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- /*
- * Copyright (c) 2016 - 2018 Cadence Design Systems Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
- #ifndef _XRP_HOST_COMMON_H
- #define _XRP_HOST_COMMON_H
- #include <stdlib.h>
- #include <stdint.h>
- #include "xrp_atomic.h"
- #include "xrp_thread_impl.h"
- #include "xrp_host_impl.h"
- #include "xrp_report.h"
- struct xrp_refcounted {
- _Atomic unsigned long count;
- };
- struct xrp_device {
- struct xrp_refcounted ref;
- struct xrp_device_impl impl;
- };
- struct xrp_buffer {
- struct xrp_refcounted ref;
- struct xrp_device *device;
- enum {
- XRP_BUFFER_TYPE_HOST,
- XRP_BUFFER_TYPE_DEVICE,
- } type;
- void *ptr;
- uint64_t phy_addr;
- size_t size;
- _Atomic unsigned long map_count;
- enum xrp_access_flags map_flags;
- struct xrp_buffer_impl impl;
- };
- struct xrp_buffer_group_record {
- struct xrp_buffer *buffer;
- enum xrp_access_flags access_flags;
- };
- struct xrp_buffer_group {
- struct xrp_refcounted ref;
- xrp_mutex mutex;
- size_t n_buffers;
- size_t capacity;
- struct xrp_buffer_group_record *buffer;
- };
- struct xrp_queue {
- struct xrp_refcounted ref;
- struct xrp_device *device;
- int use_nsid;
- int priority;
- char nsid[XRP_NAMESPACE_ID_SIZE];
- struct xrp_queue_impl impl;
- };
- struct xrp_event_link {
- struct xrp_event *group;
- struct xrp_event_link *next, *prev;
- };
- struct xrp_event {
- struct xrp_refcounted ref;
- struct xrp_queue *queue;
- _Atomic enum xrp_status status;
- struct xrp_event_impl impl;
- struct xrp_event *group;
- struct xrp_event_link *link;
- };
- struct xrp_report{
- struct xrp_refcounted ref;
- struct xrp_device *device;
- struct xrp_report_list list;
- void *report_buf;
- int buf_size;
- xrp_thread report_thread;
- int process_sig;
- };
- /* Helpers */
- static inline void set_status(enum xrp_status *status, enum xrp_status v)
- {
- if (status)
- *status = v;
- }
- static inline void *alloc_refcounted(size_t sz)
- {
- void *buf = calloc(1, sz);
- struct xrp_refcounted *ref = buf;
- if (ref)
- ref->count = 1;
- return buf;
- }
- static inline void retain_refcounted(void *buf)
- {
- struct xrp_refcounted *ref = buf;
- (void)++ref->count;
- }
- static inline int last_release_refcounted(void *buf)
- {
- struct xrp_refcounted *ref = buf;
- return --ref->count == 0;
- }
- #endif
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