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-rw-r--r--arch/powerpc/platforms/pseries/setup.c34
1 files changed, 14 insertions, 20 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8e639d7cbda7..c737d554571a 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -39,7 +39,6 @@
39#include <linux/irq.h> 39#include <linux/irq.h>
40#include <linux/seq_file.h> 40#include <linux/seq_file.h>
41#include <linux/root_dev.h> 41#include <linux/root_dev.h>
42#include <linux/cpuidle.h>
43#include <linux/of.h> 42#include <linux/of.h>
44#include <linux/kexec.h> 43#include <linux/kexec.h>
45 44
@@ -356,29 +355,24 @@ early_initcall(alloc_dispatch_log_kmem_cache);
356 355
357static void pseries_lpar_idle(void) 356static void pseries_lpar_idle(void)
358{ 357{
359 /* This would call on the cpuidle framework, and the back-end pseries 358 /*
360 * driver to go to idle states 359 * Default handler to go into low thread priority and possibly
360 * low power mode by cedeing processor to hypervisor
361 */ 361 */
362 if (cpuidle_idle_call()) {
363 /* On error, execute default handler
364 * to go into low thread priority and possibly
365 * low power mode by cedeing processor to hypervisor
366 */
367 362
368 /* Indicate to hypervisor that we are idle. */ 363 /* Indicate to hypervisor that we are idle. */
369 get_lppaca()->idle = 1; 364 get_lppaca()->idle = 1;
370 365
371 /* 366 /*
372 * Yield the processor to the hypervisor. We return if 367 * Yield the processor to the hypervisor. We return if
373 * an external interrupt occurs (which are driven prior 368 * an external interrupt occurs (which are driven prior
374 * to returning here) or if a prod occurs from another 369 * to returning here) or if a prod occurs from another
375 * processor. When returning here, external interrupts 370 * processor. When returning here, external interrupts
376 * are enabled. 371 * are enabled.
377 */ 372 */
378 cede_processor(); 373 cede_processor();
379 374
380 get_lppaca()->idle = 0; 375 get_lppaca()->idle = 0;
381 }
382} 376}
383 377
384/* 378/*