From patchwork Thu Jan 31 14:58:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Thierry X-Patchwork-Id: 10790769 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F196746 for ; Thu, 31 Jan 2019 15:04:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 080BA2C84C for ; Thu, 31 Jan 2019 15:04:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0635530E66; Thu, 31 Jan 2019 15:04:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 9BDB830346 for ; Thu, 31 Jan 2019 15:04:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=oSnXsUOM4uN10oKdTDG7sba4NwdJFYKZDV2PDYtPZyk=; b=Ft40Tpo+xUNBihF9UyDZ3O8xGx xjADAA8NVPpalDyDO48j9B3+7E6m+Bxiw5JD9dLfyRPGxZDBsMWIPsQlgHfA9JCc33TBVpRWdBcEb ciGwh9bNjs+Z+slOxW83TJ2r7kvtFEdyGSR1mhU6sKDuQrWJFzOh0p3nNxSlJc/jxnPQqnbvuT8fz 6EeH2o7/Drk7UvGXasKAnRndYoTBIDjrjHt+y2XfA7cB71FeTgZScA4PHQKHDFtKJnVMQcw99Y0h1 JxiR7YUFE7jUMQ5DY5J/1CaN0q1n9LrmWz6sP4yXEvcFEy8csJZV/bzaN2Su1jtuxB8nB16t+Wc0U jyAtpgkg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gpDsx-00035X-N1; Thu, 31 Jan 2019 15:04:11 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gpDot-0006jd-7n for linux-arm-kernel@lists.infradead.org; Thu, 31 Jan 2019 15:00:37 +0000 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 CE1B0EBD; Thu, 31 Jan 2019 06:59:58 -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 D579E3F59C; Thu, 31 Jan 2019 06:59:56 -0800 (PST) From: Julien Thierry To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v10 18/25] arm64: gic-v3: Implement arch support for priority masking Date: Thu, 31 Jan 2019 14:58:56 +0000 Message-Id: <1548946743-38979-19-git-send-email-julien.thierry@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1548946743-38979-1-git-send-email-julien.thierry@arm.com> References: <1548946743-38979-1-git-send-email-julien.thierry@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190131_070000_018180_C5F8E515 X-CRM114-Status: GOOD ( 12.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, daniel.thompson@linaro.org, Julien Thierry , marc.zyngier@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, christoffer.dall@arm.com, james.morse@arm.com, joel@joelfernandes.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Implement architecture specific primitive allowing the GICv3 driver to use priorities to mask interrupts. Signed-off-by: Julien Thierry Suggested-by: Daniel Thompson Acked-by: Marc Zyngier Cc: Marc Zyngier Cc: Catalin Marinas Cc: Will Deacon --- arch/arm64/include/asm/arch_gicv3.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h index b5f8142..14b41dd 100644 --- a/arch/arm64/include/asm/arch_gicv3.h +++ b/arch/arm64/include/asm/arch_gicv3.h @@ -22,6 +22,7 @@ #ifndef __ASSEMBLY__ +#include #include #include #include @@ -162,14 +163,13 @@ static inline bool gic_prio_masking_enabled(void) static inline void gic_pmr_mask_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + BUILD_BUG_ON(GICD_INT_DEF_PRI <= GIC_PRIO_IRQOFF); + gic_write_pmr(GIC_PRIO_IRQOFF); } static inline void gic_arch_enable_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + asm volatile ("msr daifclr, #2" : : : "memory"); } #endif /* __ASSEMBLY__ */