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pan/bi: Add support for load_sample_id 

Sample ID is preloaded in r61.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7206>
This commit is contained in:
Boris Brezillon 2020-10-17 11:24:17 +02:00 committed by Marge Bot
parent e2d6156742
commit 4aff27a68a
1 changed files with 32 additions and 0 deletions
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32
src/panfrost/bifrost/bifrost_compile.c
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@ -534,6 +534,34 @@ bi_emit_blend_const(bi_context *ctx, nir_intrinsic_instr *instr)
bi_emit(ctx, move);
}
static void
bi_emit_sample_id(bi_context *ctx, nir_intrinsic_instr *instr)
{
bi_instruction ins = {
.type = BI_BITWISE,
.op.bitwise = BI_BITWISE_AND,
.bitwise.rshift = true,
.dest = pan_dest_index(&instr->dest),
.dest_type = nir_type_uint32,
.src = {
/* r61[16:23] contains the sampleID */
BIR_INDEX_REGISTER | 61,
/* mask */
BIR_INDEX_CONSTANT | 0,
/* shift */
BIR_INDEX_CONSTANT | 32,
},
.src_types = {
nir_type_uint32,
nir_type_uint32,
nir_type_uint8,
},
.constant.u64 = 0xffull | (0x10ull << 32ull)
};
bi_emit(ctx, ins);
}
static void
emit_intrinsic(bi_context *ctx, nir_intrinsic_instr *instr)
{
@ -606,6 +634,10 @@ emit_intrinsic(bi_context *ctx, nir_intrinsic_instr *instr)
bi_emit_blend_const(ctx, instr);
break;
case nir_intrinsic_load_sample_id:
bi_emit_sample_id(ctx, instr);
break;
default:
unreachable("Unknown intrinsic");
break;