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broadcom/vc5: Add a QPU helper for instructions using the TLB.

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This will be used for detecting last thread segment in register spilling.
This commit is contained in:
Eric Anholt
2018-03-19 11:30:27 -07:00
parent 09c4dd1971
commit c3a504f470
2 changed files with 23 additions and 0 deletions
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22
src/broadcom/qpu/qpu_instr.c
View File

@@ -568,6 +568,28 @@ v3d_qpu_add_op_writes_vpm(enum v3d_qpu_add_op op)
}
}
bool
v3d_qpu_uses_tlb(const struct v3d_qpu_instr *inst)
{
if (inst->sig.ldtlb ||
inst->sig.ldtlbu)
return true;
if (inst->type == V3D_QPU_INSTR_TYPE_ALU) {
if (inst->alu.add.magic_write &&
v3d_qpu_magic_waddr_is_tlb(inst->alu.add.waddr)) {
return true;
}
if (inst->alu.mul.magic_write &&
v3d_qpu_magic_waddr_is_tlb(inst->alu.mul.waddr)) {
return true;
}
}
return false;
}
bool
v3d_qpu_writes_tmu(const struct v3d_qpu_instr *inst)
{

1
src/broadcom/qpu/qpu_instr.h
View File

@@ -437,6 +437,7 @@ bool v3d_qpu_magic_waddr_is_tmu(enum v3d_qpu_waddr waddr) ATTRIBUTE_CONST;
bool v3d_qpu_magic_waddr_is_tlb(enum v3d_qpu_waddr waddr) ATTRIBUTE_CONST;
bool v3d_qpu_magic_waddr_is_vpm(enum v3d_qpu_waddr waddr) ATTRIBUTE_CONST;
bool v3d_qpu_magic_waddr_is_tsy(enum v3d_qpu_waddr waddr) ATTRIBUTE_CONST;
bool v3d_qpu_uses_tlb(const struct v3d_qpu_instr *inst) ATTRIBUTE_CONST;
bool v3d_qpu_writes_tmu(const struct v3d_qpu_instr *inst) ATTRIBUTE_CONST;
bool v3d_qpu_writes_r3(const struct v3d_device_info *devinfo,
const struct v3d_qpu_instr *instr) ATTRIBUTE_CONST;