From patchwork Tue Feb 2 00:59:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 12188119 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 77966C433E9 for ; Tue, 2 Feb 2021 01:01:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51E3B64EE0 for ; Tue, 2 Feb 2021 01:01:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229603AbhBBBBC (ORCPT ); Mon, 1 Feb 2021 20:01:02 -0500 Received: from mga06.intel.com ([134.134.136.31]:21927 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229530AbhBBBBC (ORCPT ); Mon, 1 Feb 2021 20:01:02 -0500 IronPort-SDR: +fIwtrynx/VyHS14UQV5IbePsKfKzihWAhleGf87jwcUxySG2JmNz1Skxx6oRfiqm6PmyKDTLm ZDXJj9l1At8g== X-IronPort-AV: E=McAfee;i="6000,8403,9882"; a="242294604" X-IronPort-AV: E=Sophos;i="5.79,393,1602572400"; d="scan'208";a="242294604" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2021 17:00:00 -0800 IronPort-SDR: mmUmXCN6J2aJPC/ijizScyMOh8a5yeq8Jfhd/bSRJrt5lPYT6Uovz6ZiY4ubdqmo2Xo6wUVAgU HCUDzXSmFCYw== X-IronPort-AV: E=Sophos;i="5.79,393,1602572400"; d="scan'208";a="581764074" Received: from jambrizm-mobl1.amr.corp.intel.com (HELO bwidawsk-mobl5.local) ([10.252.133.15]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Feb 2021 16:59:59 -0800 From: Ben Widawsky To: qemu-devel@nongnu.org Cc: Ben Widawsky , linux-cxl@vger.kernel.org, Chris Browy , Dan Williams , David Hildenbrand , Igor Mammedov , Ira Weiny , Jonathan Cameron , Marcel Apfelbaum , Markus Armbruster , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Vishal Verma , "John Groves (jgroves)" , "Michael S. Tsirkin" Subject: [RFC PATCH v3 07/31] hw/cxl/device: Add cheap EVENTS implementation (8.2.9.1) Date: Mon, 1 Feb 2021 16:59:24 -0800 Message-Id: <20210202005948.241655-8-ben.widawsky@intel.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210202005948.241655-1-ben.widawsky@intel.com> References: <20210202005948.241655-1-ben.widawsky@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org Using the previously implemented stubbed helpers, it is now possible to easily add the missing, required commands to the implementation. Signed-off-by: Ben Widawsky --- hw/cxl/cxl-mailbox-utils.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 466055b01a..7c939a1851 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -37,6 +37,14 @@ * a register interface that already deals with it. */ +enum { + EVENTS = 0x01, + #define GET_RECORDS 0x0 + #define CLEAR_RECORDS 0x1 + #define GET_INTERRUPT_POLICY 0x2 + #define SET_INTERRUPT_POLICY 0x3 +}; + /* 8.2.8.4.5.1 Command Return Codes */ typedef enum { CXL_MBOX_SUCCESS = 0x0, @@ -105,10 +113,23 @@ struct cxl_cmd { return CXL_MBOX_SUCCESS; \ } +define_mailbox_handler_zeroed(EVENTS_GET_RECORDS, 0x20); +define_mailbox_handler_nop(EVENTS_CLEAR_RECORDS); +define_mailbox_handler_zeroed(EVENTS_GET_INTERRUPT_POLICY, 4); +define_mailbox_handler_nop(EVENTS_SET_INTERRUPT_POLICY); + +#define IMMEDIATE_CONFIG_CHANGE (1 << 1) +#define IMMEDIATE_LOG_CHANGE (1 << 4) + #define CXL_CMD(s, c, in, cel_effect) \ [s][c] = { stringify(s##_##c), cmd_##s##_##c, in, cel_effect } -static struct cxl_cmd cxl_cmd_set[256][256] = {}; +static struct cxl_cmd cxl_cmd_set[256][256] = { + CXL_CMD(EVENTS, GET_RECORDS, 1, 0), + CXL_CMD(EVENTS, CLEAR_RECORDS, ~0, IMMEDIATE_LOG_CHANGE), + CXL_CMD(EVENTS, GET_INTERRUPT_POLICY, 0, 0), + CXL_CMD(EVENTS, SET_INTERRUPT_POLICY, 4, IMMEDIATE_CONFIG_CHANGE), +}; #undef CXL_CMD