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Wed, 20 Oct 2021 17:05:29 +0000 From: Ankur Arora To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Cc: mingo@kernel.org, bp@alien8.de, luto@kernel.org, akpm@linux-foundation.org, mike.kravetz@oracle.com, jon.grimm@amd.com, kvm@vger.kernel.org, konrad.wilk@oracle.com, boris.ostrovsky@oracle.com, Ankur Arora Subject: [PATCH v2 06/14] sparse: add address_space __incoherent Date: Wed, 20 Oct 2021 10:02:57 -0700 Message-Id: <20211020170305.376118-7-ankur.a.arora@oracle.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20211020170305.376118-1-ankur.a.arora@oracle.com> References: <20211020170305.376118-1-ankur.a.arora@oracle.com> X-ClientProxiedBy: MW4PR03CA0120.namprd03.prod.outlook.com (2603:10b6:303:b7::35) To CO6PR10MB5409.namprd10.prod.outlook.com (2603:10b6:5:357::14) MIME-Version: 1.0 Received: from localhost (148.87.23.11) by MW4PR03CA0120.namprd03.prod.outlook.com (2603:10b6:303:b7::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4628.16 via Frontend Transport; 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Add sparse address_space __incoherent to denote pointers used to operate over these regions. Signed-off-by: Ankur Arora --- include/linux/compiler_types.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index b6ff83a714ca..f7f68d7bc494 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -11,6 +11,7 @@ # define __iomem __attribute__((noderef, address_space(__iomem))) # define __percpu __attribute__((noderef, address_space(__percpu))) # define __rcu __attribute__((noderef, address_space(__rcu))) +# define __incoherent __attribute__((noderef, address_space(__incoherent))) static inline void __chk_user_ptr(const volatile void __user *ptr) { } static inline void __chk_io_ptr(const volatile void __iomem *ptr) { } /* context/locking */ @@ -37,6 +38,7 @@ static inline void __chk_io_ptr(const volatile void __iomem *ptr) { } # define __iomem # define __percpu # define __rcu +# define __incoherent # define __chk_user_ptr(x) (void)0 # define __chk_io_ptr(x) (void)0 /* context/locking */