| Message ID | 1541508028-31865-12-git-send-email-leitao@debian.org (mailing list archive) |
|---|---|
| State | RFC |
| Headers | show
Return-Path: <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42q95B08fRz9sCs for <patchwork-incoming@ozlabs.org>; Wed, 7 Nov 2018 00:15:10 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=debian.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 42q9595ZyFzF3DX for <patchwork-incoming@ozlabs.org>; Wed, 7 Nov 2018 00:15:09 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=debian.org X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=debian.org (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=leitao@debian.org; receiver=<UNKNOWN>) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=debian.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 42q8Kp6fb3zF3BG for <linuxppc-dev@lists.ozlabs.org>; Tue, 6 Nov 2018 23:41:02 +1100 (AEDT) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wA6CYUgQ036225 for <linuxppc-dev@lists.ozlabs.org>; Tue, 6 Nov 2018 07:40:59 -0500 Received: from e14.ny.us.ibm.com (e14.ny.us.ibm.com [129.33.205.204]) by mx0a-001b2d01.pphosted.com with ESMTP id 2nkagw1su8-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for <linuxppc-dev@lists.ozlabs.org>; Tue, 06 Nov 2018 07:40:59 -0500 Received: from localhost by e14.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 6 Nov 2018 12:40:55 -0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wA6Cesb32031982 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 6 Nov 2018 12:40:54 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7638FAC05E; Tue, 6 Nov 2018 12:40:54 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 33859AC059; Tue, 6 Nov 2018 12:40:53 +0000 (GMT) Received: from debra.ibm.com (unknown [9.18.239.97]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 6 Nov 2018 12:40:53 +0000 (GMT) From: Breno Leitao <leitao@debian.org> To: linuxppc-dev@lists.ozlabs.org Subject: [RFC PATCH 11/14] powerpc/tm: Save MSR to PACA before RFID Date: Tue, 6 Nov 2018 10:40:25 -0200 X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1541508028-31865-1-git-send-email-leitao@debian.org> References: <1541508028-31865-1-git-send-email-leitao@debian.org> X-TM-AS-GCONF: 00 x-cbid: 18110612-0052-0000-0000-00000351212C X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009996; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000268; SDB=6.01113483; UDB=6.00577209; IPR=6.00893582; MB=3.00024045; MTD=3.00000008; XFM=3.00000015; UTC=2018-11-06 12:40:56 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18110612-0053-0000-0000-00005EAC23D5 Message-Id: <1541508028-31865-12-git-send-email-leitao@debian.org> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-11-06_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=522 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1811060112 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org> List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>, <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>, <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe> Cc: mikey@neuling.org, gromero@linux.vnet.ibm.com, Breno Leitao <leitao@debian.org>, ldufour@linux.vnet.ibm.com, cyrilbur@gmail.com Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" <linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org> |
| Series |
New TM Model
|
expand
|
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/apply_patch | success | next/apply_patch Successfully applied |
| snowpatch_ozlabs/checkpatch | success | Test checkpatch on branch next |
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index a86619edf29d..19e460b893e8 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -296,6 +296,10 @@ BEGIN_FTR_SECTION HMT_MEDIUM_LOW END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM + std r8, PACATMSCRATCH(r13) +#endif + ld r13,GPR13(r1) /* only restore r13 if returning to usermode */ ld r2,GPR2(r1) ld r1,GPR1(r1)
As other exit points, move SRR1 (MSR) into paca->tm_scratch, so, if there is a TM Bad Thing in RFID, it is easy to understand what was the SRR1 value being used. Signed-off-by: Breno Leitao <leitao@debian.org> --- arch/powerpc/kernel/entry_64.S | 4 ++++ 1 file changed, 4 insertions(+)