From patchwork Tue Nov 29 15:43:50 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?C=C3=A9dric_Le_Goater?= X-Patchwork-Id: 700607 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tSp764N1Fz9vDk for ; Wed, 30 Nov 2016 02:56:02 +1100 (AEDT) Received: from localhost ([::1]:37748 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cBklD-0006tx-RA for incoming@patchwork.ozlabs.org; Tue, 29 Nov 2016 10:55:59 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39558) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cBkc6-0007PH-57 for qemu-devel@nongnu.org; Tue, 29 Nov 2016 10:46:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cBkc2-0005H2-2p for qemu-devel@nongnu.org; Tue, 29 Nov 2016 10:46:34 -0500 Received: from 19.mo1.mail-out.ovh.net ([178.32.97.206]:45690) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cBkc1-0005GS-TN for qemu-devel@nongnu.org; Tue, 29 Nov 2016 10:46:30 -0500 Received: from player795.ha.ovh.net (b9.ovh.net [213.186.33.59]) by mo1.mail-out.ovh.net (Postfix) with ESMTP id 4698D1F410 for ; Tue, 29 Nov 2016 16:46:28 +0100 (CET) Received: from hermes.lab.toulouse-stg.fr.ibm.com (deibp9eh1--blueice2n7.emea.ibm.com [195.212.29.169]) (Authenticated sender: clg@kaod.org) by player795.ha.ovh.net (Postfix) with ESMTPSA id 98779120079; Tue, 29 Nov 2016 16:46:20 +0100 (CET) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: Peter Maydell Date: Tue, 29 Nov 2016 16:43:50 +0100 Message-Id: <1480434248-27138-13-git-send-email-clg@kaod.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480434248-27138-1-git-send-email-clg@kaod.org> References: <1480434248-27138-1-git-send-email-clg@kaod.org> MIME-Version: 1.0 X-Ovh-Tracer-Id: 11733002930373823249 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeelfedrfeejgddvtdelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 178.32.97.206 Subject: [Qemu-devel] [PATCH for-2.9 12/30] aspeed/smc: improve segment register support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Crosthwaite , Andrew Jeffery , Marcin Krzeminski , qemu-devel@nongnu.org, qemu-arm@nongnu.org, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The HW does not enforce all the rules in the specs and allows a few "curious" setups like zero size segments and overlaps. So change the model to be in sync but keep the warnings which are always interesting for debug. Signed-off-by: Cédric Le Goater Reviewed-by: Joel Stanley --- hw/ssi/aspeed_smc.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/hw/ssi/aspeed_smc.c b/hw/ssi/aspeed_smc.c index 6e8403ebc246..78f5aed53247 100644 --- a/hw/ssi/aspeed_smc.c +++ b/hw/ssi/aspeed_smc.c @@ -253,7 +253,8 @@ static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs, qemu_log_mask(LOG_GUEST_ERROR, "%s: Tried to change CS0 start address to 0x%" HWADDR_PRIx "\n", s->ctrl->name, seg.addr); - return; + seg.addr = s->ctrl->flash_window_base; + new = aspeed_smc_segment_to_reg(&seg); } /* @@ -267,8 +268,10 @@ static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs, s->ctrl->segments[cs].size) { qemu_log_mask(LOG_GUEST_ERROR, "%s: Tried to change CS%d end address to 0x%" - HWADDR_PRIx "\n", s->ctrl->name, cs, seg.addr); - return; + HWADDR_PRIx "\n", s->ctrl->name, cs, seg.addr + seg.size); + seg.size = s->ctrl->segments[cs].addr + s->ctrl->segments[cs].size - + seg.addr; + new = aspeed_smc_segment_to_reg(&seg); } /* Keep the segment in the overall flash window */ @@ -281,16 +284,14 @@ static void aspeed_smc_flash_set_segment(AspeedSMCState *s, int cs, } /* Check start address vs. alignment */ - if (seg.addr % seg.size) { + if (seg.size && !QEMU_IS_ALIGNED(seg.addr, seg.size)) { qemu_log_mask(LOG_GUEST_ERROR, "%s: new segment for CS%d is not " "aligned : [ 0x%"HWADDR_PRIx" - 0x%"HWADDR_PRIx" ]\n", s->ctrl->name, cs, seg.addr, seg.addr + seg.size); } - /* And segments should not overlap */ - if (aspeed_smc_flash_overlap(s, &seg, cs)) { - return; - } + /* And segments should not overlap (in the specs) */ + aspeed_smc_flash_overlap(s, &seg, cs); /* All should be fine now to move the region */ memory_region_transaction_begin();