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The enable/disable/etc. encoder hooks aren't supposed to alter the
state(s), so pass them as const. Unfortunately C lacks any kind of deep
const thingy, so this can't catch all abuses. But at least it acts as a
hint to the reader telling them not to mess about with the state(s).
v2: Update intel_tv_mode_find() and ironlake_edp_pll_on() as well
v3: Deal with intel_sdvo_connector_state
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818134958.15502-9-ville.syrjala@linux.intel.com
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The PSR enable/disable need to know things about the crtc state, so
plumb it through. This will become even more important when we start
to reuse the generic infoframe code for the VSC DIP programming as the
infoframe code wants the crtc state as well.
v2: Fix kernel docs
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818134958.15502-7-ville.syrjala@linux.intel.com
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DP ports may want to use the video DIP for SDP transmission, so let's
initialize the vfuncs for DP encoders as well. The only exception is
port A eDP prior to HSW as that one doesn't have a video DIP instance.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818134958.15502-6-ville.syrjala@linux.intel.com
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DP ports will also want to utilize the video DIP for SDP transmission.
So let's move the vfuncs into the dig_port.
v2: Rebase due to DDI changes
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818134958.15502-5-ville.syrjala@linux.intel.com
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Expose across driver for future work. No functional changes.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818093020.19160-2-jani.nikula@intel.com
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Emphasize that this is based on the port, not intel_dp. This is also in
line with the underlying intel_bios_is_port_edp() function. No
functional changes.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170818093020.19160-1-jani.nikula@intel.com
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Some fixed resolution panels actually support more than one mode,
with the only thing different being the refresh rate. Having this
alternate mode available to us is desirable, because it allows us to
test PSR on panels whose setup time at the preferred mode is too long.
With this patch we allow the use of the alternate mode if it's
available and it was specifically requested.
v2 and v3: Rebase
v4: * Fix up some leaky mode stuff (Chris)
* Rebase
v5: * Fix a NULL pointer derefrence (David Weinehall)
v6: * Whitespace / spelling / checkpatch clean-up; no functional
change. (David)
* Rebase
Cc: David Weinehall <david.weinehall@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
Signed-off-by: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1502308133-26892-1-git-send-email-jim.bride@linux.intel.com
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This was based on a patch originally by Kristian. It has been modified
pretty heavily to use the new callbacks from the previous patch.
v2:
- Add LINEAR and Yf modifiers to list (Ville)
- Combine i8xx and i965 into one list of formats (Ville)
- Allow 1010102 formats for Y/Yf tiled (Ville)
v3:
- Handle cursor formats (Ville)
- Put handling for LINEAR in the mod_support functions (Ville)
v4:
- List each modifier explicitly in supported modifiers (Ville)
- Handle the CURSOR plane (Ville)
v5:
- Split out cursor and sprite handling (Ville)
v6:
- Actually use the sprite funcs (Emil)
- Use unreachable (Emil)
v7:
- Only allow Intel modifiers and LINEAR (Ben)
v8
- Fix spite assert introduced in v6 (Daniel)
v9
- Change vendor check logic to avoid magic 56 (Emil)
- Reorder skl_mod_support (Ville)
- make intel_plane_funcs static, could be done as of v5 (Ville)
- rename local variable intel_format_modifiers to modifiers (Ville)
- actually use sprite modifiers
- split out modifier/formats by platform (Ville)
v10:
- Undo vendor check from v9
v11:
- Squash CCS advertisement into this patch (daniels)
- Don't advertise CCS on higher sprite planes (daniels)
v12:
- Don't advertise Y-tiled or CCS on any sprite planes, since we don't
allocate enough DDB space for it to work. (daniels)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> (v8)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Stone <daniels@collabora.com>
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Ben Widawsky/Daniel Stone need the extended modifier support from
drm-misc to be able to merge CCS support for i915.ko
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The driver stores lut values from the fbdev interface, and is able
to give them back, but does not appear to do anything with these
lut values. The generic fb helpers have replaced this function,
and may even have made the driver work for the C8 mode from the
fbdev interface. But that is untested.
Since the fb helpers .gamma_set and .gamma_get are obsolete,
remove the dead code.
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170713162538.22788-10-peda@axentia.se
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This patch checks encoder level support for YCBCR420 outputs.
The logic goes as simple as this:
If the input mode is YCBCR420-only mode: prepare HDMI for
YCBCR420 output, else continue with RGB output mode.
It checks if the mode is YCBCR420 and source can support this
output then it marks the ycbcr_420 output indicator into crtc
state, for further staging in driver.
V2: Split the patch into two, kept helper functions in DRM layer.
V3: Changed the compute_config function based on new DRM API.
V4: Rebase
V5: Rebase
V6: Check and handle YCBCR420-only modes, discard the property
based approach (Ville)
V7: Addressed review comments from Ville
- add else case in 12BPC check.
- extract ycbcr420 state inside hdmi_12bpc_possible function.
V8: Addressed review comments from Ville
- Remove extra blank lines.
- Remove "HDMI" from the description of ycbcr420 state variable.
- Remove local variable, use crtc_state->ycbcr420 instead.
Added r-b from Ville.
V9: Rebase
V10: Added r-b from Imre
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500650709-14447-2-git-send-email-shashank.sharma@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The pattern of a power well backing a set of pipe IRQ or VGA
functionality applies to all HSW+ platforms. Using power well attributes
instead of platform checks to decide whether to init/reset pipe IRQs and
VGA correspondingly is cleaner and it allows us to unify the HSW/BDW and
GEN9+ power well code in follow-up patches.
Also use u8 for pipe_mask in related helpers to match the type in the
power well struct.
v2:
- Use u8 instead of u32 for irq_pipe_mask. (Ville)
v3:
- Use u8 for pipe_mask in related helpers too for clarity.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170712155413.29839-1-imre.deak@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The core already does this in setup_commit(). With this we can also
remove the unpin_work_count since it's the last user, and also remove
the loop since that was only used for stalling against legacy flips.
v2: Amend commit message a bit (Chris).
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170720175754.30751-8-daniel.vetter@ffwll.ch
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This gets rid of all the interactions between the legacy flip code and
the modeset code. Yay!
This highlights an ommission in the atomic paths, where we fail to
apply a boost to the pending rendering when we miss the target vblank.
But the existing code is still dead and can be removed.
v2: Note that the boosting doesn't work in atomic (Chris).
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170720175754.30751-7-daniel.vetter@ffwll.ch
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All these races and things are now solved through the vblank evasion
trick, plus event handling is done using normal vblank even processing
and drm_crtc_arm_vblank_event. We can get rid of all this complexity.
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170720175754.30751-5-daniel.vetter@ffwll.ch
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First thing we need to do is unregister the fbdev instance, but we
can't just go ahead and kfree it. That must wait until the hotplug and
polling work are stopped, since they can race with the with the
teardown. That means we need to split up the fbdev teardown into the
unregister part and the cleanup part.
I originally suspected that this was broken in one of the unload
shuffles, but on closer inspection the oldest sequence I've dug out
also gets this wrong. Just not quite so badly.
I've run drv_module_reload a few hundred times and it's rock solid
compared to insta-death beforehand. This bug seems to have been
uncovered by
commit 88be58be886f1215cc73dc8c273c985eecd7385c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Thu Jul 6 15:00:19 2017 +0200
drm/i915/fbdev: Always forward hotplug events
But the effect of that seems to only be to increase the race window
enough to make it blow up easier. I'm not exactly clear on what's
going on there ...
v2: Fix whitespace and use fetch_and_zero (Chris).
Testcase: igt/drv_module_reload
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101791
Cc: martin.peres@free.fr
Cc: chris@chris-wilson.co.uk
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170714224656.6431-2-daniel.vetter@ffwll.ch
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The current code uses in some instances enum transcoder for PCH
transcoders and enum pipe in others. This is error prone and clang
raises warnings like this:
drivers/gpu/drm/i915/intel_dp.c:3546:51: warning: implicit conversion
from enumeration type 'enum pipe' to different enumeration type
'enum transcoder' [-Wenum-conversion]
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);
Consistently use the type enum pipe for PCH transcoders.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170717181403.57324-1-mka@chromium.org
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Resync with the main drm-next pull request for 4.13. What we really
need is to fully resync with pending drm-misc, but that's not yet
possible due to the still ongoing merge window.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Once a client has requested a waitboost, we keep that waitboost active
until all clients are no longer waiting. This is because we don't
distinguish which waiter deserves the boost. However, with the advent of
fence signaling, the signaler threads appear as waiters to the RPS
interrupt handler. So instead of using a single boolean to track when to
keep the waitboost active, use a counter of all outstanding waitboosted
requests.
At this point, I have removed all vestiges of the rate limiting on
clients. Whilst this means that compositors should remain more fluid,
it also means that boosts are more prevalent. See commit b29c19b64528
("drm/i915: Boost RPS frequency for CPU stalls") for a longer discussion
on the pros and cons of both approaches.
A drawback of this implementation is that it requires constant request
submission to keep the waitboost trimmed (as it is now cancelled when the
request is completed). This will be fine for a busy system, but near
idle the boosts may be kept for longer than desired (effectively tens of
vblanks worstcase) and there is a reliance on rc6 instead.
v2: Remove defunct rps.client_lock
Reported-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170628123548.9236-1-chris@chris-wilson.co.uk
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Final pile of features for 4.13
New uabi:
- batch bo in first slot, for faster execbuf assembly in userspace
(Chris Wilson)
- (sub)slice getparam, needed for mesa perf support (Robert Bragg)
First pile of patches for cnl/cfl support, maintained by Rodrigo but
with lots of contributions from others. Still incomplete since public
review still ongoing.
Features/refactoring:
- Make execbuf faster (Chris Wilson), a pile of series to make execbuf
buffer handling have fewer passes, use less list walking, postpone
more work to async workers and shuffle buffers less, all to make the
common case much faster (in some cases at least).
- cold boot support for glk dsi (Madhav Chauhan)
- Clean up pipe A quirk and related old platform hacks (Ville)
- perf sampling support for kbl/glk (Lionel)
- perf cleanups (Robert Bragg)
- wire atomic state to backlight code, to avoid pipe lookup hacks
(Maarten)
- reduce request waiting latency/overhead to remove the spinning and
associated cpu cycle wasting (Chris)
- fix 90/270 rotation wm computation (Ville)
- new ddb allocation algo for skl (Kumar Mahesh)
- fix regression due to system suspend optimiazatino (Imre)
- the usual pile of small cleanups and refactors all over
GVT updates contained in this tag:
- optimization for per-VM mmio save/restore (Changbin)
- optimization for mmio hash table (Changbin)
- scheduler optimization with event (Ping)
- vGPU reset refinement (Fred)
- other misc refactor and cleanups, etc.
* tag 'drm-intel-next-2017-06-19' of git://anongit.freedesktop.org/git/drm-intel: (170 commits)
drm/i915: Update DRIVER_DATE to 20170619
drm/i915/cfl: Introduce Coffee Lake workarounds.
drm/i915: Store 9 bits of PCI Device ID for platforms with a LP PCH
drm/i915: Stash a pointer to the obj's resv in the vma
drm/i915: Async GPU relocation processing
drm/i915: Allow execbuffer to use the first object as the batch
drm/i915: Wait upon userptr get-user-pages within execbuffer
drm/i915: First try the previous execbuffer location
drm/i915: Store a persistent reference for an object in the execbuffer cache
drm/i915: Eliminate lots of iterations over the execobjects array
drm/i915: Disable EXEC_OBJECT_ASYNC when doing relocations
drm/i915: Pass vma to relocate entry
drm/i915: Store a direct lookup from object handle to vma
drm/i915: Fix retrieval of hangcheck stats
drm/i915: Store i915_gem_object_is_coherent() as a bit next to cache-dirty
drm/i915: Mark CPU cache as dirty on every transition for CPU writes
drm/i915: Make i915_vma_destroy() static
drm/i915: Actually attach the tv_format property to the SDVO connector
Revert "drm/i915/skl: New ddb allocation algorithm"
drm/i915/glk: Add cold boot sequence for GLK DSI
...
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Linux 4.12-rc5 for nouveau fixes
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830 more or less requires both pipes and DPLLs to remain on as long
as either pipe is needed. However, when neither pipe is actually needed,
we can save a bit of power by turning everything off. To do that we add
a new "power well" that turns both pipes and DPLLs on and off in the
right order. Seems to save ~50mW on my Fujitsu-Siemens Lifebook S6010.
This also avoids having to abuse the load detection to force pipe A on
at init time. That was never very robust, and it only worked for one
pipe, whereas 830 really needs both pipes enabled. As a bonus the 830
pipe quirk is now a bit more isolated from the rest of the mode setting
infrastructure, which should mean that it's much less likely someone
will accidentally break it in the future. The extra cost is of course
slight code duplication, but that seems like a worthwile tradeoff here.
v2; s/BIT/BIT_ULL/
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-5-ville.syrjala@linux.intel.com
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Implement the CNL display init/uninit sequence as outlined in Bspec.
Quite similar to SKL/BXT. The main complicaiton is probably the extra
procmon setup we must do based on the process/voltage information we
can read out from some register.
v2: s/skl_dbuf/gen9_dbuf/ to follow upstream
bxt needed a cdclk sanitize step, so let's add it for cnl too
v3: s/CHICKEN_MISC_1/CHICKEN_MISC_2/ (Ander)
v4: Rebased by Rodrigo after Ville's cdclk rework
v5: Removed unecessary Aux IO forced enable/disable, Fix DW10 setup
Fix procpon Mask. (Credits-to Paulo and Clint)
Remove A0 workaround.
v6: Rebased on top of recent code (Rodrigo).
v7: Respect the order of sanitize_ after set_
(Done by Rodrigo, Requested by Ville)
v8: Commit message updated to matvh v5 changes besides
Remove unused DW8 and an extra blank line. (all noticed
by Imre).
v9: Remove __attribute__((unused)) added on latest version
of drm/i915/cnl: Implement .set_cdclk() for CNL.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1497047175-27250-3-git-send-email-rodrigo.vivi@intel.com
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Pass crtc_state to the enable callback, and connector_state to all callbacks.
This will eliminate the need to guess for the correct pipe in these
callbacks.
The crtc state is required for pch_enable_backlight to obtain the correct
cpu_transcoder.
intel_dp_aux_backlight's setup function is called before hw readout, so
crtc_state and connector_state->best_encoder are NULL in the enable()
and set() callbacks.
This fixes the following series of warns from intel_get_pipe_from_connector:
[ 219.968428] ------------[ cut here ]------------
[ 219.968481] WARNING: CPU: 3 PID: 2457 at
drivers/gpu/drm/i915/intel_display.c:13881
intel_get_pipe_from_connector+0x62/0x90 [i915]
[ 219.968483]
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex))
[ 219.968485] Modules linked in: nls_iso8859_1 snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec
snd_hda_core snd_hwdep snd_pcm intel_rapl x86_pkg_temp_thermal coretemp
kvm_intel snd_seq_midi snd_seq_midi_event kvm snd_rawmidi irqbypass
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_seq
snd_seq_device serio_raw snd_timer aesni_intel aes_x86_64 crypto_simd
glue_helper cryptd lpc_ich snd mei_me shpchp soundcore mei rfkill_gpio
mac_hid intel_pmc_ipc parport_pc ppdev lp parport ip_tables x_tables
autofs4 hid_generic usbhid igb ahci i915 xhci_pci dca xhci_hcd ptp
sdhci_pci sdhci libahci pps_core i2c_hid hid video
[ 219.968573] CPU: 3 PID: 2457 Comm: kworker/u8:3 Tainted: G W
4.10.0-tip-201703010159+ #2
[ 219.968575] Hardware name: Intel Corp. Broxton P/NOTEBOOK, BIOS
APLKRVPA.X64.0144.B10.1606270006 06/27/2016
[ 219.968627] Workqueue: events_unbound intel_atomic_commit_work [i915]
[ 219.968629] Call Trace:
[ 219.968640] dump_stack+0x63/0x87
[ 219.968646] __warn+0xd1/0xf0
[ 219.968651] warn_slowpath_fmt+0x4f/0x60
[ 219.968657] ? drm_printk+0x97/0xa0
[ 219.968708] intel_get_pipe_from_connector+0x62/0x90 [i915]
[ 219.968756] intel_panel_enable_backlight+0x19/0xf0 [i915]
[ 219.968804] intel_edp_backlight_on.part.22+0x33/0x40 [i915]
[ 219.968852] intel_edp_backlight_on+0x18/0x20 [i915]
[ 219.968900] intel_enable_ddi+0x94/0xc0 [i915]
[ 219.968950] intel_encoders_enable.isra.93+0x77/0x90 [i915]
[ 219.969000] haswell_crtc_enable+0x310/0x7f0 [i915]
[ 219.969051] intel_update_crtc+0x58/0x100 [i915]
[ 219.969101] skl_update_crtcs+0x218/0x240 [i915]
[ 219.969153] intel_atomic_commit_tail+0x350/0x1000 [i915]
[ 219.969159] ? vtime_account_idle+0xe/0x50
[ 219.969164] ? finish_task_switch+0x107/0x250
[ 219.969214] intel_atomic_commit_work+0x12/0x20 [i915]
[ 219.969219] process_one_work+0x153/0x3f0
[ 219.969223] worker_thread+0x12b/0x4b0
[ 219.969227] kthread+0x101/0x140
[ 219.969230] ? rescuer_thread+0x340/0x340
[ 219.969233] ? kthread_park+0x90/0x90
[ 219.969237] ? do_syscall_64+0x6e/0x180
[ 219.969243] ret_from_fork+0x2c/0x40
[ 219.969246] ---[ end trace 0a8fa19387b9ad6d ]---
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100022
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170612102115.23665-4-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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|
Passing the state is also needed to convert the backlight functions
to use the correct state instead of looking it up.
This is done as a separate commit to allow easier bisecting.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100022
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170612102115.23665-3-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
|
|
The backlight functions need to determine the pipe and the transcoder the
backlight will be enabled on, so pass crtc_state instead of trying to
dereference the state without holding locks.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100022
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170612102115.23665-2-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
|
|
A display resolution is only supported if it meets all the restrictions
below for Maximum Pipe Pixel Rate.
The display resolution must fit within the maximum pixel rate output
from the pipe. Make sure that the display pipe is able to feed pixels at
a rate required to support the desired resolution.
For each enabled plane on the pipe {
If plane scaling enabled {
Horizontal down scale amount = Maximum[1, plane horizontal size /
scaler horizontal window size]
Vertical down scale amount = Maximum[1, plane vertical size /
scaler vertical window size]
Plane down scale amount = Horizontal down scale amount *
Vertical down scale amount
Plane Ratio = 1 / Plane down scale amount
}
Else {
Plane Ratio = 1
}
If plane source pixel format is 64 bits per pixel {
Plane Ratio = Plane Ratio * 8/9
}
}
Pipe Ratio = Minimum Plane Ratio of all enabled planes on the pipe
If pipe scaling is enabled {
Horizontal down scale amount = Maximum[1, pipe horizontal source size /
scaler horizontal window size]
Vertical down scale amount = Maximum[1, pipe vertical source size /
scaler vertical window size]
Note: The progressive fetch - interlace display mode is equivalent to a
2.0 vertical down scale
Pipe down scale amount = Horizontal down scale amount *
Vertical down scale amount
Pipe Ratio = Pipe Ratio / Pipe down scale amount
}
Pipe maximum pixel rate = CDCLK frequency * Pipe Ratio
In this patch our calculation is based on pipe downscale amount
(plane max downscale amount * pipe downscale amount) instead of Pipe
Ratio. So,
max supported crtc clock with given scaling = CDCLK / pipe downscale.
Flip will fail if,
current crtc clock > max supported crct clock with given scaling.
Changes since V1:
- separate out fixed_16_16 wrapper API definition
Changes since V2:
- Fix buggy crtc !active condition (Maarten)
- use intel_wm_plane_visible wrapper as per Maarten's suggestion
Changes since V3:
- Change failure return from ERANGE to EINVAL
Changes since V4:
- Rebase based on previous patch changes
Changes since V5:
- return EINVAL instead of continue (Maarten)
Changes since V6:
- Improve commit message
- Address review comment
Changes since V7:
- use !enable instead of !active
- rename config variable for consistency (Maarten)
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170526151546.25025-4-mahesh1.kumar@intel.com
|
|
SDVO was the last connector that's still using the legacy paths
for properties, and this is with a reason!
This connector implements a lot of properties dynamically,
and some of them shared with the digital connector state,
so sdvo_connector_state subclasses intel_digital_connector_state.
set_property had a lot of validation, but this is handled in the
drm core, so most of the validation can die off. The properties
are written right before enabling the connector, since there is no
good way to update the properties without crtc.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-13-maarten.lankhorst@linux.intel.com
|
|
intel_hdmi supports 3 properties, force_audio, broadcast rgb and
scaling mode. The last one is only created for eDP, so the is_eDP
in set_property is not required.
panel fitting and broadcast rgb are straightforward and only requires
changing compute_config.
force_audio is also used to force DVI mode, which means changes to
compute_config and mode_valid. mode_valid is called with
connection_mutex held, so it can safely dereference connector->state.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-11-maarten.lankhorst@linux.intel.com
|
|
intel_dp supports 3 properties, scaling mode, broadcast rgb and
force_audio. intel_digital_connector handles the plumbing,
so we only have to hook this up in compute_config and init.
Changes since v1:
- Remove limited_color_range too, unused. (danvet)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-10-maarten.lankhorst@linux.intel.com
|
|
Some atomic properties are common between the various kinds of
connectors, for example a lot of them use panel fitting mode.
It makes sense to put a lot of it in a common place, so each
connector can use it while they're being converted.
Implement the properties required for the connectors:
- scaling mode property
- force audio property
- broadcast rgb
- aspect ratio
While at it, make clear that intel_digital_connector_atomic_get_property
is a hack that has to be removed when all connector properties
are converted to atomic.
Changes since v1:
- Scaling mode and aspect ratio are partly handled in core now.
Changes since v2:
- Split out the scaling mode / aspect ratio changes to a preparation
patch.
- Use mode_changed for panel fitter, changes to this property
are checked by fastset.
- Allowed_scaling_modes is removed, handled through core now.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-6-maarten.lankhorst@linux.intel.com
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|
The first step in converting connector properties to atomic is
wiring up the atomic state. We're still not completely supoprting
the scaling mode in the atomic case, but this is the first step
towards it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-4-maarten.lankhorst@linux.intel.com
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More stuff for 4.13:
- skl+ wm fixes from Mahesh Kumar
- some refactor and tests for i915_sw_fence (Chris)
- tune execlist/scheduler code (Chris)
- g4x,g33 gpu reset improvements (Chris, Mika)
- guc code cleanup (Michal Wajdeczko, Michał Winiarski)
- dp aux backlight improvements (Puthikorn Voravootivat)
- buffer based guc/host communication (Michal Wajdeczko)
* tag 'drm-intel-next-2017-05-29' of git://anongit.freedesktop.org/git/drm-intel: (253 commits)
drm/i915: Update DRIVER_DATE to 20170529
drm/i915: Keep the forcewake timer alive for 1ms past the most recent use
drm/i915/guc: capture GuC logs if FW fails to load
drm/i915/guc: Introduce buffer based cmd transport
drm/i915/guc: Disable send function on fini
drm: Add definition for eDP backlight frequency
drm/i915: Drop AUX backlight enable check for backlight control
drm/i915: Consolidate #ifdef CONFIG_INTEL_IOMMU
drm/i915: Only GGTT vma may be pinned and prevent shrinking
drm/i915: Serialize GTT/Aperture accesses on BXT
drm/i915: Convert i915_gem_object_ops->flags values to use BIT()
drm/i915/selftests: Silence compiler warning in igt_ctx_exec
drm/i915/guc: Skip port assign on first iteration of GuC dequeue
drm/i915: Remove misleading comment in request_alloc
drm/i915/g33: Improve reset reliability
Revert "drm/i915: Restore lost "Initialized i915" welcome message"
drm/i915/huc: Update GLK HuC version
drm/i915: Check for allocation failure
drm/i915/guc: Remove action status and statistics from debugfs
drm/i915/g4x: Improve gpu reset reliability
...
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Switch to using the common DP helpers instead of using our own.
v2: also remove leftover struct intel_dp_desc (Daniel)
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Move cursor_base, cursor_cntl, and cursor_size from intel_crtc
into intel_plane so that we don't need the crtc for cursor stuff
so much.
Also entirely nuke cursor_addr which IMO doesn't provide any benefit
since it's not actually used by the cursor code itself. I'm not 100%
sure what the SKL+ DDB is code is after by looking at cursor_addr so
I just make it do its checks unconditionally. If that's not correct
then we should likely replace it with somehting like
plane_state->visible.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170327185546.2977-5-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
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Streamline things by passing intel_plane and intel_crtc instead of
the drm types to our plane hooks.
v2: s/ilk/g4x/ in sprite code
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170327185546.2977-3-ville.syrjala@linux.intel.com
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Implement proper two stage watermark programming for g4x. As with
other pre-SKL platforms, the watermark registers aren't double
buffered on g4x. Hence we must sequence the watermark update
carefully around plane updates.
The code is quite heavily modelled on the VLV/CHV code, with some
fairly significant differences due to the different hardware
architecture:
* g4x doesn't use inverted watermark values
* CxSR actually affects the watermarks since it controls memory self
refresh in addition to the max FIFO mode
* A further HPLL SR mode is possible with higher memory wakeup
latency
* g4x has FBC2 and so it also has FBC watermarks
* max FIFO mode for primary plane only (cursor is allowed, sprite is not)
* g4x has no manual FIFO repartitioning
* some TLB miss related workarounds are needed for the watermarks
Actually the hardware is quite similar to ILK+ in many ways. The
most visible differences are in the actual watermakr register
layout. ILK revamped that part quite heavily whereas g4x is still
using the layout inherited from earlier platforms.
Note that we didn't previously enable the HPLL SR on g4x. So in order
to not introduce too many functional changes in this patch I've not
actually enabled it here either, even though the code is now fully
ready for it. We'll enable it separately later on.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170421181432.15216-13-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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We'll be wanting to share some of these watermark structures on g4x,
so let's rename them to have a g4x_ prefix instead of vlv_.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170421181432.15216-5-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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This is only used in i915, which had used its own non-atomic way to
deal with the picture aspect ratio. Move selected aspect_ratio to
atomic state and use the atomic state in the affected i915 connectors.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-2-maarten.lankhorst@linux.intel.com
[mlankhorst: taomic -> atomic thanks to Manasi's input]
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Move the BUILD_BUG_ONs for busy-wait duration outside the
_wait_for_atomic macro as discussed on the mailing list.
v2: Simplify the macro by omitting the ret__ local. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Fixes: 1d1a9774e404 ("drm/i915: Extend intel_wait_for_register_fw() with fast timeout")
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170418105211.7089-1-tvrtko.ursulin@linux.intel.com
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If link training at a link rate optimal for a particular
mode fails during modeset's atomic commit phase, then we
let the modeset complete and then retry. We save the link rate
value at which link training failed, update the link status property
to "BAD" and use a lower link rate to prune the modes. It will redo
the modeset on the current mode at lower link rate or if the current
mode gets pruned due to lower link constraints then, it will send a
hotplug uevent for userspace to handle it.
This is also required to pass DP CTS tests 4.3.1.3, 4.3.1.4,
4.3.1.6.
This patch is a resend of the original commit id (233ce881dd91fb
"drm/i915: Implement Link Rate fallback on Link training failure")
which got reverted in this commit id (afc1ebf4562a14 Revert
"drm/i915: Implement Link Rate fallback on Link training failure")
due to CI failures.
After investigating the CI failures it was found that these
were essentially the failures which were always there but hidden because
they used to be DRM_DEBUG_KMS messages for link failures so never got
caught by CI. But now this patch actually throws DRM_ERROR if the link
training fails at RBR and 1 lane. So it caught these link train failures.
There were two failures:
1. On SKL 6700k this was because the machine in CI lab is a SKL desktop
without eDP on Port A. But our VBT initialization code in the driver writes
VBT defaults in a way that it always sets DP flag on Port A and this does
not get cleared after parsing the VBT outputs. This has been fixed in
commit id (bb1d132935c2f8 "drm/i915/vbt: split out defaults that are set
when there is no VBT) and (665788572c6410b "drm/i915/vbt: don't propagate
errors from intel_bios_init())
2. On ILK-650 desktop - This was happening because of a bad monitor desktop
combination. I switched the monitor in the CI lab and that helped get rid
of the link failures on ILK system.
v10:
* Rebase on drm-tip and resend after revert
v9:
* Use the trimmed max values of link rate/lane count based on
link train fallback (Daniel Vetter)
v8:
* Set link_status to BAD first and then call mode_valid (Jani Nikula)
v7:
Remove the redundant variable in previous patch itself
v6:
* Obtain link rate index from fallback_link_rate using
the helper intel_dp_link_rate_index (Jani Nikula)
* Include fallback within intel_dp_start_link_train (Jani Nikula)
v5:
* Move set link status to drm core (Daniel Vetter, Jani Nikula)
v4:
* Add fallback support for non DDI platforms too
* Set connector->link status inside set_link_status function
(Jani Nikula)
v3:
* Set link status property to BAd unconditionally (Jani Nikula)
* Dont use two separate variables link_train_failed and link_status
to indicate same thing (Jani Nikula)
v2:
* Squashed a few patches (Jani Nikula)
Acked-by: Tony Cheng <tony.cheng@amd.com>
Acked-by: Harry Wentland <Harry.wentland@amd.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/16ca48b1e74c618929245e9a085b9e3483c3a16d.1491485983.git.jani.nikula@intel.com
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Those properties are not hooked up on MST and were ignored. Best not expose them at all.
Without this the next patch fails to start on X.org, because the DP-MST properties could
not be read.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/751b85a0-81cd-09e2-9e60-6d4ddbf1c6ac@linux.intel.com
Testcase: kms_properties
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Maarten needs both the new connector->atomic_check hook and the
connection_mutex locking changes in the probe helpers to be able to
start merging the connector property conversion to atomic.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The source might not support as many lanes as the sink, or the link
training might have failed at higher lane counts. Take these into
account.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/cf59530acafaf9258fb643d321ad251b44f34e29.1491485983.git.jani.nikula@intel.com
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If we modify these on the fly depending on the link conditions, don't
pretend they are sink properties.
Some link vs. sink confusion still remains, but we'll take care of them
in follow-up patches.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/3739b4fac502ebd1c6e075a62c1a195e4094eb16.1491485983.git.jani.nikula@intel.com
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Now that source rates are static and sink rates are updated whenever
DPCD is updated, we can do and cache the intersection of them whenever
sink rates are updated. This reduces code complexity, as we don't have
to keep calling the functions to intersect. We also get rid of several
common rates arrays on stack.
Limiting the common rates by a max link rate can be done by picking the
first N elements of the cached common rates.
v2: get rid of the local common_rates variable (Manasi)
v3: don't clobber cached eDP rates on short pulse (Ville)
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/e3b287e8cb6559b1f8fd4e80b78a8d22f1802eb7.1491485983.git.jani.nikula@intel.com
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Looking at DPCD DP_MAX_LINK_RATE may be completely bogus for eDP 1.4
which is allowed to use link rate select method and have 0 in max link
rate. With this change, it makes sense to store the max rate as the
actual rate rather than as a bw code.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/3e8baadb406d59f414cab36fed9f0b35d207fde5.1491485983.git.jani.nikula@intel.com
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Last drm-misc-next pull req for 4.12
Core changes:
- fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry)
- drm_ioctl and drm_sysfs improved/gained documentation (Daniel)
- [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander)
- Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff
(Daniel)
- Add connector_atomic_check to check conn constraints on modeset (Maarten)
- Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob)
Driver changes:
- meson moved to drm-misc (Neil)
- Added support for Amlogic GX SoCs in dw-hdmi (Neil)
- Rockchip unbind actually cleans up the things bind initializes (Jeffy)
- A couple misc fixes in virtio, dw-hdmi
NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx
as well as the new synopsys media formats)
* tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits)
Revert "drm: Don't allow interruptions when opening debugfs/crc"
drm: Only take cursor locks when the cursor plane exists
drm/vmwgfx: Fix fbdev emulation using legacy functions
drm/rockchip: Shutdown all crtcs when unbinding drm
drm/rockchip: Reorder drm bind/unbind sequence
drm/rockchip: analogix_dp: Disable clock when unbinding
drm/rockchip: vop: Unprepare clocks when unbinding
drm/rockchip: vop: Enable pm domain before vop_initial
drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding
drm/rockchip: cdn-dp: Don't try to release firmware when not loaded
drm: bridge: analogix: Destroy connector & encoder when unbinding
drm: bridge: analogix: Disable clock when unbinding
drm: bridge: analogix: Unregister dp aux when unbinding
drm: bridge: analogix: Detach panel when unbinding analogix dp
drm: Don't allow interruptions when opening debugfs/crc
drm/virtio: don't leak bo on drm_gem_object_init failure
drm: bridge: dw-hdmi: fix input format/encoding from plat_data
drm: omap: use common OF graph helpers
drm: convert drivers to use drm_of_find_panel_or_bridge
drm: convert drivers to use of_graph_get_remote_node
...
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mode_valid() called from drm_helper_probe_single_connector_modes()
may need to look at connector->state because what a valid mode is may
depend on connector properties being set. For example some HDMI modes
might be rejected when a connector property forces the connector
into DVI mode.
Some implementations of detect() already lock all state,
so we have to pass an acquire_ctx to them to prevent a deadlock.
This means changing the function signature of detect() slightly,
and passing the acquire_ctx for locking multiple crtc's.
For the callbacks, it will always be non-zero. To allow callers
not to worry about this, drm_helper_probe_detect_ctx is added
which might handle -EDEADLK for you.
Changes since v1:
- Always set ctx parameter.
Changes since v2:
- Always take connection_mutex when probing.
Changes since v3:
- Remove the ctx from intel_dp_long_pulse, and add
WARN_ON(!connection_mutex) (danvet)
- Update docs to clarify the locking situation. (danvet)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1491504920-4017-1-git-send-email-maarten.lankhorst@linux.intel.com
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There is some conflation related to sink rates, making this change more
complicated than it would otherwise have to be. There are three changes
here that are rather difficult to split up:
1) Use the intel_dp->sink_rates array for all DP, not just eDP 1.4. We
initialize it from DPCD on eDP 1.4 like before, but generate it based
on DP_MAX_LINK_RATE on others. This reduces code complexity when we
need to use the sink rates; they are all always in the sink_rates
array.
2) Update the sink rate array whenever we read DPCD, and use the
information from there. This increases code readability when we need
the sink rates.
3) Disentangle fallback rate limiting from sink rates. In the code, the
max rate is a dynamic property of the *link*, not of the *sink*. Do
the limiting after intersecting the source and sink rates, which are
static properties of the devices.
This paves the way for follow-up refactoring that I've refrained from
doing here to keep this change as simple as it possibly can.
v2: introduce use_rate_select and handle non-confirming eDP (Ville)
v3: don't clobber cached eDP rates on short pulse (Ville)
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/071bad76467f8ab2e73f3f61ad52d5a468004c71.1490712890.git.jani.nikula@intel.com
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Ville Syrjälä
Jani Nikula
Jim Bride
Ben Widawsky
Daniel Vetter
Peter Rosin
Shashank Sharma
Imre Deak
Matthias Kaehlcke
Chris Wilson
Dave Airlie
Maarten Lankhorst
Mahesh Kumar
Tvrtko Ursulin
Manasi Navare