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11 years agodrm/i915: Pass crtc to intel_update_watermarks()
Ville Syrjälä [Tue, 10 Sep 2013 08:40:40 +0000 (11:40 +0300)]
drm/i915: Pass crtc to intel_update_watermarks()

Passing the appropriate crtc to intel_update_watermarks() should help
in avoiding needless work in the future.

v2: Avoid clash with internal 'crtc' variable in some wm functions

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: include hangcheck action and score in error_state
Mika Kuoppala [Fri, 6 Sep 2013 13:03:28 +0000 (16:03 +0300)]
drm/i915: include hangcheck action and score in error_state

Score and action reveals what all the rings were doing
and why hang was declared. Add idle state so that
we can distinguish between waiting and idle ring.

v2: - add idle as a hangcheck action
    - consensed hangcheck status to single line (Chris)
    - mark active explicitly when we are making progress (Chris)

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: ban badly behaving contexts
Mika Kuoppala [Fri, 30 Aug 2013 13:19:28 +0000 (16:19 +0300)]
drm/i915: ban badly behaving contexts

Now when we have mechanism in place to track which context
was guilty of hanging the gpu, it is possible to punish
for bad behaviour.

If context has recently submitted a faulty batchbuffers guilty of
gpu hang and submits another batch which hangs gpu in quick
succession, ban it permanently. If ctx is banned, no more
batchbuffers will be queued for execution.

There is no need for global wedge machinery anymore and
it would be unwise to wedge the whole gpu if we have multiple
hanging batches queued for execution. Instead just ban
the guilty ones and carry on.

v2: Store guilty ban status bool in gpu_error instead of pointers
    that might become danling before hang is declared.

v3: Use return value for banned status instead of stashing state
    into gpu_error (Chris Wilson)

v4: - rebase on top of fixed hang stats api
    - add define for ban period
    - rename commit and improve commit msg

v5: - rely context banning instead of wedging the gpu
    - beautification and fix for ban calculation (Chris)

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>
11 years agodrm/i915: add support for per-pipe power sequencing on vlv
Jani Nikula [Fri, 6 Sep 2013 04:40:05 +0000 (07:40 +0300)]
drm/i915: add support for per-pipe power sequencing on vlv

VLV has per-pipe PP registers. Set up power sequencing on mode set. The
connector init time setup is problematic, since we don't have a pipe at
that time. Cook up something.

v2:
 - use vlv_power_sequencer_pipe() also in _pp_{ctrl,stat}_reg()
 - use PANEL_PORT_SELECT_DPC_VLV (Ville)

v3: make checkpatch happier

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Make checkpatch a bit more happier still ...]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: clean up power sequencing register port select definitions
Jani Nikula [Thu, 5 Sep 2013 13:44:46 +0000 (16:44 +0300)]
drm/i915: clean up power sequencing register port select definitions

Remove duplicates, add VLV specific macros for port B and C.

v2: also add PANEL_PORT_SELECT_DPC_VLV for clarity (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: move backlight enable later in vlv enable sequence
Jani Nikula [Thu, 5 Sep 2013 13:44:45 +0000 (16:44 +0300)]
drm/i915: move backlight enable later in vlv enable sequence

Follow-up to
commit 5004945f1d6c0282c0288afa89ad85d7f2bea4d5
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Tue Jul 30 12:20:32 2013 +0300

    drm/i915: move encoder->enable callback later in VLV crtc enable

v2: Rebase on the renamed enable hooks, adding clarity (Ville)

Reference: http://mid.gmane.org/CAKMK7uFs9EMvMW8BnS24e5UNm1D7JrfVg3SD5SDFtVEamGfOOg@mail.gmail.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: name intel dp hooks per platform
Jani Nikula [Fri, 6 Sep 2013 04:38:29 +0000 (07:38 +0300)]
drm/i915: name intel dp hooks per platform

In line with the rest of the code base. No functional changes.

v2: also s/intel_pre_enable_dp/g4x_pre_enable_dp/ for consistency (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Remove unused mode_fixup() vfunc of struct intel_dvo_dev_ops
Damien Lespiau [Thu, 5 Sep 2013 17:52:07 +0000 (18:52 +0100)]
drm/i915: Remove unused mode_fixup() vfunc of struct intel_dvo_dev_ops

It's totally unused, so remove the last mode_fixup appearance in i915.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Add additional pipe parameter for vlv_dpio_read and vlv_dpio_write. v2
Chon Ming Lee [Thu, 5 Sep 2013 12:41:49 +0000 (20:41 +0800)]
drm/i915: Add additional pipe parameter for vlv_dpio_read and vlv_dpio_write. v2

The patch doesn't contain functional change, but is to prepare for
future platform which has different DPIO phy.  The additional pipe
parameter will use to select which phy to target for.

v2: Update the commit message and add static for the new function.
(Jani/Ville)

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915; Preallocate the lazy request
Chris Wilson [Wed, 4 Sep 2013 09:45:52 +0000 (10:45 +0100)]
drm/i915; Preallocate the lazy request

It is possible for us to be forced to perform an allocation for the lazy
request whilst running the shrinker. This allocation may fail, leaving
us unable to reclaim any memory leading to premature OOM. A neat
solution to the problem is to preallocate the request at the same time
as acquiring the seqno for the ring transaction. This means that we can
report ENOMEM prior to touching the rings.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Rename ring->outstanding_lazy_request
Chris Wilson [Wed, 4 Sep 2013 09:45:51 +0000 (10:45 +0100)]
drm/i915: Rename ring->outstanding_lazy_request

Prior to preallocating an request for lazy emission, rename the existing
field to make way (and differentiate the seqno from the request struct).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Kill IRONLAKE_FDI_FREQ check
Ville Syrjälä [Tue, 3 Sep 2013 10:31:38 +0000 (13:31 +0300)]
drm/i915: Kill IRONLAKE_FDI_FREQ check

ironlake_fdi_compute_config() already checks that we have enough
FDI bandwidth. And it doesn't just use a hardcoded value but takes
into account factors such as the actual FDI frequency, shared FDI
B/C lanes, etc.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Move Valleyview DP DPLL divisor calc to intel_dp_set_clock v2
Chon Ming Lee [Tue, 3 Sep 2013 17:30:38 +0000 (01:30 +0800)]
drm/i915: Move Valleyview DP DPLL divisor calc to intel_dp_set_clock v2

For DP pll settings, there is only two golden configs.  Instead of
running through the algorithm to determine it, hardcode the value and get it
determine in intel_dp_set_clock.

v2: Rework on the intel_limit compiler warning. (Jani)

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
[danvet: Fix up checkpatch issues.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Modify DP set clock to accomodate more eDP timings v2
Chon Ming Lee [Tue, 3 Sep 2013 17:30:37 +0000 (01:30 +0800)]
drm/i915: Modify DP set clock to accomodate more eDP timings v2

eDP 1.4 supports 4-5 extra link rates in additional to current 2 link
rate.  Create a structure to store the DPLL divisor data to improve
readability.

v2: Fix the gen4_dpll/pch_dpll initialization to C99
designated initializers, and use a single loop for all platforms. (Jani and Daniel)

Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
[danvet: Fix up checkpatch warnings.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: do display power state notification on crtc enable/disable
Jani Nikula [Fri, 30 Aug 2013 16:40:32 +0000 (19:40 +0300)]
drm/i915: do display power state notification on crtc enable/disable

The spec says to notify prior to power down and after power up. It is
unclear whether it makes a difference.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add opregion function to notify bios of adapter power state
Jani Nikula [Fri, 30 Aug 2013 16:40:31 +0000 (19:40 +0300)]
drm/i915: add opregion function to notify bios of adapter power state

Notifying the bios lets it enter power saving states.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add opregion function to notify bios of encoder enable/disable
Jani Nikula [Fri, 30 Aug 2013 16:40:30 +0000 (19:40 +0300)]
drm/i915: add opregion function to notify bios of encoder enable/disable

The bios interface seems messy, and it's hard to tell what the bios
really wants. At first, only add support for DDI based machines (hsw+),
and see how it turns out.

The spec says to notify prior to power down and after power up. It is
unclear whether it makes a difference.

v2:
 - squash notification function and callers patches together (Daniel)
 - move callers to haswell_crtc_{enable,disable} (Daniel)
 - rename notification function (Chris)

v3:
 - separate notification function and callers again, as it's not clear
   whether the display power state notification is the right thing to do
   after all

v4: per Paulo's review:
 - drop LVDS
 - WARN on unsupported encoder types

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: expose intel_ddi_get_encoder_port()
Jani Nikula [Fri, 30 Aug 2013 16:40:28 +0000 (19:40 +0300)]
drm/i915: expose intel_ddi_get_encoder_port()

In preparation for followup work.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add plumbing for SWSCI
Jani Nikula [Mon, 2 Sep 2013 07:38:59 +0000 (10:38 +0300)]
drm/i915: add plumbing for SWSCI

SWSCI is a driver to bios call interface.

This checks for SWSCI availability and bios requested callbacks, and
filters out any calls that shouldn't happen. This way the callers don't
need to do the checks all over the place.

v2: silence some checkpatch nagging

v3: set PCI_SWSCI bit 0 to trigger interrupt (Mengdong Lin)

v4: remove an extra #define (Jesse)

v5: spec says s/w is responsible for clearing PCI_SWSCI bit 0 too

v6: per Paulo's review and more:
 - fix sub-function mask
 - add exit parameter
 - add define for set panel details call
 - return more errors from swsci
 - clean up the supported/requested callbacks bit masks mess
 - use DSLP for timeout
 - fix build for CONFIG_ACPI=n

v7: tiny adjustment of requested vs. supported SBCB callbacks handling (Paulo)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: It's its!
Damien Lespiau [Fri, 30 Aug 2013 13:40:26 +0000 (14:40 +0100)]
drm/i915: It's its!

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Rearrange the comments in i915_add_request()
Chris Wilson [Mon, 26 Aug 2013 22:50:54 +0000 (19:50 -0300)]
drm/i915: Rearrange the comments in i915_add_request()

The comments were a little out-of-sequence with the code, forcing the
reader to jump around whilst reading. Whilst moving the comments around,
add one to explain the context reference.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Do not add an interrupt for a context switch
Chris Wilson [Mon, 26 Aug 2013 22:50:53 +0000 (19:50 -0300)]
drm/i915: Do not add an interrupt for a context switch

We use the request to ensure we hold a reference to the context for the
duration that it remains in use by the ring. Each request only holds a
reference to the current context, hence we emit a request after
switching contexts with the final reference to the old context. However,
the extra interrupt caused by that request is not useful (no timing
critical function will wait for the context object), instead the overhead
of servicing the IRQ shows up in some (lightweight) benchmarks. In order
to keep the useful property of using the request to manage the context
lifetime, we want to add a dummy request that is associated with the
interrupt from the subsequent real request following the batch.

The extra interrupt was added as a side-effect of using
i915_add_request() in

commit 112522f6789581824903f6f72082b5b841a7f0f9
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu May 2 16:48:07 2013 +0300

    drm/i915: put context upon switching

v2: Daniel convinced me that the request here was solely for context
lifetime tracking and that we have the active ref to keep the object
alive whilst the MI_SET_CONTEXT. So the only concern then is which
context should get the blame for MI_SET_CONTEXT failing. The old scheme
added a request for the old context so that any hang upto and including
the switch away would mark the old context as guilty. Now any hang here
implicates the new context. However since we have already gone through a
complete flush with the last context in its last request, and all that
lies in no-man's-land is an invalidate flush and the MI_SET_CONTEXT, we
should be safe in not unduly placing blame on the new context.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Fix list corruption in vma_unbind
Daniel Vetter [Thu, 29 Aug 2013 17:50:31 +0000 (19:50 +0200)]
drm/i915: Fix list corruption in vma_unbind

The saga around the breadcrumb vmas used by execbuf continues ...

This time around we've managed to unconditionally move the object to
the unbound list on the last vma unbind even though it might never
have been on either the bound or unbound list. Hilarity ensued.

Chris Wilson tracked this one down but compared to his patches I've
simply opted to completely separate the unbound case for not-yet bound
vmas. Otherwise we imo end up with semantically hard to parse checks
around the list_move_tail(global_list, ...).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68462
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Restore the preliminary HW check.
Ben Widawsky [Fri, 23 Aug 2013 23:00:07 +0000 (16:00 -0700)]
drm/i915: Restore the preliminary HW check.

We still maintain code internally that cares about preliminary support.
Leaving the check here doesn't hurt anyone, and should keep things more
in line.

This time around, stick the info in the intel_info structure, and also
change the error from DRM_ERROR->DRM_INFO.

This is a partial revert of:
commit 590e4df8c82e6c2707ae12ba6672ab6fb9cd4b89
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Wed May 8 10:45:15 2013 -0700

    drm/i915: VLV support is no longer preliminary

Daniel, I'll provide the fix ups for internal too if/when you merge
this (if you want).

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Report enabled slices on Haswell GT3
Rodrigo Vivi [Wed, 28 Aug 2013 19:45:46 +0000 (16:45 -0300)]
drm/i915: Report enabled slices on Haswell GT3

Batchbuffers constructed by userspace can conditionalise their URB
allocations through the use of the MI_SET_PREDICATE command. This
command can read the MI_PREDICATE_RESULT_2 register to see how many
slices are enabled on GT3, and by virtue of the result, scale their
memory allocations to fit enabled memory.

Of course, this only works if the kernel sets the appropriate bit in the
register first.

v2: Better commit subject and message by Chris Wilson.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Credits-to: Yejun Guo <yejun.guo@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915/dsi: s/size_t/int/
Daniel Vetter [Wed, 28 Aug 2013 08:38:49 +0000 (10:38 +0200)]
drm/i915/dsi: s/size_t/int/

This fixes a printf warn from gcc:

drivers/gpu/drm/i915/intel_dsi_cmd.c: In function ‘dsi_vc_send_long’:
drivers/gpu/drm/i915/intel_dsi_cmd.c:181:2: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 7 has type ‘size_t’ [-Wformat=]

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: initialize DSI output on VLV
Jani Nikula [Tue, 27 Aug 2013 12:12:26 +0000 (15:12 +0300)]
drm/i915: initialize DSI output on VLV

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Parse the MIPI related VBT Block and store relevant info
Shobhit Kumar [Tue, 27 Aug 2013 12:12:25 +0000 (15:12 +0300)]
drm/i915: Parse the MIPI related VBT Block and store relevant info

Initial parsing of the VBT MIPI block. For now, just store the panel id
if found.

Note: Again there seems to be no documentation for this piece of lore.
The doc situation for byt+ is just a bad joke :(

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Band Gap WA
Shobhit Kumar [Tue, 27 Aug 2013 12:12:24 +0000 (15:12 +0300)]
drm/i915: Band Gap WA

Note: No one seems to have docs for this, so this patch here is just
unreviewed black magic :(

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: ymohanma <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Add note about the doc situation.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: don't enable DPLL for DSI
Jani Nikula [Tue, 27 Aug 2013 12:12:23 +0000 (15:12 +0300)]
drm/i915: don't enable DPLL for DSI

DPLL is not needed for DSI

v2: Rebase due to added DSI PLL assertion patch.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: fix PLL assertions for DSI PLL
Jani Nikula [Tue, 27 Aug 2013 12:12:22 +0000 (15:12 +0300)]
drm/i915: fix PLL assertions for DSI PLL

For DSI, we need to be asserting DSI PLL, not DPLL.

This is a somewhat stopgap implementation. It's slightly ugly to have to
pass the dsi parameter to intel_enable_pipe().

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add VLV DSI PLL Calculations
ymohanma [Tue, 27 Aug 2013 20:40:56 +0000 (23:40 +0300)]
drm/i915: add VLV DSI PLL Calculations

v2:
 - Grab dpio_lock mutex in vlv_enable_dsi_pll().
 - Add and call vlv_disable_dsi_pll().

v3: Mostly based on Ville's review comments.
 - Only pipe A has DSI PLL lock bit.
 - Add more of CCK REG bit definitions for DSI PLL.
 - Make tables static.
 - Move clock gating out of the clock calculation functions.
 - DSI PLL LDO power gating.
 - Put alternative MNP from table calc behind #ifdef.

v4: s/CKK/CLK/ in the CCK REG bit definitions (Ville).

Signed-off-by: ymohanma <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add basic MIPI DSI output support
Jani Nikula [Tue, 27 Aug 2013 12:12:20 +0000 (15:12 +0300)]
drm/i915: add basic MIPI DSI output support

This does not include any panel specific sub-encoders yet.

v2: Fix fixed mode handling (Daniel)

v3: Mostly based on Ville's review comments.
 - Fix MIPI_HS_TX_TIMEOUT.
 - DPI_ENABLE only for video mode.
 - Drop ULPS usage for now, use DEVICE_READY only.
 - Set MIPI_INIT_COUNT based on txclkesc.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add MIPI DSI command sending routines
Jani Nikula [Tue, 27 Aug 2013 12:12:19 +0000 (15:12 +0300)]
drm/i915: add MIPI DSI command sending routines

v2: Rebase due to register bit definition change.

v3: Mostly based on Ville's review comments.
 - Use size_t for length all around.
 - Reuse dsi_vc_send_short in dsi_vc_send_long.
 - Remove stale/incorrect comments.
 - Reverse special packet sent interrupt check.
 - Use DSI controller regs for reading, not adapter.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add structs for MIPI DSI output
Jani Nikula [Tue, 27 Aug 2013 12:12:18 +0000 (15:12 +0300)]
drm/i915: add structs for MIPI DSI output

The sub-encoder model is copied from DVO.

v2: Add attached_connector to struct intel_dsi.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add MIPI DSI output type and subtypes
Jani Nikula [Tue, 27 Aug 2013 12:12:17 +0000 (15:12 +0300)]
drm/i915: add MIPI DSI output type and subtypes

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add MIPI DSI register definitions
Jani Nikula [Tue, 27 Aug 2013 12:12:16 +0000 (15:12 +0300)]
drm/i915: add MIPI DSI register definitions

Add definitions for VLV MIPI DSI registers.

v2: Small fixes per Ville's review comments.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add VLV pipeconf bit definition for DSI PLL lock
Jani Nikula [Tue, 27 Aug 2013 12:12:15 +0000 (15:12 +0300)]
drm/i915: add VLV pipeconf bit definition for DSI PLL lock

v2: Add comment this is pipe A only (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: add more VLV IOSF sideband ports accessors
Jani Nikula [Tue, 27 Aug 2013 12:12:14 +0000 (15:12 +0300)]
drm/i915: add more VLV IOSF sideband ports accessors

For GPIO NC, CCK, CCU, and GPS CORE.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm: add MIPI DSI encoder and connector types
Shobhit Kumar [Tue, 27 Aug 2013 12:12:13 +0000 (15:12 +0300)]
drm: add MIPI DSI encoder and connector types

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Always prefer CPU relocations with LLC
Chris Wilson [Mon, 26 Aug 2013 22:51:00 +0000 (19:51 -0300)]
drm/i915: Always prefer CPU relocations with LLC

A follow-on to the update of the LLC coherency logic is that we can rely
on the LLC being coherent with the CS for rewriting batchbuffers
irrespective of their cache domain. (This should have no effect
currently as all the batch buffers are expected to be I915_CACHE_LLC and
so using the cpu relocation path anyway.)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: More vma fixups around unbind/destroy
Daniel Vetter [Mon, 26 Aug 2013 09:23:47 +0000 (11:23 +0200)]
drm/i915: More vma fixups around unbind/destroy

The important bugfix here is that we must not unlink the vma when
we keep it around as a placeholder for the execbuf code. Since then we
won't find it again when execbuf gets interrupt and restarted and
create a 2nd vma. And since the code as-is isn't fit yet to deal with
more than one vma, hilarity ensues.

Specifically the dma map/unmap of the sg table isn't adjusted for
multiple vmas yet and will blow up like this:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffa008fb37>] i915_gem_gtt_finish_object+0x73/0xc8 [i915]
PGD 56bb5067 PUD ad3dd067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in: tcp_lp ppdev parport_pc lp parport ipv6 dm_mod dcdbas snd_hda_codec_hdmi pcspkr snd_hda_codec_realtek serio_raw i2c_i801 iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_codec lpc_ich snd_hwdep mfd_core snd_pcm snd_page_alloc snd_timer snd soundcore acpi_cpufreq i915 video button drm_kms_helper drm mperf freq_table
CPU: 1 PID: 16650 Comm: fbo-maxsize Not tainted 3.11.0-rc4_nightlytop_d93f59_debug_20130814_+ #6957
Hardware name: Dell Inc. OptiPlex 9010/03JR84, BIOS A01 05/04/2012
task: ffff8800563b3f00 ti: ffff88004bdf4000 task.ti: ffff88004bdf4000
RIP: 0010:[<ffffffffa008fb37>]  [<ffffffffa008fb37>] i915_gem_gtt_finish_object+0x73/0xc8 [i915]
RSP: 0018:ffff88004bdf5958  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8801135e0000 RCX: ffff8800ad3bf8e0
RDX: ffff8800ad3bf8e0 RSI: 0000000000000000 RDI: ffff8801007ee780
RBP: ffff88004bdf5978 R08: ffff8800ad3bf8e0 R09: 0000000000000000
R10: ffffffff86ca1810 R11: ffff880036a17101 R12: ffff8801007ee780
R13: 0000000000018001 R14: ffff880118c4e000 R15: ffff8801007ee780
FS:  00007f401a0ce740(0000) GS:ffff88011e280000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000005635c000 CR4: 00000000001407e0
Stack:
 ffff8801007ee780 ffff88005c253180 0000000000018000 ffff8801135e0000
 ffff88004bdf59a8 ffffffffa0088e55 0000000000000011 ffff8801007eec00
 0000000000018000 ffff880036a17101 ffff88004bdf5a08 ffffffffa0089026
Call Trace:
 [<ffffffffa0088e55>] i915_vma_unbind+0xdf/0x1ab [i915]
 [<ffffffffa0089026>] __i915_gem_shrink+0x105/0x177 [i915]
 [<ffffffffa0089452>] i915_gem_object_get_pages_gtt+0x108/0x309 [i915]
 [<ffffffffa0085ba9>] i915_gem_object_get_pages+0x61/0x90 [i915]
 [<ffffffffa008f22b>] ? gen6_ppgtt_insert_entries+0x103/0x125 [i915]
 [<ffffffffa008a113>] i915_gem_object_pin+0x1fa/0x5df [i915]
 [<ffffffffa008cdfe>] i915_gem_execbuffer_reserve_object.isra.6+0x8d/0x1bc [i915]
 [<ffffffffa008d156>] i915_gem_execbuffer_reserve+0x229/0x367 [i915]
 [<ffffffffa008dbf6>] i915_gem_do_execbuffer.isra.12+0x4dc/0xf3a [i915]
 [<ffffffff810fc823>] ? might_fault+0x40/0x90
 [<ffffffffa008eb89>] i915_gem_execbuffer2+0x187/0x222 [i915]
 [<ffffffffa000971c>] drm_ioctl+0x308/0x442 [drm]
 [<ffffffffa008ea02>] ? i915_gem_execbuffer+0x3ae/0x3ae [i915]
 [<ffffffff817db156>] ? __do_page_fault+0x3dd/0x481
 [<ffffffff8112fdba>] vfs_ioctl+0x26/0x39
 [<ffffffff811306a2>] do_vfs_ioctl+0x40e/0x451
 [<ffffffff817deda7>] ? sysret_check+0x1b/0x56
 [<ffffffff8113073c>] SyS_ioctl+0x57/0x87
 [<ffffffff8135bbfe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff817ded82>] system_call_fastpath+0x16/0x1b
Code: 48 c7 c6 84 30 0e a0 31 c0 e8 d0 e9 f7 ff bf c6 a7 00 00 e8 07 af 2c e1 41 f6 84 24 03 01 00 00 10 75 44 49 8b 84 24 08 01 00 00 <8b> 50 08 48 8b 30 49 8b 86 b0 04 00 00 48 89 c7 48 81 c7 98 00
RIP  [<ffffffffa008fb37>] i915_gem_gtt_finish_object+0x73/0xc8 [i915]
 RSP <ffff88004bdf5958>
CR2: 0000000000000008

As a consequence we need to change the "only one vma for now" check in
vma_unbind - since vma_destroy isn't always called the obj->vma_list
might not be empty. Instead check that the vma list is singular at the
beginning of vma_unbind. This is also more symmetric with bind_to_vm.

This fixes the igt/gem_evict_everything|alignment testcases.

v2:
- Add a paranoid WARN to mark_free in the eviction code to make sure
  we never try to evict a vma used by the execbuf code right now.
- Move the check for a temporary execbuf vma into vma_destroy -
  otherwise the failure path cleanup in bind_to_vm will blow up.

Our first attempting at fixing this was

commit 1be81a2f2cfd8789a627401d470423358fba2d76
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Aug 20 12:56:40 2013 +0100

    drm/i915: Don't destroy the vma placeholder during execbuffer reservation

Squash with this when merging!

v3: Improvements suggested in Chris' review:
- Move the WARN_ON in vma_destroy that checks for vmas with an drm_mm
  allocation before the early return.
- Bail out if we hit the WARN in mark_free to hopefully make the
  kernel survive for long enough to capture it.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68298
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68171
Tested-by: lu hua <huax.lu@intel.com> (v2)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Don't destroy the vma placeholder during execbuffer reservation
Chris Wilson [Tue, 20 Aug 2013 11:56:40 +0000 (12:56 +0100)]
drm/i915: Don't destroy the vma placeholder during execbuffer reservation

The execbuffer handle and exec_link were moved from the object into the
vma. As the vma may be unbound and destroyed whilst attempting to
reserve the execbuffer objects (either through a forced unbind to fix up
a misalignment or through an evict-everything call) we need to prevent
the free of the i915_vma itself. Otherwise not only is the list of
objects to reserve corrupt, but we continue to reference stale vma
entries.

Fixes kernel crash with i-g-t/gem_evict_everything

This regression has been introduced in

commit 04038a515d6eda6dd0857c0ade0b3950d372f4c0
Author:     Ben Widawsky <ben@bwidawsk.net>
AuthorDate: Wed Aug 14 11:38:36 2013 +0200

    drm/i915: Convert execbuf code to use vmas

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
References: http://www.spinics.net/lists/intel-gfx/msg32038.html
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68298
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: inline vma_create into lookup_or_create_vma
Daniel Vetter [Wed, 14 Aug 2013 12:14:04 +0000 (14:14 +0200)]
drm/i915: inline vma_create into lookup_or_create_vma

In the execbuf code we don't clean up any vmas which ended up not
getting bound for code simplicity. To make sure that we don't end up
creating multiple vma for the same vm kill the somewhat dangerous
vma_create function and inline it into lookup_or_create.

This is just a safety measure to prevent surprises in the future.

Also update the somewhat confused comment in the execbuf code and
clarify what kind of magic is going on with a new one.

v2: Keep the function separate as requested by Chris. But give it a __
prefix for paranoia and move it tighter together with the other vma
stuff.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Convert execbuf code to use vmas
Ben Widawsky [Wed, 14 Aug 2013 09:38:36 +0000 (11:38 +0200)]
drm/i915: Convert execbuf code to use vmas

In order to transition more of our code over to using a VMA instead of
an <OBJ, VM> pair - we must have the vma accessible at execbuf time. Up
until now, we've only had a VMA when actually binding an object.

The previous patch helped handle the distinction on bound vs. unbound.
This patch will help us catch leaks, and other issues before we actually
shuffle a bunch of stuff around.

This attempts to convert all the execbuf code to speak in vmas. Since
the execbuf code is very self contained it was a nice isolated
conversion.

The meat of the code is about turning eb_objects into eb_vma, and then
wiring up the rest of the code to use vmas instead of obj, vm pairs.

Unfortunately, to do this, we must move the exec_list link from the obj
structure. This list is reused in the eviction code, so we must also
modify the eviction code to make this work.

WARNING: This patch makes an already hotly profiled path slower. The cost is
unavoidable. In reply to this mail, I will attach the extra data.

v2: Release table lock early, and two a 2 phase vma lookup to avoid
having to use a GFP_ATOMIC. (Chris)

v3: s/obj_exec_list/obj_exec_link/
Updates to address
commit 6d2b888569d366beb4be72cacfde41adee2c25e1
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Aug 7 18:30:54 2013 +0100

    drm/i915: List objects allocated from stolen memory in debugfs

v4: Use obj = vma->obj for neatness in some places (Chris)
need_reloc_mappable() should return false if ppgtt (Chris)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Split out prep patches. Also remove a FIXME comment which is
now taken care of.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: fix i9xx_crtc_clock_get for multiplied pixels
Daniel Vetter [Tue, 3 Sep 2013 18:40:37 +0000 (20:40 +0200)]
drm/i915: fix i9xx_crtc_clock_get for multiplied pixels

The dpll actually runs at the port clock so we don't need
to multiply it again with the pixel multiplier to get the
adjusted_mode.clock. This is in contrast to the ironlake
pixel clock readout code which uses the fdi dotclock: That
one does _not_ run with multiplied pixels.

This issue goes back to the original clock readout code added
in

commit f1f644dc66cbaf5a4c7dcde683361536b41885b9
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Thu Jun 27 00:39:25 2013 +0300

    drm/i915: get mode clock when reading the pipe config v9

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: handle sdvo input pixel multiplier correctly again
Daniel Vetter [Tue, 3 Sep 2013 18:40:36 +0000 (20:40 +0200)]
drm/i915: handle sdvo input pixel multiplier correctly again

The sdvo input timing needs to be the actual mode, the sdvo
encoder automatically adjusts for the need of pixel doubling or
quadrupling. This was lost in pipe config conversion of the
pixel multiplier in

commit 6cc5f341b5830541a1b6945435ca90c69b1b8b21
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Mar 27 00:44:53 2013 +0100

    drm/i915: add pipe_config->pixel_multiplier

While at it ditch the intel_ prefix from the crtc in
intel_sdvo_mode_set.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: fix hpd work vs. flush_work in the pageflip code deadlock
Daniel Vetter [Mon, 2 Sep 2013 14:22:25 +0000 (16:22 +0200)]
drm/i915: fix hpd work vs. flush_work in the pageflip code deadlock

Historically we've run our own driver hotplug handling in our own
work-queue, which then launched the drm core hotplug handling in the
system workqueue. This is important since we flush our own driver
workqueue in the pageflip code while hodling modeset locks, and only
the drm hotplug code grabbed these locks. But with

commit 69787f7da6b2adc4054357a661aaa1701a9ca76f
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Oct 23 18:23:34 2012 +0000

    drm: run the hpd irq event code directly

this was changed and now we could deadlock in our flip handler if
there's a hotplug work blocking the progress of the crucial unpin
works. So this broke the careful deadlock avoidance implemented in

commit b4a98e57fc27854b5938fc8b08b68e5e68b91e1f
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Nov 1 09:26:26 2012 +0000

    drm/i915: Flush outstanding unpin tasks before pageflipping

Since the rule thus far has been that work items on our own workqueue
may never grab modeset locks simply restore that rule again.

v2: Add a comment to the declaration of dev_priv->wq to warn readers
about the tricky implications of using it. Suggested by Chris Wilson.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Stuart Abercrombie <sabercrombie@chromium.org>
Reported-by: Stuart Abercrombie <sabercrombie@chromium.org>
References: http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/26239
Cc: stable@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Squash in a comment at the place where we schedule the work.
Requested after-the-fact by Chris on irc since the hpd work isn't the
only place we botch this.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: fix up the relocate_entry refactoring
Daniel Vetter [Mon, 2 Sep 2013 18:56:23 +0000 (20:56 +0200)]
drm/i915: fix up the relocate_entry refactoring

Somehow we've lost the error handling in the patch split-up between
the internal and external patch. This regression has been introduced
in

commit 5032d871f7d300aee10c309ea004eb4f851553fe
Author: Rafael Barbalho <rafael.barbalho@intel.com>
Date:   Wed Aug 21 17:10:51 2013 +0100

    drm/i915: Cleaning up the relocate entry function

This bug is exercised by igt/gem_reloc_vs_gpu/interruptible.

Cc: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Fix pipe config warnings when dealing with LVDS fixed mode
Ville Syrjälä [Mon, 2 Sep 2013 18:13:39 +0000 (21:13 +0300)]
drm/i915: Fix pipe config warnings when dealing with LVDS fixed mode

intel_fixed_panel_mode() overwrote the adjusted_mode with the fixed mode
only partially. Notably it forgot to copy over the sync flags. The LVDS code however programmed the hardware with the sync flags from fixed mode, and then later the pipe config comparison obviously failed as we
filled out the adjusted_mode in get_config from the real registers.

Just call drm_mode_copy() in intel_fixed_panel_mode() to copy over the
whole thing, and then just use adjusted_mode in the LVDS code to figure
out which sync settings the hardware needs.

Also constify the fixed_mode argument to intel_fixed_panel_mode().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Don't call sg_free_table() if sg_alloc_table() fails
Damien Lespiau [Fri, 30 Aug 2013 14:39:26 +0000 (15:39 +0100)]
drm/i915: Don't call sg_free_table() if sg_alloc_table() fails

One needs to call __sg_free_table() if __sg_alloc_table() fails, but
sg_alloc_table() does that for us already.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewd-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agoi915: Update VGA arbiter support for newer devices
Alex Williamson [Wed, 28 Aug 2013 15:39:08 +0000 (09:39 -0600)]
i915: Update VGA arbiter support for newer devices

This is intended to add VGA arbiter support for Intel HD graphics on
Core processors.  The old GMCH registers no longer exist, so even
though it appears that i915 participates in VGA arbitration, it doesn't
work.  On Intel HD graphics we already attempt to disable VGA regions
of the device.  This makes registering as a VGA client unnecessary since
we don't intend to operate differently depending on how many VGA devices
are present.  We can disable VGA memory regions by clearing the memory
enable bit in the VGA MSR.  That only leaves VGA IO, which we update
the VGA arbiter to know that we don't participate in VGA memory
arbitration.  We also add a hook on unload to re-enable memory and
reinstate VGA memory arbitration.

v3: Use explicit LEGACY_IO | LEGACY_MEM when restoring rather than
    LEGACY_MASK, per Ville's comments.

v2: I915_READ/WRITE accessors don't work in i915_disable_vga, use inb/outb
    directly.  Also, on the driver unbind VGA enable path, acquire legacy
    IO to re-enable VGA memory.  Correct comment.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add patch changelog. Also squash in a fixup to have a dummy
static inline for vga_set_legacy_decoding for CONFIG_VGA_ARB=n as
reported by the 0-day kernel build bot.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
fixup 2

11 years agovgaarb: Fix VGA decodes changes
Alex Williamson [Thu, 15 Aug 2013 22:37:59 +0000 (16:37 -0600)]
vgaarb: Fix VGA decodes changes

When VGA decodes change we need to do a bit more evaluation of exactly what
has changed.  We don't necessarily give up all the old owns resources and
we need to account for resources with locks.  The new algorithm is: If
something is added, update decodes.  If legacy resources were added and
none were there before, we have a new participant.  If something is
removed, update decodes.  If we previously owned it, we no longer own it.
If it was previously locked, invalidate all locks and release it.  If
legacy resources were removed and none are left, remove the participant
from VGA arbitration.

Previously we updated decodes, released ownership of everything that was
previously decoded, ignored all locks, and went off looking for another
device to transfer VGA to.  In a test case where Intel IGD removes only
legacy VGA memory decoding, this left the arbiter switching to discrete
graphics without actually disabling legacy VGA IO from the IGD.  As a
bonus, we bumped up the count of VGA arbitration participants for no
good reason.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Kill now unused variables, reported by the 0-day kernel
builtbot.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agovgaarb: Don't disable resources that are not owned
Alex Williamson [Thu, 15 Aug 2013 22:37:53 +0000 (16:37 -0600)]
vgaarb: Don't disable resources that are not owned

If a device does not own a resource then we don't need to disable it.
This resolves the case where an Intel IGD device can be configured to
disable decode of VGA memory but we still need the arbiter to handle
VGA I/O port routing.  When the IGD device is in conflict, only
PCI_COMMAND_IO should be disabled since VGA memory does not require
arbitration on this device.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Pin pages whilst mapping the dma-buf
Chris Wilson [Mon, 26 Aug 2013 22:50:55 +0000 (19:50 -0300)]
drm/i915: Pin pages whilst mapping the dma-buf

As we attempt to kmalloc after calling get_pages, there is a possibility
that the shrinker may reap the pages we just acquired. To prevent this
we need to increment the pages_pin_count early, so rearrange the code
and error paths to make it so.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: enable trickle feed on Haswell
Paulo Zanoni [Fri, 23 Aug 2013 22:51:28 +0000 (19:51 -0300)]
drm/i915: enable trickle feed on Haswell

We shouldn't disable the trickle feed bits on Haswell. Our
documentation explicitly says the trickle feed bits of PRI_CTL and
CUR_CTL should not be programmed to 1, and the hardware engineer also
asked us to not program the SPR_CTL field to 1. Leaving the bits as 1
could cause underflows.

Reported-by: Arthur Runyan <arthur.j.runyan@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agox86: add early quirk for reserving Intel graphics stolen memory v5
Jesse Barnes [Fri, 26 Jul 2013 20:32:52 +0000 (13:32 -0700)]
x86: add early quirk for reserving Intel graphics stolen memory v5

Systems with Intel graphics controllers set aside memory exclusively for
gfx driver use.  This memory is not always marked in the E820 as
reserved or as RAM, and so is subject to overlap from E820 manipulation
later in the boot process.  On some systems, MMIO space is allocated on
top, despite the efforts of the "RAM buffer" approach, which simply
rounds memory boundaries up to 64M to try to catch space that may decode
as RAM and so is not suitable for MMIO.

v2: use read_pci_config for 32 bit reads instead of adding a new one
    (Chris)
    add gen6 stolen size function (Chris)
v3: use a function pointer (Chris)
    drop gen2 bits (Daniel)
v4: call e820_sanitize_map after adding the region
v5: fixup comments (Peter)
    simplify loop (Chris)

Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66726
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66844
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: split PCI IDs out into i915_drm.h v4
Jesse Barnes [Fri, 26 Jul 2013 20:32:51 +0000 (13:32 -0700)]
drm/i915: split PCI IDs out into i915_drm.h v4

For use by userspace (at some point in the future) and other kernel code.

v2: move PCI IDs to uabi (Chris)
    move PCI IDs to drm/ (Dave)
v3: fixup Quanta detection - needs to come first (Daniel)
v4: fix up PCI match structure init for easier use by userspace (Chris)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agoi915_gem: Convert kmem_cache_alloc(...GFP_ZERO) to kmem_cache_zalloc
Joe Perches [Thu, 29 Aug 2013 20:11:07 +0000 (13:11 -0700)]
i915_gem: Convert kmem_cache_alloc(...GFP_ZERO) to kmem_cache_zalloc

The helper exists, might as well use it instead of __GFP_ZERO.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Use RCS flips on Ivybridge+
Chris Wilson [Mon, 26 Aug 2013 19:58:12 +0000 (20:58 +0100)]
drm/i915: Use RCS flips on Ivybridge+

RCS flips do work on Iybridge+ so long as we can unmask the messages
through DERRMR. However, there are quite a few workarounds mentioned
regarding unmasking more than one event or triggering more than one
message through DERRMR. Those workarounds in principle prevent us from
performing pipelined flips (and asynchronous flips across multiple
planes) and equally apply to the "known good" BCS ring. Given that it
already appears to work, and also appears to work with unmasking all 3
planes at once (and queuing flips across multiple planes), be brave.

Bugzlla: https://bugs.freedesktop.org/show_bug.cgi?id=67600
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Lightly-tested-by: Stephane Marchesin <marchesin@icps.u-strasbg.fr>
Cc: Stephane Marchesin <marchesin@icps.u-strasbg.fr>
Cc: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Embed the ring->private within the struct intel_ring_buffer
Chris Wilson [Mon, 26 Aug 2013 19:58:11 +0000 (20:58 +0100)]
drm/i915: Embed the ring->private within the struct intel_ring_buffer

We now have more devices using ring->private than not, and they all want
the same structure. Worse, I would like to use a scratch page from
outside of intel_ringbuffer.c and so for convenience would like to reuse
ring->private. Embed the object into the struct intel_ringbuffer so that
we can keep the code clean.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: fix lvds/dp panel fitter setting
Imre Deak [Tue, 27 Aug 2013 09:24:09 +0000 (12:24 +0300)]
drm/i915: fix lvds/dp panel fitter setting

If need to enable the panel fitter, the crtc timings have to be
programmed according to the panel's native (fixed) mode. This isn't the
case atm, since after the encoder changes adjusted_mode to fixed
mode the crtc_* timing fields of adjusted_mode will stay at their original
non-native values that the user passed in. This results in a corrupted
output.

One exception is when we have a second pass of computing encoder configs
due to bandwidth limitation, since then we'll set adjusted_mode.crtc_*
fields to the fixed mode values set in the first pass; so in this case
things will work out.

Fix this by updating the adjusted_mode.crtc_* fields when we set the
fixed panel mode.

This regression has been introduced in

commit 135c81b8c3c9a70d7b55758c9c2a247a4abb7b64
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sun Jul 21 21:37:09 2013 +0200

    drm/i915: clean up crtc timings computation

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: tune down hangcheck noise
Daniel Vetter [Wed, 28 Aug 2013 08:57:59 +0000 (10:57 +0200)]
drm/i915: tune down hangcheck noise

We already have a big splashing *ERROR* for all the relevant cases of
hangs, so this one here is redudant. And it results in an unclean
dmesg when running with simulated hangs. Regression has been
introduced in

commit 05407ff889ceebe383aa5907219f86582ef96b72
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Thu May 30 09:04:29 2013 +0300

    drm/i915: detect hang using per ring hangcheck_score

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68641
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Report requested frequency alongside current frequency in debugfs
Chris Wilson [Mon, 26 Aug 2013 22:51:01 +0000 (19:51 -0300)]
drm/i915: Report requested frequency alongside current frequency in debugfs

It can be useful to compare at times the current vs requested frequency
of the GPU, so provide the contents of RPNSWREQ alonside CAGF.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Apply the force-detect VGA w/a to Valleyview
Chris Wilson [Mon, 26 Aug 2013 22:51:06 +0000 (19:51 -0300)]
drm/i915: Apply the force-detect VGA w/a to Valleyview

It appears that Valleyview shares its VGA encoder with more recent
siblings and requires the same forced detection cycle after a hardware
reset before we can rely on hotplugging.

Reported-and-tested-by: kobeqin <kobe.qin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67733
Tested-by: kobeqin <kobe.qin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Check for gen >= 5 insted, acked by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Adjust available RPS information through sysfs for vlv
Chris Wilson [Mon, 26 Aug 2013 15:18:54 +0000 (16:18 +0100)]
drm/i915: Adjust available RPS information through sysfs for vlv

Valleyview has its own render power state implementation with different
capability knobs - it has no RP0,RP1,RPn but rather RPe.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67734
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: kobe.qin@intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: sanitize forcewake registers on reset
Mika Kuoppala [Fri, 23 Aug 2013 13:52:30 +0000 (16:52 +0300)]
drm/i915: sanitize forcewake registers on reset

In reset we try to restore the forcewake state to
pre reset state, using forcewake_count. The reset
doesn't seem to clear the forcewake bits so we
get warn on forcewake ack register not clearing.

Use same mechanism as intel_uncore_sanitize() does
when loading driver to reset the forcewake bits, right
after the chip has been reset.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/i915: Don't mask EI UP interrupt on IVB|SNB
Mika Kuoppala [Thu, 22 Aug 2013 18:09:00 +0000 (21:09 +0300)]
drm/i915: Don't mask EI UP interrupt on IVB|SNB

Submitting a batchbuffer which simulates a gpu
hang by doing MI_BATCH_BUFFER_START into itself,
to test hangcheck, started to hard hang the whole box
(IVB). Bisecting lead to this commit:

commit 664b422c2966cd39b8f67e8d53a566ea8c877cd6
Author: Vinit Azad <vinit.azad@intel.com>
Date:   Wed Aug 14 13:34:33 2013 -0700

    drm/i915: Only unmask required PM interrupts

Experimenting with the mask register showed that
unmasking EI UP will prevent the hard hang in IVB and SNB.
HSW doesn't hang with EI UP masked.

Considering we are just disabling interrupts that aren't even
delivered to driver, this change is more likely to paper over some
weirdness in gpu's internal state machine. But until better
explanation can be found, let's trade little bit of power
for stability on these architectures.

v2: - Unmask EI_EXPIRED directly in I915_WRITE (Vinit)
v3: - Only unmask on SNB and IVB

Cc: Vinit Azad <vinit.azad@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Acked-by: Vinit Azad <vinit.azad@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
11 years agodrm/radeon: support render nodes
Christian König [Sun, 25 Aug 2013 16:29:03 +0000 (18:29 +0200)]
drm/radeon: support render nodes

Enable support for drm render nodes for radeon by flagging the ioctls that
are safe and just needed for rendering.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/nouveau: Support render nodes
Martin Peres [Sun, 25 Aug 2013 16:29:02 +0000 (18:29 +0200)]
drm/nouveau: Support render nodes

Enable support for drm render nodes for nouveau by flagging the ioctls that
are safe and just needed for rendering.

Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Martin Peres <martin.peres@labri.fr>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/i915: Support render nodes
Kristian Høgsberg [Sun, 25 Aug 2013 16:29:01 +0000 (18:29 +0200)]
drm/i915: Support render nodes

Enable support for drm render nodes for i915 by flagging the ioctls that
are safe and just needed for rendering.

v2: mark reg_read, set_caching and get_caching (ickle, danvet)

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm: fix DRM_IOCTL_MODE_GETFB handle-leak
David Herrmann [Mon, 26 Aug 2013 13:16:49 +0000 (15:16 +0200)]
drm: fix DRM_IOCTL_MODE_GETFB handle-leak

DRM_IOCTL_MODE_GETFB is used to retrieve information about a given
framebuffer ID. It is a read-only helper and was thus declassified for
unprivileged access in:

  commit a14b1b42477c5ef089fcda88cbaae50d979eb8f9
  Author: Mandeep Singh Baines <mandeep.baines@gmail.com>
  Date:   Fri Jan 20 12:11:16 2012 -0800

      drm: remove master fd restriction on mode setting getters

However, alongside width, height and stride information,
DRM_IOCTL_MODE_GETFB also passes back a handle to the underlying buffer of
the framebuffer. This handle allows users to mmap() it and read or write
into it. Obviously, this should be restricted to DRM-Master.

With the current setup, *any* process with access to /dev/dri/card0 (which
means any process with access to hardware-accelerated rendering) can
access the current screen framebuffer and modify it ad libitum.

For backwards-compatibility reasons we want to keep the
DRM_IOCTL_MODE_GETFB call unprivileged. Besides, it provides quite useful
information regarding screen setup. So we simply test whether the caller
is the current DRM-Master and if not, we return 0 as handle, which is
always invalid. A following DRM_IOCTL_GEM_CLOSE on this handle will fail
with EINVAL, but we accept this. Users shouldn't test for errors during
GEM_CLOSE, anyway. And it is still better as a failing MODE_GETFB call.

v2: add capable(CAP_SYS_ADMIN) check for compatibility with i-g-t

Cc: <stable@vger.kernel.org>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/msm: convert to drm_bridge
Rob Clark [Fri, 30 Aug 2013 17:02:15 +0000 (13:02 -0400)]
drm/msm: convert to drm_bridge

Drop the msm_connector base class, and special calls to base class
methods from the encoder, and use instead drm_bridge.  This allows for a
cleaner division between the hdmi (and in future dsi) blocks, from the
mdp block.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm: Add drm_bridge
Sean Paul [Wed, 14 Aug 2013 20:47:37 +0000 (16:47 -0400)]
drm: Add drm_bridge

This patch adds the notion of a drm_bridge. A bridge is a chained
device which hangs off an encoder. The drm driver using the bridge
should provide the association between encoder and bridge. Once a
bridge is associated with an encoder, it will participate in mode
set, and dpms (via the enable/disable hooks).

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/nouveau: fix up 32-bit ioctls and device wake up.
Dave Airlie [Sun, 1 Sep 2013 23:52:55 +0000 (09:52 +1000)]
drm/nouveau: fix up 32-bit ioctls and device wake up.

Noticed by kbuild test robot.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agodrm/tegra: fix up page flip flags.
Dave Airlie [Sun, 1 Sep 2013 23:47:56 +0000 (09:47 +1000)]
drm/tegra: fix up page flip flags.

This was one level away from where I'd grepped.

Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agoMerge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Sun, 1 Sep 2013 23:31:40 +0000 (09:31 +1000)]
Merge branch 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux into drm-next

Alex writes:
This is the radeon drm-next request.  Big changes include:
- support for dpm on CIK parts
- support for ASPM on CIK parts
- support for berlin GPUs
- major ring handling cleanup
- remove the old 3D blit code for bo moves in favor of CP DMA or sDMA
- lots of bug fixes

[airlied: fix up a bunch of conflicts from drm_order removal]

* 'drm-next-3.12' of git://people.freedesktop.org/~agd5f/linux: (898 commits)
  drm/radeon/dpm: make sure dc performance level limits are valid (CI)
  drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
  drm/radeon: gcc fixes for extended dpm tables
  drm/radeon: gcc fixes for kb/kv dpm
  drm/radeon: gcc fixes for ci dpm
  drm/radeon: gcc fixes for si dpm
  drm/radeon: gcc fixes for ni dpm
  drm/radeon: gcc fixes for trinity dpm
  drm/radeon: gcc fixes for sumo dpm
  drm/radeonn: gcc fixes for rv7xx/eg/btc dpm
  drm/radeon: gcc fixes for rv6xx dpm
  drm/radeon: gcc fixes for radeon_atombios.c
  drm/radeon: enable UVD interrupts on CIK
  drm/radeon: fix init ordering for r600+
  drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
  drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init
  drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume
  radeon kms: fix uninitialised hotplug work usage in r100_irq_process()
  drm/radeon/audio: set up the sads on DCE3.2 asics
  drm/radeon: fix handling of variable sized arrays for router objects
  ...

Conflicts:
drivers/gpu/drm/i915/i915_dma.c
drivers/gpu/drm/i915/i915_gem_dmabuf.c
drivers/gpu/drm/i915/intel_pm.c
drivers/gpu/drm/radeon/cik.c
drivers/gpu/drm/radeon/ni.c
drivers/gpu/drm/radeon/r600.c

11 years agodrm/radeon/dpm: make sure dc performance level limits are valid (CI)
Alex Deucher [Fri, 30 Aug 2013 20:24:33 +0000 (16:24 -0400)]
drm/radeon/dpm: make sure dc performance level limits are valid (CI)

Check to make sure the dc limits are valid before using them.
Some systems may not have a dc limits table.  In that case just
use the ac limits.  This fixes hangs on systems when the power
state is changed when on battery (dc) due to invalid performance
state parameters.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=68708

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)
Alex Deucher [Fri, 30 Aug 2013 20:18:35 +0000 (16:18 -0400)]
drm/radeon/dpm: make sure dc performance level limits are valid (BTC-SI) (v2)

Check to make sure the dc limits are valid before using them.
Some systems may not have a dc limits table.  In that case just
use the ac limits.  This fixes hangs on systems when the power
state is changed when on battery (dc) due to invalid performance
state parameters.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=68708

v2: fix up limits in dpm_init()

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon: gcc fixes for extended dpm tables
Alex Deucher [Fri, 23 Aug 2013 19:28:42 +0000 (15:28 -0400)]
drm/radeon: gcc fixes for extended dpm tables

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for kb/kv dpm
Alex Deucher [Tue, 20 Aug 2013 23:09:54 +0000 (19:09 -0400)]
drm/radeon: gcc fixes for kb/kv dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for ci dpm
Alex Deucher [Tue, 20 Aug 2013 23:08:22 +0000 (19:08 -0400)]
drm/radeon: gcc fixes for ci dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for si dpm
Alex Deucher [Tue, 20 Aug 2013 23:06:54 +0000 (19:06 -0400)]
drm/radeon: gcc fixes for si dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for ni dpm
Alex Deucher [Tue, 20 Aug 2013 23:04:02 +0000 (19:04 -0400)]
drm/radeon: gcc fixes for ni dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for trinity dpm
Alex Deucher [Tue, 20 Aug 2013 23:02:14 +0000 (19:02 -0400)]
drm/radeon: gcc fixes for trinity dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for sumo dpm
Alex Deucher [Tue, 20 Aug 2013 22:59:41 +0000 (18:59 -0400)]
drm/radeon: gcc fixes for sumo dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeonn: gcc fixes for rv7xx/eg/btc dpm
Alex Deucher [Tue, 20 Aug 2013 22:51:08 +0000 (18:51 -0400)]
drm/radeonn: gcc fixes for rv7xx/eg/btc dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for rv6xx dpm
Alex Deucher [Tue, 20 Aug 2013 22:47:07 +0000 (18:47 -0400)]
drm/radeon: gcc fixes for rv6xx dpm

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: gcc fixes for radeon_atombios.c
Alex Deucher [Tue, 20 Aug 2013 22:40:46 +0000 (18:40 -0400)]
drm/radeon: gcc fixes for radeon_atombios.c

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: enable UVD interrupts on CIK
Christian König [Fri, 30 Aug 2013 09:10:33 +0000 (11:10 +0200)]
drm/radeon: enable UVD interrupts on CIK

The same as on evergreen.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon: fix init ordering for r600+
Alex Deucher [Fri, 30 Aug 2013 12:58:20 +0000 (08:58 -0400)]
drm/radeon: fix init ordering for r600+

The vram scratch buffer needs to be initialized
before the mc is programmed otherwise we program
0 as the GPU address of the default GPU fault
page.  In most cases we put vram at zero anyway and
reserve a page for the legacy vga buffer so in practice
this shouldn't cause any problems, but better to make
it correct.

Was changed in:
6fab3febf6d949b0a12b1e4e73db38e4a177a79e

Reported-by: FrankR Huang <FrankR.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled
Alex Deucher [Wed, 28 Aug 2013 22:46:01 +0000 (18:46 -0400)]
drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabled

Avoid needless uvd reprogramming if uvd powergating is disabled.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
11 years agodrm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init
Alex Deucher [Wed, 28 Aug 2013 22:24:00 +0000 (18:24 -0400)]
drm/radeon: check the return value of uvd_v1_0_start in uvd_v1_0_init

No need to try the ring tests if starting the UVD block failed.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
11 years agodrm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume
Alex Deucher [Wed, 28 Aug 2013 22:12:59 +0000 (18:12 -0400)]
drm/radeon: split out radeon_uvd_resume from uvd_v4_2_resume

For powergating, we just need to re-init the registers, there
is no need to restore the uvd BOs.  This just adds needless
work when powergating uvd for playback while the system is
on.  We only need to restore the uvd BOs on an actual resume
from suspend or when the driver loads.

This fixes multi-stream UVD playback on KB systems.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
11 years agoradeon kms: fix uninitialised hotplug work usage in r100_irq_process()
Sergey Senozhatsky [Thu, 29 Aug 2013 09:29:35 +0000 (12:29 +0300)]
radeon kms: fix uninitialised hotplug work usage in r100_irq_process()

Commit a01c34f72e7cd2624570818f579b5ab464f93de2 (radeon kms: do not
flush uninitialized hotplug work) moved work initialisation phase to
the last step of radeon_irq_kms_init(). Meelis Roos reported that this
causes problems on his machine because drm_irq_install() uses hotplug
work on r100.

hotplug work flushed in radeon_irq_kms_fini(), with two possible cases:
-- radeon_irq_kms_fini() call after successful radeon_irq_kms_init()
-- radeon_irq_kms_fini() call after unsuccessful (or not called at all)
   radeon_irq_kms_init()

The latter one causes flush work on uninitialised hotplug work. Move
work initialisation before drm_irq_install(), but keep existing agreement
to flush hotplug work in radeon_irq_kms_fini() only for `irq.installed'
(successful radeon_irq_kms_init()) case.

WARNING: CPU: 0 PID: 243 at kernel/workqueue.c:1378 __queue_work+0x132/0x16d()
Call Trace:
[<c12319b3>] ? dump_stack+0xa/0x13
[<c1022600>] ? warn_slowpath_common+0x75/0x8a
[<c1031010>] ? __queue_work+0x132/0x16d
[<c1031010>] ? __queue_work+0x132/0x16d
[<c102269e>] ? warn_slowpath_null+0x1b/0x1f
[<c1031010>] ? __queue_work+0x132/0x16d
[<c103107b>] ? queue_work_on+0x30/0x40
[<f8aed3f3>] ? r100_irq_process+0x16d/0x1e6 [radeon]
[<f8ae77cf>] ? radeon_driver_irq_preinstall_kms+0xc2/0xc5 [radeon]
[<f8974d77>] ? drm_irq_install+0xb2/0x1ac [drm]
[<f897604d>] ? drm_vblank_init+0x196/0x1d2 [drm]
[<f8ae78d3>] ? radeon_irq_kms_init+0x33/0xc6 [radeon]
[<f8aef35a>] ? r100_startup+0x1a3/0x1d6 [radeon]
[<f8ad77c8>] ? radeon_ttm_init+0x26e/0x287 [radeon]
[<f8aef752>] ? r100_init+0x2b3/0x309 [radeon]
[<c118082e>] ? vga_client_register+0x39/0x40
[<f8ac535f>] ? radeon_device_init+0x54b/0x61b [radeon]
[<f8ac40fd>] ? cail_mc_write+0x13/0x13 [radeon]
[<f8ac6864>] ? radeon_driver_load_kms+0x82/0xda [radeon]
[<f8978bbd>] ? drm_get_pci_dev+0x136/0x22d [drm]
[<f8ac409b>] ? radeon_pci_probe+0x6c/0x86 [radeon]
[<c112acf6>] ? pci_device_probe+0x4c/0x83
[<c11846c7>] ? driver_probe_device+0x80/0x184
[<c112a848>] ? pci_match_id+0x18/0x36
[<c1184837>] ? __driver_attach+0x44/0x5f
[<c11833f4>] ? bus_for_each_dev+0x50/0x5a
[<c118433e>] ? driver_attach+0x14/0x16
[<c11847f3>] ? __device_attach+0x28/0x28
[<c1184045>] ? bus_add_driver+0xd6/0x1bf
[<c1184c22>] ? driver_register+0x78/0xcf
[<f8ba8000>] ? 0xf8ba7fff
[<c10003bf>] ? do_one_initcall+0x8b/0x121
[<c101e668>] ? change_page_attr_clear+0x2e/0x33
[<f8ba8000>] ? 0xf8ba7fff
[<c101e689>] ? set_memory_ro+0x1c/0x20
[<c104de94>] ? set_page_attributes+0x11/0x12
[<c104f6e1>] ? load_module+0x12fa/0x17e8
[<c107483b>] ? map_vm_area+0x22/0x31
[<c104fc36>] ? SyS_init_module+0x67/0x7d
[<c1234245>] ? sysenter_do_call+0x12/0x26

Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon/audio: set up the sads on DCE3.2 asics
Alex Deucher [Thu, 29 Aug 2013 14:51:04 +0000 (10:51 -0400)]
drm/radeon/audio: set up the sads on DCE3.2 asics

This sets up the short audio descriptors properly on
DCE3.2 asics for hdmi audio.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
11 years agodrm/radeon: fix handling of variable sized arrays for router objects
Alex Deucher [Tue, 27 Aug 2013 16:36:01 +0000 (12:36 -0400)]
drm/radeon: fix handling of variable sized arrays for router objects

The table has the following format:

typedef struct _ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT         //usSrcDstTableOffset pointing to this structure
{
  UCHAR               ucNumberOfSrc;
  USHORT              usSrcObjectID[1];
  UCHAR               ucNumberOfDst;
  USHORT              usDstObjectID[1];
}ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT;

usSrcObjectID[] and usDstObjectID[] are variably sized, so we
can't access them directly.  Use pointers and update the offset
appropriately when accessing the Dst members.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon: fix resume on some rs4xx boards (v2)
Alex Deucher [Mon, 26 Aug 2013 21:52:12 +0000 (17:52 -0400)]
drm/radeon: fix resume on some rs4xx boards (v2)

Setting MC_MISC_CNTL.GART_INDEX_REG_EN causes hangs on
some boards on resume.  The systems seem to work fine
without touching this bit so leave it as is.

v2: read-modify-write the GART_INDEX_REG_EN bit.
I suspect the problem is that we are losing the other
settings in the register.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=52952

Reported-by: Ondrej Zary <linux@rainbow-software.org>
Tested-by: Daniel Tobias <dan.g.tob@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon: add berlin pci ids
Alex Deucher [Mon, 10 Jun 2013 19:51:21 +0000 (15:51 -0400)]
drm/radeon: add berlin pci ids

This adds the pci ids for the berlin GPU core.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
11 years agodrm/radeon: fill in gpu_init for berlin GPU cores
Alex Deucher [Mon, 10 Jun 2013 19:18:26 +0000 (15:18 -0400)]
drm/radeon: fill in gpu_init for berlin GPU cores

This fills in the GPU specific details for berlin
GPU cores so that the driver will work with them.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org