Keep /proc/acpi/processor/CPU*/power around for a while as powertop depends
on it. It will be marked deprecated and removed in future. powertop can use
cpuidle interfaces instead.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Index: linux-2.6.22-rc-mm/drivers/acpi/processor_idle.c
===================================================================
--- linux-2.6.22-rc-mm.orig/drivers/acpi/processor_idle.c 2007-06-01 16:17:40.000000000 -0700
+++ linux-2.6.22-rc-mm/drivers/acpi/processor_idle.c 2007-06-01 17:20:57.000000000 -0700
@@ -792,7 +792,7 @@
* @t1: the start time
* @t2: the end time
*/
-static inline u32 ticks_elapsed(u32 t1, u32 t2)
+static inline u32 ticks_elapsed_in_us(u32 t1, u32 t2)
{
if (t2 >= t1)
return PM_TIMER_TICKS_TO_US(t2 - t1);
@@ -802,6 +802,16 @@
return PM_TIMER_TICKS_TO_US((0xFFFFFFFF - t1) + t2);
}
+static inline u32 ticks_elapsed(u32 t1, u32 t2)
+{
+ if (t2 >= t1)
+ return (t2 - t1);
+ else if (!(acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER))
+ return (((0x00FFFFFF - t1) + t2) & 0x00FFFFFF);
+ else
+ return ((0xFFFFFFFF - t1) + t2);
+}
+
/**
* acpi_idle_update_bm_rld - updates the BM_RLD bit depending on target state
* @pr: the processor
@@ -925,7 +935,8 @@
cx->usage++;
acpi_state_timer_broadcast(pr, cx, 0);
- return ticks_elapsed(t1, t2);
+ cx->time += ticks_elapsed(t1, t2);
+ return ticks_elapsed_in_us(t1, t2);
}
static int c3_cpu_count;
@@ -1009,7 +1020,8 @@
cx->usage++;
acpi_state_timer_broadcast(pr, cx, 0);
- return ticks_elapsed(t1, t2);
+ cx->time += ticks_elapsed(t1, t2);
+ return ticks_elapsed_in_us(t1, t2);
}
/**
-
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