[Skiboot] [RFC PATCH 0/1] AWAN HACK to flush console

Ryan Grimm grimm at linux.ibm.com
Thu Sep 9 04:39:00 AEST 2021


I encountered an AWAN environment where the tools for reading caches
were broken.  Normally, we'd use this tool to access caches directly for
the inmem console.

We do have a tool that can read the DIMMs so I hacked this up and it
actually worked.

Just sharing b/c it might be useful if we encounter this again.

Does the hack look like it is working as intended?  Do I need to worry
about a sync?

Also, I tried to handle console wrapping with the ugly calculation

(total_cache_lines % (INMEM_CON_LEN / 128)) * 128

but it's difficult to test.

Ryan Grimm (1):
  AWAN CHIP HACK: Flush console buffer to memory

 core/console.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

-- 
2.25.1



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