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pr=C From: Ayan Kumar Halder To: CC: , , , , , Ayan Kumar Halder Subject: [RFC PATCH v1 11/12] Arm: GICv3: Define macros to read/write 64 bit Date: Fri, 21 Oct 2022 16:31:27 +0100 Message-ID: <20221021153128.44226-12-ayankuma@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221021153128.44226-1-ayankuma@amd.com> References: <20221021153128.44226-1-ayankuma@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000B8EA:EE_|PH7PR12MB7235:EE_ X-MS-Office365-Filtering-Correlation-Id: 3b8cce88-def7-4af0-afa1-08dab3797bd4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(396003)(136003)(346002)(376002)(39860400002)(451199015)(46966006)(36840700001)(40470700004)(8936002)(316002)(26005)(2616005)(36860700001)(5660300002)(6666004)(336012)(70586007)(4326008)(8676002)(41300700001)(70206006)(1076003)(186003)(2906002)(40480700001)(36756003)(40460700003)(82310400005)(54906003)(81166007)(426003)(6916009)(356005)(47076005)(82740400003)(478600001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2022 15:32:37.5203 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3b8cce88-def7-4af0-afa1-08dab3797bd4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000B8EA.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7235 Defined readq_relaxed()/writeq_relaxed() to read and write 64 bit regs. This in turn calls readl_relaxed()/writel_relaxed() twice for the lower and upper 32 bits. Signed-off-by: Ayan Kumar Halder --- xen/arch/arm/include/asm/arm32/io.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/xen/arch/arm/include/asm/arm32/io.h b/xen/arch/arm/include/asm/arm32/io.h index 73a879e9fb..6a5f563fbc 100644 --- a/xen/arch/arm/include/asm/arm32/io.h +++ b/xen/arch/arm/include/asm/arm32/io.h @@ -80,10 +80,14 @@ static inline u32 __raw_readl(const volatile void __iomem *addr) __raw_readw(c)); __r; }) #define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \ __raw_readl(c)); __r; }) +#define readq_relaxed(c) ({ u64 __r = (le64_to_cpu(readl_relaxed(c+4)) << 32) | \ + readl_relaxed(c); __r; }) #define writeb_relaxed(v,c) __raw_writeb(v,c) #define writew_relaxed(v,c) __raw_writew((__force u16) cpu_to_le16(v),c) #define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c) +#define writeq_relaxed(v,c) writel_relaxed(((uint64_t)v&0xffffffff), c); \ + writel_relaxed((((uint64_t)v)>>32), (c+4)); #define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; }) #define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; })