From nobody Thu Nov 28 00:28:37 2024 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7A862744D; Mon, 7 Oct 2024 06:07:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728281265; cv=none; b=d8a2o28xNgGzqwm2s6GS/8YwI1JG4uSAkh6IkpjzJP30npOnKx1z9pwSdFZm9AIA85h5WDuJHCACQYy8brNVOUIUufC5cI7aTya6LHRxGgsyhZOMHbVeerfAHngC6TmXcqG4Yzjc0e/pBn+FndOCeByetLDNwziPTwukn4Dotek= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728281265; c=relaxed/simple; bh=aj3zl6u1lYeqGFapGSXt75jXRIhJSuMiKfjwnzRr2rE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=cn4V2+X7aqJutXaS3UROHr6ZMafuBm7aVh7Xu1kP8pjsb4gT0jrst4RR5oKPJDV2YnXf2vCIoo3VlCXRzjyzRN/iYtWdRrIrNdRprls1TomGsRzutC8+fxn/n8B+77smkKkXEz290SoT60Z4hLcCLzhrcvcvrOGb5P+gh31KQ6s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=T5xH0Ys5; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="T5xH0Ys5" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4974SpjU019630; Mon, 7 Oct 2024 06:07:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= zLRoZk49uyxVabf73yH4iupFA8mWSHmk562C4qtbTUY=; b=T5xH0Ys5LVkJYatq BQfD13fd7l75zTn7VLFKeqE+0li4suYiRxQ1c8z/L3OAi1JbXCqE7r5WjvayIa3x qmXDx8uGLbFD8YavLSkuhDf4QhP0tXD+eEyPOzG0KKeCMRk9ZJ9di+7PDdytGQdk DZwMcbLa7swtj+DQQXmKxpgyoHI+/k5Q94QPIoriaB/lHziw9ZjqrIjbTGr2MqsS qXZVxdVsSuBdOwLlbGoNGBQiipm+xKg13y/sTn8DFDnqX4iVAVK86XAQLsWDRQUN Zr6B+eldhiktlIRB/2hNJiBgKpZiAU+ZUeb8d6F2GTOmKD57gRmMGdSsdhF4/GS/ PjY+rg== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 422xsnk5d1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 07 Oct 2024 06:07:26 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49767PjI011814 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 7 Oct 2024 06:07:25 GMT Received: from hu-sibis-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Sun, 6 Oct 2024 23:07:20 -0700 From: Sibi Sankar To: , , , CC: , , , , , , , , , , "Johan Hovold" Subject: [PATCH V3 1/4] firmware: arm_scmi: Ensure that the message-id supports fastchannel Date: Mon, 7 Oct 2024 11:36:39 +0530 Message-ID: <20241007060642.1978049-2-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241007060642.1978049-1-quic_sibis@quicinc.com> References: <20241007060642.1978049-1-quic_sibis@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: q3SpSnhWDpKl4HwBdXV4GEis20IQxwua X-Proofpoint-ORIG-GUID: q3SpSnhWDpKl4HwBdXV4GEis20IQxwua X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 impostorscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 mlxlogscore=999 clxscore=1011 malwarescore=0 priorityscore=1501 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410070041 Content-Type: text/plain; charset="utf-8" Currently the perf and powercap protocol relies on the protocol domain attributes, which just ensures that one fastchannel per domain, before instantiating fastchannels for all possible message-ids. Fix this by ensuring that each message-id supports fastchannel before initialization. Reported-by: Johan Hovold Closes: https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/ Fixes: 6f9ea4dabd2d ("firmware: arm_scmi: Generalize the fast channel suppo= rt") Signed-off-by: Sibi Sankar Reviewed-by: Sudeep Holla Tested-by: Johan Hovold --- drivers/firmware/arm_scmi/driver.c | 9 +++++++++ drivers/firmware/arm_scmi/protocols.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi= /driver.c index 88c5c4ff4bb6..80a9a615672a 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -56,6 +56,9 @@ static atomic_t transfer_last_id; =20 static struct dentry *scmi_top_dentry; =20 +static int scmi_protocol_msg_check(const struct scmi_protocol_handle *ph, + u32 message_id, u32 *attributes); + /** * struct scmi_xfers_info - Structure to manage transfer information * @@ -1841,6 +1844,7 @@ scmi_common_fastchannel_init(const struct scmi_protoc= ol_handle *ph, int ret; u32 flags; u64 phys_addr; + u32 attributes; u8 size; void __iomem *addr; struct scmi_xfer *t; @@ -1849,6 +1853,11 @@ scmi_common_fastchannel_init(const struct scmi_proto= col_handle *ph, struct scmi_msg_resp_desc_fc *resp; const struct scmi_protocol_instance *pi =3D ph_to_pi(ph); =20 + /* Check if the MSG_ID supports fastchannel */ + ret =3D scmi_protocol_msg_check(ph, message_id, &attributes); + if (!ret && !MSG_SUPPORTS_FASTCHANNEL(attributes)) + return; + if (!p_addr) { ret =3D -EINVAL; goto err_out; diff --git a/drivers/firmware/arm_scmi/protocols.h b/drivers/firmware/arm_s= cmi/protocols.h index aaee57cdcd55..d62c4469d1fd 100644 --- a/drivers/firmware/arm_scmi/protocols.h +++ b/drivers/firmware/arm_scmi/protocols.h @@ -31,6 +31,8 @@ =20 #define SCMI_PROTOCOL_VENDOR_BASE 0x80 =20 +#define MSG_SUPPORTS_FASTCHANNEL(x) ((x) & BIT(0)) + enum scmi_common_cmd { PROTOCOL_VERSION =3D 0x0, PROTOCOL_ATTRIBUTES =3D 0x1, --=20 2.34.1 From nobody Thu Nov 28 00:28:37 2024 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DD6A774C08; 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charset="utf-8" From: Cristian Marussi Ensure that the bad duplicates reported by the platform firmware doesn't get added to the opp-tables. Reported-by: Johan Hovold Closes: https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/ Signed-off-by: Cristian Marussi Signed-off-by: Sibi Sankar --- drivers/firmware/arm_scmi/perf.c | 37 ++++++++++++++++++++++++-------- 1 file changed, 28 insertions(+), 9 deletions(-) diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/p= erf.c index 2d77b5f40ca7..38893cc44423 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -373,7 +373,7 @@ static int iter_perf_levels_update_state(struct scmi_it= erator_state *st, return 0; } =20 -static inline void +static inline int process_response_opp(struct device *dev, struct perf_dom_info *dom, struct scmi_opp *opp, unsigned int loop_idx, const struct scmi_msg_resp_perf_describe_levels *r) @@ -386,12 +386,16 @@ process_response_opp(struct device *dev, struct perf_= dom_info *dom, le16_to_cpu(r->opp[loop_idx].transition_latency_us); =20 ret =3D xa_insert(&dom->opps_by_lvl, opp->perf, opp, GFP_KERNEL); - if (ret) + if (ret) { dev_warn(dev, "Failed to add opps_by_lvl at %d for %s - ret:%d\n", opp->perf, dom->info.name, ret); + return ret; + } + + return 0; } =20 -static inline void +static inline int process_response_opp_v4(struct device *dev, struct perf_dom_info *dom, struct scmi_opp *opp, unsigned int loop_idx, const struct scmi_msg_resp_perf_describe_levels_v4 *r) @@ -404,10 +408,13 @@ process_response_opp_v4(struct device *dev, struct pe= rf_dom_info *dom, le16_to_cpu(r->opp[loop_idx].transition_latency_us); =20 ret =3D xa_insert(&dom->opps_by_lvl, opp->perf, opp, GFP_KERNEL); - if (ret) + if (ret) { dev_warn(dev, "Failed to add opps_by_lvl at %d for %s - ret:%d\n", opp->perf, dom->info.name, ret); =20 + return ret; + } + /* Note that PERF v4 reports always five 32-bit words */ opp->indicative_freq =3D le32_to_cpu(r->opp[loop_idx].indicative_freq); if (dom->level_indexing_mode) { @@ -415,13 +422,21 @@ process_response_opp_v4(struct device *dev, struct pe= rf_dom_info *dom, =20 ret =3D xa_insert(&dom->opps_by_idx, opp->level_index, opp, GFP_KERNEL); - if (ret) + if (ret) { dev_warn(dev, "Failed to add opps_by_idx at %d for %s - ret:%d\n", opp->level_index, dom->info.name, ret); =20 + /* Cleanup by_lvl too */ + xa_erase(&dom->opps_by_lvl, opp->perf); + + return ret; + } + hash_add(dom->opps_by_freq, &opp->hash, opp->indicative_freq); } + + return 0; } =20 static int @@ -429,16 +444,20 @@ iter_perf_levels_process_response(const struct scmi_p= rotocol_handle *ph, const void *response, struct scmi_iterator_state *st, void *priv) { + int ret; struct scmi_opp *opp; struct scmi_perf_ipriv *p =3D priv; =20 opp =3D &p->perf_dom->opp[st->desc_index + st->loop_idx]; if (PROTOCOL_REV_MAJOR(p->version) <=3D 0x3) - process_response_opp(ph->dev, p->perf_dom, opp, st->loop_idx, - response); + ret =3D process_response_opp(ph->dev, p->perf_dom, opp, st->loop_idx, re= sponse); else - process_response_opp_v4(ph->dev, p->perf_dom, opp, st->loop_idx, - response); + ret =3D process_response_opp_v4(ph->dev, p->perf_dom, opp, st->loop_idx,= response); + + /* Skip BAD duplicates received from firmware */ + if (ret) + return ret =3D=3D -EBUSY ? 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Fix this failure by ensuring that pm domains get a unique name using ida in pm_genpd_init. Logs: [X1E reports 'NCC' for all its scmi perf domains] debugfs: Directory 'NCC' with parent 'pm_genpd' already present! debugfs: Directory 'NCC' with parent 'pm_genpd' already present! Reported-by: Johan Hovold Closes: https://lore.kernel.org/lkml/ZoQjAWse2YxwyRJv@hovoldconsulting.com/ Fixes: 718072ceb211 ("PM: domains: create debugfs nodes when adding power d= omains") Fix-suggested-by: Ulf Hansson Signed-off-by: Sibi Sankar --- genpd names with ida appended: power-domain-cpu0_0 power-domain-cpu1_1 .... ebi_18 gfx_19 ... NCC_56 NCC_57 NCC_58 genpd summary with ida appended: domain status children performance /device runtime status managed= by -----------------------------------------------------------------------= ------- NCC_58 on = 0 NCC_57 on = 0 NCC_56 on = 0 ... gfx_19 off-0 = 0 ebi_18 off-0 = 0 ... power-domain-cpu1_1 off-0 = 0 genpd:0:cpu1 suspended 0 SW power-domain-cpu0_0 off-0 = 0 genpd:0:cpu0 suspended 0 SW drivers/pmdomain/core.c | 40 ++++++++++++++++++++++++--------------- include/linux/pm_domain.h | 1 + 2 files changed, 26 insertions(+), 15 deletions(-) diff --git a/drivers/pmdomain/core.c b/drivers/pmdomain/core.c index 5ede0f7eda09..631cb732bb39 100644 --- a/drivers/pmdomain/core.c +++ b/drivers/pmdomain/core.c @@ -7,6 +7,7 @@ #define pr_fmt(fmt) "PM: " fmt =20 #include +#include #include #include #include @@ -23,6 +24,9 @@ #include #include =20 +/* Provides a unique ID for each genpd device */ +static DEFINE_IDA(genpd_ida); + #define GENPD_RETRY_MAX_MS 250 /* Approximate */ =20 #define GENPD_DEV_CALLBACK(genpd, type, callback, dev) \ @@ -189,7 +193,7 @@ static inline bool irq_safe_dev_in_sleep_domain(struct = device *dev, =20 if (ret) dev_warn_once(dev, "PM domain %s will not be powered off\n", - genpd->name); + dev_name(&genpd->dev)); =20 return ret; } @@ -274,7 +278,7 @@ static void genpd_debug_remove(struct generic_pm_domain= *genpd) if (!genpd_debugfs_dir) return; =20 - debugfs_lookup_and_remove(genpd->name, genpd_debugfs_dir); + debugfs_lookup_and_remove(dev_name(&genpd->dev), genpd_debugfs_dir); } =20 static void genpd_update_accounting(struct generic_pm_domain *genpd) @@ -731,7 +735,7 @@ static int _genpd_power_on(struct generic_pm_domain *ge= npd, bool timed) genpd->states[state_idx].power_on_latency_ns =3D elapsed_ns; genpd->gd->max_off_time_changed =3D true; pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", - genpd->name, "on", elapsed_ns); + dev_name(&genpd->dev), "on", elapsed_ns); =20 out: raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_ON, NULL); @@ -782,7 +786,7 @@ static int _genpd_power_off(struct generic_pm_domain *g= enpd, bool timed) genpd->states[state_idx].power_off_latency_ns =3D elapsed_ns; genpd->gd->max_off_time_changed =3D true; pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", - genpd->name, "off", elapsed_ns); + dev_name(&genpd->dev), "off", elapsed_ns); =20 out: raw_notifier_call_chain(&genpd->power_notifiers, GENPD_NOTIFY_OFF, @@ -1940,7 +1944,7 @@ int dev_pm_genpd_add_notifier(struct device *dev, str= uct notifier_block *nb) =20 if (ret) { dev_warn(dev, "failed to add notifier for PM domain %s\n", - genpd->name); + dev_name(&genpd->dev)); return ret; } =20 @@ -1987,7 +1991,7 @@ int dev_pm_genpd_remove_notifier(struct device *dev) =20 if (ret) { dev_warn(dev, "failed to remove notifier for PM domain %s\n", - genpd->name); + dev_name(&genpd->dev)); return ret; } =20 @@ -2013,7 +2017,7 @@ static int genpd_add_subdomain(struct generic_pm_doma= in *genpd, */ if (!genpd_is_irq_safe(genpd) && genpd_is_irq_safe(subdomain)) { WARN(1, "Parent %s of subdomain %s must be IRQ safe\n", - genpd->name, subdomain->name); + dev_name(&genpd->dev), subdomain->name); return -EINVAL; } =20 @@ -2088,7 +2092,7 @@ int pm_genpd_remove_subdomain(struct generic_pm_domai= n *genpd, =20 if (!list_empty(&subdomain->parent_links) || subdomain->device_count) { pr_warn("%s: unable to remove subdomain %s\n", - genpd->name, subdomain->name); + dev_name(&genpd->dev), subdomain->name); ret =3D -EBUSY; goto out; } @@ -2264,8 +2268,13 @@ int pm_genpd_init(struct generic_pm_domain *genpd, if (ret) return ret; =20 + ret =3D ida_alloc(&genpd_ida, GFP_KERNEL); + if (ret < 0) + return ret; + genpd->device_id =3D ret; + device_initialize(&genpd->dev); - dev_set_name(&genpd->dev, "%s", genpd->name); + dev_set_name(&genpd->dev, "%s_%u", genpd->name, genpd->device_id); =20 mutex_lock(&gpd_list_lock); list_add(&genpd->gpd_list_node, &gpd_list); @@ -2287,13 +2296,13 @@ static int genpd_remove(struct generic_pm_domain *g= enpd) =20 if (genpd->has_provider) { genpd_unlock(genpd); - pr_err("Provider present, unable to remove %s\n", genpd->name); + pr_err("Provider present, unable to remove %s\n", dev_name(&genpd->dev)); return -EBUSY; } =20 if (!list_empty(&genpd->parent_links) || genpd->device_count) { genpd_unlock(genpd); - pr_err("%s: unable to remove %s\n", __func__, genpd->name); + pr_err("%s: unable to remove %s\n", __func__, dev_name(&genpd->dev)); return -EBUSY; } =20 @@ -2307,9 +2316,10 @@ static int genpd_remove(struct generic_pm_domain *ge= npd) genpd_unlock(genpd); genpd_debug_remove(genpd); cancel_work_sync(&genpd->power_off_work); + ida_free(&genpd_ida, genpd->device_id); genpd_free_data(genpd); =20 - pr_debug("%s: removed %s\n", __func__, genpd->name); + pr_debug("%s: removed %s\n", __func__, dev_name(&genpd->dev)); =20 return 0; } @@ -3272,12 +3282,12 @@ static int genpd_summary_one(struct seq_file *s, else snprintf(state, sizeof(state), "%s", status_lookup[genpd->status]); - seq_printf(s, "%-30s %-30s %u", genpd->name, state, genpd->performance_= state); + seq_printf(s, "%-30s %-30s %u", dev_name(&genpd->dev), state, genpd->pe= rformance_state); =20 /* * Modifications on the list require holding locks on both * parent and child, so we are safe. - * Also genpd->name is immutable. + * Also the device name is immutable. */ list_for_each_entry(link, &genpd->parent_links, parent_node) { if (list_is_first(&link->parent_node, &genpd->parent_links)) @@ -3502,7 +3512,7 @@ static void genpd_debug_add(struct generic_pm_domain = *genpd) if (!genpd_debugfs_dir) return; 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Mon, 07 Oct 2024 06:07:40 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49767dra025606 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 7 Oct 2024 06:07:39 GMT Received: from hu-sibis-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Sun, 6 Oct 2024 23:07:35 -0700 From: Sibi Sankar To: , , , CC: , , , , , , , , , , "Johan Hovold" Subject: [PATCH V3 4/4] mailbox: qcom-cpucp: Mark the irq with IRQF_NO_SUSPEND flag Date: Mon, 7 Oct 2024 11:36:42 +0530 Message-ID: <20241007060642.1978049-5-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241007060642.1978049-1-quic_sibis@quicinc.com> References: <20241007060642.1978049-1-quic_sibis@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: cFOQsPJODioytTC0j0JhSxo5sSMs7haL X-Proofpoint-GUID: cFOQsPJODioytTC0j0JhSxo5sSMs7haL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 adultscore=0 suspectscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=999 clxscore=1015 malwarescore=0 spamscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410070041 Content-Type: text/plain; charset="utf-8" The qcom-cpucp mailbox irq is expected to function during suspend-resume cycle particularly when the scmi cpufreq driver can query the current frequency using the get_level message after the cpus are brought up during resume. Hence mark the irq with IRQF_NO_SUSPEND flag to fix the do_xfer failures we see during resume. Err Logs: arm-scmi firmware:scmi: timed out in resp(caller:do_xfer+0x164/0x568) cpufreq: cpufreq_online: ->get() failed Reported-by: Johan Hovold Closes: https://lore.kernel.org/lkml/ZtgFj1y5ggipgEOS@hovoldconsulting.com/ Fixes: 0e2a9a03106c ("mailbox: Add support for QTI CPUCP mailbox controller= ") Signed-off-by: Sibi Sankar Reviewed-by: Konrad Dybcio Tested-by: Johan Hovold --- drivers/mailbox/qcom-cpucp-mbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/qcom-cpucp-mbox.c b/drivers/mailbox/qcom-cpucp= -mbox.c index e5437c294803..44f4ed15f818 100644 --- a/drivers/mailbox/qcom-cpucp-mbox.c +++ b/drivers/mailbox/qcom-cpucp-mbox.c @@ -138,7 +138,7 @@ static int qcom_cpucp_mbox_probe(struct platform_device= *pdev) return irq; =20 ret =3D devm_request_irq(dev, irq, qcom_cpucp_mbox_irq_fn, - IRQF_TRIGGER_HIGH, "apss_cpucp_mbox", cpucp); + IRQF_TRIGGER_HIGH | IRQF_NO_SUSPEND, "apss_cpucp_mbox", cpucp); if (ret < 0) return dev_err_probe(dev, ret, "Failed to register irq: %d\n", irq); =20 --=20 2.34.1