Changes in Kbuild

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/testing/cxl/test/Kbuild

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/tools/testing/cxl/test/Kbuild

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/tools/testing/cxl/test/Kbuild

12bffaef28820e0b94c644c75708195c61af78f7 - Merge tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Sat, 18 Apr 2026 00:52:58 +0200

Merge tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlPull CXL (Compute Express Link) updates from Dave Jiang: "The significant change of interest is the handling of soft reserved memory conflict between CXL and HMEM. In essence CXL will be the first to claim the soft reserved memory ranges that belongs to CXL and attempt to enumerate them with best effort. If CXL is not able to enumerate the ranges it will punt them to HMEM. There are also MAINTAINERS email changes from Dan Williams and Jonathan Cameron"* tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (37 commits) MAINTAINERS: Update Jonathan Cameron's email address cxl/hdm: Add support for 32 switch decoders MAINTAINERS: Update address for Dan Williams tools/testing/cxl: Enable replay of user regions as auto regions cxl/region: Add a region sysfs interface for region lock status tools/testing/cxl: Test dax_hmem takeover of CXL regions tools/testing/cxl: Simulate auto-assembly failure dax/hmem: Parent dax_hmem devices dax/hmem: Fix singleton confusion between dax_hmem_work and hmem devices dax/hmem: Reduce visibility of dax_cxl coordination symbols cxl/region: Constify cxl_region_resource_contains() cxl/region: Limit visibility of cxl_region_contains_resource() dax/cxl: Fix HMEM dependencies cxl/region: Fix use-after-free from auto assembly failure cxl/core: Check existence of cxl_memdev_state in poison test cxl/core: use cleanup.h for devm_cxl_add_dax_region cxl/core/region: move dax region device logic into region_dax.c cxl/core/region: move pmem region driver logic into region_pmem.c dax/hmem, cxl: Defer and resolve Soft Reserved ownership cxl/region: Add helper to check Soft Reserved containment by CXL regions ... List of files: /linux/tools/testing/cxl/test/Kbuild

303d32843b831ba86c28aea188db95da65d88f31 - Merge branch 'for-7.1/dax-hmem' into cxl-for-next

Fri, 03 Apr 2026 21:21:27 +0200

Merge branch 'for-7.1/dax-hmem' into cxl-for-nextThe series addresses conflicts between HMEM and CXL when handling SoftReserved memory ranges. CXL will try best effort in claiming the SoftReserved memory region that are CXL regions. If fails, it will puntback to HMEM.tools/testing/cxl: Test dax_hmem takeover of CXL regionstools/testing/cxl: Simulate auto-assembly failuredax/hmem: Parent dax_hmem devicesdax/hmem: Fix singleton confusion between dax_hmem_work and hmem devicesdax/hmem: Reduce visibility of dax_cxl coordination symbolscxl/region: Constify cxl_region_resource_contains()cxl/region: Limit visibility of cxl_region_contains_resource()dax/cxl: Fix HMEM dependenciescxl/region: Fix use-after-free from auto assembly failuredax/hmem, cxl: Defer and resolve Soft Reserved ownershipcxl/region: Add helper to check Soft Reserved containment by CXL regionsdax: Track all dax_region allocations under a global resource treedax/cxl, hmem: Initialize hmem early and defer dax_cxl bindingdax/hmem: Gate Soft Reserved deferral on DEV_DAX_CXLdax/hmem: Request cxl_acpi and cxl_pci before walking Soft Reserved rangesdax/hmem: Factor HMEM registration into __hmem_register_device()dax/bus: Use dax_region_put() in alloc_dax_region() error path List of files: /linux/tools/testing/cxl/test/Kbuild

549b5c12ef06441dbde4718f16e23c547f5592d7 - tools/testing/cxl: Test dax_hmem takeover of CXL regions

Fri, 27 Mar 2026 06:28:21 +0100

tools/testing/cxl: Test dax_hmem takeover of CXL regionsWhen platform firmware is committed to publishing EFI_CONVENTIONAL_MEMORYin the memory map, but CXL fails to assemble the region, dax_hmem canattempt to attach a dax device to the memory range.Take advantage of the new ability to support multiple "hmem_platform"devices, and to enable regression testing of several scenarios:* CXL correctly assembles a region, check dax_hmem fails to attach dax* CXL fails to assemble a region, check dax_hmem successfully attaches dax* Check that loading the dax_cxl driver loads the dax_hmem driver* Attempt to race cxl_mock_mem async probe vs dax_hmem probe flushing. Check that both positive and negative cases.Signed-off-by: Dan Williams Reviewed-by: Ira Weiny Reviewed-by: Dave Jiang Reviewed-by: Alison Schofield Tested-by: Alison Schofield Link: https://patch.msgid.link/20260327052821.440749-10-dan.j.williams@intel.comSigned-off-by: Dave Jiang List of files: /linux/tools/testing/cxl/test/Kbuild

ec496f77b4c11036cc835d6f045fb5e5ef1e6530 - Merge branch 'for-6.20/sony' into for-linus

Mon, 09 Feb 2026 17:33:26 +0100

Merge branch 'for-6.20/sony' into for-linus- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders) List of files: /linux/tools/testing/cxl/test/Kbuild

cc4adab164b772a34b3340d644b7c4728498581e - Merge tag 'v6.19-rc1' into msm-next

Tue, 20 Jan 2026 23:06:55 +0100

Merge tag 'v6.19-rc1' into msm-nextMerge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWCconfig database defining UBWC_6).Signed-off-by: Dmitry Baryshkov List of files: /linux/tools/testing/cxl/test/Kbuild

5add3c3c280a35f7e258e9cef7607db5a2e56fdc - Merge drm/drm-next into drm-xe-next

Fri, 19 Dec 2025 11:51:22 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.19-rc1. An important upstream bugfix andto help unblock PTL CI.Signed-off-by: Thomas Hellström List of files: /linux/tools/testing/cxl/test/Kbuild

ec439c38013550420aecc15988ae6acb670838c1 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Wed, 17 Dec 2025 06:29:38 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1Cross-merge BPF and other fixes after downstream PR.Signed-off-by: Alexei Starovoitov List of files: /linux/tools/testing/cxl/test/Kbuild

b8304863a3990d0f18c38e5b94191830a63ee1af - Merge drm/drm-next into drm-intel-next

Mon, 15 Dec 2025 14:24:02 +0100

Merge drm/drm-next into drm-intel-nextSync-up some display code needed for Async flips refactor.Signed-off-by: Rodrigo Vivi List of files: /linux/tools/testing/cxl/test/Kbuild

7f790dd21a931c61167f7bdc327aecf2cebad327 - Merge drm/drm-next into drm-misc-next

Mon, 15 Dec 2025 09:27:39 +0100

Merge drm/drm-next into drm-misc-nextLet's kickstart the v6.20 (7.0?) release cycle.Signed-off-by: Maxime Ripard List of files: /linux/tools/testing/cxl/test/Kbuild

24f171c7e145f43b9f187578e89b0982ce87e54c - Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Sun, 21 Dec 2025 11:11:11 +0100

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.19We've been quite busy with fixes since the merge window, though not inany particularly exciting ways - the standout thing is the fix for _SXcontrols which were broken by a change to how we do clamping, otherwiseit's all fairly run of the mill fixes and quirks. List of files: /linux/tools/testing/cxl/test/Kbuild

84318277d6334c6981ab326d4acc87c6a6ddc9b8 - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Mon, 15 Dec 2025 12:53:27 +0100

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesPull in rc1 to include all changes since the merge window closed,and grab all fixes and changes from drm/drm-next.Signed-off-by: Maarten Lankhorst List of files: /linux/tools/testing/cxl/test/Kbuild

5797d10ea4fade7df0f920c368cad07f705afc63 - Merge tag 'cxl-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Fri, 05 Dec 2025 02:55:18 +0100

Merge tag 'cxl-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlPull compute express link (CXL) updates from Dave Jiang: "The additions of note are adding CXL region remove support for locked CXL decoders, adding unit testing support for XOR address translation, and adding unit testing support for extended linear cache. Misc: - Remove incorrect page-allocator quirk section in documentation - Remove unused devm_cxl_port_enumerate_dports() function - Fix typo in cdat.c code comment - Replace use of system_wq with system_percpu_wq - Add locked CXL decoder support for region removal - Return when generic target updated - Rename region_res_match_cxl_range() to spa_maps_hpa() - Clarify comment in spa_maps_hpa() Enable unit testing for XOR address translation of SPA to DPA and vice versa: - Refactor address translation funcs for testing in cxl_region - Make the XOR calculations available for testing - Add cxl_translate module for address translation testing in cxl_test Extended Linear Cache changes: - Add extended linear cache size sysfs attribute - Adjust failure emission of extended linear cache detection in cxl_acpi - Added extended linear cache unit testing support in cxl_test Preparation refactor patches for PRM translation support: - Simplify cxl_rd_ops allocation and handling - Group xor arithmetric setup code in a single block - Remove local variable @inc in cxl_port_setup_targets()"* tag 'cxl-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (22 commits) cxl/test: Assign overflow_err_count from log->nr_overflow cxl/test: Remove ret_limit race condition in mock_get_event() cxl/test: remove unused mock function for cxl_rcd_component_reg_phys() cxl/test: Add support for acpi extended linear cache cxl/test: Add cxl_test CFMWS support for extended linear cache cxl/test: Standardize CXL auto region size cxl/region: Remove local variable @inc in cxl_port_setup_targets() cxl/acpi: Group xor arithmetric setup code in a single block cxl: Simplify cxl_rd_ops allocation and handling cxl: Clarify comment in spa_maps_hpa() cxl: Rename region_res_match_cxl_range() to spa_maps_hpa() acpi/hmat: Return when generic target is updated cxl: Add handling of locked CXL decoder cxl/region: Add support to indicate region has extended linear cache cxl: Adjust extended linear cache failure emission in cxl_acpi cxl/test: Add cxl_translate module for address translation testing cxl/acpi: Make the XOR calculations available for testing cxl/region: Refactor address translation funcs for testing cxl/pci: replace use of system_wq with system_percpu_wq cxl: fix typos in cdat.c comments ... List of files: /linux/tools/testing/cxl/test/Kbuild

87c69670daba100809144e637bc29335c48231cc - Merge branch 'for-6.19/cxl-addr-xlat' into cxl-for-next

Thu, 13 Nov 2025 16:44:00 +0100

Merge branch 'for-6.19/cxl-addr-xlat' into cxl-for-nextEnable unit testing for XOR address translation of SPA to DPA and vice versa. List of files: /linux/tools/testing/cxl/test/Kbuild

06377c54a133621d61fa76cdcea85077c5b958f4 - cxl/test: Add cxl_translate module for address translation testing

Tue, 14 Oct 2025 10:24:32 +0200

cxl/test: Add cxl_translate module for address translation testingAdd a loadable test module that validates CXL address translationcalculations using parameterized test vectors. The module tests bothhost-to-device and device-to-host address translations for Modulo andXOR interleave arithmetic.Two types of testing are provided:1. Parameterized test vectors: Test vectors are passed as module parameters in the format: "dpa pos r_eiw r_eig hb_ways math expected_spa". Round-trip validation is performed: - Translate a DPA and position to a SPA - Verify the result matches expected SPA - Translate that SPA back to a DPA and position - Verify round-trip consistency2. Internal validation testing: When no test vectors are provided, the module performs validation of the translation functions by checking parameter boundaries and running 10,000 iterations of randomly generated valid parameters to exercise the core calculation functions.The module uses the CXL Driver translation functions through symbolsexported exclusively for cxl_translate.Reviewed-by: Jonathan Cameron Reviewed-by: Dave Jiang Signed-off-by: Alison Schofield Signed-off-by: Dave Jiang List of files: /linux/tools/testing/cxl/test/Kbuild

a23e1966932464e1c5226cb9ac4ce1d5fc10ba22 - Merge branch 'next' into for-linus

Mon, 15 Jul 2024 23:03:44 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.11 merge window. List of files: /linux/tools/testing/cxl/test/Kbuild

6f47c7ae8c7afaf9ad291d39f0d3974f191a7946 - Merge tag 'v6.9' into next

Tue, 28 May 2024 06:37:18 +0200

Merge tag 'v6.9' into nextSync up with the mainline to bring in the new cleanup API. List of files: /linux/tools/testing/cxl/test/Kbuild

60a2f25de7b8b785baee2932db932ae9a5b8c86d - Merge drm/drm-next into drm-intel-gt-next

Thu, 16 May 2024 09:33:01 +0200

Merge drm/drm-next into drm-intel-gt-nextSome display refactoring patches are needed in order to allow conflict-less merging.Signed-off-by: Tvrtko Ursulin List of files: /linux/tools/testing/cxl/test/Kbuild