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  1. 19 10月, 2015 1 次提交
  3. 13 10月, 2015 1 次提交
  5. 09 10月, 2015 1 次提交
  7. 06 10月, 2015 1 次提交
  9. 02 10月, 2015 1 次提交
    • S
      drm/i915/bxt: Modify BXT BLC according to VBT changes · 022e4e52
      由 Sunil Kamath 提交于 
      Latest VBT mentions which set of registers will be used for BLC,
as controller number field. Making use of this field in BXT
BLC implementation. Also, the registers are used in case control
pin indicates display DDI. Adding a check for this.
According to Bspec, BLC_PWM_*_2 uses the display utility pin for output.
To use backlight 2, enable the utility pin with mode = PWM
   v2: Jani's review comments
   addressed
       - Add a prefix _ to BXT BLC registers definitions.
       - Add "bxt only" comment for u8 controller
       - Remove control_pin check for DDI controller
       - Check for valid controller values
       - Set pipe bits in UTIL_PIN_CTL
       - Enable/Disable UTIL_PIN_CTL in enable/disable_backlight()
       - If BLC 2 is used, read active_low_pwm from UTIL_PIN polarity
   Satheesh's review comment addressed
       - If UTIL PIN is already enabled, BIOS would have programmed it. No
       need to disable and enable again.
   v3: Jani's review comments
       - add UTIL_PIN_PIPE_MASK and UTIL_PIN_MODE_MASK
       - Disable UTIL_PIN if controller 1 is used
       - Mask out UTIL_PIN_PIPE_MASK and UTIL_PIN_MODE_MASK before enabling
       UTIL_PIN
       - check valid controller value in intel_bios.c
       - add backlight.util_pin_active_low
       - disable util pin before enabling
   v4: Change for BXT-PO branch:
   Stubbed unwanted definition which was existing before
   because of DC6 patch.
   UTIL_PIN_MODE_PWM     (0x1b << 24)

v2: Fixed Jani's review comment.

v3: Split the backight PWM frequency programming into separate patch,
    in cases BIOS doesn't initializes it.

v4: Starting afresh and not modifying existing state for backlight, as
    per Jani's recommendation.

v5: Fixed Jani's review comment wrt util pin enable
Signed-off-by: NVandana Kannan <vandana.kannan@intel.com>
Signed-off-by: NSunil Kamath <sunil.kamath@intel.com>
Signed-off-by: NUma Shankar <uma.shankar@intel.com>
Reviewed-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      022e4e52
  11. 30 9月, 2015 7 次提交
  13. 25 9月, 2015 1 次提交
  15. 23 9月, 2015 4 次提交
    • T
      drm/i915: Enable querying offset of UV plane with intel_plane_obj_offset · dedf278c
      由 Tvrtko Ursulin 提交于 
      v2: Rebase.
Signed-off-by: NTvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      dedf278c
    • T
      drm/i915: Support planar formats in tile height calculations · fe47ea0c
      由 Tvrtko Ursulin 提交于 
      This will be needed for NV12 support.

v2: Rebase.
Signed-off-by: NTvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: NJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      fe47ea0c
    • P
      drm/i915: fix FBC for cases where crtc->base.y is non-zero · 2db3366b
      由 Paulo Zanoni 提交于 
      I only tested this on BDW and SKL, but since the register description
is the same ever since gen4, let's assume that all gens take the same
register format. If that's not true, then hopefully someone will
bisect a bug to this patch and we'll fix it.

Notice that the wrong fence offset register just means that the
hardware tracking will be wrong.

Testcases:
 - igt/kms_frontbuffer_tracking/fbc-1p-primscrn-pri-shrfb-draw-mmap-gtt
 - igt/kms_frontbuffer_tracking/fbc-2p-primscrn-pri-shrfb-draw-mmap-gtt

v2:
  - Add intel_crtc->adjusted_{x,y} so this code can work independently
    of intel_gen4_compute_page_offset(). (Ville).
  - This version also works on SKL.
Signed-off-by: NPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      2db3366b
    • S
      drm/i915: Check live status before reading edid · 237ed86c
      由 Sonika Jindal 提交于 
      The Bspec is very clear that Live status must be checked about before
trying to read EDID over DDC channel. This patch makes sure that HDMI
EDID is read only when live status is up.

The live status doesn't seem to perform very consistent across various
platforms when tested with different monitors. The reason behind that is
some monitors are late to provide right voltage to set live_status up.
So, after getting the interrupt, for a small duration, live status reg
fluctuates, and then settles down showing the correct staus.

This is explained here in, in a rough way:
HPD line  ________________
			 |\ T1 = Monitor Hotplug causing IRQ
			 | \______________________________________
			 | |
                         | |
			 | |   T2 = Live status is stable
			 | |  _____________________________________
			 | | /|
Live status _____________|_|/ |
			 | |  |
			 | |  |
			 | |  |
			T0 T1  T2

(Between T1 and T2 Live status fluctuates or can be even low, depending on
 the monitor)

After several experiments, we have concluded that a max delay
of 30ms is enough to allow the live status to settle down with
most of the monitors. This total delay of 30ms has been split into
a resolution of 3 retries of 10ms each, for the better cases.

This delay is kept at 30ms, keeping in consideration that, HDCP compliance
expect the HPD handler to respond a plug out in 100ms, by disabling port.

v2: Adding checks for VLV/CHV as well. Reusing old ibx and g4x functions
to check digital port status. Adding a separate function to get bxt live
status (Daniel)
v3: Using intel_encoder->hpd_pin to check the live status (Siva)
Moving the live status read to intel_hdmi_probe and passing parameter
to read/not to read the edid. (me)
v4:
* Added live status check for all platforms using
intel_digital_port_connected.
* Rebased on top of Jani's DP cleanup series
* Some monitors take time in setting the live status. So retry for few
times if this is a connect HPD
v5: Removed extra "drm/i915" from commit message. Adding Shashank's sob
    which was missed.
v6: Drop the (!detect_edid && !live_status check) check because for DDI
ports which are enumerated as hdmi as well as DP, we don't have a
mechanism to differentiate between DP and hdmi inside the encoder's
hot_plug. This leads to call to the hdmi's hot_plug hook for DP as well
as hdmi which leads to issues during unplug because of the above check.
v7: Make intel_digital_port_connected global in this patch, some
reformatting of while loop, adding a print when live status is not
up. (Rodrigo)
v8: Rebase it on nightly which involved skipping the hot_plug hook for now
and letting the live_status check happen in detect until the hpd handling
part is finalized (Daniel)
Signed-off-by: NShashank Sharma <shashank.sharma@intel.com>
Signed-off-by: NSonika Jindal <sonika.jindal@intel.com>
Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      237ed86c
  17. 17 9月, 2015 1 次提交
  19. 14 9月, 2015 1 次提交
  21. 10 9月, 2015 1 次提交
  23. 08 9月, 2015 1 次提交
  25. 04 9月, 2015 1 次提交
  27. 02 9月, 2015 3 次提交
  29. 01 9月, 2015 1 次提交
  31. 26 8月, 2015 6 次提交
    • V
      drm/i915: Trick CL2 into life on CHV when using pipe B with port B · b0b33846
      由 Ville Syrjälä 提交于 
      Normmally the common lane in a PHY channel gets powered up when some
of the data lanes get powered up. But when we're driving port B with
pipe B we don't want to enabled any of the data lanes, and just want
the DPLL in the common lane to be active.

To make that happens we have to temporarily enable some data lanes
after which we can access the DPLL registers in the common lane. Once
the pipe is up and running we can drop the power override on the data
lanes allowing them to shut down. From this point forward the common
lane will in fact stay powered on until the data lanes in the other
channel get powered down.

Ville's extended explanation from the review thread:

On Wed, Aug 19, 2015 at 07:47:41AM +0530, Deepak wrote:
> One Q, why only for port B? Port C is also in same common lane right?

Port B is in the first PHY channel which also houses CL1. CL1 always
powers up whenever any lanes in either PHY channel are powered up.
CL2 only powers up if lanes in the second channel (ie. the one with
port C) powers up.

So in this scenario (pipe B->port B) we want the DPLL from CL2, but
ideally we only want to power up the lanes for port B. Powering up
port B lanes will only power up CL1, but as we need CL2 instead we
need to, temporarily, power up some lanes in port C as well.

Crossing the streams the other way (pipe A->port C) is not a problem
since CL1 powers up whenever anything else powers up. So powering up
some port C lanes is enough on its own to make the CL1 DPLL
operational, even though CL1 and the lanes live in separate channels.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NDeepak S <deepak.s@linux.intel.com>
[danvet: Amend commit message with extended explanation.]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      b0b33846
    • V
      drm/i915: Implement PHY lane power gating for CHV · e0fce78f
      由 Ville Syrjälä 提交于 
      Powergate the PHY lanes when they're not needed. For HDMI all four lanes
are needed always, but for DP we can enable only the needed lanes. To
power down the unused lanes we use some power down override bits in the
DISPLAY_PHY_CONTROL register. Without the overrides it appears that the
hardware always powers on all the lanes. When the port is disabled the
power down override is not needed and the lanes will shut off on their
own. That also means the override is critical to actually be able to
access the DPIO registers before the port is actually enabled.

Additionally the common lanes will power down when not needed. CL1
remains on as long as anything else is on, CL2 will shut down when
all the lanes in the same channel will shut down. There is one exception
for CL2 that will be dealt in a separate patch for clarity.

With potentially some lanes powered down, the DP code now has to check
the number of active lanes before accessing PCS/TX registers. All
registers in powered down blocks will reads as 0xffffffff, and soe we
would drown in warnings from vlv_dpio_read() if we allowed the code
to access all those registers.

Another important detail in the DP code is the "TX latency optimal"
setting. Normally the second TX lane acts as some kind of reset master,
with the other lanes as slaves. But when only a single lane is enabled,
that single lane obviously has to be the master.

A bit of extra care is needed to reconstruct the initial state of the
DISPLAY_PHY_CONTROL register since it can't be read safely. So instead
read the actual lane status from the DPLL/PHY_STATUS registers and
use that to determine which lanes ought to be powergated initially.

We also need to switch the PHY power modes to "deep PSR" to avoid
a hard system hang when powering down the single channel PHY.

Also sprinkle a few debug prints around so that we can monitor the
DISPLAY_PHY_STATUS changes without having to read it and risk
corrupting it.

v2: Add locking to chv_powergate_phy_lanes()
v3: Actually enable dynamic powerdown in the PHY and deal with the
    fallout
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NDeepak S <deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      e0fce78f
    • J
      drm/i915: move ibx_digital_port_connected to intel_dp.c · b93433cc
      由 Jani Nikula 提交于 
      The function can be made static there. No functional changes.
Reviewed-by: NDurgadoss R <durgadoss.r@intel.com>
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      b93433cc
    • V
      drm/i915: Add vlv_dport_to_phy() · 65d64cc5
      由 Ville Syrjälä 提交于 
      Add vlv_dport_to_phy() and fix up the return values of
vlv_dport_to_channel() and vlv_pipe_to_channel() to use
the appropriate enums.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NDeepak S <deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      65d64cc5
    • V
      drm/i915: Add encoder->post_pll_disable() hooks and move CHV clock buffer disables there · d6db995f
      由 Ville Syrjälä 提交于 
      Move the CHV clock buffer disable from chv_disable_pll() to the new
encoder .post_pll_disable() hook. This is more symmetric since the
clock buffer enable happens from the .pre_pll_enable() hook.

We'll have more use for the new hook soon.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NDeepak S <deepak.s@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      d6db995f
    • V
      drm/i915: Put back lane_count into intel_dp and add link_rate too · 901c2daf
      由 Ville Syrjälä 提交于 
      With MST there won't be a crtc assigned to the main link encoder, so
trying to dig up the pipe_config from there is a recipe for an oops.

Instead store the parameters (lane_count and link_rate) in the encoder,
and use those values during link training etc. Since those parameters
are now assigned only when the link is actually enabled,
.compute_config() won't clobber them as it did before.

Hardware state readout is still bonkers though as we don't transfer the
link parameters from pipe_config intel_dp. We should do that during
encoder sanitation. But since we don't even do a proper job of reading
out the main link encoder state for MST there's littel point in
worrying about this now.

Fixes a regression with MST caused by:
 commit 90a6b7b0
 Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
 Date:   Mon Jul 6 16:39:15 2015 +0300

    drm/i915: Move intel_dp->lane_count into pipe_config

v2: Different apporoach that should keep intel_dp_check_mst_status()
    somewhat less oopsy

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reported-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      901c2daf
  33. 15 8月, 2015 5 次提交
  35. 14 8月, 2015 3 次提交