exynos5_dmc_get_status(9)

💅 exynos5_dmc_get_status

okay bestie, so this is a kernel API manual page — Kernel API Manual energy, and the function we're stanning is exynos5_dmc_get_status. one job, and it does it: reads the current DMC performance statistics. that's it. that's the whole vibe. ✨

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🌸 NAME 🌸

exynos5_dmc_get_status — Read current DMC performance statistics.

like, literally what it says on the tin, no cap. it goes and reads the DMC's current performance stats for you.

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✨ SYNOPSIS ✨

int exynos5_dmc_get_status (struct device *dev , struct
       devfreq_dev_status *stat );

she's an int returning icon, she takes two args, and yes the spacing is exactly like that 🙈 — copy it character for character, don't @ me.

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🎀 ARGUMENTS 🎀

• dev — the device you're asking for statistics about. it's giving "who's the main character here" — this is it. 🫶
• stat — the structure that holds the statistic fields. this is where the numbers end up. she's the container, the vessel, the whole point. 💖

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🦋 DESCRIPTION 🦋

okay so what actually happens: the function reads the DMC performance counters and calculates busy_time and total_time. that's the whole bit. love that for us.

now here's the important part — to protect from overflow, the values are shifted right by 10. not 9, not 11. ten. remember it. 💀 (this is a real caveat bestie, don't skip it, overflow is not cute.)

after reading out the counters, they're setup to count again — so the whole thing resets and gets ready for round two. iconic behavior, honestly. 🔥

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🌈 SEE ALSO 🌈

the whole friend group, fr fr — every single one of these, no skips:

• Kernel file ./drivers/memory/samsung/exynos5422-dmc.c
• struct dmc_opp_table(9)
• struct exynos5_dmc(9)
• find_target_freq_idx(9)
• exynos5_switch_timing_regs(9)
• exynos5_init_freq_table(9)
• exynos5_set_bypass_dram_timings(9)
• exynos5_dram_change_timings(9)
• exynos5_dmc_align_target_voltage(9)
• exynos5_dmc_align_bypass_voltage(9)
• exynos5_dmc_align_bypass_dram_timings(9)
• exynos5_dmc_switch_to_bypass_configuration(9)
• exynos5_dmc_change_freq_and_volt(9)
• exynos5_dmc_get_volt_freq(9)
• exynos5_dmc_target(9)
• exynos5_counters_get(9)
• exynos5_dmc_start_perf_events(9)
• exynos5_dmc_perf_events_calc(9)
• exynos5_dmc_perf_events_check(9)
• exynos5_dmc_enable_perf_events(9)
• exynos5_dmc_disable_perf_events(9)
• exynos5_dmc_get_cur_freq(9)
• exynos5_dmc_align_init_freq(9)
• create_timings_aligned(9)
• of_get_dram_timings(9)
• exynos5_dmc_init_clks(9)
• exynos5_performance_counters_init(9)
• exynos5_dmc_set_pause_on_switching(9)
• exynos5_dmc_probe(9)
• exynos5_dmc_remove(9)

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💜 little reminder before you go: the shift-right-by-10 thing is load-bearing. it's there so the counters don't overflow. respect the shift. 🙏

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k bye bestie, this page came from ./drivers/memory/samsung and it's dated October 2026 — so yeah, she's from the future and she's still serving. 🧚‍♀️💅 exynos5_dmc_get_status(9) out. 🎀