[Intel-gfx] [RFC 00/38] PPGTT dynamic page allocations

[Michel Thierry]

This is based on the first 55 patches of Ben's 48b addressing work, taking
into consideration the latest changes in (mainly aliasing) ppgtt rules.

Because of these changes in the tree, the first 17 patches of the original
series are no longer needed, and some patches required more rework than others.

For GEN8, it has also been extended to work in logical ring submission (lrc)
mode, as it looks like it will be the preferred mode of operation.
I also tried to update the lrc code at the same time the ppgtt refactoring
occurred, leaving only one patch that is exclusively for lrc.

I'm asking for comments, as this is the foundation for 48b virtual addressing
in Broadwell. 

This list can be seen in 3 parts:
[01-24] Include code rework for PPGTT (all GENs).
[25-28] Adds page table allocation for GEN6/GEN7
[29-38] Enables dynamic allocation in GEN8. It is enabled for both legacy
and execlist submission modes.

Ben Widawsky (37):
  drm/i915: Add some extra guards in evict_vm
  drm/i915/trace: Fix offsets for 64b
  drm/i915: Wrap VMA binding
  drm/i915: Make pin global flags explicit
  drm/i915: Split out aliasing binds
  drm/i915: fix gtt_total_entries()
  drm/i915: Rename to GEN8_LEGACY_PDPES
  drm/i915: Split out verbose PPGTT dumping
  drm/i915: s/pd/pdpe, s/pt/pde
  drm/i915: rename map/unmap to dma_map/unmap
  drm/i915: Setup less PPGTT on failed pagedir
  drm/i915: Un-hardcode number of page directories
  drm/i915: Make gen6_write_pdes gen6_map_page_tables
  drm/i915: Range clearing is PPGTT agnostic
  drm/i915: Page table helpers, and define renames
  drm/i915: construct page table abstractions
  drm/i915: Complete page table structures
  drm/i915: Create page table allocators
  drm/i915: Generalize GEN6 mapping
  drm/i915: Clean up pagetable DMA map & unmap
  drm/i915: Always dma map page table allocations
  drm/i915: Consolidate dma mappings
  drm/i915: Always dma map page directory allocations
  drm/i915: Track GEN6 page table usage
  drm/i915: Extract context switch skip logic
  drm/i915: Track page table reload need
  drm/i915: Initialize all contexts
  drm/i915: Finish gen6/7 dynamic page table allocation
  drm/i915/bdw: Use dynamic allocation idioms on free
  drm/i915/bdw: pagedirs rework allocation
  drm/i915/bdw: pagetable allocation rework
  drm/i915/bdw: Make the pdp switch a bit less hacky
  drm/i915: num_pd_pages/num_pd_entries isn't useful
  drm/i915: Extract PPGTT param from pagedir alloc
  drm/i915/bdw: Split out mappings
  drm/i915/bdw: begin bitmap tracking
  drm/i915/bdw: Dynamic page table allocations

Michel Thierry (1):
  drm/i915/bdw: Dynamic page table allocations in lrc mode

 drivers/gpu/drm/i915/i915_debugfs.c        |   78 +-
 drivers/gpu/drm/i915/i915_drv.h            |   22 +-
 drivers/gpu/drm/i915/i915_gem.c            |   35 +-
 drivers/gpu/drm/i915/i915_gem_context.c    |   64 +-
 drivers/gpu/drm/i915/i915_gem_evict.c      |    3 +
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |   20 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c        | 1306 ++++++++++++++++++++--------
 drivers/gpu/drm/i915/i915_gem_gtt.h        |  305 ++++++-
 drivers/gpu/drm/i915/i915_gem_stolen.c     |    2 +-
 drivers/gpu/drm/i915/i915_trace.h          |  124 ++-
 drivers/gpu/drm/i915/intel_lrc.c           |   80 +-
 11 files changed, 1557 insertions(+), 482 deletions(-)

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2.0.3