firefly-linux-kernel-4.4.55.git
8 years agodrm/i915: Refactor ilk_update_wm (v3)
Ville Syrjälä [Thu, 24 Sep 2015 22:53:14 +0000 (15:53 -0700)]
drm/i915: Refactor ilk_update_wm (v3)

Split ilk_update_wm() into two parts; one doing the programming
and the other the calculations.

v2: Fix typo in commit message

v3 (by Matt): Heavily rebased for current codebase.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Drop intel_update_sprite_watermarks
Matt Roper [Thu, 24 Sep 2015 22:53:13 +0000 (15:53 -0700)]
drm/i915: Drop intel_update_sprite_watermarks

The only platform that still has an update_sprite_wm entrypoint is SKL;
on SKL, intel_update_sprite_watermarks just updates intel_plane->wm and
then performs a regular watermark update.  However intel_plane->wm is
only used to update a couple fields in intel_wm_config, and those fields
are never used by the SKL code, so on SKL an update_sprite_wm is
effectively identical to an update_wm call.  Since we're already
ensuring that the regular intel_update_wm is called any time we'd try to
call intel_update_sprite_watermarks, the whole call is redundant and can
be dropped.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/ivb: Move WaCxSRDisabledForSpriteScaling w/a to atomic check
Matt Roper [Thu, 24 Sep 2015 22:53:12 +0000 (15:53 -0700)]
drm/i915/ivb: Move WaCxSRDisabledForSpriteScaling w/a to atomic check

Determine whether we need to apply this workaround at atomic check time
and just set a flag that will be used by the main watermark update
routine.

Moving this workaround into the atomic framework reduces
ilk_update_sprite_wm() to just a standard watermark update, so drop it
completely and just ensure that ilk_update_wm() is called whenever a
sprite plane is updated in a way that would affect watermarks.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Eliminate usage of pipe_wm_parameters from SKL-style WM (v3)
Matt Roper [Thu, 24 Sep 2015 22:53:11 +0000 (15:53 -0700)]
drm/i915/skl: Eliminate usage of pipe_wm_parameters from SKL-style WM (v3)

Just pull the info out of the state structures rather than staging
it in an additional set of structures.  To make this more
straightforward, we change the signature of several internal WM
functions to take the crtc state as a parameter.

v2:
 - Don't forget to skip cursor planes on a loop in the DDB allocation
   function to match original behavior.  (Ander)
 - Change a use of intel_crtc->active to cstate->active.  They should
   be identical, but it's better to be consistent.  (Ander)
 - Rework more function signatures to pass states rather than crtc for
   consistency. (Ander)

v3:
  - Add missing "+ 1" to skl_wm_plane_id()'s 'overlay' case. (Maarten)
  - Packed formats should pass '0' to drm_format_plane_cpp(), not 1.
    (Maarten)
  - Drop unwanted WARN_ON() for disabled planes when calculating data
    rate for SKL.  (Maarten)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Simplify wm structures slightly (v2)
Matt Roper [Thu, 24 Sep 2015 22:53:10 +0000 (15:53 -0700)]
drm/i915/skl: Simplify wm structures slightly (v2)

A bunch of SKL watermark-related structures have the cursor plane as a
separate entry from the rest of the planes.  Since a previous patch
updated I915_MAX_PLANES such that those plane arrays now have a slot for
the cursor, update the code to use the new slot in the existing plane
arrays and kill off the cursor-specific structures.

There shouldn't be any functional change here; this is just shuffling
around how the data is stored in some of the data structures.  The whole
patch is generated with Coccinelle via the following semantic patch:

        @@ struct skl_pipe_wm_parameters WMP; @@
        - WMP.cursor
        + WMP.plane[PLANE_CURSOR]

        @@ struct skl_pipe_wm_parameters *WMP; @@
        - WMP->cursor
        + WMP->plane[PLANE_CURSOR]

        @@ @@
        struct skl_pipe_wm_parameters {
        ...
        - struct intel_plane_wm_parameters cursor;
        ...
        };

        @@
        struct skl_ddb_allocation DDB;
        expression E;
        @@
        - DDB.cursor[E]
        + DDB.plane[E][PLANE_CURSOR]

        @@
        struct skl_ddb_allocation *DDB;
        expression E;
        @@
        - DDB->cursor[E]
        + DDB->plane[E][PLANE_CURSOR]

        @@ @@
        struct skl_ddb_allocation {
        ...
        - struct skl_ddb_entry cursor[I915_MAX_PIPES];
        ...
        };

        @@
        struct skl_wm_values WMV;
        expression E1, E2;
        @@
        (
        - WMV.cursor[E1][E2]
        + WMV.plane[E1][PLANE_CURSOR][E2]
        |
        - WMV.cursor_trans[E1]
        + WMV.plane_trans[E1][PLANE_CURSOR]
        )

        @@
        struct skl_wm_values *WMV;
        expression E1, E2;
        @@
        (
        - WMV->cursor[E1][E2]
        + WMV->plane[E1][PLANE_CURSOR][E2]
        |
        - WMV->cursor_trans[E1]
        + WMV->plane_trans[E1][PLANE_CURSOR]
        )

        @@ @@
        struct skl_wm_values {
        ...
        - uint32_t cursor[I915_MAX_PIPES][8];
        ...
        - uint32_t cursor_trans[I915_MAX_PIPES];
        ...
        };

        @@ struct skl_wm_level WML; @@
        (
        - WML.cursor_en
        + WML.plane_en[PLANE_CURSOR]
        |
        - WML.cursor_res_b
        + WML.plane_res_b[PLANE_CURSOR]
        |
        - WML.cursor_res_l
        + WML.plane_res_l[PLANE_CURSOR]
        )

        @@ struct skl_wm_level *WML; @@
        (
        - WML->cursor_en
        + WML->plane_en[PLANE_CURSOR]
        |
        - WML->cursor_res_b
        + WML->plane_res_b[PLANE_CURSOR]
        |
        - WML->cursor_res_l
        + WML->plane_res_l[PLANE_CURSOR]
        )

        @@ @@
        struct skl_wm_level {
        ...
        - bool cursor_en;
        ...
        - uint16_t cursor_res_b;
        - uint8_t cursor_res_l;
        ...
        };

v2: Use a PLANE_CURSOR enum entry rather than making the code reference
    I915_MAX_PLANES or I915_MAX_PLANES+1, which was confusing.  (Ander)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Determine I915_MAX_PLANES from plane enum
Matt Roper [Thu, 24 Sep 2015 22:53:09 +0000 (15:53 -0700)]
drm/i915: Determine I915_MAX_PLANES from plane enum

Let the compiler figure out what I915_MAX_PLANES is from 'enum plane' so
that we don't need a separate #define.

While we're at it, add the cursor plane to the enum.  This will cause
I915_MAX_PLANES to now include the cursor plane in its count (it didn't
previously).   This change is safe since we currently only use this
value in array declarations (never in the actual code logic); we just
wind up allocating slightly more memory than we need to.  A followup
patch will cause various parts of the code to start using the extra
array element where appropriate.

(This patch probably should have been squashed with the followup patch,
but I couldn't figure out how to get Coccinelle to modify enum
declarations...)

Suggested-by: Ander Conselvan De Oliveira <conselvan2@gmail.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Eliminate usage of pipe_wm_parameters from ILK-style WM (v2)
Matt Roper [Thu, 24 Sep 2015 22:53:08 +0000 (15:53 -0700)]
drm/i915: Eliminate usage of pipe_wm_parameters from ILK-style WM (v2)

Just pull the info out of the CRTC state structure rather than staging
it in an additional structure.

Note that we use cstate->active rather than intel_crtc->active which may
appear to be a change in behavior.  However since we're no longer trying
to recalculate watermarks during the "pipe off" stage of a modeset,
intel_crtc->active and cstate->active should always be identical when
watermarks are calculated (at least for ILK-style platforms).

v2: Clarify reasoning for cstate->active and add a WARN_ON to the code
    to assert that it really is always identical to intel_crtc->active
    as expected.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Eliminate usage of plane_wm_parameters from ILK-style WM code (v2)
Matt Roper [Thu, 24 Sep 2015 22:53:07 +0000 (15:53 -0700)]
drm/i915: Eliminate usage of plane_wm_parameters from ILK-style WM code (v2)

Just pull the info out of the plane state structure rather than staging
it in an additional structure.

v2: Add 'visible' condition to sprites_scaled so that we don't limit the
    WM level when the sprite isn't enabled.  (Ville)

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by(v1): Ander Conselvan de Oliveira <conselvan2@gmail.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Drop redundant watermark programming
Matt Roper [Thu, 24 Sep 2015 22:53:06 +0000 (15:53 -0700)]
drm/i915: Drop redundant watermark programming

In commit

        commit e4ca061275ec6a48b66c6edebe08644e666994c0
        Author: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
        Date:   Wed Jul 8 15:31:52 2015 +0200

            drm/i915: Don't forget to mark crtc as inactive after disable

we added extra watermark updates to all of the .crtc_disable()
entrypoints to avoid problems problems with system resume on SKL.  Those
disable entrypoints are currently called in just two places in the
driver: intel_atomic_commit (i.e., during a modeset) and
intel_crtc_disable_noatomic (which is called during hardware readout).
It seems that this extra watermark recalculation should only be
important in the latter case (which happens during a resume operation);
the former case should always have appropriate watermark programming
happening at other points in the modeset sequence.

Let's move the watermark update out of the .crtc_disable() entrypoints
and place it directly in intel_crtc_disable_noatomic() so that it only
happens on S3 resume and not during a regular modeset (since the
existing watermark handling should properly update watermarks during
normal atomic commits).

Cc: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/bxt: fix RC6 residency time calculation
Imre Deak [Tue, 29 Sep 2015 13:28:46 +0000 (16:28 +0300)]
drm/i915/bxt: fix RC6 residency time calculation

The RC6 residency time unit is 833.33ns on BXT according to the
specification, so update the calculation accordingly. Use the same way
as CHV/VLV to divide by the corresponding frequency, as I think this is
the more natural unit for what the HW does internally.

v2:
- add missing IS_BROXTON check (Ville)

Testcase: igt/pm_rc6_residency
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>
8 years agodrm/i915/guc: Media domain bit needed when notify GuC rc6 state
Alex Dai [Fri, 25 Sep 2015 18:46:56 +0000 (11:46 -0700)]
drm/i915/guc: Media domain bit needed when notify GuC rc6 state

GuC expects two bits for Render and Media domain separately when
driver sends data via host2guc SAMPLE_FORCEWAKE. Bit 0 is for
Render and bit 1 is for Media domain.

v2: Keep sync with code for WaRsDoubleRc6WrlWithCoarsePowerGating

v1: Add parameters definition to avoid magic value

Signed-off-by: Alex Dai <yu.dai@intel.com>
Reviewed-by: Tom O'Rourke <Tom.O'Rourke@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: s/_TRANSA_CHICKEN/TRANS_CHICKEN(PIPE_A)/
Ville Syrjälä [Fri, 18 Sep 2015 17:03:31 +0000 (20:03 +0300)]
drm/i915: s/_TRANSA_CHICKEN/TRANS_CHICKEN(PIPE_A)/

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: s/_FDI_RXA_.../FDI_RX_...(PIPE_A)/
Ville Syrjälä [Fri, 18 Sep 2015 17:03:30 +0000 (20:03 +0300)]
drm/i915: s/_FDI_RXA_.../FDI_RX_...(PIPE_A)/

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/bdw: Check for slice, subslice and EU count for BDW
Łukasz Daniluk [Fri, 25 Sep 2015 09:54:58 +0000 (11:54 +0200)]
drm/i915/bdw: Check for slice, subslice and EU count for BDW

Added checks for available slices, subslices and EUs for Broadwell. This
information is filled in intel_device_info and is available to user with
GET_PARAM.
Added checks for enabled slices, subslices and EU for Broadwell. This
information is based on available counts but takes power gated slices
into account. It can be read in debugfs.
Introduce new register defines that contain information on slices on
Broadwell.

v2:
- Introduce GT_SLICE_INFO register
- Change Broadwell sseu_device_status function to use GT_SLICE_INFO
  register instead of RPCS register
- Undo removal of dev_priv variables in Cherryview and Gen9
  sseu_device_satus functions

v3:
- Fix style issues

v4:
- Corrected comment
- Reverted reordering of defines

Cc: Jeff Mcgee <jeff.mcgee@intel.com>
Cc: Arun Siluvery <arun.siluvery@linux.intel.com>
Signed-off-by: Łukasz Daniluk <lukasz.daniluk@intel.com>
Reviewed-by: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm: i915: drop null test before destroy functions
Julia Lawall [Sun, 13 Sep 2015 12:15:25 +0000 (14:15 +0200)]
drm: i915: drop null test before destroy functions

Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression x; @@
-if (x != NULL)
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: make backlight hooks connector specific
Jani Nikula [Mon, 14 Sep 2015 11:03:48 +0000 (14:03 +0300)]
drm/i915: make backlight hooks connector specific

Previously we've relied on having basically one backlight and one
backlight type per platform. This is already a bit quirky with PMIC PWM
support on VLV/CHV platforms with MIPI DSI. In the foreseeable future
we'll have at least DPCD based backlight control on eDP and DCS command
based backlight control on MIPI DSI. Backlight is becoming more and more
connector specific, so reflect this fact by making the backlight control
hooks connector specific.

This enables further work to reuse generic backlight code in
intel_panel.c while adding more specific backlight code accessed via the
hooks.

Cc: Deepak M <m.deepak@intel.com>
Cc: Yetunde Adebisi <yetundex.adebisi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Deepak M <m.deepak@intel.com>
Reviewed-by: Yetunde Adebisi <yetundex.adebisi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/ddi: use switch case instead of if ladder for ddi_get_encoder_port
Jani Nikula [Tue, 29 Sep 2015 07:24:26 +0000 (10:24 +0300)]
drm/i915/ddi: use switch case instead of if ladder for ddi_get_encoder_port

Make the alternatives stand  out better.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/ddi: warn instead of oops on invalid ddi encoder type
Jani Nikula [Tue, 29 Sep 2015 07:24:25 +0000 (10:24 +0300)]
drm/i915/ddi: warn instead of oops on invalid ddi encoder type

It's more useful to limp on than bring the kernel down. Hitting this is
a more likely event with BXT DSI, although care should be taken not to
call the function for DSI.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Use czclk_freq in vlv c0 residency calculations
Ville Syrjälä [Thu, 24 Sep 2015 20:29:20 +0000 (23:29 +0300)]
drm/i915: Use czclk_freq in vlv c0 residency calculations

Replace the use of mem_freq/4 with czclk_freq in the vlv c0 residency
calculations.

Also deal with VLV_COUNT_RANGE_HIGH which affects all RCx residency
counters. We have just enough bits to do this without intermediate
divisions.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Simplify vlv/chv rc6 residency calculation
Ville Syrjälä [Mon, 28 Sep 2015 20:43:43 +0000 (23:43 +0300)]
drm/i915: Simplify vlv/chv rc6 residency calculation

We have the czclk frequency in dev_priv now, so let's just use it
when converting the rc6 counters to milliseconds. This eliminates
a bunch of hairy code that essentially tries to extract the czclk
frequency using yet another method.

v2: Fix typos in commit message (Imre)

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Read czclk from CCK on vlv/chv
Ville Syrjälä [Thu, 24 Sep 2015 20:29:18 +0000 (23:29 +0300)]
drm/i915: Read czclk from CCK on vlv/chv

As with the cdclk, read out czclk from CCK as well. This gives us the
real current value and avoids having to decode fuses and whatnot.

Also store it in kHz under dev_priv like we do for cdlck since it's not
just an rps related clock, and having it in kHz is more
standard/convenient for some things.

Imre also pointed out that we currently fail to read czclk on VLV, which
means the PFI credit programming isn't working as expected.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Renaming CCK related reg definitions
Vandana Kannan [Thu, 24 Sep 2015 20:29:17 +0000 (23:29 +0300)]
drm/i915: Renaming CCK related reg definitions

Rename the DISPLAY_TRUNK_* and DISPLAY_FREQUENCY_* bits to CCK_... instead
of DISPLAY_... to make it clear they apply to all CCK clock control registers.
Suggested by Ville.

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Fix comparison bug
Rasmus Villemoes [Mon, 28 Sep 2015 21:08:50 +0000 (23:08 +0200)]
drm/i915: Fix comparison bug

->stolen->start has type u64 aka unsigned long long; relying on the
difference (effectively cast to int) for sorting is wrong.

It wouldn't be a problem in practice if the values compared are always
within INT_MAX of each other (so that the difference is actually
representable in an int), but 440fd5283a87 ("drm/mm: Support 4 GiB and
larger ranges") strongly suggests that's not the case.

Note: atm we don't support more than about 1G of stolen, so this is
impossible currenlty.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
[danvet: Add note that this is impossible currently.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move WaHdcDisableFetchWhenMasked to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:46 +0000 (17:40 +0100)]
drm/i915/gen8: Move WaHdcDisableFetchWhenMasked to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move WaForceEnableNonCoherent to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:45 +0000 (17:40 +0100)]
drm/i915/gen8: Move WaForceEnableNonCoherent to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move GEN7_GT_MODE WA to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:44 +0000 (17:40 +0100)]
drm/i915/gen8: Move GEN7_GT_MODE WA to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move Wa4x4STCOptimizationDisable to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:43 +0000 (17:40 +0100)]
drm/i915/gen8: Move Wa4x4STCOptimizationDisable to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move HiZ RAW stall optimization disable WA to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:42 +0000 (17:40 +0100)]
drm/i915/gen8: Move HiZ RAW stall optimization disable WA to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move WaDisablePartialInstShootdown to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:40 +0000 (17:40 +0100)]
drm/i915/gen8: Move WaDisablePartialInstShootdown to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move WaDisableAsyncFlipPerfMode to common init fn
Arun Siluvery [Fri, 25 Sep 2015 16:40:39 +0000 (17:40 +0100)]
drm/i915/gen8: Move WaDisableAsyncFlipPerfMode to common init fn

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Move INSTPM WA to common function
Arun Siluvery [Fri, 25 Sep 2015 16:40:38 +0000 (17:40 +0100)]
drm/i915/gen8: Move INSTPM WA to common function

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen8: Add gen8_init_workarounds for common WA
Arun Siluvery [Fri, 25 Sep 2015 16:40:37 +0000 (17:40 +0100)]
drm/i915/gen8: Add gen8_init_workarounds for common WA

WA in this function should be ordered based on register address.
The following order is suggested (Ville),

instpm
mi_mode
row chicken
half slice chicken
common slice chicken
hdc chicken
cache_mode_0
cache_mode_1
gt_mode

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Remove WaDisableVFUnitClockGating
Arun Siluvery [Fri, 25 Sep 2015 13:33:44 +0000 (14:33 +0100)]
drm/i915/skl: Remove WaDisableVFUnitClockGating

Dropping it because it is for pre-production stepping, also removed
bit definition in i915_reg.h as it is not used anywhere else.

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Keep #define as Ville suggested.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Remove WaSetGAPSunitClckGateDisable
Arun Siluvery [Fri, 25 Sep 2015 13:33:43 +0000 (14:33 +0100)]
drm/i915/skl: Remove WaSetGAPSunitClckGateDisable

Dropping it because it is for pre-production stepping, also removed
bit definition in i915_reg as it is not used anywhere else.

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Keep define as Ville suggested.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Remove WaDisableSDEUnitClockGating
Arun Siluvery [Fri, 25 Sep 2015 13:33:42 +0000 (14:33 +0100)]
drm/i915/skl: Remove WaDisableSDEUnitClockGating

Dropping it because it is for pre-production stepping.

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/bxt: Add WaStoreMultiplePTEenable name
Arun Siluvery [Fri, 25 Sep 2015 13:33:40 +0000 (14:33 +0100)]
drm/i915/bxt: Add WaStoreMultiplePTEenable name

Updated WA with the name.

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen9: Merge two WA as they part of same register
Arun Siluvery [Fri, 25 Sep 2015 13:33:37 +0000 (14:33 +0100)]
drm/i915/gen9: Merge two WA as they part of same register

Merge Wa4x4STCOptimizationDisable and WaDisablePartialResolveInVc to save
an entry in WA array.

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/gen9: Handle error returned by gen9_init_workarounds
Arun Siluvery [Fri, 25 Sep 2015 13:33:35 +0000 (14:33 +0100)]
drm/i915/gen9: Handle error returned by gen9_init_workarounds

Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Add CD and pixel clock information
Mika Kahola [Fri, 25 Sep 2015 11:00:32 +0000 (14:00 +0300)]
drm/i915: Add CD and pixel clock information

This patch adds information of current and maximum CD clock
frequency and pixel clock frequency information on 'i915_debugfs.c'.

v2:
- combined seperate patches for current CD clock, maximum CD clock
  and maximum pixel clock
- space added between the frequency value and the unit

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: s/DDI_BUF_CTL_A/DDI_BUF_CTL(PORT_A)/
Ville Syrjälä [Fri, 18 Sep 2015 17:03:35 +0000 (20:03 +0300)]
drm/i915: s/DDI_BUF_CTL_A/DDI_BUF_CTL(PORT_A)/

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Add VLV_HDMIB etc. which already include VLV_DISPLAY_BASE
Ville Syrjälä [Fri, 18 Sep 2015 17:03:34 +0000 (20:03 +0300)]
drm/i915: Add VLV_HDMIB etc. which already include VLV_DISPLAY_BASE

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: s/_CURACNTR/CURCNTR(PIPE_A)/
Ville Syrjälä [Tue, 22 Sep 2015 16:47:51 +0000 (19:47 +0300)]
drm/i915: s/_CURACNTR/CURCNTR(PIPE_A)/

v2: Deal with _CURABASE too

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Parametrize PALETTE and LGC_PALETTE
Ville Syrjälä [Fri, 18 Sep 2015 17:03:28 +0000 (20:03 +0300)]
drm/i915: Parametrize PALETTE and LGC_PALETTE

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Include MCHBAR_MIRROR_BASE in ILK_GDSR
Ville Syrjälä [Fri, 18 Sep 2015 17:03:27 +0000 (20:03 +0300)]
drm/i915: Include MCHBAR_MIRROR_BASE in ILK_GDSR

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Always use GEN8_RING_PDP_{LDW, UDW} instead of hand rolling the register...
Ville Syrjälä [Fri, 18 Sep 2015 17:03:26 +0000 (20:03 +0300)]
drm/i915: Always use GEN8_RING_PDP_{LDW, UDW} instead of hand rolling the register offsets

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Add LO/HI PRIVATE_PAT registers
Ville Syrjälä [Fri, 18 Sep 2015 17:03:25 +0000 (20:03 +0300)]
drm/i915: Add LO/HI PRIVATE_PAT registers

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Parametrize UOS_RSA_SCRATCH
Ville Syrjälä [Fri, 18 Sep 2015 17:03:24 +0000 (20:03 +0300)]
drm/i915: Parametrize UOS_RSA_SCRATCH

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Add HDMI aspect ratio property for SDVO
Ville Syrjälä [Fri, 25 Sep 2015 13:39:30 +0000 (16:39 +0300)]
drm/i915: Add HDMI aspect ratio property for SDVO

Handle the HDMI aspect ratio property the same way in the SDVO code
as we handle it in the HDMI code.

v2: Remove stray whitespace change

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Constify adjusted_mode
Ville Syrjälä [Tue, 8 Sep 2015 10:40:49 +0000 (13:40 +0300)]
drm/i915: Constify adjusted_mode

Make adjusted_mode const whereever we don't have to modify it. This only
covers cases when we have a local adjusted_mode variable, and doesn't
make any difference for cases where we just dereference
pipe_config->adjusted_mode.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Move HDMI aspect ratio setup to .compute_config()
Ville Syrjälä [Tue, 8 Sep 2015 10:40:48 +0000 (13:40 +0300)]
drm/i915: Move HDMI aspect ratio setup to .compute_config()

We shouldn't frob adjusted_mode after .compute_config(), so move the
infoframe aspect ratio setup to .compute_config() from
intel_hdmi_set_avi_infoframe().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Always use crtc_ timings when dealing with adjustead_mode
Ville Syrjälä [Fri, 25 Sep 2015 13:38:56 +0000 (16:38 +0300)]
drm/i915: Always use crtc_ timings when dealing with adjustead_mode

The adjustead_mode crtc_ timings are what we will program into the hardware,
so it's those timings we should be looking practically everywhere.

The normal and crtc_ timings should differ only when stere doubling is
used. In that case the normal timings are the orignal non-doubled
timigns, and crtc_ timings are the doubled timings used by the hardware.

The only case where we continue to look at the normal timings is when we
pass the adjusted_mode to drm_match_{cea,hdmi}_mode() to find the VIC.
drm_edid keeps the modes aronund in the non-double form only, so it
needs the non-double timings to match against.

Done with sed
's/adjusted_mode->\([vhVH]\)/adjusted_mode->crtc_\1/g'
's/adjusted_mode->clock/adjusted_mode->crtc_clock/g'
with a manual s/VDisplay/vdisplay/ within the comment in intel_dvo.c

v2: Update due to intel_dsi.c changes

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: s/mode/adjusted_mode/ in functions that really get passed the adjusted_mode
Ville Syrjälä [Fri, 25 Sep 2015 13:37:43 +0000 (16:37 +0300)]
drm/i915: s/mode/adjusted_mode/ in functions that really get passed the adjusted_mode

Rename the function argument to 'adjusted_mode' whenever the function
only ever gets passed the adjusted_mode.

v2: Update due to intel_dsi.c changes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: export size_is_valid() from __intel_fbc_update()
Paulo Zanoni [Wed, 23 Sep 2015 15:52:24 +0000 (12:52 -0300)]
drm/i915: export size_is_valid() from __intel_fbc_update()

Make the giant function a little less giant.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add pipe_ prefix as suggested by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: extract fbc_supported()
Paulo Zanoni [Wed, 23 Sep 2015 15:52:27 +0000 (12:52 -0300)]
drm/i915: extract fbc_supported()

Make it clear that we're checking whether FBC is supported or not. The
fact that the vfunc is not NULL is just a consequence.

Another name option would have been fbc_initialized().

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: don't use the first stolen page on Broadwell
Paulo Zanoni [Wed, 23 Sep 2015 15:52:22 +0000 (12:52 -0300)]
drm/i915: don't use the first stolen page on Broadwell

The spec says we just can't use it.

v2:
  - Add WA name (Ville).
  - Add a big comment explaining that we still didn't fix the problem
    where we inherit a framebuffer on the first page (Chris, Ville).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Add primary plane to mask if it's visible
Maarten Lankhorst [Wed, 23 Sep 2015 14:11:41 +0000 (16:11 +0200)]
drm/i915: Add primary plane to mask if it's visible

This fixes the warnings like

"plane A assertion failure, should be disabled but not"

that on the initial modeset during boot. This can happen if
the primary plane is enabled by the firmware, but inheriting
it fails because the DMAR is active or for other reasons.

Most likely caused by

commit 36750f284b3a4f19b304fda1bb7d6e9e1275ea8d
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Mon Jun 1 12:49:54 2015 +0200

    drm/i915: update plane state during init

This is the 4.4 version of

commit 721a09f7393de6c28a07516dccd654c6e995944a
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Tue Sep 15 14:28:54 2015 +0200

    drm/i915: Add primary plane to mask if it's visible

Reported-by: Andreas Reis <andreas.reis@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91429
Reported-and-tested-by: Emil Renner Berthing <kernel@esmil.dk>
Tested-by: Andreas Reis <andreas.reis@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Parametrize fence registers
Ville Syrjälä [Mon, 21 Sep 2015 15:05:14 +0000 (18:05 +0300)]
drm/i915: Parametrize fence registers

v2: Hide the 945 vs. rest of gen2/3 difference in the macro

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/bxt: Set oscaledcompmethod to enable scale value
Sonika Jindal [Thu, 24 Sep 2015 04:52:54 +0000 (10:22 +0530)]
drm/i915/bxt: Set oscaledcompmethod to enable scale value

Bspec update tells that we have to enable oscaledcompmethod instead of
ouniqetrangenmethod for enabling scale value during swing programming.

v2: Adding back 'don't care' values to bxt_ddi_translations_dp and add
error message if ouniquetrangemethod was set (Imre)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>(v1)
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/bxt: eDP low vswing support
Sonika Jindal [Thu, 24 Sep 2015 04:54:56 +0000 (10:24 +0530)]
drm/i915/bxt: eDP low vswing support

Adding voltage swing table for edp to support low vswings.

v2: Rebased.

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: fixup runtime PM handling v2
Jesse Barnes [Wed, 23 Sep 2015 21:37:17 +0000 (14:37 -0700)]
drm/i915: fixup runtime PM handling v2

According to the PCI docs and Rafael, we don't need to be doing explicit
enables and disables in our init and teardown routines, as they're taken
care of by the PCI core.  So drop the pm_runtime_disable() at teardown
and pm_runtime_set_active() at init.

This fixes one failure of the basic-pci-d3-state test on my BYT.

v2: drop extra get_noresume() and put_noidle() (Rafael)

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/guc: Fix a bug in GuC status check
Alex Dai [Tue, 22 Sep 2015 20:48:40 +0000 (13:48 -0700)]
drm/i915/guc: Fix a bug in GuC status check

Bit 16 of GuC status indicates resuming from RC6. The LAPIC_DONE
status is a reliable readiness flag only when resuming from RC6.
This fix a racing issue that allocation of doorbell fails whilst
GuC init is not finished.

Signed-off-by: Alex Dai <yu.dai@intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Always call the adjusted mode 'adjusted_mode'
Ville Syrjälä [Tue, 8 Sep 2015 10:40:45 +0000 (13:40 +0300)]
drm/i915: Always call the adjusted mode 'adjusted_mode'

Always name any variable pointing at the adjusted mode as
'adjustead_mode'. This will make it much easier to identify
when we should use the crtc_ timings and when we shoudln't.

Conversion was performed with coccinelle:
@@
expression E;
identifier I;
@@
- struct drm_display_mode *I = &E.adjusted_mode;
+ struct drm_display_mode *adjusted_mode = &E.adjusted_mode;
<...
- I
+ adjusted_mode
...>

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
[danvet: Fixup conflicts.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Use intel_panel for DVO fixed mode handling
Ville Syrjälä [Tue, 8 Sep 2015 10:40:44 +0000 (13:40 +0300)]
drm/i915: Use intel_panel for DVO fixed mode handling

Replace intel_dvo->panel_fixed_mode with the appropriate intel_panel
stuff. Now all connectors that have a fixed mode use intel_panel.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Block disable call for pw1 if dmc firmware is present.
Animesh Manna [Tue, 25 Aug 2015 20:06:09 +0000 (01:36 +0530)]
drm/i915/skl: Block disable call for pw1 if dmc firmware is present.

Another interesting criteria to work dmc as expected is pw1 to be
enabled by driver and dmc will shut it off in its execution
sequence. If already disabled by driver dmc will get confuse and
behave differently than expected found during pc10 entry issue
for skl.

So berfore we disable power-well 1, added check if dmc firmware is
present and driver will not disable power well 1, but for any reason
if firmware is not present of failed to load we can shut off the
power well 1 which will save some power.

As skl is currently fully dependent on dmc to go in lowest possible
power state (dc6) but the same is not applicable for bxt. Display
engine can enter into dc9 without dmc, hence unblocking disable call.

v1: Initial version.

v2: Rebased as per current patch series.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Reviewed-by: A.Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Do not disable cdclk PLL if csr firmware is present
Animesh Manna [Tue, 25 Aug 2015 20:06:08 +0000 (01:36 +0530)]
drm/i915/skl: Do not disable cdclk PLL if csr firmware is present

While display engine entering into low power state no need to disable
cdclk pll as CSR firmware of dmc will take care. If pll is already
enabled firmware execution sequence will be blocked. This is one
of the criteria for dmc to work properly.

v1: Initial version.

v2: Based on review comment from Daniel added code commnent.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-bt: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Reviewed-by: A.Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl Remove the call for csr uninitialization from suspend path
Animesh Manna [Tue, 25 Aug 2015 20:06:06 +0000 (01:36 +0530)]
drm/i915/skl Remove the call for csr uninitialization from suspend path

This patch remove the function call to set the firmware
loading status as uninitialized during suspend.

Dmc firmware will restore the firmware in normal suspend. In previous
patch added a check to directly read the hardware status and load
the firmware if got reset during resume from suspend-hibernation.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Reviewed-by: A.Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915/skl: Added a check for the hardware status of csr fw before loading.
Animesh Manna [Tue, 25 Aug 2015 20:06:05 +0000 (01:36 +0530)]
drm/i915/skl: Added a check for the hardware status of csr fw before loading.

Dmc will restore the csr program except DC9, cold boot,
warm reset, PCI function level reset, and hibernate/suspend.

intel_csr_load_program() function is used to load the firmware
data from kernel memory to csr address space.

All values of csr address space will be zero if it got reset and
the first byte of csr program is always a non-zero if firmware
is loaded successfuly. Based on hardware status will load the
firmware.

Without this condition check if we overwrite the firmware data the
counters exposed for dc5/dc6 (help for debugging) will be nullified.

Note: Above commit message seems to be confused and the real problem
apparently going on is that for suspend-to-idle and system standby the
firmware survives (it's like runtime pm), but it doesn't for
suspend-to-mem and hibernate-to-disk. All the other talking about DC9
and pci reset are irrelevant for the path touched here (only driver
load and system resume functions) and might not be true statements.

v1: Initial version.

v2: Based on review comments from Daniel,
- Added a check to know hardware status and load the firmware if not loaded.

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Reviewed-by: A.Sunil Kamath <sunil.kamath@intel.com>
[danvet: Explain clearly in the code comment when we need to reload
and when not and make it a FIXME. Also deconfuse the commit message
with a note. Also: Make. it. compile.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agodrm/i915: Detect virtual south bridge
Robert Beckett [Fri, 28 Aug 2015 12:10:22 +0000 (13:10 +0100)]
drm/i915: Detect virtual south bridge

Virtualized systems often use a virtual P2X4 south bridge.
Detect this in intel_detect_pch and make a best guess as to which PCH
we should be using.

This was seen on vmware esxi hypervisor. When passing the graphics device
through to a guest, it can not pass through the PCH. Instead it simulates
a P2X4 southbridge.

Signed-off-by: Robert Beckett <robert.beckett@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agoMerge remote-tracking branch 'airlied/drm-next' into drm-intel-next
Daniel Vetter [Wed, 30 Sep 2015 06:47:41 +0000 (08:47 +0200)]
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next

Backmerge to catch up with 4.3. slightly more involved conflict in the
irq code, but nothing beyond adjacent changes.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
8 years agoMerge tag 'topic/drm-misc-2015-09-25' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Tue, 29 Sep 2015 22:35:45 +0000 (08:35 +1000)]
Merge tag 'topic/drm-misc-2015-09-25' of git://anongit.freedesktop.org/drm-intel into drm-next

Another attempt at drm-misc for 4.4 ...
- better atomic helpers for runtime pm drivers
- atomic fbdev
- dp aux i2c STATUS_UPDATE handling (for short i2c replies from the sink)
- bunch of constify patches
- inital kerneldoc for vga switcheroo
- some vblank code cleanups from Ville and Thierry
- various polish all over

* tag 'topic/drm-misc-2015-09-25' of git://anongit.freedesktop.org/drm-intel: (57 commits)
  drm/irq: Add drm_crtc_vblank_count_and_time()
  drm/irq: Rename drm_crtc -> crtc
  drm: drm_atomic_crtc_get_property should be static
  drm/gma500: Remove DP_LINK_STATUS_SIZE redefinition
  vga_switcheroo: Set active attribute to false for audio clients
  drm/core: Preserve the fb id on close.
  drm/core: Preserve the framebuffer after removing it.
  drm: Use vblank timestamps to guesstimate how many vblanks were missed
  drm: store_vblank() is never called with NULL timestamp
  drm: Clean up drm_calc_vbltimestamp_from_scanoutpos() vbl_status
  drm: Limit the number of .get_vblank_counter() retries
  drm: Pass flags to drm_update_vblank_count()
  drm/i915: Fix vblank count variable types
  drm: Kill pixeldur_ns
  drm: Stop using linedur_ns and pixeldur_ns for vblank timestamps
  drm: Move timestamping constants into drm_vblank_crtc
  drm/fbdev: Update legacy plane->fb refcounting for atomic restore
  drm: fix kernel-doc warnings in drm_crtc.h
  vga_switcheroo: Sort headers alphabetically
  drm: Spell vga_switcheroo consistently
  ...

8 years agodrm/i915: Update DRIVER_DATE to 20150928
Daniel Vetter [Mon, 28 Sep 2015 06:35:34 +0000 (08:35 +0200)]
drm/i915: Update DRIVER_DATE to 20150928

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
8 years agoLinux 4.3-rc3
Linus Torvalds [Sun, 27 Sep 2015 11:50:08 +0000 (07:50 -0400)]
Linux 4.3-rc3

8 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Sep 2015 10:51:42 +0000 (06:51 -0400)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "Two bugfixes from Andy addressing at least some of the subtle NMI
  related wreckage which has been reported by Sasha Levin"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code
  x86/paravirt: Replace the paravirt nop with a bona fide empty function

8 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Sep 2015 10:50:23 +0000 (06:50 -0400)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fix from Thomass Gleixner:
 "A bugfix for the atmel aic5 irq chip driver which caches the wrong
  data and thereby breaking resume"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/atmel-aic5: Use per chip mask caches in mask/unmask()

8 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 27 Sep 2015 10:48:48 +0000 (06:48 -0400)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Just two fixes: wire up the new system calls added during the last
  merge window, and fix another user access site"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: alignment: fix alignment handling for uaccess changes
  ARM: wire up new syscalls

8 years agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Sun, 27 Sep 2015 10:45:18 +0000 (06:45 -0400)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Our first real batch of fixes this release cycle.  Nothing really
  concerning, and diffstat is a bit inflated due to some DT contents
  moving around on STi platforms.

  There's a collection of them here:

   - A fixup for a build breakage that hits on arm64 allmodconfig in
     QCOM SCM firmware drivers
   - MMC fixes for OMAP that had quite a bit of breakage this merge
     window.
   - Misc build/warning fixes on PXA and OMAP
   - A couple of minor fixes for Beagleboard X15 which is now starting
     to see a few more users in the wild"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver
  ARM: dts: fix omap2+ address translation for pbias
  firmware: qcom: scm: Add function stubs for ARM64
  ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
  ARM: omap2plus_defconfig: enable GPIO_PCA953X
  ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
  ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
  ARM: dts: am57xx-beagle-x15: Update Phy supplies
  ARM: pxa: balloon3: Fix build error
  ARM: dts: Fixup model name for HP t410 dts
  ARM: dts: DRA7: fix a typo in ethernet
  ARM: omap2plus_defconfig: make PCF857x built-in
  ARM: dts: Use ti,pbias compatible string for pbias
  ARM: OMAP5: Cleanup options for SoC only build
  ARM: DRA7: Select missing options for SoC only build
  ARM: OMAP2+: board-generic: Remove stale of_irq macros
  ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well
  ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi
  ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410
  ARM: dts: am335x-phycore-som: Fix mpu voltage
  ...

8 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 27 Sep 2015 10:42:54 +0000 (06:42 -0400)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French:
 "Four fixes from testing at the recent SMB3 Plugfest including two
  important authentication ones (one fixes authentication problems to
  some popular servers when clock times differ more than two hours
  between systems, the other fixes Kerberos authentication for SMB3)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  fix encryption error checks on mount
  [SMB3] Fix sec=krb5 on smb3 mounts
  cifs: use server timestamp for ntlmv2 authentication
  disabling oplocks/leases via module parm enable_oplocks broken for SMB3

8 years agoMerge tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux into fixes
Olof Johansson [Sun, 27 Sep 2015 05:23:26 +0000 (22:23 -0700)]
Merge tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux into fixes

ARM: pxa: fixes for v4.3

These fixes are mainly regression fixes triggered by irq changes,
common clock framework introduction and sound side-effect of
other platforms.

* tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux:
  ARM: pxa: balloon3: Fix build error
  ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding
  ARM: pxa: fix DFI bus lockups on startup

Signed-off-by: Olof Johansson <olof@lixom.net>
8 years agoMerge tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Sun, 27 Sep 2015 05:22:31 +0000 (22:22 -0700)]
Merge tag 'omap-for-v4.3/fixes-rc2' of git://git./linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for v4.3-rc cycle:

- Two more patches to fix most of the MMC regressions with the
  PBIAS regulator changes. At least two MMC driver related issues
  still seems to remain for omap3 legacy booting and omap4 duovero.
  Note that the dts changes depend on a recent regulator fix, and
  are based on the regulator commit now in mainline kernel

- Enable autoidle for am43xx clocks to prevent clocks from staying
  always on

- Fix i2c5 pinctrl offsets for omap5-uevm

- Enable PCA953X as that's needed for HDMI to work on omap5

- Update phy supplies for beagle x15 beta board

- Use palmas-usb for on beagle x15 to start using the related
  driver that recently got merged

* tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: fix omap2+ address translation for pbias
  ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
  ARM: omap2plus_defconfig: enable GPIO_PCA953X
  ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
  ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
  ARM: dts: am57xx-beagle-x15: Update Phy supplies
  regulator: pbias: program pbias register offset in pbias driver
  ARM: omap2plus_defconfig: Enable MUSB DMA support
  ARM: DRA752: Add ID detect for ES2.0
  ARM: OMAP3: vc: fix 'or' always true warning
  ARM: OMAP2+: Fix booting if no timer parent clock is available
  ARM: OMAP2+: omap-device: fix race deferred probe of omap_hsmmc vs omap_device_late_init

Signed-off-by: Olof Johansson <olof@lixom.net>
8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Sun, 27 Sep 2015 01:05:23 +0000 (21:05 -0400)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - check the return value of platform_get_irq as signed int in xgene.

   - skip adf_dev_restore on virtual functions in qat.

   - fix double-free with backlogged requests in marvell_cesa"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: xgene - fix handling platform_get_irq
  crypto: qat - VF should never trigger SBR on PH
  crypto: marvell - properly handle CRYPTO_TFM_REQ_MAY_BACKLOG-flagged requests

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Linus Torvalds [Sun, 27 Sep 2015 01:02:42 +0000 (21:02 -0400)]
Merge git://git./linux/kernel/git/nab/target-pending

Pull SCSI target fixes from Nicholas Bellinger:
 "This includes a iser-target series from Jenny + Sagi @ Mellanox that
  addresses the few remaining active I/O shutdown bugs, along with a
  patch to support zero-copy for immediate data payloads that gives a
  nice performance improvement for small block WRITEs.

  Also included are some recent >= v4.2 regression bug-fixes.  The most
  notable is a RCU conversion regression for SPC-3 PR registrations, and
  recent removal of obsolete RFC-3720 markers that introduced a login
  regression bug with MSFT iSCSI initiators.

  Thanks to everyone who has been testing + reporting bugs for v4.x"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target: Avoid OFMarker + IFMarker negotiation
  target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
  target: Fix target_sense_desc_format NULL pointer dereference
  target: Propigate backend read-only to core_tpg_add_lun
  target: Fix PR registration + APTPL RCU conversion regression
  iser-target: Skip data copy if all the command data comes as immediate
  iser-target: Change the recv buffers posting logic
  iser-target: Fix pending connections handling in target stack shutdown sequnce
  iser-target: Remove np_ prefix from isert_np members
  iser-target: Remove unused variables
  iser-target: Put the reference on commands waiting for unsol data
  iser-target: remove command with state ISTATE_REMOVE

8 years agoMerge tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 27 Sep 2015 01:00:28 +0000 (21:00 -0400)]
Merge tag 'usb-4.3-rc3' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some USB driver fixes for 4.3-rc3.

  There's the usual assortment of new device ids, combined with xhci and
  gadget driver fixes.  Full details in the shortlog.  All of these have
  been in linux-next with no reported problems"

* tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits)
  MAINTAINERS: remove amd5536udc USB gadget driver maintainer
  USB: whiteheat: fix potential null-deref at probe
  xhci: init command timeout timer earlier to avoid deleting it uninitialized
  xhci: change xhci 1.0 only restrictions to support xhci 1.1
  usb: xhci: exit early in xhci_setup_device() if we're halted or dying
  usb: xhci: stop everything on the first call to xhci_stop
  usb: xhci: Clear XHCI_STATE_DYING on start
  usb: xhci: lock mutex on xhci_stop
  xhci: Move xhci_pme_quirk() behind #ifdef CONFIG_PM
  xhci: give command abortion one more chance before killing xhci
  usb: Use the USB_SS_MULT() macro to get the burst multiplier.
  usb: dwc3: gadget: Fix BUG in RT config
  usb: musb: fix cppi channel teardown for isoch transfer
  usb: phy: isp1301: Export I2C module alias information
  usb: gadget: drop null test before destroy functions
  usb: gadget: dummy_hcd: in transfer(), return data sent, not limit
  usb: gadget: dummy_hcd: fix rescan logic for transfer
  usb: gadget: dummy_hcd: fix unneeded else-if condition
  usb: gadget: dummy_hcd: emulate sending zlp in packet logic
  usb: musb: dsps: fix polling in device-only mode
  ...

8 years agoMerge tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sun, 27 Sep 2015 00:58:38 +0000 (20:58 -0400)]
Merge tag 'tty-4.3-rc3' of git://git./linux/kernel/git/gregkh/tty

Pull serial driver fix from Greg KH:
 "Here is one serial driver fix for 4.3-rc3 that resolves a module
  loading issue due to splitting up of the 8250 driver into smaller
  pieces.  It's been in linux-next with no reported problems"

* tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: Add missing module license for 8250_base.ko

8 years agoMerge tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 27 Sep 2015 00:56:50 +0000 (20:56 -0400)]
Merge tag 'staging-4.3-rc3' of git://git./linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some tiny staging driver and documentation fixes for 4.3-rc3.

  All of these resolve reported issues that people have found and have
  been in the linux-next tree for a while with no problems"

* tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  MAINTAINERS: Update email address for Martyn Welch
  staging: ion: fix corruption of ion_import_dma_buf
  staging: dgap: Remove myself from the MAINTAINERS file
  staging: most: Add dependency to HAS_IOMEM
  staging: unisys: remove reference of visorutil
  staging: unisys: visornic: handle error return from device registration
  staging: unisys: stop device registration before visorbus registration
  staging: unisys: visorbus: Unregister driver on error
  staging: unisys: visornic: Fix receive bytes statistics
  staging: unisys: unregister netdev when create debugfs fails
  staging: fbtft: replace master->setup() with spi_setup()
  staging: fbtft: fix 9-bit SPI support detection
  staging/lustre: change Lustre URLs and mailing list
  staging/android: Update ION TODO per LPC discussion
  Staging: most: MOST and MOSTCORE should depend on HAS_DMA
  staging: most: fix HDM_USB dependencies and build errors

8 years agoMerge tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 27 Sep 2015 00:54:53 +0000 (20:54 -0400)]
Merge tag 'driver-core-4.3-rc3' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is one driver core fix for 4.3-rc3 that resolves a reported oops"

* tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  cpu/cacheinfo: Fix teardown path

8 years agoMerge tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 27 Sep 2015 00:53:15 +0000 (20:53 -0400)]
Merge tag 'char-misc-4.3-rc3' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here's some tiny char and misc driver fixes that resolve some reported
  errors for 4.3-rc3.

  All of these have been in linux-next with no problems for a while"

* tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  extcon: Fix attached value returned by is_extcon_changed
  Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc
  mei: fix debugfs files leak on error path
  thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller

8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sat, 26 Sep 2015 10:01:33 +0000 (06:01 -0400)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs
    instead of cloning them.  From Daniel Borkmann.

 2) When converting classical BPF into eBPF, fix the setting of the
    source reg to BPF_REG_X.  From Tycho Andersen.

 3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from
    Linus Lussing.

 4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau.

 5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from
    Roopa Prabhu.

 6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai.

 7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from
    Florian Westphal.

 8) Check DMA mapping errors in bna driver, from Ivan Vecera.

 9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context,
    misclearing of interrupt status in TX timeout handler, etc.) from
    David Woodhouse.

10) In tipc, reset SKB header pointer after skb_linearize(), from Erik
    Hugne.

11) Fix autobind races et al. in netlink code, from Herbert Xu with
    help from Tejun Heo and others.

12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan.

13) Fix various races in timewait timer and reqsk_queue_hadh_req, from
    Eric Dumazet.

14) Fix array overruns in mac80211, from Johannes Berg and Dan
    Carpenter.

15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov.

16) Fix race between poll_one_napi and napi_disable, from Neil Horman.

17) Fix byte order in geneve tunnel port config, from John W Linville.

18) Fix handling of ARP replies over lightweight tunnels, from Jiri
    Benc.

19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson
    Kok and Roopa Prabhu.

20) Several reference count handling bug fixes in the PHY/MDIO layer
    from Russel King.

21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault.

22) Fix crash in icmp_route_lookup(), from David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
  net: Fix panic in icmp_route_lookup
  net: update docbook comment for __mdiobus_register()
  ppp: fix lockdep splat in ppp_dev_uninit()
  net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
  phy: marvell: add link partner advertised modes
  net: fix net_device refcounting
  phy: add phy_device_remove()
  phy: fixed-phy: properly validate phy in fixed_phy_update_state()
  net: fix phy refcounting in a bunch of drivers
  of_mdio: fix MDIO phy device refcounting
  phy: add proper phy struct device refcounting
  phy: fix mdiobus module safety
  net: dsa: fix of_mdio_find_bus() device refcount leak
  phy: fix of_mdio_find_bus() device refcount leak
  ip6_tunnel: Reduce log level in ip6_tnl_err() to debug
  ip6_gre: Reduce log level in ip6gre_err() to debug
  fib_rules: fix fib rule dumps across multiple skbs
  bnx2x: byte swap rss_key to comply to Toeplitz specs
  net: revert "net_sched: move tp->root allocation into fw_init()"
  lwtunnel: remove source and destination UDP port config option
  ...

8 years agonet: Fix panic in icmp_route_lookup
David Ahern [Thu, 24 Sep 2015 21:31:29 +0000 (15:31 -0600)]
net: Fix panic in icmp_route_lookup

Andrey reported a panic:

[ 7249.865507] BUG: unable to handle kernel pointer dereference at 000000b4
[ 7249.865559] IP: [<c16afeca>] icmp_route_lookup+0xaa/0x320
[ 7249.865598] *pdpt = 0000000030f7f001 *pde = 0000000000000000
[ 7249.865637] Oops: 0000 [#1]
...
[ 7249.866811] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
4.3.0-999-generic #201509220155
[ 7249.866876] Hardware name: MSI MS-7250/MS-7250, BIOS 080014  08/02/2006
[ 7249.866916] task: c1a5ab00 ti: c1a52000 task.ti: c1a52000
[ 7249.866949] EIP: 0060:[<c16afeca>] EFLAGS: 00210246 CPU: 0
[ 7249.866981] EIP is at icmp_route_lookup+0xaa/0x320
[ 7249.867012] EAX: 00000000 EBX: f483ba48 ECX: 00000000 EDX: f2e18a00
[ 7249.867045] ESI: 000000c0 EDI: f483ba70 EBP: f483b9ec ESP: f483b974
[ 7249.867077]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 7249.867108] CR0: 8005003b CR2: 000000b4 CR3: 36ee07c0 CR4: 000006f0
[ 7249.867141] Stack:
[ 7249.867165]  320310ee 00000000 00000042 320310ee 00000000 c1aeca00
f3920240 f0c69180
[ 7249.867268]  f483ba04 f855058b a89b66cd f483ba44 f8962f4b 00000000
e659266c f483ba54
[ 7249.867361]  8004753c f483ba5c f8962f4b f2031140 000003c1 ffbd8fa0
c16b0e00 00000064
[ 7249.867448] Call Trace:
[ 7249.867494]  [<f855058b>] ? e1000_xmit_frame+0x87b/0xdc0 [e1000e]
[ 7249.867534]  [<f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867576]  [<f8962f4b>] ? tcp_in_window+0xeb/0xb10 [nf_conntrack]
[ 7249.867615]  [<c16b0e00>] ? icmp_send+0xa0/0x380
[ 7249.867648]  [<c16b102f>] icmp_send+0x2cf/0x380
[ 7249.867681]  [<f89c8126>] nf_send_unreach+0xa6/0xc0 [nf_reject_ipv4]
[ 7249.867714]  [<f89cd0da>] reject_tg+0x7a/0x9f [ipt_REJECT]
[ 7249.867746]  [<f88c29a7>] ipt_do_table+0x317/0x70c [ip_tables]
[ 7249.867780]  [<f895e0a6>] ? __nf_conntrack_find_get+0x166/0x3b0
[nf_conntrack]
[ 7249.867838]  [<f895eea8>] ? nf_conntrack_in+0x398/0x600 [nf_conntrack]
[ 7249.867889]  [<f84c0035>] iptable_filter_hook+0x35/0x80 [iptable_filter]
[ 7249.867933]  [<c16776a1>] nf_iterate+0x71/0x80
[ 7249.867970]  [<c1677715>] nf_hook_slow+0x65/0xc0
[ 7249.868002]  [<c1681811>] __ip_local_out_sk+0xc1/0xd0
[ 7249.868034]  [<c1680f30>] ? ip_forward_options+0x1a0/0x1a0
[ 7249.868066]  [<c1681836>] ip_local_out_sk+0x16/0x30
[ 7249.868097]  [<c1684054>] ip_send_skb+0x14/0x80
[ 7249.868129]  [<c16840f4>] ip_push_pending_frames+0x34/0x40
[ 7249.868163]  [<c16844a2>] ip_send_unicast_reply+0x282/0x310
[ 7249.868196]  [<c16a0863>] tcp_v4_send_reset+0x1b3/0x380
[ 7249.868227]  [<c16a1b63>] tcp_v4_rcv+0x323/0x990
[ 7249.868257]  [<c16776a1>] ? nf_iterate+0x71/0x80
[ 7249.868289]  [<c167dc2b>] ip_local_deliver_finish+0x8b/0x230
[ 7249.868322]  [<c167df4c>] ip_local_deliver+0x4c/0xa0
[ 7249.868353]  [<c167dba0>] ? ip_rcv_finish+0x390/0x390
[ 7249.868384]  [<c167d88c>] ip_rcv_finish+0x7c/0x390
[ 7249.868415]  [<c167e280>] ip_rcv+0x2e0/0x420
...

Prior to the VRF change the oif was not set in the flow struct, so the
VRF support should really have only added the vrf_master_ifindex lookup.

Fixes: 613d09b30f8b ("net: Use VRF device index for lookups on TX")
Cc: Andrey Melnikov <temnota.am@gmail.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: update docbook comment for __mdiobus_register()
Russell King [Fri, 25 Sep 2015 10:56:56 +0000 (11:56 +0100)]
net: update docbook comment for __mdiobus_register()

Update the docbook comment for __mdiobus_register() to include the new
module owner argument.  This resolves a warning found by the 0-day
builder.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMAINTAINERS: remove amd5536udc USB gadget driver maintainer
Greg Kroah-Hartman [Sat, 26 Sep 2015 03:45:27 +0000 (20:45 -0700)]
MAINTAINERS: remove amd5536udc USB gadget driver maintainer

Thomas can no longer work on the driver, so he asked me to mark the
MAINTAINER entry as "Orphan" with the hope that someone else would
someday pick it up.

Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoMerge branch 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Fri, 25 Sep 2015 23:20:55 +0000 (16:20 -0700)]
Merge branch 'for-4.3-fixes' of git://git./linux/kernel/git/tj/cgroup

Pull another cgroup fix from Tejun Heo:
 "The cgroup writeback support got inadvertently enabled for traditional
  hierarchies revealing two regressions which are currently being worked
  on.  It shouldn't have been enabled on traditional hierarchies, so
  disable it on them.  This is enough to make the regressions go away
  for people who aren't experimenting with cgroup"

* 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup, writeback: don't enable cgroup writeback on traditional hierarchies

8 years agoppp: fix lockdep splat in ppp_dev_uninit()
Guillaume Nault [Thu, 24 Sep 2015 10:54:01 +0000 (12:54 +0200)]
ppp: fix lockdep splat in ppp_dev_uninit()

ppp_dev_uninit() locks all_ppp_mutex while under rtnl mutex protection.
ppp_create_interface() must then lock these mutexes in that same order
to avoid possible deadlock.

[  120.880011] ======================================================
[  120.880011] [ INFO: possible circular locking dependency detected ]
[  120.880011] 4.2.0 #1 Not tainted
[  120.880011] -------------------------------------------------------
[  120.880011] ppp-apitest/15827 is trying to acquire lock:
[  120.880011]  (&pn->all_ppp_mutex){+.+.+.}, at: [<ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[  120.880011]
[  120.880011] but task is already holding lock:
[  120.880011]  (rtnl_mutex){+.+.+.}, at: [<ffffffff812e4255>] rtnl_lock+0x12/0x14
[  120.880011]
[  120.880011] which lock already depends on the new lock.
[  120.880011]
[  120.880011]
[  120.880011] the existing dependency chain (in reverse order) is:
[  120.880011]
[  120.880011] -> #1 (rtnl_mutex){+.+.+.}:
[  120.880011]        [<ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[  120.880011]        [<ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[  120.880011]        [<ffffffff812e4255>] rtnl_lock+0x12/0x14
[  120.880011]        [<ffffffff812d9d94>] register_netdev+0x11/0x27
[  120.880011]        [<ffffffffa0147b17>] ppp_ioctl+0x289/0xc98 [ppp_generic]
[  120.880011]        [<ffffffff8113b367>] do_vfs_ioctl+0x4ea/0x532
[  120.880011]        [<ffffffff8113b3fd>] SyS_ioctl+0x4e/0x7d
[  120.880011]        [<ffffffff813ad7d7>] entry_SYSCALL_64_fastpath+0x12/0x6f
[  120.880011]
[  120.880011] -> #0 (&pn->all_ppp_mutex){+.+.+.}:
[  120.880011]        [<ffffffff8107334e>] __lock_acquire+0xb07/0xe76
[  120.880011]        [<ffffffff81073a6f>] lock_acquire+0xcf/0x10e
[  120.880011]        [<ffffffff813ab18a>] mutex_lock_nested+0x56/0x341
[  120.880011]        [<ffffffffa0145f56>] ppp_dev_uninit+0x64/0xb0 [ppp_generic]
[  120.880011]        [<ffffffff812d5263>] rollback_registered_many+0x19e/0x252
[  120.880011]        [<ffffffff812d5381>] rollback_registered+0x29/0x38
[  120.880011]        [<ffffffff812d53fa>] unregister_netdevice_queue+0x6a/0x77
[  120.880011]        [<ffffffffa0146a94>] ppp_release+0x42/0x79 [ppp_generic]
[  120.880011]        [<ffffffff8112d9f6>] __fput+0xec/0x192
[  120.880011]        [<ffffffff8112dacc>] ____fput+0x9/0xb
[  120.880011]        [<ffffffff8105447a>] task_work_run+0x66/0x80
[  120.880011]        [<ffffffff81001801>] prepare_exit_to_usermode+0x8c/0xa7
[  120.880011]        [<ffffffff81001900>] syscall_return_slowpath+0xe4/0x104
[  120.880011]        [<ffffffff813ad931>] int_ret_from_sys_call+0x25/0x9f
[  120.880011]
[  120.880011] other info that might help us debug this:
[  120.880011]
[  120.880011]  Possible unsafe locking scenario:
[  120.880011]
[  120.880011]        CPU0                    CPU1
[  120.880011]        ----                    ----
[  120.880011]   lock(rtnl_mutex);
[  120.880011]                                lock(&pn->all_ppp_mutex);
[  120.880011]                                lock(rtnl_mutex);
[  120.880011]   lock(&pn->all_ppp_mutex);
[  120.880011]
[  120.880011]  *** DEADLOCK ***

Fixes: 8cb775bc0a34 ("ppp: fix device unregistration upon netns deletion")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
Sudip Mukherjee [Thu, 24 Sep 2015 10:16:53 +0000 (15:46 +0530)]
net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected

The builds of allmodconfig of avr32 is failing with:

drivers/net/ethernet/via/via-rhine.c:1098:2: error: implicit declaration
of function 'pci_iomap' [-Werror=implicit-function-declaration]
drivers/net/ethernet/via/via-rhine.c:1119:2: error: implicit declaration
of function 'pci_iounmap' [-Werror=implicit-function-declaration]

The generic empty pci_iomap and pci_iounmap is used only if CONFIG_PCI
is not defined and CONFIG_GENERIC_PCI_IOMAP is defined.

Add GENERIC_PCI_IOMAP in the dependency list for VIA_RHINE as we are
getting build failure when CONFIG_PCI and CONFIG_GENERIC_PCI_IOMAP both
are not defined.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agophy: marvell: add link partner advertised modes
Russell King [Wed, 23 Sep 2015 23:07:17 +0000 (00:07 +0100)]
phy: marvell: add link partner advertised modes

Read the standard link partner advertisment registers and store it in
phydev->lp_advertising, so ethtool can report this information to
userspace via ethtool.  Zero it as per genphy if autonegotiation is
disabled.  Tested with a Marvell 88E1512 PHY.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Fri, 25 Sep 2015 19:08:41 +0000 (12:08 -0700)]
Merge branch 'for-linus-4.3' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "This is an assorted set I've been queuing up:

  Jeff Mahoney tracked down a tricky one where we ended up starting IO
  on the wrong mapping for special files in btrfs_evict_inode.  A few
  people reported this one on the list.

  Filipe found (and provided a test for) a difficult bug in reading
  compressed extents, and Josef fixed up some quota record keeping with
  snapshot deletion.  Chandan killed off an accounting bug during DIO
  that lead to WARN_ONs as we freed inodes"

* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: keep dropped roots in cache until transaction commit
  Btrfs: Direct I/O: Fix space accounting
  btrfs: skip waiting on ordered range for special files
  Btrfs: fix read corruption of compressed and shared extents
  Btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock
  Btrfs: don't initialize a space info as full to prevent ENOSPC

8 years agoMerge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Linus Torvalds [Fri, 25 Sep 2015 18:33:52 +0000 (11:33 -0700)]
Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable patches:
   - fix v4.2 SEEK on files over 2 gigs
   - Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
   - Fix recovery of recalled read delegations

  Bugfixes:
   - Fix a case where NFSv4 fails to send CLOSE after a server reboot
   - Fix sunrpc to wait for connections to complete before retrying
   - Fix sunrpc races between transport connect/disconnect and shutdown
   - Fix an infinite loop when layoutget fail with BAD_STATEID
   - nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
   - Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
   - Fix layoutreturn/close ordering issues"

* tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS41: make close wait for layoutreturn
  NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set
  NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget
  NFSv4: Recovery of recalled read delegations is broken
  NFS: Fix an infinite loop when layoutget fail with BAD_STATEID
  NFS: Do cleanup before resetting pageio read/write to mds
  SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose
  SUNRPC: Lock the transport layer on shutdown
  nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
  SUNRPC: Ensure that we wait for connections to complete before retrying
  SUNRPC: drop null test before destroy functions
  nfs: fix v4.2 SEEK on files over 2 gigs
  SUNRPC: Fix races between socket connection and destroy code
  nfs: fix pg_test page count calculation
  Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount

8 years agoMerge tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 25 Sep 2015 18:25:30 +0000 (11:25 -0700)]
Merge tag 'sound-4.3-rc3' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This ended up with a larger set of fixes than wished, unfortunately.

  As diffstat shows, the majority of changes are for various ASoC
  drivers (Realtek, Wolfson codec drivers, etc), in addition to a couple
  of HD-audio regression fixes.  All these are reasonably small and
  nothing to scare much"

* tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
  ALSA: hda - Disable power_save_node for Thinkpads
  ALSA: hda/tegra - async probe for avoiding module loading deadlock
  ASoC: rt5645: Prevent the pop sound in case of playback and the jack is plugging
  ASoC: rt5645: Increase the delay time to remove the pop sound
  ASoC: rt5645: Use the type SOC_DAPM_SINGLE_AUTODISABLE to prevent the weird sound in runtime of power up
  ASoC: pxa: pxa2xx-ac97: fix dma requestor lines
  MAINTAINERS: Update website and git repo for Wolfson Microelectronics
  ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
  ASoC: wm0010: fix error path
  ASoC: wm0010: fix memory leak
  ASoC: wm8960: correct the max register value of mic boost pga
  ASoC: wm8962: remove 64k sample rate support
  ASoC: davinci-mcasp: Fix devm_kasprintf format string
  ASoC: fix broken pxa SoC support
  ASoC: davinci-mcasp: Set .symmetric_rates = 1 in snd_soc_dai_driver
  ASoC: au1x: psc-i2s: Fix unused variable 'ret' warning
  ASoC: SPEAr: Make SND_SPEAR_SOC select SND_SOC_GENERIC_DMAENGINE_PCM
  ASoC: mediatek: Increase periods_min in capture
  ASoC: davinci-mcasp: Revise the FIFO threshold calculation
  ASoC: wm8960: correct gain value for input PGA and add microphone PGA
  ...

8 years agoMerge tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Linus Torvalds [Fri, 25 Sep 2015 18:16:53 +0000 (11:16 -0700)]
Merge tag 'pci-v4.3-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "These are fixes for things we merged for v4.3 (VPD, MSI, and bridge
  window management), and a new Renesas R8A7794 SoC device ID.

  Details:

  Resource management:
   - Revert pci_read_bridge_bases() unification (Bjorn Helgaas)
   - Clear IORESOURCE_UNSET when clipping a bridge window (Bjorn
     Helgaas)

  MSI:
   - Fix MSI IRQ domains for VFs on virtual buses (Alex Williamson)

  Renesas R-Car host bridge driver:
   - Add R8A7794 support (Sergei Shtylyov)

  Miscellaneous:
   - Fix devfn for VPD access through function 0 (Alex Williamson)
   - Use function 0 VPD only for identical functions (Alex Williamson)"

* tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: rcar: Add R8A7794 support
  PCI: Use function 0 VPD for identical functions, regular VPD for others
  PCI: Fix devfn for VPD access through function 0
  PCI/MSI: Fix MSI IRQ domains for VFs on virtual buses
  PCI: Clear IORESOURCE_UNSET when clipping a bridge window
  PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code"

8 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 25 Sep 2015 17:51:40 +0000 (10:51 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "AMD fixes for bugs introduced in the 4.2 merge window, and a few PPC
  bug fixes too"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: disable halt_poll_ns as default for s390x
  KVM: x86: fix off-by-one in reserved bits check
  KVM: x86: use correct page table format to check nested page table reserved bits
  KVM: svm: do not call kvm_set_cr0 from init_vmcb
  KVM: x86: trap AMD MSRs for the TSeg base and mask
  KVM: PPC: Book3S: Take the kvm->srcu lock in kvmppc_h_logical_ci_load/store()
  KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit
  KVM: PPC: Book3S HV: Fix handling of interrupted VCPUs
  kvm: svm: reset mmu on VCPU reset

8 years agoMerge tag 'powerpc-4.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 25 Sep 2015 17:11:26 +0000 (10:11 -0700)]
Merge tag 'powerpc-4.3-3' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 - Wire up sys_membarrier()
 - cxl: Fix lockdep warning while creating afu_err_buff from Vaibhav

* tag 'powerpc-4.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  cxl: Fix lockdep warning while creating afu_err_buff attribute
  powerpc: Wire up sys_membarrier()