The current comments indicate that this function implements
WaVSRefCountFullforceMissDisable, which is only true for HSW.
The original purpose of the function is to implement
WaVSThreadDispatchOverride (and a bit more). Fix up the comments
to match reality.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaDisableTDLUnitClockGating is only relevant for early steppings of VLV.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaDisableVDSUtnitClockGating was only relevant for early steepings of
VLV.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
These patches fix some issues caused by the DRM panel support from the
previous pull request and add two more panels (for the Toshiba AC100 as
well as the Seaboard and Ventana).
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Merge tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v3.14-rc1 (update)
These patches fix some issues caused by the DRM panel support from the
previous pull request and add two more panels (for the Toshiba AC100 as
well as the Seaboard and Ventana).
* tag 'drm/for-3.14-rc1-20140123' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: Obtain head number from DT
drm/panel: update EDID BLOB in panel_simple_get_modes()
gpu: host1x: Remove unnecessary include
drm/tegra: Use proper data type
drm/tegra: Clarify how panel modes override others
drm/tegra: Fix possible CRTC mask for RGB outputs
drm/i915: Use drm_encoder_crtc_ok()
drm: Move drm_encoder_crtc_ok() to core
drm: provide a helper for the encoder possible_crtcs mask
drm/tegra: Don't check resource with devm_ioremap_resource()
drm/panel: Add support for Chunghwa CLAA101WA01A panel
drm/panel: Add support for Samsung LTN101NT05 panel
these 3 were checking in_interrupt but we have situations where
calling vunmap under this could cause a BUG to be hit in
smp_call_function_many. Use the drm_can_sleep macro instead,
which should stop this path from been taken in this case.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Pile of -fixes all over the place. Lot's of cc: stable.
Only big thing is that we've dropped the preliminary hw support tag for
bdw - it seems to work. Which also means that I'll shovel a few more bdw
patches through -fixes, there's 5 w/a patches from Ken already on
intel-gfx.
* tag 'drm-intel-fixes-2014-01-28' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Fix the offset issue for the stolen GEM objects
drm/i915: Decouple GPU error reporting from ring initialisation
i915: remove pm_qos request on error
Revert "drm/i915: Mask reserved bits in display/sprite address registers"
drm/i915: VLV2 - Fix hotplug detect bits
drm/i915: Allow reading the TIMESTAMP register on Gen8.
drm/i915: Repeat evictions whilst pageflip completions are outstanding
drm/i915: Wait for completion of pending flips when starved of fences
drm/i915: don't disable DP port after a failed link training
drm/i915: don't disable the DP port if the link is lost
drm/i915: Eliminate lots of WARNs when there's no backlight present
drm/i915: g4x/vlv: fix dp aux interrupt mask
drm/i915/ppgtt: Defer request freeing on reset
i915: send D1 opregion notification
drm/i915/bdw: remove preliminary_hw_support flag from BDW
drm/i915: Tune down reset_stat output from ERROR to debug
drm/i915: Make semaphore modparam RO
drm/i915: Fix disabled semaphores
drm/i915: Clarify relocation errnos
drm/i915: Spelling s/auxilliary/auxiliary/
Just one-liner which corrects a select statement for DRM_KMS_FB_HELPER
which looks like it was missed in the initial merge. Based on 3.13.
* 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox: (55 commits)
DRM: armada: fix missing DRM_KMS_FB_HELPER select
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Merge tag 'omapdrm-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next
omapdrm patches for 3.14
* tag 'omapdrm-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
drm/omap: Enable DT support for DMM
drm/omap: fix: change dev_unload order
drm/omap: fix: disable encoder before destroying it
drm/omap: fix: disconnect devices when omapdrm module is removed
drm/omap: fix: Defer probe if an omapdss device requests for it at connect
drm/omap: fix (un)registering irqs inside an irq handler
Conflicts:
drivers/gpu/drm/omapdrm/omap_drv.c
Only two patches this time around. One trivial and one locking fix.
* 'gma500-next' of git://github.com/patjak/drm-gma500:
drm/gma500: Lock struct_mutex around cursor updates
drivers: gpu: Mark function as static in cdv_intel_dp.c
Add a few new debugfs files which allow changing the watermark memory
latency values during runtime. This can be used to determine the if the
original BIOS provided latency values are no good.
v2: Drop superfluous plane name from output
Take modeset locks around the latency value read/write
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Only early VLV steppings needed thist. Should no longer be relevant.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaApplyL3ControlAndL3ChickenMode is only relevant to early HSW
steppings..
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaDisableRCZUnitClockGating was needed with early HSW steppings only.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Someone copy pasted the comment from the SNB code w/o reading it.
We never actually implemented the workaround to disable RCPB unit
clock gating on IVB. It would have been needed for early steppings,
but we don't care about those anymore, so just remove the stale
comment.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaDisableRCCUnitClockGating is only relevant for SNB.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaDisableRCCUnitClockGating is only relevant for SNB.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Can't find any mention of WaDisableVDSUnitClockGating ever being
relevant for SNB. Remove it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
There are cases where we want to know if there is a full, or aliased
PPGTT. Currently, in fact the only distinction we ever need to make is
when we're using full PPGTT.
This patch is simply to promote readability and clarify for the
confusing existing usage where "aliasing" meant aliasing and full.
v2: Remove USES_ALIASING_PPGTT since there are currently no cases where
we need to check if we're using aliasing, but not full PPGTT. (Daniel)
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The 'offset' field of the 'scatterlist' structure was wrongly
programmed with the offset value from the base of stolen area,
whereas this field indicates the offset from where the interested
data starts within the first PAGE pointed to by 'scattterlist'
structure. As a result when a new GEM object allocated from stolen
area is mapped to GTT, it could lead to an overwrite of GTT entries
as the page count calculation will go wrong, refer the function
'sg_page_count'.
v2: Modified the commit message. (Chris)
Signed-off-by: Akash Goel <akash.goel@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71908
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69104
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Commit 92b6f89f6b8f (drm: Add separate Kconfig option for fbdev helpers)
happened in parallel with the inclusion of Armada DRM into mainline,
and so missed this update. Add the necessary select statement to avoid
build errors.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Having to use i915.i915_foo is inconsistent and a bit on the verbose
side. Drop the prefix per Daniel's request, who also says this is not
ABI we need to maintain.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
At least I couldn't find it in the Haswell Bspec any more and we've
tried to test-boot a Haswell machine with num_pipes forced to 0 (i.e.
hit the PCH_NOP path) and the unclaimed register logic complained.
So restrict this dance to just ivb platforms.
v2: Art pointed out that the bits simply moved on hsw+
v3: Buy code terseneness with a notch of sublety as suggested by
Chris.
v4: Frob the right bit, spotted by Art.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Arthur Ranyan <arthur.j.runyan@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Reviewed-by: Art Runyan <arthur.j.runyan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
A lot of the WM functions are only reading from that structure and are
already using const. While converting the code to use dev_priv instead
of dev, I noticed a few places where we can give that hint.
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>
With 20+ module parameters, I think referring to them via a struct
improves clarity over just having a bunch of globals. While at it, move
the parameter initialization and definitions into a new file
i915_params.c to reduce clutter in i915_drv.c.
Apart from the ill-named i915_enable_rc6, i915_enable_fbc and
i915_enable_ppgtt parameters, for which we lose the "i915_" prefix
internally, the module parameters now look the same both on the kernel
command line and in code. For example, "i915.modeset".
The downsides of the change are losing static on a couple of variables
and not having the initialization and module_param_named() right next to
each other. On the other hand, all module parameters are now defined in
one place at i915_params.c. Plus you can do this to find all module
parameter references:
$ git grep "i915\." -- drivers/gpu/drm/i915
v2:
- move the definitions into a new file
- s/i915_params/i915/
- make i915_try_reset i915.reset, for consistency
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaMiSetContext_Hang tells us that a MI_NOOP must follow MI_SET_CONTEXT.
The other thing WaMiSetContext_Hang seems to say is that URB_FENCE isn't
allowed to straddle two cachelines. But we don't issue those from the
kernel so we don't care.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
WaApplyL3ControlAndL3ChickenMode is only listed for IVB and HSW in
W/A database and BSpec.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The w/a database lists both WaPsdDispatchEnable and
WaDisablePSDDualDispatchEnable for VLV. They appear to be the same
thing, so list both names.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Many times in the past we have concluded that the cause of the GPU hang
has been that the hw status page was stale, usually because the GPU and
CPU disagreed over the address of the page. Having stumbled across yet
another issue that seems to be related to the HWSP, it is time to
include that information in the GPU error dump.
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>
Currently we report through our error state only the rings that have
been initialised (as detected by ring->obj). This check is done after
the GPU reset and ring re-initialisation, which means that the software
state may not be the same as when we captured the hardware error and we
may not print out any of the vital information for debugging the hang.
This (and the implied object leak) is a regression from
commit 3d57e5bd12
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Mon Oct 14 10:01:36 2013 -0700
drm/i915: Do a fuller init after reset
Note that we are already starting to get bug reports with incomplete
error states from 3.13, which also hampers debugging userspace driver
issues.
v2: Prevent a NULL dereference on 830gm/845g after a GPU reset where
the scratch obj may be NULL.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=74094
Cc: stable@vger.kernel.org # please don't delay since it's a
vital support/debug feature for the intel gfx stack in general
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add a bit of fluff to make it clear we need this expedited in
stable.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This debugfs interface will allow intel-gpu-tools test case
to verify if screen has been updated properly on cases like PSR.
v2: Accepted all Daniel's suggestions:
* grab modeset lock
* loop over connector and check DPMS on
* return errors
* use _eDP1 suffix for easy future extension
* don't cache crc_supported neither latest crc
* return crc as a full array and read it at once with aux.
* use 0 to turn TEST_SINK off.
* split the drm_helpers definitions in another patch.
v3: Accepted 2 Damien's suggestion: remove h from printf hexa
and return ENODEV when eDP not present instead of EAGAIN.
v4: Accepted 2 Jani' s suggestion: 1 path for unlock and remove
_retry from aux read.
v5: removing last missing useless _retry (by Damien)
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This address will be used to verify panel CRC for test and
validation purposes.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
[danvet: Fix whitespace fail.]
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Having a 4 byte register at 0x321b seems unlikely as that's not
4 byte aligned. Since later platforms have more or less the same FBC
registers with new names, assume that FBC_FENCE_OFF is at 0x3218 just
like DPFC_FENCE_YOFF.
This feels like a simple typo in BSpec. 321Bh looks a lot like 3218h
after all.
Should still be tested on real hardware of course. But I don't have
any mobile gen4 systems.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The debug message telling FBC1 has been enabled is missing a newline.
Add it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
On CTG and IVB+ we don't try to preserve any bits from the
DPFC_CONTROL register. Follow suit on ILK/SNB.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We will anyway re-enable FBC normally after resume, so trying to save
and restore the register makes little sense.
We do need to preserve the FBC1 interval bits in FBC_CONTROL since
we only initialize them during driver load, and try to preserve them
after that.
v2: s/I915_HAS_FBC/HAS_FBC/ and fix the check for gen4
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We set up all the bits for DPFC_CONTROL but forgot to actually
write them to the register. Oops.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Make the FBC plane macros take the plane as a parameter.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The ILK/SNB docs don't really mention the the DPFC_HT_MODIFY bit.
CTG docs clearly state that it should be set only when tracking
back buffer modification in persistent mode. The bit is supposed
to be set by software after the first CPU modification to the
back buffer, and it would get automagically cleared by the hardware
on the next page flip.
Since we only track front buffer modification we don't need to set
this bit. GTT modification tracking still appears to work on ILK
and SNB with the bit unset. I don't have a CTG to verify how that
behaves.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The ILK/SNB docs are a bit unclear what the persistent mode does, but
the CTG docs clearly state that it was meant to be used when we're
tracking back buffer modifications. We never do that, so leave it in
non-persistent mode.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We use nuking instead of render tracking on IVB+, so there's
no point in writing IVB_FBC_RT_BASE.
v2: Drop the IVB_FBC_RT_BASE write too
v3: Move the SNB stuff elsewhere, leaving only IVB+ here
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Ville Syrjälä
Dave Airlie
Patrik Jakobsson
Ben Widawsky
Akash Goel
Russell King
Jani Nikula
Daniel Vetter
Damien Lespiau
Chris Wilson
Rodrigo Vivi