forked from Mirrors/opensbi
93f7d819fd
In order to allow events to be dynamically added, remove the existing static array of events and use a simply linked list of supported events. This allows us to move the cb_ops into this list and associated it with an event_id. Drivers can now register cb_ops before bringing up the sse core to handle additional events (platform ones for instance). sbi_sse_init() now allocates as many events as present in the linked list. Events can now be added with sbi_sse_add_event() which allows to add new supported events with some callback operations if any. If an event is not to be supported, then sbi_sse_add_event() should not be called. This approach currently consider that local events are to be supported on all harts (ie, they all support the same ISA or dependencies). If per-hart event availability needs to be supported, then, an is_supported() callback could be added later and called for each hart. Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com>