diff options
Diffstat (limited to 'drivers/vfio/platform/vfio_platform_private.h')
| -rw-r--r-- | drivers/vfio/platform/vfio_platform_private.h | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/vfio/platform/vfio_platform_private.h b/drivers/vfio/platform/vfio_platform_private.h index 1c9b3d59543c..42816dd280cb 100644 --- a/drivers/vfio/platform/vfio_platform_private.h +++ b/drivers/vfio/platform/vfio_platform_private.h @@ -56,6 +56,10 @@ struct vfio_platform_device { u32 num_irqs; int refcnt; struct mutex igate; + struct module *parent_module; + const char *compat; + struct module *reset_module; + struct device *device; /* * These fields should be filled by the bus specific binder @@ -70,10 +74,13 @@ struct vfio_platform_device { int (*reset)(struct vfio_platform_device *vdev); }; -struct vfio_platform_reset_combo { - const char *compat; - const char *reset_function_name; - const char *module_name; +typedef int (*vfio_platform_reset_fn_t)(struct vfio_platform_device *vdev); + +struct vfio_platform_reset_node { + struct list_head link; + char *compat; + struct module *owner; + vfio_platform_reset_fn_t reset; }; extern int vfio_platform_probe_common(struct vfio_platform_device *vdev, @@ -89,4 +96,29 @@ extern int vfio_platform_set_irqs_ioctl(struct vfio_platform_device *vdev, unsigned start, unsigned count, void *data); +extern void __vfio_platform_register_reset(struct vfio_platform_reset_node *n); +extern void vfio_platform_unregister_reset(const char *compat, + vfio_platform_reset_fn_t fn); +#define vfio_platform_register_reset(__compat, __reset) \ +static struct vfio_platform_reset_node __reset ## _node = { \ + .owner = THIS_MODULE, \ + .compat = __compat, \ + .reset = __reset, \ +}; \ +__vfio_platform_register_reset(&__reset ## _node) + +#define module_vfio_reset_handler(compat, reset) \ +MODULE_ALIAS("vfio-reset:" compat); \ +static int __init reset ## _module_init(void) \ +{ \ + vfio_platform_register_reset(compat, reset); \ + return 0; \ +}; \ +static void __exit reset ## _module_exit(void) \ +{ \ + vfio_platform_unregister_reset(compat, reset); \ +}; \ +module_init(reset ## _module_init); \ +module_exit(reset ## _module_exit) + #endif /* VFIO_PLATFORM_PRIVATE_H */ |