linux.git/drivers/crypto/ccp/ccp-dev.c, branch v4.11 Linux kernel source tree crypto: ccp - Assign DMA commands to the channel's CCP 2017-03-16T09:43:08+00:00 Gary R Hook ghook@amd.com 2017-03-10T18:28:18+00:00 7c468447f40645fbf2a033dfdaa92b1957130d50 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: <stable@vger.kernel.org> # 4.9.x- Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
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: <stable@vger.kernel.org> # 4.9.x-
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Clean up the LSB slot allocation code 2016-10-25T03:08:23+00:00 Gary R Hook gary.hook@amd.com 2016-10-18T22:33:37+00:00 103600ab966a2f02d8986bbfdf87b762b1c6a06d Fix a few problems revealed by testing: verify consistent units, especially in public slot allocation. Percolate some common initialization code up to a common routine. Add some comments. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Fix a few problems revealed by testing: verify consistent
units, especially in public slot allocation. Percolate
some common initialization code up to a common routine.
Add some comments.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Fix non static symbol warning 2016-10-25T03:08:17+00:00 Wei Yongjun weiyongjun1@huawei.com 2016-10-17T15:08:50+00:00 ff4f44de44dbd98feecf8fa76e14353a3993b335 Fixes the following sparse warning: drivers/crypto/ccp/ccp-dev.c:44:6: warning: symbol 'ccp_error_codes' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Gary R Hook <gary.hook@amd.com> Acked-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Fixes the following sparse warning:

drivers/crypto/ccp/ccp-dev.c:44:6: warning:
 symbol 'ccp_error_codes' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Acked-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Make syslog errors human-readable 2016-10-02T14:33:45+00:00 Gary R Hook gary.hook@amd.com 2016-09-28T16:53:56+00:00 81422badb39078fde1ffcecda3caac555226fc7b Add human-readable strings to log messages about CCP errors Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Add human-readable strings to log messages about CCP errors

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Fix non static symbol warning 2016-08-16T09:20:18+00:00 Wei Yongjun weiyj.lk@gmail.com 2016-08-12T00:00:09+00:00 dabc7904a74c47ead9d40cc00d5e8b1946a0736c Fixes the following sparse warning: drivers/crypto/ccp/ccp-dev.c:62:14: warning: symbol 'ccp_increment_unit_ordinal' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Fixes the following sparse warning:

drivers/crypto/ccp/ccp-dev.c:62:14: warning:
 symbol 'ccp_increment_unit_ordinal' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Add support for the RNG in a version 5 CCP 2016-08-09T10:47:17+00:00 Gary R Hook gary.hook@amd.com 2016-07-27T00:10:31+00:00 084935b208f6507ef5214fd67052a67a700bc6cf Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Refactor code supporting the CCP's RNG 2016-08-09T10:47:09+00:00 Gary R Hook gary.hook@amd.com 2016-07-27T00:10:02+00:00 8256e683113e659d9bf6bffdd227eeb1881ae9a7 Make the RNG support code common (where possible) in preparation for adding a v5 device. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Make the RNG support code common (where possible) in
preparation for adding a v5 device.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Refactoring: symbol cleanup 2016-08-09T10:47:08+00:00 Gary R Hook gary.hook@amd.com 2016-07-27T00:09:40+00:00 956ee21a6df08afd9c1c64e0f394a9a1b65e897d Form and use of the local storage block in the CCP is particular to the device version. Much of the code that accesses the storage block can treat it as a virtual resource, and will under go some renaming. Device-specific access to the memory will be moved into device file. Service functions will be added to the actions structure. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Form and use of the local storage block in the CCP is
particular to the device version. Much of the code that
accesses the storage block can treat it as a virtual
resource, and will under go some renaming. Device-specific
access to the memory will be moved into device file.
Service functions will be added to the actions
structure.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - Fix RT breaking #include <linux/rwlock_types.h> 2016-04-15T14:35:44+00:00 Mike Galbraith umgwanakikbuti@gmail.com 2016-04-05T13:03:21+00:00 7587c407540006e4e8fd5ed33f66ffe6158e830a Direct include of rwlock_types.h breaks RT, use spinlock_types.h instead. Fixes: 553d2374db0b crypto: ccp - Support for multiple CCPs Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
Direct include of rwlock_types.h breaks RT, use spinlock_types.h instead.

Fixes: 553d2374db0b crypto: ccp - Support for multiple CCPs
Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: ccp - fix lock acquisition code 2016-03-17T11:09:02+00:00 Gary R Hook gary.hook@amd.com 2016-03-16T14:02:26+00:00 03a6f29000fdc13adc2bb2e22efd07a51d334154 This patch simplifies an unneeded read-write lock. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
This patch simplifies an unneeded read-write lock.

Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>