From patchwork Wed Sep 25 21:06:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13812435 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D1FA715B992; Wed, 25 Sep 2024 21:07:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727298431; cv=none; b=V8qF3xvD0vs/pVH3sALoxXBCDgYAAEVjS5FtWHswKG7SZ6Ckg588AW3eJZCqiSwNanG/qaMPUPgDNGhSFX+evAP0FbQPyTmvCDi/SnGmm9E1wAnvbHGoup5SFytMGJY/ZWyQbc+98tEg+A7Azfjo/E50LQ0oxdL0OfKfVghxDKM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727298431; c=relaxed/simple; bh=9WWq9eu7cuIVH7faIexy4b1QmBlJqq/TWxw3ZIHVjt4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=b0l00+G3IW9+qfZLkTKZQi4ptSZAGPUzp/OjbSQ7dpzN4dKD3rQutyIld+0du3wslfnReujCddSNB8fplRvLG4QCM5pysRaA9of7Iea3io0HAQovTVaKkrkaffO4DDeXS6M510PgiI5YX591VUPWLna/p1VIuNScv2DUnN4qa5E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RFMABg80; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RFMABg80" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A44A1C4CECF; Wed, 25 Sep 2024 21:07:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727298431; bh=9WWq9eu7cuIVH7faIexy4b1QmBlJqq/TWxw3ZIHVjt4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RFMABg80UAzlZRGWyrqfIVrpC9pf+KZ7ccnvBYINSdZOE0vEoxMWceBAliZEcMTDW RCpJv2VfcSBLoHeF7E0VDAWsrUKkSgwBOV+P/dVgyITQ122pl5kO5UEOgqjNQZdVfO h4SNxxhIeb2DH76DzE4IlhLrg0T8UQo/j9VkVlXW+oUFymIn6rtT8GPYYlUEcZu7uZ wqHhouBebch/JiLDf7+51e9ufJfgMu3DNhow/hM/VsMPDaC6oAMSQo6eXKF+wHEHKy BbipYo1sQUC+mbsQHvc97qE69iXeCHgMwZE4eDvGEVZFYu6lq2naZhA8bXu43iX0nU OKOKG0CyQpcrg== From: Arnd Bergmann To: linux-mm@kvack.org Cc: Arnd Bergmann , "Jason A. Donenfeld" , Alexander Viro , Alexandre Torgue , Andreas Larsson , Andrew Morton , Ard Biesheuvel , Christian Brauner , Christoph Hellwig , Christophe Leroy , Damien Le Moal , David Hildenbrand , Greg Ungerer , Helge Deller , Kees Cook , "Liam R . Howlett" , Lorenzo Stoakes , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Nicholas Piggin , Richard Henderson , Thomas Bogendoerfer , Vladimir Murzin , Vlastimil Babka , linux-stm32@st-md-mailman.stormreply.com, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org Subject: [PATCH 4/5] asm-generic: use asm-generic/mman-common.h on parisc and alpha Date: Wed, 25 Sep 2024 21:06:14 +0000 Message-Id: <20240925210615.2572360-5-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240925210615.2572360-1-arnd@kernel.org> References: <20240925210615.2572360-1-arnd@kernel.org> Precedence: bulk X-Mailing-List: linux-parisc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Arnd Bergmann These two architectures each have their own set of MAP_* flags, like powerpc, mips and others do. In addition, the msync() flags are also different, here both define the same flags but in a different order. Finally, alpha also has a custom MADV_DONTNEED flag for madvise. Make the generic MADV_DONTNEED and MS_* definitions conditional on them already being defined and then include the common header header from both architectures, to remove the bulk of the contents. Signed-off-by: Arnd Bergmann Reviewed-by: Richard Henderson Reviewed-by: Lorenzo Stoakes --- arch/alpha/include/uapi/asm/mman.h | 68 +++----------------------- arch/parisc/include/uapi/asm/mman.h | 66 +------------------------ include/uapi/asm-generic/mman-common.h | 5 ++ 3 files changed, 13 insertions(+), 126 deletions(-) diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h index 1f1c03c047ce..fc8b74aa3f89 100644 --- a/arch/alpha/include/uapi/asm/mman.h +++ b/arch/alpha/include/uapi/asm/mman.h @@ -2,18 +2,6 @@ #ifndef __ALPHA_MMAN_H__ #define __ALPHA_MMAN_H__ -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#ifndef PROT_SEM /* different on mips and xtensa */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#endif -/* 0x10 reserved for arch-specific use */ -/* 0x20 reserved for arch-specific use */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - /* 0x01 - 0x03 are defined in linux/mman.h */ #define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */ #define MAP_FIXED 0x100 /* Interpret addr exactly */ @@ -43,62 +31,18 @@ #define MCL_ONFAULT 32768 /* lock all pages that are faulted in */ /* - * Flags for mlock - */ -#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ - -/* - * Flags for msync + * Flags for msync, order is different from all others */ #define MS_ASYNC 1 /* sync memory asynchronously */ #define MS_SYNC 2 /* synchronous memory sync */ #define MS_INVALIDATE 4 /* invalidate the caches */ -#define MADV_NORMAL 0 /* no further special treatment */ -#define MADV_RANDOM 1 /* expect random page references */ -#define MADV_SEQUENTIAL 2 /* expect sequential page references */ -#define MADV_WILLNEED 3 /* will need these pages */ -#define MADV_DONTNEED 6 /* don't need these pages */ +/* + * Flags for madvise, 1 through 3 are normal + */ /* originally MADV_SPACEAVAIL 5 */ +#define MADV_DONTNEED 6 /* don't need these pages */ -/* common parameters: try to keep these consistent across architectures */ -#define MADV_FREE 8 /* free pages only if memory pressure */ -#define MADV_REMOVE 9 /* remove these pages & resources */ -#define MADV_DONTFORK 10 /* don't inherit across fork */ -#define MADV_DOFORK 11 /* do inherit across fork */ - -#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ -#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ - -#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ -#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ - -#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, - overrides the coredump filter bits */ -#define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag */ - -#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */ -#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */ - -#define MADV_COLD 20 /* deactivate these pages */ -#define MADV_PAGEOUT 21 /* reclaim these pages */ - -#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ -#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ - -#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ - -#define MADV_COLLAPSE 25 /* Synchronous hugepage collapse */ - -#define MADV_HWPOISON 100 /* poison a page for testing */ -#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ - -/* compatibility flags */ -#define MAP_FILE 0 - -#define PKEY_DISABLE_ACCESS 0x1 -#define PKEY_DISABLE_WRITE 0x2 -#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ - PKEY_DISABLE_WRITE) +#include #endif /* __ALPHA_MMAN_H__ */ diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h index 1cd5d816d4cf..3732950a5cd8 100644 --- a/arch/parisc/include/uapi/asm/mman.h +++ b/arch/parisc/include/uapi/asm/mman.h @@ -2,19 +2,6 @@ #ifndef __PARISC_MMAN_H__ #define __PARISC_MMAN_H__ - -#define PROT_READ 0x1 /* page can be read */ -#define PROT_WRITE 0x2 /* page can be written */ -#define PROT_EXEC 0x4 /* page can be executed */ -#ifndef PROT_SEM /* different on mips and xtensa */ -#define PROT_SEM 0x8 /* page may be used for atomic ops */ -#endif -/* 0x10 reserved for arch-specific use */ -/* 0x20 reserved for arch-specific use */ -#define PROT_NONE 0x0 /* page can not be accessed */ -#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ -#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ - /* 0x01 - 0x03 are defined in linux/mman.h */ #define MAP_TYPE 0x2b /* Mask for type of mapping, includes bits 0x08 and 0x20 */ #define MAP_FIXED 0x04 /* Interpret addr exactly */ @@ -43,61 +30,12 @@ #define MCL_ONFAULT 4 /* lock all pages that are faulted in */ /* - * Flags for mlock - */ -#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ - -/* - * Flags for msync + * Flags for msync, order is different from all others */ #define MS_SYNC 1 /* synchronous memory sync */ #define MS_ASYNC 2 /* sync memory asynchronously */ #define MS_INVALIDATE 4 /* invalidate the caches */ -#define MADV_NORMAL 0 /* no further special treatment */ -#define MADV_RANDOM 1 /* expect random page references */ -#define MADV_SEQUENTIAL 2 /* expect sequential page references */ -#define MADV_WILLNEED 3 /* will need these pages */ -#define MADV_DONTNEED 4 /* don't need these pages */ - -/* common parameters: try to keep these consistent across architectures */ -#define MADV_FREE 8 /* free pages only if memory pressure */ -#define MADV_REMOVE 9 /* remove these pages & resources */ -#define MADV_DONTFORK 10 /* don't inherit across fork */ -#define MADV_DOFORK 11 /* do inherit across fork */ - -#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ -#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ - -#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ -#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ - -#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, - overrides the coredump filter bits */ -#define MADV_DODUMP 17 /* Clear the MADV_DONTDUMP flag */ - -#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */ -#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */ - -#define MADV_COLD 20 /* deactivate these pages */ -#define MADV_PAGEOUT 21 /* reclaim these pages */ - -#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */ -#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */ - -#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */ - -#define MADV_COLLAPSE 25 /* Synchronous hugepage collapse */ - -#define MADV_HWPOISON 100 /* poison a page for testing */ -#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ - -/* compatibility flags */ -#define MAP_FILE 0 - -#define PKEY_DISABLE_ACCESS 0x1 -#define PKEY_DISABLE_WRITE 0x2 -#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ - PKEY_DISABLE_WRITE) +#include #endif /* __PARISC_MMAN_H__ */ diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h index 2911dd14ef2a..81a14ed99197 100644 --- a/include/uapi/asm-generic/mman-common.h +++ b/include/uapi/asm-generic/mman-common.h @@ -27,15 +27,20 @@ /* * Flags for msync */ +#ifndef MS_ASYNC /* different order on alpha and parisc */ #define MS_ASYNC 1 /* sync memory asynchronously */ #define MS_INVALIDATE 2 /* invalidate the caches */ #define MS_SYNC 4 /* synchronous memory sync */ +#endif #define MADV_NORMAL 0 /* no further special treatment */ #define MADV_RANDOM 1 /* expect random page references */ #define MADV_SEQUENTIAL 2 /* expect sequential page references */ #define MADV_WILLNEED 3 /* will need these pages */ +/* 4 through 6 are different on alpha */ +#ifndef MADV_DONTNEED #define MADV_DONTNEED 4 /* don't need these pages */ +#endif /* common parameters: try to keep these consistent across architectures */ #define MADV_FREE 8 /* free pages only if memory pressure */