From patchwork Thu May 30 18:40:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andrew Cooper X-Patchwork-Id: 13680674 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 3024BC25B7E for ; Thu, 30 May 2024 18:40:48 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.732959.1139032 (Exim 4.92) (envelope-from ) id 1sCkhZ-0004v6-C0; Thu, 30 May 2024 18:40:37 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 732959.1139032; Thu, 30 May 2024 18:40:37 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sCkhZ-0004tc-57; Thu, 30 May 2024 18:40:37 +0000 Received: by outflank-mailman (input) for mailman id 732959; Thu, 30 May 2024 18:40:35 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1sCkhX-0004ea-TO for xen-devel@lists.xenproject.org; Thu, 30 May 2024 18:40:35 +0000 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [2a00:1450:4864:20::634]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 195f3364-1eb4-11ef-b4bb-af5377834399; Thu, 30 May 2024 20:40:34 +0200 (CEST) Received: by mail-ej1-x634.google.com with SMTP id a640c23a62f3a-a6266ffdba8so94041966b.1 for ; Thu, 30 May 2024 11:40:34 -0700 (PDT) Received: from andrew-laptop.citrite.net ([217.156.233.157]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a67e6f02d29sm4086666b.14.2024.05.30.11.40.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 May 2024 11:40:32 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 195f3364-1eb4-11ef-b4bb-af5377834399 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=citrix.com; s=google; t=1717094433; x=1717699233; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=JuATIEzMZcMO0sma4DN6PPyKFK9rWyN48A84jE2N8B4=; b=dVMD198jeziMqpU+HVNRBi0zdyMUDQ/QNvF11a0Pi/xmoTFpXHcy13BZdMwjToKyP/ ITiJ9AxlN3Beub9z4ZMv384DzTuqls09lAFw5ydb8vawHnrk/ct6ZPjK+Y71iM7BgN1j hB5SrCLNCtgFCdvbupmH1tF4orj7znBaEUaRA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717094433; x=1717699233; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=JuATIEzMZcMO0sma4DN6PPyKFK9rWyN48A84jE2N8B4=; b=H37o9fCFKDHEuRErTBIhpDKDrNQhukbW3UWe3zUrSCjMTfEfmvNgp6JTaw3GfADMqi SrOfrTqa343BhA8zW52pBB0ME1Fcj+tdZ4yavdwdrvnEq8QPgTwxhb/D05KDDGwT/MQT VLPvjClc+uBBrCJd0xNFtaE8qjUYR3uEdWa8FJj37LvQV9aBJVw7tQX4tgqBGQgPWGB9 Ad449JJxiH6MVS/cqYBAArLI+hMlkICEk4Fo/1AfI91A7r5EHbuwx8GZLR5GhOF6v8bU Hd1lgEi+yEEMvqXyli8UsoCCLnCmdQ0LvAd9xJ6uHbnFespUWA9Ova5+cJMVt/8/ux0x SbPw== X-Gm-Message-State: AOJu0YzxupP51+uTbcgrPBEYTWOU/q7WtqYbyNpo4Nsk3c6EzrFBDRc8 1f809OjIZWUW2lNE2mZQGrNHsoDn1qEXips5mzdyBIDlivtrPC8JsgUl6T6rKC+5NLPvP1KrCzY T X-Google-Smtp-Source: AGHT+IHI7hSinh5KOPtR5MaVfNKKi6KsCTPQWGoxfcps63uJaoA2hCPyH6LCOpUNr5QWhTyaxvVRbw== X-Received: by 2002:a17:906:7f8e:b0:a62:a63c:18f0 with SMTP id a640c23a62f3a-a65e8d12070mr192357266b.1.1717094433363; Thu, 30 May 2024 11:40:33 -0700 (PDT) From: Andrew Cooper To: Xen-devel Cc: Andrew Cooper , Jan Beulich , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Stefano Stabellini , Julien Grall , Volodymyr Babchuk , Bertrand Marquis , Oleksii Kurochko , Shawn Anastasio Subject: [PATCH 2/2] arch/irq: Centralise no_irq_type Date: Thu, 30 May 2024 19:40:27 +0100 Message-Id: <20240530184027.44609-3-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240530184027.44609-1-andrew.cooper3@citrix.com> References: <20240530184027.44609-1-andrew.cooper3@citrix.com> MIME-Version: 1.0 Having no_irq_type defined per arch, but using common callbacks is a mess, and particualrly hard to bootstrap a new architecture with. Now that the ack()/end() hooks have been exported suitably, move the definition of no_irq_type into common/irq.c, and into .rodata for good measure. No functional change, but a whole lot less tangled. Signed-off-by: Andrew Cooper Acked-by: Julien Grall Acked-by: Shawn Anastasio --- CC: Jan Beulich CC: Roger Pau Monné CC: Stefano Stabellini CC: Julien Grall CC: Volodymyr Babchuk CC: Bertrand Marquis CC: Oleksii Kurochko CC: Shawn Anastasio Oleksii: For RISC-V, you should only need to provide a irq_ack_none() stub now. --- xen/arch/arm/irq.c | 10 ---------- xen/arch/ppc/stubs.c | 9 --------- xen/arch/x86/irq.c | 9 --------- xen/common/irq.c | 13 +++++++++++++ xen/include/xen/irq.h | 2 +- 5 files changed, 14 insertions(+), 29 deletions(-) diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c index 7138f9e7c283..e5fb26a3de2d 100644 --- a/xen/arch/arm/irq.c +++ b/xen/arch/arm/irq.c @@ -45,16 +45,6 @@ void irq_end_none(struct irq_desc *irq) gic_hw_ops->gic_host_irq_type->end(irq); } -hw_irq_controller no_irq_type = { - .typename = "none", - .startup = irq_startup_none, - .shutdown = irq_shutdown_none, - .enable = irq_enable_none, - .disable = irq_disable_none, - .ack = irq_ack_none, - .end = irq_end_none -}; - static irq_desc_t irq_desc[NR_IRQS]; static DEFINE_PER_CPU(irq_desc_t[NR_LOCAL_IRQS], local_irq_desc); diff --git a/xen/arch/ppc/stubs.c b/xen/arch/ppc/stubs.c index 4e03428e071a..923f0e7b2095 100644 --- a/xen/arch/ppc/stubs.c +++ b/xen/arch/ppc/stubs.c @@ -139,15 +139,6 @@ void irq_ack_none(struct irq_desc *desc) BUG_ON("unimplemented"); } -hw_irq_controller no_irq_type = { - .typename = "none", - .startup = irq_startup_none, - .shutdown = irq_shutdown_none, - .enable = irq_enable_none, - .disable = irq_disable_none, - .ack = irq_ack_none, -}; - int arch_init_one_irq_desc(struct irq_desc *desc) { BUG_ON("unimplemented"); diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c index cfd7a08479d2..e36e06deaa68 100644 --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -472,15 +472,6 @@ void cf_check irq_ack_none(struct irq_desc *desc) ack_bad_irq(desc->irq); } -hw_irq_controller no_irq_type = { - "none", - irq_startup_none, - irq_shutdown_none, - irq_enable_none, - irq_disable_none, - irq_ack_none, -}; - static vmask_t *irq_get_used_vector_mask(int irq) { vmask_t *ret = NULL; diff --git a/xen/common/irq.c b/xen/common/irq.c index 7225b4637486..29729349a6f2 100644 --- a/xen/common/irq.c +++ b/xen/common/irq.c @@ -3,6 +3,19 @@ DEFINE_PER_CPU(const struct cpu_user_regs *, irq_regs); +const hw_irq_controller no_irq_type = { + .typename = "none", + .startup = irq_startup_none, + .shutdown = irq_shutdown_none, + .enable = irq_enable_none, + .disable = irq_disable_none, + .ack = irq_ack_none, + +#ifdef irq_end_none /* Hook is optional per arch */ + .end = irq_end_none, +#endif +}; + int init_one_irq_desc(struct irq_desc *desc) { int err; diff --git a/xen/include/xen/irq.h b/xen/include/xen/irq.h index b71f65db8621..327cd2217c7e 100644 --- a/xen/include/xen/irq.h +++ b/xen/include/xen/irq.h @@ -122,7 +122,7 @@ extern int request_irq(unsigned int irq, unsigned int irqflags, void (*handler)(int irq, void *dev_id), const char *devname, void *dev_id); -extern hw_irq_controller no_irq_type; +extern const hw_irq_controller no_irq_type; void cf_check no_action(int cpl, void *dev_id); unsigned int cf_check irq_startup_none(struct irq_desc *desc); void cf_check irq_actor_none(struct irq_desc *desc);