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path: root/drivers/gpu/drm/i915/i915_params.c
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2023-03-25drm/i915: Add i915.enable_sagv modparamVille Syrjälä
Currently we have no sane way to forcibly disable SAGV, which makes debugging things a PITA. Manually poking at the pcode mailbox with it's various SAGV/QGV/PSF formats is no fun, and likely to be clobbered by the driver anyway. Let's add a modparam for this. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230322181219.5511-1-ville.syrjala@linux.intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2023-03-24drm/i915/dpt: Add a modparam to disable DPT via the chicken bitVille Syrjälä
Add i915.enable_dpt modparam to allow disabling the DPT usage in hardware via the chicken bit. Useful when debugging potential DPT issues. Quickly smoke tested on ADL. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230320090522.9909-6-ville.syrjala@linux.intel.com Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
2023-01-25drm/i915/params: use generics for parameter freeJani Nikula
Replace the __builtin_strcmp() if ladder with generics. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-3-jani.nikula@intel.com
2023-01-25drm/i915/params: use generics for parameter dupJani Nikula
Replace the __builtin_strcmp() if ladder with generics. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-2-jani.nikula@intel.com
2023-01-25drm/i915/params: use generics for parameter printingJani Nikula
Replace the __builtin_strcmp() if ladder with generics. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Luca Coelho <luciano.coelho@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-1-jani.nikula@intel.com
2023-01-24Merge tag 'drm-intel-gt-next-2023-01-18' of ↵Daniel Vetter
git://anongit.freedesktop.org/drm/drm-intel into drm-next Driver Changes: Fixes/improvements/new stuff: - Fix workarounds on Gen2-3 (Tvrtko Ursulin) - Fix HuC delayed load memory leaks (Daniele Ceraolo Spurio) - Fix a BUG caused by impendance mismatch in dma_fence_wait_timeout and GuC (Janusz Krzysztofik) - Add DG2 workarounds Wa_18018764978 and Wa_18019271663 (Matt Atwood) - Apply recommended L3 hashing mask tuning parameters (Gen12+) (Matt Roper) - Improve suspend / resume times with VT-d scanout workaround active (Andi Shyti, Chris Wilson) - Silence misleading "mailbox access failed" warning in snb_pcode_read (Ashutosh Dixit) - Fix null pointer dereference on HSW perf/OA (Umesh Nerlige Ramappa) - Avoid trampling the ring during buffer migration (and selftests) (Chris Wilson, Matthew Auld) - Fix DG2 visual corruption on small BAR systems by not forgetting to copy CCS aux state (Matthew Auld) - More fixing of DG2 visual corruption by not forgetting to copy CCS aux state of backup objects (Matthew Auld) - Fix TLB invalidation for Gen12.50 video and compute engines (Andrzej Hajda) - Limit Wa_22012654132 to just specific steppings (Matt Roper) - Fix userspace crashes due eviction not working under lock contention after the object locking conversion (Matthew Auld) - Avoid double free is user deploys a corrupt GuC firmware (John Harrison) - Fix 32-bit builds by using "%zu" to format size_t (Nirmoy Das) - Fix a possible BUG in TTM async unbind due not reserving enough fence slots (Nirmoy Das) - Fix potential use after free by not exposing the GEM context id to userspace too early (Rob Clark) - Show clamped PL1 limit to the user (hwmon) (Ashutosh Dixit) - Workaround unreliable reset on Jasperlake (Chris Wilson) - Cover rest of SVG unit MCR registers (Gustavo Sousa) - Avoid PXP log spam on platforms which do not support the feature (Alan Previn) - Re-disable RC6p on Sandy Bridge to avoid GPU hangs and visual glitches (Sasa Dragic) Future platform enablement: - Manage uncore->lock while waiting on MCR register (Matt Roper) - Enable Idle Messaging for GSC CS (Vinay Belgaumkar) - Only initialize GSC in tile 0 (José Roberto de Souza) - Media GT and Render GT share common GGTT (Aravind Iddamsetty) - Add dedicated MCR lock (Matt Roper) - Implement recommended caching policy (PVC) (Wayne Boyer) - Add hardware-level lock for steering (Matt Roper) - Check full IP version when applying hw steering semaphore (Matt Roper) - Enable GuC GGTT invalidation from the start (Daniele Ceraolo Spurio) - MTL GSC firmware support (Daniele Ceraolo Spurio, Jonathan Cavitt) - MTL OA support (Umesh Nerlige Ramappa) - MTL initial gt workarounds (Matt Roper) Driver refactors: - Hold forcewake and MCR lock over PPAT setup (Matt Roper) - Acquire fw before loop in intel_uncore_read64_2x32 (Umesh Nerlige Ramappa) - GuC filename cleanups and use submission API version number (John Harrison) - Promote pxp subsystem to top-level of i915 (Alan Previn) - Finish proofing the code agains object size overflows (Chris Wilson, Gwan-gyeong Mun) - Start adding module oriented dmesg output (John Harrison) Miscellaneous: - Correct kerneldoc for intel_gt_mcr_wait_for_reg() (Matt Roper) - Bump up sample period for busy stats selftest (Umesh Nerlige Ramappa) - Make GuC default_lists const data (Jani Nikula) - Fix table order verification to check all FW types (John Harrison) - Remove some limited use register access wrappers (Jani Nikula) - Remove struct_member macro (Andrzej Hajda) - Remove hardcoded value with a macro (Nirmoy Das) - Use helper func to find out map type (Nirmoy Das) - Fix a static analysis warning (John Harrison) - Consolidate VMA active tracking helpers (Andrzej Hajda) - Do not cover all future platforms in TLB invalidation (Tvrtko Ursulin) - Replace zero-length arrays with flexible-array members (Gustavo A. R. Silva) - Unwind hugepages to drop wakeref on error (Chris Wilson) - Remove a couple of superfluous i915_drm.h includes (Jani Nikula) Merges: - Merge drm/drm-next into drm-intel-gt-next (Rodrigo Vivi) danvet: Fix up merge conflict in intel_uc_fw.c, we ended up with 2 copies of try_firmware_load() somehow. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/Y8fW2Ny1B1hZ5ZmF@tursulin-desk
2023-01-05drm/i915: Expand force_probe to block probe of devices as well.Rodrigo Vivi
There are new cases where we want to block i915 probe, such as when experimenting or developing the new Xe driver. But also, with the new hybrid cards, users or developers might want to use i915 only on integrated and fully block the probe of the i915 for the discrete. Or vice versa. There are even older development and validation reasons, like when you use some distro where the modprobe.blacklist is not present. But in any case, let's introduce a more granular control, but without introducing yet another parameter, but using the existent force_probe one. Just by adding a ! in the begin of the id in the force_probe, like in this case where we would block the probe for Alder Lake: $ insmod i915.ko force_probe='!46a6' v2: Take care of '*' and '!*' cases as pointed out by Gustavo and Jani. Cc: Jani Nikula <jani.nikula@intel.com> Cc: Gustavo Sousa <gustavo.sousa@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230103194701.1492984-1-rodrigo.vivi@intel.com
2022-12-09drm/i915/uc: Introduce GSC FWDaniele Ceraolo Spurio
On MTL the GSC FW needs to be loaded on the media GT by the graphics driver. We're going to treat it like a new uc_fw, so add the initial defs and init/fini functions for it. Similarly to the other FWs, the GSC FW path can be overridden via modparam. The modparam can also be used to disable the GSC FW loading by setting it to an empty string. Note that the new structure has been called intel_gsc_uc to avoid confusion with the existing intel_gsc, which instead represents the heci gsc interfaces. v2: re-order Makefile list to be properly sorted (Jani, Alan), better comment (alan) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Alan Previn <alan.previn.teres.alexis@intel.com> Cc: John Harrison <John.C.Harrison@Intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221208200521.2928378-2-daniele.ceraolospurio@intel.com
2022-09-24drm: POC drm on dyndbg - use in core, 2 helpers, 3 drivers.Jim Cromie
Use DECLARE_DYNDBG_CLASSMAP across DRM: - in .c files, since macro defines/initializes a record - in drivers, $mod_{drv,drm,param}.c ie where param setup is done, since a classmap is param related - in drm/drm_print.c since existing __drm_debug param is defined there, and we ifdef it, and provide an elaborated alternative. - in drm_*_helper modules: dp/drm_dp - 1st item in makefile target drivers/gpu/drm/drm_crtc_helper.c - random pick iirc. Since these modules all use identical CLASSMAP declarations (ie: names and .class_id's) they will all respond together to "class DRM_UT_*" query-commands: :#> echo class DRM_UT_KMS +p > /proc/dynamic_debug/control NOTES: This changes __drm_debug from int to ulong, so BIT() is usable on it. DRM's enum drm_debug_category values need to sync with the index of their respective class-names here. Then .class_id == category, and dyndbg's class FOO mechanisms will enable drm_dbg(DRM_UT_KMS, ...). Though DRM needs consistent categories across all modules, thats not generally needed; modules X and Y could define FOO differently (ie a different NAME => class_id mapping), changes are made according to each module's private class-map. No callsites are actually selected by this patch, since none are class'd yet. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Link: https://lore.kernel.org/r/20220912052852.1123868-3-jim.cromie@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-13drm/i915: Add lmem_bar_size modparamPriyanka Dandamudi
For testing purposes, support forcing the lmem_bar_size through a new modparam. In CI we only have a limited number of configurations for DG2, but we still need to be reasonably sure we get a usable device (also verifying we report the correct values for things like probed_cpu_visible_size etc) with all the potential lmem_bar sizes that we might expect see in the wild. v2: Update commit message and a minor modification.(Matt) v3: Optimised lmem bar size code and modified code to resize bar maximum upto lmem_size instead of maximum supported size.(Nirmoy) v4: Optimised lmem bar size code.(Nirmoy) Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Nirmoy Das <nirmoy.das@intel.com> Reviewed-by: Nirmoy Das <nirmoy.das@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220713130209.2573233-3-priyanka.dandamudi@intel.com
2022-04-21Merge drm/drm-next into drm-intel-gt-nextRodrigo Vivi
In order to get the GSC Support merged on drm-intel-gt-next in a clean fashion we needed this ATS-M patch to avoid conflict in i915_pci.c: commit 412c942bdfae ("drm/i915/ats-m: add ATS-M platform info") -- Fixing a silent conflict on drivers/gpu/drm/i915/gt/intel_gt_gmch.c: - if (!intel_vtd_active(i915)) + if (!i915_vtd_active(i915)) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2022-04-11Merge drm/drm-next into drm-intel-nextJani Nikula
Sync up with v5.18-rc1, in particular to get 5e3094cfd9fb ("drm/i915/xehpsdv: Add has_flat_ccs to device info"). Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2022-03-28drm/i915: add lmem_size modparamCQ Tang
lmem_size is used to limit the amount of lmem for testing purposes. Default is to use hardware available lmem size. Signed-off-by: CQ Tang <cq.tang@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Nirmoy Das <nirmoy.das@linux.intel.com> Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220324143123.348590-2-matthew.auld@intel.com
2022-03-03drm/i915/display: Allow users to disable PSR2José Roberto de Souza
Some users are suffering with PSR2 issues that are under debug or issues that were root caused to panel firmware bugs, to make life of those users easier here adding a option to disable PSR2 with kernel parameters so they can still benefit from PSR1 power savings. Using the same enable_psr that is current used to turn the whole feature on or off and allowing user to select up to what PSR version it should enable. Right now users only set this parameter to 0 when they want to disable PSR1 and PSR2 or don't add it at all leaving it to per-chip behavior so it should not cause a bad impact on users. v2: - changing enable_psr values (Ville and Rodrigo) Link: https://gitlab.freedesktop.org/drm/intel/-/issues/4951 Cc: Jouni Högander <jouni.hogander@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220224202523.993560-1-jose.souza@intel.com
2022-03-02drm/i915: Use str_yes_no()Lucas De Marchi
Remove the local yesno() implementation and adopt the str_yes_no() from linux/string_helpers.h. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220225234631.3725943-1-lucas.demarchi@intel.com
2022-02-18drm/i915: Kill the fake lmem supportLucas De Marchi
This was useful for early development of lmem, but it's not used anymore, so remove it. v2: Remove unneeded fields from struct intel_memory_region Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220217175634.4128754-1-lucas.demarchi@intel.com
2021-12-14drm/i915: Test all device memory on probingChris Wilson
This extends the previous sanitychecking of device memory to read/write all the memory on the device during the device probe, ala memtest86, as an optional module parameter: i915.memtest=1. This is not expected to be fast, but a reasonably thorough verfification that the device memory is accessible and doesn't return bit errors. v2: Rebased. Suggested-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Ramalingam C <ramalingam.c@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211208153404.27546-4-ramalingam.c@intel.com
2021-06-09drm/i915/uc: Use platform specific defaults for GuC/HuC enablingJohn Harrison
The meaning of 'default' for the enable_guc module parameter has been updated to accurately reflect what is supported on current platforms. So start using the defaults instead of forcing everything off. Although, note that right now, the default is for everything to be off anyway. So this is not a change for current platforms. Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210603164812.19045-2-matthew.brost@intel.com
2021-03-26drm/i915: Allow configuring default request expiry via modparamTvrtko Ursulin
Module parameter is added (request_timeout_ms) to allow configuring the default request/fence expiry. Default value is inherited from CONFIG_DRM_I915_REQUEST_TIMEOUT. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210324121335.2307063-8-tvrtko.ursulin@linux.intel.com
2021-01-19drm/i915/dp: Allow forcing specific interfaces through enable_dpcd_backlightLyude Paul
Since we now support controlling panel backlights through DPCD using both the standard VESA interface, and Intel's proprietary HDR backlight interface, we should allow the user to be able to explicitly choose between one or the other in the event that we're wrong about panels reliably reporting support for the Intel HDR interface. So, this commit adds support for this by introducing two new enable_dpcd_backlight options: 2 which forces i915 to only probe for the VESA interface, and 3 which forces i915 to only probe for the Intel backlight interface (might be useful if we find panels in the wild that report the VESA interface in their VBT, but actually only support the Intel backlight interface). v3: * Rebase Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Cc: thaytan@noraisin.net Cc: Vasily Khoruzhick <anarsoul@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210114221709.2261452-5-lyude@redhat.com
2020-08-17drm/i915: Initial implementation of PSR2 selective fetchJosé Roberto de Souza
All GEN12 platforms supports PSR2 selective fetch but not all GEN12 platforms supports PSR2 hardware tracking(aka RKL). This feature consists in software programming registers with the damaged area of each plane this way hardware will only fetch from memory those areas and sent the PSR2 selective update blocks to panel, saving even more power. But as initial step it is only enabling the full frame fetch at every flip, the actual selective fetch part will come in a future patch. Also this is only handling the page flip side, it is still completely missing frontbuffer modifications, that is why the enable_psr2_sel_fetch parameter was added. v3: - calling intel_psr2_sel_fetch_update() during the atomic check phase (Ville) BSpec: 55229 Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200810174144.76761-1-jose.souza@intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2020-06-30drm/i915: fix a couple of spelling mistakes in kernel parameter help textColin Ian King
There are a couple of spelling mistakes in kernel parameter help text, namely "helpfull" and "paramters". Fix them. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200616082129.65517-1-colin.king@canonical.com
2020-06-04drm/i915: Add psr_safest_paramsJosé Roberto de Souza
This parameter is meant to be used when PSR issues are found as some issues in the past was due wrong values set in VBT so this would be a quick and easy way to ask users or for us to check if the issue is due VBT values. Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200520212756.354623-1-jose.souza@intel.com
2020-06-04drm/i915/params: fix i915.reset module param typeJani Nikula
The reset member in i915_params was previously changed to unsigned, but this failed to change the actual module parameter. Fixes: aae970d8454b ("drm/i915: Mark i915.reset as unsigned") Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200602151126.25626-1-jani.nikula@intel.com
2020-06-02drm/i915/params: prevent changing module params runtimeJani Nikula
Only support runtime changes through the debugfs. i915.verbose_state_checks remains an exception, and is not exposed via debugfs. This depends on IGT having been updated to use the debugfs for modifying the parameters. Cc: Juha-Pekka Heikkilä <juha-pekka.heikkila@intel.com> Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200601215510.18379-3-jani.nikula@intel.com
2020-06-02drm/i915/params: fix i915.fake_lmem_start module param sysfs permissionsJani Nikula
fake_lmem_start does not need to be mutable via module param sysfs. It's only used during driver probe. Fixes: 1629224324b6 ("drm/i915/lmem: add the fake lmem region") Cc: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200601215510.18379-2-jani.nikula@intel.com
2020-01-27drm/i915: Remove 'prefault_disable' modparamChris Wilson
The 'prefault_disable' modparam was used by IGT to prevent a few prefaulting operations to make fault handling under struct_mutex more prominent. With the removal of struct_mutex, this is not as important any more and we have almost completely stopped using the parameter. The remaining use in execbuf is now immaterial and can be dropped without affecting coverage. We must re-address the idea of fault injection though. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Antonio Argenziano <antonio.argenziano@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200124230656.687503-1-chris@chris-wilson.co.uk
2020-01-22drm/i915: drop alpha_support for good in favour of force_probeJani Nikula
It's been a long enough transition period since the DRM_I915_FORCE_PROBE config and i915.force_probe module parameter were introduced in commit 7ef5ef5cdead ("drm/i915: add force_probe module parameter to replace alpha_support"). Remove alpha support. Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Tomi Sarvela <tomi.p.sarvela@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200121103020.26494-1-jani.nikula@intel.com
2020-01-17drm/i915: Auto detect DPCD backlight support by defaultLyude Paul
Turns out we actually already have some companies, such as Lenovo, shipping machines with AMOLED screens that don't allow controlling the backlight through the usual PWM interface and only allow controlling it through the standard EDP DPCD interface. One example of one of these laptops is the X1 Extreme 2nd Generation. Since we've got systems that need this turned on by default now to have backlight controls working out of the box, let's start auto-detecting it for systems by default based on what the VBT tells us. We do this by changing the default value for the enable_dpcd_backlight module param from 0 to -1. Tested-by: AceLan Kao <acelan.kao@canonical.com> Tested-by: Perry Yuan <pyuan@redhat.com> Signed-off-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200116211623.53799-6-lyude@redhat.com
2020-01-15drm/i915/params: add i915 parameters to debugfsJani Nikula
Add a debugfs subdirectory i915_params with all the i915 module parameters. This is a first step, with lots of boilerplate, and not much benefit yet. This will result in a new device specific debugfs directory at /sys/kernel/debug/dri/<N>/i915_params duplicating the module specific sysfs directory at /sys/module/i915/parameters/. Going forward, all users of the parameters should use the debugfs, with the module parameters being phased out. Add debugfs permissions to I915_PARAMS_FOR_EACH(). This duplicates the mode with module parameter sysfs, but the goal is to make the module parameters read-only initial values for device specific parameters. 0 mode will bypass debugfs creation. Use it for verbose_state_checks which will need special attention in follow-up work. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/600101c8433e7caf9303663fc85a9972fa1f05e7.1575560168.git.jani.nikula@intel.com
2019-10-31drm/i915/lmem: add the fake lmem regionMatthew Auld
Intended for upstream testing so that we can still exercise the LMEM plumbing and !i915_ggtt_has_aperture paths. Smoke tested on Skull Canyon device. This works by allocating an intel_memory_region for a reserved portion of system memory, which we treat like LMEM. For the LMEMBAR we steal the aperture and 1:1 it map to the stolen region. To enable simply set the i915 modparam fake_lmem_start= on the kernel cmdline with the start of reserved region(see memmap=). The size of the region we can use is determined by the size of the mappable aperture, so the size of reserved region should be >= mappable_end. For now we only enable for the selftests. Depends on CONFIG_DRM_I915_UNSTABLE being enabled. eg. memmap=2G$16G i915.fake_lmem_start=0x400000000 v2: make fake_lmem_start an i915 modparam Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20191030173320.8850-1-matthew.auld@intel.com
2019-10-29drm/i915: Rename "inject_load_failure" module parameterJanusz Krzysztofik
Commit f2db53f14d3d ("drm/i915: Replace "_load" with "_probe" consequently") deliberately left the name of the module parameter unchanged as that would require a corresponding change on IGT size. Now as the IGT side change has been submitted, complete the switch to the "probe" nomenclature. Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com> Cc: Michał Wajdeczko <michal.wajdeczko@intel.com> Cc: Michał Winiarski <michal.winiarski@intel.com> Cc: Piotr Piórkowski <piotr.piorkowski@intel.com> Cc: Tomasz Lis <tomasz.lis@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20191029102036.6326-3-janusz.krzysztofik@linux.intel.com
2019-10-08drm/i915/tgl: Add DC3CO mask to allowed_dc_mask and gen9_dc_maskAnshuman Gupta
Enable dc3co state in enable_dc module param and add dc3co enable mask to allowed_dc_mask and gen9_dc_mask. v1: Adding enable_dc=3,4 options to enable DC3CO with DC5 and DC6 independently. [Animesh] v2: Using a switch statement for cleaner code. [Animesh] Cc: Jani Nikula <jani.nikula@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Animesh Manna <animesh.manna@intel.com> Reviewed-by: Animesh Manna <animesh.manna@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191003081738.22101-3-anshuman.gupta@intel.com
2019-07-19Revert "drm/i915: Update description of i915.enable_guc modparam"Tvrtko Ursulin
This reverts commit 0629d4da1f159778063767fb0ac1c951034c5477. If GuC firmware is not present on the filesystem driver crashes the machine on boot. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Fixes: 0629d4da1f15 ("drm/i915: Update description of i915.enable_guc modparam") Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20190719094845.6242-3-tvrtko.ursulin@linux.intel.com
2019-07-17drm/i915: Update description of i915.enable_guc modparamTvrtko Ursulin
Commit f774f0964919 ("drm/i915/guc: Turn on GuC/HuC auto mode") changed the default from 0 to -1 but forgot to update the description. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Fixes: f774f0964919 ("drm/i915/guc: Turn on GuC/HuC auto mode") Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190717104418.23809-1-tvrtko.ursulin@linux.intel.com
2019-06-26drm/i915: Check backlight type while doing eDP backlight initializaitonLee Shawn C
If LFP backlight type setting from VBT was "VESA eDP AUX Interface". Driver should check panel capability and try to initialize aux backlight. No matter i915_modparams.enable_dpcd_backlight was enabled or not. v2: access dev_priv->vbt.backlight.type directly and remove unused function. v3: 1. Modify i915.enable_dpcd_backlight type from bool to int and give default value as 0 (disable). 2. Add a judgement to check LFP backlight type was aux interface or not. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Jose Roberto de Souza <jose.souza@intel.com> Cc: Cooper Chiou <cooper.chiou@intel.com> Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1561045456-12171-1-git-send-email-shawn.c.lee@intel.com
2019-05-31drm/i915: add force_probe module parameter to replace alpha_supportJani Nikula
The i915.alpha_support module parameter has caused some confusion along the way. Add new i915.force_probe parameter to specify PCI IDs of devices to probe, when the devices are recognized but not automatically probed by the driver. The name is intended to reflect what the parameter effectively does, avoiding any overloaded semantics of "alpha" and "support". The parameter supports "" to disable, "<pci-id>,[<pci-id>,...]" to enable force probe for one or more devices, and "*" to enable force probe for all known devices. Also add new CONFIG_DRM_I915_FORCE_PROBE config option to replace the DRM_I915_ALPHA_SUPPORT option. This defaults to "*" if DRM_I915_ALPHA_SUPPORT=y. Instead of replacing i915.alpha_support immediately, let the two coexist for a while, with a deprecation message, for a transition period. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190506134801.28751-1-jani.nikula@intel.com
2019-01-29drm/i915: Enable fastboot by default on Skylake and newerHans de Goede
We really want to have fastboot enabled by default to avoid an ugly modeset during boot. Rather then enabling it everywhere, lets start with enabling it on Skylake and newer. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190124130114.3967-1-maarten.lankhorst@linux.intel.com
2018-12-31drm/i915/params: set i915.enable_hangcheck permissions to 0600Jani Nikula
i915.enable_hangcheck has been an outlier since its introduction in commit 3e0dc6b01f53 ("drm/i915: hangcheck disable parameter") with 0644 permissions, while all the rest are either 0400 or 0600. Follow suit with 0600. IGT never reads the value, so there should be no impact. Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/5c8f7d1a1654436d38919b7419a209c129db8ad0.1545920737.git.jani.nikula@intel.com
2018-12-31drm/i915: add a helper to free the members of i915_paramsJani Nikula
Abstract the one user in anticipation of more. Set the dangling pointers to NULL while at it. Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8637d1e5049dc003718772f19d664aeaf9540856.1545920737.git.jani.nikula@intel.com
2018-12-31drm/i915: add a helper to make a copy of i915_paramsJani Nikula
Abstract the one user in anticipation of more. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/c6a94b4da8dc723df025b1f602fe46d76d00d53f.1545920737.git.jani.nikula@intel.com
2018-11-19drm/i915: Hide enable_gvt modparam when not compiled inJoonas Lahtinen
Hide the enable_gvt modparam in the default scenario where support has not been compiled in. Cc: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: Zhi Wang <zhi.a.wang@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181116144447.7836-1-joonas.lahtinen@linux.intel.com
2018-10-17drm/i915: Ensure _print_param() builds with ClangJani Nikula
When building the kernel with Clang with defconfig and CONFIG_64BIT disabled, vmlinux fails to link because of the BUILD_BUG in _print_param. ld: drivers/gpu/drm/i915/i915_params.o: in function `i915_params_dump': i915_params.c:(.text+0x56): undefined reference to `__compiletime_assert_191' This function is semantically invalid unless the code is first inlined then constant folded, which doesn't work for Clang because semantic analysis happens before optimization/inlining. [The above written by Nathan Chancellor <natechancellor@gmail.com>] Use WARN_ONCE() instead of BUILD_BUG() to avoid the problem. The WARN_ONCE() should get optimized away unless there's a type that's not handled by _print_param(). References: https://github.com/ClangBuiltLinux/linux/issues/191 References: http://mid.mail-archive.com/20181009171401.14980-1-natechancellor@gmail.com Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by: Nick Desaulniers <ndesaulniers@google.com> Reported-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181016122938.18757-1-jani.nikula@intel.com
2018-09-27drm/i915: Remove i915.enable_ppgtt overrideChris Wilson
Now that we are confident in providing full-ppgtt where supported, remove the ability to override the context isolation. v2: Remove faked aliasing-ppgtt for testing as it no longer is accepted. v3: s/USES/HAS/ to match usage and reject attempts to load the module on old GVT-g setups that do not provide support for full-ppgtt. v4: Insulate ABI ppGTT values from our internal enum (later plans involve moving ppGTT depth out of the enum, thus potentially breaking ABI unless we document the current values). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Zhi Wang <zhi.a.wang@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180926201222.5643-1-chris@chris-wilson.co.uk
2018-07-19drm/i915: Remove intel_panel_detect()Ville Syrjälä
With neither LVDS or eDP no longer using intel_panel_detect() we can kill it, and the accompanying modparam. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180717174216.22252-3-ville.syrjala@linux.intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-07-12drm/i915/psr: Remove few mod parameters option.Rodrigo Vivi
Reduce the module parameter to enable or disable. The link stand by vs full link off was used only once. And it was actually masking another bug fixed by commit '84bb2916a683 ("drm/i915/psr: Check for SET_POWER_CAPABLE bit at PSR init time.")' So, let's remove these options for now. End goal is to fully remove the mod param, moving it to a debugfs interface in upcoming patches. Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Tarun Vyas <tarun.vyas@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180712052715.8177-1-rodrigo.vivi@intel.com
2018-05-17drm/i915: Remove unused enable_cmd_parser modparamChris Wilson
The command parser is feature complete, stable and required by userspace. In commit 41736a8e3331 ("drm/i915: Use the precomputed value for whether to enable command parsing") I accidentally removed control from the modparam, and as no one has complained, remove the left over modparam completely! References: 41736a8e3331 ("drm/i915: Use the precomputed value for whether to enable command parsing") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180517150727.10431-1-chris@chris-wilson.co.uk
2018-05-02drm/i915: add support for specifying DMC firmware override by module paramJani Nikula
Use i915.dmc_firmware_path to override default firmware for the platform and bypassing version checks. v2: add missing param struct member declaration (David) Tested-by: David Weinehall <david.weinehall@linux.intel.com> Reviewed-by: David Weinehall <david.weinehall@linux.intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: David Weinehall <david.weinehall@linux.intel.com> Acked-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180424122016.2416-1-jani.nikula@intel.com
2018-02-02drm/i915: Enable inject_load_failure only in DEBUG configMichal Wajdeczko
We're using i915_inject_load_failure() to inject dummy faults during driver load, but since this is debug utility we shouldn't expose it in default config as it consumes both code and data. add/remove: 0/1 grow/shrink: 0/2 up/down: 0/-302 (-302) Function old new delta __i915_inject_load_failure 61 - -61 i915_gem_init 1331 1268 -63 i915_driver_load 5923 5745 -178 Total: Before=1177454, After=1177152, chg -0.03% add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-4 (-4) Data old new delta i915_load_fail_count 4 - -4 Total: Before=56762, After=56758, chg -0.01% add/remove: 4/8 grow/shrink: 0/1 up/down: 245/-591 (-346) RO Data old new delta __param_str_inject_load_failure 20 - -20 __UNIQUE_ID_inject_load_failuretype200 34 - -34 __param_inject_load_failure 40 - -40 __func__ 4998 4896 -102 __UNIQUE_ID_inject_load_failure201 150 - -150 Total: Before=119095, After=118749, chg -0.29% Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180201173248.3912-1-michal.wajdeczko@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2018-01-18drm/i915/guc: Redefine guc_log_level modparam valuesMichal Wajdeczko
We used value -1 to indicate "disabled" and values 0..3 to indicate "enabled", but most of our other modparams are using -1 for "auto" mode and 0 for "disable". For consistency let's change our log level values to: -1: auto (depends on platform and Kconfig.debug settings) 0: disabled 1: enabled (severity level 0 = min) 2: enabled (severity level 1) 3: enabled (severity level 2) 4: enabled (severity level 3 = max) v2: fix commit message (Sagar) display sanitized modparam value (Sagar) unify sanitize messages (Sagar/Michal) Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180111152441.21676-1-michal.wajdeczko@intel.com Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-29 22:06:13 +0000