diff options
| author | Sinan Kaya <okaya@codeaurora.org> | 2016-02-04 23:34:34 -0500 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-03-11 07:42:23 +0530 |
| commit | 7f8f209fd6e09a07fd1820144452caba419cf2b4 (patch) | |
| tree | 2f430ca5b6ffb903e7bf0232aebac3a1e921742b /drivers/dma/qcom/Kconfig | |
| parent | 858de34c0a31b9438eeab2ae0465c20c68bf63f0 (diff) | |
dmaengine: add Qualcomm Technologies HIDMA management driver
The Qualcomm Technologies HIDMA device has been designed to support
virtualization technology. The driver has been divided into two to follow
the hardware design.
1. HIDMA Management driver
2. HIDMA Channel driver
Each HIDMA HW consists of multiple channels. These channels share some set
of common parameters. These parameters are initialized by the management
driver during power up. Same management driver is used for monitoring the
execution of the channels. Management driver can change the performance
behavior dynamically such as bandwidth allocation and prioritization.
The management driver is executed in host context and is the main
management entity for all channels provided by the device.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/qcom/Kconfig')
| -rw-r--r-- | drivers/dma/qcom/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/dma/qcom/Kconfig b/drivers/dma/qcom/Kconfig index f17c27288808..c975b1167acf 100644 --- a/drivers/dma/qcom/Kconfig +++ b/drivers/dma/qcom/Kconfig @@ -6,3 +6,14 @@ config QCOM_BAM_DMA ---help--- Enable support for the QCOM BAM DMA controller. This controller provides DMA capabilities for a variety of on-chip devices. + +config QCOM_HIDMA_MGMT + tristate "Qualcomm Technologies HIDMA Management support" + select DMA_ENGINE + help + Enable support for the Qualcomm Technologies HIDMA Management. + Each DMA device requires one management interface driver + for basic initialization before QCOM_HIDMA channel driver can + start managing the channels. In a virtualized environment, + the guest OS would run QCOM_HIDMA channel driver and the + host would run the QCOM_HIDMA_MGMT management driver. |