From: Lee Jones <lee.jones@linaro.org>
To: Loic Pallardy <loic.pallardy@st.com>
Cc: bjorn.andersson@linaro.org, ohad@wizery.com,
linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel@stlinux.com
Subject: Re: [PATCH v2 08/19] remoteproc: core: Associate action to resource request
Date: Thu, 1 Sep 2016 08:23:04 +0100 [thread overview]
Message-ID: <20160901072304.GC4921@dell> (raw)
In-Reply-To: <1472676622-32533-9-git-send-email-loic.pallardy@st.com>
On Wed, 31 Aug 2016, Loic Pallardy wrote:
> With new rproc_request_resource API, rproc driver has now the
> capability to provide resources to remoteproc in order to modify
> firmware resource table.
> But in some cases, other operations are needed like compatibility
> check between resources defined at firmware level and those handled
> by rproc driver, or remoteproc local resource management when firmware
> has no resource table.
>
> This patch associates action to each resource request to:
> - verify a resource
> - update/amend a resource in firmware resource table
> - handle locally a resource
>
> Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
> ---
> drivers/remoteproc/remoteproc_core.c | 13 ++++++++++++-
> include/linux/remoteproc.h | 26 +++++++++++++++++++++++++-
> 2 files changed, 37 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 3282a4e..cd64fae 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -876,16 +876,20 @@ static void rproc_dump_resource_table(struct rproc *rproc,
> }
> }
>
> -int rproc_request_resource(struct rproc *rproc, u32 type, void *resource)
> +int rproc_request_resource(struct rproc *rproc, u32 type, u32 action, void *resource)
> {
> struct device *dev = &rproc->dev;
> struct rproc_request_resource *request;
> + struct fw_rsc_vdev *v;
> int size;
>
> request = devm_kzalloc(dev, sizeof(*request), GFP_KERNEL);
> if (!request)
> return -ENOMEM;
>
> + if (action > RSC_ACT_LAST)
">=". *_LAST is not a valid request.
> + return -EINVAL;
The switch() statement below should ha
> switch (type) {
> case RSC_CARVEOUT:
> size = sizeof(struct fw_rsc_carveout);
> @@ -896,6 +900,12 @@ int rproc_request_resource(struct rproc *rproc, u32 type, void *resource)
> case RSC_TRACE:
> size = sizeof(struct fw_rsc_trace);
> break;
> + case RSC_VDEV:
> + v = resource;
> + size = sizeof(struct fw_rsc_vdev);
> + size += v->num_of_vrings * sizeof(struct fw_rsc_vdev_vring);
> + size += v->config_len;
> + break;
> default:
> dev_err(dev, "Unsupported resource type: %d\n", type);
> return -EINVAL;
> @@ -908,6 +918,7 @@ int rproc_request_resource(struct rproc *rproc, u32 type, void *resource)
> memcpy(request->resource, resource, size);
> request->type = type;
> request->size = size;
> + request->action = action;
>
> list_add_tail(&request->node, &rproc->override_resources);
>
> diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
> index 4e2f822..2b0f1d7 100644
> --- a/include/linux/remoteproc.h
> +++ b/include/linux/remoteproc.h
> @@ -335,11 +335,34 @@ struct rproc_mem_entry {
> };
>
> /**
> + * enum rproc_request_action - types of actions associated to a resource
> + * request
> + *
> + * @RSC_ACT_CHECK: request to verify this resource with firmware one
> + * @RSC_ACT_UPDATE: request to update firmware resource table with associated
> + * resource if possible
> + * @RSC_ACT_FORCE_UPDATE: force firmware resource table update with associated
> + * resource
> + * @RSC_ACT_LOCAL: request to handle this resource localy but not to update
> + * firmware resource table
> + * @RSC_ACT_LAST: just keep this one at the end
> + */
> +enum rproc_request_action {
> + RSC_ACT_VERIFY = 0,
> + RSC_ACT_UPDATE = 1,
> + RSC_ACT_FORCE_UPDATE = 2,
> + RSC_ACT_LOCAL = 3,
For reviewing purposes I suggest adding these entries as you start to
support them. Then we have the code and the suggested comment in one
patch for easy comparison.
> + RSC_ACT_LAST = 4,
> +};
> +
> +/**
> * struct rproc_requested_resources - add a resource to the resource table
> *
> * @resource: pointer to a 'struct fw_rsc_*' resource
> * @type: 'fw_resource_type' resource type
> * @size: size of resource
> + * @action: action associated the resource
> * @node: list node
> *
> * Resources can be added by platform-specific rproc drivers calling
> @@ -350,6 +373,7 @@ struct rproc_request_resource {
> void *resource;
> u32 type;
> u32 size;
> + u32 action;
> struct list_head node;
> };
>
> @@ -517,7 +541,7 @@ struct rproc_vdev {
> u32 rsc_offset;
> };
>
> -int rproc_request_resource(struct rproc *rproc, u32 type, void *res);
> +int rproc_request_resource(struct rproc *rproc, u32 type, u32 action, void *res);
> struct rproc *rproc_get_by_phandle(phandle phandle);
> struct rproc *rproc_alloc(struct device *dev, const char *name,
> const struct rproc_ops *ops,
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2016-09-01 7:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-31 20:50 [PATCH v2 00/19] remoteproc: Allow platform-specific drivers to request resources Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 01/19] remoteproc: core: New API to add new resources to the resource table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 02/19] remoteproc: core: Add function to dump " Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 03/19] remoteproc: core: Add function to amend an existing resource table entry Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 04/19] remoteproc: core: Add function to append a new " Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 05/19] remoteproc: core: Add function to over-ride current resource table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 06/19] remoteproc: core: Add explicit message error if cached table failed Loic Pallardy
2016-09-01 7:09 ` Lee Jones
2016-09-08 9:40 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 07/19] remoteproc: Add new resource type for resource table spare bytes Loic Pallardy
2016-09-15 17:54 ` Bjorn Andersson
2016-09-16 9:02 ` loic pallardy
2016-09-16 17:12 ` Bjorn Andersson
2016-09-19 7:50 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 08/19] remoteproc: core: Associate action to resource request Loic Pallardy
2016-09-01 7:23 ` Lee Jones [this message]
2016-09-08 9:43 ` loic pallardy
2016-09-08 11:03 ` Lee Jones
2016-08-31 20:50 ` [PATCH v2 09/19] remoteproc: core: Finalize dump resource table function Loic Pallardy
2016-09-08 8:26 ` Lee Jones
2016-09-08 9:46 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 10/19] remoteproc: core: Add function to verify an existing resource in rsc table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 11/19] remoteproc: core: Add function to get resource table spare bytes information Loic Pallardy
2016-09-08 8:32 ` Lee Jones
2016-09-08 9:47 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 12/19] remoteproc: core: Add vdev support and force mode to resource amending function Loic Pallardy
2016-09-08 8:48 ` Lee Jones
2016-09-08 9:49 ` loic pallardy
2016-09-08 11:02 ` Lee Jones
2016-09-08 13:11 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 13/19] remoteproc: core: Append resource only if spare resource present Loic Pallardy
2016-09-08 9:33 ` Lee Jones
2016-09-08 9:54 ` loic pallardy
2016-09-08 11:00 ` Lee Jones
2016-08-31 20:50 ` [PATCH v2 14/19] remoteproc: core: Add resource request action support Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 15/19] remoteproc: core: Add function to verify resource table consistency Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 16/19] remoteproc: core: Clean-up resource table sanity checks Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 17/19] remotecore: core: Add resource table pointer argument to rproc_handle_resource Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 18/19] remoteproc: core: Add function to create remoteproc local resource table Loic Pallardy
2016-09-08 10:20 ` Lee Jones
2016-09-08 13:15 ` loic pallardy
2016-09-15 18:58 ` Bjorn Andersson
2016-09-19 7:46 ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 19/19] remoteproc: core: Support empty resource tables Loic Pallardy
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