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Mon, 18 Jan 2021 12:31:07 +0000 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, devicetree@vger.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 Subject: [PATCH V7 07/10] remoteproc: imx_rproc: add i.MX specific parse fw hook Date: Mon, 18 Jan 2021 20:19:56 +0800 Message-Id: <1610972399-28286-8-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1610972399-28286-1-git-send-email-peng.fan@nxp.com> References: <1610972399-28286-1-git-send-email-peng.fan@nxp.com> Content-Type: text/plain X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: SG2PR03CA0113.apcprd03.prod.outlook.com (2603:1096:4:91::17) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (119.31.174.66) by SG2PR03CA0113.apcprd03.prod.outlook.com (2603:1096:4:91::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3784.6 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?bIBZ5mL6uJO8FG4gYdIDlNw4pNg8X5+PUw6RbqVfNxx7S00/XN3osIBD1YZG?= =?us-ascii?Q?nOc+L4TVNWPwymAiIQlr9PxcLUkeDv9vuQ4J2DLXmi+7+Dn/wIa76dkzqtW3?= =?us-ascii?Q?JQRGsgy9Ys2u8+hEVQLUTjZF3RT+/lI0umXfTQgXevSvlRsUwDzlG2CDIADN?= =?us-ascii?Q?wxYMGiVUBgyCIftvKdEUox9eTP6lj07IuQe54ck1QzOYYP2jITtG3CVWuTo/?= =?us-ascii?Q?Bp5ZvYXlOwo44u5DgMKd+yuMPFrmDGf8tTiMwtMBpt/3mb7qGPdpxKbCfeyh?= =?us-ascii?Q?YpWTyiOFGAfe3leINa/IOOKsG9cBjKqKmZCSlbiZqWPHGEDrhg/3toDtUNLl?= =?us-ascii?Q?e3l/iaU63Txzbk8ZPt7FaCcGgUKytGg1OszJZsa/X7HvAxGH0Vko6BdOUWpe?= =?us-ascii?Q?Nh8QqP8LoUFPrRjmiodFjm0yDV2jKLpne1Wf96EkAK1JU7z0zQDkbcdjwCcb?= =?us-ascii?Q?lA26JOR12izzfk7fkpwwFWNi7ycX5pNZ+w8IqdrhE7eBZQWnw7y9sAnK6YPC?= =?us-ascii?Q?9Oyuo5fth6pn4kpxtQ+8iBN1h3hw/64yVQXvV8I0ghfZNmxLSQJAHDkHfurq?= =?us-ascii?Q?QPKoc7sAUGxqQ3r+ZFqsB482f0aY1q2SPNCIZXTGChP+9XLVOtT3JCjVMT3S?= =?us-ascii?Q?glQXI6IWPKoj086LDGp/7IZfTj/7QCs+BudberHR3zp4CHEhS59rf7Oru4sR?= =?us-ascii?Q?aqO1LEee2XUxzOJ+jBrxJWE3w6PkN71XTRD3eCD/ggI6evHI+LNqBh6wJuUg?= =?us-ascii?Q?c+O2TVFDwCORi2R/1dpY7VCZRl87mM82M+e9AckYXseRat6uy9AbmJO3VlSg?= =?us-ascii?Q?sHQmrPyRgzS2+VzH6LTL/oYX5ibrXjlt+kKP7swLSo2FOvA2g/33Sr6c2IB+?= =?us-ascii?Q?YNVSAcrC8aidauVPwRkvFZLsXUJ5M6yPPaGh9c8tapumRzlnNbQbHNlMPkSt?= =?us-ascii?Q?LwOV+bqznBfEBFGuUgEqagqrI5Czj8Eqx7QaNFlXhVs+jao2R6xy7iqtlw7O?= =?us-ascii?Q?Vwk5?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0175b122-7e25-49be-4161-08d8bbacedd4 X-MS-Exchange-CrossTenant-AuthSource: DB6PR0402MB2760.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jan 2021 12:31:07.3703 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: JXk0exAmADW265TayPYSY5/gAc3u7EqtwqXly6xpOEB/9rJH8bLnx5rYI7HuM80GzIuapdd1TdSd/aw4wJPXwA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR04MB5243 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. Reviewed-by: Richard Zhu Reviewed-by: Mathieu Poirier Signed-off-by: Peng Fan --- 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..5ae1f5209548 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, "vdev0buffer")) + 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