[igt-dev] [PATCH i-g-t v4 0/6] Introduce blt_cmd_info struct

[Karolina Stolarek]

This patch series introduces a new way of checking if a specific
tiling format and/or blitter copy command is supported on
the current platform. Instead of using functions with hardcoded
devices, now we store information about available features in
blt_cmd_info struct, each of the instances connected to the
intel_device_info definitions.

Two patches that follow the introduction of blt_cmd_info and 
intel_device_info modification are a prep work for the fast
copy test -- extracting needed functions and updating
fill_data() to support TileYF (available only for Pre-gen12).

In addition to this, the patchset adds two fast copy tests: basic
fast-copy where two blit copies are done in separate batches, and
fast-copy-emit which uses emit_blt_fast_copy() and manually
crafts two copies in one batch.

v4:
  - Move the inclusion of igt_core.h to intel_blt_info.c
    (Kamil/Petri)
  - Rename __MAX_TILING and __MAX_CMD so they are blitter-specific 
    (Kamil)
  - Use BIT() macro from intel_chipset.h (Zbigniew)
  - Check for empty blt_tiling_info in tiling_info(), and warn
    about it
  - Change blt_cmd_info declarations in intel_blt_info. Add a
    separate file for their definitions (intel_tiling_info.c).
    Update lib/mason.build to reflect that change (Zbigniew)
  - Remove definitions for ATS-M, as we can reuse dg2's (Zbigniew)
  - Add EXEC_OBJECT_WRITE flag for dest in fast-copy-emit subtest
    (Zbigniew)

v3:
  - Rewrite blt_tiling_type to be contiguous (Zbigniew, Kamil) 
  - Add BLT_BIT macro to create bit flags during .supported_tiling
    field initialization (Zbigniew)
  - Undo accidental line deletion in intel_chipset.c (Kamil)
  - Add __TILING_MAX to blt_tiling_type (Zbigniew)
  - Use asprintf when creating strings of subtest and PNG files
    names (Zbigniew)
  - Delete a duplicate WRITE_PNG call in fast_copy test (Zbigniew)
  - Update documentation
  - Update year in copyright headers

Karolina Stolarek (6):
  i915/lib: Add new library for blitter and tiling formats
  lib: Update platform definitions with blitter information
  lib/i915_blt: Check for Tile-YF in fast_copy
  lib/i915_blt: Add common functions for blt_copy_object
  tests/gem_exercise_blt: Add fast-copy test
  tests/gem_exercise_blt: Add fast-copy-emit test

 .../igt-gpu-tools/igt-gpu-tools-docs.xml      |   1 +
 lib/i915/i915_blt.c                           | 195 +++++++--
 lib/i915/i915_blt.h                           |  48 ++-
 lib/i915/intel_blt_info.c                     | 156 +++++++
 lib/i915/intel_blt_info.h                     |  93 +++++
 lib/i915/intel_tiling_info.c                  |  87 ++++
 lib/intel_chipset.h                           |   4 +
 lib/intel_device_info.c                       |  47 +++
 lib/meson.build                               |  14 +-
 tests/i915/gem_ccs.c                          | 209 +++-------
 tests/i915/gem_exercise_blt.c                 | 387 ++++++++++++++++++
 tests/i915/gem_lmem_swapping.c                |  81 +---
 tests/meson.build                             |   1 +
 13 files changed, 1058 insertions(+), 265 deletions(-)
 create mode 100644 lib/i915/intel_blt_info.c
 create mode 100644 lib/i915/intel_blt_info.h
 create mode 100644 lib/i915/intel_tiling_info.c
 create mode 100644 tests/i915/gem_exercise_blt.c

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2.25.1