diff options
| author |   Vaibhav Jain <vaibhav@linux.vnet.ibm.com> | 2017-09-04 14:18:25 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-10-03 16:03:46 +1100 |
| commit | 8512bffd6226fea259f94fd23fc3b62ffe64baa1 (patch) | |
| tree | 4f693a292dcdde4fe38f786a96b33eccfb2c92f5 /drivers/misc/cxl/native.c | |
| parent | cxl: Enable global TLBIs for cxl contexts (diff) | |
| download | linux-dev-8512bffd6226fea259f94fd23fc3b62ffe64baa1.tar.xz linux-dev-8512bffd6226fea259f94fd23fc3b62ffe64baa1.zip | |
cxl: Set the valid bit in PE for dedicated mode
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 <vaibhav@linux.vnet.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/native.c')
| -rw-r--r-- | drivers/misc/cxl/native.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index 4a82c313cf71..75df74d59527 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -897,6 +897,14 @@ 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); + /* + * Ideally we should do a wmb() here to make sure the changes to the + * PE are visible to the card before we call afu_enable. + * On ppc64 though all mmios are preceded by a 'sync' instruction hence + * we dont dont need one here. + */ + result = cxl_ops->afu_reset(afu); if (result) return result; |