Vaibhav Jain <vaib...@linux.vnet.ibm.com> writes: > Make sure to set the valid-bit in software-state field of the > populated PE. This was earlier missing for dedicated mode AFUs, hence > was causing a PSL freeze when the AFU was activated. > > Signed-off-by: Vaibhav Jain <vaib...@linux.vnet.ibm.com> > --- > drivers/misc/cxl/native.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c > index 4a82c313cf71..0e748c682ee9 100644 > --- a/drivers/misc/cxl/native.c > +++ b/drivers/misc/cxl/native.c > @@ -897,6 +897,10 @@ int cxl_attach_dedicated_process_psl9(struct cxl_context > *ctx, u64 wed, u64 amr) > if (ctx->afu->adapter->native->sl_ops->update_dedicated_ivtes) > afu->adapter->native->sl_ops->update_dedicated_ivtes(ctx); > > + ctx->elem->software_state = cpu_to_be32(CXL_PE_SOFTWARE_STATE_V); > + /* Make sure the changes to the PE are visible to the card */
A barrier orders something vs something else. So what's the something else in this case? Is it the afu_reset() below, what does that actually do? > + smp_wmb(); > + > result = cxl_ops->afu_reset(afu); > if (result) > return result; cheers
