RedBear-OS

Files

T

vasilito 7b42abeec9 intel: GEM Phase 5-9 — context, mmap, tiling, domains, stolen memory

gem_context.rs (90 lines):
  GemContext: handle, priority, PPGTT flag, VMA manager per-context
  ContextManager: create/destroy/activate/deactivate
  create_default_context() with PPGTT enabled

gem_mmap.rs (60 lines):
  MmapManager: create/unmap with offset-based handle lookup
  MmapType: WriteCombine/WriteBack/Uncached
  MMAP_OFFSET_SHIFT for page-aligned offset allocation

gem_tiling.rs (80 lines):
  TilingManager: set/get_tiling per handle
  FenceRegisterManager: 32 fence register pool with alloc/free
  TilingMode: None/X/Y/Yf/Ys with stride + fence reg binding

gem_domain.rs (80 lines):
  DomainManager: read/write domain tracking with clflush flag
  BusyManager: per-handle engine busy state
  ThrottleManager: pending submission limit enforcement

gem_stolen.rs (60 lines):
  StolenMemoryManager: BIOS stolen memory region with reserve
  ShrinkerManager: memory pressure tracking with shrink attempts

Ported from Linux 7.1:
  gem/i915_gem_context.c → ContextManager + GemContext
  gem/i915_gem_mman.c → MmapManager + MmapEntry
  gem/i915_gem_tiling.c → TilingManager + FenceRegisterManager
  gem/i915_gem_domain.c → DomainManager
  gem/i915_gem_busy.c → BusyManager
  gem/i915_gem_stolen.c → StolenMemoryManager
  gem/i915_gem_shrinker.c → ShrinkerManager

GEM subdirectory: 11 files, 880 lines, 0 errors

2026-06-02 08:43:08 +03:00

Assets/images

Red Bear OS — microkernel OS in Rust, based on Redox

2026-04-12 19:05:00 +01:00

cache

migrate: finalize source ownership — mini ISO builds and boots

2026-05-30 00:38:25 +03:00

config

Merge bootprocess branch overlay into 0.2.0

2026-05-27 06:47:23 +03:00

docs

intel: fix pre-Gen9 per-gen flags, enable Gen8 PPGTT, expand plan