| /Linux-v6.6/drivers/counter/ |
| D | counter-core.c | 3 * Generic Counter interface
7 #include <linux/counter.h>
22 #include "counter-chrdev.h"
23 #include "counter-sysfs.h"
25 #define COUNTER_NAME "counter"
27 /* Provides a unique ID for each counter device */
31 struct counter_device counter; member
42 struct counter_device *const counter = in counter_device_release() local
45 counter_chrdev_remove(counter); in counter_device_release()
48 kfree(container_of(counter, struct counter_device_allochelper, counter)); in counter_device_release()
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| D | counter-chrdev.c | 3 * Generic Counter character device interface
7 #include <linux/counter.h>
24 #include "counter-chrdev.h"
68 struct counter_device *const counter = filp->private_data; in counter_chrdev_read() local
72 if (!counter->ops) in counter_chrdev_read()
79 if (kfifo_is_empty(&counter->events)) { in counter_chrdev_read()
83 err = wait_event_interruptible(counter->events_wait, in counter_chrdev_read()
84 !kfifo_is_empty(&counter->events) || in counter_chrdev_read()
85 !counter->ops); in counter_chrdev_read()
88 if (!counter->ops) in counter_chrdev_read()
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| D | rz-mtu3-cnt.c | 3 * Renesas RZ/G2L MTU3a Counter driver
9 #include <linux/counter.h>
23 * TCNT: Timer Counter
25 * TCNTLW: Timer Longword Counter
66 * struct rz_mtu3_cnt - MTU3 counter private data
71 * @count_is_enabled: Enabled state of Counter value channel
97 static inline struct rz_mtu3_channel *rz_mtu3_get_ch(struct counter_device *counter, int id) in rz_mtu3_get_ch() argument
99 struct rz_mtu3_cnt *const priv = counter_priv(counter); in rz_mtu3_get_ch()
105 static bool rz_mtu3_is_counter_invalid(struct counter_device *counter, int id) in rz_mtu3_is_counter_invalid() argument
107 struct rz_mtu3_cnt *const priv = counter_priv(counter); in rz_mtu3_is_counter_invalid()
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| D | ti-ecap-capture.c | 10 #include <linux/counter.h>
86 * @pm_ctx.time_cntr: timestamp counter value
100 static u8 ecap_cnt_capture_get_evmode(struct counter_device *counter) in ecap_cnt_capture_get_evmode() argument
102 struct ecap_cnt_dev *ecap_dev = counter_priv(counter); in ecap_cnt_capture_get_evmode()
105 pm_runtime_get_sync(counter->parent); in ecap_cnt_capture_get_evmode()
107 pm_runtime_put_sync(counter->parent); in ecap_cnt_capture_get_evmode()
112 static void ecap_cnt_capture_set_evmode(struct counter_device *counter, u8 ev_mode) in ecap_cnt_capture_set_evmode() argument
114 struct ecap_cnt_dev *ecap_dev = counter_priv(counter); in ecap_cnt_capture_set_evmode()
116 pm_runtime_get_sync(counter->parent); in ecap_cnt_capture_set_evmode()
118 pm_runtime_put_sync(counter->parent); in ecap_cnt_capture_set_evmode()
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| D | interrupt-cnt.c | 6 #include <linux/counter.h>
29 struct counter_device *counter = dev_id; in interrupt_cnt_isr() local
30 struct interrupt_cnt_priv *priv = counter_priv(counter); in interrupt_cnt_isr()
34 counter_push_event(counter, COUNTER_EVENT_CHANGE_OF_STATE, 0); in interrupt_cnt_isr()
39 static int interrupt_cnt_enable_read(struct counter_device *counter, in interrupt_cnt_enable_read() argument
42 struct interrupt_cnt_priv *priv = counter_priv(counter); in interrupt_cnt_enable_read()
49 static int interrupt_cnt_enable_write(struct counter_device *counter, in interrupt_cnt_enable_write() argument
52 struct interrupt_cnt_priv *priv = counter_priv(counter); in interrupt_cnt_enable_write()
77 static int interrupt_cnt_action_read(struct counter_device *counter, in interrupt_cnt_action_read() argument
87 static int interrupt_cnt_read(struct counter_device *counter, in interrupt_cnt_read() argument
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| D | stm32-timer-cnt.c | 3 * STM32 Timer Encoder and Counter driver
10 #include <linux/counter.h>
46 static int stm32_count_read(struct counter_device *counter, in stm32_count_read() argument
49 struct stm32_timer_cnt *const priv = counter_priv(counter); in stm32_count_read()
58 static int stm32_count_write(struct counter_device *counter, in stm32_count_write() argument
61 struct stm32_timer_cnt *const priv = counter_priv(counter); in stm32_count_write()
71 static int stm32_count_function_read(struct counter_device *counter, in stm32_count_function_read() argument
75 struct stm32_timer_cnt *const priv = counter_priv(counter); in stm32_count_function_read()
98 static int stm32_count_function_write(struct counter_device *counter, in stm32_count_function_write() argument
102 struct stm32_timer_cnt *const priv = counter_priv(counter); in stm32_count_function_write()
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| D | i8254.c | 8 #include <linux/counter.h>
46 * @preset: array of Counter Register states
57 static int i8254_count_read(struct counter_device *const counter, struct counter_count *const count, in i8254_count_read() argument
60 struct i8254 *const priv = counter_priv(counter); in i8254_count_read()
84 static int i8254_function_read(struct counter_device *const counter, in i8254_function_read() argument
96 static int i8254_action_read(struct counter_device *const counter, in i8254_action_read() argument
101 struct i8254 *const priv = counter_priv(counter); in i8254_action_read()
125 static int i8254_count_ceiling_read(struct counter_device *const counter, in i8254_count_ceiling_read() argument
128 struct i8254 *const priv = counter_priv(counter); in i8254_count_ceiling_read()
134 /* Rate Generator decrements 0 by one and the counter "wraps around" */ in i8254_count_ceiling_read()
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| D | counter-sysfs.c | 3 * Generic Counter sysfs interface
6 #include <linux/counter.h>
20 #include "counter-sysfs.h"
28 * struct counter_attribute - Counter sysfs attribute
30 * @l: node to add Counter attribute to attribute group list
31 * @comp: Counter component callbacks and data
32 * @scope: Counter scope of the attribute
109 struct counter_device *const counter = counter_from_dev(dev); in counter_comp_u8_show() local
115 err = a->comp.device_u8_read(counter, &data); in counter_comp_u8_show()
118 err = a->comp.signal_u8_read(counter, a->parent, &data); in counter_comp_u8_show()
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| D | ti-eqep.c | 5 * Counter driver for Texas Instruments Enhanced Quadrature Encoder Pulse (eQEP)
9 #include <linux/counter.h>
76 /* Position Counter Input Modes */
85 struct counter_device counter; member
90 static struct ti_eqep_cnt *ti_eqep_count_from_counter(struct counter_device *counter) in ti_eqep_count_from_counter() argument
92 return counter_priv(counter); in ti_eqep_count_from_counter()
95 static int ti_eqep_count_read(struct counter_device *counter, in ti_eqep_count_read() argument
98 struct ti_eqep_cnt *priv = ti_eqep_count_from_counter(counter); in ti_eqep_count_read()
107 static int ti_eqep_count_write(struct counter_device *counter, in ti_eqep_count_write() argument
110 struct ti_eqep_cnt *priv = ti_eqep_count_from_counter(counter); in ti_eqep_count_write()
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| D | Kconfig | 3 # Counter devices
8 select COUNTER
21 menuconfig COUNTER config
22 tristate "Counter support"
24 This enables counter device support through the Generic Counter
26 one or more of the counter device drivers below.
28 if COUNTER
38 encoder counter/interface device family (104-QUAD-8, 104-QUAD-4).
40 A counter's respective error flag may be cleared by performing a write
42 counters may be set either directly or via the counter's preset
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| D | stm32-lptimer-cnt.c | 3 * STM32 Low-Power Timer Encoder and Counter driver
14 #include <linux/counter.h>
100 /* Setup LP timer encoder/counter and polarity, without prescaler */ in stm32_lptim_setup()
140 static int stm32_lptim_cnt_read(struct counter_device *counter, in stm32_lptim_cnt_read() argument
143 struct stm32_lptim_cnt *const priv = counter_priv(counter); in stm32_lptim_cnt_read()
156 static int stm32_lptim_cnt_function_read(struct counter_device *counter, in stm32_lptim_cnt_function_read() argument
160 struct stm32_lptim_cnt *const priv = counter_priv(counter); in stm32_lptim_cnt_function_read()
175 static int stm32_lptim_cnt_function_write(struct counter_device *counter, in stm32_lptim_cnt_function_write() argument
179 struct stm32_lptim_cnt *const priv = counter_priv(counter); in stm32_lptim_cnt_function_write()
198 static int stm32_lptim_cnt_enable_read(struct counter_device *counter, in stm32_lptim_cnt_enable_read() argument
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| /Linux-v6.6/drivers/net/ethernet/marvell/prestera/ |
| D | prestera_counter.c | 50 static void prestera_counter_lock(struct prestera_counter *counter) in prestera_counter_lock() argument
52 mutex_lock(&counter->mtx); in prestera_counter_lock()
55 static void prestera_counter_unlock(struct prestera_counter *counter) in prestera_counter_unlock() argument
57 mutex_unlock(&counter->mtx); in prestera_counter_unlock()
89 prestera_counter_block_lookup_not_full(struct prestera_counter *counter, in prestera_counter_block_lookup_not_full() argument
94 prestera_counter_lock(counter); in prestera_counter_block_lookup_not_full()
95 for (i = 0; i < counter->block_list_len; i++) { in prestera_counter_block_lookup_not_full()
96 if (counter->block_list[i] && in prestera_counter_block_lookup_not_full()
97 counter->block_list[i]->client == client && in prestera_counter_block_lookup_not_full()
98 !counter->block_list[i]->full && in prestera_counter_block_lookup_not_full()
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| /Linux-v6.6/tools/testing/selftests/netfilter/ |
| D | nft_meta.sh | 30 counter iifcount {}
31 counter iifnamecount {}
32 counter iifgroupcount {}
33 counter iiftypecount {}
34 counter infproto4count {}
35 counter il4protocounter {}
36 counter imarkcounter {}
37 counter icpu0counter {}
38 counter ilastyearcounter {}
39 counter icurrentyearcounter {}
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| /Linux-v6.6/drivers/infiniband/core/ |
| D | counters.c | 37 * Return 0 on success. If counter mode wasn't changed then it is considered
78 static void auto_mode_init_counter(struct rdma_counter *counter, in auto_mode_init_counter() argument
82 struct auto_mode_param *param = &counter->mode.param; in auto_mode_init_counter()
84 counter->mode.mode = RDMA_COUNTER_MODE_AUTO; in auto_mode_init_counter()
85 counter->mode.mask = new_mask; in auto_mode_init_counter()
91 static int __rdma_counter_bind_qp(struct rdma_counter *counter, in __rdma_counter_bind_qp() argument
96 if (qp->counter) in __rdma_counter_bind_qp()
102 mutex_lock(&counter->lock); in __rdma_counter_bind_qp()
103 ret = qp->device->ops.counter_bind_qp(counter, qp); in __rdma_counter_bind_qp()
104 mutex_unlock(&counter->lock); in __rdma_counter_bind_qp()
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| /Linux-v6.6/Documentation/ABI/testing/ |
| D | sysfs-bus-counter | 1 What: /sys/bus/counter/devices/counterX/cascade_counts_enable
5 Indicates the cascading of Counts on Counter X.
9 What: /sys/bus/counter/devices/counterX/external_input_phase_clock_select
14 Counter X.
24 What: /sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
31 What: /sys/bus/counter/devices/counterX/countY/count
37 What: /sys/bus/counter/devices/counterX/countY/capture
43 What: /sys/bus/counter/devices/counterX/countY/ceiling
48 respective counter.
50 What: /sys/bus/counter/devices/counterX/countY/floor
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| /Linux-v6.6/drivers/comedi/drivers/ |
| D | ni_tio.c | 22 * originally based on the counter code from ni_660x.c and
145 * @counter: struct ni_gpct counter.
149 void ni_tio_write(struct ni_gpct *counter, unsigned int value, in ni_tio_write() argument
153 counter->counter_dev->write(counter, value, reg); in ni_tio_write()
159 * @counter: struct ni_gpct counter.
162 unsigned int ni_tio_read(struct ni_gpct *counter, enum ni_gpct_register reg) in ni_tio_read() argument
165 return counter->counter_dev->read(counter, reg); in ni_tio_read()
170 static void ni_tio_reset_count_and_disarm(struct ni_gpct *counter) in ni_tio_reset_count_and_disarm() argument
172 unsigned int cidx = counter->counter_index; in ni_tio_reset_count_and_disarm()
174 ni_tio_write(counter, GI_RESET(cidx), NITIO_RESET_REG(cidx)); in ni_tio_reset_count_and_disarm()
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| D | ni_tiocmd.c | 38 static void ni_tio_configure_dma(struct ni_gpct *counter, in ni_tio_configure_dma() argument
41 struct ni_gpct_device *counter_dev = counter->counter_dev; in ni_tio_configure_dma()
42 unsigned int cidx = counter->counter_index; in ni_tio_configure_dma()
55 ni_tio_set_bits(counter, NITIO_INPUT_SEL_REG(cidx), mask, bits); in ni_tio_configure_dma()
69 ni_tio_set_bits(counter, NITIO_DMA_CFG_REG(cidx), mask, bits); in ni_tio_configure_dma()
78 struct ni_gpct *counter = s->private; in ni_tio_input_inttrig() local
86 spin_lock_irqsave(&counter->lock, flags); in ni_tio_input_inttrig()
87 if (counter->mite_chan) in ni_tio_input_inttrig()
88 mite_dma_arm(counter->mite_chan); in ni_tio_input_inttrig()
91 spin_unlock_irqrestore(&counter->lock, flags); in ni_tio_input_inttrig()
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| D | comedi_8254.c | 4 * Generic 8254 timer/counter support
15 * Description: Generic 8254 timer/counter support
53 * Writes an initial value to a counter.
58 * NOTE: The counter does not stop when it reaches zero. In Mode 0, 1, 4,
59 * and 5 the counter "wraps around" to the highest count, either 0xffff
61 * Modes 2 and 3 are periodic; the counter reloads itself with the initial
65 * Reads the current value from a counter.
68 * Reads the status of a counter.
78 * Calculates the divisor value needed for a single counter to generate
99 * Internally flags a counter as "busy". This is done to protect the
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| /Linux-v6.6/Documentation/driver-api/ |
| D | generic-counter.rst | 4 Generic Counter Interface
10 Counter devices are prevalent among a diverse spectrum of industries.
13 resolve the issue of duplicate code found among existing counter device
14 drivers by introducing a generic counter interface for consumption. The
15 Generic Counter interface enables drivers to support and expose a common
16 set of components and functionality present in counter devices.
21 Counter devices can vary greatly in design, but regardless of whether
23 counter devices consist of a core set of components. This core set of
24 components, shared by all counter devices, is what forms the essence of
25 the Generic Counter interface.
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| /Linux-v6.6/mm/ |
| D | page_counter.c | 45 * page_counter_cancel - take pages out of the local counter
46 * @counter: counter
49 void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages) in page_counter_cancel() argument
53 new = atomic_long_sub_return(nr_pages, &counter->usage); in page_counter_cancel()
58 atomic_long_set(&counter->usage, new); in page_counter_cancel()
60 propagate_protected_usage(counter, new); in page_counter_cancel()
65 * @counter: counter
68 * NOTE: This does not consider any configured counter limits.
70 void page_counter_charge(struct page_counter *counter, unsigned long nr_pages) in page_counter_charge() argument
74 for (c = counter; c; c = c->parent) { in page_counter_charge()
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| /Linux-v6.6/drivers/net/ethernet/mellanox/mlx5/core/ |
| D | fs_counters.c | 83 * dump (access to struct mlx5_fc) after a counter is destroyed.
85 * access to counter list:
94 * - add a counter to lockless dellist
114 struct mlx5_fc *counter; in mlx5_fc_counters_lookup_next() local
120 counter, tmp, next_id) { in mlx5_fc_counters_lookup_next()
121 if (!list_empty(&counter->list)) in mlx5_fc_counters_lookup_next()
126 return counter ? &counter->list : &fc_stats->counters; in mlx5_fc_counters_lookup_next()
130 struct mlx5_fc *counter) in mlx5_fc_stats_insert() argument
132 struct list_head *next = mlx5_fc_counters_lookup_next(dev, counter->id); in mlx5_fc_stats_insert()
134 list_add_tail(&counter->list, next); in mlx5_fc_stats_insert()
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| /Linux-v6.6/arch/arm/include/asm/ |
| D | atomic.h | 25 #define arch_atomic_read(v) READ_ONCE((v)->counter)
26 #define arch_atomic_set(v,i) WRITE_ONCE(((v)->counter), (i))
42 prefetchw(&v->counter); \
49 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
50 : "r" (&v->counter), "Ir" (i) \
60 prefetchw(&v->counter); \
68 : "=&r" (result), "=&r" (tmp), "+Qo" (v->counter) \
69 : "r" (&v->counter), "Ir" (i) \
81 prefetchw(&v->counter); \
89 : "=&r" (result), "=&r" (val), "=&r" (tmp), "+Qo" (v->counter) \
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| /Linux-v6.6/tools/perf/ |
| D | design.txt | 12 The Linux Performance Counter subsystem provides an abstraction of these
13 hardware capabilities. It provides per task and per CPU counters, counter
19 There's one file descriptor per virtual counter used.
29 VFS system calls: read() can be used to read the counter, fcntl()
35 When creating a new counter fd, 'perf_event_attr' is:
40 * specific (raw) counter configuration data, if unset, the next
71 The 'config' field specifies what the counter should count. It
78 If 'raw_type' is 1, then the counter will count a hardware event
82 If 'raw_type' is 0, then the 'type' field says what kind of counter
91 A counter of PERF_TYPE_HARDWARE will count the hardware event
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| /Linux-v6.6/include/linux/ |
| D | counter.h | 3 * Counter interface
17 #include <uapi/linux/counter.h>
39 * struct counter_comp - Counter component node
40 * @type: Counter component data type
157 int (*action_read)(struct counter_device *counter,
161 int (*device_u8_read)(struct counter_device *counter, u8 *val);
162 int (*count_u8_read)(struct counter_device *counter,
164 int (*signal_u8_read)(struct counter_device *counter,
166 int (*device_u32_read)(struct counter_device *counter,
168 int (*count_u32_read)(struct counter_device *counter,
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| D | page_counter.h | 47 static inline void page_counter_init(struct page_counter *counter, in page_counter_init() argument
50 atomic_long_set(&counter->usage, 0); in page_counter_init()
51 counter->max = PAGE_COUNTER_MAX; in page_counter_init()
52 counter->parent = parent; in page_counter_init()
55 static inline unsigned long page_counter_read(struct page_counter *counter) in page_counter_read() argument
57 return atomic_long_read(&counter->usage); in page_counter_read()
60 void page_counter_cancel(struct page_counter *counter, unsigned long nr_pages);
61 void page_counter_charge(struct page_counter *counter, unsigned long nr_pages);
62 bool page_counter_try_charge(struct page_counter *counter,
65 void page_counter_uncharge(struct page_counter *counter, unsigned long nr_pages);
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