From patchwork Tue Oct 24 15:18:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King \(Oracle\)" X-Patchwork-Id: 737591 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 4141031A89; Tue, 24 Oct 2023 15:18:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="RXKzMk8n" Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 393011FF5; Tue, 24 Oct 2023 08:18:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=7mUed4j6JYeBkSblH2nqcvZsQbChg0c7FCSaYvctrZY=; b=RXKzMk8nxqLsHr4DrG64vwCDNl L1dBvNRAboxbtvs9cSI1KCnV0hnPEd7IW2lznQwfui6jPeu3MJ5AAq2UCyu6FgD+8x2iGNf4iDs5W Hw2gX7LecqKIJFAwAF1BKt8bxa1WBrvQMwLcjVSAzi89+ncVyvzw0koZvYsmjNUkGg+jRIE5r3U5x orHxHls/n75Zzq/kBkYtZ0EOZfE8GldZzqesp2T03cpK4YGxXTcZiQmUuT5AYQwhg5tvCo9L0tXt9 NbmL3Te3xKJ1+ljcRqR+ihf1KD34wlPyBSMmb4jpyIB5r1SctfT0r+pSXWkYCf0HEW9QvzvWn9Ogc wAFyW+YA==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:44454 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1qvJB9-0004VJ-12; Tue, 24 Oct 2023 16:18:47 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1qvJBA-00AqRq-QW; Tue, 24 Oct 2023 16:18:48 +0100 In-Reply-To: References: From: Russell King (Oracle) To: linux-pm@vger.kernel.org, loongarch@lists.linux.dev, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, kvmarm@lists.linux.dev, x86@kernel.org, linux-csky@vger.kernel.org, linux-doc@vger.kernel.org, linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org Cc: Salil Mehta , Jean-Philippe Brucker , jianyong.wu@arm.com, justin.he@arm.com, James Morse , "Rafael J. Wysocki" , Len Brown , Robert Moore , acpica-devel@lists.linuxfoundation.org Subject: [PATCH 31/39] ACPICA: Add new MADT GICC flags fields Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Tue, 24 Oct 2023 16:18:48 +0100 From: James Morse Add the new flag field to the MADT's GICC structure. 'Online Capable' indicates a disabled CPU can be enabled later. See ACPI specification 6.5 Tabel 5.37: GICC CPU Interface Flags. Signed-off-by: James Morse --- This patch probably needs to go via the upstream acpica project, but is included here so the feature can be tested. If the ACPICA header files are updated before merging this patch set, this patch will need to be dropped. Changes since RFC v2: * Add ACPI specification reference. --- include/acpi/actbl2.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 3751ae69432f..c433a079d8e1 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -1046,6 +1046,7 @@ struct acpi_madt_generic_interrupt { /* ACPI_MADT_ENABLED (1) Processor is usable if set */ #define ACPI_MADT_PERFORMANCE_IRQ_MODE (1<<1) /* 01: Performance Interrupt Mode */ #define ACPI_MADT_VGIC_IRQ_MODE (1<<2) /* 02: VGIC Maintenance Interrupt mode */ +#define ACPI_MADT_GICC_CPU_CAPABLE (1<<3) /* 03: CPU is online capable */ /* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */