- Y tiling support for scanout from Tvrtko&Damien
- Remove more UMS support
- some small prep patches for OLR removal from John Harrison
- first few patches for dynamic pagetable allocation from Ben Widawsky, rebased
by tons of other people
- DRRS support patches (Sonika&Vandana)
- fbc patches from Paulo
- make sure our vblank callbacks aren't called when the pipes are off
- various patches all over
* tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel: (61 commits)
drm/i915: Update DRIVER_DATE to 20150227
drm/i915: Clarify obj->map_and_fenceable
drm/i915/skl: Allow Y (and Yf) frame buffer creation
drm/i915/skl: Update watermarks for Y tiling
drm/i915/skl: Updated watermark programming
drm/i915/skl: Adjust get_plane_config() to support Yb/Yf tiling
drm/i915/skl: Teach pin_and_fence_fb_obj() about Y tiling constraints
drm/i915/skl: Adjust intel_fb_align_height() for Yb/Yf tiling
drm/i915/skl: Allow scanning out Y and Yf fbs
drm/i915/skl: Add new displayable tiling formats
drm/i915: Remove DRIVER_MODESET checks from modeset code
drm/i915: Remove regfile code&data for UMS suspend/resume
drm/i915: Remove DRIVER_MODESET checks from gem code
drm/i915: Remove DRIVER_MODESET checks in the gpu reset code
drm/i915: Remove DRIVER_MODESET checks from suspend/resume code
drm/i915: Remove DRIVER_MODESET checks in load/unload/close code
drm/i915: fix a printk format
drm/i915: Add media rc6 residency file to sysfs
drm/i915: Add missing description to parameter in alloc_pt_range
drm/i915: Removed the read of RP_STATE_CAP from sysfs/debugfs functions
...
Use cases like rotation require these hooks to have some context so they
know how to prepare and cleanup the frame buffer correctly.
For i915 specifically, object backing pages need to be mapped differently
for different rotation modes and the driver needs to know which mapping to
instantiate and which to tear down when transitioning between them.
v2: Made passed in states const. (Daniel Vetter)
[airlied: add mdp5 and atmel fixups]
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- use the atomic helpers for plane_upate/disable hooks (Matt Roper)
- refactor the initial plane config code (Damien)
- ppgtt prep patches for dynamic pagetable alloc (Ben Widawsky, reworked and
rebased by a lot of other people)
- framebuffer modifier support from Tvrtko Ursulin, drm core code from Rob Clark
- piles of workaround patches for skl from Damien and Nick Hoath
- vGPU support for xengt on the client side (Yu Zhang)
- and the usual smaller things all over
* tag 'drm-intel-next-2015-02-14' of git://anongit.freedesktop.org/drm-intel: (88 commits)
drm/i915: Update DRIVER_DATE to 20150214
drm/i915: Remove references to previously removed UMS config option
drm/i915/skl: Use a LRI for WaDisableDgMirrorFixInHalfSliceChicken5
drm/i915/skl: Fix always true comparison in a revision id check
drm/i915/skl: Implement WaEnableLbsSlaRetryTimerDecrement
drm/i915/skl: Implement WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken
drm/i915: Add process identifier to requests
drm/i915/skl: Implement WaBarrierPerformanceFixDisable
drm/i915/skl: Implement WaCcsTlbPrefetchDisable:skl
drm/i915/skl: Implement WaDisableChickenBitTSGBarrierAckForFFSliceCS
drm/i915/skl: Implement WaDisableHDCInvalidation
drm/i915/skl: Implement WaDisableLSQCROPERFforOCL
drm/i915/skl: Implement WaDisablePartialResolveInVc
drm/i915/skl: Introduce a SKL specific init_workarounds()
drm/i915/skl: Document that we implement WaRsClearFWBitsAtReset
drm/i915/skl: Implement WaSetGAPSunitClckGateDisable
drm/i915/skl: Make the init clock gating function skylake specific
drm/i915/skl: Provide a gen9 specific init_render_ring()
drm/i915/skl: Document the WM read latency W/A with its name
drm/i915/skl: Also detect eDRAM on SKL
...
This pull request includes:
- support for Atomic mode setting
- the discard area optimization
- implementation of PM primitives
* 'drm-atmel-hlcdc-devel' of git://github.com/bbrezillon/linux-at91:
drm: atmel-hlcdc: Add pinctrl PM select sleep,default state in CRTC suspend/resume
drm: atmel-hlcdc: Add PM suspend/resume support
drm: atmel-hlcdc: add discard area support
drm: atmel-hlcdc: Atomic mode-setting conversion
A number of TDA998x updates for the next merge window. Patches
included in this set are:
* adding support for finding the attached CRTCs from DT
* a fix function name mis-spelling in a dev_err()
* simplify the EDID reading by using the drm_do_get_edid() function
instead of coding this ourselves.
* 'drm-tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
drm/i2c: tda998x: use drm_do_get_edid()
drm/i2c: tda998x: fix misspelling of current function in string
drm/i2c: tda998x: add OF support for finding attached CRTCs
The plane allocator has been inherently racy since the beginning of the
transition to atomic updates, as the allocator lock is released between
free plane check (at .atomic_check() time) and the reservation (at
.atomic_update() time).
To fix it, create a new allocator solely based on the atomic plane
states without keeping any external state and perform allocation in the
.atomic_check() handler. The core idea is to replace the free planes
bitmask with a collective knowledge based on the allocated hardware
plane(s) for each KMS plane. The allocator then loops over all plane
states to compute the free planes bitmask, allocates hardware planes
based on that bitmask, and stores the result back in the plane states.
For this to work we need to access the current state of planes not
touched by the atomic update. To ensure that it won't be modified, we
need to lock all planes using drm_atomic_get_plane_state(). This
effectively serializes atomic updates from .atomic_check() up to
completion, either when swapping the states if the check step has
succeeded, or when freeing the states if the check step has failed.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Only the planes to CRTCs association control register DPTSR needs to be
protected by custom locking, don't hold the mutex around the whole code.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
As the DRM core will commit plane states when performing atomic updates,
those don't need to be committed manually when the CRTC is started except
in the system resume code path.
However, the atomic plane commit step is currently performed between
mode set disable and mode set enable to mimick the legacy mode setting
operations order. This causes the device clocks to be disabled after
applying plane settings and reenabled when enabling the CRTC,
potentially losing hardware in between.
Reorder the operations to enable the CRTC first and only then apply
plane settings, removing the need to manage clocks in the atomic begin
and flush handlers. We can then move the plane state commit code out of
the CRTC start handler to the system resume handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The format stored in the rcar_du_plane structure is part of the plane
state. Move it to the rcar_du_plane_state structure and precompute it in
the .atomic_check() handler.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The rcar_du_crtc plane field is only used to check for an error that
can't occur. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The crtc and enabled fields duplicates information stored in the plane
state. Use the plane state instead and remove the fields.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Now that the plane setup code isn't called outside of the plane
implementation, it can be simplified by merging the
rcar_du_plane_compute_base() and rcar_du_plane_update_base() functions.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Allow setting up plane properties atomically using the plane
set_property atomic helper. The properties are now stored in the plane
state (requiring subclassing it) and applied when updating the planes.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The atomic page flip helper implements the page flip operation using
asynchronous commits.
As the legacy page flip was the last CRTC operation that needed direct
access to plane setup, the plane setup functions can now become private
to the plane implementation.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Implement a custom .atomic_commit() handler that supports asynchronous
commits using a work queue. This can be used for userspace-driven
asynchronous commits, as well as for an atomic page flip implementation.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The encoder .mode_fixup() operation is legacy, atomic updates uses the
new .atomic_check() operation. Convert the encoders drivers.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The atomic connector DPMS helper implements the connector DPMS operation
using atomic commit, removing the need for DPMS helper operations on
CRTCs and encoders.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This removes the legacy mode config code. The CRTC and encoder prepare
and commit operations are not used anymore, remove them.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
This removes the legacy plane update code. Wire up the default atomic
check and atomic commit mode config helpers as needed by the plane
update atomic helpers.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
When using atomic updates the CRTC .enable() and .disable() helper
operations are preferred over the (then legacy) .prepare() and .commit()
operations. Implement .enable() and rework .disable() to not depend on
DPMS, easing DPMS removal later on.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
When using atomic updates the encoder .enable() and .disable() helper
operations are preferred over the (then legacy) .prepare() and .commit()
operations. Implement .enable() and .disable() and rework .prepare(),
.commit() and .dpms() as wrappers around .enable() and .disable(),
easing their future removal.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
When using atomic updates the encoder .enable() and .disable() helper
operations are preferred over the (then legacy) .prepare() and .commit()
operations. Implement .enable() and .disable() and rework .prepare(),
.commit() and .dpms() as wrappers around .enable() and .disable(),
easing their future removal.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The LVDS encoder doesn't support DPMS states, replace the DPMS operation
by enable/disable to avoid propagating DPMS states down to the encoder
code.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The plane source and destination size and positions are stored in the
plane state, and a private copy is kept in the rcar_du_plane objects.
Remove the private copy as it just duplicates the state.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Hook up the default .reset(), .atomic_duplicate_state() and
.atomic_free_state() helpers to ensure that state objects are properly
created and destroyed, and call drm_mode_config_reset() at init time to
create the initial state objects.
Framebuffer reference count also gets maintained automatically by the
transitional helpers except for the legacy page flip operation. Maintain
it explicitly there.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Use the new CRTC atomic transitional helpers drm_helper_crtc_mode_set()
and drm_helper_crtc_mode_set_base() to implement the CRTC .mode_set and
.mode_set_base operations. This delegates primary plane configuration to
the plane .atomic_update and .atomic_disable operations, removing
duplicate code from the CRTC implementation.
There is now no code path available to the driver in which to drop the
reference to the CRTC acquired in the .prepare() operation if an error
then occurs. The driver thus now leaks a reference if an error occurs
during mode set. So be it, this will be fixed in a further step of the
atomic update transition.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Implement the CRTC .atomic_begin() and .atomic_flush() operations, the
plane .atomic_check(), .atomic_update() and operations, and use the
transitional atomic helpers to implement the plane update and disable
operations on top of the new atomic operations.
The plane setup code can't be moved out of the CRTC start function
completely yet, as the atomic code paths are not taken every time the
CRTC needs to be started. This results in some code duplication that
will be fixed after switching to atomic updates completely.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The hardware plane allocator loops over all planes to find free
candidates. However, instead of looping over the number of hardware
planes, it loops over the number of software planes, which happens to be
larger by one unit. This has no effect in practise as the extra plane is
always cleared in the mask of free planes, but it should still be fixed
for correctness.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Explicitly create the CRTC primary plane instead of relying on the core
helpers to do so. This simplifies the plane logic by merging the KMS and
software planes.
Reject plane API operations on the primary planes for now, as that code
will anyway be refactored when implementing support for atomic updates.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Let's avoid magic constants. Beside increasing code readability, it will
also ensure that no location will be forgotten when raising the maximum
number of groups, CRTCs or LVDS encoders
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
fbdev emulation requires at least one connector, and will fail to
initialize if no connector has been successfully instantiated. Disable
it in that case and print an informational message instead of failing
probe with a confusing fbdev emulation error message.
It could be argued that probe should fail when no connector is present,
but the DU could still be useful in that case with the to-be-implemented
memory write-back support.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The DRM core vblank handling mechanism requires drivers to forcefully
turn vblank reporting off when disabling the CRTC, and to restore the
vblank reporting status when enabling the CRTC.
Implement this using the drm_crtc_vblank_on/off helpers. When disabling
vblank we must first wait for page flips to complete, so implement page
flip completion wait as well.
Finally, drm_crtc_vblank_off() must be called at startup to synchronize
the state of the vblank core code with the hardware, which is initially
disabled. This is performed at CRTC creation time, requiring vertical
blanking to be initialized before creating CRTCs.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Turning a CRTC off will prevent a queued page flip from ever completing,
potentially confusing userspace. Wait for queued page flips to complete
before turning the CRTC off to avoid this.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The next commit will need functions to be reordered to avoid forward
declarations. Do it separately to help review.
This only moves functions without any change to the code.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The drm_connector encoder field points to the encoder driving the
connector. No such association exists at init time, as all pipelines are
disabled. Don't set the field.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
The function is meant to restore the fbdev mode in the lastclose
handler, not to be called at init time. Remove the call.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
For an object right on the boundary of mappable space, as the fenceable
size is stricly greater than the actual size, its fence region may extend
out of mappable space.
Note that only pnv/g33 has fence_size > obj.size and an unmappable
range in the gtt, and there alignment constraints prevent bad things
from happening.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Clarify why this shouldn't change anything as per the
discussion on intel-gfx.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
By this patch all underlying bits have been implemented and this
patch actually enables the feature.
v2: Validate passed in fb modifiers to reject garbage. (Daniel Vetter)
v3: Rearrange validation checks per code review comments. (Daniel Vetter)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Display watermarks need different programming for different tiling
modes.
Set the relevant flag so this happens during the plane commit and
add relevant data into a structure made available to the watermark
computation code.
v2: Pass in tiling info to sprite plane updates as well.
v3: Rebased for plane handling changes.
v4: Handle fb == NULL when plane is disabled.
v5: Refactored for addfb2 interface.
v6: Refactored for fb modifier changes.
v7: Updated for atomic commit by only updating watermarks when tiling changes.
v8: BSpec watermark calculation updates.
v9: Restrict scope of y_tile_minimum variable. (Damien Lespiau)
v10: Get fb from plane state otherwise we are working on old state.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Acked-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> (v9)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Recent BSpect updates have changed the watermark calculation to avoid
display flickering in some cases.
v2: Fix check against DDB allocation and tidy the code a bit. (Damien Lespiau)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We now need the bpp of the fb as Yf tiling has different tile widths
depending on it.
v2: Rebased for the new addfb2 interface. (Tvrtko Ursulin)
v3: Rebased for fb modifier changes. (Tvrtko Ursulin)
v4: Added missing case and 128-bit pixel warning. (Damien Lespiau)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> (v3)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Skylake is able to scannout those tiling formats. We need to allow them
in the ADDFB ioctl and tell the harware about it.
v2: Rebased for addfb2 interface. (Tvrtko Ursulin)
v3: Rebased for fb modifier changes. (Tvrtko Ursulin)
v4: Don't allow Y tiled fbs just yet. (Tvrtko Ursulin)
v5: Check for stride alignment and max pitch. (Tvrtko Ursulin)
v6: Simplify maximum pitch check. (Ville Syrjälä)
v7: Drop the gen9 check since requirements are no different. (Ville Syrjälä)
v8: Gen2 has different X tiling stride. (Ville Syrjälä)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> (v7)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Starting with SKL display engine can scan out Y, and newly introduced Yf
tiling formats so add the latter to the frame buffer modifier space.
v2: Definitions moved to drm_fourcc.h.
v3: Try to document the format better.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Mostly just checks in i915-private modeset ioctls.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Lots of lines to remove!
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[danvet: Fixup makefile.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
