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Diffstat (limited to 'src/gallium/drivers/radeon/radeon_llvm.h')
| -rw-r--r-- | src/gallium/drivers/radeon/radeon_llvm.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/radeon_llvm.h b/src/gallium/drivers/radeon/radeon_llvm.h new file mode 100644 index 00000000000..14c9ecbb865 --- /dev/null +++ b/src/gallium/drivers/radeon/radeon_llvm.h @@ -0,0 +1,136 @@ +/* + * Copyright 2011 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: Tom Stellard <thomas.stellard@amd.com> + * + */ + +#ifndef LLVM_GPU_H +#define LLVM_GPU_H + +#include <llvm-c/Core.h> +#include "gallivm/lp_bld_init.h" +#include "gallivm/lp_bld_tgsi.h" + +#define RADEON_LLVM_MAX_INPUTS 16 * 4 +#define RADEON_LLVM_MAX_OUTPUTS 16 * 4 +#define RADEON_LLVM_MAX_BRANCH_DEPTH 16 +#define RADEON_LLVM_MAX_LOOP_DEPTH 16 + +#ifdef __cplusplus +extern "C" { +#endif + +struct radeon_llvm_branch { + LLVMBasicBlockRef endif_block; + LLVMBasicBlockRef if_block; + LLVMBasicBlockRef else_block; + unsigned has_else; +}; + +struct radeon_llvm_loop { + LLVMBasicBlockRef loop_block; + LLVMBasicBlockRef endloop_block; +}; + +struct radeon_llvm_context { + + struct lp_build_tgsi_soa_context soa; + + /*=== Front end configuration ===*/ + + /* Special Intrinsics */ + + /** Write to an output register: float store_output(float, i32) */ + const char * store_output_intr; + + /** Swizzle a vector value: <4 x float> swizzle(<4 x float>, i32) + * The swizzle is an unsigned integer that encodes a TGSI_SWIZZLE_* value + * in 2-bits. + * Swizzle{0-1} = X Channel + * Swizzle{2-3} = Y Channel + * Swizzle{4-5} = Z Channel + * Swizzle{6-7} = W Channel + */ + const char * swizzle_intr; + + /* Instructions that are not described by any of the TGSI opcodes. */ + + /** This function is responsible for initilizing the inputs array and will be + * called once for each input declared in the TGSI shader. + */ + void (*load_input)(struct radeon_llvm_context *, + unsigned input_index, + const struct tgsi_full_declaration *decl); + + + /** User data to use with the callbacks */ + void * userdata; + + /** This array contains the input values for the shader. Typically these + * values will be in the form of a target intrinsic that will inform the + * backend how to load the actual inputs to the shader. + */ + LLVMValueRef inputs[RADEON_LLVM_MAX_INPUTS]; + LLVMValueRef outputs[RADEON_LLVM_MAX_OUTPUTS][TGSI_NUM_CHANNELS]; + unsigned output_reg_count; + + unsigned reserved_reg_count; + /*=== Private Members ===*/ + + struct radeon_llvm_branch branch[RADEON_LLVM_MAX_BRANCH_DEPTH]; + struct radeon_llvm_loop loop[RADEON_LLVM_MAX_LOOP_DEPTH]; + + unsigned branch_depth; + unsigned loop_depth; + + + LLVMValueRef main_fn; + + struct gallivm_state gallivm; +}; + +unsigned radeon_llvm_compile( + LLVMModuleRef M, + unsigned char ** bytes, + unsigned * byte_count, + const char * gpu_family, + unsigned dump); + +void radeon_llvm_context_init(struct radeon_llvm_context * ctx); + +void radeon_llvm_dispose(struct radeon_llvm_context * ctx); + +inline static struct radeon_llvm_context * radeon_llvm_context( + struct lp_build_tgsi_context * bld_base) +{ + return (struct radeon_llvm_context*)bld_base; +} + +unsigned radeon_llvm_reg_index_soa(unsigned index, unsigned chan); + +void radeon_llvm_finalize_module(struct radeon_llvm_context * ctx); + +#ifdef __cplusplus +} +#endif +#endif /* LLVM_GPU_H */ |