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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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passed
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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You would not believe the troubles this caused me...
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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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>
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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>
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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>
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This *should* be safe these days.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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v2:
- s/init/fini/ typo, reported by Alex
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This removes the previous hack that worked on some boards.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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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
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Due to recent consolidation of Exynos suspend and cpuidle code, some
parts of suspend and resume sequences are executed two times, once from
exynos_pm_syscore_ops and then from exynos_cpu_pm_notifier() and thus it
breaks suspend, at least on Exynos4-based boards. In addition, simple
core power down from a cpuidle driver could, in case of CPU 0 could
result in calling functions that are specific to suspend and deeper idle
states.
This patch fixes the issue by moving those operations outside the CPU PM
notifier into suspend and AFTR code paths. This leads to a bit of code
duplication, but allows additional code simplification, so in the end
more code is removed than added.
Fixes: 85f9f90808b4 ("ARM: EXYNOS: Use the cpu_pm notifier for pm")
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: arm@kernel.org
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
[b.zolnierkie: ported patch over current changes]
[b.zolnierkie: fixed exynos_aftr_finisher() return value]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pages allocated using the DMA API have a coherent memory mapping. Make
this mapping visible to drivers so they can decide to use it instead of
creating their own redundant one.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: David Airlie <airlied@linux.ie>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Pull MTD updates from Brian Norris:
"AMD-compatible CFI driver:
- Support OTP programming for Micron M29EW family
- Increase buffer write timeout, according to detected flash
parameter info
NAND
- Add helpers for retrieving ONFI timing modes
- GPMI: provide option to disable bad block marker swapping (required
for Ka-On electronics platforms)
SPI NOR
- EON EN25QH128 support
- Support new Flag Status Register (FSR) on a few Micron flash
Common
- New sysfs entries for bad block and ECC stats
And a few miscellaneous refactorings, cleanups, and driver
improvements"
* tag 'for-linus-20140808' of git://git.infradead.org/linux-mtd: (31 commits)
mtd: gpmi: make blockmark swapping optional
mtd: gpmi: remove line breaks from error messages and improve wording
mtd: gpmi: remove useless (void *) type casts and spaces between type casts and variables
mtd: atmel_nand: NFC: support multiple interrupt handling
mtd: atmel_nand: implement the nfc_device_ready() by checking the R/B bit
mtd: atmel_nand: add NFC status error check
mtd: atmel_nand: make ecc parameters same as definition
mtd: nand: add ONFI timing mode to nand_timings converter
mtd: nand: define struct nand_timings
mtd: cfi_cmdset_0002: fix do_write_buffer() timeout error
mtd: denali: use 8 bytes for READID command
mtd/ftl: fix the double free of the buffers allocated in build_maps()
mtd: phram: Fix whitespace issues
mtd: spi-nor: add support for EON EN25QH128
mtd: cfi_cmdset_0002: Add support for locking OTP memory
mtd: cfi_cmdset_0002: Add support for writing OTP memory
mtd: cfi_cmdset_0002: Invalidate cache after entering/exiting OTP memory
mtd: cfi_cmdset_0002: Add support for reading OTP
mtd: spi-nor: add support for flag status register on Micron chips
mtd: Account for BBT blocks when a partition is being allocated
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
- much better HDMI infoframe support for OMAP
- Cirrus Logic CLPS711X framebuffer driver
- DT support for PL11x CLCD driver
- various small fixes
* tag 'fbdev-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (35 commits)
OMAPDSS: DSI: fix depopulating dsi peripherals
video: hyperv: hyperv_fb: refresh the VM screen by force on VM panic
video: ARM CLCD: Fix DT-related build problems
drivers: video: fbdev: atmel_lcdfb.c: Add ability to inverted backlight PWM.
video: ARM CLCD: Add DT support
drm/omap: Add infoframe & dvi/hdmi mode support
OMAPDSS: HDMI: remove the unused code
OMAPDSS: HDMI5: add support to set infoframe & HDMI mode
OMAPDSS: HDMI4: add support to set infoframe & HDMI mode
OMAPDSS: HDMI: add infoframe and hdmi_dvi_mode fields
OMAPDSS: add hdmi ops to hdmi-connector and tpd12s015
OMAPDSS: add hdmi ops to hdmi_ops and omap_dss_driver
OMAPDSS: HDMI: remove custom avi infoframe
OMAPDSS: HDMI5: use common AVI infoframe support
OMAPDSS: HDMI4: use common AVI infoframe support
OMAPDSS: Kconfig: select HDMI
OMAPDSS: HDMI: fix name conflict
OMAPDSS: DISPC: clean up dispc_mgr_timings_ok
OMAPDSS: DISPC: reject interlace for lcd out
OMAPDSS: DISPC: fix debugfs reg dump
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm changes from Thierry Reding:
"The set of changes for this merge window contains two new drivers: one
for Rockchip SoCs and another for STMicroelectronics STiH4xx SoCs.
The remainder of the changes are the usual small cleanups such as
removing redundant OOM messages, signalling that a PWM chip's
operations can sleep and removing an unneeded dependency"
* tag 'pwm/for-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: rockchip: Added to support for RK3288 SoC
pwm: rockchip: document RK3288 SoC compatible
pwm: sti: Remove PWM period table
pwm: sti: Sync between enable/disable calls
pwm: sti: Ensure same period values for all channels
pwm: sti: Fix PWM prescaler handling
pwm: sti: Supply Device Tree binding documentation for ST's PWM IP
pwm: sti: Add new driver for ST's PWM IP
pwm: imx: set can_sleep flag for imx_pwm
pwm: lpss: remove dependency on clk framework
pwm: pwm-tipwmss: remove unnecessary OOM messages
pwm: rockchip: document device tree bindings
pwm: add Rockchip SoC PWM support
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO update from Linus Walleij:
"This is the bulk of GPIO changes for the v3.17 development cycle, and
this time we got a lot of action going on and it will continue:
- The core GPIO library implementation has been split up in three
different files:
- gpiolib.c for the latest and greatest and shiny GPIO library code
using GPIO descriptors only
- gpiolib-legacy.c for the old integer number space API that we are
phasing out gradually
- gpiolib-sysfs.c for the sysfs interface that we are not entirely
happy with, but has to live on for ABI compatibility
- Add a flags argument to *gpiod_get* functions, with some
backward-compatibility macros to ease transitions. We should have
had the flags there from the beginning it seems, now we need to
clean up the mess. There is a plan on how to move forward here
devised by Alexandre Courbot and Mark Brown
- Split off a special <linux/gpio/machine.h> header for the board
gpio table registration, as per example from the regulator
subsystem
- Start to kill off the return value from gpiochip_remove() by
removing the __must_check attribute and removing all checks inside
the drivers/gpio directory. The rationale is: well what were we
supposed to do if there is an error code? Not much: print an error
message. And gpiolib already does that. So make this function
return void eventually
- Some cleanups of hairy gpiolib code, make some functions not to be
used outside the library private and make sure they are not
exported, remove gpiod_lock/unlock_as_irq() as the existing
function is for driver-internal use and fine as it is, delete
gpio_ensure_requested() as it is not meaningful anymore
- Support the GPIOF_ACTIVE_LOW flag from gpio_request_one() function
calls, which is logical since this is already supported when
referencing GPIOs from e.g. device trees
- Switch STMPE, intel-mid, lynxpoint and ACPI (!) to use the gpiolib
irqchip helpers cutting down on GPIO irqchip boilerplate a bit more
- New driver for the Zynq GPIO block
- The usual incremental improvements around a bunch of drivers
- Janitorial syntactic and semantic cleanups by Jingoo Han, and
Rickard Strandqvist especially"
* tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (37 commits)
MAINTAINERS: update GPIO include files
gpio: add missing includes in machine.h
gpio: add flags argument to gpiod_get*() functions
MAINTAINERS: Update Samsung pin control entry
gpio / ACPI: Move event handling registration to gpiolib irqchip helpers
gpio: lynxpoint: Convert to use gpiolib irqchip
gpio: split gpiod board registration into machine header
gpio: remove gpio_ensure_requested()
gpio: remove useless check in gpiolib_sysfs_init()
gpiolib: Export gpiochip_request_own_desc and gpiochip_free_own_desc
gpio: move gpio_ensure_requested() into legacy C file
gpio: remove gpiod_lock/unlock_as_irq()
gpio: make gpiochip_get_desc() gpiolib-private
gpio: simplify gpiochip_export()
gpio: remove export of private of_get_named_gpio_flags()
gpio: Add support for GPIOF_ACTIVE_LOW to gpio_request_one functions
gpio: zynq: Clear pending interrupt when enabling a IRQ
gpio: drop retval check enforcing from gpiochip_remove()
gpio: remove all usage of gpio_remove retval in driver/gpio
devicetree: Add Zynq GPIO devicetree bindings documentation
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- big update to Wacom driver by Benjamin Tissoires, converting it to
HID infrastructure and unifying USB and Bluetooth models
- large update to ALPS driver by Hans de Goede, which adds support for
newer touchpad models as well as cleans up and restructures the code
- more changes to Atmel MXT driver, including device tree support
- new driver for iPaq x3xxx touchscreen
- driver for serial Wacom tablets
- driver for Microchip's CAP1106
- assorted cleanups and improvements to existing drover and input core
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (93 commits)
Input: wacom - update the ABI doc according to latest changes
Input: wacom - only register once the MODULE_* macros
Input: HID - remove hid-wacom Bluetooth driver
Input: wacom - add copyright note and bump version to 2.0
Input: wacom - remove passing id for wacom_set_report
Input: wacom - check for bluetooth protocol while setting OLEDs
Input: wacom - handle Intuos 4 BT in wacom.ko
Input: wacom - handle Graphire BT tablets in wacom.ko
Input: wacom - prepare the driver to include BT devices
Input: hyperv-keyboard - register as a wakeup source
Input: imx_keypad - remove ifdef round PM methods
Input: jornada720_ts - get rid of space indentation and use tab
Input: jornada720_ts - switch to using managed resources
Input: alps - Rushmore and v7 resolution support
Input: mcs5000_ts - remove ifdef around power management methods
Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP
Input: ads7846 - release resources on failure for clean exit
Input: wacom - add support for 0x12C ISDv4 sensor
Input: atmel_mxt_ts - use deep sleep mode when stopped
ARM: dts: am437x-gp-evm: Update binding for touchscreen size
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Merge more incoming from Andrew Morton:
"Two new syscalls:
memfd_create in "shm: add memfd_create() syscall"
kexec_file_load in "kexec: implementation of new syscall kexec_file_load"
And:
- Most (all?) of the rest of MM
- Lots of the usual misc bits
- fs/autofs4
- drivers/rtc
- fs/nilfs
- procfs
- fork.c, exec.c
- more in lib/
- rapidio
- Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs,
fs/cramfs, fs/romfs, fs/qnx6.
- initrd/initramfs work
- "file sealing" and the memfd_create() syscall, in tmpfs
- add pci_zalloc_consistent, use it in lots of places
- MAINTAINERS maintenance
- kexec feature work"
* emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits)
MAINTAINERS: update nomadik patterns
MAINTAINERS: update usb/gadget patterns
MAINTAINERS: update DMA BUFFER SHARING patterns
kexec: verify the signature of signed PE bzImage
kexec: support kexec/kdump on EFI systems
kexec: support for kexec on panic using new system call
kexec-bzImage64: support for loading bzImage using 64bit entry
kexec: load and relocate purgatory at kernel load time
purgatory: core purgatory functionality
purgatory/sha256: provide implementation of sha256 in purgaotory context
kexec: implementation of new syscall kexec_file_load
kexec: new syscall kexec_file_load() declaration
kexec: make kexec_segment user buffer pointer a union
resource: provide new functions to walk through resources
kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc()
kexec: move segment verification code in a separate function
kexec: rename unusebale_pages to unusable_pages
kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
bin2c: move bin2c in scripts/basic
shm: wait for pins to be released when sealing
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