Commit Graph

47 Commits

Author SHA1 Message Date
Noralf Trønnes 1cdea74ea0 drm/arc: Use drm_gem_fb_create()
drm_fb_cma_create() is just a wrapper around drm_gem_fb_create() now,
so use the function directly.

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1502631125-13557-5-git-send-email-noralf@tronnes.org
2017-09-02 14:23:06 +02:00
Dave Airlie 3154b13371 Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next
UAPI Changes:
- vc4: Allow userspace to dictate rendering order in submit_cl ioctl (Eric)

Cross-subsystem Changes:
- vboxvideo: One of Cihangir's patches applies to vboxvideo which is maintained
	     in staging

Core Changes:
- atomic_legacy_backoff is officially killed (Daniel)
- Extract drm_device.h (Daniel)
- Unregister drm device on unplug (Daniel)
- Rename deprecated drm_*_(un)?reference functions to drm_*_{get|put} (Cihangir)

Driver Changes:
- vc4: Error/destroy path cleanups, log level demotion, edid leak (Eric)
- various: Make various drm_*_funcs structs const (Bhumika)
- tinydrm: add support for LEGO MINDSTORMS EV3 LCD (David)
- various: Second half of .dumb_{map_offset|destroy} defaults set (Noralf)

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: Bhumika Goyal <bhumirks@gmail.com>
Cc: Cihangir Akturk <cakturk@gmail.com>
Cc: David Lechner <david@lechnology.com>
Cc: Noralf Trønnes <noralf@tronnes.org>

* tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc: (50 commits)
  drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset()
  drm/virtio: Use the drm_driver.dumb_destroy default
  drm/bochs: Use the drm_driver.dumb_destroy default
  drm/mgag200: Use the drm_driver.dumb_destroy default
  drm/exynos: Use .dumb_map_offset and .dumb_destroy defaults
  drm/msm: Use the drm_driver.dumb_destroy default
  drm/ast: Use the drm_driver.dumb_destroy default
  drm/qxl: Use the drm_driver.dumb_destroy default
  drm/udl: Use the drm_driver.dumb_destroy default
  drm/cirrus: Use the drm_driver.dumb_destroy default
  drm/tegra: Use .dumb_map_offset and .dumb_destroy defaults
  drm/gma500: Use .dumb_map_offset and .dumb_destroy defaults
  drm/mxsfb: Use .dumb_map_offset and .dumb_destroy defaults
  drm/meson: Use .dumb_map_offset and .dumb_destroy defaults
  drm/kirin: Use .dumb_map_offset and .dumb_destroy defaults
  drm/vc4: Continue the switch to drm_*_put() helpers
  drm/vc4: Fix leak of HDMI EDID
  dma-buf: fix reservation_object_wait_timeout_rcu to wait correctly v2
  dma-buf: add reservation_object_copy_fences (v2)
  drm/tinydrm: add support for LEGO MINDSTORMS EV3 LCD
  ...
2017-08-17 07:33:41 +10:00
Dave Airlie 09ef2378dc Merge tag 'drm-misc-next-2017-08-08' of git://anongit.freedesktop.org/git/drm-misc into drm-next
UAPI Changes:
- vc4: Add ioctl to allow attaching a label to a bo (Eric)
- Add new format/modifier blob plane property (Ben)
- armada: Use __u32/__u64 instead of uint32_t/uint64_t (Mikko)
- [kinda uapi] fb_helper: Expose display_info size via fb_info (David)

Core Changes:
- Default gem_dumb_[map_offset|destroy] as mmap/destroy implementations (Noralf)
- Simplify atomic properties by removing the helpers and handling in core (Daniel)

Driver Changes:
- stm: Add STM32 DSI controller driver (Phillipe)
- vc4: Add HDMI CEC support (Hans)
- rockchip: Refactor register init & soc version handling (Mark)
- misc: Remove .load_lut, .gamma_set, .gamma_get dead code (Peter)
- dw-hdmi: Add HDMI CEC support (Russell)

Cc: Philippe CORNU <philippe.cornu@st.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Mark yao <mark.yao@rock-chips.com>
Cc: Peter Rosin <peda@axentia.se>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Mikko Rapeli <mikko.rapeli@iki.fi>
Cc: David Lechner <david@lechnology.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>

* tag 'drm-misc-next-2017-08-08' of git://anongit.freedesktop.org/git/drm-misc: (107 commits)
  drm: Nuke drm_atomic_legacy_backoff
  drm: Nuke drm_atomic_helper_connector_dpms
  drm: Nuke drm_atomic_helper_connector_set_property
  drm: Nuke drm_atomic_helper_plane_set_property
  drm: Nuke drm_atomic_helper_crtc_set_property
  drm: Handle properties in the core for atomic drivers
  drm: Don't update property values for atomic drivers
  drm/omap: Rework the rotation-on-crtc hack
  drm/radeon: Use the drm_driver.dumb_destroy default
  drm/i915: Use the drm_driver.dumb_destroy default
  drm/sti: Use .dumb_map_offset and .dumb_destroy defaults
  drm: bridge: synopsys/dw-hdmi: Provide default configuration function for HDMI 2.0 PHY
  drm/fb-helper: pass physical dimensions to fbdev
  uapi drm/armada_drm.h: use __u32 and __u64 instead of uint32_t and uint64_t
  drm/bridge: dw-hdmi: remove CEC engine register definitions
  drm/bridge: dw-hdmi: add cec driver
  drm/bridge: dw-hdmi: add missing cec_notifier_put
  drm: remove unused and redundant callbacks
  staging: vboxvideo: remove dead gamma lut code
  drm: dw-hdmi-i2s: add missing company name on Copyright
  ...
2017-08-10 10:47:33 +10:00
Bhumika Goyal a5cb37d800 drm: make drm_mode_config_func const
Make these structures const as they are only stored in the funcs field
of a drm_mode_config structure which is of type const.
Done using Coccinelle:

@match disable optional_qualifier@
identifier s;
@@
static struct drm_mode_config_funcs s = {...};

@ref@
position p;
identifier match.s;
@@
s@p

@good1@
identifier y;
position ref.p;
identifier match.s;
@@
struct drm_mode_config y = {...,.funcs=&s@p,...};

@good2@
struct drm_mode_config y;
identifier match.s;
position ref.p;
@@
y.funcs = &s@p

@bad depends on  !good1 && !good2@
position ref.p;
identifier match.s;
@@
s@p

@depends on forall !bad disable optional_qualifier@
identifier match.s;
@@
static
+ const
struct drm_mode_config_funcs s;

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/1502204751-16525-1-git-send-email-bhumirks@gmail.com
2017-08-09 18:39:34 +02:00
Jose Abreu 22d0be2a55 drm: arcpgu: Allow some clock deviation in crtc->mode_valid() callback
Currently we expect that clock driver produces the exact same value
as we are requiring. There can, and will, be some deviation
however so we need to take that into account instead of just
rejecting the mode.

According to the HDMI spec we have a max of +-0.5% for the pixel clock
frequency deviation. Lets take that into an advantage and use it to
calculate how much deviation we can support.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2017-08-03 00:11:02 +03:00
Jose Abreu 0c43ff59e7 drm: arcpgu: Fix module unload
At module unload we are expecting a struct drm_device but at
probing we are not setting it right. Fix this and correct the
arcpgu module unload.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: 0c4250e7b1 ("drm: Add support of ARC PGU display controller")
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2017-08-03 00:11:02 +03:00
Jose Abreu a8f8fb2057 drm: arcpgu: Fix mmap() callback
Now that ARC properly supports DMA mmap() we can use the standard
CMA helper to map dumb buffers. This makes ARC PGU works with
standard DRM consumer applications like, for example, mpv/mplayer
via DRM. While at it, use the DEFINE_DRM_GEM_CMA_FOPS() helper.

This fixes the use of dumb buffers.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: 0c4250e7b1 ("drm: Add support of ARC PGU display controller")
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2017-08-03 00:11:01 +03:00
Alexey Brodkin 429ff616a5 arcpgu: Simplify driver name
This very minor change is still useful because it aligns
ARC PGU driver name with other DRM drivers and makes usage of
that driver name a bit easier.

For example in libdrm's test app we'll use "arcpgu" instead of
a bit more ugly "drm-arcpgu".

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-08-03 00:11:01 +03:00
Alexey Brodkin 13eee77065 drm/arcpgu: Opt in debugfs
This change adopts debugfs usage for outputting useful data.
As of today we print:
 * Mode and real HW clock values
 * Standard FB info

Code is heavily borrowed from ARM's HDLCD thus adding Liviu in Cc.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Jose Abreu <joabreu@synopsys.com>
2017-08-03 00:11:00 +03:00
Ben Widawsky e6fc3b6855 drm: Plumb modifiers through plane init
This is the plumbing for supporting fb modifiers on planes. Modifiers
have already been introduced to some extent, but this series will extend
this to allow querying modifiers per plane. Based on this, the client to
enable optimal modifications for framebuffers.

This patch simply allows the DRM drivers to initialize their list of
supported modifiers upon initializing the plane.

v2: A minor addition from Daniel

v3:
* Updated commit message
* s/INVALID/DRM_FORMAT_MOD_INVALID (Liviu)
* Remove some excess newlines (Liviu)
* Update comment for > 64 modifiers (Liviu)

v4: Minor comment adjustments (Liviu)

v5: Some new platforms added due to rebase

v6: Add some missed plane inits (or maybe they're new - who knows at
this point) (Daniel)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Daniel Stone <daniels@collabora.com> (v2)
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Daniel Stone <daniels@collabora.com>
2017-08-01 17:50:06 +01:00
Noralf Trønnes 3939b8837e drm/arc: Use .dumb_map_offset and .dumb_destroy defaults
This driver can use the drm_driver.dumb_destroy and
drm_driver.dumb_map_offset defaults, so no need to set them.

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-4-git-send-email-noralf@tronnes.org
2017-07-29 13:55:09 +02:00
Laurent Pinchart 64581714b5 drm: Convert atomic drivers from CRTC .disable() to .atomic_disable()
The CRTC .disable() helper operation is deprecated for atomic drivers,
the new .atomic_disable() helper operation being preferred. Convert all
atomic drivers to .atomic_disable() to avoid cargo-cult use of
.disable() in new drivers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for mediatek
Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc
Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-3-laurent.pinchart+renesas@ideasonboard.com
2017-06-30 14:53:15 +02:00
Laurent Pinchart 0b20a0f8c3 drm: Add old state pointer to CRTC .enable() helper function
The old state is useful for drivers that need to perform operations at
enable time that depend on the transition between the old and new
states.

While at it, rename the operation to .atomic_enable() to be consistent
with .atomic_disable(), as the .enable() operation is used by atomic
helpers only.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # for sun4i
Acked-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-drm and mediatek
Acked-by: Alexey Brodkin <abrodkin@synopsys.com> # for arcpgu
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # for atmel-hlcdc
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> # for hdlcd and mali-dp
Acked-by: Stefan Agner <stefan@agner.ch> # for fsl-dcu
Tested-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Philippe Cornu <philippe.cornu@st.com> # for stm
Acked-by: Vincent Abriou <vincent.abriou@st.com> # for sti
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> # for vmwgfx
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170630093646.7928-2-laurent.pinchart+renesas@ideasonboard.com
2017-06-30 14:53:14 +02:00
Laurent Pinchart b35954722c drm: arcpgu: Remove CRTC .prepare() helper operation
The CRTC helper .prepare() operation is legacy code, the atomic helpers
prefer the .disable() operation. As the arcpgu driver implements the
.disable() and .prepare() operations identicallly, .prepare() can be
removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170627211621.27767-2-laurent.pinchart+renesas@ideasonboard.com
2017-06-28 12:51:13 +02:00
Laurent Pinchart f3f63e6b56 drm: arcpgu: Remove CRTC .commit() helper operation
The CRTC helper .commit() operation is legacy code, the atomic helpers
prefer the .enable() operation. As the arcpgu driver implements the
.enable() operation, .commit() is never used and can be removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170627211621.27767-1-laurent.pinchart+renesas@ideasonboard.com
2017-06-28 12:51:13 +02:00
kbuild test robot 2bf5ccc25c drm: arcpgu: arc_pgu_crtc_mode_valid() can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170623095418.GA68865@lkp-sbx04
2017-06-23 12:29:32 +02:00
Jose Abreu 2b3d860efa drm: arcpgu: Use crtc->mode_valid() callback
Now that we have a callback to check if crtc supports a given mode
we can use it in arcpgu so that we restrict the number of probbed
modes to the ones we can actually display.

This is specially useful because arcpgu crtc is responsible to set
a clock value in the commit() stage but unfortunatelly this clock
does not support all the needed ranges.

Also, remove the atomic_check() callback as mode_valid() callback
will be called before.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Changes v4->v5:
	- Change commit message to "arcpgu" (Alexey)
Changes v3->v4:
	- Do not use aux function (Laurent)
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/c3bcd69016c77f68a03ff3cb6b22ca6f90e930b0.1495720737.git.joabreu@synopsys.com
2017-06-22 10:45:10 +02:00
Daniel Vetter fb51cbfd4b drm/arcgpu: Drop drm_vblank_cleanup
CRTC don't seem to get shut down in a controlled fashion, but no one
bothers to stop interrupts either so this races no matter what. Might
as well remove it. A call to drm_atomic_helper_shutdown would be
pretty sweet somewhere (and maybe getting rid of the load/unload
callbacks while at it).

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-16-daniel.vetter@ffwll.ch
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-14-daniel.vetter@ffwll.ch
2017-05-31 10:57:08 +02:00
Shawn Guo 967dd48417 drm: remove drm_vblank_no_hw_counter assignment from driver code
Core code already makes drm_driver.get_vblank_counter hook optional by
letting drm_vblank_no_hw_counter be the default implementation for the
function hook.  So the drm_vblank_no_hw_counter assignment in the driver
code becomes redundant and can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-3-git-send-email-shawnguo@kernel.org
2017-02-07 21:43:55 +01:00
Gabriel Krisman Bertazi e4563f6ba7 drm: Rely on mode_config data for fb_helper initialization
Instead of receiving the num_crts as a parameter, we can read it
directly from the mode_config structure.  I audited the drivers that
invoke this helper and I believe all of them initialize the mode_config
struct accordingly, prior to calling the fb_helper.

I used the following coccinelle hack to make this transformation, except
for the function headers and comment updates.  The first and second
rules are split because I couldn't find a way to remove the unused
temporary variables at the same time I removed the parameter.

// <smpl>
@r@
expression A,B,D,E;
identifier C;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
expression A,B,C,D,E;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
identifier r.C;
type T;
expression V;
@@
- T C;
<...
when != C
- C = V;
...>
// </smpl>

Changes since v1:
 - Rebased on top of the tip of drm-misc-next.
 - Remove mention to sti since a proper fix got merged.

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:12:00 +01:00
Laurent Pinchart 3bb80f2495 drm: bridge: Link encoder and bridge in core code
Instead of linking encoders and bridges in every driver (and getting it
wrong half of the time, as many drivers forget to set the drm_bridge
encoder pointer), do so in core code. The drm_bridge_attach() function
needs the encoder and optional previous bridge to perform that task,
update all the callers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Stefan Agner <stefan@agner.ch> # For DCU
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # For atmel-hlcdc
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For STI
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # For sun4i
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com> # For hisilicon
Acked-by: Jyri Sarha <jsarha@ti.com> # For tilcdc
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-4-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:31:45 +05:30
Ville Syrjälä 438b74a549 drm: Nuke fb->pixel_format
Replace uses of fb->pixel_format with fb->format->format.
Less duplicated information is a good thing.

Note that coccinelle failed to eliminate the
"/* fourcc format */" comment from drm_framebuffer.h, so I had
to do that part manually.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *a;
struct drm_framebuffer b;
@@
(
- a->pixel_format
+ a->format->format
|
- b.pixel_format
+ b.format->format
)

@@
struct drm_plane_state *a;
struct drm_plane_state b;
@@
(
- a->fb->pixel_format
+ a->fb->format->format
|
- b.fb->pixel_format
+ b.fb->format->format
)

@@
struct drm_crtc *CRTC;
@@
(
- CRTC->primary->fb->pixel_format
+ CRTC->primary->fb->format->format
|
- CRTC->primary->state->fb->pixel_format
+ CRTC->primary->state->fb->format->format
)

@@
struct drm_mode_set *set;
@@
(
- set->fb->pixel_format
+ set->fb->format->format
|
- set->crtc->primary->fb->pixel_format
+ set->crtc->primary->fb->format->format
)

@@
@@
 struct drm_framebuffer {
	 ...
-	 uint32_t pixel_format;
	 ...
 };

v2: Fix commit message (Laurent)
    Rebase due to earlier removal of many fb->pixel_format uses,
    including the 'fb->format = drm_format_info(fb->format->format);'
    snafu
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
2016-12-15 14:55:34 +02:00
Ville Syrjälä 81852b6abc drm/arcpgu: Add local 'fb' variables
Add a local 'fb' variable to a few places to get rid of the
'crtc->primary->fb' stuff. Looks neater and helps me with my ppor
coccinelle skills later.

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1479498793-31021-9-git-send-email-ville.syrjala@linux.intel.com
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-12-14 22:36:39 +02:00
Daniel Vetter 75e75cbd55 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge v4.9-rc8 to get at

commit e94bd1736f
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Nov 30 17:30:01 2016 +0900

drm: Don't call drm_for_each_crtc with a non-KMS driver

so I can apply Michel's follow-up patch.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-06 10:26:48 +01:00
Dave Airlie f03ee46be9 Linux 4.9-rc8
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Backmerge tag 'v4.9-rc8' into drm-next

Linux 4.9-rc8

Daniel requested this so we could apply some follow on fixes cleanly to -next.
2016-12-05 17:11:48 +10:00
Laurent Pinchart 949f08862d drm: Make the connector .detect() callback optional
Many drivers (21 to be exact) create connectors that are always
connected (for instance to an LVDS or DSI panel). Instead of forcing
them to implement a dummy .detect() handler, make the callback optional
and consider the connector as always connected in that case.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Vincent Abriou <vincent.abriou@st.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[seanpaul fixed small conflict in rcar-du/rcar_du_lvdscon.c]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-12-01 10:05:53 -05:00
Eugeniy Paltsev 7bc61cc5df drm/arcpgu: Accommodate adv7511 switch to DRM bridge
ARC PGU driver starts crashing on initialization after
'commit e12c2f6455 ("drm/i2c: adv7511: Convert to drm_bridge")'
This happenes because in "arcpgu_drm_hdmi_init" function we get pointer
of "drm_i2c_encoder_driver" structure, which doesn't exist after
adv7511 hdmi encoder interface changed from slave encoder to drm bridge.
So, when we call "encoder_init" function from this structure driver
crashes.

Bootlog:
------------------------------------->8--------------------------------
[drm] Initialized drm 1.1.0 20060810
arcpgu e0017000.pgu: arc_pgu ID: 0xabbabaab
arcpgu e0017000.pgu: assigned reserved memory node frame_buffer@9e000000
Path: (null)
CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-00001-gb5642252fa01-dirty #8
task: 9a058000 task.stack: 9a032000

[ECR   ]: 0x00220100 => Invalid Read @ 0x00000004 by insn @ 0x803934e8
[EFA   ]: 0x00000004
[BLINK ]: drm_atomic_helper_connector_dpms+0xa6/0x230
[ERET  ]: drm_atomic_helper_connector_dpms+0xa4/0x230
[STAT32]: 0x00000846 : K DE       E2 E1
BTA: 0x8016d949  SP: 0x9a033e34  FP: 0x00000000
LPS: 0x8036f6fc LPE: 0x8036f700 LPC: 0x00000000
r00: 0x8063c118 r01: 0x805b98ac r02: 0x00000b11
r03: 0x00000000 r04: 0x9a010f54 r05: 0x00000000
r06: 0x00000001 r07: 0x00000000 r08: 0x00000028
r09: 0x00000001 r10: 0x00000007 r11: 0x00000054
r12: 0x720a3033

Stack Trace:
  drm_atomic_helper_connector_dpms+0xa4/0x230
  arcpgu_drm_hdmi_init+0xbc/0x228
  arcpgu_probe+0x168/0x244
  platform_drv_probe+0x26/0x64
  really_probe+0x1f0/0x32c
  __driver_attach+0xa8/0xd0
  bus_for_each_dev+0x3c/0x74
  bus_add_driver+0xc2/0x184
  driver_register+0x50/0xec
  do_one_initcall+0x3a/0x120
  kernel_init_freeable+0x108/0x1a0
------------------------------------->8--------------------------------

Fix ARC PGU driver to be able work with drm bridge hdmi encoder
interface. The hdmi connector code isn't needed anymore as we expect
the adv7511 bridge driver to create/manage the connector.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-11-11 04:31:35 +03:00
Jani Nikula 55edf41b69 drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs
If we define drm_compat_ioctl NULL on CONFIG_COMPAT=n, we don't have to
check for the config everywhere.

Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1478014844-27454-1-git-send-email-jani.nikula@intel.com
2016-11-02 11:33:47 -04:00
Tom Gundersen 0f2886057b drm: Don't swallow error codes in drm_dev_alloc()
There are many reasons other than ENOMEM that drm_dev_init() can
fail. Return ERR_PTR rather than NULL to be able to distinguish
these in the caller.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160921145919.13754-2-teg@jklm.no
2016-09-22 04:03:48 -07:00
Laurent Pinchart 420382adf6 drm: Don't implement empty prepare_fb()/cleanup_fb()
The plane .prepare_fb() and .cleanup_fb() helpers are optional, there's
no need to implement empty stubs, and no need to explicitly set the
function pointers to NULL either.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[danvet: Resolved conflicts with Chris' patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-19 10:58:55 +02:00
Wei Yongjun 7725936e9c drm/arc: Remove redundant dev_err call in arcpgu_load()
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-19 15:33:50 -04:00
Wei Yongjun ee29a9eaff drm/arc: Fix some sparse warnings
Fixes the following sparse warnings:

drivers/gpu/drm/arc/arcpgu_drv.c:52:5: warning:
  symbol 'arcpgu_gem_mmap' was not declared. Should it be static?
drivers/gpu/drm/arc/arcpgu_drv.c:134:48: warning:
  Using plain integer as NULL pointer
drivers/gpu/drm/arc/arcpgu_drv.c:155:5: warning:
  symbol 'arcpgu_unload' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-19 15:33:37 -04:00
Tobias Jakobi c89f813a01 drm/arc: make fbdev support really optional
Currently enabling ARC DRM support automatically pulls in
fbdev dependency. However this dep is unnecessary since
DRM core already handles this for us (DRM_FBDEV_EMULATION).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-2-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18 09:11:32 +02:00
Markus Elfring f15a8e9a14 drm/arcpgu: Delete an unnecessary check before drm_fbdev_cma_hotplug_event()
The drm_fbdev_cma_hotplug_event() function tests whether its argument
is NULL and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/dd9a16b1-234c-6776-e6d9-943a8457334e@users.sourceforge.net
2016-07-18 09:11:29 +02:00
Peter Chen 8e7446c36f gpu: drm: arcpgu_drv: add missing of_node_put after calling of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15 08:47:01 -04:00
Chris Wilson e01d9e5415 drm/arc: Remove redundant calls to drm_connector_register_all()
Up to now, the recommendation was for drivers to call drm_dev_register()
followed by drm_connector_register_all(). Now that
drm_connector_register() is safe against multiple invocations, we can
move drm_connector_register_all() to drm_dev_register() and not suffer
from any backwards compatibility issues with drivers not following the
more rigorous init ordering.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466151923-1572-3-git-send-email-chris@chris-wilson.co.uk
2016-06-21 10:53:12 +02:00
Dave Airlie a0877f5203 Merge tag 'topic/drm-misc-2016-06-15' of git://anongit.freedesktop.org/drm-intel into drm-next
- best_encoder cleanup from Boris.
- drm_simple_display_pipe helpers from Noralf. Looks really neat imo, and
  there's 2-3 in-flight drivers which look like they could/should use it.
  Anyway, with this we have now helpers and everything in place to write
  drivers for simple hw with fewer complexity in the driver than what
  fbdev would need. That was the last complaint I've heard from embedded
  folks after we made atomic happen. Mission accomplished!
- nonblocking commit helpers for atomic, plus a bunch of driver patches
  for that.
- Prep patch from Laurent for cleaned up pixel format functions.
- More of Gustavo's cleanup for drm vblank functions.
- and a few oddball things in between

Plus the merge of docs-next to prep the docbook->sphinx conversion as
discussed. Jon cc'ed as fyi.

* tag 'topic/drm-misc-2016-06-15' of git://anongit.freedesktop.org/drm-intel: (108 commits)
  drm/atomic-helpers: Clear up cleanup_done a bit
  drm/atomic-helpers: Stall on the right commit
  drm/vmwgfx: use *_32_bits() macros
  drm/virtio: Don't reinvent a flipping wheel
  drm/i915: Fix missing unlock on error in i915_ppgtt_info()
  drm/gma500: use drm_crtc_vblank_{on,off}()
  drm/radeon: use crtc directly in drm_crtc_vblank_put()
  drm/amdgpu: use crtc directly in drm_crtc_vblank_put()
  drm/radeon: use drm_crtc_vblank_{on,off}()
  drm/amdgpu: use drm_crtc_vblank_{on,off}()
  drm: make drm_vblank_{get,put}() static
  drm: remove legacy drm_arm_vblank_event()
  drm: remove legacy drm_send_vblank_event()
  drm/nouveau: replace legacy vblank helpers
  drm/prime: fix error path deadlock fail
  drm/dsi: Add uevent callback
  drm: fb: cma: fix memory leak
  drm: i915: Rely on the default ->best_encoder() behavior where appropriate
  drm: Add helper for simple display pipeline
  drm/bridge: dw-hdmi: Use drm_atomic_helper_best_encoder()
  ...
2016-06-16 05:49:32 +10:00
Ruud Derwig a189d28e5e drm/arcpgu: Make ARC PGU usable on simulation platforms
In case of simulation there's no real encoder/transmitter device
because in the model's virtual LCD  we're rendering whatever
appears in frame-buffer memory.

Signed-off-by: Ruud Derwig <rderwig@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-06-13 17:45:17 +02:00
Boris Brezillon da5b9d6b09 drm: arc: Rely on the default ->best_encoder() behavior
We have a 1:1 relationship between connectors and encoders and the
driver is relying on the atomic helpers: we can drop the custom
->best_encoder(), and let the core call drm_atomic_helper_best_encoder()
for us.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-3-git-send-email-boris.brezillon@free-electrons.com
2016-06-10 17:21:52 +02:00
Daniel Vetter 17b58b2398 drm/arc: Implement nonblocking commit correctly
Committing with block it is not.

Thanks to the fixed up vblank event handling we can just use the
helper support for nonblocking commits now.

Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-11-git-send-email-daniel.vetter@ffwll.ch
2016-06-10 17:11:17 +02:00
Daniel Vetter 84d9a4a288 drm/arc: Actually bother with handling atomic events.
The drm core has a nice ready-made helper for exactly the simple case
where it should fire on the next vblank.

Note that arming the vblank event in _begin is probably too early, and
might easily result in the vblank firing too early, before the new set
of planes are actually disabled. But that's kinda a minor issue
compared to just outright hanging userspace.

v2: Be more robust and either arm, when the CRTC is on, or just send
the event out right away.

v3: Just unconditionally send out the event directly, for safety -
arcpgu doesn't even have vblank support ...

Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-3-git-send-email-daniel.vetter@ffwll.ch
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-4-git-send-email-daniel.vetter@ffwll.ch
2016-06-10 16:55:05 +02:00
Daniel Vetter ed4f885657 drm/arc: Nuke event_list
This is just used for cleanup in preclose, and with the reworked event
handling code this is now done properly by the core.

Nuke it!

But it also shows that arc totally fails at sending out drm events for
flips. Next patch will hack that up.

v2: Rebase it!

Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-2-git-send-email-daniel.vetter@ffwll.ch
2016-06-09 10:27:33 +02:00
Dave Airlie 2cca455740 Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next
As promised, piles of prep work all around:
- drm_atomic_state rework, prep for nonblocking commit helpers
- fence patches from Gustavo and Christian to prep for atomic fences and
  some cool work in ttm/amdgpu from Christian
- drm event prep for both nonblocking commit and atomic fences
- Gustavo seems on a crusade against the non-kms-native version of the
  vblank functions.
- prep work from Boris to nuke all the silly ->best_encoder
  implementations we have (we really only need that for truly dynamic
  cases like dvi-i vs dvi-d or dp mst selecting the right transcoder on
  intel)
- prep work from Laurent to rework the format handling functions
- and few small things all over

* tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel: (47 commits)
  drm/dsi: Implement set tear scanline
  drm/fb_cma_helper: Implement fb_mmap callback
  drm/qxl: Remove useless drm_fb_get_bpp_depth() call
  drm/ast: Remove useless drm_fb_get_bpp_depth() call
  drm/atomic: Fix remaining places where !funcs->best_encoder is valid
  drm/core: Change declaration for gamma_set.
  Documentation: add fence-array to kernel DocBook
  drm/shmobile: use drm_crtc_vblank_{get,put}()
  drm/radeon: use drm_crtc_vblank_{get,put}()
  drm/qxl: use drm_crtc_vblank_{get,put}()
  drm/atmel: use drm_crtc_vblank_{get,put}()
  drm/armada: use drm_crtc_vblank_{get,put}()
  drm/amdgpu: use drm_crtc_vblank_{get,put}()
  drm/virtio: use drm_crtc_send_vblank_event()
  drm/udl: use drm_crtc_send_vblank_event()
  drm/qxl: use drm_crtc_send_vblank_event()
  drm/atmel: use drm_crtc_send_vblank_event()
  drm/armada: use drm_crtc_send_vblank_event()
  drm/doc: Switch to sphinx/rst fixed-width quoting
  drm/doc: Drop kerneldoc for static functions in drm_irq.c
  ...
2016-06-09 11:19:28 +10:00
Gustavo Padovan 1b47aaf9a9 drm/fence: add fence to drm_pending_event
Now a drm_pending_event can either send a real drm_event or signal a
fence, or both. It allow us to signal via fences when the buffer is
displayed on the screen. Which in turn means that the previous buffer
is not in use anymore and can be freed or sent back to another driver
for processing.

v2: Comments from Daniel Vetter
	- call fence_signal in drm_send_event_locked()
	- remove unneeded !e->event check

v3: Remove drm_pending_event->destroy to fix a leak when e->file_priv
is not set.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> (v2)
[danvet: fix one e->destroy in arcpgu due to rebasing.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464818821-5736-13-git-send-email-daniel.vetter@ffwll.ch
2016-06-03 00:01:59 +02:00
Daniel Vetter e1512ee08f drm/arcpgu: Use lockless gem BO free callback
No dev->struct_mutex anywhere to be seen.

Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464630800-30786-25-git-send-email-daniel.vetter@ffwll.ch
2016-06-01 09:42:08 +02:00
Alexey Brodkin 8aeab995fa drm/arcpgu: use dedicated memory area for frame buffer
Now when ARC supports reserved memory areas and
per-device coherent DMA allocations we may switch ARC PGU
to use of those dedicated areas.

One of the benefits we may move frame-buffer area out
from IO Coherency aperture and so significantly
reduce IOC utilization allowing less demanding
peripherals to use all perks of IOC.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: linux-kernel@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
2016-04-29 14:22:32 +03:00
Carlos Palminha 51dacf2089 drm: Add support of ARC PGU display controller
ARC PGU could be found on some development boards from Synopsys.
This is a simple byte streamer that reads data from a framebuffer
and sends data to the single encoder.

Signed-off-by: Carlos Palminha <palminha@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-snps-arc@lists.infradead.org
2016-04-26 17:58:02 +03:00