RE: [PATCH 4/4] powerpc/mpc8548: Add workaround for erratum NMG_SRIO135

2012-03-06 Thread David Laight
> Issue: > Applications using lwarx/stwcx instructions in the core to > compete for a software lock or semaphore with a device on > RapidIO using read atomic set, clr, inc, or dec in a similar > manner may falsely result in both masters seeing the lock > as "available". This could result in data

[PATCH 4/4] powerpc/mpc8548: Add workaround for erratum NMG_SRIO135

2012-03-06 Thread Zhao Chenhui
From: chenhui zhao Issue: Applications using lwarx/stwcx instructions in the core to compete for a software lock or semaphore with a device on RapidIO using read atomic set, clr, inc, or dec in a similar manner may falsely result in both masters seeing the lock as "available". This could result i