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broadcom/vc5: Introduce v3d_qpu_reads_vpm()/v3d_qpu_writes_vpm().

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These helpers will be used in register spilling to determine where to add
a last thrsw if needed, and might help refactor QPU scheduling.
This commit is contained in:
Eric Anholt
2018-03-19 11:03:47 -07:00
parent 407f21ef1b
commit 09c4dd1971
2 changed files with 35 additions and 4 deletions
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35
src/broadcom/qpu/qpu_instr.c
View File

@@ -535,7 +535,7 @@ v3d_qpu_magic_waddr_is_tsy(enum v3d_qpu_waddr waddr)
}
static bool
v3d_qpu_add_op_uses_vpm(enum v3d_qpu_add_op op)
v3d_qpu_add_op_reads_vpm(enum v3d_qpu_add_op op)
{
switch (op) {
case V3D_QPU_A_VPMSETUP:
@@ -547,6 +547,18 @@ v3d_qpu_add_op_uses_vpm(enum v3d_qpu_add_op op)
case V3D_QPU_A_LDVPMP:
case V3D_QPU_A_LDVPMG_IN:
case V3D_QPU_A_LDVPMG_OUT:
return true;
default:
return false;
}
}
static bool
v3d_qpu_add_op_writes_vpm(enum v3d_qpu_add_op op)
{
switch (op) {
case V3D_QPU_A_VPMSETUP:
case V3D_QPU_A_VPMWT:
case V3D_QPU_A_STVPMV:
case V3D_QPU_A_STVPMD:
case V3D_QPU_A_STVPMP:
@@ -567,13 +579,24 @@ v3d_qpu_writes_tmu(const struct v3d_qpu_instr *inst)
}
bool
v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst)
v3d_qpu_reads_vpm(const struct v3d_qpu_instr *inst)
{
if (inst->sig.ldvpm)
return true;
if (inst->type == V3D_QPU_INSTR_TYPE_ALU) {
if (v3d_qpu_add_op_uses_vpm(inst->alu.add.op))
if (v3d_qpu_add_op_reads_vpm(inst->alu.add.op))
return true;
}
return false;
}
bool
v3d_qpu_writes_vpm(const struct v3d_qpu_instr *inst)
{
if (inst->type == V3D_QPU_INSTR_TYPE_ALU) {
if (v3d_qpu_add_op_writes_vpm(inst->alu.add.op))
return true;
if (inst->alu.add.magic_write &&
@@ -590,6 +613,12 @@ v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst)
return false;
}
bool
v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst)
{
return v3d_qpu_reads_vpm(inst) || v3d_qpu_writes_vpm(inst);
}
bool
v3d_qpu_writes_r3(const struct v3d_device_info *devinfo,
const struct v3d_qpu_instr *inst)

4
src/broadcom/qpu/qpu_instr.h
View File

@@ -445,7 +445,9 @@ bool v3d_qpu_writes_r4(const struct v3d_device_info *devinfo,
bool v3d_qpu_writes_r5(const struct v3d_device_info *devinfo,
const struct v3d_qpu_instr *instr) ATTRIBUTE_CONST;
bool v3d_qpu_uses_mux(const struct v3d_qpu_instr *inst, enum v3d_qpu_mux mux);
bool v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst);
bool v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst) ATTRIBUTE_CONST;
bool v3d_qpu_reads_vpm(const struct v3d_qpu_instr *inst) ATTRIBUTE_CONST;
bool v3d_qpu_writes_vpm(const struct v3d_qpu_instr *inst) ATTRIBUTE_CONST;
bool v3d_qpu_sig_writes_address(const struct v3d_device_info *devinfo,
const struct v3d_qpu_sig *sig) ATTRIBUTE_CONST;