1 /**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28
29 #ifndef LP_BLD_INIT_H
30 #define LP_BLD_INIT_H
31
32
33 #include "util/compiler.h"
34 #include "util/u_pointer.h" // for func_pointer
35 #include "util/u_cpu_detect.h"
36 #include "lp_bld.h"
37 #include "lp_bld_passmgr.h"
38
39 #if GALLIVM_USE_ORCJIT
40 #include <llvm-c/Orc.h>
41 #else
42 #include <llvm-c/ExecutionEngine.h>
43 #endif
44
45 #ifdef __cplusplus
46 extern "C" {
47 #endif
48
49 struct lp_cached_code;
50 struct gallivm_state
51 {
52 char *module_name;
53 LLVMModuleRef module;
54 LLVMTargetDataRef target;
55 #if GALLIVM_USE_ORCJIT
56 /* own this->module */
57 LLVMOrcThreadSafeContextRef _ts_context;
58 /* each module is in its own jitdylib */
59 LLVMOrcJITDylibRef _per_module_jd;
60 #else
61 LLVMExecutionEngineRef engine;
62 struct lp_passmgr *passmgr;
63 LLVMMCJITMemoryManagerRef memorymgr;
64 struct lp_generated_code *code;
65 #endif
66 LLVMContextRef context;
67 LLVMBuilderRef builder;
68 struct lp_cached_code *cache;
69 unsigned compiled;
70 LLVMValueRef coro_malloc_hook;
71 LLVMValueRef coro_free_hook;
72 LLVMValueRef debug_printf_hook;
73
74 LLVMTypeRef coro_malloc_hook_type;
75 LLVMTypeRef coro_free_hook_type;
76
77 LLVMValueRef get_time_hook;
78
79 LLVMValueRef texture_descriptor;
80 LLVMValueRef sampler_descriptor;
81 };
82
83 unsigned
84 lp_build_init_native_width(void);
85
86 bool
87 lp_build_init(void);
88
89
90 struct gallivm_state *
91 gallivm_create(const char *name, lp_context_ref *context,
92 struct lp_cached_code *cache);
93
94 void
95 gallivm_destroy(struct gallivm_state *gallivm);
96
97 void
98 gallivm_free_ir(struct gallivm_state *gallivm);
99
100 void
101 gallivm_verify_function(struct gallivm_state *gallivm,
102 LLVMValueRef func);
103
104 void
105 gallivm_add_global_mapping(struct gallivm_state *gallivm, LLVMValueRef sym, void* addr);
106
107 /**
108 * for ORCJIT, after this function gets called, all access and modification to
109 * module and any structure associated to it should be avoided,
110 * as module has been moved into ORCJIT and may be recycled
111 */
112 void
113 gallivm_compile_module(struct gallivm_state *gallivm);
114
115 func_pointer
116 gallivm_jit_function(struct gallivm_state *gallivm,
117 LLVMValueRef func, const char *func_name);
118
119 void
120 gallivm_stub_func(struct gallivm_state *gallivm, LLVMValueRef func);
121
122 unsigned gallivm_get_perf_flags(void);
123
124 void lp_init_clock_hook(struct gallivm_state *gallivm);
125
126 void lp_init_env_options(void);
127
128 static inline void
lp_bld_ppc_disable_denorms(void)129 lp_bld_ppc_disable_denorms(void)
130 {
131 #if DETECT_ARCH_PPC_64
132 /* Set the NJ bit in VSCR to 0 so denormalized values are handled as
133 * specified by IEEE standard (PowerISA 2.06 - Section 6.3). This guarantees
134 * that some rounding and half-float to float handling does not round
135 * incorrectly to 0.
136 * XXX: should eventually follow same logic on all platforms.
137 * Right now denorms get explicitly disabled (but elsewhere) for x86,
138 * whereas ppc64 explicitly enables them...
139 */
140 if (util_get_cpu_caps()->has_altivec) {
141 unsigned short mask[] = { 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
142 0xFFFF, 0xFFFF, 0xFFFE, 0xFFFF };
143 __asm (
144 "mfvscr %%v1\n"
145 "vand %0,%%v1,%0\n"
146 "mtvscr %0"
147 :
148 : "r" (*mask)
149 );
150 }
151 #endif
152 }
153
154 #ifdef __cplusplus
155 }
156 #endif
157
158 #endif /* !LP_BLD_INIT_H */
159