Module: Mesa
Branch: master
Commit: 089c32eefd2f9afcbfc87349beacbdf9d005cfac
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=089c32eefd2f9afcbfc87349beacbdf9d005cfac
Author: Eric Anholt <e...@anholt.net>
Date: Wed Apr 25 16:16:27 2018 -0700
broadcom/vc5: Add validation that we don't violate GFXH-1625 requirements.
We don't use TMUWT yet, but we will once we do SSBOs.
---
src/broadcom/compiler/qpu_validate.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/broadcom/compiler/qpu_validate.c
b/src/broadcom/compiler/qpu_validate.c
index 492f2e64d0..b459d81b44 100644
--- a/src/broadcom/compiler/qpu_validate.c
+++ b/src/broadcom/compiler/qpu_validate.c
@@ -247,6 +247,11 @@ qpu_validate_inst(struct v3d_qpu_validate_state *state,
struct qinst *qinst)
if (v3d_qpu_sig_writes_address(devinfo, &inst->sig))
fail_instr(state, "RF write after THREND");
+
+ /* GFXH-1625: No TMUWT in the last instruction */
+ if (state->last_thrsw_ip - state->ip == 2 &&
+ inst->alu.add.op == V3D_QPU_A_TMUWT)
+ fail_instr(state, "TMUWT in last instruction");
}
if (inst->type == V3D_QPU_INSTR_TYPE_BRANCH) {
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