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intel/compiler: Prepare ld2dms_w for 4 mcs components

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Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11766>
This commit is contained in:
Topi Pohjolainen 2020-07-07 23:18:53 -07:00 • committed by Sagar Ghuge
parent dfe0ba9080
commit 24831bbd40
1 changed files with 14 additions and 11 deletions
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25
src/intel/compiler/brw_fs.cpp
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@ -5424,20 +5424,23 @@ lower_sampler_logical_send_gfx7(const fs_builder &bld, fs_inst *inst, opcode op,
bld.MOV(retype(sources[length++], payload_unsigned_type), sample_index);
}
/* Data from the multisample control surface. */
if (op == SHADER_OPCODE_TXF_CMS || op == SHADER_OPCODE_TXF_CMS_W) {
/* Data from the multisample control surface. */
bld.MOV(retype(sources[length], payload_unsigned_type), mcs);
length++;
unsigned num_mcs_components = 1;
/* On Gfx9+ we'll use ld2dms_w instead which has two registers for
* the MCS data.
/* From the Gfx12HP BSpec: Render Engine - 3D and GPGPU Programs -
* Shared Functions - 3D Sampler - Messages - Message Format:
*
* ld2dms_w si mcs0 mcs1 mcs2 mcs3 u v r
*/
if (op == SHADER_OPCODE_TXF_CMS_W) {
bld.MOV(retype(sources[length], payload_unsigned_type),
mcs.file == IMM ?
mcs :
offset(mcs, bld, 1));
length++;
if (devinfo->verx10 >= 125 && op == SHADER_OPCODE_TXF_CMS_W)
num_mcs_components = 4;
else if (op == SHADER_OPCODE_TXF_CMS_W)
num_mcs_components = 2;
for (unsigned i = 0; i < num_mcs_components; ++i) {
bld.MOV(retype(sources[length++], payload_unsigned_type),
mcs.file == IMM ? mcs : offset(mcs, bld, i));
}
}