Till Wegmueller f005dccd67 Update ADR-011: Add bare-metal framebuffer backend (Tier 0) ... illumos has /dev/fb0 via the gfxp_bitmap driver on UEFI GOP systems, exposing the classic SunOS fbio(4I) interface. Userspace can mmap the framebuffer and write pixels directly -- proven by xf86-video-illumosfb. New four-tier architecture: - Tier 0: Bare-metal /dev/fb0 (illumos fbio + Linux fbdev). No X11. - Tier 1: X11 SHM (portable fallback, also dev mode) - Tier 2: Loopback shared memory (co-located optimization) - Tier 3: DRM/KMS (Linux, rare illumos) Includes implementation sketch with SIMD non-temporal stores for write-combining memory (SSE2/AVX2/AVX-512 runtime selection).		2026-03-28 22:43:40 +01:00
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adr	Update ADR-011: Add bare-metal framebuffer backend (Tier 0)	2026-03-28 22:43:40 +01:00
plans	Add greeter/session-launch architecture, clarify scope boundary	2026-03-28 21:35:18 +01:00