| /kernel/linux/linux-6.6/tools/perf/util/ |
| D | cpumap.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
10 /** Identify where counts are aggregated, -1 implies not to aggregate. */
14 /** The numa node X as read from /sys/devices/system/node/nodeX. */
17 * The socket number as read from
18 * /sys/devices/system/cpu/cpuX/topology/physical_package_id.
21 /** The die id as read from /sys/devices/system/cpu/cpuX/topology/die_id. */
23 /** The cache level as read from /sys/devices/system/cpu/cpuX/cache/indexY/level */
26 * The cache instance ID, which is the first CPU in the
27 * /sys/devices/system/cpu/cpuX/cache/indexY/shared_cpu_list
30 /** The core id as read from /sys/devices/system/cpu/cpuX/topology/core_id. */
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| /kernel/linux/linux-6.6/tools/virtio/virtio-trace/ |
| D | trace-agent.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Guest agent for virtio-trace
15 #include "trace-agent.h"
23 #define READ_PATH_FMT "%s/per_cpu/cpu%d/trace_pipe_raw"
24 #define WRITE_PATH_FMT "/dev/virtio-ports/trace-path-cpu%d"
25 #define CTL_PATH "/dev/virtio-ports/agent-ctl-path"
35 pr_err("Could not read cpus\n"); in get_total_cpus()
59 s->pipe_size = PIPE_INIT; in agent_info_new()
60 s->use_stdout = false; in agent_info_new()
61 s->cpus = get_total_cpus(); in agent_info_new()
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| D | trace-agent-rw.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Read/write thread of a guest agent for virtio-trace
16 #include "trace-agent.h"
30 rw_ti->cpu_num = -1; in rw_thread_info_new()
31 rw_ti->in_fd = -1; in rw_thread_info_new()
32 rw_ti->out_fd = -1; in rw_thread_info_new()
33 rw_ti->read_pipe = -1; in rw_thread_info_new()
34 rw_ti->write_pipe = -1; in rw_thread_info_new()
35 rw_ti->pipe_size = PIPE_INIT; in rw_thread_info_new()
40 void *rw_thread_init(int cpu, const char *in_path, const char *out_path, in rw_thread_init() argument
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| /kernel/linux/linux-5.10/tools/virtio/virtio-trace/ |
| D | trace-agent.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Guest agent for virtio-trace
15 #include "trace-agent.h"
22 "/sys/kernel/debug/tracing/per_cpu/cpu%d/trace_pipe_raw"
23 #define WRITE_PATH_FMT "/dev/virtio-ports/trace-path-cpu%d"
24 #define CTL_PATH "/dev/virtio-ports/agent-ctl-path"
34 pr_err("Could not read cpus\n"); in get_total_cpus()
58 s->pipe_size = PIPE_INIT; in agent_info_new()
59 s->use_stdout = false; in agent_info_new()
60 s->cpus = get_total_cpus(); in agent_info_new()
[all …]
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| D | trace-agent-rw.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Read/write thread of a guest agent for virtio-trace
16 #include "trace-agent.h"
30 rw_ti->cpu_num = -1; in rw_thread_info_new()
31 rw_ti->in_fd = -1; in rw_thread_info_new()
32 rw_ti->out_fd = -1; in rw_thread_info_new()
33 rw_ti->read_pipe = -1; in rw_thread_info_new()
34 rw_ti->write_pipe = -1; in rw_thread_info_new()
35 rw_ti->pipe_size = PIPE_INIT; in rw_thread_info_new()
40 void *rw_thread_init(int cpu, const char *in_path, const char *out_path, in rw_thread_init() argument
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| /kernel/linux/linux-5.10/include/uapi/linux/ |
| D | isst_if.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
16 * struct isst_if_platform_info - Define platform information
25 * @mmio_supported: Support of mmio interface for core-power feature
40 * struct isst_if_cpu_map - CPU mapping between logical and physical CPU
41 * @logical_cpu: Linux logical CPU number
42 * @physical_cpu: PUNIT CPU number
44 * Used to convert from Linux logical CPU to PUNIT CPU numbering scheme.
45 * The PUNIT CPU number is different than APIC ID based CPU numbering.
53 * struct isst_if_cpu_maps - structure for CPU map IOCTL
54 * @cmd_count: Number of CPU mapping command in cpu_map[]
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| /kernel/linux/linux-6.6/tools/perf/pmu-events/arch/x86/amdzen4/ |
| D | data-fabric.json | 4 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 0.",
12 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 1.",
20 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 2.",
28 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 3.",
36 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 4.",
44 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 5.",
52 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 6.",
60 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 7.",
68 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 8.",
76 … "PublicDescription": "Read data beats (64 bytes) for local processor at Coherent Station (CS) 9.",
[all …]
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| /kernel/linux/linux-5.10/Documentation/core-api/ |
| D | local_ops.rst | 29 Local atomic operations are meant to provide fast and highly reentrant per CPU
34 Having fast per CPU atomic counters is interesting in many cases: it does not
40 CPU which owns the data. Therefore, care must taken to make sure that only one
41 CPU writes to the ``local_t`` data. This is done by using per cpu data and
43 however permitted to read ``local_t`` data from any CPU: it will then appear to
44 be written out of order wrt other memory writes by the owner CPU.
54 ``asm-generic/local.h`` in your architecture's ``local.h`` is sufficient.
66 * Variables touched by local ops must be per cpu variables.
67 * *Only* the CPU owner of these variables must write to them.
68 * This CPU can use local ops from any context (process, irq, softirq, nmi, ...)
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| /kernel/linux/linux-6.6/Documentation/core-api/ |
| D | local_ops.rst | 29 Local atomic operations are meant to provide fast and highly reentrant per CPU
34 Having fast per CPU atomic counters is interesting in many cases: it does not
40 CPU which owns the data. Therefore, care must taken to make sure that only one
41 CPU writes to the ``local_t`` data. This is done by using per cpu data and
43 however permitted to read ``local_t`` data from any CPU: it will then appear to
44 be written out of order wrt other memory writes by the owner CPU.
54 ``asm-generic/local.h`` in your architecture's ``local.h`` is sufficient.
66 * Variables touched by local ops must be per cpu variables.
67 * *Only* the CPU owner of these variables must write to them.
68 * This CPU can use local ops from any context (process, irq, softirq, nmi, ...)
[all …]
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| /kernel/linux/linux-6.6/drivers/infiniband/ulp/rtrs/ |
| D | rtrs-clt-stats.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
12 #include "rtrs-clt.h"
16 struct rtrs_clt_path *clt_path = to_clt_path(con->c.path); in rtrs_clt_update_wc_stats()
17 struct rtrs_clt_stats *stats = clt_path->stats; in rtrs_clt_update_wc_stats()
19 int cpu; in rtrs_clt_update_wc_stats() local
21 cpu = raw_smp_processor_id(); in rtrs_clt_update_wc_stats()
22 s = get_cpu_ptr(stats->pcpu_stats); in rtrs_clt_update_wc_stats()
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| D | rtrs-srv-stats.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
12 #include "rtrs-srv.h"
17 int cpu; in rtrs_srv_reset_rdma_stats() local
20 for_each_possible_cpu(cpu) { in rtrs_srv_reset_rdma_stats()
21 r = per_cpu_ptr(stats->rdma_stats, cpu); in rtrs_srv_reset_rdma_stats()
28 return -EINVAL; in rtrs_srv_reset_rdma_stats()
33 int cpu; in rtrs_srv_stats_rdma_to_str() local
[all …]
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| /kernel/linux/linux-5.10/drivers/infiniband/ulp/rtrs/ |
| D | rtrs-clt-stats.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
12 #include "rtrs-clt.h"
16 struct rtrs_clt_sess *sess = to_clt_sess(con->c.sess); in rtrs_clt_update_wc_stats()
17 struct rtrs_clt_stats *stats = sess->stats; in rtrs_clt_update_wc_stats()
19 int cpu; in rtrs_clt_update_wc_stats() local
21 cpu = raw_smp_processor_id(); in rtrs_clt_update_wc_stats()
22 s = this_cpu_ptr(stats->pcpu_stats); in rtrs_clt_update_wc_stats()
[all …]
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| /kernel/linux/linux-6.6/drivers/hwtracing/coresight/ |
| D | coresight-trace-id.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
13 * With multi cpu systems, and more additional trace sources a scalable
19 * In order to ensure that a consistent cpu / ID matching is maintained
20 * throughout a perf cs_etm event session - a session in progress flag will
22 * complete. This allows the same CPU to be re-allocated its prior ID.
28 * API permits multiple maps to be maintained - for large systems where
55 * @pend_rel_ids: CPU IDs that have been released by the trace source but not
56 * yet marked as available, to allow re-allocation to the same
57 * CPU during a perf session.
67 * Read and optionally allocate a CoreSight trace ID and associate with a CPU.
[all …]
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| /kernel/linux/linux-6.6/tools/power/cpupower/utils/helpers/ |
| D | sysfs.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
24 if (fd == -1) in sysfs_read_file()
27 numread = read(fd, buf, buflen - 1); in sysfs_read_file()
40 * Detect whether a CPU is online
43 * 1 -> if CPU is online
44 * 0 -> if CPU is offline
47 int sysfs_is_cpu_online(unsigned int cpu) in sysfs_is_cpu_online() argument
57 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u", cpu); in sysfs_is_cpu_online()
64 * -> cpuX directory exists, but not cpuX/online file in sysfs_is_cpu_online()
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| /kernel/linux/linux-5.10/tools/power/cpupower/utils/helpers/ |
| D | sysfs.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
24 if (fd == -1) in sysfs_read_file()
27 numread = read(fd, buf, buflen - 1); in sysfs_read_file()
40 * Detect whether a CPU is online
43 * 1 -> if CPU is online
44 * 0 -> if CPU is offline
47 int sysfs_is_cpu_online(unsigned int cpu) in sysfs_is_cpu_online() argument
57 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u", cpu); in sysfs_is_cpu_online()
64 * -> cpuX directory exists, but not cpuX/online file in sysfs_is_cpu_online()
[all …]
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| /kernel/linux/linux-5.10/arch/arm/mach-zynq/ |
| D | slcr.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2011-2013 Xilinx Inc.
19 #define SLCR_A9_CPU_RST_CTRL_OFFSET 0x244 /* CPU Software Reset Control */
34 * zynq_slcr_write - Write to a register in SLCR block
47 * zynq_slcr_read - Read a register in SLCR block
49 * @val: Pointer to value to be read from SLCR
60 * zynq_slcr_unlock - Unlock SLCR registers
72 * zynq_slcr_get_device_id - Read device code id
88 * zynq_slcr_system_restart - Restart the entire system.
104 * the FSBL not loading the bitstream after soft-reboot in zynq_slcr_system_restart()
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| /kernel/linux/linux-6.6/arch/arm/mach-zynq/ |
| D | slcr.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2011-2013 Xilinx Inc.
19 #define SLCR_A9_CPU_RST_CTRL_OFFSET 0x244 /* CPU Software Reset Control */
34 * zynq_slcr_write - Write to a register in SLCR block
47 * zynq_slcr_read - Read a register in SLCR block
49 * @val: Pointer to value to be read from SLCR
60 * zynq_slcr_unlock - Unlock SLCR registers
72 * zynq_slcr_get_device_id - Read device code id
88 * zynq_slcr_system_restart - Restart the entire system.
104 * the FSBL not loading the bitstream after soft-reboot in zynq_slcr_system_restart()
[all …]
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| /kernel/linux/linux-5.10/tools/memory-model/Documentation/ |
| D | explanation.txt | 1 Explanation of the Linux-Kernel Memory Consistency Model
15 7. THE PROGRAM ORDER RELATION: po AND po-loc
18 10. THE READS-FROM RELATION: rf, rfi, and rfe
20 12. THE FROM-READS RELATION: fr, fri, and fre
22 14. PROPAGATION ORDER RELATION: cumul-fence
28 20. THE HAPPENS-BEFORE RELATION: hb
29 21. THE PROPAGATES-BEFORE RELATION: pb
30 22. RCU RELATIONS: rcu-link, rcu-gp, rcu-rscsi, rcu-order, rcu-fence, and rb
38 ------------
40 The Linux-kernel memory consistency model (LKMM) is rather complex and
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| /kernel/linux/linux-6.6/include/uapi/linux/ |
| D | isst_if.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
16 * struct isst_if_platform_info - Define platform information
25 * @mmio_supported: Support of mmio interface for core-power feature
40 * struct isst_if_cpu_map - CPU mapping between logical and physical CPU
41 * @logical_cpu: Linux logical CPU number
42 * @physical_cpu: PUNIT CPU number
44 * Used to convert from Linux logical CPU to PUNIT CPU numbering scheme.
45 * The PUNIT CPU number is different than APIC ID based CPU numbering.
53 * struct isst_if_cpu_maps - structure for CPU map IOCTL
54 * @cmd_count: Number of CPU mapping command in cpu_map[]
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| /kernel/linux/linux-5.10/kernel/trace/ |
| D | ring_buffer.c | 1 // SPDX-License-Identifier: GPL-2.0
26 #include <linux/cpu.h>
57 * allocated for each CPU. A writer may only write to a buffer that is
58 * associated with the CPU it is currently executing on. A reader may read
59 * from any per cpu buffer.
61 * The reader is special. For each per cpu buffer, the reader has its own
62 * reader page. When a reader has read the entire reader page, this reader
71 * +------+
74 * +------+ +---+ +---+ +---+
75 * | |-->| |-->| |
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| /kernel/linux/linux-6.6/tools/power/cpupower/lib/ |
| D | cpuidle.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
22 * For example the functionality to disable c-states was introduced in later
29 unsigned int cpuidle_state_file_exists(unsigned int cpu, in cpuidle_state_file_exists() argument
37 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", in cpuidle_state_file_exists()
38 cpu, idlestate, fname); in cpuidle_state_file_exists()
45 * helper function to read file from /sys into given buffer
51 unsigned int cpuidle_state_read_file(unsigned int cpu, in cpuidle_state_read_file() argument
60 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", in cpuidle_state_read_file()
61 cpu, idlestate, fname); in cpuidle_state_read_file()
[all …]
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| /kernel/linux/linux-5.10/tools/power/cpupower/lib/ |
| D | cpuidle.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
22 * For example the functionality to disable c-states was introduced in later
29 unsigned int cpuidle_state_file_exists(unsigned int cpu, in cpuidle_state_file_exists() argument
37 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", in cpuidle_state_file_exists()
38 cpu, idlestate, fname); in cpuidle_state_file_exists()
45 * helper function to read file from /sys into given buffer
51 unsigned int cpuidle_state_read_file(unsigned int cpu, in cpuidle_state_read_file() argument
60 snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", in cpuidle_state_read_file()
61 cpu, idlestate, fname); in cpuidle_state_read_file()
[all …]
|
| /kernel/linux/linux-6.6/tools/memory-model/Documentation/ |
| D | explanation.txt | 1 Explanation of the Linux-Kernel Memory Consistency Model
15 7. THE PROGRAM ORDER RELATION: po AND po-loc
18 10. THE READS-FROM RELATION: rf, rfi, and rfe
20 12. THE FROM-READS RELATION: fr, fri, and fre
22 14. PROPAGATION ORDER RELATION: cumul-fence
28 20. THE HAPPENS-BEFORE RELATION: hb
29 21. THE PROPAGATES-BEFORE RELATION: pb
30 22. RCU RELATIONS: rcu-link, rcu-gp, rcu-rscsi, rcu-order, rcu-fence, and rb
31 23. SRCU READ-SIDE CRITICAL SECTIONS
39 ------------
[all …]
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| /kernel/linux/linux-6.6/arch/mips/include/asm/sn/sn0/ |
| D | hubpi.h | 8 * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
28 #define PI_CPU_PROTECT 0x000000 /* CPU Protection */
29 #define PI_PROT_OVERRD 0x000008 /* Clear CPU Protection bit */
32 #define PI_CPU_NUM 0x000020 /* CPU Number ID */
57 #define PI_CPU_PRESENT_A 0x000040 /* CPU Present A */
58 #define PI_CPU_PRESENT_B 0x000048 /* CPU Present B */
59 #define PI_CPU_ENABLE_A 0x000050 /* CPU Enable A */
60 #define PI_CPU_ENABLE_B 0x000058 /* CPU Enable B */
63 #define PI_NMI_A 0x000070 /* NMI to CPU A */
64 #define PI_NMI_B 0x000078 /* NMI to CPU B */
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| /kernel/linux/linux-5.10/arch/mips/include/asm/sn/sn0/ |
| D | hubpi.h | 8 * Copyright (C) 1992 - 1997, 1999 Silicon Graphics, Inc.
28 #define PI_CPU_PROTECT 0x000000 /* CPU Protection */
29 #define PI_PROT_OVERRD 0x000008 /* Clear CPU Protection bit */
32 #define PI_CPU_NUM 0x000020 /* CPU Number ID */
57 #define PI_CPU_PRESENT_A 0x000040 /* CPU Present A */
58 #define PI_CPU_PRESENT_B 0x000048 /* CPU Present B */
59 #define PI_CPU_ENABLE_A 0x000050 /* CPU Enable A */
60 #define PI_CPU_ENABLE_B 0x000058 /* CPU Enable B */
63 #define PI_NMI_A 0x000070 /* NMI to CPU A */
64 #define PI_NMI_B 0x000078 /* NMI to CPU B */
[all …]
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