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intel/eu: Start validating LSC message descriptors

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This is certainly not a full validation but it at least gets the
framework in place and validates one hard-to-find restriction.

Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11657>
This commit is contained in:
Jason Ekstrand
2021-06-30 10:27:27 -05:00
committed by Marge Bot
parent 89b7a40212
commit a62973580b
1 changed files with 39 additions and 0 deletions
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39
src/intel/compiler/brw_eu_validate.c
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@@ -2028,6 +2028,44 @@ instruction_restrictions(const struct intel_device_info *devinfo,
return error_msg;
}
static struct string
send_descriptor_restrictions(const struct intel_device_info *devinfo,
const brw_inst *inst)
{
struct string error_msg = { .str = NULL, .len = 0 };
if (inst_is_split_send(devinfo, inst)) {
/* We can only validate immediate descriptors */
if (brw_inst_send_sel_reg32_desc(devinfo, inst))
return error_msg;
} else if (inst_is_send(devinfo, inst)) {
/* We can only validate immediate descriptors */
if (brw_inst_src1_reg_file(devinfo, inst) != BRW_IMMEDIATE_VALUE)
return error_msg;
} else {
return error_msg;
}
const uint32_t desc = brw_inst_send_desc(devinfo, inst);
switch (brw_inst_sfid(devinfo, inst)) {
case GFX12_SFID_TGM:
case GFX12_SFID_SLM:
case GFX12_SFID_UGM:
ERROR_IF(!devinfo->has_lsc, "Platform does not support LSC");
ERROR_IF(lsc_msg_desc_transpose(devinfo, desc) &&
brw_inst_exec_size(devinfo, inst) != BRW_EXECUTE_1,
"Transposed vectors are restricted to Exec_Mask = 1.");
break;
default:
break;
}
return error_msg;
}
bool
brw_validate_instruction(const struct intel_device_info *devinfo,
const brw_inst *inst, int offset,
@@ -2051,6 +2089,7 @@ brw_validate_instruction(const struct intel_device_info *devinfo,
CHECK(vector_immediate_restrictions);
CHECK(special_requirements_for_handling_double_precision_data_types);
CHECK(instruction_restrictions);
CHECK(send_descriptor_restrictions);
}
}