The fourth argument of dma_map_sg() and dma_unmap_sg() is an item of
dma_data_direction enum. Function img_hash_xmit_dma() wrongly used
DMA_MEM_TO_DEV, which is an item of dma_transfer_direction enum.
Replace DMA_MEM_TO_DEV (which value is 1) with DMA_TO_DEVICE (which
value is fortunately also 1) when calling dma_map_sg() and
dma_unmap_sg().
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Properly allocate enough memory to respect the fallback.
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Currently the probe function only emits an output on success
when debug is specifically enabled. It would be more useful
if this happens by default.
Signed-off-by: James Hartley <james.hartley@imgtec.com>
Reviewed-by: Will Thomas <will.thomas@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Currently the img-hash accelerator does not probe
successfully due to a change in the checks made during
registration with the crypto framework. This is due to
import and export functions not being defined. Correct
this.
Signed-off-by: James Hartley <james.hartley@imgtec.com>
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Current img hash claims sys and periph gate clocks
and this can be gated in system suspend scenarios.
Add support for Device pm ops for img hash to gate
the clocks claimed by img hash.
Signed-off-by: Govindraj Raja <Govindraj.Raja@imgtec.com>
Reviewed-by: Will Thomas <will.thomas@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Burst length of 16 drives the hash accelerator out of spec
and causes stability issues in some cases. Reduce this to
stop data being lost.
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Reviewed-by: James Hartley <james.hartley@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Move 0 length buffer to end of structure to stop overwriting
fallback request data. This doesn't cause a bug itself as the
buffer is never used alongside the fallback but should be
changed.
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Reviewed-by: James Hartley <james.hartley@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Sporadic null pointer exceptions came from here. Fix them.
Signed-off-by: Will Thomas <will.thomas@imgtec.com>
Reviewed-by: James Hartley <james.hartley@imgtec.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Trival change, fix spelling mistake 'aquire' -> 'acquire' in
dev_err message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
"hdev->req->nbytes" is an unsigned int so we so we lose the upper 3 bits
to the shift wrap bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
GCC complains about that %u is the wrong format string for size_t and
also that "ret" is unused.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto: img-hash - Add missing semicolon to fix build error
There is a missing semicolon after MODULE_DEVICE_TABLE.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This adds support for the Imagination Technologies hash accelerator which
provides hardware acceleration for SHA1 SHA224 SHA256 and MD5 hashes.
Signed-off-by: James Hartley <james.hartley@imgtec.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Nicolas Iooss