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authorEric Anholt <eric@anholt.net>2018-03-19 11:03:47 -0700
committerEric Anholt <eric@anholt.net>2018-03-19 16:42:59 -0700
commit09c4dd19713b3155bd744f873e91e0328be62978 (patch)
tree6b963fc9c06c4d32af0a5671526af7baa022f67c /src/broadcom
parent407f21ef1bcbd4054927aa8cc7a9f9252b389a87 (diff)
broadcom/vc5: Introduce v3d_qpu_reads_vpm()/v3d_qpu_writes_vpm().
These helpers will be used in register spilling to determine where to add a last thrsw if needed, and might help refactor QPU scheduling.
Diffstat (limited to 'src/broadcom')
-rw-r--r--src/broadcom/qpu/qpu_instr.c35
-rw-r--r--src/broadcom/qpu/qpu_instr.h4
2 files changed, 35 insertions, 4 deletions
diff --git a/src/broadcom/qpu/qpu_instr.c b/src/broadcom/qpu/qpu_instr.c
index 506cf06d550..978d470cc64 100644
--- a/src/broadcom/qpu/qpu_instr.c
+++ b/src/broadcom/qpu/qpu_instr.c
@@ -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 &&
@@ -591,6 +614,12 @@ v3d_qpu_uses_vpm(const struct v3d_qpu_instr *inst)
}
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)
{
diff --git a/src/broadcom/qpu/qpu_instr.h b/src/broadcom/qpu/qpu_instr.h
index 39232b0e61d..9568857f110 100644
--- a/src/broadcom/qpu/qpu_instr.h
+++ b/src/broadcom/qpu/qpu_instr.h
@@ -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;