Commit Graph

14392 Commits

Author SHA1 Message Date
Ben Skeggs
4b6c6fb5b9 drm/nvd0/disp: add debugging to show which supervisor actions are taken
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 14:00:39 +10:00
Ben Skeggs
9cf6ba20b4 drm/nv50-/disp: dump channel state when update method fails
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 14:00:39 +10:00
Ben Skeggs
b62b9ec2eb drm/nv50-/disp: allow dumping core channel state at first supervisor intr
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 14:00:38 +10:00
Ben Skeggs
d67d92c066 drm/nv50-/disp: add method descriptions for debugging
Lists of known methods for the DMA channel classes, and mappings to
their priv register addresses (where known).

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 14:00:37 +10:00
Ben Skeggs
117e16335b drm/nv50/disp: decode the known error codes to human readable form
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:33 +10:00
Ben Skeggs
a8f8b4891d drm/nv50/disp: preparation for storing static class data
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:33 +10:00
Ben Skeggs
70a3e64795 drm/nouveau/core: extend width of engine mask for namedb
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:33 +10:00
Ilia Mirkin
8db3a740b0 drm/nouveau/bios: fix INDEX_ADDRESS_LATCHED trace printout
Having a \n in the middle of a format string means that the next line
doesn't get the prefixes unlike every other line printed by the trace.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:33 +10:00
Ilia Mirkin
46a7b62596 drm/nv50/gr: decode texture trap status code
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:33 +10:00
Ilia Mirkin
c33e05a136 drm/nouveau: use nv_debug for NV_DEBUG, make DRM a separate subflag
It's really confusing for NV_DEBUG's printing to be controlled via
drm.debug while everything else is controlled via nouveau.debug. These
messages can be turned on with nouveau.debug=DRM=debug.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:32 +10:00
Ilia Mirkin
46941b0fb6 drm/nouveau: make hdmi device finding failure prints debug level
The hdmi device is required for runtime pm. However it is not available
on many esp older devices, which were all seeing these error messages.
Take this opportunity to also convert to nv_debug instead of the DRM_*
messages, like the rest of nouveau does.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:32 +10:00
Alexandre Courbot
02f0b8c895 drm/nve0/fifo: allocate usermem as needed
Memory was always allocated for 4096 channels. Change this to allocate
what we actually need according to the number of channels we use.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:32 +10:00
Alexandre Courbot
b6c4285afa drm/nouveau: handle -EACCES runtime PM return code
pm_runtime_get*() may return -EACCES to indicate a device does not have
runtime PM enabled. This is currently the case with platform devices
on Nouveau, and is not an error in that context. Handle this case
without failure.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:32 +10:00
Ilia Mirkin
ef98c1f7b3 drm/nouveau/abi16: fix handles past the 32nd one
abi16->handles is a u64, so make sure to use 1ULL << val when modifying.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:32 +10:00
Ilia Mirkin
73970c47be drm/nouveau: replace ffsll with __ffs64
The ffsll function is a lot slower than the __ffs64 built-in which
compiles to a single instruction on 64-bit. It's also nice to avoid
custom versions of standard functions. Note that __ffs == ffs - 1.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:31 +10:00
Jingoo Han
0ac4e3a58d drm/nouveau/hwmon: replace strict_strtol() with kstrtol()
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:31 +10:00
Dan Carpenter
aa34efeddb drm/nouveau/hwmon: remove some redundant checks
No need to check "ret" twice in a row.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:31 +10:00
Ilia Mirkin
4ac1b1a29f drm/nv50/graph: update status enum names
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-03-26 13:59:31 +10:00
Dave Airlie
a5a2391e27 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Highlights
----------

Re-factoring works over the exynos drm framework.
  - drm_crtc, drm_encoder/drm_connector are implemented by sub drivers
    directly.
  - Removing pm interfaces from each sub driver, and implementing them
    at top level of exynos drm.
Add DisplayPort Transmitter driver.
  - Just moving existing driver from drivers/vides/exynos into
    drivers/gpu/drm/exynos.
Add new LVDS bridge driver, PTN3460.
  - Placed in drivers/gpu/drm/bridge, and this device is used to transfer
    image signal from DP(DisplayPort) to LVDS Panel.
    So this driver will be used with DP driver moved into exynos drm.
Add parallel panel support
  - With the re-factoring patch series, existing parallel panel support was
    broken by moving exynos_drm_display ops into each real connector driver,
    DP. So this patch series adds a new parallel panel module,
    exynos_drm_dpi, for supporting parallel panel, and also adds relevant
    bindings.
Some fixups and cleanups.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (45 commits)
  drm/exynos: fimd: remove unused variable
  ARM: dts: exynos4210-universal: add exynos/fimd node
  drm/exynos: restore parallel output interface support
  exynos/fimd: add parallel output related bindings
  drm/exynos: correct timing porch conversion
  drm/exynos: init kms poll after creation of connectors
  drm/exynos: delay fbdev initialization until an output is connected
  drm/exynos: fix unnecessary resource cleanup
  drm/exynos: hdmi: use i2c_adapter instead of i2c_client
  drm/exynos: hdmi: consider APB PHY
  drm/exynos: Remove the exynos_drm_connector shim
  drm/exynos: Implement lvds bridge discovery to DP driver
  drm/bridge: Add PTN3460 bridge driver
  drm/exynos: Implement drm_connector directly in vidi driver
  drm/exynos: Implement drm_connector directly in dp driver
  drm/exynos: Implement drm_connector in hdmi directly
  drm/exynos: Add create_connector callback
  drm/exynos: Consolidate suspend/resume in drm_drv
  drm/exynos: Clean up FIMD power on/off routines
  drm/exynos: Implement dpms display callback in DP
  ...
2014-03-24 08:58:20 +10:00
Daniel Vetter
c46145aee1 drm/gma500: add locking to fixed panel edid probing
With the recent addition of locking checks in

commit 62ff94a549
Author:     Daniel Vetter <daniel.vetter@ffwll.ch>
AuthorDate: Thu Jan 23 22:18:47 2014 +0100

    drm/crtc-helper: remove LOCKING from kerneldoc

drm_add_edid_modes started to WARN about the mode_config.mutex not
being held in the lvds and dp initialization code.

Now since this is init code locking is fairly redudant if it wouldn't
be for the drm core registering sysfs files a bit early. And the
locking WARNINGs nicely enforce that indeed all access to the mode
lists are properly protected. And a full audit shows that only i915
and gma500 touch the modes lists at init time.

Hence I've opted to wrap up this entire mode detection sequence for
fixed panels with the mode_config mutex for both lvds and edp outputs.

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-24 07:54:30 +10:00
Daniel Vetter
060c877848 drm/i915: add locking to fixed panel edid probing
With the recent addition of locking checks in

commit 62ff94a549
Author:     Daniel Vetter <daniel.vetter@ffwll.ch>
AuthorDate: Thu Jan 23 22:18:47 2014 +0100

    drm/crtc-helper: remove LOCKING from kerneldoc

drm_add_edid_modes started to WARN about the mode_config.mutex not
being held in the lvds and dp initialization code.

Now since this is init code locking is fairly redudant if it wouldn't
be for the drm core registering sysfs files a bit early. And the
locking WARNINGs nicely enforce that indeed all access to the mode
lists are properly protected. And a full audit shows that only i915
and gma500 touch the modes lists at init time.

Hence I've opted to wrap up this entire mode detection sequence for
fixed panels with the mode_config mutex for both lvds and edp outputs.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-24 07:54:29 +10:00
Andrzej Hajda
1d531062cd drm/exynos: fimd: remove unused variable
The patch removes unused vidcon0 field from fimd_context structure.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:41 +09:00
Andrzej Hajda
14b6873a01 drm/exynos: restore parallel output interface support
The patch adds parallel output interface to FIMD device driver.
It also restores support for panels initialized by boot loader,
but without proper kernel driver.
Driver uses video interface bindings to find connected panel.
It uses drm_panel interface to interact with the panel.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:40 +09:00
Andrzej Hajda
8b4cad2353 drm/exynos: correct timing porch conversion
The patch corrects porch calculation. It should
be calculated as a difference between adjacent
respective fields of drm_display_mode.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:39 +09:00
Andrzej Hajda
8e527f0187 drm/exynos: init kms poll after creation of connectors
KMS poll init helper should be run when connectors are created,
otherwise it will not schedule connection detector.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:39 +09:00
Andrzej Hajda
25928a395e drm/exynos: delay fbdev initialization until an output is connected
In case fbdev is initialized before any output is connected,
fb resolution defaults to 1024x768. After that any output with
bigger resolution is ignored and fbdev is not displayed.
The patch postpones fbdev initialization to avoid such situation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:39 +09:00
Inki Dae
d2ba65f6a1 drm/exynos: fix unnecessary resource cleanup
This patch removes unnecessary drm_mode_config_cleanup call.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2014-03-24 00:36:38 +09:00
Inki Dae
8fa04aae2a drm/exynos: hdmi: use i2c_adapter instead of i2c_client
This patch changes i2c_client for ddc to i2c_adapter
because ddc needs only i2c_adapter.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2014-03-24 00:36:38 +09:00
Inki Dae
bfe4e84c6b drm/exynos: hdmi: consider APB PHY
This patch returns error in case of using APB PHY.

Exynos5420 SoC and maybe later would use APB PHY instead of
I2C PHY so such case should be considered.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2014-03-24 00:36:38 +09:00
Sean Paul
90672f92ca drm/exynos: Remove the exynos_drm_connector shim
This path removes the exynos_drm_connector code since it was just
passing hooks through display_ops. The individual device drivers are now
responsible for implementing drm_connector directly.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:38 +09:00
Sean Paul
1634ba256d drm/exynos: Implement lvds bridge discovery to DP driver
This patch implements the lvds bridge discovery and connector pre-emption
code to the dp driver.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:37 +09:00
Sean Paul
a9fe713d7d drm/bridge: Add PTN3460 bridge driver
This patch adds a drm_bridge driver for the PTN3460 DisplayPort to LVDS
bridge chip.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:37 +09:00
Sean Paul
ce6cb556c9 drm/exynos: Implement drm_connector directly in vidi driver
This patch implements drm_connector directly in the vidi
driver, this will allow us to move away from the exynos_drm_connector
layer.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:37 +09:00
Sean Paul
caa5d1e5a3 drm/exynos: Implement drm_connector directly in dp driver
This patch implements drm_connector directly in the dp driver, this will
allow us to move away from the exynos_drm_connector layer.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:37 +09:00
Sean Paul
d9716ee33a drm/exynos: Implement drm_connector in hdmi directly
This patch implements drm_connector in the hdmi driver directly, instead
of using exynos_drm_connector.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:36 +09:00
Sean Paul
c37f42cd18 drm/exynos: Add create_connector callback
This creates a new display hook called create_connector. The purpose is
to allow the display driver to create its own drm_connector instead of
using the exynos_drm_connector. This moves things closer to completely
removing the exynos_drm_connector abstraction.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:36 +09:00
Sean Paul
af65c80487 drm/exynos: Consolidate suspend/resume in drm_drv
This patch removes all of the suspend/resume logic from the individual
drivers and consolidates it in drm_drv. This consolidation reduces the
number of functions which enable/disable the hardware to just one -- the
dpms callback. This ensures that we always power up/down in a consistent
manner.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:36 +09:00
Sean Paul
a43b933bcb drm/exynos: Clean up FIMD power on/off routines
This patch separates the fimd_activate function into poweron/poweroff
functions to be more consistent with the other drivers in exynos drm. It
also properly cleans up after failures in poweron. The functions have
also been shuffled around such that they are all in the same
spot in the file and poweron/poweroff can be called from the dpms function.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:35 +09:00
Sean Paul
12f5ad6c89 drm/exynos: Implement dpms display callback in DP
This patch implements the dpms display callback for the DP driver.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:35 +09:00
Sean Paul
1417f109a8 drm/exynos: Move display implementation into dp
This patch moves the exynos_drm_display implementation from fimd into
the dp driver. This will allow for tighter integration of the dp driver
into the exynos drm driver.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:35 +09:00
Sean Paul
2e4e678aa8 drm/exynos: Move dp driver from video/ to drm/
This patch moves the code from video/ to drm/. This is required the DP
driver needs to power on/off in the correct order in relation to fimd.
This will also allow the DP driver to participate in drm modeset as well
as provide accurate connection detection and edid.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:34 +09:00
Sean Paul
055e0c0615 drm/exynos: Remove unused/useless fimd_context members
This patch removes a few fimd_context members which are either entirely
unused or unneeded.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:34 +09:00
Sean Paul
a968e72771 drm/exynos: Use mode_set to configure fimd
This patch uses the mode passed into mode_set to configure fimd instead
of directly using the panel from context. This will allow us to move
the exynos_drm_display implementation out of fimd, where it doesn't
belong.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:34 +09:00
Sean Paul
4b4052699a drm/exynos: Implement mode_fixup manager operation
This patch adds a new manager callback for mode_fixup and pipes it
through exynos_drm_crtc. This will allow the manager drivers to
alter the mode during modeset.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:33 +09:00
Sean Paul
cd706aa8df drm/exynos: Add mode_set manager operation
This patch adds a mode_set callback to the manager operations which
sets the crtc's current mode to the manager driver. This will allow the
fimd  driver to set its mode using values from drm, instead of the dt.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:33 +09:00
Sean Paul
a9c4cd2139 drm/exynos: Disable unused crtc planes from crtc
This patch moves the code which disables unused crtc planes from the
encoder to the crtc. Since there is a 1:1 encoder/crtc mapping in
exynos, the only valid crtc change the pre-existing code could catch is
disconnecting an active crtc from the encoder. Thus it is functionally
equivalent to just disable all planes attached to a crtc when the crtc
is disabled.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:33 +09:00
Sean Paul
75626853a7 drm/exynos: Use drm_mode_copy to copy modes
This patch changes the manual copying of mode to adjusted_mode in
mode_fixup to use drm_mode_copy instead of handling things manually.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:32 +09:00
Sean Paul
f041b257a8 drm/exynos: Remove exynos_drm_hdmi shim
This patch trims exynos_drm_hdmi out of the driver. The reason it
existed in the first place was to make up for the mixture of
display/overlay/manager ops being spread across hdmi and mixer. With
that code now rationalized, mixer and hdmi map directly to
exynos_drm_crtc and exynos_drm_encoder, respectively. Since there is a
1:1 mapping, we no longer need this layer.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:32 +09:00
Daniel Kurtz
2b7681326d drm/exynos: hdmi: remove the i2c drivers and use
The i2c client was previously being passed into the hdmi driver via a
dedicated i2c driver, and then a global variable. This patch removes all
of that and just uses the device tree to get the i2c_client. This patch
also properly references the client so we don't lose it before we're
done with it.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
[seanpaul changed to phandle lookup instead of using of node name]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:32 +09:00
Sean Paul
080be03de2 drm/exynos: Split manager/display/subdrv
This patch splits display and manager from subdrv. The result is that
crtc functions can directly call into manager callbacks and encoder
functions can directly call into display callbacks. This will allow
us to remove the exynos_drm_hdmi shim and support mixer/hdmi & fimd/dp
with common code.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:31 +09:00
Sean Paul
3f283d9375 drm/exynos: Use unsigned long for possible_crtcs
Change all instances of possible_crtcs in the exynos drm driver to be
unsigned long. This matches the type used in the drm layer.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:31 +09:00
Sean Paul
558de5c138 drm/exynos: Don't keep dpms state in encoder
This patch removes the dpms state tracking in encoder. This
state is at best confusing and at worst incorrect since the display
drivers can turn on and off without propagating the value.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:30 +09:00
Sean Paul
54c40dede1 drm/exynos: Rename display_op power_on to dpms
This patch renames the display_op power_on to dpms to accurately reflect
what the function does.

The side-effect of this patch is that the new hdmi dpms callback is now
invoked twice in the dpms path. This is safe and will be dealt with when
the exynos_drm shim goes away.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:30 +09:00
Sean Paul
e5b89916bc drm/exynos: Remove dpms link between encoder/connector
This patch removes the call from encoder dpms into connector dpms (which
will then call back into encoder dpms through the helper function). The
callback is likely to keep connector->dpms in the right state when
initiating dpms from crtc or encoder, but this isn't the right way to do
it. This patch is the first step towards rationalizing power management
in the exynos drm driver.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:30 +09:00
Sean Paul
87244fa604 drm/exynos: Remove apply manager callback
This patch removes the apply() manager callback in favor of putting the
relevant commits in the individual drivers. This will mitigate some of
the difference between the suspend/resume path and the dpms path

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:29 +09:00
Sean Paul
bb7704d6a6 drm/exynos: Pass exynos_drm_manager in manager ops instead of dev
This patch changes the manager ops callbacks from accepting the subdrv
device pointer to taking a pointer to the manager. This will allow us
to move closer to decoupling manager/display from subdrv, and subsequently
decoupling the crtc/plane from the encoder.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:29 +09:00
Sean Paul
4551789fcf drm/exynos: hdmi: Implement initialize op for hdmi
This patch implements the initialize callback in the hdmi and mixer
manager. This allows us to get rid of drm_dev in the drm_hdmi level and
track it in the mixer and hdmi drivers. This is one of the things
holding back the complete removal of the drm_hdmi layer.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:28 +09:00
Sean Paul
40c8ab4bcc drm/exynos: Use manager_op initialize in fimd
This patch implements the intitialize manager op in fimd. This will
allow us to keep track of drm_dev in context instead of using subdev,
which in turn makes it easier to remove subdev from fimd.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:28 +09:00
Sean Paul
1f9cafc3ad drm/exynos: Add an initialize function to manager and display
This patch adds an initialize function to the manager and display
operations. This allows them to keep track of drm_device in their
local context, as well as adds an initialization hook right after
the encoder is created.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:27 +09:00
Sean Paul
1c6244c30e drm/exynos: Merge overlay_ops into manager_ops
This patch merges overlay_ops into manager_ops. In all cases,
overlay_ops is implemented in the same place as manager ops, it doesn't
serve a functional purpose, and doesn't make things more clear.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:27 +09:00
Shirish S
4615415288 drm/exynos: set the active aspect ratio as per mode
Now that the drm_display_mode also provides aspect
ratio for all resolutions, this patch adds its usage
to set the active aspect ratio of AVI info frame
packets as per CEA-861-D standard's Table 9.

This is also needed to abide by the 7-27
compliance test of HDMI.

Signed-off-by: Shirish S <s.shirish@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:26 +09:00
Shirish S
e1d883c0e6 drm/exynos: add phy settings for RB resolutions
This patch adds support for the below mentioned
pixel clocks in Exynos5250.
Without them, following display modes won¡¯t
be supported:

71 MHz 	- 1280x800@60Hz RB
73.25 MHz 	- 800x600@120Hz RB
88.75 MHz 	- 1440x900@60Hz RB
115.5 MHz 	- 1024x768@120Hz RB
119 MHz 	- 1680x1050@60Hz RB

Signed-off-by: Shirish S <s.shirish@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:26 +09:00
Daniel Kurtz
307ceaffb3 drm/exynos: Fix (more) freeing issues in exynos_drm_drv.c
The following commit [0] fixed a use-after-free, but left the subdrv open
in the error path.

[0] commit 6ca605f7c7
drm/exynos: Fix freeing issues in exynos_drm_drv.c

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-03-24 00:36:26 +09:00
Dave Airlie
3ea8785503 drm/helper: lock all around force mode restore
Since Daniel documented things with a sledge hammer, we got lots of
nice backtraces in suspend/resume operations, I've check the callers
of this and they all seems safe to me,

This fixes one set of warns I reported.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-22 08:05:32 +10:00
Daniel Vetter
53f1904bce drm/fb-helper: improve drm_fb_helper_initial_config locking
The locking in drm_fb_helper_initial_config is a bit troublesome for a
few reasons:

- We can't just wrap the entire function up into modeset locks since
  the fbdev registration might call down into fbcon code, which then
  through our ->set_par implementation needs to be able to grab all
  modeset locks. So we'd have a neat deadlock.

- This implies though that all current callers don't hold any modeset
  locks by necessity, so we have free reign to grab any modeset locks
  we need to grab.

- The private state of the fbdev helper doesn't need any protection
  through locks, since once we have the fbdev registered it is mostly
  invariant or protected through the modeset locking in ->set_par and
  other callbacks. We can fully rely on driver having non-racy setup
  sequences here. For the initial config computation we actually may
  not grab locks since drivers which provide their own magic sauce
  (like i915) might need to grab locks themselves.

- We should grab locks though when we probe outputs. Currently there's
  not much risk, but already now userspace could start poking at sysfs
  files and so probe concurrently. I expect that in the future driver
  init will be much more async, and since probing is really
  time-consuming this is a prime candidate.

- We must not hold any crtc->mutex locks while calling probe functions
  since those might need to lock a crtc for e.g. load detection. i915
  is such a driver.

Also it's the probing calls which hit upon piles of new locking
asserts I've recently added in

commit 62ff94a549
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 23 22:18:47 2014 +0100

    drm/crtc-helper: remove LOCKING from kerneldoc

and

commit 6395138505
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 23 15:14:15 2014 +0100

    drm/doc: Repleace LOCKING kerneldoc sections in drm_modes.c

Hence the right fix is to grab the mode_config mutex, but only that
and only right around the probe calls.

It seems to be sufficient to shut up all the locking WARNINGs I see on
i915 and nouveau in drm_fb_helper_initial_config.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-22 08:03:41 +10:00
Daniel Vetter
b182cc59a4 drm/crtc-helper: fix locking for drm_helper_disable_unused_functions
We have two calling contexts for thise function:

- In the crtc helper code itself as part of the ->set_config
  implementation. In this calling context all modeset locks are
  already held, as they should.

- In drivers not implementing fastboot before the fbdev/fbcon setup
  and initialization. This has been added for all drivers in

  commit 76a39dbfb2
  Author: Daniel Vetter <daniel.vetter@ffwll.ch>
  Date:   Sun Jan 20 23:12:54 2013 +0100

      drm/fb-helper: don't disable everything in initial_config

  In this calling context we do not hold any modeset locks since the
  immediately following call to initialize the fbev emulation grabs
  all these locks themselves.

- There are two exceptions to the above rule: shmob doesn't have fbdev
  emulation support. I've manually checked the callchain up to the
  driver load function and no kms locks are held.

The right fix therefore is to split this helper into an internal and
external version and add the required locking to the function exported
to drivers.

This remedies locking inconsistencies exposed by me adding locking
WARNs as part of the recent kerneldoc abi polishing done in

commit 62ff94a549
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 23 22:18:47 2014 +0100

    drm/crtc-helper: remove LOCKING from kerneldoc

and

commit 6395138505
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 23 15:14:15 2014 +0100

    drm/doc: Repleace LOCKING kerneldoc sections in drm_modes.c

v2: It helps when I actually git add the entire thing.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-22 08:03:19 +10:00
Dave Airlie
55004938f4 Merge branch 'gma500-next' of git://github.com/patjak/drm-gma500 into drm-next
Summary of what's included:

- SGX MMU support
- SGX IRQ handling (Page faults and blitter fences)
- Minor Cedarview and Poulsbo unification
- Work queue for ASLE interrupt work
- Various cleanups, style fixes and removal of dead code

* 'gma500-next' of git://github.com/patjak/drm-gma500:
  drm/gma500: remove stub .open/postclose
  drm/gma500: Code cleanup - inline documentation
  drm/gma500: Code cleanup - style fixes
  drm/gma500: Code cleanup - removal of centralized exiting of function
  drm/gma500/cdv: Cedarview display cleanups
  drm/gma500: Unify encoder mode fixup
  drm/gma500: Unify _get_core_freq for cdv and psb
  drm/gma500: Move asle interrupt work into a work task
  drm/gma500: Remove dead code
  drm/gma500: Add backing type and base align to psb_gem_create()
  drm/gma500: Remove unused ioctls
  drm/gma500: Always trap MMU page faults
  drm/gma500: Hook up the MMU
  drm/gma500: Add first piece of blitter code
  drm/gma500: Give MMU code it's own header file
  drm/gma500: Add support for SGX interrupts
  drm/gma500: Make SGX MMU driver actually do something
2014-03-21 09:27:07 +10:00
Dave Airlie
e84c20aff1 drm/radeon/kms: merge conflicted badly
Not sure why git didn't flag this, but the result of automerge
from 3.14-rc7 screwed up the radeon init procedure.

Reported-by: Fireburn on #radeon
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-20 11:09:10 +10:00
Dave Airlie
5a08c07526 Merge branch 'topic/core-stuff' of git://git.freedesktop.org/git/drm-intel into drm-next
Merge straggling core drm patches.

* 'topic/core-stuff' of git://git.freedesktop.org/git/drm-intel:
  drm: Fix use-after-free in the shadow-attache exit code
  drm/fb-helper: Do the 'max_conn_count' zero check
  drm: Check if the allocation has succeeded before dereferencing newmode
  drm/fb-helper: Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par()
  drm/edid: request HDMI underscan by default
2014-03-18 19:23:22 +10:00
Joonyoung Shim
7550e3668c drm/cma: remove to make sg_table when gem cma is created
The sg_table made when gem cma is created isn't used anywhere. The sgt
of struct drm_gem_cma_object will have only sg_tabel imported.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-03-18 19:20:25 +10:00
Dave Airlie
d1583c9997 Merge branch 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
This is the 3rd respin of the drm-anon patches. They allow module unloading, use
the pin_fs_* helpers recommended by Al and are rebased on top of drm-next. Note
that there are minor conflicts with the "drm-minor" branch.

* 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux:
  drm: init TTM dev_mapping in ttm_bo_device_init()
  drm: use anon-inode instead of relying on cdevs
  drm: add pseudo filesystem for shared inodes
2014-03-18 19:17:02 +10:00
Dave Airlie
bcc298bc92 Linux 3.14-rc7
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Merge tag 'v3.14-rc7' into drm-next

Linux 3.14-rc7

Backmerge to help out Intel guys.
2014-03-18 19:12:31 +10:00
Dave Airlie
978c605016 Merge branch 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm into drm-next
Here's my drm documentation update and driver api polish pull request.
Alex reviewed the entire pile, I've applied a little bit of spelling
polish in a few places since then and otherwise the Usual Suspects (David,
Rob, ...) don't seem up to have another look at it (I've poked them on
irc). So I think it's as good as it gets ;-)

Note that I've dropped the final imx breaker patch since that's blocked on
imx getting sane. Once that's landed I'll ping you to pick up that
straggler.

* 'drm-docs' of ssh://people.freedesktop.org/~danvet/drm: (34 commits)
  drm/imx: remove drm_mode_connector_detach_encoder harder
  drm: kerneldoc polish for drm_crtc.c
  drm: kerneldoc polish for drm_crtc_helper.c
  drm: drop error code for drm_helper_resume_force_mode
  drm/crtc-helper: remove LOCKING from kerneldoc
  drm: remove return value from drm_helper_mode_fill_fb_struct
  drm/doc: Fix misplaced </para>
  drm: remove drm_display_mode->private_size
  drm: polish function kerneldoc for drm_modes.[hc]
  drm/modes: drop maxPitch from drm_mode_validate_size
  drm/modes: drop return value from drm_display_mode_from_videomode
  drm/modes: remove drm_mode_height/width
  drm: extract drm_modes.h for drm_crtc.h functions
  drm: move drm_mode related functions into drm_modes.c
  drm/doc: Repleace LOCKING kerneldoc sections in drm_modes.c
  drm/doc: Integrate drm_modes.c kerneldoc
  drm/kms: rip out drm_mode_connector_detach_encoder
  drm/doc: Add function reference documentation for drm_mm.c
  drm/doc: Overview documentation for drm_mm.c
  drm/mm: Remove MM_UNUSED_TARGET
  ...
2014-03-18 19:09:10 +10:00
Daniel Vetter
e19b913714 Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next
Conflicts:
	drivers/gpu/drm/i915/Makefile

Makefile cleanup in drm-intel-next conflicts with a build-fix to move
intel_opregion under CONFIG_ACPI.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-18 09:43:56 +01:00
David Herrmann
7514409701 drm/gma500: remove stub .open/postclose
These are unused and can safely be dropped. DRM core verifies they're
non-NULL before it calls them.

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-18 00:47:09 +01:00
Arthur Borsboom
9083eb381c drm/gma500: Code cleanup - inline documentation
Improve readability by adding/changing inline documentation

Signed-off-by: Arthur Borsboom <arthurborsboom@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:14:10 +01:00
Arthur Borsboom
f90cd811ae drm/gma500: Code cleanup - style fixes
Code cleanup by following i915 constant/variable names and ordering
Code cleanup by following directions from kernel doc: Codingstyle
Code cleanup by following directions from kernel doc: DRM

Signed-off-by: Arthur Borsboom <arthurborsboom@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:14:08 +01:00
Arthur Borsboom
af3765c764 drm/gma500: Code cleanup - removal of centralized exiting of function
Removed centralized exiting of function (goto statement), since it was
the only used in one single location with only a return statement.

Signed-off-by: Arthur Borsboom <arthurborsboom@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:14:06 +01:00
Patrik Jakobsson
e85cbbf914 drm/gma500/cdv: Cedarview display cleanups
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:14:03 +01:00
Patrik Jakobsson
19519943ef drm/gma500: Unify encoder mode fixup
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:14:01 +01:00
Patrik Jakobsson
f35257a3fe drm/gma500: Unify _get_core_freq for cdv and psb
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:13:24 +01:00
Patrik Jakobsson
778e26dee5 drm/gma500: Move asle interrupt work into a work task
Previously the backlight code was called from IRQ context which isn't
allowed. This patch moves all the asle work into a work task which takes
care of the locking bug reported by users.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64221
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:12:04 +01:00
Thierry Reding
c7829b29e9 drm/gma500: Remove dead code
The gma500 driver sets DRIVER_GEM unconditionally, so testing for the
absence of the feature will always fail.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:12:02 +01:00
Patrik Jakobsson
c269c6852b drm/gma500: Add backing type and base align to psb_gem_create()
We'll need this for our gem create ioctl in a later patch.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:59 +01:00
Patrik Jakobsson
ae0b931881 drm/gma500: Remove unused ioctls
All of these ioctls are unused and most of them just duplicate what drm
already provides.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:57 +01:00
Patrik Jakobsson
8f3948729d drm/gma500: Always trap MMU page faults
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:55 +01:00
Patrik Jakobsson
ae012bdc57 drm/gma500: Hook up the MMU
Properly init the MMU and add MMU entries when adding GTT entries

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:53 +01:00
Patrik Jakobsson
1c6b5d17d6 drm/gma500: Add first piece of blitter code
Right now, all we need to know about the blitter is that it's not doing
anything that can be messed up when fiddling with MMU mappings.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:51 +01:00
Patrik Jakobsson
ac1b01b0ba drm/gma500: Give MMU code it's own header file
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:48 +01:00
Patrik Jakobsson
64a4aff283 drm/gma500: Add support for SGX interrupts
Add 2D blit status and MMU fault interrupts to the IRQ handler.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:11:38 +01:00
Patrik Jakobsson
b219372dff drm/gma500: Make SGX MMU driver actually do something
Old MMU code never wrote PDs or PTEs to any registers. Now we do, and
that's a good start.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
2014-03-17 20:04:01 +01:00
Daniel Vetter
c94adc4a65 drm: Fix use-after-free in the shadow-attache exit code
This regression has been introduced in

commit b3f2333de8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Dec 11 11:34:31 2013 +0100

    drm: restrict the device list for shadow attached drivers

Reported-by: Dave Jones <davej@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
2014-03-17 11:23:31 +01:00
Xiubo Li
04cfe97eb1 drm/fb-helper: Do the 'max_conn_count' zero check
Since we cannot make sure the 'max_conn_count' will always be none
zero from the users, and then if max_conn_count equals to zero, the
kcalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16).

So this patch fix this with just doing the 'max_conn_count' zero check
in the front of drm_fb_helper_init().

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
CC: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-17 11:23:08 +01:00
Damien Lespiau
409bbf1e3d drm: Check if the allocation has succeeded before dereferencing newmode
We allocate memory in drm_display_mode_from_vic_index() and use it
without checking the pointer is valid. Fix that.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-17 11:23:07 +01:00
Ville Syrjälä
366d480700 drm/fb-helper: Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par()
Use drm_fb_helper_restore_fbdev_mode() in drm_fb_helper_set_par() to
make sure extra planes get disabled whenever fbcon takes over.

Otherwise the code in drm_fb_helper_set_par() was already doing the
exact same thing as drm_fb_helper_restore_fbdev_mode(), so this doesn't
change the behaviour in any other way.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-17 11:23:07 +01:00
Dave Airlie
e40d641099 Merge branch 'drm-minor' of git://people.freedesktop.org/~dvdhrm/linux into drm-next
This series contains several cleanups for the DRM-minor handling. All but the
last one reviewed by Daniel and tested by Thierry. Initially, the series
included patches to convert minor-handling to a common base-ID, but have
been NACKed by Daniel so I dropped them and only included the main part in the
last patch. With this in place, drm_global_mutex is no longer needed for
minor-handling (but still for device unregistration..).
There are some pending patches that try to remove the global mutex entirely, but
they need some more reviews and thus are not included.
* 'drm-minor' of git://people.freedesktop.org/~dvdhrm/linux:
  drm: make minors independent of global lock
  drm: inline drm_minor_get_id()
  drm: coding-style fixes in minor handling
  drm: remove redundant minor->device field
  drm: remove unneeded #ifdef CONFIG_DEBUGFS
  drm: rename drm_unplug/get_minor() to drm_minor_register/unregister()
  drm: move drm_put_minor() to drm_minor_free()
  drm: allocate minors early
  drm: add minor-lookup/release helpers
  drm: provide device-refcount
  drm: turn DRM_MINOR_* into enum
  drm: remove unused DRM_MINOR_UNASSIGNED
  drm: skip redundant minor-lookup in open path
  drm: group dev-lifetime related members
2014-03-17 12:29:29 +10:00
David Herrmann
07b48c3ac5 Merge branch 'drm-minor' into drm-next
Fix minor conflicts with drm-anon:
 - allocation/free order
 - drm_device header cleanups
2014-03-16 13:13:51 +01:00
David Herrmann
afab4463ac Merge branch 'drm-anon' into drm-next 2014-03-16 13:04:11 +01:00
David Herrmann
0d639883ee drm: make minors independent of global lock
We used to protect minor-lookup and setup by the global drm lock. To
continue our attempts of dropping drm_global_mutex, this patch makes the
minor management independent of it. Furthermore, we make it all atomic and
switch to spin-locks instead of a mutex.

Now that minor-lookup is independent, we also move the
"drm_is_unplugged()" test into the minor-lookup path. There is no reason
to ever return a minor for unplugged objects, so keep that logic internal.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
2014-03-16 12:54:21 +01:00
David Herrmann
7d86cf1a4f drm: inline drm_minor_get_id()
We can significantly simplify this helper by using plain multiplication.
Note that we converted the minor-type to an enum earlier so this didn't
work before.

We also fix a minor range-bug here: the limit argument of idr_alloc() is
*exclusive*, not inclusive, so we should use 64 instead of 63 as offset.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
2014-03-16 12:25:19 +01:00