v3d: implement simultaneous peripheral access exceptions for V3D 4.1+

[mesa.git] / src / broadcom / qpu / qpu_instr.c

diff --git a/src/broadcom/qpu/qpu_instr.c b/src/broadcom/qpu/qpu_instr.c
index 12a9c32c83108a2dabd697198adcd54bffdf2de7..66e53a6accdc11ca22bc9812d34f232bf0740936 100644 (file)
--- a/src/broadcom/qpu/qpu_instr.c
+++ b/src/broadcom/qpu/qpu_instr.c
@@ -682,6 +682,16 @@ v3d_qpu_writes_tmu(const struct v3d_qpu_instr *inst)
                   v3d_qpu_magic_waddr_is_tmu(inst->alu.mul.waddr))));
 }
 
+bool
+v3d_qpu_writes_tmu_not_tmuc(const struct v3d_qpu_instr *inst)
+{
+        return v3d_qpu_writes_tmu(inst) &&
+               (!inst->alu.add.magic_write ||
+                inst->alu.add.waddr != V3D_QPU_WADDR_TMUC) &&
+               (!inst->alu.mul.magic_write ||
+                inst->alu.mul.waddr != V3D_QPU_WADDR_TMUC);
+}
+
 bool
 v3d_qpu_reads_vpm(const struct v3d_qpu_instr *inst)
 {
@@ -751,9 +761,6 @@ bool
 v3d_qpu_writes_r4(const struct v3d_device_info *devinfo,
                   const struct v3d_qpu_instr *inst)
 {
-        if (inst->sig.ldtmu)
-                return true;
-
         if (inst->type == V3D_QPU_INSTR_TYPE_ALU) {
                 if (inst->alu.add.magic_write &&
                     (inst->alu.add.waddr == V3D_QPU_WADDR_R4 ||
@@ -768,8 +775,10 @@ v3d_qpu_writes_r4(const struct v3d_device_info *devinfo,
                 }
         }
 
-        if (v3d_qpu_sig_writes_address(devinfo, &inst->sig) &&
-            inst->sig_magic && inst->sig_addr == V3D_QPU_WADDR_R4) {
+        if (v3d_qpu_sig_writes_address(devinfo, &inst->sig)) {
+                if (inst->sig_magic && inst->sig_addr == V3D_QPU_WADDR_R4)
+                        return true;
+        } else if (inst->sig.ldtmu) {
                 return true;
         }