From e7b05d95cc1bfa1e61557358d936ebb33b0ae4be Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Tue, 2 May 2023 09:38:51 -0700 Subject: drm/i915/mtl: Define GSC Proxy component interface GSC Proxy component is used for communication between the Intel graphics driver and MEI driver. Cc: Alan Previn Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Daniele Ceraolo Spurio Acked-by: Greg Kroah-Hartman Reviewed-by: Alan Previn Link: https://patchwork.freedesktop.org/patch/msgid/20230502163854.317653-2-daniele.ceraolospurio@intel.com --- include/drm/i915_component.h | 3 +- include/drm/i915_gsc_proxy_mei_interface.h | 53 ++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 1 deletion(-) create mode 100644 include/drm/i915_gsc_proxy_mei_interface.h (limited to 'include/drm') 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..9462341d3ae1 --- /dev/null +++ b/include/drm/i915_gsc_proxy_mei_interface.h @@ -0,0 +1,53 @@ +/* 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 + +struct device; +struct module; + +/** + * struct i915_gsc_proxy_component_ops - ops for GSC Proxy services. + * @owner: Module providing the ops + * @send: sends a proxy message from GSC FW to ME FW + * @recv: receives a proxy message for GSC FW from ME FW + */ +struct i915_gsc_proxy_component_ops { + struct module *owner; + + /** + * send - Sends a proxy message to ME FW. + * @dev: device struct corresponding to the mei device + * @buf: message buffer to send + * @size: size of the message + * Return: bytes sent on success, negative errno value on failure + */ + int (*send)(struct device *dev, const void *buf, size_t size); + + /** + * recv - Receives a proxy message from ME FW. + * @dev: device struct corresponding to the mei device + * @buf: message buffer to contain the received message + * @size: size of the buffer + * Return: bytes received on success, negative errno value on failure + */ + 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_ */ -- cgit v1.2.3