From patchwork Fri Aug 16 14:44:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13766462 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 7CA3A1C0DE5; Fri, 16 Aug 2024 14:44:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723819473; cv=none; b=cy8hZx4QuOE5TWCwzGWdHTs5T/2G7/86BwwloBGh5EQ9cfDIiV5QYflvg9IWt6RxZzjtLWMStVcKtDWphpUdrre4o2saETCNwLQ0U38aimUABnq3PqaTvKShPpP1f7KK58FVzngrWw595L8l/Tk9G63wLJOiGn/qdPZjWb7A+9E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723819473; c=relaxed/simple; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=QCFuXCtGtDO+v31/DToW4djyHuP6wo3HT2dwsdgggVWyI3MVTlPrAagH2/cRczTBkTUI4YUtmwzTmau6IPuj/P40hPZdVMBuoPxu4jcWs4vGEbaLlD+lwwtNYWfygggNoE0R5bXrT35/qpHXIUaumPjzO4f/GbSZMI0aPcY+ncw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=DnAGiqHi; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="DnAGiqHi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723819471; x=1755355471; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; b=DnAGiqHii4IUeRtbJm6lOo/kX/GgcPHWksChwvjhWljOzwQdxCwj8rcT 0GNV0EtPnxys9xQn3QFe8ifawhUFtMR1N4J2Aw99Ts/1NZzxID7u4h8wx z8gE1rx3v78b1wvsE4mZhLjuzD9zQ6o+XpXHZeHwxM7W2zd8FBBjIWKG3 b62uMVsFmDfZur7nQ9MCSFlRVSUAHpRdoEYDmJ9g5qkYNoNkNvEaDwjas h8rOzVVqM4hjrH8UFe94/jZelTrN8ND6wkNZg9x8dx27dEgcq6UwlinR0 9WWPVyHvvb7Tm7fNHAHQvfa1d/CMdk/BcZoDQsgrySk0jFPQGxGALihSn Q==; X-CSE-ConnectionGUID: NmRHeWkwT7asGc+JFGGdWw== X-CSE-MsgGUID: b1XROWJPTwKCRYnf3SCWHw== X-IronPort-AV: E=McAfee;i="6700,10204,11166"; a="32753042" X-IronPort-AV: E=Sophos;i="6.10,152,1719903600"; d="scan'208";a="32753042" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:44:31 -0700 X-CSE-ConnectionGUID: A+k9k11cTg+775dN+jvcmQ== X-CSE-MsgGUID: cU+2hgLVTZyWb0vy2IeXrQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,152,1719903600"; d="scan'208";a="64086946" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.125.111.52]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2024 07:44:30 -0700 From: Ira Weiny Date: Fri, 16 Aug 2024 09:44:12 -0500 Subject: [PATCH v3 04/25] cxl/pci: Delay event buffer allocation Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240816-dcd-type2-upstream-v3-4-7c9b96cba6d7@intel.com> References: <20240816-dcd-type2-upstream-v3-0-7c9b96cba6d7@intel.com> In-Reply-To: <20240816-dcd-type2-upstream-v3-0-7c9b96cba6d7@intel.com> To: Dave Jiang , Fan Ni , Jonathan Cameron , Navneet Singh , Chris Mason , Josef Bacik , David Sterba , Petr Mladek , Steven Rostedt , Andy Shevchenko , Rasmus Villemoes , Sergey Senozhatsky , Jonathan Corbet , Andrew Morton Cc: Dan Williams , Davidlohr Bueso , Alison Schofield , Vishal Verma , Ira Weiny , linux-btrfs@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, nvdimm@lists.linux.dev X-Mailer: b4 0.15-dev-37811 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723819455; l=1342; i=ira.weiny@intel.com; s=20221211; h=from:subject:message-id; bh=Zo1dZh5pzHpeeydz3y04EF5edS3G2yB/CM8mLx26TMA=; b=lyHNdhhQchPEN4TCZSPERaIaafc1u1Lsn2DUD7pdFQA5VhnwgIqVo02pSl2kHckh8G0WbvonX e/oHe5Pwb1qDk21M9b7O1JOZRcv30gG8jtJJeE4CCENw0p8xI32ir6G X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=noldbkG+Wp1qXRrrkfY1QJpDf7QsOEthbOT7vm0PqsE= The event buffer does not need to be allocated if something has failed in setting up event irq's. In prep for adjusting event configuration for DCD events move the buffer allocation to the end of the event configuration. Reviewed-by: Davidlohr Bueso Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Signed-off-by: Ira Weiny Reviewed-by: Li Ming Reviewed-by: Fan Ni --- Changes: [iweiny: keep tags for early simple patch] [Davidlohr, Jonathan, djiang: move to beginning of series] [Dave feel free to pick this up if you like] --- drivers/cxl/pci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c index 4be35dc22202..3a60cd66263e 100644 --- a/drivers/cxl/pci.c +++ b/drivers/cxl/pci.c @@ -760,10 +760,6 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, return 0; } - rc = cxl_mem_alloc_event_buf(mds); - if (rc) - return rc; - rc = cxl_event_get_int_policy(mds, &policy); if (rc) return rc; @@ -777,6 +773,10 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge, return -EBUSY; } + rc = cxl_mem_alloc_event_buf(mds); + if (rc) + return rc; + rc = cxl_event_irqsetup(mds); if (rc) return rc;