By default vmwgfx doesn't support vblanking or crc generation which makes it impossible to use various IGT tests to validate vmwgfx. Implement virtual kernel mode setting, which is mainly related to simulated vblank support. Code is very similar to amd's vkms and the vkms module itself, except that it's integrated with vmwgfx three different output technologies - legacy, screen object and screen targets. Make IGT's kms_vblank pass on vmwgfx and allows a lot of other IGT tests to run with vmwgfx. Support for vkms needs to be manually enabled by adding: guestinfo.vmwgfx.vkms_enable = "TRUE" somewhere in the vmx file, otherwise it's off by default. Signed-off-by: Zack Rusin <zack.rusin@broadcom.com> Acked-by: Martin Krastev <martin.krastev@broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240412025511.78553-2-zack.rusin@broadcom.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 reStructuredText markup notation. 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.
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