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This the beginning of an API for in-kernel clients. First out is a way to get a framebuffer backed by a dumb buffer. Only GEM drivers are supported. The original idea of using an exported dma-buf was dropped because it also creates an anonomous file descriptor which doesn't work when the buffer is created from a kernel thread. The easy way out is to use drm_driver.gem_prime_vmap to get the virtual address, which requires a GEM object. This excludes the vmwgfx driver which is the only non-GEM driver apart from the legacy ones. A solution for vmwgfx will have to be worked out later if it wants to support the client API which it probably will when we have a bootsplash client. Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180703160354.59955-2-noralf@tronnes.org |
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.. | ||
bridge | ||
amdgpu.rst | ||
conf.py | ||
drivers.rst | ||
drm-client.rst | ||
drm-internals.rst | ||
drm-kms-helpers.rst | ||
drm-kms.rst | ||
drm-mm.rst | ||
drm-uapi.rst | ||
i915.rst | ||
index.rst | ||
introduction.rst | ||
kms-properties.csv | ||
meson.rst | ||
pl111.rst | ||
tegra.rst | ||
tinydrm.rst | ||
todo.rst | ||
tve200.rst | ||
v3d.rst | ||
vc4.rst | ||
vga-switcheroo.rst | ||
vgaarbiter.rst | ||
xen-front.rst |