Module: Mesa
Branch: master
Commit: 77b4f30bae4100b2a80e961b89359e1fd1beed9d
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=77b4f30bae4100b2a80e961b89359e1fd1beed9d
Author: Eric Anholt <e...@anholt.net>
Date: Wed Apr 25 16:24:15 2018 -0700
broadcom/vc5: Add validation that we don't violate GFXH-1633 requirements.
We don't use ldunifa yet, but we will eventually for UBOs.
---
src/broadcom/compiler/qpu_validate.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/broadcom/compiler/qpu_validate.c
b/src/broadcom/compiler/qpu_validate.c
index b459d81b44..fb2ed123ab 100644
--- a/src/broadcom/compiler/qpu_validate.c
+++ b/src/broadcom/compiler/qpu_validate.c
@@ -124,6 +124,19 @@ qpu_validate_inst(struct v3d_qpu_validate_state *state,
struct qinst *qinst)
fail_instr(state, "LDUNIF after a LDVARY");
}
+ /* GFXH-1633 */
+ bool last_reads_ldunif = (state->last && (state->last->sig.ldunif ||
+ state->last->sig.ldunifrf));
+ bool last_reads_ldunifa = (state->last && (state->last->sig.ldunifa ||
+
state->last->sig.ldunifarf));
+ bool reads_ldunif = inst->sig.ldunif || inst->sig.ldunifrf;
+ bool reads_ldunifa = inst->sig.ldunifa || inst->sig.ldunifarf;
+ if ((last_reads_ldunif && reads_ldunifa) ||
+ (last_reads_ldunifa && reads_ldunif)) {
+ fail_instr(state,
+ "LDUNIF and LDUNIFA can't be next to each other");
+ }
+
int tmu_writes = 0;
int sfu_writes = 0;
int vpm_writes = 0;
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