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author | Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
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committer | Maxime Ripard <mripard@kernel.org> | 2019-10-03 09:59:29 +0200 |
commit | 77fdaa091d79c87323a9f3912a25f73e02ea2a01 (patch) | |
tree | 0e47e2d3c4a966277dbaec075f4685187fdae482 /drivers/char/tpm/tpm_ftpm_tee.h | |
parent | drm/omap: fix max fclk divider for omap36xx (diff) | |
parent | Linux 5.4-rc1 (diff) | |
download | linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.tar.xz linux-dev-77fdaa091d79c87323a9f3912a25f73e02ea2a01.zip |
Merge drm/drm-fixes into drm-misc-fixes
We haven't backmerged for a while, let's start the -rc period by pulling
rc1.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'drivers/char/tpm/tpm_ftpm_tee.h')
-rw-r--r-- | drivers/char/tpm/tpm_ftpm_tee.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_ftpm_tee.h b/drivers/char/tpm/tpm_ftpm_tee.h new file mode 100644 index 000000000000..f98daa7bf68c --- /dev/null +++ b/drivers/char/tpm/tpm_ftpm_tee.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) Microsoft Corporation + */ + +#ifndef __TPM_FTPM_TEE_H__ +#define __TPM_FTPM_TEE_H__ + +#include <linux/tee_drv.h> +#include <linux/tpm.h> +#include <linux/uuid.h> + +/* The TAFs ID implemented in this TA */ +#define FTPM_OPTEE_TA_SUBMIT_COMMAND (0) +#define FTPM_OPTEE_TA_EMULATE_PPI (1) + +/* max. buffer size supported by fTPM */ +#define MAX_COMMAND_SIZE 4096 +#define MAX_RESPONSE_SIZE 4096 + +/** + * struct ftpm_tee_private - fTPM's private data + * @chip: struct tpm_chip instance registered with tpm framework. + * @state: internal state + * @session: fTPM TA session identifier. + * @resp_len: cached response buffer length. + * @resp_buf: cached response buffer. + * @ctx: TEE context handler. + * @shm: Memory pool shared with fTPM TA in TEE. + */ +struct ftpm_tee_private { + struct tpm_chip *chip; + u32 session; + size_t resp_len; + u8 resp_buf[MAX_RESPONSE_SIZE]; + struct tee_context *ctx; + struct tee_shm *shm; +}; + +#endif /* __TPM_FTPM_TEE_H__ */ |