From mboxrd@z Thu Jan 1 00:00:00 1970 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 D6E8FCD6E60 for ; Mon, 1 Jun 2026 21:59:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:Cc:To:From: Subject:Message-ID:References:Mime-Version:In-Reply-To:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=bXqkopj6Oh5WtyGQaum1YKVEZGGYYtaMkCtOohru3Bs=; b=zm1qyYq/dkmQ4qMPeQH4RdF9qq FGWC4xa7uvxgsTSyy+J8ucmHzAwFYb3dKS7pPXZQol5LnhWdGLxBLDJOhNGwWMoKmqAi0J4gRKJwK NNb8uC3/+vhYcTsdAwD0frFHIiVC9rNj9CxeSqJMWqS+v+bvXcoj+VwL0wsaMvsub3VxsBRxK6OKx ntcClU1itkcakZKvf7qIW+IhkzDf6aD395xB+9hPGtp2YMXES6J8BmCrd50K0qm92qxW4s3xLQxEx tRyrHFA41o5/280QThcdc+90wRfooYlLDZ8CWOwefqC6kyGMXnQWHvrWfQDbkv0Pn5YQB6wY0tjGj A98LUTUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUAfM-0000000BtJL-1iss; Mon, 01 Jun 2026 21:59:24 +0000 Received: from mail-pj1-x104a.google.com ([2607:f8b0:4864:20::104a]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUAfK-0000000BtGJ-19zR for linux-arm-kernel@lists.infradead.org; Mon, 01 Jun 2026 21:59:23 +0000 Received: by mail-pj1-x104a.google.com with SMTP id 98e67ed59e1d1-36d99333358so1689805a91.3 for ; Mon, 01 Jun 2026 14:59:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1780351160; x=1780955960; darn=lists.infradead.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=bXqkopj6Oh5WtyGQaum1YKVEZGGYYtaMkCtOohru3Bs=; b=aCS4rDs64IfFst+9gXygvJp6i1kHfF6ugo7gXhRIb1M5AZ87aggXibxIQK2Ist3MHd YvPOWTNKFlR/UC/RLgzcdzsUbIYYNBuzy6P/Wlxus+XilrGf7bJcROeMsmt8CSbJI5g6 +ozhnkeU9nazLj5ej0SJytl+ElM58hSSsfitWfM32FbTCHBD15jiPkVO8uqwLaXjIFBL pj7zDntQHWQFbpebRE9OHPcuBICLjUkOwLse6ceh6EVIX+d3Vgd9zcj9Kwj++N/uekWB 9hoZhwWeck8Vrlz3RzIZx6KxGXLVHiqKNQpfaGNa9JfBGzEkcD5THnnQNMhKwXdDEMhX TOeg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780351160; x=1780955960; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=bXqkopj6Oh5WtyGQaum1YKVEZGGYYtaMkCtOohru3Bs=; b=L3GnrH7daLTkWV+ImOfYqlezWLL01/ksOiYEhiKeYabR5XubK/l7MVtaJMiaBFcD79 xijG1Et6zvR+s8H/bDO/RspFrEn+OFeE5F8qU5HSUJI5MR4yPL0xHR4px0eLP4giR9HM UCgPfy6zBhLpRJG6+LRRSPbGGS80ONME8D1NSz5J7rkypY3MuHfbyOwqZ9gTIakzwTBa 3Af1SNm5Y4w8jn3JnokKiUVsoGUCGm4freXVQ5dWh3e9JO+cA3ZEopUtBWk3oqPtyzgS ccFrNuOguMDL/88bsN4sdR6EHv/yCrYhIUnGBkheQkFENSVTyjx+uwfNSgPpw5d9nvN5 oA4g== X-Forwarded-Encrypted: i=1; AFNElJ/RkCF77yAgwjPhbRlfbRkX9arn5HP6Rtlql6jqZ2Zi3mIyZBznxTtzf2uaNu1iStyUTW8HXqdxGe6El+FBMFRd@lists.infradead.org X-Gm-Message-State: AOJu0YwLKHnyE9QDidElDUThjhc1O81w2Oe0q7Alnla5yznHokL8j8lI YvFD17UNBgh5l2TvVE82ivTVRiPOaNI27naVz26c/GwTnzf6IJiimJUSm5BJSQOlglLxIzUSjhc 0EA== X-Received: from pgbct3.prod.google.com ([2002:a05:6a02:2103:b0:c73:fc44:8baf]) (user=praan job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:264e:b0:369:7433:2fe with SMTP id 98e67ed59e1d1-36c4ff25853mr12026633a91.6.1780351160239; Mon, 01 Jun 2026 14:59:20 -0700 (PDT) Date: Mon, 1 Jun 2026 21:59:01 +0000 In-Reply-To: <20260601215909.3958732-1-praan@google.com> Mime-Version: 1.0 References: <20260601215909.3958732-1-praan@google.com> X-Mailer: git-send-email 2.54.0.1013.g208068f2d8-goog Message-ID: <20260601215909.3958732-5-praan@google.com> Subject: [PATCH v8 04/12] iommu/tegra241-cmdqv: Restore PROD and CONS after resume From: Pranjal Shrivastava To: iommu@lists.linux.dev Cc: Will Deacon , Joerg Roedel , Robin Murphy , Jason Gunthorpe , Mostafa Saleh , Nicolin Chen , Daniel Mentz , Ashish Mhetre , linux-arm-kernel@lists.infradead.org, Pranjal Shrivastava Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260601_145922_339852_0E523660 X-CRM114-Status: GOOD ( 10.52 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Ashish Mhetre PROD and CONS indices for vcmdqs are getting set to 0 after resume. Because of this the vcmdq is not consuming commands after resume. Fix this by restoring PROD and CONS indices after resume from saved pointers. Reviewed-by: Nicolin Chen Signed-off-by: Ashish Mhetre Signed-off-by: Pranjal Shrivastava --- drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c index cb1e75e4ee91..866cae7b73e5 100644 --- a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c +++ b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c @@ -511,6 +511,8 @@ static int tegra241_vcmdq_hw_init(struct tegra241_vcmdq *vcmdq) /* Configure and enable VCMDQ */ writeq_relaxed(vcmdq->cmdq.q.q_base, REG_VCMDQ_PAGE1(vcmdq, BASE)); + writel_relaxed(vcmdq->cmdq.q.llq.prod, REG_VCMDQ_PAGE0(vcmdq, PROD)); + writel_relaxed(vcmdq->cmdq.q.llq.cons, REG_VCMDQ_PAGE0(vcmdq, CONS)); ret = vcmdq_write_config(vcmdq, VCMDQ_EN); if (ret) { -- 2.54.0.1013.g208068f2d8-goog