| 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 2 | config QCOM_ADM |
| 3 | tristate "Qualcomm ADM support" |
| 4 | depends on (ARCH_QCOM || COMPILE_TEST) && !PHYS_ADDR_T_64BIT |
| 5 | select DMA_ENGINE |
| 6 | select DMA_VIRTUAL_CHANNELS |
| 7 | help |
| 8 | Enable support for the Qualcomm Application Data Mover (ADM) DMA |
| 9 | controller, as present on MSM8x60, APQ8064, and IPQ8064 devices. |
| 10 | This controller provides DMA capabilities for both general purpose |
| 11 | and on-chip peripheral devices. |
| 12 | |
| 13 | config QCOM_BAM_DMA |
| 14 | tristate "Qualcomm BAM DMA support" |
| 15 | depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM) |
| 16 | select DMA_ENGINE |
| 17 | select DMA_VIRTUAL_CHANNELS |
| 18 | help |
| 19 | Enable support for the QCOM BAM DMA controller. This controller |
| 20 | provides DMA capabilities for a variety of on-chip devices. |
| 21 | |
| 22 | config QCOM_GPI_DMA |
| 23 | tristate "Qualcomm GPI DMA support" |
| 24 | depends on ARCH_QCOM |
| 25 | select DMA_ENGINE |
| 26 | select DMA_VIRTUAL_CHANNELS |
| 27 | help |
| 28 | Enable support for the QCOM GPI DMA controller. This controller |
| 29 | provides DMA capabilities for a variety of peripheral buses such |
| 30 | as I2C, UART, and SPI. By using GPI dmaengine driver, bus drivers |
| 31 | can use a standardize interface that is protocol independent to |
| 32 | transfer data between DDR and peripheral. |
| 33 | |
| 34 | config QCOM_HIDMA_MGMT |
| 35 | tristate "Qualcomm HIDMA Management support" |
| 36 | depends on HAS_IOMEM |
| 37 | select DMA_ENGINE |
| 38 | help |
| 39 | Enable support for the Qualcomm Technologies HIDMA Management. |
| 40 | Each DMA device requires one management interface driver |
| 41 | for basic initialization before QCOM_HIDMA channel driver can |
| 42 | start managing the channels. In a virtualized environment, |
| 43 | the guest OS would run QCOM_HIDMA channel driver and the |
| 44 | host would run the QCOM_HIDMA_MGMT management driver. |
| 45 | |
| 46 | config QCOM_HIDMA |
| 47 | tristate "Qualcomm HIDMA Channel support" |
| 48 | depends on HAS_IOMEM |
| 49 | select DMA_ENGINE |
| 50 | help |
| 51 | Enable support for the Qualcomm Technologies HIDMA controller. |
| 52 | The HIDMA controller supports optimized buffer copies |
| 53 | (user to kernel, kernel to kernel, etc.). It only supports |
| 54 | memcpy interface. The core is not intended for general |
| 55 | purpose slave DMA. |