From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0142CFEFB6A for ; Fri, 27 Feb 2026 17:03:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A8D8B10EBD4; Fri, 27 Feb 2026 17:03:28 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="TZQLbTY0"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id 833B810EBD8 for ; Fri, 27 Feb 2026 17:03:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772211808; x=1803747808; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=SgT4HN0d/8+urBujdv0YIOZxFcoFrISGp1BtY86/GT4=; b=TZQLbTY001BHlNcvCsJr0Mqlz4jyFbvKSp3Ok6WQ87AixUb3L0MBr8ST gAXxxAzHRfxkzYL37qzv7d81c3wdS9q8yqshEoiWrwI9FS2tRRbmpdAbp aQA1Gf8pw9oP0tXRAsrRljUqRT0iioOjmh96WGxqQIvEtyQh/0+9g1GA0 WAvfb7002EX6V3LvA3COeTlyvKuyMC3f4k/P+Rs0gAZVkqYaJBFzrFpCg 7pA5kIfIn2azO6LherbCgwtkf0ft81jUsjEeElFOP9WjSlVE4+eNWtEar mfj3sZS9eWADFZ5nGFzLLzY4xAQAsev4qtOdaZehR6rN4iStgH9AXZqbz w==; X-CSE-ConnectionGUID: aiwZ/rJZR1iC1UthIC3Jfg== X-CSE-MsgGUID: PzjBNqnsTriicUY5VzeQXw== X-IronPort-AV: E=McAfee;i="6800,10657,11714"; a="73169909" X-IronPort-AV: E=Sophos;i="6.21,314,1763452800"; d="scan'208";a="73169909" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2026 09:03:28 -0800 X-CSE-ConnectionGUID: inX6RVAIT5qQih0YILLgOg== X-CSE-MsgGUID: Ogtad5DsRzKu5CYCfXmhyA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,314,1763452800"; d="scan'208";a="216964736" Received: from jraag-z790m-itx-wifi.iind.intel.com ([10.190.239.23]) by orviesa008.jf.intel.com with ESMTP; 27 Feb 2026 09:03:24 -0800 From: Raag Jadav To: intel-xe@lists.freedesktop.org Cc: matthew.brost@intel.com, rodrigo.vivi@intel.com, thomas.hellstrom@linux.intel.com, riana.tauro@intel.com, michal.wajdeczko@intel.com, matthew.d.roper@intel.com, michal.winiarski@intel.com, matthew.auld@intel.com, maarten@lankhorst.se, Raag Jadav Subject: [PATCH v2 4/9] drm/xe: Introduce xe_device_assert_lmem_ready() Date: Fri, 27 Feb 2026 22:30:44 +0530 Message-ID: <20260227170049.3418863-5-raag.jadav@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260227170049.3418863-1-raag.jadav@intel.com> References: <20260227170049.3418863-1-raag.jadav@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" In preparation of usecases which require verifying LMEM readiness after PCIe FLR, introduce xe_device_assert_lmem_ready() helper. Signed-off-by: Raag Jadav --- v2: Add kernel doc (Matthew Brost) --- drivers/gpu/drm/xe/xe_device.c | 10 ++++++++-- drivers/gpu/drm/xe/xe_device.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c index eee183732950..ce79b7cdafeb 100644 --- a/drivers/gpu/drm/xe/xe_device.c +++ b/drivers/gpu/drm/xe/xe_device.c @@ -650,7 +650,13 @@ static int xe_set_dma_info(struct xe_device *xe) return err; } -static void assert_lmem_ready(struct xe_device *xe) +/** + * xe_device_assert_lmem_ready() - Verify LMEM readiness + * @xe: xe device instance + * + * Verify LMEM readiness and assert on failure. + */ +void xe_device_assert_lmem_ready(struct xe_device *xe) { if (!IS_DGFX(xe) || IS_SRIOV_VF(xe)) return; @@ -738,7 +744,7 @@ int xe_device_probe_early(struct xe_device *xe) * is flagged after full initialization is complete. Assert if lmem is * not initialized. */ - assert_lmem_ready(xe); + xe_device_assert_lmem_ready(xe); xe->wedged.mode = xe_device_validate_wedged_mode(xe, xe_modparam.wedged_mode) ? XE_DEFAULT_WEDGED_MODE : xe_modparam.wedged_mode; diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h index 39464650533b..44db00d0ad55 100644 --- a/drivers/gpu/drm/xe/xe_device.h +++ b/drivers/gpu/drm/xe/xe_device.h @@ -140,6 +140,7 @@ static inline struct xe_force_wake *gt_to_fw(struct xe_gt *gt) return >->pm.fw; } +void xe_device_assert_lmem_ready(struct xe_device *xe); void xe_device_assert_mem_access(struct xe_device *xe); static inline bool xe_device_has_flat_ccs(struct xe_device *xe) -- 2.43.0