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2018-10-17PCI/P2PDMA: Add P2P DMA driver writer's documentationLogan Gunthorpe2-0/+146
Add a restructured text file describing how to write drivers with support for P2P DMA transactions. The document describes how to use the APIs that were added in the previous few commits. Also adds an index for the PCI documentation tree even though this is the only PCI document that has been converted to restructured text at this time. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Jonathan Corbet <corbet@lwn.net>
2018-10-17docs-rst: Add a new directory for PCI documentationLogan Gunthorpe2-0/+68
Add a new directory in the driver API guide for PCI-specific documentation. This is in preparation for adding a new PCI P2P DMA driver writers guide which will go in this directory. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Logan Gunthorpe <logang@deltatee.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Sanyog Kale <sanyog.r.kale@intel.com> Cc: Sagar Dharia <sdharia@codeaurora.org>