| What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/priority | |
| /sys/devices/platform/QCOM8060:*/chanops/chan*/priority | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains either 0 or 1 and indicates if the DMA channel is a | |
| low priority (0) or high priority (1) channel. | |
| What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/weight | |
| /sys/devices/platform/QCOM8060:*/chanops/chan*/weight | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains 0..15 and indicates the weight of the channel among | |
| equal priority channels during round robin scheduling. | |
| What: /sys/devices/platform/hidma-mgmt*/chreset_timeout_cycles | |
| /sys/devices/platform/QCOM8060:*/chreset_timeout_cycles | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains the platform specific cycle value to wait after a | |
| reset command is issued. If the value is chosen too short, | |
| then the HW will issue a reset failure interrupt. The value | |
| is platform specific and should not be changed without | |
| consultance. | |
| What: /sys/devices/platform/hidma-mgmt*/dma_channels | |
| /sys/devices/platform/QCOM8060:*/dma_channels | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains the number of dma channels supported by one instance | |
| of HIDMA hardware. The value may change from chip to chip. | |
| What: /sys/devices/platform/hidma-mgmt*/hw_version_major | |
| /sys/devices/platform/QCOM8060:*/hw_version_major | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Version number major for the hardware. | |
| What: /sys/devices/platform/hidma-mgmt*/hw_version_minor | |
| /sys/devices/platform/QCOM8060:*/hw_version_minor | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Version number minor for the hardware. | |
| What: /sys/devices/platform/hidma-mgmt*/max_rd_xactions | |
| /sys/devices/platform/QCOM8060:*/max_rd_xactions | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains a value between 0 and 31. Maximum number of | |
| read transactions that can be issued back to back. | |
| Choosing a higher number gives better performance but | |
| can also cause performance reduction to other peripherals | |
| sharing the same bus. | |
| What: /sys/devices/platform/hidma-mgmt*/max_read_request | |
| /sys/devices/platform/QCOM8060:*/max_read_request | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Size of each read request. The value needs to be a power | |
| of two and can be between 128 and 1024. | |
| What: /sys/devices/platform/hidma-mgmt*/max_wr_xactions | |
| /sys/devices/platform/QCOM8060:*/max_wr_xactions | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Contains a value between 0 and 31. Maximum number of | |
| write transactions that can be issued back to back. | |
| Choosing a higher number gives better performance but | |
| can also cause performance reduction to other peripherals | |
| sharing the same bus. | |
| What: /sys/devices/platform/hidma-mgmt*/max_write_request | |
| /sys/devices/platform/QCOM8060:*/max_write_request | |
| Date: Nov 2015 | |
| KernelVersion: 4.4 | |
| Contact: "Sinan Kaya <okaya@codeaurora.org>" | |
| Description: | |
| Size of each write request. The value needs to be a power | |
| of two and can be between 128 and 1024. |