TPM DEVICE DRIVER: for-next-tpm-7.3

The following changes since commit 66498c75b4f8017f62d720d9b59675bdf3abce91:

Merge tag 'dmaengine-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine (2026-08-24 12:21:15 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git tags/for-next-tpm-7.3

for you to fetch changes up to 55ba91d4c54ab31ee8387bae40e799de467f8269:

tpm-buf: Add TPM buffer support header for standalone reuse (2026-08-25 18:13:37 +0300)

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Hi,

I had to think a lot how to put this into few paragraphs. I hope this will makes sense to you and I'm not too confusing.

The bulk of this pull request are Ross Philipson's TPM enablers for the Trenchboot patch series. The commits expose TPM constants, and decouple and improve robustness of tpm_buf a bit in order to implement a minimal early TPM driver.

Early boot code will call either SKINIT on AMD or GETSEC[SENTER] on Intel before jumping into kernel's entry point. They re-initalize TPM PCRs but leave up to the early boot code measure initrd, boot_params and Trenchboot associated metadata.

The motivation here is just that we would want in future iterations of the series put our full focus to the x86 part of the review, and call it a day as per TPM changes. Further, even if Trenchboot turned out to be empty lottery the worst possible outcome for TPM driver is that things get cleaned up a bit.

BR, Jarkko

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Alec Brown (1):
tpm: Remove main TPM header from TPM event log header

Jarkko Sakkinen (3):
tpm-buf: Merge TPM_BUF_BOUNDARY_ERROR and TPM_BUF_OVERFLOW
tpm-buf: Remove chip parameter from tpm_buf_append_handle()
tpm-buf: Memory-safe allocations

Karl Mehltretter (1):
tpm: atmel: depend on X86

Li Jun (1):
tpm: tpm_tis_spi: fix nodef CR50 tpm_tis_spi_resume is null

Myeonghun Pak (1):
tpm: tpm_i2c_nuvoton: disable IRQ on wait timeout

Pan Chuang (1):
tpm: Remove redundant dev_err()

Ross Philipson (6):
tpm: Initial step to reorganize TPM public headers
tpm: Move TPM1 specific definitions to the command header
tpm: Move TPM2 specific definitions to the command header
tpm: Move TPM common base definitions to the command header
tpm: Move platform specific definitions to the new PTP header
tpm-buf: Add TPM buffer support header for standalone reuse

Ruoyu Wang (2):
tpm: st33zp24: Return zero on status read failure
tpm: st33zp24: Validate locality read result

 drivers/char/tpm/Kconfig                  |   3 +-
 drivers/char/tpm/st33zp24/st33zp24.c      |  13 +-
 drivers/char/tpm/tpm-buf.c                | 145 +++++----
 drivers/char/tpm/tpm-sysfs.c              |  26 +-
 drivers/char/tpm/tpm.h                    | 180 -----------
 drivers/char/tpm/tpm1-cmd.c               | 180 +++++------
 drivers/char/tpm/tpm2-cmd.c               | 321 ++++++++----------
 drivers/char/tpm/tpm2-sessions.c          | 164 +++++-----
 drivers/char/tpm/tpm2-space.c             |  57 ++--
 drivers/char/tpm/tpm_i2c_nuvoton.c        |   8 +-
 drivers/char/tpm/tpm_tis_core.h           |  64 +---
 drivers/char/tpm/tpm_tis_i2c_cr50.c       |   4 +-
 drivers/char/tpm/tpm_tis_spi.h            |   8 +-
 drivers/char/tpm/tpm_vtpm_proxy.c         |  30 +-
 include/keys/trusted_tpm.h                |   1 -
 include/linux/tpm.h                       | 230 +------------
 include/linux/tpm_buf.h                   |  60 ++++
 include/linux/tpm_command.h               | 518 +++++++++++++++++++++++++++++-
 include/linux/tpm_eventlog.h              |   2 +-
 include/linux/tpm_ptp.h                   | 133 ++++++++
 security/keys/trusted-keys/trusted_tpm1.c |  45 ++-
 security/keys/trusted-keys/trusted_tpm2.c | 166 +++++-----
 22 files changed, 1255 insertions(+), 1103 deletions(-)
 create mode 100644 include/linux/tpm_buf.h
 create mode 100644 include/linux/tpm_ptp.h