drm/xe/guc: Introduce Relay Communication for SR-IOV

There are scenarios where SR-IOV Virtual Function (VF) driver will
need to get additional data that is not available over VF MMIO BAR
nor could b

drm/xe/guc: Introduce Relay Communication for SR-IOV

There are scenarios where SR-IOV Virtual Function (VF) driver will
need to get additional data that is not available over VF MMIO BAR
nor could be queried from the GuC firmware and must be obtained
from the Physical Function (PF) driver.

To allow such communication between VF and PF drivers, GuC supports
set of H2G and G2H actions which allows relaying embedded messages,
that are otherwise opaque for the GuC.

To allow use of this communication mechanism, provide functions for
sending requests and handling replies and placeholder where we will
put handlers for incoming requests.

Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://lore.kernel.org/r/20240104222031.277-8-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

show more ...

drm/xe/kunit: Define helper functions to allocate fake xe device

There will be more KUnit tests added that will require fake device.
Define generic helper functions to avoid code duplications.

Cc:

drm/xe/kunit: Define helper functions to allocate fake xe device

There will be more KUnit tests added that will require fake device.
Define generic helper functions to avoid code duplications.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20231218190629.502-6-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

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drm/xe: Introduce GuC Doorbells Manager

The GFX doorbell solution provides a mechanism for submission of
workload to the graphics hardware by a ring3 application without
the penalty of ring transiti

drm/xe: Introduce GuC Doorbells Manager

The GFX doorbell solution provides a mechanism for submission of
workload to the graphics hardware by a ring3 application without
the penalty of ring transition for each workload submission.

This feature is not currently used by the Linux drivers, but in
SR-IOV mode the doorbells are treated as shared resource and the
PF driver must be able to provision exclusive range of doorbells
IDs across all enabled VFs.

Introduce simple GuC doorbell ID manager that will be used by the
PF driver for VFs provisioning and can later be used by submission
code once we are ready to switch from H2G based notifications to
doorbells mechanism.

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Piotr Piórkowski <piotr.piorkowski@intel.com>
Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Link: https://lore.kernel.org/r/20231218190629.502-4-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

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drm/xe/vf: Introduce Memory Based Interrupts Handler

The register based interrupts infrastructure does not scale
efficiently to allow delivering interrupts to a large number
of virtual machines. Mem

drm/xe/vf: Introduce Memory Based Interrupts Handler

The register based interrupts infrastructure does not scale
efficiently to allow delivering interrupts to a large number
of virtual machines. Memory based interrupt reporting provides
an efficient and scalable infrastructure.

Define handler to read and dispatch memory based interrupts.
We will use this handler in upcoming patch.

Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231214185955.1791-8-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>

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Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge branch 'linus' into x86/mm, to refresh the branch and pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

No conflicts or adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Merge branch 'master' into mm-hotfixes-stable

Merge branch 'master' into mm-hotfixes-stable

Merge v6.8-rc1 into drm-misc-fixes

Let's kickstart the 6.8 fix cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'drm-next-2024-01-19' of git://anongit.freedesktop.org/drm/drm

Pull more drm fixes from Dave Airlie:
"This is mostly amdgpu and xe fixes, with an amdkfd and nouveau fix
thrown in.

Th

Merge tag 'drm-next-2024-01-19' of git://anongit.freedesktop.org/drm/drm

Pull more drm fixes from Dave Airlie:
"This is mostly amdgpu and xe fixes, with an amdkfd and nouveau fix
thrown in.

The amdgpu ones are just the usual couple of weeks of fixes. The xe
ones are bunch of cleanups for the new xe driver, the fix you put in
on the merge commit and the kconfig fix that was hiding the problem
from me.

amdgpu:
- DSC fixes
- DC resource pool fixes
- OTG fix
- DML2 fixes
- Aux fix
- GFX10 RLC firmware handling fix
- Revert a broken workaround for SMU 13.0.2
- DC writeback fix
- Enable gfxoff when ROCm apps are active on gfx11 with the proper FW
version

amdkfd:
- Fix dma-buf exports using GEM handles

nouveau:
- fix a unneeded WARN_ON triggering

xe:
- Fix for definition of wakeref_t
- Fix for an error code aliasing
- Fix for VM_UNBIND_ALL in the case there are no bound VMAs
- Fixes for a number of __iomem address space mismatches reported by
sparse
- Fixes for the assignment of exec_queue priority
- A Fix for skip_guc_pc not taking effect
- Workaround for a build problem on GCC 11
- A couple of fixes for error paths
- Fix a Flat CCS compression metadata copy issue
- Fix a misplace array bounds checking
- Don't have display support depend on EXPERT (as discussed on IRC)"

* tag 'drm-next-2024-01-19' of git://anongit.freedesktop.org/drm/drm: (71 commits)
nouveau/vmm: don't set addr on the fail path to avoid warning
drm/amdgpu: Enable GFXOFF for Compute on GFX11
drm/amd/display: Drop 'acrtc' and add 'new_crtc_state' NULL check for writeback requests.
drm/amdgpu: revert "Adjust removal control flow for smu v13_0_2"
drm/amdkfd: init drm_client with funcs hook
drm/amd/display: Fix a switch statement in populate_dml_output_cfg_from_stream_state()
drm/amdgpu: Fix the null pointer when load rlc firmware
drm/amd/display: Align the returned error code with legacy DP
drm/amd/display: Fix DML2 watermark calculation
drm/amd/display: Clear OPTC mem select on disable
drm/amd/display: Port DENTIST hang and TDR fixes to OTG disable W/A
drm/amd/display: Add logging resource checks
drm/amd/display: Init link enc resources in dc_state only if res_pool presents
drm/amd/display: Fix late derefrence 'dsc' check in 'link_set_dsc_pps_packet()'
drm/amd/display: Avoid enum conversion warning
drm/amd/pm: Fix smuv13.0.6 current clock reporting
drm/amd/pm: Add error log for smu v13.0.6 reset
drm/amdkfd: Fix 'node' NULL check in 'svm_range_get_range_boundaries()'
drm/amdgpu: drop exp hw support check for GC 9.4.3
drm/amdgpu: move debug options init prior to amdgpu device init
...

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Merge tag 'drm-xe-next-fixes-2024-01-16' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Driver Changes:
- Fix for definition of wakeref_t
- Fix for an error code aliasing
- Fix for VM

Merge tag 'drm-xe-next-fixes-2024-01-16' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Driver Changes:
- Fix for definition of wakeref_t
- Fix for an error code aliasing
- Fix for VM_UNBIND_ALL in the case there are no bound VMAs
- Fixes for a number of __iomem address space mismatches reported by sparse
- Fixes for the assignment of exec_queue priority
- A Fix for skip_guc_pc not taking effect
- Workaround for a build problem on GCC 11
- A couple of fixes for error paths
- Fix a Flat CCS compression metadata copy issue
- Fix a misplace array bounds checking
- Don't have display support depend on EXPERT (as discussed on IRC)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240116102204.106520-1-thomas.hellstrom@linux.intel.com

show more ...

drm/xe: Fix build bug for GCC 11

Building drivers/gpu/drm/xe/xe_gt_pagefault.c with GCC 11 results
in the following build errors:

./include/linux/fortify-string.h:57:33: error: writing 16 bytes int

drm/xe: Fix build bug for GCC 11

Building drivers/gpu/drm/xe/xe_gt_pagefault.c with GCC 11 results
in the following build errors:

./include/linux/fortify-string.h:57:33: error: writing 16 bytes into a region of size 0 [-Werror=stringop-overflow=]
57 | #define __underlying_memcpy __builtin_memcpy
| ^
./include/linux/fortify-string.h:644:9: note: in expansion of macro ‘__underlying_memcpy’
644 | __underlying_##op(p, q, __fortify_size); \
| ^~~~~~~~~~~~~
./include/linux/fortify-string.h:689:26: note: in expansion of macro ‘__fortify_memcpy_chk’
689 | #define memcpy(p, q, s) __fortify_memcpy_chk(p, q, s, \
| ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/xe/xe_gt_pagefault.c:340:17: note: in expansion of macro ‘memcpy’
340 | memcpy(pf_queue->data + pf_queue->tail, msg, len * sizeof(u32));
| ^~~~~~
In file included from drivers/gpu/drm/xe/xe_device_types.h:17,
from drivers/gpu/drm/xe/xe_vm_types.h:16,
from drivers/gpu/drm/xe/xe_bo.h:13,
from drivers/gpu/drm/xe/xe_gt_pagefault.c:16:
drivers/gpu/drm/xe/xe_gt_types.h:102:25: note: at offset [1144, 265324] into destination object ‘tile’ of size 8
102 | struct xe_tile *tile;
| ^~~~

Fix these by removing -Wstringop-overflow from drm/xe builds.

Closes: https://lore.kernel.org/all/45ad1d0f-a10f-483e-848a-76a30252edbe@paulmck-laptop/
Fixes: 7a8bc11782d3 ("drm/xe: Enable W=1 warnings by default")
Suggested-by: Stephen Rothwell <sfr@rothwell.id.au>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
[ This particular warning is broken on GCC11. In future changes it will
be moved to the normal C flags in the top level Makefile (out of
Makefile.extrawarn), but accounting for the compiler support. Just
remove it out of xe's forced extra warnings for now ]
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit a109d19992294736abd4f4232ea639e03eb1f9e7)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

show more ...

Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"This contains two major new drivers:

- imagination is a first driver for Imagination

Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"This contains two major new drivers:

- imagination is a first driver for Imagination Technologies devices,
it only covers very specific devices, but there is hope to grow it

- xe is a reboot of the i915 GPU (shares display) side using a more
upstream focused development model, and trying to maximise code
sharing. It's not enabled for any hw by default, and will hopefully
get switched on for Intel's Lunarlake.

This also drops a bunch of the old UMS ioctls. It's been dead long
enough.

amdgpu has a bunch of new color management code that is being used in
the Steam Deck.

amdgpu also has a new ACPI WBRF interaction to help avoid radio
interference.

Otherwise it's the usual lots of changes in lots of places.

Detailed summary:

new drivers:
- imagination - new driver for Imagination Technologies GPU
- xe - new driver for Intel GPUs using core drm concepts

core:
- add CLOSE_FB ioctl
- remove old UMS ioctls
- increase max objects to accomodate AMD color mgmt

encoder:
- create per-encoder debugfs directory

edid:
- split out drm_eld
- SAD helpers
- drop edid_firmware module parameter

format-helper:
- cache format conversion buffers

sched:
- move from kthread to workqueue
- rename some internals
- implement dynamic job-flow control

gpuvm:
- provide more features to handle GEM objects

client:
- don't acquire module reference

displayport:
- add mst path property documentation

fdinfo:
- alignment fix

dma-buf:
- add fence timestamp helper
- add fence deadline support

bridge:
- transparent aux-bridge for DP/USB-C
- lt8912b: add suspend/resume support and power regulator support

panel:
- edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
- chromebook panel support
- elida-kd35t133: rework pm
- powkiddy RK2023 panel
- himax-hx8394: drop prepare/unprepare and shutdown logic
- BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
- Evervision VGG644804, SDC ATNA45AF01
- nv3052c: register docs, init sequence fixes, fascontek FS035VG158
- st7701: Anbernic RG-ARC support
- r63353 panel controller
- Ilitek ILI9805 panel controller
- AUO G156HAN04.0

simplefb:
- support memory regions
- support power domains

amdgpu:
- add new 64-bit sequence number infrastructure
- add AMD specific color management
- ACPI WBRF support for RF interference handling
- GPUVM updates
- RAS updates
- DCN 3.5 updates
- Rework PCIe link speed handling
- Document GPU reset types
- DMUB fixes
- eDP fixes
- NBIO 7.9/7.11 updates
- SubVP updates
- XGMI PCIe state dumping for aqua vanjaram
- GFX11 golden register updates
- enable tunnelling on high pri compute

amdkfd:
- Migrate TLB flushing logic to amdgpu
- Trap handler fixes
- Fix restore workers handling on suspend/resume
- Fix possible memory leak in pqm_uninit()
- support import/export of dma-bufs using GEM handles

radeon:
- fix possible overflows in command buffer checking
- check for errors in ring_lock

i915:
- reorg display code for reuse in xe driver
- fdinfo memory stats printing
- DP MST bandwidth mgmt improvements
- DP panel replay enabling
- MTL C20 phy state verification
- MTL DP DSC fractional bpp support
- Audio fastset support
- use dma_fence interfaces instead of i915_sw_fence
- Separate gem and display code
- AUX register macro refactoring
- Separate display module/device parameters
- Move display capabilities debugfs under display
- Makefile cleanups
- Register cleanups
- Move display lock inits under display/
- VLV/CHV DPIO PHY register and interface refactoring
- DSI VBT sequence refactoring
- C10/C20 PHY PLL hardware readout
- DPLL code cleanups
- Cleanup PXP plane protection checks
- Improve display debug msgs
- PSR selective fetch fixes/improvements
- DP MST fixes
- Xe2LPD FBC restrictions removed
- DGFX uses direct VBT pin mapping
- more MTL WAs
- fix MTL eDP bug
- eliminate use of kmap_atomic

habanalabs:
- sysfs entry to identify a device minor id with debugfs path
- sysfs entry to expose device module id
- add signed device info retrieval through INFO ioctl
- add Gaudi2C device support
- pcie reset prepare/done hooks

msm:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
- Kconfig fix for QMP dependency
- use managed allocators
- DPU: SDM670, SM8650 support
- DPU: Enable SmartDMA on SM8350 and SM8450
- DP: enable runtime PM support
- GPU: add metadata UAPI
- GPU: move devcoredumps to GPU device
- GPU: convert to drm_exec

ivpu:
- update FW API
- new debugfs file
- a new NOP job submission test mode
- improve suspend/resume
- PM improvements
- MMU PT optimizations
- firmware profile frequency support
- support for uncached buffers
- switch to gem shmem helpers
- replace kthread with threaded irqs

rockchip:
- rk3066_hdmi: convert to atomic
- vop2: support nv20 and nv30
- rk3588 support

mediatek:
- use devm_platform_ioremap_resource
- stop using iommu_present
- MT8188 VDOSYS1 display support

panfrost:
- PM improvements
- improve interrupt handling as poweroff

qaic:
- allow to run with single MSI
- support host/device time sync
- switch to persistent DRM devices

exynos:
- fix potential error pointer dereference
- fix wrong error checking
- add missing call to drm_atomic_helper_shutdown

omapdrm:
- dma-fence lockdep annotation fix

tidss:
- dma-fence lockdep annotation fix
- support for AM62A7

v3d:
- BCM2712 - rpi5 support
- fdinfo + gputop support
- uapi for CPU job handling

virtio-gpu:
- add context debug name"

* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
drm/amd/display: Allow z8/z10 from driver
drm/amd/display: fix bandwidth validation failure on DCN 2.1
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
drm/amd/display: Fix power_helpers.c codestyle
drm/amd/display: Fix hdcp_log.h codestyle
drm/amd/display: Fix hdcp2_execution.c codestyle
drm/amd/display: Fix hdcp_psp.h codestyle
drm/amd/display: Fix freesync.c codestyle
drm/amd/display: Fix hdcp_psp.c codestyle
drm/amd/display: Fix hdcp1_execution.c codestyle
drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
...

show more ...

Merge tag 'drm-xe-next-2023-12-21-pr1-1' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Introduce a new DRM driver for Intel GPUs

Xe, is a new driver for Intel GPUs that supports bot

Merge tag 'drm-xe-next-2023-12-21-pr1-1' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

Introduce a new DRM driver for Intel GPUs

Xe, is a new driver for Intel GPUs that supports both integrated and
discrete platforms. The experimental support starts with Tiger Lake.
i915 will continue be the main production driver for the platforms
up to Meteor Lake and Alchemist. Then the goal is to make this Intel
Xe driver the primary driver for Lunar Lake and newer platforms.

It uses most, if not all, of the key drm concepts, in special: TTM,
drm-scheduler, drm-exec, drm-gpuvm/gpuva and others.

Signed-off-by: Dave Airlie <airlied@redhat.com>

[airlied: add an extra X86 check, fix a typo, fix drm_exec_init interface
change].

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZYSwLgXZUZ57qGPQ@intel.com

show more ...

drm/xe/pmu: Remove PMU from Xe till uapi is finalized

PMU uapi is likely to change in the future. Till the uapi is finalized,
remove PMU from Xe. PMU can be re-added after uapi is finalized.

v2: In

drm/xe/pmu: Remove PMU from Xe till uapi is finalized

PMU uapi is likely to change in the future. Till the uapi is finalized,
remove PMU from Xe. PMU can be re-added after uapi is finalized.

v2: Include xe_drm.h in xe/tests/xe_dma_buf.c (Francois)

Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Acked-by: Aravind Iddamsetty <aravind.iddamsetty@linux.intel.com>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Acked-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Mateusz Naklicki <mateusz.naklicki@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe: Enable W=1 warnings by default

Like done in commit 2250c7ead8ad ("drm/i915: enable W=1 warnings by default")
for i915, enable W=1 warnings by default in xe.

Reviewed-by: Rodrigo Vivi <rodri

drm/xe: Enable W=1 warnings by default

Like done in commit 2250c7ead8ad ("drm/i915: enable W=1 warnings by default")
for i915, enable W=1 warnings by default in xe.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...

drm/xe: Add frequency throttle reasons sysfs attributes

Add throttle reasons sysfs attributes under a separate directory.

/device/tile<n>/gt<n>/freq0/throttle
|- reason_pl1
|- reason_pl2
|

drm/xe: Add frequency throttle reasons sysfs attributes

Add throttle reasons sysfs attributes under a separate directory.

/device/tile<n>/gt<n>/freq0/throttle
|- reason_pl1
|- reason_pl2
|- reason_pl4
|- reason_prochot
|- reason_ratl
|- reason_vr_tdc
|- reason_vr_thermalert
|- status

v2: Remove unnecessary headers and clean-up action (Riana)

Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Reviewed-by: Riana Tauro <riana.tauro@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe: Create a xe_gt_freq component for raw management and sysfs

Goals of this new xe_gt_freq component:
1. Detach sysfs controls and raw freq management from GuC SLPC.
2. Create a directory that

drm/xe: Create a xe_gt_freq component for raw management and sysfs

Goals of this new xe_gt_freq component:
1. Detach sysfs controls and raw freq management from GuC SLPC.
2. Create a directory that could later be aligned with devfreq.
3. Encapsulate all the freq control in a single directory. Although
we only have one freq domain per GT, already start with a numbered
freq0 directory so it could be expanded in the future if multiple
domains or PLL are needed.

Note: Although in the goal #1, the raw freq management control is
mentioned, this patch only starts by the sysfs control. The RP freq
configuration and init freq selection are still under the guc_pc, but
should be moved to this component in a follow-up patch.

v2: - Add /tile# to the doc and remove unnecessary kobject_put (Riana)
- s/ssize_t/int on some ret variables (Vinay)

Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Cc: Riana Tauro <riana.tauro@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe/pf: Introduce Local Memory Translation Table

The Local Memory Translation Table (LMTT) provides additional
abstraction for Virtual Functions (VF) accessing device VRAM.

This code is based on

drm/xe/pf: Introduce Local Memory Translation Table

The Local Memory Translation Table (LMTT) provides additional
abstraction for Virtual Functions (VF) accessing device VRAM.

This code is based on prior work of Michal Winiarski.

In this patch we focus only on LMTT initialization. Remaining LMTT
functions will be used once we add a VF provisioning to the PF.

Bspec: 44117, 52404, 59314
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://lore.kernel.org/r/20231128151507.1015-4-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

show more ...

drm/xe: Enable Fixed CCS mode setting

Disable dynamic HW load balancing of compute resource assignment
to engines and instead enabled fixed mode of mapping compute
resources to engines on all platfo

drm/xe: Enable Fixed CCS mode setting

Disable dynamic HW load balancing of compute resource assignment
to engines and instead enabled fixed mode of mapping compute
resources to engines on all platforms with more than one compute
engine.

By default enable only one CCS engine with all compute slices
assigned to it. This is the desired configuration for common
workloads.

PVC platform supports only the fixed CCS mode (workaround 16016805146).

v2: Rebase, make it platform agnostic
v3: Minor code refactoring

Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe/dsb: DSB implementation for xe

Add xe specific DSB buffer handling methods.

v1: Initial version.
v2: Add null check after dynamic memory allocation of vma. [Uma]

Reviewed-by: Uma Shankar <u

drm/xe/dsb: DSB implementation for xe

Add xe specific DSB buffer handling methods.

v1: Initial version.
v2: Add null check after dynamic memory allocation of vma. [Uma]

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe: Rename xe_gt_idle_sysfs to xe_gt_idle

Prep this file to contain C6 toggling as well instead
of just sysfs related stuff.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Vi

drm/xe: Rename xe_gt_idle_sysfs to xe_gt_idle

Prep this file to contain C6 toggling as well instead
of just sysfs related stuff.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe/gsc: Query GSC compatibility version

The version is obtained via a dedicated MKHI GSC HECI command.
The compatibility version is what we want to match against for the GSC,
so we need to call

drm/xe/gsc: Query GSC compatibility version

The version is obtained via a dedicated MKHI GSC HECI command.
The compatibility version is what we want to match against for the GSC,
so we need to call the FW version checker after obtaining the version.

Since this is the first time we send a GSC HECI command via the GSCCS,
this patch also introduces common infrastructure to send such commands
to the GSC. Communication with the GSC FW is done via input/output
buffers, whose addresses are provided via a GSCCS command. The buffers
contain a generic header and a client-specific packet (e.g. PXP, HDCP);
the clients don't care about the header format and/or the GSCCS command
in the batch, they only care about their client-specific header. This
patch therefore introduces helpers that allow the callers to
automatically fill in the input header, submit the GSCCS job and decode
the output header, to make it so that the caller only needs to worry about
their client-specific input and output messages.

v3: squash of 2 separate patches ahead of merge, so that the common
functions and their first user are added at the same time

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Alan Previn <alan.previn.teres.alexis@intel.com>
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.Com> #v1
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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drm/xe/gsc: Implement WA 14015076503

When the GSC FW is loaded, we need to inform it when a GSCCS reset is
coming and then wait 200ms for it to get ready to process the reset.

v2: move WA code to G

drm/xe/gsc: Implement WA 14015076503

When the GSC FW is loaded, we need to inform it when a GSCCS reset is
coming and then wait 200ms for it to get ready to process the reset.

v2: move WA code to GSC file, use variable in Makefile (John)

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: John Harrison <john.c.harrison@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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