From: Andrey Konovalov <andreyknvl@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org, sparclinux@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Will Deacon <will.deacon@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Kees Cook <keescook@chromium.org>,
Yishai Hadas <yishaih@mellanox.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Christian Koenig <Christian.Koenig@amd.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Jens Wiklander <jens.wiklander@linaro.org>,
Alex Williamson <alex.williamson@redhat.com>,
Leon Romanovsky <leon@kernel.org>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
Dave Martin <Dave.Martin@arm.com>,
Khalid Aziz <khalid.aziz@oracle.com>, enh <enh@google.com>,
Jason Gunthorpe <jgg@ziepe.ca>,
Christoph Hellwig <hch@infradead.org>,
Dmitry Vyukov <dvyukov@google.com>,
Kostya Serebryany <kcc@google.com>,
Evgeniy Stepanov <eugenis@google.com>,
Lee Smith <Lee.Smith@arm.com>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Robin Murphy <robin.murphy@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Andrey Konovalov <andreyknvl@google.com>
Subject: [PATCH] uaccess: add noop untagged_addr definition
Date: Tue, 4 Jun 2019 13:44:45 +0200 [thread overview]
Message-ID: <8ab5cd1813b0890f8780018e9784838456ace49e.1559648669.git.andreyknvl@google.com> (raw)
Architectures that support memory tagging have a need to perform untagging
(stripping the tag) in various parts of the kernel. This patch adds an
untagged_addr() macro, which is defined as noop for architectures that do
not support memory tagging. The oncoming patch series will define it at
least for sparc64 and arm64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0e8834ac32b7..949d43e9c0b6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -99,6 +99,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#include <asm/pgtable.h>
#include <asm/processor.h>
+#ifndef untagged_addr
+#define untagged_addr(addr) (addr)
+#endif
+
#ifndef __pa_symbol
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
--
2.22.0.rc1.311.g5d7573a151-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org, sparclinux@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Kostya Serebryany <kcc@google.com>,
Khalid Aziz <khalid.aziz@oracle.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>, Dave Martin <Dave.Martin@arm.com>,
Evgeniy Stepanov <eugenis@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Dmitry Vyukov <dvyukov@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yishai Hadas <yishaih@mellanox.com>,
Jens Wiklander <jens.wiklander@linaro.org>,
Lee Smith <Lee.Smith@arm.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Andrew Morton <akpm@linux-foundation.org>, enh <enh@google.com>,
Robin Murphy <robin.murphy@arm.com>,
Christian Koenig <Christian.Koenig@amd.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH] uaccess: add noop untagged_addr definition
Date: Tue, 04 Jun 2019 11:44:45 +0000 [thread overview]
Message-ID: <8ab5cd1813b0890f8780018e9784838456ace49e.1559648669.git.andreyknvl@google.com> (raw)
Architectures that support memory tagging have a need to perform untagging
(stripping the tag) in various parts of the kernel. This patch adds an
untagged_addr() macro, which is defined as noop for architectures that do
not support memory tagging. The oncoming patch series will define it at
least for sparc64 and arm64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0e8834ac32b7..949d43e9c0b6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -99,6 +99,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#include <asm/pgtable.h>
#include <asm/processor.h>
+#ifndef untagged_addr
+#define untagged_addr(addr) (addr)
+#endif
+
#ifndef __pa_symbol
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
--
2.22.0.rc1.311.g5d7573a151-goog
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Konovalov <andreyknvl@google.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org,
sparclinux@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Kostya Serebryany <kcc@google.com>,
Khalid Aziz <khalid.aziz@oracle.com>,
Felix Kuehling <Felix.Kuehling@amd.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Leon Romanovsky <leon@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>, Dave Martin <Dave.Martin@arm.com>,
Evgeniy Stepanov <eugenis@google.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
Kees Cook <keescook@chromium.org>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Andrey Konovalov <andreyknvl@google.com>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Dmitry Vyukov <dvyukov@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Yishai Hadas <yishaih@mellanox.com>,
Jens Wiklander <jens.wiklander@linaro.org>,
Lee Smith <Lee.Smith@arm.com>,
Alexander Deucher <Alexander.Deucher@amd.com>,
Andrew Morton <akpm@linux-foundation.org>, enh <enh@google.com>,
Robin Murphy <robin.murphy@arm.com>,
Christian Koenig <Christian.Koenig@amd.com>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Subject: [PATCH] uaccess: add noop untagged_addr definition
Date: Tue, 4 Jun 2019 13:44:45 +0200 [thread overview]
Message-ID: <8ab5cd1813b0890f8780018e9784838456ace49e.1559648669.git.andreyknvl@google.com> (raw)
Architectures that support memory tagging have a need to perform untagging
(stripping the tag) in various parts of the kernel. This patch adds an
untagged_addr() macro, which is defined as noop for architectures that do
not support memory tagging. The oncoming patch series will define it at
least for sparc64 and arm64.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
---
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0e8834ac32b7..949d43e9c0b6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -99,6 +99,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#include <asm/pgtable.h>
#include <asm/processor.h>
+#ifndef untagged_addr
+#define untagged_addr(addr) (addr)
+#endif
+
#ifndef __pa_symbol
#define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0))
#endif
--
2.22.0.rc1.311.g5d7573a151-goog
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next reply other threads:[~2019-06-04 11:44 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 11:44 Andrey Konovalov [this message]
2019-06-04 11:44 ` [PATCH] uaccess: add noop untagged_addr definition Andrey Konovalov
2019-06-04 11:44 ` Andrey Konovalov
2019-06-04 11:44 ` Andrey Konovalov
2019-06-04 11:46 ` Koenig, Christian
2019-06-04 11:46 ` Koenig, Christian
2019-06-04 11:46 ` Koenig, Christian
2019-06-04 11:46 ` Koenig, Christian
2019-06-04 11:48 ` Andrey Konovalov
2019-06-04 11:48 ` Andrey Konovalov
2019-06-04 11:48 ` Andrey Konovalov
2019-06-04 11:48 ` Andrey Konovalov
2019-06-04 11:49 ` Koenig, Christian
2019-06-04 11:49 ` Koenig, Christian
2019-06-04 11:49 ` Koenig, Christian
2019-06-04 11:49 ` Koenig, Christian
2019-06-04 12:05 ` Andrey Konovalov
2019-06-04 12:05 ` Andrey Konovalov
2019-06-04 12:05 ` Andrey Konovalov
2019-06-04 12:05 ` Andrey Konovalov
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