Based on kernel version 6.12.4. Page generated on 2024-12-12 21:01 EST.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | 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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.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@kernel.org>" Description: Size of each write request. The value needs to be a power of two and can be between 128 and 1024. |