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Wed, 08 Jul 2026 01:16:52 -0700 (PDT) From: "Mukesh Kumar Chaurasiya (IBM)" To: maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, peterz@infradead.org, jpoimboe@kernel.org, jbaron@akamai.com, aliceryhl@google.com, rostedt@goodmis.org, ardb@kernel.org, oleg@redhat.com, ojeda@kernel.org, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, dakr@kernel.org, daniel.almeida@collabora.com, tamird@kernel.org, acourbot@nvidia.com, work@onurozkan.dev, nathan@kernel.org, ndesaulniers@google.com, morbo@google.com, justinstitt@google.com, msuchanek@suse.de, mkchauras@gmail.com, sshegde@linux.ibm.com, mchauras@linux.ibm.com, thuth@redhat.com, segher@kernel.crashing.org, ryan.roberts@arm.com, fujita.tomonori@gmail.com, joelagnelf@nvidia.com, prafulrai522@gmail.com, gregkh@linuxfoundation.org, nsc@kernel.org, japo@linux.ibm.com, lyude@redhat.com, lina+kernel@asahilina.net, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH V17 0/8] Rust Support for powerpc Date: Wed, 8 Jul 2026 13:46:25 +0530 Message-ID: <20260708081633.1248382-1-mkchauras@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Enable experimental rust support for ppc64le and ppc32be. The patch for ppc32 has been provided by Link Mauve[1] and ppc64le support[2] has been merged over it. ppc32 needs some toolchain fixes mentioned in the patch `rust: Add PowerPC support` and the discussion for that is done here[1]. This has been tested on - powernv9 hardware - pseries P11 hardware - pseries(9, 10) qemu - powernv(9, 10) qemu - rustdoc on x86 and powerpc64le - rusttest on x86 and powerpc64le We are actively working with our LLVM team to get the target for ppc, ppc64 and ppc64le in the rust compiler. [1] https://lore.kernel.org/all/20260204030507.8203-1-linkmauve@linkmauve.fr [2] https://lore.kernel.org/all/20260204042417.83903-1-mkchauras@gmail.com Changelog: V16 -> V17: - Rebased to latest v7.2-rc2 V15 -> V16: - Rebased to latest v7.1-rc4 V15: https://lore.kernel.org/all/20260426105932.2270364-1-mkchauras@gmail.com/ V14 -> V15: - Fix an issue with rustdoc build on ppc64le V14: https://lore.kernel.org/all/20260426085725.2090827-1-mkchauras@gmail.com/ V13 -> V14: - 2nd patch is rewritten (Christian) - Fixed a small typo in rust/Makefile (Sashiko) - Fixed commit message in Patch 4 (Sashiko) V13: https://lore.kernel.org/all/20260424054742.45832-1-mkchauras@gmail.com/ V12 -> V13: - Added a patch for fixing build issue on ppc32 by Link Mauve - Added another patch to fix a build issue in dma-buf - Added another patch to enforce minimum `rustc` version for powerpc V12: https://lore.kernel.org/all/20260421120958.190430-1-mkchauras@gmail.com/ V11 -> V12: - Rebased to mainline (rust/Makefile conflict resolved) V11: https://lore.kernel.org/all/20260417152253.2312961-1-mkchauras@gmail.com/ V10 -> V11: - Updated `rust/Makefile` - Not all libraries are move to `rust/host` directory now. Only proc_macro2, quote and syn are moved - Special handling for pin init is added. Details in commit - Removed mkdir for `rust/host`, this is now handled by toolchain. V10: https://lore.kernel.org/all/20260406200149.3727922-1-mkchauras@gmail.com/ V9 -> V10: - rust/Makefile updated with review comments from Miguel - Patch 1/4 updated with commit message and subject V9: https://lore.kernel.org/all/20260404121610.1956528-1-mkchauras@gmail.com/ V8 -> V9: - rust/Makefile updated with a directory instead of abspath V8: https://lore.kernel.org/all/20260403145308.1042622-1-mkchauras@gmail.com/ V7 -> V8: - rust/Makefile updated to separate host libraries from target V7: https://lore.kernel.org/all/20260329160254.2592207-1-mkchauras@gmail.com/ Changelog: V6 -> V7: - Documentation removed as powerpc is still under development - Added a fix for race condition in rust/Makefile V6: https://lore.kernel.org/all/20260210090023.2587534-1-mkchauras@gmail.com V5 -> V6: - Added a missing Tested by from Venkat which got missed since V3 - Support is marked as Maintained instead of experimental V5: https://lore.kernel.org/all/20260210053756.2088302-1-mkchauras@gmail.com V4 -> V5: - Removed a nested ifdef from PPC64 for Little endian toolchain V4: https://lore.kernel.org/all/20260209105456.1551677-1-mkchauras@gmail.com V3 -> V4: - Co-developed-by header added in patch 1 V3: https://lore.kernel.org/all/20260205180429.3280657-1-mkchauras@gmail.com V2 -> V3: - Splited HAVE_RUST in 2 lines - BINDGEN_TARGET_powerpc initialized before assigning the same to BINDGEN_TARGET V2: https://lore.kernel.org/all/20260204210125.613350-1-mkchauras@gmail.com V1 -> V2: - jump label fix for rust has been moved to a separate patch - PPC32 support has been taken - rust support has been marked experimental - target.json dependency has been removed - HAVE_RUST now depends on CPU_LITTLE_ENDIAN for PPC64 V1: https://lore.kernel.org/all/20260204042417.83903-1-mkchauras@gmail.com Link Mauve (2): rust: Make __udivdi3() and __umoddi3() panic rust: Add PowerPC support Mukesh Kumar Chaurasiya (IBM) (6): powerpc/syscall: Fix syscall skip handling for seccomp and ptrace rust: Fix "multiple candidates for rmeta dependency core" error dma-resv: Fix undefined symbol when CONFIG_DMA_SHARED_BUFFER is disabled powerpc/jump_label: adjust inline asm to be consistent rust/powerpc: Set min rustc version for powerpc powerpc: Enable Rust for ppc64le arch/powerpc/Kconfig | 2 + arch/powerpc/Makefile | 7 ++++ arch/powerpc/include/asm/jump_label.h | 23 ++++++----- arch/powerpc/include/asm/ptrace.h | 22 +++++++++- arch/powerpc/include/asm/syscall.h | 6 +++ arch/powerpc/include/uapi/asm/ptrace.h | 6 ++- arch/powerpc/kernel/ptrace/ptrace.c | 2 + arch/powerpc/kernel/syscall.c | 18 +++++++++ rust/Makefile | 56 +++++++++++++++++--------- rust/compiler_builtins.rs | 6 +++ rust/helpers/helpers.c | 2 + scripts/min-tool-version.sh | 2 + 12 files changed, 119 insertions(+), 33 deletions(-) -- 2.55.0