exynos5_dmc..._perf_events(9)

💖 exynos5_dmc..._perf_events(9) — like, the Kernel API Manual entry, bestie 💖

okay so picture this: it's a kernel API manual page, right, and it's all about one tiny function that gets the performance party started on the Exynos5 DMC. stay with me, it's actually so good 🫶

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✨ NAME ✨

exynos5_dmc_start_perf_events — the function that sets up and starts the performance event counters. that's it, that's the vibe. setup + start, both, together, slay 💅

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🎀 SYNOPSIS 🎀

void exynos5_dmc_start_perf_events (struct exynos5_dmc *dmc , u32
beg_value );

ngl the signature is giving "small function, big responsibility" and honestly? iconic.

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🦋 ARGUMENTS 🦋

• dmc — the device whose counters are gonna get checked. like, this is the device, the main character of this whole operation 👑
• beg_value — the initial value for the counter. the starting number. the beginning of the count. periodt 🌸

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🌈 DESCRIPTION 🌈

so here's the whole thing, fr fr: this function enables the counters it needs, enables the interrupts it needs, sets the initial values, and then — drumroll — starts the counters. enabling, interrupt-ing, initial-value-setting, and starting, all in one little void function. it's giving multitasking queen energy ✨🔥

it returns nothing (void) so don't go looking for a return value, bestie, there isn't one 🙈

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🌟 SEE ALSO 🌟

the whole friend group, okay, the entire squad of (9) pages plus the source file they all live in:

• Kernel file ./drivers/memory/samsung/exynos5422-dmc.c — the actual home base of all this 🏠
• 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_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_status(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)

like I said. the whole squad. no cap 💯

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and that's the page, bestie 🎀 this little gem lives over in ./drivers/memory/samsung, it's dated October 2026, and it goes by exynos5_dmc..._perf_events(9) — go read it, it ate 💅✨