diff options
author | Eric Anholt <eric@anholt.net> | 2018-03-19 11:03:47 -0700 |
---|---|---|
committer | Eric Anholt <eric@anholt.net> | 2018-03-19 16:42:59 -0700 |
commit | 09c4dd19713b3155bd744f873e91e0328be62978 (patch) | |
tree | 6b963fc9c06c4d32af0a5671526af7baa022f67c /src/broadcom | |
parent | 407f21ef1bcbd4054927aa8cc7a9f9252b389a87 (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.c | 35 | ||||
-rw-r--r-- | src/broadcom/qpu/qpu_instr.h | 4 |
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; |