1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright �� 2023 Intel Corporation 4 */ 5 6#ifndef _XE_GSC_TYPES_H_ 7#define _XE_GSC_TYPES_H_ 8 9#include <linux/iosys-map.h> 10#include <linux/mutex.h> 11#include <linux/spinlock.h> 12#include <linux/types.h> 13#include <linux/workqueue.h> 14 15#include "xe_uc_fw_types.h" 16 17struct xe_bo; 18struct xe_exec_queue; 19struct i915_gsc_proxy_component; 20 21/** 22 * struct xe_gsc - GSC 23 */ 24struct xe_gsc { 25 /** @fw: Generic uC firmware management */ 26 struct xe_uc_fw fw; 27 28 /** @security_version: SVN found in the fetched blob */ 29 u32 security_version; 30 31 /** @private: Private data for use by the GSC FW */ 32 struct xe_bo *private; 33 34 /** @q: Default queue used for submissions to GSC FW */ 35 struct xe_exec_queue *q; 36 37 /** @wq: workqueue to handle jobs for delayed load and proxy handling */ 38 struct workqueue_struct *wq; 39 40 /** @work: delayed load and proxy handling work */ 41 struct work_struct work; 42 43 /** @lock: protects access to the work_actions mask */ 44 spinlock_t lock; 45 46 /** @work_actions: mask of actions to be performed in the work */ 47 u32 work_actions; 48#define GSC_ACTION_FW_LOAD BIT(0) 49#define GSC_ACTION_SW_PROXY BIT(1) 50 51 /** @proxy: sub-structure containing the SW proxy-related variables */ 52 struct { 53 /** @proxy.component: struct for communication with mei component */ 54 struct i915_gsc_proxy_component *component; 55 /** @proxy.mutex: protects the component binding and usage */ 56 struct mutex mutex; 57 /** @proxy.component_added: whether the component has been added */ 58 bool component_added; 59 /** @proxy.bo: object to store message to and from the GSC */ 60 struct xe_bo *bo; 61 /** @proxy.to_gsc: map of the memory used to send messages to the GSC */ 62 struct iosys_map to_gsc; 63 /** @proxy.from_gsc: map of the memory used to recv messages from the GSC */ 64 struct iosys_map from_gsc; 65 /** @proxy.to_csme: pointer to the memory used to send messages to CSME */ 66 void *to_csme; 67 /** @proxy.from_csme: pointer to the memory used to recv messages from CSME */ 68 void *from_csme; 69 } proxy; 70}; 71 72#endif 73