From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 884D9C43610 for ; Mon, 12 Nov 2018 11:57:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 59E89223DD for ; Mon, 12 Nov 2018 11:57:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 59E89223DD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729710AbeKLVui (ORCPT ); Mon, 12 Nov 2018 16:50:38 -0500 Received: from foss.arm.com ([217.140.101.70]:34562 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729645AbeKLVuh (ORCPT ); Mon, 12 Nov 2018 16:50:37 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CF2EE1688; Mon, 12 Nov 2018 03:57:40 -0800 (PST) Received: from e112298-lin.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D64DD3F5A0; Mon, 12 Nov 2018 03:57:38 -0800 (PST) From: Julien Thierry To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, daniel.thompson@linaro.org, joel@joelfernandes.org, marc.zyngier@arm.com, christoffer.dall@arm.com, james.morse@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, Julien Thierry , Oleg Nesterov Subject: [PATCH v6 06/24] arm64: ptrace: Provide definitions for PMR values Date: Mon, 12 Nov 2018 11:56:57 +0000 Message-Id: <1542023835-21446-7-git-send-email-julien.thierry@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1542023835-21446-1-git-send-email-julien.thierry@arm.com> References: <1542023835-21446-1-git-send-email-julien.thierry@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce fixed values for PMR that are going to be used to mask and unmask interrupts by priority. These values are chosent in such a way that a single bit (GIC_PMR_UNMASKED_BIT) encodes the information whether interrupts are masked or not. Signed-off-by: Julien Thierry Suggested-by: Daniel Thompson Cc: Oleg Nesterov Cc: Catalin Marinas Cc: Will Deacon --- arch/arm64/include/asm/ptrace.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index fce22c4..ce6998c 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -25,6 +25,12 @@ #define CurrentEL_EL1 (1 << 2) #define CurrentEL_EL2 (2 << 2) +/* PMR values used to mask/unmask interrupts */ +#define GIC_PRIO_IRQON 0xf0 +#define GIC_PRIO_STATUS_SHIFT 6 +#define GIC_PRIO_STATUS_BIT (1 << GIC_PRIO_STATUS_SHIFT) +#define GIC_PRIO_IRQOFF (GIC_PRIO_IRQON ^ GIC_PRIO_STATUS_BIT) + /* Additional SPSR bits not exposed in the UABI */ #define PSR_IL_BIT (1 << 20) -- 1.9.1