/*
* Cell Broadband Engine Performance Monitor
*
* (C) Copyright IBM Corporation 2006
*
* Author:
* David Erb (djerb@us.ibm.com)
* Kevin Corry (kevcorry@us.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ASM_CELL_PMU_H__
#define __ASM_CELL_PMU_H__
/* The Cell PMU has four hardware performance counters, which can be
* configured as four 32-bit counters or eight 16-bit counters.
*/
#define NR_PHYS_CTRS 4
#define NR_CTRS (NR_PHYS_CTRS * 2)
/* Macros for the pm_control register. */
#define CBE_PM_16BIT_CTR(ctr) (1 << (24 - ((ctr) & (NR_PHYS_CTRS - 1))))
#define CBE_PM_ENABLE_PERF_MON 0x80000000
#define CBE_PM_STOP_AT_MAX 0x40000000
#define CBE_PM_TRACE_MODE_GET(pm_control) (((pm_control) >> 28) & 0x3)
#define CBE_PM_TRACE_MODE_SET(mode) (((mode) & 0x3) << 28)
#define CBE_PM_COUNT_MODE_SET(count) (((count) & 0x3) << 18)
#define CBE_PM_FREEZE_ALL_CTRS 0x00100000
#define CBE_PM_ENABLE_EXT_TRACE 0x00008000
/* Macros for the trace_address register. */
#define CBE_PM_TRACE_BUF_FULL 0x00000800
#define CBE_PM_TRACE_BUF_EMPTY 0x00000400
#define CBE_PM_TRACE_BUF_DATA_COUNT(ta) ((ta) & 0x3ff)
#define CBE_PM_TRACE_BUF_MAX_COUNT 0x400
/* Macros for the pm07_control registers. */
#define CBE_PM_CTR_INPUT_MUX(pm07_control) (((pm07_control) >> 26) & 0x3f)
#define CBE_PM_CTR_INPUT_CONTROL 0x02000000
#define CBE_PM_CTR_POLARITY 0x01000000
#define CBE_PM_CTR_COUNT_CYCLES 0x00800000
#define CBE_PM_CTR_ENABLE 0x00400000
#define PM07_CTR_INPUT_MUX(x) (((x) & 0x3F) << 26)
#define PM07_CTR_INPUT_CONTROL(x) (((x) & 1) << 25)
#define PM07_CTR_POLARITY(x) (((x) & 1) << 24)
#define PM07_CTR_COUNT_CYCLES(x) (((x) & 1) << 23)
#define PM07_CTR_ENABLE(x) (((x) & 1) << 22)
/* Macros for the pm_status register. */
#define CBE_PM_CTR_OVERFLOW_INTR(ctr) (1 << (31 - ((ctr) & 7)))
enum pm_reg_name {
group_control,
debug_bus_control,
trace_address,
ext_tr_timer,
pm_status,
pm_control,
pm_interval,
pm_start_stop,
};
/* Routines for reading/writing the PMU registers. */
extern u32 cbe_read_phys_ctr(u32 cpu, u32 phys_ctr);
extern void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val);
extern u32 cbe_read_ctr(u32 cpu, u32 ctr);
extern void cbe_write_ctr(u32 cpu, u32 ctr, u32 val);
extern u32 cbe_read_pm07_control(u32 cpu, u32 ctr);
extern void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val);
extern u32 cbe_read_pm(u32 cpu, enum pm_reg_name reg);
extern void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val);
extern u32 cbe_get_ctr_size(u32 cpu, u32 phys_ctr);
extern void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size);
extern void cbe_enable_pm(u32 cpu);
extern void cbe_disable_pm(u32 cpu);
extern void cbe_read_trace_buffer(u32 cpu, u64 *buf);
extern void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask);
extern void cbe_disable_pm_interrupts(u32 cpu);
extern u32 cbe_get_and_clear_pm_interrupts(u32 cpu);
extern void cbe_sync_irq(int node);
/* Utility functions, macros */
extern u32 cbe_get_hw_thread_id(int cpu);
#define cbe_cpu_to_node(cpu) ((cpu) >> 1)
#define CBE_COUNT_SUPERVISOR_MODE 0
#define CBE_COUNT_HYPERVISOR_MODE 1
#define CBE_COUNT_PROBLEM_MODE 2
#define CBE_COUNT_ALL_MODES 3
#endif /* __ASM_CELL_PMU_H__ */
