kernel/drivers/gpu/drm/xe/xe_tile.c, branch master

drm/xe: Cleanup unused header includes

2026-01-15T15:05:04Z

clangd reports many "unused header" warnings throughout the Xe driver. Start working to clean this up by removing unnecessary includes in our .c files and/or replacing them with explicit includes of other headers that were previously being included indirectly. By far the most common offender here was unnecessary inclusion of xe_gt.h. That likely originates from the early days of xe.ko when xe_mmio did not exist and all register accesses, including those unrelated to GTs, were done with GT functions. There's still a lot of additional #include cleanup that can be done in the headers themselves; that will come as a followup series. v2: - Squash the 79-patch series down to a single patch. (MattB) Reviewed-by: Matthew Brost Link: https://patch.msgid.link/20260115032803.4067824-2-matthew.d.roper@intel.com Signed-off-by: Matt Roper

drm/xe: Use the drm_pagemap cache and shrinker

2025-12-23T08:58:33Z

Define a struct xe_pagemap that embeds all pagemap-related data used by xekmd, and use the drm_pagemap cache- and shrinker to manage lifetime. Signed-off-by: Thomas Hellström Reviewed-by: Matthew Brost Link: https://patch.msgid.link/20251219113320.183860-9-thomas.hellstrom@linux.intel.com

drm/xe: Suballocate BO for page reclaim

2025-12-13T00:59:09Z

Page reclamation feature needs the PRL to be suballocated into a GGTT-mapped BO. On allocation failure, fallback to default tlb invalidation with full PPC flush. PRL's BO allocation is managed in separate pool to ensure 4K alignment for proper GGTT address. With BO, pass into TLB invalidation backend and modify fence to accomadate accordingly. v2: - Removed page reclaim related variables from TLB fence. (Matthew B) - Allocate PRL bo size to num_entries. (Matthew B) - Move PRL bo allocation to tlb_inval run_job. (Matthew B) v5: - Use xe_page_reclaim_list_valid. (Matthew B) Signed-off-by: Brian Nguyen Suggested-by: Matthew Brost Reviewed-by: Matthew Brost Signed-off-by: Matthew Brost Link: https://patch.msgid.link/20251212213225.3564537-18-brian3.nguyen@intel.com

drm/xe: Move primary GT allocation from xe_tile_init_early to xe_tile_init

2025-10-14T14:44:57Z

During the early days of the Xe driver, there were cases where we accessed some fields in the primary GT's xe_gt structure before the GT itself was formally initialized; this required that the structure itself be allocated during xe_tile_init_early(). A lot of refactoring of the device probe has happened since that time and there's no longer a need to allocate the primary GT early. Move the allocation into xe_info_init() where GT initialization happens and where we're doing the allocation of the media GT. v2: - Only make this change after a separate patch to perform VF GMD_ID lookup with a dummy GT instead of xe_root_mmio_gt(). Cc: Michal Wajdeczko Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20251013200944.2499947-33-matthew.d.roper@intel.com Signed-off-by: Matt Roper

drm/xe: Sort include files alphabetically.

2025-10-13T14:18:20Z

Sort the include lines alphabetically, no impact on code behavior. Signed-off-by: Arun Abhishek Chowhan Reviewed-by: Nitin Gote Link: https://lore.kernel.org/r/20251013095914.3742505-1-arun.abhishek.chowhan@intel.com Signed-off-by: Lucas De Marchi

drm/xe: Add initial support for separate kernel VRAM region on the tile

2025-10-06T06:33:46Z

So far, kernel and userspace allocations have shared the same VRAM region. However, in some scenarios, it may be necessary to reserve a separate VRAM area exclusively for kernel allocations. Let's add preliminary support for such a configuration. v2: - replaced for_each_bo_flag_vram with the improved for_each_set_bo_vram_flag helper (Matthew) - moved the VRAM flag iteration macro definition into xe_bo.c (Matthew) - drop unused bo_flgas from bo_vram_flags_to_vram_placement (Matthew) - use hweight32 helper in __xe_bo_fixed_placement for readability (Matthew) v3: remove unnecessary VRAM fixup id Signed-off-by: Piotr Piórkowski Cc: Matthew Auld Reviewed-by: Matthew Auld Signed-off-by: Michal Wajdeczko Link: https://lore.kernel.org/r/20251003162619.1984236-2-piotr.piorkowski@intel.com

drm/xe: Fix an IS_ERR() vs NULL bug in xe_tile_alloc_vram()

2025-07-21T14:38:05Z

The xe_vram_region_alloc() function returns NULL on error. It never returns error pointers. Update the error checking to match. Fixes: 4b0a5f5ce784 ("drm/xe: Unify the initialization of VRAM regions") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/5449065e-9758-4711-b706-78771c0753c4@sabinyo.mountain Reviewed-by: Rodrigo Vivi Signed-off-by: Rodrigo Vivi

drm/xe: Unify the initialization of VRAM regions

2025-07-16T19:15:00Z

Currently in the drivers we have defined VRAM regions per device and per tile. Initialization of these regions is done in two completely different ways. To simplify the logic of the code and make it easier to add new regions in the future, let's unify the way we initialize VRAM regions. v2: - fix doc comments in struct xe_vram_region - remove unnecessary includes (Jani) v3: - move code from xe_vram_init_regions_managers to xe_tile_init_noalloc (Matthew) - replace ioremap_wc to devm_ioremap_wc for mapping VRAM BAR (Matthew) - Replace the tile id parameter with vram region in the xe_pf_begin function. v4: - remove tile back pointer from struct xe_vram_region - add new back pointers: xe and migarte to xe_vram_region Signed-off-by: Piotr Piórkowski Cc: Stuart Summers Cc: Matthew Auld Cc: Jani Nikula Reviewed-by: Matthew Auld # rev3 Acked-by: Matthew Brost Link: https://lore.kernel.org/r/20250714184818.89201-6-piotr.piorkowski@intel.com Signed-off-by: Lucas De Marchi

drm/xe: Split xe_migrate allocation from initialization

2025-07-16T19:12:49Z

Currently, xe_migrate_init handled both allocation and initialization, Lets moves allocation to xe_tile_alloc via a new xe_migrate_alloc function, and keep initialization in xe_migrate_init. This will allow the migration pointers to be passed to other structures before full initialization. Also replaces devm_kzalloc with drmm_kzalloc for better DRM-managed memory. Signed-off-by: Piotr Piórkowski Reviewed-by: Matthew Brost Link: https://lore.kernel.org/r/20250714184818.89201-5-piotr.piorkowski@intel.com Signed-off-by: Lucas De Marchi

drm/xe: Move struct xe_vram_region to a dedicated header

2025-07-16T19:12:36Z

Let's move the xe_vram_region structure to a new header dedicated to VRAM to improve modularity and avoid unnecessary dependencies when only VRAM-related structures are needed. v2: Fix build if CONFIG_DRM_XE_DEVMEM_MIRROR is enabled v3: Fix build if CONFIG_DRM_XE_DISPLAY is enabled v4: Move helper to get tile dpagemap to xe_svm.c Signed-off-by: Piotr Piórkowski Suggested-by: Jani Nikula Reviewed-by: Satyanarayana K V P # rev3 Acked-by: Matthew Brost Link: https://lore.kernel.org/r/20250714184818.89201-4-piotr.piorkowski@intel.com Signed-off-by: Lucas De Marchi