[RFC PATCH v3 03/13] bootsplash: Flush framebuffer after drawing

2018-01-17 Thread Max Staudt
Framebuffers with deferred I/O need to be flushed to the screen explicitly, since we use neither the mmap nor the file I/O abstractions that handle this for userspace FB clients. Example: xenfb Some framebuffer drivers implement lazy access to the screen without actually exposing a fbdefio

[RFC PATCH v3 03/13] bootsplash: Flush framebuffer after drawing

2018-01-17 Thread Max Staudt
Framebuffers with deferred I/O need to be flushed to the screen explicitly, since we use neither the mmap nor the file I/O abstractions that handle this for userspace FB clients. Example: xenfb Some framebuffer drivers implement lazy access to the screen without actually exposing a fbdefio