PS3 GPU DRM Driver

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To fully exploit the PS3 graphics potential, developer really need a proper GPU DRM driver for PS3. The problem is that Linux kernel DRM framework is very complex and not well documented.

Linux Kernel DRM Framework[edit | edit source]

Kernel Mode Setting (KMS)[edit | edit source]

  • CRTC -> Encoder -> Connector
  • PS3 has two video out connectors: HDMI and AV multi
  • Use PS3 AV Manager to set resolution
  • ps3av_cmd_video_get_monitor_info can be used to get current supported resolutions
  • It seems that head A is connected to HDMI connector.

Translation Table Manager (TTM)[edit | edit source]

TTM is short for Translation Table Maps (?or Manager?) which was originally a new DRM map type that could be flipped into and out of a general translation table; for example an AGP or PCI Gart. Since then it has, a bit misleading, become the name of the functionality of the DRM unified memory manager for display memory. A white-paper describing the DRM memory manager can be found here.

  • Manages memory: video memory, GART memory and system memory.
  • Nouveau DRM driver e.g. manages video memory globally per device. We cannot do it because each context has its own video memory.

Milestones[edit | edit source]

  1. Create initial driver infrastructure (work in progress)
  2. Implement unaccelerated framebuffer console
  3. Add hardware acceleration to framebuffer console
  4. Implement IOCTLs for user-space applications
  5. Add PS3 GPU DRM support to libdrm and implement tests for it
  6. Implement X11 driver for PS3 GPU DRM
  7. Port some 3D open-source game to PS3 GPU DRM, e.g. quake or doom

Links[edit | edit source]

DRM User-Space[edit | edit source]

DRM Kernel-Space[edit | edit source]

PS3 Kernel Drivers[edit | edit source]

Linux
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