Commit Graph

389995 Commits

Author SHA1 Message Date
Ville Syrjälä 5113bc9b23 drm/i915: Document the inteded use of requested_mode
Try to clarify the purpose of requested_mode.

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>
2013-09-17 09:25:27 +02:00
Daniel Vetter 9084e7d276 drm/i915: re-layout intel_panel.c to obey 80 char limit
Especially intel_gmch_panel_fitting was shifting way too much over the
right edge and also was way too long. So extract two helpers, one for
gen4+ and one for gen2/3. Now the entire thing is again almost
readable ...

Spurred by checkpatch freaking out about a Ville's pipeconfig rework
in intel_panel.c

Otherwise just two lines that needed appropriate breaking.

Not functional change in this patch.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-17 09:25:07 +02:00
Ville Syrjälä 37327abdfb drm/i915: Add explicit pipe src size to pipe config
Rather that mess about with hdisplay/vdisplay from requested_mode, add
explicit pipe src size information to pipe config.

Now requested_mode is only really relevant for dvo/sdvo output timings.
For everything else either adjusted_mode or pipe src size should be
used.

In many places where we end up using pipe source size, we should
actually use the primary plane size, but we don't currently store
that information explicitly. As long as we treat primaries as full
screen only, we can get away with this. Eventually when we move
primaries over to drm_plane, we need to fix it all up.

v2: Add a comment to explain what pipe_src_{w,h} are
    Add a note about primary planes to commit message

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>
2013-09-16 23:36:49 +02:00
Ville Syrjälä a748214542 drm/i915: Use adjusted_mode in DSI PLL calculations
adjusted_mode contains our real timings, not requested_mode. Use the
correct thing in DSI PLL code.

Also constify adjusted_mode since we don't change it.

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>
2013-09-16 23:36:38 +02:00
Ville Syrjälä ba44f72073 drm/i915: Use pipe config in sprite code
Rather than dig up the pipe source size from crtc->mode, use
intel_crtc->config.requested_mode.

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>
2013-09-16 23:35:18 +02:00
Ville Syrjälä 20ddf66504 drm/i915: Make intel_crtc_active() available outside intel_pm.c
Move intel_crtc_active() to intel_display.c and make it available
elsewhere as well.

intel_edp_psr_match_conditions() already has one open coded copy,
so replace that one with a call to intel_crtc_active().

v2: Copy paste a big comment from danvet's mail explaining
    when we can ditch the extra checks

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>
2013-09-16 23:34:56 +02:00
Ville Syrjälä ca73b4f026 drm/i915: Use adjusted_mode when checking conditions for PSR
intel_edp_psr_match_conditions() currently looks at crtc->mode
when it really needs to look at adjusted_mode. Fix it.

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>
2013-09-16 23:33:24 +02:00
Ville Syrjälä 4af67d41c8 drm/i915: Check the clock from adjusted mode in intel_crtc_active()
The clock in crtc->mode doesn't necessarily mean anything. Let's look
at the clock in adjusted_mode instead.

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>
2013-09-16 23:33:08 +02:00
Ville Syrjälä 4fe8590a92 drm/i915: Use adjusted_mode appropriately when computing watermarks
Currently most of the watermark code looks at crtc->mode which is the
user requested mode. The only piece of information there that is
relevant is hdisplay, the rest must come from adjusted_mode. Convert
all of the code to use requested_mode and adjusted_mode from
pipe config appropriately.

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>
2013-09-16 23:32:31 +02:00
Ville Syrjälä ef644fdac1 drm/i915: Use adjusted_mode in intel_update_fbc()
Check the mode flags from the adjusted_mode, not user requested mode.
The hdisplay/vdisplay check actually checkes the primary plane size,
so those still need to come from the user requested mode.

Extract both modes from pipe config instead of the drm_crtc.

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>
2013-09-16 23:22:26 +02:00
Ville Syrjälä d68e7c3c7f drm/i915: Use adjusted_mode in HDMI 12bpc clock check
The pixel clock should come from adjusted_mode not requested_mode.
In this case the two should be the same as we don't currently
overwrite the clock in the case of HDMI. But let's make the code
safe against such things happening in the future.

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>
2013-09-16 23:22:10 +02:00
Ville Syrjälä 12d7ceed52 drm/i915: Use adjusted_mode->clock in lpt_program_iclkip
lpt_program_iclkip() wants to know the pixel clock. It should get that
information from adjusted_mode, not crtc->mode.

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>
2013-09-16 23:21:07 +02:00
Ville Syrjälä a2b076b6e4 drm/i915: Grab the pixel clock from adjusted_mode not requested_mode
i9xx_set_pipeconf() attempts to get the current pixel clock from
requested_mode. requested_mode.clock may be totally bogus, so the
clock should come from adjusted_mode.

v2: Dropped the intel_compute_config() hunk due to killing of the
    INTEL_FDI_FREQ check

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>
2013-09-16 23:18:50 +02:00
Ville Syrjälä d71b8d4a74 drm/i915: Add fuzzy clock check for port_clock
Check and dump for port_clock.

v2: Also dump port_clock

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 23:01:50 +02:00
Ville Syrjälä 5e550656d9 drm/i915: Add PIPE_CONF_CHECK_CLOCK_FUZZY()
Add a new pipe config check macro PIPE_CONF_CHECK_CLOCK_FUZZY() to make
it trivial and error proof to compare clocks in a fuzzy manner.

v2: Drop extra curly braces

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 23:01:44 +02:00
Ville Syrjälä 18442d0878 drm/i915: Fix port_clock and adjusted_mode.clock readout all over
Now that adjusted_mode.clock no longer contains the pixel_multiplier, we
can kill the get_clock() callback and instead do the clock readout
in get_pipe_config().

Also i9xx_crtc_clock_get() can now extract the frequency of the PCH
DPLL, so use it to populate port_clock accurately for PCH encoders.
For DP in port A the encoder is still responsible for filling in
port_clock. The FDI adjusted_mode.clock extraction is kept in place
for some extra sanity checking, but we no longer need to pretend it's
also the port_clock.

In the encoder get_config() functions fill out adjusted_mode.clock
based on port_clock and other details such as the DP M/N values,
HDMI 12bpc and SDVO pixel_multiplier. For PCH encoders we will then
do an extra sanity check to make sure the dotclock we derived from
the FDI configuratiuon matches the one we derive from port_clock.

DVO doesn't exist on PCH platforms, so it doesn't need to anything
but assign adjusted_mode.clock=port_clock. And DDI is HSW only, so
none of the changes apply there.

v2: Use hdmi_reg color format to detect 12bpc HDMI case
v3: Set adjusted_mode.clock for LVDS too
v4: Rename ironlake_crtc_clock_get to ironlake_pch_clock_get,
    eliminate the useless link_freq variable.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 22:59:38 +02:00
Ville Syrjälä da4a1efab8 drm/i915: Make i9xx_crtc_clock_get() work for PCH DPLLs
Add the 120MHz refernce clock case for PCH DPLLs.

Also determine the reference clock frequency more accurately by
checking for the PLLB_REF_INPUT_SPREADSPECTRUMIN refclk input
mode. The gen2 code already checked it, but it stil assumed a
fixed 66MHz refclk. Instead we need to consult the VBT for the
real value.

v2: Fix refclk for SSC panel case

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 22:43:46 +02:00
Ville Syrjälä 293623f7aa drm/i915: Make i9xx_crtc_clock_get() use dpll_hw_state
We already extract the DPLL state to pipe_config, so let's make use of
it in i9xx_crtc_clock_get() and avoid the register reads.

This will also make the function closer to being useable with PCH DPLL
since the registers for those live in a different address.

Also kill the useless adjusted_mode.clock zeroing. It's already zero at
this point.

v2: Read out DPLL state in intel_crtc_mode_get()

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 22:42:00 +02:00
Ville Syrjälä 6878da0500 drm/i915: Add intel_dotclock_calculate()
Extract the code to calculate the dotclock from the link clock and M/N
values into a new function from ironlake_crtc_clock_get().

The new function can be used to calculate the dotclock for both FDI and
DP cases.

Also simplify the code a bit along the way.

v2: Don't forget about non-pch encoders in ironlake_crtc_clock_get()

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-16 22:38:51 +02:00
Paulo Zanoni 794a79a6b0 drm/i915: clear opregon->lid_state after we unmap it
We don't seem to be using the pointer after it's unmapped, so this
patch doesn't fix any bug I can reproduce.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 16:06:01 +02:00
Jani Nikula 93ce0ba698 drm/i915: add asserts for cursor disabled
The cursor is supposed to be disabled during crtc mode set (disabled by
ctrc disable). Assert this is the case.

v2: move cursor disabled assert next to plane asserts (Ville)

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:58:09 +02:00
Ben Widawsky 33618ea5e0 drm/i915: Fix l3 parity user buffer offset
The buf pointer used during l3_write is just char *, therefore it does
not require the silly any addition of offset.

v2: Also fix i915_l3_read with a suggested logic from Ville

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:56:15 +02:00
Ben Widawsky 1c3dcd1cf6 drm/i915: Round l3 parity reads down
We always read a register for l3 parity reads, and we don't really want
to ever let userspace trick us into giving back less than the dword.

Writes are okay because we assume everything will be 0 filled, and as
such, if a user really wants to write less than a dword, let them.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:55:55 +02:00
Ben Widawsky 472f8acc4d drm/i915: Remove extra "ring"
Sadly, this isn't the first time we've done this:
http://lists.freedesktop.org/archives/intel-gfx/2013-June/029065.html

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:55:24 +02:00
Ville Syrjälä 3bd26263a9 drm/i915: Make intel_fuzzy_clock_check() take in arbitrary clocks
We want to do fuzzy clock checks for other things besides
adjusted_mode.clock, so just pass two two clocks to compare
to intel_fuzzy_clock_check().

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:54:22 +02:00
Ville Syrjälä eb14cb747b drm/i915: Add state readout and checking for has_dp_encoder and dp_m_n
Add functions to read out the CPU and PCH transcoder M/N values,
and use them to fill out the pipe config dp_m_n information. And
while at it populate has_dp_encoder too.

Also refactor ironlake_get_fdi_m_n_config() to simply call the new
intel_cpu_transcoder_get_m_n() function.

v2: Remember the DDI

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:53:21 +02:00
Ville Syrjälä 42571aefaf drm/i915: Add support for pipe_bpp readout
On CTG+ read out the pipe bpp setting from hardware and fill it into
pipe config. Also check it appropriately.

v2: Don't do the pipe_bpp extraction inside the PCH only code block on
    ILK+.
    Avoid the PIPECONF read as we already have read it for the
    PIPECONF_EANBLE check.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:52:16 +02:00
Ville Syrjälä 3c52f4eb93 drm/i915: Make adjusted_mode.clock non-pixel multiplied
It would be easier if adjusted_mode.clock would be the pipe pixel clock,
and it actually is, except for the cases where pixel_multiplier > 1.

So let's change intel_sdvo to use port_clock as the multiplied clock,
and then we can leave adjusted_mode.clock as pipe pixel clock.

v2: Improve port_clock documentation
    Rebased on top of SDVO pixel_multiplier fixes

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:52:00 +02:00
Ville Syrjälä 1041a02f35 drm/i915: Don't factor in pixel multplier when deriving dotclock from link clock and M/N values
We feed the non-multiplied clock to intel_link_compute_m_n(), so the
opposite operation should use the same order of operations. So we just
multiply by pixel_multiplier in the end now.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 14:51:07 +02:00
Paulo Zanoni 8e8f8aec2a drm/i915: don't save/restore LBB on Gen5+
Because this PCI config register doesn't exist on Gen5+.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 11:40:45 +02:00
Paulo Zanoni 9d49c0ef40 drm/i915: move more code to __i915_drm_thaw
Both callers had code to sanitize the uncore and restore the GTT
mappings just before calling __i915_drm_thaw, so Chris suggested I
should unify the code.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-13 11:40:19 +02:00
Ben Widawsky 68c8c17f52 drm/i915: evict VM instead of everything
When reserving objects during execbuf, it is possible to come across an
object which will not fit given the current fragmentation of the address
space. We do not have any defragment in drm_mm, so the strategy is to
instead evict everything, and reallocate objects.

With the upcoming addition of multiple VMs, there is no point to evict
everything since doing so is overkill for the specific case mentioned
above.

Recommended-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: One additional s/evict_everything/evict_vm/ to update a
comment in the code.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-12 21:58:22 +02:00
Ben Widawsky 7b7961220f drm/i915: Extract vm specific part of eviction
As we'll see in the next patch, being able to evict for just 1 VM is
handy.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-12 21:58:22 +02:00
Ben Widawsky 23f5448398 drm/i915: Synchronize pread/pwrite with wait_rendering
lifted from Daniel:
pread/pwrite isn't about the object's domain at all, but purely about
synchronizing for outstanding rendering. Replacing the call to
set_to_gtt_domain with a wait_rendering would imo improve code
readability. Furthermore we could pimp pread to only block for
outstanding writes and not for reads.

Since you're not the first one to trip over this: Can I volunteer you
for a follow-up patch to fix this?

v2: Switch the pwrite patch to use \!read_only. This was a typo in the
original code. (Chris, Daniel)

Recommended-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Fix up the logic fumble - wait_rendering has a bool readonly
paramater, set_to_gtt_domain otoh has bool write. Breakage reported by
Jani Nikula, I've double-checked that igt/gem_concurrent_blt/prw-*
would have caught this.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-12 21:56:52 +02:00
Jesse Barnes 6c4a8962a4 drm/i915/vlv: re-enable hotplug detect based probing on VLV/BYT
Fixed with

commit 10603caacf
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Aug 26 19:51:06 2013 -0300

    drm/i915: Apply the force-detect VGA w/a to Valleyview

Signed-off-by: Jesse Barnes <jbarnes@virtuosugeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-11 00:11:48 +02:00
Ville Syrjälä a666283e90 drm/i915: Fix HSW sync flags to use pipe config adjusted_mode
intel_ddi_enable_transcoder_func() picked the sync flags from crtc->mode
instead of the pipe config adjusted_mode. Fix the problem and hopefully
rid my HSW machine of the remaining pipe config warnings.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 17:06:04 +02:00
Chris Wilson 5a1d5eb020 drm/i915: Remove the double-list iteration from bound_any()
The purpose of the function is to find out whether the object is still
bound in any address space. This can be easily checked by looking at the
vma currently associated with the object, rather than asking if any of
the global address spaces have an active vma on the object.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 16:14:06 +02:00
Chris Wilson 092467327c drm/i915: Write RING_TAIL once per-request
Ignoring the legacy DRI1 code, and a couple of special cases (to be
discussed later), all access to the ring is mediated through requests.
The first write to a ring will grab a seqno and mark the ring as having
an outstanding_lazy_request. Either through explicitly adding a request
after an execbuffer or through an implicit wait (either by the CPU or by
a semaphore), that sequence of writes will be terminated with a request.
So we can ellide all the intervening writes to the tail register and
send the entire command stream to the GPU at once. This will reduce the
number of *serialising* writes to the tail register by a factor or 3-5
times (depending upon architecture and number of workarounds, context
switches, etc involved). This becomes even more noticeable when the
register write is overloaded with a number of debugging tools. The
astute reader will wonder if it is then possible to overflow the ring
with a single command. It is not. When we start a command sequence to
the ring, we check for available space and issue a wait in case we have
not. The ring wait will in this case be forced to flush the outstanding
register write and then poll the ACTHD for sufficient space to continue.

The exception to the rule where everything is inside a request are a few
initialisation cases where we may want to write GPU commands via the CS
before userspace wakes up and page flips.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 15:35:58 +02:00
Ville Syrjälä ad0d6dc485 drm/i915: Refactor max WM level
Pull the expected max WM level determinations out to a separate
function. Will have another user soon.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 11:17:19 +02:00
Ville Syrjälä 8de123a5d8 drm/i915: Use ilk_compute_wm_level to compute WM_PIPE values
Unify the code a bit to use ilk_compute_wm_level for all watermark
levels.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 11:16:59 +02:00
Ville Syrjälä ac830fe1c3 drm/i915: Constify some watermark data
hsw_pipe_wm_parameters and hsw_wm_maximums typically are read only. Make
them const.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 11:16:38 +02:00
Ville Syrjälä f37fcc2a26 drm/i915: Call intel_update_watermarks() in specific place during modeset
Make the call to intel_update_watermarks() just once or twice during
modeset. Ideally it should happen independently when each plane gets
enabled/disabled, but for now it seems better to keep it in central
place. We can improve things when we get all the planes sorted out
in a better way.

When enabling set up the watermarks just before the pipe is enabled.
And when disabling we need to wait until we've marked the crtc as
inactive, as otherwise intel_crtc_active() would still think the pipe
is enabled and the computed watermarks would reflect that.

v2: Pimp up the commit message a bit

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 11:15:47 +02:00
Ville Syrjälä 46ba614c00 drm/i915: Pass crtc to intel_update_watermarks()
Passing the appropriate crtc to intel_update_watermarks() should help
in avoiding needless work in the future.

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

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-10 11:15:39 +02:00
Mika Kuoppala da66146425 drm/i915: include hangcheck action and score in error_state
Score and action reveals what all the rings were doing
and why hang was declared. Add idle state so that
we can distinguish between waiting and idle ring.

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

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 17:56:17 +02:00
Mika Kuoppala be62acb4cc drm/i915: ban badly behaving contexts
Now when we have mechanism in place to track which context
was guilty of hanging the gpu, it is possible to punish
for bad behaviour.

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

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

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

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

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

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

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 17:55:50 +02:00
Jani Nikula bf13e81b90 drm/i915: add support for per-pipe power sequencing on vlv
VLV has per-pipe PP registers. Set up power sequencing on mode set. The
connector init time setup is problematic, since we don't have a pipe at
that time. Cook up something.

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

v3: make checkpatch happier

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[danvet: Make checkpatch a bit more happier still ...]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 10:49:34 +02:00
Jani Nikula a24c144cc9 drm/i915: clean up power sequencing register port select definitions
Remove duplicates, add VLV specific macros for port B and C.

v2: also add PANEL_PORT_SELECT_DPC_VLV for clarity (Ville)

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 10:47:10 +02:00
Jani Nikula 828f5c6e1a drm/i915: move backlight enable later in vlv enable sequence
Follow-up to
commit 5004945f1d
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Tue Jul 30 12:20:32 2013 +0300

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

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

Reference: http://mid.gmane.org/CAKMK7uFs9EMvMW8BnS24e5UNm1D7JrfVg3SD5SDFtVEamGfOOg@mail.gmail.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 10:46:11 +02:00
Jani Nikula ecff4f3baf drm/i915: name intel dp hooks per platform
In line with the rest of the code base. No functional changes.

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

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-06 10:44:58 +02:00
Damien Lespiau ce1424078b drm/i915: Remove unused mode_fixup() vfunc of struct intel_dvo_dev_ops
It's totally unused, so remove the last mode_fixup appearance in i915.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-09-05 21:39:59 +02:00