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-rw-r--r--include/asm-powerpc/cell-pmu.h105
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diff --git a/include/asm-powerpc/cell-pmu.h b/include/asm-powerpc/cell-pmu.h
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1/*
2 * Cell Broadband Engine Performance Monitor
3 *
4 * (C) Copyright IBM Corporation 2006
5 *
6 * Author:
7 * David Erb (djerb@us.ibm.com)
8 * Kevin Corry (kevcorry@us.ibm.com)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2, or (at your option)
13 * any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 */
24
25#ifndef __ASM_CELL_PMU_H__
26#define __ASM_CELL_PMU_H__
27
28/* The Cell PMU has four hardware performance counters, which can be
29 * configured as four 32-bit counters or eight 16-bit counters.
30 */
31#define NR_PHYS_CTRS 4
32#define NR_CTRS (NR_PHYS_CTRS * 2)
33
34/* Macros for the pm_control register. */
35#define CBE_PM_16BIT_CTR(ctr) (1 << (24 - ((ctr) & (NR_PHYS_CTRS - 1))))
36#define CBE_PM_ENABLE_PERF_MON 0x80000000
37#define CBE_PM_STOP_AT_MAX 0x40000000
38#define CBE_PM_TRACE_MODE_GET(pm_control) (((pm_control) >> 28) & 0x3)
39#define CBE_PM_TRACE_MODE_SET(mode) (((mode) & 0x3) << 28)
40#define CBE_PM_COUNT_MODE_SET(count) (((count) & 0x3) << 18)
41#define CBE_PM_FREEZE_ALL_CTRS 0x00100000
42#define CBE_PM_ENABLE_EXT_TRACE 0x00008000
43
44/* Macros for the trace_address register. */
45#define CBE_PM_TRACE_BUF_FULL 0x00000800
46#define CBE_PM_TRACE_BUF_EMPTY 0x00000400
47#define CBE_PM_TRACE_BUF_DATA_COUNT(ta) ((ta) & 0x3ff)
48#define CBE_PM_TRACE_BUF_MAX_COUNT 0x400
49
50/* Macros for the pm07_control registers. */
51#define CBE_PM_CTR_INPUT_MUX(pm07_control) (((pm07_control) >> 26) & 0x3f)
52#define CBE_PM_CTR_INPUT_CONTROL 0x02000000
53#define CBE_PM_CTR_POLARITY 0x01000000
54#define CBE_PM_CTR_COUNT_CYCLES 0x00800000
55#define CBE_PM_CTR_ENABLE 0x00400000
56#define PM07_CTR_INPUT_MUX(x) (((x) & 0x3F) << 26)
57#define PM07_CTR_INPUT_CONTROL(x) (((x) & 1) << 25)
58#define PM07_CTR_POLARITY(x) (((x) & 1) << 24)
59#define PM07_CTR_COUNT_CYCLES(x) (((x) & 1) << 23)
60#define PM07_CTR_ENABLE(x) (((x) & 1) << 22)
61
62/* Macros for the pm_status register. */
63#define CBE_PM_CTR_OVERFLOW_INTR(ctr) (1 << (31 - ((ctr) & 7)))
64
65enum pm_reg_name {
66 group_control,
67 debug_bus_control,
68 trace_address,
69 ext_tr_timer,
70 pm_status,
71 pm_control,
72 pm_interval,
73 pm_start_stop,
74};
75
76/* Routines for reading/writing the PMU registers. */
77extern u32 cbe_read_phys_ctr(u32 cpu, u32 phys_ctr);
78extern void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val);
79extern u32 cbe_read_ctr(u32 cpu, u32 ctr);
80extern void cbe_write_ctr(u32 cpu, u32 ctr, u32 val);
81
82extern u32 cbe_read_pm07_control(u32 cpu, u32 ctr);
83extern void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val);
84extern u32 cbe_read_pm(u32 cpu, enum pm_reg_name reg);
85extern void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val);
86
87extern u32 cbe_get_ctr_size(u32 cpu, u32 phys_ctr);
88extern void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size);
89
90extern void cbe_enable_pm(u32 cpu);
91extern void cbe_disable_pm(u32 cpu);
92
93extern void cbe_read_trace_buffer(u32 cpu, u64 *buf);
94
95extern void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask);
96extern void cbe_disable_pm_interrupts(u32 cpu);
97extern u32 cbe_get_and_clear_pm_interrupts(u32 cpu);
98extern void cbe_sync_irq(int node);
99
100#define CBE_COUNT_SUPERVISOR_MODE 0
101#define CBE_COUNT_HYPERVISOR_MODE 1
102#define CBE_COUNT_PROBLEM_MODE 2
103#define CBE_COUNT_ALL_MODES 3
104
105#endif /* __ASM_CELL_PMU_H__ */