diff options
Diffstat (limited to 'libcpu/arm/realview-a8-vmm/pmu.h')
| -rw-r--r-- | libcpu/arm/realview-a8-vmm/pmu.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/libcpu/arm/realview-a8-vmm/pmu.h b/libcpu/arm/realview-a8-vmm/pmu.h deleted file mode 100644 index 64a74b5d39..0000000000 --- a/libcpu/arm/realview-a8-vmm/pmu.h +++ /dev/null @@ -1,159 +0,0 @@ -/* - * Copyright (c) 2006-2021, RT-Thread Development Team - * - * SPDX-License-Identifier: Apache-2.0 - * - * Change Logs: - * Date Author Notes - */ -#ifndef __PMU_H__ -#define __PMU_H__ - -#include "board.h" - -/* Number of counters */ -#define ARM_PMU_CNTER_NR 4 - -enum rt_hw_pmu_event_type { - ARM_PMU_EVENT_PMNC_SW_INCR = 0x00, - ARM_PMU_EVENT_L1_ICACHE_REFILL = 0x01, - ARM_PMU_EVENT_ITLB_REFILL = 0x02, - ARM_PMU_EVENT_L1_DCACHE_REFILL = 0x03, - ARM_PMU_EVENT_L1_DCACHE_ACCESS = 0x04, - ARM_PMU_EVENT_DTLB_REFILL = 0x05, - ARM_PMU_EVENT_MEM_READ = 0x06, - ARM_PMU_EVENT_MEM_WRITE = 0x07, - ARM_PMU_EVENT_INSTR_EXECUTED = 0x08, - ARM_PMU_EVENT_EXC_TAKEN = 0x09, - ARM_PMU_EVENT_EXC_EXECUTED = 0x0A, - ARM_PMU_EVENT_CID_WRITE = 0x0B, -}; - -/* Enable bit */ -#define ARM_PMU_PMCR_E (0x01 << 0) -/* Event counter reset */ -#define ARM_PMU_PMCR_P (0x01 << 1) -/* Cycle counter reset */ -#define ARM_PMU_PMCR_C (0x01 << 2) -/* Cycle counter divider */ -#define ARM_PMU_PMCR_D (0x01 << 3) - -#ifdef __GNUC__ -rt_inline void rt_hw_pmu_enable_cnt(int divide64) -{ - unsigned long pmcr; - unsigned long pmcntenset; - - asm volatile ("mrc p15, 0, %0, c9, c12, 0" : "=r"(pmcr)); - pmcr |= ARM_PMU_PMCR_E | ARM_PMU_PMCR_P | ARM_PMU_PMCR_C; - if (divide64) - pmcr |= ARM_PMU_PMCR_D; - else - pmcr &= ~ARM_PMU_PMCR_D; - asm volatile ("mcr p15, 0, %0, c9, c12, 0" :: "r"(pmcr)); - - /* enable all the counters */ - pmcntenset = ~0; - asm volatile ("mcr p15, 0, %0, c9, c12, 1" :: "r"(pmcntenset)); - /* clear overflows(just in case) */ - asm volatile ("mcr p15, 0, %0, c9, c12, 3" :: "r"(pmcntenset)); -} - -rt_inline unsigned long rt_hw_pmu_get_control(void) -{ - unsigned long pmcr; - asm ("mrc p15, 0, %0, c9, c12, 0" : "=r"(pmcr)); - return pmcr; -} - -rt_inline unsigned long rt_hw_pmu_get_ceid(void) -{ - unsigned long reg; - /* only PMCEID0 is supported, PMCEID1 is RAZ. */ - asm ("mrc p15, 0, %0, c9, c12, 6" : "=r"(reg)); - return reg; -} - -rt_inline unsigned long rt_hw_pmu_get_cnten(void) -{ - unsigned long pmcnt; - asm ("mrc p15, 0, %0, c9, c12, 1" : "=r"(pmcnt)); - return pmcnt; -} - -rt_inline void rt_hw_pmu_reset_cycle(void) -{ - unsigned long pmcr; - - asm volatile ("mrc p15, 0, %0, c9, c12, 0" : "=r"(pmcr)); - pmcr |= ARM_PMU_PMCR_C; - asm volatile ("mcr p15, 0, %0, c9, c12, 0" :: "r"(pmcr)); - asm volatile ("isb"); -} - -rt_inline void rt_hw_pmu_reset_event(void) -{ - unsigned long pmcr; - - asm volatile ("mrc p15, 0, %0, c9, c12, 0" : "=r"(pmcr)); - pmcr |= ARM_PMU_PMCR_P; - asm volatile ("mcr p15, 0, %0, c9, c12, 0" :: "r"(pmcr)); - asm volatile ("isb"); -} - -rt_inline unsigned long rt_hw_pmu_get_cycle(void) -{ - unsigned long cyc; - asm volatile ("isb"); - asm volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cyc)); - return cyc; -} - -rt_inline void rt_hw_pmu_select_counter(int idx) -{ - RT_ASSERT(idx < ARM_PMU_CNTER_NR); - - asm volatile ("mcr p15, 0, %0, c9, c12, 5" : : "r"(idx)); - /* Linux add an isb here, don't know why here. */ - asm volatile ("isb"); -} - -rt_inline void rt_hw_pmu_select_event(int idx, - enum rt_hw_pmu_event_type eve) -{ - RT_ASSERT(idx < ARM_PMU_CNTER_NR); - - rt_hw_pmu_select_counter(idx); - asm volatile ("mcr p15, 0, %0, c9, c13, 1" : : "r"(eve)); -} - -rt_inline unsigned long rt_hw_pmu_read_counter(int idx) -{ - unsigned long reg; - - rt_hw_pmu_select_counter(idx); - asm volatile ("isb"); - asm volatile ("mrc p15, 0, %0, c9, c13, 2" : "=r"(reg)); - return reg; -} - -rt_inline unsigned long rt_hw_pmu_get_ovsr(void) -{ - unsigned long reg; - asm volatile ("isb"); - asm ("mrc p15, 0, %0, c9, c12, 3" : "=r"(reg)); - return reg; -} - -rt_inline void rt_hw_pmu_clear_ovsr(unsigned long reg) -{ - asm ("mcr p15, 0, %0, c9, c12, 3" : : "r"(reg)); - asm volatile ("isb"); -} - -#endif - -void rt_hw_pmu_dump_feature(void); - -#endif /* end of include guard: __PMU_H__ */ - |