Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   peng.fan@nxp.com
To:     ohad@wizery.com, bjorn.andersson@linaro.org,
        mathieu.poirier@linaro.org, o.rempel@pengutronix.de,
        robh+dt@kernel.org
Cc:     shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de,
        festevam@gmail.com, linux-imx@nxp.com,
        linux-remoteproc@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        paul@crapouillou.net, matthias.bgg@gmail.com, agross@kernel.org,
        patrice.chotard@st.com, Peng Fan <peng.fan@nxp.com>
Subject: [PATCH V6 07/10] remoteproc: imx_rproc: add i.MX specific parse fw hook
Date:   Tue, 12 Jan 2021 17:39:16 +0800
Message-Id: <1610444359-1857-8-git-send-email-peng.fan@nxp.com>
In-Reply-To: <1610444359-1857-1-git-send-email-peng.fan@nxp.com>
References: <1610444359-1857-1-git-send-email-peng.fan@nxp.com>
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
Received: from localhost.localdomain (119.31.174.66) by SG2PR06CA0212.apcprd06.prod.outlook.com (2603:1096:4:68::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3742.6 via Frontend Transport; Tue, 12 Jan 2021 09:49:52 +0000
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-HT: Tenant
X-MS-Office365-Filtering-Correlation-Id: dcc5a1ae-b278-4bc5-1e21-08d8b6df6b93
X-MS-TrafficTypeDiagnostic: DB3PR0402MB3658:
X-MS-Exchange-Transport-Forked: True
X-Microsoft-Antispam-PRVS: <DB3PR0402MB365839F04E192F9391CACBE888AA0@DB3PR0402MB3658.eurprd04.prod.outlook.com>
X-MS-Oob-TLC-OOBClassifiers: OLM:3276;
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: I9Xpp+fYqOEKeq4+PAjTJanXmmavG12j7Xvjc7ixvEu537cPmnS5aNNmUVDWSgLvs5a6FSdVlkxJY6/IsGczbjp5qh0FMD4srCNPJp93fZaxeYL8Zg2zlgBJnrCV9bBD6KV9WTLvfKoqhyHO6iknZs2F9NbIZZgSqPA8NyuOEWjvTKf6rfqKF5PhcHpfL8+yvVyAMAvYrqehSK6YRtWb/bvGVv/na5DjHTz/MOca52xR+0hT3Oh3BLa7rBXo2Pz/zwZFoCOYbAMteIyDDpD6R8r1AQGbEJqBWhRP9ZSZI3FIcnnhJ/iPHVjclU727bkiDOXFLS8QTTc94wZgtgipVXKI2f0vTgu1pkvn9+KQl/KeAerrpIkmzfQOeHZnui8s5TfWO9Q5Creglznjc0nRec26MPJsOWhhQeH8FBM6osGCQFxyaNocYwqaIdC1yR1sd32Aha8hg2nmtrtVRwMzlQ==
X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB6PR0402MB2760.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(956004)(26005)(2616005)(6486002)(36756003)(66946007)(66556008)(6512007)(52116002)(16526019)(66476007)(86362001)(7416002)(9686003)(6506007)(186003)(8936002)(498600001)(83380400001)(5660300002)(2906002)(8676002)(69590400011)(6666004)(4326008);DIR:OUT;SFP:1101;
X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?C+gu+02x4hoBVEMox+nhgWk4GmFyy7unwCejdZ/PxK0auGWB+M+L1oDN4d94?=
 =?us-ascii?Q?diDRuDg30mmJmVKyduNpDaCN8rn5245TGw0Dc7ip0GNlgTB18k5M7ewb90tM?=
 =?us-ascii?Q?xc8/FndfNlroVRzJi021V72SayUi7Po4KC8OZrWVlAaXC6R/AFIedoAL89sb?=
 =?us-ascii?Q?wVPl1A1bAKEN9Ja5groajHeuje1rIVIC7aU1rN73FE6mErEpdRozZzrimb6H?=
 =?us-ascii?Q?pw/Llqh8Q886lJwjriz5208x44nC+MpDkQdlM20Nzyg/0IC/rayYQ5/0kZm+?=
 =?us-ascii?Q?nI1nufRX3zaUSKlFD5MxspNeo7sInAe3tFje1YTProygiqqsFu67cgxmHDaa?=
 =?us-ascii?Q?wNShg/DLW75H9BQVqvk+xD0Gm0tQP5wkqLjFfGHuc1Sxmd9rvy9FbNw121pv?=
 =?us-ascii?Q?XI4MuK6+DYyWyA8ldL+nKgFKC7drBHmHrns2P0GvdS0UiAQYtlvm6P716WoG?=
 =?us-ascii?Q?pUXF11rzBupZN6erdKzJNZ1K8Imm7xtKXNMnQX8wU/PRh/8ILTJwcNvXD4pP?=
 =?us-ascii?Q?IieH7PeOzchtsNClIV9PUo6Mru+t1byoCC5yslhNPET3bmafjuqeBZSpUZi3?=
 =?us-ascii?Q?cLUQxZhzM4k+vL7u86fvRGkpB20dGC0O7c2CruzDPefmruMSp5zJ3UYUrIDi?=
 =?us-ascii?Q?oDsdL1twPZ+TTALsvCiF/FZwB6N7I4WXb3ND1drlofySs/wNU6TgzdTpIz93?=
 =?us-ascii?Q?S8RgygYNbPNlJstT/TmxphRT/LAcMtqmliiw9NMnD6qs6MKkjzYLT+pFOFhI?=
 =?us-ascii?Q?+hNV2XIpFghwj5TeLJkjH44HYC6wOntC9zXsMeKiKkk46aCPzorCFGxTR/Ve?=
 =?us-ascii?Q?nHh9EGYUx4/FTF5fsgWCzBrgEbTbGqkhQiQLIVzIZhN74cXhhvtmQQ7gEjm+?=
 =?us-ascii?Q?8fWC/fbIkrudvy9AF5xzqKMmcsr0pxgTOdE3gVIPZiXITfqGjKBGCezm7Reb?=
 =?us-ascii?Q?uVwmc5YVAli2gWeoKQloJ9RNMWsHNloN5MafyCiIA5ssyuJgoHPLYN5Kh0ch?=
 =?us-ascii?Q?35Gx?=
X-OriginatorOrg: nxp.com
X-MS-Exchange-CrossTenant-AuthSource: DB6PR0402MB2760.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2021 09:49:57.0911
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635
X-MS-Exchange-CrossTenant-Network-Message-Id: dcc5a1ae-b278-4bc5-1e21-08d8b6df6b93
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: iYB72ZzE8ts0Wew5wmtJVQgAHJa5PI2ad61g0b04w6VispUjzJAybiOCxhpGOBmyODFlmTiOkRvaZlAhqqO7UQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB3PR0402MB3658
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

From: Peng Fan <peng.fan@nxp.com>

The hook is used to parse memory-regions and load resource table
from the address the remote processor published.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/remoteproc/imx_rproc.c | 93 ++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 47fc1d06be6a..3c0075dc1787 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -10,6 +10,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
+#include <linux/of_reserved_mem.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
@@ -241,10 +242,102 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *i
 	return va;
 }
 
+static int imx_rproc_mem_alloc(struct rproc *rproc,
+			       struct rproc_mem_entry *mem)
+{
+	struct device *dev = rproc->dev.parent;
+	void *va;
+
+	dev_dbg(dev, "map memory: %p+%zx\n", &mem->dma, mem->len);
+	va = ioremap_wc(mem->dma, mem->len);
+	if (IS_ERR_OR_NULL(va)) {
+		dev_err(dev, "Unable to map memory region: %p+%zx\n",
+			&mem->dma, mem->len);
+		return -ENOMEM;
+	}
+
+	/* Update memory entry va */
+	mem->va = va;
+
+	return 0;
+}
+
+static int imx_rproc_mem_release(struct rproc *rproc,
+				 struct rproc_mem_entry *mem)
+{
+	dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma);
+	iounmap(mem->va);
+
+	return 0;
+}
+
+static int imx_rproc_parse_memory_regions(struct rproc *rproc)
+{
+	struct imx_rproc *priv = rproc->priv;
+	struct device_node *np = priv->dev->of_node;
+	struct of_phandle_iterator it;
+	struct rproc_mem_entry *mem;
+	struct reserved_mem *rmem;
+	u32 da;
+
+	/* Register associated reserved memory regions */
+	of_phandle_iterator_init(&it, np, "memory-region", NULL, 0);
+	while (of_phandle_iterator_next(&it) == 0) {
+		/*
+		 * Ignore the first memory region which will be used vdev buffer.
+		 * No need to do extra handlings, rproc_add_virtio_dev will handle it.
+		 */
+		if (!strcmp(it.node->name, "vdevbuffer"))
+			continue;
+
+		rmem = of_reserved_mem_lookup(it.node);
+		if (!rmem) {
+			dev_err(priv->dev, "unable to acquire memory-region\n");
+			return -EINVAL;
+		}
+
+		/* No need to translate pa to da, i.MX use same map */
+		da = rmem->base;
+
+		/* Register memory region */
+		mem = rproc_mem_entry_init(priv->dev, NULL, (dma_addr_t)rmem->base, rmem->size, da,
+					   imx_rproc_mem_alloc, imx_rproc_mem_release,
+					   it.node->name);
+
+		if (mem)
+			rproc_coredump_add_segment(rproc, da, rmem->size);
+		else
+			return -ENOMEM;
+
+		rproc_add_carveout(rproc, mem);
+	}
+
+	return  0;
+}
+
+static int imx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
+{
+	int ret = imx_rproc_parse_memory_regions(rproc);
+
+	if (ret)
+		return ret;
+
+	ret = rproc_elf_load_rsc_table(rproc, fw);
+	if (ret)
+		dev_info(&rproc->dev, "No resource table in elf\n");
+
+	return 0;
+}
+
 static const struct rproc_ops imx_rproc_ops = {
 	.start		= imx_rproc_start,
 	.stop		= imx_rproc_stop,
 	.da_to_va       = imx_rproc_da_to_va,
+	.load		= rproc_elf_load_segments,
+	.parse_fw	= imx_rproc_parse_fw,
+	.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
+	.sanity_check	= rproc_elf_sanity_check,
+	.get_boot_addr	= rproc_elf_get_boot_addr,
 };
 
 static int imx_rproc_addr_init(struct imx_rproc *priv,
-- 
2.28.0