Re: [PATCH] cxl: Set the valid bit in PE for dedicated mode
From: christophe lombard <hidden>
Date: 2017-08-28 08:58:19
Le 28/08/2017 à 06:15, Vaibhav Jain a écrit :
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.
Acked-by: Christophe Lombard <redacted>
quoted hunk ↗ jump to hunk
Signed-off-by: Vaibhav Jain <redacted> --- 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 */ + smp_wmb(); + result = cxl_ops->afu_reset(afu); if (result) return result;