From: Alexander Usyskin <alexander.usyskin@intel.com>

GSC Proxy component is used for communication between the
Intel graphics driver and MEI driver.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
V2: This patch was missing in the first series.

 MAINTAINERS                                |  1 +
 include/drm/i915_component.h               |  3 +-
 include/drm/i915_gsc_proxy_mei_interface.h | 36 ++++++++++++++++++++++
 3 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 include/drm/i915_gsc_proxy_mei_interface.h

diff --git a/MAINTAINERS b/MAINTAINERS
index c81bbb771678..2c432b4d8506 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10570,6 +10570,7 @@ S:	Supported
 F:	Documentation/driver-api/mei/*
 F:	drivers/misc/mei/
 F:	drivers/watchdog/mei_wdt.c
+F:	include/drm/i915_gsc_proxy_mei_interface.h
 F:	include/linux/mei_aux.h
 F:	include/linux/mei_cl_bus.h
 F:	include/uapi/linux/mei.h
diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
index c1e2a43d2d1e..56a84ee1c64c 100644
--- a/include/drm/i915_component.h
+++ b/include/drm/i915_component.h
@@ -29,7 +29,8 @@
 enum i915_component_type {
 	I915_COMPONENT_AUDIO = 1,
 	I915_COMPONENT_HDCP,
-	I915_COMPONENT_PXP
+	I915_COMPONENT_PXP,
+	I915_COMPONENT_GSC_PROXY,
 };
 
 /* MAX_PORT is the number of port
diff --git a/include/drm/i915_gsc_proxy_mei_interface.h b/include/drm/i915_gsc_proxy_mei_interface.h
new file mode 100644
index 000000000000..e817bb316d5c
--- /dev/null
+++ b/include/drm/i915_gsc_proxy_mei_interface.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (c) 2022-2023 Intel Corporation
+ */
+
+#ifndef _I915_GSC_PROXY_MEI_INTERFACE_H_
+#define _I915_GSC_PROXY_MEI_INTERFACE_H_
+
+#include <linux/mutex.h>
+#include <linux/device.h>
+
+/**
+ * struct i915_gsc_proxy_component_ops - ops for GSC Proxy services.
+ * @owner: Module providing the ops
+ * @send: sends data through GSC proxy
+ * @recv: receives data through GSC proxy
+ */
+struct i915_gsc_proxy_component_ops {
+	struct module *owner;
+
+	int (*send)(struct device *dev, const void *buf, size_t size);
+	int (*recv)(struct device *dev, void *buf, size_t size);
+};
+
+/**
+ * struct i915_gsc_proxy_component - Used for communication between i915 and
+ * MEI drivers for GSC proxy services
+ * @mei_dev: device that provide the GSC proxy service.
+ * @ops: Ops implemented by GSC proxy driver, used by i915 driver.
+ */
+struct i915_gsc_proxy_component {
+	struct device *mei_dev;
+	const struct i915_gsc_proxy_component_ops *ops;
+};
+
+#endif /* _I915_GSC_PROXY_MEI_INTERFACE_H_ */
-- 
2.39.1

On Sun, Feb 05, 2023 at 08:11:31PM +0200, Tomas Winkler wrote:
> From: Alexander Usyskin <alexander.usyskin@intel.com>
> 
> GSC Proxy component is used for communication between the
> Intel graphics driver and MEI driver.
> 
> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
> ---
> V2: This patch was missing in the first series.
> 
>  MAINTAINERS                                |  1 +
>  include/drm/i915_component.h               |  3 +-
>  include/drm/i915_gsc_proxy_mei_interface.h | 36 ++++++++++++++++++++++
>  3 files changed, 39 insertions(+), 1 deletion(-)
>  create mode 100644 include/drm/i915_gsc_proxy_mei_interface.h


Why do you add .h files in include/drm/ yet only use them in
drivers/mei/ ?

Shouldn't they just live in the mei subdir?  Especially given that you
also want to maintain them through the mei subsystem as per this change:

> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index c81bbb771678..2c432b4d8506 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10570,6 +10570,7 @@ S:	Supported
>  F:	Documentation/driver-api/mei/*
>  F:	drivers/misc/mei/
>  F:	drivers/watchdog/mei_wdt.c
> +F:	include/drm/i915_gsc_proxy_mei_interface.h
>  F:	include/linux/mei_aux.h
>  F:	include/linux/mei_cl_bus.h
>  F:	include/uapi/linux/mei.h

And I would need some i915 maintainer acks before I could take this in
my tree.

thanks,

greg k-h

> On Sun, Feb 05, 2023 at 08:11:31PM +0200, Tomas Winkler wrote:
> > From: Alexander Usyskin <alexander.usyskin@intel.com>
> >
> > GSC Proxy component is used for communication between the Intel
> > graphics driver and MEI driver.
> >
> > Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
> > Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
> > ---
> > V2: This patch was missing in the first series.
> >
> >  MAINTAINERS                                |  1 +
> >  include/drm/i915_component.h               |  3 +-
> >  include/drm/i915_gsc_proxy_mei_interface.h | 36
> > ++++++++++++++++++++++
> >  3 files changed, 39 insertions(+), 1 deletion(-)  create mode 100644
> > include/drm/i915_gsc_proxy_mei_interface.h
> 
> 
> Why do you add .h files in include/drm/ yet only use them in drivers/mei/ ?
> 
> Shouldn't they just live in the mei subdir?  Especially given that you also want
> to maintain them through the mei subsystem as per this change:

Rigth, will drop, this part. 

> 
> >
> > diff --git a/MAINTAINERS b/MAINTAINERS index
> > c81bbb771678..2c432b4d8506 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -10570,6 +10570,7 @@ S:	Supported
> >  F:	Documentation/driver-api/mei/*
> >  F:	drivers/misc/mei/
> >  F:	drivers/watchdog/mei_wdt.c
> > +F:	include/drm/i915_gsc_proxy_mei_interface.h
> >  F:	include/linux/mei_aux.h
> >  F:	include/linux/mei_cl_bus.h
> >  F:	include/uapi/linux/mei.h
> 
> And I would need some i915 maintainer acks before I could take this in my
> tree.

Okay

> 
> thanks,
> 
> greg k-h