kernel/linux.git/drivers/crypto/ccp/ccp-dev.c, branch linux-4.20.y

crypto: ccp - use -ENOSPC for transient busy indication

2017-11-03T14:11:16+00:00

Replace -EBUSY with -ENOSPC when reporting transient busy indication in the absence of backlog. Signed-off-by: Gilad Ben-Yossef Reviewed-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - remove duplicate module version and author entry

2017-08-03T05:47:21+00:00

commit 720419f01832 ("crypto: ccp - Introduce the AMD Secure Processor device") moved the module registeration from ccp-dev.c to sp-dev.c but patch missed removing the module version and author entry from ccp-dev.c. It causes the below warning during boot when CONFIG_CRYPTO_DEV_SP_CCP=y and CONFIG_CRYPTO_DEV_CCP_CRYPTO=y is set. [ 0.187825] sysfs: cannot create duplicate filename '/module/ccp/version' [ 0.187825] sysfs: cannot create duplicate filename '/module/ccp/version' Cc: Tom Lendacky Cc: Gary R Hook Cc: Herbert Xu Cc: David S. Miller Signed-off-by: Brijesh Singh Signed-off-by: Herbert Xu

crypto: ccp - Update copyright dates for 2017.

2017-07-28T09:58:01+00:00

Some updates this year have not had copyright dates changed in modified files. Correct this for 2017. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Abstract interrupt registeration

2017-07-18T09:57:14+00:00

The CCP and PSP devices part of AMD Secure Procesor may share the same interrupt. Hence we expand the SP device to register a common interrupt handler and provide functions to CCP and PSP devices to register their interrupt callback which will be invoked upon interrupt. Signed-off-by: Brijesh Singh Acked-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Introduce the AMD Secure Processor device

2017-07-18T09:51:19+00:00

The CCP device is part of the AMD Secure Processor. In order to expand the usage of the AMD Secure Processor, create a framework that allows functional components of the AMD Secure Processor to be initialized and handled appropriately. Signed-off-by: Brijesh Singh Acked-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Use devres interface to allocate PCI/iomap and cleanup

2017-07-18T09:50:59+00:00

Update pci and platform files to use devres interface to allocate the PCI and iomap resources. Also add helper functions to consolicate module init, exit and power mangagement code duplication. Signed-off-by: Brijesh Singh Acked-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Fix some line spacing

2017-07-18T09:50:53+00:00

Add/remove blank lines as appropriate. Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Add debugfs entries for CCP information

2017-06-19T06:11:47+00:00

Expose some data about the configuration and operation of the CCP through debugfs entries: device name, capabilities, configuration, statistics. Allow the user to reset the counters to zero by writing (any value) to the 'stats' file. This can be done per queue or per device. Changes from V1: - Correct polarity of test when destroying devices at module unload Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Add a module author

2017-05-18T05:19:52+00:00

CC: # 4.9.x+ Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu

crypto: ccp - Assign DMA commands to the channel's CCP

2017-03-16T09:43:08+00:00

The CCP driver generally uses a round-robin approach when assigning operations to available CCPs. For the DMA engine, however, the DMA mappings of the SGs are associated with a specific CCP. When an IOMMU is enabled, the IOMMU is programmed based on this specific device. If the DMA operations are not performed by that specific CCP then addressing errors and I/O page faults will occur. Update the CCP driver to allow a specific CCP device to be requested for an operation and use this in the DMA engine support. Cc: # 4.9.x- Signed-off-by: Gary R Hook Signed-off-by: Herbert Xu