Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) config QCOM_BAM_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 	tristate "QCOM BAM DMA support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 	select DMA_ENGINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	select DMA_VIRTUAL_CHANNELS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	  Enable support for the QCOM BAM DMA controller.  This controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	  provides DMA capabilities for a variety of on-chip devices.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) config QCOM_HIDMA_MGMT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	tristate "Qualcomm Technologies HIDMA Management support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	depends on HAS_IOMEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	select DMA_ENGINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	  Enable support for the Qualcomm Technologies HIDMA Management.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	  Each DMA device requires one management interface driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	  for basic initialization before QCOM_HIDMA channel driver can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	  start managing the channels. In a virtualized environment,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	  the guest OS would run QCOM_HIDMA channel driver and the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	  host would run the QCOM_HIDMA_MGMT management driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) config QCOM_HIDMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	tristate "Qualcomm Technologies HIDMA Channel support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	select DMA_ENGINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	  Enable support for the Qualcomm Technologies HIDMA controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	  The HIDMA controller supports optimized buffer copies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	  (user to kernel, kernel to kernel, etc.).  It only supports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	  memcpy interface. The core is not intended for general
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	  purpose slave DMA.