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 4497FCA0FE7 for ; Mon, 25 Aug 2025 17:57:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0DAD710E525; Mon, 25 Aug 2025 17:57:34 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Rf2bwqzK"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9ACE110E522 for ; Mon, 25 Aug 2025 17:57:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1756144649; x=1787680649; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eZ0Lu9GK6FeMZYBREt4xfQhIl5hWtANBGmHfpNPgrzI=; b=Rf2bwqzKf5zmneGNKlBpiwlJodm527qw463qSrLoOeFPk2zHPUtSVbdA GlxfmFceodcrVF6tsf9BlkzLgzs6+kBzGkpqUDhVgglycbZqN3zYCkXxZ wcegxOIiEqqMKzGq1HUcVbwrCDp3bWD3JilrLgqL3f2K/B0tJXyclA0Sd J6w1THiQEpARdb88e3SrEPZGyi90/mGXSAENrhATVtMqpnMIkovGfVS+e D7aJiNwUn/Wl0/02sfWv6qBr9KzzZbq0KIjAGpHMKreU5EDXzmVLQilXa Ez6n91UTQGx90uknCv5Eed1CvVcmzh3ItOMBsiCSwky8m/sznxcb3YMTT Q==; X-CSE-ConnectionGUID: buCKEaK/SeGjHOl11COkrw== X-CSE-MsgGUID: qAd43S2nTe2tGWB2sEAQtA== X-IronPort-AV: E=McAfee;i="6800,10657,11533"; a="45942704" X-IronPort-AV: E=Sophos;i="6.18,213,1751266800"; d="scan'208";a="45942704" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2025 10:57:28 -0700 X-CSE-ConnectionGUID: 221MMGPnRZyGLo2DoYb+TA== X-CSE-MsgGUID: ZVMHsCBrRs6OK25CilfoGw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,213,1751266800"; d="scan'208";a="168606930" Received: from dut137arlu.fm.intel.com ([10.105.23.75]) by orviesa010-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2025 10:57:26 -0700 From: Stuart Summers To: Cc: intel-xe@lists.freedesktop.org, matthew.brost@intel.com, farah.kassabri@intel.com, Stuart Summers Subject: [PATCH 5/9] drm/xe: Add xe_gt_tlb_invalidation_done_handler Date: Mon, 25 Aug 2025 17:57:17 +0000 Message-Id: <20250825175721.89129-6-stuart.summers@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250825175721.89129-1-stuart.summers@intel.com> References: <20250825175721.89129-1-stuart.summers@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" From: Matthew Brost Decouple GT TLB seqno handling from G2H handler. v2: - Add kernel doc Signed-off-by: Matthew Brost Reviewed-by: Stuart Summers --- drivers/gpu/drm/xe/xe_gt_tlb_inval.c | 47 ++++++++++++++++++---------- 1 file changed, 30 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_inval.c b/drivers/gpu/drm/xe/xe_gt_tlb_inval.c index 1571fd917830..37b3b45ec230 100644 --- a/drivers/gpu/drm/xe/xe_gt_tlb_inval.c +++ b/drivers/gpu/drm/xe/xe_gt_tlb_inval.c @@ -506,27 +506,18 @@ void xe_gt_tlb_inval_vm(struct xe_gt *gt, struct xe_vm *vm) } /** - * xe_guc_tlb_inval_done_handler - TLB invalidation done handler - * @guc: guc - * @msg: message indicating TLB invalidation done - * @len: length of message - * - * Parse seqno of TLB invalidation, wake any waiters for seqno, and signal any - * invalidation fences for seqno. Algorithm for this depends on seqno being - * received in-order and asserts this assumption. + * xe_gt_tlb_inval_done_handler - GT TLB invalidation done handler + * @gt: gt + * @seqno: seqno of invalidation that is done * - * Return: 0 on success, -EPROTO for malformed messages. + * Update recv seqno, signal any GT TLB invalidation fences, and restart TDR */ -int xe_guc_tlb_inval_done_handler(struct xe_guc *guc, u32 *msg, u32 len) +static void xe_gt_tlb_inval_done_handler(struct xe_gt *gt, int seqno) { - struct xe_gt *gt = guc_to_gt(guc); struct xe_device *xe = gt_to_xe(gt); struct xe_gt_tlb_inval_fence *fence, *next; unsigned long flags; - if (unlikely(len != 1)) - return -EPROTO; - /* * This can also be run both directly from the IRQ handler and also in * process_g2h_msg(). Only one may process any individual CT message, @@ -543,12 +534,12 @@ int xe_guc_tlb_inval_done_handler(struct xe_guc *guc, u32 *msg, u32 len) * process_g2h_msg(). */ spin_lock_irqsave(>->tlb_inval.pending_lock, flags); - if (tlb_inval_seqno_past(gt, msg[0])) { + if (tlb_inval_seqno_past(gt, seqno)) { spin_unlock_irqrestore(>->tlb_inval.pending_lock, flags); - return 0; + return; } - WRITE_ONCE(gt->tlb_inval.seqno_recv, msg[0]); + WRITE_ONCE(gt->tlb_inval.seqno_recv, seqno); list_for_each_entry_safe(fence, next, >->tlb_inval.pending_fences, link) { @@ -568,6 +559,28 @@ int xe_guc_tlb_inval_done_handler(struct xe_guc *guc, u32 *msg, u32 len) cancel_delayed_work(>->tlb_inval.fence_tdr); spin_unlock_irqrestore(>->tlb_inval.pending_lock, flags); +} + +/** + * xe_guc_tlb_inval_done_handler - TLB invalidation done handler + * @guc: guc + * @msg: message indicating TLB invalidation done + * @len: length of message + * + * Parse seqno of TLB invalidation, wake any waiters for seqno, and signal any + * invalidation fences for seqno. Algorithm for this depends on seqno being + * received in-order and asserts this assumption. + * + * Return: 0 on success, -EPROTO for malformed messages. + */ +int xe_guc_tlb_inval_done_handler(struct xe_guc *guc, u32 *msg, u32 len) +{ + struct xe_gt *gt = guc_to_gt(guc); + + if (unlikely(len != 1)) + return -EPROTO; + + xe_gt_tlb_inval_done_handler(gt, msg[0]); return 0; } -- 2.34.1