| Commit message (Collapse) | Author | Age |
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This would have never worked.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This should really have been added in BDW integration, as well as:
commit 93bd8649dba3155d1a0ba2a902d9c49f1c75a1da
Author: Ben Widawsky <ben@bwidawsk.net>
Date: Tue Jul 16 16:50:06 2013 -0700
drm/i915: Put the mm in the parent address space
It didn't really matter before, but it will in the future.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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When we fail for some reason on loading the PDPs, it would be wise to
disable the PPGTT in the ring registers. If we do not do this, we have
undefined results.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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SNB has another register where the actual FBC CPU fence number is
stored. The documenation explicitly states that the fence number
in DPFC_CTL must be 0 on SNB. And in fact when it's not zero,
the GTT tracking simply doesn't work.
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>
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Oops, makes testing early boot failures in i915.ko a bit more pain, so
let's fix it.
v2: We already have a bit of static storage to track this (Chris).
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Too many t's.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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gcc complains that:
drivers/gpu/drm/i915/i915_debugfs.c: In function ‘display_crc_ctl_write’:
drivers/gpu/drm/i915/i915_debugfs.c:2393:2: warning: ‘val’ may be used uninitialized in this function [-Wuninitialized]
drivers/gpu/drm/i915/i915_debugfs.c:2350:6: note: ‘val’ was declared here
but it can't see that we're going to use val only in the success case.
So shut it up.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We need to hold the pc8 lock around toggling the value of gpu_idle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We send the primary and cursor plane data through the gamma unit.
In order to get matching output from sprites, also send the sprite
data through the gamma unit.
In the future we should add some properties to control this
explicitly, and also add properties for the per-sprite gamma ramps
what have you, but for now this seems like a reasonable thing to do.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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All the other .enable_fbc() funcs use plane_name(). Make
gen7_enable_fbc() do the same.
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>
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At least since SNB (perhaps even earlier) even the desktop parts
should have FBC.
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>
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The spec tells us that we need to emit an SRM after the LRI
to MSG_FBC_REND_STATE.
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>
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Don't issue the FBC nuke/cache clean command when invalidate_domains!=0.
That would indicate that we're not being called for the post-batch
flush.
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>
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This was forgotten in
commit 9d1cb9147dbe45f6e94dc796518ecf67cb64b359
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Fri Nov 1 13:32:08 2013 -0200
drm/i915: avoid unclaimed registers when capturing the error state
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It seems we do have machines with 3 HDMI/DVI outputs, so sharing
WRPLLs is the only way to get 3 pipes working.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68485
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Now we have this everywhere. Next up would be to wire up the DP
hotplug pin to speed up panel power sequencing for eDP panels ...
I've decided to leave the has_aux_irq logic in the code, it should
come handy for hw bringup.
For testing/fail-safety the dp aux code already has a timeout when
waiting for interrupts to signal completion and screams rather loud if
they don't arrive in time. Given that we need a real piece of hw to
talk to anyway this is probably as good as it gets.
v2: Don't check the dp aux channel bits on i965 machines, they have a
different meaning there. Yay for reusing bits at will! Spotted by
Jani.
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Pull in Jani's backlight rework branch. This was merged through a
separate branch to be able to sort out the Broadwell conflicts
properly before pulling it into the main development branch.
Conflicts:
drivers/gpu/drm/i915/intel_display.c
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Merge the bdw changes into the backlight rework branch so that we can
adapt the new code for bdw, too. This is a bit a mess, but doing this
another way would have delayed the merging of the backlight
refactoring. Mea culpa.
As discussed with Jani on irc only do bdw-specific callbacks for the
set/get methods and bake in the only other special-case into the pch
enable function.
Conflicts:
drivers/gpu/drm/i915/intel_panel.c
v2: Don't enable the PWM too early for bdw (Jani).
v3: Create new bdw_ functions for setup and enable - the rules change
sufficiently imo with the switch from controlling the pwm from the cpu
to controlling it completel from the pch to warrant this.
v4: Rip out unused pipe variable in bdw_enable_backlight (0-day
builder).
Tested-by: Ben Widawsky <ben@bwidawsk.net> (on bdw)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The backlight enable code now has the smarts to do the right thing. Only
do backlight register save/restore in UMS.
Some VLV specific code gets dropped as UMS is not supported on VLV.
v2: Move save/restore to UMS instead of removing completely (Daniel).
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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No longer needed. We now have fully cached max backlight values.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The quirk was added as what I'd say was a stopgap measure in
commit e85843bec6c2ea7c10ec61238396891cc2b753a9
Author: Kamal Mostafa <kamal@canonical.com>
Date: Fri Jul 19 15:02:01 2013 -0700
drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight
without really digging into what was going on.
Also, as mentioned in the related bug [1], having the quirk regressed
some of the machines it was supposed to fix to begin with, and there
were patches posted to disable the quirk on such machines [2]!
The fact is, we do need the BLM_PCH_PWM_ENABLE bit set to have
backlight. With the quirk, we've relied on BIOS to have set it, and our
save/restore code to retain it. With the full backlight setup at enable,
we have no place for things that rely on previous state.
With the per platform hooks, we've also made a change in the PCH
platform enable order: setting the backlight duty cycle between CPU and
PCH PWM enable. Some experimenting and
commit 770c12312ad617172b1a65b911d3e6564fc5aca8
Author: Takashi Iwai <tiwai@suse.de>
Date: Sat Aug 11 08:56:42 2012 +0200
drm/i915: Fix blank panel at reopening lid
indicate that we can't set the backlight before enabling CPU PWM; the
value just won't stick. But AFAICT we should do it before enabling the
PCH PWM.
Finally, any fallout we should fix properly, preferrably without quirks,
and absolutely without quirks that rely on existing state. With the per
platform hooks have much more flexibility to adjust the sequence as
required by platforms.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=47941
[2] http://lkml.kernel.org/r/1378229848-29113-1-git-send-email-kamal@canonical.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We should now have all the information we need to do a full
initialization of the backlight registers.
v2: Keep QUIRK_NO_PCH_PWM_ENABLE for now (Imre).
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Prepare for being able to use the information at enable.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We now have the max backlight value cached. Use it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This allows more flexibility in the ordering of the register writes, and
lets us drop level setting altogether as necessary on a per platform
basis.
For gen2-gen3, this is the only thing that happens in enable/disable.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It has per pipe registers.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Citing Jani's response to Imre's question in the review discussion:
> According to the gen2/3 bspec I have, the correct mask is
> BACKLIGHT_DUTY_CYCLE_MASK_PNV only in case of IS_PINEVIEW(dev), for
> everything else it's BACKLIGHT_DUTY_CYCLE_MASK.
What you say is correct, but we've treated all gen2/3 similar to PNV
since
commit ca88479c1c3b7b1a9f94320745f5331e1de77f80
Author: Keith Packard <keithp@keithp.com>
Date: Fri Nov 18 11:09:24 2011 -0800
drm/i915: Treat pre-gen4 backlight duty cycle value consistently
i.e. we only use the high 15 bits for all gen2/3. For non-PNV this just
means the lowest bit is always zero. For PNV the lowest bit has a
different meaning in both the PWM freq and duty cycle fields.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Make the commit message less empty.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The backlight code has grown rather hairy, not least because the
hardware registers and bits have repeatedly been shuffled around. And
this isn't expected to get any easier with new hardware. Make things
easier for our (read: my) poor brains, and split the code up into chip
specific functions.
There should be no functional changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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ALthough usually there's only one connector that supports backlight,
this also finds the correct connector. Before, we only updated the
connector on pipe A, which might not be the one with backlight. (This
only made a difference on BYT.)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Move from dev_priv to connector->panel. We still don't allow multiple
sysfs interfaces, though.
There should be no functional changes, except for a slight reordering of
connector backlight and sysfs destroy calls. (This change happens now
that the backlight device is actually per-connector, even though the
destroy calls became per-connector earlier.)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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I've always felt the backlight device conditional build has been all
backwards. Make it feel right.
Gently move things towards connector based stuff while at it.
There should be no functional changes.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We don't init the lock nor set up all the other state. And it doesn't
make sense anyway.
This appeases lockdep when running the igt/drv_debugfs_reader test.
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We have a nice macro, so use it.
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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It's been 5 years since kms support was merged and roughly 4 years
since UMS support was ripped out from userspace drivers.
Thus far it's not been a big burden to keep the ums paths alive, and
we've made some good progress in better separating it from the kms
code by sprinkling DRIVER_MODESET checks all over the place.
But now that the drm demidlayering is within reach this changes. I
want to make the driver loading code more robust using devres.c and
other cool tricks. But that doesn't work with ums due to the
shadow-attach trick. Which means we either
a) need to split out a complete ums codebase like radeon has
b) kill it for good.
The 2nd option is obviously much less work than the first, so I think
it's time to test the waters and see how many people out there still
use ums.
I've decided that silently failing to initialize the driver (and not
e.g. failing to load the module) is the right thing. That way we
should only get reports from users that actually care about some ums
features (like accelerated gl or support for secondary outputs).
Everyone else will just fall back to the vesa X driver.
For developers there's a small info level dmesg output.
The plan is to drop this Kconfig option after 3.16 (so gives us 2 full
releases) and then start killing code for real 2-3 releases
afterwards. That should be more than enough time for users to pipe up.
Of course if anyone does we need to revisit this plan and maybe go
with option a) above.
Also enable the KMS support by default in Kconfig and polish the help
texts a bit.
v2: Add the missing hunk of actual code changes. Oops. (Ville)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Dave Airlie <airlied@gmail.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>
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Thus far we've tried to carefully work around the fact that old
userspace relied on the AGP-backed legacy buffer mapping ioctls for a
bit too long. But it's really horribly, and now some new users for it
started to show up again:
http://www.mail-archive.com/mesa-dev@lists.freedesktop.org/msg45547.html
This uses drmAgpSize to figure out the GTT size, which is both the
wrong thing to inquire and also might force us to keep this crap
around for another few years.
So I want to stop this particular zombie from raising ever again. Now
it's only been 4 years since XvMC was fixed for gen3, so a bit early
by the usual rules. But since Linus explicitly said that an ABI
breakage only counts if someone actually observes it I want to tempt
fate an accelarate the demise of AGP.
We probably need to wait 2-3 kernel releases with this shipping until
we go on a killing spree code-wise.
v2: Remove intel_agp_enabled since it's unused (Ville).
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Dave Airlie <airlied@gmail.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>
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Most platforms din't hit this condition, but if we want to allow
building without agp we should also make this allowed on gen3.
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>
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Insist that flags and pad fields are zero, so that
we can safely extend the interface in future.
Testcase: igt/gem_reset_stats/params
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Preallocated objects will already have been added to the vma_list when
creating their ggtt vma entry, and coincidentally also marked as holding
a ggtt mapping. Repeating the vma_list manipulation when setting up the
ggtt after preallocation is a recipe for an unhappy kernel.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Use the improve commit message suggest by Chris.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This ioctl returns reset stats for specified context.
The struct returned contains context loss counters.
reset_count: all resets across all contexts
batch_active: active batches lost on resets
batch_pending: pending batches lost on resets
v2: get rid of state tracking completely and deliver only counts. Idea
from Chris Wilson.
v3: fix commit message
v4: default context handled inside i915_gem_context_get_hang_stats
v5: reset_count only for priviledged process
v6: ctx=0 needs CAP_SYS_ADMIN for batch_* counters (Chris Wilson)
v7: context hang stats never returns NULL
v8: rebased on top of reworked context hang stats
DRM_RENDER_ALLOW for ioctl
v9: use DEFAULT_CONTEXT_ID. Improve comments for ioctl struct members
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ian Romanick <idr@freedesktop.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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reset_counter will be incremented twice per successful
reset. Odd values mean reset is in progress and even values
mean that reset has completed.
Reset status ioctl introduced in following commit
needs to deliver global reset count to userspace so
use reset_counter to derive the actual reset count
for the gpu
Note that reset in progress is enough to increment
the counter.
v2: wedged equals reset in progress (Daniel Vetter)
v3: Fixed stale comments (Damien Lespiau)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We don't want any ERROR for simulated gpu hangs, otoh printing the
error code when the reset failed for real should be interesting.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71333
lu hua <huax.lu@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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vlv_dpio_read/write should be describe more in PHY centric instead of
display controller centric.
Create a enum dpio_channel for channel index and enum dpio_phy for PHY
index. This should better to gather for upcoming platform.
v2: Rebase the code based on
drm/i915/vlv: Fix typo in the DPIO register define.
v3: Rename vlv_phy to dpio_phy_iosf_port and define additional macro
DPIO_PHY, and remove unrelated change. (Ville)
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We only depend on the intel-gtt module for GTT frobbign on older gens.
The intel_agp module is optional, except for UMS and some old XvMC
userland on gen3. So make AGP support optional. As before, we will
fail the i915 init for UMS and gen3 KMS the same as before if
intel_agp isn't around.
intel-gtt.c is left with a somewhat ugly ifdef mess, but I'm going
to save that for a later cleaning.
At least my gen2 still works with the patch and CONFIG_AGP=n.
v2: Make i915 depend on X86 and PCI, and intel-gtt depend on PCI
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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configdb document.
Some VLV PHY/PLL DPIO registers have group/lane/channel access. Current
DPIO register definition doesn't have a structure way to break them
down. As a result it is not easy to match the PHY/PLL registers with the
configdb document. Rename those registers based on the configdb for easy
cross references, and without the need to check the offset in the header
file.
New format is as following.
<platform name>_<DPIO component><optional lane #>_DW<dword # in the
doc>_<optional channel #>
For example,
VLV_PCS_DW0 - Group access to PCS for lane 0 to 3 for PCS DWORD 0.
VLV_PCS01_DW0_CH0 - PCS access to lane 0/1, channel 0 for PCS DWORD 0.
Another example is
VLV_TX_DW0 - Group access to TX lane 0 to 3 for TX DWORD 0
VLV_TX0_DW0 - Refer to TX Lane 0 access only for TX DWORD 0.
There is no functional change on this patch.
v2: Rebase based on previous patch change.
v3: There may be configdb different version that document the start DW
differently. Add a comment to clarify. Fix up some mismatch start DW
for second PLL block. (Ville)
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Make the cur_delay limiting code a bit less prone to typo errors
by using clamp_t().
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Polling to make sure the current GPU frequency matches the last
requested frequency should not be necessay, and if there's some
throttling involved, the two might not match anyway.
Since we're still seeing this trigger occasionally, and it just
introduces a rather pointless 10 ms delay, it seems like better
to kill it off.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The RPS register writing routines use the current value of min/max to
set certain limits and interrupt gating. If we set those afterwards, we
risk setting up the hw incorrectly and losing power management events,
and worse, trigger some internal assertions.
Reorder the calling sequences to be correct, and remove the then
unrequired clamping from inside set_rps(). And for a bonus, fix the bug
of calling gen6_set_rps() from Valleyview.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
CC: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The max frequency reporting is not correct. But there is already an existing
valleyview_rps_max_freq and valleyview_rps_min_freq to get the
frequency. Use that for i915_cur_delayinfo.
Signed-off-by: Chon Ming Lee <chon.ming.lee@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Use the same wait_for_vblank code for CTG that we use for ILK+.
Also fix the name of the frame counter register while at it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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