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authorRalf Baechle <ralf@linux-mips.org>2009-02-28 09:44:28 +0000
committerRalf Baechle <ralf@linux-mips.org>2009-06-08 16:57:51 +0100
commit5636919b5c909fee54a6ef5226475ecae012ad02 (patch)
treec77fa89c56ee2d493fb82117ab5dbc5b28a8deeb /Documentation/irqflags-tracing.txt
parent3a553147eaad5d4de90ab1f695aa13ddbea684ec (diff)
MIPS: Outline udelay and fix a few issues.
Outlining fixes the issue were on certain CPUs such as the R10000 family the delay loop would need an extra cycle if it overlaps a cacheline boundary. The rewrite also fixes build errors with GCC 4.4 which was changed in way incompatible with the kernel's inline assembly. Relying on pure C for computation of the delay value removes the need for explicit. The price we pay is a slight slowdown of the computation - to be fixed on another day. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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