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[Bug 1001658] New: HAL_DCACHE_FLUSH macro for mpc8xx broken
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: unassigned at bugs dot ecos dot sourceware dot org
- Date: Mon, 20 Aug 2012 12:24:51 +0100
- Subject: [Bug 1001658] New: HAL_DCACHE_FLUSH macro for mpc8xx broken
- Auto-submitted: auto-generated
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Summary: HAL_DCACHE_FLUSH macro for mpc8xx broken
Product: eCos
Version: CVS
Platform: All
OS/Version: PowerPC
Status: UNCONFIRMED
Severity: normal
Priority: low
Component: HAL
AssignedTo: unassigned@bugs.ecos.sourceware.org
ReportedBy: bernd.edlinger@hotmail.de
CC: ecos-bugs@ecos.sourceware.org
Class: Advice Request
Created an attachment (id=1906)
--> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1906)
possible fix, untested.
Hello,
this macros just look wrong, however I have not tested it.
HAL_DCACHE_FLUSH(), HAL_DCACHE_INVALIDATE()
and HAL_DCACHE_STORE(), and a fiew others:
The loop may fail to store the complete range, if
the start is not cache-aligned, for instance:
HAL_DCACHE_FLUSH(0x40000008,16)
flushes only one cache line instead of two.
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