From patchwork Mon Dec 16 14:12:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hogan X-Patchwork-Id: 3354181 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0E721C0D4A for ; Mon, 16 Dec 2013 14:14:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5933F20177 for ; Mon, 16 Dec 2013 14:14:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1D27020155 for ; Mon, 16 Dec 2013 14:14:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754219Ab3LPOOp (ORCPT ); Mon, 16 Dec 2013 09:14:45 -0500 Received: from multi.imgtec.com ([194.200.65.239]:37097 "EHLO multi.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753952Ab3LPOOo (ORCPT ); Mon, 16 Dec 2013 09:14:44 -0500 From: James Hogan To: CC: , Aurelien Jarno , Gleb Natapov , Paolo Bonzini , Sanjay Lal , James Hogan Subject: [PATCH v2 03/10] target-mips: get_physical_address: Add defines for segment bases Date: Mon, 16 Dec 2013 14:12:38 +0000 Message-ID: <1387203165-5553-4-git-send-email-james.hogan@imgtec.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1387203165-5553-1-git-send-email-james.hogan@imgtec.com> References: <1387203165-5553-1-git-send-email-james.hogan@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [192.168.154.65] X-SEF-Processed: 7_3_0_01192__2013_12_16_14_14_43 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 Add preprocessor definitions for 32bit segment bases for use in get_physical_address(). These will also be taken advantage of in the next patch which adds KVM awareness. Signed-off-by: James Hogan Cc: Aurelien Jarno Reviewed-by: Aurelien Jarno --- target-mips/helper.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/target-mips/helper.c b/target-mips/helper.c index 33e0e88..2e96655 100644 --- a/target-mips/helper.c +++ b/target-mips/helper.c @@ -118,7 +118,13 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, qemu_log("user mode %d h %08x\n", user_mode, env->hflags); #endif - if (address <= (int32_t)0x7FFFFFFFUL) { +#define USEG_LIMIT 0x7FFFFFFFUL +#define KSEG0_BASE 0x80000000UL +#define KSEG1_BASE 0xA0000000UL +#define KSEG2_BASE 0xC0000000UL +#define KSEG3_BASE 0xE0000000UL + + if (address <= USEG_LIMIT) { /* useg */ if (env->CP0_Status & (1 << CP0St_ERL)) { *physical = address & 0xFFFFFFFF; @@ -160,23 +166,23 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, ret = TLBRET_BADADDR; } #endif - } else if (address < (int32_t)0xA0000000UL) { + } else if (address < (int32_t)KSEG1_BASE) { /* kseg0 */ if (kernel_mode) { - *physical = address - (int32_t)0x80000000UL; + *physical = address - (int32_t)KSEG0_BASE; *prot = PAGE_READ | PAGE_WRITE; } else { ret = TLBRET_BADADDR; } - } else if (address < (int32_t)0xC0000000UL) { + } else if (address < (int32_t)KSEG2_BASE) { /* kseg1 */ if (kernel_mode) { - *physical = address - (int32_t)0xA0000000UL; + *physical = address - (int32_t)KSEG1_BASE; *prot = PAGE_READ | PAGE_WRITE; } else { ret = TLBRET_BADADDR; } - } else if (address < (int32_t)0xE0000000UL) { + } else if (address < (int32_t)KSEG3_BASE) { /* sseg (kseg2) */ if (supervisor_mode || kernel_mode) { ret = env->tlb->map_address(env, physical, prot, address, rw, access_type);