From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8F0C257827 for ; Thu, 27 Aug 2026 12:35:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787834107; cv=none; b=LoOtdAEdhmnQUm2EYFC6ADTgTch5T/zJK238QUC2FlPVpJTfe50Lb7+nI0BvqLI/8vFZqvCjOrLoFETIDGO3mIqYUVjoG9DLUtbAmoC9H5VMrLUB4AIOGfDGWaUxGDEvryr5Cbj0fkSEPtPRXQJS678nNqau6666SzXIvStpbZE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787834107; c=relaxed/simple; bh=hAZrmsuXg2rDm+SGtX3NQVcFt2nhJfqXLIUqn1TxM3Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=N84BLO09ZD+75zWNLwy/b5BMcZFgXslxksbAfdK9FNtvvEyIzSRh9CVlav889sS9HNPFnPqEBVf5Us8zosb0COLVwLfQ6agwHrr96XElAFFYWhWsZxnsg91jEIFL8K3KTWRq12pWzUhJCBYnsgZ0X1tZufeNUAve63nN/61DgzM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ge74sn/1; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ge74sn/1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787834104; x=1819370104; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hAZrmsuXg2rDm+SGtX3NQVcFt2nhJfqXLIUqn1TxM3Y=; b=ge74sn/1f6hTk0wCV2OiUaHpaVjXTykpoqP93iuQmCZCCW4MSZ9bePAU +0tvR58DWbjZrW21zuCcpZbPQ7PEqbgqc2m2H7F0zEcOtcsxyCbKQfA5u YhuYxVQPe4jGk+uoTM/i1O8065Fv1iM6fe55GPoHxv+5+Fcln7QzIE4YD 7lLDyrt2M+BEb64C/nKPZ25LNPZxEU14wLiu+d2aTS8ItniZ8K1wn4ZiA TvfDWUKllUU7bFGYmEDFCxPUZDZ/g3f8viHnMl7l1ZR7WgQzpr3jd6gws ZeaTp25Kvl+kCDwW7Aq9aUYAtpF771GxJqgsq96T15tyDsjvWWPSHG8qr g==; X-CSE-ConnectionGUID: U7LgCZPwQHKlcRHikoqLeA== X-CSE-MsgGUID: 7zRaBIE6Rm+HJDNxYU3z8w== X-IronPort-AV: E=McAfee;i="6800,10657,11887"; a="88188667" X-IronPort-AV: E=Sophos;i="6.25,246,1779174000"; d="scan'208";a="88188667" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2026 05:35:03 -0700 X-CSE-ConnectionGUID: azMXkS+kSXerJs8eCJ3wLA== X-CSE-MsgGUID: EVV3wI0SR2GkFLU3ep0CFg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,246,1779174000"; d="scan'208";a="271384588" Received: from sghuge-mobl2.amr.corp.intel.com (HELO alaakso-desk.kioski) ([10.125.109.104]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2026 05:35:02 -0700 From: Antti Laakso To: linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com, sarang.sapre@intel.com Cc: daxing.li@intel.com, ong.hock.yu@intel.com, antti.laakso@linux.intel.com Subject: [PATCH v3 37/44] media: ipu6: Add support for fixed iova region Date: Thu, 27 Aug 2026 15:33:29 +0300 Message-ID: <20260827123336.2219048-38-antti.laakso@linux.intel.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260827123336.2219048-1-antti.laakso@linux.intel.com> References: <20260827123336.2219048-1-antti.laakso@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The ipu7 need specific region for firmware in non-secure mode, add support for it. Signed-off-by: Antti Laakso --- drivers/media/pci/intel/ipu6/ipu6-dma.c | 20 +++++++++++++++++--- drivers/media/pci/intel/ipu6/ipu6-dma.h | 2 ++ 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.c b/drivers/media/pci/intel/ipu6/ipu6-dma.c index 6e8295d9c3a3..90f530a93779 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-dma.c +++ b/drivers/media/pci/intel/ipu6/ipu6-dma.c @@ -371,6 +371,17 @@ void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, } EXPORT_SYMBOL_NS_GPL(ipu6_dma_unmap_sg, "INTEL_IPU6"); +static struct iova *ipu7_get_fw_code_region(struct ipu6_bus_device *sys) +{ + struct ipu6_mmu *mmu = sys->mmu; + unsigned long lo, hi; + + lo = iova_pfn(&mmu->dmap->iovad, IPU7_FW_CODE_REGION_START); + hi = iova_pfn(&mmu->dmap->iovad, IPU7_FW_CODE_REGION_END) - 1U; + + return reserve_iova(&mmu->dmap->iovad, lo, hi); +} + int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, int nents, enum dma_data_direction dir, unsigned long attrs) @@ -397,10 +408,13 @@ int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, dev_dbg(dev, "dmamap trying to map %d ents %zu pages\n", nents, npages); - iova = alloc_iova(&mmu->dmap->iovad, npages, - PHYS_PFN(mmu->dmap->mmu_info->aperture_end), 0); + if (attrs & DMA_ATTR_RESERVE_REGION) + iova = ipu7_get_fw_code_region(sys); + else + iova = alloc_iova(&mmu->dmap->iovad, npages, + PHYS_PFN(mmu->dmap->mmu_info->aperture_end), 0); if (!iova) - return 0; + return -ENOMEM; dev_dbg(dev, "dmamap: iova low pfn %lu, high pfn %lu\n", iova->pfn_lo, iova->pfn_hi); diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.h b/drivers/media/pci/intel/ipu6/ipu6-dma.h index ae9b9a5df57f..e5e0e7860423 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-dma.h +++ b/drivers/media/pci/intel/ipu6/ipu6-dma.h @@ -10,6 +10,8 @@ #include "ipu6-bus.h" +#define DMA_ATTR_RESERVE_REGION BIT(31) + struct ipu6_mmu_info; struct ipu6_dma_mapping { -- 2.55.0