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i965/fs: Port untyped atomic message support to Broadwell.

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v2: Fix SIMD mode comment (caught by Eric Anholt).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77221
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Kenneth Graunke
2014-04-17 18:47:38 -07:00
parent 54a48984b3
commit e9e89d5756
2 changed files with 38 additions and 1 deletions
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src/mesa/drivers/dri/i965/brw_fs.h
+5
View File
@@ -750,6 +750,11 @@ private:
void generate_unpack_half_2x16_split(fs_inst *inst,
struct brw_reg dst,
struct brw_reg src);
void generate_untyped_atomic(fs_inst *inst,
struct brw_reg dst,
struct brw_reg atomic_op,
struct brw_reg surf_index);
void generate_untyped_surface_read(fs_inst *inst,
struct brw_reg dst,
struct brw_reg surf_index);
src/mesa/drivers/dri/i965/gen8_fs_generator.cpp
+33 -1
View File
@@ -820,6 +820,38 @@ gen8_fs_generator::generate_unpack_half_2x16_split(fs_inst *inst,
MOV(dst, src_hf);
}
void
gen8_fs_generator::generate_untyped_atomic(fs_inst *ir,
struct brw_reg dst,
struct brw_reg atomic_op,
struct brw_reg surf_index)
{
assert(atomic_op.file == BRW_IMMEDIATE_VALUE &&
atomic_op.type == BRW_REGISTER_TYPE_UD &&
surf_index.file == BRW_IMMEDIATE_VALUE &&
surf_index.type == BRW_REGISTER_TYPE_UD);
assert((atomic_op.dw1.ud & ~0xf) == 0);
unsigned msg_control =
atomic_op.dw1.ud | /* Atomic Operation Type: BRW_AOP_* */
((dispatch_width == 16 ? 0 : 1) << 4) | /* SIMD Mode */
(1 << 5); /* Return data expected */
gen8_instruction *inst = next_inst(BRW_OPCODE_SEND);
gen8_set_dst(brw, inst, retype(dst, BRW_REGISTER_TYPE_UD));
gen8_set_src0(brw, inst, brw_message_reg(ir->base_mrf));
gen8_set_dp_message(brw, inst, HSW_SFID_DATAPORT_DATA_CACHE_1,
surf_index.dw1.ud,
HSW_DATAPORT_DC_PORT1_UNTYPED_ATOMIC_OP,
msg_control,
ir->mlen,
dispatch_width / 8,
ir->header_present,
false);
brw_mark_surface_used(&c->prog_data.base, surf_index.dw1.ud);
}
void
gen8_fs_generator::generate_untyped_surface_read(fs_inst *ir,
struct brw_reg dst,
@@ -1215,7 +1247,7 @@ gen8_fs_generator::generate_code(exec_list *instructions)
break;
case SHADER_OPCODE_UNTYPED_ATOMIC:
assert(!"XXX: Missing Gen8 scalar support for untyped atomics");
generate_untyped_atomic(ir, dst, src[0], src[1]);
break;
case SHADER_OPCODE_UNTYPED_SURFACE_READ: