Commit Graph

3528 Commits

Author SHA1 Message Date
Gerd Hoffmann
1cad629257 drm/shmem: add support for per object caching flags.
Add map_cached bool to drm_gem_shmem_object, to request cached mappings
on a per-object base.  Check the flag before adding writecombine to
pgprot bits.

Cc: stable@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Guillaume Gardet <Guillaume.Gardet@arm.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200226154752.24328-2-kraxel@redhat.com
2020-02-27 13:54:38 +01:00
Nirmoy Das
2639f453f2 drm/amdgpu: fix doc by clarifying sched_list definition
expand sched_list definition for better understanding.
Also fix a typo atleast -> at least

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-27 16:46:44 -05:00
Dave Airlie
3d4743131b Linux 5.5-rc7
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Backmerge v5.5-rc7 into drm-next

msm needs 5.5-rc4, go to the latest.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-01-20 11:42:57 +10:00
Dave Airlie
df95968ff7 Merge tag 'amd-drm-next-5.6-2020-01-17' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.6-2020-01-17:

amdgpu:
- Fix 32 bit harder
- Powerplay cleanups
- VCN fixes for Arcturus
- RAS fixes
- eDP/DP fixes
- SR-IOV fixes
- Re-enable S/G display for PCO/RV2
- Free stolen memory after init on gmc10
- DF hashing optimizations for Arcturus
- Properly handle runtime pm in sysfs and debugfs
- Unify more GC programming between amdgpu and amdkfd
- Golden settings updates for gfx10
- GDDR6 training fixes
- Freesync fixes
- DSC fixes
- TMDS fixes
- Renoir USB-C fixes
- DC dml updates from hw team
- Pollock support
- Mutex init regresson fix

amdkfd:
- Unify more GC programming between amdgpu and amdkfd
- Use KIQ to setup HIQ rather than using MMIO

scheduler:
- Documentation fixes
- Improve job distribution with load sharing

drm:
- DP MST fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200117213625.4722-1-alexander.deucher@amd.com
2020-01-18 13:00:24 +10:00
Nirmoy Das
9e3e90c50d drm/scheduler: fix documentation by replacing rq_list with sched_list
This also replaces old artifacts with a correct one in drm_sched_entity_init()
declaration

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-16 13:41:00 -05:00
Nirmoy Das
56822db194 drm/scheduler: improve job distribution with multiple queues
This patch uses score based logic to select a new rq for better
loadbalance between multiple rq/scheds instead of num_jobs.

Below are test results after running amdgpu_test from mesa drm

Before this patch:

sched_name     num of many times it got scheduled
=========      ==================================
sdma0          314
sdma1          32
comp_1.0.0     56
comp_1.0.1     0
comp_1.1.0     0
comp_1.1.1     0
comp_1.2.0     0
comp_1.2.1     0
comp_1.3.0     0
comp_1.3.1     0
After this patch:

sched_name     num of many times it got scheduled
=========      ==================================
sdma0          216
sdma1          185
comp_1.0.0     39
comp_1.0.1     9
comp_1.1.0     12
comp_1.1.1     0
comp_1.2.0     12
comp_1.2.1     0
comp_1.3.0     12
comp_1.3.1     0

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-16 13:37:54 -05:00
Wayne Lin
5a64967a2f drm/dp_mst: Have DP_Tx send one msg at a time
[Why]
Noticed this while testing MST with the 4 ports MST hub from
StarTech.com. Sometimes can't light up monitors normally and get the
error message as 'sideband msg build failed'.

Look into aux transactions, found out that source sometimes will send
out another down request before receiving the down reply of the
previous down request. On the other hand, in drm_dp_get_one_sb_msg(),
current code doesn't handle the interleaved replies case. Hence, source
can't build up message completely and can't light up monitors.

[How]
For good compatibility, enforce source to send out one down request at a
time. Add a flag, is_waiting_for_dwn_reply, to determine if the source
can send out a down request immediately or not.

- Check the flag before calling process_single_down_tx_qlock to send out
a msg
- Set the flag when successfully send out a down request
- Clear the flag when successfully build up a down reply
- Clear the flag when find erros during sending out a down request
- Clear the flag when find errors during building up a down reply
- Clear the flag when timeout occurs during waiting for a down reply
- Use drm_dp_mst_kick_tx() to try to send another down request in queue
at the end of drm_dp_mst_wait_tx_reply() (attempt to send out messages
in queue when errors occur)

Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200113093649.11755-1-Wayne.Lin@amd.com
2020-01-15 17:01:21 -05:00
Dave Airlie
71e7274066 Merge tag 'drm-intel-next-2020-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
Final drm/i915 features for v5.6:
- DP MST fixes (José)
- Fix intel_bw_state memory leak (Pankaj Bharadiya)
- Switch context id allocation to xarray (Tvrtko)
- ICL/EHL/TGL workarounds (Matt Roper, Tvrtko)
- Debugfs for LMEM details (Lukasz Fiedorowicz)
- Prefer platform acronyms over codenames in symbols (Lucas)
- Tiled and port sync mode fixes for fbdev and DP (Manasi)
- DSI panel and backlight enable GPIO fixes (Hans de Goede)
- Relax audio min CDCLK requirements on non-GLK (Kai Vehmanen)
- Plane alignment and dimension check fixes (Imre)
- Fix state checks for PSR (José)
- Remove ICL+ clock gating programming (José)
- Static checker fixes around bool usage (Ma Feng)
- Bring back tests for self-contained headers in i915 (Masahiro Yamada)
- Fix DP MST disable sequence (Ville)
- Start converting i915 to the new drm device based logging macros (Wambui Karuga)
- Add DSI VBT I2C sequence execution (Vivek Kasireddy)
- Start using function pointers and ops structs in uc code (Michal)
- Fix PMU names to not use colons or dashes (Tvrtko)
- TGL media decompression support (DK, Imre)
- Split i915_gem_gtt.[ch] to more manageable chunks (Matthew Auld)
- Create dumb buffers in LMEM where available (Ram)
- Extend mmap support for LMEM (Abdiel)
- Selftest updates (Chris)
- Hack bump up CDCLK on TGL to avoid underruns (Stan)
- Use intel_encoder and intel_connector more instead of drm counterparts (Ville)
- Build error fixes (Zhang Xiaoxu)
- Fixes related to GPU and engine initialization/resume (Chris)
- Support for prefaulting discontiguous objects (Abdiel)
- Support discontiguous LMEM object maps (Chris)
- Various GEM and GT improvements and fixes (Chris)
- Merge pinctrl dependencies branch for the DSI GPIO updates (Jani)
- Backmerge drm-next for new logging macros (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87sgkil0v9.fsf@intel.com
2020-01-15 16:57:54 +10:00
Dave Airlie
688486a49c Merge tag 'amd-drm-next-5.6-2020-01-10-dp-mst-dsc' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.6-2020-01-10-dp-mst-dsc:

drm:
- Add MST helper for PBN calculation of DSC modes
- Parse FEC caps on MST ports
- Add MST DPCD R/W functions
- Add MST helpers for virtual DPCD aux
- Add MST HUB quirk
- Add MST DSC enablement helpers

amdgpu:
- Enable MST DSC
- Add fair share algo for DSC bandwidth calcs
- Fix for 32 bit builds

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200110214328.308549-1-alexander.deucher@amd.com
2020-01-13 17:14:34 +10:00
Dave Airlie
d5d88cd6ee Merge tag 'amd-drm-next-5.6-2020-01-09' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.6-2020-01-09:

amdgpu:
- Enable DCN support on POWER
- Enable GFXOFF for Raven1 refresh
- Clean up MM engine idle handlers
- HDMI 2.0 audio fixes
- Fixes for some 10 bpc EDP panels
- Watermark fixes for renoir
- SR-IOV fixes
- Runtime pm robustness fixes
- Arcturus VCN fixes
- RAS fixes
- BACO fixes for Arcturus
- Stable pstate fixes for swSMU
- HDCP fixes
- PSP cleanup
- HDMI fixes
- Misc cleanups

amdkfd:
- Spread interrupt work across cores to reduce latency
- Topology fixes for APUs
- GPU reset improvements

UAPI:
- Enable DRIVER_SYNCOBJ_TIMELINE for vulkan
- Return better error values for kfd process ioctl

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200109230338.8022-1-alexander.deucher@amd.com
2020-01-13 16:49:02 +10:00
Dave Airlie
79f88da22b drm-misc-next for v5.6:
UAPI Changes:
 
 Cross-subsystem Changes:
 - Convert simple panel bindings to a template.
 
 Core Changes:
 - Revert drm-bridge-state changes, it causes a dependency error
   between drm and drm_kms_helper.
 - Fix when disabling crc's.
 - Assorted Kconfig fixes.
 
 Driver Changes:
 - Add ddc symlinks to more drivers.
 - Fix chained bridge handling in exynos and vc4.
 - More clock rate fixes in sun4i.
 - Add support for AUO B116XAK01, GiantPlus GPM940B0, Sony ACX424AKP,
   BOE NV140FHM-N49, Satoz SAT050AT40H12R2 and Sharp LS020B1DD01D panels.
 - Assorted small bugfixes.
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Merge tag 'drm-misc-next-2020-01-10' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.6:

UAPI Changes:

Cross-subsystem Changes:
- Convert simple panel bindings to a template.

Core Changes:
- Revert drm-bridge-state changes, it causes a dependency error
  between drm and drm_kms_helper.
- Fix when disabling crc's.
- Assorted Kconfig fixes.

Driver Changes:
- Add ddc symlinks to more drivers.
- Fix chained bridge handling in exynos and vc4.
- More clock rate fixes in sun4i.
- Add support for AUO B116XAK01, GiantPlus GPM940B0, Sony ACX424AKP,
  BOE NV140FHM-N49, Satoz SAT050AT40H12R2 and Sharp LS020B1DD01D panels.
- Assorted small bugfixes.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1e8d4944-68d7-0df3-f39b-31f6fba22a2a@linux.intel.com
2020-01-13 16:34:39 +10:00
David (Dingchen) Zhang
c908b1c4bb drm: add dp helper to initialize remote aux channel.
[why]
We need to minimally initialize the remote aux channel, e.g. the
crc work struct of remote aux to dump the sink's DPRX CRCs in MST
setup.

[how]
Add helper that only initializes the crc work struct of the remote
aux, hooke crc work queue to 'drm_dp_aux_crc_work'. Then call this
helper in DP MST port initialization.
This, plus David Francis' patch [1], fix the issue of MST remote
aux DPCD CRCs read.

[1] https://patchwork.kernel.org/patch/11217941/

Cc: Leo Li <sunpeng.li@amd.com>
Cc: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: David (Dingchen) Zhang <dingchen.zhang@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:48 -05:00
Mikita Lipski
8ec046716c drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs
[why]
Whenever a connector on an MST network is changed or
undergoes a modeset, the DSC configs for each stream on that
topology will be recalculated. This can change their required
bandwidth, requiring a full reprogramming, as though a modeset
was performed, even if that stream did not change timing.

[how]
Adding helper to trigger modesets on MST DSC connectors
by setting mode_changed flag on CRTCs in the same topology
as affected connector

v2: use drm_dp_mst_dsc_aux_for_port function to verify
if the port is DSC capable

v3: - added _must_check attribute
    - removed topology manager check
    - fix typos and indentations

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:48 -05:00
Mikita Lipski
cd82d82cbc drm/dp_mst: Add branch bandwidth validation to MST atomic check
[why]
Adding PBN attribute to drm_dp_vcpi_allocation structure to
keep track of how much bandwidth each Port requires.
Adding drm_dp_mst_atomic_check_bw_limit to verify that
state's bandwidth needs doesn't exceed available bandwidth.
The funtion is called in drm_dp_mst_atomic_check after
drm_dp_mst_atomic_check_topology_state to fully verify that
the proposed topology is supported.

v2: Fixing some typos and indenting
v3: Return correct error enums if no bw space available

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:47 -05:00
Mikita Lipski
8afb7e6afa drm/dp_mst: Add DSC enablement helpers to DRM
Adding a helper function to be called by
drivers outside of DRM to enable DSC on
the MST ports.

Function is called to recalculate VCPI allocation
if DSC is enabled and raise the DSC flag to enable.
In case of disabling DSC the flag is set to false
and recalculation of VCPI slots is expected to be done
in encoder's atomic_check.

v2: squash separate functions into one and call it per
port
v3: Fix comment typos

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:47 -05:00
Mikita Lipski
1c6c1cb5af drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
[why]
For DSC case we cannot use topology manager's PBN divider
variable. The default divider does not take FEC into account.
Therefore the driver has to calculate its own divider based
on the link rate and lane count its handling, as it is hw specific.

[how]
Pass pbn_div as an argument, which is used if its more than
zero, otherwise default topology manager's pbn_div will be used.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:47 -05:00
Mikita Lipski
5b03f9d868 drm/dp_mst: Add new quirk for Synaptics MST hubs
Synaptics DP1.4 hubs (BRANCH_ID 0x90CC24) do not
support virtual DPCD registers, but do support DSC.
The DSC caps can be read from the physical aux,
like in SST DSC. These hubs have many different
DEVICE_IDs.  Add a new quirk to detect this case.

v2: Fix error when checking return of drm_dp_read_desc

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:46 -05:00
David Francis
c2bc1b6eab drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux
Add drm_dp_mst_dsc_aux_for_port. To enable DSC, the DSC_ENABLED
register might have to be written on the leaf port's DPCD,
its parent's DPCD, or the MST manager's DPCD. This function
finds the correct aux for the job.

As part of this, add drm_dp_mst_is_virtual_dpcd. Virtual DPCD
is a DP feature new in DP v1.4, which exposes certain DPCD
registers on virtual ports.

v2: Remember to unlock mutex on all paths
v3: Refactor to match coding style and increase brevity
v4: - Check DSC capable MST sink connected directly to the device.
    - Check branch's port_parent to be set

Cc: Lyude Paul <lyude@redhat.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:46 -05:00
David Francis
a3c2b0ffc0 drm/dp_mst: Parse FEC capability on MST ports
As of DP1.4, ENUM_PATH_RESOURCES returns a bit indicating
if FEC can be supported up to that point in the MST network.

The bit is the first byte of the ENUM_PATH_RESOURCES ack reply,
bottom-most bit (refer to section 2.11.9.4 of DP standard,
v1.4)

That value is needed for FEC and DSC support

Store it on drm_dp_mst_port

Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:46 -05:00
David Francis
dc48529fb1 drm/dp_mst: Add PBN calculation for DSC modes
With DSC, bpp can be fractional in multiples of 1/16.

Change drm_dp_calc_pbn_mode to reflect this, adding a new
parameter bool dsc. When this parameter is true, treat the
bpp parameter as having units not of bits per pixel, but
1/16 of a bit per pixel

v2: Don't add separate function for this
v3: In the equation divide bpp by 16 as it is expected
not to leave any remainder
v4: Added DSC test parameters for selftest

Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: David Francis <David.Francis@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-01-09 18:07:46 -05:00
Benjamin Gaignard
9d10fc2649 drm/fb-cma-helpers: Fix include issue
Exported functions prototypes are missing in drm_fb_cma_helper.c
Include drm_fb_cma_helper to fix that issue.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20191119105753.32363-1-benjamin.gaignard@st.com
2020-01-09 17:33:41 +01:00
Jani Nikula
ec027b33c8 Merge drm/drm-next into drm-intel-next-queued
Sync with drm-next to get the new logging macros, among other things.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-01-09 17:19:12 +02:00
Dave Airlie
a566696cf9 drm-misc-next for v5.6:
UAPI Changes:
 - Allow overriding number of bootup penguins in fbcon using fbcon=logo-count:n.
 
 Cross-subsystem Changes:
 - fbdev fixes for mmp, and make it work with CONFIG_COMPILE_TEST.
 - Use devm_platform_ioremap_resource in fbdev drivers.
 - Various small fbdev fixes.
 
 Core Changes:
 - Support scanline alignment for dumb buffers.
 - Add atomic_check() hook to bridge ops, to support bus format negotiation.
 - Add gem_create_object() to vram helpers.
 
 Driver Changes:
 - Rockchip: Add support for PX30.
 - Use generic fbdev code and dumb helpers in hisilicon/hibmc.
 - Add support for Leadtek LTK500HD1829 panel, and xinpeng XPP055C272.
 - Clock fixes for atmel-hlcdc.
 - Various smaller fixes to all drivers.
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Merge tag 'drm-misc-next-2020-01-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.6:

UAPI Changes:
- Allow overriding number of bootup penguins in fbcon using fbcon=logo-count:n.

Cross-subsystem Changes:
- fbdev fixes for mmp, and make it work with CONFIG_COMPILE_TEST.
- Use devm_platform_ioremap_resource in fbdev drivers.
- Various small fbdev fixes.

Core Changes:
- Support scanline alignment for dumb buffers.
- Add atomic_check() hook to bridge ops, to support bus format negotiation.
- Add gem_create_object() to vram helpers.

Driver Changes:
- Rockchip: Add support for PX30.
- Use generic fbdev code and dumb helpers in hisilicon/hibmc.
- Add support for Leadtek LTK500HD1829 panel, and xinpeng XPP055C272.
- Clock fixes for atmel-hlcdc.
- Various smaller fixes to all drivers.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8eff1e3f-ef0a-2dd9-9a14-6273b1d6f963@linux.intel.com
2020-01-09 10:53:58 +10:00
Laurent Pinchart
528d06d41b drm: of: Fix linking when CONFIG_OF is not set
The new helper drm_of_lvds_get_dual_link_pixel_order() introduced in
commit 6529007522 has a fallback stub when CONFIG_OF is not set, but
the stub is declared in drm_of.h without a static inline. This causes
multiple definitions of the function to be linked when the CONFIG_OF
option isn't set. Fix it by making the stub static inline.

Fixes: 6529007522 ("drm: of: Add drm_of_lvds_get_dual_link_pixel_order")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191219103703.8547-1-laurent.pinchart+renesas@ideasonboard.com
2020-01-09 10:40:58 +10:00
Boris Brezillon
0991263523 Revert "drm/bridge: Add a drm_bridge_state object"
This reverts commit 6ed7e9625f ("drm/bridge: Add a drm_bridge_state
object") which introduced a circular dependency between drm.ko and
drm_kms_helper.ko. Looks like the helper/core split is not appropriate
and fixing that is not simple.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-6-boris.brezillon@collabora.com
2020-01-08 00:34:34 +01:00
Boris Brezillon
b470743bed Revert "drm/bridge: Patch atomic hooks to take a drm_bridge_state"
This reverts commit f7619a58ef ("drm/bridge: Patch atomic hooks to
take a drm_bridge_state"). Commit 6ed7e9625f ("drm/bridge: Add a
drm_bridge_state object") introduced a circular dependency between
drm.ko and drm_kms_helper.ko which uncovered a misdesign in how the
whole thing was implemented. Let's revert all patches depending on the
bridge_state infrastructure for now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-5-boris.brezillon@collabora.com
2020-01-08 00:34:28 +01:00
Boris Brezillon
8de679abc8 Revert "drm/bridge: Add an ->atomic_check() hook"
This reverts commit b86d895524 ("drm/bridge: Add an ->atomic_check()
hook"). Commit 6ed7e9625f ("drm/bridge: Add a drm_bridge_state
object") introduced a circular dependency between drm.ko and
drm_kms_helper.ko which uncovered a misdesign in how the whole thing
was implemented. Let's revert all patches depending on the bridge_state
infrastructure for now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-4-boris.brezillon@collabora.com
2020-01-08 00:34:21 +01:00
Boris Brezillon
3dfbf2d3d0 Revert "drm/bridge: Add the necessary bits to support bus format negotiation"
This reverts commit e351e4d5ea ("drm/bridge: Add the necessary bits
to support bus format negotiation"). Commit 6ed7e9625f ("drm/bridge:
Add a drm_bridge_state object") introduced a circular dependency
between drm.ko and drm_kms_helper.ko which uncovered a misdesign in
how the whole thing was implemented. Let's revert all patches depending
on the bridge_state infrastructure for now.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-3-boris.brezillon@collabora.com
2020-01-08 00:33:55 +01:00
Dhinakaran Pandiyan
a7007efa67 drm/fb: Extend format_info member arrays to handle four planes
addfb() uAPI has supported four planes for a while now, make format_info
compatible with that.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Mika Kahola <mika.kahola@intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191231233756.18753-7-imre.deak@intel.com
2020-01-07 13:16:08 +02:00
Thomas Zimmermann
a4d46a8e26 drm/vram-helper: Remove BO device from public interface
TTM is an implementation detail of the VRAM helpers and therefore
shouldn't be exposed to the callers. There's only one correct value
for the BO device anyway, which is the one stored in the DRM device.

So remove struct ttm_bo_device from the VRAM-helper interface and
use the device's VRAM manager unconditionally. The GEM initializer
function fails if the VRAM manager has not been initialized.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-8-tzimmermann@suse.de
2020-01-07 11:53:19 +01:00
Thomas Zimmermann
ebe9428b3f drm/vram-helper: Remove interruptible flag from public interface
The flag 'interruptible', which is passed to various functions,
is always set to be false. Remove it and hard-code the value.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106125745.13797-7-tzimmermann@suse.de
2020-01-07 11:53:19 +01:00
Boris Brezillon
e351e4d5ea drm/bridge: Add the necessary bits to support bus format negotiation
drm_bridge_state is extended to describe the input and output bus
configurations. These bus configurations are exposed through the
drm_bus_cfg struct which encodes the configuration of a physical
bus between two components in an output pipeline, usually between
two bridges, an encoder and a bridge, or a bridge and a connector.

The bus configuration is stored in drm_bridge_state separately for
the input and output buses, as seen from the point of view of each
bridge. The bus configuration of a bridge output is usually identical
to the configuration of the next bridge's input, but may differ if
the signals are modified between the two bridges, for instance by an
inverter on the board. The input and output configurations of a
bridge may differ if the bridge modifies the signals internally,
for instance by performing format conversion, or*modifying signals
polarities.

Bus format negotiation is automated by the core, drivers just have
to implement the ->atomic_get_{output,input}_bus_fmts() hooks if they
want to take part to this negotiation. Negotiation happens in reverse
order, starting from the last element of the chain (the one directly
connected to the display) up to the first element of the chain (the one
connected to the encoder).
During this negotiation all supported formats are tested until we find
one that works, meaning that the formats array should be in decreasing
preference order (assuming the driver has a preference order).

Note that the bus format negotiation works even if some elements in the
chain don't implement the ->atomic_get_{output,input}_bus_fmts() hooks.
In that case, the core advertises only MEDIA_BUS_FMT_FIXED and lets
the previous bridge element decide what to do (most of the time, bridge
drivers will pick a default bus format or extract this piece of
information from somewhere else, like a FW property).

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
[narmstrong: fixed doc in include/drm/drm_bridge.h:69 fmt->format]
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-5-narmstrong@baylibre.com
2020-01-07 10:11:34 +01:00
Boris Brezillon
b86d895524 drm/bridge: Add an ->atomic_check() hook
So that bridge drivers have a way to check/reject an atomic operation.
The drm_atomic_bridge_chain_check() (which is just a wrapper around
the ->atomic_check() hook) is called in place of
drm_bridge_chain_mode_fixup() (when ->atomic_check() is not implemented,
the core falls back on ->mode_fixup(), so the behavior should stay
the same for existing bridge drivers).

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-4-narmstrong@baylibre.com
2020-01-07 10:11:15 +01:00
Boris Brezillon
f7619a58ef drm/bridge: Patch atomic hooks to take a drm_bridge_state
This way the drm_bridge_funcs interface is consistent with the rest of
the subsystem.

The only driver implementing those hooks (analogix DP) is patched too.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
[narmstrong: renamed state as old_bridge_state in rcar_lvds_atomic_disable]
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-3-narmstrong@baylibre.com
2020-01-07 10:10:59 +01:00
Boris Brezillon
6ed7e9625f drm/bridge: Add a drm_bridge_state object
One of the last remaining objects to not have its atomic state.

This is being motivated by our attempt to support runtime bus-format
negotiation between elements of the bridge chain.
This patch just paves the road for such a feature by adding a new
drm_bridge_state object inheriting from drm_private_obj so we can
re-use some of the existing state initialization/tracking logic.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jonas Karlman <jonas@kwiboo.se>
Link: https://patchwork.freedesktop.org/patch/msgid/20200106143409.32321-2-narmstrong@baylibre.com
2020-01-07 10:10:49 +01:00
Thomas Zimmermann
9870732786 drm/vram: Support scanline alignment for dumb buffers
Adding the pitch alignment as an argument to
drm_gem_vram_fill_create_dumb() allows to align scanlines to certain
offsets. A value of 0 disables scanline pitches.

v3:
	* only do power-of-2 test if pitch_align given; fails otherwise
	* mgag200: call drm_gem_vram_fill_create_dumb() with pitch_align
v2:
	* split of patch from related hibmc changes
	* test if scanline pitch is power of 2

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191203083819.6643-4-tzimmermann@suse.de
2020-01-06 13:46:03 +01:00
Dave Airlie
f5c547efa1 drm-misc-next for v5.6:
UAPI Changes:
 - Commandline parser: Add support for panel orientation, and per-mode options.
 - Fix IOCTL naming for dma-buf heaps.
 
 Cross-subsystem Changes:
 - Rename DMA_HEAP_IOC_ALLOC to DMA_HEAP_IOCTL_ALLOC before it becomes abi.
 - Change DMA-BUF system-heap's name to system.
 - Fix leak in error handling in dma_heap_ioctl(), and make a symbol static.
 - Fix udma-buf cpu access.
 - Fix ti devicetree bindings.
 
 Core Changes:
 - Add CTA-861-G modes with VIC >= 193.
 - Change error handling and remove bug_on in *drm_dev_init.
 - Export drm_panel_of_backlight() correctly once more.
 - Add support for lvds decoders.
 - Convert drm/client and drm/(gem-,)fb-helper to drm-device based logging and update logging todo.
 
 Driver Changes:
 - Add support for dsi/px30 to rockchip.
 - Add fb damage support to virtio.
 - Use dma_resv locking wrappers in vc4, msm, etnaviv.
 - Make functions in virtio static, and perform some simplifications.
 - Add suspend support to sun4i.
 - Add A64 mipi dsi support to sun4i.
 - Add runtime pm suspend to komeda.
 - Associated driver fixes.
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Merge tag 'drm-misc-next-2020-01-02' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.6:

UAPI Changes:
- Commandline parser: Add support for panel orientation, and per-mode options.
- Fix IOCTL naming for dma-buf heaps.

Cross-subsystem Changes:
- Rename DMA_HEAP_IOC_ALLOC to DMA_HEAP_IOCTL_ALLOC before it becomes abi.
- Change DMA-BUF system-heap's name to system.
- Fix leak in error handling in dma_heap_ioctl(), and make a symbol static.
- Fix udma-buf cpu access.
- Fix ti devicetree bindings.

Core Changes:
- Add CTA-861-G modes with VIC >= 193.
- Change error handling and remove bug_on in *drm_dev_init.
- Export drm_panel_of_backlight() correctly once more.
- Add support for lvds decoders.
- Convert drm/client and drm/(gem-,)fb-helper to drm-device based logging and update logging todo.

Driver Changes:
- Add support for dsi/px30 to rockchip.
- Add fb damage support to virtio.
- Use dma_resv locking wrappers in vc4, msm, etnaviv.
- Make functions in virtio static, and perform some simplifications.
- Add suspend support to sun4i.
- Add A64 mipi dsi support to sun4i.
- Add runtime pm suspend to komeda.
- Associated driver fixes.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/efc11139-1653-86bc-1b0f-0aefde219850@linux.intel.com
2020-01-03 11:43:44 +10:00
Dave Airlie
3ae3271443 i915 features for v5.6:
- Separate hardware and uapi state (Maarten)
 
 - Expose a number of sprite and plane formats (Ville)
 
 - DDC symlink in HDMI connector sysfs directory (Andrzej Pietrasiewicz)
 
 - Improve obj->mm.lock nesting lock annotation (Daniel)
   (Includes lockdep changes)
 
 - Selftest improvements across the board (Chris)
 
 - ICL/TGL VDSC support on DSI (Jani, Vandita)
 
 - TGL DSB fixes (Animesh, Lucas, Tvrtko)
 
 - VBT parsing improvements and fixes (Lucas, Matt, José, Jani, Dan Carpenter)
 
 - Fix LPSS vs. PMIC PWM backlight use on BYT/CHT (Hans)
   (Includes ACPI+MFD changes)
 
 - Display state, crtc, plane code refactoring (Ville)
 
 - Set opregion chpd value to indicate the driver handles hotplug (Hans de Goede)
 
 - DSI updates and fixes, TGL pipe D support, port mapping (José, Jani, Vandita)
 
 - Make HDCP 2.2 support cover CFL (Juston Li)
 
 - Fix CML PCI IDs and ULT (Shawn Lee)
 
 - CMP-V PCH fix (Imre)
 
 - TGL: Add another TGL PCH ID (James)
 
 - EHL/JSL: Add new PCI IDs (James)
 
 - Rename pipe update tracepoints (Ville)
 
 - Fix FBC on GLK+ (Ville)
 
 - GuC fixes and improvements (Daniele, Don Hiatt, Stuart Summers, Matthew Brost)
 
 - Display debugfs improvements (Ville)
 
 - Hotplug/irq fixes (Matt)
 
 - PSR fixes and improvements (José)
 
 - DRM_I915_GEM_MMAP_OFFSET ioctl (Abdiel)
 
 - Static analysis fixes (Colin Ian King)
 
 - Register sysctl path globally (Venkata Sandeep Dhanalakota)
 
 - Introduce new macros for tracing (Venkata Sandeep Dhanalakota)
 
 - Migrate gt towards intel_uncore_read/write (Andi)
 
 - Add rps frequency translation helpers (Andi)
 
 - Fix TGL transcoder clock off sequence (José)
 
 - Fix TGL port A audio (Kai Vehmanen)
 
 - TGL render decompression (DK)
 
 - GEM/GT improvements and fixes across the board (Chris)
 
 - Couple of backmerges (Jani)
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Merge tag 'drm-intel-next-2019-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

i915 features for v5.6:

- Separate hardware and uapi state (Maarten)

- Expose a number of sprite and plane formats (Ville)

- DDC symlink in HDMI connector sysfs directory (Andrzej Pietrasiewicz)

- Improve obj->mm.lock nesting lock annotation (Daniel)
  (Includes lockdep changes)

- Selftest improvements across the board (Chris)

- ICL/TGL VDSC support on DSI (Jani, Vandita)

- TGL DSB fixes (Animesh, Lucas, Tvrtko)

- VBT parsing improvements and fixes (Lucas, Matt, José, Jani, Dan Carpenter)

- Fix LPSS vs. PMIC PWM backlight use on BYT/CHT (Hans)
  (Includes ACPI+MFD changes)

- Display state, crtc, plane code refactoring (Ville)

- Set opregion chpd value to indicate the driver handles hotplug (Hans de Goede)

- DSI updates and fixes, TGL pipe D support, port mapping (José, Jani, Vandita)

- Make HDCP 2.2 support cover CFL (Juston Li)

- Fix CML PCI IDs and ULT (Shawn Lee)

- CMP-V PCH fix (Imre)

- TGL: Add another TGL PCH ID (James)

- EHL/JSL: Add new PCI IDs (James)

- Rename pipe update tracepoints (Ville)

- Fix FBC on GLK+ (Ville)

- GuC fixes and improvements (Daniele, Don Hiatt, Stuart Summers, Matthew Brost)

- Display debugfs improvements (Ville)

- Hotplug/irq fixes (Matt)

- PSR fixes and improvements (José)

- DRM_I915_GEM_MMAP_OFFSET ioctl (Abdiel)

- Static analysis fixes (Colin Ian King)

- Register sysctl path globally (Venkata Sandeep Dhanalakota)

- Introduce new macros for tracing (Venkata Sandeep Dhanalakota)

- Migrate gt towards intel_uncore_read/write (Andi)

- Add rps frequency translation helpers (Andi)

- Fix TGL transcoder clock off sequence (José)

- Fix TGL port A audio (Kai Vehmanen)

- TGL render decompression (DK)

- GEM/GT improvements and fixes across the board (Chris)

- Couple of backmerges (Jani)

Signed-off-by: Dave Airlie <airlied@redhat.com>

# gpg: Signature made Tue 24 Dec 2019 03:20:48 AM AEST
# gpg:                using RSA key D398079D26ABEE6F
# gpg: Good signature from "Jani Nikula <jani.nikula@intel.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 1565 A65B 77B0 632E 1124  E59C D398 079D 26AB EE6F

# Conflicts:
#	drivers/gpu/drm/i915/display/intel_fbc.c
#	drivers/gpu/drm/i915/gt/intel_lrc.c
#	drivers/gpu/drm/i915/i915_gem.c
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87lfr3rkry.fsf@intel.com
2019-12-27 15:25:04 +10:00
Thierry Reding
42240c90e3 drm/atomic: Spell CRTC consistently
CRTC is an abbreviation and should be all caps in prose. Update all
kerneldoc comments to use a consistent spelling.

v2: remove hunk unrelated to the CRTC spelling fixes

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191206135336.2084564-2-thierry.reding@gmail.com
2019-12-22 11:13:00 +01:00
Thierry Reding
dbe2d2bf79 drm: Fix a couple of typos, punctation and whitespace issues
These are just a couple of things that I came across as I was reading
through the code and comments.

v2: added one more hunk that ended up in the wrong patch

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191206135336.2084564-1-thierry.reding@gmail.com
2019-12-22 11:09:46 +01:00
Andrey Grodzovsky
368fd0aad1 drm: Add Reusable task barrier.
It is used to synchronize N threads at a rendevouz point before execution
of critical code that has to be started by all the threads at approximatly
the same time.

v2: Remove mention of reset use case, improve doc.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-18 16:09:12 -05:00
Nirmoy Das
b3ac17667f drm/scheduler: rework entity creation
Entity currently keeps a copy of run_queue list and modify it in
drm_sched_entity_set_priority(). Entities shouldn't modify run_queue
list. Use drm_gpu_scheduler list instead of drm_sched_rq list
in drm_sched_entity struct. In this way we can select a runqueue based
on entity/ctx's priority for a  drm scheduler.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-12-18 16:09:12 -05:00
Daniel Vetter
66af4a9dda R-Car Display Unit changes:
- Color Management Module support
 - LVDS encoder dual-link support enhancements
 - R8A77980 support
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Merge tag 'du-next-20191218' of git://linuxtv.org/pinchartl/media into drm-next

R-Car Display Unit changes:

- Color Management Module support
- LVDS encoder dual-link support enhancements
- R8A77980 support

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191218151710.GA13830@pendragon.ideasonboard.com
2019-12-18 16:19:26 +01:00
Ville Syrjälä
ab2dd990f4 drm: Add __drm_atomic_helper_crtc_state_reset() & co.
Annoyingly __drm_atomic_helper_crtc_reset() does two
totally separate things:
a) reset the state to defaults values
b) assign the crtc->state pointer

I just want a) without the b) so let's split out part
a) into __drm_atomic_helper_crtc_state_reset(). And
of course we'll do the same thing for planes and connectors.

v2: Fix conn__state vs. conn_state typo (Lucas)
    Make code and kerneldoc match for
    __drm_atomic_helper_plane_state_reset()

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107142417.11107-1-ville.syrjala@linux.intel.com
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-12-18 16:47:34 +02:00
Fabrizio Castro
6529007522 drm: of: Add drm_of_lvds_get_dual_link_pixel_order
An LVDS dual-link connection is made of two links, with even
pixels transitting on one link, and odd pixels on the other
link. The device tree can be used to fully describe dual-link
LVDS connections between encoders and bridges/panels.
The sink of an LVDS dual-link connection is made of two ports,
the corresponding OF graph port nodes can be marked
with either dual-lvds-even-pixels or dual-lvds-odd-pixels,
and that fully describes an LVDS dual-link connection,
including pixel order.

drm_of_lvds_get_dual_link_pixel_order is a new helper
added by this patch, given the source port nodes it
returns DRM_LVDS_DUAL_LINK_EVEN_ODD_PIXELS if the source
port nodes belong to an LVDS dual-link connection, with even
pixels expected to be generated from the first port, and odd
pixels expected to be generated from the second port.
If the new helper returns DRM_LVDS_DUAL_LINK_ODD_EVEN_PIXELS,
odd pixels are expected to be generated from the first port,
and even pixels from the other port.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2019-12-18 02:40:16 +02:00
Andy Shevchenko
4a34a9dcec drm/drm_panel: Fix EXPORT of drm_panel_of_backlight() one more time
The initial commit followed by the fix didn't
take into consideration the case:

CONFIG_DRM_PANEL=y
CONFIG_BACKLIGHT_CLASS_DEVICE=m
CONFIG_DRM_I915=y

where symbol devm_of_find_backlight() is not reachable from DRM subsystem.
Quick fix is to avoid drm_panel_of_backlight() from exporting in such case.

Fixes: 907aa265fd ("drm/drm_panel: fix EXPORT of drm_panel_of_backlight")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191217140721.42432-1-andriy.shevchenko@linux.intel.com
2019-12-17 20:39:33 +01:00
Jani Nikula
fb6c7ab871 drm/print: introduce new struct drm_device based logging macros
Add new struct drm_device based logging macros modeled after the core
kernel device based logging macros. These would be preferred over the
drm printk and struct device based macros in drm code, where possible.

We have existing drm specific struct device based logging functions, but
they are too verbose to use for two main reasons:

 * The names are unnecessarily long, for example DRM_DEV_DEBUG_KMS().

 * The use of struct device over struct drm_device is too generic for
   most users, leading to an extra dereference.

For example:

	DRM_DEV_DEBUG_KMS(drm->dev, "Hello, world\n");

vs.

	drm_dbg_kms(drm, "Hello, world\n");

It's a matter of taste, but the SHOUTING UPPERCASE has been argued to be
less readable than lowercase.

Some names are changed from old DRM names to be based on the core kernel
logging functions. For example, NOTE -> notice, ERROR -> err, DEBUG ->
dbg.

Due to the conflation of DRM_DEBUG and DRM_DEBUG_DRIVER macro use
(DRM_DEBUG is used widely in drivers though it's supposed to be a core
debugging category), they are named as drm_dbg_core and drm_dbg,
respectively.

The drm_err and _once/_ratelimited variants no longer include the
function name in order to be able to use the core device based logging
macros. Arguably this is not a significant change; error messages should
not be so common to be only distinguishable by the function name.

Ratelimited debug logging macros are to be added later.

Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Sean Paul <sean@poorly.run>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191210123050.8799-1-jani.nikula@intel.com
2019-12-17 16:43:20 +02:00
Daniel Vetter
6c56e8adc0 drm-misc-next for v5.6:
UAPI Changes:
 - Add support for DMA-BUF HEAPS.
 
 Cross-subsystem Changes:
 - mipi dsi definition updates, pulled into drm-intel as well.
 - Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim.
 - Remove support for dma-buf kmap/kunmap.
 - Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well.
 
 Core Changes:
 - Small cleanups to ttm.
 - Fix SCDC definition.
 - Assorted cleanups to core.
 - Add todo to remove load/unload hooks, and use generic fbdev emulation.
 - Assorted documentation updates.
 - Use blocking ww lock in ttm fault handler.
 - Remove drm_fb_helper_fbdev_setup/teardown.
 - Warning fixes with W=1 for atomic.
 - Use drm_debug_enabled() instead of drm_debug flag testing in various drivers.
 - Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted)
 - Various kconfig indentation fixes in core and drivers.
 - Fix freeing transactions in dp-mst correctly.
 - Sean Paul is steping down as core maintainer. :-(
 - Add lockdep annotations for atomic locks vs dma-resv.
 - Prevent use-after-free for a bad job in drm_scheduler.
 - Fill out all block sizes in the P01x and P210 definitions.
 - Avoid division by zero in drm/rect, and fix bounds.
 - Add drm/rect selftests.
 - Add aspect ratio and alternate clocks for HDMI 4k modes.
 - Add todo for drm_framebuffer_funcs and fb_create cleanup.
 - Drop DRM_AUTH for prime import/export ioctls.
 - Clear DP-MST payload id tables downstream when initializating.
 - Fix for DSC throughput definition.
 - Add extra FEC definitions.
 - Fix fake offset in drm_gem_object_funs.mmap.
 - Stop using encoder->bridge in core directly
 - Handle bridge chaining slightly better.
 - Add backlight support to drm/panel, and use it in many panel drivers.
 - Increase max number of y420 modes from 128 to 256, as preparation to add the new modes.
 
 Driver Changes:
 - Small fixes all over.
 - Fix documentation in vkms.
 - Fix mmap_sem vs dma_resv in nouveau.
 - Small cleanup in komeda.
 - Add page flip support in gma500 for psb/cdv.
 - Add ddc symlink in the connector sysfs directory for many drivers.
 - Add support for analogic an6345, and fix small bugs in it.
 - Add atomic modesetting support to ast.
 - Fix radeon fault handler VMA race.
 - Switch udl to use generic shmem helpers.
 - Unconditional vblank handling for mcde.
 - Miscellaneous fixes to mcde.
 - Tweak debug output from komeda using debugfs.
 - Add gamma and color transform support to komeda for DOU-IPS.
 - Add support for sony acx424AKP panel.
 - Various small cleanups to gma500.
 - Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation.
 - Add support for Logic PD Type 28 panel.
 - Use drm_panel_* wrapper functions in exynos/tegra/msm.
 - Add devicetree bindings for generic DSI panels.
 - Don't include drm_pci.h directly in many drivers.
 - Add support for begin/end_cpu_access in udmabuf.
 - Stop using drm_get_pci_dev in gma500 and mga200.
 - Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access.
 - Add devfreq thermal support to panfrost.
 - Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager.
 - meson: Add support for OSD1 plane AFBC commit.
 - Stop displaying garbage when toggling ast primary plane on/off.
 - More cleanups and fixes to UDL.
 - Add D32 suport to komeda.
 - Remove globle copy of drm_dev in gma500.
 - Add support for Boe Himax8279d MIPI-DSI LCD panel.
 - Add support for ingenic JZ4770 panel.
 - Small null pointer deference fix in ingenic.
 - Remove support for the special tfp420 driver, as there is a generic way to do it.
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Merge tag 'drm-misc-next-2019-12-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.6:

UAPI Changes:
- Add support for DMA-BUF HEAPS.

Cross-subsystem Changes:
- mipi dsi definition updates, pulled into drm-intel as well.
- Add lockdep annotations for dma_resv vs mmap_sem and fs_reclaim.
- Remove support for dma-buf kmap/kunmap.
- Constify fb_ops in all fbdev drivers, including drm drivers and drm-core, and media as well.

Core Changes:
- Small cleanups to ttm.
- Fix SCDC definition.
- Assorted cleanups to core.
- Add todo to remove load/unload hooks, and use generic fbdev emulation.
- Assorted documentation updates.
- Use blocking ww lock in ttm fault handler.
- Remove drm_fb_helper_fbdev_setup/teardown.
- Warning fixes with W=1 for atomic.
- Use drm_debug_enabled() instead of drm_debug flag testing in various drivers.
- Fallback to nontiled mode in fbdev emulation when not all tiles are present. (Later on reverted)
- Various kconfig indentation fixes in core and drivers.
- Fix freeing transactions in dp-mst correctly.
- Sean Paul is steping down as core maintainer. :-(
- Add lockdep annotations for atomic locks vs dma-resv.
- Prevent use-after-free for a bad job in drm_scheduler.
- Fill out all block sizes in the P01x and P210 definitions.
- Avoid division by zero in drm/rect, and fix bounds.
- Add drm/rect selftests.
- Add aspect ratio and alternate clocks for HDMI 4k modes.
- Add todo for drm_framebuffer_funcs and fb_create cleanup.
- Drop DRM_AUTH for prime import/export ioctls.
- Clear DP-MST payload id tables downstream when initializating.
- Fix for DSC throughput definition.
- Add extra FEC definitions.
- Fix fake offset in drm_gem_object_funs.mmap.
- Stop using encoder->bridge in core directly
- Handle bridge chaining slightly better.
- Add backlight support to drm/panel, and use it in many panel drivers.
- Increase max number of y420 modes from 128 to 256, as preparation to add the new modes.

Driver Changes:
- Small fixes all over.
- Fix documentation in vkms.
- Fix mmap_sem vs dma_resv in nouveau.
- Small cleanup in komeda.
- Add page flip support in gma500 for psb/cdv.
- Add ddc symlink in the connector sysfs directory for many drivers.
- Add support for analogic an6345, and fix small bugs in it.
- Add atomic modesetting support to ast.
- Fix radeon fault handler VMA race.
- Switch udl to use generic shmem helpers.
- Unconditional vblank handling for mcde.
- Miscellaneous fixes to mcde.
- Tweak debug output from komeda using debugfs.
- Add gamma and color transform support to komeda for DOU-IPS.
- Add support for sony acx424AKP panel.
- Various small cleanups to gma500.
- Use generic fbdev emulation in udl, and replace udl_framebuffer with generic implementation.
- Add support for Logic PD Type 28 panel.
- Use drm_panel_* wrapper functions in exynos/tegra/msm.
- Add devicetree bindings for generic DSI panels.
- Don't include drm_pci.h directly in many drivers.
- Add support for begin/end_cpu_access in udmabuf.
- Stop using drm_get_pci_dev in gma500 and mga200.
- Fixes to UDL damage handling, and use dma_buf_begin/end_cpu_access.
- Add devfreq thermal support to panfrost.
- Fix hotplug with daisy chained monitors by removing VCPI when disabling topology manager.
- meson: Add support for OSD1 plane AFBC commit.
- Stop displaying garbage when toggling ast primary plane on/off.
- More cleanups and fixes to UDL.
- Add D32 suport to komeda.
- Remove globle copy of drm_dev in gma500.
- Add support for Boe Himax8279d MIPI-DSI LCD panel.
- Add support for ingenic JZ4770 panel.
- Small null pointer deference fix in ingenic.
- Remove support for the special tfp420 driver, as there is a generic way to do it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ba73535a-9334-5302-2e1f-5208bd7390bd@linux.intel.com
2019-12-17 13:57:54 +01:00
Hans de Goede
4e7a4a6fbd drm/modes: parse_cmdline: Add support for specifying panel_orientation (v2)
Sometimes we want to override a connector's panel_orientation from the
kernel commandline. Either for testing and for special cases, e.g. a kiosk
like setup which uses a TV mounted in portrait mode.

Users can already specify a "rotate" option through a video= kernel cmdline
option. But that only supports 0/180 degrees (see drm_client_modeset TODO)
and only works for in kernel modeset clients, not for userspace kms users.

The "panel-orientation" connector property OTOH does support 90/270 degrees
as it leaves dealing with the rotation up to userspace and this does work
for userspace kms clients (at least those which support this property).

Changes in v2:
-Add missing ':' after @panel_orientation (reported by kbuild test robot)

BugLink: https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/83
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191118155134.30468-9-hdegoede@redhat.com
2019-12-16 12:13:18 +01:00
Heiko Stuebner
25ed8aeb9c drm/bridge/synopsys: dsi: driver-specific configuration of phy timings
The timing values for dw-dsi are often dependent on the used display and
according to Philippe Cornu will most likely also depend on the used phy
technology in the soc-specific implementation.

To solve this and allow specific implementations to define them as needed
add a new get_timing callback to phy_ops and call this from the dphy_timing
function to retrieve the necessary values for the specific mode.

Right now this handles the hs2lp + lp2hs where Rockchip SoCs need handling
according to the phy speed, while STM seems to be ok with static values.

changes in v5:
- rebase on 5.5-rc1
- merge into px30 dsi series to prevent ordering conflicts

changes in v4:
- rebase to make it directly fit on top of drm-misc-next after all

changes in v3:
- check existence of phy_ops->get_timing in __dw_mipi_dsi_probe()
- emit actual error when get_timing() call fails
- add tags from Philippe and Yannick

changes in v2:
- add driver-specific handling, don't force all bridge users to use
  the same timings, as suggested by Philippe

Suggested-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Tested-by: Yannick Fertre <yannick.fertre@st.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191209143130.4553-2-heiko@sntech.de
2019-12-16 12:01:58 +01:00