user/sven/linux.git/include/linux/remoteproc.h, branch v5.4.76

remoteproc: add vendor resources handling

2019-06-29T19:02:17Z

In order to allow rproc backend to handle vendor resources such as in OpenAMP, add a handle_rsc hook. This hook allow the rproc backends to handle vendor resources as they like. The hook will be called only for vendor resources and should return RSC_HANDLED on successful resource handling, RSC_IGNORED if resource was ignored, or a negative value on error. Signed-off-by: Clement Leger Signed-off-by: Bjorn Andersson

remoteproc: fix recovery procedure

2019-02-21T05:34:17Z

Commit 7e83cab824a87e83cab824a8 ("remoteproc: Modify recovery path to use rproc_{start,stop}()") replaces rproc_{shutdown,boot}() with rproc_{stop,start}(), which skips destroy the virtio device at stop but re-initializes it again at start. Issue is that struct virtio_dev is not correctly reinitialized like done at initial allocation thanks to kzalloc() and kobject is considered as already initialized by kernel. That is due to the fact struct virtio_dev is allocated and released at vdev resource handling level managed and virtio device is registered and unregistered at rproc subdevices level. Moreover kernel documentation mentions that device struct must be zero initialized before calling device_initialize(). This patch disentangles struct virtio_dev from struct rproc_vdev as the two struct don't have the same life-cycle. struct virtio_dev is now allocated on rproc_start() and released on rproc_stop(). This patch applies on top of patch remoteproc: create vdev subdevice with specific dma memory pool [1] [1]: https://patchwork.kernel.org/patch/10755781/ Fixes: 7e83cab824a8 ("remoteproc: Modify recovery path to use rproc_{start,stop}()") Reported-by: Xiang Xiao Signed-off-by: Loic Pallardy Signed-off-by: Bjorn Andersson

remoteproc: create vdev subdevice with specific dma memory pool

2019-02-21T05:15:35Z

This patch creates a dedicated vdev subdevice for each vdev declared in firmware resource table and associates carveout named "vdev%dbuffer" (with %d vdev index in resource table) if any as dma coherent memory pool. Then vdev subdevice is used as parent for virtio device. Signed-off-by: Loic Pallardy Signed-off-by: Bjorn Andersson

remoteproc: fix kernel-doc comment for parse_fw

2019-01-07T07:02:13Z

Fix the kernel-doc comment for "parse_fw" and fix a typo. Signed-off-by: Fabien Dessenne Signed-off-by: Bjorn Andersson

remoteproc: Add mechanism for custom dump function assignment

2018-10-19T19:53:55Z

This patch adds a mechanism for assigning each rproc dump segment with a custom dump function and private data. The dump function is to be called for each rproc segment during coredump if assigned. Signed-off-by: Sibi Sankar [bjorn: reordred arguments to rproc_coredump_add_custom_segment()] Signed-off-by: Bjorn Andersson

remoteproc: Introduce custom dump function for each remoteproc segment

2018-10-19T18:14:16Z

Introduce custom dump function and private data per remoteproc dump segment. The dump function is responsible for filling the device memory segment associated with coredump Signed-off-by: Sibi Sankar Signed-off-by: Bjorn Andersson

remoteproc: modify vring allocation to rely on centralized carveout allocator

2018-10-15T06:37:40Z

Current version of rproc_alloc_vring function supports only dynamic vring allocation. This patch allows to allocate vrings based on memory region declatation. Vrings are now manage like memory carveouts, to communize memory management code in rproc_alloc_registered_carveouts(). Allocated buffer is retrieved in rp_find_vq() thanks to rproc_find_carveout_by_name() functions for. This patch sets vrings names to vdev"x"vring"y" with x vdev index in resource table and y vring index in vdev. This will be updated when name will be associated to vdev in firmware resource table. Signed-off-by: Loic Pallardy Signed-off-by: Bjorn Andersson

remoteproc: add helper function to allocate rproc_mem_entry from reserved memory

2018-10-10T05:39:14Z

This patch introduces rproc_res_mem_entry_init() helper function to allocate a rproc_mem_entry structure from a reserved memory region. In that case, rproc_mem_entry structure has no alloc and release ops. It will be used to assigned the specified reserved memory to any rproc sub device. Relation between rproc_mem_entry and rproc sub device will be done by name. Signed-off-by: Loic Pallardy Signed-off-by: Bjorn Andersson

remoteproc: add alloc ops in rproc_mem_entry struct

2018-10-10T05:39:12Z

Memory entry could be allocated in different ways (ioremap, dma_alloc_coherent, internal RAM allocator...). This patch introduces an alloc ops in rproc_mem_entry structure to associate dedicated allocation mechanism to each memory entry descriptor in order to do remote core agnostic from memory allocators. The introduction of this ops allows to perform allocation of all registered carveout at the same time, just before calling rproc_start(). It simplifies and makes uniform carveout management whatever origin. Signed-off-by: Loic Pallardy Signed-off-by: Bjorn Andersson

remoteproc: introduce rproc_add_carveout function

2018-10-10T05:39:08Z

This patch introduces a new API to allow platform driver to register platform specific carveout regions. Signed-off-by: Loic Pallardy Acked-by: Bjorn Andersson Signed-off-by: Bjorn Andersson