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i965: Add support for gen6 FB writes to the new FS. 

This uses message headers for now, since we'll need it for MRT.  We
can cut out the header later.
This commit is contained in:
Eric Anholt 2010-10-04 15:07:17 -07:00
parent 739aec39bd
commit ea909be58d
2 changed files with 22 additions and 3 deletions
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11
src/mesa/drivers/dri/i965/brw_eu_emit.c
View File

@ -448,6 +448,7 @@ static void brw_set_dp_write_message( struct brw_context *brw,
GLuint msg_control,
GLuint msg_type,
GLuint msg_length,
GLboolean header_present,
GLuint pixel_scoreboard_clear,
GLuint response_length,
GLuint end_of_thread,
@ -462,7 +463,7 @@ static void brw_set_dp_write_message( struct brw_context *brw,
insn->bits3.dp_render_cache.pixel_scoreboard_clear = pixel_scoreboard_clear;
insn->bits3.dp_render_cache.msg_type = msg_type;
insn->bits3.dp_render_cache.send_commit_msg = send_commit_msg;
insn->bits3.dp_render_cache.header_present = 0; /* XXX */
insn->bits3.dp_render_cache.header_present = header_present;
insn->bits3.dp_render_cache.response_length = response_length;
insn->bits3.dp_render_cache.msg_length = msg_length;
insn->bits3.dp_render_cache.end_of_thread = end_of_thread;
@ -476,7 +477,7 @@ static void brw_set_dp_write_message( struct brw_context *brw,
insn->bits3.dp_write_gen5.pixel_scoreboard_clear = pixel_scoreboard_clear;
insn->bits3.dp_write_gen5.msg_type = msg_type;
insn->bits3.dp_write_gen5.send_commit_msg = send_commit_msg;
insn->bits3.dp_write_gen5.header_present = 1;
insn->bits3.dp_write_gen5.header_present = header_present;
insn->bits3.dp_write_gen5.response_length = response_length;
insn->bits3.dp_write_gen5.msg_length = msg_length;
insn->bits3.dp_write_gen5.end_of_thread = end_of_thread;
@ -1293,6 +1294,7 @@ void brw_dp_WRITE_16( struct brw_compile *p,
BRW_DATAPORT_OWORD_BLOCK_4_OWORDS, /* msg_control */
BRW_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE, /* msg_type */
msg_length,
GL_TRUE, /* header_present */
0, /* pixel scoreboard */
send_commit_msg, /* response_length */
0, /* eot */
@ -1530,12 +1532,16 @@ void brw_fb_WRITE(struct brw_compile *p,
struct intel_context *intel = &p->brw->intel;
struct brw_instruction *insn;
GLuint msg_control, msg_type;
GLboolean header_present = GL_TRUE;
insn = next_insn(p, BRW_OPCODE_SEND);
insn->header.predicate_control = 0; /* XXX */
insn->header.compression_control = BRW_COMPRESSION_NONE;
if (intel->gen >= 6) {
if (msg_length == 4)
header_present = GL_FALSE;
/* headerless version, just submit color payload */
src0 = brw_message_reg(msg_reg_nr);
@ -1559,6 +1565,7 @@ void brw_fb_WRITE(struct brw_compile *p,
msg_control,
msg_type,
msg_length,
header_present,
1, /* pixel scoreboard */
response_length,
eot,

14
src/mesa/drivers/dri/i965/brw_fs.cpp
View File

@ -1920,6 +1920,7 @@ void
fs_visitor::generate_fb_write(fs_inst *inst)
{
GLboolean eot = inst->eot;
struct brw_reg implied_header;
/* Header is 2 regs, g0 and g1 are the contents. g0 will be implied
* move, here's g1.
@ -1927,16 +1928,27 @@ fs_visitor::generate_fb_write(fs_inst *inst)
brw_push_insn_state(p);
brw_set_mask_control(p, BRW_MASK_DISABLE);
brw_set_compression_control(p, BRW_COMPRESSION_NONE);
if (intel->gen >= 6) {
brw_MOV(p,
brw_message_reg(0),
brw_vec8_grf(0, 0));
implied_header = brw_null_reg();
} else {
implied_header = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW);
}
brw_MOV(p,
brw_message_reg(1),
brw_vec8_grf(1, 0));
brw_pop_insn_state(p);
brw_fb_WRITE(p,
8, /* dispatch_width */
retype(vec8(brw_null_reg()), BRW_REGISTER_TYPE_UW),
0, /* base MRF */
retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UW),
implied_header,
inst->target,
inst->mlen,
0,