Re: [PATCH v2 00/19] PCI/TSM: TEE I/O infrastructure

[<dan.j.williams@intel.com>]

Aneesh Kumar K.V wrote:
> Dan Williams <dan.j.williams@intel.com> writes:
> 
> ....
> 
> To support devices without  IDE/DOE support we need something similar. 
> 
> modified   drivers/pci/tsm/core.c
> @@ -1236,12 +1236,14 @@ int pci_tsm_pf0_constructor(struct pci_dev *pdev, struct pci_tsm_pf0 *tsm,
>  			    struct tsm_dev *tsm_dev)
>  {
>  	mutex_init(&tsm->lock);
> -	tsm->doe_mb = pci_find_doe_mailbox(pdev, PCI_VENDOR_ID_PCI_SIG,
> -					   PCI_DOE_FEATURE_CMA);
> -	if (!tsm->doe_mb) {
> -		pci_warn(pdev, "TSM init failure, no CMA mailbox\n");
> -		return -ENODEV;
> -	}
> +
> +       /*
> +        * Note, low-level TSM driver responsible for determining if it wants to
> +        * proceed with a device that has no DOE mailbox. TSM may have an
> +        * alternate method for coordinating TDISP.
> +        */
> +       if (!tsm->doe_mb)
> +               pci_dbg(pdev, "no CMA mailbox\n");

A patch like patch can go upstream now. Care to send?