dma-buf/sync_file: de-stage sync_file
sync_file is useful to connect one or more fences to the file. The file is used by userspace to track fences between drivers that share DMA bufs. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -114,6 +114,8 @@ source "drivers/rtc/Kconfig"
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source "drivers/dma/Kconfig"
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source "drivers/dma/Kconfig"
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source "drivers/dma-buf/Kconfig"
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source "drivers/dca/Kconfig"
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source "drivers/dca/Kconfig"
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source "drivers/auxdisplay/Kconfig"
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source "drivers/auxdisplay/Kconfig"
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@ -0,0 +1,11 @@
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menu "DMABUF options"
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config SYNC_FILE
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bool "sync_file support for fences"
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default n
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select ANON_INODES
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select DMA_SHARED_BUFFER
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---help---
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This option enables the fence framework synchronization to export
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sync_files to userspace that can represent one or more fences.
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endmenu
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@ -1 +1,2 @@
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obj-y := dma-buf.o fence.o reservation.o seqno-fence.o
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obj-y := dma-buf.o fence.o reservation.o seqno-fence.o
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obj-$(CONFIG_SYNC_FILE) += sync_file.o
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@ -38,6 +38,7 @@ config SW_SYNC
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bool "Software synchronization objects"
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bool "Software synchronization objects"
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default n
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default n
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depends on SYNC
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depends on SYNC
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depends on SYNC_FILE
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---help---
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---help---
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A sync object driver that uses a 32bit counter to coordinate
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A sync object driver that uses a 32bit counter to coordinate
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synchronization. Useful when there is no hardware primitive backing
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synchronization. Useful when there is no hardware primitive backing
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@ -4,5 +4,5 @@ obj-y += ion/
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obj-$(CONFIG_ASHMEM) += ashmem.o
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obj-$(CONFIG_ASHMEM) += ashmem.o
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obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o
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obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER) += lowmemorykiller.o
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obj-$(CONFIG_SYNC) += sync_file.o sync.o sync_debug.o
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obj-$(CONFIG_SYNC) += sync.o sync_debug.o
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obj-$(CONFIG_SW_SYNC) += sw_sync.o
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obj-$(CONFIG_SW_SYNC) += sw_sync.o
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