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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/dma-buf/Kconfig
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+# SPDX-License-Identifier: GPL-2.0-only
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 menu "DMABUF options"
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 config DMABUF_CACHE
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 	bool "DMABUF cache attachment"
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 	default ARCH_ROCKCHIP
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+	depends on NO_GKI
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 	help
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 	  This option support to store attachments in a list and destroy them by
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 	  set to a callback list in the dtor of dma-buf.
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+
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+config RK_DMABUF_DEBUG
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+	bool "Rockchip DMABUF debug option"
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+	depends on NO_GKI
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+	select RK_DMABUF_PROCFS
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+	help
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+	  This option support to debug all the dmabuf on db_list, allows to set
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+	  a name for dmabuf. If not sure, say N
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+
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+config RK_DMABUF_DEBUG_ADVANCED
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+	bool "Rockchip DMABUF debug advanced option"
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+	depends on RK_DMABUF_DEBUG
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+	help
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+	  This option support to debug all the dmabuf on db_list, allows to attach
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+	  and map a dmabuf who has no attachment. If not sure, say N
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+
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+config DMABUF_PARTIAL
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+	bool "Support for partial cache maintenance"
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+	default y
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+	help
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+	  In order to improve performance, allow dma-buf clients to
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+	  apply cache maintenance to only a subset of a dma-buf.
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+
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+	  Kernel clients will be able to use the dma_buf_begin_cpu_access_partial
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+	  and dma_buf_end_cpu_access_partial functions to only apply cache
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+	  maintenance to a range within the dma-buf.
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 config SYNC_FILE
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 	bool "Explicit Synchronization Framework"
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 	default n
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 	select DMA_SHARED_BUFFER
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-	---help---
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-	  The Sync File Framework adds explicit syncronization via
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+	help
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+	  The Sync File Framework adds explicit synchronization via
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 	  userspace. It enables send/receive 'struct dma_fence' objects to/from
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 	  userspace via Sync File fds for synchronization between drivers via
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 	  userspace components. It has been ported from Android.
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@@ -21,19 +49,52 @@
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 	  associated with a buffer. When a job is submitted to the GPU a fence
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 	  is attached to the buffer and is transferred via userspace, using Sync
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 	  Files fds, to the DRM driver for example. More details at
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-	  Documentation/sync_file.txt.
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+	  Documentation/driver-api/sync_file.rst.
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 config SW_SYNC
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-	bool "Sync File Validation Framework"
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+	tristate "Sync File Validation Framework"
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 	default n
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 	depends on SYNC_FILE
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-	---help---
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+	help
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 	  A sync object driver that uses a 32bit counter to coordinate
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 	  synchronization.  Useful when there is no hardware primitive backing
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 	  the synchronization.
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 	  WARNING: improper use of this can result in deadlocking kernel
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 	  drivers from userspace. Intended for test and debug only.
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+
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+config SW_SYNC_DEBUG
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+	bool "SW Sync Debug"
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+	depends on DEBUG_FS && SW_SYNC && NO_GKI
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+	default SW_SYNC
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+	help
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+	  To get current fence point and timeline status.
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+
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+config UDMABUF
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+	bool "userspace dmabuf misc driver"
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+	default n
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+	depends on DMA_SHARED_BUFFER
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+	depends on MEMFD_CREATE || COMPILE_TEST
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+	help
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+	  A driver to let userspace turn memfd regions into dma-bufs.
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+	  Qemu can use this to create host dmabufs for guest framebuffers.
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+
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+config DMABUF_MOVE_NOTIFY
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+	bool "Move notify between drivers (EXPERIMENTAL)"
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+	default n
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+	depends on DMA_SHARED_BUFFER
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+	help
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+	  Don't pin buffers if the dynamic DMA-buf interface is available on
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+	  both the exporter as well as the importer. This fixes a security
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+	  problem where userspace is able to pin unrestricted amounts of memory
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+	  through DMA-buf.
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+	  This is marked experimental because we don't yet have a consistent
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+	  execution context and memory management between drivers.
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+
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+config DMABUF_SELFTESTS
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+	tristate "Selftests for the dma-buf interfaces"
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+	default n
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+	depends on DMA_SHARED_BUFFER
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 menuconfig DMABUF_HEAPS
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 	bool "DMA-BUF Userland Memory Heaps"
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 	  allows userspace to allocate dma-bufs that can be shared
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 	  between drivers.
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-config DMABUF_PAGE_POOL
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-	bool "DMA-BUF page-pool library"
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-	depends on !DMABUF_HEAPS
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+menuconfig DMABUF_SYSFS_STATS
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+	bool "DMA-BUF sysfs statistics"
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+	depends on DMA_SHARED_BUFFER
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 	help
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-	  Choose this option to enable the DMA-BUF page-pool library.
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+	   Choose this option to enable DMA-BUF sysfs statistics
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+	   in location /sys/kernel/dmabuf/buffers.
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+
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+	   /sys/kernel/dmabuf/buffers/<inode_number> will contain
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+	   statistics for the DMA-BUF with the unique inode number
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+	   <inode_number>.
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 source "drivers/dma-buf/heaps/Kconfig"
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+source "drivers/dma-buf/rk_heaps/Kconfig"
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 endmenu