From patchwork Wed Sep 25 21:06:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13812422 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 90C3C165F1A; Wed, 25 Sep 2024 21:07:04 +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=1727298424; cv=none; b=NEKuajR9Jj8IZj3pakFuJ9RausKPhSRVuAaha0cYb0lK2EOx9pnHBk3AD004uNcFJPgu9I1v6kcy/u0tIRiRfsEJ3n17gmh0tYjRHjbPq2ZFHwAej5bZi6STy6KOqIS+JblmHP2XC0hvMA0dJfSz8J8c1o/lqMOdyVrdLK8HkWo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727298424; c=relaxed/simple; bh=0EXzYHjw9wueOmuWN8Ox5HAuCn8dFHsgBxy03Mw7iZk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=IqYzmXsg0ezffpidOui+9vNRDEfVOnogILTRz+uBjSSxOPdJ8gCWvvLwCjvmQEK/uO60C5kZYna4bUWohBW/9N63gtyTrC86LByyOjNARJU8RsRqxKmvFhlQKo2tXVwPKvPqTG4yq1GdKV5xcy8RYHqS/QVqvjs6N6VjbgZCcHI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kdrlaTqv; 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="kdrlaTqv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7032FC4CEC7; Wed, 25 Sep 2024 21:06:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727298424; bh=0EXzYHjw9wueOmuWN8Ox5HAuCn8dFHsgBxy03Mw7iZk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kdrlaTqvjNbs0lqNwZ1flSvr94VKx4Bff0mmaUe3SciSLDp7ecrYBocKzzLehfzYA hiEVi+rpMBlv5UNrh+PU7Di6s6tuQr5oMZytGo359lRnjcKbC3W8p8cnP/PjapqluX tT/MmOaT+h19VX2kZOzYP3guT3kfRosV6TVYLBXVAB97k7eIQkFfwU3dH1rBs2Mtmf 9iy6hiPNIP63o1kJFvI6b1f40YmdGDguMypPdXeumMIMpgiLA+flbGo5FsdGxj13Xz /WjeFlSScH1pl11mv71fOFMfyJNspQIz96REsaHXkxt3MflXMa0hul4Gw4vqfNv6YY TEe1ufNgcfMOQ== 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 3/5] asm-generic: use asm-generic/mman-common.h on mips and xtensa Date: Wed, 25 Sep 2024 21:06:13 +0000 Message-Id: <20240925210615.2572360-4-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-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Arnd Bergmann mips and xtensa have almost the same asm/mman.h, aside from an unintentional difference in MAP_UNINITIALIZED that has no effect in practice. Now that the MAP_* flags are moved out of asm-generic/mman-common.h, the only difference from the its contents and the mips/xtensa version is the PROT_SEM definition that is one bit off from the rest. Make the generic PROT_SEM definition conditional on it already being defined and then include that header from both architectures, to remove the bulk of the contents. Signed-off-by: Arnd Bergmann --- arch/alpha/include/uapi/asm/mman.h | 2 + arch/mips/include/uapi/asm/mman.h | 65 +------------------------ arch/parisc/include/uapi/asm/mman.h | 3 ++ arch/xtensa/include/uapi/asm/mman.h | 66 +------------------------- include/uapi/asm-generic/mman-common.h | 2 + 5 files changed, 9 insertions(+), 129 deletions(-) diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h index 8946a13ce858..1f1c03c047ce 100644 --- a/arch/alpha/include/uapi/asm/mman.h +++ b/arch/alpha/include/uapi/asm/mman.h @@ -5,7 +5,9 @@ #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 */ diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h index 399937cefaa6..6deb62db90de 100644 --- a/arch/mips/include/uapi/asm/mman.h +++ b/arch/mips/include/uapi/asm/mman.h @@ -9,15 +9,8 @@ #ifndef _ASM_MMAN_H #define _ASM_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 */ /* 0x8 reserved for PROT_EXEC_NOFLUSH */ #define PROT_SEM 0x10 /* page may be used for atomic ops */ -/* 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 */ @@ -47,62 +40,6 @@ #define MCL_FUTURE 2 /* lock all future mappings */ #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 - */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - -#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 /* _ASM_MMAN_H */ diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h index 80f4a55763a0..1cd5d816d4cf 100644 --- a/arch/parisc/include/uapi/asm/mman.h +++ b/arch/parisc/include/uapi/asm/mman.h @@ -2,10 +2,13 @@ #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 */ diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h index ad6bc56a7aef..e713b8dc8587 100644 --- a/arch/xtensa/include/uapi/asm/mman.h +++ b/arch/xtensa/include/uapi/asm/mman.h @@ -11,19 +11,11 @@ * Copyright (C) 1995 by Ralf Baechle * Copyright (C) 2001 - 2005 Tensilica Inc. */ - #ifndef _XTENSA_MMAN_H #define _XTENSA_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 */ /* 0x8 reserved for arch-specific use */ #define PROT_SEM 0x10 /* page may be used for atomic ops */ -/* 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 */ @@ -54,62 +46,6 @@ #define MCL_FUTURE 2 /* lock all future mappings */ #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 - */ -#define MS_ASYNC 1 /* sync memory asynchronously */ -#define MS_INVALIDATE 2 /* invalidate the caches */ -#define MS_SYNC 4 /* synchronous memory sync */ - -#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 /* _XTENSA_MMAN_H */ diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h index 8d66d2dabaa8..2911dd14ef2a 100644 --- a/include/uapi/asm-generic/mman-common.h +++ b/include/uapi/asm-generic/mman-common.h @@ -10,7 +10,9 @@ #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 */