diff options
| author | Naveen Kumar Arepalli <naveenk@nvidia.com> | 2014-05-30 12:17:39 +0530 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2014-06-11 06:52:11 -0700 |
| commit | 63ecf68a3714926fe79fa60c1adc3f7e61c324f2 (patch) | |
| tree | 8b238ca7753e5cb50d9b32678c61b24fd78b0c06 /include | |
| parent | 006fffc2f4680b46b3ba78ecafab4a44e8ca8ed1 (diff) | |
mmc: sdhci: Use pre-allocated DMA buffers
Use pre-allocated DMA buffers for ADMA descriptor and Bounce buffer
instead of dynamic DMA mapping.
This improves SDHCI driver performance by reducing dynamic DMA mapping
overhead.
Bug 1486735
Change-Id: Ic9c646437be047d33304339eccc48a825f0a8bcc
Reviewed-on: http://git-master/r/380885
Cherry-picked from commit 7ffcc4cf1a1cec42610c1b55c30b3ec28547a11e
Signed-off-by: Jinyoung Park <jinyoungp@nvidia.com>
Signed-off-by: Naveen Kumar Arepalli <naveenk@nvidia.com>
Change-Id: If850a534ba9fbfd169b4fbefd35ca5922b1d1254
Reviewed-on: http://git-master/r/416955
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Reviewed-by: R Raj Kumar <rrajk@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
(cherry picked from commit 9e58888afe4e66e83eece0a8332c8e7440bd1bcf)
Reviewed-on: http://git-master/r/419444
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/sdhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index ebd40bcfa1cf..43c49d76a727 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -211,6 +211,7 @@ struct sdhci_host { dma_addr_t adma_addr; /* Mapped ADMA descr. table */ dma_addr_t align_addr; /* Mapped bounce buffer */ + bool use_dma_alloc; struct tasklet_struct card_tasklet; /* Tasklet structures */ struct tasklet_struct finish_tasklet; |