- 21 Dec, 2023 40 commits
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Jouni Högander authored
We don't need i915_gem_object_flush_if_display on Xe side. Add empty define to tackle compilation errors with display code where it's used. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jouni Högander authored
Add empty definitions for i915_active_init/fini to kill ifdefs from frontbuffer tracking code. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jouni Högander authored
Xe is not carrying frontbuffer pointer in xe_bo. Define it's getter as NULL. Setter simply returns pointer which was provided as a parameter. v3: Do not take any references v2: Handle xe_bo_put as well Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jouni Högander authored
Add helper macro to kill couple of #ifdefs Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jouni Högander authored
Add empty definition for struct i915_active to kill ifdefs from frontbuffer tracking code. Signed-off-by: Jouni Högander <jouni.hogander@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Francois Dugast authored
This fixes the build error below with CONFIG_ACPI_SLEEP=n: drivers/gpu/drm/xe/xe_display.c:334:23: error: implicit declaration of function ‘acpi_target_system_state’; did you mean ‘acpi_get_system_info’? [-Werror=implicit-function-declaration] 334 | bool s2idle = acpi_target_system_state() < ACPI_STATE_S3; Signed-off-by: Francois Dugast <francois.dugast@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Koby Elbaz authored
Upon device probe failure, rolling back the initialization should be done in reversed order. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Ohad Sharabi <osharabi@habana.ai> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matthew Auld authored
The KMD needs to access the clear-color value stored in the buffer via the CPU. On small-bar systems reject any buffers that are potentially not CPU accessible. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Filip Hazubski <filip.hazubski@intel.com> Cc: Carl Zhang <carl.zhang@intel.com> Cc: Effie Yu <effie.yu@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> [ Split display-related changes from small-bar support ] Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Lucas De Marchi authored
Add a "private:" comment to the part of the struct that is not expected to be documented, the one with display-related fields. This silence the following warnings: $ find drivers/gpu/drm/xe -name '*.[ch]' -not -path 'drivers/gpu/drm/xe/display/*' | xargs ./scripts/kernel-doc -Werror -none drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'display' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'pch_type' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'pch_id' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'wm_lv_0_adjust_needed' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'num_channels' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'symmetric_memory' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'type' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'num_qgv_points' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'num_psf_gv_points' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'dram_info' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'runtime_pm' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'sb_lock' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'skl_preferred_vco_freq' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'max_dotclk_freq' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'hti_state' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'snps_phy_failed_calibration' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'modeset_restore_state' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'global_obj_list' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'de_irq_mask' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'display_irqs_enabled' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'enabled_irq_mask' not described in 'xe_device' drivers/gpu/drm/xe/xe_device_types.h:316: warning: Function parameter or member 'params' not described in 'xe_device' 22 warnings as Errors Fixes: 44e69495 ("drm/xe/display: Implement display support") Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://lore.kernel.org/r/20230315004902.2622613-1-lucas.demarchi@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Maarten Lankhorst authored
We accidentally always pass true as s2idle argument, instead of calculating it in the same way as i915. Suspend modes were removed to achieve compatibility with i915, but accidentally left in the source code. While at it, fix all other cases too, s2idle will go into a D1 state and setting a lower power state should be handled by PCI core. Maybe my laptop stops draining so much power during suspend now? I can only hope.. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Maarten Lankhorst authored
As for display, the intent is to share the display code with the i915 driver so that there is maximum reuse there. We do this by recompiling i915/display code twice. Now that i915 has been adapted to support the Xe build, we can add the xe/display support. This initial work is a collaboration of many people and unfortunately this squashed patch won't fully honor the proper credits. But let's try to add a few from the squashed patches: Co-developed-by: Matthew Brost <matthew.brost@intel.com> Co-developed-by: Jani Nikula <jani.nikula@intel.com> Co-developed-by: Lucas De Marchi <lucas.demarchi@intel.com> Co-developed-by: Matt Roper <matthew.d.roper@intel.com> Co-developed-by: Mauro Carvalho Chehab <mchehab@kernel.org> Co-developed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Co-developed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Matthew Brost authored
To appease lockdep, use a pool of ordered wq for GuC submission rather tha leaving the ordered wq allocation to the drm sched. Without this change eventually lockdep runs out of hash entries (MAX_LOCKDEP_CHAINS is exceeded) as each user allocated exec queue adds more hash table entries to lockdep. A pool old of 256 ordered wq should be enough to have similar behavior with and without lockdep enabled. Signed-off-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Vinay Belgaumkar authored
Starting GT freq is usually RPn. Raising freq to RP0 will help speed up GuC load times. As an example, this data was collected on DG2- GuC Load time @RPn ~ 41 ms GuC Load time @RP0 ~ 11 ms v2: Raise GT freq before hwconfig init. This will speed up both HuC and GuC loads. Address review comments (Rodrigo). Also add a small usleep after requesting frequency which gives pcode some time to react. v3: Address checkpatch issue Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> 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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Lucas De Marchi authored
Due to the current integration between "live" xe kunit tests and kunit, it's not possible to have a build with the following combination: CONFIG_DRM_XE=y CONFIG_KUNIT=m ... even if kconfig doesn't block it. The reason for the failure is that some compilation units are pulled in xe.ko: drivers/gpu/drm/xe/xe_bo.c:#include "tests/xe_bo.c" drivers/gpu/drm/xe/xe_dma_buf.c:#include "tests/xe_dma_buf.c" drivers/gpu/drm/xe/xe_migrate.c:#include "tests/xe_migrate.c" drivers/gpu/drm/xe/xe_pci.c:#include "tests/xe_pci.c" Those files shouldn't use symbols from kunit, which should be reserved to the tests/*_test.c files. Detangling this dependency doesn't seem very straightforward, so fix the immediate issue instructing kconfig to block the problematic configuration. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20231109175132.3084142-3-lucas.demarchi@intel.comSigned-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matt Roper authored
EXECLIST_CONTROL ($enginebase + 0x550) is a write-only register; we shouldn't be trying to read or report it as part of the device error state. Bspec: 45910, 60335 Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://lore.kernel.org/r/20231109194606.1835284-2-matthew.d.roper@intel.comSigned-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Pallavi Mishra authored
Pass a valid vm to xe_migrate_update_pgtables. Resolves NPD crash seen with igt@xe_live_ktest@migrate Reviewed-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Pallavi Mishra <pallavi.mishra@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Alexander Usyskin authored
Configure and enable PVC HECI GSC support. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Haridhar Kalvala authored
Enable Force Dispatch Ends Collection for DG2. BSpec: 46001 Signed-off-by: Haridhar Kalvala <haridhar.kalvala@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20231108073351.3998413-1-haridhar.kalvala@intel.comSigned-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Jonathan Cavitt authored
The spec for this register, like many other interrupt related ones, asks software to write back '1' to clear the serviced bits. Let's respect the spec. v2: - Update commit message - Add missing CC Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com> CC: Daniele Spurio Ceraolo <daniele.ceraolospurio@intel.com> CC: Lucas De Marchi <lucas.demarchi@intel.com> CC: Rodrigo Vivi <rodrigo.vivi@intel.com> CC: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Koby Elbaz authored
If lmem (VRAM) is not fully initialized, the punit will power down the GT, which will prevent register access from the driver side. That code moved into a corresponding function (xe_verify_lmem_ready) to make the code clearer. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://lore.kernel.org/r/20231029175326.626745-1-kelbaz@habana.aiSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
In fault mode, page table binding is deferred until fault handler. Thus vma->tile_present will be unset unless the VMA is accessed by GPU. During a later unbind, the logic doesn't account for the fact that local fence variable will be NULL in this case, leading to pass NULL into dma_fence_add_callback() and causing few WARN_ONs to print to console. The fix is already present in the code, just hoist the fence variable computation to be done earlier. Resolves warnings seen with igt@xe_exec_fault_mode@once-invalid-fault Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Gustavo Sousa authored
This workaround applies to all steppings of Xe_LPM+. Implement the KMD part. Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20231106210655.175109-3-gustavo.sousa@intel.comSigned-off-by: Gustavo Sousa <gustavo.sousa@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Thomas Hellström authored
The "GPL-2.0" SPDX license identifier is deprecated. Update the code to use "GPL-2.0-only" instead. Choose this identifier over "GPL-2.0-or-later" since it's the most restrictive of the two and it's not fully clear that "GPL-2.0" also allows "GPL-2.0-or-later". Cc: Francois Dugast <francois.dugast@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231107082440.7568-1-thomas.hellstrom@linux.intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
When processing G2H messages for pagefault or access counters, we queue a work item and call queue_work(). This fails if the worker thread is already queued to run. The expectation is that the worker function will do more than process a single item and return. It needs to either process all pending items or requeue itself if items are pending. But requeuing will add latency and potential context switch can occur. We don't want to add unnecessary latency and so the worker should process as many faults as it can within a reasonable duration of time. We also do not want to hog the cpu core, so here we execute in a loop and requeue if still running after more than 20 ms. This seems reasonable framework and easy to tune this futher if needed. This resolves issues seen with several igt@xe_exec_fault_mode subtests where the GPU will hang when KMD ignores a pending pagefault. v2: requeue the worker instead of having an internal processing loop. v3: implement hybrid model of v1 and v2 now, run for 20 msec before we will requeue if still running v4: only requeue in worker if queue is non-empty (Matt B) Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Stuart Summers <stuart.summers@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Andrzej Hajda authored
Driver initiated function-reset (FLR) is the highest level of reset that we can trigger from within the driver. In contrast to PCI FLR it doesn't require re-enumeration of PCI BAR. It can be useful in case GT fails to reset. It is also the only way to trigger GSC reset from the driver and can be used in future addition of GSC support. v2: - use regs from xe_regs.h - move the flag to xe.mmio - call flr only on root gt - use BIOS protection check - copy/paste comments from i915 v3: - flr code moved to xe_device.c v4: - needs_flr_on_fini moved to xe_device Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Carlos Santa authored
This error gets printed inside a sandbox with warnings turned on. /mnt/host/source/src/third_party/kernel/v5.15/drivers/ gpu/drm/xe/xe_gt_idle_sysfs.c:87:26: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security] return sysfs_emit(buff, gtidle->name); ^~~~~~~~~~~~ /mnt/host/source/src/third_party/kernel/v5.15/drivers/ gpu/drm/xe/xe_gt_idle_sysfs.c:87:26: note: treat the string as an argument to avoid this return sysfs_emit(buff, gtidle->name); ^ "%s", 1 error generated. CC: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Carlos Santa <carlos.santa@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matt Roper authored
This workaround is primarily implemented by the BIOS. However if the BIOS applies the workaround it will reserve a small piece of our DSM (which should be at the top, right below the WOPCM); we just need to keep that region reserved so that nothing else attempts to re-use it. v2 (Gustavo): - Check for NULL media_gt - Mask bits [5:0] to avoid potential issues in future platforms Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com> Link: https://lore.kernel.org/r/20231102124855.1940491-1-lucas.demarchi@intel.comSigned-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Badal Nilawar authored
For mtl and above 16.67 Mhz is the scale factor to calculate rpX frequencies. v2: Fix review comment (Ashutosh) Signed-off-by: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231101163212.1629685-1-badal.nilawar@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matt Roper authored
The LNCFCMOCS registers no longer exist on Xe2 so there's no need to attempt to program them. Since GLOB_MOCS is the only set of MOCS registers now, it's expected to be used for all platforms (both igpu and dgpu) going forward, so adjust the MOCS programming flags accordingly. v2: - Fix typo (global mocs condition is >=, not >) Bspec: 71582 Reviewed-by: Pallavi Mishra <pallavi.mishra@intel.com> Link: https://lore.kernel.org/r/20231031140536.303746-2-matthew.d.roper@intel.comSigned-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
The access counters worker function is fixed to advance the head pointer when dequeuing from the acc_queue. This now matches the similar logic in get_pagefault(). Signed-off-by: Bruce Chang <yu.bruce.chang@intel.com> Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Stuart Summers <stuart.summers@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matthew Brost authored
If a rebind is skipped the tile_present mask needs to be updated for the newly created vma to properly reflect the state of the vma. Reported-by: <christoph.manszewski@intel.com> Signed-off-by: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Pallavi Mishra authored
Print CTB info during TLB invalidation timeout event. Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Pallavi Mishra <pallavi.mishra@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
Currently mem_type_to_tile() is being used to access the tile's underlying tile.mem.vram. However, this function makes the assumption that a mem_type will only ever map to a single tile. Now that the TTM vram manager contains a pointer to the memory_region, make use of this in xe_bo.c. As such, introduce a helper function res_to_mem_region() to get the ttm_vram_mgr->vram from the BO's resource, and use this to replace usage of mem_type_to_tile(). xe_tile is still needed to choose the migration context, so this part is unchanged. But as this is only renaming usage, function is renamed now to mem_type_to_migrate(). Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
Unused and would like to remove the memtype_to_tile() which it calls. Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Brian Welty authored
Replace the xe_ttm_vram_mgr.tile pointer with a xe_mem_region pointer instead. The former is currently unused. TTM VRAM regions are exposing device vram and is better to store a pointer directly to the xe_mem_region instead of the tile. This allows to cleanup unnecessary usage of xe_tile from xe_bo.c in later patch. Signed-off-by: Brian Welty <brian.welty@intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Badal Nilawar authored
Expose power1_max_interval, that is the tau corresponding to PL1, as a custom hwmon attribute. Some bit manipulation is needed because of the format of PKG_PWR_LIM_1_TIME in PACKAGE_RAPL_LIMIT register (1.x * power(2,y)) v2: Get rpm wake ref while accessing power1_max_interval v3: %s/hwmon/xe_hwmon/ v4: - As power1_max_interval is rw attr take lock in read function as well - Refine comment about val to fix point conversion (Andi) - Update kernel version and date in doc v5: Fix review comments (Anshuman) Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Badal Nilawar <badal.nilawar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030115618.1382200-4-badal.nilawar@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Badal Nilawar authored
Take hwmon_lock while accessing hwmon rw attributes. For readonly attributes its not required to take lock as reads are protected by sysfs layer and therefore sequential. Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Cc: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030115618.1382200-3-badal.nilawar@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Badal Nilawar authored
Add kernel doc and refactor some of the hwmon functions, there is no functionality change. Cc: Anshuman Gupta <anshuman.gupta@intel.com> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Badal Nilawar <badal.nilawar@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030115618.1382200-2-badal.nilawar@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matthew Auld authored
With things like pipelined evictions, VRAM pages can be marked as free and yet still have some active kernel fences, with the idea that the next caller to allocate the memory will respect them. However it looks like we are missing synchronisation for KMD internal buffers, like page-tables, lrc etc. For userspace objects we should already have the required synchronisation for CPU access via the fault handler, and likewise for GPU access when vm_binding them. To fix this synchronise against any kernel fences for all KMD objects at creation. This should resolve some severe corruption seen during evictions. v2 (Matt B): - Revamp the comment explaining this. Also mention why USAGE_KERNEL is correct here. v3 (Thomas): - Make sure to use ctx.interruptible for the wait. Testcase: igt@xe-evict-ccs Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/853 Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/855Reported-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Tested-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Matthew Auld authored
There could be active fences already in the dma-resv for the object prior to clearing. Make sure to input them as dependencies for the clear job. v2 (Matt B): - We can use USAGE_KERNEL here, since it's only the move fences we care about here. Also add a comment. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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