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pan/bi: Lower atomic pseudo-instructions

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Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Tested-by: Icecream95 <ixn@disroot.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9105>
This commit is contained in:
Alyssa Rosenzweig 2021-02-16 11:01:57 -05:00 • committed by Marge Bot
parent c51c3a8fe3
commit f1adbd5d33
1 changed files with 68 additions and 0 deletions
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68
src/panfrost/bifrost/bi_schedule.c
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@ -136,6 +136,68 @@ bi_lower_cubeface(bi_context *ctx,
return cubeface1;
}
/* Psuedo arguments are (rbase, address lo, address hi). We need *ATOM_C.i32 to
* have the arguments (address lo, address hi, rbase), and +ATOM_CX to have the
* arguments (rbase, address lo, address hi, rbase) */
static bi_instr *
bi_lower_atom_c(bi_context *ctx, struct bi_clause_state *clause, struct
bi_tuple_state *tuple)
{
bi_instr *pinstr = tuple->add;
bi_builder b = bi_init_builder(ctx, bi_before_instr(pinstr));
bi_instr *atom_c = bi_atom_c_return_i32_to(&b, bi_null(),
pinstr->src[1], pinstr->src[2], pinstr->src[0],
pinstr->atom_opc);
if (bi_is_null(pinstr->dest[0]))
atom_c->op = BI_OPCODE_ATOM_C_I32;
pinstr->op = BI_OPCODE_ATOM_CX;
pinstr->src[3] = atom_c->src[2];
return atom_c;
}
static bi_instr *
bi_lower_atom_c1(bi_context *ctx, struct bi_clause_state *clause, struct
bi_tuple_state *tuple)
{
bi_instr *pinstr = tuple->add;
bi_builder b = bi_init_builder(ctx, bi_before_instr(pinstr));
bi_instr *atom_c = bi_atom_c1_return_i32_to(&b, bi_null(),
pinstr->src[0], pinstr->src[1], pinstr->atom_opc);
if (bi_is_null(pinstr->dest[0]))
atom_c->op = BI_OPCODE_ATOM_C1_I32;
pinstr->op = BI_OPCODE_ATOM_CX;
pinstr->src[2] = pinstr->src[1];
pinstr->src[1] = pinstr->src[0];
pinstr->src[3] = bi_dontcare();
pinstr->src[0] = pinstr->dest[0];
return atom_c;
}
static bi_instr *
bi_lower_seg_add(bi_context *ctx,
struct bi_clause_state *clause, struct bi_tuple_state *tuple)
{
bi_instr *pinstr = tuple->add;
bi_builder b = bi_init_builder(ctx, bi_before_instr(pinstr));
bi_instr *fma = bi_seg_add_to(&b, bi_word(pinstr->dest[0], 0),
pinstr->src[0], pinstr->preserve_null, pinstr->seg);
pinstr->op = BI_OPCODE_SEG_ADD;
pinstr->dest[0] = bi_word(pinstr->dest[0], 1);
pinstr->src[0] = pinstr->src[1];
pinstr->src[1] = bi_null();
return fma;
}
/* Flatten linked list to array for O(1) indexing */
static bi_instr **
@ -789,6 +851,12 @@ bi_take_instr(bi_context *ctx, struct bi_worklist st,
if (tuple->add && tuple->add->op == BI_OPCODE_CUBEFACE)
return bi_lower_cubeface(ctx, clause, tuple);
else if (tuple->add && tuple->add->op == BI_OPCODE_PATOM_C_I32)
return bi_lower_atom_c(ctx, clause, tuple);
else if (tuple->add && tuple->add->op == BI_OPCODE_PATOM_C1_I32)
return bi_lower_atom_c1(ctx, clause, tuple);
else if (tuple->add && tuple->add->op == BI_OPCODE_SEG_ADD_I64)
return bi_lower_seg_add(ctx, clause, tuple);
unsigned idx = bi_choose_index(st, clause, tuple, fma);