We want to be able to explicitly migrate objects between gem memory regions, initially for display and dma-buf, but there might be more use-cases coming up.
Introduce a gem migrate interface, add a selftest and use it for display fb pinning and dma-buf mapping.
This series should make accelerated desktop work on DG1 with DG1-enabled OpenGL.
v2: - Address review comments by Matthew Auld on patch 1/5. More details on the patch commit message. - Address a dma-buf locking issue pointed out by Michael Ruhl, and add a selftest to catch that issue moving forward. - Rebase the dma-buf migration patch on the above-mentioned fix.
Matthew Auld (1): drm/i915/gem: Introduce a selftest for the gem object migrate functionality
Thomas Hellström (4): drm/i915/gem: Implement object migration drm/i915/display: Migrate objects to LMEM if possible for display drm/i915/gem: Fix same-driver-another-instance dma-buf export drm/i915/gem: Migrate to system at dma-buf map time
drivers/gpu/drm/i915/display/intel_display.c | 5 +- drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 36 ++- drivers/gpu/drm/i915/gem/i915_gem_domain.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_lmem.c | 21 -- drivers/gpu/drm/i915/gem/i915_gem_object.c | 97 +++++++ drivers/gpu/drm/i915/gem/i915_gem_object.h | 12 +- .../gpu/drm/i915/gem/i915_gem_object_types.h | 9 + drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 69 +++-- drivers/gpu/drm/i915/gem/i915_gem_wait.c | 19 ++ .../drm/i915/gem/selftests/i915_gem_dmabuf.c | 83 +++++- .../drm/i915/gem/selftests/i915_gem_migrate.c | 237 ++++++++++++++++++ .../drm/i915/selftests/i915_live_selftests.h | 1 + 12 files changed, 546 insertions(+), 45 deletions(-) create mode 100644 drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c