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Mon, 7 Dec 2020 21:52:17 +0000 (GMT) From: Nathan Lynch To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 22/28] powerpc/pseries/hibernation: switch to rtas_ibm_suspend_me() Date: Mon, 7 Dec 2020 15:51:54 -0600 Message-Id: <20201207215200.1785968-23-nathanl@linux.ibm.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201207215200.1785968-1-nathanl@linux.ibm.com> References: <20201207215200.1785968-1-nathanl@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2020-12-07_16:2020-12-04, 2020-12-07 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 impostorscore=0 mlxlogscore=954 lowpriorityscore=0 phishscore=0 priorityscore=1501 adultscore=0 mlxscore=0 bulkscore=0 suspectscore=1 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012070132 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tyreld@linux.ibm.com, ajd@linux.ibm.com, mmc@linux.vnet.ibm.com, cforno12@linux.vnet.ibm.com, drt@linux.vnet.ibm.com, brking@linux.ibm.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" rtas_suspend_last_cpu() and related code perform a lot of work that isn't relevant to the hibernation workflow. All other CPUs are offline when called so there is no need to place them in H_JOIN or prod them on resume, nor is there need for retries or operations on shared state. Call the rtas_ibm_suspend_me() wrapper function directly from pseries_suspend_enter() instead of using rtas_suspend_last_cpu(). Signed-off-by: Nathan Lynch --- arch/powerpc/platforms/pseries/suspend.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c index 3315d698d5ab..703728cb95ec 100644 --- a/arch/powerpc/platforms/pseries/suspend.c +++ b/arch/powerpc/platforms/pseries/suspend.c @@ -76,11 +76,7 @@ static void pseries_suspend_enable_irqs(void) **/ static int pseries_suspend_enter(suspend_state_t state) { - int rc = rtas_suspend_last_cpu(&suspend_data); - - atomic_set(&suspending, 0); - atomic_set(&suspend_data.done, 1); - return rc; + return rtas_ibm_suspend_me(NULL); } /** -- 2.28.0