From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 696AE3914E8 for ; Fri, 21 Aug 2026 11:45:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787312704; cv=none; b=dRMELOixL2KiV7O6ioJBzbzJa5Yi5CusnAdyTNcbQtWfAdVsrUDCiHCYTZr4BPIm+/IFbx/w+Rg0LPBPEdtHvPX6zn1TlCzisEeDChrwYRbd/x/yHcGg1AUB7zOEX+zAufzuGCiftwauoaBs4FpWI5S7N2mEb2meqswJ0BLlfbI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787312704; c=relaxed/simple; bh=hAZrmsuXg2rDm+SGtX3NQVcFt2nhJfqXLIUqn1TxM3Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fcFO0RzDOcvE3O7df6TuFq4uwdGLm7xK6pI8MIHVqwb0asMvCmHseeGqHjIuFTWIz7q7ET/9N41bzUNoncYkSDnBp1UVN+YlYZ/XWud3zG5xaCHqwTxqD+eVeCz0nVU6PZnYC3Mclq+VdbWGGXZsoWm8owT6/9XSDf0Kf7hgrH4= 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=EWz86n6S; arc=none smtp.client-ip=192.198.163.15 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="EWz86n6S" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787312703; x=1818848703; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=hAZrmsuXg2rDm+SGtX3NQVcFt2nhJfqXLIUqn1TxM3Y=; b=EWz86n6S+bQuwDGmugAaFMd6Jhn9tANPojyW3I168GK0i/FTi1Rc2CiK r9LjyI2Vz64tvxvWK3w+Jo0JfWrOtGtW/i8dWun008UIGosUj0nhvWSsp RxmNGXCzp5aNZ7MrTw4ACjcfiZsi/hIN9xvffsxLKTrvF1kIiSpfWmhqw aPZRnJ3GIvkQ5mnJe9ogideXWhMA8dP6vJOyLW52tvg16RnjBQ2M4MQaO RbL2D1lckFhYVzxqniaAdDkC9SaSLU+x+ZlDzmFUDR9pPSOkcNclln/NP IXRM0KT+QwXlmJUe49rHTNcZBKIp2MzFSPuURgg1Qfcdv6iOVtc6l+1Vt Q==; X-CSE-ConnectionGUID: FQnfiHCLSkGAIXRBBlNKkg== X-CSE-MsgGUID: yTM0KMXbQDCk19pOsGW0UA== X-IronPort-AV: E=McAfee;i="6800,10657,11881"; a="87989129" X-IronPort-AV: E=Sophos;i="6.25,235,1779174000"; d="scan'208";a="87989129" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Aug 2026 04:45:03 -0700 X-CSE-ConnectionGUID: f4qPmCxPQ4OzwXU0IzXB8Q== X-CSE-MsgGUID: rjhZK097R46RPG2iilP0AA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,235,1779174000"; d="scan'208";a="291172419" Received: from mwiniars-mobl.ger.corp.intel.com (HELO alaakso-desk.kioski) ([10.245.246.151]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Aug 2026 04:45:01 -0700 From: Antti Laakso To: linux-media@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com Cc: daxing.li@intel.com, ong.hock.yu@intel.com, antti.laakso@linux.intel.com Subject: [PATCH v2 37/44] media: ipu6: Add support for fixed iova region Date: Fri, 21 Aug 2026 14:42:55 +0300 Message-ID: <20260821114302.365532-38-antti.laakso@linux.intel.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260821114302.365532-1-antti.laakso@linux.intel.com> References: <20260821114302.365532-1-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