From a193c4978b0b536266afc7887457ab11473671d7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Mon, 18 May 2015 14:41:35 +0200 Subject: [PATCH] radeonsi: add scratch buffer support for tessellation shaders MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Reviewed-by: Michel Dänzer --- .../drivers/radeonsi/si_state_shaders.c | 36 ++++++++++++++----- 1 file changed, 28 insertions(+), 8 deletions(-) diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c index 074e44a60e0..24afed06fce 100644 --- a/src/gallium/drivers/radeonsi/si_state_shaders.c +++ b/src/gallium/drivers/radeonsi/si_state_shaders.c @@ -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) { - - 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)); + unsigned bytes = 0; + + 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. */ -- 2.30.2