diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2014-04-17 19:22:33 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2014-05-01 00:24:10 -0700 |
| commit | 45367d2d092266e60d6f4a5b8f17d5a410cdfee9 (patch) | |
| tree | 5c77013b4ba06ed2b1f3d0b09189a2a489a6d9c5 /src | |
| parent | e9e89d5756a1bf886eb8a9330902de4bf1b8f710 (diff) | |
i965/vec4: Port untyped surface reads support to Broadwell.
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.h | 3 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen8_vec4_generator.cpp | 26 |
2 files changed, 28 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h index 9919a8915ca..3bfe8e4d834 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.h +++ b/src/mesa/drivers/dri/i965/brw_vec4.h @@ -783,6 +783,9 @@ private: struct brw_reg dst, struct brw_reg index, struct brw_reg offset); + void generate_untyped_surface_read(vec4_instruction *ir, + struct brw_reg dst, + struct brw_reg surf_index); struct brw_vec4_prog_data *prog_data; diff --git a/src/mesa/drivers/dri/i965/gen8_vec4_generator.cpp b/src/mesa/drivers/dri/i965/gen8_vec4_generator.cpp index dd3035c7221..1c4823d9254 100644 --- a/src/mesa/drivers/dri/i965/gen8_vec4_generator.cpp +++ b/src/mesa/drivers/dri/i965/gen8_vec4_generator.cpp @@ -456,6 +456,30 @@ gen8_vec4_generator::generate_pull_constant_load(vec4_instruction *inst, } void +gen8_vec4_generator::generate_untyped_surface_read(vec4_instruction *ir, + struct brw_reg dst, + struct brw_reg surf_index) +{ + assert(surf_index.file == BRW_IMMEDIATE_VALUE && + surf_index.type == BRW_REGISTER_TYPE_UD); + + 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_SURFACE_READ, + 0xe, /* enable only the R channel */ + ir->mlen, + 1, + ir->header_present, + false); + + brw_mark_surface_used(&prog_data->base, surf_index.dw1.ud); +} + + +void gen8_vec4_generator::generate_vec4_instruction(vec4_instruction *instruction, struct brw_reg dst, struct brw_reg *src) @@ -765,7 +789,7 @@ gen8_vec4_generator::generate_vec4_instruction(vec4_instruction *instruction, break; case SHADER_OPCODE_UNTYPED_SURFACE_READ: - assert(!"XXX: Missing Gen8 vec4 support for UNTYPED_SURFACE_READ"); + generate_untyped_surface_read(ir, dst, src[0]); break; case VS_OPCODE_UNPACK_FLAGS_SIMD4X2: |