* Huang Ying ying.hu...@intel.com wrote:
This is used by AES-NI accelerated AES implementation and PCLMULQDQ
accelerated GHASH implementation.
Signed-off-by: Huang Ying ying.hu...@intel.com
---
arch/x86/crypto/aesni-intel_glue.c |7 ---
arch/x86/include/asm/i387.h|
Ingo Molnar wrote:
+static inline int kernel_fpu_using(void)
+{
+if (in_interrupt() !(read_cr0() X86_CR0_TS))
+return 1;
+return 0;
+}
+
Looks sane to me. Herbert, do you ack it?
Although I have to say, the structure of:
if (boolean test)
return 1;
On Wed, Jun 17, 2009 at 10:06:44AM -0700, H. Peter Anvin wrote:
Ingo Molnar wrote:
+static inline int kernel_fpu_using(void)
+{
+ if (in_interrupt() !(read_cr0() X86_CR0_TS))
+ return 1;
+ return 0;
+}
+
Looks sane to me. Herbert, do you ack it?
Ack. Please
On Thu, 2009-06-18 at 04:04 +0800, Sebastian Andrzej Siewior wrote:
* Huang Ying | 2009-06-11 15:10:26 [+0800]:
GHASH is implemented as a shash algorithm. The actual implementation
is copied from gcm.c. This makes it possible to add
architecture/hardware accelerated GHASH implementation.
On Thu, 2009-06-18 at 04:47 +0800, Sebastian Andrzej Siewior wrote:
* Huang Ying | 2009-06-11 15:10:28 [+0800]:
Remove the dedicated GHASH implementation in GCM, and uses the GHASH
digest algorithm instead. This will make GCM uses hardware accelerated
GHASH implementation automatically if
On Thu, Jun 18, 2009 at 10:08:27AM +0800, Huang Ying wrote:
Unless I'm mistaken, this is called once on allocation and this ctx is
allocated via kzalloc().
Yes. it is alloced via kzalloc. Can we just rely on this? Should we add
that assumption to somewhere such as document of comments.
Herbert Xu wrote:
On Wed, Jun 17, 2009 at 10:06:44AM -0700, H. Peter Anvin wrote:
Huang: if I recall correctly, these functions were originally designed
to deal with the fact that VIA processors generate spurious #TS faults
due to broken design of the Padlock instructions. The AES and
Huang Ying wrote:
After some thinking, I think something as follow may be more
appropriate:
/* This may be useful for someone else */
static inline bool fpu_using(void)
{
return !(read_cr0() X86_CR0_TS);
}
static inline bool irq_fpu_using(void)
{
return in_interrupt()
