42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
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<div style="text-align: center; display: grid; grid-template-columns: 1fr 1fr;">
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<div> <!-- Left pane -->
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<!-- Title -->
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## Linux Kernel
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- Communicates "directly" with hardware
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- Provides drivers
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- Initializes hardware
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- Provides HAL
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- Provides userspace APIs
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- Provides planes for userspace to draw to
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</div>
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<div> <!-- Right pane -->
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<!-- Title -->
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 <!-- .element: style="width: 50%;" -->
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</div>
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Notes:
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Then there's the beloved Linux kernel.
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Being that it is a kernel, one of it's main jobs is to communicate with the hardware. It does this through the use of drivers,
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which provides the rest of the kernel with a stable interface.
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Popular examples of these drivers are:
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- i915 and xe, which are for Intel GPUs
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- amdgpu, which is for AMD GPUs
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- And nouveau, which is for NVIDIA.
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There are quite a few more than this, but I'd be here all day if I talked about them.
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The kernel also brings up the hardware to a usable state so that userspace can communicate with it.
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Userspace can communicate with the graphics hardware using a Hardware Abstraction Layer, which in the kernel
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is provided by the Direct Rendering Manager and the Kernel Mode Setting interface.
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[comment]: # (!!!) <!--------------------------------------------------------->
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