From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 1ED4949EC65 for ; Mon, 7 Sep 2026 11:30:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788780633; cv=none; b=AxzNASq1II429x8Mm/uw+SPTFIXlQObqPIuX2klJrBpIpq0WZp212DAiWOgai8fNeKtK9N718mLOiomOJZ5ur+JH4YNiHawwoi9W3S4hFzkRyqFWRjSZKdFIiYGUeD49Ue0dTGYc5OqoXfQeB8rlrBqnPa2/UVRLLPGv/WYYXyY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788780633; c=relaxed/simple; bh=58d5xcI7TXiI3SzLBrxGu+uvs7tYAajrASWRWeywyIg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eoHpHWtEBIjomqlcqdzgUSHt5Uy+WC6XF2TuXpPT0C53QGW5uukvfp/9Uv8LM4GVFdFfQ/UNRp6eTaIiiwBQmyUEg00gQ9OhWHkl/p7afoSz7JBDEVE3C7E77eHuwsSuzfSMhWsJ/PDucNpXvjrQHtAIu11WMrbilXWrYfNx8vE= 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=DxPIek0P; arc=none smtp.client-ip=192.198.163.10 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="DxPIek0P" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788780632; x=1820316632; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=58d5xcI7TXiI3SzLBrxGu+uvs7tYAajrASWRWeywyIg=; b=DxPIek0PlyBLBJ+0gb9e3L9uBeHoA0FcRxwZfcf1mpviXU7O4s/JY/Am T55oDJAJ82Vxw/rfTJ5bKPJDMKvAX7grXkttiu6lMSXEBdqW642EiwfPS KHzhmUFJqY/loa2Bk4eOaq6FlErwcDmfgv6bjuEN3KwFa1PqkRY4D9IBW 4MYVxIYoEdNpldU5bTAIH1pWdyJ7dIbJSZH4pgl93IFwzoPza9mMqaaHJ LOgGJljS4+kXRoWSS7Djc+Q24y82j70trR+LUMMY3vRCIj1XL4YmMK6gH cQxAhFriHcdC3+YJ4fJNAvF65hvW0NPkKQSBJiEk1b/OJG4wBLHRU/CUA Q==; X-CSE-ConnectionGUID: YBKhkmWmTkCASWhOjd/s+w== X-CSE-MsgGUID: nuLVHCiERNWbuWW0WPrOyQ== X-IronPort-AV: E=McAfee;i="6800,10657,11898"; a="100538645" X-IronPort-AV: E=Sophos;i="6.25,267,1779174000"; d="scan'208";a="100538645" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2026 04:30:17 -0700 X-CSE-ConnectionGUID: 0NP3PIaITzya0A4iykYA3g== X-CSE-MsgGUID: Zm5z1nTLSOCze5+VIGmujw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,267,1779174000"; d="scan'208";a="300569277" Received: from abityuts-desk1.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.245.230]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Sep 2026 04:30:16 -0700 Received: from punajuuri.localdomain (unknown [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 1263A1229F3; Mon, 07 Sep 2026 14:30:06 +0300 (EEST) Received: from sailus by punajuuri.localdomain with local (Exim 4.98.2) (envelope-from ) id 1x3XY5-0000000ARpi-2Knc; Mon, 07 Sep 2026 14:30:05 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: Antti Laakso , sarang.sapre@intel.com, daxing.li@intel.com, ong.hock.yu@intel.com Subject: [PATCH v4 37/45] media: ipu6: Add support for fixed iova region Date: Mon, 7 Sep 2026 14:29:56 +0300 Message-ID: <20260907113004.2489993-38-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260907113004.2489993-1-sakari.ailus@linux.intel.com> References: <20260907113004.2489993-1-sakari.ailus@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 From: Antti Laakso The ipu7 need specific region for firmware in non-secure mode, add support for it. Signed-off-by: Antti Laakso Signed-off-by: Sakari Ailus --- 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 { -- 2.47.3