/**************************************************************************
*
- * Copyright 2010 VMware, Inc.
+ * Copyright 2010-2012 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
#ifndef LP_BLD_LIMITS_H_
#define LP_BLD_LIMITS_H_
+
+#include <limits.h>
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+
+
/*
* TGSI translation limits.
*
* the state trackers.
*/
-#define LP_MAX_TGSI_TEMPS 256
+#define LP_MAX_TGSI_TEMPS 4096
#define LP_MAX_TGSI_ADDRS 16
-#define LP_MAX_TGSI_IMMEDIATES 256
+#define LP_MAX_TGSI_IMMEDIATES 4096
+
+#define LP_MAX_TGSI_CONSTS 4096
+
+#define LP_MAX_TGSI_CONST_BUFFERS 16
+
+#define LP_MAX_TGSI_CONST_BUFFER_SIZE (LP_MAX_TGSI_CONSTS * sizeof(float[4]))
+
+#define LP_MAX_TGSI_SHADER_BUFFERS 16
+
+#define LP_MAX_TGSI_SHADER_BUFFER_SIZE (1 << 27)
+
+#define LP_MAX_TGSI_SHADER_IMAGES 8
+
+/*
+ * For quick access we cache registers in statically
+ * allocated arrays. Here we define the maximum size
+ * for those arrays.
+ */
+#define LP_MAX_INLINED_TEMPS 256
+
+#define LP_MAX_INLINED_IMMEDIATES 256
/**
* Maximum control flow nesting
*
- * SM3.0 requires 24
+ * SM4.0 requires 64 (per subroutine actually, subroutine nesting itself is 32)
+ * SM3.0 requires 24 (most likely per subroutine too)
+ * add 2 more (some translation could add one more)
+ */
+#define LP_MAX_TGSI_NESTING 66
+
+/**
+ * Maximum iterations before loop termination
+ * Shared between every loop in a TGSI shader
+ */
+#define LP_MAX_TGSI_LOOP_ITERATIONS 65535
+
+
+/**
+ * Some of these limits are actually infinite (i.e., only limited by available
+ * memory), however advertising INT_MAX would cause some test problems to
+ * actually try to allocate the maximum and run out of memory and crash. So
+ * stick with something reasonable here.
*/
-#define LP_MAX_TGSI_NESTING 32
+static inline int
+gallivm_get_shader_param(enum pipe_shader_cap param)
+{
+ switch(param) {
+ case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
+ case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
+ case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
+ case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
+ return 1 * 1024 * 1024;
+ case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
+ return LP_MAX_TGSI_NESTING;
+ case PIPE_SHADER_CAP_MAX_INPUTS:
+ return 32;
+ case PIPE_SHADER_CAP_MAX_OUTPUTS:
+ return 32;
+ case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
+ return LP_MAX_TGSI_CONST_BUFFER_SIZE;
+ case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
+ return PIPE_MAX_CONSTANT_BUFFERS;
+ case PIPE_SHADER_CAP_MAX_TEMPS:
+ return LP_MAX_TGSI_TEMPS;
+ case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
+ return 1;
+ case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
+ case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
+ case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
+ case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
+ return 1;
+ case PIPE_SHADER_CAP_SUBROUTINES:
+ return 1;
+ case PIPE_SHADER_CAP_INTEGERS:
+ return 1;
+ case PIPE_SHADER_CAP_INT64_ATOMICS:
+ case PIPE_SHADER_CAP_FP16:
+ return 0;
+ case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
+ return PIPE_MAX_SAMPLERS;
+ case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
+ return PIPE_MAX_SHADER_SAMPLER_VIEWS;
+ case PIPE_SHADER_CAP_PREFERRED_IR:
+ return PIPE_SHADER_IR_TGSI;
+ case PIPE_SHADER_CAP_SUPPORTED_IRS:
+ return 1 << PIPE_SHADER_IR_TGSI;
+ case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
+ case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
+ return 1;
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+ case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
+ case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
+ case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
+ case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
+ case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
+ case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
+ case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
+ return 0;
+ case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
+ return 32;
+ case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
+ return LP_MAX_TGSI_SHADER_BUFFERS;
+ case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
+ return LP_MAX_TGSI_SHADER_IMAGES;
+ }
+ /* if we get here, we missed a shader cap above (and should have seen
+ * a compiler warning.)
+ */
+ return 0;
+}
#endif /* LP_BLD_LIMITS_H_ */