#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include <linux/ktime.h>
#include "intel_guc_fwif.h"
* @lock: protects access to the commands buffer and buffer descriptor
* @desc: pointer to the buffer descriptor
* @cmds: pointer to the commands buffer
- * @size: size of the commands buffer
+ * @size: size of the commands buffer in dwords
+ * @head: local shadow copy of head in dwords
+ * @tail: local shadow copy of tail in dwords
+ * @space: local shadow copy of space in dwords
+ * @broken: flag to indicate if descriptor data is broken
*/
struct intel_guc_ct_buffer {
spinlock_t lock;
struct guc_ct_buffer_desc *desc;
u32 *cmds;
u32 size;
+ u32 tail;
+ u32 head;
+ u32 space;
+ bool broken;
};
-
/** Top-level structure for Command Transport related data
*
* Includes a pair of CT buffers for bi-directional communication and tracking
struct tasklet_struct receive_tasklet;
struct {
- u32 last_fence; /* last fence used to send request */
+ u16 last_fence; /* last fence used to send request */
spinlock_t lock; /* protects pending requests list */
struct list_head pending; /* requests waiting for response */
struct list_head incoming; /* incoming requests */
struct work_struct worker; /* handler for incoming requests */
} requests;
+
+ /** @stall_time: time of first time a CTB submission is stalled */
+ ktime_t stall_time;
};
void intel_guc_ct_init_early(struct intel_guc_ct *ct);
return ct->enabled;
}
+#define INTEL_GUC_CT_SEND_NB BIT(31)
int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len,
- u32 *response_buf, u32 response_buf_size);
+ u32 *response_buf, u32 response_buf_size, u32 flags);
void intel_guc_ct_event_handler(struct intel_guc_ct *ct);
#endif /* _INTEL_GUC_CT_H_ */