Commit graph

7728 commits

Author SHA1 Message Date
Satheeshakrishna M
3cdf122ccf drm/i915/skl: SKL pipe misc programming
Pipe misc programming in gen9 is similar to BDW. Extending the BDW
implementation to gen 9.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:52:01 +02:00
Damien Lespiau
a440ca6f28 drm/i915/skl: SKL shares the same underrun interrupt as BDW
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:52:01 +02:00
Damien Lespiau
2a9b753966 drm/i915/skl: Report the PDP regs as in gen8
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:52:00 +02:00
Damien Lespiau
2fcdcd8a2e drm/i915/skl: report the same INSTDONE registers as gen8
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:52:00 +02:00
Damien Lespiau
c3f59a67ad drm/i915/skl: Allow the reg_read ioctl to return RCS_TIMESTAMP
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:51:59 +02:00
Damien Lespiau
3fdcf80f75 drm/i915/skl: Initialize PPGTT like gen8
gen9 uses very similar memory management to what gen8 has. Just follow
the flow.

v2: Fix trivial conflict (Damien)

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:51:59 +02:00
Damien Lespiau
b9ca5fadb3 drm/i915/skl: Provide a get_aux_send_ctl() vfunc for skylake
Skylake doesn't use the pre-charge field now, but, instead, we need to
specify the total number of SYNC pulses for the SYNC phase (pre-charge +
SYNC pattern pules). Let's use the default value (32) for that.

v3: increase DP AUX TX timeout as 400us is not to be used on SKL
    apparently (Jesse).

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:47:41 +02:00
Damien Lespiau
b6b5e38323 drm/i915/skl: Implement the get_aux_clock_divider() DP vfunc
We need to provide a vfunc that will make the code in intel_dp_aux_ch()
loop once to start the AUX transaction. The return value (clock divider)
is unused on SKL, so just return 1.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:47:40 +02:00
Damien Lespiau
fb8aad4bec drm/i915/skl: gen9 uses the same bind_vma() vfuncs as gen6+
Temporary plug a BUG() while waiting for a better solution. See:

  http://lists.freedesktop.org/archives/intel-gfx/2014-January/038132.html

However Chris was looking at cleaning-up this as well, so went for the
easy intermediate solution instead.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:47:40 +02:00
Damien Lespiau
663750141e drm/i915/skl: Add the additional graphics stolen sizes
Skylake introduces new stolen memory sizes starting at 0xf0 (4MB) and
growing by 4MB increments from there.

v2: Rebase on top of the early-quirk changes from Ville.

v3: Rebase on top of the PCI_IDS/IDS macro rename

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:47:39 +02:00
Damien Lespiau
1b1aad754c drm/i915/skl: Skylake moves AUX_CTL from PCH to CPU
So we can apply the old aux_ctl = dp_ctl + 0x10 rule again.

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:47:39 +02:00
Damien Lespiau
5a9d1f1a8f drm/i915/skl: Add support for DP voltage swings and pre-emphasis
They are similar to Haswell.

v2: Rebased on top of drm-intel-nightly
v3: Rebased on top of Sonika's DP train defines renaming

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:45:44 +02:00
Damien Lespiau
7f88e3af20 drm/i915/skl: Program the DDI buffer translation tables
A couple of things have changed compared to Broadwell:
  - Entry 9 is used for eDP
  - No more FDI

v2: Update the translation values to latest specs.
v3: Rebase on top of the BDW HDMI translation patch
v4: Remove the low voltage edp tables,
    Rebase on top of the patch not writing the HDMI entry on eDP/FDI
    DDIs (Satheesh, Paulo).
v5: Apply the / 2 fix for the number of HDMI entries (Satheesh)
v6: Rebase on top of Jani's clean up for the DDI_BUF_TRANS tables
v7: Restore the commit message that was mangled by error

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:45:43 +02:00
Damien Lespiau
ca3704555c drm/i915/skl: Don't try to read out the PCH transcoder state if not present
When the platform doesn't have a FDI link, don't try to read out the
state of a potential PCH transcoder.

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Don't open-code HAS_FDI if there's only one place that needs
it. Acked by Damien on irc.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:41:33 +02:00
Damien Lespiau
884497edd9 drm/i915/skl: Don't create a VGA connector on Skylake
v2: Rebase on top of the intel_crt_present() addition
v3: Fix rebase error (we were patching the wrong function)

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:39:46 +02:00
Damien Lespiau
70d21f0e91 drm/i915/skl: Implement the new update_plane() for primary planes
Skylake makes primary planes the same as sprite planes and call the
result "universal planes".

This commit emulates a primary plane with plane 0, taking the
opportunity to redefine primary and sprite registers to be identical now
that the underlying hardware is. It also makes sense as plenty of fields
have changed.

v2: Rebase on top of the vma code.

v3: Follow upstream evolution:
- Drop return values.
- Remove pipe checks since redudant and BUG instead.
- Remove tiling checks and BUG instead.
- Drop commented out DISP_MODIFY usage.

v4: s/plane/primary_plane/

v5: Misc fixes:
- Fix the fields we need to clear up
- Disable trickle feed
- Correctly use PLANE_OFFSET for the panning

v6: (Jesse)
Use pipe src size when programming plane size. This makes cloned configs
work correctly w/o the use of a panel fitter.

v7: Rebase on top of Ville's rmw elimination series

v8: Remove clearing the trickle feed bit now that we don't do a RMW (Rodrigo,
    Damien)
    Add a comment about the stride unit (Rodrigo)

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (v1,5,6,7)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2,3)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:39:46 +02:00
Robert Beckett
5907f5fb6a drm/i915/skl: i915_swizzle_info gen9 fix
Fix ARB_MODE register read for gen >= 8 in i915_swizzle_info

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Robert Beckett <robert.beckett@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
2014-09-24 14:35:55 +02:00
Damien Lespiau
1fada4cc6a drm/i915/skl: Framebuffers need to be aligned to 256KB on Skylake
v2: Also align X tiled fbs to 256KB (Thomas)

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:33:15 +02:00
Imre Deak
fbdcb06880 drm/i915/skl: don't set the AsyncFlip performance mode for Gen9+
The following sets the AsyncFlip performance mode for everything above
Gen6:

commit 4790cb36b3eede8fb0cca529dc1d31b9936fa24b
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Sun Jan 20 16:11:20 2013 +0000

    drm/i915: Disable AsyncFlip performance optimisations

Starting from Gen9 the MI_MODE register layout changes and doesn't
include the above bit.

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:33:15 +02:00
Damien Lespiau
8a8b009d13 drm/i915/skl: Skylake shares the interrupt logic with Broadwell
Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:33:14 +02:00
Damien Lespiau
da2078cd00 drm/i915/skl: Provide a placeholder for init_clock_gating()
v2: Rebase on top of the broadwell_init_clock_gating() name change

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:33:14 +02:00
Damien Lespiau
01209dd56e drm/i915/skl: Fence registers on SKL are the same as SNB
v2: Rebased on top of the i915_gpu_error.c extraction.

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:33:13 +02:00
Daisy Sun
043efb1111 drm/i915/skl: SKL FBC enablement
Enable FBC feature on Skylake

Issue: VIZ-3788
Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Daisy Sun <daisy.sun@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:32:15 +02:00
Satheeshakrishna M
7201c0b3a4 drm/i915/skl: Add an IS_SKYLAKE macro
Adding new macro IS_SKYLAKE for skylake specific implementation.

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Satheeshakrishna M <satheeshakrishna.m@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:32:15 +02:00
Damien Lespiau
b71252dc48 drm/i915/skl: Add an IS_GEN9() define
Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:32:14 +02:00
Damien Lespiau
72bbf0af0c drm/i915/skl: Add the Skylake PCI ids
v2: Squash in 2nd patch from Damien for more ids (Daniel)
v3: info->has*ring -> info->ring_mask conversion. Also add VEBOX support.
v4: Fold in update from Damien
v5: Rebase and add GEN_DEFAULT_PIPEOFFSETS
v6: Add more PCI ID (Vandana)
v7: Rebase and add IVB_CURSOR_OFFSETS
v8: Renamed the macro from _PCI_IDS to _IDS for consistency

Reviewed-by: Thomas Wood <thomas.wood@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 14:32:14 +02:00
Mika Kuoppala
d37cf5f7e1 drm/i915/bdw: Cleanup pre prod workarounds
as these have been fixed in production hw and hurt performance
if applied.

v2: adjust requested ring space (Ville)

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83482
Tested-by: zhoujian <jianx.zhou@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 10:38:41 +02:00
Rodrigo Vivi
0aa4878397 drm/i915: PSR: Organize PSR enable function
We don't need to setup everything else if it doesn't match all conditions.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 10:37:00 +02:00
Rodrigo Vivi
ba80f4d426 drm/i915: PSR: organize setup function.
psr_enabled is already by itself a setup once so let's put the W/As there and
rename old setup once to setup_vsc.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-24 10:36:31 +02:00
Daniel Vetter
d9fc9413f9 drm: Extract <drm/drm_gem.h>
v2: Don't forget git add, noticed by David.

Cc: David Herrmann <dh.herrmann@gmail.com>

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-09-24 11:43:41 +10:00
Jani Nikula
c84db77010 drm/i915/hdmi: fix hdmi audio state readout
Check the correct bit for audio. Seems like a copy-paste error from the
start:

commit 9ed109a7b4
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Apr 24 23:54:52 2014 +0200

    drm/i915: Track has_audio in the pipe config

Reported-by: Martin Andersen <martin.x.andersen@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82756
Cc: stable@vger.kernel.org # 3.16+
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-09-23 16:36:12 +03:00
Brad Volkin
22cb99af39 drm/i915: Don't leak command parser tables on suspend/resume
Ring init and cleanup are not balanced because we re-init the rings on
resume without having cleaned them up on suspend. This leads to the
driver leaking the parser's hash tables with a kmemleak signature such
as this:

unreferenced object 0xffff880405960980 (size 32):
  comm "systemd-udevd", pid 516, jiffies 4294896961 (age 10202.044s)
  hex dump (first 32 bytes):
    d0 85 46 c0 ff ff ff ff 00 00 00 00 00 00 00 00  ..F.............
    98 60 28 04 04 88 ff ff 00 00 00 00 00 00 00 00  .`(.............
  backtrace:
    [<ffffffff81816f9e>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff811fa678>] kmem_cache_alloc_trace+0x168/0x2f0
    [<ffffffffc03e20a5>] i915_cmd_parser_init_ring+0x2a5/0x3e0 [i915]
    [<ffffffffc04088a2>] intel_init_ring_buffer+0x202/0x470 [i915]
    [<ffffffffc040c998>] intel_init_vebox_ring_buffer+0x1e8/0x2b0 [i915]
    [<ffffffffc03eff59>] i915_gem_init_hw+0x2f9/0x3a0 [i915]
    [<ffffffffc03f0057>] i915_gem_init+0x57/0x1d0 [i915]
    [<ffffffffc045e26a>] i915_driver_load+0xc0a/0x10e0 [i915]
    [<ffffffffc02e0d5d>] drm_dev_register+0xad/0x100 [drm]
    [<ffffffffc02e3b9f>] drm_get_pci_dev+0x8f/0x200 [drm]
    [<ffffffffc03c934b>] i915_pci_probe+0x3b/0x60 [i915]
    [<ffffffff81436725>] local_pci_probe+0x45/0xa0
    [<ffffffff81437a69>] pci_device_probe+0xd9/0x130
    [<ffffffff81524f4d>] driver_probe_device+0x12d/0x3e0
    [<ffffffff815252d3>] __driver_attach+0x93/0xa0
    [<ffffffff81522e1b>] bus_for_each_dev+0x6b/0xb0

This patch extends the current convention of checking whether a
resource is already allocated before allocating it during ring init.
Longer term it might make sense to only init the rings once.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83794
Tested-by: Kari Suvanto <kari.tj.suvanto@gmail.com>
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-09-23 14:50:01 +03:00
Paulo Zanoni
9adccc6063 drm/i915: add SW tracking to FBC enabling
Currently, calling intel_fbc_enabled() will trigger a register read.
And we call it a lot of times, even when FBC is disabled, so saving a
few cycles would be a good thing.

Another reason for this patch is because we currently call
intel_fbc_enabled() while the HW is runtime suspended, so the read
makes no sense and triggers a WARN. This happens even if FBC is
disabled by default. Of course one could argue that we just shouldn't
be calling intel_fbc_enabled() while the driver is runtime suspended,
and I agree that's a good argument, but I still think that the reason
explained in the first paragraph already justifies the patch.
This problem can easily be reproduced with many subtests of
igt/pm_rpm, and it is a regression introduced by:

    commit c5ad011d7d
    Author: Rodrigo Vivi <rodrigo.vivi@intel.com>
    Date:   Mon Aug 4 03:51:38 2014 -0700
        drm/i915: FBC flush nuke for BDW

Testcase: igt/pm_rpm/cursor (and others)
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-23 10:28:53 +02:00
Paulo Zanoni
d2dee86cec drm/i915: extract intel_init_fbc()
Because I plan to expand it a little bit.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-23 10:27:34 +02:00
Daniel Vetter
b680c37a4d drm/i915: DocBook integration for frontbuffer tracking
I shouldn't ask everyone to do this and fail myself ...

This extracts all the frontbuffer tracking functions into
intel_frontbuffer.c, adds a DOC overview section and also adds the
missing kerneldoc for i915_gem_track_fb and also pulls it into the
same section for convenience.

v2: Don't forget about the header files.

v3: Oops, might check compilation next time around. To make my life
easier drop the increase_pllclock from set_base_atomic since really,
it doesn't matter if you see your Oops or kgdb with a tiny bit of lag.

v4: Try to better explain how to actually use this, requested by Paulo
on irc.

v5: Explain invalidate/flush a bit clearer.

v6: s/business/busyness/

Acked-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2014-09-19 19:46:49 +02:00
Chris Wilson
1893a71b1e drm/i915: Inline feature detection into sanitize_enable_ppgtt
Rather than splitting and hiding away critical parts of
sanitize_enable_ppgtt() into single use macros in the headers, inline
them into the function for clarity.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 17:58:42 +02:00
Brad Volkin
00caf0199f drm/i915: Log a message when rejecting LRM to OACONTROL
The other paths in the command parser that reject a batch all
log a message indicating the reason. We simply missed this one.

Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 17:56:20 +02:00
Brad Volkin
9beb0ccb66 drm/i915: Re-enable the command parser when using PPGTT
In commit

commit 896ab1a5d5
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Aug 6 15:04:51 2014 +0200

    drm/i915: Fix up checks for aliasing ppgtt

it looks like we accidentally inverted the check that the command
parser should only run when the driver enables some form of PPGTT.

Testcase: igt/gem_exec_parse
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Brad Volkin <bradley.d.volkin@intel.com>
[danvet: Also drop the comment right above, all production vlv now
have hw ppgtt enabled.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 17:53:58 +02:00
Daniel Vetter
9d533c5a52 drm/i915: Update DRIVER_DATE to 20140919
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 17:07:10 +02:00
Deepak S
5cb13c07da drm/i915/vlv: Remove check for Old Ack during forcewake
Based on the HW team inputs. We can should not wait for the old ack,
Waiting for old ack might fail, when other forcewake came before the
present one is desserted.

for example, if forcewake bit 0 was set and before it could get cleared
forcewake bit 1 got set, HW eventually clear bit 0, when the bit 1
is cleared. i.e, bit 1 is still sent then forcewake bit 0 will still be
set.

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Add comment Ville requested.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:25 +02:00
Rodrigo Vivi
342e36c6b0 drm/i915: Avoid reading fbc registers in vain when fbc was never enabled.
If it wasn't never enabled by kernel parameter or platform default
we can avoid reading registers so many times in vain

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:24 +02:00
Rodrigo Vivi
01d06e9f96 drm/i915: Only flush fbc on sw when fbc is enabled.
Avoid touching fbc register when fbc is disabled.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:23 +02:00
Daniel Vetter
24955f2412 drm/i915: Clarify mmio_flip_lock locking
The ->queue_flip callback is always called from process context, so
plain _irq spinlock variants are enough.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:23 +02:00
Daniel Vetter
d2e40e2741 drm/i915: Clarify uncore.lock locking
Only one place looked in need of a bit of polish: hsw_restore_lcpll.
It's used by the runtime pm code and hence is always called from
process context. No irq flag saving required.

Another thing I've stumbled over is that we might need to add a
raw forcewake_get/put helpers which don't grab a runtime pm reference
but just check that the device isn't suspended - we have this duplicated
in the execlist code, too.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:22 +02:00
Daniel Vetter
133217869e drm/i915: Clarify irq_lock locking, special cases
Grab bag for all the special cases:
- i9xx_check_fifo_underruns is only called from crtc_enable hooks,
  i.e. process context.
- i915_enable_asle_pipestat is only called from interrupt postinstall
  hooks. So again process context.
- gen8_irq_power_well_post_enable is called from the runtime pm code,
  which again means process context.
- The open-coded hpd_irq_setup loop in _thaw is also running in process
  context.

So for all of them the plain _irq variant is sufficient.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:21 +02:00
Daniel Vetter
222c7f51b0 drm/i915: Clarify irq_lock locking, irq handlers
irq handlers always run with interrupts locally disabled, so
plain spinlocks is all we need. I've also reviewed again that they
all follow the _irq_handler postfix convention.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:21 +02:00
Daniel Vetter
d62074358d drm/i915: Clarify irq_lock locking, interrupt install/uninstall
All the interrupt setup/teardown hooks are always run from plain
process context. So again just the _irq variant is good enough.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:20 +02:00
Daniel Vetter
4cb2183228 drm/i915: Clarify irq_lock locking, work functions
Work functions are in process context, so plain _irq spinlock variants
is all we need.

The hpd reenable work didn't follow the _work/_work_func postfix
naming scheme, so adjust that while at it.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:20 +02:00
Daniel Vetter
2795aa4864 drm/i915: Clarify irq_lock locking, intel_tv_detect
->detect callbacks are only ever called from process context, and
there's no fancy nesting going on here. So plain _irq spinlock
variants is what we want.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:19 +02:00
Daniel Vetter
5b254c5978 drm/i915: Clarify gpu_error.lock locking
i915_capture_error_state can be called from all kinds of contexts, so
needs the full irqsave dance. But the other two places to grab and
release the error state are only called from process context. So
simplify them to the plaine _irq spinlock versions to clarify the
locking semantics.

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-09-19 14:43:18 +02:00