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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2fab6e7542
drm_mode_page_flip_ioctl() cannot deal with the in between phase of the transitioning to atomic modeset support. Once we start using drm_helper_crtc_mode_set(), we start setting plane->state on the primary plane. But we are not fully atomic yet so then set both plane-state->fb and plane->fb. If both plane-state->fb and plane->fb are set drm_mode_page_flip_ioctl() gets confused and stops calling drm_framebuffer_get() on the new fb while still calling drm_framebuffer_put() on the old fb. The current page_flip implementation expects drm_mode_page_flip_ioctl() to take care of both and once we switch to drm_atomic_helper_page_flip() that will expect neither to be done, taking care of both itself. So for the transition we need to remove page_flip support and then after the transition is complete and we set DRIVER_ATOMIC in our driver_features, we can start using drm_atomic_helper_page_flip(). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
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| .clang-format | ||
| .cocciconfig | ||
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| README | ||
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.