From patchwork Mon Jan 18 09:47:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 12026873 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 44D89C433E0 for ; Mon, 18 Jan 2021 10:03:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BD99922B48 for ; Mon, 18 Jan 2021 10:03:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD99922B48 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38848 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l1RO9-0001vL-DX for qemu-devel@archiver.kernel.org; Mon, 18 Jan 2021 05:03:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:53424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1R85-0000mL-1l; Mon, 18 Jan 2021 04:47:21 -0500 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:41765) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l1R83-00016j-D6; Mon, 18 Jan 2021 04:47:20 -0500 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id A828B5C0164; Mon, 18 Jan 2021 04:47:18 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Mon, 18 Jan 2021 04:47:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.dk; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=+uRqlbEx0fkoa 5YOaRoZO1Pw488di9s9lI1NNCnfOMs=; b=H7LDP032op6gOsp5KBKn48swNZv7N sbTrcQSLbGrhNXZbrpxiuWmwCTJkjDVDBqzNcLvg9I/T4OizusDcPUc7+6zPClWE J1G8a9FygPAJJEIGpcHKjsk/fmNpWseGMvT6qeuLnAY28j0qEGyu1Y67NtFUrzhf sXOhGGXrpU4QcM4sGz/T2F32LH79aGsJ7mnpMhQIhlvTZVo7crOJBKw9wLNeONBq eyJ5VqztKH5ExPoNztHeXOqtN5AQkOzS5fLpLIev2wsyg27f+uNd8ENQDSsYNmuy 0nKXvxS4ux/axEz9wTBb4W+nTPGBnCrOhEOu2aiSeCjymDO7lrhVVq8lQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=+uRqlbEx0fkoa5YOaRoZO1Pw488di9s9lI1NNCnfOMs=; b=dy9zbdA4 NP4sD3qrvFmzaB3z7ftgNBINreQes5HQD1A+M29sdctyMz8w/M4gsfuA28x80OpM ohaQRGwZ5M4H5Kp1Qsz/f7JkuyB7AxPwtl+AVzQKLZuMMuQz5jTesYhmJbclp4tL h79wZL+n2slbnxL+a04uTjwM1Vbf8OiY8MV8rwWUX5cTx3IAEiNsgUEWtNmksu28 6CUonxZinqPh9qz79E85AsSP5cFrcK0H7xij6ZeV/q4gCt6BAIC4Q+Lihd7DrIll PFXwD4ufY3PQPopp6miahrIvv5PItpmMee/Gg0+pFZWAygzixAJFNYLcaFTA6feC Lg0XHr2V9gC4Dw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrtdekgddtkecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepmfhlrghushcu lfgvnhhsvghnuceoihhtshesihhrrhgvlhgvvhgrnhhtrdgukheqnecuggftrfgrthhtvg hrnhepueelteegieeuhffgkeefgfevjeeigfetkeeitdfgtdeifefhtdfhfeeuffevgfek necukfhppeektddrudeijedrleekrdduledtnecuvehluhhsthgvrhfuihiivgepfeenuc frrghrrghmpehmrghilhhfrhhomhepihhtshesihhrrhgvlhgvvhgrnhhtrdgukh X-ME-Proxy: Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by mail.messagingengine.com (Postfix) with ESMTPA id 642A224005A; Mon, 18 Jan 2021 04:47:17 -0500 (EST) From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v2 07/12] hw/block/nvme: remove redundant zeroing of PMR registers Date: Mon, 18 Jan 2021 10:47:00 +0100 Message-Id: <20210118094705.56772-8-its@irrelevant.dk> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210118094705.56772-1-its@irrelevant.dk> References: <20210118094705.56772-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=66.111.4.29; envelope-from=its@irrelevant.dk; helo=out5-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , qemu-block@nongnu.org, Klaus Jensen , Max Reitz , Klaus Jensen , Stefan Hajnoczi , Keith Busch Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen The controller registers are initially zero. Remove the redundant zeroing. Signed-off-by: Klaus Jensen --- hw/block/nvme.c | 35 ----------------------------------- 1 file changed, 35 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index f3bea582b3c0..9ee9570bb65c 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -4179,43 +4179,8 @@ static void nvme_init_cmb(NvmeCtrl *n, PCIDevice *pci_dev) static void nvme_init_pmr(NvmeCtrl *n, PCIDevice *pci_dev) { - /* PMR Capabities register */ - n->bar.pmrcap = 0; - NVME_PMRCAP_SET_RDS(n->bar.pmrcap, 0); - NVME_PMRCAP_SET_WDS(n->bar.pmrcap, 0); NVME_PMRCAP_SET_BIR(n->bar.pmrcap, NVME_PMR_BIR); - NVME_PMRCAP_SET_PMRTU(n->bar.pmrcap, 0); - /* Turn on bit 1 support */ NVME_PMRCAP_SET_PMRWBM(n->bar.pmrcap, 0x02); - NVME_PMRCAP_SET_PMRTO(n->bar.pmrcap, 0); - NVME_PMRCAP_SET_CMSS(n->bar.pmrcap, 0); - - /* PMR Control register */ - n->bar.pmrctl = 0; - NVME_PMRCTL_SET_EN(n->bar.pmrctl, 0); - - /* PMR Status register */ - n->bar.pmrsts = 0; - NVME_PMRSTS_SET_ERR(n->bar.pmrsts, 0); - NVME_PMRSTS_SET_NRDY(n->bar.pmrsts, 0); - NVME_PMRSTS_SET_HSTS(n->bar.pmrsts, 0); - NVME_PMRSTS_SET_CBAI(n->bar.pmrsts, 0); - - /* PMR Elasticity Buffer Size register */ - n->bar.pmrebs = 0; - NVME_PMREBS_SET_PMRSZU(n->bar.pmrebs, 0); - NVME_PMREBS_SET_RBB(n->bar.pmrebs, 0); - NVME_PMREBS_SET_PMRWBZ(n->bar.pmrebs, 0); - - /* PMR Sustained Write Throughput register */ - n->bar.pmrswtp = 0; - NVME_PMRSWTP_SET_PMRSWTU(n->bar.pmrswtp, 0); - NVME_PMRSWTP_SET_PMRSWTV(n->bar.pmrswtp, 0); - - /* PMR Memory Space Control register */ - n->bar.pmrmsc = 0; - NVME_PMRMSC_SET_CMSE(n->bar.pmrmsc, 0); - NVME_PMRMSC_SET_CBA(n->bar.pmrmsc, 0); pci_register_bar(pci_dev, NVME_PMRCAP_BIR(n->bar.pmrcap), PCI_BASE_ADDRESS_SPACE_MEMORY |