From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Loic Pallardy Subject: [PATCH v2 10/16] remoteproc: add memory device registering in rproc_add_carveout Date: Thu, 30 Nov 2017 17:46:45 +0100 Message-ID: <1512060411-729-11-git-send-email-loic.pallardy@st.com> In-Reply-To: <1512060411-729-1-git-send-email-loic.pallardy@st.com> References: <1512060411-729-1-git-send-email-loic.pallardy@st.com> MIME-Version: 1.0 Content-Type: text/plain To: bjorn.andersson@linaro.org, ohad@wizery.com Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, arnaud.pouliquen@st.com, benjamin.gaignard@linaro.org, Loic Pallardy List-ID: Add the possibility to associate a memory device to carveout. Due to some memory mapping constraints, remoteproc related memory allocations should be done in a specific memory region. Constraint is not coming from remoteproc firmware (with defined device address), but from remoteproc platform driver itself. In that case, platform driver has to register a carveout region with memory device. Memory device will be used for carveout, vring or buffer allocation accorfing to its name. Signed-off-by: Loic Pallardy --- drivers/remoteproc/remoteproc_core.c | 14 +++++++++++++- drivers/remoteproc/st_remoteproc.c | 2 +- include/linux/remoteproc.h | 3 ++- 3 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 76d54bf..2b7effb 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -964,17 +964,29 @@ static int rproc_handle_carveout(struct rproc *rproc, * rproc_add_carveout() - register an allocated carveout region * @rproc: rproc handle * @mem: memory entry to register + * @memdev: true if carveout shoult be associated to a memory device * * This function registers specified memory entry in @rproc carveouts list. * Specified carveout should have been allocated before registering. */ -int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem) +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem, bool memdev) { + struct rproc_memdev *memd; + if (!rproc || !mem) return -EINVAL; mem->priv = (void *)CARVEOUT_EXTERNAL; + if (memdev) { + memd = rproc_memdev_add(rproc, mem); + if (IS_ERR(memd)) + return -ENOMEM; + mem->memdev = memd; + } else { + mem->memdev = NULL; + } + list_add_tail(&mem->node, &rproc->carveouts); return 0; diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c index 1549ce8..da42ec9 100644 --- a/drivers/remoteproc/st_remoteproc.c +++ b/drivers/remoteproc/st_remoteproc.c @@ -286,7 +286,7 @@ static int st_rproc_parse_dt(struct platform_device *pdev) return -EBUSY; } - rproc_add_carveout(rproc, mem); + rproc_add_carveout(rproc, mem, false); } err = clk_prepare(ddata->clk); diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 66e6863..d7e7485 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -325,6 +325,7 @@ struct rproc_mem_entry { u32 da; int (*release)(struct rproc *rproc, struct rproc_mem_entry *mem); void *priv; + struct rproc_memdev *memdev; char name[32]; struct list_head node; }; @@ -524,7 +525,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, int rproc_del(struct rproc *rproc); void rproc_free(struct rproc *rproc); -int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem); +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem, bool memdev); int rproc_boot(struct rproc *rproc); void rproc_shutdown(struct rproc *rproc); -- 1.9.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753588AbdK3QtG (ORCPT ); Thu, 30 Nov 2017 11:49:06 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:35506 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753769AbdK3QrU (ORCPT ); Thu, 30 Nov 2017 11:47:20 -0500 From: Loic Pallardy To: , CC: , , , , Loic Pallardy Subject: [PATCH v2 10/16] remoteproc: add memory device registering in rproc_add_carveout Date: Thu, 30 Nov 2017 17:46:45 +0100 Message-ID: <1512060411-729-11-git-send-email-loic.pallardy@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1512060411-729-1-git-send-email-loic.pallardy@st.com> References: <1512060411-729-1-git-send-email-loic.pallardy@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.75.127.47] X-ClientProxiedBy: SFHDAG7NODE3.st.com (10.75.127.21) To SFHDAG7NODE2.st.com (10.75.127.20) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-11-30_05:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add the possibility to associate a memory device to carveout. Due to some memory mapping constraints, remoteproc related memory allocations should be done in a specific memory region. Constraint is not coming from remoteproc firmware (with defined device address), but from remoteproc platform driver itself. In that case, platform driver has to register a carveout region with memory device. Memory device will be used for carveout, vring or buffer allocation accorfing to its name. Signed-off-by: Loic Pallardy --- drivers/remoteproc/remoteproc_core.c | 14 +++++++++++++- drivers/remoteproc/st_remoteproc.c | 2 +- include/linux/remoteproc.h | 3 ++- 3 files changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 76d54bf..2b7effb 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -964,17 +964,29 @@ static int rproc_handle_carveout(struct rproc *rproc, * rproc_add_carveout() - register an allocated carveout region * @rproc: rproc handle * @mem: memory entry to register + * @memdev: true if carveout shoult be associated to a memory device * * This function registers specified memory entry in @rproc carveouts list. * Specified carveout should have been allocated before registering. */ -int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem) +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem, bool memdev) { + struct rproc_memdev *memd; + if (!rproc || !mem) return -EINVAL; mem->priv = (void *)CARVEOUT_EXTERNAL; + if (memdev) { + memd = rproc_memdev_add(rproc, mem); + if (IS_ERR(memd)) + return -ENOMEM; + mem->memdev = memd; + } else { + mem->memdev = NULL; + } + list_add_tail(&mem->node, &rproc->carveouts); return 0; diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c index 1549ce8..da42ec9 100644 --- a/drivers/remoteproc/st_remoteproc.c +++ b/drivers/remoteproc/st_remoteproc.c @@ -286,7 +286,7 @@ static int st_rproc_parse_dt(struct platform_device *pdev) return -EBUSY; } - rproc_add_carveout(rproc, mem); + rproc_add_carveout(rproc, mem, false); } err = clk_prepare(ddata->clk); diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 66e6863..d7e7485 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -325,6 +325,7 @@ struct rproc_mem_entry { u32 da; int (*release)(struct rproc *rproc, struct rproc_mem_entry *mem); void *priv; + struct rproc_memdev *memdev; char name[32]; struct list_head node; }; @@ -524,7 +525,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, int rproc_del(struct rproc *rproc); void rproc_free(struct rproc *rproc); -int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem); +int rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem, bool memdev); int rproc_boot(struct rproc *rproc); void rproc_shutdown(struct rproc *rproc); -- 1.9.1