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remoteproc: perserve resource table data

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Copy resource table from first to second firmware loading.
After firmware is loaded to memory, update the vdevs resource
pointer to the resource table kept in device memory.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Acked-by: Ido Yariv <ido@wizery.com>
[rebase, terminology and style changes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This commit is contained in:
Ohad Ben-Cohen 2013-04-07 14:06:07 +03:00
parent ba7290e016
commit a2b950ac7b
3 changed files with 88 additions and 20 deletions
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9
include/linux/remoteproc.h
View file

@ -401,6 +401,9 @@ enum rproc_crash_type {
* @crash_comp: completion used to sync crash handler and the rproc reload
* @recovery_disabled: flag that state if recovery was disabled
* @max_notifyid: largest allocated notify id.
* @table_ptr: pointer to the resource table in effect
* @cached_table: copy of the resource table
* @table_csum: checksum of the resource table
*/
struct rproc {
struct klist_node node;
@ -429,9 +432,13 @@ struct rproc {
struct completion crash_comp;
bool recovery_disabled;
int max_notifyid;
struct resource_table *table_ptr;
struct resource_table *cached_table;
u32 table_csum;
};
/* we currently support only two vrings per rvdev */
#define RVDEV_NUM_VRINGS 2
/**
@ -464,6 +471,7 @@ struct rproc_vring {
* @vring: the vrings for this vdev
* @dfeatures: virtio device features
* @gfeatures: virtio guest features
* @rsc_offset: offset of the vdev's resource entry
*/
struct rproc_vdev {
struct list_head node;
@ -472,6 +480,7 @@ struct rproc_vdev {
struct rproc_vring vring[RVDEV_NUM_VRINGS];
unsigned long dfeatures;
unsigned long gfeatures;
u32 rsc_offset;
};
struct rproc *rproc_alloc(struct device *dev, const char *name,