linux-toradex.git/drivers/crypto/vmx/aes_ctr.c, branch v4.2.6 Linux kernel for Apalis and Colibri modules crypto: vmx - Adding enable_kernel_vsx() to access VSX instructions 2015-09-29T17:33:24+00:00 Leonidas Da Silva Barbosa leosilva@linux.vnet.ibm.com 2015-07-13T16:51:39+00:00 8a23f65f5aacc0467428fe888087ebdad164ead1 commit 2d6f0600b2cd755959527230ef5a6fba97bb762a upstream. vmx-crypto driver make use of some VSX instructions which are only available if VSX is enabled. Running in cases where VSX are not enabled vmx-crypto fails in a VSX exception. In order to fix this enable_kernel_vsx() was added to turn on VSX instructions for vmx-crypto. Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 2d6f0600b2cd755959527230ef5a6fba97bb762a upstream.

vmx-crypto driver make use of some VSX instructions which are
only available if VSX is enabled. Running in cases where VSX
are not enabled vmx-crypto fails in a VSX exception.

In order to fix this enable_kernel_vsx() was added to turn on
VSX instructions for vmx-crypto.

Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
crypto: vmx - Fixing AES-CTR counter bug 2015-09-21T17:10:54+00:00 Leonidas Da Silva Barbosa leosilva@linux.vnet.ibm.com 2015-08-14T13:12:22+00:00 30c3a5fe42df2e9fa12d8e2d753d9e0c25d9d28b commit 1d4aa0b4c1816e8ca92a6aadb0d8f6b43c56c0d0 upstream. AES-CTR is using a counter 8bytes-8bytes what miss match with kernel specs. In the previous code a vadduwm was done to increment counter. Replacing this for a vadduqm now considering both cases counter 8-8 bytes and full 16bytes. Signed-off-by: Leonidas S Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 1d4aa0b4c1816e8ca92a6aadb0d8f6b43c56c0d0 upstream.

AES-CTR is using a counter 8bytes-8bytes what miss match with
kernel specs.

In the previous code a vadduwm was done to increment counter.
Replacing this for a vadduqm now considering both cases counter
8-8 bytes and full 16bytes.

Signed-off-by: Leonidas S Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
crypto: vmx - Reindent to kernel style 2015-06-16T06:35:02+00:00 Herbert Xu herbert@gondor.apana.org.au 2015-06-15T08:55:46+00:00 4beb106045976b785a05e77ab5430ad04b6038b7 This patch reidents the vmx code-base to the kernel coding style. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
This patch reidents the vmx code-base to the kernel coding style.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: vmx - Adding CTR routines for VMX module 2015-02-28T10:13:45+00:00 Marcelo H. Cerri mhcerri@linux.vnet.ibm.com 2015-02-06T16:58:31+00:00 4f7f60d312b3816542412ee90e05f06b50a51489 This patch adds AES CTR routines to VMX module in order to make use of VMX cryptographic acceleration instructions on Power 8 CPU. Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> 
This patch adds AES CTR routines to VMX module in order to
make use of VMX cryptographic acceleration instructions
on Power 8 CPU.

Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>