2 * Copyright 2016 Advanced Micro Devices, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 #ifndef SI_SHADER_PRIVATE_H
26 #define SI_SHADER_PRIVATE_H
28 #include "ac_shader_abi.h"
29 #include "si_shader.h"
31 struct pipe_debug_callback
;
33 #define RADEON_LLVM_MAX_INPUTS 32 * 4
35 /* Ideally pass the sample mask input to the PS epilog as v14, which
36 * is its usual location, so that the shader doesn't have to add v_mov.
38 #define PS_EPILOG_SAMPLEMASK_MIN_LOC 14
40 struct si_shader_output_values
{
41 LLVMValueRef values
[4];
42 unsigned semantic_name
;
43 unsigned semantic_index
;
44 ubyte vertex_stream
[4];
47 struct si_shader_context
{
48 struct ac_llvm_context ac
;
49 struct si_shader
*shader
;
50 struct si_screen
*screen
;
52 unsigned type
; /* PIPE_SHADER_* specifies the type of shader. */
53 gl_shader_stage stage
;
55 /* For clamping the non-constant index in resource indexing: */
56 unsigned num_const_buffers
;
57 unsigned num_shader_buffers
;
59 unsigned num_samplers
;
61 struct ac_shader_args args
;
62 struct ac_shader_abi abi
;
64 LLVMValueRef inputs
[RADEON_LLVM_MAX_INPUTS
];
66 LLVMBasicBlockRef merged_wrap_if_entry_block
;
67 int merged_wrap_if_label
;
70 LLVMTypeRef return_type
;
72 struct ac_arg const_and_shader_buffers
;
73 struct ac_arg samplers_and_images
;
75 /* For merged shaders, the per-stage descriptors for the stage other
76 * than the one we're processing, used to pass them through from the
77 * first stage to the second.
79 struct ac_arg other_const_and_shader_buffers
;
80 struct ac_arg other_samplers_and_images
;
82 struct ac_arg rw_buffers
;
83 struct ac_arg bindless_samplers_and_images
;
84 /* Common inputs for merged shaders. */
85 struct ac_arg merged_wave_info
;
86 struct ac_arg merged_scratch_offset
;
87 struct ac_arg small_prim_cull_info
;
89 struct ac_arg vertex_buffers
;
90 struct ac_arg vb_descriptors
[5];
91 struct ac_arg rel_auto_id
;
92 struct ac_arg vs_prim_id
;
93 struct ac_arg vertex_index0
;
94 /* VS states and layout of LS outputs / TCS inputs at the end
95 * [0] = clamp vertex color
97 * [2:3] = NGG: output primitive type
98 * [4:5] = NGG: provoking vertex index
99 * [6] = NGG: streamout queries enabled
100 * [7:10] = NGG: small prim filter precision = num_samples / quant_mode,
101 * but in reality it's: 1/2^n, from 1/16 to 1/4096 = 1/2^4 to 1/2^12
102 * Only the first 4 bits of the exponent are stored.
103 * Set it like this: (fui(num_samples / quant_mode) >> 23)
104 * Expand to FP32 like this: ((0x70 | value) << 23);
105 * With 0x70 = 112, we get 2^(112 + value - 127) = 2^(value - 15)
106 * = 1/2^(15 - value) in FP32
107 * [11:23] = stride between patches in DW = num_inputs * num_vertices * 4
108 * max = 32*32*4 + 32*4
109 * [24:31] = stride between vertices in DW = num_inputs * 4
112 struct ac_arg vs_state_bits
;
113 struct ac_arg vs_blit_inputs
;
114 struct ac_arg ngg_old_thread_id
; /* generated by the NGG cull shader */
116 struct ac_arg streamout_config
;
117 struct ac_arg streamout_write_index
;
118 struct ac_arg streamout_offset
[4];
121 /* Layout of TCS outputs in the offchip buffer
123 * [0:5] = the number of patches per threadgroup, max = NUM_PATCHES (40)
125 * [6:11] = the number of output vertices per patch, max = 32
127 * [12:31] = the offset of per patch attributes in the buffer in bytes.
128 * max = NUM_PATCHES*32*32*16
130 struct ac_arg tcs_offchip_layout
;
133 /* Offsets where TCS outputs and TCS patch outputs live in LDS:
134 * [0:15] = TCS output patch0 offset / 16, max = NUM_PATCHES * 32 * 32
135 * [16:31] = TCS output patch0 offset for per-patch / 16
136 * max = (NUM_PATCHES + 1) * 32*32
138 struct ac_arg tcs_out_lds_offsets
;
139 /* Layout of TCS outputs / TES inputs:
140 * [0:12] = stride between output patches in DW, num_outputs * num_vertices * 4
141 * max = 32*32*4 + 32*4
142 * [13:18] = gl_PatchVerticesIn, max = 32
143 * [19:31] = high 13 bits of the 32-bit address of tessellation ring buffers
145 struct ac_arg tcs_out_lds_layout
;
146 struct ac_arg tcs_offchip_offset
;
147 struct ac_arg tcs_factor_offset
;
150 struct ac_arg tes_offchip_addr
;
153 struct ac_arg tes_rel_patch_id
;
155 struct ac_arg es2gs_offset
;
158 * - bits 0..11: ordered_wave_id
159 * - bits 12..20: number of vertices in group
160 * - bits 22..30: number of primitives in group
162 struct ac_arg gs_tg_info
;
164 struct ac_arg gs2vs_offset
;
165 struct ac_arg gs_wave_id
; /* GFX6 */
166 struct ac_arg gs_vtx_offset
[6]; /* in dwords (GFX6) */
167 struct ac_arg gs_vtx01_offset
; /* in dwords (GFX9) */
168 struct ac_arg gs_vtx23_offset
; /* in dwords (GFX9) */
169 struct ac_arg gs_vtx45_offset
; /* in dwords (GFX9) */
171 struct ac_arg pos_fixed_pt
;
173 struct ac_arg block_size
;
174 struct ac_arg cs_user_data
;
175 struct ac_arg cs_shaderbuf
[3];
176 struct ac_arg cs_image
[3];
178 struct ac_llvm_compiler
*compiler
;
180 /* Preloaded descriptors. */
181 LLVMValueRef esgs_ring
;
182 LLVMValueRef gsvs_ring
[4];
183 LLVMValueRef tess_offchip_ring
;
185 LLVMValueRef invoc0_tess_factors
[6]; /* outer[4], inner[2] */
186 LLVMValueRef gs_next_vertex
[4];
187 LLVMValueRef gs_curprim_verts
[4];
188 LLVMValueRef gs_generated_prims
[4];
189 LLVMValueRef gs_ngg_emit
;
190 LLVMValueRef gs_ngg_scratch
;
191 LLVMValueRef postponed_kill
;
192 LLVMValueRef return_value
;
195 static inline struct si_shader_context
*si_shader_context_from_abi(struct ac_shader_abi
*abi
)
197 struct si_shader_context
*ctx
= NULL
;
198 return container_of(abi
, ctx
, abi
);
201 bool si_is_multi_part_shader(struct si_shader
*shader
);
202 bool si_is_merged_shader(struct si_shader
*shader
);
203 void si_add_arg_checked(struct ac_shader_args
*args
, enum ac_arg_regfile file
, unsigned registers
,
204 enum ac_arg_type type
, struct ac_arg
*arg
, unsigned idx
);
205 unsigned si_get_max_workgroup_size(const struct si_shader
*shader
);
206 bool si_need_ps_prolog(const union si_shader_part_key
*key
);
207 void si_get_ps_prolog_key(struct si_shader
*shader
, union si_shader_part_key
*key
,
208 bool separate_prolog
);
209 void si_get_ps_epilog_key(struct si_shader
*shader
, union si_shader_part_key
*key
);
210 void si_fix_resource_usage(struct si_screen
*sscreen
, struct si_shader
*shader
);
211 void si_create_function(struct si_shader_context
*ctx
, bool ngg_cull_shader
);
213 bool gfx10_ngg_export_prim_early(struct si_shader
*shader
);
214 void gfx10_ngg_build_sendmsg_gs_alloc_req(struct si_shader_context
*ctx
);
215 void gfx10_ngg_build_export_prim(struct si_shader_context
*ctx
, LLVMValueRef user_edgeflags
[3],
216 LLVMValueRef prim_passthrough
);
217 void gfx10_emit_ngg_culling_epilogue(struct ac_shader_abi
*abi
, unsigned max_outputs
,
218 LLVMValueRef
*addrs
);
219 void gfx10_emit_ngg_epilogue(struct ac_shader_abi
*abi
, unsigned max_outputs
, LLVMValueRef
*addrs
);
220 void gfx10_ngg_gs_emit_vertex(struct si_shader_context
*ctx
, unsigned stream
, LLVMValueRef
*addrs
);
221 void gfx10_ngg_gs_emit_prologue(struct si_shader_context
*ctx
);
222 void gfx10_ngg_gs_emit_epilogue(struct si_shader_context
*ctx
);
223 unsigned gfx10_ngg_get_scratch_dw_size(struct si_shader
*shader
);
224 bool gfx10_ngg_calculate_subgroup_info(struct si_shader
*shader
);
226 /* si_shader_llvm.c */
227 bool si_compile_llvm(struct si_screen
*sscreen
, struct si_shader_binary
*binary
,
228 struct ac_shader_config
*conf
, struct ac_llvm_compiler
*compiler
,
229 struct ac_llvm_context
*ac
, struct pipe_debug_callback
*debug
,
230 gl_shader_stage stage
, const char *name
, bool less_optimized
);
231 void si_llvm_context_init(struct si_shader_context
*ctx
, struct si_screen
*sscreen
,
232 struct ac_llvm_compiler
*compiler
, unsigned wave_size
);
233 void si_llvm_create_func(struct si_shader_context
*ctx
, const char *name
, LLVMTypeRef
*return_types
,
234 unsigned num_return_elems
, unsigned max_workgroup_size
);
235 void si_llvm_optimize_module(struct si_shader_context
*ctx
);
236 void si_llvm_dispose(struct si_shader_context
*ctx
);
237 LLVMValueRef
si_buffer_load_const(struct si_shader_context
*ctx
, LLVMValueRef resource
,
238 LLVMValueRef offset
);
239 void si_llvm_build_ret(struct si_shader_context
*ctx
, LLVMValueRef ret
);
240 LLVMValueRef
si_insert_input_ret(struct si_shader_context
*ctx
, LLVMValueRef ret
,
241 struct ac_arg param
, unsigned return_index
);
242 LLVMValueRef
si_insert_input_ret_float(struct si_shader_context
*ctx
, LLVMValueRef ret
,
243 struct ac_arg param
, unsigned return_index
);
244 LLVMValueRef
si_insert_input_ptr(struct si_shader_context
*ctx
, LLVMValueRef ret
,
245 struct ac_arg param
, unsigned return_index
);
246 LLVMValueRef
si_prolog_get_rw_buffers(struct si_shader_context
*ctx
);
247 LLVMValueRef
si_build_gather_64bit(struct si_shader_context
*ctx
, LLVMTypeRef type
,
248 LLVMValueRef val1
, LLVMValueRef val2
);
249 void si_llvm_emit_barrier(struct si_shader_context
*ctx
);
250 void si_llvm_declare_esgs_ring(struct si_shader_context
*ctx
);
251 void si_init_exec_from_input(struct si_shader_context
*ctx
, struct ac_arg param
,
253 LLVMValueRef
si_unpack_param(struct si_shader_context
*ctx
, struct ac_arg param
, unsigned rshift
,
255 LLVMValueRef
si_get_primitive_id(struct si_shader_context
*ctx
, unsigned swizzle
);
256 LLVMValueRef
si_llvm_get_block_size(struct ac_shader_abi
*abi
);
257 void si_llvm_declare_compute_memory(struct si_shader_context
*ctx
);
258 bool si_nir_build_llvm(struct si_shader_context
*ctx
, struct nir_shader
*nir
);
259 void si_build_wrapper_function(struct si_shader_context
*ctx
, LLVMValueRef
*parts
,
260 unsigned num_parts
, unsigned main_part
,
261 unsigned next_shader_first_part
);
263 /* si_shader_llvm_gs.c */
264 LLVMValueRef
si_is_es_thread(struct si_shader_context
*ctx
);
265 LLVMValueRef
si_is_gs_thread(struct si_shader_context
*ctx
);
266 void si_llvm_emit_es_epilogue(struct ac_shader_abi
*abi
, unsigned max_outputs
, LLVMValueRef
*addrs
);
267 void si_preload_esgs_ring(struct si_shader_context
*ctx
);
268 void si_preload_gs_rings(struct si_shader_context
*ctx
);
269 void si_llvm_build_gs_prolog(struct si_shader_context
*ctx
, union si_shader_part_key
*key
);
270 void si_llvm_init_gs_callbacks(struct si_shader_context
*ctx
);
272 /* si_shader_llvm_tess.c */
273 void si_llvm_preload_tes_rings(struct si_shader_context
*ctx
);
274 void si_llvm_emit_ls_epilogue(struct ac_shader_abi
*abi
, unsigned max_outputs
, LLVMValueRef
*addrs
);
275 void si_llvm_build_tcs_epilog(struct si_shader_context
*ctx
, union si_shader_part_key
*key
);
276 void si_llvm_init_tcs_callbacks(struct si_shader_context
*ctx
);
277 void si_llvm_init_tes_callbacks(struct si_shader_context
*ctx
, bool ngg_cull_shader
);
279 /* si_shader_llvm_ps.c */
280 LLVMValueRef
si_get_sample_id(struct si_shader_context
*ctx
);
281 void si_llvm_build_ps_prolog(struct si_shader_context
*ctx
, union si_shader_part_key
*key
);
282 void si_llvm_build_ps_epilog(struct si_shader_context
*ctx
, union si_shader_part_key
*key
);
283 void si_llvm_build_monolithic_ps(struct si_shader_context
*ctx
, struct si_shader
*shader
);
284 void si_llvm_init_ps_callbacks(struct si_shader_context
*ctx
);
286 /* si_shader_llvm_resources.c */
287 void si_llvm_init_resource_callbacks(struct si_shader_context
*ctx
);
289 /* si_shader_llvm_vs.c */
290 void si_llvm_load_vs_inputs(struct si_shader_context
*ctx
, struct nir_shader
*nir
);
291 void si_llvm_streamout_store_output(struct si_shader_context
*ctx
, LLVMValueRef
const *so_buffers
,
292 LLVMValueRef
const *so_write_offsets
,
293 struct pipe_stream_output
*stream_out
,
294 struct si_shader_output_values
*shader_out
);
295 void si_llvm_emit_streamout(struct si_shader_context
*ctx
, struct si_shader_output_values
*outputs
,
296 unsigned noutput
, unsigned stream
);
297 void si_llvm_build_vs_exports(struct si_shader_context
*ctx
,
298 struct si_shader_output_values
*outputs
, unsigned noutput
);
299 void si_llvm_emit_vs_epilogue(struct ac_shader_abi
*abi
, unsigned max_outputs
, LLVMValueRef
*addrs
);
300 void si_llvm_build_vs_prolog(struct si_shader_context
*ctx
, union si_shader_part_key
*key
);
301 void si_llvm_init_vs_callbacks(struct si_shader_context
*ctx
, bool ngg_cull_shader
);