- Dec 03, 2018
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Vandita Kulkarni authored
The same pll manager functions can be used to enable dpll for mipi. Hence enabling the IO power and esc clock as part of pre pll enable call. v2 by Jani: - fix function parameter indent (Madhav) Signed-off-by:
Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by:
Madhav Chauhan <madhav.chauhan@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/07db5b1ce59c00295fad8a8e81908d59d8d76915.1543500286.git.jani.nikula@intel.com
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Madhav Chauhan authored
This patch allocates memory for DSI encoder and connector which will be used for various DSI encoder/connector operations and attaching the same to DRM subsystem. This patch also extracts DSI modes info from VBT and save the desired mode info to connector. v2 by Jani: - Drop GEN11 prefix from encoder name - Drop extra parenthesis - Drop extra local variable - Squash encoder power domain here v3 by Jani: - Squash connector and connector helper functions here - Move intel_dsi_vbt_init call here Signed-off-by:
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Madhav Chauhan authored
This patch calculates various DPLL dividers and parameters for DSI encoder and adjust AFE clock for DSI. For DSI, 8x clock is AFE clock. v2: Extend haswell_crtc_compute_clock() for Gen11 DSI v3: Rebase v4: use port clock instead of bitrate. v5: Reabse and remove divide by 5 v6 by Jani: - Fix indent (Madhav) - Fix dpll state calc for EDP and DP MST Co-developed-by:
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Imre Deak authored
The requirement for the DDI port clock gating for a port in DSI mode is the opposite wrt. the case when the port is in DDI mode: the clock should be gated when the port is active and ungated when the port is inactive. Note that we cannot simply keep the DDI clock gated when the port will be only used in DSI mode: it must be gated/ungated at a specific spot in the DSI enable/disable sequence. Ensure the above for all ports of a DSI encoder, also adding a sanity check that we haven't registered another encoder using the same port (VBT should never allow this to happen). Cc: Madhav Chauhan <madhav.chauhan@intel.com> Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Clint Taylor <clinton.a.taylor@intel.com> Reviewed-by:
Imre Deak <imre.deak@intel.com> Signed-off-by:
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Jani Nikula authored
Unclutter the haswell_crtc_enable() and haswell_crtc_disable() functions a bit by moving the pll to port mapping and unmapping functions to the ddi encoder hooks. This allows removal of a bunch of boilerplate code from the functions. Additionally, the ICL DSI encoder needs to do the clock gating and ungating slightly differently, and this allows its own handling in a clean fashion. Cc: Madhav Chauhan <madhav.chauhan@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Chris Wilson authored
If all else fails and we are stuck eternally waiting for the undying request, abandon all hope. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181203113701.12106-6-chris@chris-wilson.co.uk
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Chris Wilson authored
Ensure that the sync registers are cleared every time we restart the ring to avoid stale values from creeping in from random neutrinos. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108888 Signed-off-by:
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- Dec 01, 2018
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José Roberto de Souza authored
As stated in struct drm_encoder, crtc field should only be used by non-atomic drivers. So here caching the pipe id in intel_psr_enable() what is way more simple and efficient than at every call to intel_psr_flush()/invalidate() get the drm.mode_config.connection_mutex lock to safely be able to get the pipe id by reading drm_connector_state.crtc. This should fix the null pointer dereference crash below as the previous way to get the pipe id was prone to race conditions. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105959 Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
José Roberto de Souza <jose.souza@intel.com> Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181128072838.22773-1-jose.souza@intel.com
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- Nov 30, 2018
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Tvrtko Ursulin authored
The test was missing some magic ingredients to actually trigger the resets. In case of the full reset we need the I915_RESET_HANDOFF flag set, and in case of engine reset we need a busy request. Thanks to Chris for helping with reset magic. v2: * Grab RPM ref over reset. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
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Tvrtko Ursulin authored
Pull out spinner code to a standalone file to enable it to be shortly used by other and new test cases. Plain code movement - no functional changes. Signed-off-by:
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Tvrtko Ursulin authored
It seems that the documentation does not reference this any more, plus, bit 28 does not stick when written to the register. Therefore I can only assume this is something which was documented in the past but got removed from the hardware in the meantime. Signed-off-by:
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Tvrtko Ursulin authored
There is no white-listing before Gen8 and after the removal ringbuffer support for these platforms we can remove the call to this no-op. Signed-off-by:
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Chris Wilson authored
248 "multiple definition of ...". E.g.: LD [M] drivers/gpu/drm/i915/i915.o ld: drivers/gpu/drm/i915/i915_irq.o: in function `intel_opregion_resume': i915_irq.c:(.text+0x58f0): multiple definition of `intel_opregion_resume'; drivers/gpu/drm/i915/i915_drv.o:i915_drv.c:(.text+0x2d40): first defined here Reported-by:Randy Dunlap <rdunlap@infradead.org> Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Fixes: a950adc6 ("drm/i915: Stop calling intel_opregion unregister/register in suspend/resume") Signed-off-by:
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Anusha Srivatsa authored
Set the suitable bits in DP_TP_CTL to stop bit correction when DSC is disabled. v2: - rebased. - Add additional check for compression state. (Gaurav) v3: rebased. v4: - Move the code to the proper spot according to spec (Ville) - Use proper checks (manasi) v5: Remove unnecessary checks (Ville) v6: Resolve warnings. Add crtc_state as an argument to intel_disable_ddi_buf(). (Manasi) Cc: dri-devel@lists.freedesktop.org Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
Manasi Navare <manasi.d.navare@intel.com> Reviewed-by:
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Anusha Srivatsa authored
If FEC is supported, the corresponding DP_TP_CTL register bits have to be configured. The driver has to program the FEC_ENABLE in DP_TP_CTL[30] register and wait till FEC_STATUS in DP_TP_CTL[28] is 1. Also add the warn message to make sure that the control register is already active while enabling FEC. v2: - Change commit message. Configure fec state after link training (Manasi, Gaurav) - Remove redundent checks (Manasi) - Remove the registers that get added automagically (Anusha) v3: s/intel_dp_set_fec_state()/intel_dp_enable_fec_state() (Gaurav) v4: rebased. v5: - Move the code to the proper spot, according to spec.(Ville) - Use fec state as a check too. v6: Pass intel_encoder, instead of intel_dp. (Ville) v7: Remove unwanted comments (Manasi) Cc: dri-devel@lists.freedesktop.org Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Anusha Srivatsa authored
If the panel supports FEC, the driver has to set the FEC_READY bit in the dpcd register: FEC_CONFIGURATION. This has to happen before link training. v2: s/intel_dp_set_fec_ready/intel_dp_sink_set_fec_ready - change commit message. (Gaurav) v3: rebased. (r-b Manasi) v4: Use fec crtc state, before setting FEC_READY bit. (Anusha) v5: Move to intel_ddi.c - Make the function static (Anusha) v6: Dont pass state as a separate argument (Ville) v7: (From Manasi) * Correct the debug print (Ville) Cc: dri-devel@lists.freedesktop.org Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Anusha Srivatsa authored
For DP 1.4 and above, Display Stream compression can be enabled only if Forward Error Correctin can be performed. Add a crtc state for FEC. Currently, the state is determined by platform, DP and DSC being enabled. Moving forward we can use the state to have error correction on other scenarios too if needed. v2: - Control compression_enable with the fec_enable parameter in crtc state and with intel_dp_supports_fec() (Ville) - intel_dp_can_fec()/intel_dp_supports_fec()(manasi) v3: Check for FEC support along with setting crtc state. v4: add checks to intel_dp_source_supports_dsc.(manasi) - Move intel_dp_supports_fec() closer to intel_dp_supports_dsc() (Anusha) v5: Move fec check to intel_dp_supports_dsc(Ville) v6: Remove warning. rebase. v7: change crtc state to include DP sink and fec capability of source.(Manasi) v8: Set fec_enable in crtc in intel_dp_compute_config(). v9 (From Manasi): * Combine the !edp and !fec_support check * Derive dev_priv from intel_dp directly v10 (From Manasi): * Rebase Suggested-by:
Manasi Navare <manasi.d.navare@intel.comk> Reviewed-by:
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Manasi Navare authored
A separate power well 2 (PG2) is required for VDSC on eDP transcoder whereas all other transcoders use the power wells associated with the transcoders for VDSC. This patch adds a helper to obtain correct power domain depending on transcoder being used and enables/disables the power wells during VDSC enabling/disabling. v4: * Get VDSC power domain only if compression en is set in crtc_state (Ville, Imre) v3: * Call it intel_dsc_power_domain, add to intel_ddi_get_power_domains (Ville) v2: * Fix tabs, const crtc_state, fix comments (Ville) Suggested-by:
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Manasi Navare authored
1. Disable Left/right VDSC branch in DSS Ctrl reg depending on the number of VDSC engines being used 2. Disable joiner in DSS Ctrl reg v4: * Remove encoder, make crtc_state const (Ville) v3 (From Manasi): * Add Disable PG2 for VDSC on eDP v2 (From Manasi): * Use old_crtc_state to find dsc params * Add a condition to disable only if dsc state compression is enabled * Use correct DSS CTL regs Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:Gaurav K Singh <gaurav.k.singh@intel.com> Reviewed-by:
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Manasi Navare authored
Display Stream Splitter registers need to be programmed to enable the joiner if two DSC engines are used and also to enable the left and the right DSC engines. This happens as part of the DSC enabling routine in the source in atomic commit. v4: * Remove redundant comment (Ville) v3: * Use cpu_transcoder instead of encoder->type (Ville) v2: * Rebase (Manasi) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
Anusha Srivatsa <anusha.srivatsa@intelcom> Link: https://patchwork.freedesktop.org/patch/msgid/20181128202628.20238-11-manasi.d.navare@intel.com
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Manasi Navare authored
DSC PPS secondary data packet infoframes are filled with DSC picure parameter set metadata according to the DSC standard. These infoframes are sent to the sink device and used during DSC decoding. v3: * Rename to intel_dp_write_pps_sdp (Ville) * Use const intel_crtc_state (Ville) v2: * Rebase ond drm-tip Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Manasi Navare authored
Infoframes are used to send secondary data packets. This patch adds support for DSC Picture parameter set secondary data packets in the existing write_infoframe helpers. v3: * Unused variables cleanup (Ville) v2: * Rebase on drm-tip (Manasi) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Manasi Navare authored
After encoder->pre_enable() hook, after link training sequence is completed, PPS registers for DSC encoder are configured using the DSC state parameters in intel_crtc_state as part of DSC enabling routine in the source. DSC enabling routine is called after encoder->pre_enable() before enbaling the pipe and after compression is enabled on the sink. v7: * Remove unnecessary comments, leftovers (Ville) * No need for explicit val &= ~ (Ville) v6: intel_dsc_enable to be part of pre_enable hook (Ville) v5: * make crtc_state const (Ville) v4: * Use cpu_transcoder instead of encoder->type for using EDP transcoder DSC registers(Ville) * Keep all PSS regs together (Anusha) v3: * Configure Pic_width/2 for each VDSC engine when two VDSC engines per pipe are used (Manasi) * Add DSC slice_row_per_frame in PPS16 (Manasi) v2: * Enable PG2 power well for VDSC on eDP Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Manasi Navare authored
On Icelake, a separate power well PG2 is created for VDSC engine used for eDP/MIPI DSI. This patch adds a new display power domain for Power well 2. v3: * Call it POWER_DOMAIN_TRANSCODER_EDP_VDSC (Ville) * Move it around TRANSCODER power domain defs (Ville) v2: * Fix the power well mismatch CI error (Ville) * Rename as VDSC_PIPE_A (Imre) * Fix a whitespace (Anusha) * Fix Comments (Imre) Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by:
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Gaurav K Singh authored
This patch enables decompression support in sink device before link training and disables the same during the DDI disabling. v3 (From manasi): * Pass bool state to enable/disable (Ville) v2:(From Manasi) * Change the enable/disable function to take crtc_state instead of intel_dp as an argument (Manasi) * Use the compression_enable flag as part of crtc_state (Manasi) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by:
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Gaurav K Singh authored
This computation of RC params happens in the atomic commit phase during compute_config() to validate if display stream compression can be enabled for the requested mode. v7 (From Manasi): * Use DRM_DEBUG instead of DRM_ERROR (Ville) * Use Error numberinstead of -1 (Ville) v6 (From Manasi): * Use 9 instead of 0x9 for consistency (Anusha) v5 (From Manasi): * Fix dim checkpatch warnings/checks v4(From Gaurav): * No change.Rebase on drm-tip v3 (From Gaurav): * Rebase on top of Manasi's latest series * Return -ve value in case of failure scenarios (Manasi) Fix review comments from Ville: * Remove unnecessary comments * Remove unnecessary paranthesis * Add comments for few RC params calculations v2 (From Manasi): * Rebase Gaurav's patch from intel-gfx to gfx-internal * Use struct drm_dsc_cfg instead of struct intel_dp as a parameter Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Signed-off-by:
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Gaurav K Singh authored
This patches does the following: 1. This patch defines all the DSC parameters as per the VESA DSC specification. These are stored in the encoder and used to compute the PPS parameters to be sent to the Sink. 2. Compute all the DSC parameters which are derived from DSC state of intel_crtc_state. 3. Compute all parameters that are VESA DSC specific This computation happens in the atomic check phase during compute_config() to validate if display stream compression can be enabled for the requested mode. v8 (From Manasi): * DEBUG_KMS instead of DRM_ERROR for user triggerable errors (Ville) v7: (From Manasi) * Dont use signed int for rc_range_params (Manasi) * Mask the range_bpg_offset to use only 6 bits * Add SPDX identifier (Chris Wilson) v6 (From Manasi): * Add a check for line_buf_depth return value (Anusha) * Remove DRM DSC constants to different patch (Manasi) v5 (From Manasi): * Add logic to limit the max line buf depth for DSC 1.1 to 13 as per DSC 1.1 spec * Fix dim checkpatch warnings/checks v4 (From Gaurav): * Rebase on latest drm tip * rename variable name(Manasi) * Populate linebuf_depth variable(Manasi) v3 (From Gaurav): * Rebase my previous patches on top of Manasi's latest patch series * Using >>n rather than /2^n (Manasi) * Change the commit message to explain what the patch is doing(Gaurav) Fixed review comments from Ville: * Don't use macro TWOS_COMPLEMENT * Mention in comment about the source of RC params * Return directly from case statements * Using single asssignment for assigning rc_range_params * Using <<n rather than *2^n and removing the comments about the fixed point numbers v2 (From Manasi): * Update logic for minor version to consider the dpcd value and what supported by the HW platform * Use DRM DSC config struct instead of intel_dp struct * Move the DSC constants to DRM DSC header file * Use u16, u8 where bigger data types not needed * * Compute the DSC parameters as part of DSC compute config since the computation can fail (Manasi) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by:
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Manasi Navare authored
If a eDP panel supports both PSR2 and VDSC, our HW cannot support both at a time. Give priority to PSR2 if a requested resolution can be supported without compression else enable VDSC and keep PSR2 disabled. v4: Fix the unrealted stuff removed during rebase (Ville) v3: * Rebase v2: * Add warning for DSC and PSR2 enabled together (DK) Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
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Manasi Navare authored
DSC params like the enable, compressed bpp, slice count and dsc_split are added to the intel_crtc_state. These parameters are set based on the requested mode and available link parameters during the pipe configuration in atomic check phase. These values are then later used to populate the remaining DSC and RC parameters before enbaling DSC in atomic commit. v15: * Rebase over drm-tip v14: Remove leftovers, use dsc_bpc, refine dsc_compute_config (Ville) v13: * Compute DSC bpc only when DSC is req to be enabled (Ville) v12: * Override bpp with dsc dpcd color depth (Manasi) v11: * Const crtc_state, reject DSC on DP without FEC (Ville) * Dont set dsc_split to false (Ville) v10: * Add a helper for dp_dsc support (Ville) * Set pipe_config to max bpp, link params for DSC for now (Ville) * Compute bpp - use dp dsc support helper (Ville) v9: * Rebase on top of drm-tip that now uses fast_narrow config for edp (Manasi) v8: * Check for DSC bpc not 0 (manasi) v7: * Fix indentation in compute_m_n (Manasi) v6 (From Gaurav): * Remove function call of intel_dp_compute_dsc_params() and invoke intel_dp_compute_dsc_params() in the patch where it is defined to fix compilation warning (Gaurav) v5: Add drm_dsc_cfg in intel_crtc_state (Manasi) v4: * Rebase on refactoring of intel_dp_compute_config on tip (Manasi) * Add a comment why we need to check PSR while enabling DSC (Gaurav) v3: * Check PPR > max_cdclock to use 2 VDSC instances (Ville) v2: * Add if-else for eDP/DP (Gaurav) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181128213621.21391-1-manasi.d.navare@intel.com
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Manasi Navare authored
Basic DSC parameters and DSC configuration data needs to be computed for each of the requested mode during atomic check. This is required since for certain modes, valid DSC parameters and config data might not be computed in which case compression cannot be enabled for that mode. For that reason we need to add these params and config structure to the intel_crtc_state so that if valid this state information can directly be used while enabling DSC in atomic commit. v2: * Rebase on drm-tip (Manasi) Cc: Gaurav K Singh <gaurav.k.singh@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Ville Syrjälä authored
In the future framebuffer stride alignment requirements won't exactly match the units in which skl+ plane stride is specified. So extract the code for the skl+ stuff into a separate helper. Signed-off-by:
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Ville Syrjälä authored
Let's try to make sure the fb offset computations never hit an integer overflow by making sure the entire fb stays below 32bits. framebuffer_check() in the core already does the same check, but as it doesn't know about tiling some things can slip through. Repeat the check in the driver with tiling taken into account. v2: Use add_overflows() after massaging it to work for me (Chris) v3: Call it add_overflow_t() to match min_t() & co. (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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- Nov 29, 2018
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Ville Syrjälä authored
On icl+ the plane state that gets passed to update_slave() is not the plane state of the plane we're programming. With NV12 the plane state would be coming from the master (UV) plane whereas the plane we're programming is the slave (Y) plane. For that reason we need to explicitly pass around the slave plane (or we'd have to otherwise deduce it by checking whether we were called via .update_plane() or .update_slave()). In the case of icl_program_input_csc_coeff() it's actually OK to assume that we are always the master plane because the input CSC only exists on HDR planes which can never be a slave plane. But for consistency let's pass in the plane explicitly anyway. While at it drop the "_coeff" from the function name since it's kinda redundant, and this makes the name a bit shorter :) Cc: Uma Shankar <uma.shankar@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
Uma Shankar <uma.shankar@intel.com> Reviewed-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by:
Matt Roper <matthew.d.roper@intel.com>
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Ville Syrjälä authored
A variable whose name is 'plane_id' is expected to be of the enum plane_id type. In this case we have a raw int, which turns out to refer to the plane of the framebuffer. Rename the variable to 'color_plane' in line with the trend started earlier. Signed-off-by:
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Ville Syrjälä authored
skl+ can go belly up if there are overlapping ddb allocations between planes. If we could absolutely guarantee that we can perform the atomic update within a single frame we shouldn't have to worry about this. But we can't rely on that so let's steal the ddb overlap check trick from skl_update_crtcs() and apply it to the plane updates. Since each step of the sequence is free from ddb overlaps we don't have to worry about a vblank sneaking up on us in the middle of the sequence. The partial state that gets latched by the hardware will be safe. And unlike skl_update_crtcs() we don't have to intoduce any extra vblank waits on account of only having to worry about a single pipe. v2: Fix typo in commit msg (Matt) Signed-off-by:
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Ville Syrjälä authored
On SKL+ the plane WM/BUF_CFG registers are a proper part of each plane's register set. That means accessing them will cancel any pending plane update, and we would need a PLANE_SURF register write to arm the wm/ddb change as well. To avoid all the problems with that let's just move the wm/ddb programming into the plane update/disable hooks. Now all plane registers get written in one (hopefully atomic) operation. To make that feasible we'll move the plane ddb tracking into the crtc state. Watermarks were already tracked there. v2: Rebase due to input CSC v3: Split out a bunch of junk (Matt) v4: Add skl_wm_add_affected_planes() to deal with cursor special case and non-zero wm register reset value v5: Drop the unrelated for_each_intel_plane_mask() fix (Matt) Remove the redundant ddb memset() (Matt) Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #v3 Signed-off-by: -
Ville Syrjälä authored
Simplify the calling convention of the skl+ watermark functions by not passing around dev_priv needlessly. The callees have what they need to dig it out anyway. Signed-off-by:
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Ville Syrjälä authored
Make a cleaner split between the skl+ and icl+ ways of computing watermarks. This way skl_build_pipe_wm() doesn't have to know any of the gritty details of icl+ master/slave planes. We can also simplify a bunch of the lower level code by pulling the plane visibility checks a bit higher up. v2: WARN_ON(!visible) for the icl+ master plane case (Matt) Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by:
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Ville Syrjälä authored
We have to pass both level 0 watermark struct and the transition watermark struct to skl_compute_transition_wm(). Make life less confusing by just passing the entire plane watermark struct that contains both aforementioned structures. Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
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Ville Syrjälä authored
We memset(0) the entire watermark struct the start, so there's no need to clear things later on. v2: Rebase due to some stale w/a removal Reviewed-by:
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