33  * A table contains SDB pointers (8 bytes) and one table-link entry
59  *				   1 page  for SDB-tables
63  *				  16 pages for SDB-tables
80 	unsigned long head;	   /* index of SDB of buffer head */
81 	unsigned long alert_mark;  /* index of SDB of alert request position */
82 	unsigned long empty_mark;  /* mark of SDB not marked full */
83 	unsigned long *sdb_index;  /* SDB address for fast lookup */
151 			/* Process SDB pointer */  in free_sampling_buffer()
166 	unsigned long sdb, *trailer;  in alloc_sample_data_block()  local
169 	sdb = get_zeroed_page(gfp_flags);  in alloc_sample_data_block()
170 	if (!sdb)  in alloc_sample_data_block()
172 	trailer = trailer_entry_ptr(sdb);  in alloc_sample_data_block()
175 	/* Link SDB into the sample-data-block-table */  in alloc_sample_data_block()
176 	*sdbt = sdb;  in alloc_sample_data_block()
207 	 * entry in an SDB-table.  in realloc_sampling_buffer()
226 		/* Allocate a new SDB-table if it is full. */  in realloc_sampling_buffer()
247 			/* Undo last SDBT. An SDBT with no SDB at its first  in realloc_sampling_buffer()
269 			    " settings: sdbt %lu sdb %lu\n", __func__,  in realloc_sampling_buffer()
278  * specified number of sample-data-blocks (SDB).  For each allocation,
388 	 *	 sample-data-blocks (SDB). This is done per SDB. This  in allocate_buffers()
390 	 *	 one SDB, on very high frequency and work loads there might  in allocate_buffers()
401 	 *	 (one SDB) for every 10000 HZ frequency increment.  in allocate_buffers()
424 			    "%s: rate %lu f %lu sdb %lu/%lu"  in allocate_buffers()
520 	 * new SDB-request cannot be satisfied immediately.  in extend_sampling_buffer()
1353  * Get trailer entry by index of SDB.
1358 	unsigned long sdb;  in aux_sdb_trailer()  local
1361 	sdb = aux->sdb_index[index];  in aux_sdb_trailer()
1362 	return (struct hws_trailer_entry *)trailer_entry_ptr(sdb);  in aux_sdb_trailer()
1470  * Set alert indicator on SDB at index @alert_index while sampler is running.
1487 			 * SDB is already set by hardware.  in aux_set_alert()
1506  * Set alert indicator on the SDB at index of aux->alert_mark. If this SDB is
1542 		 * Set alert indicator on empty SDB. Should check race  in aux_reset_buffer()
1550 	 * Start scanning from one SDB behind empty_mark. If the new alert  in aux_reset_buffer()
1665 	/* Free SDBT. SDB is freed by the caller */  in aux_buffer_free()
1677 static void aux_sdb_init(unsigned long sdb)  in aux_sdb_init()  argument
1681 	te = (struct hws_trailer_entry *)trailer_entry_ptr(sdb);  in aux_sdb_init()
1904 	 * using the SDB-table start.  Reset TEAR_REG event hardware register  in cpumsf_pmu_add()