diff options
| author | Maksim Lukoshkov <maksim.lukoshkov@intel.com> | 2016-08-29 14:28:31 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-08-31 17:00:50 +0200 |
| commit | 93ba73fed31d0ec96489fedaeef1a1c402f9c8e4 (patch) | |
| tree | 9f8050bbfce6bcce6b384a1b1cc8ff8b673ad975 /drivers/crypto | |
| parent | hwrng: tx4939 - Use devm_hwrng_register instead of hwrng_register (diff) | |
| download | linux-93ba73fed31d0ec96489fedaeef1a1c402f9c8e4.tar.xz linux-93ba73fed31d0ec96489fedaeef1a1c402f9c8e4.zip | |
crypto: qat - fix constants table DMA
Copy const_tab array into DMA-able memory (accesible by qat hw).
Signed-off-by: Maksim Lukoshkov <maksim.lukoshkov@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/qat/qat_common/adf_admin.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_admin.c b/drivers/crypto/qat/qat_common/adf_admin.c index ce7c4626c983..3744b22f0c46 100644 --- a/drivers/crypto/qat/qat_common/adf_admin.c +++ b/drivers/crypto/qat/qat_common/adf_admin.c @@ -146,6 +146,7 @@ struct adf_admin_comms { dma_addr_t phy_addr; dma_addr_t const_tbl_addr; void *virt_addr; + void *virt_tbl_addr; void __iomem *mailbox_addr; struct mutex lock; /* protects adf_admin_comms struct */ }; @@ -251,17 +252,19 @@ int adf_init_admin_comms(struct adf_accel_dev *accel_dev) return -ENOMEM; } - admin->const_tbl_addr = dma_map_single(&GET_DEV(accel_dev), - (void *) const_tab, 1024, - DMA_TO_DEVICE); - - if (unlikely(dma_mapping_error(&GET_DEV(accel_dev), - admin->const_tbl_addr))) { + admin->virt_tbl_addr = dma_zalloc_coherent(&GET_DEV(accel_dev), + PAGE_SIZE, + &admin->const_tbl_addr, + GFP_KERNEL); + if (!admin->virt_tbl_addr) { + dev_err(&GET_DEV(accel_dev), "Failed to allocate const_tbl\n"); dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, admin->virt_addr, admin->phy_addr); kfree(admin); return -ENOMEM; } + + memcpy(admin->virt_tbl_addr, const_tab, sizeof(const_tab)); reg_val = (u64)admin->phy_addr; ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGUR_OFFSET, reg_val >> 32); ADF_CSR_WR(csr, ADF_DH895XCC_ADMINMSGLR_OFFSET, reg_val); @@ -282,9 +285,10 @@ void adf_exit_admin_comms(struct adf_accel_dev *accel_dev) if (admin->virt_addr) dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, admin->virt_addr, admin->phy_addr); + if (admin->virt_tbl_addr) + dma_free_coherent(&GET_DEV(accel_dev), PAGE_SIZE, + admin->virt_tbl_addr, admin->const_tbl_addr); - dma_unmap_single(&GET_DEV(accel_dev), admin->const_tbl_addr, 1024, - DMA_TO_DEVICE); mutex_destroy(&admin->lock); kfree(admin); accel_dev->admin = NULL; |