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9 years agodrm/i915/skl: Restructured the gen6_set_rps_thresholds function
Akash Goel [Fri, 6 Mar 2015 05:37:18 +0000 (11:07 +0530)]
drm/i915/skl: Restructured the gen6_set_rps_thresholds function

Prior to SKL, the time period programmed in Up/Down EI & Up/Down
threshold registers was in units of 1.28 micro seconds. But for
SKL, the units have changed (1.333 micro seconds).
Have generalized the implementation of gen6_set_rps_thresholds function,
by removing the hard coding done in it as per 1.28 micro seconds.

v2: Renamed the local variables & removed superfluous comments (Chris)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Updated the gen6_set_rps function
Akash Goel [Fri, 6 Mar 2015 05:37:17 +0000 (11:07 +0530)]
drm/i915/skl: Updated the gen6_set_rps function

On SKL, the frequency is programmed differently in RPNSWREQ (A008)
register (from bits 23 to 31, compared to bits 24 to 31). So updated
the gen6_set_rps function, as per this change.

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Updated the gen6_init_rps_frequencies function
Akash Goel [Fri, 6 Mar 2015 05:37:16 +0000 (11:07 +0530)]
drm/i915/skl: Updated the gen6_init_rps_frequencies function

On SKL the frequency is specified in units of 16.66 MHZ, barring the
RP_STATE_CAP(0x5998) register, which still reports frequency in units
of 50 MHZ. So an extra conversion is required in gen6_init_rps_frequencies
function for SKL, to store the frequency values as per the actual hardware unit.

v2: Corrected the conversion from 50 to 16.66 MHZ (Ville)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Updated intel_gpu_freq() and intel_freq_opcode()
Akash Goel [Fri, 6 Mar 2015 05:37:15 +0000 (11:07 +0530)]
drm/i915/skl: Updated intel_gpu_freq() and intel_freq_opcode()

On SKL, frequency is specified in units of 16.66 MHZ.
Updated the intel_gpu_freq() and intel_freq_opecode() functions
to do the conversion appropriately.

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Added new macros
Akash Goel [Fri, 6 Mar 2015 05:37:14 +0000 (11:07 +0530)]
drm/i915/skl: Added new macros

For SKL, register definition for RPNSWREQ (A008), RPSTAT1(A01C)
have changed slightly. Also on SKL, frequency is specified in
units of 16.66 MHZ, compared to 50 MHZ for most of the earlier
platforms and the time values are expressed in units of 1.33 us,
compared to 1.28 us for earlier platforms.
Added new macros for the aforementioned changes.

v2: Renamed the GT_FREQ_FROM_PERIOD macro to GT_INTERVAL_FROM_US (Damien)

v3: Removed the implicit use of dev_priv in GT_INTERVAL_FROM_US macro (Chris)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: remove indirection in the PCI ID macros
Jani Nikula [Tue, 3 Feb 2015 12:34:05 +0000 (14:34 +0200)]
drm/i915: remove indirection in the PCI ID macros

Spell all the PCI IDs out to be able to quickly grep for the IDs. No
functional changes.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Add GT1/2 to comments to not loose that distinction.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Use FW_WM() macro for older gmch platforms too
Ville Syrjälä [Tue, 10 Mar 2015 15:02:21 +0000 (17:02 +0200)]
drm/i915: Use FW_WM() macro for older gmch platforms too

Use the FW_WM() macro from the VLV wm code to polish up the wm
code for older gmch platforms.

Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add polish to VLV WM shift+mask operations
Ville Syrjälä [Tue, 10 Mar 2015 14:16:28 +0000 (16:16 +0200)]
drm/i915: Add polish to VLV WM shift+mask operations

Wrap the FW register value shift+mask operations into a macro to hide
the ugliness a bit. Also might avoid bugs due to typos.

Also rename all the primary/sprite plane low order bit masks to have the
_VLV suffix, so that we can use the FW_WM_VLV() macro instead of the
FW_WM() macro for them in a consistent manner. Cursor and all the high
order bits are left to use the FW_WM() macro as there's no real
confusion with them.

Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Use plane->state->fb instead of plane->fb in intel_plane_restore()
Ville Syrjälä [Tue, 10 Mar 2015 11:15:23 +0000 (13:15 +0200)]
drm/i915: Use plane->state->fb instead of plane->fb in intel_plane_restore()

plane->fb is not as reliable as plane->state->fb so let's convert
intel_plane_restore() over the the new way of thinking as well.

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Reduce clutter by using the local plane pointer
Ville Syrjälä [Tue, 10 Mar 2015 11:15:22 +0000 (13:15 +0200)]
drm/i915: Reduce clutter by using the local plane pointer

No need to go dig throguh intel_crtc->base.cursor when we already have
the same thing as 'plane' local variable.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Remove debug prints from primary plane update funcs
Ville Syrjälä [Tue, 10 Mar 2015 11:15:21 +0000 (13:15 +0200)]
drm/i915: Remove debug prints from primary plane update funcs

These are now called from the plane commit hooks, so they really need to
be fast or else we risk atomic update failures. So kill the debug prints
which are slowing things down massively.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add ULL postfix to VGT_MAGIC constant
Daniel Vetter [Wed, 11 Mar 2015 07:27:25 +0000 (08:27 +0100)]
drm/i915: Add ULL postfix to VGT_MAGIC constant

Without this Dave's 32bit rhel compiler is annoyed. Don't ask me about
the exact rules for this stuff though, but this should be safe.

Reported-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm/fourcc: 64 #defines need ULL postfix
Daniel Vetter [Wed, 11 Mar 2015 07:26:23 +0000 (08:26 +0100)]
drm/fourcc: 64 #defines need ULL postfix

I have no idea about the exact rules, but this angered Dave's 32bit
rhel gcc.

Reported-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm/i915: Don't assume primary & cursor are always on for wm calculation (v4)
Matt Roper [Mon, 9 Mar 2015 18:06:02 +0000 (11:06 -0700)]
drm/i915: Don't assume primary & cursor are always on for wm calculation (v4)

Current ILK-style watermark code assumes the primary plane and cursor
plane are always enabled.  This assumption, along with the combination
of two independent commits that got merged at the same time, results in
a NULL dereference.  The offending commits are:

        commit fd2d61341bf39d1054256c07d6eddd624ebc4241
        Author: Matt Roper <matthew.d.roper@intel.com>
        Date:   Fri Feb 27 10:12:01 2015 -0800

            drm/i915: Use plane->state->fb in watermark code (v2)

and

        commit 0fda65680e92545caea5be7805a7f0a617fb6c20
        Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
        Date:   Fri Feb 27 15:12:35 2015 +0000

            drm/i915/skl: Update watermarks for Y tiling

The first commit causes us to use the FB from plane->state->fb rather
than the legacy plane->fb, which is updated a bit later in the process.

The second commit includes a change that now triggers watermark
reprogramming on primary plane enable/disable where we didn't have one
before (which wasn't really correct, but we had been getting lucky
because we always calculated as if the primary plane was on).

Together, these two commits cause the watermark calculation to
(properly) see plane->state->fb = NULL when we're in the process of
disabling the primary plane.  However the existing watermark code
assumes there's always a primary fb and tries to dereference it to find
out pixel format / bpp information.

The fix is to make ILK-style watermark calculation actually check the
true status of primary & cursor planes and adjust our watermark logic
accordingly.

v2: Update unchecked uses of state->fb for other platforms (pnv, skl,
    etc.).  Note that this is just a temporary fix.  Ultimately the
    useful information is going to be computed at check time and stored
    right in the state structures so that we don't have to figure this
    all out while we're supposed to be programming the watermarks.
    (caught by Tvrtko)

v3: Fix a couple copy/paste mistakes in SKL code. (Tvrtko)

v4: Only add FB checks for ILK/SKL codepaths.  Older platforms still use
    intel_crtc_active() and will shortcircuit out of watermark
    calculations before ever trying to dereference the primary plane's
    framebuffer.

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Michael Leuchtenburg <michael@slashhome.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89388
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Move drm_framebuffer_unreference out of struct_mutex for flips
Chris Wilson [Mon, 16 Feb 2015 14:31:49 +0000 (14:31 +0000)]
drm/i915: Move drm_framebuffer_unreference out of struct_mutex for flips

intel_user_framebuffer_destroy() requires the struct_mutex for its
object bookkeeping, so this means that all calls to
drm_framebuffer_unreference must not hold that lock.

Regression from commit ab8d66752a9c28cd6c94fa173feacdfc1554aa03
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Mon Feb 2 15:44:15 2015 +0000

    drm/i915: Track old framebuffer instead of object

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89166
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
[danvet: Clarify commit message slightly.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Disable DDR DVFS on CHV
Ville Syrjälä [Thu, 5 Mar 2015 19:19:52 +0000 (21:19 +0200)]
drm/i915: Disable DDR DVFS on CHV

DDR DVFS introduces massive memory latencies which can't be handled by
the PND deadline stuff. Instead the watermarks will need to be
programmed to compensate for the latency and the deadlines will need to
be programmed to tight fixed values. That means DDR DVFS can only be
enabled if the display FIFOs are large enough, and that pretty much
means we have to manually repartition them to suit the needs of the
moment.

That's a lot of change, so in the meantime let's just disable DDR DVFS
to get the display(s) to be stable.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Enable the maxfifo PM5 mode when appropriate on CHV
Ville Syrjälä [Thu, 5 Mar 2015 19:19:51 +0000 (21:19 +0200)]
drm/i915: Enable the maxfifo PM5 mode when appropriate on CHV

CHV has a new knob in Punit to select between some memory power savings
modes PM2 and PM5. We can allow the deeper PM5 when maxfifo mode is
enabled, so let's do so in the hopes for moar power savings.

v2: Put the thing into a separate function to avoid churn later
v3: Don't break VLV

Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Program PFI credits for VLV
Vidya Srinivas [Thu, 5 Mar 2015 19:19:50 +0000 (21:19 +0200)]
drm/i915: Program PFI credits for VLV

PFI credit programming is required when CD clock (related to data flow from
display pipeline to end display) is greater than CZ clock (related to data
flow from memory to display plane). This programming should be done when all
planes are OFF to avoid intermittent hangs while accessing memory even from
different Gfx units (not just display).

If cdclk/czclk >=1, PFI credits could be set as any number. To get better
performance, larger PFI credit can be assigned to PND. Otherwise if
cdclk/czclk<1, the default PFI credit of 8 should be set.

v2:
    - Change log to lower log level instead of DRM_ERROR
    - Change function name to valleyview_program_pfi_credits
    - Move program PFI credits to modeset_init instead of intel_set_mode
    - Change magic numbers to logical constants

[vsyrjala v3:
 - only program in response to cdclk update
 - program the credits also when cdclk<czclk
 - add CHV bits
 v4:
 - Change CHV cdclk<czclk credits to 12 (Vijay)]

Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Rewrite VLV/CHV watermark code
Ville Syrjälä [Thu, 5 Mar 2015 19:19:49 +0000 (21:19 +0200)]
drm/i915: Rewrite VLV/CHV watermark code

Assuming the PND deadline mechanism works reasonably we should do
memory requests as early as possible so that PND has schedule the
requests more intelligently. Currently we're still calculating
the watermarks as if VLV/CHV are identical to g4x, which isn't
the case.

The current code also seems to calculate insufficient watermarks
and hence we're seeing some underruns, especially on high resolution
displays.

To fix it just rip out the current code and replace is with something
that tries to utilize PND as efficiently as possible.

We now calculate the WM watermark to trigger when the FIFO still has
256us worth of data. 256us is the maximum deadline value supoorted by
PND, so issuing memory requests earlier would mean we probably couldn't
utilize the full FIFO as PND would attempt to return the data at
least in at least 256us. We also clamp the watermark to at least 8
cachelines as that's the magic watermark that enabling trickle feed
would also impose. I'm assuming it matches some burst size.

In theory we could just enable trickle feed and ignore the WM values,
except trickle feed doesn't work with max fifo mode anyway, so we'd
still need to calculate the SR watermarks. It seems cleaner to just
disable trickle feed and calculate all watermarks the same way. Also
trickle feed wouldn't account for the 256us max deadline value, thoguh
that may be a moot point in non-max fifo mode sicne the FIFOs are fairly
small.

On VLV max fifo mode can be used with either primary or sprite planes.
So the code now also checks all the planes (apart from the cursor)
when calculating the SR plane watermark.

We don't have to worry about the WM1 watermarks since we're using the
PND deadline scheme which means the hardware ignores WM1 values.

v2: Use plane->state->fb instead of plane->fb

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Make sure we invalidate frontbuffer on fbcon.
Rodrigo Vivi [Tue, 10 Mar 2015 00:57:07 +0000 (17:57 -0700)]
drm/i915: Make sure we invalidate frontbuffer on fbcon.

There are some cases like suspend/resume or dpms off/on sequences
that can flush frontbuffer bits. In these cases features that relies
on frontbuffer tracking can start working and user can stop getting
screen updates on fbcon having impression the system is frozen.

So, let's make sure we also invalidate frontbuffer on fbdev blank.

v2: Daniel was right, backtrace didn't show other path than this blank
one so let's make sure frontbuffer bits gets invalidate here instead of
on random write operations that doesn't garantee we track all frontbuffer
writes.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[danvet: Exchange code comments for one that complains about the
locking, like in set_par.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Update prop, int co-eff and gain threshold for CHV
Vijay Purushothaman [Thu, 5 Mar 2015 14:03:08 +0000 (19:33 +0530)]
drm/i915: Update prop, int co-eff and gain threshold for CHV

This patch implements latest PHY changes in Gain, prop and int co-efficients
based on the vco freq.

v2: Split the original changes into multiple smaller patches based on
review by Ville

v3: Addressed Ville's review comments. Fixed the error introduced in v2.
Clear the old bits before we modify those bits as part of RMW.

v4: TDC target cnt is 10 bits and not 8 bits (Ville)

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Initialize CHV digital lock detect threshold
Vijay Purushothaman [Thu, 5 Mar 2015 14:02:06 +0000 (19:32 +0530)]
drm/i915: Initialize CHV digital lock detect threshold

Initialize lock detect threshold and select coarse threshold for the
case where M2 fraction division is disabled.

v2: Split the changes into multiple smaller patches (Ville)
v3: Clear out the old bits before we modify those bits as RMW (Ville)
v4: Reset coarse threshold when M2 fraction is enabled (Ville)

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Disable M2 frac division for integer case
Vijay Purushothaman [Thu, 5 Mar 2015 14:00:57 +0000 (19:30 +0530)]
drm/i915: Disable M2 frac division for integer case

v2 : Handle M2 frac division for both M2 frac and int cases

v3 : Addressed Ville's review comments. Cleared the old bits for RMW

v4 : Fix feedfwd gain (Ville)

Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Spelling s/auxilliary/auxiliary/
Geert Uytterhoeven [Mon, 9 Mar 2015 20:21:08 +0000 (21:21 +0100)]
drm/i915: Spelling s/auxilliary/auxiliary/

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Use crtc->state->active in ilk/skl watermark calculations (v3)
Matt Roper [Mon, 9 Mar 2015 17:19:24 +0000 (10:19 -0700)]
drm/i915: Use crtc->state->active in ilk/skl watermark calculations (v3)

Existing watermark code calls intel_crtc_active() to determine whether a CRTC
is active for the purpose of watermark calculations (and bails out early if it
determines the CRTC is not active).  However intel_crtc_active() only returns
true if crtc->primary->fb is non-NULL, which isn't appropriate in the modern
age of universal planes and atomic modeset since userspace can now disable the
primary plane, but leave the CRTC (and other planes) running.

Note that commit

        commit 0fda65680e92545caea5be7805a7f0a617fb6c20
        Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
        Date:   Fri Feb 27 15:12:35 2015 +0000

            drm/i915/skl: Update watermarks for Y tiling

adds a test for primary plane enable/disable to trigger a watermark update
(previously we ignored updates to primary planes, which wasn't really correct,
but we got lucky since we always pretended the primary plane was on).  Tvrtko's
patch tries to update watermarks when we re-enable the primary plane, but that
watermark computation gets aborted early because intel_crtc_active() returns
false due to the disabled primary plane.

Switch the ILK and SKL watermark code over to use crtc->state->active rather
than calling intel_crtc_active() so that we'll properly compute watermarks when
re-enabling the primary plane.

Note that this commit doesn't touch callsites in the watermark code for
older platforms since there were concerns that doing so would lead to
other types of breakage.

Also note that all of the watermark calculation at the moment takes place after
new crtc/plane states are swapped into the DRM objects.  This will change in
the future, so we'll be working with in-flight state objects, but for the time
being, crtc->state is what we want to operate on.

v2: Don't drop primary->fb check from intel_crtc_active(), but rather replace
    ILK/SKL callsites with direct tests of crtc->state->active.  There is
    concern that messing with intel_crtc_active() will lead to other breakage for
    old hardware platforms.  (Ville)

v3: Use intel_crtc->active for now rather than crtc->state->active since
    we don't have CRTC states properly hooked up and initialized yet.
    We'll defer the switch to crtc->state->active until the atomic CRTC
    state work is farther along. (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Update intel_crtc_active() to use state values (v2)
Matt Roper [Mon, 9 Mar 2015 17:19:23 +0000 (10:19 -0700)]
drm/i915: Update intel_crtc_active() to use state values (v2)

With the switch to atomic plumbing for planes, some of our commit-time
work (e.g., watermarks) is done after the new atomic state is swapped
into the relevant DRM object, but before the DRM core has a chance to
update its legacy state values.  Switch intel_crtc_active() to look at
the state objects rather than legacy fields to ensure we operate on the
proper values.

Note that we're continuing to use intel_crtc->active here for the time
being since crtc->state isn't really hooked up yet.  Once CRTC states
are wired up properly, we'll want to switch this over to use
crtc->state->active instead.

v2: Switch back to intel_crtc->active for now; when Ander's work on CRTC
    states is ready, we can flip this over to use crtc->state->active
    instead. (Ville)

Cc: Ander Conselvan De Oliveira <conselvan2@gmail.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Exit early from psr_status if PSR is not supported by the device
Damien Lespiau [Mon, 9 Mar 2015 14:17:58 +0000 (14:17 +0000)]
drm/i915: Exit early from psr_status if PSR is not supported by the device

Static analysis was complaining that a path existed where we could use
stat[] uninitialized. Fix this by simplifying the logic to exit early if
PSR isn't supported.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fix chv cdclk support
Ville Syrjälä [Mon, 2 Mar 2015 18:07:17 +0000 (20:07 +0200)]
drm/i915: Fix chv cdclk support

The specs seem to be full of misinformation wrt. the Punit register
0x36. Some versions still show the old VLV bit layout, some the new
layout, and all of them seem to tell us nonsense about the cdclk
value encoding.

Testing on actual hardware has shown that we simply need to program
the desired CCK divider into the Punit register using the new layout of
the bits. Doing that, the status bit change to indicate the same value,
and the CCK 0x6b register also changes accordingly to indicate that CCK
is now using the new divider.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Reviewed-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Allow pixel clock up to 95% of cdclk on CHV
Ville Syrjälä [Mon, 2 Mar 2015 18:07:16 +0000 (20:07 +0200)]
drm/i915: Allow pixel clock up to 95% of cdclk on CHV

Supposedly CHV can sustain a pixel clock of up to 95% of
cdclk, as opposed to the 90% limit that was used old older
platforms. Update the cdclk selection code to allow for this.

This will allow eg. HDMI 4k modes with their 297MHz pixel clock
while still respecting the 320 MHz cdclk limit on CHV.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Reviewed-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: port A fuse straps don't work on early SKL steppings
Jesse Barnes [Fri, 6 Mar 2015 23:53:32 +0000 (15:53 -0800)]
drm/i915/skl: port A fuse straps don't work on early SKL steppings

So try to enumerate eDP unconditionally in those cases.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Add wa tag Damien dug out.]
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Restore the DDI translation tables when enabling PW1
Damien Lespiau [Fri, 6 Mar 2015 18:50:53 +0000 (18:50 +0000)]
drm/i915/skl: Restore the DDI translation tables when enabling PW1

I was dumping the DDI translation tables to make sure my patch updating
the HDMI entry was doing the right thing when I noticed that the table
was showing reset values after DPMS.

And indeed, the DDI translation registers are in power well 1 on SKL,
and so we're losing their values when shutting down eDP.

Calling intel_prepare_ddi() on PW1 enabling re-programs the table.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Remove unused condition in hsw_power_well_post_enable()
Damien Lespiau [Fri, 6 Mar 2015 18:50:52 +0000 (18:50 +0000)]
drm/i915: Remove unused condition in hsw_power_well_post_enable()

We don't use this function on gen9, no need for that test here.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Restore pipe interrupt registers after power well enabling
Damien Lespiau [Fri, 6 Mar 2015 18:50:51 +0000 (18:50 +0000)]
drm/i915/skl: Restore pipe interrupt registers after power well enabling

The pipe interrupt registers are in the actual pipe power well, so we
need to restore them when re-enable the corresponding power well.

I've also copied what we do on HSW/BDW for VGA, even if the we haven't
enabled unclaimed registers just yet.

v2: Don't run skl_power_well_post_enable() if the power well is already
    enabled (Paulo)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Mirror what we do on HSW for the power well enable log message
Damien Lespiau [Fri, 6 Mar 2015 18:50:50 +0000 (18:50 +0000)]
drm/i915/skl: Mirror what we do on HSW for the power well enable log message

Just to be more consistent with what we do on HSW.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Introduce enable_requested and is_enabled in the power well code
Damien Lespiau [Fri, 6 Mar 2015 18:50:49 +0000 (18:50 +0000)]
drm/i915/skl: Introduce enable_requested and is_enabled in the power well code

Just like what we do for HSW/BDW, having those variables makes it a bit
easier to parse the code.

Suggested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Make gen8_irq_power_well_post_enable() take a pipe mask
Damien Lespiau [Fri, 6 Mar 2015 18:50:48 +0000 (18:50 +0000)]
drm/i915/skl: Make gen8_irq_power_well_post_enable() take a pipe mask

While we only need to restore pipe B/C interrupt registers on BDW when
enabling the power well, skylake a bit more flexible and we'll also need
to restore the pipe A registers as it has its own power well that can be
toggled.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/chv: Add CHV HW status to SSEU status
Jeff McGee [Fri, 27 Feb 2015 18:22:32 +0000 (10:22 -0800)]
drm/i915/chv: Add CHV HW status to SSEU status

Collect the currently enabled counts of slice, subslice, and
execution units using the power gate control ack message
registers specific to Cherryview.

Slice/subslice/EU info and hardware status can now be
determined for CHV, so allow the debugfs SSEU status dump
to proceed for CHV devices.

Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/chv: Determine CHV slice/subslice/EU info
Jeff McGee [Fri, 27 Feb 2015 20:12:28 +0000 (12:12 -0800)]
drm/i915/chv: Determine CHV slice/subslice/EU info

Total EU was already being detected on CHV, so we just add the
additional info parameters. The detection method is changed to
be more robust in the case of subslice fusing - we don't want
to trust the EU fuse bits corresponding to subslices which are
fused-off.

v2: Fixed subslice disable bitmasks and removed unnecessary ?
    operation (Ville)

Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Make sure PND deadline mode is enabled on VLV/CHV
Ville Syrjälä [Thu, 5 Mar 2015 19:19:48 +0000 (21:19 +0200)]
drm/i915: Make sure PND deadline mode is enabled on VLV/CHV

Poke at the CBR1_VLV register during init_clock_gating to make sure the
PND deadline scheme is used.

The hardware has two modes of operation wrt. watermarks:

1) PND deadline mode:
 - memory request deadline is calculated from actual FIFO level * DDL
 - WM1 watermark values are unused (AFAIK)
 - WM watermark level defines when to start fetching data from memory
   (assuming trickle feed is not used)

2) backup mode
 - deadline is based on FIFO status, DDL is unused
 - FIFO split into three regions with WM and WM1 watermarks, each
   part specifying a different FIFO status

We want to use the PND deadline mode, so let's make sure the chicken
bit is in the correct position on init.

Also take the opportunity to refactor the shared code between VLV and
CHV to a shared function.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Read out display FIFO size on VLV/CHV
Ville Syrjälä [Thu, 5 Mar 2015 19:19:47 +0000 (21:19 +0200)]
drm/i915: Read out display FIFO size on VLV/CHV

VLV/CHV have similar DSPARB registers as older platforms, just more of
them due to more planes. Add a bit of code to read out the current FIFO
split from the registers. Will be useful later when we improve the WM
calculations.

v2: Add display_mmio_offset to DSPARB

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Pass plane to vlv_compute_drain_latency()
Ville Syrjälä [Thu, 5 Mar 2015 19:19:46 +0000 (21:19 +0200)]
drm/i915: Pass plane to vlv_compute_drain_latency()

Now that we have drm_planes for the cursor and primary we can move the
pixel_size handling into vlv_compute_drain_latency() and just pass the
appropriate plane to it.

v2: Check plane->state->fb instead of plane->fb

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (v1)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Resolve conflict with Matt's s/plane->fb/plane->state->fb/
patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Reorganize VLV DDL setup
Ville Syrjälä [Thu, 5 Mar 2015 19:19:45 +0000 (21:19 +0200)]
drm/i915: Reorganize VLV DDL setup

Introduce struct vlv_wm_values to house VLV watermark/drain latency
values. We start by using it when computing the drain latency values.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Hide VLV DDL precision handling
Ville Syrjälä [Thu, 5 Mar 2015 19:19:44 +0000 (21:19 +0200)]
drm/i915: Hide VLV DDL precision handling

Move the DDL precision handling into vlv_compute_drain_latency() so the
callers don't have to duplicate the same code to deal with it.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Simplify VLV drain latency computation
Ville Syrjälä [Thu, 5 Mar 2015 19:19:43 +0000 (21:19 +0200)]
drm/i915: Simplify VLV drain latency computation

The current drain lantency computation relies on hardcoded limits to
determine when the to use the low vs. high precision multiplier.
Rewrite the code to use a more straightforward approach.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Kill DRAIN_LATENCY_PRECISION_* defines
Ville Syrjälä [Thu, 5 Mar 2015 19:19:42 +0000 (21:19 +0200)]
drm/i915: Kill DRAIN_LATENCY_PRECISION_* defines

Kill the silly DRAIN_LATENCY_PRECISION_* defines and just use the raw
number instead.

v2: Move the sprite 32/16 -> 16/8 preision multiplier
    change to another patch (Jesse)

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Reduce CHV DDL multiplier to 16/8
Ville Syrjälä [Thu, 5 Mar 2015 19:19:41 +0000 (21:19 +0200)]
drm/i915: Reduce CHV DDL multiplier to 16/8

Apparently we must yet halve the DDL drain latency from what we're
using currently. This little nugget is not in any spec, but came
down through the grapevine.

This makes the displays a bit more stable. Not quite fully stable but at
least they don't fall over immediately on driver load.

v2: Update high_precision in valleyview_update_sprite_wm() too (Jesse)

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Disable the mmio.debug WARN after it fires
Chris Wilson [Thu, 18 Dec 2014 10:55:50 +0000 (10:55 +0000)]
drm/i915: Disable the mmio.debug WARN after it fires

If we have a single unclaimed register, we will have lots. A WARN for
each one makes the machine unusable and does not aid debugging. Convert
the i915.mmio_debug option to a counter for how many WARNs to fire
before shutting up. Even when i915.mmio_debug was disabled it would
continue to shout an *ERROR* for every interrupt, without any
information at all for debugging.

The massive verbiage was added in
commit 5978118c39c2f72fd8b39ef9c086723542384809
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Wed Jul 16 17:49:29 2014 -0300

    drm/i915: reorganize the unclaimed register detection code

v2: Automatically enable invalid mmio reporting for the *next* invalid
access if mmio_debug is disabled by default. This should give us clearer
debug information without polluting the logs too much.
v3: Compile fixes, rebase.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: Update modparam text per the thread.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: fix simple_return.cocci warnings
kbuild test robot [Thu, 5 Mar 2015 14:03:08 +0000 (22:03 +0800)]
drm/i915: fix simple_return.cocci warnings

drivers/gpu/drm/i915/intel_ringbuffer.c:435:1-4: WARNING: end returns can be simpified

 Simplify a trivial if-return sequence.  Possibly combine with a
 preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci

CC: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Do both mt and gen6 style forcewake reset on ivb probe
Mika Kuoppala [Fri, 27 Feb 2015 16:11:09 +0000 (18:11 +0200)]
drm/i915: Do both mt and gen6 style forcewake reset on ivb probe

commit 05a2fb157e44 ("drm/i915: Consolidate forcewake code")
failed to take into account that we have used to reset both
the gen6 style and the multithreaded style forcewake registers.
This is due to fact that ivb can use either, depending on how the
bios has set up the machine.

Mimic the old semantics before we have determined the correct variety
and reset both before the ecobus probe.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Remove ironlake rc6 support
John Harrison [Thu, 5 Mar 2015 14:03:03 +0000 (14:03 +0000)]
drm/i915: Remove ironlake rc6 support

Apparently, this has never worked reliably and is currently disabled. Also, the
gains are not particularly impressive. Thus rather than try to keep unused code
from decaying and having to update it for other driver changes, it was decided
to simply remove it.

For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Don't clobber plane state on internal disables
Matt Roper [Wed, 4 Mar 2015 18:49:04 +0000 (10:49 -0800)]
drm/i915: Don't clobber plane state on internal disables

We need to disable all sprite planes when disabling the CRTC.  We had
been using the top-level atomic 'disable' entrypoint to accomplish this,
which was wrong.  Not only can this lead to various locking issues, it
also modifies the actual plane state, making it impossible to restore
the plane properly later.  For example, a DPMS off followed by a DPMS on
will result in any sprite planes in use not being restored properly.

The proper solution here is to call directly into our 'commit plane'
hook with a copy of the plane's current state that has 'visible' set to
false.  Committing this dummy state will turn off the plane, but will
not touch the actual plane->state pointer, allowing us to properly
restore the plane state later.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Setup all page directories for gen8
Mika Kuoppala [Wed, 4 Mar 2015 12:55:17 +0000 (14:55 +0200)]
drm/i915: Setup all page directories for gen8

If the requested size is less than what the full range
of pdps can address, we end up setting pdps for only the
requested area.

The logical context however needs all pdp entries to be valid.
Prior to commit 06fda602dbca ("drm/i915: Create page table allocators")
we have been writing pdp entries with dma address of zero instead
of valid pdps. This is supposedly bad even if those pdps are not
addressed.

As commit 06fda602dbca ("drm/i915: Create page table allocators")
introduced more dynamic structure for pdps, we ended up oopsing
when we populated the lrc context. Analyzing this oops revealed
the fact that we have not been writing valid pdps with bsw, as
it is doing the ppgtt init with 2GB limit in some cases.

We should do the right thing and setup the non addressable part
pdps/pde/pte to scratch page through the minimal structure by
having just pdp with pde entries pointing to same page with
pte entries pointing to scratch page.

But instead of going through that trouble, setup all the pdps
through individual pd pages and pt entries, even for non
addressable parts. And let the clear range point them to scratch
page. This way we populate the lrc with valid pdps and wait
for dynamic page allocation work to land, and do the heavy lifting
for truncating page table tree according to usage.

The regression of oopsing in init was introduced by
commit 06fda602dbca ("drm/i915: Create page table allocators")

v2: Clear the range for the unused part also (Ville)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89350
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Valtteri Rantala <valtteri.rantala@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Program PLL for edp1.4 intermediate frequencies
Sonika Jindal [Sat, 21 Feb 2015 05:42:13 +0000 (11:12 +0530)]
drm/i915/skl: Program PLL for edp1.4 intermediate frequencies

v2: Making the link_clock half in switch inline with the DPLL_CTRL1_* macros
(Ville)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Add support for edp 1.4 intermediate frequencies
Sonika Jindal [Thu, 5 Mar 2015 04:32:30 +0000 (10:02 +0530)]
drm/i915/skl: Add support for edp 1.4 intermediate frequencies

eDp 1.4 supports custom frequencies.
Skylake supports following intermediate frequencies : 3.24 GHz, 2.16 GHz and
4.32 GHz along with usual LBR, HBR and HBR2 frequencies.
Read sink supported frequencies and get common frequencies from sink and
source and use these for link training.

v2: Rebased, removed calculation of min_clock since for edp it is taken as
max_clock (as per comment).
v3: Keeping single array for link rates (Satheesh)
v4: Setting LINK_BW_SET to 0 when setting LINK_RATE_SET (Satheesh)
v5: Some minor nits (Ville)
v6: Keeping separate arrays for source and sink rates (Ville)
v7: Remove redundant setting of DP_LINK_BW_SET to 0 (Ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915/skl: Read sink supported rates from edp panel
Sonika Jindal [Thu, 5 Mar 2015 04:33:58 +0000 (10:03 +0530)]
drm/i915/skl: Read sink supported rates from edp panel

v2: Using DP_SUPPORTED_LINK_RATES macro for supported_rates array (Satheesh).
v3: Reading dpcd's supported link rates tables based upon edp version in the
same patch.
v4: Move version check under is_edp (Satheesh)
v5: Using le16 for rates, some naming, and removing nested if block (Ville)
v6: Correctly using DP_MAX_SUPPORTED_RATES and removing DP_SUPPORTED_LINK_RATES
(Ville)
v7: Incorrectly removed DP_SUPPORTED_LINK_RATES in v6, re-adding it
v8: Checking return value of intel_dp_dpcd_read_wake() (Ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: add frontbuffer tracking to FBC
Paulo Zanoni [Fri, 13 Feb 2015 19:23:46 +0000 (17:23 -0200)]
drm/i915: add frontbuffer tracking to FBC

Kill the blt/render tracking we currently have and use the frontbuffer
tracking infrastructure.

Don't enable things by default yet.

v2: (Rodrigo) Fix small conflict on rebase and typo at subject.
v3: (Paulo) Rebase on RENDER_CS change.
v4: (Paulo) Rebase.
v5: (Paulo) Simplify: flushes don't have origin (Daniel).
            Also rebase due to patch order changes.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fixing mutex deadlock window at eDP DRRS
Ramalingam C [Tue, 3 Mar 2015 06:41:46 +0000 (12:11 +0530)]
drm/i915: Fixing mutex deadlock window at eDP DRRS

In invalidate and flush functions of eDP DRRS, if deferred downclock
work starts execution at a time window between acquiring the drrs
mutex and cancellation of the deferred work
(intel_edp_drrs_downclock_work), then deferred work will find
drrs mutex locked and wait for the same.

Meanwhile the function that acquired mutex drrs invalidate/flush will
wait for the completion of the deferred work before releasing the mutex.
Thats a deadlock.

To avoid such deadlock scenario, this change cancels the deferred work
before acquiring the mutex at invalidate and flush functions.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add debugfs entry for DRRS
Vandana Kannan [Tue, 3 Mar 2015 15:23:10 +0000 (20:53 +0530)]
drm/i915: Add debugfs entry for DRRS

Adding a debugfs entry to determine if DRRS is supported or not

V2: [By Ram]: Following details about the active crtc will be filled
in seq-file of the debugfs
1. Encoder output type
2. DRRS Support on this CRTC
3. DRRS current state
4. Current Vrefresh
Format is as follows:
CRTC 1:  Output: eDP, DRRS Supported: Yes (Seamless), DRRS_State: DRRS_HIGH_RR, Vrefresh: 60
CRTC 2:  Output: HDMI, DRRS Supported : No, VBT DRRS_type: Seamless
CRTC 1:  Output: eDP, DRRS Supported: Yes (Seamless), DRRS_State: DRRS_LOW_RR, Vrefresh: 40
CRTC 2:  Output: HDMI, DRRS Supported : No, VBT DRRS_type: Seamless

V3: [By Ram]: Readability is improved.
Another error case is covered [Daniel]

V4: [By Ram]: Current status of the Idleness DRRS along with
the Front buffer bits are added to the debugfs. [Rodrigo]

V5: [By Ram]: Rephrased to make it easy to understand.
And format is modified. [Rodrigo]

V6: [By Ram]: Modeset mutex are acquired for each crtc along with
renaming the Idleness detection states  [Daniel]

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[danvet: dump full busy_frontbuffer_bits and remove the dubios
computed logical state of DRRS - debugfs is about what is fact,
developers should reach their own conclusion when debugging issues.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add I915_PARAM_REVISION
Neil Roberts [Wed, 4 Mar 2015 14:41:16 +0000 (14:41 +0000)]
drm/i915: Add I915_PARAM_REVISION

Adds a parameter which can be used with DRM_I915_GETPARAM to query the
GPU revision. The intention is to use this in Mesa to implement the
WaDisableSIMD16On3SrcInstr workaround on Skylake but only for
revision 2.

Signed-off-by: Neil Roberts <neil@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Improve staged config logging
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:57 +0000 (15:21 +0200)]
drm/i915: Improve staged config logging

When logging that full mode switch is necessary, log which connector,
encoder or crtc has caused it, so it is easier to figure out what is
goind on by just looking at the log.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Add a for_each_intel_connector macro
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:56 +0000 (15:21 +0200)]
drm/i915: Add a for_each_intel_connector macro

We have similar macros for crtcs and encoders, and the pattern happens
often enough to justify the macro.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Set crtc backpointer when duplicating crtc state
Ander Conselvan de Oliveira [Tue, 3 Mar 2015 13:21:55 +0000 (15:21 +0200)]
drm/i915: Set crtc backpointer when duplicating crtc state

In the path were there is no state to duplicate, the allocated crtc
state wouldn't have the crtc backpointer initialized.

Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Reduce CHV DPLL min vco frequency to 4.8 GHz
Ville Syrjälä [Thu, 26 Feb 2015 19:01:52 +0000 (21:01 +0200)]
drm/i915: Reduce CHV DPLL min vco frequency to 4.8 GHz

The current minimum vco frequency leaves us with a gap in our supported
frequencies at 233-243 MHz. Your typical 2560x1440@60 display wants a
pixel clock of 241.5 MHz, which is just withing that gap. Reduce the
allowed vco min frequency to 4.8GHz to reduce the gap to 233-240 MHz,
and thus allow such displays to work.

4.8 GHz is actually the documented (at least in some docs) limit of the
PLL, and we just picked 4.86 GHz originally because that was the lowest
value produced by the PLL spreadsheet, which obviously didn't consider
2560x1440 displays.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: also do frontbuffer tracking on pwrites
Paulo Zanoni [Fri, 13 Feb 2015 19:23:45 +0000 (17:23 -0200)]
drm/i915: also do frontbuffer tracking on pwrites

We need this for FBC, and possibly for PSR too.

v2: Don't only flush: invalidate too (Daniel).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: pass which operation triggered the frontbuffer tracking
Paulo Zanoni [Fri, 13 Feb 2015 19:23:44 +0000 (17:23 -0200)]
drm/i915: pass which operation triggered the frontbuffer tracking

We want to port FBC to the frontbuffer tracking infrastructure, but
for that we need to know what caused the object invalidation so
we can react accordingly: CPU mmaps need manual, GTT mmaps and
flips don't need handling and ring rendering needs nukes.

v2: - s/ORIGIN_RENDER/ORIGIN_CS/ (Daniel, Rodrigo)
    - Fix copy/pasted wrong documentation
    - Rebase
v3: - Rebase
v4: - Don't pass the operation to flushes (Daniel).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agoRevert "drm/i915: Switch planes from transitional helpers to full atomic helpers"
Daniel Vetter [Mon, 2 Mar 2015 15:35:20 +0000 (16:35 +0100)]
Revert "drm/i915: Switch planes from transitional helpers to full atomic helpers"

This reverts commit 3f678c96abb43a977d2ea41aefccdc49e8a3e896.

We've been a bit too optimistic with this one here :(

The trouble is that internally we're still using these plane
update/disable hooks. Which was totally ok pre-atomic since the drm
core did all the book-keeping updating and these just mostly updated
hw state. But with atomic there's lots more going on, and it causes
heaps of trouble with the load detect code.

This one specifically cause a deadlock since both the load detect code
and the nested plane atomic helper functions tried to grab the same
locks. It only blows up because of the evil tricks though we play with
the implicit ww acquire context.

Applying this revert unearths the NULL deref on already freed
framebuffer objects reported as a regression in 4.0 by various people.

Fixing this will be fairly invasive, hence revert even for the
4.1-next queue.

Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm/i915/skl: Only use the 800mV+2bB HDMI translation entry
Damien Lespiau [Mon, 2 Mar 2015 16:19:36 +0000 (16:19 +0000)]
drm/i915/skl: Only use the 800mV+2bB HDMI translation entry

This translation entry was updated after electrical validation by the hw
team. The other entries are removed from existence as they aren't
validated and because the sole use of a certain type of level shifter
for SKL products is anticipated.

v2: Remove all the other entries and force the use of the 800mv+2dB
    config (Sonika)

Suggested-by: Sonika Jindal <sonika.jindal@intel.com>
Cc: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Make for_each_sprite() take dev_priv as argument
Damien Lespiau [Sat, 28 Feb 2015 14:54:09 +0000 (14:54 +0000)]
drm/i915: Make for_each_sprite() take dev_priv as argument

Implicit usage of local variables in macros isn't exactly the greatest
thing in the world, especially when that variable is the drm device and
we want to move towards a broader use of the i915 device structure.

Let's make for_each_sprite() take dev_priv as its first argument then.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Chris Wilson <chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Make for_each_plane() take dev_priv as argument
Damien Lespiau [Sat, 28 Feb 2015 14:54:08 +0000 (14:54 +0000)]
drm/i915: Make for_each_plane() take dev_priv as argument

Implicit usage of local variables in macros isn't exactly the greatest
thing in the world, especially when that variable is the drm device and
we want to move towards a broader use of the i915 device structure.

Let's make for_each_plane() take dev_priv as its first argument then.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Chris Wilson <chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Remove irq-related FIXME in reset code
Daniel Vetter [Mon, 23 Feb 2015 11:03:28 +0000 (12:03 +0100)]
drm/i915: Remove irq-related FIXME in reset code

With the two-step reset counter increments which braket the actual
reset code and the subsequent wake-up we're guaranteeing that all the
lockless waiters _will_ be woken up. And since we unconditionally bail
out of waits with -EAGAIN (or -EIO) in that case there is not risk of
lost interrupt enabling bits when the lockless wait code races against
a gpu reset.

Let's remove this FIXME as resolved then.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Fix trivial typos in comments and warning message
Yannick Guerrini [Sat, 28 Feb 2015 16:20:41 +0000 (17:20 +0100)]
drm/i915: Fix trivial typos in comments and warning message

Change 'mutliple' to 'multiple'
Change 'mutlipler' to 'multiplier'
Change 'Haswel' to 'Haswell'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Use plane->state->fb in watermark code (v2)
Matt Roper [Fri, 27 Feb 2015 18:12:01 +0000 (10:12 -0800)]
drm/i915: Use plane->state->fb in watermark code (v2)

plane->fb is a legacy pointer that not always be up-to-date (or updated
early enough).  Make sure the watermark code uses plane->state->fb so
that we're always doing our calculations based on the correct
framebuffers.

This patch was generated by Coccinelle with the following semantic
patch:

        @@
        struct drm_plane *P;
        @@
        - P->fb
        + P->state->fb

v2: Rebase

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/i915: Kill intel_crtc->cursor_{width, height} (v2)
Matt Roper [Fri, 27 Feb 2015 18:12:00 +0000 (10:12 -0800)]
drm/i915: Kill intel_crtc->cursor_{width, height} (v2)

The cursor size fields in intel_crtc just duplicate the data from
cursor->state.crtc_{w,h} so we don't need them any more.  Worse, their
use in the watermark code actually introduces a subtle bug since they
don't get updated to mirror the state values until the plane commit
stage, which is *after* we've already used them to calculate new
watermark values.  This happens because we had to move watermark updates
slightly earlier (outside vblank evasion) in commit

        commit 32b7eeec4d1e861230b09d437e95d76c86ff4a68
        Author: Matt Roper <matthew.d.roper@intel.com>
        Date:   Wed Dec 24 07:59:06 2014 -0800

            drm/i915: Refactor work that can sleep out of commit (v7)

Dropping the intel_crtc fields and just using the state values (which
are properly updated by the time watermark updates happen) should solve
the problem.

Aside from the actual removal of the struct fields (which are formatted
in a way that I couldn't figure out how to match in Coccinelle), the
rest of this patch was generated via the following semantic patch:

        // Drop assignment
        @@
        struct intel_crtc *C;
        struct drm_plane_state S;
        @@
        (
        - C->cursor_width = S.crtc_w;
        |
        - C->cursor_height = S.crtc_h;
        )

        // Replace usage
        @@
        struct intel_crtc *C;
        expression E;
        @@
        (
        - C->cursor_width
        + C->base.cursor->state->crtc_w
        |
        - C->cursor_height
        + C->base.cursor->state->crtc_h
        |
        - to_intel_crtc(E)->cursor_width
        + E->cursor->state->crtc_w
        |
        - to_intel_crtc(E)->cursor_height
        + E->cursor->state->crtc_h
        )

v2: Rebase

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joe Konno <joe.konno@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89346
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agoMerge tag 'topic/drm-misc-2015-03-10' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Wed, 11 Mar 2015 02:15:06 +0000 (12:15 +1000)]
Merge tag 'topic/drm-misc-2015-03-10' of git://anongit.freedesktop.org/drm-intel into drm-next

Another pile of misc drm patches all over, mostly polish for atomic. Last
minute rebase was to avoid the broken merge.

* tag 'topic/drm-misc-2015-03-10' of git://anongit.freedesktop.org/drm-intel:
  drm: Check in setcrtc if the primary plane supports the fb pixel format
  drm: Lighten sysfs connector 'status'
  drm/plane-helper: unexport drm_primary_helper_create_plane
  drm: Share plane pixel format check code between legacy and atomic
  drm: Fix trivial typos in comments
  drm/dp: add DPCD definitions from eDP 1.4
  drm/dp: add DPCD definitions from DP 1.1 and 1.2a
  drm: Fixup racy refcounting in plane_force_disable
  drm/i915: Rotation property is now handled in DRM core
  drm: Complete moving rotation property to core
  drm/dp: add DPCD definitions from eDP 1.2
  drm/dp: indentation and ordering cleanups
  drm/atomic-helper: Fix kerneldoc for prepare_planes
  drm: Remove redundant code in the getencoder ioctl

9 years agodrm: Check in setcrtc if the primary plane supports the fb pixel format
Laurent Pinchart [Mon, 9 Mar 2015 08:41:07 +0000 (10:41 +0200)]
drm: Check in setcrtc if the primary plane supports the fb pixel format

Drivers implementing the universal planes API report the list of
supported pixel formats for the primary plane. Make sure the fb passed
to the setcrtc ioctl is compatible.

Drivers not implementing the universal planes API will have no format
reported for the primary plane, skip the check in that case.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm: Lighten sysfs connector 'status'
Chris Wilson [Fri, 6 Mar 2015 12:36:42 +0000 (12:36 +0000)]
drm: Lighten sysfs connector 'status'

Since the beginning, sysfs/connector/status has done a heavyweight
detection of the current connector status. But no user, such as upowerd
or logind, has ever desired to initiate a probe. Move the probing into a
new attribute so that existing readers get the behaviour they desire.

v2: David Herrmann suggested using "echo detect > /sys/.../status" to
trigger the probing, which is a fine idea. This extends that to also
allow the user to apply the force detection overrides at runtime.

v3: Now with airlied's email address fixed! Requires sysfs_streq()

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/plane-helper: unexport drm_primary_helper_create_plane
Daniel Vetter [Thu, 5 Mar 2015 09:32:44 +0000 (10:32 +0100)]
drm/plane-helper: unexport drm_primary_helper_create_plane

We shouldn't tempt driver writers into using this since it uses a
default format list which is likely wrong. And when that's done we can
simplify the code a bit, too.

Noticed while reviewing a patch from Laurent.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm: Share plane pixel format check code between legacy and atomic
Laurent Pinchart [Thu, 5 Mar 2015 00:25:43 +0000 (02:25 +0200)]
drm: Share plane pixel format check code between legacy and atomic

Both the legacy and atomic helpers need to check whether a plane
supports a given pixel format. The code is currently duplicated, share
it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[danvet: Slightly extend the docbook.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm: Fix trivial typos in comments
Yannick Guerrini [Wed, 4 Mar 2015 08:30:09 +0000 (09:30 +0100)]
drm: Fix trivial typos in comments

Change 'pixes' to 'pixels'
Change 'enabel' to 'enable'
Change 'enabeling' to 'enabling'

Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/dp: add DPCD definitions from eDP 1.4
Jani Nikula [Fri, 27 Feb 2015 11:11:14 +0000 (13:11 +0200)]
drm/dp: add DPCD definitions from eDP 1.4

Add a number of DPCD definitions from eDP 1.4.

v2: s/DP_ALPM_LOCK_TIMEOUT_ERROR_STATUS/DP_ALPM_LOCK_TIMEOUT_ERROR/
   (Sonika)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/dp: add DPCD definitions from DP 1.1 and 1.2a
Jani Nikula [Fri, 27 Feb 2015 11:10:38 +0000 (13:10 +0200)]
drm/dp: add DPCD definitions from DP 1.1 and 1.2a

Add a number of DPCD definitions from DP 1.1 and 1.2a.

v2: drop wrong DP version reference, rename DP training set macros
(Sonika).

Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm: Fixup racy refcounting in plane_force_disable
Daniel Vetter [Fri, 27 Feb 2015 11:58:13 +0000 (12:58 +0100)]
drm: Fixup racy refcounting in plane_force_disable

Originally it was impossible to be dropping the last refcount in this
function since there was always one around still from the idr. But in

commit 83f45fc360c8e16a330474860ebda872d1384c8c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Aug 6 09:10:18 2014 +0200

    drm: Don't grab an fb reference for the idr

we've switched to weak references, broke that assumption but forgot to
fix it up.

Since we still force-disable planes it's only possible to hit this
when racing multiple rmfb with fbdev restoring or similar evil things.
As long as userspace is nice it's impossible to hit the BUG_ON.

But the BUG_ON would most likely be hit from fbdev code, which usually
invovles the console_lock besides all modeset locks. So very likely
we'd never get the bug reports if this was hit in the wild, hence
better be safe than sorry and backport.

Spotted by Matt Roper while reviewing other patches.

Cc: stable@vger.kernel.org
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm/i915: Rotation property is now handled in DRM core
Tvrtko Ursulin [Thu, 26 Feb 2015 13:49:18 +0000 (13:49 +0000)]
drm/i915: Rotation property is now handled in DRM core

So no need to have code which never gets called in the driver.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm: Complete moving rotation property to core
Tvrtko Ursulin [Thu, 26 Feb 2015 13:49:17 +0000 (13:49 +0000)]
drm: Complete moving rotation property to core

Commit 1da30627fc511a57c9bd23a02c97f0576379f761 "drm: Add rotation value to
plane state" moved the rotation property to DRM core but only did the set
property part. This does the get property part as well.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/dp: add DPCD definitions from eDP 1.2
Jani Nikula [Wed, 25 Feb 2015 12:46:53 +0000 (14:46 +0200)]
drm/dp: add DPCD definitions from eDP 1.2

Mostly display control related DPCD addresses.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/dp: indentation and ordering cleanups
Jani Nikula [Wed, 25 Feb 2015 12:46:51 +0000 (14:46 +0200)]
drm/dp: indentation and ordering cleanups

Keep the DPCD macros ordered by address, and make indentation conform to
the rest of the file.

commit e045d20bef41707dbba676e58624b54f9f39e172
Author: Sonika Jindal <sonika.jindal@intel.com>
Date:   Thu Feb 19 13:16:44 2015 +0530

    drm: Adding edp1.4 specific dpcd macros

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
9 years agodrm/atomic-helper: Fix kerneldoc for prepare_planes
Daniel Vetter [Thu, 26 Feb 2015 13:17:38 +0000 (14:17 +0100)]
drm/atomic-helper: Fix kerneldoc for prepare_planes

Copypaste-fail from cleanup_planes. Reported by Tvrtko.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm: Remove redundant code in the getencoder ioctl
Daniel Vetter [Wed, 25 Feb 2015 16:52:05 +0000 (17:52 +0100)]
drm: Remove redundant code in the getencoder ioctl

When enabling atomic state object for this ioctl in

commit abd69c55dd8f1f71b33b8c6165217f4329db8f25
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Nov 25 23:50:05 2014 +0100

    drm: Handle atomic state properly in kms getfoo ioctl

I've forgotten to remove this hunk in one of the later revisions.
drm_encoder_get_crtc already does this.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
9 years agodrm/i915: Fix struct_mutex deadlock due to merge fumble
Ville Syrjälä [Mon, 9 Mar 2015 19:08:37 +0000 (21:08 +0200)]
drm/i915: Fix struct_mutex deadlock due to merge fumble

commit a8c6ecb3be7029881f7c95e5e201a629094a4e1a
Merge: 8dd0eb35 9eccca0
Author: Dave Airlie <airlied@redhat.com>
Date:   Mon Mar 9 19:58:30 2015 +1000

    Merge tag 'v4.0-rc3' into drm-next

managed to pick the wrong code to resolve the conflict and left us with
a mutex_lock(struct_mutex) without the mutex_unlock(struct_mutex) leading
to a deadlock. Fix the problem by recovering the correct code which doesn't
need the lock.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
9 years agoMerge tag 'v4.0-rc3' into drm-next
Dave Airlie [Mon, 9 Mar 2015 09:58:30 +0000 (19:58 +1000)]
Merge tag 'v4.0-rc3' into drm-next

Linux 4.0-rc3 backmerge to fix two i915 conflicts, and get
some mainline bug fixes needed for my testing box

Conflicts:
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_display.c

9 years agoMerge tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel...
Dave Airlie [Mon, 9 Mar 2015 09:41:15 +0000 (19:41 +1000)]
Merge tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel into drm-next

- Y tiling support for scanout from Tvrtko&Damien
- Remove more UMS support
- some small prep patches for OLR removal from John Harrison
- first few patches for dynamic pagetable allocation from Ben Widawsky, rebased
  by tons of other people
- DRRS support patches (Sonika&Vandana)
- fbc patches from Paulo
- make sure our vblank callbacks aren't called when the pipes are off
- various patches all over

* tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel: (61 commits)
  drm/i915: Update DRIVER_DATE to 20150227
  drm/i915: Clarify obj->map_and_fenceable
  drm/i915/skl: Allow Y (and Yf) frame buffer creation
  drm/i915/skl: Update watermarks for Y tiling
  drm/i915/skl: Updated watermark programming
  drm/i915/skl: Adjust get_plane_config() to support Yb/Yf tiling
  drm/i915/skl: Teach pin_and_fence_fb_obj() about Y tiling constraints
  drm/i915/skl: Adjust intel_fb_align_height() for Yb/Yf tiling
  drm/i915/skl: Allow scanning out Y and Yf fbs
  drm/i915/skl: Add new displayable tiling formats
  drm/i915: Remove DRIVER_MODESET checks from modeset code
  drm/i915: Remove regfile code&data for UMS suspend/resume
  drm/i915: Remove DRIVER_MODESET checks from gem code
  drm/i915: Remove DRIVER_MODESET checks in the gpu reset code
  drm/i915: Remove DRIVER_MODESET checks from suspend/resume code
  drm/i915: Remove DRIVER_MODESET checks in load/unload/close code
  drm/i915: fix a printk format
  drm/i915: Add media rc6 residency file to sysfs
  drm/i915: Add missing description to parameter in alloc_pt_range
  drm/i915: Removed the read of RP_STATE_CAP from sysfs/debugfs functions
  ...

9 years agoLinux 4.0-rc3
Linus Torvalds [Sun, 8 Mar 2015 23:09:09 +0000 (16:09 -0700)]
Linux 4.0-rc3

9 years agosunrpc: fix braino in ->poll()
Al Viro [Sat, 7 Mar 2015 21:08:46 +0000 (21:08 +0000)]
sunrpc: fix braino in ->poll()

POLL_OUT isn't what callers of ->poll() are expecting to see; it's
actually __SI_POLL | 2 and it's a siginfo code, not a poll bitmap
bit...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Cc: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMerge tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 8 Mar 2015 19:47:18 +0000 (12:47 -0700)]
Merge tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here's a round of USB fixes for 4.0-rc3.

  Nothing major, the usual gadget, xhci and usb-serial fixes and a few
  new device ids as well.

  All have been in linux-next successfully"

* tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits)
  xhci: Workaround for PME stuck issues in Intel xhci
  xhci: fix reporting of 0-sized URBs in control endpoint
  usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
  USB: ch341: set tty baud speed according to tty struct
  USB: serial: cp210x: Adding Seletek device id's
  USB: pl2303: disable break on shutdown
  USB: mxuport: fix null deref when used as a console
  USB: serial: clean up bus probe error handling
  USB: serial: fix port attribute-creation race
  USB: serial: fix tty-device error handling at probe
  USB: serial: fix potential use-after-free after failed probe
  USB: console: add dummy __module_get
  USB: ftdi_sio: add PIDs for Actisense USB devices
  Revert "USB: serial: make bulk_out_size a lower limit"
  cdc-acm: Add support for Denso cradle CU-321
  usb-storage: support for more than 8 LUNs
  uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS539
  USB: usbfs: don't leak kernel data in siginfo
  xhci: Clear the host side toggle manually when endpoint is 'soft reset'
  xhci: Allocate correct amount of scratchpad buffers
  ...

9 years agoMerge tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sun, 8 Mar 2015 19:25:40 +0000 (12:25 -0700)]
Merge tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some tty and serial driver fixes for 4.0-rc3.

  Along with the atime fix that you know about, here are some other
  serial driver bugfixes as well.  Most notable is a wait_until_sent
  bugfix that was traced back to being around since before 2.6.12 that
  Johan has fixed up.

  All have been in linux-next successfully"

* tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  TTY: fix tty_wait_until_sent maximum timeout
  TTY: fix tty_wait_until_sent on 64-bit machines
  USB: serial: fix infinite wait_until_sent timeout
  TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
  net: irda: fix wait_until_sent poll timeout
  serial: uapi: Declare all userspace-visible io types
  serial: core: Fix iotype userspace breakage
  serial: sprd: Fix missing spin_unlock in sprd_handle_irq()
  console: Fix console name size mismatch
  tty: fix up atime/mtime mess, take four
  serial: 8250_dw: Fix get_mctrl behaviour
  serial:8250:8250_pci: delete unneeded quirk entries
  serial:8250:8250_pci: fix redundant entry report for WCH_CH352_2S
  Change email address for 8250_pci
  serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO"
  Revert "tty/serial: of_serial: add DT alias ID handling"

9 years agoMerge tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 8 Mar 2015 19:20:10 +0000 (12:20 -0700)]
Merge tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some IIO and staging driver fixes for 4.0-rc3.

  Details are in the shortlog, nothing major, mostly IIO fixes for
  reported issues.

  All have been in linux-next successfully"

* tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
  staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel
  staging: comedi: vmk80xx: remove "firmware version" kernel messages
  staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()
  iio: ak8975: fix AK09911 dependencies
  iio: common: ssp_sensors: Protect PM-only functions to kill warning
  IIO: si7020: Allocate correct amount of memory in devm_iio_device_alloc
  Revert "iio:humidity:si7020: fix pointer to i2c client"
  iio: light: gp2ap020a00f: Select REGMAP_I2C
  iio: light: jsa1212: Select REGMAP_I2C
  iio: ad5686: fix optional reference voltage declaration
  iio:adc:mcp3422 Fix incorrect scales table
  iio: mxs-lradc: fix iio channel map regression
  iio: imu: adis16400: Fix sign extension
  staging: iio: ad2s1200: Fix sign extension
  iio: mxs-lradc: only update the buffer when its conversions have finished
  iio: mxs-lradc: make ADC reads not unschedule touchscreen conversions
  iio: mxs-lradc: make ADC reads not disable touchscreen interrupts
  iio: mxs-lradc: separate touchscreen and buffer virtual channels
  iio: imu: inv_mpu6050: Prevent dereferencing NULL
  iio: iadc: wait_for_completion_timeout time in jiffies
  ...

9 years agoMerge tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 8 Mar 2015 19:15:47 +0000 (12:15 -0700)]
Merge tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are two char/misc fixes for 4.0-rc3.

  One is a reported binder driver fix needed due to a change in the mm
  core that happened in 4.0-rc1.  Another is a mei driver fix that
  resolves a reported issue in that driver.

  Both have been in linux-next for a while"

* tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mei: make device disabled on stop unconditionally
  android: binder: fix binder mmap failures

9 years agoMerge tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char...
Linus Torvalds [Sun, 8 Mar 2015 18:51:04 +0000 (11:51 -0700)]
Merge tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull "code of conflict" from Greg KH:
 "This file tries to set the rational basis for our code reviews, gives
  some advice on how to conduct them, and provides an excalation channel
  for any kernel developers if they so desire it"

[ Let's see how this works ]

* tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Code of Conflict

9 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 7 Mar 2015 19:56:30 +0000 (11:56 -0800)]
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "A set of updates and bugfixes for the new designware-baytrail driver.

  And a documentation bugfix"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx: add required clocks property to binding
  i2c: designware-baytrail: baytrail_i2c_acquire() might sleep
  i2c: designware-baytrail: cross-check lock functions
  i2c: designware-baytrail: fix sparse warnings
  i2c: designware-baytrail: fix typo in error path
  i2c: designware-baytrail: describe magic numbers

9 years agoMerge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sat, 7 Mar 2015 19:52:03 +0000 (11:52 -0800)]
Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

Pull slave-dmaengine fixes from Vinod Koul:
 "This contains small fixes spread across the drivers"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: mmp_pdma: fix warning about slave caps
  dmaengine: qcom_bam_dma: fix wrong register offsets
  dmaengine: bam-dma: fix a warning about missing capabilities
  dmaengine: ioatdma: workaround for incorrect DMACAP register
  dmaengine: at_xdmac: fix for chan conf simplification
  dmaengine: dw: don't handle interrupt when dmaengine is not used
  dma: mmp-tdma: refine dma disable and dma-pos update
  dmaengine: shdma: Move DMA stop to (runtime) suspend callbacks
  dmaenegine: mmp-pdma: fix irq handler overwrite physical chan issue