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10 years agodrm/nv50-/sw: use nv50_software_context_dtor....
Ben Skeggs [Thu, 7 Aug 2014 21:21:53 +0000 (07:21 +1000)]
drm/nv50-/sw: use nv50_software_context_dtor....

You would not believe the troubles this caused me...

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nv50-/fb: use dma_mapping_error() to check dma_map_page() result
Ben Skeggs [Tue, 5 Aug 2014 12:03:49 +0000 (22:03 +1000)]
drm/nv50-/fb: use dma_mapping_error() to check dma_map_page() result

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau: Dis/Enable vblank irqs during suspend/resume.
Mario Kleiner [Tue, 29 Jul 2014 00:36:44 +0000 (02:36 +0200)]
drm/nouveau: Dis/Enable vblank irqs during suspend/resume.

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>
10 years agodrm/nouveau: platform: update moved Tegra header
Alexandre Courbot [Sat, 26 Jul 2014 09:36:02 +0000 (18:36 +0900)]
drm/nouveau: platform: update moved Tegra header

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>
10 years agodrm/nouveau/gk20a: reclocking support
Alexandre Courbot [Sat, 26 Jul 2014 09:41:41 +0000 (18:41 +0900)]
drm/nouveau/gk20a: reclocking support

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>
10 years agodrm/nouveau/clk: support for non-BIOS pstates
Alexandre Courbot [Sat, 26 Jul 2014 09:41:40 +0000 (18:41 +0900)]
drm/nouveau/clk: support for non-BIOS pstates

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>
10 years agodrm/nouveau/clk: make therm and volt devices optional
Alexandre Courbot [Sat, 26 Jul 2014 09:41:39 +0000 (18:41 +0900)]
drm/nouveau/clk: make therm and volt devices optional

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>
10 years agodrm/nouveau/perfmon: do not forget to destroy the engine context
Samuel Pitoiset [Mon, 21 Jul 2014 09:59:44 +0000 (11:59 +0200)]
drm/nouveau/perfmon: do not forget to destroy the engine context

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>
10 years agodrm/nouveau: map pages using DMA API
Alexandre Courbot [Thu, 31 Jul 2014 09:09:42 +0000 (18:09 +0900)]
drm/nouveau: map pages using DMA API

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>
10 years agodrm/nouveau/pwr/macros: Stop playing Russian roulette on data memory
Roy Spliet [Sat, 2 Aug 2014 15:15:01 +0000 (17:15 +0200)]
drm/nouveau/pwr/macros: Stop playing Russian roulette on data memory

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nve4/graph: do not crash if no power device present
Alexandre Courbot [Tue, 15 Jul 2014 01:36:11 +0000 (10:36 +0900)]
drm/nve4/graph: do not crash if no power device present

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>
10 years agodrm/gk20a: add BAR instance
Alexandre Courbot [Fri, 27 Jun 2014 11:36:54 +0000 (20:36 +0900)]
drm/gk20a: add BAR instance

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>
10 years agodrm/nouveau/bar: add noncached ioremap property
Alexandre Courbot [Fri, 27 Jun 2014 10:28:50 +0000 (19:28 +0900)]
drm/nouveau/bar: add noncached ioremap property

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>
10 years agodrm/nouveau: support for probing platform devices
Alexandre Courbot [Thu, 26 Jun 2014 05:33:32 +0000 (14:33 +0900)]
drm/nouveau: support for probing platform devices

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>
10 years agodrm/nouveau/kms: restore acceleration before fb_set_suspend() resumes
Ben Skeggs [Mon, 30 Jun 2014 03:18:48 +0000 (13:18 +1000)]
drm/nouveau/kms: restore acceleration before fb_set_suspend() resumes

This *should* be safe these days.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/kms: take more care when pulling down accelerated fbcon
Ben Skeggs [Sat, 28 Jun 2014 10:44:07 +0000 (20:44 +1000)]
drm/nouveau/kms: take more care when pulling down accelerated fbcon

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau: expose pstate selection per-power source in sysfs
Ben Skeggs [Fri, 13 Jun 2014 04:17:09 +0000 (14:17 +1000)]
drm/nouveau: expose pstate selection per-power source in sysfs

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>
10 years agodrm/nouveau/clk: allow selection of different power state for ac vs battery
Ben Skeggs [Fri, 13 Jun 2014 03:23:42 +0000 (13:23 +1000)]
drm/nouveau/clk: allow selection of different power state for ac vs battery

v2:
- s/init/fini/ typo, reported by Alex

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/clk: schedule pstate changes through a workqueue
Ben Skeggs [Fri, 13 Jun 2014 04:58:21 +0000 (14:58 +1000)]
drm/nouveau/clk: schedule pstate changes through a workqueue

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/nouveau/device: register for acpi events
Ben Skeggs [Fri, 13 Jun 2014 02:42:21 +0000 (12:42 +1000)]
drm/nouveau/device: register for acpi events

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/gk208-/gr: stop touching 0x260 inappropriately
Ben Skeggs [Thu, 12 Jun 2014 12:15:21 +0000 (22:15 +1000)]
drm/gk208-/gr: stop touching 0x260 inappropriately

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>
10 years agodrm/gk110b/gr: initvals differ from gk110
Ben Skeggs [Thu, 12 Jun 2014 11:22:32 +0000 (21:22 +1000)]
drm/gk110b/gr: initvals differ from gk110

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/gk104/gr: disable PGOB at init time
Ben Skeggs [Thu, 12 Jun 2014 09:49:08 +0000 (19:49 +1000)]
drm/gk104/gr: disable PGOB at init time

This removes the previous hack that worked on some boards.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/gk104/pwr: implement PGOB disable method
Ben Skeggs [Thu, 12 Jun 2014 08:58:05 +0000 (18:58 +1000)]
drm/gk104/pwr: implement PGOB disable method

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>
10 years agodrm/nouveau/pwr: tidy
Ben Skeggs [Thu, 12 Jun 2014 08:31:32 +0000 (18:31 +1000)]
drm/nouveau/pwr: tidy

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
10 years agodrm/ttm: expose CPU address of DMA-allocated pages
Alexandre Courbot [Mon, 4 Aug 2014 09:28:54 +0000 (18:28 +0900)]
drm/ttm: expose CPU address of DMA-allocated pages

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>
10 years agoRevert "drm: drop redundant drm_file->is_master"
Dave Airlie [Thu, 7 Aug 2014 21:30:53 +0000 (07:30 +1000)]
Revert "drm: drop redundant drm_file->is_master"

This reverts commit 48ba813701eb14b3008edefef4a0789b328e278c.

Thanks to Chris:
"drm_file->is_master is not synomous with having drm_file->master ==
drm_file->minor->master. This is because drm_file->master is the same
for all drm_files of the same generation and so when there is a master,
every drm_file believes itself to be the master. Confusion ensues and
things go pear shaped when one file is closed and there is no master
anymore."

Conflicts:
drivers/gpu/drm/drm_drv.c
drivers/gpu/drm/drm_stub.c

10 years agoMerge tag 'drm/tegra/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux into...
Dave Airlie [Thu, 7 Aug 2014 09:53:22 +0000 (19:53 +1000)]
Merge tag 'drm/tegra/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v3.17-rc1

Mostly some cleanup all over the place. Pitch alignment limitations of
the display controller are now honored and job submission is 64-bit
safe.

The SOR output (used for eDP) properly configures sync signal polarities
according to the display mode rather than hard-coding them to some value
and the number of bits per color is now taken from the panel rather than
hard-coded to properly support 24-bit vs. 18-bit panels.

The DSI controller now properly supports non-continuous clock mode.

GEM objects can now have their flags and tiling mode modified via IOCTLs
to allow buffers imported from Nouveau to be properly displayed. Newer
generations of the Tegra display controller can also detile block linear
buffers at scan-out time.

Finally the driver now properly exports MODULE_DEVICE_TABLEs to allow it
to be automatically loaded when built as a module.

* tag 'drm/tegra/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: add MODULE_DEVICE_TABLEs
  drm/tegra: dc - Reset controller on driver remove
  drm/tegra: Properly align stride for framebuffers
  drm/tegra: sor - Configure proper sync polarities
  drm/tegra: sor - Use bits-per-color from panel
  drm/tegra: Make job submission 64-bit safe
  drm/tegra: Allow non-authenticated processes to create buffer objects
  drm/tegra: Add SET/GET_FLAGS IOCTLs
  drm/tegra: Add SET/GET_TILING IOCTLs
  drm/tegra: Implement more tiling modes
  drm/tegra: dsi - Handle non-continuous clock flag
  drm/tegra: sor - missing unlock on error

10 years agoMerge tag 'drm/panel/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux into...
Dave Airlie [Thu, 7 Aug 2014 09:51:52 +0000 (19:51 +1000)]
Merge tag 'drm/panel/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/panel: Changes for v3.17-rc1

Panels can now be more finely controlled via .prepare() and .unprepare()
callbacks in addition to .enable() and .disable(). New kerneldoc details
what they are supposed to do and when they should be called.

The simple panel driver gained support for a couple of new panels and it
is now possible to specify additional delays during power up and power
down sequences if panels require it.

DSI devices can now advertise that they support non-continuous clock
mode which will allow DSI host controllers to disable the high speed
clock after transmissions to save power.

* tag 'drm/panel/for-3.17-rc1' of git://anongit.freedesktop.org/tegra/linux: (30 commits)
  drm/panel: simple: Use devm_gpiod_get_optional()
  drm/dsi: Replace upcasting macro by function
  drm/panel: ld9040: Replace upcasting macro by function
  drm/exynos: dp: Modify driver to support drm_panel
  drm/exynos: Move DP setup into commit()
  drm/panel: simple: Add AUO B133HTN01 panel support
  drm/panel: simple: Support delays in panel functions
  drm/panel: simple: Add proper definition for prepare and unprepare
  drm/panel: s6e8aa0: Add proper definition for prepare and unprepare
  drm/panel: ld9040: Add proper definition for prepare and unprepare
  drm/tegra: Add support for panel prepare and unprepare routines
  drm/exynos: dsi: Add support for panel prepare and unprepare routines
  drm/exynos: dpi: Add support for panel prepare and unprepare routines
  drm/panel: simple: Add dummy prepare and unprepare routines
  drm/panel: s6e8aa0: Add dummy prepare and unprepare routines
  drm/panel: ld9040: Add dummy prepare and unprepare routines
  drm/panel: Provide convenience wrapper for .get_modes()
  drm/panel: add .prepare() and .unprepare() functions
  drm/panel: simple: Remove simple-panel compatible
  drm/panel: simple: Add Innolux N116BGE panel support
  ...

10 years agodrm/panel: simple: Use devm_gpiod_get_optional()
Alexandre Courbot [Fri, 25 Jul 2014 14:47:25 +0000 (23:47 +0900)]
drm/panel: simple: Use devm_gpiod_get_optional()

Use the new devm_gpiod_get_optional() to simplify the probe code.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/dsi: Replace upcasting macro by function
Thierry Reding [Tue, 5 Aug 2014 07:01:32 +0000 (09:01 +0200)]
drm/dsi: Replace upcasting macro by function

Using a function instead of a macro provides proper type checking.

Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: ld9040: Replace upcasting macro by function
Thierry Reding [Tue, 5 Aug 2014 06:59:01 +0000 (08:59 +0200)]
drm/panel: ld9040: Replace upcasting macro by function

Using a function instead of a macro provides proper type checking.

Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/exynos: dp: Modify driver to support drm_panel
Ajay Kumar [Thu, 31 Jul 2014 17:42:14 +0000 (23:12 +0530)]
drm/exynos: dp: Modify driver to support drm_panel

Add drm_panel controls to support powerup/down of the
eDP panel, if one is present at the sink side.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/exynos: Move DP setup into commit()
Ajay Kumar [Thu, 31 Jul 2014 17:42:13 +0000 (23:12 +0530)]
drm/exynos: Move DP setup into commit()

Add commit callback for exynos_dp, and move the DP link training,
video configuration code from the hotplug handler into commit().

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Add AUO B133HTN01 panel support
Ajay Kumar [Thu, 31 Jul 2014 17:42:12 +0000 (23:12 +0530)]
drm/panel: simple: Add AUO B133HTN01 panel support

The AUO B133HTN01 is a 13.6" FHD TFT LCD panel connecting to an eDP
interface and with an integrated LED backlight unit.

This panel is used on the Samsung Chromebook 2 (XE503C32).

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Support delays in panel functions
Ajay Kumar [Thu, 31 Jul 2014 17:42:11 +0000 (23:12 +0530)]
drm/panel: simple: Support delays in panel functions

For most of the panels, we need to provide delays during various stages
of panel power up and power down. Add a structure to hold those delay
values and use them in corresponding functions.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Add proper definition for prepare and unprepare
Ajay Kumar [Thu, 31 Jul 2014 17:42:10 +0000 (23:12 +0530)]
drm/panel: simple: Add proper definition for prepare and unprepare

Move out code from enable and disable routines to prepare
and unprepare routines, so that functionality is properly
distributed across all the panel functions.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: s6e8aa0: Add proper definition for prepare and unprepare
Ajay Kumar [Thu, 31 Jul 2014 17:42:09 +0000 (23:12 +0530)]
drm/panel: s6e8aa0: Add proper definition for prepare and unprepare

Move out code from enable and disable routines to prepare
and unprepare routines, so that functionality is properly
distributed across all the panel functions.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: ld9040: Add proper definition for prepare and unprepare
Ajay Kumar [Thu, 31 Jul 2014 17:42:08 +0000 (23:12 +0530)]
drm/panel: ld9040: Add proper definition for prepare and unprepare

Move out code from enable and disable routines to prepare
and unprepare routines, so that functionality is properly
distributed across all the panel functions.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/tegra: Add support for panel prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:07 +0000 (23:12 +0530)]
drm/tegra: Add support for panel prepare and unprepare routines

Modify tegra output driver to support the new panel calls:
prepare and unprepare.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/exynos: dsi: Add support for panel prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:06 +0000 (23:12 +0530)]
drm/exynos: dsi: Add support for panel prepare and unprepare routines

Modify exynos_dsi driver to support the new panel calls:
prepare and unprepare.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/exynos: dpi: Add support for panel prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:05 +0000 (23:12 +0530)]
drm/exynos: dpi: Add support for panel prepare and unprepare routines

Modify exynos_dpi driver to support the new panel calls:
prepare and unprepare.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Add dummy prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:04 +0000 (23:12 +0530)]
drm/panel: simple: Add dummy prepare and unprepare routines

This patch adds dummy definition for prepare and unprepare
routines to simple panel driver.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: s6e8aa0: Add dummy prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:03 +0000 (23:12 +0530)]
drm/panel: s6e8aa0: Add dummy prepare and unprepare routines

This patch adds dummy definition for prepare and unprepare
routines to s6e8aa0 panel driver.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: ld9040: Add dummy prepare and unprepare routines
Ajay Kumar [Thu, 31 Jul 2014 17:42:02 +0000 (23:12 +0530)]
drm/panel: ld9040: Add dummy prepare and unprepare routines

This patch adds dummy definition for prepare and unprepare
routines to ld9040 panel driver.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: Provide convenience wrapper for .get_modes()
Ajay Kumar [Wed, 30 Jul 2014 10:02:15 +0000 (12:02 +0200)]
drm/panel: Provide convenience wrapper for .get_modes()

Add a convenience wrapper for the struct drm_panel_funcs' .get_modes()
function so that not every driver needs to check that the panel driver
implements the function before calling it.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
[treding: extract from larger patch, commit message]
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: add .prepare() and .unprepare() functions
Ajay Kumar [Thu, 17 Jul 2014 20:43:48 +0000 (02:13 +0530)]
drm/panel: add .prepare() and .unprepare() functions

Panels often require an initialization sequence that consists of three
steps: a) powering up the panel, b) starting transmission of video data
and c) enabling the panel (e.g. turn on backlight). This is usually
necessary to avoid visual glitches at the beginning of video data
transmission.

Similarly, the shutdown sequence is typically done in three steps as
well: a) disable the panel (e.g. turn off backlight), b) cease video
data transmission and c) power down the panel.

Currently drivers can only implement .enable() and .disable() functions,
which is not enough to implement the above sequences. This commit adds a
second pair of functions, .prepare() and .unprepare() to allow more
fine-grained control over when the above steps are performed.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
[treding: rewrite changelog, add kerneldoc]
Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Remove simple-panel compatible
Thierry Reding [Tue, 29 Jul 2014 11:38:56 +0000 (13:38 +0200)]
drm/panel: simple: Remove simple-panel compatible

simple-panel is not a valid panel model, so there is no data (video
timings, etc.) associated with it. Therefore drivers can't do anything
useful with it, so it should not appear in the table of OF matches.

Device trees will always need to specify the exact model of the panel.

Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm/panel: simple: Add Innolux N116BGE panel support
Thierry Reding [Thu, 3 Jul 2014 12:02:59 +0000 (14:02 +0200)]
drm/panel: simple: Add Innolux N116BGE panel support

The Innolux N116BGE is an 11.6" WXGA TFT LCD panel connecting to an eDP
interface and with an integrated LED backlight unit.

It is used in the Tegra132 Norrin reference design.

Signed-off-by: Thierry Reding <treding@nvidia.com>
10 years agodrm: move drm_stub.c to drm_drv.c
Dave Airlie [Wed, 6 Aug 2014 07:24:25 +0000 (17:24 +1000)]
drm: move drm_stub.c to drm_drv.c

Everyone agrees we should do this,

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
Dave Airlie [Wed, 6 Aug 2014 07:21:13 +0000 (17:21 +1000)]
Merge branch 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux into drm-next

bunch of cleanups
* 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux:
  drm: mark drm_context support as legacy
  drm: make sysfs device always available for minors
  drm: make minor->index available early
  drm: merge drm_drv.c into drm_ioctl.c
  drm: move module initialization to drm_stub.c
  drm: don't de-authenticate clients on master-close
  drm: drop redundant drm_file->is_master
  drm: extract legacy ctxbitmap flushing

10 years agodrm/i915: lock around link status and link training.
Dave Airlie [Tue, 5 Aug 2014 00:40:20 +0000 (10:40 +1000)]
drm/i915: lock around link status and link training.

We need to take the connection mutex around the link status
check for non-MST case, but also around the MST link training
on short HPDs.

I suspect we actually should have a dpcd lock in the future as
well, that just lock the local copies of dpcd and flags stored
from that.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
10 years agoMerge branch 'drm-next-3.17' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Tue, 5 Aug 2014 22:18:21 +0000 (08:18 +1000)]
Merge branch 'drm-next-3.17' of git://people.freedesktop.org/~agd5f/linux into drm-next

- Additional Hawaii fixes
- Support for using the display scaler on non-fixed mode displays
- Support for new firmware format that makes it easier to update
- Enable dpm by default on additional asics
- GPUVM improvements
- Support for uncached and write combined gtt buffers
- Allow allocation of BOs larger than visible vram
- Various other small fixes and improvements

* 'drm-next-3.17' of git://people.freedesktop.org/~agd5f/linux: (57 commits)
  drm/radeon: Prevent hdmi deep color if max_tmds_clock is undefined.
  drm/radeon: Use pflip irqs for pageflip completion if possible. (v2)
  drm/radeon: tweak ACCEL_WORKING2 query for the new firmware for hawaii
  drm/radeon: use packet3 for nop on hawaii with new firmware
  drm/radeon: tweak ACCEL_WORKING2 query for hawaii
  drm/radeon: use packet2 for nop on hawaii with old firmware
  drm/radeon: update IB size estimation for VM
  drm/radeon: split PT setup in more functions
  drm/radeon: add VM GART copy optimization to NI as well
  drm/radeon: take a BO reference on VM cleanup
  drm/radeon: add radeon_bo_ref function
  drm/radeon: remove taking mclk_lock from radeon_bo_unref
  drm/radeon: adjust default radeon_vm_block_size v2
  drm/radeon: try to enable VM flushing once more
  drm/radeon: use an intervall tree to manage the VMA v2
  drm/radeon: remove radeon_bo_clear_va
  drm/radeon: invalidate moved BOs in the VM (v2)
  drm/radeon: re-enable dpm by default on BTC
  drm/radeon: re-enable dpm by default on cayman
  drm/radeon: Only flush HDP cache from idle ioctl if BO is in VRAM
  ...

10 years agodrm: mark drm_context support as legacy
David Herrmann [Thu, 24 Jul 2014 10:10:04 +0000 (12:10 +0200)]
drm: mark drm_context support as legacy

This renames all drm-context helpers to drm_legacy_*() and moves the
internal definitions into the new drm_legacy.h header. This header is
local to DRM-core and drivers shouldn't access it.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm/radeon: Prevent hdmi deep color if max_tmds_clock is undefined.
Mario Kleiner [Tue, 5 Aug 2014 03:23:11 +0000 (05:23 +0200)]
drm/radeon: Prevent hdmi deep color if max_tmds_clock is undefined.

HDMI spec requires a valid max_tmds_clock from edid for hdmi
deep color modes. If a sink violates this, disable deep color.

Also add a hint to user about the deep_color module parameter if
deep color is disabled due to that.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm: make sysfs device always available for minors
David Herrmann [Wed, 23 Jul 2014 09:38:38 +0000 (11:38 +0200)]
drm: make sysfs device always available for minors

For each minor we allocate a sysfs device as minor->kdev. Currently, this
is allocated and registered in drm_minor_register(). This makes it
impossible to add sysfs-attributes to the device before it is registered.
Therefore, they are not added atomically, nor can we move device_add()
*after* ->load() is called.

This patch makes minor->kdev available early, but only adds the device
during minor-registration. Note that the registration is still called
before ->load() as debugfs needs to be split, too. This will be fixed in
follow-ups.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: make minor->index available early
David Herrmann [Wed, 23 Jul 2014 08:34:52 +0000 (10:34 +0200)]
drm: make minor->index available early

Instead of allocating the minor-index during registration, we now do this
during allocation. This way, debug-messages between minor-allocation and
minor-registration will now use the correct minor instead of 0. Same is
done for unregistration vs. free, so debug-messages between
device-shutdown and device-destruction show proper indices.

Even though minor-indices are allocated early, we don't enable minor
lookup early. Instead, we keep the entry set to NULL and replace it during
registration / unregistration. This way, the index is allocated but lookup
only works if registered.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: merge drm_drv.c into drm_ioctl.c
David Herrmann [Wed, 23 Jul 2014 12:14:53 +0000 (14:14 +0200)]
drm: merge drm_drv.c into drm_ioctl.c

All that is left in drm_drv.c is ioctl management. Merge it into
drm_ioctl.c so we have all ioctl management in one file (and the name is
much more fitting).

Maybe we should now rename drm_stub.c to drm_drv.c again?

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: move module initialization to drm_stub.c
David Herrmann [Wed, 23 Jul 2014 10:29:56 +0000 (12:29 +0200)]
drm: move module initialization to drm_stub.c

Most of the new DRM management functions are nowadays in drm_stub.c. By
moving the core module initialization to drm_stub.c we can make several
global variables static and keep the stub-open helper local.

The core files now look like this:
  drm_stub.c: Core management
   drm_drv.c: Ioctl dispatcher
 drm_ioctl.c: Actual ioctl backends
  drm_fops.c: Char-dev file-operations

A follow-up patch will move what is left from drm_drv.c into drm_ioctl.c.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: don't de-authenticate clients on master-close
David Herrmann [Tue, 22 Jul 2014 15:12:26 +0000 (17:12 +0200)]
drm: don't de-authenticate clients on master-close

If an active DRM-Master closes its device, we deauthenticate all clients
on that master. However, if an inactive DRM-Master closes its device, we
do nothing. This is quite inconsistent and breaks several scenarios:

 1) If this was used as security mechanism, it fails horribly if a master
    closes a device while VT switched away. Furthermore, none of the few
    drivers using ->master_*() callbacks seems to require it, anyway.

 2) If you spawn weston (or any other non-UMS compositor) in background
    while another compositor is active, both will get assigned to the
    same "drm_master" object. If the foreground compositor now exits, all
    clients of both the foreground AND background compositor will be
    de-authenticated leading to unexpected behavior.

Stop this non-sense and keep clients authenticated. We don't do this when
dropping DRM-Master (i.e., switching VTs) so don't do it on active-close
either!

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: drop redundant drm_file->is_master
David Herrmann [Tue, 22 Jul 2014 16:46:09 +0000 (18:46 +0200)]
drm: drop redundant drm_file->is_master

The drm_file->is_master field is redundant as it's equivalent to:
    drm_file->master && drm_file->master == drm_file->minor->master

1) "=>"
  Whenever we set drm_file->is_master, we also set:
      drm_file->minor->master = drm_file->master;

  Whenever we clear drm_file->is_master, we also call:
      drm_master_put(&drm_file->minor->master);
  which implicitly clears it to NULL.

2) "<="
  minor->master cannot be set if it is non-NULL. Therefore, it stays as
  is unless a file drops it.

  If minor->master is NULL, it is only set by places that also adjust
  drm_file->is_master.

Therefore, we can safely drop is_master and replace it by an inline helper
that matches:
    drm_file->master && drm_file->master == drm_file->minor->master

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm: extract legacy ctxbitmap flushing
David Herrmann [Wed, 23 Jul 2014 07:01:12 +0000 (09:01 +0200)]
drm: extract legacy ctxbitmap flushing

The ctxbitmap code is only used by legacy drivers so lets try to keep it
as separated as possible. Furthermore, the locking is non-obvious and
kinda weird with ctxlist_mutex *and* struct_mutex. Keeping all ctxbitmap
access in one file is much easier to review and makes drm_release() more
readable.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
10 years agodrm/radeon: Use pflip irqs for pageflip completion if possible. (v2)
Mario Kleiner [Tue, 29 Jul 2014 04:21:44 +0000 (06:21 +0200)]
drm/radeon: Use pflip irqs for pageflip completion if possible. (v2)

Skip the "manual" pageflip completion checks via polling and
guessing in the vblank handler radeon_crtc_handle_vblank() on
asics which are known to reliably support hw pageflip completion
irqs. Those pflip irqs are a more reliable and race-free method
of handling pageflip completion detection, whereas the "classic"
polling method has some small races in combination with dpm on,
and with the reworked pageflip implementation since Linux 3.16.

On old asics without pflip irqs, the classic method is used.

On asics with known good pflip irqs, only pflip irqs are used
by default, but a new module parameter "use_pflipirqs" allows to
override this in case we encounter asics in the wild with
unreliable or faulty pflip irqs. A module parameter of 0 allows
to use the classic method only in such a case. A parameter of 1
allows to use both classic method and pflip irqs as additional
band-aid to avoid some small races which could happen with the
classic method alone. The setting 1 gives Linux 3.16 behaviour.

Hw pflip irqs are available since R600.

Tested on DCE-4, AMD Cedar - FirePro 2270.

v2:  agd5f: only enable pflip interrupts on DCE4+ as they are not
reliable on older asics.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: tweak ACCEL_WORKING2 query for the new firmware for hawaii
Andreas Boll [Fri, 1 Aug 2014 18:05:32 +0000 (20:05 +0200)]
drm/radeon: tweak ACCEL_WORKING2 query for the new firmware for hawaii

Adjust the previous tweak for hawaii to return 3 if the new firmware is used.

Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: use packet3 for nop on hawaii with new firmware
Alex Deucher [Fri, 1 Aug 2014 18:05:31 +0000 (20:05 +0200)]
drm/radeon: use packet3 for nop on hawaii with new firmware

Older firmware didn't support the new nop packet.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
10 years agodrm/radeon: tweak ACCEL_WORKING2 query for hawaii
Alex Deucher [Fri, 1 Aug 2014 18:05:30 +0000 (20:05 +0200)]
drm/radeon: tweak ACCEL_WORKING2 query for hawaii

Return 2 so we can be sure the kernel has the necessary
changes for acceleration to work.

Note: This patch depends on these two commits:
 - drm/radeon: fix cut and paste issue for hawaii.
 - drm/radeon: use packet2 for nop on hawaii with old firmware

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: use packet2 for nop on hawaii with old firmware
Alex Deucher [Fri, 1 Aug 2014 18:05:29 +0000 (20:05 +0200)]
drm/radeon: use packet2 for nop on hawaii with old firmware

Older firmware didn't support the new nop packet.

v2 (Andreas Boll):
 - Drop usage of packet3 for new firmware

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Andreas Boll <andreas.boll.dev@gmail.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: update IB size estimation for VM
Christian König [Wed, 30 Jul 2014 19:05:18 +0000 (21:05 +0200)]
drm/radeon: update IB size estimation for VM

That should allow us to allocate bigger BOs.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: split PT setup in more functions
Christian König [Wed, 30 Jul 2014 19:05:17 +0000 (21:05 +0200)]
drm/radeon: split PT setup in more functions

Move the decision what to use into the common VM code.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: add VM GART copy optimization to NI as well
Christian König [Wed, 30 Jul 2014 19:05:16 +0000 (21:05 +0200)]
drm/radeon: add VM GART copy optimization to NI as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: take a BO reference on VM cleanup
Christian König [Wed, 30 Jul 2014 19:04:57 +0000 (21:04 +0200)]
drm/radeon: take a BO reference on VM cleanup

This closes a small window where the GPU might have accessed freed up memory.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: add radeon_bo_ref function
Christian König [Wed, 30 Jul 2014 19:04:56 +0000 (21:04 +0200)]
drm/radeon: add radeon_bo_ref function

To be consistent with radeon_bo_unref, needed in the following patch.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: remove taking mclk_lock from radeon_bo_unref
Christian König [Wed, 30 Jul 2014 19:04:55 +0000 (21:04 +0200)]
drm/radeon: remove taking mclk_lock from radeon_bo_unref

It's causing lockdep warnings and why should
we access the memory that is freed up?

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: adjust default radeon_vm_block_size v2
Christian König [Sat, 19 Jul 2014 11:55:58 +0000 (13:55 +0200)]
drm/radeon: adjust default radeon_vm_block_size v2

v2: rebase on vm_size scale change. Adjust vm_size default to 8,
    Better handle the default and smaller values.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: try to enable VM flushing once more
Christian König [Fri, 18 Jul 2014 07:24:56 +0000 (09:24 +0200)]
drm/radeon: try to enable VM flushing once more

Let's try to fix bugs related to this instead of just disabling it.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: use an intervall tree to manage the VMA v2
Alex Deucher [Wed, 30 Jul 2014 15:49:56 +0000 (11:49 -0400)]
drm/radeon: use an intervall tree to manage the VMA v2

Scales much better than scanning the address range linearly.

v2: store pfn instead of address

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: remove radeon_bo_clear_va
Christian König [Fri, 18 Jul 2014 07:24:54 +0000 (09:24 +0200)]
drm/radeon: remove radeon_bo_clear_va

Won't work anyway, instead WARN_ON if the VA list isn't
empty when we free the BO.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: invalidate moved BOs in the VM (v2)
Christian König [Fri, 18 Jul 2014 07:24:53 +0000 (09:24 +0200)]
drm/radeon: invalidate moved BOs in the VM (v2)

Don't wait for the BO to be used again, just
update the PT on the next VM use.

v2: remove stray semicolon.

Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: re-enable dpm by default on BTC
Alex Deucher [Mon, 14 Jul 2014 16:01:40 +0000 (12:01 -0400)]
drm/radeon: re-enable dpm by default on BTC

This patch depends on:
e07929810f0a19ddd756558290c7d72827cbfcd9
(drm/radeon/dpm: fix typo in vddci setup for eg/btc)

bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=73053
https://bugzilla.kernel.org/show_bug.cgi?id=68571

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: re-enable dpm by default on cayman
Alex Deucher [Mon, 7 Jul 2014 21:13:37 +0000 (17:13 -0400)]
drm/radeon: re-enable dpm by default on cayman

This patch depends on:
b0880e87c1fd038b84498944f52e52c3e86ebe59
(drm/radeon/dpm: fix vddci setup typo on cayman)

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=69723

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: Only flush HDP cache from idle ioctl if BO is in VRAM
Michel Dänzer [Fri, 1 Aug 2014 08:22:09 +0000 (17:22 +0900)]
drm/radeon: Only flush HDP cache from idle ioctl if BO is in VRAM

The HDP cache only applies to CPU access to VRAM.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon/dpm: handle voltage info fetching on hawaii
Alex Deucher [Thu, 31 Jul 2014 22:07:17 +0000 (18:07 -0400)]
drm/radeon/dpm: handle voltage info fetching on hawaii

Some hawaii cards use a different method to fetch the
voltage info from the vbios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=74250

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon/atom: add new voltage fetch function for hawaii
Alex Deucher [Thu, 31 Jul 2014 21:57:42 +0000 (17:57 -0400)]
drm/radeon/atom: add new voltage fetch function for hawaii

Some hawaii boards use a different method for fetching the
voltage information from the vbios.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: Always flush the HDP cache before submitting a CS to the GPU
Michel Dänzer [Thu, 31 Jul 2014 09:43:49 +0000 (18:43 +0900)]
drm/radeon: Always flush the HDP cache before submitting a CS to the GPU

This ensures the GPU sees all previous CPU writes to VRAM, which makes it
safe:

* For userspace to stream data from CPU to GPU via VRAM instead of GTT
* For IBs to be stored in VRAM instead of GTT
* For ring buffers to be stored in VRAM instead of GTT, if the HPD flush
  is performed via MMIO

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: s/ioctl_wait_idle/mmio_hpd_flush/
Michel Dänzer [Thu, 31 Jul 2014 09:43:48 +0000 (18:43 +0900)]
drm/radeon: s/ioctl_wait_idle/mmio_hpd_flush/

And clean up the function comment a little.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: separate ring and IB handling
Christian König [Thu, 31 Jul 2014 11:44:03 +0000 (13:44 +0200)]
drm/radeon: separate ring and IB handling

Both on their own are complex enough.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: fix reversed logic in evergreen_mc_resume
Alex Deucher [Wed, 30 Jul 2014 21:57:28 +0000 (17:57 -0400)]
drm/radeon: fix reversed logic in evergreen_mc_resume

Need to unblank the display when resuming the MC.  No
functional change as this code path is not currently
hit.  We always disable the displays entirely rather
than just blanking them.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: set VM base addr using the PFP v2
Christian König [Wed, 30 Jul 2014 15:18:12 +0000 (17:18 +0200)]
drm/radeon: set VM base addr using the PFP v2

Seems to make VM flushes more stable on SI and CIK.

v2: only use the PFP on the GFX ring on CIK

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon/cik: Read back SDMA WPTR register after writing it
Michel Dänzer [Tue, 29 Jul 2014 09:47:22 +0000 (18:47 +0900)]
drm/radeon/cik: Read back SDMA WPTR register after writing it

For symmetry with other *_set_wptr hooks.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: Use write-combined CPU mappings of IBs on >= CIK
Michel Dänzer [Tue, 29 Jul 2014 09:47:21 +0000 (18:47 +0900)]
drm/radeon: Use write-combined CPU mappings of IBs on >= CIK

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: Use write-combined CPU mappings of ring buffers with PCIe
Michel Dänzer [Tue, 29 Jul 2014 09:47:20 +0000 (18:47 +0900)]
drm/radeon: Use write-combined CPU mappings of ring buffers with PCIe

PCI GART doesn't support unsnooped access. AGP GART already uses
write-combined CPU mappings.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: load the lm63 driver for an lm64 thermal chip.
Alex Deucher [Mon, 28 Jul 2014 03:21:50 +0000 (23:21 -0400)]
drm/radeon: load the lm63 driver for an lm64 thermal chip.

Looks like the lm63 driver supports the lm64 as well.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
10 years agodrm/radeon: make radeon_connector_encoder_is_hbr2 static
Alex Deucher [Thu, 24 Jul 2014 20:06:57 +0000 (16:06 -0400)]
drm/radeon: make radeon_connector_encoder_is_hbr2 static

It's only used in radeon_connectors.c.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: add trace_radeon_vm_flush
Christian König [Tue, 22 Jul 2014 15:42:34 +0000 (17:42 +0200)]
drm/radeon: add trace_radeon_vm_flush

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: fix R600_PTE_GART handling
Christian König [Tue, 22 Jul 2014 15:42:20 +0000 (17:42 +0200)]
drm/radeon: fix R600_PTE_GART handling

That didn't worked correctly any more and opened up a security problem.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: remove discardable flag from radeon_gem_object_create
Christian König [Mon, 21 Jul 2014 11:27:27 +0000 (13:27 +0200)]
drm/radeon: remove discardable flag from radeon_gem_object_create

Unused and unimplemented. Also fix specifying the
kernel flag incorrectly at one occasion.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: add a PX quirk list
Alex Deucher [Fri, 18 Jul 2014 15:54:20 +0000 (11:54 -0400)]
drm/radeon: add a PX quirk list

Some PX laptops seems to have problems turning the dGPU on/off.
Add a quirk list to disable runpm by default on those systems.
Also convert the current PX d3 delay handling to a quirk.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=51381
https://bugzilla.kernel.org/show_bug.cgi?id=74551

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
10 years agodrm/radeon: remove visible vram size limit on bo allocation (v4)
Alex Deucher [Thu, 17 Jul 2014 16:26:29 +0000 (12:26 -0400)]
drm/radeon: remove visible vram size limit on bo allocation (v4)

Now that fallback to gtt is fixed for cpu access, we can
remove this limit.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=78717

v2: use new gart_pin_size to accurately track available gtt.
v3: fix comment
v4: clarify comment

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
10 years agodrm/radeon: use vram/gart pinned size in radeon_do_test_moves
Alex Deucher [Thu, 17 Jul 2014 16:20:32 +0000 (12:20 -0400)]
drm/radeon: use vram/gart pinned size in radeon_do_test_moves

Gives more accurate count and prevents failures when we can't
allocate memory for the tests.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
10 years agodrm/radeon: use vram/gart pinned size in radeon_gem_info_ioctl
Alex Deucher [Thu, 17 Jul 2014 16:16:20 +0000 (12:16 -0400)]
drm/radeon: use vram/gart pinned size in radeon_gem_info_ioctl

Gives a more accurate limit than the previous code.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>