From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753980AbdKHC1G (ORCPT ); Tue, 7 Nov 2017 21:27:06 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:49022 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753057AbdKHCYO (ORCPT ); Tue, 7 Nov 2017 21:24:14 -0500 From: Sukadev Bhattiprolu To: Michael Ellerman Cc: Benjamin Herrenschmidt , mikey@neuling.org, hbabu@us.ibm.com, nicholas.piggin@gmail.com, linuxppc-dev@ozlabs.org, Subject: [PATCH v3 07/18] powerpc/vas: Save configured window credits Date: Tue, 7 Nov 2017 18:23:47 -0800 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1510107838-15181-1-git-send-email-sukadev@linux.vnet.ibm.com> References: <1510107838-15181-1-git-send-email-sukadev@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17110802-0012-0000-0000-00001542ABF8 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008029; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000239; SDB=6.00942691; UDB=6.00475552; IPR=6.00722979; BA=6.00005677; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017903; XFM=3.00000015; UTC=2017-11-08 02:24:12 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17110802-0013-0000-0000-0000502E302C Message-Id: <1510107838-15181-8-git-send-email-sukadev@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-07_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1711080027 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Save the configured max window credits for a window in the vas_window structure. We will need this when polling for return of window credits. Signed-off-by: Sukadev Bhattiprolu --- arch/powerpc/platforms/powernv/vas-window.c | 6 ++++-- arch/powerpc/platforms/powernv/vas.h | 1 + 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c index 1422cdd..a59a187 100644 --- a/arch/powerpc/platforms/powernv/vas-window.c +++ b/arch/powerpc/platforms/powernv/vas-window.c @@ -674,7 +674,7 @@ static void init_winctx_for_rxwin(struct vas_window *rxwin, winctx->rx_fifo = rxattr->rx_fifo; winctx->rx_fifo_size = rxattr->rx_fifo_size; - winctx->wcreds_max = rxattr->wcreds_max ?: VAS_WCREDS_DEFAULT; + winctx->wcreds_max = rxwin->wcreds_max; winctx->pin_win = rxattr->pin_win; winctx->nx_win = rxattr->nx_win; @@ -844,6 +844,7 @@ struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop, rxwin->nx_win = rxattr->nx_win; rxwin->user_win = rxattr->user_win; rxwin->cop = cop; + rxwin->wcreds_max = rxattr->wcreds_max ?: VAS_WCREDS_DEFAULT; if (rxattr->user_win) rxwin->pid = task_pid_vnr(current); @@ -893,7 +894,7 @@ static void init_winctx_for_txwin(struct vas_window *txwin, */ memset(winctx, 0, sizeof(struct vas_winctx)); - winctx->wcreds_max = txattr->wcreds_max ?: VAS_WCREDS_DEFAULT; + winctx->wcreds_max = txwin->wcreds_max; winctx->user_win = txattr->user_win; winctx->nx_win = txwin->rxwin->nx_win; @@ -978,6 +979,7 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, txwin->nx_win = txwin->rxwin->nx_win; txwin->pid = attr->pid; txwin->user_win = attr->user_win; + txwin->wcreds_max = attr->wcreds_max ?: VAS_WCREDS_DEFAULT; init_winctx_for_txwin(txwin, attr, &winctx); diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h index 63e8e03..02d8a31 100644 --- a/arch/powerpc/platforms/powernv/vas.h +++ b/arch/powerpc/platforms/powernv/vas.h @@ -332,6 +332,7 @@ struct vas_window { void *hvwc_map; /* HV window context */ void *uwc_map; /* OS/User window context */ pid_t pid; /* Linux process id of owner */ + int wcreds_max; /* Window credits */ /* Fields applicable only to send windows */ void *paste_kaddr; -- 2.7.4