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subhobhai943
492045b24d
- Implement Intel 82574L / 82567LM / I217 / I219 PCIe Gigabit NIC driver with DMA ring buffers and auto-negotiation in drivers/net/e1000e.c and include/drivers/e1000e.h - Implement VirtIO-GPU 2D hardware graphics display adapter driver with dirty rect flushing in drivers/virtio/virtio_gpu.c and include/drivers/virtio_gpu.h - Implement Dynamic CPU Frequency Scaling and ACPI CPPC Power Governor with performance, powersave, ondemand, conservative, and schedutil policies in drivers/power/cpufreq.c and include/drivers/cpufreq.h - Implement VirtIO-Input para-virtualized tablet/mouse event driver in drivers/virtio/virtio_input.c and include/drivers/virtio_input.h - Expand stage2 kernel bootloader loading boundary to 768 KB (1536 sectors) - Add LazyBox applets: 'cpufreq', 'gpuinfo', 'e1000e' - Verified across x86_64, AArch64, and ARMv8i targets
33 lines
794 B
C
33 lines
794 B
C
#ifndef _DRIVERS_CPUFREQ_H
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#define _DRIVERS_CPUFREQ_H
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#include <stdint.h>
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#include <stdbool.h>
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typedef enum {
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CPUFREQ_GOV_PERFORMANCE,
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CPUFREQ_GOV_POWERSAVE,
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CPUFREQ_GOV_ONDEMAND,
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CPUFREQ_GOV_CONSERVATIVE,
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CPUFREQ_GOV_SCHEDUTIL,
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} cpufreq_gov_type_t;
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typedef struct {
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uint32_t current_khz;
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uint32_t min_khz;
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uint32_t max_khz;
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uint32_t voltage_mv;
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cpufreq_gov_type_t governor;
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uint64_t transitions;
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} cpufreq_stats_t;
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void cpufreq_init(void);
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int cpufreq_set_governor(cpufreq_gov_type_t gov);
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int cpufreq_set_governor_by_name(const char* name);
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int cpufreq_set_frequency(uint32_t target_khz);
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cpufreq_stats_t cpufreq_get_stats(void);
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void cpufreq_update_load(uint32_t cpu_load_percent);
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void cpufreq_dump_info(void);
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#endif // _DRIVERS_CPUFREQ_H
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