From patchwork Wed Jan 6 03:38:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 12000895 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 95B3DC433DB for ; Wed, 6 Jan 2021 03:45:41 +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 2343222BF5 for ; Wed, 6 Jan 2021 03:45:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2343222BF5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39536 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kwzlT-0006eT-Oc for qemu-devel@archiver.kernel.org; Tue, 05 Jan 2021 22:45:40 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:44836) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwzeq-0005k1-2j; Tue, 05 Jan 2021 22:38:48 -0500 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:59885 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kwzej-0006Ia-RB; Tue, 05 Jan 2021 22:38:43 -0500 Received: by ozlabs.org (Postfix, from userid 1007) id 4D9ZpG5y2vz9sWC; Wed, 6 Jan 2021 14:38:30 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1609904310; bh=Q0SirtfQ/vPjQ1kn/a0VIr6kOZdpTCrLX8RQP5vLVTk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Te1E8wWR8OWfZ93BU3/k3EADunv74YZJTqjV8McM6xHkDnXChvRCEGoRqjkkTRkth EJ8zbIzsHOdg1RVzbgH+ULZMxyk2dwJsCRduOTIHpcPsqgWG77H8jIV3V/Z9GkZKq7 0yJXphKzUqPCunA565kgQ2G6XnPa0vYZErPQDDx0= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 10/22] spapr: Call spapr_drc_reset() for all DRCs at CAS Date: Wed, 6 Jan 2021 14:38:04 +1100 Message-Id: <20210106033816.232598-11-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210106033816.232598-1-david@gibson.dropbear.id.au> References: <20210106033816.232598-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no 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: Daniel Henrique Barboza , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Non-transient DRCs are either in the empty or the ready state, which means spapr_drc_reset() doesn't change their state. It is thus not needed to do any checking. Call spapr_drc_reset() unconditionally and squash spapr_drc_transient() into its only user, spapr_drc_needed(). Signed-off-by: Greg Kurz Message-Id: <20201218103400.689660-2-groug@kaod.org> Reviewed-by: Daniel Henrique Barboza Tested-by: Daniel Henrique Barboza Signed-off-by: David Gibson --- hw/ppc/spapr_drc.c | 8 ++------ hw/ppc/spapr_hcall.c | 7 ++++--- include/hw/ppc/spapr_drc.h | 3 --- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c index fc7e321fcd..8d62f55066 100644 --- a/hw/ppc/spapr_drc.c +++ b/hw/ppc/spapr_drc.c @@ -462,8 +462,9 @@ static const VMStateDescription vmstate_spapr_drc_unplug_requested = { } }; -bool spapr_drc_transient(SpaprDrc *drc) +static bool spapr_drc_needed(void *opaque) { + SpaprDrc *drc = opaque; SpaprDrcClass *drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc); /* @@ -483,11 +484,6 @@ bool spapr_drc_transient(SpaprDrc *drc) spapr_drc_unplug_requested(drc); } -static bool spapr_drc_needed(void *opaque) -{ - return spapr_drc_transient(opaque); -} - static const VMStateDescription vmstate_spapr_drc = { .name = "spapr_drc", .version_id = 1, diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index c0ea0bd579..4e9d50c254 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -1650,9 +1650,10 @@ static void spapr_handle_transient_dev_before_cas(SpaprMachineState *spapr) prop->name, &error_abort)); - if (spapr_drc_transient(drc)) { - spapr_drc_reset(drc); - } + /* + * This will complete any pending plug/unplug requests. + */ + spapr_drc_reset(drc); } spapr_clear_pending_hotplug_events(spapr); diff --git a/include/hw/ppc/spapr_drc.h b/include/hw/ppc/spapr_drc.h index def3593adc..cff5e707d0 100644 --- a/include/hw/ppc/spapr_drc.h +++ b/include/hw/ppc/spapr_drc.h @@ -244,9 +244,6 @@ int spapr_dt_drc(void *fdt, int offset, Object *owner, uint32_t drc_type_mask); void spapr_drc_attach(SpaprDrc *drc, DeviceState *d); void spapr_drc_detach(SpaprDrc *drc); -/* Returns true if a hot plug/unplug request is pending */ -bool spapr_drc_transient(SpaprDrc *drc); - static inline bool spapr_drc_unplug_requested(SpaprDrc *drc) { return drc->unplug_requested;