There is a different ACK register for force wake on Haswell, so account
for that.
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
As a w/a to prevent reads sporadically returning 0, we need to wait for
the GT thread to return to TC0 before proceeding to read the registers.
v2: adapt for Haswell changes (Eugeni).
v3: use wait_for_atomic_us for thread status polling.
v3: *really* use wait_for_atomic for polling.
References: https://bugs.freedesktop.org/show_bug.cgi?id=50243
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tidy up the routines for interacting with the GT (in particular the
forcewake dance) which are scattered throughout the code in a single
structure.
v2: use wait_for_atomic for polling.
v3: *really* use wait_for_atomic for polling.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Daniel complained about this on initial review, but he graciously moved
the patches forward. As promised, I am delivering the desired cleanup
now.
Hopefully I didn't screw the trivial patch up ;-)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Looks like a copy/paste error.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The prep to remove the flushing list in
commit cc889e0f6c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Jun 13 20:45:19 2012 +0200
drm/i915: disable flushing_list/gpu_write_list
causes quite some decent regressions. We can fix this by setting the
CS_STALL bit to ensure that the following seqno write happens only
after the cache flush has completed. But only do that when the caller
actually wants the flush (and not also when we invalidate caches
before starting the next batch).
I've looked through all our ancient scrolls about gen6+ pipe control
workarounds, and this seems to be indeed a legal combination: We're
allowed to set the CS_STALL bit when we flush the render cache (which
we do).
While yelling at this code, also pass back the return value from
intel_emit_post_sync_nonzero_flush properly.
v2: Instead of emitting more pipe controls, set the CS_STALL bit on
the write flush as suggested by Chris Wilson. It seems to work, too.
Cc: Eric Anholt <eric@anholt.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51436
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51429
Tested-by: Lu Hua <huax.lu@intel.com>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If we ever hit the default case in the switch statement we'll return
from the function without freeing the memory we just allocated to
'intel_plane' (but that has not been used).
This patch gets rid of the leak by freeing the memory just before we
return.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We shouldn't hit this path anyway, but make it use the IVB sprite format
definition to avoid confusion.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is the quick&dirty way Dave Airlie suggested to workaround the
midlayer drm agp brain-damange. Note that i915_probe is only called
when the driver has ksm enabled, so no need to check for that.
We also need to move the intel_agp_enabled check at the right place.
Note that the only thing this does is enforce the correct module load
order (by using a symbol from intel-agp.ko) to ensure that the fake
agp driver is ready before the drm core tries to set up the agp stuff.
v2: Add a comment to explain why gen3 needs all this legacy fake agp
stuff - we've shipped an XvMC library with a kms-enabled ddx that
requires it (but only on gen3).
v3: Make it clear that this is only a gen3 issue in the comment.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This single leftover use is due to a patch that went into 3.5 through
-fixes. With the fake agp stuff on demise, at least for gen6+ we can't
use this any more.
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The enable functions grabbed dev->struct_mutex themselves, whereas
the disable functions expected dev->struct_mutex to be held by the
caller. Move the locking out to the (currently only) callsite of
intel_enable_gt_powersave to make this more consistent.
Originally this was prep work for future patches, but I've chased down
a totally wrong alley. Still, I think this is a sensible
clarification.
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
... instead of calling each one for each generation indiviudally.
Notice that we've already managed to be inconsistent, the resume path
is missing an IS_VLV check. As a nice benefit we can mark all the
platform specific enable/disable functions as static and hide them in
intel_pm.c
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge tag 'v3.5-rc4' into drm-intel-next-queued
I want to merge the "no more fake agp on gen6+" patches into
drm-intel-next (well, the last pieces). But a patch in 3.5-rc4 also
adds a new use of dev->agp. Hence the backmarge to sort this out, for
otherwise drm-intel-next merged into Linus' tree would conflict in the
relevant code, things would compile but nicely OOPS at driver load :(
Conflicts in this merge are just simple cases of "both branches
changed/added lines at the same place". The only tricky part is to
keep the order correct wrt the unwind code in case of errors in
intel_ringbuffer.c (and the MI_DISPLAY_FLIP #defines in i915_reg.h
together, obviously).
Conflicts:
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_ringbuffer.c
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This box claims to have an LVDS interface but doesn't
actually have one.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to initialize this to false, because the is_rb callback only
ever sets it to true.
Noticed while reading through the code.
Cc: stable@vger.kernel.org
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
With the code in place, we can bind the driver, should make bisect possible.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Enable the on-chip messaging between the display engine and the GT.
v2: use bit definitions for DPFLIPSTAT reg
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
And restructure the IRQ handling a little. We can use pipestat for most
things, and make sure we don't affect pipe events when enabling and
disabling vblank interupts.
We can leave vblank interrupts masked but enabled so we're not dependent
on the first client to toggle the disable timer. We can also mask all
render based interrupts, since the ring code will handle unmasking them
for us.
v2: roll in vblank masking, remove unneeded variable (Daniel)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Since the offsets have all moved around.
v2: switch IS_DISPLAYREG and IS_VALLEYVIEW checks around since the latter is
cheaper (Daniel)
bail out early in IS_DISPLAYREG if the reg is in the new range (Daniel)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Fixup if cascading fail that broke HAS_FORCEWAKE machines.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
- Use the correct union for getting the tiling info
- Properly init the PIPE_CONFIG field for SI
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
ValleyView is similar to IbexPeak here, but with different register
offsets.
v2: use SDVOB instead ov VLV_HDMIB (Daniel)
drop unnecessary eDP check in DP_C init (Daniel)
eDP support will be coming later from Shobit.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Might be able to merge this back in at some point, but we're seeing bugs
with ADPA based detection, so keep it separate for now with explicit
hotplug trigger usage.
v2: drop superfluous debug message
v3: comment forced detection, need to debug (Eugeni)
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
VLV supports two dp panels, there are two set of panel power sequence
registers which needed to be programmed based on the configured
pipe. This patch add supports for the same
Acked-by: Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Beeresh G <beeresh.g@intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Reviewed-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Drop the lone hunk and only keep the register definitions - I
loathe incomplete bandaids. Also add a comment that this is for vlv.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Add some VLV limit structures and update the PLL code.
v2: resolve conflicts, Vijay to re-post with PLL valid checks and fixed limits
v3: re-add dpio write function
v4: squash in Vijay's fixes for the PLL limits and clean up the m/n finder
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is just the minimal patch to disable all this code so that we can
do decent amounts of QA before we rip it all out.
The complicating thing is that we need to flush the gpu caches after
the batchbuffer is emitted. Which is past the point of no return where
execbuffer can't fail any more (otherwise we risk submitting the same
batch multiple times).
Hence we need to add a flag to track whether any caches associated
with that ring are dirty. And emit the flush in add_request if that's
the case.
Note that this has a quite a few behaviour changes:
- Caches get flushed/invalidated unconditionally.
- Invalidation now happens after potential inter-ring sync.
I've bantered around a bit with Chris on irc whether this fixes
anything, and it might or might not. The only thing clear is that with
these changes it's much easier to reason about correctness.
Also rip out a lone get_next_request_seqno in the execbuffer
retire_commands function. I've dug around and I couldn't figure out
why that is still there, with the outstanding lazy request stuff it
shouldn't be necessary.
v2: Chris Wilson complained that I also invalidate the read caches
when flushing after a batchbuffer. Now optimized.
v3: Added some comments to explain the new flushing behaviour.
Cc: Eric Anholt <eric@anholt.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
It seems to blow up my ilk in all kinds of strange ways. And now that
we're no longer resetting the entire modeset state, it shouldn't be
necessary any longer.
This essentially reverts
commit f817586ceb
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Apr 10 15:50:11 2012 +0200
drm/i915: re-init modeset hw state after gpu reset
safe for the introduction of modeset_init_hw, that one is nice to
prevent code duplication between driver load and resume.
v2: Add a comment to the code to warn future travellers of the dragon
dungeon ahead, suggested by Chris Wilson.
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The idr code already passes us the pointer associated with that id, so
no need to look it up again. Also, we'll kill the idr right away, so
there's no issue with leaving these dangling pointers behind - the
current code does the same.
v2: Also drop the file argument, spotted by Ben Widawsky.
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This is our customary "no such object" errno, not -EINVAL.
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
It doesn't hurt and it at least prevents us from OOPSing left and
right at quite a few places. This also allows us to simplify the code
a bit by folding the only line of context_open into the callsite.
We obviuosly also need to run the cleanup code unconditionally, too.
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
commit 8e96d9c4d9
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Mon Jun 4 14:42:56 2012 -0700
drm/i915: reset the GPU on context fini
broke module unload because it reset the gpu before we've stopped
touching it. Later on in the unload sequence the ringbuffer code
complained that the gpu would idle properly (because intel_gpu_reset
only resets the hw and not our sw state).
v2: Reorder things so that we reset the gpu _before_ we release the
backing storage of the default context.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51183
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Prevents a possible hang: WaDisableL3Bank2xClockGate.
v2: only apply to VLV, IVB doesn't need this anymore
References: https://bugs.freedesktop.org/show_bug.cgi?id=50245
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Another required workaround for a potential hang:
WaDisableTDLUnitClockGating.
v2: only apply this to VLV, IVB doesn't need it anymore (Eugeni)
References: https://bugs.freedesktop.org/show_bug.cgi?id=50245
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
According to the bspec for MBCTL:
Driver must set bit in the following scenarios:
- to realod teh h/w boot context every time it gets loaded through OS
- after an FLR clears the register (BIOS won't run afterwards)
References: https://bugs.freedesktop.org/show_bug.cgi?id=50237
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The RCBP workaround still applies on these chips, and we need VDS as well.
v2: remove MB boot fetch that snuck in (Daniel)
add workaround tags to comments for easier internal tracking (Daniel)
v3: only apply RCPB and VDS on SNB and VLV, IVB doesn't need them (Eugeni)
References: https://bugs.freedesktop.org/show_bug.cgi?id=50251
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
I've added a bit of logic such that running the hangman test on chips
without any hw reset support at all doesn't wedge the gpu because the
reset failed. This relied on checking for non-null stop_rings.
Unfortunately I've botched a rebase somewhere and stop_rings is still
cleared at the old place before the reset code.
Fix this up so that running the i-g-t tests on gen2/3 doesn't result
in a wedged gpu.
v2: Actually remove the lines instead of adding them twice ... my git
license should be revoked immediately.
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
I'm seeing about a 5% FPS improvement across various benchmarks on my
IVB i3. Rumor has it that the higher end parts show even more benefit.
This derives from a patch originally given to me by Bernard. The docs
are confusing about the definition names (ie. medium really seems like
max), but it would seem it gives more cache to the GT at the expense of
uncore. This configuration makes the split most in favor of the GT. I've
not tried the other IDICOS values.
Cc: "Kilarski, Bernard R" <bernard.r.kilarski@intel.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This got dropped as a result of the last round of comments. I didn't
test it on unsupported HW (which this is likely the case).
Note that this prevents hw context from blowing up on any pre-gen6 hw.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51142
[danvet: Added note and buglink.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Somehow this went unnoticed in the past reviews, but the condition would
never timeout properly.
This was initially introduced in the v2 of original SBI enabling patch.
Highly embarrassing.
Note that we now actually time out for the read, which resulted in gcc
complaining that we can now return unitialized garbage if that
happens. There's not much we can do here because there's not much
point in thread -EIO all the way down through these functions. Hence
simply shut up the compiler.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
[danvet: Added note and squashed uninitialized value shut-up into this
patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: cache the EDID for eDP panels
Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere"
drm/i915: eDP aux needs vdd
drm/i915: don't enumerate HDMID if an eDP panel is already active on the port
They aren't going anywhere, and probing on DDC can cause the panel to
blank briefly, so read them up front and cache them for later queries.
v2: fix potential NULL derefs in intel_dp_get_edid_modes and
intel_dp_get_edid (Jani)
copy full EDID length, including extension blocks (Takashi)
free EDID on teardown (Takashi)
v3: malloc a new EDID buffer that's big enough for the memcpy (Chris)
v4: change handling of NULL EDIDs, just preserve the NULL behavior
across detects and mode list fetches rather than trying to re-fetch
the EDID (Chris)
v5: be glad that Chris is around to remind me to hit C-x C-s before
committing.
References: https://bugs.freedesktop.org/show_bug.cgi?id=46856
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This reverts commit 092945e11c.
This commit prevents a DP screen from properly training the link.
Oddly enough it works, once the machine has been warm-booted with an
older kernel.
According to DP docs this _should_ have been the right precharge time.
Also, the commit that originally introduces this was just general snb
DP enabling and didn't mention any specific reason for this special
value. Whatever, trust the reporter that this makes things worse and
let's just revert it.
v2: Less spelling fail.
Cc: Adam Jackson <ajax@redhat.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Reported-by: "Wouter M. Koolen" <W.M.Koolen-Wijkstra@cwi.nl>
Buglink: https://lkml.org/lkml/2012/6/14/301
Cc: stable@vger.kernel.org (only for 3.4)
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The new oui probe has been missing these.
This issue has been introduce in
commit 0d19832853
Author: Adam Jackson <ajax@redhat.com>
Date: Mon May 14 16:05:47 2012 -0400
drm/i915/dp: Probe branch/sink OUIs
v2: Do the eDP vdd dance of simply not probing the OUI on eDP panels
as suggested by Chris Wilson.
v3: Fix up the error path fail - I suck.
Cc: Adam Jackson <ajax@redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695
Tested-by: Yang Guang <guang.a.yang@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This prevents the HDMI detect functions from poking at an eDP
connected panel, which can lead to trouble.
[danvet: Note that we have some other reports of DP vs. HDMI fighting,
but the general case is a much bigger fish to fry.]
References: https://bugs.freedesktop.org/show_bug.cgi?id=42278
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Required for streamout. Bump drm minor.
Marek v2: fix pkt->count check
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- SMX_SAR_CTL0 needs to be programmed correctly to prevent
problems with memory exports in certain cases.
- VC_ENHANCE needs to be initialized on 6xx/7xx.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
