linux/drivers/gpu/drm/ttm, branch master

drm/ttm/tests: Remove checks from ttm_pool_free_no_dma_alloc

2026-04-09T20:54:49Z

On !x86, the pool type is never initialised, and the pages are freed back to the system. The test broke on the list_lru rewrite, but I'm not sure how that it was supposed to work previously. In the meantime CI is broken so reverting for now. Fixes: 444e2a19d7fd ("ttm/pool: port to list_lru. (v2)") Cc: Christian Koenig Cc: Johannes Weiner Cc: Dave Chinner Cc: Christian König Cc: Dave Airlie Signed-off-by: Maarten Lankhorst Signed-off-by: Dave Airlie Link: https://patch.msgid.link/20260409142658.1511941-2-dev@lankhorst.se

drm/ttm/tests: fix lru_count ASSERT

2026-04-09T20:53:10Z

On pool init we should expect the lru_count for each node to be zeroed as per __list_lru_init -> init_one_lru, but here we are asserting the opposite. Currently our CI is blowing up with: 10:23:33] # ttm_device_init_pools: ASSERTION FAILED at drivers/gpu/drm/ttm/tests/ttm_device_test.c:178 [10:23:33] Expected !list_lru_count(&pt.pages) to be false, but is true [10:23:33] [FAILED] DMA allocations, DMA32 required [10:23:33] [PASSED] No DMA allocations, DMA32 required [10:23:33] # ttm_device_init_pools: ASSERTION FAILED at drivers/gpu/drm/ttm/tests/ttm_device_test.c:178 [10:23:33] Expected !list_lru_count(&pt.pages) to be false, but is true Fixes: 444e2a19d7fd ("ttm/pool: port to list_lru. (v2)") Signed-off-by: Matthew Auld Cc: Matthew Brost Cc: Christian Koenig Cc: Dave Airlie Reviewed-by: Ryszard Knop Signed-off-by: Dave Airlie Link: https://patch.msgid.link/20260409121512.81298-3-matthew.auld@intel.com

ttm/pool: track allocated_pages per numa node.

2026-04-07T20:52:48Z

This gets the memory sizes from the nodes and stores the limit as 50% of those. I think eventually we should drop the limits once we have memcg aware shrinking, but this should be more NUMA friendly, and I think seems like what people would prefer to happen on NUMA aware systems. Cc: Christian Koenig Signed-off-by: Dave Airlie

ttm/pool: make pool shrinker NUMA aware (v2)

2026-04-07T20:52:47Z

This enable NUMA awareness for the shrinker on the ttm pools. Cc: Christian Koenig Cc: Dave Chinner Reviewed-by: Christian König Signed-off-by: Dave Airlie

ttm/pool: drop numa specific pools

2026-04-07T20:52:47Z

The list_lru will now handle numa for us, so no need to keep separate pool types for it. Just consolidate into the global ones. This adds a debugfs change to avoid dumping non-existant orders due to this change. Cc: Christian Koenig Cc: Johannes Weiner Signed-off-by: Dave Airlie

ttm/pool: port to list_lru. (v2)

2026-04-07T20:52:47Z

This is an initial port of the TTM pools for write combined and uncached pages to use the list_lru. This makes the pool's more NUMA aware and avoids needing separate NUMA pools (later commit enables this). Cc: Christian Koenig Cc: Johannes Weiner Cc: Dave Chinner Reviewed-by: Christian König Signed-off-by: Dave Airlie

drm/ttm: use gpu mm stats to track gpu memory allocations. (v4)

2026-04-07T20:52:47Z

This uses the newly introduced per-node gpu tracking stats, to track GPU memory allocated via TTM and reclaimable memory in the TTM page pools. These stats will be useful later for system information and later when mem cgroups are integrated. Cc: Christian Koenig Cc: Matthew Brost Cc: Johannes Weiner Cc: linux-mm@kvack.org Cc: Andrew Morton Acked-by: Christian König Signed-off-by: Dave Airlie

Merge tag 'drm-misc-next-2026-03-26' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2026-03-27T02:45:54Z

drm-misc-next for v7.1: UAPI Changes: amdxdna: - support per-BO memory-usage queries docs: - Improve UAPI documentation panthor: - extend timestamp query with flags Core Changes: edid: - provide enum drm_output_color_format; mass-convert drivers gem-dma: - use drm_dev_dma_dev() for DMA mappings - set VM_DONTDUMP on mmap mipi-dbi: - drop simple-display; mass-convert drivers prime: - use drm_dev_dma_dev() for DMA mappings ttm: - improve handling of gfp_retry_mayfail Driver Changes: amdgpu: - use atomic_create_state for private_obj amdxdna: - refactor GEM implementation - fixes bridge: - provide clear-and-put helper for reliable cleanup - analogix_dp: Use DP helpers for link training - lontium-lt8713sx: Fix 64-bit division and Kconfig - samsung-dsim: Use clear-and-put imagination: - improve power-off sequence - support context-reset notification from firmware komeda: - support Arm China Linlon D6 plus DT bindings mediatek: - use drm_dev_dma_dev() for DMA mappings panel: - support Himax HX83121A plus DT bindings - support JuTouch JT070TM041 plus DT bindings - support Samsung S6E8FC0 plus DT bindings - himax-hx83102c: support Samsung S6E8FC0 plus DT bindings; support backlight - ili9806e: support Rocktech RK050HR345-CT106A plus DT bindings - simple: support Tianma TM050RDH03 plus DT bindings panthor: - support various sources for timestamp queries - fixes omapdrm: - use atomic_create_state for private_obj rcar-du: - fix suspend/resume wrt VSP interface - fix leak of device_link - clean up sun4i: - use drm_dev_dma_dev() for DMA mappings tegra: - use atomic_create_state for private_obj xe: - send 'none' recovery method for XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET Signed-off-by: Dave Airlie From: Thomas Zimmermann Link: https://patch.msgid.link/20260326151812.GA76082@linux.fritz.box

Merge tag 'drm-xe-next-2026-03-25' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

2026-03-27T01:01:45Z

Hi Dave and Sima, Here goes our third, perhaps, final drm-xe-next PR towards 7.1. In the big things we have: - THP support in drm_pagemap - xe_vm_get_property_ioctl Thanks, Matt UAPI Changes: - Implement xe_vm_get_property_ioctl (Jonathan) Cross-subsystem Changes: - Enable THP support in drm_pagemap (Francois, Brost) Core Changes: - Improve VF FLR synchronization for Xe VFIO (Piotr) Driver Changes: - Fix confusion with locals on context creation (Tomasz, Fixes) - Add new SVM copy GT stats per size (Francois) - always keep track of remap prev/next (Auld, Fixes) - AuxCCS handling and render compression modifiers (Tvrtko) - Implement recent spec updates to Wa_16025250150 (Roper) - xe3p_lpg: L2 flush optimization (Tejas) - vf: Improve getting clean NULL context (Wajdeczko) - pf: Fix use-after-free in migration restore (Winiarski. Fixes) - Fix format specifier for printing pointer differences (Nathan Chancellor, Fixes) - Extend Wa_14026781792 for xe3lpg (Niton) - xe3p_lpg: Add Wa_16029437861 (Varun) - Fix spelling mistakes and comment style in ttm_resource.c (Varun) - Merge drm/drm-next into drm-xe-next (Thomas) - Fix missing runtime PM reference in ccs_mode_store (Sanjay, Fixes) - Fix uninitialized new_ts when capturing context timestamp (Umesh) - Allow reading after disabling OA stream (Ashutosh) - Page Reclamation Fixes (Brian Nguyen, Fixes) - Include running dword offset in default_lrc dumps (Roper) - Assert/Deassert I2C IRQ (Raag) - Fixup reset, wedge, unload corner cases (Zhanjun, Brost) - Fail immediately on GuC load error (Daniele) - Fix kernel-doc for DRM_XE_VM_BIND_FLAG_DECOMPRESS (Niton, Fixes) - Drop redundant entries for Wa_16021867713 & Wa_14019449301 (Roper, Fixes) Signed-off-by: Dave Airlie From: Matthew Brost Link: https://patch.msgid.link/acS5xmWC3ivPTmyV@gsse-cloud1.jf.intel.com

drm/ttm: Avoid invoking the OOM killer when reading back swapped content

2026-03-20T09:38:10Z

In situations where the system is very short on RAM, the shmem readback from swap-space may invoke the OOM killer. However, since this might be a recoverable situation where the caller is indicating this by setting struct ttm_operation_ctx::gfp_retry_mayfail to true, adjust the gfp value used by the allocation accordingly. Signed-off-by: Thomas Hellström Reviewed-by: Maarten Lankhorst Acked-by: Christian König Link: https://patch.msgid.link/20260317141856.237876-3-thomas.hellstrom@linux.intel.com