diff options
Diffstat (limited to 'arch/mips/oprofile')
| -rw-r--r-- | arch/mips/oprofile/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/oprofile/common.c | 4 | ||||
| -rw-r--r-- | arch/mips/oprofile/op_model_rm9000.c | 138 |
3 files changed, 0 insertions, 143 deletions
diff --git a/arch/mips/oprofile/Makefile b/arch/mips/oprofile/Makefile index 1208c280f77d..8232dbd1228d 100644 --- a/arch/mips/oprofile/Makefile +++ b/arch/mips/oprofile/Makefile @@ -12,5 +12,4 @@ oprofile-$(CONFIG_CPU_MIPS32) += op_model_mipsxx.o oprofile-$(CONFIG_CPU_MIPS64) += op_model_mipsxx.o oprofile-$(CONFIG_CPU_R10000) += op_model_mipsxx.o oprofile-$(CONFIG_CPU_SB1) += op_model_mipsxx.o -oprofile-$(CONFIG_CPU_RM9000) += op_model_rm9000.o oprofile-$(CONFIG_CPU_LOONGSON2) += op_model_loongson2.o diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index f80480a5a032..be387faef871 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -16,7 +16,6 @@ #include "op_impl.h" extern struct op_mips_model op_model_mipsxx_ops __weak; -extern struct op_mips_model op_model_rm9000_ops __weak; extern struct op_mips_model op_model_loongson2_ops __weak; static struct op_mips_model *model; @@ -94,9 +93,6 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) lmodel = &op_model_mipsxx_ops; break; - case CPU_RM9000: - lmodel = &op_model_rm9000_ops; - break; case CPU_LOONGSON2: lmodel = &op_model_loongson2_ops; break; diff --git a/arch/mips/oprofile/op_model_rm9000.c b/arch/mips/oprofile/op_model_rm9000.c deleted file mode 100644 index 3aa81384966d..000000000000 --- a/arch/mips/oprofile/op_model_rm9000.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2004 by Ralf Baechle - */ -#include <linux/init.h> -#include <linux/oprofile.h> -#include <linux/interrupt.h> -#include <linux/smp.h> - -#include "op_impl.h" - -#define RM9K_COUNTER1_EVENT(event) ((event) << 0) -#define RM9K_COUNTER1_SUPERVISOR (1ULL << 7) -#define RM9K_COUNTER1_KERNEL (1ULL << 8) -#define RM9K_COUNTER1_USER (1ULL << 9) -#define RM9K_COUNTER1_ENABLE (1ULL << 10) -#define RM9K_COUNTER1_OVERFLOW (1ULL << 15) - -#define RM9K_COUNTER2_EVENT(event) ((event) << 16) -#define RM9K_COUNTER2_SUPERVISOR (1ULL << 23) -#define RM9K_COUNTER2_KERNEL (1ULL << 24) -#define RM9K_COUNTER2_USER (1ULL << 25) -#define RM9K_COUNTER2_ENABLE (1ULL << 26) -#define RM9K_COUNTER2_OVERFLOW (1ULL << 31) - -extern unsigned int rm9000_perfcount_irq; - -static struct rm9k_register_config { - unsigned int control; - unsigned int reset_counter1; - unsigned int reset_counter2; -} reg; - -/* Compute all of the registers in preparation for enabling profiling. */ - -static void rm9000_reg_setup(struct op_counter_config *ctr) -{ - unsigned int control = 0; - - /* Compute the performance counter control word. */ - /* For now count kernel and user mode */ - if (ctr[0].enabled) - control |= RM9K_COUNTER1_EVENT(ctr[0].event) | - RM9K_COUNTER1_KERNEL | - RM9K_COUNTER1_USER | - RM9K_COUNTER1_ENABLE; - if (ctr[1].enabled) - control |= RM9K_COUNTER2_EVENT(ctr[1].event) | - RM9K_COUNTER2_KERNEL | - RM9K_COUNTER2_USER | - RM9K_COUNTER2_ENABLE; - reg.control = control; - - reg.reset_counter1 = 0x80000000 - ctr[0].count; - reg.reset_counter2 = 0x80000000 - ctr[1].count; -} - -/* Program all of the registers in preparation for enabling profiling. */ - -static void rm9000_cpu_setup(void *args) -{ - uint64_t perfcount; - - perfcount = ((uint64_t) reg.reset_counter2 << 32) | reg.reset_counter1; - write_c0_perfcount(perfcount); -} - -static void rm9000_cpu_start(void *args) -{ - /* Start all counters on current CPU */ - write_c0_perfcontrol(reg.control); -} - -static void rm9000_cpu_stop(void *args) -{ - /* Stop all counters on current CPU */ - write_c0_perfcontrol(0); -} - -static irqreturn_t rm9000_perfcount_handler(int irq, void *dev_id) -{ - unsigned int control = read_c0_perfcontrol(); - struct pt_regs *regs = get_irq_regs(); - uint32_t counter1, counter2; - uint64_t counters; - - /* - * RM9000 combines two 32-bit performance counters into a single - * 64-bit coprocessor zero register. To avoid a race updating the - * registers we need to stop the counters while we're messing with - * them ... - */ - write_c0_perfcontrol(0); - - counters = read_c0_perfcount(); - counter1 = counters; - counter2 = counters >> 32; - - if (control & RM9K_COUNTER1_OVERFLOW) { - oprofile_add_sample(regs, 0); - counter1 = reg.reset_counter1; - } - if (control & RM9K_COUNTER2_OVERFLOW) { - oprofile_add_sample(regs, 1); - counter2 = reg.reset_counter2; - } - - counters = ((uint64_t)counter2 << 32) | counter1; - write_c0_perfcount(counters); - write_c0_perfcontrol(reg.control); - - return IRQ_HANDLED; -} - -static int __init rm9000_init(void) -{ - return request_irq(rm9000_perfcount_irq, rm9000_perfcount_handler, - 0, "Perfcounter", NULL); -} - -static void rm9000_exit(void) -{ - free_irq(rm9000_perfcount_irq, NULL); -} - -struct op_mips_model op_model_rm9000_ops = { - .reg_setup = rm9000_reg_setup, - .cpu_setup = rm9000_cpu_setup, - .init = rm9000_init, - .exit = rm9000_exit, - .cpu_start = rm9000_cpu_start, - .cpu_stop = rm9000_cpu_stop, - .cpu_type = "mips/rm9000", - .num_counters = 2 -}; |