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Tue, 29 Dec 2020 03:02:13 +0000 From: peng.fan@nxp.com To: ohad@wizery.com, bjorn.andersson@linaro.org, mathieu.poirier@linaro.org, o.rempel@pengutronix.de 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 , Richard Zhu Subject: [PATCH V5 5/8] remoteproc: imx_rproc: add i.MX specific parse fw hook Date: Tue, 29 Dec 2020 11:30:16 +0800 Message-Id: <20201229033019.25899-6-peng.fan@nxp.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201229033019.25899-1-peng.fan@nxp.com> References: <20201229033019.25899-1-peng.fan@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [119.31.174.71] X-ClientProxiedBy: SG2PR06CA0178.apcprd06.prod.outlook.com (2603:1096:1:1e::32) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by SG2PR06CA0178.apcprd06.prod.outlook.com (2603:1096:1:1e::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.27 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?QjHoHt2ldb6wH9Jfhp5UWahP4O2muJoJwrshtbqQyt4UbB0PJD1efKvzIRfr?= =?us-ascii?Q?GKZFpCHU+c1lMBDGZt7zzw5kRdypZqy4/ieRv9He/QM5Pc/9Dy2OXJMig685?= =?us-ascii?Q?+X57XqokC75feYfF8a2NRzdRi54Mxy6qjDgNID5AqiITUWc8cQxH1aE8pFsj?= =?us-ascii?Q?kI7wgpE7Mgs6BjtcpFLXUe6+KwN09xb1vb0auLsw+dr+W8jLMHLlHrfzoIZK?= =?us-ascii?Q?kcbUl5i63zN4VAcs3X0+urPRp14573OKdhx5/o8scTqZfAnjoJKKmPTAqlyl?= =?us-ascii?Q?Zjxe0dQg+77wMw6DG6Dk3mF6ezrVRwokl92sdpV+ujxg/tM2syBgjBWolbFN?= =?us-ascii?Q?NO+msJQ05m9HXVXAfp7BRKwK55xJkbX2/h8jK5JQKYuD4T92PNIg1ID0WKuE?= =?us-ascii?Q?7bYyIEkiKrzCakhFsaC97YJ5HlV+pMt6C2bsBisOfKbamgQ7yjbmoKlDhhb5?= =?us-ascii?Q?FOzf5ci9PUir+RVLOeyW0I4G3Fk9GSxtK8h2wQlcj58U+hRZ9RMNqMRd2dgx?= =?us-ascii?Q?kv/qoLcatl3rwTSU3YDTpKEPLLLGZR6sVWdz1DVMcgzUkq4Z1/4MSYJUEGBA?= =?us-ascii?Q?7ViasjZfVpx9+i5gsykwLPJ4HycT5AZdn3rnv54mmdQbzYLhA1UYd4LpMWND?= =?us-ascii?Q?eJJU6pgsf2jB0Y5BnjLVftsRfHbCIguymbqJTWaf0P1vBBiB0BKNXfj/8TFH?= =?us-ascii?Q?gbi/P4689TIToq442Q6jx6FALCOpLlvOj57XelWT6aYKBzWqm8Ze94hoWRO7?= =?us-ascii?Q?GKzT4hLt/wQ/XZHZ5OLsT4tr0EYehZzCncilqQFCAPI/9s1HeHhQ4GeARCu3?= =?us-ascii?Q?DHUbhoB8Fjgc6QNYvssnP20JjrvjgTwBNcvGvv1zUef/RmSQuU7FwHSudtFf?= =?us-ascii?Q?lRSOIvlqEoH0kegNRmmStu0DoJQnLbWJ4WgDLUnase9u4zimVCcF8MXedrAR?= =?us-ascii?Q?NGBE/z8f668HOC9oFlcgBadG3KCG8ZGAWLb7VdxipDQkNkJFJ+0M9GiC3E9z?= =?us-ascii?Q?ZB1A?= 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: 29 Dec 2020 03:02:13.4963 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-Network-Message-Id: 6f7d9410-7ec6-485b-db1b-08d8aba62460 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: AyfzE5WkG4QyXJG9OeX9L5xwJHDNc1Y/Kvsm9Uj3SJOT4BjyzTnxLMtKpwm1HIv4BuOl+Yhk2IIhtxm7HJ716g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR04MB7178 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peng Fan The hook is used to parse memory-regions and load resource table from the address the remote processor published. Signed-off-by: Peng Fan Reviewed-by: Richard Zhu Reviewed-by: Mathieu Poirier --- 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 #include #include +#include #include #include #include @@ -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