| /Linux-v5.4/drivers/cpufreq/ |
| D | tegra20-cpufreq.c | 42 struct tegra20_cpufreq *cpufreq = cpufreq_get_driver_data(); in tegra_get_intermediate() local
43 unsigned int ifreq = clk_get_rate(cpufreq->pll_p_clk) / 1000; in tegra_get_intermediate()
59 struct tegra20_cpufreq *cpufreq = cpufreq_get_driver_data(); in tegra_target_intermediate() local
72 clk_prepare_enable(cpufreq->pll_x_clk); in tegra_target_intermediate()
74 ret = clk_set_parent(cpufreq->cpu_clk, cpufreq->pll_p_clk); in tegra_target_intermediate()
76 clk_disable_unprepare(cpufreq->pll_x_clk); in tegra_target_intermediate()
78 cpufreq->pll_x_prepared = true; in tegra_target_intermediate()
85 struct tegra20_cpufreq *cpufreq = cpufreq_get_driver_data(); in tegra_target() local
87 unsigned int ifreq = clk_get_rate(cpufreq->pll_p_clk) / 1000; in tegra_target()
95 return clk_set_parent(cpufreq->cpu_clk, cpufreq->pll_p_clk); in tegra_target()
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| D | Makefile | 3 obj-$(CONFIG_CPU_FREQ) += cpufreq.o freq_table.o
17 obj-$(CONFIG_CPUFREQ_DT) += cpufreq-dt.o
18 obj-$(CONFIG_CPUFREQ_DT_PLATDEV) += cpufreq-dt-platdev.o
27 obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o
29 obj-$(CONFIG_X86_PCC_CPUFREQ) += pcc-cpufreq.o
43 obj-$(CONFIG_X86_CPUFREQ_NFORCE2) += cpufreq-nforce2.o
46 obj-$(CONFIG_X86_SFI_CPUFREQ) += sfi-cpufreq.o
52 obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ) += armada-37xx-cpufreq.o
53 obj-$(CONFIG_ARM_ARMADA_8K_CPUFREQ) += armada-8k-cpufreq.o
54 obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ) += brcmstb-avs-cpufreq.o
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| D | davinci-cpufreq.c | 33 static struct davinci_cpufreq cpufreq; variable
37 struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; in davinci_target()
38 struct clk *armclk = cpufreq.armclk; in davinci_target()
56 if (cpufreq.asyncclk) { in davinci_target()
57 ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate); in davinci_target()
72 struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data; in davinci_cpu_init()
85 policy->clk = cpufreq.armclk; in davinci_cpu_init()
117 cpufreq.dev = &pdev->dev; in davinci_cpufreq_probe()
119 cpufreq.armclk = clk_get(NULL, "arm"); in davinci_cpufreq_probe()
120 if (IS_ERR(cpufreq.armclk)) { in davinci_cpufreq_probe()
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| D | loongson1-cpufreq.c | 34 static struct ls1x_cpufreq *cpufreq; variable
67 clk_set_parent(policy->clk, cpufreq->osc_clk); in ls1x_cpufreq_target()
72 clk_set_rate(cpufreq->mux_clk, new_freq * 1000); in ls1x_cpufreq_target()
73 clk_set_parent(policy->clk, cpufreq->mux_clk); in ls1x_cpufreq_target()
86 pll_freq = clk_get_rate(cpufreq->pll_clk) / 1000; in ls1x_cpufreq_init()
95 if ((freq < cpufreq->min_freq) || (freq > cpufreq->max_freq)) in ls1x_cpufreq_init()
105 policy->clk = cpufreq->clk; in ls1x_cpufreq_init()
148 cpufreq = in ls1x_cpufreq_probe()
150 if (!cpufreq) in ls1x_cpufreq_probe()
153 cpufreq->dev = &pdev->dev; in ls1x_cpufreq_probe()
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| D | Kconfig | 13 clock speed, you need to either enable a dynamic cpufreq governor
77 loading your cpufreq low-level hardware driver.
78 Be aware that not all cpufreq drivers support the ondemand
89 loading your cpufreq low-level hardware driver.
90 Be aware that not all cpufreq drivers support the conservative
109 This cpufreq governor sets the frequency statically to the
120 This cpufreq governor sets the frequency statically to the
131 Enable this cpufreq governor when you either want to set the
144 tristate "'ondemand' cpufreq policy governor"
147 'ondemand' - This driver adds a dynamic cpufreq policy governor.
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| D | Kconfig.arm | 32 module will be called sun50i-cpufreq-nvmem.
99 tristate "Freescale i.MX6 cpufreq support"
104 This adds cpufreq driver support for Freescale i.MX6 series SoCs.
109 tristate "Freescale i.MX8M cpufreq support"
112 This adds cpufreq driver support for Freescale i.MX8M series SoCs,
113 based on cpufreq-dt.
154 The driver implements the cpufreq interface for this HW engine.
158 tristate "Raspberry Pi cpufreq support"
168 Internal configuration node for common cpufreq on Samsung SoC
329 use the cpufreq-dt driver on all Texas Instruments platforms that
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| /Linux-v5.4/tools/power/cpupower/ |
| D | .gitignore | 5 cpufreq-info
6 cpufreq-set
7 cpufreq-aperf
9 lib/cpufreq.lo
10 lib/cpufreq.o
17 utils/cpufreq-info.o
18 utils/cpufreq-set.o
19 utils/cpufreq-aperf.o
21 bench/cpufreq-bench
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| D | README | 16 tools and programs to the cpufreq core and drivers in the Linux kernel. This
18 the interaction to the cpufreq core, and support for both the sysfs and proc
30 /usr/lib; cpupower, cpufreq-bench_plot.sh to put in /usr/bin; and
31 cpufreq-bench to put in /usr/sbin. If you want to set up the paths
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| /Linux-v5.4/tools/power/cpupower/po/ |
| D | pt.po | 225 #: utils/cpufreq-info.c:31
230 #: utils/cpufreq-info.c:63
238 #: utils/cpufreq-info.c:151
248 #: utils/cpufreq-info.c:161
253 #: utils/cpufreq-info.c:163
258 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
262 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
266 #: utils/cpufreq-info.c:164
271 #: utils/cpufreq-info.c:177
276 #: utils/cpufreq-info.c:178
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| D | it.po | 227 #: utils/cpufreq-info.c:31
232 #: utils/cpufreq-info.c:63
239 #: utils/cpufreq-info.c:151
249 #: utils/cpufreq-info.c:161
254 #: utils/cpufreq-info.c:163
259 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
263 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
267 #: utils/cpufreq-info.c:164
272 #: utils/cpufreq-info.c:177
277 #: utils/cpufreq-info.c:178
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| D | cs.po | 232 #: utils/cpufreq-info.c:31
237 #: utils/cpufreq-info.c:63
244 #: utils/cpufreq-info.c:151
254 #: utils/cpufreq-info.c:161
259 #: utils/cpufreq-info.c:163
264 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
268 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
272 #: utils/cpufreq-info.c:164
277 #: utils/cpufreq-info.c:177
282 #: utils/cpufreq-info.c:178
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| D | fr.po | 227 #: utils/cpufreq-info.c:31
232 #: utils/cpufreq-info.c:63
239 #: utils/cpufreq-info.c:151
249 #: utils/cpufreq-info.c:161
254 #: utils/cpufreq-info.c:163
259 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
263 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
267 #: utils/cpufreq-info.c:164
272 #: utils/cpufreq-info.c:177
277 #: utils/cpufreq-info.c:178
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| D | de.po | 239 #: utils/cpufreq-info.c:31
246 #: utils/cpufreq-info.c:63
252 #: utils/cpufreq-info.c:151
263 #: utils/cpufreq-info.c:161
268 #: utils/cpufreq-info.c:163
273 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
277 #: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164
281 #: utils/cpufreq-info.c:164
286 #: utils/cpufreq-info.c:177
291 #: utils/cpufreq-info.c:178
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| /Linux-v5.4/tools/power/cpupower/bench/ |
| D | cpufreq-bench_script.sh | 30 echo $up_threshold >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
31 echo $sampling_rate >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
32 up_threshold_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold)
33 sampling_rate_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate)
48 …cpufreq-bench -o /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}
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| D | README-BENCH | 1 This is cpufreq-bench, a microbenchmark for the cpufreq framework.
10 - (Stress) Testing whether a cpufreq low level driver or governor works
12 - Identify cpufreq related performance regressions between kernels
27 cpufreq-bench helps to test the condition of a given cpufreq governor.
80 trigger of the cpufreq-bench, you will see no performance loss (compare with
107 cpufreq-bench Command Usage
115 -g, --governor=<governor> cpufreq governor to test
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| /Linux-v5.4/Documentation/cpu-freq/ |
| D | cpufreq-stats.txt | 15 3. Configuring cpufreq-stats
20 cpufreq-stats is a driver that provides CPU frequency statistics for each CPU.
22 interface (when configured) will appear in a separate directory under cpufreq
23 in /sysfs (<sysfs root>/devices/system/cpu/cpuX/cpufreq/stats/) for each CPU.
32 cpufreq stats provides following statistics (explained in detail below).
43 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # ls -l
66 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat time_in_state
81 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat total_trans
90 which the driver has provided the frequency table initially to the cpufreq core
99 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat trans_table
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| D | index.txt | 27 cpu-drivers.txt - How to implement a new cpufreq processor driver.
29 cpufreq-nforce2.txt - nVidia nForce2 platform specific file.
31 cpufreq-stats.txt - General description of sysfs cpufreq stats.
35 pcc-cpufreq.txt - PCC cpufreq driver specific file.
47 * ftp://ftp.linux.org.uk/pub/linux/cpufreq/
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| D | core.txt | 30 The CPUFreq core code is located in drivers/cpufreq/cpufreq.c. This
31 cpufreq code offers a standardized interface for the CPUFreq
41 Reference counting of the cpufreq policies is done by cpufreq_cpu_get
42 and cpufreq_cpu_put, which make sure that the cpufreq driver is
44 cpufreq_put_cpu is called. That also ensures that the respective cpufreq
86 flags - flags of the cpufreq driver
95 into a format readily providable to cpufreq.
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| D | cpu-drivers.txt | 40 add cpufreq support for this CPU / chipset? Great. Here are some hints
65 .flags - Hints for the cpufreq core.
67 .driver_data - cpufreq driver specific data.
108 cpufreq driver registers itself, the per-policy initialization function
109 cpufreq_driver.init is called if no cpufreq policy existed for the CPU.
166 Most cpufreq drivers or even most cpu frequency scaling algorithms
171 Some cpufreq capable processors switch the frequency between certain
226 the reference implementation in drivers/cpufreq/longrun.c
250 As most cpufreq processors only allow for being set to a few specific
259 particular order, but if they are cpufreq core will do DVFS a bit
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| /Linux-v5.4/tools/testing/selftests/cpufreq/ |
| D | main.sh | 5 source cpufreq.sh
64 if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
65 echo $msg cpufreq directory not available in sysfs >&2
183 dmesg | grep cpufreq >> $1.dmesg_cpufreq.txt
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| D | cpu.sh | 13 source cpufreq.sh
79 if [ -d $CPUROOT/$cpu/cpufreq ]; then
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| D | governor.sh | 14 source cpufreq.sh
79 echo $2 > $CPUROOT/$1/cpufreq/scaling_governor
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| /Linux-v5.4/Documentation/driver-api/thermal/ |
| D | cpu-cooling-api.rst | 21 1.1 cpufreq registration/unregistration APIs
29 This interface function registers the cpufreq cooling device with the name
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
41 This interface function registers the cpufreq cooling device with
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
44 instances of cpufreq cooling devices.
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
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| /Linux-v5.4/Documentation/ABI/testing/ |
| D | sysfs-devices-system-cpu | 235 What: /sys/devices/system/cpu/cpu#/cpufreq/*
250 What: /sys/devices/system/cpu/cpu#/cpufreq/freqdomain_cpus
257 That information may be hidden from the cpufreq core and the
260 power/performance results for platforms using acpi-cpufreq.
262 This file is only present if the acpi-cpufreq driver is in use.
285 What: /sys/devices/system/cpu/cpufreq/boost
294 Documentation/admin-guide/pm/cpufreq.rst
396 What: /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats
397 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/turbo_stat
398 /sys/devices/system/cpu/cpuX/cpufreq/throttle_stats/sub_turbo_stat
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| /Linux-v5.4/Documentation/devicetree/bindings/cpufreq/ |
| D | cpufreq-spear.txt | 1 SPEAr cpufreq driver
4 SPEAr SoC cpufreq driver for CPU frequency scaling.
|
