Commit Graph

247 Commits

Author SHA1 Message Date
Jani Nikula b024ab9b2d drm/i915/bios: iterate over child devices to initialize ddi_port_info
Iterate over child devices instead of ports in parse_ddi_ports() to
initialize ddi_port_info. We'll eventually need to decide some stuff
based on the child device order, which may be different from the port
order.

As a bonus, this allows better abstractions for e.g. dvo port mapping.

There's a subtle change in the DDC pin and AUX channel sanitization as
we change the order. Otherwise, this should not change behaviour.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190322121008.4456-1-jani.nikula@intel.com
2019-03-25 15:16:33 +02:00
José Roberto de Souza 88a0d9606a drm/i915/vbt: Parse and use the new field with PSR2 TP2/3 wakeup time
A new field with the training pattern(TP) wakeup time for PSR2 was
added to VBT, so lets use it when available otherwise it will
fallback to PSR1 wakeup time.

v2: replacing enum to numerical usec time (Jani)

BSpec: 20131

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312195743.8829-1-jose.souza@intel.com
2019-03-13 14:20:19 -07:00
Rodrigo Vivi 2dd24a9c2c drm/i915/gen11+: First assume next platforms will inherit stuff
This exactly same approach was already used from gen9
to gen10 and from gen10 to gen11. Let's also use it
for gen11+.

Let's first assume that we inherit a similar platform
and than we apply the differences on top.

Different from the previous attempts this will be
done this time with coccinelle. We obviously need to
exclude some case that is really exclusive for gen11
like  PCH, Firmware, and few others. Luckly this was
easy to filter by selecting the files we are touching
with coccinelle as exposed below:

spatch -sp_file gen11\+.cocci --in-place i915_perf.c \
       intel_bios.c intel_cdclk.c intel_ddi.c \
       intel_device_info.c intel_display.c intel_dpll_mgr.c \
       intel_dsi_vbt.c intel_hdmi.c intel_mocs.c intel_color.c

@noticelake@ expression e; @@
-!IS_ICELAKE(e)
+INTEL_GEN(e) < 11
@notgen11@ expression e; @@
-!IS_GEN(e, 11)
+INTEL_GEN(e) < 11
@icelake@ expression e; @@
-IS_ICELAKE(e)
+INTEL_GEN(e) >= 11
@gen11@ expression e; @@
-IS_GEN(e, 11)
+INTEL_GEN(e) >= 11

No functional change.

v2: Remove intel_lrc.c per Tvrtko request since those were w/a
    for ICL hw issuea and media related configuration.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190308214300.25057-1-rodrigo.vivi@intel.com
2019-03-13 13:00:24 -07:00
Thomas Preston 2131bc0ced drm/i915/bios: assume eDP is present on port A when there is no VBT
We rely on VBT DDI port info for eDP detection on GEN9 platforms and
above. This breaks GEN9 platforms which don't have VBT because port A
eDP now defaults to false. Fix this by defaulting to true when VBT is
missing.

Fixes: a98d9c1d7e ("drm/i915/ddi: Rely on VBT DDI port info for eDP detection")
Signed-off-by: Thomas Preston <thomas.preston@codethink.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190306200618.17405-1-thomas.preston@codethink.co.uk
2019-03-13 18:10:17 +02:00
Imre Deak 828ccb31cf drm/i915/icl: Add TypeC ports only if VBT is present
We can't safely probe Type C ports, whether they are a legacy or a
USB/Thunderbolt DP Alternate Type C port. This would require performing
the TypeC connect sequence - as described by the specification - but
that may have unwanted side-effects. These side-effects include at least
- without completeness - timeouts during AUX power well enabling and
subsequent PLL enabling errors.

To safely identify these ports we really need VBT, which has the proper
flag for this (ddi_vbt_port_info::supports_typec_usb, supports_tbt).
Based on the above disable Type C ports if we can't load VBT for some
reason.

v2:
- Notice that we disable TypeC ports completely and simplify accordingly
  (Jose).
- Add code comment explaining why we disabled the ports. (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Jose Roberto de Souza <jose.souza@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128114242.28666-1-imre.deak@intel.com
2019-01-31 16:28:33 +02:00
Imre Deak e9d49bb718 drm/i915/ddi: Move DDI port detection to the corresponding helper
We have already a function to detect DDI ports using VBT, so instead of
opencoding the DDI specific version of this, move the opencoded part to
the existing helper.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181220132604.25222-1-imre.deak@intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2019-01-15 16:18:23 +02:00
Jani Nikula 2f80d7bd8d drm/i915: drop all drmP.h includes
Needs just a few additional includes here and there.

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108082709.3748-1-jani.nikula@intel.com
2019-01-09 10:26:36 +02:00
Imre Deak 38b3416f3c drm/i915/bios: Parse the VBT TypeC and Thunderbolt port flags
This is needed by the next patch to determine if a DDI TypeC port is
physically wired to a legacy DP or legacy HDMI connector or if the port
is wired to a USB-C/Thunderbolt connector.

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181214182703.18865-3-imre.deak@intel.com
2018-12-18 17:00:16 +02:00
Lucas De Marchi 0069000877 drm/i915: Rename IS_GEN to IS_GEN_RANGE
RANGE makes it longer, but clearer. We are also going to add a macro to
check an individual gen, so add the _RANGE prefix here.

Diff generated with:

sed 's/IS_GEN(/IS_GEN_RANGE(/g' drivers/gpu/drm/i915/{*/,}*.{c,h} -i

v2: use IS_GEN rather than GT_GEN

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212181044.15886-1-lucas.demarchi@intel.com
2018-12-12 16:51:49 -08:00
José Roberto de Souza e1bf094b3c drm/i915: Add HAS_DISPLAY() and use it
Right now it is decided if GEN has display by checking the num_pipes,
so lets make it explicit and use a macro.

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181130232048.14216-1-jose.souza@intel.com
2018-12-03 14:55:39 -08:00
Jani Nikula 3905308940 drm/i915/bios: rename intel_aux_ch() to intel_bios_port_aux_ch()
Conform to function naming in intel_bios.c.

Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181115105237.1237-1-jani.nikula@intel.com
2018-11-15 16:21:58 +02:00
Ville Syrjälä c1cd5b24d6 drm/i915: Determine DSI panel orientation from VBT
VBT appears to have two (or possibly three) ways to indicate the panel
rotation. The first is in the MIPI config block, but that apparenly
usually (maybe always?) indicates 0 degrees despite the actual panel
orientation. The second way to indicate this is in the general features
block, which can just indicate whether 180 degress rotation is used.
The third might be a separate rotation data block, but that is not
at all documented so who knows what it may contain.

Let's try the first two. We first try the DSI specicic VBT
information, and it it doesn't look trustworthy (ie. indicates
0 degrees) we fall back to the 180 degree thing. Just to avoid too
many changes in one go we shall also keep the hardware readout path
for now.

If this works for more than just my VLV FFRD the question becomes
how many of the panel orientation quirks are now redundant?

v2: Move the code into intel_dsi.c (Jani)

Cc: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181022142015.4026-1-ville.syrjala@linux.intel.com
Tested-by: Hans de Goede <hdegoede@redhat.com>
2018-11-13 17:20:32 +02:00
Imre Deak 15d248ae37 drm/i915: Move intel_aux_ch() to intel_bios.c
From ICL onwards all the DDI/TypeC ports - even working in HDMI mode -
need to know their corresponding AUX channel, so move the corresponding
helper to a common place.

No functional change.

v4:
- Fix 'no space is necessary after a cast' checkpatch warn.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181101140427.31026-2-imre.deak@intel.com
2018-11-02 01:23:58 +02:00
Madhav Chauhan bf4d57ff41 drm/i915/icl: Find DSI presence for ICL
This patch detects DSI presence for ICL platform
by reading VBT. DSI detection is done while initializing
DSI using newly added function intel_gen11_dsi_init.

v2 by Jani:
 - Preserve old behavour of intel_bios_is_dsi_present()
 - s/intel_gen11_dsi_init/icl_dsi_init/g

Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2324cdfc8918bda3165354e5e0d15053b1074f14.1540900289.git.jani.nikula@intel.com
2018-11-01 12:23:40 +02:00
Colin Ian King c238ad6258 drm/i915/psr: fix copy-paste error with setting of tp2_wakeup_time_us
Currently for the psr_table->tp2_tp3_wakeup_time case 3 there appears
to be a copy-paste error from the previous switch statement where
dev_priv->vbt.psr.tp1_wakeup_time_us is being assigned and I believe
it should be dev_priv->vbt.psr.tp2_tp3_wakeup_time_us that should be
assigned instead.

Detected by CoverityScan, CID#1470105 ("Copy-paste error")

Fixes: 77312ae8f0 ("drm/i915/psr: vbt change for psr")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180620132543.28092-1-colin.king@canonical.com
2018-06-20 12:00:31 -07:00
Vathsala Nagaraju 0fdb3f75a3 drm/i915/psr: Adds psrwake options for all platforms
Adds new psrwake options defined in the below table.
Platform	PSR wake options vbt version
KBL/CFL/WHL	All(205+)
BXT		Uses old interpretation.
CNL/ICL+	All(205+)
GLK		All(205+)
SKL		All PV releases (Check for 205+ might help but cannot be foolproof)

We will continue with newer interpretation for SKL from 205.

v2: Jani
    Keep the bdb version check.
v3:
    Apply newer version for skl from 205+(DK).
    Add (version check && platform list) (Jani).
    Add bdb version for each platform in commit message(DK).

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Puthikorn Voravootivat <puthik@chromium.org>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Ashutosh D Shukla <ashutosh.d.shukla@intel.com>
Cc: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1529302326-3567-1-git-send-email-vathsala.nagaraju@intel.com
2018-06-19 11:22:34 +03:00
Jani Nikula 0ede014188 drm/i915/vbt: switch to kernel unsigned int types
We have fairly mixed uintN_t vs. uN usage throughout the driver, but try
to stick to kernel types at least where it's more prevalent.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ed5de29c280797b20eb625d52592dcbba8326684.1528794959.git.jani.nikula@intel.com
2018-06-18 14:44:52 +03:00
Jani Nikula 13d0464b32 drm/i915: be more strict about HAS_PCH_NOP() usage
HAS_PCH_NOP() implies a PCH platform without south display, not generic
disabled display. Prefer num_pipes == 0 for PCH independent checks.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180608123330.31003-5-jani.nikula@intel.com
2018-06-11 10:21:18 +03:00
Radhakrishna Sripada 3937eb1a07 drm/i915/icl: Map VBT DDC Pin to BSpec DDC Pin
On ICL we need to map VBT DDC Pin to BSpec DDC Pin.
Adding ICL Pin Values.

According to VBT
Block 2 (General Bytes Definition)
DDC Bus

+----------+-----------+--------------------+
| DDI Type | VBT Value | BSpec Mapped Value |
+----------+-----------+--------------------+
| DDI-A    | 0x1       | 0x1                |
| DDI-B    | 0x2       | 0x2                |
| PORT-1   | 0x4       | 0x9                |
| PORT-2   | 0x5       | 0xA                |
| PORT-3   | 0x6       | 0xB                |
| PORT-4   | 0x7       | 0xC                |
+----------+-----------+--------------------+

Cc: James Ausmus <james.ausmus@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Clinton Taylor <clinton.a.taylor@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[Paulo: checkpatch fixes.]
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-9-paulo.r.zanoni@intel.com
2018-06-01 16:13:54 -07:00
Ville Syrjälä ca3b3fa344 drm/i915: Consult VBT "LVDS config" bits to determine whether internal LVDS is present
VBT seems to have some bits to tell us whether the internal LVDS port
has something hooked up. In theory one might expect the VBT to not have
a child device for the LVDS port if there's no panel hooked up, but
in practice many VBTs still add the child device. The "LVDS config" bits
seem more reliable though, so let's check those.

So far we've used the "LVDS config" bits to check for eDP support on
ILK+, and disable the internal LVDS when the value is 3. That value
is actually documented as "Both internal LVDS and SDVO LVDS", but in
practice it looks to mean "eDP" on all the ilk+ VBTs I've seen. So let's
keep that interpretation, but for pre-ILK we will consider the value
3 to also indicate the presence of the internal LVDS.

Currently we have 25 DMI matches for the "no internal LVDS" quirk. In an
effort to reduce that let's toss in a WARN when the DMI match and VBT
both tell us that the internal LVDS is not present. The hope is that
people will report a bug, and then we can just nuke the corresponding
entry from the DMI quirk list. Credits to Jani for this idea.

v2: Split the basic int_lvds_support thing to a separate patch (Jani)
v3: Rebase
v4: Limit this to VBT version >= 134

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180518150138.18361-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-25 18:00:26 +03:00
Vathsala Nagaraju 77312ae8f0 drm/i915/psr: vbt change for psr
For psr block #9, the vbt description has moved to options [0-3] for
TP1,TP2,TP3 Wakeup time from decimal value without any change to vbt
structure. Since spec does not  mention from which VBT version this
change was added to vbt.bsf file, we cannot depend on bdb->version check
to change for all the platforms.

There is RCR inplace for GOP team to  provide the version number
to make generic change. Since Kabylake with bdb version 209 is having this
change, limiting this change to gen9_bc and version 209+ to unblock google.

Tested on skl(bdb version 203,without options) and
kabylake(bdb version 209,212) having new options.

bspec 20131

v2: (Jani and Rodrigo)
    move the 165 version check to intel_bios.c
v3: Jani
    Move the abstraction to intel_bios.
v4: Jani
    Rename tp*_wakeup_time to have "us" suffix.
    For values outside range[0-3],default to max 2500us.
    Old decimal value was wake up time in multiples of 100us.
v5: Jani and Rodrigo
    Handle option 2 in default condition.
    Print oustide range value.
    For negetive values default to 2500us.
v6: Jani
    Handle default first and then fall through for case 2.
v7: Rodrigo
    Apply this change for IS_GEN9_BC and vbt version > 209
v8: Puthik
    Add new function vbt_psr_to_us.
v9: Jani
    Change to v7 version as it's more readable.
    DK
    add comment /*fall through*/ after case2.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Puthikorn Voravootivat <puthik@chromium.org>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1526981243-2745-1-git-send-email-vathsala.nagaraju@intel.com
2018-05-24 16:03:49 +03:00
Ville Syrjälä 59462a00cc drm/i915: Eliminate the unused dev_priv->vbt.lvds_vbt
dev_priv->vbt.lvds_vbt is set but never actually used. Kill it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180508124136.10969-3-ville.syrjala@linux.intel.com
2018-05-22 15:52:35 +03:00
Ville Syrjälä 5255e2f8d1 drm/i915: Replace vbt edp.support with int_lvds_support
Replace dev_priv->vbt.edp.support with
dev_priv->vbt.int_lvds_support. We'll want to extend its
use beyond the LVDS vs. eDP case in the future.

v2: Nuke the edp.support from parse_edp() (Jani)
    Only clear int_lvds_support for gen5+ to preserve
    the current behaviour (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180508140814.20105-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2018-05-22 15:50:40 +03:00
Dhinakaran Pandiyan 2bdd045e3a drm/i915/psr: Check if VBT says PSR can be enabled.
Driver features data block has a boolean flag for PSR, use this to decide
whether PSR should be enabled on a platform. The module parameter can
still be used to override this.

Note: The feature currently remains disabled by default for all platforms
irrespective of what VBT says.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180509003524.3199-1-dhinakaran.pandiyan@intel.com
2018-05-09 05:34:20 -07:00
Jani Nikula e53a105839 drm/i915/bios: reduce the scope of some local variables in parse_ddi_port()
No functional changes.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180411131519.9091-2-jani.nikula@intel.com
2018-04-12 11:22:46 +03:00
Jani Nikula f212bf9abe drm/i915/bios: filter out invalid DDC pins from VBT child devices
The VBT contains the DDC pin to use for specific ports. Alas, sometimes
the field appears to contain bogus data, and while we check for it later
on in intel_gmbus_get_adapter() we fail to check the returned NULL on
errors. Oops results.

The simplest approach seems to be to catch and ignore the bogus DDC pins
already at the VBT parsing phase, reverting to fixed per port default
pins. This doesn't guarantee display working, but at least it prevents
the oops. And we continue to be fuzzed by VBT.

One affected machine is Dell Latitude 5590 where a BIOS upgrade added
invalid DDC pins.

Typical backtrace:

[   35.461411] WARN_ON(!intel_gmbus_is_valid_pin(dev_priv, pin))
[   35.461432] WARNING: CPU: 6 PID: 411 at drivers/gpu/drm/i915/intel_i2c.c:844 intel_gmbus_get_adapter+0x32/0x37 [i915]
[   35.461437] Modules linked in: i915 ahci libahci dm_snapshot dm_bufio dm_raid raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx
[   35.461445] CPU: 6 PID: 411 Comm: kworker/u16:2 Not tainted 4.16.0-rc7.x64-g1cda370ffded #1
[   35.461447] Hardware name: Dell Inc. Latitude 5590/0MM81M, BIOS 1.1.9 03/13/2018
[   35.461450] Workqueue: events_unbound async_run_entry_fn
[   35.461465] RIP: 0010:intel_gmbus_get_adapter+0x32/0x37 [i915]
[   35.461467] RSP: 0018:ffff9b4e43d47c40 EFLAGS: 00010286
[   35.461469] RAX: 0000000000000000 RBX: ffff98f90639f800 RCX: ffffffffae051960
[   35.461471] RDX: 0000000000000001 RSI: 0000000000000092 RDI: 0000000000000246
[   35.461472] RBP: ffff98f905410000 R08: 0000004d062a83f6 R09: 00000000000003bd
[   35.461474] R10: 0000000000000031 R11: ffffffffad4eda58 R12: ffff98f905410000
[   35.461475] R13: ffff98f9064c1000 R14: ffff9b4e43d47cf0 R15: ffff98f905410000
[   35.461477] FS:  0000000000000000(0000) GS:ffff98f92e580000(0000) knlGS:0000000000000000
[   35.461479] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.461481] CR2: 00007f5682359008 CR3: 00000001b700c005 CR4: 00000000003606e0
[   35.461483] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.461484] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.461486] Call Trace:
[   35.461501]  intel_hdmi_set_edid+0x37/0x27f [i915]
[   35.461515]  intel_hdmi_detect+0x7c/0x97 [i915]
[   35.461518]  drm_helper_probe_single_connector_modes+0xe1/0x6c0
[   35.461521]  drm_setup_crtcs+0x129/0xa6a
[   35.461523]  ? __switch_to_asm+0x34/0x70
[   35.461525]  ? __switch_to_asm+0x34/0x70
[   35.461527]  ? __switch_to_asm+0x40/0x70
[   35.461528]  ? __switch_to_asm+0x34/0x70
[   35.461529]  ? __switch_to_asm+0x40/0x70
[   35.461531]  ? __switch_to_asm+0x34/0x70
[   35.461532]  ? __switch_to_asm+0x40/0x70
[   35.461534]  ? __switch_to_asm+0x34/0x70
[   35.461536]  __drm_fb_helper_initial_config_and_unlock+0x34/0x46f
[   35.461538]  ? __switch_to_asm+0x40/0x70
[   35.461541]  ? _cond_resched+0x10/0x33
[   35.461557]  intel_fbdev_initial_config+0xf/0x1c [i915]
[   35.461560]  async_run_entry_fn+0x2e/0xf5
[   35.461563]  process_one_work+0x15b/0x364
[   35.461565]  worker_thread+0x2c/0x3a0
[   35.461567]  ? process_one_work+0x364/0x364
[   35.461568]  kthread+0x10c/0x122
[   35.461570]  ? _kthread_create_on_node+0x5d/0x5d
[   35.461572]  ret_from_fork+0x35/0x40
[   35.461574] Code: 74 16 89 f6 48 8d 04 b6 48 c1 e0 05 48 29 f0 48 8d 84 c7 e8 11 00 00 c3 48 c7 c6 b0 19 1e c0 48 c7 c7 64 8a 1c c0 e8 47 88 ed ec <0f> 0b 31 c0 c3 8b 87 a4 04 00 00 80 e4 fc 09 c6 89 b7 a4 04 00
[   35.461604] WARNING: CPU: 6 PID: 411 at drivers/gpu/drm/i915/intel_i2c.c:844 intel_gmbus_get_adapter+0x32/0x37 [i915]
[   35.461606] ---[ end trace 4fe1e63e2dd93373 ]---
[   35.461609] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[   35.461613] IP: i2c_transfer+0x4/0x86
[   35.461614] PGD 0 P4D 0
[   35.461616] Oops: 0000 [#1] SMP PTI
[   35.461618] Modules linked in: i915 ahci libahci dm_snapshot dm_bufio dm_raid raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx
[   35.461624] CPU: 6 PID: 411 Comm: kworker/u16:2 Tainted: G        W        4.16.0-rc7.x64-g1cda370ffded #1
[   35.461625] Hardware name: Dell Inc. Latitude 5590/0MM81M, BIOS 1.1.9 03/13/2018
[   35.461628] Workqueue: events_unbound async_run_entry_fn
[   35.461630] RIP: 0010:i2c_transfer+0x4/0x86
[   35.461631] RSP: 0018:ffff9b4e43d47b30 EFLAGS: 00010246
[   35.461633] RAX: ffff9b4e43d47b6e RBX: 0000000000000005 RCX: 0000000000000001
[   35.461635] RDX: 0000000000000002 RSI: ffff9b4e43d47b80 RDI: 0000000000000000
[   35.461636] RBP: ffff9b4e43d47bd8 R08: 0000004d062a83f6 R09: 00000000000003bd
[   35.461638] R10: 0000000000000031 R11: ffffffffad4eda58 R12: 0000000000000002
[   35.461639] R13: 0000000000000001 R14: ffff9b4e43d47b6f R15: ffff9b4e43d47c07
[   35.461641] FS:  0000000000000000(0000) GS:ffff98f92e580000(0000) knlGS:0000000000000000
[   35.461643] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.461645] CR2: 0000000000000010 CR3: 00000001b700c005 CR4: 00000000003606e0
[   35.461646] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.461647] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.461649] Call Trace:
[   35.461652]  drm_do_probe_ddc_edid+0xb3/0x128
[   35.461654]  drm_get_edid+0xe5/0x38d
[   35.461669]  intel_hdmi_set_edid+0x45/0x27f [i915]
[   35.461684]  intel_hdmi_detect+0x7c/0x97 [i915]
[   35.461687]  drm_helper_probe_single_connector_modes+0xe1/0x6c0
[   35.461689]  drm_setup_crtcs+0x129/0xa6a
[   35.461691]  ? __switch_to_asm+0x34/0x70
[   35.461693]  ? __switch_to_asm+0x34/0x70
[   35.461694]  ? __switch_to_asm+0x40/0x70
[   35.461696]  ? __switch_to_asm+0x34/0x70
[   35.461697]  ? __switch_to_asm+0x40/0x70
[   35.461698]  ? __switch_to_asm+0x34/0x70
[   35.461700]  ? __switch_to_asm+0x40/0x70
[   35.461701]  ? __switch_to_asm+0x34/0x70
[   35.461703]  __drm_fb_helper_initial_config_and_unlock+0x34/0x46f
[   35.461705]  ? __switch_to_asm+0x40/0x70
[   35.461707]  ? _cond_resched+0x10/0x33
[   35.461724]  intel_fbdev_initial_config+0xf/0x1c [i915]
[   35.461727]  async_run_entry_fn+0x2e/0xf5
[   35.461729]  process_one_work+0x15b/0x364
[   35.461731]  worker_thread+0x2c/0x3a0
[   35.461733]  ? process_one_work+0x364/0x364
[   35.461734]  kthread+0x10c/0x122
[   35.461736]  ? _kthread_create_on_node+0x5d/0x5d
[   35.461738]  ret_from_fork+0x35/0x40
[   35.461739] Code: 5c fa e1 ad 48 89 df e8 ea fb ff ff e9 2a ff ff ff 0f 1f 44 00 00 31 c0 e9 43 fd ff ff 31 c0 45 31 e4 e9 c5 fd ff ff 41 54 55 53 <48> 8b 47 10 48 83 78 10 00 74 70 41 89 d4 48 89 f5 48 89 fb 65
[   35.461756] RIP: i2c_transfer+0x4/0x86 RSP: ffff9b4e43d47b30
[   35.461757] CR2: 0000000000000010
[   35.461759] ---[ end trace 4fe1e63e2dd93374 ]---

Based on a patch by Fei Li.

v2: s/reverting/sticking/ (Chris)

Cc: stable@vger.kernel.org
Cc: Fei Li <fei.li@intel.com>
Co-developed-by: Fei Li <fei.li@intel.com>
Reported-by: Pavel Nakonechnyi <zorg1331@gmail.com>
Reported-and-tested-by: Seweryn Kokot <sewkokot@gmail.com>
Reported-and-tested-by: Laszlo Valko <valko@linux.karinthy.hu>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105549
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105961
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180411131519.9091-1-jani.nikula@intel.com
2018-04-12 11:22:07 +03:00
Jani Nikula f3aa929c59 drm/i915/bios: remove duplicated code
Apparently caused by a merge fail at some point. Due to the nature of
the duplicated block, the second one will have no effect, and there's no
need to backport.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180410091248.1454-1-jani.nikula@intel.com
2018-04-11 16:06:17 +03:00
Hans de Goede fb38e7ade9 drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3
So far models of the Dell Venue 8 Pro, with a panel with MIPI panel
index = 3, one of which has been kindly provided to me by Jan Brummer,
where not working with the i915 driver, giving a black screen on the
first modeset.

The problem with at least these Dells is that their VBT defines a MIPI
ASSERT sequence, but not a DEASSERT sequence. Instead they DEASSERT the
reset in their INIT_OTP sequence, but the deassert must be done before
calling intel_dsi_device_ready(), so that is too late.

Simply doing the INIT_OTP sequence earlier is not enough to fix this,
because the INIT_OTP sequence also sends various MIPI packets to the
panel, which can only happen after calling intel_dsi_device_ready().

This commit fixes this by splitting the INIT_OTP sequence into everything
before the first DSI packet and everything else, including the first DSI
packet. The first part (everything before the first DSI packet) is then
used as deassert sequence.

Changed in v2:
-Split the init OTP sequence into a deassert reset and the actual init
 OTP sequence, instead of calling it earlier and then having the first
 mipi_exec_send_packet() call call intel_dsi_device_ready().

Changes in v3:
-Move the whole shebang to intel_bios.c

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82880
References: https://bugs.freedesktop.org/show_bug.cgi?id=101205
Cc: Jan-Michael Brummer <jan.brummer@tabos.org>
Reported-by: Jan-Michael Brummer <jan.brummer@tabos.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-3-hdegoede@redhat.com
2018-02-14 11:38:12 +01:00
Hans de Goede e1b86c85f6 drm/i915: Free memdup-ed DSI VBT data structures on driver_unload
Make intel_bios_cleanup function free the DSI VBT data structures which
are memdup-ed by parse_mipi_config() and parse_mipi_sequence().

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-2-hdegoede@redhat.com
2018-02-14 11:38:11 +01:00
Hans de Goede 785f076b3b drm/i915: Add intel_bios_cleanup() function
Add an intel_bios_cleanup() function to act as counterpart of
intel_bios_init() and move the cleanup of vbt related resources there,
putting it in the same file as the allocation.

Changed in v2:
-While touching the code anyways, remove the unnecessary:
 if (dev_priv->vbt.child_dev) done before kfree(dev_priv->vbt.child_dev)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-1-hdegoede@redhat.com
2018-02-14 11:38:10 +01:00
Tvrtko Ursulin c56b89f16d drm/i915: Use INTEL_GEN everywhere
Coccinelle patch:

 @@
 identifier p;
 @@
 -INTEL_INFO(p)->gen
 +INTEL_GEN(p)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180208130606.15556-12-tvrtko.ursulin@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180209215847.6660-1-chris@chris-wilson.co.uk
2018-02-09 22:29:02 +00:00
Jani Nikula 99b91bda84 drm/i915/dp: limit DP link rate based on VBT on CNL+
We have the max DP link rate info available in VBT since BDB version
216, included in child device config since commit c4fb60b9ab
("drm/i915/bios: add DP max link rate to VBT child device
struct"). Parse it and use it.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a8b1364d1f2394fba3062b6ad11b474744ea4366.1517482774.git.jani.nikula@intel.com
2018-02-02 09:50:51 +02:00
Rodrigo Vivi 3393ce1ed8 drm/i915/cnp: Properly handle VBT ddc pin out of bounds.
If the table result is out of bounds on the array map
there is something really wrong with VBT pin so we don't
return that vbt_pin, but only return 0 instead.

This basically reverts commit 'a8e6f3888b05 ("drm/i915/cnp:
Ignore VBT request for know invalid DDC pin.")'

Also this properly fixes commit 9c3b2689d0 ("drm/i915/cnl:
Map VBT DDC Pin to BSpec DDC Pin.")

v2: Do in a way that we don't break other platforms. (Jani)

v3: Keep debug message (Jani)

v4: Don't mess with 0 mapping was noticed by Jani and
    addressed with a simple solution suggested by Lucas
    that makes this even simpler.

Fixes: a8e6f3888b ("drm/i915/cnp: Ignore VBT request for know invalid DDC pin.")
Fixes: 9c3b2689d0 ("drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.")
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125222524.22059-1-rodrigo.vivi@intel.com
2018-01-29 14:11:56 -08:00
Rodrigo Vivi a8e6f3888b drm/i915/cnp: Ignore VBT request for know invalid DDC pin.
Let's ignore VBT request if the pin is clearly wrong.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104139
Cc: Kai Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180123174050.4261-1-rodrigo.vivi@intel.com
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
2018-01-23 15:17:00 -08:00
Rodrigo Vivi 841b5ed7aa drm/i915/cnl: Add Port F definition.
Some Cannonlake SKUs will come with a full split between
port A and port E. This will be called port F although it
is not a 6th port, but only a split.

Note this patch alone is not sufficient for port F enabling,
it's just the first step.

v2: Fix size of dvo_ports found by Ander.
v3: Adding missing cases from intel_bios.c for Port_F
v4: Adding other missing cases and fix the commit message.
v5: Rebase on top of display headers rework.
v6 (from Paulo): improve commit message, bikeshed bit definitions.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180111180010.24357-2-paulo.r.zanoni@intel.com
2018-01-19 17:51:35 -02:00
Jani Nikula c4fb60b9ab drm/i915/bios: add DP max link rate to VBT child device struct
Update VBT defs to reflect revision 216. While at it, default the
expected child device struct size to sizeof the size rather than a
hardcoded value.

v2: Fix bit order (David)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180118153310.32437-1-jani.nikula@intel.com
2018-01-18 12:13:40 -08:00
Rodrigo Vivi 176d5325d1 Merge airlied/drm-next into drm-intel-next-queued
Catchup with upstream.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-11-14 07:43:00 -08:00
Dave Airlie 36a5fdf76d This time really the last i915 batch for v4.15:
- PSR state tracking in crtc state (Ville)
 - Fix eviction when the GGTT is idle but full (Chris)
 - BDW DP aux channel timeout fix (James)
 - LSPCON detection fixes (Shashank)
 - Use for_each_pipe to iterate over pipes (Mika Kahola)
 - Replace *_reference/unreference() or *_ref/unref with _get/put() (Harsha)
 - Refactoring and preparation for DDI encoder type cleanup (Ville)
 - Broadwell DDI FDI buf translation fix (Chris)
 - Read CSB and CSB write pointer from HWSP in GVT-g VM if available (Weinan)
 - GuC/HuC firmware loader refactoring (Michal)
 - Make shrinking more effective and not stall so much (Chris)
 - Cannonlake PLL fixes (Rodrigo)
 - DP MST connector error propagation fixes (James)
 - Convert timers to use timer_setup (Kees Cook)
 - Skylake plane enable/disable unification (Juha-Pekka)
 - Fix to actually free driver internal objects when requested (Chris)
 - DDI buf trans refactoring (Ville)
 - Skip waking the device to service pwrite (Chris)
 - Improve DSI VBT backlight parsing abstraction (Madhav)
 - Cannonlake VBT DDC pin mapping fix (Rodrigo)
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Merge tag 'drm-intel-next-2017-10-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

This time really the last i915 batch for v4.15:

- PSR state tracking in crtc state (Ville)
- Fix eviction when the GGTT is idle but full (Chris)
- BDW DP aux channel timeout fix (James)
- LSPCON detection fixes (Shashank)
- Use for_each_pipe to iterate over pipes (Mika Kahola)
- Replace *_reference/unreference() or *_ref/unref with _get/put() (Harsha)
- Refactoring and preparation for DDI encoder type cleanup (Ville)
- Broadwell DDI FDI buf translation fix (Chris)
- Read CSB and CSB write pointer from HWSP in GVT-g VM if available (Weinan)
- GuC/HuC firmware loader refactoring (Michal)
- Make shrinking more effective and not stall so much (Chris)
- Cannonlake PLL fixes (Rodrigo)
- DP MST connector error propagation fixes (James)
- Convert timers to use timer_setup (Kees Cook)
- Skylake plane enable/disable unification (Juha-Pekka)
- Fix to actually free driver internal objects when requested (Chris)
- DDI buf trans refactoring (Ville)
- Skip waking the device to service pwrite (Chris)
- Improve DSI VBT backlight parsing abstraction (Madhav)
- Cannonlake VBT DDC pin mapping fix (Rodrigo)

* tag 'drm-intel-next-2017-10-23' of git://anongit.freedesktop.org/drm/drm-intel: (87 commits)
  drm/i915: Update DRIVER_DATE to 20171023
  drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.
  drm/i915: Let's use more enum intel_dpll_id pll_id.
  drm/i915: Use existing DSI backlight ports info
  drm/i915: Parse DSI backlight/cabc ports.
  drm/i915: Skip waking the device to service pwrite
  drm/i915/crt: split compute_config hook by platforms
  drm/i915: remove g4x lowfreq_avail and has_pipe_cxsr
  drm/i915: Drop the redundant hdmi prefix/suffix from a lot of variables
  drm/i915: Unify error handling for missing DDI buf trans tables
  drm/i915: Centralize the SKL DDI A/E vs. B/C/D buf trans handling
  drm/i915: Kill off the BXT buf_trans default_index
  drm/i915: Pass encoder type to cnl_ddi_vswing_sequence() explicitly
  drm/i915: Integrate BXT into intel_ddi_dp_voltage_max()
  drm/i915: Pass the level to intel_prepare_hdmi_ddi_buffers()
  drm/i915: Pass the encoder type explicitly to skl_set_iboost()
  drm/i915: Extract intel_ddi_get_buf_trans_hdmi()
  drm/i915: Relocate intel_ddi_get_buf_trans_*() functions
  drm/i915: Flush the idle-worker for debugfs/i915_drop_caches
  drm/i915: adjust get_crtc_fence_y_offset() to use base.y instead of crtc.y
  ...
2017-11-04 05:43:44 +10:00
Dave Airlie 7a88cbd8d6 Linux 4.14-rc7
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Backmerge tag 'v4.14-rc7' into drm-next

Linux 4.14-rc7

Requested by Ben Skeggs for nouveau to avoid major conflicts,
and things were getting a bit conflicty already, esp around amdgpu
reverts.
2017-11-02 12:40:41 +10:00
Ville Syrjälä d6038611aa drm/i915: Parse max HDMI TMDS clock from VBT
Starting from version 204 VBT can specify the max TMDS clock we are
allowed to use with HDMI ports. Parse that information and take it
into account when filtering modes and computing a crtc state.

Also take the opportunity to sort the platform check if ladder
from new to old.

v2: Add defines for the values into intel_vbt_defs.h (Jani)
    Don't fall back to 0 silently for unknown values (Jani)
    Skip the debug print for the 0 case (Jani)

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171030145702.23662-1-ville.syrjala@linux.intel.com
2017-10-30 19:48:11 +02:00
Rodrigo Vivi 9c3b2689d0 drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin.
Starting on CNL we now need to map VBT DDC Pin to
BSPec DDC Pin values. Not a direct translation anymore.

According to VBT
Block 2 (General Bytes Definition)
DDC Bus

+----------+-----------+--------------------+
| DDI Type | VBT Value | Bspec Mapped Value |
+----------+-----------+--------------------+
| DDI-B    | 0x1       | 0x1                |
| DDI-C    | 0x2       | 0x2                |
| DDI-D    | 0x3       | 0x4                |
| DDI-F    | 0x4       | 0x3                |
+----------+-----------+--------------------+

v2: Move defines to a better place.
    This is actually CNL_PCH not CNL only.
v3: Accepting Ville's suggestions: enums and array to
    to make this future proof.
v4: Protect the array access as Ville suggested.
    Also accepting all Jani's suggestions:
    	      - use already defined gmbus pin definitions.
	      - use map_ddc_pin for disambiguation.
	      - Add /* sic */ comment on inverted values
	      	so people can easily see it it nos a mistake
		we have the map 3 -> 4 and 4 -> 3 :/

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Clinton Taylor <clinton.a.taylor@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171020172641.16029-1-rodrigo.vivi@intel.com
2017-10-20 16:18:03 -07:00
Madhav Chauhan 6a2f0641d3 drm/i915: Use existing DSI backlight ports info
This patch re-use already parsed DSI backlight/cabc ports
info for saving it inside struct intel_dsi rather than
parsing it at the time of DSI initialization.

V2: Remove backlight and cabc variable initialization (Jani N).

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1507898700-20016-2-git-send-email-madhav.chauhan@intel.com
2017-10-20 11:28:49 +03:00
Madhav Chauhan 46e5832014 drm/i915: Parse DSI backlight/cabc ports.
This patch parse DSI backlight/cabc ports info from
VBT and save them inside local structure. This saved info
can be directly used while initializing DSI for different
platforms instead of parsing for each platform.

V2: Changes:
    - Typo fix in commit message.
    - Move up newly added port variables (Jani N)
    - Remove redundant initialization (Jani N)
    - Don't parse CABC ports if not supported (Jani N)
V3: Patch restructure (Suggested by Jani N)

Credits-to: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1507898700-20016-1-git-send-email-madhav.chauhan@intel.com
2017-10-20 11:28:43 +03:00
Jani Nikula ea850f64c2 drm/i915/bios: parse DDI ports also for CHV for HDMI DDC pin and DP AUX channel
While technically CHV isn't DDI, we do look at the VBT based DDI port
info for HDMI DDC pin and DP AUX channel. (We call these "alternate",
but they're really just something that aren't platform defaults.)

In commit e4ab73a132 ("drm/i915: Respect alternate_ddc_pin for all DDI
ports") Ville writes, "IIRC there may be CHV system that might actually
need this."

I'm not sure why there couldn't be even more platforms that need this,
but start conservative, and parse the info for CHV in addition to DDI.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100553
Reported-by: Marek Wilczewski <mw@3cte.pl>
Cc: stable@vger.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d0815082cb98487618429b62414854137049b888.1506586821.git.jani.nikula@intel.com
(cherry picked from commit 348e4058eb)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-10-11 10:32:57 -07:00
Jani Nikula 0ead5f81d4 drm/i915/bios: don't pass bdb to parsers that don't parse VBT directly
Hint that you're not supposed to look at VBT in these functions.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b82c326be8c796a70bdc2bd1c479bbb6159f5cb0.1506586821.git.jani.nikula@intel.com
2017-10-10 09:06:33 +03:00
Jani Nikula 0ebdabe612 drm/i915/bios: parse SDVO device mapping from pre-parsed child devices
We parse and store the child devices in
parse_general_definitions(). There is no need to parse the VBT block
again for SDVO device mapping. Do the same as we do in
parse_ddi_ports().

We no longer have access to child device size at this stage, but we also
don't need to worry about reading past the child device anymore. Instead
of a child device size check, do a mild optimization by limiting the
parsing to gens 3 through 7.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c918d4173dd38a165295f1270cb16c2c01bd8cd1.1506586821.git.jani.nikula@intel.com
2017-10-10 09:06:17 +03:00
Jani Nikula b3ca1f43b2 drm/i915/bios: merge parse_device_mapping() into parse_general_definitions()
They're both parsing the same block, and there's no need for them to be
split. The former also benefits from the range checks in the latter.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/64a292606ecbb0b8602e6c5523c5746573ec3944.1506586821.git.jani.nikula@intel.com
2017-10-10 09:06:10 +03:00
Jani Nikula 53f6b2436e drm/i915/bios: cleanup comments and useless return
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4a95fb9d23d980830e3158d3c57258e6539965ce.1506586821.git.jani.nikula@intel.com
2017-10-10 09:06:02 +03:00
Jani Nikula 127704f547 drm/i915/bios: remove an unnecessary temp variable
Prepare for merging parse_device_mapping() into
parse_general_definitions(). No functional changes.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f1c3621e2622f4debdfb4a2f5c1959845754ac04.1506586821.git.jani.nikula@intel.com
2017-10-10 09:05:54 +03:00
Jani Nikula 2d936f1cf7 drm/i915/bios: don't initialize fields based on vbt version
In theory, these might clobber information for older VBT versions.

We might have to store the BDB version for later parsing, but currently
all code accessing these fields will only use them on newer platforms
with new enough BDB versions.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0232d9cb258e8f83c4180cdb8aad1459a312ec2a.1506586821.git.jani.nikula@intel.com
2017-10-10 09:05:44 +03:00