From: Eric Anholt <eric@anholt.net>
Date: Mon, 15 Apr 2019 23:36:17 +0000 (-0700)
Subject: v3d: Always set up the qregs for CSD payload.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=697e2e1f268ef464cfbde01719757e865b86ecbf;p=mesa.git

v3d: Always set up the qregs for CSD payload.

We were failing to set up payload[1] for use by LocalInvocationIndex/ID
and shared variable accesses if gl_WorkGroupID/gl_GlobalInvocationID
wasn't used (possibly because you only have one workgroup).  You're always
going to use payload[1], and payload[0] is common enough and we have DCE
in the backend to clean it up if it happens to not be used.
---

diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index dd4d055d68a..9a4705a3de6 100644
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -2273,16 +2273,8 @@ nir_to_vir(struct v3d_compile *c)
                                                       V3D_QPU_WADDR_SYNC));
                 }
 
-                if (c->s->info.system_values_read &
-                    ((1ull << SYSTEM_VALUE_LOCAL_INVOCATION_INDEX) |
-                     (1ull << SYSTEM_VALUE_WORK_GROUP_ID))) {
-                        c->cs_payload[0] = vir_MOV(c, vir_reg(QFILE_REG, 0));
-                }
-                if ((c->s->info.system_values_read &
-                     ((1ull << SYSTEM_VALUE_WORK_GROUP_ID))) ||
-                    c->s->info.cs.shared_size) {
-                        c->cs_payload[1] = vir_MOV(c, vir_reg(QFILE_REG, 2));
-                }
+                c->cs_payload[0] = vir_MOV(c, vir_reg(QFILE_REG, 0));
+                c->cs_payload[1] = vir_MOV(c, vir_reg(QFILE_REG, 2));
 
                 /* Set up the division between gl_LocalInvocationIndex and
                  * wg_in_mem in the payload reg.