On 09/06/2021 13:16, Thomas Hellström wrote:
On 6/9/21 1:48 PM, Daniel Vetter wrote:
On Wed, Jun 09, 2021 at 08:34:27AM +0200, Thomas Hellström wrote:
A couple of patches from Chris which implement pipelined migration and clears by atomically writing the PTEs in place before performing the actual blit.
Some ww utilities mainly for the accompanying selftests added by Thomas, as well as modified the above patches for ww locking- and lmem support.
The actual hook up to the i915 ttm backend is being worked on and not included yet, so this is considered to be an early review opportunity.
v2:
- A couple of minor style fixes pointed out by Matthew Auld
- Export and use intel_engine_destroy_pinned_context() to address a
ls CI warning / failure.
Just to check my understanding of the plan: These are the new windowed clear/blt functions which we plan to use everywhere, because less nasty locking implications? And the clear/blt we currently have in upstream will be replaced?
Yes. These are for LMEM clearing and migration. It looks to me like the other ones we have in upstream are actually unused except for selftests. We're actually using CPU clearing for now.
If so would be nice if this patch set includes that replacement work (I think right now all we have is the clear for lmem), including updating of selftests and stuff like that. Just to avoid having two ways to do the same thing in the driver.
OK, I'll have a look at stripping the existing code. If we need it moving forward, we can always re-add.
Some low hanging fruit would be all the client_blt stuff which can for sure be deleted now.
/Thomas
-Daniel
Chris Wilson (6): drm/i915/gt: Add an insert_entry for gen8_ppgtt drm/i915/gt: Add a routine to iterate over the pagetables of a GTT drm/i915/gt: Export the pinned context constructor and destructor drm/i915/gt: Pipelined page migration drm/i915/gt: Pipelined clear drm/i915/gt: Setup a default migration context on the GT
Thomas Hellström (3): drm/i915: Reference objects on the ww object list drm/i915: Break out dma_resv ww locking utilities to separate files drm/i915: Introduce a ww transaction helper
drivers/gpu/drm/i915/Makefile | 2 + drivers/gpu/drm/i915/gem/i915_gem_object.h | 9 +- drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 68 ++ drivers/gpu/drm/i915/gt/intel_engine.h | 12 + drivers/gpu/drm/i915/gt/intel_engine_cs.c | 27 +- drivers/gpu/drm/i915/gt/intel_gpu_commands.h | 2 + drivers/gpu/drm/i915/gt/intel_gt.c | 4 + drivers/gpu/drm/i915/gt/intel_gt_types.h | 3 + drivers/gpu/drm/i915/gt/intel_gtt.h | 7 + drivers/gpu/drm/i915/gt/intel_migrate.c | 685 ++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_migrate.h | 65 ++ drivers/gpu/drm/i915/gt/intel_migrate_types.h | 15 + drivers/gpu/drm/i915/gt/intel_renderstate.h | 1 + drivers/gpu/drm/i915/gt/intel_ring.h | 1 + drivers/gpu/drm/i915/gt/selftest_migrate.c | 671 +++++++++++++++++ drivers/gpu/drm/i915/i915_gem.c | 52 -- drivers/gpu/drm/i915/i915_gem.h | 12 - drivers/gpu/drm/i915/i915_gem_ww.c | 63 ++ drivers/gpu/drm/i915/i915_gem_ww.h | 50 ++ .../drm/i915/selftests/i915_live_selftests.h | 1 + .../drm/i915/selftests/i915_perf_selftests.h | 1 + 21 files changed, 1675 insertions(+), 76 deletions(-) create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate.c create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate.h create mode 100644 drivers/gpu/drm/i915/gt/intel_migrate_types.h create mode 100644 drivers/gpu/drm/i915/gt/selftest_migrate.c create mode 100644 drivers/gpu/drm/i915/i915_gem_ww.c create mode 100644 drivers/gpu/drm/i915/i915_gem_ww.h
-- 2.31.1
Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx