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GET /api/patches/112120/?format=api
{ "id": 112120, "url": "http://patches.dpdk.org/api/patches/112120/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20220531100245.542300-6-zhoumin@loongson.cn/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20220531100245.542300-6-zhoumin@loongson.cn>", "list_archive_url": "https://inbox.dpdk.org/dev/20220531100245.542300-6-zhoumin@loongson.cn", "date": "2022-05-31T10:02:26", "name": "[v2,05/24] eal/loongarch: add spinlock operations for LoongArch", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "65573417f2fb1d12bb39627383d4bb7d9bf4a76b", "submitter": { "id": 2394, "url": "http://patches.dpdk.org/api/people/2394/?format=api", "name": "zhoumin", "email": "zhoumin@loongson.cn" }, "delegate": { "id": 24651, "url": "http://patches.dpdk.org/api/users/24651/?format=api", "username": "dmarchand", "first_name": "David", "last_name": "Marchand", "email": "david.marchand@redhat.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20220531100245.542300-6-zhoumin@loongson.cn/mbox/", "series": [ { "id": 23262, "url": "http://patches.dpdk.org/api/series/23262/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=23262", "date": "2022-05-31T10:02:32", "name": "Support LoongArch architecture", "version": 2, "mbox": "http://patches.dpdk.org/series/23262/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/112120/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/112120/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id A4D7AA0542;\n\tTue, 31 May 2022 12:03:24 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 8FA22427F2;\n\tTue, 31 May 2022 12:03:15 +0200 (CEST)", "from loongson.cn (mail.loongson.cn [114.242.206.163])\n by mails.dpdk.org (Postfix) with ESMTP id 2EAC44067B\n for <dev@dpdk.org>; Tue, 31 May 2022 12:03:11 +0200 (CEST)", "from localhost.localdomain (unknown [10.2.5.185])\n by mail.loongson.cn (Coremail) with SMTP id AQAAf9Dx307F55Vi1qUJAA--.589S7;\n Tue, 31 May 2022 18:02:53 +0800 (CST)" ], "From": "Min Zhou <zhoumin@loongson.cn>", "To": "thomas@monjalon.net, david.marchand@redhat.com,\n bruce.richardson@intel.com,\n anatoly.burakov@intel.com, qiming.yang@intel.com, Yuying.Zhang@intel.com,\n jgrajcia@cisco.com, konstantin.v.ananyev@yandex.ru", "Cc": "dev@dpdk.org,\n\tmaobibo@loongson.cn", "Subject": "[v2 05/24] eal/loongarch: add spinlock operations for LoongArch", "Date": "Tue, 31 May 2022 18:02:26 +0800", "Message-Id": "<20220531100245.542300-6-zhoumin@loongson.cn>", "X-Mailer": "git-send-email 2.31.1", "In-Reply-To": "<20220531100245.542300-1-zhoumin@loongson.cn>", "References": "<20220531100245.542300-1-zhoumin@loongson.cn>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-CM-TRANSID": "AQAAf9Dx307F55Vi1qUJAA--.589S7", "X-Coremail-Antispam": "1UD129KBjvJXoWxArWkGFy7Wr48tr43Kr43Awb_yoW5Gw1kpr\n W3CrnxJa1xXF1I9FZxJF4qqr45Jwsakr47JrZxWr1xtFWxW3sxKw4kXr90v3W0q347tFyD\n JFs0vrs8GFW7G3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU==", "X-CM-SenderInfo": "52kr3ztlq6z05rqj20fqof0/", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "This patch adds spinlock operations for LoongArch architecture.\nThese implementations are based on standard atomics of toolchain\nand heavily reference generic spinlock codes.\n\nSigned-off-by: Min Zhou <zhoumin@loongson.cn>\n---\n lib/eal/loongarch/include/rte_spinlock.h | 90 ++++++++++++++++++++++++\n 1 file changed, 90 insertions(+)\n create mode 100644 lib/eal/loongarch/include/rte_spinlock.h", "diff": "diff --git a/lib/eal/loongarch/include/rte_spinlock.h b/lib/eal/loongarch/include/rte_spinlock.h\nnew file mode 100644\nindex 0000000000..9ad46a3c91\n--- /dev/null\n+++ b/lib/eal/loongarch/include/rte_spinlock.h\n@@ -0,0 +1,90 @@\n+/* SPDX-License-Identifier: BSD-3-Clause\n+ * Copyright(c) 2022 Loongson Technology Corporation Limited\n+ */\n+\n+#ifndef _RTE_SPINLOCK_LOONGARCH_H_\n+#define _RTE_SPINLOCK_LOONGARCH_H_\n+\n+#ifdef __cplusplus\n+extern \"C\" {\n+#endif\n+\n+#include <rte_common.h>\n+#include \"generic/rte_spinlock.h\"\n+\n+#ifndef RTE_FORCE_INTRINSICS\n+static inline void\n+rte_spinlock_lock(rte_spinlock_t *sl)\n+{\n+\tint exp = 0;\n+\n+\twhile (!__atomic_compare_exchange_n(&sl->locked, &exp, 1, 0,\n+\t\t\t\t__ATOMIC_ACQUIRE, __ATOMIC_RELAXED)) {\n+\t\trte_wait_until_equal_32((volatile uint32_t *)&sl->locked,\n+\t\t\t 0, __ATOMIC_RELAXED);\n+\t\texp = 0;\n+\t}\n+}\n+\n+static inline void\n+rte_spinlock_unlock(rte_spinlock_t *sl)\n+{\n+\t__atomic_store_n(&sl->locked, 0, __ATOMIC_RELEASE);\n+}\n+\n+static inline int\n+rte_spinlock_trylock(rte_spinlock_t *sl)\n+{\n+\tint exp = 0;\n+\treturn __atomic_compare_exchange_n(&sl->locked, &exp, 1,\n+\t\t\t\t0, /* disallow spurious failure */\n+\t\t\t\t__ATOMIC_ACQUIRE, __ATOMIC_RELAXED);\n+}\n+#endif\n+\n+static inline int rte_tm_supported(void)\n+{\n+\treturn 0;\n+}\n+\n+static inline void\n+rte_spinlock_lock_tm(rte_spinlock_t *sl)\n+{\n+\trte_spinlock_lock(sl); /* fall-back */\n+}\n+\n+static inline int\n+rte_spinlock_trylock_tm(rte_spinlock_t *sl)\n+{\n+\treturn rte_spinlock_trylock(sl);\n+}\n+\n+static inline void\n+rte_spinlock_unlock_tm(rte_spinlock_t *sl)\n+{\n+\trte_spinlock_unlock(sl);\n+}\n+\n+static inline void\n+rte_spinlock_recursive_lock_tm(rte_spinlock_recursive_t *slr)\n+{\n+\trte_spinlock_recursive_lock(slr); /* fall-back */\n+}\n+\n+static inline void\n+rte_spinlock_recursive_unlock_tm(rte_spinlock_recursive_t *slr)\n+{\n+\trte_spinlock_recursive_unlock(slr);\n+}\n+\n+static inline int\n+rte_spinlock_recursive_trylock_tm(rte_spinlock_recursive_t *slr)\n+{\n+\treturn rte_spinlock_recursive_trylock(slr);\n+}\n+\n+#ifdef __cplusplus\n+}\n+#endif\n+\n+#endif /* _RTE_SPINLOCK_LOONGARCH_H_ */\n", "prefixes": [ "v2", "05/24" ] }