Rename dp/ to display/ to account for additional display-related
helpers, such as HDMI. Update all related include statements. No
functional changes.
Various drivers, such as i915 and amdgpu, use similar naming scheme
by putting code for video-output standards into a local display/
directory. The new directory's name is aligned with this convention.
v2:
* update commit message (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-3-tzimmermann@suse.de
So that we can start using drm_dbg_*() for
drm_dp_link_train_channel_eq_delay() and
drm_dp_lttpr_link_train_channel_eq_delay().
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-7-lyude@redhat.com
Reviewed-by: Dave Airlie <airlied@redhat.com>
So that we can start using drm_dbg_*() in
drm_dp_link_train_clock_recovery_delay().
Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-6-lyude@redhat.com
Reviewed-by: Dave Airlie <airlied@redhat.com>
This is something that we've wanted for a while now: the ability to
actually look up the respective drm_device for a given drm_dp_aux struct.
This will also allow us to transition over to using the drm_dbg_*() helpers
for debug message printing, as we'll finally have a drm_device to reference
for doing so.
Note that there is one limitation with this - because some DP AUX adapters
exist as platform devices which are initialized independently of their
respective DRM devices, one cannot rely on drm_dp_aux->drm_dev to always be
non-NULL until drm_dp_aux_register() has been called. We make sure to point
this out in the documentation for struct drm_dp_aux.
v3:
* Add WARN_ON_ONCE() to drm_dp_aux_register() if drm_dev isn't filled out
Signed-off-by: Lyude Paul <lyude@redhat.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-4-lyude@redhat.com
Reviewed-by: Dave Airlie <airlied@redhat.com>
As single statement conditionals do not need to be wrapped around
braces, the unnecessary braces can be removed.
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/gpu/drm/radeon/atombios_dp.c: In function radeon_dp_get_panel_mode:
drivers/gpu/drm/radeon/atombios_dp.c:415:36: warning: variable dig_connector set but not used [-Wunused-but-set-variable]
It is not used since commit 379dfc25e2 ("drm/radeon/dp:
switch to the common i2c over aux code")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Drop use of drmP.h in remaining .c files.
To ease review a little the drmP.h removal was divided in two commits.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190608080241.4958-8-sam@ravnborg.org
The function for byteswapping the data send to/from atombios was buggy for
num_bytes not divisible by four. The function must be aware of the fact
that after byte-swapping the u32 units, valid bytes might end up after the
num_bytes boundary.
This patch was tested on kernel 3.12 and allowed us to sucesfully use
DisplayPort on and Radeon SI card. Namely it fixed the link training and
EDID readout.
The function is patched both in radeon and amd drivers, since the functions
and the fixes are identical.
Signed-off-by: Roman Kapl <rka@sysgo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
It's not used outside this file any longer.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When this code was written, we didn't retry DP aux transactions on any
error, which required retrying important transactions like this in
individual drivers. Since that's no longer the case, retrying here is
not necessary. As well, we retry any aux transaction on any error 32
times. 7 * 32 = 224, which means this loop causes us to retry grabbing
the dpcd 224 times. This is definitely far more then we actually need to
do.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Lyude <cpaul@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Switch the order of the loops to walk the rates on the top
so we exhaust all DP 1.1 rate/lane combinations before trying
DP 1.2 rate/lane combos.
This avoids selecting rates that are supported by the monitor,
but not the connector leading to valid modes getting rejected.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=95206
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
A few other misc cleanups and bug fixes for 4.6. Highlights:
- unify endian handling in powerplay
- powerplay fixes
- fix a regression in 4.5 on boards with no display connectors
- fence cleanups and locking fixes
- whitespace cleanups and code refactoring in radeon
* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux: (35 commits)
drm/amdgpu/gfx7: add MTYPE definition
drm/amdgpu: removing BO_VAs shouldn't be interruptible
drm/amd/powerplay: show uvd/vce power gate enablement for tonga.
drm/amd/powerplay: show uvd/vce power gate info for fiji
drm/amdgpu: use sched fence if possible
drm/amdgpu: move ib.fence to job.fence
drm/amdgpu: give a fence param to ib_free
drm/amdgpu: include the right version of gmc header files for iceland
drm/radeon: fix indentation.
drm/amd/powerplay: add uvd/vce dpm enabling flag to fix the performance issue for CZ
drm/amdgpu: switch back to 32bit hw fences v2
drm/amdgpu: remove amdgpu_fence_is_signaled
drm/amdgpu: drop the extra fence range check v2
drm/amdgpu: signal fences directly in amdgpu_fence_process
drm/amdgpu: cleanup amdgpu_fence_wait_empty v2
drm/amdgpu: keep all fences in an RCU protected array v2
drm/amdgpu: add number of hardware submissions to amdgpu_fence_driver_init_ring
drm/amdgpu: RCU protected amd_sched_fence_release
drm/amdgpu: RCU protected amdgpu_fence_release
drm/amdgpu: merge amdgpu_fence_process and _activity
...
I hate doing this but it hurts my eyes to go over code that does not
comply with indentation rules. Only thing that is not only space change
is in atom.c all other files are space indentation issues.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When I fixed the dp rate selection in:
092c96a8ab
drm/radeon: fix dp link rate selection (v2)
I accidently dropped the special handling for NUTMEG
DP bridge chips. They require a fixed link rate.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Ken Moffat <zarniwhoop@ntlworld.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Need to properly handle the max link rate in the dpcd.
This prevents some cases where 5.4 Ghz is selected when
it shouldn't be.
v2: simplify logic, add array bounds check
Reviewed-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
When we get an i2c defer or short ack for i2c-over-aux write we need
to switch to WRITE_STATUS_UPDATE to poll for the completion of the
original request.
Looks like radeon doesn't do anything special with the request type,
so hopefully just treating it the same as a i2c write is enough.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
AUX addresses are 20 bits long. Send out the entire address instead of
just the low 16 bits.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJVa7zvAAoJEHm+PkMAQRiGtfMIAILs3sxFtrC1hApgcfRLF/7z
K34bwTRqErzqUO/orTwakEr9kSIpIL0zIPSryTCOTPZLfMGkQjhHXO3KR/DSbbTV
MZ8y/BM/yelFA/Np+1LjbiYjTNRnTRvCoaQihkIH8Rn02g7ob9HyL4gIGKpuGFcZ
04GacL2cgChqsRSACdNef948jCoJXKgcuDpe39DXphDWZnBKNZ3HFuJ6bryGJf9A
1/eCI4is85BNwKPemQUYR0xx83UIzDfrghatZP2mOCDDSA2MNg8HNxLTd12LGoQD
tfgX4B7aftzW9Y7GSEDfZ0IKm2NRzgPmCVj6PjVR/iI0lIK4Aq0Z/lDJxxEq3XQ=
=AJM5
-----END PGP SIGNATURE-----
Merge tag 'v4.1-rc6' into drm-next
Linux 4.1-rc6
backmerge 4.1-rc6 as some of the later pull reqs are based on newer bases
and I'd prefer to do the fixup myself.
The atombios tables have an unfortunate restriction on only
being able to write 12 bytes, MST really wants 16-bytes here,
and since the hw can do it, we should just write directly to it.
This uses a module option to allow for it now, and maybe
we should provide the old code as a fallback for a while.
v2: (agd5f)
- move registers to a proper register header
- only enable on DCE5+
- enable by default on DCE5+
- Switch pad to aux mode before using it
- reformat instance handling to better match the
rest of the driver
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The atom aux param interface only supports 4 bits for
the total write transfer size (header + payload). This
limits us to 12 bytes of payload rather than 16. Add a
check for this. Reads are not affected.
v2: switch to WARN_ON_ONCE
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Don't restrict it to just eDP panels. Some LVDS bridge chips require
this. Fixes blank panels on resume on certain laptops. Noticed
by mrnuke on IRC.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=42960
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The check was already in place in the dp mode_valid check, but
radeon_dp_get_dp_link_clock() never returned the high clock
mode_valid was checking for because that function clipped the
clock based on the hw capabilities. Add an explicit check
in the mode_valid function.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=87172
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc:stable@vge.kernel.org
While developing MST support I noticed I often got the wrong data
back from a transaction, in a racy fashion. I noticed the scratch
space wasn't locked against concurrent users.
Based on a patch by Alex, but I've made it a bit more obvious when
things are locked.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
- final bits (again) for the rotation support (Sonika Jindal)
- support bl_power in the intel backlight (Jani)
- vdd handling improvements from Ville
- i830M fixes from Ville
- piles of prep work all over to make skl enabling just plug in (Damien, Sonika)
- rename DP training defines to reflect latest edp standards, this touches all
drm drivers supporting DP (Sonika Jindal)
- cache edids during single detect cycle to avoid re-reading it for e.g. audio,
from Chris
- move w/a for registers which are stored in the hw context to the context init
code (Arun&Damien)
- edp panel power sequencer fixes, helps chv a lot (Ville)
- piles of other chv fixes all over
- much more paranoid pageflip handling with stall detection and better recovery
from Chris
- small things all over, as usual
* tag 'drm-intel-next-2014-09-05' of git://anongit.freedesktop.org/drm-intel: (114 commits)
drm/i915: Update DRIVER_DATE to 20140905
drm/i915: Decouple the stuck pageflip on modeset
drm/i915: Check for a stalled page flip after each vblank
drm/i915: Introduce a for_each_plane() macro
drm/i915: Rewrite ABS_DIFF() in a safer manner
drm/i915: Add comments explaining the vdd on/off functions
drm/i915: Move DP port disable to post_disable for pch platforms
drm/i915: Enable DP port earlier
drm/i915: Turn on panel power before doing aux transfers
drm/i915: Be more careful when picking the initial power sequencer pipe
drm/i915: Reset power sequencer pipe tracking when disp2d is off
drm/i915: Track which port is using which pipe's power sequencer
drm/i915: Fix edp vdd locking
drm/i915: Reset the HEAD pointer for the ring after writing START
drm/i915: Fix unsafe vma iteration in i915_drop_caches
drm/i915: init sprites with univeral plane init function
drm/i915: Check of !HAS_PCH_SPLIT() in PCH transcoder funcs
drm/i915: Use HAS_GMCH_DISPLAY un underrun reporting code
drm/i915: Use IS_BROADWELL() instead of IS_GEN8() in forcewake code
drm/i915: Don't call gen8_fbc_sw_flush() on chv
...
There is no need to use hex_dump_to_buffer() since we have a kernel helper to
dump up to 64 bytes just via printk(). In our case the actual size is 15 bytes.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Rename the defines to have levels instead of values for vswing and
pre-emph levels as the values may differ in other scenarios like low vswing of
eDP1.4 where the values are different.
Done using following cocci patch for each define:
@@
@@
# define DP_TRAIN_VOLTAGE_SWING_1200 (3 << 0)
+ # define DP_TRAIN_VOLTAGE_SWING_LEVEL_3 (0 << 0)
...
Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
If there are error flags in the aux transaction return
-EIO rather than -EBUSY. -EIO restarts the whole transaction
while -EBUSY jus retries. Fixes problematic aux transfers.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=80684
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Merge drm-fixes into drm-next.
Both i915 and radeon need this done for later patches.
Conflicts:
drivers/gpu/drm/drm_crtc_helper.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_gem_execbuffer.c
drivers/gpu/drm/i915/i915_gem_gtt.c
This should avoid races between connector probing and HPD
irqs in the future, currently mode_config.mutex blocks this
possibility.
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
The i2c and aux buses use the same pads so add
a mutex to protect access to the pads.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Check to make sure the transaction succeeded before
using the register value. Fixes occasional link training
problems.
Noticed-by: Sergei Antonov <saproj@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
The hpd (hot plug detect) pin assignment got lost
in the conversion to to the common i2c over aux
code. Without this information, aux transactions
do not work properly. Fixes DP failures.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Needed for proper i2c over aux handling for certain
monitors and configurations (e.g., dp bridges or
adapters).
v2: add comments clarifying tx_size setting.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Replace the radeon specific version with the generic version.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Switch to the new dp helpers. The main difference is
that the DP helpers don't allow an adjustable delay in
the aux transaction, but I don't know that this is
necessary.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
We need a special packet for the start and end of the
transaction.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
According to the DP 1.1 spec, the sink must power
up within 1ms. Noticed while reviewing Thierry's
drm/dp patches.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
As per the DP1.2 spec. Noticed while reviewing
Thierry's drm/dp patches. Also bump native aux
retries to 7 for consistency.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The current values seem to be defined in a format that's specific to the
i915, gma500 and radeon drivers. To make this more generally useful, use
the values as defined in the specification.
While at it, prefix the constants with DP_ for improved namespacing.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Thomas Zimmermann