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https://mirrors.bfsu.edu.cn/git/linux.git
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More power management updates for 6.5-rc1
- Add missing __init annotation to one function in the intel_idle
drvier (Rafael Wysocki).
- Make intel_pstate use a correct scaling factor when mapping HWP
performance levels to frequency values on hybrid-capable systems
with disabled E-cores (Srinivas Pandruvada).
- Fix Kconfig dependencies of the cpufreq-dt-platform driver (Viresh
Kumar).
- Add support to build cpufreq-dt-platdev as a module (Zhipeng Wang).
- Don't allocate Sparc's cpufreq_driver dynamically (Viresh Kumar).
- Add support for TI's AM62A7 platform (Vibhore Vardhan).
- Add support for Armada's ap807 platform (Russell King (Oracle)).
- Add support for StarFive JH7110 SoC (Mason Huo).
- Fix voltage selection for Mediatek Socs (Daniel Golle).
- Fix error handling in Tegra's cpufreq driver (Christophe JAILLET).
- Document Qualcomm's IPQ8074 in DT bindings (Robert Marko).
- Don't warn for disabling a non-existing frequency for imx6q cpufreq
driver (Christoph Niedermaier).
- Use dev_err_probe() in Qualcomm's cpufreq driver (Andrew Halaney).
- Simplify performance state related logic in the OPP core (Viresh
Kumar).
- Fix use-after-free and improve locking around lazy_opp_tables (Viresh
Kumar, Stephan Gerhold).
- Minor cleanups - using dev_err_probe() and rate-limiting debug
messages (Andrew Halaney, Adrián Larumbe).
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Merge tag 'pm-6.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These add support for new hardware (ap807 and AM62A7), fix several
issues in cpufreq drivers and in the operating performance points
(OPP) framework, fix up intel_idle after recent changes and add
documentation.
Specifics:
- Add missing __init annotation to one function in the intel_idle
drvier (Rafael Wysocki)
- Make intel_pstate use a correct scaling factor when mapping HWP
performance levels to frequency values on hybrid-capable systems
with disabled E-cores (Srinivas Pandruvada)
- Fix Kconfig dependencies of the cpufreq-dt-platform driver (Viresh
Kumar)
- Add support to build cpufreq-dt-platdev as a module (Zhipeng Wang)
- Don't allocate Sparc's cpufreq_driver dynamically (Viresh Kumar)
- Add support for TI's AM62A7 platform (Vibhore Vardhan)
- Add support for Armada's ap807 platform (Russell King (Oracle))
- Add support for StarFive JH7110 SoC (Mason Huo)
- Fix voltage selection for Mediatek Socs (Daniel Golle)
- Fix error handling in Tegra's cpufreq driver (Christophe JAILLET)
- Document Qualcomm's IPQ8074 in DT bindings (Robert Marko)
- Don't warn for disabling a non-existing frequency for imx6q cpufreq
driver (Christoph Niedermaier)
- Use dev_err_probe() in Qualcomm's cpufreq driver (Andrew Halaney)
- Simplify performance state related logic in the OPP core (Viresh
Kumar)
- Fix use-after-free and improve locking around lazy_opp_tables
(Viresh Kumar, Stephan Gerhold)
- Minor cleanups - using dev_err_probe() and rate-limiting debug
messages (Andrew Halaney, Adrián Larumbe)"
* tag 'pm-6.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
cpufreq: intel_pstate: Fix scaling for hybrid-capable systems with disabled E-cores
cpufreq: Make CONFIG_CPUFREQ_DT_PLATDEV depend on OF
intel_idle: Add __init annotation to matchup_vm_state_with_baremetal()
OPP: Properly propagate error along when failing to get icc_path
OPP: Use dev_err_probe() when failing to get icc_path
cpufreq: qcom-cpufreq-hw: Use dev_err_probe() when failing to get icc paths
cpufreq: mediatek: correct voltages for MT7622 and MT7623
cpufreq: armada-8k: add ap807 support
OPP: Simplify the over-designed pstate <-> level dance
OPP: pstate is only valid for genpd OPP tables
OPP: don't drop performance constraint on OPP table removal
OPP: Protect `lazy_opp_tables` list with `opp_table_lock`
OPP: Staticize `lazy_opp_tables` in of.c
cpufreq: dt-platdev: Support building as module
opp: Fix use-after-free in lazy_opp_tables after probe deferral
dt-bindings: cpufreq: qcom-cpufreq-nvmem: document IPQ8074
cpufreq: dt-platdev: Blacklist ti,am62a7 SoC
cpufreq: ti-cpufreq: Add support for AM62A7
OPP: rate-limit debug messages when no change in OPP is required
cpufreq: imx6q: don't warn for disabling a non-existing frequency
...
This commit is contained in:
Linus Torvalds
commit
ccf46d8531
@ -28,6 +28,7 @@ select:
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- qcom,apq8064
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- qcom,apq8096
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- qcom,ipq8064
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- qcom,ipq8074
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- qcom,msm8939
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- qcom,msm8960
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- qcom,msm8974
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@ -218,7 +218,8 @@ config CPUFREQ_DT
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If in doubt, say N.
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config CPUFREQ_DT_PLATDEV
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bool
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tristate "Generic DT based cpufreq platdev driver"
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depends on OF
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help
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This adds a generic DT based cpufreq platdev driver for frequency
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management. This creates a 'cpufreq-dt' platform device, on the
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@ -21,6 +21,13 @@
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#include <linux/pm_opp.h>
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#include <linux/slab.h>
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static const struct of_device_id __maybe_unused armada_8k_cpufreq_of_match[] = {
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{ .compatible = "marvell,ap806-cpu-clock" },
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{ .compatible = "marvell,ap807-cpu-clock" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, armada_8k_cpufreq_of_match);
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/*
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* Setup the opps list with the divider for the max frequency, that
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* will be filled at runtime.
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@ -127,7 +134,8 @@ static int __init armada_8k_cpufreq_init(void)
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struct device_node *node;
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struct cpumask cpus;
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node = of_find_compatible_node(NULL, NULL, "marvell,ap806-cpu-clock");
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node = of_find_matching_node_and_match(NULL, armada_8k_cpufreq_of_match,
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NULL);
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if (!node || !of_device_is_available(node)) {
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of_node_put(node);
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return -ENODEV;
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@ -204,12 +212,6 @@ static void __exit armada_8k_cpufreq_exit(void)
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}
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module_exit(armada_8k_cpufreq_exit);
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static const struct of_device_id __maybe_unused armada_8k_cpufreq_of_match[] = {
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{ .compatible = "marvell,ap806-cpu-clock" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, armada_8k_cpufreq_of_match);
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MODULE_AUTHOR("Gregory Clement <gregory.clement@bootlin.com>");
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MODULE_DESCRIPTION("Armada 8K cpufreq driver");
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MODULE_LICENSE("GPL");
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@ -5,6 +5,7 @@
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*/
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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@ -85,6 +86,8 @@ static const struct of_device_id allowlist[] __initconst = {
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{ .compatible = "st-ericsson,u9500", },
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{ .compatible = "st-ericsson,u9540", },
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{ .compatible = "starfive,jh7110", },
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{ .compatible = "ti,omap2", },
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{ .compatible = "ti,omap4", },
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{ .compatible = "ti,omap5", },
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@ -165,6 +168,7 @@ static const struct of_device_id blocklist[] __initconst = {
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{ .compatible = "ti,dra7", },
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{ .compatible = "ti,omap3", },
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{ .compatible = "ti,am625", },
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{ .compatible = "ti,am62a7", },
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{ .compatible = "qcom,ipq8064", },
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{ .compatible = "qcom,apq8064", },
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@ -214,3 +218,4 @@ create_pdev:
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sizeof(struct cpufreq_dt_platform_data)));
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}
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core_initcall(cpufreq_dt_platdev_init);
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MODULE_LICENSE("GPL");
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@ -209,6 +209,14 @@ static struct cpufreq_driver imx6q_cpufreq_driver = {
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.suspend = cpufreq_generic_suspend,
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};
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static void imx6x_disable_freq_in_opp(struct device *dev, unsigned long freq)
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{
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int ret = dev_pm_opp_disable(dev, freq);
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if (ret < 0 && ret != -ENODEV)
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dev_warn(dev, "failed to disable %ldMHz OPP\n", freq / 1000000);
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}
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#define OCOTP_CFG3 0x440
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#define OCOTP_CFG3_SPEED_SHIFT 16
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#define OCOTP_CFG3_SPEED_1P2GHZ 0x3
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@ -254,17 +262,15 @@ static int imx6q_opp_check_speed_grading(struct device *dev)
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val &= 0x3;
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if (val < OCOTP_CFG3_SPEED_996MHZ)
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if (dev_pm_opp_disable(dev, 996000000))
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dev_warn(dev, "failed to disable 996MHz OPP\n");
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imx6x_disable_freq_in_opp(dev, 996000000);
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if (of_machine_is_compatible("fsl,imx6q") ||
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of_machine_is_compatible("fsl,imx6qp")) {
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if (val != OCOTP_CFG3_SPEED_852MHZ)
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if (dev_pm_opp_disable(dev, 852000000))
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dev_warn(dev, "failed to disable 852MHz OPP\n");
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imx6x_disable_freq_in_opp(dev, 852000000);
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if (val != OCOTP_CFG3_SPEED_1P2GHZ)
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if (dev_pm_opp_disable(dev, 1200000000))
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dev_warn(dev, "failed to disable 1.2GHz OPP\n");
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imx6x_disable_freq_in_opp(dev, 1200000000);
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}
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return 0;
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@ -316,20 +322,16 @@ static int imx6ul_opp_check_speed_grading(struct device *dev)
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val >>= OCOTP_CFG3_SPEED_SHIFT;
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val &= 0x3;
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if (of_machine_is_compatible("fsl,imx6ul")) {
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if (of_machine_is_compatible("fsl,imx6ul"))
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if (val != OCOTP_CFG3_6UL_SPEED_696MHZ)
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if (dev_pm_opp_disable(dev, 696000000))
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dev_warn(dev, "failed to disable 696MHz OPP\n");
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}
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imx6x_disable_freq_in_opp(dev, 696000000);
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if (of_machine_is_compatible("fsl,imx6ull")) {
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if (val != OCOTP_CFG3_6ULL_SPEED_792MHZ)
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if (dev_pm_opp_disable(dev, 792000000))
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dev_warn(dev, "failed to disable 792MHz OPP\n");
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imx6x_disable_freq_in_opp(dev, 792000000);
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if (val != OCOTP_CFG3_6ULL_SPEED_900MHZ)
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if (dev_pm_opp_disable(dev, 900000000))
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dev_warn(dev, "failed to disable 900MHz OPP\n");
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imx6x_disable_freq_in_opp(dev, 900000000);
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}
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return ret;
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@ -302,6 +302,13 @@ static bool hwp_forced __read_mostly;
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static struct cpufreq_driver *intel_pstate_driver __read_mostly;
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#define HYBRID_SCALING_FACTOR 78741
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static inline int core_get_scaling(void)
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{
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return 100000;
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}
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#ifdef CONFIG_ACPI
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static bool acpi_ppc;
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#endif
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@ -400,6 +407,26 @@ static int intel_pstate_get_cppc_guaranteed(int cpu)
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return cppc_perf.nominal_perf;
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}
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static int intel_pstate_cppc_get_scaling(int cpu)
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{
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struct cppc_perf_caps cppc_perf;
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int ret;
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ret = cppc_get_perf_caps(cpu, &cppc_perf);
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/*
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* If the nominal frequency and the nominal performance are not
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* zero and the ratio between them is not 100, return the hybrid
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* scaling factor.
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*/
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if (!ret && cppc_perf.nominal_perf && cppc_perf.nominal_freq &&
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cppc_perf.nominal_perf * 100 != cppc_perf.nominal_freq)
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return HYBRID_SCALING_FACTOR;
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return core_get_scaling();
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}
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#else /* CONFIG_ACPI_CPPC_LIB */
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static inline void intel_pstate_set_itmt_prio(int cpu)
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{
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@ -492,6 +519,11 @@ static inline int intel_pstate_get_cppc_guaranteed(int cpu)
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{
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return -ENOTSUPP;
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}
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static int intel_pstate_cppc_get_scaling(int cpu)
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{
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return core_get_scaling();
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}
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#endif /* CONFIG_ACPI_CPPC_LIB */
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/**
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@ -1897,11 +1929,6 @@ static int core_get_turbo_pstate(int cpu)
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return ret;
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}
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static inline int core_get_scaling(void)
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{
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return 100000;
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}
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static u64 core_get_val(struct cpudata *cpudata, int pstate)
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{
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u64 val;
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@ -1938,16 +1965,28 @@ static void hybrid_get_type(void *data)
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*cpu_type = get_this_hybrid_cpu_type();
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}
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static int hybrid_get_cpu_scaling(int cpu)
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static int hwp_get_cpu_scaling(int cpu)
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{
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u8 cpu_type = 0;
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smp_call_function_single(cpu, hybrid_get_type, &cpu_type, 1);
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/* P-cores have a smaller perf level-to-freqency scaling factor. */
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if (cpu_type == 0x40)
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return 78741;
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return HYBRID_SCALING_FACTOR;
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return core_get_scaling();
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/* Use default core scaling for E-cores */
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if (cpu_type == 0x20)
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return core_get_scaling();
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/*
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* If reached here, this system is either non-hybrid (like Tiger
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* Lake) or hybrid-capable (like Alder Lake or Raptor Lake) with
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* no E cores (in which case CPUID for hybrid support is 0).
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*
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* The CPPC nominal_frequency field is 0 for non-hybrid systems,
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* so the default core scaling will be used for them.
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*/
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return intel_pstate_cppc_get_scaling(cpu);
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}
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static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
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@ -3395,8 +3434,7 @@ static int __init intel_pstate_init(void)
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if (!default_driver)
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default_driver = &intel_pstate;
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if (boot_cpu_has(X86_FEATURE_HYBRID_CPU))
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pstate_funcs.get_cpu_scaling = hybrid_get_cpu_scaling;
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pstate_funcs.get_cpu_scaling = hwp_get_cpu_scaling;
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goto hwp_cpu_matched;
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}
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@ -696,9 +696,16 @@ static const struct mtk_cpufreq_platform_data mt2701_platform_data = {
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static const struct mtk_cpufreq_platform_data mt7622_platform_data = {
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.min_volt_shift = 100000,
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.max_volt_shift = 200000,
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.proc_max_volt = 1360000,
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.proc_max_volt = 1350000,
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.sram_min_volt = 0,
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.sram_max_volt = 1360000,
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.sram_max_volt = 1350000,
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.ccifreq_supported = false,
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};
|
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|
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static const struct mtk_cpufreq_platform_data mt7623_platform_data = {
|
||||
.min_volt_shift = 100000,
|
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.max_volt_shift = 200000,
|
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.proc_max_volt = 1300000,
|
||||
.ccifreq_supported = false,
|
||||
};
|
||||
|
||||
@ -734,7 +741,7 @@ static const struct of_device_id mtk_cpufreq_machines[] __initconst = {
|
||||
{ .compatible = "mediatek,mt2701", .data = &mt2701_platform_data },
|
||||
{ .compatible = "mediatek,mt2712", .data = &mt2701_platform_data },
|
||||
{ .compatible = "mediatek,mt7622", .data = &mt7622_platform_data },
|
||||
{ .compatible = "mediatek,mt7623", .data = &mt7622_platform_data },
|
||||
{ .compatible = "mediatek,mt7623", .data = &mt7623_platform_data },
|
||||
{ .compatible = "mediatek,mt8167", .data = &mt8516_platform_data },
|
||||
{ .compatible = "mediatek,mt817x", .data = &mt2701_platform_data },
|
||||
{ .compatible = "mediatek,mt8173", .data = &mt2701_platform_data },
|
||||
|
||||
@ -661,7 +661,7 @@ static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
|
||||
|
||||
ret = dev_pm_opp_of_find_icc_paths(cpu_dev, NULL);
|
||||
if (ret)
|
||||
return ret;
|
||||
return dev_err_probe(dev, ret, "Failed to find icc paths\n");
|
||||
|
||||
for (num_domains = 0; num_domains < MAX_FREQ_DOMAINS; num_domains++)
|
||||
if (!platform_get_resource(pdev, IORESOURCE_MEM, num_domains))
|
||||
|
||||
@ -20,8 +20,6 @@
|
||||
#include <asm/asi.h>
|
||||
#include <asm/timer.h>
|
||||
|
||||
static struct cpufreq_driver *cpufreq_us2e_driver;
|
||||
|
||||
struct us2e_freq_percpu_info {
|
||||
struct cpufreq_frequency_table table[6];
|
||||
};
|
||||
@ -300,12 +298,19 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
|
||||
|
||||
static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
|
||||
{
|
||||
if (cpufreq_us2e_driver)
|
||||
us2e_freq_target(policy, 0);
|
||||
|
||||
us2e_freq_target(policy, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct cpufreq_driver cpufreq_us2e_driver = {
|
||||
.name = "UltraSPARC-IIe",
|
||||
.init = us2e_freq_cpu_init,
|
||||
.verify = cpufreq_generic_frequency_table_verify,
|
||||
.target_index = us2e_freq_target,
|
||||
.get = us2e_freq_get,
|
||||
.exit = us2e_freq_cpu_exit,
|
||||
};
|
||||
|
||||
static int __init us2e_freq_init(void)
|
||||
{
|
||||
unsigned long manuf, impl, ver;
|
||||
@ -319,39 +324,15 @@ static int __init us2e_freq_init(void)
|
||||
impl = ((ver >> 32) & 0xffff);
|
||||
|
||||
if (manuf == 0x17 && impl == 0x13) {
|
||||
struct cpufreq_driver *driver;
|
||||
|
||||
ret = -ENOMEM;
|
||||
driver = kzalloc(sizeof(*driver), GFP_KERNEL);
|
||||
if (!driver)
|
||||
goto err_out;
|
||||
|
||||
us2e_freq_table = kzalloc((NR_CPUS * sizeof(*us2e_freq_table)),
|
||||
GFP_KERNEL);
|
||||
us2e_freq_table = kzalloc(NR_CPUS * sizeof(*us2e_freq_table),
|
||||
GFP_KERNEL);
|
||||
if (!us2e_freq_table)
|
||||
goto err_out;
|
||||
return -ENOMEM;
|
||||
|
||||
driver->init = us2e_freq_cpu_init;
|
||||
driver->verify = cpufreq_generic_frequency_table_verify;
|
||||
driver->target_index = us2e_freq_target;
|
||||
driver->get = us2e_freq_get;
|
||||
driver->exit = us2e_freq_cpu_exit;
|
||||
strcpy(driver->name, "UltraSPARC-IIe");
|
||||
|
||||
cpufreq_us2e_driver = driver;
|
||||
ret = cpufreq_register_driver(driver);
|
||||
ret = cpufreq_register_driver(&cpufreq_us2e_driver);
|
||||
if (ret)
|
||||
goto err_out;
|
||||
kfree(us2e_freq_table);
|
||||
|
||||
return 0;
|
||||
|
||||
err_out:
|
||||
if (driver) {
|
||||
kfree(driver);
|
||||
cpufreq_us2e_driver = NULL;
|
||||
}
|
||||
kfree(us2e_freq_table);
|
||||
us2e_freq_table = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -360,13 +341,8 @@ err_out:
|
||||
|
||||
static void __exit us2e_freq_exit(void)
|
||||
{
|
||||
if (cpufreq_us2e_driver) {
|
||||
cpufreq_unregister_driver(cpufreq_us2e_driver);
|
||||
kfree(cpufreq_us2e_driver);
|
||||
cpufreq_us2e_driver = NULL;
|
||||
kfree(us2e_freq_table);
|
||||
us2e_freq_table = NULL;
|
||||
}
|
||||
cpufreq_unregister_driver(&cpufreq_us2e_driver);
|
||||
kfree(us2e_freq_table);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
|
||||
|
||||
@ -19,8 +19,6 @@
|
||||
#include <asm/head.h>
|
||||
#include <asm/timer.h>
|
||||
|
||||
static struct cpufreq_driver *cpufreq_us3_driver;
|
||||
|
||||
struct us3_freq_percpu_info {
|
||||
struct cpufreq_frequency_table table[4];
|
||||
};
|
||||
@ -144,12 +142,19 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
|
||||
|
||||
static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
|
||||
{
|
||||
if (cpufreq_us3_driver)
|
||||
us3_freq_target(policy, 0);
|
||||
|
||||
us3_freq_target(policy, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct cpufreq_driver cpufreq_us3_driver = {
|
||||
.name = "UltraSPARC-III",
|
||||
.init = us3_freq_cpu_init,
|
||||
.verify = cpufreq_generic_frequency_table_verify,
|
||||
.target_index = us3_freq_target,
|
||||
.get = us3_freq_get,
|
||||
.exit = us3_freq_cpu_exit,
|
||||
};
|
||||
|
||||
static int __init us3_freq_init(void)
|
||||
{
|
||||
unsigned long manuf, impl, ver;
|
||||
@ -167,39 +172,15 @@ static int __init us3_freq_init(void)
|
||||
impl == CHEETAH_PLUS_IMPL ||
|
||||
impl == JAGUAR_IMPL ||
|
||||
impl == PANTHER_IMPL)) {
|
||||
struct cpufreq_driver *driver;
|
||||
|
||||
ret = -ENOMEM;
|
||||
driver = kzalloc(sizeof(*driver), GFP_KERNEL);
|
||||
if (!driver)
|
||||
goto err_out;
|
||||
|
||||
us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
|
||||
GFP_KERNEL);
|
||||
us3_freq_table = kzalloc(NR_CPUS * sizeof(*us3_freq_table),
|
||||
GFP_KERNEL);
|
||||
if (!us3_freq_table)
|
||||
goto err_out;
|
||||
return -ENOMEM;
|
||||
|
||||
driver->init = us3_freq_cpu_init;
|
||||
driver->verify = cpufreq_generic_frequency_table_verify;
|
||||
driver->target_index = us3_freq_target;
|
||||
driver->get = us3_freq_get;
|
||||
driver->exit = us3_freq_cpu_exit;
|
||||
strcpy(driver->name, "UltraSPARC-III");
|
||||
|
||||
cpufreq_us3_driver = driver;
|
||||
ret = cpufreq_register_driver(driver);
|
||||
ret = cpufreq_register_driver(&cpufreq_us3_driver);
|
||||
if (ret)
|
||||
goto err_out;
|
||||
kfree(us3_freq_table);
|
||||
|
||||
return 0;
|
||||
|
||||
err_out:
|
||||
if (driver) {
|
||||
kfree(driver);
|
||||
cpufreq_us3_driver = NULL;
|
||||
}
|
||||
kfree(us3_freq_table);
|
||||
us3_freq_table = NULL;
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -208,13 +189,8 @@ err_out:
|
||||
|
||||
static void __exit us3_freq_exit(void)
|
||||
{
|
||||
if (cpufreq_us3_driver) {
|
||||
cpufreq_unregister_driver(cpufreq_us3_driver);
|
||||
kfree(cpufreq_us3_driver);
|
||||
cpufreq_us3_driver = NULL;
|
||||
kfree(us3_freq_table);
|
||||
us3_freq_table = NULL;
|
||||
}
|
||||
cpufreq_unregister_driver(&cpufreq_us3_driver);
|
||||
kfree(us3_freq_table);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
|
||||
|
||||
@ -686,8 +686,10 @@ static int tegra194_cpufreq_probe(struct platform_device *pdev)
|
||||
|
||||
/* Check for optional OPPv2 and interconnect paths on CPU0 to enable ICC scaling */
|
||||
cpu_dev = get_cpu_device(0);
|
||||
if (!cpu_dev)
|
||||
return -EPROBE_DEFER;
|
||||
if (!cpu_dev) {
|
||||
err = -EPROBE_DEFER;
|
||||
goto err_free_res;
|
||||
}
|
||||
|
||||
if (dev_pm_opp_of_get_opp_desc_node(cpu_dev)) {
|
||||
err = dev_pm_opp_of_find_icc_paths(cpu_dev, NULL);
|
||||
|
||||
@ -337,6 +337,7 @@ static const struct of_device_id ti_cpufreq_of_match[] = {
|
||||
{ .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
|
||||
{ .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
|
||||
{ .compatible = "ti,am625", .data = &am625_soc_data, },
|
||||
{ .compatible = "ti,am62a7", .data = &am625_soc_data, },
|
||||
/* legacy */
|
||||
{ .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
|
||||
{ .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },
|
||||
|
||||
@ -2147,7 +2147,7 @@ static void __init intel_idle_cpuidle_devices_uninit(void)
|
||||
* All our short idle states are dominated by vmexit/vmenter latencies,
|
||||
* not the underlying hardware latencies so we keep our values for these.
|
||||
*/
|
||||
static void matchup_vm_state_with_baremetal(void)
|
||||
static void __init matchup_vm_state_with_baremetal(void)
|
||||
{
|
||||
int cstate;
|
||||
|
||||
|
||||
@ -29,9 +29,6 @@
|
||||
*/
|
||||
LIST_HEAD(opp_tables);
|
||||
|
||||
/* OPP tables with uninitialized required OPPs */
|
||||
LIST_HEAD(lazy_opp_tables);
|
||||
|
||||
/* Lock to allow exclusive modification to the device and opp lists */
|
||||
DEFINE_MUTEX(opp_table_lock);
|
||||
/* Flag indicating that opp_tables list is being updated at the moment */
|
||||
@ -230,17 +227,25 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_level);
|
||||
unsigned int dev_pm_opp_get_required_pstate(struct dev_pm_opp *opp,
|
||||
unsigned int index)
|
||||
{
|
||||
struct opp_table *opp_table = opp->opp_table;
|
||||
|
||||
if (IS_ERR_OR_NULL(opp) || !opp->available ||
|
||||
index >= opp->opp_table->required_opp_count) {
|
||||
index >= opp_table->required_opp_count) {
|
||||
pr_err("%s: Invalid parameters\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* required-opps not fully initialized yet */
|
||||
if (lazy_linking_pending(opp->opp_table))
|
||||
if (lazy_linking_pending(opp_table))
|
||||
return 0;
|
||||
|
||||
return opp->required_opps[index]->pstate;
|
||||
/* The required OPP table must belong to a genpd */
|
||||
if (unlikely(!opp_table->required_opp_tables[index]->is_genpd)) {
|
||||
pr_err("%s: Performance state is only valid for genpds.\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return opp->required_opps[index]->level;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(dev_pm_opp_get_required_pstate);
|
||||
|
||||
@ -938,7 +943,7 @@ static int _set_opp_bw(const struct opp_table *opp_table,
|
||||
static int _set_performance_state(struct device *dev, struct device *pd_dev,
|
||||
struct dev_pm_opp *opp, int i)
|
||||
{
|
||||
unsigned int pstate = likely(opp) ? opp->required_opps[i]->pstate : 0;
|
||||
unsigned int pstate = likely(opp) ? opp->required_opps[i]->level: 0;
|
||||
int ret;
|
||||
|
||||
if (!pd_dev)
|
||||
@ -1091,7 +1096,7 @@ static int _set_opp(struct device *dev, struct opp_table *opp_table,
|
||||
|
||||
/* Return early if nothing to do */
|
||||
if (!forced && old_opp == opp && opp_table->enabled) {
|
||||
dev_dbg(dev, "%s: OPPs are same, nothing to do\n", __func__);
|
||||
dev_dbg_ratelimited(dev, "%s: OPPs are same, nothing to do\n", __func__);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1358,7 +1363,10 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
|
||||
return opp_table;
|
||||
|
||||
remove_opp_dev:
|
||||
_of_clear_opp_table(opp_table);
|
||||
_remove_opp_dev(opp_dev, opp_table);
|
||||
mutex_destroy(&opp_table->genpd_virt_dev_lock);
|
||||
mutex_destroy(&opp_table->lock);
|
||||
err:
|
||||
kfree(opp_table);
|
||||
return ERR_PTR(ret);
|
||||
@ -1522,16 +1530,8 @@ static void _opp_table_kref_release(struct kref *kref)
|
||||
|
||||
WARN_ON(!list_empty(&opp_table->opp_list));
|
||||
|
||||
list_for_each_entry_safe(opp_dev, temp, &opp_table->dev_list, node) {
|
||||
/*
|
||||
* The OPP table is getting removed, drop the performance state
|
||||
* constraints.
|
||||
*/
|
||||
if (opp_table->genpd_performance_state)
|
||||
dev_pm_genpd_set_performance_state((struct device *)(opp_dev->dev), 0);
|
||||
|
||||
list_for_each_entry_safe(opp_dev, temp, &opp_table->dev_list, node)
|
||||
_remove_opp_dev(opp_dev, opp_table);
|
||||
}
|
||||
|
||||
mutex_destroy(&opp_table->genpd_virt_dev_lock);
|
||||
mutex_destroy(&opp_table->lock);
|
||||
@ -2704,6 +2704,12 @@ int dev_pm_opp_xlate_performance_state(struct opp_table *src_table,
|
||||
if (!src_table || !src_table->required_opp_count)
|
||||
return pstate;
|
||||
|
||||
/* Both OPP tables must belong to genpds */
|
||||
if (unlikely(!src_table->is_genpd || !dst_table->is_genpd)) {
|
||||
pr_err("%s: Performance state is only valid for genpds.\n", __func__);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* required-opps not fully initialized yet */
|
||||
if (lazy_linking_pending(src_table))
|
||||
return -EBUSY;
|
||||
@ -2722,8 +2728,8 @@ int dev_pm_opp_xlate_performance_state(struct opp_table *src_table,
|
||||
mutex_lock(&src_table->lock);
|
||||
|
||||
list_for_each_entry(opp, &src_table->opp_list, node) {
|
||||
if (opp->pstate == pstate) {
|
||||
dest_pstate = opp->required_opps[i]->pstate;
|
||||
if (opp->level == pstate) {
|
||||
dest_pstate = opp->required_opps[i]->level;
|
||||
goto unlock;
|
||||
}
|
||||
}
|
||||
|
||||
@ -152,7 +152,6 @@ void opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table)
|
||||
debugfs_create_bool("dynamic", S_IRUGO, d, &opp->dynamic);
|
||||
debugfs_create_bool("turbo", S_IRUGO, d, &opp->turbo);
|
||||
debugfs_create_bool("suspend", S_IRUGO, d, &opp->suspend);
|
||||
debugfs_create_u32("performance_state", S_IRUGO, d, &opp->pstate);
|
||||
debugfs_create_u32("level", S_IRUGO, d, &opp->level);
|
||||
debugfs_create_ulong("clock_latency_ns", S_IRUGO, d,
|
||||
&opp->clock_latency_ns);
|
||||
|
||||
@ -21,6 +21,9 @@
|
||||
|
||||
#include "opp.h"
|
||||
|
||||
/* OPP tables with uninitialized required OPPs, protected by opp_table_lock */
|
||||
static LIST_HEAD(lazy_opp_tables);
|
||||
|
||||
/*
|
||||
* Returns opp descriptor node for a device node, caller must
|
||||
* do of_node_put().
|
||||
@ -145,7 +148,10 @@ static void _opp_table_free_required_tables(struct opp_table *opp_table)
|
||||
|
||||
opp_table->required_opp_count = 0;
|
||||
opp_table->required_opp_tables = NULL;
|
||||
|
||||
mutex_lock(&opp_table_lock);
|
||||
list_del(&opp_table->lazy);
|
||||
mutex_unlock(&opp_table_lock);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -194,8 +200,15 @@ static void _opp_table_alloc_required_tables(struct opp_table *opp_table,
|
||||
}
|
||||
|
||||
/* Let's do the linking later on */
|
||||
if (lazy)
|
||||
if (lazy) {
|
||||
/*
|
||||
* The OPP table is not held while allocating the table, take it
|
||||
* now to avoid corruption to the lazy_opp_tables list.
|
||||
*/
|
||||
mutex_lock(&opp_table_lock);
|
||||
list_add(&opp_table->lazy, &lazy_opp_tables);
|
||||
mutex_unlock(&opp_table_lock);
|
||||
}
|
||||
else
|
||||
_update_set_required_opps(opp_table);
|
||||
|
||||
@ -500,11 +513,7 @@ int dev_pm_opp_of_find_icc_paths(struct device *dev,
|
||||
for (i = 0; i < num_paths; i++) {
|
||||
paths[i] = of_icc_get_by_index(dev, i);
|
||||
if (IS_ERR(paths[i])) {
|
||||
ret = PTR_ERR(paths[i]);
|
||||
if (ret != -EPROBE_DEFER) {
|
||||
dev_err(dev, "%s: Unable to get path%d: %d\n",
|
||||
__func__, i, ret);
|
||||
}
|
||||
ret = dev_err_probe(dev, PTR_ERR(paths[i]), "%s: Unable to get path%d\n", __func__, i);
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
@ -932,9 +941,6 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table,
|
||||
if (ret)
|
||||
goto free_required_opps;
|
||||
|
||||
if (opp_table->is_genpd)
|
||||
new_opp->pstate = pm_genpd_opp_to_performance_state(dev, new_opp);
|
||||
|
||||
ret = _opp_add(dev, new_opp, opp_table);
|
||||
if (ret) {
|
||||
/* Don't return error for duplicate OPPs */
|
||||
@ -1021,14 +1027,6 @@ static int _of_add_opp_table_v2(struct device *dev, struct opp_table *opp_table)
|
||||
goto remove_static_opp;
|
||||
}
|
||||
|
||||
list_for_each_entry(opp, &opp_table->opp_list, node) {
|
||||
/* Any non-zero performance state would enable the feature */
|
||||
if (opp->pstate) {
|
||||
opp_table->genpd_performance_state = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
lazy_link_required_opp_table(opp_table);
|
||||
|
||||
return 0;
|
||||
@ -1387,9 +1385,15 @@ int of_get_required_opp_performance_state(struct device_node *np, int index)
|
||||
goto put_required_np;
|
||||
}
|
||||
|
||||
/* The OPP tables must belong to a genpd */
|
||||
if (unlikely(!opp_table->is_genpd)) {
|
||||
pr_err("%s: Performance state is only valid for genpds.\n", __func__);
|
||||
goto put_required_np;
|
||||
}
|
||||
|
||||
opp = _find_opp_of_np(opp_table, required_np);
|
||||
if (opp) {
|
||||
pstate = opp->pstate;
|
||||
pstate = opp->level;
|
||||
dev_pm_opp_put(opp);
|
||||
}
|
||||
|
||||
|
||||
@ -26,7 +26,7 @@ struct regulator;
|
||||
/* Lock to allow exclusive modification to the device and opp lists */
|
||||
extern struct mutex opp_table_lock;
|
||||
|
||||
extern struct list_head opp_tables, lazy_opp_tables;
|
||||
extern struct list_head opp_tables;
|
||||
|
||||
/* OPP Config flags */
|
||||
#define OPP_CONFIG_CLK BIT(0)
|
||||
@ -78,7 +78,6 @@ struct opp_config_data {
|
||||
* @turbo: true if turbo (boost) OPP
|
||||
* @suspend: true if suspend OPP
|
||||
* @removed: flag indicating that OPP's reference is dropped by OPP core.
|
||||
* @pstate: Device's power domain's performance state.
|
||||
* @rates: Frequencies in hertz
|
||||
* @level: Performance level
|
||||
* @supplies: Power supplies voltage/current values
|
||||
@ -101,7 +100,6 @@ struct dev_pm_opp {
|
||||
bool turbo;
|
||||
bool suspend;
|
||||
bool removed;
|
||||
unsigned int pstate;
|
||||
unsigned long *rates;
|
||||
unsigned int level;
|
||||
|
||||
@ -182,7 +180,6 @@ enum opp_table_access {
|
||||
* @paths: Interconnect path handles
|
||||
* @path_count: Number of interconnect paths
|
||||
* @enabled: Set to true if the device's resources are enabled/configured.
|
||||
* @genpd_performance_state: Device's power domain support performance state.
|
||||
* @is_genpd: Marks if the OPP table belongs to a genpd.
|
||||
* @set_required_opps: Helper responsible to set required OPPs.
|
||||
* @dentry: debugfs dentry pointer of the real device directory (not links).
|
||||
@ -233,7 +230,6 @@ struct opp_table {
|
||||
struct icc_path **paths;
|
||||
unsigned int path_count;
|
||||
bool enabled;
|
||||
bool genpd_performance_state;
|
||||
bool is_genpd;
|
||||
int (*set_required_opps)(struct device *dev,
|
||||
struct opp_table *opp_table, struct dev_pm_opp *opp, bool scaling_down);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user