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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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dmaengine updates for 4.6
This is smallish update with minor changes to core and new driver and usual
updates. Nothing super exciting here..
- We have made slave address as physical to enable driver to do the mapping.
- We now expose the maxburst for slave dma as new capability so clients can
know this and program accordingly
- addition of device synchronize callbacks on omap and edma.
- pl330 updates to support DMAFLUSHP for Rockchip platforms.
- Updates and improved sg handling in Xilinx VDMA driver.
- New hidma qualcomm dma driver, though some bits are still in progress
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Merge tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
"This is smallish update with minor changes to core and new driver and
usual updates. Nothing super exciting here..
- We have made slave address as physical to enable driver to do the
mapping.
- We now expose the maxburst for slave dma as new capability so
clients can know this and program accordingly
- addition of device synchronize callbacks on omap and edma.
- pl330 updates to support DMAFLUSHP for Rockchip platforms.
- Updates and improved sg handling in Xilinx VDMA driver.
- New hidma qualcomm dma driver, though some bits are still in
progress"
* tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits)
dmaengine: IOATDMA: revise channel reset workaround on CB3.3 platforms
dmaengine: add Qualcomm Technologies HIDMA channel driver
dmaengine: add Qualcomm Technologies HIDMA management driver
dmaengine: hidma: Add Device Tree binding
dmaengine: qcom_bam_dma: move to qcom directory
dmaengine: tegra: Move of_device_id table near to its user
dmaengine: xilinx_vdma: Remove unnecessary variable initializations
dmaengine: sirf: use __maybe_unused to hide pm functions
dmaengine: rcar-dmac: clear pertinence number of channels
dmaengine: sh: shdmac: don't open code of_device_get_match_data()
dmaengine: tegra: don't open code of_device_get_match_data()
dmaengine: qcom_bam_dma: Make driver work for BE
dmaengine: sun4i: support module autoloading
dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo
dmaengine: xilinx_vdma: Use readl_poll_timeout instead of do while loop's
dmaengine: xilinx_vdma: Simplify spin lock handling
dmaengine: xilinx_vdma: Fix issues with non-parking mode
dmaengine: xilinx_vdma: Improve SG engine handling
dmaengine: pl330: fix to support the burst mode
dmaengine: make slave address physical
...
This commit is contained in:
Linus Torvalds
commit
b5b131c747
37 changed files with 2146 additions and 464 deletions
97
Documentation/ABI/testing/sysfs-platform-hidma-mgmt
Normal file
97
Documentation/ABI/testing/sysfs-platform-hidma-mgmt
Normal file
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What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/priority
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/sys/devices/platform/QCOM8060:*/chanops/chan*/priority
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains either 0 or 1 and indicates if the DMA channel is a
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low priority (0) or high priority (1) channel.
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What: /sys/devices/platform/hidma-mgmt*/chanops/chan*/weight
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/sys/devices/platform/QCOM8060:*/chanops/chan*/weight
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains 0..15 and indicates the weight of the channel among
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equal priority channels during round robin scheduling.
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What: /sys/devices/platform/hidma-mgmt*/chreset_timeout_cycles
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/sys/devices/platform/QCOM8060:*/chreset_timeout_cycles
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains the platform specific cycle value to wait after a
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reset command is issued. If the value is chosen too short,
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then the HW will issue a reset failure interrupt. The value
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is platform specific and should not be changed without
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consultance.
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What: /sys/devices/platform/hidma-mgmt*/dma_channels
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/sys/devices/platform/QCOM8060:*/dma_channels
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains the number of dma channels supported by one instance
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of HIDMA hardware. The value may change from chip to chip.
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What: /sys/devices/platform/hidma-mgmt*/hw_version_major
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/sys/devices/platform/QCOM8060:*/hw_version_major
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Version number major for the hardware.
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What: /sys/devices/platform/hidma-mgmt*/hw_version_minor
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/sys/devices/platform/QCOM8060:*/hw_version_minor
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Version number minor for the hardware.
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What: /sys/devices/platform/hidma-mgmt*/max_rd_xactions
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/sys/devices/platform/QCOM8060:*/max_rd_xactions
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains a value between 0 and 31. Maximum number of
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read transactions that can be issued back to back.
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Choosing a higher number gives better performance but
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can also cause performance reduction to other peripherals
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sharing the same bus.
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What: /sys/devices/platform/hidma-mgmt*/max_read_request
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/sys/devices/platform/QCOM8060:*/max_read_request
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Size of each read request. The value needs to be a power
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of two and can be between 128 and 1024.
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What: /sys/devices/platform/hidma-mgmt*/max_wr_xactions
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/sys/devices/platform/QCOM8060:*/max_wr_xactions
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Contains a value between 0 and 31. Maximum number of
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write transactions that can be issued back to back.
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Choosing a higher number gives better performance but
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can also cause performance reduction to other peripherals
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sharing the same bus.
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What: /sys/devices/platform/hidma-mgmt*/max_write_request
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/sys/devices/platform/QCOM8060:*/max_write_request
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Date: Nov 2015
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KernelVersion: 4.4
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Contact: "Sinan Kaya <[email protected]>"
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Description:
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Size of each write request. The value needs to be a power
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of two and can be between 128 and 1024.
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