- 10 Mar, 2023 1 commit
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Stanislav Lisovskiy authored
We currently have an issue with some BPPs when using DSC. According to the HW team, the reason is that a single VDSC engine instance has some BW limitations that must be accounted for. So, whenever we approach around 90% of the CDCLK, a second VDSC engine has to be used. This always means using two slices. However, in our current code, the amount of slices is calculated independently of whether we need to enable the second VDSC engine or not. This leads to some logical issues when, according to the pixel clock needs, we need to enable the second VDSC engine. But as we calculated previously that we can only use a single slice, we can't do that and fail. So, we need to fix that so that the number of VDSC engines enabled should depend on the number of slices, and the number of slices should also depend on BW requirements. Lastly, we didn't have BPP limitation for ADLP/MTL/DG2 implemented, which says that DSC output BPPs can only be chosen within the range of 8 to 27 (BSpec 49259). All of this applied together allows us to fix existing FIFO underruns, which we have in many DSC tests. v2: - Replace min with clamp_t(Jani Nikula) - Fix commit message(Swati Sharma) - Added "Closes"(Swati Sharma) BSpec: 49259 HSDES: 18027167222 Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8231Signed-off-by:Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Reviewed-by:
Vinod Govindapillai <vinod.govindapillai@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230306080401.22552-1-stanislav.lisovskiy@intel.com
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- 09 Mar, 2023 4 commits
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Madhumitha Tolakanahalli Pradeep authored
Add support to load DMC on MTL. According to the spec and based on tests done on real hardware, 0x7000 is a reasonable size limit that covers each possible payload. v2: - Tighten payload size limit. (Matt, Rodrigo) - Use a better name for the defined payload limit. (Rodrigo) Signed-off-by:
Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com> Signed-off-by:
Gustavo Sousa <gustavo.sousa@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Reviewed-by:
Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
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José Roberto de Souza authored
Latch reset of phys during DC9 and when driver is unloaded to avoid phy reset. Specification ask us to program it closer to the step that enables DC9 in DC_STATE_EN but doing this way allow us to sanitize the phy latch during driver load. BSpec: 49197 Reviewed-by:
José Roberto de Souza <jose.souza@intel.com> Signed-off-by:
Radhakrishna Sripada <radhakrishna.sripada@intel.com> Reviewed-by:
Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230301201053.928709-6-radhakrishna.sripada@intel.com
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Tejas Upadhyay authored
lock the fbdev obj before calling into i915_vma_pin_iomap(). This helps to solve below : <7>[ 93.563308] i915 0000:00:02.0: [drm:intelfb_create [i915]] no BIOS fb, allocating a new one <4>[ 93.581844] ------------[ cut here ]------------ <4>[ 93.581855] WARNING: CPU: 12 PID: 625 at drivers/gpu/drm/i915/gem/i915_gem_pages.c:424 i915_gem_object_pin_map+0x152/0x1c0 [i915] Fixes: f0b6b01b ("drm/i915: Add ww context to intel_dpt_pin, v2.") Cc: Chris Wilson <chris.p.wilson@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
Tejas Upadhyay <tejas.upadhyay@intel.com> Signed-off-by:
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Radhakrishna Sripada authored
The commit 2357f2b2 ("drm/i915/mtl: Initial display workarounds") extended the workaround Wa_16015201720 to MTL. However the registers that the original WA implemented moved for MTL. Implement the workaround with the correct register. v3: Skip clock gating for pipe C, D DMC's and fix the title Fixes: 2357f2b2 ("drm/i915/mtl: Initial display workarounds") Cc: Matt Atwood <matthew.s.atwood@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by:
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- 07 Mar, 2023 4 commits
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Ville Syrjälä authored
The idea that ctg uses different HPD live state bits is total nonsense, at least on my machine (Dell Latitude E5400). The only reason DP-B even works on my ctg is that DP-D live state is stuck high, even though there is no physical DP-D port. So when the detect checks DP-B live state it sees the stuck live state of DP-D instead. If I hack the driver to not register DP-D at all, and thus we never enabe DP-D HPD, DP-B stops working as well. Just to put some conclusive evidence into this mess, here are the actual hotplug register values for each port: Everything disconnected: PORT_HOTPLUG_EN (0x00061110): 0x00000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 PORT_HOTPLUG_EN (0x00061110): 0x08000000 PORT_HOTPLUG_STAT (0x00061114): 0x08000000 PORT_HOTPLUG_EN (0x00061110): 0x10000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 PORT_HOTPLUG_EN (0x00061110): 0x20000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 Only port B connected: PORT_HOTPLUG_EN (0x00061110): 0x00000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 PORT_HOTPLUG_EN (0x00061110): 0x08000000 PORT_HOTPLUG_STAT (0x00061114): 0x08000000 PORT_HOTPLUG_EN (0x00061110): 0x10000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 PORT_HOTPLUG_EN (0x00061110): 0x20000000 PORT_HOTPLUG_STAT (0x00061114): 0x20000000 Only port C connected: PORT_HOTPLUG_EN (0x00061110): 0x00000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 PORT_HOTPLUG_EN (0x00061110): 0x08000000 PORT_HOTPLUG_STAT (0x00061114): 0x08000000 PORT_HOTPLUG_EN (0x00061110): 0x10000000 PORT_HOTPLUG_STAT (0x00061114): 0x10000000 PORT_HOTPLUG_EN (0x00061110): 0x20000000 PORT_HOTPLUG_STAT (0x00061114): 0x00000000 So the enable bit and live state bit always match 1:1. 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/20230302161013.29213-4-ville.syrjala@linux.intel.com
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Ville Syrjälä authored
SKL doesn't have any north DE hotplug stuff. Currently we're trying to read DDI A live state from the BDW north DE bit, instead of the approproate south DE bit. Fix it. And for good measure clear the pointer to the north hpd pin array, so that we'll actually notice if some other place is also using the wrong thing. Reviewed-by:
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Ville Syrjälä authored
We'll need dig_port->connected() to be there for a HPD live state check during eDP connector probing. Reorder intel_ddi_init() accordingly. g4x_dp_init() is already fine. v2: Fix comment style while at it Reviewed-by:
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Ville Syrjälä authored
The most modern VBT I've observed in the wild is version 250. The child dev size hasn't changed since version 216, so bump the version number in the expected child dev size check. Signed-off-by:
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- 06 Mar, 2023 12 commits
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Jani Nikula authored
Split out the RPS parts so they can be conditionally compiled out later. Signed-off-by:
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Jani Nikula authored
Follow the contemporary convention for struct drm_i915_private * naming. Cc: Imre Deak <imre.deak@intel.com> Reviewed-by:
Imre Deak <imre.deak@intel.com> Signed-off-by:
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Jani Nikula authored
sizeof(struct intel_dmc) > 1024 bytes, allocated on all platforms as part of struct drm_i915_private, whether they have DMC or not. Allocate struct intel_dmc dynamically, and hide all the dmc details behind an opaque pointer in intel_dmc.c. Care must be taken to take into account all cases: DMC not supported on the platform, DMC supported but not initialized, and DMC initialized but not loaded. For the second case, we need to move the wakeref out of struct intel_dmc. v2: - Rebase to kzalloc dmc after runtime pm get (Imre) Cc: Imre Deak <imre.deak@intel.com> Reviewed-by:
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Jani Nikula authored
Start preparing for dynamically allocated struct intel_dmc by adding i915_to_dmc() and dmc->i915, and using them. Take the future NULL dmc pointer into account already now, and add separate logging for initialization in the DMC debugfs. v3: - Obtain runtime pm reference first (Imre) v2: - Don't reduce debugfs output (Imre) Cc: Imre Deak <imre.deak@intel.com> Reviewed-by:
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Jani Nikula authored
This will help in follow-up changes. Cc: Imre Deak <imre.deak@intel.com> Reviewed-by:
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Jani Nikula authored
There's only one reference to the struct intel_dmc members dc_state, target_dc_state, and allowed_dc_mask within intel_dmc.c, begging the question why they are under struct intel_dmc to begin with. Moreover, the only references to i915->display.dmc outside of intel_dmc.c are to these members. They don't belong. Move them from struct intel_dmc to struct i915_power_domains, which seems like a more suitable place. Cc: Imre Deak <imre.deak@intel.com> Reviewed-by:
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Jani Nikula authored
As intel_pm.[ch] used to contain much more, intel_pm.h was included in a lot of places. Many of them are now unnecessary. Remove. Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ab9a7147b0cd63d95b9f27ed40615b9c9be18f84.1677678803.git.jani.nikula@intel.com
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Jani Nikula authored
All intel_suspend_hw() does is clear PCH_LP_PARTITION_LEVEL_DISABLE bit in SOUTH_DSPCLK_GATE_D for LPT LP. intel_suspend_hw() gets called from i915_drm_suspend(). However, i915_drm_suspend_late() calls intel_display_power_suspend_late(), which in turn calls hsw_enable_pc8() on HSW and BDW. The first thing that does is clear PCH_LP_PARTITION_LEVEL_DISABLE bit in SOUTH_DSPCLK_GATE_D. Remove the duplicated clearing of the bit, effectively delaying it from i915_drm_suspend() to i915_drm_suspend_late(), and remove the unnecessary intel_suspend_hw() function altogether. Cc: Imre Deak <imre.deak@intel.com> Signed-off-by:
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Jani Nikula authored
All the init in intel_pm_setup() is related to runtime pm. Move them to intel_runtime_pm_init_early(), and remove intel_pm_setup(). Signed-off-by:
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Jani Nikula authored
Remove the leftover from moving and renaming the file from driver top level. Signed-off-by:
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Jani Nikula authored
Relatively few places need the DSC and DSS register definitions. Move them to intel_vdsc_regs.h. Signed-off-by:
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Jani Nikula authored
On TGL+ the DSS control registers are at different offsets, and there's one per pipe. Fix the offsets to fix dual link DSI for TGL+. There would be helpers for this in the DSC code, but just do the quick fix now for DSI. Long term, we should probably move all the DSS handling into intel_vdsc.c, so exporting the helpers seems counter-productive. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8232 Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: stable@vger.kernel.org Signed-off-by:
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- 01 Mar, 2023 4 commits
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Ashutosh Dixit authored
The value shown by power1_max_interval in millisec is essentially: ((1.x * power(2,y)) * 1000) >> 10 Where x and y are read from a HW register. On ATSM, x and y are 0 on power-up so the value shown is 0. Writes of 0 to power1_max_interval had previously been disallowed to avoid computing ilog2(0) but this resulted in the corner-case bug below. Therefore allow writes of 0 now but special case that write to x = y = 0. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7754Signed-off-by:
Ashutosh Dixit <ashutosh.dixit@intel.com> Reviewed-by:
Badal Nilawar <badal.nilawar@intel.com> Signed-off-by:
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Ville Syrjälä authored
Fix the code to correctly determine whether delayed vblank is used or not. Signed-off-by:
Jouni Högander <jouni.hogander@intel.com>
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Ville Syrjälä authored
The "window2" delay is just the difference of vactive (undelayed vblank) vs. vblank_start (delayed vblank). Just use vblank_start during the VRR calculations so that things work correctly regardless of whether delayed vblank is used or not. Signed-off-by:
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Ville Syrjälä authored
Grab the HDR DPCD refresh timeout (time we need to wait after writing the sourc OUI before the HDR DPCD registers are ready) from the VBT. Windows doesn't even seem to have any default value for this, which is perhaps a bit weird since the VBT value is documented as TGL+ and I thought the HDR backlight stuff might already be used on earlier platforms. To play it safe I left the old hardcoded 30ms default in place. Digging through some internal stuff that seems to have been a number given by the vendor for one particularly slow TCON. Although I did see 50ms mentioned somewhere as well. Let's also include the value in the debug print to ease debugging, and toss in the customary connector id+name as well. The TGL Thinkpad T14 I have sets this to 0 btw. So the delay is now gone on this machine: [CONNECTOR:308:eDP-1] Detected Intel HDR backlight interface version 1 [CONNECTOR:308:eDP-1] Using Intel proprietary eDP backlight controls [CONNECTOR:308:eDP-1] SDR backlight is controlled through PWM [CONNECTOR:308:eDP-1] Using native PCH PWM for backlight control (controller=0) [CONNECTOR:308:eDP-1] Using AUX HDR interface for backlight control (range 0..496) [CONNECTOR:308:eDP-1] Performing OUI wait (0 ms) Cc: Lyude Paul <lyude@redhat.com> Signed-off-by:
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- 27 Feb, 2023 1 commit
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Matt Roper authored
The bspec was updated with a minor change to the 'DCC mode select' setting to be programmed during combo PHY initialization. v2: - Keep the opencoded rmw behavior instead of switching to intel_de_rmw(). We need to read from a _LN register, but write to the _GRP register to update all lanes. Bspec: 49291 Signed-off-by:
Matt Atwood <matthew.s.atwood@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230221201836.2886794-1-matthew.d.roper@intel.com
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- 25 Feb, 2023 1 commit
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Lucas De Marchi authored
Define MCR_REG() in the same header where i915_mcr_reg_t is defined, like i915_reg_t and _MMIO(). It's a more natural place for such a definition so it's not mixed with the registers for the platforms. Signed-off-by:
Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by:
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- 24 Feb, 2023 3 commits
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Rodrigo Vivi authored
These are left overs from the conversion towards intel_de_rmw. Fixes: aa80b2b1 ("drm/i915/display/panel: use intel_de_rmw if possible in panel related code") Cc: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by:
Andrzej Hajda <andrzej.hajda@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230224153707.813953-1-rodrigo.vivi@intel.com
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Ankit Nautiyal authored
Add snps phy table values for HDMI pixel clocks 267.30 MHz and 319.89 MHz. Values are based on the Bspec algorithm for PLL programming for HDMI. Cc: stable@vger.kernel.org Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8008Signed-off-by:
Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by:
Uma Shankar <uma.shankar@intel.com> Signed-off-by:
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Jouni Högander authored
Currently we are using hardcoded 7 for io and fast wake lines. According to Bspec io and fast wake times are both 42us for DISPLAY_VER >= 12 and 50us and 32us for older platforms. Calculate line counts for these and configure them into PSR2_CTL accordingly Use 45 us for the fast wake calculation as 42 seems to be too tight based on testing. Bspec: 49274, 4289 Cc: Mika Kahola <mika.kahola@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Fixes: 64cf40a1 ("drm/i915/psr: Program default IO buffer Wake and Fast Wake") Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7725Signed-off-by:
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- 23 Feb, 2023 8 commits
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Ville Syrjälä authored
intel_dp_has_audio() has no need for the crtc_state, so don't pass it in. Signed-off-by:
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Ville Syrjälä authored
I forgot to call intel_audio_compute_config() on DP MST, which means ELD doesn't get populated and passed to the audio driver. References: https://gitlab.freedesktop.org/drm/intel/-/issues/8097 Fixes: 5d986635 ("drm/i915/audio: Precompute the ELD") Signed-off-by:
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Ville Syrjälä authored
FBC on gen2/3 seems to trigger page table errors. No visual artifacts are visible, and essentially the same FBC code works on gen4 so these seem entirely spurious. There are also hints in gen3 bspec indicating that certain bits in PGTBL_ER are just not wired up correctly in the hardware. Ideally we'd want to mask out only the bogus bits, but sadly there is no mask for PGTBL_ER, and instead we are forced to mask out all page table errors via EMR :( Signed-off-by:
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Ville Syrjälä authored
Pull the EMR calculation into small helpers. Signed-off-by:
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Ville Syrjälä authored
PGTBL_ER contains the individual reasons for the page table error interrupt. Dump it out. Signed-off-by:
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Ville Syrjälä authored
The gen2/gen3 irq code is supposed to be identical apart from the 32bit vs. 16bit access width. The recent change to intel_de_rmw() ruined that symmetry. Restore it to avoid needless mental gymnastics when comparing the two codepaths. And while at it remove the extra eir!=0 check that somehow ended up in the gen2 codepath only. Signed-off-by:
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Ville Syrjälä authored
At least on some platforms (tested on ctg) the way vgacon does screen blanking seems to flag constant FIFO underruns, which means we have to be prepared for them while the driver is loading. Currently there is a time window between drm_crtc_init() and intel_sanitize_fifo_underrun_reporting() during which FIFO underrun reporting is in fact marked as enabled. Thus we may end up mistakenly detecting these bogus underruns during driver init. Close the race by marking FIFO underrun reporting as disabled prior to even registering the crtc. intel_sanitize_fifo_underrun_reporting()/etc. will re-enable it later if needed. Signed-off-by:
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Ville Syrjälä authored
The audio logic lives in the transcoder rather than the pipe, so start tracking it like that. This is only really important for bigjoiner cases where tracking by pipe doesn't work at all since intel_audio_codec_{enable,disable}() won't even be called for the slave pipe. This means the state checker won't find the ELD for the slave pipe and gets upset. The PD->has_audio readout does currently work since that gets read out from the same transcoder for both pipes. For other cases this doesn't actually matter since it's only the normal pipe transcoders that are audio capable, whereas the more special transcoders (EDP/DSI) are not. v2: Fix kernel docs Signed-off-by:
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- 21 Feb, 2023 1 commit
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Andrzej Hajda authored
The helper makes the code more compact and readable. Signed-off-by:
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- 20 Feb, 2023 1 commit
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Ville Syrjälä authored
We just wrote the EDP transcoder's VTOTAL register a few lines earlier, so instead of reading it back out again let's just generate the same value for the transocder B/C register. Signed-off-by:
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