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Wed, 9 Dec 2020 08:14:11 +0000 From: "Peng Fan (OSS)" To: mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, catalin.marinas@arm.com, will@kernel.org, maz@kernel.org Cc: linux-kernel@vger.kernel.org, linux-imx@nxp.com, van.freenix@gmail.com, Peng Fan Subject: [PATCH 3/3] tools/virtio: add barrier for aarch64 Date: Wed, 9 Dec 2020 16:42:05 +0800 Message-Id: <20201209084205.24062-4-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201209084205.24062-1-peng.fan@oss.nxp.com> References: <20201209084205.24062-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [119.31.174.71] X-ClientProxiedBy: SG2PR01CA0122.apcprd01.prod.exchangelabs.com (2603:1096:4:40::26) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by SG2PR01CA0122.apcprd01.prod.exchangelabs.com (2603:1096:4:40::26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3654.12 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?VIuFCR9RkAMnYFGnKhlwhDi1CfZ/3+xnbWect67FvbaERkdYOws5cAMJOSV/?= =?us-ascii?Q?QLBu6X84nvossT/ZNSdKeVYbeC7S9Q0L9m0WSRe0uCmGR43LKzA7B/1x3ouU?= =?us-ascii?Q?olZwqi3Cy+Maqa+Itvvvgx5qPcD9luoci1rl2VsVk8oDBLO6rvJce0L8emWw?= =?us-ascii?Q?NTJj70BwfzsDsxxPAx+KIFi7zfO3tOCTSpwEa88WzbMtm0iJ1d1oEFPFRoff?= =?us-ascii?Q?G8EzLd5SVmFn0PTI5ntEDcrgIpj8s677wiarj+j5Bn+FkTZTcxSlYg7MTyU3?= =?us-ascii?Q?t8eMKLog0LpL1iKpoJDes7G254HQ7PVk+LykndunzXPpPraNd6GZkFzFUbdL?= =?us-ascii?Q?r2uCH5rX5MWla1jzBIEhlo213sPHZwh9gG+2iYJ1O4s2zW8iIe+AkBOw5UdJ?= =?us-ascii?Q?Kz/RfLCOimHDDYWG3dXeaqXP0qK7XfSfRV/nrXJxz93dwsr+3+DW259BvSxE?= =?us-ascii?Q?8Uy8lIu1Kyb7GqrnJX+xbQgiNiuYWQdhGmjlClxUP0Xwqiqyw0NkBjTObGRv?= =?us-ascii?Q?ekpYgWHSvm3VITg4osKBgsVNpk/5FCR/XN9orGI5iee49bHx3jkOcSxmcxNW?= =?us-ascii?Q?LUKkUO2DL8FRVG4nyZ8iVv4fdHAoOOzLbUYgZHi6KDwoFtlQXlWuGkYEU9ao?= =?us-ascii?Q?6IX7/WiTtgFDMupmpX4kdca2AJe6nOMJbE3+PAT8ZkccMSE7uuApd19CICSA?= =?us-ascii?Q?IDhO/oKRyJIK+reELaaBV8OVK7p4G0TlB+R3IUWCFH2wx6Qul/Qp91UKniVn?= =?us-ascii?Q?vqipbqeJhx2x74HbprutTtdNE0awGZgxAwxOxN7sF06fCOhGBhMfaQD+ant8?= =?us-ascii?Q?BeOwwkD28uVko7LWvvfnz/CcSIefHcblULdE6eeccZxXDD8aX9K6sjp52tgR?= =?us-ascii?Q?uB1q6g6XtG/LLCF0I20x5eUH2gbSsX4v5vFfjxRKLRsKyGXHBCvKT2CMWgA7?= =?us-ascii?Q?1mqKyy1G5WiFXZtrey7sSd4vSf28bTC/oNjJZ/D8q4W14wf5wntDnSDk1GEn?= =?us-ascii?Q?Bfxd?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-AuthSource: DB6PR0402MB2760.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Dec 2020 08:14:11.8247 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-Network-Message-Id: 59f36820-576d-48f4-4fbf-08d89c1a6914 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: VI5Y40jKiSaBUI4Z8CHrTbzk/s/6Ji+bzuuep5dm3M1T930HBvMlD4vjsLnUVzfQAsCuv674tqhksh8B+Kvt/g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR04MB7515 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peng Fan Add barrier for aarch64 for cross compiling, and most are from Linux Kernel. Signed-off-by: Peng Fan --- tools/virtio/asm/barrier.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/virtio/asm/barrier.h b/tools/virtio/asm/barrier.h index 04d563fc9b95..468435ed64e6 100644 --- a/tools/virtio/asm/barrier.h +++ b/tools/virtio/asm/barrier.h @@ -16,6 +16,16 @@ # define mb() abort() # define dma_rmb() abort() # define dma_wmb() abort() +#elif defined(__aarch64__) +#define dmb(opt) asm volatile("dmb " #opt : : : "memory") +#define virt_mb() __sync_synchronize() +#define virt_rmb() dmb(ishld) +#define virt_wmb() dmb(ishst) +#define virt_store_mb(var, value) do { WRITE_ONCE(var, value); dmb(ish); } while (0) +/* Weak barriers should be used. If not - it's a bug */ +# define mb() abort() +# define dma_rmb() abort() +# define dma_wmb() abort() #else #error Please fill in barrier macros #endif -- 2.28.0