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mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from MN0PR11MB6207.namprd11.prod.outlook.com (2603:10b6:208:3c5::21) by CH3PR11MB7820.namprd11.prod.outlook.com (2603:10b6:610:120::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.315.14; Thu, 13 Aug 2026 12:31:43 +0000 Received: from MN0PR11MB6207.namprd11.prod.outlook.com ([fe80::52eb:929f:a8b2:139d]) by MN0PR11MB6207.namprd11.prod.outlook.com ([fe80::52eb:929f:a8b2:139d%5]) with mapi id 15.21.0292.024; Thu, 13 Aug 2026 12:31:43 +0000 Message-ID: <5f61f3de-357c-489a-9bb2-f3874a98573e@intel.com> Date: Thu, 13 Aug 2026 18:01:33 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 11/32] drm/xe/log: Index all SIGID printk messages To: Michal Wajdeczko , CC: Jani Nikula , Rodrigo Vivi References: <20260812191450.11690-1-michal.wajdeczko@intel.com> <20260812191450.11690-12-michal.wajdeczko@intel.com> Content-Language: en-US From: "Mallesh, Koujalagi" In-Reply-To: <20260812191450.11690-12-michal.wajdeczko@intel.com> Content-Type: text/plain; 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While usually this is > done automatically behind the scenes when code is using regular > dev_printk macros, since we are generating different dmesg messages > inside xe_log_emit() based on the severity, component and location, > we only get those entries in /sys/kernel/debug/printk/index/xe: > > <3> drivers/gpu/drm/xe/xe_log.c:142 log_dmesg_vprintk "%s %s: [drm] *ERROR* %pV" > <6> drivers/gpu/drm/xe/xe_log.c:140 log_dmesg_vprintk "%s %s: [drm] %pV" > > Explicitly generate printk index using dev_printk_index_emit() with > some generic prefix that includes the SIGID tag. > > Suggested-by: Jani Nikula > Signed-off-by: Michal Wajdeczko > Cc: Jani Nikula > Cc: Rodrigo Vivi > --- > drivers/gpu/drm/xe/xe_log.c | 8 ++++---- > drivers/gpu/drm/xe/xe_log.h | 14 +++++++++++--- > 2 files changed, 15 insertions(+), 7 deletions(-) > > diff --git a/drivers/gpu/drm/xe/xe_log.c b/drivers/gpu/drm/xe/xe_log.c > index 0b423ed121cd..50a9b35e5b3e 100644 > --- a/drivers/gpu/drm/xe/xe_log.c > +++ b/drivers/gpu/drm/xe/xe_log.c > @@ -177,7 +177,7 @@ static void log_emit_dmesg(struct pci_dev *pdev, int cper_sev, enum xe_sigid sig > } > > /** > - * xe_log_emit() - Emit a structured SIGID log entry > + * __xe_log_emit() - Emit a structured SIGID log entry > * @pdev: the &pci_dev device > * @cper_sev: CPER severity (CPER_SEV_FATAL, CPER_SEV_RECOVERABLE, ...) > * @sigid: signature identifier, see &enum xe_sigid > @@ -206,9 +206,9 @@ static void log_emit_dmesg(struct pci_dev *pdev, int cper_sev, enum xe_sigid sig > * <3> xe 0000:03:00.0: [drm] *ERROR* SIGID=106 (-ETIMEDOUT) Engine 'rcs0' hung > * <6> xe 0000:03:00.0: [drm] SIGID=103 In survivability mode > */ > -void xe_log_emit(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid, > - u32 component, u32 location, const void *data, size_t len, > - const char *fmt, ...) > +void __xe_log_emit(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid, > + u32 component, u32 location, const void *data, size_t len, > + const char *fmt, ...) > { > struct va_format vaf; > va_list args; > diff --git a/drivers/gpu/drm/xe/xe_log.h b/drivers/gpu/drm/xe/xe_log.h > index 0928b0866617..53fe2bb7ddd3 100644 > --- a/drivers/gpu/drm/xe/xe_log.h > +++ b/drivers/gpu/drm/xe/xe_log.h > @@ -16,9 +16,17 @@ > struct pci_dev; > > __printf(8, 9) > -void xe_log_emit(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid, > - u32 component, u32 location, const void *data, size_t len, > - const char *fmt, ...); > +void __xe_log_emit(struct pci_dev *pdev, int cper_sev, enum xe_sigid sigid, > + u32 component, u32 location, const void *data, size_t len, > + const char *fmt, ...); > + > +#define __xe_log_emit_printk_index(fmt) \ > + dev_printk_index_emit(NULL, "[drm]%s SIGID=%u %s(%s)%s%s%s: " fmt); We need to change format for a. error path b. blob path c. plain or info path right? > + > +#define xe_log_emit(pdev, sev, sig, comp, loc, data, len, fmt, args...) ({ \ > + __xe_log_emit_printk_index(fmt); \ > + __xe_log_emit((pdev), (sev), (sig), (comp), (loc), (data), (len), fmt, ##args); \ > +}) nit: use do{} while (0) Reviewed-by: Mallesh Koujalagi > > #define xe_log_emit_fatal(pdev, sig, comp, loc, data, len, fmt, args...) \ > xe_log_emit((pdev), CPER_SEV_FATAL, (sig), (comp), (loc), \