From patchwork Wed Sep 20 03:55:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu-Chien Peter Lin X-Patchwork-Id: 13392070 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EFD12CE79AD for ; Wed, 20 Sep 2023 03:56:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Yi3kCed0/VCWbmqljkpAz9w6fvvsvPPgukIcQCyt6pg=; b=BMjuW+pwAlCLYG eiI0FYM/gmycNd4GHH7laLvSwBlS2I5uVlQc57V6da4RfuS/1/S62itWjwx3XNEnx9AQsxn8HMUoR HLe4RHgP3kMaH83+WSV5NVipWXz7j+EGjlVf2nkLsTtQmqtaxz4nrZ0x2Ms0vr9tal6VIpDVdBxVa 5eDOXP+cQc2a46OwK1q9pyK6KrjDsnpTEicD39D6sNU/OSdQEBuy2NfW7XzlTCcf67xNZk6D1tpFN 0PKO/IsUH2xLNAF7kFq5s/SXsP0jiGOhtFQxMtz7KQCtDtMg7oozh8/DGZcEnCfMB7pNabCkl6oGk W5EpO+o8ha9W1wXghkXQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qioKF-001mCP-2S; Wed, 20 Sep 2023 03:56:31 +0000 Received: from 60-248-80-70.hinet-ip.hinet.net ([60.248.80.70] helo=Atcsqr.andestech.com) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qioKC-001mAi-2L for linux-riscv@lists.infradead.org; Wed, 20 Sep 2023 03:56:30 +0000 Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 38K3tjEw069442; Wed, 20 Sep 2023 11:55:45 +0800 (+08) (envelope-from peterlin@andestech.com) Received: from atctrx.andestech.com (10.0.15.173) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Wed, 20 Sep 2023 11:55:41 +0800 From: Yu Chien Peter Lin To: , , , , , , , , CC: , Yu Chien Peter Lin Subject: [PATCH v3 2/3] riscv: Introduce PBMT field to PTDUMP Date: Wed, 20 Sep 2023 11:55:21 +0800 Message-ID: <20230920035522.3180558-2-peterlin@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230920035522.3180558-1-peterlin@andestech.com> References: <20230920035522.3180558-1-peterlin@andestech.com> MIME-Version: 1.0 X-Originating-IP: [10.0.15.173] X-DNSRBL: X-MAIL: Atcsqr.andestech.com 38K3tjEw069442 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230919_205629_198063_651CAFF8 X-CRM114-Status: GOOD ( 10.91 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org This patch introduces the PBMT field to the PTDUMP, so it can display the memory attributes for NC or IO. Signed-off-by: Yu Chien Peter Lin Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti --- Changes v1 -> v2 - no change Changes v2 -> v3 - Add ".." when PBMT field is clear --- arch/riscv/mm/ptdump.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c index 57a0926c6627..13997cf3fe36 100644 --- a/arch/riscv/mm/ptdump.c +++ b/arch/riscv/mm/ptdump.c @@ -135,6 +135,12 @@ struct prot_bits { static const struct prot_bits pte_bits[] = { { +#ifdef CONFIG_64BIT + .mask = _PAGE_MTMASK_SVPBMT, + .set = "MT(%s)", + .clear = " .. ", + }, { +#endif .mask = _PAGE_SOFT, .set = "RSW(%d)", .clear = " .. ", @@ -205,6 +211,16 @@ static void dump_prot(struct pg_state *st) if (val) { if (pte_bits[i].mask == _PAGE_SOFT) sprintf(s, pte_bits[i].set, val >> 8); +#ifdef CONFIG_64BIT + else if (pte_bits[i].mask == _PAGE_MTMASK_SVPBMT) { + if (val == _PAGE_NOCACHE_SVPBMT) + sprintf(s, pte_bits[i].set, "NC"); + else if (val == _PAGE_IO_SVPBMT) + sprintf(s, pte_bits[i].set, "IO"); + else + sprintf(s, pte_bits[i].set, "??"); + } +#endif else sprintf(s, "%s", pte_bits[i].set); } else {