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radeonsi: add scratch buffer support for tessellation shaders

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Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2015-05-18 14:41:35 +02:00
parent 12df9a7876
commit a193c4978b
1 changed files with 27 additions and 7 deletions
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34
src/gallium/drivers/radeonsi/si_state_shaders.c
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@ -122,7 +122,8 @@ static void si_shader_ls(struct si_shader *shader)
shader->ls_rsrc1 = S_00B528_VGPRS((shader->num_vgprs - 1) / 4) |
S_00B528_SGPRS((num_sgprs - 1) / 8) |
S_00B528_VGPR_COMP_CNT(vgpr_comp_cnt);
shader->ls_rsrc2 = S_00B52C_USER_SGPR(num_user_sgprs);
shader->ls_rsrc2 = S_00B52C_USER_SGPR(num_user_sgprs) |
S_00B52C_SCRATCH_EN(shader->scratch_bytes_per_wave > 0);
}
static void si_shader_hs(struct si_shader *shader)
@ -154,7 +155,8 @@ static void si_shader_hs(struct si_shader *shader)
S_00B428_VGPRS((shader->num_vgprs - 1) / 4) |
S_00B428_SGPRS((num_sgprs - 1) / 8));
si_pm4_set_reg(pm4, R_00B42C_SPI_SHADER_PGM_RSRC2_HS,
S_00B42C_USER_SGPR(num_user_sgprs));
S_00B42C_USER_SGPR(num_user_sgprs) |
S_00B42C_SCRATCH_EN(shader->scratch_bytes_per_wave > 0));
}
static void si_shader_es(struct si_shader *shader)
@ -1066,10 +1068,14 @@ static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_context *sctx,
static unsigned si_get_max_scratch_bytes_per_wave(struct si_context *sctx)
{
unsigned bytes = 0;
return MAX3(si_get_scratch_buffer_bytes_per_wave(sctx, sctx->ps_shader),
si_get_scratch_buffer_bytes_per_wave(sctx, sctx->gs_shader),
si_get_scratch_buffer_bytes_per_wave(sctx, sctx->vs_shader));
bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx, sctx->ps_shader));
bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx, sctx->gs_shader));
bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx, sctx->vs_shader));
bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx, sctx->tcs_shader));
bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx, sctx->tes_shader));
return bytes;
}
static void si_update_spi_tmpring_size(struct si_context *sctx)
@ -1103,15 +1109,29 @@ static void si_update_spi_tmpring_size(struct si_context *sctx)
si_pm4_bind_state(sctx, ps, sctx->ps_shader->current->pm4);
if (si_update_scratch_buffer(sctx, sctx->gs_shader))
si_pm4_bind_state(sctx, gs, sctx->gs_shader->current->pm4);
if (si_update_scratch_buffer(sctx, sctx->tcs_shader))
si_pm4_bind_state(sctx, hs, sctx->tcs_shader->current->pm4);
/* VS can be bound as ES or VS. */
if (sctx->gs_shader) {
/* VS can be bound as LS, ES, or VS. */
if (sctx->tes_shader) {
if (si_update_scratch_buffer(sctx, sctx->vs_shader))
si_pm4_bind_state(sctx, ls, sctx->vs_shader->current->pm4);
} else if (sctx->gs_shader) {
if (si_update_scratch_buffer(sctx, sctx->vs_shader))
si_pm4_bind_state(sctx, es, sctx->vs_shader->current->pm4);
} else {
if (si_update_scratch_buffer(sctx, sctx->vs_shader))
si_pm4_bind_state(sctx, vs, sctx->vs_shader->current->pm4);
}
/* TES can be bound as ES or VS. */
if (sctx->gs_shader) {
if (si_update_scratch_buffer(sctx, sctx->tes_shader))
si_pm4_bind_state(sctx, es, sctx->tes_shader->current->pm4);
} else {
if (si_update_scratch_buffer(sctx, sctx->tes_shader))
si_pm4_bind_state(sctx, vs, sctx->tes_shader->current->pm4);
}
}
/* The LLVM shader backend should be reporting aligned scratch_sizes. */