[POWERPC] cell: add shadow registers for pmd_reg

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Many of the registers in the performance monitoring unit are write-only.
We need to save a "shadow" copy when we write to those registers so we
can retrieve the values if we need them later.

The new cbe_pmd_shadow_regs structure is added to the cbe_regs_map structure
so we have the appropriate per-node copies of these shadow values.

Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

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Kevin Corry 2006-10-24 18:31:21 +02:00 • committed by Paul Mackerras

parent 22b8c9f5ba

commit bffd4927ba

2 changed files with 52 additions and 0 deletions

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17

arch/powerpc/platforms/cell/cbe_regs.c

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35

arch/powerpc/platforms/cell/cbe_regs.h

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