[PATCH v2 0/4] Fixes for PMF and CCP drivers after S4

["Mario Limonciello (AMD)" <superm1@kernel.org>]

Lars Francke reported that the PMF driver fails to work afer S4 with:
  ccp 0000:c3:00.2: tee: command 0x5 timed out, disabling PSP

This is because there is a TA loaded to the TEE environment that
is lost during S4.  The TEE rings need to be reinitialized and the
TA needs to be reloaded.

This series adds those flows to the PMF and CCP drivers.

---
v2:
 * Fixes for potential race conditions in hibernate resume
 * Fix for error handling if tee ring is never destroyed
 * Fixes for dead PSP (which can lead to hangs)
 * Fixes for LKP robot reported issues

Mario Limonciello (AMD) (3):
  crypto: ccp - Declare PSP dead if PSP_CMD_TEE_RING_INIT fails
  crypto: ccp - Send PSP_CMD_TEE_RING_DESTROY when PSP_CMD_TEE_RING_INIT
    fails
  crypto: ccp - Add an S4 restore flow

Shyam Sundar S K (1):
  platform/x86/amd/pmf: Prevent TEE errors after hibernate

 drivers/crypto/ccp/sp-dev.c           | 13 ++++++
 drivers/crypto/ccp/sp-dev.h           |  1 +
 drivers/crypto/ccp/sp-pci.c           | 16 ++++++-
 drivers/crypto/ccp/tee-dev.c          | 17 ++++++++
 drivers/crypto/ccp/tee-dev.h          |  6 +++
 drivers/platform/x86/amd/pmf/core.c   | 62 ++++++++++++++++++++++++++-
 drivers/platform/x86/amd/pmf/pmf.h    | 10 +++++
 drivers/platform/x86/amd/pmf/tee-if.c | 12 ++----
 8 files changed, 126 insertions(+), 11 deletions(-)

-- 
2.51.2