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64 lines
2.1 KiB
64 lines
2.1 KiB
/* |
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* Copyright 2014 Tilera Corporation. All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation, version 2. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
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* NON INFRINGEMENT. See the GNU General Public License for |
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* more details. |
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*/ |
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#ifndef _ASM_TILE_PMC_H |
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#define _ASM_TILE_PMC_H |
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#include <linux/ptrace.h> |
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#define TILE_BASE_COUNTERS 2 |
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/* Bitfields below are derived from SPR PERF_COUNT_CTL*/ |
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#ifndef __tilegx__ |
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/* PERF_COUNT_CTL on TILEPro */ |
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#define TILE_CTL_EXCL_USER (1 << 7) /* exclude user level */ |
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#define TILE_CTL_EXCL_KERNEL (1 << 8) /* exclude kernel level */ |
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#define TILE_CTL_EXCL_HV (1 << 9) /* exclude hypervisor level */ |
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#define TILE_SEL_MASK 0x7f /* 7 bits for event SEL, |
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COUNT_0_SEL */ |
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#define TILE_PLM_MASK 0x780 /* 4 bits priv level msks, |
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COUNT_0_MASK*/ |
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#define TILE_EVENT_MASK (TILE_SEL_MASK | TILE_PLM_MASK) |
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#else /* __tilegx__*/ |
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/* PERF_COUNT_CTL on TILEGx*/ |
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#define TILE_CTL_EXCL_USER (1 << 10) /* exclude user level */ |
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#define TILE_CTL_EXCL_KERNEL (1 << 11) /* exclude kernel level */ |
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#define TILE_CTL_EXCL_HV (1 << 12) /* exclude hypervisor level */ |
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#define TILE_SEL_MASK 0x3f /* 6 bits for event SEL, |
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COUNT_0_SEL*/ |
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#define TILE_BOX_MASK 0x1c0 /* 3 bits box msks, |
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COUNT_0_BOX */ |
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#define TILE_PLM_MASK 0x3c00 /* 4 bits priv level msks, |
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COUNT_0_MASK */ |
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#define TILE_EVENT_MASK (TILE_SEL_MASK | TILE_BOX_MASK | TILE_PLM_MASK) |
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#endif /* __tilegx__*/ |
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/* Takes register and fault number. Returns error to disable the interrupt. */ |
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typedef int (*perf_irq_t)(struct pt_regs *, int); |
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int userspace_perf_handler(struct pt_regs *regs, int fault); |
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perf_irq_t reserve_pmc_hardware(perf_irq_t new_perf_irq); |
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void release_pmc_hardware(void); |
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unsigned long pmc_get_overflow(void); |
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void pmc_ack_overflow(unsigned long status); |
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void unmask_pmc_interrupts(void); |
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void mask_pmc_interrupts(void); |
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#endif /* _ASM_TILE_PMC_H */
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