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powerpc: Context switch the new EBB SPRs

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This context switches the new Event Based Branching (EBB) SPRs.  The three new
SPRs are:
  - Event Based Branch Handler Register (EBBHR)
  - Event Based Branch Return Register (EBBRR)
  - Branch Event Status and Control Register (BESCR)

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Ellerman 2013-04-30 20:17:04 +00:00 • committed by Benjamin Herrenschmidt
parent 1ddf499e1a
commit 9353374b8e
4 changed files with 25 additions and 0 deletions
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3
arch/powerpc/include/asm/processor.h
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@ -281,6 +281,9 @@ struct thread_struct {
#endif
#ifdef CONFIG_PPC_BOOK3S_64
unsigned long tar;
unsigned long ebbrr;
unsigned long ebbhr;
unsigned long bescr;
#endif
};