Sebastian Huber 801b5d8032 powerpc: Change interrupt disable implemetation ...

Instead of SPRG0 (= special purpose register 272) use the new global
symbol _PPC_INTERRUPT_DISABLE_MASK to store the interrupt disable mask.
The benefit is that it is now possible to disable interrupts without
further run-time initialization in boot_card().

At least on Freescale e500 cores this leads also to a faster execution
since the mfmsr and mfspr instruction require four cycles to complete.
The instructions to load the mask value can execute while the mfmsr is
in progress.

2014-02-19 09:59:38 +01:00

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src

powerpc: Change interrupt disable implemetation

2014-02-19 09:59:38 +01:00

acinclude.m4

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ACKNOWLEDGEMENTS

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configure.ac

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Makefile.am

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TOOL_TARGETS

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