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c34a997d03
User framebuffers are created with either bo->pages or bo->vaddr set, depending on whether or not an IOMMU is present. On the other hand, the framebuffer created for fbdev emulation has a vaddr mapping made if bo->pages is set after creation. This is set up in fbdev probe. Remove the special case unmapping from the general-purpose framebuffer destroy, and move it to fbdev teardown. Signed-off-by: Daniel Stone <daniels@collabora.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-tegra@vger.kernel.org Signed-off-by: Thierry Reding <treding@nvidia.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.