From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F1B126E6F4 for ; Mon, 26 Jan 2026 15:12:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769440332; cv=none; b=fxJY4j6ea8O8+gE+J47XaOA7K41u3gwP6N5jyb5hxd8b0V2Gggjdw/XKCLXZn19wFPbUJ53klsXin5E229dBBMCo8QedNWQWWv7jjjVv54OfJFMKZF6qR92I6mEVOkptWqZod5sOD6t32kNvdLsqj3GC1A3ii3qCiQI7XIKJbL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769440332; c=relaxed/simple; bh=8K4kf8T7S6NQBD/ROl0DQKPBAqq2YP31zP3Nyq6Yezw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=aBJQqzxbi2vSGUPWg1eDwdsDR7kU29p09v+2eIP5jif9S8rI6ZDdHYesdoQ5i6S+MDteUHauR1GT5isY7xuxm6gh/1tO4jpHvPQFnC6TcVjD4A2jxsBQS60rpZsyiGjoerqDsqHMyTmV4Vfwe/WKmJaLhNgiaqDxxLT/YVVJxBE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--praan.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Mymc6730; arc=none smtp.client-ip=209.85.215.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--praan.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Mymc6730" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b62da7602a0so2881841a12.2 for ; Mon, 26 Jan 2026 07:12:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1769440331; x=1770045131; darn=lists.linux.dev; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=G1AnEUCMxT70fiZLra2PBAU9BhA7GGWBpcFd8Vk7MRQ=; b=Mymc6730cDaXoEJ0AGbxwJMdS0e/UaRgZnpKlTJIBJGnlORn5X4w4Z+gbYybsRNdhW AR1vl+kOUFO5Q8YTfK9cH6p4TjNg8+4KKVJW2lyka5F0z6ZLwpDwTErtG0SilY0U1AxD aYoKEAsflgABOZRmrBXRZUvclvFXvTOFTEn0bU0oU5dDSEn7H4BAPmm1ySw6ORAKHoNn 2bbtWjiRDsnknbdqPX0MnUNIgWOBoANn2jnuUvTTiScNV/z5XdOdZUqb94w9ZfG2E4IF YaUCbdECne3YYQhkGdZprMYIXUsLI7H/FK68ag9NzTk7gYB70xvYV/zwrDabXrtnJYND U86Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769440331; x=1770045131; 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=G1AnEUCMxT70fiZLra2PBAU9BhA7GGWBpcFd8Vk7MRQ=; b=m1gtal4l80SRSZ649hRMlExTxZgw9OrWCJvncEd3UPL0oge6btS38f4B0eypVHuCwA AesdQ7mSZJsesM89G9Lq6yAUSREYvkFhlVlyGcgaj3JK8wsQP836Qse7XD3t7JvILIdP dqzs8Z5Uf3F4xJT37TK8LBJDeByNrHGETl2L1zvEN+fqVhk6kER/CCpDS8YUCLVQigvM K/i7ti9GfcTaru5mDfqFjHFwCEVkZVPuoDIMdlNG3N00oJmMWHe/KlL0YryElfcmCoVc /ccoq8uWEkTobXvbvQ1Z02WlHHK8DPaadR5/Jjck12zIxDh23ja9/N9ngGCYi6P/aAaj qo7w== X-Gm-Message-State: AOJu0YzDSkye7qbmgi4M1JOUMKdPVeu/MlU0UdVXhlCYqQ3lr8Qo9oAy 4cJMwp5UNtUj2UmJ8mvVPlseVDVx8z4JZI7yxnr7xqfcGcDI5wz/KmrvLVVwEU8QmoAmSe0z1+k PNh8H4NMFkndAaoud9clhpgX4+5zXQpQtz1noSRmNw/zsWDelsEOmjvA49D/16VK4qYBpaS5UHn LwI21OniF8Svsaq9bhxtjRxJ366qwAQQ== X-Received: from pga2.prod.google.com ([2002:a05:6a02:4f82:b0:c63:5610:9a42]) (user=praan job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a21:6485:b0:35e:5a46:2d68 with SMTP id adf61e73a8af0-38e9f0e9df3mr3879012637.9.1769440330563; Mon, 26 Jan 2026 07:12:10 -0800 (PST) Date: Mon, 26 Jan 2026 15:11:51 +0000 In-Reply-To: <20260126151157.3418145-1-praan@google.com> Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260126151157.3418145-1-praan@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260126151157.3418145-5-praan@google.com> Subject: [PATCH v5 04/10] 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 , Sairaj Kodilkar , Pranjal Shrivastava Content-Type: text/plain; charset="UTF-8" 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. 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 38d637fde86e..6a951386baad 100644 --- a/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c +++ b/drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c @@ -507,6 +507,8 @@ 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) { -- 2.52.0.457.g6b5491de43-goog