diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c')
-rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c new file mode 100644 index 0000000000..af6777a7bd --- /dev/null +++ b/src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c @@ -0,0 +1,106 @@ +/* + * Copyright (C) 2009 Nicolai Haehnle. + * + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "radeon_dataflow.h" + +#include "radeon_compiler.h" + + +static void add_ref_to_vector(struct rc_dataflow_ref * ref, struct rc_dataflow_vector * vector) +{ + ref->Vector = vector; + ref->Prev = &vector->Refs; + ref->Next = vector->Refs.Next; + ref->Prev->Next = ref; + ref->Next->Prev = ref; +} + +struct rc_dataflow_ref * rc_dataflow_create_ref(struct radeon_compiler * c, + struct rc_dataflow_vector * vector, struct rc_instruction * inst) +{ + struct rc_dataflow_ref * ref = memory_pool_malloc(&c->Pool, sizeof(struct rc_dataflow_ref)); + ref->ReadInstruction = inst; + ref->UseMask = 0; + + add_ref_to_vector(ref, vector); + + return ref; +} + +struct rc_dataflow_vector * rc_dataflow_create_vector(struct radeon_compiler * c, + rc_register_file file, unsigned int index, struct rc_instruction * inst) +{ + struct rc_dataflow_vector * vec = memory_pool_malloc(&c->Pool, sizeof(struct rc_dataflow_vector)); + + memset(vec, 0, sizeof(struct rc_dataflow_vector)); + vec->File = file; + vec->Index = index; + vec->WriteInstruction = inst; + + vec->Refs.Next = vec->Refs.Prev = &vec->Refs; + + return vec; +} + +void rc_dataflow_remove_ref(struct rc_dataflow_ref * ref) +{ + ref->Prev->Next = ref->Next; + ref->Next->Prev = ref->Prev; +} + +void rc_dataflow_remove_instruction(struct rc_instruction * inst) +{ + for(unsigned int i = 0; i < 3; ++i) { + if (inst->Dataflow.SrcReg[i]) { + rc_dataflow_remove_ref(inst->Dataflow.SrcReg[i]); + inst->Dataflow.SrcReg[i] = 0; + } + if (inst->Dataflow.SrcRegAddress[i]) { + rc_dataflow_remove_ref(inst->Dataflow.SrcRegAddress[i]); + inst->Dataflow.SrcRegAddress[i] = 0; + } + } + + if (inst->Dataflow.DstReg) { + while(inst->Dataflow.DstReg->Refs.Next != &inst->Dataflow.DstReg->Refs) { + struct rc_dataflow_ref * ref = inst->Dataflow.DstReg->Refs.Next; + rc_dataflow_remove_ref(ref); + if (inst->Dataflow.DstRegPrev) + add_ref_to_vector(ref, inst->Dataflow.DstRegPrev->Vector); + } + + inst->Dataflow.DstReg->WriteInstruction = 0; + inst->Dataflow.DstReg = 0; + } + + if (inst->Dataflow.DstRegPrev) { + rc_dataflow_remove_ref(inst->Dataflow.DstRegPrev); + inst->Dataflow.DstRegPrev = 0; + } + + inst->Dataflow.DstRegAliased = 0; +} |