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i965: Don't use message headers for untyped reads 

We always set the mask to 0xffff, which is what it defaults to when no
header is present. Let's drop the header instead.

v2: Only remove header for untyped reads. Typed reads always need the
    header.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Kristian Høgsberg Kristensen <krh@bitplanet.net>
This commit is contained in:
Kristian Høgsberg Kristensen 2015-10-16 21:38:05 -07:00
parent 2f1bc1da86
commit de5a450bd3
2 changed files with 2 additions and 3 deletions
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3
src/mesa/drivers/dri/i965/brw_eu_emit.c
View File

@ -2906,11 +2906,10 @@ brw_untyped_surface_read(struct brw_codegen *p,
const unsigned sfid = (devinfo->gen >= 8 || devinfo->is_haswell ?
HSW_SFID_DATAPORT_DATA_CACHE_1 :
GEN7_SFID_DATAPORT_DATA_CACHE);
const bool align1 = (brw_inst_access_mode(devinfo, p->current) == BRW_ALIGN_1);
struct brw_inst *insn = brw_send_indirect_surface_message(
p, sfid, dst, payload, surface, msg_length,
brw_surface_payload_size(p, num_channels, true, true),
align1);
false);
brw_set_dp_untyped_surface_read_message(
p, insn, num_channels);

2
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -4070,7 +4070,7 @@ fs_visitor::lower_logical_sends()
case SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL:
lower_surface_logical_send(ibld, inst,
SHADER_OPCODE_UNTYPED_SURFACE_READ,
fs_reg(0xffff));
fs_reg());
break;
case SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL: