openwrt/staging/blogic.git
12 years agodrm/i915: use CPU and PCH transcoders on lpt_enable_pch_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:47 +0000 (18:12 -0200)]
drm/i915: use CPU and PCH transcoders on lpt_enable_pch_transcoder

... instead of using "pipe". As already explained in previous commits,
since Haswell/LPT cpu_transcoder, pch_transcoder and pipe are not the
same thing.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't assert_pch_pll_enabled on lpt_enable_pch_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:46 +0000 (18:12 -0200)]
drm/i915: don't assert_pch_pll_enabled on lpt_enable_pch_transcoder

These asserts are specific to IBX/CPT/PPT. Inside the assert_pch_pll
function we even "return" in case we detect LPT, but I prefer to just
not call it. In the future we might rename to something like
ibx_assert_pch_pll.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove IBX code from lpt_enable_pch_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:45 +0000 (18:12 -0200)]
drm/i915: remove IBX code from lpt_enable_pch_transcoder

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove Haswell code from ironlake_enable_pch_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:44 +0000 (18:12 -0200)]
drm/i915: remove Haswell code from ironlake_enable_pch_transcoder

Since now we have lpt_enable_pch_transcoder.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: fork lpt version of ironlake_{en, dis}able_pch_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:43 +0000 (18:12 -0200)]
drm/i915: fork lpt version of ironlake_{en, dis}able_pch_transcoder

For now the new functions are just copies. Differences will be added
later.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: rename intel_{en, dis}able_transcoder
Paulo Zanoni [Wed, 31 Oct 2012 20:12:42 +0000 (18:12 -0200)]
drm/i915: rename intel_{en, dis}able_transcoder

To ironlake_{en,dis}able_pch_transcoder since these functions will be
different on Haswell/LPT and since the "transcoder" they {en,dis}able
is on the PCH.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: again a small conflict because the fdi disable sequenc looks
a bit different here.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: use the CPU and PCH transcoders on lpt_pch_enable
Paulo Zanoni [Wed, 31 Oct 2012 20:12:41 +0000 (18:12 -0200)]
drm/i915: use the CPU and PCH transcoders on lpt_pch_enable

On Haswell/LPT, pipe, cpu_transcoder and pch_transcoder are different
things with different values, unlinke the previous gens. So here we
use the right thing at the right place.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
[danvet: apply the patch by hand due to the reorder patch sequence. We
also can't kill all uses of pipe where we should, since the fdi link
train code isn't fixed up yet on this baselin.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't assert_panel_unlocked on LPT
Paulo Zanoni [Wed, 31 Oct 2012 20:12:40 +0000 (18:12 -0200)]
drm/i915: don't assert_panel_unlocked on LPT

There is no LVDS, so don't poke the LVDS registers.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't call ironlake_enable_pch_pll on lpt_pch_enable
Paulo Zanoni [Wed, 31 Oct 2012 20:12:39 +0000 (18:12 -0200)]
drm/i915: don't call ironlake_enable_pch_pll on lpt_pch_enable

This is just wrong. The lpt_program_iclkip should disable the PCH
pixel clocks (and yes, we plan to rename it later).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: rename intel_enable_pch_pll to ironlake_enable_pch_pll
Paulo Zanoni [Wed, 31 Oct 2012 20:12:38 +0000 (18:12 -0200)]
drm/i915: rename intel_enable_pch_pll to ironlake_enable_pch_pll

Because this function is only for the older PCHs, not the newer ones.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove ironlake bits from lpt_pch_enable
Paulo Zanoni [Wed, 31 Oct 2012 20:12:24 +0000 (18:12 -0200)]
drm/i915: remove ironlake bits from lpt_pch_enable

Since this function will only run on Haswell/LPT and newer.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove Haswell/LPT bits from ironlake_pch_enable
Paulo Zanoni [Wed, 31 Oct 2012 20:12:23 +0000 (18:12 -0200)]
drm/i915: remove Haswell/LPT bits from ironlake_pch_enable

Since now we have lpt_pch_enable for them.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add lpt_pch_enable
Paulo Zanoni [Wed, 31 Oct 2012 20:12:22 +0000 (18:12 -0200)]
drm/i915: add lpt_pch_enable

For now it's just a fork of ironlake_pch_enable. The next commits will
change this.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: use intel_ddi_get_hw_state on CRT encoder too
Paulo Zanoni [Wed, 31 Oct 2012 20:12:21 +0000 (18:12 -0200)]
drm/i915: use intel_ddi_get_hw_state on CRT encoder too

Because things changed on Haswell/LPT and the bits checked by
intel_crt_get_hw_state have moved to other registers.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: don't set ADPA pipe select on LPT
Paulo Zanoni [Wed, 31 Oct 2012 20:12:20 +0000 (18:12 -0200)]
drm/i915: don't set ADPA pipe select on LPT

Those bits just don't exist on LPT. The CRT DAC, PCH transcoder and
FDI RX are always connected to DDI E.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: move encoder->mode_set calls to crtc_mode_set
Daniel Vetter [Wed, 31 Oct 2012 18:26:13 +0000 (19:26 +0100)]
drm/i915: move encoder->mode_set calls to crtc_mode_set

Makes more sense to group the entire mode_set stage into one function.
Noticed while discussiing the rather confusing set of function names
with Paulo Zanoni. Unfortunately I don't have an idea to make the
function names lesss confusion.

v2: Use for_each_encoder_on_crtc as suggested by Chris Wilson.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Introduce intel_crtc_update_sarea_pos()
Ville Syrjälä [Wed, 31 Oct 2012 15:50:24 +0000 (17:50 +0200)]
drm/i915: Introduce intel_crtc_update_sarea_pos()

Refactor the code that stores the panning x/y position into the sarea.

This also changes the code so that it won't mistakenly update
sareaB_x/y for pipe >= C.

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>
12 years agodrm/i915: Bad pixel formats can't reach the sprite code
Ville Syrjälä [Wed, 31 Oct 2012 15:50:21 +0000 (17:50 +0200)]
drm/i915: Bad pixel formats can't reach the sprite code

The framebuffer pixel format is already checked by the common code.
So there's no way an invalid format could reach the driver. So instead
of falling back to a default format, call BUG().

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>
12 years agodrm/i915: pixel_size == cpp
Ville Syrjälä [Wed, 31 Oct 2012 15:50:20 +0000 (17:50 +0200)]
drm/i915: pixel_size == cpp

Use drm_format_plane_cpp() to get 'pixel_size' in the sprite code.

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>
12 years agodrm/i915: Check the framebuffer offset
Ville Syrjälä [Wed, 31 Oct 2012 15:50:19 +0000 (17:50 +0200)]
drm/i915: Check the framebuffer offset

The current code can't deal with framebuffers with an offset. Return an
error when trying to create such a framebuffer until the rest of the
code is fixed to handle them.

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>
12 years agodrm/i915: Check framebuffer stride more thoroughly
Ville Syrjälä [Wed, 31 Oct 2012 15:50:18 +0000 (17:50 +0200)]
drm/i915: Check framebuffer stride more thoroughly

Make sure the the framebuffer stride is smaller than 32k. That
seems to be the limit on recent hardware. Not quite sure if
<=Gen4 has smaller limits.

Also when using a tiled memory make sure the object stride matches
the framebuffer stride.

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>
12 years agodrm/i915: Fix display pixel format handling
Ville Syrjälä [Wed, 31 Oct 2012 15:50:14 +0000 (17:50 +0200)]
drm/i915: Fix display pixel format handling

Fix support for all RGB/BGR pixel formats (except the 16:16:16:16 float
format).

Fix intel_init_framebuffer() to match hardware and driver limitations:
* RGB332 is not supported at all
* CI8 is supported
* XRGB1555 & co. are supported on Gen3 and earlier
* XRGB210101010 & co. are supported from Gen4 onwards
* BGR formats are supported from Gen4 onwards
* YUV formats are supported from Gen5 onwards (driver limitation)

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>
12 years agodrm/i915: move more pte encoding to pte encode
Ben Widawsky [Fri, 19 Oct 2012 16:33:22 +0000 (09:33 -0700)]
drm/i915: move more pte encoding to pte encode

In order to handle differences in pte encoding between architectures it
is desirable to have one helper function, pte_encode, do it all for us.
As such, this commit moves the code around so we're in good shape to do
that.

Luckily the ppgtt pte and the ggtt pte look very similar.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Extract PPGTT pte encoding
Ben Widawsky [Mon, 24 Sep 2012 23:44:32 +0000 (16:44 -0700)]
drm/i915: Extract PPGTT pte encoding

HSW will change the PTE encoding, and laying this out now will be
helpful when we're ready to implement that. More importantly, GGTT and
PPGTT PTE encoding is quite similar, so moving this out into a helper
function will enable us to lance the AGP layer.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: introduce gtt_pte_t
Ben Widawsky [Mon, 22 Oct 2012 18:44:43 +0000 (11:44 -0700)]
drm/i915: introduce gtt_pte_t

This will make the calculations of size easier to read instead of just
assuming uint32_t everywhere.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Add dev to ppgtt
Ben Widawsky [Mon, 24 Sep 2012 15:55:51 +0000 (08:55 -0700)]
drm/i915: Add dev to ppgtt

Some subsequent commits will need to know what generation we're running
on to do different pte encoding for the ppgtt. Since it's not much
hassle or overhead to store it in the ppgtt structure, do that.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: No LLC_MLC for HSW.
Ben Widawsky [Fri, 21 Sep 2012 23:54:14 +0000 (16:54 -0700)]
drm/i915: No LLC_MLC for HSW.

The mid-level cache or as it's more commonly referred to now as L3, is
not setup this way on HSW.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/ringbuffer: exclude last 2 cachelines on 845g on all callpaths
Mika Kuoppala [Mon, 29 Oct 2012 14:59:26 +0000 (16:59 +0200)]
drm/i915/ringbuffer: exclude last 2 cachelines on 845g on all callpaths

Make intel_render_ring_init_dri and intel_init_ring_buffer symmetrical
with regards of workaround introduced by:

commit 27c1cbd06a7620b354cbb363834f3bb8df4f410d
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Mon Apr 9 13:59:46 2012 +0100

    drm/i915/ringbuffer: Exclude last 2 cachlines of ring on 845g

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: create the DDI encoder
Paulo Zanoni [Fri, 26 Oct 2012 21:05:52 +0000 (19:05 -0200)]
drm/i915: create the DDI encoder

Now intel_ddi_init is just like intel_hdmi_init and intel_dp_init: it
inits the encoder and then calls the proper init_connector functions.
Notice that for non-eDP ports we call both HDMI and DP connector init,
so we have 2 connectors attached to each DDI encoder.

After this change, intel_hdmi_init and intel_dp_init are only called
by Ivy Bridge and earlier, while hardware containing DDI outputs
should call intel_ddi_init.

Also added/removed quite a few "static" keywords due to the fact that
some function pointers were moved from intel_dp.c and intel_hdmi.c to
intel_ddi.c.

DP finally works on Haswell now! \o/

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>
12 years agodrm/i915: add intel_ddi_connector_get_hw_state
Paulo Zanoni [Fri, 26 Oct 2012 21:05:51 +0000 (19:05 -0200)]
drm/i915: add intel_ddi_connector_get_hw_state

We need this since now on DDI we will have 2 connectors on each
encoder.

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>
12 years agodrm/i915: add port field to intel_digital_port
Paulo Zanoni [Fri, 26 Oct 2012 21:05:50 +0000 (19:05 -0200)]
drm/i915: add port field to intel_digital_port

Both "intel_dp" and "intel_hdmi" structs had a "port" field, which
always had the same value. It makes more sense to move this to
intel_digital_port, so we can know the port independently of the
connector type.

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>
12 years agodrm/i915: reset intel_encoder->type when DP or HDMI is detected
Paulo Zanoni [Fri, 26 Oct 2012 21:05:49 +0000 (19:05 -0200)]
drm/i915: reset intel_encoder->type when DP or HDMI is detected

When intel_hdmi_detect detects a monitor, set intel_encoder->type with
INTEL_OUTPUT_HDMI. Same for DP.

This should not break the current code because these variables never
change. This will be used after we create the DDI encoder because it
will have both DP and HDMI connectors.

We won't support eDP+HDMI on the same port, so if an encoder is eDP we
should expect it to always remain eDP and never change.

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>
12 years agodrm/i915: split intel_dp_init into encoder and connector pieces
Paulo Zanoni [Fri, 26 Oct 2012 21:05:48 +0000 (19:05 -0200)]
drm/i915: split intel_dp_init into encoder and connector pieces

Same reason as the previous HDMI commit: the DDI code will have its
own encoder init function but still use the DP and HDMI connectors.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: kill the unnecessarily added line that Damien spotted in
review.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: split intel_hdmi_init into encoder and connector pieces
Paulo Zanoni [Fri, 26 Oct 2012 21:05:47 +0000 (19:05 -0200)]
drm/i915: split intel_hdmi_init into encoder and connector pieces

We want to split the HDMI connector and encoder initialization because
in the future the DDI code will have its own "encoder init" function,
but it will still call intel_hdmi_init_connector. The DDI encoder will
actually have two connectors attached to it: HDMI and DP.

The best way to look at this patch is to imagine that we're renaming
intel_hdmi_init to intel_hdmi_init_connector and removing the
encoder-specific pieces and placing them into intel_hdmi_init.

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>
12 years agodrm/i915: create intel_digital_port and use it
Paulo Zanoni [Fri, 26 Oct 2012 21:05:46 +0000 (19:05 -0200)]
drm/i915: create intel_digital_port and use it

The goal is to have one single encoder capable of controlling both DP
and HDMI outputs. This patch just adds the initial infrastructure, no
functional changes.

Previously, both intel_dp and intel_hdmi were intel_encoders. Now,
these 2 structs do not have intel_encoder as members anymore. The new
struct intel_digital_port has intel_encoder as a member, and it also
includes intel_dp and intel_hdmi as members. In other words: see the
changes inside intel_drv.h: it's the most important change, everything
else is only to make it compile and work.

For now, each intel_digital_port is still only able to control one of
HDMI or DP, but not both together.

In the future we should also try to merge the common fields from
intel_dp and intel_hdmi (e.g., port).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Add the missing ' ' spotted by Damien Lespiau.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add intel_dp_to_dev and intel_hdmi_to_dev
Paulo Zanoni [Fri, 26 Oct 2012 21:05:45 +0000 (19:05 -0200)]
drm/i915: add intel_dp_to_dev and intel_hdmi_to_dev

When we add struct intel_digital_port, there will be no direct way of
going from intel_{dp,hdmi} to drm_device: we will need to call
container_of().

This patch adds functions to go from intel_{dp,hdmi} to drm_device.
The main goal here is to greatly reduce the size of the next patch,
where we will change the implementation of the functions we just
added here (among other things).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: simplify assignments inside intel_dp.c
Paulo Zanoni [Fri, 26 Oct 2012 21:05:44 +0000 (19:05 -0200)]
drm/i915: simplify assignments inside intel_dp.c

 - Replace container_of with enc_to_intel_dp.
 - Walk through less structures when making assignments.
 - Rename some variables to keep our naming standards.

As a bonus, this will reduce the usage of "struct intel_dp", making
the future patch that introduces intel_digital_port smaller and easier
to review.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fix HSW power well control state read
Zhenyu Wang [Tue, 30 Oct 2012 11:16:34 +0000 (19:16 +0800)]
drm/i915: Fix HSW power well control state read

Fix power well control state by reading real register offset.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Flush using only the correct base address register
Damien Lespiau [Mon, 29 Oct 2012 15:24:49 +0000 (15:24 +0000)]
drm/i915: Flush using only the correct base address register

We were writing DSP_ADDR and DSP_SURF unconditionally. This did not
trigger an unclaimed write before HSW as the address of DSP_ADDR has
been repurposed as DSP_LINOFF.

On HSW, though, DSP_LINOFF has been removed and then writting to it
triggers an unclaimed write.

This patch writes to DSP_ADDR or DSP_SURF to flush the display plane
configuration depending on the gen we're running on.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: implement WaDisableRenderCachePipelinedFlush
Daniel Vetter [Thu, 18 Oct 2012 09:49:51 +0000 (11:49 +0200)]
drm/i915: implement WaDisableRenderCachePipelinedFlush

Comment says for eaglelake/cantiga, but it's listed in the ilk table,
too. So apply it to both.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: implement WaIssueDummyWriteToWakeupFromRC6
Daniel Vetter [Thu, 18 Oct 2012 12:16:09 +0000 (14:16 +0200)]
drm/i915: implement WaIssueDummyWriteToWakeupFromRC6

Or at least our best understanding of it.

v2: Fixup commit message and put the wa name into the comment block.
And actually update the commit, too.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: adjust sprite base address
Damien Lespiau [Fri, 26 Oct 2012 17:20:12 +0000 (18:20 +0100)]
drm/i915: adjust sprite base address

Just like in:

commit c2c75131244507c93f812862fdbd4f3a37139401
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jul 5 12:17:30 2012 +0200

    drm/i915: adjust framebuffer base address on gen4+

but this time, for the sprite planes. This ensures that the
sprite offset are always inside the supported hardware limits since it
becomes the offset into a page and we adjust the base address to a page
boundary.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fix sprite offset on HSW
Damien Lespiau [Fri, 26 Oct 2012 17:20:11 +0000 (18:20 +0100)]
drm/i915: Fix sprite offset on HSW

HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
register.

v2: Remove a useless level of indentation (Paulo Zanoni)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Fix primary plane offset on HSW
Damien Lespiau [Mon, 29 Oct 2012 12:14:21 +0000 (12:14 +0000)]
drm/i915: Fix primary plane offset on HSW

Haswell consolidates DSP_TILEOFF and DSP_LINOFF into DSP_OFFSET (aka
PRI_OFFSET).

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Error out when trying to set a y-tiled as a sprite
Damien Lespiau [Mon, 29 Oct 2012 15:14:51 +0000 (15:14 +0000)]
drm/i915: Error out when trying to set a y-tiled as a sprite

v2: Use a switch for consistency (Chris Wilson)

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/tv: Use intel_flush_display_plane() to flush the primary plane
Damien Lespiau [Mon, 29 Oct 2012 15:25:35 +0000 (15:25 +0000)]
drm/i915/tv: Use intel_flush_display_plane() to flush the primary plane

Instead of writing to the DSP_ADDR ourselves. This will do the right
thing on gen >= 4 as well.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: check fdi B/C lane sharing constraint
Daniel Vetter [Sat, 27 Oct 2012 13:58:40 +0000 (15:58 +0200)]
drm/i915: check fdi B/C lane sharing constraint

And properly toggle the chicken bit in the pch to enable/disable fdi C
rx. If we don't set this bit correctly, the rx gets confused in link
training, which can result in an fdi link that silently fails to train
the link (since the corresponding register reports success). Note that
both fdi link B and C can suffer when this bit is not set correctly.

The code as-is has a few deficiencies:
- We presume all pipes use the pch which is not the case for cpu edp.
- We don't bother with disabling both pipes when we could make things
  work, e.g. when pipe B switched from 4 to 2 lanes due to a mode
  change, we don't bother updating the w/a bit.
- It's ugly.

All of these are because we compute ->fdi_lanes way too late, when
we're already setting up individual pipes. We need to have this
information in ->modeset_global_resources already, to set things up
correctly. But that is a much larger reorg of the code.

Note that we actually hit the 2 lanes limit in practice rather
quickly: Even though the 1920x1200 mode native mode of my screen fits
into 2 lanes, it needs 3 lanes for the 1920x1080 (since that somehow
has much more blanking ...). Not obeying this restriction seems to
results in cute-looking digital noise.

v2: Only ever clear the chicken bit when both pipes are off.

v3: Use the new ->modeset_global_resources callback.

v4: Move the WARNs to the right place. Oh how I hate hacks.

v5: Fix spelling, noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add ->display.modeset_global_resources callback
Daniel Vetter [Fri, 26 Oct 2012 08:58:18 +0000 (10:58 +0200)]
drm/i915: add ->display.modeset_global_resources callback

After all relevant pipes are disabled and after we've updated all the
state with the staged state, but before we call the per-crtc
->mode_set functions there's a very natural point to set up any
shared/global resources like
- shared plls (obviously only the setup, the enabling needs to be
  separately handling with a separate refcount)
- global watermark state like the DSPARB on gmch platforms
- workaround bits that depend upon the exact global output
  configuration
- enabling the right set of refclocks
- enabling/disabling manual power wells.

Now for a lot of these things we can't move them into this function
yet, most often because we only compute the required information in
the per-crtc ->mode_set callback. Which is too late. But due to a
bunch of reasons (check-only atomic modeset, fastboot&hw state checks,
...) we need to separate the computation of that state from the actual
hw frobbery anyway. So we can move things into this new callback step-
by-step.

Others can't be moved here (or implemented at all) because our code
lacks the smarts to properly update them. E.g. the DSPARB can only be
updated when all pipes are disabled, so if we decide to change it's
value, we need to disable _all_ pipes. The infrastructure for that is
already in place (with the various pipe masks that driver the modeset
logic). But again we need to move a few things out of ->mode_set
first before we can even implement the correct decision making.

In any case, we need to start somewhere, so let's start with the
callback: Some small follow-up patches will make immediate good use of
it.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: BUG on impossible pch dp port
Daniel Vetter [Fri, 26 Oct 2012 08:58:16 +0000 (10:58 +0200)]
drm/i915: BUG on impossible pch dp port

Since it is one. We need to move this code to encoder specific callbacks
eventually, to kill all that inversion of control ...

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: add comment about pch pll enabling rules
Daniel Vetter [Sat, 27 Oct 2012 16:46:14 +0000 (18:46 +0200)]
drm/i915: add comment about pch pll enabling rules

Atm we have a few funny issues where we enable/disable shared
pll clocks. To make it clear that we are not required to enable/
disable the pch plls together with the other pch resources (and
so should keep it running when it's used by another pipe in
a shared pll configuration) add a comment.

This note is lifted from "Graphics BSpec: vol4g North Display Engine
Registers [IVB], Display Mode Set Sequence", step 9.d. of the enable
sequence:

"Configure and enable PCH DPLL, wait for PCH DPLL warmup (Can be
done anytime before enabling PCH transcoder)."

Since fixing the pll sharing code to no longer disable shared plls
if they're still in use is more involved, let's just stick with the
comment for now.

v2: Make the comment in the code clearer, to address questions raised
by Paulo Zanoni in review.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: set FDI_RX_MISC to recommended values on CPT/PPT
Daniel Vetter [Fri, 26 Oct 2012 08:58:13 +0000 (10:58 +0200)]
drm/i915: set FDI_RX_MISC to recommended values on CPT/PPT

My machine here has the correct ones already, but better safe
than sorry. IBX has different settings for that register, and
on IBX the device defaults match the recommended values. Hence
I did not add the respective writes for IBX.

LPT needs the same settings, but that has been done already

commit 4acf518626cdad5bbf7aac9869bd4accbbfb4ad3
Author: Eugeni Dodonov <eugeni.dodonov@intel.com>
Date:   Wed Jul 4 20:15:16 2012 -0300

    drm/i915: program FDI_RX TP and FDI delays

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>
12 years agodrm/i915: clarify why we need to enable fdi plls so early
Daniel Vetter [Sat, 27 Oct 2012 13:50:28 +0000 (15:50 +0200)]
drm/i915: clarify why we need to enable fdi plls so early

For reference, see "Graphics BSpec: vol4g North Display Engine
Registers [IVB], Display Mode Set Sequence", step 4 of the enabling
sequence:

a. "Enable PCH FDI Receiver PLL, wait for warmup plus DMI latency
b. "Switch from Rawclk to PCDclk in FDI Receiver
c. "Enable CPU FDI Transmitter PLL, wait for warmup"

Cc: Paulo Zanoni <przanoni@gmail.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Write the FDI RX TU size reg at the right time
Daniel Vetter [Fri, 26 Oct 2012 08:58:12 +0000 (10:58 +0200)]
drm/i915: Write the FDI RX TU size reg at the right time

According to "Graphics BSpec: vol4g North Display Engine Registers [IVB],
Display Mode Set Sequence" We need to write the TU size register
of the fdi RX unit _before_ starting to train the link.

Note: The current code is actually correct as Paulo mentioned in
review, but it's a bit confusion since only the fdi rx/tx plls need to
be enabled before the cpu pipes/planes. Hence it's still a good idea
to move the TU_SIZE setting to the "right" spot in the sequence, to
better match Bspec.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: shut up spurious message in intel_dp_get_hw_state
Daniel Vetter [Fri, 26 Oct 2012 08:58:11 +0000 (10:58 +0200)]
drm/i915: shut up spurious message in intel_dp_get_hw_state

The debug message is only relevant on CPT/PPT PCH ports, so move
it into the correct if clause.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: pass adjusted_mode to intel_choose_pipe_bpp_dither(), again
Jani Nikula [Fri, 2 Nov 2012 08:19:55 +0000 (10:19 +0200)]
drm/i915: pass adjusted_mode to intel_choose_pipe_bpp_dither(), again

Daniel's backmerge

commit c2fb7916927e989ea424e61ce5fe617e54878827
Merge: 29de6ce 6f0c058
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Mon Oct 22 14:34:51 2012 +0200

    Merge tag 'v3.7-rc2' into drm-intel-next-queued

to solve conflicts blew up (either git or Daniel was trying to be too
clever for their own good; it's usually convenient to blame tools ;) and
caused the changes of

commit 0c96c65b48fba3ffe9822a554cbc0cd610765cd5
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Wed Sep 26 18:43:10 2012 +0300

    drm/i915: use adjusted_mode instead of mode for checking the 6bpc force flag

in ironlake_crtc_mode_set() to be dropped.

Fix the call in ironlake_crtc_mode_set() again, and while at it, also fix
the new, copy-pasted haswell_crtc_mode_set() to use adjusted_mode.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: change eDP default scaling mode to respect aspect ratio
Yuly Novikov [Fri, 26 Oct 2012 09:04:01 +0000 (12:04 +0300)]
drm/i915/dp: change eDP default scaling mode to respect aspect ratio

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
[Jani: ripped this change separate from the scaling mode change support]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: allow configuring eDP panel fitting scaling mode
Yuly Novikov [Fri, 26 Oct 2012 09:04:00 +0000 (12:04 +0300)]
drm/i915/dp: allow configuring eDP panel fitting scaling mode

LVDS allowed changing panel fitting scaling mode, while eDP didn't. Copied
relevant code from LVDS to eDP.

Signed-off-by: Yuly Novikov <ynovikov@chromium.org>
[Jani: use fitting mode in intel_panel, remove default mode change]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/lvds: move fitting mode from intel_lvds_connector to intel_panel
Jani Nikula [Fri, 26 Oct 2012 09:03:59 +0000 (12:03 +0300)]
drm/i915/lvds: move fitting mode from intel_lvds_connector to intel_panel

Prepare for supporting scaling mode configuration also in eDP.

Includes a drive-by-removal of an outdated comment about fitting mode.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: debug print all of the DPCD we have
Jani Nikula [Thu, 25 Oct 2012 07:58:10 +0000 (10:58 +0300)]
drm/i915: debug print all of the DPCD we have

At some point the DPCD size was increased, but the debug print not. While
at it, switch to using hex dump.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: VLV does not have a sprite scaler
Damien Lespiau [Thu, 25 Oct 2012 17:06:19 +0000 (18:06 +0100)]
drm/i915: VLV does not have a sprite scaler

Just like HSW, VLV does not have a sprite scale. Set
intel_plane->can_scale accordingly.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/sdvo: restore i2c adapter config on intel_sdvo_init() failures
Jani Nikula [Mon, 22 Oct 2012 13:12:18 +0000 (16:12 +0300)]
drm/i915/sdvo: restore i2c adapter config on intel_sdvo_init() failures

SDVOB may be multiplexed with HDMIB. If it's not SDVOB, the same i2c
adapter may be used for HDMIB, with the adjusted config (i.e. with GPIO
bit-banging instead of gmbus). Restore i2c adapter config before error
return from intel_sdvo_init(), letting HDMIB enjoy the joys of gmbus.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/sdvo: force GPIO bit-banging also on default pin
Jani Nikula [Mon, 22 Oct 2012 13:12:17 +0000 (16:12 +0300)]
drm/i915/sdvo: force GPIO bit-banging also on default pin

commit 63abf3edaf42d0b9f278df90fe41c7ed4796b6b1
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Dec 8 16:48:21 2010 +0000

    drm/i915/sdvo: Only use the SDVO pin if it is in the valid range

added a default fallback if BIOS provides an invalid pin mapping, but
failed to force GPIO bit-banging on it. Finish the job, and also clean up
the function a bit. With bit-banging, setting the gmbus speed has no
effect, so drop it.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Extend comment about gmbus in the code a bit.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: enable DDI eDP
Paulo Zanoni [Tue, 23 Oct 2012 20:30:08 +0000 (18:30 -0200)]
drm/i915: enable DDI eDP

Now that all the eDP enablement bits are there, we can actually try to
use the eDP.

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>
12 years agodrm/i915: turn the eDP DDI panel on/off
Paulo Zanoni [Tue, 23 Oct 2012 20:30:07 +0000 (18:30 -0200)]
drm/i915: turn the eDP DDI panel on/off

It's an important step :)

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>
12 years agodrm/i915: set/unset the DDI eDP backlight
Paulo Zanoni [Tue, 23 Oct 2012 20:30:06 +0000 (18:30 -0200)]
drm/i915: set/unset the DDI eDP backlight

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>
12 years agodrm/i915: set the correct eDP aux channel clock divider on DDI
Paulo Zanoni [Tue, 23 Oct 2012 20:30:05 +0000 (18:30 -0200)]
drm/i915: set the correct eDP aux channel clock divider on DDI

The cdclk frequency is not always the same, so the value here should
be adjusted to match it.

Version 2: call intel_ddi_get_cdclk_freq instead of reading
CDCLK_FREQ, because the register is just for earlier HW steppings.

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>
12 years agodrm/i915: select the correct pipe when using TRANSCODER_EDP
Paulo Zanoni [Tue, 23 Oct 2012 20:30:04 +0000 (18:30 -0200)]
drm/i915: select the correct pipe when using TRANSCODER_EDP

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>
12 years agodrm/i915: implement workaround for VTOTAL when using TRANSCODER_EDP
Paulo Zanoni [Wed, 24 Oct 2012 13:34:43 +0000 (11:34 -0200)]
drm/i915: implement workaround for VTOTAL when using TRANSCODER_EDP

See the documentation for the DDI_FUNC_CTL register, EDP Input Select
bits: when the EDP input selection is B, the VTOTAL_B must be
programmed with the VTOTAL_EDP value, same thing for selection C.

V2: Use I915_READ as suggested by Daniel Vetter.

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>
12 years agodrm/i915: convert pipe timing definitions to transcoder
Paulo Zanoni [Tue, 23 Oct 2012 20:30:02 +0000 (18:30 -0200)]
drm/i915: convert pipe timing definitions to transcoder

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>
12 years agodrm/i915: convert CPU M/N timings to transcoder
Paulo Zanoni [Tue, 23 Oct 2012 20:30:01 +0000 (18:30 -0200)]
drm/i915: convert CPU M/N timings to transcoder

Same thing as the previous commits. Not renaming this one since it
exists since way before Haswell.

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>
12 years agodrm/i915: convert PIPE_MSA_MISC to transcoder
Paulo Zanoni [Tue, 23 Oct 2012 20:30:00 +0000 (18:30 -0200)]
drm/i915: convert PIPE_MSA_MISC to transcoder

Same as the other registers. This one also appeared on Haswell for the
first time, so that's why we are renaming it.

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>
12 years agodrm/i915: convert PIPECONF to use transcoder instead of pipe
Paulo Zanoni [Tue, 23 Oct 2012 20:29:59 +0000 (18:29 -0200)]
drm/i915: convert PIPECONF to use transcoder instead of pipe

Because the PIPECONF register is actually part of the CPU transcoder,
not the CPU pipe.

Ideally we would also rename PIPECONF to TRANSCONF to remind people
that they should use the transcoder instead of the pipe, but let's
keep it like this for now since most Gens still name it PIPECONF.

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>
12 years agodrm/i915: check TRANSCODER_EDP on intel_modeset_setup_hw_state
Paulo Zanoni [Wed, 24 Oct 2012 18:09:25 +0000 (16:09 -0200)]
drm/i915: check TRANSCODER_EDP on intel_modeset_setup_hw_state

We need to check if any of the pipes is using TRANSCODER_EDP.

V2: DDI_BUF_CTL was renamed, so fix the usage here.

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>
12 years agodrm/i915: convert DDI_FUNC_CTL to transcoder
Paulo Zanoni [Wed, 24 Oct 2012 18:06:19 +0000 (16:06 -0200)]
drm/i915: convert DDI_FUNC_CTL to transcoder

Because there's one instance of the register per CPU transcoder and
not per CPU pipe. This is another register that appeared for the first
time on Haswell, and even though its Haswell name is
PIPE_DDI_FUNC_CTL, it will be renamed to TRANS_DDI_FUNC_CTL, so let's
just use the new naming scheme before it confuses more people.

Notice that there's a big improvement on intel_ddi_get_hw_state due to
the new TRANSCODER_EDP.

V2: Also rename the register to TRANS_DDI_FUNC_CTL as suggested by
Damien Lespiau.

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>
12 years agodrm/i915: convert PIPE_CLK_SEL to transcoder
Paulo Zanoni [Tue, 23 Oct 2012 20:29:56 +0000 (18:29 -0200)]
drm/i915: convert PIPE_CLK_SEL to transcoder

This register appeared in Haswell. It does not have an EDP version
because the EDP transcoder is always tied to the DDIA clock. Notice
that if we call PIPE_CLK_SEL(pipe) when pipe is PIPE_A and transcoder
is TRANSCODER_EDP we might introduce a bug, that's why this is a
transcoder register even though it does not have an EDP version.

Even though Haswell names this register PIPE_CLK_SEL, it will be
renamed to TRANS_CLK_SEL in the future, so let's just start using the
real name that makes more sense and avoids misusage.

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>
12 years agodrm/i915: add TRANSCODER_EDP
Paulo Zanoni [Wed, 24 Oct 2012 17:59:34 +0000 (15:59 -0200)]
drm/i915: add TRANSCODER_EDP

Before Haswell we used to have the CPU pipes and the PCH transcoders.
We had the same amount of pipes and transcoders, and there was a 1:1
mapping between them. After Haswell what we used to call CPU pipe was
split into CPU pipe and CPU transcoder. So now we have 3 CPU pipes (A,
B and C), 4 CPU transcoders (A, B, C and EDP) and 1 PCH transcoder
(only used for VGA).

For all the outputs except for EDP we have an 1:1 mapping on the CPU
pipes and CPU transcoders, so if you're using CPU pipe A you have to
use CPU transcoder A. When have an eDP output you have to use
transcoder EDP and you can attach this CPU transcoder to any of the 3
CPU pipes. When using VGA you need to select a pair of matching CPU
pipes/transcoders (A/A, B/B, C/C) and you also need to enable/use the
PCH transcoder.

For now we're just creating the cpu_transcoder definitions and setting
cpu_transcoder to TRANSCODER_EDP on DDI eDP code, but none of the
registers was ported to use transcoder instead of pipe. The goal is to
keep the code backwards-compatible since on all cases except when
using eDP we must have pipe == cpu_transcoder.

V2: Comment the haswell_crtc_off chunk, suggested by Damien Lespiau
and Daniel Vetter.

We currently need the haswell_crtc_off chunk because TRANSCODER_EDP
can be used by any CRTC, so when you stop using it you have to stop
saying you're using it, otherwise you may have at some point 2 CRTCs
claiming they're using TRANSCODER_EDP (a disabled CRTC and an enabled
one), then the HW state readout code will get completely confused.

In other words:

Imagine the following case:
  xrandr --output eDP1 --auto --crtc 0
  xrandr --output eDP1 --off
  xrandr --output eDP1 --auto --crtc 2

After the last command you could get a "pipe A assertion failure
(expected off, current on)" because CRTC 0 still claims it's using
TRANSCODER_EDP, so the HW state readout function will read it
(through PIPECONF) and expect it to be off, when it's actually on
because it's being used by CRTC 2.

So when we make "intel_crtc->cpu_transcoder = intel_crtc->pipe" we
make sure we're pointing to our own original CRTC which is certainly
not used by any other CRTC.

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>
12 years agodrm/i915: don't call Haswell PCH code when we can't or don't need
Paulo Zanoni [Tue, 23 Oct 2012 20:29:54 +0000 (18:29 -0200)]
drm/i915: don't call Haswell PCH code when we can't or don't need

On Ironlake we have one PCH transcoder and FDI per pipe, so we know
that if ironlake_crtc_driving_pch returns false we can disable the PCH
transcoder and we also know that when we disable the crtc we can also
disable the PCH transcoder.

On Haswell there is only 1 PCH transcoder and FDI and they can be used
by any CRTC. So if for one specific crtc haswell_crtc_driving_pch
returns false we can't assert anything about the state of the PCH
transcoder or the FDI link without checking if any other CRTC is using
the PCH.

So on this commit remove the "assert_fdi_{t,r}x_disabled" form
haswell_crtc_enable and also only disable FDI and the PCH transcoder
if the port being disabled was actually a PCH port (we only have one
port using PCH: the VGA port).

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: simplify intel_crtc_driving_pch
Paulo Zanoni [Thu, 25 Oct 2012 12:37:43 +0000 (10:37 -0200)]
drm/i915: simplify intel_crtc_driving_pch

By forking Ironlake and Haswell functions. The only callers are
{ironlake,haswell}_crtc_enable anyway, and this way we won't need to
add other checks on the Haswell version for the next gens.

V2: Even simpler, as pointed by Jani Nikula.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: fix checks inside haswell_crtc_{enable, disable}
Paulo Zanoni [Wed, 24 Oct 2012 13:32:00 +0000 (11:32 -0200)]
drm/i915: fix checks inside haswell_crtc_{enable, disable}

These functions were forked from their Ironlake versions, so now fix
the gen checks to reflect the fact that they will only run on Haswell.

It is worth noticing that we are not considering IBX/CPT possible on
Haswell anymore. So far on Haswell enablement we kept trying to still
consider IBX/CPT as a possibility with a Haswell CPU, but this was
never tested, I really doubt it will work with the current code and we
don't really have plans to support it. Future patches will remove the
IBX/CPT code from other Haswell functions. Notice that we still have a
WARN on haswell_crtc_mode_set in case we detect non-LPT PCH.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: fix checks inside ironlake_crtc_{enable, disable}
Paulo Zanoni [Wed, 24 Oct 2012 13:31:59 +0000 (11:31 -0200)]
drm/i915: fix checks inside ironlake_crtc_{enable, disable}

The last commit forked a Haswell version, so now we remove Haswell
code from these functions.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: fork a Haswell version of ironlake_crtc_{enable, disable}
Paulo Zanoni [Tue, 23 Oct 2012 20:29:51 +0000 (18:29 -0200)]
drm/i915: fork a Haswell version of ironlake_crtc_{enable, disable}

The way we enable and disable the PCH on Haswell changed considerably
since now we have only one PCH transcoder, so we can't keep the same
asserts and we also can't just unconditionally disable the PCH
transcoder for non-PCH outputs. So let's fork a Haswell version.

These new functions look exactly the same as the ironlake versions.
The next patches will introduce the differences.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove an extra #define for DP_RECEIVER_CAP_SIZE
Jani Nikula [Thu, 25 Oct 2012 10:12:07 +0000 (13:12 +0300)]
drm/i915: remove an extra #define for DP_RECEIVER_CAP_SIZE

Identical #define is now available in include/drm/drm_dp_helper.h, nuke the
dupe.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: extract intel_dp_init_panel_power_sequencer
Daniel Vetter [Sat, 20 Oct 2012 18:57:45 +0000 (20:57 +0200)]
drm/i915: extract intel_dp_init_panel_power_sequencer

That thing has grown way too big already.

Also move around a comment to the right spot.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: compute the pch dp aux divider from the rawclk
Daniel Vetter [Sat, 20 Oct 2012 18:57:44 +0000 (20:57 +0200)]
drm/i915/dp: compute the pch dp aux divider from the rawclk

Otherwise dp aux won't work on some hsw platforms, since they use a
different rawclk than the 125MHz clock used thus far.

To absolutely not change anything, round up: That way we get the old
63 divider for the default 125MHz clock.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/eDP: compute the panel power clock divisor from the pch rawclock
Daniel Vetter [Sat, 20 Oct 2012 18:57:43 +0000 (20:57 +0200)]
drm/i915/eDP: compute the panel power clock divisor from the pch rawclock

We need this when the bios forgets even to set that bit up. Most seem
to do that, even when they don't set up anything else in the panel
power sequencer.

Note that on IBX the rawclk is variable according to Bspec, but
everyone is using 125MHz. The rawclk is fixed to 125MHz on CPT, but
luckily we still have the same register available. On hsw, different
variants have different clocks, hence we need to check the register.

Since other pieces are driven by the rawclock, too, keep the little
helper in a central place.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: enable/disable backlight for eDP
Daniel Vetter [Sat, 20 Oct 2012 18:57:42 +0000 (20:57 +0200)]
drm/i915: enable/disable backlight for eDP

Like we already do for the LVDS panels. This seems to help greatly
in setting up the backlight, since the BIOS might refuse to cooperate.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
v2: Move the backlight_off call from panel_off to edp_backlight_off,
noticed by Paulo Zanoni.

Reviewed-by: Paulo Zanoni <przanoni@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: make edp panel power sequence setup more robust
Daniel Vetter [Sat, 20 Oct 2012 18:57:41 +0000 (20:57 +0200)]
drm/i915: make edp panel power sequence setup more robust

3 changes:
- If a given value is unset, use the maximal limits from the eDP spec.
- Write back the new values, since otherwise the panel power sequencing
  hw will not dtrt.
- Revert the early bail-out in case the register values are unset.

The last change reverts

commit bfa3384a9a84aaaa59443bbd776c142e7dba4b0f
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Tue Apr 10 11:58:04 2012 -0700

    drm/i915: check PPS regs for sanity when using eDP

v2:
- Unlock the PP regs as the very first thing. This is a required w/a
  for cpu eDP on port A, and generally a good idea.
- Fixup the panel power control port selection bits.

v3: Paulo Zanoni noticed that I've fumbled the computation of the spec
limit values. Fix them up. We've also noticed that the t8/t9 values in
the vbt/bios-programmed pp are much larger than any limits. My guess
is that this is to conceal any backlight enable/disable delays. So by
using the much shorter limits from the spec, which only concerns the
sink, we risk that we might display before the backlight is fully on,
or disable the output while the backlight still has afterglow. I've
figured I don't care too much, since this will only happen when both
the pp regs are not programmed, and the vbt tables don't contain
anything useful.

v4: Don't set the port selection bits on hsw/LPT, they don't exist any
more.

v5: Fixup spelling issues in comments, as noticed by Jesse Barnes.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Don't try to use SPR_SCALE when we don't have a sprite scaler
Damien Lespiau [Mon, 22 Oct 2012 17:19:27 +0000 (18:19 +0100)]
drm/i915: Don't try to use SPR_SCALE when we don't have a sprite scaler

Haswell does not have a scaler in the sprite pipeline anymore, so let's
ensure:
  1/ We bail out of update_plate() when someone is trying to ask to
     display a scaled framebuffer,
  2/ We never write to the nonexistent SPR_SCALE register

v2: Smash in the fixup from Damien in the disable_plane function.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> (for v1)
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> (for v1)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915/dp: actually nack test request
Daniel Vetter [Sat, 20 Oct 2012 19:13:05 +0000 (21:13 +0200)]
drm/i915/dp: actually nack test request

... like the comment says. No idea whether this has any effect, but
I guess it's better to not lie to the display by acking a test request
and never following through with it. This goes back to the commit that
originally introduced this code:

commit a60f0e38d72a5e24085d6e7e27a4cadc20ae268a
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date:   Thu Oct 20 15:09:17 2011 -0700

    drm/i915: add DP test request handling

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Meh'ed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: extract drm_dp_max_lane_count helper
Daniel Vetter [Mon, 22 Oct 2012 20:56:43 +0000 (22:56 +0200)]
drm: extract drm_dp_max_lane_count helper

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: extract dp link bw helpers
Daniel Vetter [Thu, 18 Oct 2012 08:15:31 +0000 (10:15 +0200)]
drm: extract dp link bw helpers

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: use the new dp train delay helpers
Daniel Vetter [Thu, 18 Oct 2012 08:15:30 +0000 (10:15 +0200)]
drm/i915: use the new dp train delay helpers

Only really required for dp 1.2. I've hoped this would help with some
link training woes I'm fighting, but alas those are only dp 1.1
devices.

Also move a comment that went misplaced in the recent refactorings to
the right spot again.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: extract dp link train delay functions from radeon
Daniel Vetter [Thu, 18 Oct 2012 13:32:40 +0000 (15:32 +0200)]
drm: extract dp link train delay functions from radeon

This requires a few changes since that dpcd value is above the
range currently cached by radeon. I've check the dp specs, and
above 0xf there's a big gap and nothing that looks like we should
cache it while a given device is plugged in. It's also the same value
that i915.ko uses.

Hence extend the various dpcd arrays in the radeon driver, use
proper symbolic constants where applicable (one place overallocated
the dpcd array to 25 bytes). Then also drop the rd_interval cache -
radeon_dp_link_train_init re-reads the dpcd block, so the values we'll
consume in train_cr and train_ce will always be fresh.

To avoid needless diff-churn, #define the old size of dpcd as the new
one and keep it around.

v2: Alex Deucher noticed one place where I've forgotten to replace 8
with DP_RECEIVER_CAP_SIZE.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: extract helpers to compute new training values from sink request
Daniel Vetter [Thu, 18 Oct 2012 08:15:27 +0000 (10:15 +0200)]
drm: extract helpers to compute new training values from sink request

Safe for the minor difference that the intel versions get an offset
into the link_status as an argument, both are the same again.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: dp helper: extract drm_dp_clock_recovery_ok
Daniel Vetter [Thu, 18 Oct 2012 08:15:25 +0000 (10:15 +0200)]
drm: dp helper: extract drm_dp_clock_recovery_ok

radeon and intel use the exact same definition.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
v2: Kill 2 more helpers in intel_dp.c that I've missed.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: dp helper: extract drm_dp_channel_eq_ok
Daniel Vetter [Thu, 18 Oct 2012 08:15:24 +0000 (10:15 +0200)]
drm: dp helper: extract drm_dp_channel_eq_ok

radeon and intel use the exact same definition.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm: rename drm_dp_i2c_helper.c to drm_dp_helper.c
Daniel Vetter [Thu, 18 Oct 2012 08:15:23 +0000 (10:15 +0200)]
drm: rename drm_dp_i2c_helper.c to drm_dp_helper.c

I want to move some dp link training helpers into this place, so in
the future this won't be just about i2c any longer.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: remove unused mem_block struct definition
Mika Kuoppala [Mon, 22 Oct 2012 13:10:30 +0000 (16:10 +0300)]
drm/i915: remove unused mem_block struct definition

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>
12 years agodrm/i915: Move cached EDID to intel_connector
Jani Nikula [Fri, 19 Oct 2012 11:51:52 +0000 (14:51 +0300)]
drm/i915: Move cached EDID to intel_connector

Move the cached EDID from intel_dp and intel_lvds_connector to
intel_connector. Unify cached EDID handling for LVDS and eDP, in
preparation for adding more generic EDID caching later.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agodrm/i915: Do not free the passed EDID in intel_connector_update_modes()
Jani Nikula [Fri, 19 Oct 2012 11:51:51 +0000 (14:51 +0300)]
drm/i915: Do not free the passed EDID in intel_connector_update_modes()

The caller, not intel_connector_update_modes(), should free the edid. This
improves the reusability of intel_connector_update_modes().

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>