On Mon, Mar 29, 2021 at 03:55:03PM +0200, Michal Wajdeczko wrote:
>
>
> On 29.03.2021 00:56, Daniele Ceraolo Spurio wrote:
> > This will be used for communication between the i915 driver and the mei
> > one. Defining it in a stand-alone patch to avoid circualr dependedencies
>
> typos
>
> > between the patches modifying the 2 drivers.
> >
> > Split out from an original patch from Huang, Sean Z
> >
> > v2: rename the component struct (Rodrigo)
> >
> > Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
> > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> > Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> > ---
> > include/drm/i915_component.h | 1 +
> > include/drm/i915_pxp_tee_interface.h | 45 ++++++++++++++++++++++++++++
> > 2 files changed, 46 insertions(+)
> > create mode 100644 include/drm/i915_pxp_tee_interface.h
> >
> > diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
> > index 55c3b123581b..c1e2a43d2d1e 100644
> > --- a/include/drm/i915_component.h
> > +++ b/include/drm/i915_component.h
> > @@ -29,6 +29,7 @@
> > enum i915_component_type {
> > I915_COMPONENT_AUDIO = 1,
> > I915_COMPONENT_HDCP,
> > + I915_COMPONENT_PXP
> > };
> >
> > /* MAX_PORT is the number of port
> > diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h
> > new file mode 100644
> > index 000000000000..09b8389152af
> > --- /dev/null
> > +++ b/include/drm/i915_pxp_tee_interface.h
> > @@ -0,0 +1,45 @@
> > +/* SPDX-License-Identifier: MIT */
> > +/*
> > + * Copyright © 2020 Intel Corporation
> > + *
> > + * Authors:
> > + * Vitaly Lubart <vitaly.lubart@xxxxxxxxx>
>
> shouldn't be at least on cc: ?
yeap, good idea...
let's start cc'ing now...
>
> > + */
> > +
> > +#ifndef _I915_PXP_TEE_INTERFACE_H_
> > +#define _I915_PXP_TEE_INTERFACE_H_
> > +
> > +#include <linux/mutex.h>
> > +#include <linux/device.h>
> > +
> > +/**
> > + * struct i915_pxp_component_ops - ops for PXP services.
> > + * @owner: Module providing the ops
> > + * @send: sends data to PXP
> > + * @receive: receives data from PXP
> > + */
> > +struct i915_pxp_component_ops {
> > + /**
> > + * @owner: owner of the module provding the ops
>
> typo
>
> > + */
> > + struct module *owner;
>
> hmm, usually ops structs have only function pointers, why do we need
> owner here ? and are you sure is it a right place if still needed ?
it is indeed not used here and for this series it could be removed.
I haven't considered this earlier because this came from TEE directly,
but for now, let's remove if not used.
>
> > +
> > + int (*send)(struct device *dev, const void *message, size_t size);
> > + int (*recv)(struct device *dev, void *buffer, size_t size);
> > +};
> > +
> > +/**
> > + * struct i915_pxp_component - Used for communication between i915 and TEE
> > + * drivers for the PXP services
> > + * @tee_dev: device that provide the PXP service from TEE Bus.
> > + * @pxp_ops: Ops implemented by TEE driver, used by i915 driver.
> > + */
> > +struct i915_pxp_component {
> > + struct device *tee_dev;
> > + const struct i915_pxp_component_ops *ops;
> > +
> > + /* To protect the above members. */
> > + struct mutex mutex;
> > +};
> > +
> > +#endif /* _I915_TEE_PXP_INTERFACE_H_ */
> >
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