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| author | Gaurav Jain <gaurav.jain@nxp.com> | 2022-04-19 10:52:28 +0530 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2022-04-21 15:18:25 +0200 |
| commit | 2c16bf2d14d7fbacafb5473f49487ba7f219e40c (patch) | |
| tree | 4a6aef4c41c0ba1b4c33151f812b59c0f2d5e648 /drivers | |
| parent | 96b2c9c9e0036e89fe65ad608275152ff44c5907 (diff) | |
| download | u-boot-2c16bf2d14d7fbacafb5473f49487ba7f219e40c.zip u-boot-2c16bf2d14d7fbacafb5473f49487ba7f219e40c.tar.gz u-boot-2c16bf2d14d7fbacafb5473f49487ba7f219e40c.tar.bz2 | |
crypto/fsl: add invalidate_dcache_range for hash output buffer
HW accelerated hash operations are giving incorrect hash output.
so invalidate cache lines to avoid cache overwriting in DDR memory region.
caam_hash()
-moved address alignment check in the beginning of function.
-added invalidate_dcache_range for pout buffer before running descriptor.
Fixes: d7af2baa49 (crypto/fsl: Fix HW accelerated hash commands)
Signed-off-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/fsl/fsl_hash.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/crypto/fsl/fsl_hash.c b/drivers/crypto/fsl/fsl_hash.c index 2379b70..a52c4ac 100644 --- a/drivers/crypto/fsl/fsl_hash.c +++ b/drivers/crypto/fsl/fsl_hash.c @@ -168,18 +168,18 @@ int caam_hash(const unsigned char *pbuf, unsigned int buf_len, uint32_t *desc; unsigned int size; - desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE); - if (!desc) { - debug("Not enough memory for descriptor allocation\n"); - return -ENOMEM; - } - if (!IS_ALIGNED((uintptr_t)pbuf, ARCH_DMA_MINALIGN) || !IS_ALIGNED((uintptr_t)pout, ARCH_DMA_MINALIGN)) { puts("Error: Address arguments are not aligned\n"); return -EINVAL; } + desc = malloc_cache_aligned(sizeof(int) * MAX_CAAM_DESCSIZE); + if (!desc) { + debug("Not enough memory for descriptor allocation\n"); + return -ENOMEM; + } + size = ALIGN(buf_len, ARCH_DMA_MINALIGN); flush_dcache_range((unsigned long)pbuf, (unsigned long)pbuf + size); @@ -190,6 +190,8 @@ int caam_hash(const unsigned char *pbuf, unsigned int buf_len, size = ALIGN(sizeof(int) * MAX_CAAM_DESCSIZE, ARCH_DMA_MINALIGN); flush_dcache_range((unsigned long)desc, (unsigned long)desc + size); + size = ALIGN(driver_hash[algo].digestsize, ARCH_DMA_MINALIGN); + invalidate_dcache_range((unsigned long)pout, (unsigned long)pout + size); ret = run_descriptor_jr(desc); |