Commit:     29641ce165e5f643b48988cb779c6ba97b647503
Parent:     7ee17466b6ac3b63ce87492d080e15e7f144f7d2
Author:     Kevin Corry <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 11 13:49:17 2007 +0100
Committer:  Arnd Bergmann <[EMAIL PROTECTED]>
CommitDate: Wed Dec 19 01:00:01 2007 +0100

    [POWERPC] perfmon2: make pm_interval register read/write
    The pm_interval register in the Cell PMU is read/write, but was implemented 
    the kernel as write-only. Previously, the written value was saved in a 
    copy so calls to cbe_read_pm() could return the value.
    Perfmon2 needs to be able to read the current values of pm_interval, so 
    cbe_read_pm() to read the actual register instead of the "shadow" copy. 
    is currently no code in the kernel that tries to read the pm_interval 
    with cbe_read_pm() (expecting to receive the "shadow" value), so this should
    not break any existing code.
    Signed-off-by: Kevin Corry <[EMAIL PROTECTED]>
    Signed-off-by: Carl Love <[EMAIL PROTECTED]>
    Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]>
 arch/powerpc/platforms/cell/pmu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/platforms/cell/pmu.c 
index 1ed3036..99d688e 100644
--- a/arch/powerpc/platforms/cell/pmu.c
+++ b/arch/powerpc/platforms/cell/pmu.c
@@ -213,7 +213,7 @@ u32 cbe_read_pm(u32 cpu, enum pm_reg_name reg)
        case pm_interval:
-               READ_SHADOW_REG(val, pm_interval);
+               READ_MMIO_UPPER32(val, pm_interval);
        case pm_start_stop:
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