| /kernel/linux/linux-5.10/Documentation/timers/ |
| D | highres.rst | 2 High resolution timers and dynamic ticks design notes
8 https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
11 http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
23 - hrtimer base infrastructure
24 - timeofday and clock source management
25 - clock event management
26 - high resolution timer functionality
27 - dynamic ticks
31 ---------------------------
40 - time ordered enqueueing into a rb-tree
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| /kernel/linux/linux-6.6/Documentation/timers/ |
| D | highres.rst | 2 High resolution timers and dynamic ticks design notes
8 https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
11 http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
23 - hrtimer base infrastructure
24 - timeofday and clock source management
25 - clock event management
26 - high resolution timer functionality
27 - dynamic ticks
31 ---------------------------
40 - time ordered enqueueing into a rb-tree
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| /kernel/linux/linux-5.10/Documentation/driver-api/i3c/ |
| D | protocol.rst | 1 .. SPDX-License-Identifier: GPL-2.0
17 https://resources.mipi.org/mipi-i3c-v1-download).
22 The I3C (pronounced 'eye-three-see') is a MIPI standardized protocol designed
25 while remaining power-efficient.
42 I3C is a multi-master protocol, so there might be several masters on a bus,
46 Each device on the I3C bus has to be assigned a dynamic address to be able to
51 In addition to these per-device addresses, the protocol defines a broadcast
54 Once a dynamic address has been assigned to a device, this address will be used
56 assigned a dynamic address, the device should still process broadcast messages.
65 The discovery mechanism is called DAA (Dynamic Address Assignment), because it
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|
| /kernel/linux/linux-6.6/Documentation/driver-api/i3c/ |
| D | protocol.rst | 1 .. SPDX-License-Identifier: GPL-2.0
17 https://resources.mipi.org/mipi-i3c-v1-download).
22 The I3C (pronounced 'eye-three-see') is a MIPI standardized protocol designed
25 while remaining power-efficient.
42 I3C is a multi-master protocol, so there might be several masters on a bus,
46 Each device on the I3C bus has to be assigned a dynamic address to be able to
51 In addition to these per-device addresses, the protocol defines a broadcast
54 Once a dynamic address has been assigned to a device, this address will be used
56 assigned a dynamic address, the device should still process broadcast messages.
65 The discovery mechanism is called DAA (Dynamic Address Assignment), because it
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/i3c/ |
| D | i3c.txt | 8 -------------------
10 - #address-cells - should be <3>. Read more about addresses below.
11 - #size-cells - should be <0>.
12 - compatible - name of the I3C master controller driving the I3C bus
16 The node describing an I3C bus should be named i3c-master.
19 -------------------
24 - i3c-scl-hz: frequency of the SCL signal used for I3C transfers.
27 - i2c-scl-hz: frequency of the SCL signal used for I2C transfers.
40 --------------------------------------
41 - reg: contains 3 cells
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/i3c/ |
| D | i3c.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alexandre Belloni <alexandre.belloni@bootlin.com>
11 - Miquel Raynal <miquel.raynal@bootlin.com>
20 pattern: "^i3c-master@[0-9a-f]+$"
22 "#address-cells":
27 All I3C devices are supposed to support DAA (Dynamic Address Assignment),
36 specific I3C dynamic address before the DAA takes place (so that other
37 devices on the bus can't take this dynamic address).
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| /kernel/linux/linux-5.10/arch/powerpc/kernel/ |
| D | tau_6xx.c | 1 // SPDX-License-Identifier: GPL-2.0
8 * dynamic power management to limit peak CPU temp (using ICTC)
31 #include <asm/asm-prototypes.h>
39 unsigned char high; member
46 * dynamic adjustment to minimize # of interrupts */
63 mtspr(SPRN_THRM2, THRM1_THRES(tau[cpu].high) | THRM1_V | maybe_tie); in set_thresholds()
78 tau[cpu].low -= step_size; in TAUupdate()
79 tau[cpu].high -= (step_size - window_expand); in TAUupdate()
88 if (tau[cpu].high <= 127 - step_size) { in TAUupdate()
89 tau[cpu].low += (step_size - window_expand); in TAUupdate()
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| /kernel/linux/linux-6.6/arch/powerpc/kernel/ |
| D | tau_6xx.c | 1 // SPDX-License-Identifier: GPL-2.0
8 * dynamic power management to limit peak CPU temp (using ICTC)
39 unsigned char high; member
46 * dynamic adjustment to minimize # of interrupts */
63 mtspr(SPRN_THRM2, THRM1_THRES(tau[cpu].high) | THRM1_V | maybe_tie); in set_thresholds()
78 tau[cpu].low -= step_size; in TAUupdate()
79 tau[cpu].high -= (step_size - window_expand); in TAUupdate()
88 if (tau[cpu].high <= 127 - step_size) { in TAUupdate()
89 tau[cpu].low += (step_size - window_expand); in TAUupdate()
90 tau[cpu].high += step_size; in TAUupdate()
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| /kernel/linux/linux-5.10/Documentation/driver-api/thermal/ |
| D | cpu-cooling-api.rst | 22 --------------------------------------------
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
62 CPUs. The current power is calculated as dynamic power (static power isn't
63 supported currently). This power model requires that the operating-points of
70 The dynamic power consumption of a processor depends on many factors.
73 - The time the processor spends running, consuming dynamic power, as
74 compared to the time in idle states where dynamic consumption is
76 - The voltage and frequency levels as a result of DVFS. The DVFS
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|
| /kernel/linux/linux-6.6/Documentation/driver-api/thermal/ |
| D | cpu-cooling-api.rst | 22 --------------------------------------------
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
62 CPUs. The current power is calculated as dynamic power (static power isn't
63 supported currently). This power model requires that the operating-points of
70 The dynamic power consumption of a processor depends on many factors.
73 - The time the processor spends running, consuming dynamic power, as
74 compared to the time in idle states where dynamic consumption is
76 - The voltage and frequency levels as a result of DVFS. The DVFS
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|
| /kernel/linux/linux-5.10/arch/x86/include/asm/fpu/ |
| D | xstate.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
43 * at each context switch can cause high CPU and space overhead, which should
45 * on demand. The on-demand dynamic supervisor features are set in this mask.
47 * Unlike the existing supported supervisor features, a dynamic supervisor
48 * feature does not allocate a buffer in task->fpu, and the corresponding
51 * To support a dynamic supervisor feature, a developer should follow the
53 * - Do dynamically allocate a buffer for the supervisor state component.
54 * - Do manually invoke the XSAVES/XRSTORS instruction to save/restore the
56 * - Don't set the bit corresponding to the dynamic supervisor feature in
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/interrupt-controller/ |
| D | snps,archs-idu-intc.txt | 1 * ARC-HS Interrupt Distribution Unit
4 for dynamic IRQ routing, load balancing of common/external IRQs towards core
9 - compatible: "snps,archs-idu-intc"
10 - interrupt-controller: This is an interrupt controller.
11 - #interrupt-cells: Must be <1> or <2>.
18 - bits[3:0] trigger type and level flags
19 1 = low-to-high edge triggered
20 2 = NOT SUPPORTED (high-to-low edge triggered)
21 4 = active high level-sensitive <<< DEFAULT
22 8 = NOT SUPPORTED (active low level-sensitive)
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|
| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/interrupt-controller/ |
| D | snps,archs-idu-intc.txt | 1 * ARC-HS Interrupt Distribution Unit
4 for dynamic IRQ routing, load balancing of common/external IRQs towards core
9 - compatible: "snps,archs-idu-intc"
10 - interrupt-controller: This is an interrupt controller.
11 - #interrupt-cells: Must be <1> or <2>.
18 - bits[3:0] trigger type and level flags
19 1 = low-to-high edge triggered
20 2 = NOT SUPPORTED (high-to-low edge triggered)
21 4 = active high level-sensitive <<< DEFAULT
22 8 = NOT SUPPORTED (active low level-sensitive)
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|
| /kernel/linux/linux-6.6/tools/testing/selftests/drivers/net/mlxsw/ |
| D | qos_ets_strict.sh | 2 # SPDX-License-Identifier: GPL-2.0
8 # them. In H3, we expect to see (almost) exclusively the high-priority traffic.
13 # +---------------------------+ +-----------------------------+
17 # | e-qos-map 0:1 | | | | e-qos-map 0:2 |
20 # +-----------------|---------+ +---------|-------------------+
22 # +-----------------|-------------------------------------|-------------------+
25 # | +---------------|-----------+ +----------|----------------+ |
29 # | +---------------|-----------+ +----------|----------------+ |
34 # | | ETS: (up n->tc n for n in 0..7) |
36 # +------------------------------------|--------------------------------------+
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|
| /kernel/linux/linux-5.10/tools/testing/selftests/drivers/net/mlxsw/ |
| D | qos_ets_strict.sh | 2 # SPDX-License-Identifier: GPL-2.0
8 # them. In H3, we expect to see (almost) exclusively the high-priority traffic.
13 # +---------------------------+ +-----------------------------+
17 # | e-qos-map 0:1 | | | | e-qos-map 0:2 |
20 # +-----------------|---------+ +---------|-------------------+
22 # +-----------------|-------------------------------------|-------------------+
25 # | +---------------|-----------+ +----------|----------------+ |
29 # | +---------------|-----------+ +----------|----------------+ |
34 # | | ETS: (up n->tc n for n in 0..7) |
36 # +------------------------------------|--------------------------------------+
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|
| /kernel/linux/linux-5.10/drivers/staging/media/atomisp/include/hmm/ |
| D | hmm_common.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
77 * dyc_size: dynamic mem pool size.
78 * dyc_thr: dynamic mem pool high watermark.
|
| /kernel/linux/linux-5.10/tools/power/cpupower/bench/ |
| D | README-BENCH | 1 This is cpufreq-bench, a microbenchmark for the cpufreq framework.
7 - Identify worst case performance loss when doing dynamic frequency
9 - Identify average reaction time of a governor to CPU load changes
10 - (Stress) Testing whether a cpufreq low level driver or governor works
12 - Identify cpufreq related performance regressions between kernels
13 - Possibly Real time priority testing? -> what happens if there are
15 - ...
18 - Power saving related regressions (In fact as better the performance
21 - Real world (workloads)
27 cpufreq-bench helps to test the condition of a given cpufreq governor.
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|
| /kernel/linux/linux-6.6/tools/power/cpupower/bench/ |
| D | README-BENCH | 1 This is cpufreq-bench, a microbenchmark for the cpufreq framework.
7 - Identify worst case performance loss when doing dynamic frequency
9 - Identify average reaction time of a governor to CPU load changes
10 - (Stress) Testing whether a cpufreq low level driver or governor works
12 - Identify cpufreq related performance regressions between kernels
13 - Possibly Real time priority testing? -> what happens if there are
15 - ...
18 - Power saving related regressions (In fact as better the performance
21 - Real world (workloads)
27 cpufreq-bench helps to test the condition of a given cpufreq governor.
[all …]
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| /kernel/linux/linux-5.10/drivers/cpufreq/ |
| D | pmac32-cpufreq.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2002 - 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org>
41 * init/main.c to make it non-init before enabling DEBUG_FREQ
50 * Currently, PowerMac cpufreq supports only high & low frequencies
120 /* tweak L2 for high voltage */ in cpu_750fx_cpu_speed()
254 * the above didn't re-enable the DEC */ in pmu_set_cpu_speed()
270 save_l3cr = _get_L3CR(); /* (returns -1 if not available) */ in pmu_set_cpu_speed()
271 save_l2cr = _get_L2CR(); /* (returns -1 if not available) */ in pmu_set_cpu_speed()
299 switch_mmu_context(NULL, current->active_mm, NULL); in pmu_set_cpu_speed()
310 * as soon as interrupts are re-enabled and the generic in pmu_set_cpu_speed()
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| /kernel/linux/linux-6.6/drivers/cpufreq/ |
| D | pmac32-cpufreq.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2002 - 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org>
41 * init/main.c to make it non-init before enabling DEBUG_FREQ
50 * Currently, PowerMac cpufreq supports only high & low frequencies
120 /* tweak L2 for high voltage */ in cpu_750fx_cpu_speed()
254 * the above didn't re-enable the DEC */ in pmu_set_cpu_speed()
270 save_l3cr = _get_L3CR(); /* (returns -1 if not available) */ in pmu_set_cpu_speed()
271 save_l2cr = _get_L2CR(); /* (returns -1 if not available) */ in pmu_set_cpu_speed()
299 switch_mmu_context(NULL, current->active_mm, NULL); in pmu_set_cpu_speed()
310 * as soon as interrupts are re-enabled and the generic in pmu_set_cpu_speed()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/display/exynos/ |
| D | exynos_dp.txt | 5 -dp-controller node
6 -dptx-phy node(defined inside dp-controller node)
8 For the DP-PHY initialization, we use the dptx-phy node.
9 Required properties for dptx-phy: deprecated, use phys and phy-names
10 -reg: deprecated
12 -samsung,enable-mask: deprecated
13 The bit-mask used to enable/disable DP PHY.
15 For the Panel initialization, we read data from dp-controller node.
16 Required properties for dp-controller:
17 -compatible:
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/display/exynos/ |
| D | exynos_dp.txt | 5 -dp-controller node
6 -dptx-phy node(defined inside dp-controller node)
8 For the DP-PHY initialization, we use the dptx-phy node.
9 Required properties for dptx-phy: deprecated, use phys and phy-names
10 -reg: deprecated
12 -samsung,enable-mask: deprecated
13 The bit-mask used to enable/disable DP PHY.
15 For the Panel initialization, we read data from dp-controller node.
16 Required properties for dp-controller:
17 -compatible:
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|
| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/sound/ |
| D | cirrus,cs42l42.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - patches@opensource.cirrus.com
13 The CS42L42 is a low-power audio codec designed for portable applications.
14 It provides a high-dynamic range, stereo DAC for audio playback and a mono
15 high-dynamic-range ADC for audio capture. There is an integrated headset
21 - cirrus,cs42l42
22 - cirrus,cs42l83
29 VP-supply:
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|
| /kernel/linux/linux-5.10/include/linux/mfd/ |
| D | ac100.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2016 Chen-Yu Tsai
7 * Chen-Yu Tsai <wens@csie.org>
84 /* ADC digital audio processing (high pass filter & auto gain control */
91 #define AC100_ADC_DAP_L_H_A_C 0x86 /* Left High Avg. Coef */
93 #define AC100_ADC_DAP_R_H_A_C 0x88 /* Right High Avg. Coef */
100 #define AC100_ADC_DAP_L_H_N_A_C 0x8f /* Left High Noise Avg. Coef */
102 #define AC100_ADC_DAP_R_H_N_A_C 0x91 /* Right High Noise Avg. Coef */
104 #define AC100_ADC_DAP_H_HPF_C 0x93 /* High High-Pass-Filter Coef */
105 #define AC100_ADC_DAP_L_HPF_C 0x94 /* Low High-Pass-Filter Coef */
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| /kernel/linux/linux-6.6/include/linux/mfd/ |
| D | ac100.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Copyright (C) 2016 Chen-Yu Tsai
7 * Chen-Yu Tsai <wens@csie.org>
84 /* ADC digital audio processing (high pass filter & auto gain control */
91 #define AC100_ADC_DAP_L_H_A_C 0x86 /* Left High Avg. Coef */
93 #define AC100_ADC_DAP_R_H_A_C 0x88 /* Right High Avg. Coef */
100 #define AC100_ADC_DAP_L_H_N_A_C 0x8f /* Left High Noise Avg. Coef */
102 #define AC100_ADC_DAP_R_H_N_A_C 0x91 /* Right High Noise Avg. Coef */
104 #define AC100_ADC_DAP_H_HPF_C 0x93 /* High High-Pass-Filter Coef */
105 #define AC100_ADC_DAP_L_HPF_C 0x94 /* Low High-Pass-Filter Coef */
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|