Commit Graph

507974 Commits

Author SHA1 Message Date
A.Sunil Kamath
664326f8a5 drm/i915/bxt: Implement enable/disable for Display C9 state
v2: Modified as per review comments from Imre
- Mention enabling instead of allowing in the debug trace and
  remove unnecessary comments.

v3:
- Rebase to latest.
- Move DC9-related functions from intel_display.c to intel_runtime_pm.c.

v4: (imre)
- remove DC5 disabling, it's a nop at this point
- squashed in Suketu's "Assert the requirements to enter or exit DC9"
  patch
- remove check for RUNTIME_PM from assert_can_enable_dc9, it's not a
  dependency

Signed-off-by: A.Sunil Kamath <sunil.kamath@intel.com> (v3)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Sagar Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-16 09:20:16 +02:00
Imre Deak
eee215660c drm/i915/bxt: add description about the BXT PHYs
Extend the VLV/CHV DPIO (PHY) documentation with the BXT specifics.

v2:
- add more detail about the mapping between ports and transcoders (ville)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-16 09:20:15 +02:00
Vandana Kannan
5c6706e564 drm/i915/bxt: add display initialize/uninitialize sequence (PHY)
Add PHY specific display initialization sequence as per BSpec.

Note that the PHY initialization/uninitialization are done
at their current place only for simplicity, in a future patch - when more
of the runtime PM features will be enabled - these will be moved to
power well#1 and modeset encoder enabling/disabling hooks respectively.

The call to uninitialize the PHY during system/runtime suspend will be
added later in this patchset.

v1: Added function definitions in header files
v2: Imre's review comments addressed
- Moved CDCLK related definitions to i915_reg.h
- Removed defintions for CDCLK frequency
- Split uninit_cdclk() by adding a phy_uninit function
- Calculate freq and decimal based on input frequency
- Program SSA precharge based on input frequency
- Use wait_for 1ms instead 200us udelay for DE PLL locking
- Removed initial value for divider, freq, decimal, ratio.
- Replaced polling loops with wait_for
- Parameterized latency optim setting
- Fix the parts where DE PLL has to be disabled.
- Call CDCLK selection from mode set

v3: (imre)
- add note about the plan to move the cdclk/phy init to a better place
- take rps.hw_lock around pcode access
- fix DDI PHY timeout value
- squash in Vandana's "PORT_CL2CM_DW6_A BUN fix",
  "DDI PHY programming register defn", "Do ddi_phy_init always",
- move PHY register macros next to the corresponding CHV/VLV macros
- move DE PLL register macros here from another patch since they are
  used here first
- add BXT_ prefix to CDCLK flags
- s/COMMON_RESET/COMMON_RESET_DIS/ and clarify related code comments
- fix incorrect read value for the RMW of BXT_PHY_CTL_FAMILY_DDI
- fix using GT_DISPLAY_EDP_POWER_ON vs. GT_DISPLAY_DDI_POWER_ON
  when powering on DDI ports
- fix incorrect port when setting BXT_PORT_TX_DW14_LN for DDI ports
- add missing masking when programming CDCLK_FREQ_DECIMAL
- add missing powering on for DDI-C port, rename OCL2_LDOFUSE_PWR_EN
  to OCL2_LDOFUSE_PWR_DIS to reduce confusion
- add note about mismatch with bspec in the PORT_REF_DW6 fields
- factor out PHY init code to a new function, so we can call it for
  PHY1 and PHY0, instead of open-coding the same

v4: (ville)
- split the CDCLK/PHY parts into two patches, update commit message
  accordingly
- use the existing dpio_phy enum instead of adding a new one for the
  same purpose
- flip the meaning of PHYs so that PHY_A is PHY1 and PHY_BC is PHY0 to
  better match CHV
- s/BXT_PHY/_BXT_PHY/
- use _PIPE for _BXT_PHY instead of open-coding it
- drop _0_2_0_GTTMMADR suffix from BXT_P_CR_GT_DISP_PWRON
- define GT_DISPLAY_POWER_ON in a more standard way
- make a note that the CHV ConfigDB also disagrees about GRC_CODE field
  definitions
- fix lane optimization refactoring fumble from v3
- add per PHY uninit functions to match the init counterparts

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> (v2)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-16 09:20:15 +02:00
Vandana Kannan
f8437dd1b5 drm/i915/bxt: add display initialize/uninitialize sequence (CDCLK)
Add CDCLK specific display clock initialization sequence as per BSpec.

Note that the CDCLK initialization/uninitialization are done at their
current place only for simplicity, in a future patch - when more of the
runtime PM features will be enabled - these will be moved to power
well#1 and modeset encoder enabling/disabling hooks respectively. This
also means that atm dynamic power gating power well #1 is effectively
disabled.

The call to uninitialize CDCLK during system/runtime suspend will be
added later in this patchset.

v1: Added function definitions in header files
v2: Imre's review comments addressed
- Moved CDCLK related definitions to i915_reg.h
- Removed defintions for CDCLK frequency
- Split uninit_cdclk() by adding a phy_uninit function
- Calculate freq and decimal based on input frequency
- Program SSA precharge based on input frequency
- Use wait_for 1ms instead 200us udelay for DE PLL locking
- Removed initial value for divider, freq, decimal, ratio.
- Replaced polling loops with wait_for
- Parameterized latency optim setting
- Fix the parts where DE PLL has to be disabled.
- Call CDCLK selection from mode set

v3: (imre)
- add note about the plan to move the cdclk/phy init to a better place
- take rps.hw_lock around pcode access
- move DE PLL register macros here from another patch since they are
  used here first
- add BXT_ prefix to CDCLK flags
- add missing masking when programming CDCLK_FREQ_DECIMAL

v4: (ville)
- split the CDCLK/PHY parts into two patches, update commit message
  accordingly
- s/DISPLAY_PCU_CONTROL/HSW_PCODE_DE_WRITE_FREQ_REQ/
- simplify BXT_DE_PLL_RATIO macros
- fix BXT_DE_PLL_RATIO_MASK
- s/bxt_select_cdclk_freq/broxton_set_cdclk_freq/
- move cdclk init/uninit/set code from intel_ddi.c to intel_display.c
- remove redundant code comments for broxton_set_cdclk_freq()
- sanitize fixed point<->integer frequency value conversion
- use DRM_ERROR instead of WARN
- do RMW when programming BXT_DE_PLL_CTL for safety
- add note about PLL lock timeout being exactly 200us
- make PCU error messages more descriptive
- instead of using 0 freq to mean PLL off/bypass freq use 19200
  for clarity, as the latter one is the actual rate
- simplify pcode programming, removing duplicated
  sandybridge_pcode_write() call
- sanitize code flow, remove unnecessary scratch vars in
  broxton_set_cdclk() (imre)
- Remove bound check for maxmimum freq to match current code.
  This check will be added later at a more proper platform
  independent place once atomic support lands.
- add note to remove freq guard band which isn't needed on BXT
- add note to reduce freq to minimum if no pipe is enabled
- combine broxton_modeset_global_pipes() with
  valleyview_modeset_global_pipes()

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> (v2)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-16 09:20:14 +02:00
Vandana Kannan
164dfd2877 drm/i915: Rename vlv_cdclk_freq to cdclk_freq
Rename vlv_cdclk_freq to cdclk_freq so that it can be used for all
platforms as required. Needed by the next patch.

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: A.Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-16 09:20:13 +02:00
Rodrigo Vivi
c7240c3bc5 drm/i915: PSR VLV: Add single frame update.
According to spec: "In PSR HW or SW mode, SW set this bit before writing
registers for a flip. It will be self-clear when it gets to the PSR
active state."

Some versions of spec mention that this is needed when in
"Persistent mode" but define it as same as "SW mode". Since this
fix the page flip case let's assume this is exactly what we need.

Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 19:15:23 +02:00
Rodrigo Vivi
89251b177b drm/i915: PSR: deprecate link_standby support for core platforms.
On Haswell and Broadwell with link in standby when exit event happens
between vblank and VSC packet, PSR exit on panel but DPA transmitter
still sends black pixel. When this condition hits, panel will intermittently
display black frame.

The known W/A for this case involve the of single_frame update
that isn't supported on Haswell and to be supported on Broadwell
3 other workarounds would be required. So it is better and safe to
just deprecate link_standby for now.

Also, link fully off saves more power than link_standby and afwk
no OEM is requesting link standby on VBT. There is no reason for that.

For Skylake let's just consider it behaves like Broadwell until
we prove otherwise.

v2: Fix commit message (Durga).

v3: Fix conflict with PSR2.

Reference: HSD: bdwgfx/1912559
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 19:15:17 +02:00
Rodrigo Vivi
3301d40921 drm/i915: PSR: Fix DP_PSR_NO_TRAIN_ON_EXIT logic
Since the beginning there is a missunderstanding on the meaning of this
dpcd bit.
This bit shouldn't indicate whether to use link standby or not, but just
be used to configure TP1, TP2 and TP3 times and tell hw aux should be skiped
since HW is the responsible one.

Even with help of frontbuffer tracking, HW is still fully responsible for
PSR exit logic with/without DP training.

DP_PSR_NO_TRAIN_ON_EXIT means the source doesn't need to do the training, but
it doesn't tell to avoid TP patterns, so we will send minimal TP1 and avoid
TP2. It also means that sink itself can take up to 5 idle frames for training.
6 in our case since we might be off by 1. So we also increment idle_frames by 4
here.

v2: Fix and improve commit message (Durga).
v3: Use minimal TP1 time avoiding TP2 and increase idle frame.

Cc: Durgadoss R <durgadoss.r@intel.com>
Cc: Arthur Runyan <arthur.j.runyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 19:15:01 +02:00
Rodrigo Vivi
cff5190cb9 drm/i915: PSR: Remove wrong LINK_DISABLE.
This wrong logic and useless define came from first versions and
came along with all rework. Just now I notice how ugly, wrong and
useless this is.

val is already defined as 0 anyway and logic is completelly wrong
and useless. So let's starting the link_standby fix with this
cleaning.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 19:14:53 +02:00
Satheeshakrishna M
0b4a2a36d0 drm/i915/bxt: Define BXT power domains
Add BXT power domains

v2: Use DOMAIN_PLLS instead of a new CDCLK one, whitespace fixes
    (Damien)
v3: add VGA, TRANSCODER_A power domains (imre)

Signed-off-by: Satheeshakrishna M <satheeshakrishna.m@intel.com> (v1)
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 15:05:47 +02:00
Shashank Sharma
9e63743ebb drm/i915/bxt: Enable GMBUS IRQ
GMBUS interrupt has been moved to CPU side in BXT.
What this patch does is:
1. Enable GMBUS IRQ in de_post_install function
2. Handle this interrupt as a port interrupt in display irq
   handler

v2: Rebase on top of the for_each_pipe() change adding dev_priv as
    first argument (Damien).
v3: read BXT_DE_PORT_GMBUS IIR flag only on BXT on other platforms
    it's reserved (imre)
v4: (jani)
- remove redundant 'BXT GMBUS' comment
- fix formatting of BXT_DE_PORT_GMBUS definition

Reviewed-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:53:04 +02:00
Shashank Sharma
266ea3d9c4 drm/i915/bxt: Add BXT support in gen8_irq functions
This patch adds conditional checks in gen8_irq functions
to support BXT. Most of the checks just look for PCH split
availability, and block the call to PCH interrupt functions if
not available.

v2: (jani)
- drop redundant TODO comment about PCH IRQ flags on BXT
- check HAS_PCH_SPLIT instead of IS_BROXTON when handling PCH specific
  IRQ events in gen8_irq_handler()
- check HAS_PCH_SPLIT before calling the function instead of a
  corresponding early return within the called function for
  ibx_irq_reset(), ibx_irq_pre_postinstall(), ibx_irq_postinstall()
v3: (jani)
- in ironlake_irq_postinstall() and ironlake_irq_reset() HAS_PCH_SPLIT
  is always true, so drop the check for it

Reviewed-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Shashank Sharma <ppashank.sharma@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:53:03 +02:00
Shashank Sharma
d04a492dd5 drm/i915/bxt: Add DDI hpd handler
This patch adds a hot plug interrupt handler function for BXT.
What this function typically does is:
1. Check if hot plug is enabled from hot plug control register.
2. Call hpd_irq_handler with appropriate trigger to detect a
   plug storm and schedule a bottom half.
3. Clear sticky status bits in hot plug control register..

v2: (jani)
- drop redundant unlikely()
- s/Todo/FIXME:/ in code comment
- declare 'found' var in the scope where it's used
- check for IS_BROXTON before handling BXT_DE_PORT_HOTPLUG_MASK

Reviewed-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:53:03 +02:00
Imre Deak
6b5ad42f0a drm/i915/bxt: support for HPD long/short status decoding
All non-GMCH platforms have the same register layout for HPD long/short
status, so let's use this condition instead of HAS_PCH_SPLIT, as the
latter doesn't apply for BXT.

Noticed by Daniel.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:53:02 +02:00
Shashank Sharma
e0a20ad78c drm/i915/bxt: DDI Hotplug interrupt setup
In BXT, DDI hotplug control has been moved to CPU from PCH.
This patch adds a new IRQ setup function for BXT which:
1. Checks which HPD ports are requested to be enabled by encoders.
2. Enables those ports in the hot plug control register.
3. Un-masks these port interrupts in the IMR register.
4. Enables these port interrupts in the IER register.

V3: Kept the default HPD filter count to default (500 us) as per
    satheesh's comment
v4: Remove unused HPD filter defines (Damien)
v5: warn if trying to setup HPD on port A (imre)
v6: fix order of definitions for register bitfields (Daniel)
v7: (jani)
- define the size of the hpd_bxt array explicitly for bound checking
- use for_each_intel_encoder instead of open coding it
- fix format/order of definitions for BXT_HOTPLUG_CTL reg bitfields

Reviewed-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com> (v4)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:53:02 +02:00
Jani Nikula
4c27283415 drm/i915: add bxt gmbus support
For BXT gmbus is pulled from PCH to CPU. From implementation point of
view only pin pair configuration will change. The existing
implementation supports all platforms previous to GEN8 and also SKL. But
for BXT pin pair configuration is completely different than SKL or other
previous GEN's. This patch introduces the new pin pair configuration
structure specific to BXT and also ensures every real gmbus port has a
gpio pin.

v3 by Jani: with the platform independent prep work in place, the bxt
enabling reduces to a fairly trivial patch. Credits are due Sunil for
giving me the ideas (with his patches) what the platform independent
parts should look like.

v4: Fix intel_hdmi_init_connector() for bxt. Abstract gmbus_pin access
more. s/GPU/PCH/ in commit message.

v5: Rebase.

Issue: VIZ-3574
Signed-off-by: A.Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 14:01:55 +02:00
Daniel Vetter
c5fe557dde Merge branch 'topic/bxt-stage1' into drm-intel-next-queued
Separate topic branch for bxt didn't work out since we needed to
refactor the gmbus code a bit to make it look decent. So backmerge.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-04-14 14:00:56 +02:00
Vandana Kannan
c776eb2edf drm/i915/bxt: don't use unsupported port detection
The port detection register flags in SFUSE_STRAP and DDI_BUF_CTL_A are
not defined for BXT, so don't use them.

Suggested by Satheesh.

v2:
- DDI_BUF_CTL_A bit 0 is not useful on BXT. Making changes to use this
  bit when simulator or BXT is not applicable. Code re-arranged as per
  Damien's suggestion.

v3:
- clarify commit message, add code comment (imre)

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> (v2)
Cc: M, Satheeshakrishna <satheeshakrishna.m@intel.com>
Cc: Lespiau, Damien <damien.lespiau@intel.com>
Cc: Shankar, Uma <uma.shankar@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:24 +02:00
Robert Beckett
e3a290553f drm/i915/bxt: add workaround to avoid PTE corruption
Set TLBPF in TILECTL. This fixes an issue with BXT HW seeing
corrupted pte entries.

v2:
- move the workaround to bxt_init_clock_gating (imre)

Signed-off-by: Robert Beckett <robert.beckett@intel.com> (v1)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:23 +02:00
Ben Widawsky
8d09c8123d drm/i915/skl: add WaDisableMaskBasedCammingInRCC workaround
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:23 +02:00
Ben Widawsky
38a39a7be7 drm/i915/bxt: add WaDisableMaskBasedCammingInRCC workaround
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:22 +02:00
Ben Widawsky
868434c51e drm/i915/bxt: add GEN8_HDCUNIT_CLOCK_GATE_DISABLE_HDCREQ workaround
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:22 +02:00
Imre Deak
32608ca255 drm/i915/bxt: add GEN8_SDEUNIT_CLOCK_GATE_DISABLE workaround
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:21 +02:00
Imre Deak
a82abe43ce drm/i915/bxt: add bxt_init_clock_gating
v2:
- Make the condition to select between SKL and BXT consistent with the
  corresponding condition in init_workarounds_ring (Nick)

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:21 +02:00
Imre Deak
9647ff36ae drm/i915/gen9: fix PIPE_CONTROL flush for VS_INVALIDATE
On GEN9+ per specification a NULL PIPE_CONTROL needs to be emitted
before any PIPE_CONTROL command with the VS_INVALIDATE flag set.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-14 13:55:20 +02:00
Chris Wilson
30154650b8 drm/i915: Remove obj->pin_mappable
The obj->pin_mappable flag only exists for debug purposes and is a
hindrance that is mistreated with rotated GGTT views. For debug
purposes, it suffices to mark objects with pin_display as being of note.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 14:25:36 +02:00
Chris Wilson
2def4ad99b drm/i915: Optimistically spin for the request completion
This provides a nice boost to mesa in swap bound scenarios (as mesa
throttles itself to the previous frame and given the scenario that will
complete shortly). It will also provide a good boost to systems running
with semaphores disabled and so frequently waiting on the GPU as it
switches rings. In the most favourable of microbenchmarks, this can
increase performance by around 15% - though in practice improvements
will be marginal and rarely noticeable.

v2: Account for user timeouts
v3: Limit the spinning to a single jiffie (~1us) at most. On an
otherwise idle system, there is no scheduler contention and so without a
limit we would spin until the GPU is ready.
v4: Drop forcewake - the lazy coherent access doesn't require it, and we
have no reason to believe that the forcewake itself improves seqno
coherency - it only adds delay.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Eero Tamminen <eero.t.tamminen@intel.com>
Cc: "Rantala, Valtteri" <valtteri.rantala@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 14:24:36 +02:00
Chandra Konduru
a1b2278e4d drm/i915: skylake panel fitting using shared scalers
Enabling skylake panel fitting feature using shared scalers

v2:
-added force detach parameter for pfit disable purpose (me)
-read crtc scaler state from hw state (Daniel)
-replaced both skylake_pfit_enable and disable with skylake_pfit_update (me)
-added scaler id check to intel_pipe_config_compare (Daniel)

v3:
-updated function header to kerneldoc format (Matt)
-dropped need_scaling checks (Matt)

v4:
-move clearing of scaler id from commit path to check path (Matt)
-updated colorkey checks based on recent updates (me)
-squashed scaler check while enabling colorkey to here (me)
-use values in plane_state->src as regular integers (me)
-changes made not to modify state in commit path (Matt)

v5:
-squashed helper function to update scaler users to here (Matt)
-squashed helper function to detach scaler to here (Matt, me)
-changes to align with updated scaler structures (Matt, me)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:44:17 +02:00
Chandra Konduru
f76f35dc04 drm/i915: copy staged scaler state from drm state to crtc->config.
This is required for commit to perform as per staged assignment
of scalers until atomic crtc commit function is available.

As a place holder doing this copy from intel_atomic_commit for
scaling to operate correctly.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:44:09 +02:00
Chandra Konduru
e04fa80362 drm/i915: Ensure setting up scalers into staged crtc_state
From intel_atomic_check, call intel_atomic_setup_scalers() to
assign scalers based on staged scaling requests. Fail the
transaction if setup returns error.

Setting up of scalers should be moved to atomic crtc check  once
atomic crtc is ready.

v2:
-updated parameter passing to setup_scalers (me)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:39:10 +02:00
Chandra Konduru
d03c93d480 drm/i915: setup scalers for crtc_compute_config
Added intel_atomic_setup_scalers to setup scalers based on
staged scaling requests from a crtc and its planes. If staged
requests are supportable, this function assigns scalers to
requested planes and crtc. Note that the scaler assignement
itself is staged into crtc_state and respective plane_states
for later commit after all checks have been done.

overall high level flow:
 - scaler requests are staged into crtc_state by planes/crtc
 - check whether staged scaling requests can be supported
 - add planes using scalers that aren't in current transaction
 - assign scalers to requested users
 - as part of plane commit, scalers will be committed
   (i.e., either attached or detached) to respective planes in hw
 - as part of crtc_commit, scaler will be either attached or detached
   to crtc in hw

crtc_compute_config calls intel_atomic_setup_scalers() to start
scaler assignments as per scaler state in crtc config. This call
should be moved to atomic crtc once it is available.

v2:
-removed a log message (me)
-changed input parameter to crtc_state (me)

v3:
-remove assigning plane_state returned by drm_atomic_get_plane_state (Matt)
-fail if there is an error from drm_atomic_get_plane_state (Matt)

v4:
-changes to align with updated scaler structure (Matt, me)

v5:
-added addtional checks before enabling HQ mode (me)
-added comments to enable HQ mode (Matt)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:38:27 +02:00
Chandra Konduru
663a36407a drm/i915: Preserve scaler state when clearing crtc_state
crtc_state is cleared during mode set which wipes out complete
scaler state too. This is causing issues. To fix, ensure scaler
state is preserved because it contains not only crtc
scaler usage, but also planes using scalers on this crtc.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:54 +02:00
Chandra Konduru
6a60cd87cd drm/i915: Dump scaler_state too as part of dumping crtc_state
Dumps scaler state as part of dumping crtc_state.

v2:
-use regular ints from plane_state->src (me)

v3:
-changes to align with updated scaler structures (Matt)
-interpret plane_state->src as 16.16 format (Matt, Daniel)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:47 +02:00
Chandra Konduru
0a5ae1b074 drm/i915: Keep sprite plane src rect in 16.16 format
This patch keeps intel_plane_state->src rect back
into 16.16 format.

v2:
-sprite src rect to match primary format (Matt, Daniel)

v3:
-moved a hunk from #14 to keep src rect in check & commit in tandom (Matt)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:40 +02:00
Chandra Konduru
549e2bfb54 drm/i915: Initialize skylake scalers
Initializing scalers with supported values during crtc init.

v2:
-initialize single copy of min/max values (Matt)

v3:
-moved gen check to callsite (Matt)

v4:
-squashed planes begin with no scaler to here (me)

v5:
-updated init function with updated scaler state structure (Matt)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:28 +02:00
Chandra Konduru
08e221fbf6 drm/i915: Initialize plane colorkey to NONE
This patch initializes plane colorkey to NONE.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:13 +02:00
Chandra Konduru
be41e336c7 drm/i915: skylake scaler structure definitions
skylake scaler structure definitions. scalers live in crtc_state as
they are pipe resources. They can be used either as plane scaler or
panel fitter.

scaler assigned to either plane (for plane scaling) or crtc (for panel
fitting) is saved in scaler_id in plane_state or crtc_state respectively.

scaler_id is used instead of scaler pointer in plane or crtc state
to avoid updating scaler pointer everytime a new crtc_state is created.

v2:
-made single copy of min/max values for scalers (Matt)

v3:
-updated commentary for scaler_id (me)

v4:
-converted src/dst ranges to #defines, dropped ratios (Matt)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:30:05 +02:00
Chandra Konduru
1c9a2d4ace drm/i915: Register definitions for skylake scalers
Adding register definitions for skylake scalers.
v2:
-add #define for plane selection mask (me)

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:29:56 +02:00
Sagar Kamble
cb07bae0c4 drm/i915: Disable Render power gating
When RC6 along with Render power gating is enabled, GPU hang
happens due to lack of synchronization between GTI and Render
power gating.

v2: Updated commit message and WA name (Damien)

Change-Id: If1614206341eb52a21eadae8c5ebb2655029b50c
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:24:25 +02:00
Ander Conselvan de Oliveira
9bdbd0b911 drm/i915: Allocate connector state together with the connectors
Connector states were being allocated in intel_setup_outputs() in loop
over all connectors. That meant hot-added connectors would have a NULL
state. Since the change to use a struct drm_atomic_state for the legacy
modeset, connector states are necessary for the i915 driver to function
properly, so that would lead to oopses.

v2: Fix test for intel_connector_init() success in lvds and sdvo (PRTS)

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reported-and-tested-by: Nicolas Kalkhof <nkalkhof@web.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-13 11:23:25 +02:00
Michel Thierry
a6631bc8d6 drm/i915: Remove unused variable from execlists_context_queue
After commit d7b9ca2f7a
("drm/i915: Remove request->uniq")

dev_priv is no longer needed.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:34:44 +02:00
Jani Nikula
249e87de5f drm/i915: fix build for DEBUG_FS=n
Fix DEBUG_FS=n build broken by

commit aa7471d228
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Wed Apr 1 11:15:21 2015 +0300

    drm/i915: add i915 specific connector debugfs file for DPCD

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:19:42 +02:00
Mika Kuoppala
1d335d1b62 drm/i915: Move vm page allocation in proper place
Move to i915_vma_bind as it is part of the binding.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:18:02 +02:00
Sonika Jindal
3b7a5119b5 drm/i915/skl: Support for 90/270 rotation
v2: Moving creation of property in a function, checking for 90/270
rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for
pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset
and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:16:39 +02:00
Sonika Jindal
d81063669a drm/i915/skl: Allow universal planes to position
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:16:31 +02:00
Sagar Kamble
a4104c556a drm/i915: Naming constants to be written to GEN9_PG_ENABLE
Change-Id: I4253459c075c50d9b6f034b4ed4ad2f54cd7d1d7
Signed-off-by: Sagar Kamble <sagar.a.kamble@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 16:14:19 +02:00
Ander Conselvan de Oliveira
8d90926139 drm/i915: Remove stale comment from __intel_set_mode()
Since the following commit, the PLL calculations are done earlier, so
the code following the comment doesn't do anything PLL or encoder
related. It only updates the primary plane now.

commit f3019a4d92
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Wed Oct 29 11:32:37 2014 +0200

    drm/i915: Remove crtc_mode_set() hook

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 11:37:17 +02:00
Chris Wilson
f6234c1dee drm/i915: Simplify object is-pinned checking for shrinker
When looking for viable candidates to shrink, we only want objects that
are not pinned. However to do so we performed a double iteration over
the vma in the objects, first looking for the pin-count, then looking
for allocations. We can do both at once and be slightly more explicit in
our validity test.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 10:58:34 +02:00
Chris Wilson
149c86e74f drm/i915: Allocate context objects from stolen
As we never expose context objects directly to userspace, we can forgo
allocating a first-class GEM object for them and prefer to use the
limited resource of reserved/stolen memory for them. Note this means
that their initial contents are undefined.

However, a downside of using stolen objects for execlists is that we
cannot access the physical address directly (thanks MCH!) which prevents
their use.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 10:41:24 +02:00
Chris Wilson
d7b9ca2f7a drm/i915: Remove request->uniq
We already assign a unique identifier to every request: seqno. That
someone felt like adding a second one without even mentioning why and
tweaking ABI smells very fishy.

Fixes regression from
commit b3a38998f0
Author: Nick Hoath <nicholas.hoath@intel.com>
Date:   Thu Feb 19 16:30:47 2015 +0000

    drm/i915: Fix a use after free, and unbalanced refcounting

v2: Rebase

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Nick Hoath <nicholas.hoath@intel.com>
Cc: Thomas Daniel <thomas.daniel@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jani Nikula <jani.nikula@intel.com>
[danvet: Fixup because different merge order.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-04-10 10:41:11 +02:00