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2022-10-27drm/i915/audio: Use intel_de_rmw() for most audio registersVille Syrjälä1-81/+57
The audio code does a lot of RMW accesses. Utilize intel_de_rmw() to make that a bit less tedious. There are still some hand rolled RMW left, but those have a lot of code in between the read and write to calculate the new value, so would need some refactoring first. v2: Add parens around the ?: to satisfy the robot Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-13-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Use u32* for ELDVille Syrjälä1-12/+9
Make the eld pointer u32* so we don't have to do super ugly casting in the code itself. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-12-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Make sure we write the whole ELD bufferVille Syrjälä1-9/+25
Currently we only write as many dwords into the hardware ELD buffers as drm_eld_size() tells us. That could mean the remainder of the hardware buffer is left with whatever stale garbage it had before, which doesn't seem entirely great. Let's zero out the remainder of the buffer in case the provided ELD doesn't fill it fully. We can also sanity check out idea of the hardware ELD buffer's size by making sure the address wrapped back to zero once we wrote the entire buffer. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-11-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Read ELD buffer size from hardwareVille Syrjälä1-7/+45
We currently read the ELD buffer size from hardware on g4x, but on ilk+ we just hardcode it to 84 bytes. Let's unify this and just do the hardware readout on all platforms, in case the size changes in the future or something. TODO: should perhaps do the readout during driver init and stash the results somewhere so that we could check that the connector's ELD actually fits and not even try to enable audio in that case... v2: Document the size is in dwords (Jani) Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-10-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Nuke intel_eld_uptodate()Ville Syrjälä1-33/+0
No idea why we do this ELD comparions on g4x before loading the new ELD. Seems entirely pointless so just get rid of it. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-9-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Protect singleton register with a lockVille Syrjälä1-0/+7
On the "ilk" platforms AUD_CNTL_ST2 is a singleton. Protect it with the audio mutex in case we ever want to do parallel RMW access to it. Currently that should not happen since we only do audio enable/disable from full modesets, and those are fully serialized. But we probably want to think about toggling audio on/off from fastsets too. The hsw codepaths already have the same locking. g4x should not need it since it can only do audio to a single port at a time, which means it's actually broken in more ways than this atm. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-8-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Unify register bit namingVille Syrjälä2-7/+7
Rename a few g4x bits to match the ibx+ bits. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-7-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Use REG_BIT() & co.Ville Syrjälä2-51/+45
Switch the audio registers to REG_BIT() & co. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-6-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Extract struct ilk_audio_regsVille Syrjälä1-42/+43
The "ilk" audio codec codepaths have some duplicated code to figure out the correct registers to use on each platform. Extrat that into a single place. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-5-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Remove CL/BLC audio stuffVille Syrjälä2-25/+6
We don't use the audio code on crestline (CL) since it doesn't support native HDMI output, and SDVO has it's own way of doing audio. And Bearlake-C (BLC) doesn't even exist in the real world, so no point it trying to deal with it. Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-4-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: Nuke leftover ROUNDING_FACTORVille Syrjälä1-2/+0
Remove some leftovers I missed in commit 2dd43144e824 ("drm/i915: Streamline the artihmetic") Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-3-ville.syrjala@linux.intel.com
2022-10-27drm/i915/audio: s/dev_priv/i915/Ville Syrjälä2-197/+196
Rename the 'dev_priv' variables to 'i915' in the audio code to match modern style conventions. v2: Drop some needless braces in intel_audio_hooks_init() Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: Takashi Iwai <tiwai@suse.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-2-ville.syrjala@linux.intel.com
2022-10-26drm/i915/display: Move squash_ctl register programming to its own functionAnusha Srivatsa1-9/+14
No functional change. Introduce dg2_cdclk_squash_program and move squash_ctl register programming bits to this. v2: s/dg2_cdclk_squash_programming/dg2_cdclk_squash_program (Jani) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025223042.138810-4-anusha.srivatsa@intel.com
2022-10-26drm/i915/display: Move chunks of code out of bxt_set_cdclk()Anusha Srivatsa1-15/+24
No functional change. Moving segments out to simplify bxt_set_cdlck() v2: s/bxt_cdclk_pll/bxt_cdclk_pll_update (Jani) Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025223042.138810-3-anusha.srivatsa@intel.com
2022-10-26drm/i915/display: Introduce HAS_CDCLK_SQUASH macroAnusha Srivatsa4-10/+8
Driver had discrepancy in how cdclk squash and crawl support were checked. Like crawl, add squash as a 1 bit feature flag to the display section of DG2. Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025223042.138810-2-anusha.srivatsa@intel.com
2022-10-26drm/i915/display: Change terminology for cdclk actionsAnusha Srivatsa1-8/+8
No functional changes. Changing terminology in some print statements. s/has_cdclk_squasher/has_cdclk_squash, s/crawler/crawl and s/squasher/squash. Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025223042.138810-1-anusha.srivatsa@intel.com
2022-10-26drm/i915/tgl+: Sanitize DKL PHY register definitionsImre Deak6-152/+159
Not all Dekel PHY registers have a lane instance, so having to specify this when using them is awkward. It makes more sense to define each PHY register with its full internal PHY offset where bits 15:12 is the lane for lane-instanced PHY registers and just a register bank index for other PHY registers. This way lane-instanced registers can be referred to with the (tc_port, lane) parameters, while other registers just with a tc_port parameter. An additional benefit of this change is to prevent passing a Dekel register to a generic MMIO access function or vice versa. v2: - Fix parameter reuse in the DKL_REG_MMIO definition. v3: - Rebase on latest patchset version. Cc: Jani Nikula <jani.nikula@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025114457.2191004-3-imre.deak@intel.com
2022-10-26drm/i915/tgl+: Move DKL PHY register definitions to intel_dkl_phy_regs.hImre Deak7-179/+198
Move the TypeC DKL PHY register definitions to intel_dkl_phy_regs.h. No functional changes. v2: - Move the definitions to a new intel_dkl_phy_regs.h file. (Jani). v3: - Rebase on latest patchset version. Cc: Jani Nikula <jani.nikula@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025114457.2191004-2-imre.deak@intel.com
2022-10-26drm/i915: Rename intel_tc_phy_regs.h to intel_mg_phy_regs.hImre Deak4-6/+6
An upcoming patch moves the DKL PHY register definitions to intel_dkl_phy_regs.h, so for consistency rename intel_tc_phy_regs.h containing only MG PHY register definitions to intel_mg_phy_regs.h. Suggested-by: Jani Nikula <jani.nikula@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025102644.2123988-3-imre.deak@intel.com
2022-10-26drm/i915/tgl+: Add locking around DKL PHY register accessesImre Deak9-76/+204
Accessing the TypeC DKL PHY registers during modeset-commit, -verification, DP link-retraining and AUX power well toggling is racy due to these code paths being concurrent and the PHY register bank selection register (HIP_INDEX_REG) being shared between PHY instances (aka TC ports) and the bank selection being not atomic wrt. the actual PHY register access. Add the required locking around each PHY register bank selection-> register access sequence. Kudos to Ville for noticing the race conditions. v2: - Add the DKL PHY register accessors to intel_dkl_phy.[ch]. (Jani) - Make the DKL_REG_TC_PORT macro independent of PHY internals. - Move initing the DKL PHY lock to a more logical place. v3: - Fix parameter reuse in the DKL_REG_TC_PORT definition. - Document the usage of phy_lock. v4: - Fix adding TC_PORT_1 offset in the DKL_REG_TC_PORT definition. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: <stable@vger.kernel.org> # v5.5+ Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221025114457.2191004-1-imre.deak@intel.com
2022-10-26drm/i915: Stop loading linear degamma LUT on glk needlesslyVille Syrjälä1-23/+3
Make glk_load_luts() a bit lighter for the common case where neither the degamma LUT nor pipe CSC are enabled by not loading the linear degamma LUT. Making .load_luts() as lightweight as possible is a good idea since it may need to execute from a vblank worker under tight deadlines. My earlier reasoning for always loading the linear degamma LUT was to avoid an extra LUT load when just enabling/disabling the pipe CSC, but that is nonsense since we load the LUTs on every flagged color management change/modeset anyway (either of which is needed for a pipe CSC toggle). We can also get rid of the glk_can_preload_luts() special case since the presence of the degamma LUT will now always match csc_enable. v2: Fix typos (Uma) Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-6-ville.syrjala@linux.intel.com
2022-10-26drm/i915: Get rid of glk_load_degamma_lut_linear()Ville Syrjälä5-42/+82
Since we now have a place (pre_csc_lut) to stuff a purely internal LUT we can replace glk_load_degamma_lut_linear() with such a thing and just rely on the normal glk_load_degamma_lut() to load it as well. drm_mode_config_cleanup() will clean this up for us. v2: Pass on the error pointer Drop a hint about this into the state dump Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-5-ville.syrjala@linux.intel.com
2022-10-26drm/i915: Assert {pre,post}_csc_lut were assigned sensiblyVille Syrjälä3-0/+23
Since we now have the extra step from hw.(de)gamma_lut into {pre,post}_csc_lut let's make sure we didn't forget to assign them appropriately. Ie. basically making sure intel_color_check() was called when necessary (and that it did its job suitable well). Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-4-ville.syrjala@linux.intel.com
2022-10-26drm/i915: Introduce crtc_state->{pre,post}_csc_lutVille Syrjälä6-57/+114
Add an extra remapping step between the logical state of the LUTs (hw.(de)gamma_lut) as specified via uapi/bigjoiner copy vs. the actual state of the LUTs programmed into the hardware. With this we should be finally able finish the (de)gamma readout/state checker support for the remaining platforms (ilk-skl) where the same hardware LUT can be positioned either before or after the pipe CSC unit. Where we position it depends on factors such as presence of the logical degamma LUT, RGB vs. YCbCr output, full vs. limited RGB quantization range. Without the extra remapping step the state readout doesn't really know whether the LUT read from the hardware is the degamma or gamma LUT, and so we is unable to accurately store it into our crtc state. With the remapping step we know exactly where to put it given the order of the LUT vs. CSC in the hardware state. Only the initial hw->uapi state readout done during driver load/resume still has the problem of not really knowing what to do with the LUT(s). But we can just assume 1:1 mapping there and let subsequent commits fix things up. Another benefit is that we now have a place for purely internal LUTs, without complicating the bigjoiner uapi->hw copy logic. This should prove useful for streamlining glk degamma LUT handling. Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-3-ville.syrjala@linux.intel.com
2022-10-26drm/i915: Make ilk_load_luts() deal with degammaVille Syrjälä1-2/+4
Make ilk_load_luts() ready for a degamma lut. Currently we never have one, but soon we may get one from readout, and I think we may want to change the state computation such that we may end up with one even when userspace has simply supplied a gamma lut. At least the code now follows the path laid out by the ivb/bdw counterpars. Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024161514.5340-2-ville.syrjala@linux.intel.com
2022-10-22drm/i915: Introduce intel_crtc_needs_color_update()Ville Syrjälä4-19/+16
Add a common helper to answer the question "do we need to update color management stuff?". Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221021162442.27283-5-ville.syrjala@linux.intel.com
2022-10-22drm/i915: Don't flag both full modeset and fastset at the same timeVille Syrjälä1-1/+8
Be consistent in whether we flag a full modeset or a fastset for the pipe. intel_modeset_all_pipes() would seem to be the only codepath not getting this right. The other case is when we flag the fastset initially, currently we just clear the mode_changed flag and set the update_pipe flag. But we could still have connectors_changed==true or active_changed==true forcing a full modeset anyway. So check for that after clearing the mode_changed flag. And let's add a WARN to make sure we did get it right. v2: Deal with {connectors,active}_changed Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221021162442.27283-4-ville.syrjala@linux.intel.com
2022-10-22drm/i915: Remove some local 'mode_changed' boolsVille Syrjälä1-8/+6
These 'mode_changed' booleans aren't very helpful. Just replace them with direct intel_crtc_needs_modeset() calls which is more descriptive. Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221021162442.27283-3-ville.syrjala@linux.intel.com
2022-10-22drm/i915: Introduce intel_crtc_needs_fastset()Ville Syrjälä7-21/+33
Replace the somewhat obscure crtc_state.update_pipe checks with a more descriptive thing. Also nicely matches the intel_crtc_needs_modeset() counterpart for full modesets. v2: Handle one more case in the fbc code Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221021162442.27283-2-ville.syrjala@linux.intel.com
2022-10-22drm/i915: Activate DRRS after state readoutVille Syrjälä1-36/+7
On BDW+ we have just the one set of DP M/N registers. The values we write into said registers depends on whether we want DRRS to be in high or low gear. This causes issues for the state checker which currently has to assume either set of M/N (high or low refresh rate) values may appear there. That sort of works for M/N itself, but all other values derived from the M/N (dotclock, pixel rate) are not handled correctly, leading to potential for state checker mismatches. Let's avoid all those problems by simply keeping DRRS in high gear until the state checker has done its hardware state readout. Note that hitting this issue presumable became very hard after commit 1b333c679a0f ("drm/i915: Do DRRS disable/enable during pre/post_plane_update()") since the state check would have to laze about for one full second (delay used by intel_drrs_schedule_work()) to see the low refresh rate. But it is still theoretically possible. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221020120706.25728-1-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-10-21drm/i915: Allow panel fixed modes to have differing sync polaritiesVille Syrjälä1-3/+4
Apparently some panels declare multiple modes with random sync polarities. Seems a bit weird, but looks like Windows/GOP doesn't care, so let follow suit and accept alternate fixed modes regardless of their sync polarities. v2: Don't pollute the DRM_ namespace with a define (Jani) Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6968 Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221020093938.27200-1-ville.syrjala@linux.intel.com
2022-10-21drm/i915: Remove one use macroSuraj Kandpal2-8/+12
Remove one use macro for_each_connector_on_encoder which is only being used at intel_encoder_find_connector. Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221020104635.874860-2-suraj.kandpal@intel.com
2022-10-20drm/i915/dp: Remove whitespace at the end of function.Ankit Nautiyal1-1/+0
Remove extraline left after intel_dp_configure_protocol_converter. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221011063447.904649-3-ankit.k.nautiyal@intel.com
2022-10-20drm/i915/dp: Reset frl trained flag before restarting FRL trainingAnkit Nautiyal1-0/+2
For cases where DP has HDMI2.1 sink and FRL Link issues are detected, reset the flag to state FRL trained status before restarting FRL training. Fixes: 9488a030ac91 ("drm/i915: Add support for enabling link status and recovery") Cc: Swati Sharma <swati2.sharma@intel.com> Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Cc: Uma Shankar <uma.shankar@intel.com> (v2) Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221011063447.904649-2-ankit.k.nautiyal@intel.com
2022-10-19drm/i915: Print return value on errorNirmoy Das1-3/+3
Print returned error code for better debuggability. References: https://gitlab.freedesktop.org/drm/intel/-/issues/7211 Signed-off-by: Nirmoy Das <nirmoy.das@intel.com> Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221014154655.14075-1-nirmoy.das@intel.com
2022-10-18drm/i915/dgfx: Keep PCI autosuspend control 'on' by default on all dGPUAnshuman Gupta1-2/+9
DGFX platforms has lmem and cpu can access the lmem objects via mmap and i915 internal i915_gem_object_pin_map() for i915 own usages. Both of these methods has pre-requisite requirement to keep GFX PCI endpoint in D0 for a supported iomem transaction over PCI link. (Refer PCIe specs 5.3.1.4.1) Both DG1/DG2 have a known hardware bug that violates the PCIe specs and support the iomem read write transaction over PCIe bus despite endpoint is D3 state. Due to above H/W bug, we had never observed any issue with i915 runtime PM versus lmem access. But this issue becomes visible when PCIe gfx endpoint's upstream bridge enters to D3, at this point any lmem read/write access will be returned as unsupported request. But again this issue is not observed on every platform because it has been observed on few host machines DG1/DG2 endpoint's upstream bridge does not bind with pcieport driver. which really disables the PCIe power savings and leaves the bridge at D0 state. We need a unique interface to read/write from lmem with runtime PM wakeref protection something similar to intel_uncore_{read, write}, keep autosuspend control to 'on' on all discrete platforms, until we have a unique interface to read/write from lmem. This just change the default autosuspend setting of i915 on dGPU, user can still change it to 'auto'. v2: - Modified the commit message and subject with more information. - Changed the Fixes tag to LMEM support commit. [Joonas] - Changed !HAS_LMEM() Cond to !IS_DGFX(). [Rodrigo] Fixes: b908be543e44 ("drm/i915: support creating LMEM objects") Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221014113258.1284226-1-anshuman.gupta@intel.com
2022-10-17drm/i915: fix clear mask in GEN7_MISCCPCTL updateAndrzej Hajda2-4/+4
GEN7_DOP_CLOCK_GATE_ENABLE bit should be cleared, not inverse. The bug was introduced during conversion to intel_uncore_rmw helper. Suggested-by: Matt Roper <matthew.d.roper@intel.com> Fixes: 8cee664d3eb6f8 ("drm/i915: use proper helper for register updates") Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017085525.3898649-1-andrzej.hajda@intel.com
2022-10-17drm/i915: Use graphics ver, rel info for media on old platformsRadhakrishna Sripada1-1/+9
Platforms prior to MTL do not have a separate media and graphics version. On platforms where GMD id is not supported, reuse the graphics ip version, release info for media. The rest of the IP graphics, display versions would be copied during driver creation. While at it warn if GMD is not used for platforms greater than gen12. v2: - Use simple assignment to copy contents of the structure(JaniN) Fixes: c2c7075225ef ("drm/i915: Read graphics/media/display arch version from hw") Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221011153851.3781507-2-radhakrishna.sripada@intel.com
2022-10-17drm/i915: Add intel_ prefix to struct ip_versionRadhakrishna Sripada3-6/+6
Rename struct ip_version to intel_ip_version to comply with the naming conventions for structures. Suggested-by: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221011153851.3781507-1-radhakrishna.sripada@intel.com
2022-10-17drm/i915: Extend Wa_1607297627 to Alderlake-PJosé Roberto de Souza1-2/+2
Workaround 1607297627 was missed for Alderlake-P, so here extending it to it and adding the fixes tag so this WA is backported to all stable kernels. v2: - fixed subject - added Fixes tag BSpec: 54369 Cc: <stable@vger.kernel.org> # v5.17+ Fixes: dfb924e33927 ("drm/i915/adlp: Remove require_force_probe protection") Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017132432.112850-1-jose.souza@intel.com
2022-10-14drm/i915: Fix simulated GPU reset wrt. encoder HW readoutImre Deak1-7/+17
The GPU reset involves a display suspend/resume sequence, but this is done without suspending/resuming the encoders. The encoder HW readout code during resume however assumes that the encoders were suspended/resumed, at least on TypeC platforms where the TC PHYs must be left in a disconnected state during encoder-suspend, and the PHY's TypeC mode must be initialized already during encoder-resume. Since the above issue occurs only in case the display recovery during GPU reset is simulated in CI tests (on new platforms w/o the GPU reset clobbering the display), this patch fixes the issue by simply restoring the saved display state in this case w/o doing a display HW state readout / sanitization first. This also fixes the WARN below introduced by commit a82796a2e332 ("drm/i915: Fix TypeC mode initialization during system resume") <4> [319.983309] ------------[ cut here ]------------ <4> [319.983313] i915 0000:00:02.0: drm_WARN_ON(dig_port->tc_link_refcount != 1) <4> [319.983341] WARNING: CPU: 10 PID: 268 at drivers/gpu/drm/i915/display/intel_tc.c:751 intel_tc_port_sanitize_mode+0x239/0x290 [i915] <4> [319.983407] Modules linked in: fuse snd_hda_codec_hdmi i915 x86_pkg_temp_thermal mei_hdcp coretemp wmi_bmof r8153_ecm cdc_ether kvm_intel usbnet r8152 mii kvm prime_numbers snd_hda_intel ttm snd_intel_dspcfg irqbypass drm_buddy e1000e crct10dif_pclmul snd_hda_codec crc32_pclmul drm_display_helper ptp snd_hwdep ghash_clmulni_intel snd_hda_core drm_kms_helper pps_core mei_me syscopyarea video i2c_i801 snd_pcm sysfillrect i2c_smbus sysimgblt mei fb_sys_fops intel_lpss_pci wmi <4> [319.983483] CPU: 10 PID: 268 Comm: kworker/10:1H Not tainted 6.0.0-rc7-CI_DRM_12200-g394e575b57e9+ #1 <4> [319.983486] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P LP5 RVP, BIOS ADLPFWI1.R00.2313.A00.2107301001 07/30/2021 <4> [319.983488] Workqueue: events_highpri heartbeat [i915] <4> [319.983536] RIP: 0010:intel_tc_port_sanitize_mode+0x239/0x290 [i915] <4> [319.983600] Code: 85 d2 75 03 48 8b 17 48 89 14 24 e8 e1 dc 2d e1 48 8b 14 24 48 c7 c1 f8 db 5b a0 48 c7 c7 3e 3c 5e a0 48 89 c6 e8 45 d7 66 e1 <0f> 0b e9 20 fe ff ff 0f 0b 49 c7 c0 8b 3c 5e a0 e9 9e fe ff ff 48 <4> [319.983601] RSP: 0018:ffffc90001617a30 EFLAGS: 00010286 <4> [319.983604] RAX: 0000000000000000 RBX: ffff88811f9d2000 RCX: 0000000000000001 <4> [319.983606] RDX: 0000000080000001 RSI: ffffffff8231e8cd RDI: 00000000ffffffff <4> [319.983607] RBP: ffff888121e98000 R08: 0000000000000000 R09: c0000000ffffc134 <4> [319.983608] R10: 00000000000d6078 R11: ffffc900016178c8 R12: ffff88811f9d3838 <4> [319.983609] R13: ffff88811f9d397d R14: ffff888121e98000 R15: 0000000000000000 <4> [319.983611] FS: 0000000000000000(0000) GS:ffff8882a7300000(0000) knlGS:0000000000000000 <4> [319.983612] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [319.983613] CR2: 00007fe7397f1e18 CR3: 0000000006612003 CR4: 0000000000770ee0 <4> [319.983615] PKRU: 55555554 <4> [319.983616] Call Trace: <4> [319.983617] <TASK> <4> [319.983621] intel_ddi_sync_state+0x3f/0x90 [i915] <4> [319.983698] intel_modeset_setup_hw_state+0x3a3/0x1440 [i915] <4> [319.983777] ? intel_gt_reset_global+0xeb/0x160 [i915] <4> [319.983839] ? __intel_display_resume+0x15/0xe0 [i915] <4> [319.983909] __intel_display_resume+0x15/0xe0 [i915] <4> [319.983979] intel_display_finish_reset+0x58/0x130 [i915] <4> [319.984048] intel_gt_reset_global+0xf3/0x160 [i915] <4> [319.984107] ? intel_reset_guc.cold.62+0x5d/0x5d [i915] <4> [319.984189] ? 0xffffffff81000000 <4> [319.984192] ? queue_work_node+0x90/0x90 <4> [319.984202] intel_gt_handle_error+0x2c2/0x410 [i915] <4> [319.984267] ? _raw_spin_unlock_irqrestore+0x54/0x70 <4> [319.984271] ? lockdep_hardirqs_on+0xbf/0x140 <4> [319.984276] ? intel_guc_find_hung_context+0x19e/0x1d0 [i915] <4> [319.984352] reset_engine+0x99/0xd0 [i915] <4> [319.984399] ? __drm_printfn_seq_file+0x20/0x20 <4> [319.984406] heartbeat+0x4cd/0x4f0 [i915] <4> [319.984454] process_one_work+0x272/0x5b0 <4> [319.984461] worker_thread+0x37/0x370 <4> [319.984465] ? process_one_work+0x5b0/0x5b0 <4> [319.984467] kthread+0xed/0x120 <4> [319.984470] ? kthread_complete_and_exit+0x20/0x20 <4> [319.984474] ret_from_fork+0x1f/0x30 <4> [319.984484] </TASK> <4> [319.984485] irq event stamp: 36107 <4> [319.984487] hardirqs last enabled at (36113): [<ffffffff811391d6>] __up_console_sem+0x66/0x70 <4> [319.984492] hardirqs last disabled at (36118): [<ffffffff811391bb>] __up_console_sem+0x4b/0x70 <4> [319.984494] softirqs last enabled at (34316): [<ffffffff81e00323>] __do_softirq+0x323/0x48e <4> [319.984497] softirqs last disabled at (34309): [<ffffffff810c16b8>] irq_exit_rcu+0xb8/0xe0 <4> [319.984499] ---[ end trace 0000000000000000 ]--- v2: - Instead of trying to fix the suspend/resume sequence, restore simply the state w/o the HW readout/sanitization step. (Ville) References: https://lore.kernel.org/intel-gfx/20221005175251.3586272-1-imre.deak@intel.com/T/#mcfac180a67f6048096d09fa04347aa088291fafb Closes: https://gitlab.freedesktop.org/drm/intel/issues/7021 Cc: Mika Kahola <mika.kahola@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221007133307.3805735-1-imre.deak@intel.com
2022-10-11drm/i915/display: Add DC5 counter and DMC debugfs entries for MTLAnusha Srivatsa1-12/+10
MTL and dgfx use the same DC5 counter. While at it, this patch also adds the corresponding debugfs entries. Some cleanup wrt dc3co register which makes the code more readable. Driver loads all firmware that it finds in the firmware binary but platform doesn't *need* all of them. Cleaning the previous debugs entries to reflect which firmware is needed and if the needed firmware is loaded or not. MTL needs both Pipe A and Pipe B DMC to be loaded along with Main DMC. BSpec: 49788 Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221010202135.28388-1-anusha.srivatsa@intel.com
2022-10-11drm/i915: use proper helper for register updatesAndrzej Hajda4-212/+112
There is special helper for register read/modify/write. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221006163200.2803722-5-andrzej.hajda@intel.com
2022-10-11drm/i915: make intel_uncore_rmw() write unconditionallyAndrzej Hajda1-4/+4
Two small changes in intel_uncore_rmw will allow to use it more broadly: - write register unconditionally, for use with latch registers, - return old value of the register, IRQ cleanup and similar. If we really want to keep write-only-if-changed feature maybe other helper will be more suitable for it, intel_uncore_rmw name suggests unconditional write. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221006163200.2803722-4-andrzej.hajda@intel.com
2022-10-11drm/i915/display: Use intel_uncore alias if definedAndrzej Hajda1-7/+7
Alias is shorter and more readable. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221006163200.2803722-3-andrzej.hajda@intel.com
2022-10-11drm/i915/display: remove drm_device aliasesAndrzej Hajda15-105/+74
drm_device pointers are unwelcome. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221006204844.2831303-1-andrzej.hajda@intel.com
2022-10-10drm/i915: Enable atomic by default on ctg/elkVille Syrjälä1-2/+3
The watermark code for ctg/elk has been atomic ready for a long time so let's just flip the switch now that some of the last CxSR issues have been sorted out (which granted was a problem for vlv/chv as well despite them already having atomic enabled by default). v2: Rebase Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221007211108.3883-2-ville.syrjala@linux.intel.com Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-10-10drm/i915: Do the DRIVER_ATOMIC feature disable laterVille Syrjälä2-4/+4
Currently we do the DRIVER_ATOMIC disable as almost the first thing during pci probe. That involves the use of DISPLAY_VER() which is perhaps a bit sketchy now that we may need to read that out from the hardware itself. Looks like we do populate a default value for it anyway so the current does at least still work. But let's make this safer anyway and move the code into intel_device_info_runtime_init() where we also handle the same thing for the !HAS_DISPLAY case. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221007211108.3883-1-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-10-07drm/i915: Write watermarks for disabled pipes on gmch platformsVille Syrjälä1-3/+1
We've excluded gmch platforms from writing the final watermarks for any disabled pipe. IIRC the reason was perhaps some lingering issue with the watermark merging across the pipes. But I can't really see any reason for this anymore, so let's unify this behaviour. The main benefit being more consistency in register dumps when we don't have stale watermarks hanging around in the registers. Functionally there should be no difference as the hardware just ignore all of it when the pipe is disabled. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622155452.32587-9-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
2022-10-07drm/i915: Fix pipe gamma enable/disable vs. CxSR on gmch platformsVille Syrjälä1-0/+4
Like most other plane control register bits, the pipe gamma enable bit is also blocked by CxSR. So make sure we kick the machine out of CxSR before trying to change that bit. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220622155452.32587-8-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
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