[v5] cxl: Export AFU error buffer via sysfs
mpe at ellerman.id.au
Fri May 22 12:45:55 AEST 2015
On Thu, 2015-21-05 at 08:05:30 UTC, Vaibhav Jain wrote:
> Export the "AFU Error Buffer" via sysfs attribute (afu_err_buf). AFU
> error buffer is used by the AFU to report application specific
> errors. The contents of this buffer are AFU specific and are intended to
> be interpreted by the application interacting with the afu.
> - Build against pseries le/be configs.
> - Run testing with a special version of memcpy afu on a 'be'
> v4 -> v5
> - Improved documentation in cxl_afu_read_err_buffer function to
> address why I am using '_memcpy_fromio' instead of
> + /*
> + * using '_memcpy_fromio' instead of 'memcpy_fromio' as on powerpc
> + * arch its gauranteed to use 8/4 bytes aligned reads. This may
> + * not be the case with other archs.
> + */
Please just use memcpy_fromio().
Via the definition at:
You'll get the implementation at:
Which because there is no hook defined will use the implementation at:
Which will use:
Which calls _memcpy_fromio() and also checks for EEH errors.
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