- 15 Jan, 2020 4 commits
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Lyude Paul authored
Currently, for every single MST capable DRM connector we create a set of fake encoders, one for each possible head. Unfortunately this ends up being a huge waste of encoders. While this currently isn't causing us any problems, it's extremely close to doing so. The ThinkPad P71 is a good example of this. Originally when trying to figure out why nouveau was failing to load on this laptop, I discovered it was because nouveau was creating too many encoders. This ended up being because we were mistakenly creating MST encoders for the eDP port, however we are still extremely close to hitting the encoder limit on this machine as it exposes 1 eDP port and 5 DP ports, resulting in 31 encoders. So while this fix didn't end up being necessary to fix the P71, we still need to implement this so that we avoid hitting the encoder limit for valid display configurations in the event that some machine with more connectors then this becomes available. Plus, we don't want to let good code go to waste :) So, use less encoders by only creating one MSTO per head. Then, attach each new MSTC to each MSTO which corresponds to a head that it's parent DP port is capable of using. This brings the number of encoders we register on the ThinkPad P71 from 31, down to just 15. Yay! Signed-off-by:
Lyude Paul <lyude@redhat.com> Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
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Lyude Paul authored
When drm_connector_helper_funcs->atomic_best_encoder is defined, ->best_encoder is ignored by the atomic modesetting helpers. That being said, this hook is completely broken anyway - it always returns the first msto for a given mstc, despite the fact it might already be in use. So, just get rid of it. We'll need this in a moment anyway, when we make mstos per-head as opposed to per-connector. Changes since v1: * Fix typo in documentation - imirkin Signed-off-by:
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Ilia Mirkin authored
The hardware supports either size. Also add checks to ensure that only these two sizes may be used for supplying a LUT. Signed-off-by:
Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by:
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Ben Skeggs authored
Commit 5fde30a2684041f9820aa9dc4fbd0009a45076a9 in envytools modified some of the Falcon V5 encodings, regenerate the relevant FW with this. Also modify build rules to include SPDX header in generated files. Tested on GM107, with no issues noted. Signed-off-by:
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- 13 Jan, 2020 3 commits
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Dave Airlie authored
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
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
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:
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
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:
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- 10 Jan, 2020 1 commit
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Mikita Lipski authored
[why] Compilation error "undefined reference to `__udivdi3'" was thrown on i386 architecture. [how] Use div_u64 for unsigned long division instead of a divide operator. Reported-by:
Randy Dunlap <rdunlap@infradead.org> Reviewed-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
Mikita Lipski <mikita.lipski@amd.com> Signed-off-by:
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- 09 Jan, 2020 32 commits
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Alex Deucher authored
the parameter is the mst manager, not the port. Reviewed-by:
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Alex Deucher authored
Otherwise we get undefined symbols. Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Signed-off-by:
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David (Dingchen) Zhang authored
[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:
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Mikita Lipski authored
Whenever a connector on an MST network is attached, detached, 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. Therefore, whenever a crtc has drm_atomic_crtc_needs_modeset, for each crtc that shares a MST topology with that stream and supports DSC, add that crtc (and all affected connectors and planes) to the atomic state and set mode_changed on its state v2: Do this check only on Navi and before adding connectors and planes on modesetting crtcs v3: Call the drm_dp_mst_add_affected_dsc_crtcs() to update all affected CRTCs Reviewed-by:
David Francis <David.Francis@amd.com> Signed-off-by:
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Mikita Lipski authored
[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: -
Mikita Lipski authored
[why] Since for DSC MST connector's PBN is claculated differently due to compression, we have to recalculate both PBN and VCPI slots for that connector. [how] The function iterates through all the active streams to find, which have DSC enabled, then recalculates PBN for it and calls drm_dp_helper_update_vcpi_slots_for_dsc to update connector's VCPI slots. v2: - use drm_dp_mst_atomic_enable_dsc per port to enable/disable DSC v3: - Iterate through connector states from the state passed - On each connector state get stream from dc_state, instead CRTC state Reviewed-by: -
Mikita Lipski authored
If driver fails to update update VCPI allocation during compute_mst_dsc_configs_for_state - fail the function by return early. Signed-off-by:
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David Francis authored
If there is limited link bandwidth on a MST network, it must be divided fairly between the streams on that network Implement an algorithm to determine the correct DSC config for each stream The algorithm: This [ ] ( ) represents the range of bandwidths possible for a given stream. The [] area represents the range of DSC configs, and the () represents no DSC. The bandwidth used increases from left to right. First, try disabling DSC on all streams [ ] (|) [ ] (|) Check this against the bandwidth limits of the link and each branch (including each endpoint). If it passes, the job is done Second, try maximum DSC compression on all streams that support DSC [| ] ( ) [| ] ( ) If this does not pass, then enabling this combination of streams is impossible Otherwise, divide the remaining bandwidth evenly amongst the streams [ | ] ( ) [ | ] ( ) If one or more of the streams reach minimum compression, evenly divide the reamining bandwidth amongst the remaining streams [ |] ( ) [ |] ( ) [ | ] ( ) [ | ] ( ) If all streams can reach minimum compression, disable compression greedily [ |] ( ) [ |] ( ) [ ] (|) Perform this algorithm on each full update, on each MST link with at least one DSC stream on it After the configs are computed, call dcn20_add_dsc_to_stream_resource on each stream with DSC enabled. It is only after all streams are created that we can know which of them will need DSC. Do all of this at the end of amdgpu atomic check. If it fails, fail check; This combination of timings cannot be supported. v2: Use drm_dp_mst_atomic_check to validate bw for certain dsc configurations v3: Use dc_dsc_policy structure to get min and max bpp rate for DSC configuration Acked-by:Wenjing Liu <Wenjing.Liu@amd.com> Signed-off-by:
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Mikita Lipski authored
[why] Need to calculate VCPI slots differently for DSC to take in account current link rate, link count and FEC. [how] Add helper to get pbn_div from dc_link Acked-by:
Leo Li <sunpeng.li@amd.com> Signed-off-by:
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Mikita Lipski authored
[why] drm_dp_mst_atomic_check_topology_state() should be renamed to reflect more specific type of check. Since it is verifying payload allocation limit it should be renamed into drm_dp_mst_atomic_check_vcpi_alloc_limit() Reviewed-by:
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Mikita Lipski authored
[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:
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Mikita Lipski authored
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:
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Mikita Lipski authored
[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:
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David Francis authored
Rework the dm_helpers_write_dsc_enable callback to handle the MST case. Use the cached dsc_aux field. Reviewed-by:
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David Francis authored
During MST mode enumeration, if a new dc_sink is created, populate it with dsc caps as appropriate. Use drm_dp_mst_dsc_aux_for_port to get the raw caps, then parse them onto dc_sink with dc_dsc_parse_dsc_dpcd. Reviewed-by:
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David Francis authored
For DSC MST, sometimes monitors would break out in full-screen static. The issue traced back to the PPS generation code, where these variables were being used uninitialized and were picking up garbage. memset to 0 to avoid this Reviewed-by:
Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by:
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Mikita Lipski authored
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:
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David Francis authored
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: -
David Francis authored
This field on drm_dp_mst_branch was never filled It is initialized to zero when the port is kzallocced. When a port is added to the list, increment num_ports, and when a port is removed from the list, decrement num_ports. v2: remember to decrement on port removal v3: don't explicitly init to 0 v4: move decrement of num_ports to unlink_port function Reviewed-by:
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David Francis authored
Instead of having drm_dp_dpcd_read/write and drm_dp_mst_dpcd_read/write as entry points into the aux code, have drm_dp_dpcd_read/write handle both. This means that DRM drivers can make MST DPCD read/writes. v2: Fix spacing v3: Dump dpcd access on MST read/writes v4: Fix calling wrong function on DPCD write v5: delete deprecated include of drmP.h Reviewed-by:
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David Francis authored
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:
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David Francis authored
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:
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Felix Kuehling authored
Use filep->private_data to store a pointer to the kfd_process data structure. Take an extra reference for that, which gets released in the kfd_release callback. Check that the process calling kfd_ioctl is the same that opened the file descriptor. Return -EBADF if it's not, so that this error can be distinguished in user mode. Signed-off-by:
Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by:
Philip Yang <Philip.Yang@amd.com> Signed-off-by:
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Miquel Raynal authored
Add support for the Satoz SAT050AT40H12R2 panel. Signed-off-by:
Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200109184037.9091-2-miquel.raynal@bootlin.com
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Miquel Raynal authored
Satoz is a Chinese TFT manufacturer. Website: http://www.sat-sz.com/English/index.html Add the compatible for its SAT050AT40H12R2 5.0 inch LCD panel. Signed-off-by:
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Maxime Ripard authored
The Allwinner SoCs have a display engine composed of several controllers assembled differently depending on the SoC, the number and type of output they have, and the additional features they provide. A number of those are supported in Linux, with the matching bindings. Now that we have the DT validation in place, let's split into separate file and convert the device tree bindings for those controllers to schemas. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200103152801.47254-1-maxime@cerno.tech
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Benjamin Gaignard authored
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
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Benjamin Gaignard authored
Some variables are set but never used. To avoid warning when compiling with W=1 and keep the algorithm like it is tag theses variables with _maybe_unused macro. Signed-off-by:
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Tobias Schramm authored
This patch adds support for the BOE NV140FHM-N49 panel to the panel-simple driver. The panel is used by the pine64 Pinebook Pro. Signed-off-by:
Tobias Schramm <t.schramm@manjaro.org> Signed-off-by:
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Sam Ravnborg authored
Add bindings for the BOE NV140FHM-N49 14" 1920x1080 panel. The panel is used by the pine64 Pinebook Pro. Signed-off-by:
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Linus Walleij authored
The Sony ACX424AKP is a command/videomode DSI panel for mobile devices. It is used on the ST-Ericsson HREF520 reference design. We support video mode by default, but it is possible to switch the panel into command mode by using the bool property "dsi-command-mode". Cc: Stephan Gerhold <stephan@gerhold.net> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Thomas Zimmermann authored
The udl driver for DisplayLink devices depends on support for host-side USB controllers, which is enabled with CONFIG_USB. Plain USB support as given by CONFIG_USB_SUPPORT is not sufficient. This patch changes dependencies for udl to depend on CONFIG_USB, instead of CONFIG_USB_SUPPORT. Users will have to enable CONFIG_USB and select a USB host controller. With this change udl dependencies work the same way as dependencies for PCI drivers. Signed-off-by:
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