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authorAlyssa Rosenzweig <[email protected]>2020-05-12 13:34:52 -0400
committerMarge Bot <[email protected]>2020-05-12 22:30:41 +0000
commit344dd914972f9ddcef814a3cf08f832708c33146 (patch)
treec4e91b667e3f42c8ec86120284fc0b21120bf08e /src
parent9a7f0e268b7baeb92d8d7d2989beb43550262406 (diff)
pan/mdg: Use analysis to set .cont/.last flags
Corresponds roughly to what we analyze. Note that "terminate AND execute" is a contradiction (rather: it's equivalent to just terminating), hence why there are only three possibilities for the states of the flags: .cont = continue, don't execute .last = don't continue, don't execute .cont.last = continue and execute Signed-off-by: Alyssa Rosenzweig <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5014>
Diffstat (limited to 'src')
-rw-r--r--src/panfrost/midgard/midgard_emit.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/src/panfrost/midgard/midgard_emit.c b/src/panfrost/midgard/midgard_emit.c
index 98844169fae..b62052b1317 100644
--- a/src/panfrost/midgard/midgard_emit.c
+++ b/src/panfrost/midgard/midgard_emit.c
@@ -508,16 +508,8 @@ emit_binary_bundle(compiler_context *ctx,
ctx->texture_op_count--;
if (mir_op_computes_derivatives(ctx->stage, ins->texture.op)) {
- bool continues = ctx->texture_op_count > 0;
-
- /* Control flow complicates helper invocation
- * lifespans, so for now just keep helper threads
- * around indefinitely with loops. TODO: Proper
- * analysis */
- continues |= ctx->loop_count > 0;
-
- ins->texture.cont = continues;
- ins->texture.last = !continues;
+ ins->texture.cont = !ins->helper_terminate;
+ ins->texture.last = ins->helper_terminate || ins->helper_execute;
} else {
ins->texture.cont = ins->texture.last = 1;
}