From: Suman Anna <s-anna@ti.com>
To: Loic Pallardy <loic.pallardy@st.com>,
<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>
Subject: Re: [PATCH v4 05/17] remoteproc: add helper function to allocate and init rproc_mem_entry struct
Date: Tue, 23 Oct 2018 14:24:08 -0500 [thread overview]
Message-ID: <12b7cb33-279d-1e6e-28b5-cddf3f43d0e9@ti.com> (raw)
In-Reply-To: <1532697292-14272-6-git-send-email-loic.pallardy@st.com>
On 7/27/18 8:14 AM, Loic Pallardy wrote:
> This patch introduces rproc_mem_entry_init helper function to
> simplify rproc_mem_entry structure allocation and filling by
> client.
>
> Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
> ---
> drivers/remoteproc/remoteproc_core.c | 65 +++++++++++++++++++++++++++---------
> include/linux/remoteproc.h | 6 ++++
> 2 files changed, 55 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index d7e3138..b76760e 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -639,7 +639,7 @@ static int rproc_handle_carveout(struct rproc *rproc,
> struct fw_rsc_carveout *rsc,
> int offset, int avail)
> {
> - struct rproc_mem_entry *carveout, *mapping;
> + struct rproc_mem_entry *carveout, *mapping = NULL;
> struct device *dev = &rproc->dev;
> dma_addr_t dma;
> void *va;
> @@ -659,16 +659,11 @@ static int rproc_handle_carveout(struct rproc *rproc,
> dev_dbg(dev, "carveout rsc: name: %s, da 0x%x, pa 0x%x, len 0x%x, flags 0x%x\n",
> rsc->name, rsc->da, rsc->pa, rsc->len, rsc->flags);
>
> - carveout = kzalloc(sizeof(*carveout), GFP_KERNEL);
> - if (!carveout)
> - return -ENOMEM;
> -
> va = dma_alloc_coherent(dev->parent, rsc->len, &dma, GFP_KERNEL);
> if (!va) {
> dev_err(dev->parent,
> "failed to allocate dma memory: len 0x%x\n", rsc->len);
> - ret = -ENOMEM;
> - goto free_carv;
> + return -ENOMEM;
> }
>
> dev_dbg(dev, "carveout va %pK, dma %pad, len 0x%x\n",
> @@ -747,27 +742,65 @@ static int rproc_handle_carveout(struct rproc *rproc,
> */
> rsc->pa = (u32)rproc_va_to_pa(va);
>
> - carveout->va = va;
> - carveout->len = rsc->len;
> - carveout->dma = dma;
> - carveout->da = rsc->da;
> - carveout->release = rproc_release_carveout;
> - strlcpy(carveout->name, rsc->name, sizeof(carveout->name));
> + carveout = rproc_mem_entry_init(dev, va, dma, rsc->len, rsc->da,
> + rproc_release_carveout, rsc->name);
> + if (!carveout)
> + goto free_carv;
>
> list_add_tail(&carveout->node, &rproc->carveouts);
>
> return 0;
>
> +free_carv:
> + kfree(carveout);
> free_mapping:
> kfree(mapping);
> dma_free:
> dma_free_coherent(dev->parent, rsc->len, va, dma);
> -free_carv:
> - kfree(carveout);
> return ret;
> }
>
> -/*
> +/**
> + * rproc_mem_entry_init() - allocate and initialize rproc_mem_entry struct
> + * @dev: pointer on device struct
> + * @va: virtual address
> + * @dma: dma address
> + * @len: memory carveout length
> + * @da: device address
> + * @release: memory carveout function
> + * @name: carveout name
> + *
> + * This function allocates a rproc_mem_entry struct and fill it with parameters
> + * provided by client.
> + */
> +struct rproc_mem_entry *
> +rproc_mem_entry_init(struct device *dev,
> + void *va, dma_addr_t dma, int len, u32 da,
> + int (*release)(struct rproc *, struct rproc_mem_entry *),
> + const char *name, ...)
> +{
> + struct rproc_mem_entry *mem;
> + va_list args;
> +
> + mem = kzalloc(sizeof(*mem), GFP_KERNEL);
> + if (!mem)
> + return mem;
> +
> + mem->va = va;
> + mem->dma = dma;
> + mem->da = da;
> + mem->len = len;
> + mem->release = release;
> +
> + va_start(args, name);
> + vsnprintf(mem->name, sizeof(mem->name), name, args);
> + va_end(args);
> +
> + return mem;
> +}
> +EXPORT_SYMBOL(rproc_mem_entry_init);
> +
> +/**
> * A lookup table for resource handlers. The indices are defined in
> * enum fw_resource_type.
> */
> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
> index 0e21098..4bc961f 100644
> --- a/include/linux/remoteproc.h
> +++ b/include/linux/remoteproc.h
> @@ -558,6 +558,12 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
> int rproc_del(struct rproc *rproc);
> void rproc_free(struct rproc *rproc);
>
> +struct rproc_mem_entry *
> +rproc_mem_entry_init(struct device *dev,
> + void *va, dma_addr_t dma, int len, u32 da,
> + int (*release)(struct rproc *, struct rproc_mem_entry *),
> + const char *name, ...);
> +
> int rproc_boot(struct rproc *rproc);
> void rproc_shutdown(struct rproc *rproc);
> void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type);
>
next prev parent reply other threads:[~2018-10-23 19:24 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-27 13:14 [PATCH v4 00/17] remoteproc: add fixed memory region support Loic Pallardy
2018-07-27 13:14 ` [PATCH v4 01/17] remoteproc: configure IOMMU only if device address requested Loic Pallardy
2018-10-23 17:25 ` Suman Anna
2018-10-23 19:40 ` Loic PALLARDY
2018-10-24 3:46 ` Suman Anna
2018-10-24 12:56 ` Loic PALLARDY
2018-10-26 0:46 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 02/17] remoteproc: add rproc_va_to_pa function Loic Pallardy
2018-10-23 16:50 ` Suman Anna
2018-10-23 19:51 ` Loic PALLARDY
2018-10-24 3:19 ` Suman Anna
2018-10-24 12:58 ` Loic PALLARDY
2018-10-25 22:50 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 03/17] remoteproc: add release ops in rproc_mem_entry struct Loic Pallardy
2018-10-23 16:53 ` Suman Anna
2018-10-23 20:48 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 04/17] remoteproc: add name " Loic Pallardy
2018-10-23 17:06 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 05/17] remoteproc: add helper function to allocate and init " Loic Pallardy
2018-10-23 19:24 ` Suman Anna [this message]
2018-07-27 13:14 ` [PATCH v4 06/17] remoteproc: introduce rproc_add_carveout function Loic Pallardy
2018-10-23 17:05 ` Suman Anna
2018-10-23 19:48 ` Loic PALLARDY
2018-07-27 13:14 ` [PATCH v4 07/17] remoteproc: introduce rproc_find_carveout_by_name function Loic Pallardy
2018-10-23 19:28 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 08/17] remoteproc: add alloc ops in rproc_mem_entry struct Loic Pallardy
2018-10-23 21:20 ` Suman Anna
2018-10-24 16:00 ` Loic PALLARDY
2018-10-25 22:37 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 09/17] remoteproc: add helper function to allocate rproc_mem_entry from reserved memory Loic Pallardy
2018-07-27 13:14 ` [PATCH v4 10/17] remoteproc: add helper function to check carveout device address Loic Pallardy
2018-10-23 22:14 ` Suman Anna
2018-10-24 15:24 ` Loic PALLARDY
2018-10-25 22:50 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 11/17] remoteproc: modify rproc_handle_carveout to support pre-registered region Loic Pallardy
2018-07-27 13:14 ` [PATCH v4 12/17] remoteproc: modify vring allocation to rely on centralized carveout allocator Loic Pallardy
2018-10-10 5:32 ` Bjorn Andersson
2018-10-10 18:58 ` Loic PALLARDY
2018-10-15 6:40 ` Bjorn Andersson
2018-10-23 23:24 ` Suman Anna
2018-10-24 0:14 ` Suman Anna
2018-10-24 15:14 ` Loic PALLARDY
2018-10-29 20:17 ` Suman Anna
2018-12-04 17:56 ` Wendy Liang
2018-12-04 18:04 ` Loic PALLARDY
2018-12-04 18:58 ` Wendy Liang
2018-12-04 19:57 ` Loic PALLARDY
2018-12-04 21:24 ` Wendy Liang
2018-07-27 13:14 ` [PATCH v4 13/17] remoteproc: create vdev subdevice with specific dma memory pool Loic Pallardy
2018-09-27 17:17 ` Wendy Liang
2018-09-27 19:22 ` Loic PALLARDY
2018-09-27 20:18 ` Wendy Liang
2018-10-24 1:22 ` Suman Anna
2018-10-24 1:48 ` Suman Anna
2018-10-24 12:42 ` Loic PALLARDY
2018-10-25 22:06 ` Suman Anna
2018-10-24 12:40 ` Loic PALLARDY
2018-10-25 20:16 ` Suman Anna
2018-10-10 5:58 ` Bjorn Andersson
2018-10-10 19:17 ` Loic PALLARDY
2018-10-24 1:27 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 14/17] remoteproc: keystone: declare reserved memory region for vdev device Loic Pallardy
2018-07-27 13:14 ` [PATCH v4 15/17] remoteproc: da8xx: " Loic Pallardy
2018-10-24 2:57 ` Suman Anna
2018-10-24 13:19 ` Loic PALLARDY
2018-10-25 22:11 ` Suman Anna
2018-07-27 13:14 ` [PATCH v4 16/17] remoteproc: st: add reserved memory support Loic Pallardy
2018-10-24 3:01 ` Suman Anna
2018-10-24 12:37 ` Loic PALLARDY
2018-07-27 13:14 ` [PATCH v4 17/17] rpmsg: virtio: allocate buffer from parent Loic Pallardy
2018-09-28 7:56 ` Anup Patel
2018-09-21 6:04 ` [PATCH v4 00/17] remoteproc: add fixed memory region support Anup Patel
2018-09-26 16:00 ` Loic PALLARDY
2018-09-28 7:54 ` Anup Patel
2018-10-23 16:42 ` Suman Anna
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