170 lines
3.3 KiB
ReStructuredText
170 lines
3.3 KiB
ReStructuredText
Device drivers infrastructure
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=============================
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The Basic Device Driver-Model Structures
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----------------------------------------
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.. kernel-doc:: include/linux/device.h
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:internal:
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Device Drivers Base
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-------------------
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.. kernel-doc:: drivers/base/init.c
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:internal:
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.. kernel-doc:: drivers/base/driver.c
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:export:
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.. kernel-doc:: drivers/base/core.c
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:export:
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.. kernel-doc:: drivers/base/syscore.c
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:export:
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.. kernel-doc:: drivers/base/class.c
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:export:
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.. kernel-doc:: drivers/base/node.c
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:internal:
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.. kernel-doc:: drivers/base/firmware_class.c
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:export:
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.. kernel-doc:: drivers/base/transport_class.c
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:export:
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.. kernel-doc:: drivers/base/dd.c
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:export:
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.. kernel-doc:: include/linux/platform_device.h
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:internal:
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.. kernel-doc:: drivers/base/platform.c
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:export:
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.. kernel-doc:: drivers/base/bus.c
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:export:
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Buffer Sharing and Synchronization
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----------------------------------
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The dma-buf subsystem provides the framework for sharing buffers for
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hardware (DMA) access across multiple device drivers and subsystems, and
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for synchronizing asynchronous hardware access.
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This is used, for example, by drm "prime" multi-GPU support, but is of
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course not limited to GPU use cases.
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The three main components of this are: (1) dma-buf, representing a
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sg_table and exposed to userspace as a file descriptor to allow passing
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between devices, (2) fence, which provides a mechanism to signal when
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one device as finished access, and (3) reservation, which manages the
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shared or exclusive fence(s) associated with the buffer.
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dma-buf
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~~~~~~~
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.. kernel-doc:: drivers/dma-buf/dma-buf.c
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:export:
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.. kernel-doc:: include/linux/dma-buf.h
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:internal:
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reservation
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~~~~~~~~~~~
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.. kernel-doc:: drivers/dma-buf/reservation.c
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:doc: Reservation Object Overview
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.. kernel-doc:: drivers/dma-buf/reservation.c
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:export:
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.. kernel-doc:: include/linux/reservation.h
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:internal:
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fence
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~~~~~
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.. kernel-doc:: drivers/dma-buf/fence.c
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:export:
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.. kernel-doc:: include/linux/fence.h
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:internal:
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.. kernel-doc:: drivers/dma-buf/seqno-fence.c
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:export:
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.. kernel-doc:: include/linux/seqno-fence.h
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:internal:
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.. kernel-doc:: drivers/dma-buf/fence-array.c
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:export:
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.. kernel-doc:: include/linux/fence-array.h
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:internal:
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.. kernel-doc:: drivers/dma-buf/reservation.c
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:export:
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.. kernel-doc:: include/linux/reservation.h
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:internal:
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.. kernel-doc:: drivers/dma-buf/sync_file.c
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:export:
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.. kernel-doc:: include/linux/sync_file.h
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:internal:
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Device Drivers DMA Management
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-----------------------------
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.. kernel-doc:: drivers/base/dma-coherent.c
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:export:
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.. kernel-doc:: drivers/base/dma-mapping.c
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:export:
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Device Drivers Power Management
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-------------------------------
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.. kernel-doc:: drivers/base/power/main.c
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:export:
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Device Drivers ACPI Support
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---------------------------
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.. kernel-doc:: drivers/acpi/scan.c
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:export:
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.. kernel-doc:: drivers/acpi/scan.c
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:internal:
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Device drivers PnP support
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--------------------------
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.. kernel-doc:: drivers/pnp/core.c
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:internal:
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.. kernel-doc:: drivers/pnp/card.c
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:export:
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.. kernel-doc:: drivers/pnp/driver.c
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:internal:
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.. kernel-doc:: drivers/pnp/manager.c
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:export:
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.. kernel-doc:: drivers/pnp/support.c
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:export:
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Userspace IO devices
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--------------------
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.. kernel-doc:: drivers/uio/uio.c
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:export:
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.. kernel-doc:: include/linux/uio_driver.h
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:internal:
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