[Mesa-dev] [PATCH 02/14] radeonsi: Add offchip tessellation parameters.
Bas Nieuwenhuizen
bas at basnieuwenhuizen.nl
Tue May 10 10:52:53 UTC 2016
Signed-off-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
---
src/gallium/drivers/radeonsi/si_shader.c | 28 ++++++++++++++++++++-----
src/gallium/drivers/radeonsi/si_shader.h | 3 ++-
src/gallium/drivers/radeonsi/si_state_shaders.c | 9 ++++++++
3 files changed, 34 insertions(+), 6 deletions(-)
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 448c145..29ff68f 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -91,6 +91,12 @@ struct si_shader_context
int param_tes_rel_patch_id;
int param_tes_patch_id;
int param_es2gs_offset;
+ int param_oc_lds;
+
+ /* Sets a bit if the dynamic HS control word was 0x80000000. The bit is
+ * 0x800000 for VS, 0x1 for ES.
+ */
+ int param_tess_offchip;
LLVMTargetMachineRef tm;
@@ -2319,14 +2325,14 @@ static void si_llvm_emit_tcs_epilogue(struct lp_build_tgsi_context *bld_base)
tf_soffset = LLVMGetParam(ctx->radeon_bld.main_fn,
SI_PARAM_TESS_FACTOR_OFFSET);
ret = LLVMBuildInsertValue(builder, ret, tf_soffset,
- SI_TCS_NUM_USER_SGPR, "");
+ SI_TCS_NUM_USER_SGPR + 1, "");
/* VGPRs */
rel_patch_id = bitcast(bld_base, TGSI_TYPE_FLOAT, rel_patch_id);
invocation_id = bitcast(bld_base, TGSI_TYPE_FLOAT, invocation_id);
tf_lds_offset = bitcast(bld_base, TGSI_TYPE_FLOAT, tf_lds_offset);
- vgpr = SI_TCS_NUM_USER_SGPR + 1;
+ vgpr = SI_TCS_NUM_USER_SGPR + 2;
ret = LLVMBuildInsertValue(builder, ret, rel_patch_id, vgpr++, "");
ret = LLVMBuildInsertValue(builder, ret, invocation_id, vgpr++, "");
ret = LLVMBuildInsertValue(builder, ret, tf_lds_offset, vgpr++, "");
@@ -4908,7 +4914,11 @@ static void declare_streamout_params(struct si_shader_context *ctx,
/* Streamout SGPRs. */
if (so->num_outputs) {
- params[ctx->param_streamout_config = (*num_params)++] = i32;
+ if (ctx->type != PIPE_SHADER_TESS_EVAL)
+ params[ctx->param_streamout_config = (*num_params)++] = i32;
+ else
+ ctx->param_streamout_config = ctx->param_tess_offchip;
+
params[ctx->param_streamout_write_index = (*num_params)++] = i32;
}
/* A streamout buffer offset is loaded if the stride is non-zero. */
@@ -5028,6 +5038,7 @@ static void create_function(struct si_shader_context *ctx)
params[SI_PARAM_TCS_OUT_OFFSETS] = ctx->i32;
params[SI_PARAM_TCS_OUT_LAYOUT] = ctx->i32;
params[SI_PARAM_TCS_IN_LAYOUT] = ctx->i32;
+ params[ctx->param_oc_lds = SI_PARAM_TCS_OC_LDS] = ctx->i32;
params[SI_PARAM_TESS_FACTOR_OFFSET] = ctx->i32;
last_sgpr = SI_PARAM_TESS_FACTOR_OFFSET;
@@ -5037,8 +5048,10 @@ static void create_function(struct si_shader_context *ctx)
num_params = SI_PARAM_REL_IDS+1;
if (!ctx->is_monolithic) {
- /* PARAM_TESS_FACTOR_OFFSET is after user SGPRs. */
- for (i = 0; i <= SI_TCS_NUM_USER_SGPR; i++)
+ /* SI_PARAM_TCS_OC_LDS and PARAM_TESS_FACTOR_OFFSET are
+ * placed after the user SGPRs.
+ */
+ for (i = 0; i < SI_TCS_NUM_USER_SGPR + 2; i++)
returns[num_returns++] = ctx->i32; /* SGPRs */
for (i = 0; i < 3; i++)
@@ -5052,10 +5065,14 @@ static void create_function(struct si_shader_context *ctx)
num_params = SI_PARAM_TCS_OUT_LAYOUT+1;
if (shader->key.tes.as_es) {
+ params[ctx->param_oc_lds = num_params++] = ctx->i32;
+ params[ctx->param_tess_offchip = num_params++] = ctx->i32;
params[ctx->param_es2gs_offset = num_params++] = ctx->i32;
} else {
+ params[ctx->param_tess_offchip = num_params++] = ctx->i32;
declare_streamout_params(ctx, &shader->selector->so,
params, ctx->i32, &num_params);
+ params[ctx->param_oc_lds = num_params++] = ctx->i32;
}
last_sgpr = num_params - 1;
@@ -6602,6 +6619,7 @@ static bool si_compile_tcs_epilog(struct si_screen *sscreen,
params[SI_PARAM_TCS_OUT_OFFSETS] = ctx.i32;
params[SI_PARAM_TCS_OUT_LAYOUT] = ctx.i32;
params[SI_PARAM_TCS_IN_LAYOUT] = ctx.i32;
+ params[ctx.param_oc_lds = SI_PARAM_TCS_OC_LDS] = ctx.i32;
params[SI_PARAM_TESS_FACTOR_OFFSET] = ctx.i32;
last_sgpr = SI_PARAM_TESS_FACTOR_OFFSET;
num_params = last_sgpr + 1;
diff --git a/src/gallium/drivers/radeonsi/si_shader.h b/src/gallium/drivers/radeonsi/si_shader.h
index 0ab816c..61ddcd1 100644
--- a/src/gallium/drivers/radeonsi/si_shader.h
+++ b/src/gallium/drivers/radeonsi/si_shader.h
@@ -166,7 +166,8 @@ enum {
SI_PARAM_LS_OUT_LAYOUT, /* same value as TCS_IN_LAYOUT, LS only */
/* TCS only parameters. */
- SI_PARAM_TESS_FACTOR_OFFSET = SI_PARAM_TCS_IN_LAYOUT + 1,
+ SI_PARAM_TCS_OC_LDS = SI_PARAM_TCS_IN_LAYOUT + 1,
+ SI_PARAM_TESS_FACTOR_OFFSET,
SI_PARAM_PATCH_ID,
SI_PARAM_REL_IDS,
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 0fa32c8..32ac95d 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -355,6 +355,7 @@ static void si_shader_hs(struct si_shader *shader)
S_00B428_FLOAT_MODE(shader->config.float_mode));
si_pm4_set_reg(pm4, R_00B42C_SPI_SHADER_PGM_RSRC2_HS,
S_00B42C_USER_SGPR(SI_TCS_NUM_USER_SGPR) |
+ S_00B42C_OC_LDS_EN(1) |
S_00B42C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
}
@@ -364,6 +365,7 @@ static void si_shader_es(struct si_shader *shader)
unsigned num_user_sgprs;
unsigned vgpr_comp_cnt;
uint64_t va;
+ unsigned oc_lds_en;
pm4 = shader->pm4 = CALLOC_STRUCT(si_pm4_state);
@@ -382,6 +384,8 @@ static void si_shader_es(struct si_shader *shader)
} else
unreachable("invalid shader selector type");
+ oc_lds_en = shader->selector->type == PIPE_SHADER_TESS_EVAL ? 1 : 0;
+
si_pm4_set_reg(pm4, R_028AAC_VGT_ESGS_RING_ITEMSIZE,
shader->selector->esgs_itemsize / 4);
si_pm4_set_reg(pm4, R_00B320_SPI_SHADER_PGM_LO_ES, va >> 8);
@@ -394,6 +398,7 @@ static void si_shader_es(struct si_shader *shader)
S_00B328_FLOAT_MODE(shader->config.float_mode));
si_pm4_set_reg(pm4, R_00B32C_SPI_SHADER_PGM_RSRC2_ES,
S_00B32C_USER_SGPR(num_user_sgprs) |
+ S_00B32C_OC_LDS_EN(oc_lds_en) |
S_00B32C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
if (shader->selector->type == PIPE_SHADER_TESS_EVAL)
@@ -490,6 +495,7 @@ static void si_shader_vs(struct si_shader *shader, struct si_shader *gs)
unsigned num_user_sgprs;
unsigned nparams, vgpr_comp_cnt;
uint64_t va;
+ unsigned oc_lds_en;
unsigned window_space =
shader->selector->info.properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION];
bool enable_prim_id = si_vs_exports_prim_id(shader);
@@ -547,6 +553,8 @@ static void si_shader_vs(struct si_shader *shader, struct si_shader *gs)
V_02870C_SPI_SHADER_4COMP :
V_02870C_SPI_SHADER_NONE));
+ oc_lds_en = shader->selector->type == PIPE_SHADER_TESS_EVAL ? 1 : 0;
+
si_pm4_set_reg(pm4, R_00B120_SPI_SHADER_PGM_LO_VS, va >> 8);
si_pm4_set_reg(pm4, R_00B124_SPI_SHADER_PGM_HI_VS, va >> 40);
si_pm4_set_reg(pm4, R_00B128_SPI_SHADER_PGM_RSRC1_VS,
@@ -557,6 +565,7 @@ static void si_shader_vs(struct si_shader *shader, struct si_shader *gs)
S_00B128_FLOAT_MODE(shader->config.float_mode));
si_pm4_set_reg(pm4, R_00B12C_SPI_SHADER_PGM_RSRC2_VS,
S_00B12C_USER_SGPR(num_user_sgprs) |
+ S_00B12C_OC_LDS_EN(oc_lds_en) |
S_00B12C_SO_BASE0_EN(!!shader->selector->so.stride[0]) |
S_00B12C_SO_BASE1_EN(!!shader->selector->so.stride[1]) |
S_00B12C_SO_BASE2_EN(!!shader->selector->so.stride[2]) |
--
2.8.2
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