This is mainly a pre-check that the core TTM changes for the initial i915 TTM patch series look reasonably ok.
Main thing is we add the new page-based iomem memcpy util to TTM, and for some speed the copy-from-wc-x86-only prefetching memcpy to core drm. Note that the legacy memcpy path is largely untested. Perhaps can give it some testing on vmwgfx.
A bugfix and some minor optimization for the ttm_bo_pipeline_gutting() idle case
Finally allow the frequently-pinning i915 driver to block swapping of pinned memory that is still on the LRU.
If OK, I'd like to include these as a part of the i915 series.
Cc: Christian König christian.koenig@amd.com Cc: Dave Airlie airlied@gmail.com Cc: Daniel Vetter daniel.vetter@ffwll.ch
Thomas Hellström (5): drm/ttm: Add a generic TTM memcpy move for page-based iomem drm, drm/i915: Move the memcpy_from_wc functionality to core drm drm/ttm: Use drm_memcpy_from_wc for TTM bo moves drm/ttm: Document and optimize ttm_bo_pipeline_gutting() drm/ttm, drm/amdgpu: Allow the driver some control over swapping
drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 + drivers/gpu/drm/drm_drv.c | 2 + .../drm/{i915/i915_memcpy.c => drm_memcpy.c} | 31 +- drivers/gpu/drm/i915/Makefile | 1 - .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 4 +- drivers/gpu/drm/i915/gem/i915_gem_object.c | 5 +- drivers/gpu/drm/i915/gt/selftest_reset.c | 7 +- drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 11 +- drivers/gpu/drm/i915/i915_cmd_parser.c | 4 +- drivers/gpu/drm/i915/i915_drv.c | 2 - drivers/gpu/drm/i915/i915_gpu_error.c | 8 +- drivers/gpu/drm/i915/i915_memcpy.h | 34 -- .../drm/i915/selftests/intel_memory_region.c | 7 +- drivers/gpu/drm/ttm/ttm_bo.c | 61 +- drivers/gpu/drm/ttm/ttm_bo_util.c | 547 ++++++++++++------ drivers/gpu/drm/ttm/ttm_tt.c | 9 + include/drm/drm_memcpy.h | 41 ++ include/drm/ttm/ttm_bo_driver.h | 94 +++ include/drm/ttm/ttm_tt.h | 10 + 20 files changed, 614 insertions(+), 270 deletions(-) rename drivers/gpu/drm/{i915/i915_memcpy.c => drm_memcpy.c} (84%) delete mode 100644 drivers/gpu/drm/i915/i915_memcpy.h create mode 100644 include/drm/drm_memcpy.h