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Miller" , Eric Dumazet , Gerald Schaefer , Vasily Gorbik , Heiko Carstens , "H. Peter Anvin" , Justin Stitt , Jakub Kicinski , Leon Romanovsky , linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, llvm@lists.linux.dev, Ingo Molnar , Bill Wendling , Nathan Chancellor , Nick Desaulniers , netdev@vger.kernel.org, Paolo Abeni , Salil Mehta , Sven Schnelle , Thomas Gleixner , x86@kernel.org, Yisen Zhuang Cc: Arnd Bergmann , Catalin Marinas , Leon Romanovsky , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mark Rutland , Michael Guralnik , patches@lists.linux.dev, Niklas Schnelle , Jijie Shao , Will Deacon Subject: [PATCH v3 2/6] s390: Implement __iowrite32_copy() Date: Thu, 11 Apr 2024 13:46:15 -0300 Message-ID: <2-v3-1893cd8b9369+1925-mlx5_arm_wc_jgg@nvidia.com> In-Reply-To: <0-v3-1893cd8b9369+1925-mlx5_arm_wc_jgg@nvidia.com> References: X-ClientProxiedBy: BL1PR13CA0264.namprd13.prod.outlook.com (2603:10b6:208:2ba::29) To DM6PR12MB3849.namprd12.prod.outlook.com (2603:10b6:5:1c7::26) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR12MB3849:EE_|SJ2PR12MB8064:EE_ X-MS-Office365-Filtering-Correlation-Id: 276b625d-16cd-4755-020a-08dc5a46eaa5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM6PR12MB3849.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(1800799015)(376005)(7416005)(366007)(921011);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: i7lXgCdif+kwxcoaKncQ+KlIN8n2nlbjbUAok+EWcO2iMQ2pnaCZQ2UfQ1RRjSwdhNfo/0pzuS0DsmEzPVUjGYMZBqB2EoiKxAv/c9GD5/BuqXjrUg8ZILas0S8cdPZ8N/Q7TCZg0i/eWn9RH7xMWvEDlXQTTE0Xu19Ly5EuXdDQglVaxgt2M+gbYmqMcIC1blUkC+qq4HsvGKLBHMNvzRSSO2zQQnXkZqhE/SXCVU4IWddCGYy7pvJoNvr6kfbcE2vkH1NE65Wc7ITGr/afjVLIv6DQa7x07uHs38F6PGXFiY/74aQN+6ngLE4is98hPOPzYmxePcWz2y3sFjRIVJhCxIZbv4RwU+YJvhnxs97HeYco07X1tId3qVGQ2jBHx5vFN0648MKo9EKFX6hmDeZHsRJWfRZiEL3IfzihHdTGhSAoTSqEYi3wND71PFk4WGLYo8gr1S/sWPMW/CTwR/GF1uVG+SFUJuuTHILx5tGM7HYCm9llJdE6023F1TwIZCDP1+3GiTzSO4R555vrqH81sxHmDcEbt2Vjh5NPX30SD/3/13+DYxbsTs7CwDFn9SkFoqEGQ+ZUiAwmjb9IFce6cBKQb7CqG8Cy223EDDb4eyY5NQyPLN2ve91VCxepAExIUMfMXh9gLiuLDS3Psvo7p1OlgSMl+Csy7Dc1qfVc8SVsKfx9jzUewKLvCQ70MFO8nXbosbFTFLLXv/TjQ4CTDiBtBb+NrA+Ob8qiP5mtLxMcXIiLsOrylgukEEDTMZrygEvjoEBsm1f9h8PU+WfxkuxqQNnooDTdbXaH7Yp9IKxYRpwVwoPdnrcYDZeKQAcFPo7++5jZ3VoH5VSkKd8dNOVfNrYxtkfkvnmbsSTSToSTNdx4U/ywgk7qp23iXIYSCO3arvDtU/oJxcKC6u0F8dZSA2S25+UgeGzzXvrUykwKvMMRSSDrf3mJeEZ8iBG7Pb3LK8XaCsOP5yeu0rRQf5fDno6aifBwX4jXAqk1e1/XoRNJGVOwm8erCnCkfaMJKLSLb165pJqV6uPRoL3iInInGRVOvAYhFxJI+BfCOM7itXJ46K2fVQmGgyJuCkVZmAOX6C6tW2B8i3oMSCa7qB9qHsnYWOrFDdoSlPdwtNp7bifPta3rPNGV8MgnGHciidR3vuG3SR3GGuPkLVJww5CVl4/iJwftppzkT7kFDv9Ux90/YdygJV1aatUm7qQVhRRFiSev3XdIjDgMLvVbZCg+kRwKPTFhL4sGdx+DNYEh1+1+lexuYqfLiIApJfT5oIGS1Xtm+shl2pCLzgbf85Hvd19LUofqaSXrIRGSN/Y/QxPe2c8tyIJd/rBYidVr7KVv8XZzKF3lseps4szrTm5xy1aeOtXkHNwiYlLF/RTemPzGnXvCt2BiefnnYs2Vniz2jCWU66Sq/Eke9roNoXVS3WJDNxxkt784rY7VisCpZpciNIWIPpqupjx/fNcSQjiK+Dj/yKT/En7N7lvQQUagRpWabOEnpcufAJp1nhb4ICHnE6SnMCMxj6UvXYD+Tiv8CfGRLk/QgmVDkXNNMKX9oLu4Zg+m2X1lTBif5ZRhlpgYPtAx6vN3ToPJ X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 276b625d-16cd-4755-020a-08dc5a46eaa5 X-MS-Exchange-CrossTenant-AuthSource: DM6PR12MB3849.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Apr 2024 16:46:21.1873 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: sDOJi1NGltfsyrIP6cojeXtmR+KV8RlY70GOwHhCZSJ+GUNVihQTNT/ZLw+OG12O X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB8064 It is trivial to implement an inline to do this, so provide it in the s390 headers. Like the 64 bit version it should just invoke zpci_memcpy_toio() with the correct size. Acked-by: Niklas Schnelle Signed-off-by: Jason Gunthorpe --- arch/s390/include/asm/io.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 4453ad7c11aced..00704fc8a54b30 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -73,6 +73,14 @@ static inline void ioport_unmap(void __iomem *p) #define __raw_writel zpci_write_u32 #define __raw_writeq zpci_write_u64 +/* combine single writes by using store-block insn */ +static inline void __iowrite32_copy(void __iomem *to, const void *from, + size_t count) +{ + zpci_memcpy_toio(to, from, count * 4); +} +#define __iowrite32_copy __iowrite32_copy + #endif /* CONFIG_PCI */ #include