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authorRalf Baechle <ralf@linux-mips.org>2012-12-11 15:02:55 -0500
committerRalf Baechle <ralf@linux-mips.org>2012-12-13 12:15:30 -0500
commitbdf20507da11a9a5b32ef04fa09f352828189aef (patch)
tree5fe9541a1b0dfe9628cd3fff26d6ac43de1206a9 /arch/mips/oprofile
parentfa4dbbc602a1fb020b627ca8d5a265ad7f3d0c48 (diff)
MIPS: PMC-Sierra Yosemite: Remove support.
Nobody seems to be interested anymore and upstream also never had an ethernet driver. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/oprofile')
-rw-r--r--arch/mips/oprofile/Makefile1
-rw-r--r--arch/mips/oprofile/common.c4
-rw-r--r--arch/mips/oprofile/op_model_rm9000.c138
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-$(CONFIG_CPU_MIPS32) += op_model_mipsxx.o
12oprofile-$(CONFIG_CPU_MIPS64) += op_model_mipsxx.o 12oprofile-$(CONFIG_CPU_MIPS64) += op_model_mipsxx.o
13oprofile-$(CONFIG_CPU_R10000) += op_model_mipsxx.o 13oprofile-$(CONFIG_CPU_R10000) += op_model_mipsxx.o
14oprofile-$(CONFIG_CPU_SB1) += op_model_mipsxx.o 14oprofile-$(CONFIG_CPU_SB1) += op_model_mipsxx.o
15oprofile-$(CONFIG_CPU_RM9000) += op_model_rm9000.o
16oprofile-$(CONFIG_CPU_LOONGSON2) += op_model_loongson2.o 15oprofile-$(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 @@
16#include "op_impl.h" 16#include "op_impl.h"
17 17
18extern struct op_mips_model op_model_mipsxx_ops __weak; 18extern struct op_mips_model op_model_mipsxx_ops __weak;
19extern struct op_mips_model op_model_rm9000_ops __weak;
20extern struct op_mips_model op_model_loongson2_ops __weak; 19extern struct op_mips_model op_model_loongson2_ops __weak;
21 20
22static struct op_mips_model *model; 21static struct op_mips_model *model;
@@ -94,9 +93,6 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
94 lmodel = &op_model_mipsxx_ops; 93 lmodel = &op_model_mipsxx_ops;
95 break; 94 break;
96 95
97 case CPU_RM9000:
98 lmodel = &op_model_rm9000_ops;
99 break;
100 case CPU_LOONGSON2: 96 case CPU_LOONGSON2:
101 lmodel = &op_model_loongson2_ops; 97 lmodel = &op_model_loongson2_ops;
102 break; 98 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 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2004 by Ralf Baechle
7 */
8#include <linux/init.h>
9#include <linux/oprofile.h>
10#include <linux/interrupt.h>
11#include <linux/smp.h>
12
13#include "op_impl.h"
14
15#define RM9K_COUNTER1_EVENT(event) ((event) << 0)
16#define RM9K_COUNTER1_SUPERVISOR (1ULL << 7)
17#define RM9K_COUNTER1_KERNEL (1ULL << 8)
18#define RM9K_COUNTER1_USER (1ULL << 9)
19#define RM9K_COUNTER1_ENABLE (1ULL << 10)
20#define RM9K_COUNTER1_OVERFLOW (1ULL << 15)
21
22#define RM9K_COUNTER2_EVENT(event) ((event) << 16)
23#define RM9K_COUNTER2_SUPERVISOR (1ULL << 23)
24#define RM9K_COUNTER2_KERNEL (1ULL << 24)
25#define RM9K_COUNTER2_USER (1ULL << 25)
26#define RM9K_COUNTER2_ENABLE (1ULL << 26)
27#define RM9K_COUNTER2_OVERFLOW (1ULL << 31)
28
29extern unsigned int rm9000_perfcount_irq;
30
31static struct rm9k_register_config {
32 unsigned int control;
33 unsigned int reset_counter1;
34 unsigned int reset_counter2;
35} reg;
36
37/* Compute all of the registers in preparation for enabling profiling. */
38
39static void rm9000_reg_setup(struct op_counter_config *ctr)
40{
41 unsigned int control = 0;
42
43 /* Compute the performance counter control word. */
44 /* For now count kernel and user mode */
45 if (ctr[0].enabled)
46 control |= RM9K_COUNTER1_EVENT(ctr[0].event) |
47 RM9K_COUNTER1_KERNEL |
48 RM9K_COUNTER1_USER |
49 RM9K_COUNTER1_ENABLE;
50 if (ctr[1].enabled)
51 control |= RM9K_COUNTER2_EVENT(ctr[1].event) |
52 RM9K_COUNTER2_KERNEL |
53 RM9K_COUNTER2_USER |
54 RM9K_COUNTER2_ENABLE;
55 reg.control = control;
56
57 reg.reset_counter1 = 0x80000000 - ctr[0].count;
58 reg.reset_counter2 = 0x80000000 - ctr[1].count;
59}
60
61/* Program all of the registers in preparation for enabling profiling. */
62
63static void rm9000_cpu_setup(void *args)
64{
65 uint64_t perfcount;
66
67 perfcount = ((uint64_t) reg.reset_counter2 << 32) | reg.reset_counter1;
68 write_c0_perfcount(perfcount);
69}
70
71static void rm9000_cpu_start(void *args)
72{
73 /* Start all counters on current CPU */
74 write_c0_perfcontrol(reg.control);
75}
76
77static void rm9000_cpu_stop(void *args)
78{
79 /* Stop all counters on current CPU */
80 write_c0_perfcontrol(0);
81}
82
83static irqreturn_t rm9000_perfcount_handler(int irq, void *dev_id)
84{
85 unsigned int control = read_c0_perfcontrol();
86 struct pt_regs *regs = get_irq_regs();
87 uint32_t counter1, counter2;
88 uint64_t counters;
89
90 /*
91 * RM9000 combines two 32-bit performance counters into a single
92 * 64-bit coprocessor zero register. To avoid a race updating the
93 * registers we need to stop the counters while we're messing with
94 * them ...
95 */
96 write_c0_perfcontrol(0);
97
98 counters = read_c0_perfcount();
99 counter1 = counters;
100 counter2 = counters >> 32;
101
102 if (control & RM9K_COUNTER1_OVERFLOW) {
103 oprofile_add_sample(regs, 0);
104 counter1 = reg.reset_counter1;
105 }
106 if (control & RM9K_COUNTER2_OVERFLOW) {
107 oprofile_add_sample(regs, 1);
108 counter2 = reg.reset_counter2;
109 }
110
111 counters = ((uint64_t)counter2 << 32) | counter1;
112 write_c0_perfcount(counters);
113 write_c0_perfcontrol(reg.control);
114
115 return IRQ_HANDLED;
116}
117
118static int __init rm9000_init(void)
119{
120 return request_irq(rm9000_perfcount_irq, rm9000_perfcount_handler,
121 0, "Perfcounter", NULL);
122}
123
124static void rm9000_exit(void)
125{
126 free_irq(rm9000_perfcount_irq, NULL);
127}
128
129struct op_mips_model op_model_rm9000_ops = {
130 .reg_setup = rm9000_reg_setup,
131 .cpu_setup = rm9000_cpu_setup,
132 .init = rm9000_init,
133 .exit = rm9000_exit,
134 .cpu_start = rm9000_cpu_start,
135 .cpu_stop = rm9000_cpu_stop,
136 .cpu_type = "mips/rm9000",
137 .num_counters = 2
138};
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