diff options
Diffstat (limited to 'drivers/crypto/ccp/dbc.h')
| -rw-r--r-- | drivers/crypto/ccp/dbc.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/dbc.h b/drivers/crypto/ccp/dbc.h new file mode 100644 index 000000000000..e0fecbe92eb1 --- /dev/null +++ b/drivers/crypto/ccp/dbc.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * AMD Platform Security Processor (PSP) Dynamic Boost Control support + * + * Copyright (C) 2023 Advanced Micro Devices, Inc. + * + * Author: Mario Limonciello <mario.limonciello@amd.com> + */ + +#ifndef __DBC_H__ +#define __DBC_H__ + +#include <uapi/linux/psp-dbc.h> + +#include <linux/device.h> +#include <linux/miscdevice.h> +#include <linux/psp-platform-access.h> + +#include "psp-dev.h" + +struct psp_dbc_device { + struct device *dev; + struct psp_device *psp; + + union dbc_buffer *mbox; + + struct mutex ioctl_mutex; + + struct miscdevice char_dev; + + /* used to abstract communication path */ + bool use_ext; + u32 header_size; + u32 *payload_size; + u32 *result; + void *payload; +}; + +union dbc_buffer { + struct psp_request pa_req; + struct psp_ext_request ext_req; +}; + +void dbc_dev_destroy(struct psp_device *psp); +int dbc_dev_init(struct psp_device *psp); + +#endif /* __DBC_H */ |