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Fix up sampler send message translation and give it a near-usable syntax.

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Eric Anholt 2006-08-24 14:35:10 -07:00 committed by Damien Lespiau
parent e609d6ba93
commit 56c4ccfc19
2 changed files with 89 additions and 19 deletions
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104
assembler/gram.y
View File

@ -58,8 +58,8 @@
%token DOT
%token MINUS ABS
%token TYPE_UD, TYPE_D, TYPE_UW, TYPE_W, TYPE_UB, TYPE_B,
%token TYPE_VF, TYPE_HF, TYPE_V, TYPE_F
%token <integer> TYPE_UD, TYPE_D, TYPE_UW, TYPE_W, TYPE_UB, TYPE_B,
%token <integer> TYPE_VF, TYPE_HF, TYPE_V, TYPE_F
%token <integer> ALIGN1 ALIGN16 MASK_DISABLE EOT
@ -82,14 +82,14 @@
%type <instruction> specialinstruction
%type <instruction> dst dstoperand dstoperandex dstreg
%type <instruction> directsrcaccoperand src directsrcoperand srcimm imm32reg
%type <instruction> srcacc srcaccimm
%type <instruction> srcacc srcaccimm payload post_dst msgtarget
%type <instruction> instoptions instoption_list
%type <program> instrseq
%type <integer> instoption
%type <integer> unaryop binaryop binaryaccop
%type <integer> conditionalmodifier saturate negate abs
%type <integer> regtype srcimmtype execsize dstregion
%type <integer> subregnum msgtarget
%type <integer> subregnum sampler_datatype
%type <region> region
%type <direct_gen_reg> directgenreg directmsgreg addrreg accreg flagreg maskreg
%type <direct_gen_reg> nullreg
@ -196,14 +196,31 @@ binaryaccop: ADD { $$ = BRW_OPCODE_ADD; }
triinstruction: sendinstruction
/* XXX formatting of this instruction */
sendinstruction: predicate SEND INTEGER execsize dst payload msgtarget
sendinstruction: predicate SEND execsize INTEGER post_dst payload msgtarget
MSGLEN INTEGER RETURNLEN INTEGER instoptions
{
/* Send instructions are messy. The first argument is the
* post destination -- the grf register that the response
* starts from. The second argument is the current
* destination, which is the start of the message arguments
* to the shared function, and where src0 payload is loaded
* to if not null. The payload is typically based on the
* grf 0 thread payload of your current thread, and is
* implicitly loaded if non-null.
*/
bzero(&$$, sizeof($$));
$$.header.opcode = BRW_OPCODE_SEND;
$$.header.execution_size = $4;
$$.header.destreg__conditionalmod = $3;
$$.header.execution_size = $3;
$$.header.destreg__conditionalmod = $4; /* msg reg index */
set_instruction_dest(&$$, &$5);
set_instruction_src0(&$$, &$6);
$$.bits1.da1.src1_reg_file = BRW_IMMEDIATE_VALUE;
$$.bits1.da1.src1_reg_type = BRW_REGISTER_TYPE_D;
$$.bits3.generic = $7.bits3.generic;
$$.bits3.generic.msg_length = $9;
$$.bits3.generic.response_length = $11;
$$.bits3.generic.end_of_thread =
$12.bits3.generic.msg_target;
}
specialinstruction: NOP
@ -216,16 +233,68 @@ specialinstruction: NOP
payload: directsrcoperand
;
msgtarget: NULL_TOKEN { $$ = BRW_MESSAGE_TARGET_NULL; }
| SAMPLER { $$ = BRW_MESSAGE_TARGET_SAMPLER; }
| MATH { $$ = BRW_MESSAGE_TARGET_MATH; }
| GATEWAY { $$ = BRW_MESSAGE_TARGET_GATEWAY; }
| READ { $$ = BRW_MESSAGE_TARGET_DATAPORT_READ; }
| WRITE { $$ = BRW_MESSAGE_TARGET_DATAPORT_WRITE; }
| URB { $$ = BRW_MESSAGE_TARGET_URB; }
| THREAD_SPAWNER { $$ = BRW_MESSAGE_TARGET_THREAD_SPAWNER; }
post_dst: dst
;
msgtarget: NULL_TOKEN
{
$$.bits3.generic.msg_target = BRW_MESSAGE_TARGET_NULL;
}
| SAMPLER LPAREN INTEGER COMMA INTEGER COMMA
sampler_datatype RPAREN
{
$$.bits3.generic.msg_target = BRW_MESSAGE_TARGET_SAMPLER;
$$.bits3.sampler.binding_table_index = $3;
$$.bits3.sampler.sampler = $5;
switch ($7) {
case TYPE_F:
$$.bits3.sampler.return_format =
BRW_SAMPLER_RETURN_FORMAT_FLOAT32;
break;
case TYPE_UD:
$$.bits3.sampler.return_format =
BRW_SAMPLER_RETURN_FORMAT_UINT32;
break;
case TYPE_D:
$$.bits3.sampler.return_format =
BRW_SAMPLER_RETURN_FORMAT_SINT32;
break;
}
}
| MATH
{
$$.bits3.generic.msg_target = BRW_MESSAGE_TARGET_MATH;
}
| GATEWAY
{
$$.bits3.generic.msg_target = BRW_MESSAGE_TARGET_GATEWAY;
}
| READ
{
$$.bits3.generic.msg_target =
BRW_MESSAGE_TARGET_DATAPORT_READ;
}
| WRITE
{
$$.bits3.generic.msg_target =
BRW_MESSAGE_TARGET_DATAPORT_WRITE;
}
| URB
{
$$.bits3.generic.msg_target = BRW_MESSAGE_TARGET_URB;
}
| THREAD_SPAWNER
{
$$.bits3.generic.msg_target =
BRW_MESSAGE_TARGET_THREAD_SPAWNER;
}
;
sampler_datatype:
TYPE_F
| TYPE_UD
| TYPE_D
/* 1.4.2: Destination register */
dst: dstoperand | dstoperandex
@ -511,7 +580,8 @@ instoption_list: instoption instoption_list
$$.header.mask_control = BRW_MASK_DISABLE;
break;
case EOT:
/* XXX: EOT shouldn't be here */
/* XXX: EOT shouldn't be an instoption, I don't think */
$$.bits3.generic.end_of_thread = 1;
break;
}
}

4
assembler/packed_yuv_wm.g4a
View File

@ -89,7 +89,7 @@ mov (8) m4<1>F g7<8,8,1>F { align1 };
* g0 holds the PS thread payload, which (oddly) contains
* precisely what the sampler wants to see in m0
*/
send 0 (16) g12<1>UW g0<8,8,1>UW sampler mlen 5 rlen 8 { align1 };
send (16) 0 g12<1>UW g0<8,8,1>UW sampler (1,0,F) mlen 5 rlen 8 { align1 };
mov (8) g19<1>UW g19<8,8,1>UW { align1 };
/* color space conversion function:
@ -144,7 +144,7 @@ mac.sat (8) m8<1>F g15<8,8,1>F 1F { align1 };
*/
mov (8) m1<1>UD g1<8,8,1>UD { align1 mask_disable };
/* Send framebuffer write message: XXX: acc0? */
send 0 (16) null g0<8,8,1>UW write mlen 10 rlen 0 { align1 EOT };
send (16) 0 null g0<8,8,1>UW write mlen 10 rlen 0 { align1 EOT };
/* padding */
nop;
nop;