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r600/shader: fix thread id loading.

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This just changes how thread id loading is done, it makes
smaller shaders if we don't use thread id gprs.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2017-12-05 08:27:38 +00:00
parent 20d37da597
commit 4ee2b7c452
1 changed files with 18 additions and 9 deletions
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27
src/gallium/drivers/r600/r600_shader.c
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@@ -355,6 +355,7 @@ struct r600_shader_ctx {
unsigned tess_input_info; /* temp with tess input offsets */
unsigned tess_output_info; /* temp with tess input offsets */
unsigned thread_id_gpr; /* temp with thread id calculated for images */
bool thread_id_gpr_loaded;
};
struct r600_shader_tgsi_instruction {
@@ -2981,6 +2982,9 @@ static int load_thread_id_gpr(struct r600_shader_ctx *ctx)
struct r600_bytecode_alu alu;
int r;
if (ctx->thread_id_gpr_loaded)
return 0;
memset(&alu, 0, sizeof(struct r600_bytecode_alu));
alu.op = ALU_OP1_MBCNT_32LO_ACCUM_PREV_INT;
alu.dst.sel = ctx->temp_reg;
@@ -3025,6 +3029,7 @@ static int load_thread_id_gpr(struct r600_shader_ctx *ctx)
ctx->temp_reg, 0);
if (r)
return r;
ctx->thread_id_gpr_loaded = true;
return 0;
}
@@ -3128,6 +3133,7 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
ctx.fragcoord_input = -1;
ctx.colors_used = 0;
ctx.clip_vertex_write = 0;
ctx.thread_id_gpr_loaded = false;
shader->nr_ps_color_exports = 0;
shader->nr_ps_max_color_exports = 0;
@@ -3235,11 +3241,10 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
ctx.temp_reg = ctx.bc->ar_reg + 3;
}
if (shader->uses_images && ctx.type == PIPE_SHADER_FRAGMENT) {
ctx.thread_id_gpr = ctx.temp_reg;
ctx.temp_reg++;
} else
ctx.thread_id_gpr = 0;
if (shader->uses_images) {
ctx.thread_id_gpr = ctx.temp_reg++;
ctx.thread_id_gpr_loaded = false;
}
shader->max_arrays = 0;
shader->num_arrays = 0;
@@ -3393,10 +3398,6 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
}
}
if (ctx.thread_id_gpr) {
load_thread_id_gpr(&ctx);
}
if (ctx.type == PIPE_SHADER_GEOMETRY) {
struct r600_bytecode_alu alu;
int r;
@@ -8037,6 +8038,10 @@ static int tgsi_load_rat(struct r600_shader_ctx *ctx)
unsigned rat_index_mode;
unsigned immed_base;
r = load_thread_id_gpr(ctx);
if (r)
return r;
rat_index_mode = inst->Src[0].Indirect.Index == 2 ? 2 : 0; // CF_INDEX_1 : CF_INDEX_NONE
immed_base = R600_IMAGE_IMMED_RESOURCE_OFFSET;
@@ -8280,6 +8285,10 @@ static int tgsi_atomic_op_rat(struct r600_shader_ctx *ctx)
immed_base = R600_IMAGE_IMMED_RESOURCE_OFFSET;
rat_base = ctx->shader->rat_base;
r = load_thread_id_gpr(ctx);
if (r)
return r;
if (inst->Src[0].Register.File == TGSI_FILE_BUFFER) {
immed_base += ctx->info.file_count[TGSI_FILE_IMAGE];
rat_base += ctx->info.file_count[TGSI_FILE_IMAGE];