Starting with Xe_LP+, GFX_MSTR_IRQ contains status bits that have W1C
behavior. If we do not properly reset them, we would miss delivery of
interrupts if a pending bit is set when enabling IRQs.
As an example, the display part of our probe routine contains paths
where we wait for vblank interrupts. If a display interrupt was already
pending when enabling IRQs, we would time out waiting for the vblank.
Avoid the potential issue by clearing GFX_MSTR_IRQ as part of the IRQ
reset.
v2:
- Move logic from gen11_gt_irq_reset() to dg1_irq_reset(). (Matt)
BSpec: 50875, 54028
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230920195351.59421-2-gustavo.sousa@intel.com
Unify on making the calls from display code. Need to add an if ladder in
gen8_de_irq_postinstall() for now, but the function looks like it could
be overall be better split by platform. Something for the future.
The display version check for mtp seems a bit suspect, but this matches
current code.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fe51744aec9e2f465caf0d699b8a15591859f89e.1691509966.git.jani.nikula@intel.com
Add a helper for accessing uncore->regs instead of doing it
directly. This will help display code reuse with the xe driver.
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230627095128.208071-1-jani.nikula@intel.com
Split (non-hotplug) display irq handling out of i915_irq.[ch] into
display/intel_display_irq.[ch].
v3:
- Preserve [I915_MAX_PIPES] harder (kernel test robot)
v2:
- Rebase
- Preserve [I915_MAX_PIPES] in functions (kernel test robot)
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515101738.2399816-3-jani.nikula@intel.com
Split hotplug irq handling out of i915_irq.[ch] into
display/intel_hotplug_irq.[ch].
The line between the new intel_hotplug_irq.[ch] and the existing
intel_hotplug.[ch] needs further clarification, but the first step is to
move the stuff out of i915_irq.[ch].
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515101738.2399816-2-jani.nikula@intel.com
Xe_LPD+ defines interrupt bits for only DDI ports in the DE Port
Interrupt registers. The bits for Type-C ports are defined in the PICA
interrupt registers.
BSpec: 50064
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428095433.4109054-10-mika.kahola@intel.com
A lot of places include i915_reg.h implicitly via i915_irq.h, which gets
included implicitly via intel_display_trace.h. Remove the includes from
the headers, and include i915_reg.h and i915_irq.h explicitly where
needed.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230419094243.366821-1-jani.nikula@intel.com
Add a mechanism by which we can enable the HPD sense for
individual encoders.
This will be used during eDP probing to figure out if
anything is actually connected. The normal intel_hpd_irq_setup()
thing doesn't work since we only do that after probing the
outputs, and we only enable HPD sense for encoders that were
successfully probed.
The other idea that crossed my minds was to just turn on
HPD sense for all pins before output probing and let hpd_irq_setup()
clean it up afterwards. But that doesn't work for BXT/GLK where
the HPD invert information comes from the VBT child device.
So looks like this really needs to be per-encoder.
v2: Give it a better name (Jani)
v3: Deal with mtl
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> #v2
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417131728.7705-3-ville.syrjala@linux.intel.com
Pair each <platform>_hotplug_enables() function with
a corresponding <platform>_hotplug_mask() function so that
we can determine right bits to clear on a per hpd_pin basis.
We'll need this for turning on HPD sense for a specific
encoder rather than just all of them.
v2: Drop the unused 'i915' param (Jani)
v3: Drop the _foo_hotplug_enables() redirection too
v4: Deal with mtp
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com> #v3
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417131728.7705-2-ville.syrjala@linux.intel.com
In multi-gt systems IRQs need to be reset and enabled per GT.
This might add some redundancy when handling interrupts for
engines that might not exist in every tile, but helps to keep the
code cleaner and more understandable.
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417235356.1291060-1-andi.shyti@linux.intel.com
PICA is used for DP alt mode and TBT modes. Hotplug interruption is routed
from PICA chip to south display engine and from there to north display
engine. This patch adds functionality to enable hotplug detection for
all Type-C ports (4 ports available).
Differently from HPD in south display, PICA provides a dedicated HPD
control register for each supported port, so we loop over ports
ourselves instead of using intel_hpd_hotplug_enables() or
intel_get_hpd_pins().
BSpec: 49305, 55726, 65107, 65300
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230413212443.1504245-6-radhakrishna.sripada@intel.com
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: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230302161013.29213-3-ville.syrjala@linux.intel.com
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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125185234.21599-6-ville.syrjala@linux.intel.com
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
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: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230125185234.21599-3-ville.syrjala@linux.intel.com
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
intel_bios_is_port_hpd_inverted() is only used on bxt/glk on
which we always have encoder->devdata available. So consult
that instead of digging around in vbt.ports[].
And rename the function to match the common pattern.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230208015508.24824-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
bxt_hotplug_enables() needs to dig out not only the
hpd_pin but also the VBT child device info, so let's just
pass in the whole encoder to avoid having to look things
up multiple times.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230208015508.24824-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Starting from ICL, the default for MIPI GPIO sequences seems to be using
native GPIOs i.e. GPIOs available in the GPU. These native GPIOs reuse
many pins that quite frankly seem scary to poke based on the VBT
sequences. We pretty much have to trust that the board is configured
such that the relevant HPD, PP_CONTROL and GPIO bits aren't used for
anything else.
MIPI sequence v4 also adds a flag to fall back to non-native sequences.
v5:
- Wrap SHOTPLUG_CTL_DDI modification in spin_lock() in icp_irq_handler()
too (Ville)
- References instead of Closes issue 6131 because this does not fix everything
v4:
- Wrap SHOTPLUG_CTL_DDI modification in spin_lock_irq() (Ville)
v3:
- Fix -Wbitwise-conditional-parentheses (kernel test robot <lkp@intel.com>)
v2:
- Fix HPD pin output set (impacts GPIOs 0 and 5)
- Fix GPIO data output direction set (impacts GPIOs 4 and 9)
- Reduce register accesses to single intel_de_rwm()
References: https://gitlab.freedesktop.org/drm/intel/-/issues/6131
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219105955.4014451-1-jani.nikula@intel.com
- gvt-next stuff mostly with refactor for the new MDEV interface.
i915 Changes:
- PSR fixes and improvements (Jouni)
- DP DSC fixes (Vinod, Jouni)
- More general display cleanups (Jani)
- More display collor management cleanup targetting degamma (Ville)
- remove circ_buf.h includes (Jiri)
- wait power off delay at driver remove to optimize probe (Jani)
- More audio cleanup targeting the ELD precompute readout (Ville)
- Enable DC power states on all eDP ports (Imre)
- RPL-P stepping info (Matt Atwood)
- MTL enabling patches (RK)
- Removal of DG2 force_probe (Matt)
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Merge tag 'drm-intel-next-2022-11-18' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
GVT Changes:
- gvt-next stuff mostly with refactor for the new MDEV interface.
i915 Changes:
- PSR fixes and improvements (Jouni)
- DP DSC fixes (Vinod, Jouni)
- More general display cleanups (Jani)
- More display collor management cleanup targetting degamma (Ville)
- remove circ_buf.h includes (Jiri)
- wait power off delay at driver remove to optimize probe (Jani)
- More audio cleanup targeting the ELD precompute readout (Ville)
- Enable DC power states on all eDP ports (Imre)
- RPL-P stepping info (Matt Atwood)
- MTL enabling patches (RK)
- Removal of DG2 force_probe (Matt)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y3f71obyEkImXoUF@intel.com
The last user of macros from that include was removed in 2018 by the
commit below.
Fixes: 6cc42152b0 ("drm/i915: Remove support for legacy debugfs crc interface")
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221115070302.4064-1-jirislaby@kernel.org
Convert some usages of legacy DRM logging macros into versions which tell
us on which device have the events occurred.
v2:
* Don't have struct drm_device as local. (Jani, Ville)
v3:
* Store gt, not i915, in workaround list. (John)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221109104633.2579245-1-tvrtko.ursulin@linux.intel.com
- More VBT specific code clean-up, doc, organization,
and improvements (Ville)
- More MTL enabling work (Matt, RK, Anusha, Jose)
- FBC related clean-ups and improvements (Ville)
- Removing unused sw_fence_await_reservation (Niranjana)
- Big chunch of display house clean-up (Ville)
- Many Watermark fixes and clean-ups (Ville)
- Fix device info for devices without display (Jani)
- Fix TC port PLLs after readout (Ville)
- DPLL ID clean-ups (Ville)
- Prep work for finishing (de)gamma readout (Ville)
- PSR fixes and improvements (Jouni, Jose)
- Reject excessive dotclocks early (Ville)
- DRRS related improvements (Ville)
- Simplify uncore register updates (Andrzej)
- Fix simulated GPU reset wrt. encoder HW readout (Imre)
- Add a ADL-P workaround (Jose)
- Fix clear mask in GEN7_MISCCPCTL update (Andrzej)
- Temporarily disable runtime_pm for discrete (Anshuman)
- Improve fbdev debugs (Nirmoy)
- Fix DP FRL link training status (Ankit)
- Other small display fixes (Ankit, Suraj)
- Allow panel fixed modes to have differing sync
polarities (Ville)
- Clean up crtc state flag checks (Ville)
- Fix race conditions during DKL PHY accesses (Imre)
- Prep-work for cdclock squash and crawl modes (Anusha)
- ELD precompute and readout (Ville)
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Merge tag 'drm-intel-next-2022-10-28' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Hotplug code clean-up and organization (Jani, Gustavo)
- More VBT specific code clean-up, doc, organization,
and improvements (Ville)
- More MTL enabling work (Matt, RK, Anusha, Jose)
- FBC related clean-ups and improvements (Ville)
- Removing unused sw_fence_await_reservation (Niranjana)
- Big chunch of display house clean-up (Ville)
- Many Watermark fixes and clean-ups (Ville)
- Fix device info for devices without display (Jani)
- Fix TC port PLLs after readout (Ville)
- DPLL ID clean-ups (Ville)
- Prep work for finishing (de)gamma readout (Ville)
- PSR fixes and improvements (Jouni, Jose)
- Reject excessive dotclocks early (Ville)
- DRRS related improvements (Ville)
- Simplify uncore register updates (Andrzej)
- Fix simulated GPU reset wrt. encoder HW readout (Imre)
- Add a ADL-P workaround (Jose)
- Fix clear mask in GEN7_MISCCPCTL update (Andrzej)
- Temporarily disable runtime_pm for discrete (Anshuman)
- Improve fbdev debugs (Nirmoy)
- Fix DP FRL link training status (Ankit)
- Other small display fixes (Ankit, Suraj)
- Allow panel fixed modes to have differing sync
polarities (Ville)
- Clean up crtc state flag checks (Ville)
- Fix race conditions during DKL PHY accesses (Imre)
- Prep-work for cdclock squash and crawl modes (Anusha)
- ELD precompute and readout (Ville)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y1wd6ZJ8LdJpCfZL@intel.com
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: 8cee664d3e ("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
Use *_hpd_invert() helpers whenever possible to isolate logic specific
to hotplug inversion from common HPD setup logic to improve readability
and maintainability of the source code.
While we only define dg1_hpd_invert() here, future platforms are likely
to have different hotplug inversion needs, thus it makes sense grouping
different implementations under a common suffix.
v2: Fix coding style and prefer to use small *_hdp_invert() helpers
instead of a generic one.
CC: Jani Nikula <jani.nikula@linux.intel.com>
CC: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220922164949.163985-1-gustavo.sousa@intel.com
drm/i915 feature pull #2 for v6.1:
Features and functionality:
- More Meteorlake platform enabling (Radhakrishna, Imre, Madhumitha)
- Allow seamless M/N changes on eDP panels that support it (Ville)
- Switch DSC debugfs from output bpp to input bpc (Swati)
Refactoring and cleanups:
- Clocking and DPLL refactoring and cleanups to support seamless M/N (Ville)
- Plenty of VBT definition and parsing updates and cleanups (Ville)
- Extract SKL watermark code to a separate file, and clean up (Ville)
- Clean up IPC interfaces and debugfs (Jani)
- Continue moving display data under drm_i915_private display sub-struct (Jani)
- Display quirk handling refactoring and abstractions (Jani)
- Stop using implicit dev_priv in gmbus registers (Jani)
- BUG_ON() removals and conversions to drm_WARN_ON() and BUILD_BUG_ON() (Jani)
- Use drm_dp_phy_name() for logging (Jani)
- Use REG_BIT() macros for CDCLK registers (Stan)
- Move display and media IP versions to runtime info (Radhakrishna)
Fixes:
- Fix DP MST suspend to avoid use-after-free (Andrzej)
- Fix HPD suspend to avoid use-after-free for fbdev (Andrzej)
- Fix various PSR issues regarding selective update and damage clips (Jouni)
- Fix runtime pm wakerefs for driver remove and release (Mitul Golani)
- Fix conditions for filtering fixed modes for panels (Ville)
- Fix TV encoder clock computation (Ville)
- Fix dvo mode_valid hook return type (Nathan Huckleberry)
Merges:
- Backmerge drm-next to sync the DP MST atomic changes (Jani)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87o7vfr064.fsf@intel.com
Rename intel_hpd_init_work() to the more generic intel_hpd_init_early(),
and move the hotplug storm initialization there. This lets us move the
HPD_STORM_DEFAULT_THRESHOLD macro to intel_hotplug.c too.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220916130634.3781122-2-jani.nikula@intel.com
When we hook up interrupts (in the next patch), interrupts for the media
GT are still processed as part of the primary GT's interrupt flow. As
such, we should share the same IRQ lock with the primary GT. Let's
convert gt->irq_lock into a pointer and just point the media GT's
instance at the same lock the primary GT is using.
v2:
- Point media's gt->irq_lock at the primary GT lock properly. (Daniele)
- Fix jump target for intel_root_gt_init_early errors. (Daniele)
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906234934.3655440-14-matthew.d.roper@intel.com
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
