From patchwork Thu Apr 21 08:18:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Murzin X-Patchwork-Id: 8897001 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id F3E249F457 for ; Thu, 21 Apr 2016 08:21:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 342EF200FF for ; Thu, 21 Apr 2016 08:21:05 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 549FB202F8 for ; Thu, 21 Apr 2016 08:21:04 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1at9pd-0007Ns-SK; Thu, 21 Apr 2016 08:19:25 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1at9pO-0007H8-4R for linux-arm-kernel@lists.infradead.org; Thu, 21 Apr 2016 08:19:10 +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 EBD0851C; Thu, 21 Apr 2016 01:17:32 -0700 (PDT) Received: from login1.euhpc.arm.com (login1.euhpc.arm.com [10.6.26.143]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id C54FD3F218; Thu, 21 Apr 2016 01:18:48 -0700 (PDT) From: Vladimir Murzin To: linux@arm.linux.org.uk Subject: [PATCH RFC 03/10] ARM: V7M: Add addresses for mem-mapped V7M cache operations Date: Thu, 21 Apr 2016 09:18:15 +0100 Message-Id: <1461226702-27160-4-git-send-email-vladimir.murzin@arm.com> X-Mailer: git-send-email 2.0.0 In-Reply-To: <1461226702-27160-1-git-send-email-vladimir.murzin@arm.com> References: <1461226702-27160-1-git-send-email-vladimir.murzin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160421_011910_194319_7AE80023 X-CRM114-Status: UNSURE ( 7.62 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -7.9 (-------) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mcoquelin.stm32@gmail.com, manabian@gmail.com, stefan@agner.ch, kbuild-all@01.org, kernel@pengutronix.de, linux-arm-kernel@lists.infradead.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-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jonathan Austin V7M implements cache operations similarly to V7A/R, however all operations are performed via memory-mapped IO instead of co-processor operations. This patch adds register definitions relevant to the V7M ARM architecture's cache architecture. Signed-off-by: Jonathan Austin Signed-off-by: Vladimir Murzin --- arch/arm/include/asm/v7m.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm/include/asm/v7m.h b/arch/arm/include/asm/v7m.h index 615781c..1fd775c 100644 --- a/arch/arm/include/asm/v7m.h +++ b/arch/arm/include/asm/v7m.h @@ -24,6 +24,9 @@ #define V7M_SCB_CCR 0x14 #define V7M_SCB_CCR_STKALIGN (1 << 9) +#define V7M_SCB_CCR_DC (1 << 16) +#define V7M_SCB_CCR_IC (1 << 17) +#define V7M_SCB_CCR_BP (1 << 18) #define V7M_SCB_SHPR2 0x1c #define V7M_SCB_SHPR3 0x20 @@ -47,6 +50,25 @@ #define EXC_RET_STACK_MASK 0x00000004 #define EXC_RET_THREADMODE_PROCESSSTACK 0xfffffffd +/* Cache related definitions */ + +#define V7M_SCB_CLIDR 0x78 /* Cache Level ID register */ +#define V7M_SCB_CTR 0x7c /* Cache Type register */ +#define V7M_SCB_CCSIDR 0x80 /* Cache size ID register */ +#define V7M_SCB_CSSELR 0x84 /* Cache size selection register */ + +/* Cache opeartions */ +#define V7M_SCB_ICIALLU 0x250 /* I-cache invalidate all to PoU */ +#define V7M_SCB_ICIMVAU 0x258 /* I-cache invalidate by MVA to PoU */ +#define V7M_SCB_DCIMVAC 0x25c /* D-cache invalidate by MVA to PoC */ +#define V7M_SCB_DCISW 0x260 /* D-cache invalidate by set-way */ +#define V7M_SCB_DCCMVAU 0x264 /* D-cache clean by MVA to PoU */ +#define V7M_SCB_DCCMVAC 0x268 /* D-cache clean by MVA to PoC */ +#define V7M_SCB_DCCSW 0x26c /* D-cache clean by set-way */ +#define V7M_SCB_DCCIMVAC 0x270 /* D-cache clean and invalidate by MVA to PoC */ +#define V7M_SCB_DCCISW 0x274 /* D-cache clean and invalidate by set-way */ +#define V7M_SCB_BPIALL 0x278 /* D-cache clean and invalidate by set-way */ + #ifndef __ASSEMBLY__ enum reboot_mode;