{"id":2228351,"url":"http://patchwork.ozlabs.org/api/1.1/covers/2228351/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260426085725.2090827-1-mkchauras@gmail.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.1/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/"},"msgid":"<20260426085725.2090827-1-mkchauras@gmail.com>","date":"2026-04-26T08:57:18","name":"[V14,0/7] Rust support for powerpc","submitter":{"id":92575,"url":"http://patchwork.ozlabs.org/api/1.1/people/92575/?format=json","name":"Mukesh Kumar Chaurasiya","email":"mkchauras@gmail.com"},"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/cover/20260426085725.2090827-1-mkchauras@gmail.com/mbox/","series":[{"id":501515,"url":"http://patchwork.ozlabs.org/api/1.1/series/501515/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501515","date":"2026-04-26T08:57:18","name":"Rust support for powerpc","version":14,"mbox":"http://patchwork.ozlabs.org/series/501515/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2228351/comments/","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=qcVjImeD;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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charset=UTF-8","Content-Transfer-Encoding":"8bit","X-Spam-Status":"No, score=-0.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tDKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,\n\tSPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"Enable experimental rust support for ppc64le and ppc32be. The patch for\nppc32 has been provided by Link Mauve[1] and ppc64le support[2] has been\nmerged over it. ppc32 needs some toolchain fixes mentioned in the patch\n`rust: Add PowerPC support` and the discussion for that is done here[1].\n\nThis has been tested on\n- powernv9 hardware\n- pseries P11 hardware\n- pseries(9, 10) qemu\n- powernv(9, 10) qemu\n- rustdoc on x86 and powerpc64le\n- rusttest on x86 and powerpc64le\n\nWe are actively working with our LLVM team to get the target for ppc,\nppc64 and ppc64le in the rust compiler.\n\n[1] https://lore.kernel.org/all/20260204030507.8203-1-linkmauve@linkmauve.fr\n[2] https://lore.kernel.org/all/20260204042417.83903-1-mkchauras@gmail.com\n\nChangelog:\nV13 -> V14:\n- 2nd patch is rewritten (Christian)\n- Fixed a small typo in rust/Makefile (Sashiko)\n- Fixed commit message in Patch 4 (Sashiko)\nV13: https://lore.kernel.org/all/20260424054742.45832-1-mkchauras@gmail.com/\n\nV12 -> V13:\n- Added a patch for fixing build issue on ppc32 by Link Mauve\n- Added another patch to fix a build issue in dma-buf\n- Added another patch to enforce minimum `rustc` version for powerpc\nV12: https://lore.kernel.org/all/20260421120958.190430-1-mkchauras@gmail.com/\n\nV11 -> V12:\n- Rebased to mainline (rust/Makefile conflict resolved)\nV11: https://lore.kernel.org/all/20260417152253.2312961-1-mkchauras@gmail.com/\n\nV10 -> V11:\n- Updated `rust/Makefile`\n- Not all libraries are move to `rust/host` directory now. Only\n proc_macro2, quote and syn are moved\n- Special handling for pin init is added. Details in commit\n- Removed mkdir for `rust/host`, this is now handled by toolchain.\nV10: https://lore.kernel.org/all/20260406200149.3727922-1-mkchauras@gmail.com/\n\nV9 -> V10:\n- rust/Makefile updated with review comments from Miguel\n- Patch 1/4 updated with commit message and subject\nV9: https://lore.kernel.org/all/20260404121610.1956528-1-mkchauras@gmail.com/\n\nV8 -> V9:\n- rust/Makefile updated with a directory instead of abspath\nV8: https://lore.kernel.org/all/20260403145308.1042622-1-mkchauras@gmail.com/\n\nV7 -> V8:\n- rust/Makefile updated to separate host libraries from target\nV7: https://lore.kernel.org/all/20260329160254.2592207-1-mkchauras@gmail.com/\n\nChangelog:\nV6 -> V7:\n- Documentation removed as powerpc is still under development\n- Added a fix for race condition in rust/Makefile\nV6: https://lore.kernel.org/all/20260210090023.2587534-1-mkchauras@gmail.com\n\nV5 -> V6:\n- Added a missing Tested by from Venkat which got missed since V3\n- Support is marked as Maintained instead of experimental\nV5: https://lore.kernel.org/all/20260210053756.2088302-1-mkchauras@gmail.com\n\nV4 -> V5:\n- Removed a nested ifdef from PPC64 for Little endian toolchain\nV4: https://lore.kernel.org/all/20260209105456.1551677-1-mkchauras@gmail.com\n\nV3 -> V4:\n- Co-developed-by header added in patch 1\nV3: https://lore.kernel.org/all/20260205180429.3280657-1-mkchauras@gmail.com\n\nV2 -> V3:\n- Splited HAVE_RUST in 2 lines\n- BINDGEN_TARGET_powerpc initialized before assigning the same to\n BINDGEN_TARGET\nV2: https://lore.kernel.org/all/20260204210125.613350-1-mkchauras@gmail.com\n\nV1 -> V2:\n- jump label fix for rust has been moved to a separate patch\n- PPC32 support has been taken\n- rust support has been marked experimental\n- target.json dependency has been removed\n- HAVE_RUST now depends on CPU_LITTLE_ENDIAN for PPC64\nLink Mauve (2):\n rust: Make __udivdi3() and __umoddi3() panic\n rust: Add PowerPC support\n\nMukesh Kumar Chaurasiya (IBM) (5):\n rust: Fix \"multiple candidates for rmeta dependency core\" error\n dma-resv: Fix undefined symbol when CONFIG_DMA_SHARED_BUFFER is\n disabled\n powerpc/jump_label: adjust inline asm to be consistent\n rust/powerpc: Set min rustc version for powerpc\n powerpc: Enable Rust for ppc64le\n\n arch/powerpc/Kconfig | 2 ++\n arch/powerpc/Makefile | 7 ++++\n arch/powerpc/include/asm/jump_label.h | 23 ++++++------\n include/linux/dma-resv.h | 2 +-\n rust/Makefile | 52 +++++++++++++++++----------\n rust/compiler_builtins.rs | 6 ++++\n scripts/min-tool-version.sh | 6 +++-\n 7 files changed, 68 insertions(+), 30 deletions(-)"}