diff options
| author | Hiroshi Doyu <hdoyu@nvidia.com> | 2013-12-10 13:26:13 +0200 |
|---|---|---|
| committer | Krishna Reddy <vdumpa@nvidia.com> | 2013-12-12 11:56:36 -0800 |
| commit | f54adfcd6d821afe8dcddd1dc02877d3bf2730cf (patch) | |
| tree | 1c819b2321137474ae95646b48844df0a05d5092 | |
| parent | fafea7ef5ff8a48c753498fee8ea383e7b736662 (diff) | |
crypto: tegra-se: avoid ctx save buf from highmem
DMA API(IOMMU) can allocate pages from highmem since IOMMU usually
voids the limitation of accesible page range from HWA. But there's
some special case that a client wants pages accessible within 32bit
explicitly, especially for some PM suspend/resume case here. This
patch gives a hint to DMA API where to allocate pages.
Bug 1414172
Change-Id: I4f457264724d92e2d9fba7993c2c62c165fe2010
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/343646
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
| -rw-r--r-- | drivers/crypto/tegra-se.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/crypto/tegra-se.c b/drivers/crypto/tegra-se.c index bbd011e124d8..196450f4dcc8 100644 --- a/drivers/crypto/tegra-se.c +++ b/drivers/crypto/tegra-se.c @@ -2694,11 +2694,11 @@ static int tegra_se_probe(struct platform_device *pdev) if (!se_dev->chipdata->drbg_supported) se_dev->ctx_save_buf = dma_alloc_coherent(se_dev->dev, SE_CONTEXT_BUFER_SIZE, &se_dev->ctx_save_buf_adr, - GFP_KERNEL); + GFP_DMA32); else se_dev->ctx_save_buf = dma_alloc_coherent(se_dev->dev, SE_CONTEXT_DRBG_BUFER_SIZE, - &se_dev->ctx_save_buf_adr, GFP_KERNEL); + &se_dev->ctx_save_buf_adr, GFP_DMA32); if (!se_dev->ctx_save_buf) { dev_err(se_dev->dev, "Context save buffer alloc filed\n"); |