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[v3,0/9] Export platform features from ccp driver

Message ID 20230303165050.2918-1-mario.limonciello@amd.com
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Series Export platform features from ccp driver | expand

Message

Mario Limonciello March 3, 2023, 4:50 p.m. UTC 
The i2c-designware-amdpsp driver communicates with a platform
features mailbox provided by the PSP.  The address used for
communication is discovered via a non-architecturally
guaranteed mechanism.

To better scale, export a feature for communication with platform
features directly from the ccp driver.

v2->v3:
 * Split new ACPI ID to own patch
 * Squash doorbell offsets into doorbell patch
 * Fix all feedback from v2 (see individual patches for details)
Mario Limonciello (9):
  crypto: ccp: Drop TEE support for IRQ handler
  crypto: ccp: Add a header for multiple drivers to use `__psp_pa`
  crypto: ccp: Move some PSP mailbox bit definitions into common header
  crypto: ccp: Add support for an interface for platform features
  crypto: ccp: Enable platform access interface on client PSP parts
  i2c: designware: Use PCI PSP driver for communication
  crypto: ccp: Add support for ringing a platform doorbell
  i2c: designware: Add doorbell support for Skyrim
  i2c: designware: Add support for AMDI0020 ACPI ID

 arch/x86/kvm/svm/sev.c                      |   1 +
 drivers/crypto/ccp/Makefile                 |   3 +-
 drivers/crypto/ccp/platform-access.c        | 218 ++++++++++++++++++++
 drivers/crypto/ccp/platform-access.h        |  35 ++++
 drivers/crypto/ccp/psp-dev.c                |  32 +--
 drivers/crypto/ccp/psp-dev.h                |  11 +-
 drivers/crypto/ccp/sev-dev.c                |  16 +-
 drivers/crypto/ccp/sev-dev.h                |   2 +-
 drivers/crypto/ccp/sp-dev.h                 |  10 +
 drivers/crypto/ccp/sp-pci.c                 |   9 +
 drivers/crypto/ccp/tee-dev.c                |  17 +-
 drivers/i2c/busses/Kconfig                  |   2 +-
 drivers/i2c/busses/i2c-designware-amdpsp.c  | 179 +++-------------
 drivers/i2c/busses/i2c-designware-core.h    |   1 -
 drivers/i2c/busses/i2c-designware-platdrv.c |   2 +-
 drivers/tee/amdtee/call.c                   |   2 +-
 drivers/tee/amdtee/shm_pool.c               |   2 +-
 include/linux/psp-platform-access.h         |  65 ++++++
 include/linux/psp-sev.h                     |   8 -
 include/linux/psp.h                         |  29 +++
 20 files changed, 438 insertions(+), 206 deletions(-)
 create mode 100644 drivers/crypto/ccp/platform-access.c
 create mode 100644 drivers/crypto/ccp/platform-access.h
 create mode 100644 include/linux/psp-platform-access.h
 create mode 100644 include/linux/psp.h