On 10/17/2016 04:35 PM, Stephen Warren wrote:
From: Stephen Warren swarren@nvidia.com
SoC-specific logic may be required for all forms of cache-wide operations; invalidate and flush of both dcache and icache (note that only 3 of the 4 possible combinations make sense, since the icache never contains dirty lines). This patch adds an optional hook for all implemented cache-wide operations, and renames the one existing hook to better represent exactly which operation it is implementing. A dummy no-op implementation of each hook is provided. These dummy implementations are moved into C code, since there's no need to implement them in assembly.
Stephen,
Moving this function to C may pose an issue. I had a debug a couple of years ago that calling a C function put the stack into cache after flushing L1/L2. That's why I used asm function to flush L3.
York