Commit 6c188829 authored Aug 18, 2009 by Kumar Gala Committed by Benjamin Herrenschmidt Aug 28, 2009

powerpc/book3e-64: Wait til generic_calibrate_decr to enable decrementer



Match what we do on 32-bit Book-E processors and enable the decrementer
in generic_calibrate_decr.  We need to make sure we disable the
decrementer early in boot since we currently use lazy (soft) interrupt
on 64-bit Book-E and possible get a decrementer exception before we
are ready for it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent f45c4486

arch/powerpc/kernel/exceptions-64e.S

+4 −2

Original line number	Original line	Diff line number	Diff line
	@@ -774,9 +774,11 @@ _STATIC(init_thread_book3e)
	/* Make sure interrupts are off */		/* Make sure interrupts are off */
	wrteei 0		wrteei 0

	/* disable watchdog and FIT and enable DEC interrupts */		/* disable all timers and clear out status */
	lis r3,TCR_DIE@h		li r3,0
	mtspr SPRN_TCR,r3		mtspr SPRN_TCR,r3
			mfspr r3,SPRN_TSR
			mtspr SPRN_TSR,r3

	blr		blr