak to the core using these interfaces as much as possible. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: add function to return list of supported childrenBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: rework event interfaceBen Skeggs
This is a lot of prep-work for being able to send event notifications back to userspace. Events now contain data, rather than a "something just happened" signal. Handler data is now embedded into a containing structure, rather than being kmalloc()'d, and can optionally have the notify routine handled in a workqueue. Various races between suspend/unload with display HPD/DP IRQ handlers automagically solved as a result. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: move handle-based object apis to handle.cBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/core: fail creation of zero-argument objects, when arguments are ↵Ben Skeggs
passed Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: store a pointer to vm in nouveau_cliBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: store vblank event handler data in nv_crtcBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nv50/kms: create ctxdma objects for framebuffers as requiredBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nv50/kms: move framebuffer wrangling out of common codeBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: Bump version from 1.1.1 to 1.1.2Mario Kleiner
Linux 3.16 fixed multiple bugs in kms pageflip completion events and timestamping, which were originally introduced in Linux 3.13. These fixes have been backported to all stable kernels since 3.13. However, the userspace nouveau-ddx needs to be aware if it is running on a kernel on which these bugs are fixed, or not. Bump the patchlevel of the drm driver version to signal this, so backporting this patch to stable 3.13+ kernels will give the ddx the required info. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: <stable@vger.kernel.org> #v3.13+ Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nv50-/sw: use nv50_software_context_dtor....Ben Skeggs
You would not believe the troubles this caused me... Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nv50-/fb: use dma_mapping_error() to check dma_map_page() resultBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: Dis/Enable vblank irqs during suspend/resume.Mario Kleiner
Vblank irqs don't get disabled during suspend or driver unload, which causes irq delivery after "suspend" or driver unload, at least until the gpu is powered off. This could race with drm_vblank_cleanup() in the case of nouveau and cause a use-after-free bug if the driver is unloaded. More annoyingly during everyday use, at least on nv50 display engine (likely also others), vblank irqs are off after a resume from suspend, but the drm doesn't know this, so all vblank related functionality is dead after a resume. E.g., all windowed OpenGL clients will hang at swapbuffers time, as well as many fullscreen clients in many cases. This makes suspend/resume useless if one wants to use any OpenGL apps after the resume. In Linux 3.16, drm_vblank_on() was added, complementing the older drm_vblank_off() to solve these problems elegantly, so use those calls in nouveaus suspend/resume code. For kernels 3.8 - 3.15, we need to cherry-pick the drm_vblank_on() patch to support this patch. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Cc: <stable@vger.kernel.org> #v3.16 Cc: <stable@vger.kernel.org> #v3.8+: f275228: drm: Add drm_vblank_on() Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: platform: update moved Tegra headerAlexandre Courbot
Header for tegra_powergate functions has moved to soc/tegra/pmc.h. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/gk20a: reclocking supportAlexandre Courbot
Add support for reclocking on GK20A, using a statically-defined pstates table. The algorithms for calculating the coefficients and setting the clocks are directly taken from the ChromeOS kernel. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/clk: support for non-BIOS pstatesAlexandre Courbot
Make nouveau_clock_create() take new two optional arguments: an array of pstates and its size. When these are specified, nouveau_clock_create() will use the provided pstates instead of probing them using the BIOS. This is useful for platforms which do not provide a BIOS, like Tegra. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/clk: make therm and volt devices optionalAlexandre Courbot
Allow the clock subsystem to operate even if voltage and thermal devices are not set for the device (for people with watercooling! ;)) Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/perfmon: do not forget to destroy the engine contextSamuel Pitoiset
This fixes a crash when we reload Nouveau DRM. Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: map pages using DMA APIAlexandre Courbot
The DMA API is the recommended way to map pages no matter what the underlying bus is. Use the DMA functions for page mapping and remove currently existing wrappers. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/pwr/macros: Stop playing Russian roulette on data memoryRoy Spliet
Signed-off-by: Roy Spliet <rspliet@eclipso.eu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nve4/graph: do not crash if no power device presentAlexandre Courbot
Detect and workaround the absence of a power device so chips that do not feature one (e.g. GK20A) can still use this driver. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/gk20a: add BAR instanceAlexandre Courbot
GK20A's BAR is functionally identical to NVC0's, but do not support being ioremapped write-combined. Create a BAR instance for GK20A that reflect that state. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2014-08-10drm/nouveau/bar: add noncached ioremap propertyAlexandre Courbot
Some BARs (like GK20A's) do not support being ioremapped write-combined. Add a boolean property to the BAR structure and handle that case in the Nouveau BO implementation. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2014-08-10drm/nouveau: support for probing platform devicesAlexandre Courbot
Add a platform driver for Nouveau devices declared using the device tree or platform data. This driver currently supports GK20A on Tegra platforms and is only compiled for these platforms if Nouveau is enabled. Nouveau will probe the chip type itself using the BOOT0 register, so all this driver really needs to do is to make sure the module is powered and its clocks active before calling nouveau_drm_platform_probe(). Heavily based on work done by Thierry Reding. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/kms: restore acceleration before fb_set_suspend() resumesBen Skeggs
This *should* be safe these days. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/kms: take more care when pulling down accelerated fbconBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau: expose pstate selection per-power source in sysfsBen Skeggs
echo ac:id >> pstate # select mode when on mains power echo dc:id >> pstate # select mode when on battery echo id >> pstate # select mode for both Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/clk: allow selection of different power state for ac vs batteryBen Skeggs
v2: - s/init/fini/ typo, reported by Alex Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/clk: schedule pstate changes through a workqueueBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/device: register for acpi eventsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/gk208-/gr: stop touching 0x260 inappropriatelyBen Skeggs
As a side note.. It's a bit hard to figure out how to name this commit.. GK20A is NVEA, which is before NV108 (GK208).. Confusing. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/gk110b/gr: initvals differ from gk110Ben Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/gk104/gr: disable PGOB at init timeBen Skeggs
This removes the previous hack that worked on some boards. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/gk104/pwr: implement PGOB disable methodBen Skeggs
As documented at: ftp://download.nvidia.com/open-gpu-doc/gk104-disable-graphics-power-gating/1/gk104-disable-graphics-power-gating.txt NVIDIA were not able document the steps necessary to detect whether this is required or not at this time. However, they did confirm that this procedure is safe to perform unconditionally on GK104/6. GK107 does not have the power gating feature, and it was recommended that we do not perform these steps there as the effects were not verified. The disable path is from observing the binary driver, and not documented in the link above. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-10drm/nouveau/pwr: tidyBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-08-09Merge branch 'signal-cleanup' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
2014-08-09Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "A number of small fixes: - fix loading of the translation table base registers for LPAE - add two new syscalls to the ARM syscall tables" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: wire up memfd_create syscall ARM: wire up getrandom syscall ARM: 8114/1: LPAE: load upper bits of early TTBR0/TTBR1
2014-08-09Merge tag 'arc-v3.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC changes from Vineet Gupta: "Mostly cleanup/refactoring in core intc, cache flush, IPI send..." * tag 'arc-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: mm, arc: remove obsolete pagefault oom killer comment ARC: help gcc elide icache helper for !SMP ARC: move common ops for line/full cache into helpers ARC: cache boot reporting updates ARC: [intc] mask/unmask can be hidden again ARC: [plat-arcfpga] No need for init_irq hack ARC: [intc] don't mask all IRQ by default ARC: prune extra header includes from smp.c ARC: update some comments ARC: [SMP] unify cpu private IRQ requests (TIMER/IPI)
2014-08-09Merge tag 'please-pull-getrandom' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull ia64 system call update from Tony Luck: "Wire up getrandom system call for ia64" * tag 'please-pull-getrandom' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: [IA64] Wire up getrandom() system call
2014-08-09Merge branch 'i2c/for-3.17' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Highlights: - class based instantiation finally dropped for most embedded drivers bringing boot up performance gains - removed two drivers (one outdated, one a duplicate) - ACPI has now operation region support (thanks to Lan Tianyu) - the i2c-stub driver got overhauled and gained new features to become more useful when writing i2c client drivers (thanks to Guenter Roeck and Jean Delvare) The rest is driver bugfixes, added bindings/ids, cleanups..." * 'i2c/for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (43 commits) i2c: mpc: delete unneeded test before of_node_put i2c: rk3x: fix interrupt handling issue i2c: imx: Fix format warning for dev_dbg i2c: qup: disable clks and return instead of just returning error i2c: exynos5: always enable HSI2C i2c: designware: add new bindings i2c: gpio: Drop dead code in i2c_gpio_remove i2c: pca954x: put the mux to disconnected state after resume i2c: st: Update i2c timings drivers/i2c/busses: use correct type for dma_map/unmap i2c: i2c-st: Use %pa to print 'resource_size_t' type i2c: s3c2410: resume the I2C controller earlier i2c: stub: Avoid an array overrun on I2C block transfers i2c: i801: Add device ID for Intel Wildcat Point PCH i2c: i801: Fix the alignment of the device table i2c: stub: Add support for banked register ranges i2c: stub: Remember the number of emulated chips i2c: stub: Add support for SMBus block commands i2c: efm32: correct namespacing of location property i2c: exynos5: remove extra line and fix an assignment ...
2014-08-09Documentation: SubmittingPatches: overhaul changelog descriptionJohannes Weiner
Maintainers often repeat the same feedback on poorly written changelogs - describe the problem, justify your changes, quantify optimizations, describe user-visible changes - but our documentation on writing changelogs doesn't include these things. Fix that. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-09Documentation: freefall: simplify pathnamesPavel Machek
Copying to local variable is actually not neccessary, if all we need to do is snprintf(). This also removes problem where devname could be missing zero termination. Reported-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>