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freedreno/a4xx: support for large shaders 

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2015-04-12 12:58:52 -04:00
parent 20ea698c49
commit e5e11b5baf
1 changed files with 26 additions and 3 deletions
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29
src/gallium/drivers/freedreno/a4xx/fd4_program.c
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@ -184,7 +184,24 @@ setup_stages(struct fd4_emit *emit, struct stage *s)
* space and FS taking entire remaining space. We probably don't
* need to do that the same way, but for now mimic what the blob
* does to make it easier to diff against register values from blob
*
* NOTE: if VS.instrlen + FS.instrlen > 64, then one or both shaders
* is run from external memory.
*/
if ((s[VS].instrlen + s[FS].instrlen) > 64) {
/* prioritize FS for internal memory: */
if (s[FS].instrlen < 64) {
/* if FS can fit, kick VS out to external memory: */
s[VS].instrlen = 0;
} else if (s[VS].instrlen < 64) {
/* otherwise if VS can fit, kick out FS: */
s[FS].instrlen = 0;
} else {
/* neither can fit, run both from external memory: */
s[VS].instrlen = 0;
s[FS].instrlen = 0;
}
}
s[VS].constlen = 66;
s[FS].constlen = 128 - s[VS].constlen;
s[VS].instroff = 0;
@ -279,7 +296,11 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
COND(emit->key.binning_pass, A4XX_SP_SP_CTRL_REG_BINNING_PASS));
OUT_PKT0(ring, REG_A4XX_SP_INSTR_CACHE_CTRL, 1);
OUT_RING(ring, 0x1c3); /* XXX SP_INSTR_CACHE_CTRL */
OUT_RING(ring, 0x7f | /* XXX */
COND(s[VS].instrlen, A4XX_SP_INSTR_CACHE_CTRL_VS_BUFFER) |
COND(s[FS].instrlen, A4XX_SP_INSTR_CACHE_CTRL_FS_BUFFER) |
COND(s[VS].instrlen && s[FS].instrlen,
A4XX_SP_INSTR_CACHE_CTRL_INSTR_BUFFER));
OUT_PKT0(ring, REG_A4XX_SP_VS_LENGTH_REG, 1);
OUT_RING(ring, s[VS].v->instrlen); /* SP_VS_LENGTH_REG */
@ -486,10 +507,12 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit)
OUT_RING(ring, s[FS].v->shader->vpsrepl[i]); /* VPC_VARYING_PS_REPL[i] */
}
emit_shader(ring, s[VS].v);
if (s[VS].instrlen)
emit_shader(ring, s[VS].v);
if (!emit->key.binning_pass)
emit_shader(ring, s[FS].v);
if (s[FS].instrlen)
emit_shader(ring, s[FS].v);
}
/* hack.. until we figure out how to deal w/ vpsrepl properly.. */