Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/805264/?format=api
{ "id": 805264, "url": "http://patchwork.ozlabs.org/api/patches/805264/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1503556688-15412-7-git-send-email-sukadev@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<1503556688-15412-7-git-send-email-sukadev@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/1503556688-15412-7-git-send-email-sukadev@linux.vnet.ibm.com/", "date": "2017-08-24T06:38:02", "name": "[v7,06/12] powerpc/vas: Define helpers to alloc/free windows", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "ede5abdcbf20ac779da127700f2d317dccb278e4", "submitter": { "id": 984, "url": "http://patchwork.ozlabs.org/api/people/984/?format=api", "name": "Sukadev Bhattiprolu", "email": "sukadev@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1503556688-15412-7-git-send-email-sukadev@linux.vnet.ibm.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/805264/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/805264/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org", "linuxppc-dev@ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xdFK94PTTz9ryk\n\tfor <patchwork-incoming@ozlabs.org>;\n\tThu, 24 Aug 2017 16:49:49 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xdFK93Vp8zDrYX\n\tfor <patchwork-incoming@ozlabs.org>;\n\tThu, 24 Aug 2017 16:49:49 +1000 (AEST)", "from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xdF4C0fDRzDrK8\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tThu, 24 Aug 2017 16:38:35 +1000 (AEST)", "from ozlabs.org (ozlabs.org [IPv6:2401:3900:2:1::2])\n\tby bilbo.ozlabs.org (Postfix) with ESMTP id 3xdF4B4sdMz8w2H\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tThu, 24 Aug 2017 16:38:34 +1000 (AEST)", "by ozlabs.org (Postfix)\n\tid 3xdF4B3scXz9t3H; Thu, 24 Aug 2017 16:38:34 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xdF495vR1z9t3f\n\tfor <linuxppc-dev@ozlabs.org>; Thu, 24 Aug 2017 16:38:33 +1000 (AEST)", "from pps.filterd (m0098421.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv7O6bMbC052896\n\tfor <linuxppc-dev@ozlabs.org>; Thu, 24 Aug 2017 02:38:31 -0400", "from e11.ny.us.ibm.com (e11.ny.us.ibm.com [129.33.205.201])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2chspjr2km-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@ozlabs.org>; Thu, 24 Aug 2017 02:38:31 -0400", "from localhost\n\tby e11.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@ozlabs.org> from <sukadev@linux.vnet.ibm.com>;\n\tThu, 24 Aug 2017 02:38:31 -0400", "from b01cxnp23034.gho.pok.ibm.com (9.57.198.29)\n\tby e11.ny.us.ibm.com (146.89.104.198) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tThu, 24 Aug 2017 02:38:27 -0400", "from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com\n\t[9.57.199.107])\n\tby b01cxnp23034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP\n\tid v7O6cRcb26149014; Thu, 24 Aug 2017 06:38:27 GMT", "from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id C8AE9124037;\n\tThu, 24 Aug 2017 02:35:47 -0400 (EDT)", "from suka-w540.usor.ibm.com (unknown [9.70.94.25])\n\tby b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id EFB01124035;\n\tThu, 24 Aug 2017 02:35:46 -0400 (EDT)" ], "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com\n\t(client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=sukadev@linux.vnet.ibm.com; receiver=<UNKNOWN>)", "From": "Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>", "To": "Michael Ellerman <mpe@ellerman.id.au>", "Subject": "[PATCH v7 06/12] powerpc/vas: Define helpers to alloc/free windows", "Date": "Wed, 23 Aug 2017 23:38:02 -0700", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1503556688-15412-1-git-send-email-sukadev@linux.vnet.ibm.com>", "References": "<1503556688-15412-1-git-send-email-sukadev@linux.vnet.ibm.com>", "X-TM-AS-GCONF": "00", "x-cbid": "17082406-2213-0000-0000-0000020E9246", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00007601; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000224; SDB=6.00906836; UDB=6.00454554;\n\tIPR=6.00687034; \n\tBA=6.00005550; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016840;\n\tXFM=3.00000015; UTC=2017-08-24 06:38:29", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17082406-2214-0000-0000-00005751D6E0", "Message-Id": "<1503556688-15412-7-git-send-email-sukadev@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-24_03:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=2\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1708240106", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "stewart@linux.vnet.ibm.com, mikey@neuling.org, linuxppc-dev@ozlabs.org, \n\tlinux-kernel@vger.kernel.org, apopple@au1.ibm.com, oohall@gmail.com", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "Define helpers to allocate/free VAS window objects. These will\nbe used in follow-on patches when opening/closing windows.\n\nSigned-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>\n---\n arch/powerpc/platforms/powernv/vas-window.c | 70 +++++++++++++++++++++++++++++\n 1 file changed, 70 insertions(+)", "diff": "diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c\nindex 3a50d6a..9c12919 100644\n--- a/arch/powerpc/platforms/powernv/vas-window.c\n+++ b/arch/powerpc/platforms/powernv/vas-window.c\n@@ -490,6 +490,76 @@ int init_winctx_regs(struct vas_window *window, struct vas_winctx *winctx)\n \treturn 0;\n }\n \n+DEFINE_SPINLOCK(vas_ida_lock);\n+\n+void vas_release_window_id(struct ida *ida, int winid)\n+{\n+\tspin_lock(&vas_ida_lock);\n+\tida_remove(ida, winid);\n+\tspin_unlock(&vas_ida_lock);\n+}\n+\n+int vas_assign_window_id(struct ida *ida)\n+{\n+\tint rc, winid;\n+\n+\trc = ida_pre_get(ida, GFP_KERNEL);\n+\tif (!rc)\n+\t\treturn -EAGAIN;\n+\n+\tspin_lock(&vas_ida_lock);\n+\trc = ida_get_new_above(ida, 0, &winid);\n+\tspin_unlock(&vas_ida_lock);\n+\n+\tif (rc)\n+\t\treturn rc;\n+\n+\tif (winid > VAS_WINDOWS_PER_CHIP) {\n+\t\tpr_err(\"VAS: Too many (%d) open windows\\n\", winid);\n+\t\tvas_release_window_id(ida, winid);\n+\t\treturn -EAGAIN;\n+\t}\n+\n+\treturn winid;\n+}\n+\n+void vas_window_free(struct vas_window *window)\n+{\n+\tint winid = window->winid;\n+\tstruct vas_instance *vinst = window->vinst;\n+\n+\tunmap_winctx_mmio_bars(window);\n+\tkfree(window);\n+\n+\tvas_release_window_id(&vinst->ida, winid);\n+}\n+\n+struct vas_window *vas_window_alloc(struct vas_instance *vinst)\n+{\n+\tint winid;\n+\tstruct vas_window *window;\n+\n+\twinid = vas_assign_window_id(&vinst->ida);\n+\tif (winid < 0)\n+\t\treturn ERR_PTR(winid);\n+\n+\twindow = kzalloc(sizeof(*window), GFP_KERNEL);\n+\tif (!window)\n+\t\treturn ERR_PTR(-ENOMEM);\n+\n+\twindow->vinst = vinst;\n+\twindow->winid = winid;\n+\n+\tif (map_winctx_mmio_bars(window))\n+\t\tgoto out_free;\n+\n+\treturn window;\n+\n+out_free:\n+\tkfree(window);\n+\treturn ERR_PTR(-ENOMEM);\n+}\n+\n /* stub for now */\n int vas_win_close(struct vas_window *window)\n {\n", "prefixes": [ "v7", "06/12" ] }