mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-15 23:25:07 +00:00
c72891256a
The discrete graphics card with GSC firmware using command streamer API hence it requires to enhance pxp module with the new gsc_command() handler. The handler is implemented via mei_pxp_gsc_command() which is just a thin wrapper around mei_cldev_send_gsc_command() Signed-off-by: Vitaly Lubart <vitaly.lubart@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-6-daniele.ceraolospurio@intel.com
47 lines
1.2 KiB
C
47 lines
1.2 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright © 2020 Intel Corporation
|
|
*/
|
|
|
|
#ifndef _I915_PXP_TEE_INTERFACE_H_
|
|
#define _I915_PXP_TEE_INTERFACE_H_
|
|
|
|
#include <linux/mutex.h>
|
|
#include <linux/device.h>
|
|
struct scatterlist;
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
struct module *owner;
|
|
|
|
int (*send)(struct device *dev, const void *message, size_t size);
|
|
int (*recv)(struct device *dev, void *buffer, size_t size);
|
|
ssize_t (*gsc_command)(struct device *dev, u8 client_id, u32 fence_id,
|
|
struct scatterlist *sg_in, size_t total_in_len,
|
|
struct scatterlist *sg_out);
|
|
|
|
};
|
|
|
|
/**
|
|
* 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_ */
|