1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Cell Broadband Engine Performance Monitor
4  *
5  * (C) Copyright IBM Corporation 2006
6  *
7  * Author:
8  *   David Erb (djerb@us.ibm.com)
9  *   Kevin Corry (kevcorry@us.ibm.com)
10  */
11 
12 #ifndef __ASM_CELL_PMU_H__
13 #define __ASM_CELL_PMU_H__
14 
15 /* The Cell PMU has four hardware performance counters, which can be
16  * configured as four 32-bit counters or eight 16-bit counters.
17  */
18 #define NR_PHYS_CTRS 4
19 #define NR_CTRS      (NR_PHYS_CTRS * 2)
20 
21 /* Macros for the pm_control register. */
22 #define CBE_PM_16BIT_CTR(ctr)              (1 << (24 - ((ctr) & (NR_PHYS_CTRS - 1))))
23 
24 /* Macros for the trace_address register. */
25 #define CBE_PM_TRACE_BUF_EMPTY             0x00000400
26 
27 enum pm_reg_name {
28 	group_control,
29 	debug_bus_control,
30 	trace_address,
31 	ext_tr_timer,
32 	pm_status,
33 	pm_control,
34 	pm_interval,
35 	pm_start_stop,
36 };
37 
38 #endif /* __ASM_CELL_PMU_H__ */
39