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nir: Add new system values and intrinsics for dealing with CL work offsets

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New intrinsics are added for global invocation IDs and work group IDs to
deal with offsets in both. The only one of these that needs a system value
is global invocation offset, for CL's get_global_offset().

Note that CL requires very large work group sizes, so these intrinsics
are modified to be able to use 64bit values, for 64bit SPIR-V.

Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5891>
This commit is contained in:
Jesse Natalie
2020-07-27 16:56:21 -07:00
committed by Marge Bot
parent 6b1515cb84
commit 41e4eb9948
13 changed files with 41 additions and 29 deletions
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14
src/compiler/nir/nir_intrinsics.py
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@@ -586,9 +586,13 @@ system_value("tess_level_inner_default", 2)
system_value("patch_vertices_in", 1)
system_value("local_invocation_id", 3)
system_value("local_invocation_index", 1)
system_value("work_group_id", 3)
# zero_base indicates it starts from 0 for the current dispatch
# non-zero_base indicates the base is included
system_value("work_group_id", 3, bit_sizes=[32, 64])
system_value("work_group_id_zero_base", 3)
system_value("base_work_group_id", 3, bit_sizes=[32, 64])
system_value("user_clip_plane", 4, indices=[UCP_ID])
system_value("num_work_groups", 3)
system_value("num_work_groups", 3, bit_sizes=[32, 64])
system_value("helper_invocation", 1, bit_sizes=[1, 32])
system_value("alpha_ref_float", 1)
system_value("layer_id", 1)
@@ -603,7 +607,13 @@ system_value("subgroup_lt_mask", 0, bit_sizes=[32, 64])
system_value("num_subgroups", 1)
system_value("subgroup_id", 1)
system_value("local_group_size", 3)
# note: the definition of global_invocation_id_zero_base is based on
# (work_group_id * local_group_size) + local_invocation_id.
# it is *not* based on work_group_id_zero_base, meaning the work group
# base is already accounted for, and the global base is additive on top of that
system_value("global_invocation_id", 3, bit_sizes=[32, 64])
system_value("global_invocation_id_zero_base", 3, bit_sizes=[32, 64])
system_value("base_global_invocation_id", 3, bit_sizes=[32, 64])
system_value("global_invocation_index", 1, bit_sizes=[32, 64])
system_value("work_dim", 1)
system_value("line_width", 1)