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path: root/drivers/gpu/drm/i915/gt/intel_gt.h
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2021-07-22drm/i915/guc: Update intel_gt_wait_for_idle to work with GuCMatthew Brost
When running the GuC the GPU can't be considered idle if the GuC still has contexts pinned. As such, a call has been added in intel_gt_wait_for_idle to idle the UC and in turn the GuC by waiting for the number of unpinned contexts to go to zero. v2: rtimeout -> remaining_timeout v3: Drop unnecessary includes, guc_submission_busy_loop -> guc_submission_send_busy_loop, drop negatie timeout trick, move a refactor of guc_context_unpin to earlier path (John H) v4: Add stddef.h back into intel_gt_requests.h, sort circuit idle function if not in GuC submission mode Cc: John Harrison <john.c.harrison@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210721215101.139794-16-matthew.brost@intel.com
2021-06-17drm/i915: Add GT support for multiple types of multicast steeringMatt Roper
Although most of our multicast registers are replicated per-subslice, we also have a small number of multicast registers that are replicated per-l3 bank instead. For both types of multicast registers we need to make sure we steer reads of these registers to a valid instance. Ideally we'd like to find a specific instance ID that would steer reads of either type of multicast register to a valid instance (i.e., not fused off and not powered down), but sometimes the combination of part-specific fusing and the additional restrictions imposed by Render Power Gating make it impossible to find any overlap between the set of valid subslices and valid l3 banks. This problem will become even more noticeable on our upcoming platforms since they will be adding additional types of multicast registers with new types of replication and rules for finding valid instances for reads. To handle this we'll continue to pick a suitable subslice instance at driver startup and program this as the default (sliceid,subsliceid) setting in the steering control register (0xFDC). In cases where we need to read another type of multicast GT register, but the default subslice steering would not correspond to a valid instance, we'll explicitly re-steer the single read to a valid value, perform the read, and then reset the steering to it's "subslice" default. This patch adds the general functionality to prepare for this explicit steering of other multicast register types. We'll plug L3 bank steering into this in the next patch, and then add additional types of multicast registers when the support for our next upcoming platform arrives. v2: - Use entry->end==0 as table terminator. (Rodrigo) - Grab forcewake in wa_list_verify() now that we're using accessors that assume forcewake is already held. v3: - Fix loop condition when iterating over steering range tables. (Rodrigo) Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210617211425.1943662-3-matthew.d.roper@intel.com
2021-04-08Merge tag 'drm-intel-gt-next-2021-04-06' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next Driver Changes: - Prepare for local/device memory support on DG1 by starting to use it for kernel internal allocations: context, ring and engine scratch (Matt A, CQ, Abdiel, Imre) - Sandybridge fix to avoid hard hang on ring resume (Chris) - Limit imported dma-buf size to int32 (Matt A) - Double check heartbeat timeout before resetting (Chris) - Use new tasklet API for execution list (Emil) - Fix SPDX checkpats warnings (Chris) - Fixes for various checkpatch warnings (Chris) - Selftest improvements (Chris) - Move the defer_request waiter active assertion to correct spot (Chris) - Make local-memory probing a GT operation (Matt, Tvrtko) - Protect against request freeing during cancellation on wedging (Chris) - Retire unexpected starting state error dumping (Chris) - Distinction of memory regions in debugging (Zbigniew) - Always flush the submission queue on checking for idle (Chris) - Consolidate 2big error check to helper (Matt) - Decrease number of subplatform bits (Tvrtko) - Remove unused internal request priority levels (Chris) - Document the unused internal header bits in buddy allocator (Matt) - Cleanup the region class/instance encoding (Matt) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YGxksaZGXHnFxlwg@jlahtine-mobl.ger.corp.intel.com
2021-03-26drm/i915: Request watchdog infrastructureTvrtko Ursulin
Prepares the plumbing for setting request/fence expiration time. All code is put in place but is never activated due yet missing ability to actually configure the timer. Outline of the basic operation: A timer is started when request is ready for execution. If the request completes (retires) before the timer fires, timer is cancelled and nothing further happens. If the timer fires request is added to a lockless list and worker queued. Purpose of this is twofold: a) It allows request cancellation from a more friendly context and b) coalesces multiple expirations into a single event of consuming the list. Worker locklessly consumes the list of expired requests and cancels them all using previous added i915_request_cancel(). Associated timeout value is stored in rq->context.watchdog.timeout_us. v2: * Log expiration. v3: * Include more information about user timeline in the log message. v4: * Remove obsolete comment and fix formatting. (Matt) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210324121335.2307063-6-tvrtko.ursulin@linux.intel.com
2021-03-24drm/i915: make local-memory probing a GT operationMatthew Auld
Device local memory is very much a GT thing, therefore it should be the responsibility of the GT to setup the device local memory region. Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Matthew Auld <matthew.auld@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/20210127131417.393872-1-matthew.auld@intel.com [danvet: Rebase conflict.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-07-08drm/i915: Introduce gt_init_mmioDaniele Ceraolo Spurio
We already call 2 gt-related init_mmio functions in driver_mmio_probe and a 3rd one will be added by a follow-up patch, so pre-emptively introduce a gt_init_mmio function to group them. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Andi Shyti <andi.shyti@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200708003952.21831-6-daniele.ceraolospurio@intel.com
2020-07-08drm/i915: Move the engine mask to intel_gt_infoDaniele Ceraolo Spurio
Since the engines belong to the GT, move the runtime-updated list of available engines to the intel_gt struct. The original mask has been renamed to indicate it contains the maximum engine list that can be found on a matching device. In preparation for other info being moved to the gt in follow up patches (sseu), introduce an intel_gt_info structure to group all gt-related runtime info. v2: s/max_engine_mask/platform_engine_mask (tvrtko), fix selftest Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Andi Shyti <andi.shyti@intel.com> Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> #v1 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200708003952.21831-5-daniele.ceraolospurio@intel.com
2020-07-06drm/i915: Reboot CI if we get wedged during driver initMichał Winiarski
Getting wedged device on driver init is pretty much unrecoverable. Since we're running various scenarios that may potentially hit this in CI (module reload / selftests / hotunplug), and if it happens, it means that we can't trust any subsequent CI results, we should just apply the taint to let the CI know that it should reboot (CI checks taint between test runs). v2: Comment that WEDGED_ON_INIT is non-recoverable, distinguish WEDGED_ON_INIT from WEDGED_ON_FINI (Chris) v3: Appease checkpatch, fixup search-replace logic expression mindbomb in assert (Chris) Signed-off-by: Michał Winiarski <michal.winiarski@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Petri Latvala <petri.latvala@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/20200706144107.204821-1-michal@hardline.pl
2020-01-16drm/i915/gt: Drop rogue space in the middle of GT_TRACEChris Wilson
Remove the double space that crept into the fmt stringification. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200116125749.2786743-1-chris@chris-wilson.co.uk
2019-12-26drm/i915/gt: Ignore incomplete engines after init failureChris Wilson
Do not expose incomplete engines to the user after we fail to setup the GT. Fixes: e6ba76480299 ("drm/i915: Remove i915->kernel_context") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Andi Shyti <andi.shyti@intel.com> Acked-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191226191237.2654510-1-chris@chris-wilson.co.uk
2019-12-16drm/i915: Fix typecheck macro in GT_TRACEVenkata Sandeep Dhanalakota
typecheck() macro creates an huge stack size causing issues with static analysis with coverity, addressing this with creating a local pointer. Fixes: 639f2f24895f ("drm/i915: Introduce new macros for tracing") Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@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/20191216185332.83289-1-venkata.s.dhanalakota@intel.com
2019-12-13drm/i915: Introduce new macros for tracingVenkata Sandeep Dhanalakota
New macros ENGINE_TRACE(), CE_TRACE(), RQ_TRACE() and GT_TRACE() are introduce to tag device name and engine name with contexts and requests tracing in i915. Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@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/20191213155152.69182-2-venkata.s.dhanalakota@intel.com
2019-11-01drm/i915/gt: Call intel_gt_sanitize() directlyChris Wilson
Assume all responsibility for operating on the HW to sanitize the GT state upon load/resume in intel_gt_sanitize() itself. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191101141009.15581-1-chris@chris-wilson.co.uk
2019-10-23drm/i915/gt: Replace hangcheck by heartbeatsChris Wilson
Replace sampling the engine state every so often with a periodic heartbeat request to measure the health of an engine. This is coupled with the forced-preemption to allow long running requests to survive so long as they do not block other users. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Jon Bloomfield <jon.bloomfield@intel.com> Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191023133108.21401-5-chris@chris-wilson.co.uk
2019-09-11drm/i915: Move GT init to intel_gt.cTvrtko Ursulin
Code in i915_gem_init_hw is all about GT init so move it to intel_gt.c renaming to intel_gt_init_hw. Existing intel_gt_init_hw is renamed to intel_gt_init_hw_early since it is currently called from driver probe. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Andi Shyti <andi.shyti@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190910143823.10686-2-tvrtko.ursulin@linux.intel.com
2019-09-06drm/i915: Hook up GT power managementAndi Shyti
Refactor the GT power management interface to work through the GT now that it is under the control of gt/ Based on a patch by Chris Wilson. Signed-off-by: Andi Shyti <andi.shyti@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/20190905111403.10071-1-andi.shyti@intel.com
2019-08-01drm/i915/gt: Move gt_cleanup_early out of gem_cleanup_earlyDaniele Ceraolo Spurio
We don't call the init_early function from within the gem code, so we shouldn't do it for the cleanup either. v2: while at it, s/gt_cleanup_early/gt_late_release (Chris) v3: s/late_release/driver_late_release/ (Chris) Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> #v1 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/20190801005709.34092-1-daniele.ceraolospurio@intel.com
2019-07-13drm/i915/uc: prefer intel_gt over i915 in GuC/HuC pathsDaniele Ceraolo Spurio
With our HW interface logic moving from i915 to gt and with GuC and HuC being part of the gt HW, it makes sense to use the intel_gt structure instead of i915 as our reference object in GuC/HuC paths. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190713100016.8026-9-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2019-07-13drm/i915/uc: Move intel functions to intel_ucDaniele Ceraolo Spurio
All the intel_uc_* can now be moved to work on the intel_uc structure for better encapsulation of uc-related actions. Note: I've introduced uc_to_gt instead of uc_to_i915 because the aim is to move everything to be gt-focused in the medium term, so we would've had to replace it soon anyway. Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Acked-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190713100016.8026-8-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2019-07-12drm/i915/gt: Use intel_gt as the primary object for handling resetsChris Wilson
Having taken the first step in encapsulating the functionality by moving the related files under gt/, the next step is to start encapsulating by passing around the relevant structs rather than the global drm_i915_private. In this step, we pass intel_gt to intel_reset.c Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190712192953.9187-1-chris@chris-wilson.co.uk
2019-07-09drm/i915: enumerate scratch fieldsLionel Landwerlin
We have a bunch of offsets in the scratch buffer. As we're about to add some more, let's group all of the offsets in a common location. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@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/20190709123351.5645-6-lionel.g.landwerlin@intel.com
2019-06-21drm/i915: Eliminate dual personality of i915_scratch_offsetTvrtko Ursulin
Scratch vma lives under gt but the API used to work on i915. Make this consistent by renaming the function to intel_gt_scratch_offset and make it take struct intel_gt. v2: * Move to intel_gt. (Chris) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-33-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Store ggtt pointer in intel_gtTvrtko Ursulin
This will become useful in the following patch. v2: * Assign the pointer through a helper on the top level to work around the layering violation. (Chris) v3: * Handle selftests. v4: * Move call to intel_gt_init_hw into mock_init_ggtt. (Chris) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-28-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Move i915_gem_chipset_flush to intel_gtTvrtko Ursulin
This aligns better with the rest of restructuring. v2: * Move call out of line. (Chris) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-24-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Convert i915_gem_flush_ggtt_writes to intel_gtTvrtko Ursulin
Having introduced struct intel_gt (named the anonymous structure in i915) we can start using it to compartmentalize our code better. It makes more sense logically to have the code internally like this and it will also help with future split between gt and display in i915. v2: * Keep ggtt flush before fb obj flush. (Chris) v3: * Fix refactoring fail. * Always flush ggtt writes. (Chris) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-23-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Make i915_check_and_clear_faults take intel_gtTvrtko Ursulin
Continuing the conversion and elimination of implicit dev_priv. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-6-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Store some backpointers in struct intel_gtTvrtko Ursulin
We need an easy way to get back to i915 and uncore. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-4-tvrtko.ursulin@linux.intel.com
2019-06-21drm/i915: Move intel_gt initialization to a separate fileTvrtko Ursulin
As it will grow in a following patch make a new home for it. v2: * Convert mock_gem_device as well. (Chris) v3: * Rename to intel_gt_init_early and move call site to i915_drv.c. (Chris) v4: * Adjust SPDX tags. * No need to gt/ path when including intel_gt_types.h. (Chris) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190621070811.7006-3-tvrtko.ursulin@linux.intel.com