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Commit 34a18d6f authored by Len Brown's avatar Len Brown
Browse files

ACPI: delete unused c-state promotion/demotion data strucutures 



These were used before cpuidle by the native ACPI idle driver,
which tracked promotion and demotion between states.

The code was referenced by CONFIG_ACPI_PROCFS
for /proc/acpi/processor/*/power,
but as we no longer do promotion/demotion, that
reference has been a NOP since the transition.

Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent d6bd535d

drivers/acpi/processor_idle.c

+3 −13
Original line number Diff line number Diff line
@@ -727,18 +727,8 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) 
			break;

		}



		if (pr->power.states[i].promotion.state)

			seq_printf(seq, "promotion[C%zd] ",

				   (pr->power.states[i].promotion.state -

				    pr->power.states));

		else

		seq_puts(seq, "promotion[--] ");



		if (pr->power.states[i].demotion.state)

			seq_printf(seq, "demotion[C%zd] ",

				   (pr->power.states[i].demotion.state -

				    pr->power.states));

		else

		seq_puts(seq, "demotion[--] ");



		seq_printf(seq, "latency[%03d] usage[%08d] duration[%020llu]\n",

include/acpi/processor.h

+0 −13
Original line number Diff line number Diff line
@@ -52,17 +52,6 @@ struct acpi_power_register { 
	u64 address;

} __attribute__ ((packed));



struct acpi_processor_cx_policy {

	u32 count;

	struct acpi_processor_cx *state;

	struct {

		u32 time;

		u32 ticks;

		u32 count;

		u32 bm;

	} threshold;

};



struct acpi_processor_cx {

	u8 valid;

	u8 type;
@@ -74,8 +63,6 @@ struct acpi_processor_cx { 
	u32 power;

	u32 usage;

	u64 time;

	struct acpi_processor_cx_policy promotion;

	struct acpi_processor_cx_policy demotion;

	char desc[ACPI_CX_DESC_LEN];

};