Message ID | 20190426060627.18153-37-david@gibson.dropbear.id.au |
---|---|
State | New |
Headers | show
Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="BtfV+qHJ"; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44r3vD16mHz9s3l for <incoming@patchwork.ozlabs.org>; Fri, 26 Apr 2019 16:25:12 +1000 (AEST) Received: from localhost ([127.0.0.1]:40153 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>) id 1hJuII-0006ld-3d for incoming@patchwork.ozlabs.org; Fri, 26 Apr 2019 02:25:10 -0400 Received: from eggs.gnu.org ([209.51.188.92]:60685) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <dgibson@ozlabs.org>) id 1hJu1K-0006Rx-Vf for qemu-devel@nongnu.org; Fri, 26 Apr 2019 02:07:40 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <dgibson@ozlabs.org>) id 1hJu1J-0005ed-Vs for qemu-devel@nongnu.org; Fri, 26 Apr 2019 02:07:38 -0400 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:47081 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from <dgibson@ozlabs.org>) id 1hJu1J-00051z-IY; Fri, 26 Apr 2019 02:07:37 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 44r3Tq4TZ6z9sNr; Fri, 26 Apr 2019 16:06:39 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1556258799; bh=M9tGNO0CMBlakuYj8vyjTCfUIkj2mawnuCKyR78PxHI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BtfV+qHJqaUc0YgHAp7Do9Hzehx3XGJwIlwAKAoZJ9nyj5WyQcE88YUWOxsYNMIoc ov33HhDnAdTNzuWwWX9ZJ+0GEKfrjuZXdc73Jv8OIsBwDTH502YKgj8+6/JIZ5VKHk ujRta+8jYUzi5LqzjVxJ9tJgQNTYQ7Cflt34UfD0= From: David Gibson <david@gibson.dropbear.id.au> To: peter.maydell@linaro.org Date: Fri, 26 Apr 2019 16:06:27 +1000 Message-Id: <20190426060627.18153-37-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190426060627.18153-1-david@gibson.dropbear.id.au> References: <20190426060627.18153-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2401:3900:2:1::2 Subject: [Qemu-devel] [PULL 36/36] target/ppc: improve performance of large BAT invalidations X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: gkurz@kaod.org, qemu-devel@nongnu.org, =?utf-8?q?Herv=C3=A9_Poussineau?= <hpoussin@reactos.org>, clg@kaod.org, qemu-ppc@nongnu.org, Artyom Tarasenko <atar4qemu@gmail.com>, David Gibson <david@gibson.dropbear.id.au> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
[PULL,01/36] spapr: Support NVIDIA V100 GPU with NVLink2
|
expand
|
diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c index d226b35739..1dbc9acb75 100644 --- a/target/ppc/mmu_helper.c +++ b/target/ppc/mmu_helper.c @@ -1820,6 +1820,13 @@ static inline void do_invalidate_BAT(CPUPPCState *env, target_ulong BATu, base = BATu & ~0x0001FFFF; end = base + mask + 0x00020000; + if (((end - base) >> TARGET_PAGE_BITS) > 1024) { + /* Flushing 1024 4K pages is slower than a complete flush */ + LOG_BATS("Flush all BATs\n"); + tlb_flush(CPU(cs)); + LOG_BATS("Flush done\n"); + return; + } LOG_BATS("Flush BAT from " TARGET_FMT_lx " to " TARGET_FMT_lx " (" TARGET_FMT_lx ")\n", base, end, mask); for (page = base; page != end; page += TARGET_PAGE_SIZE) {