| /* |
| * Copyright (C) 2020 Collabora, Ltd. |
| * |
| * 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. |
| */ |
| |
| #ifndef __PAN_IR_H |
| #define __PAN_IR_H |
| |
| #include <stdint.h> |
| #include "panfrost-job.h" |
| #include "compiler/nir/nir.h" |
| #include "util/u_dynarray.h" |
| #include "util/hash_table.h" |
| |
| /* Define the general compiler entry point */ |
| |
| #define MAX_SYSVAL_COUNT 32 |
| |
| /* Allow 2D of sysval IDs, while allowing nonparametric sysvals to equal |
| * their class for equal comparison */ |
| |
| #define PAN_SYSVAL(type, no) (((no) << 16) | PAN_SYSVAL_##type) |
| #define PAN_SYSVAL_TYPE(sysval) ((sysval) & 0xffff) |
| #define PAN_SYSVAL_ID(sysval) ((sysval) >> 16) |
| |
| /* Define some common types. We start at one for easy indexing of hash |
| * tables internal to the compiler */ |
| |
| enum { |
| PAN_SYSVAL_VIEWPORT_SCALE = 1, |
| PAN_SYSVAL_VIEWPORT_OFFSET = 2, |
| PAN_SYSVAL_TEXTURE_SIZE = 3, |
| PAN_SYSVAL_SSBO = 4, |
| PAN_SYSVAL_NUM_WORK_GROUPS = 5, |
| PAN_SYSVAL_SAMPLER = 7, |
| }; |
| |
| #define PAN_TXS_SYSVAL_ID(texidx, dim, is_array) \ |
| ((texidx) | ((dim) << 7) | ((is_array) ? (1 << 9) : 0)) |
| |
| #define PAN_SYSVAL_ID_TO_TXS_TEX_IDX(id) ((id) & 0x7f) |
| #define PAN_SYSVAL_ID_TO_TXS_DIM(id) (((id) >> 7) & 0x3) |
| #define PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(id) !!((id) & (1 << 9)) |
| |
| /* Special attribute slots for vertex builtins. Sort of arbitrary but let's be |
| * consistent with the blob so we can compare traces easier. */ |
| |
| enum { |
| PAN_VERTEX_ID = 16, |
| PAN_INSTANCE_ID = 17, |
| PAN_MAX_ATTRIBUTE |
| }; |
| |
| struct panfrost_sysvals { |
| /* The mapping of sysvals to uniforms, the count, and the off-by-one inverse */ |
| unsigned sysvals[MAX_SYSVAL_COUNT]; |
| unsigned sysval_count; |
| struct hash_table_u64 *sysval_to_id; |
| }; |
| |
| void |
| panfrost_nir_assign_sysvals(struct panfrost_sysvals *ctx, nir_shader *shader); |
| |
| int |
| panfrost_sysval_for_instr(nir_instr *instr, nir_dest *dest); |
| |
| typedef struct { |
| int work_register_count; |
| int uniform_cutoff; |
| |
| /* For Bifrost - output type for each RT */ |
| nir_alu_type blend_types[8]; |
| |
| /* Prepended before uniforms, mapping to SYSVAL_ names for the |
| * sysval */ |
| |
| unsigned sysval_count; |
| unsigned sysvals[MAX_SYSVAL_COUNT]; |
| |
| /* Boolean properties of the program */ |
| bool writes_point_size; |
| |
| int first_tag; |
| |
| struct util_dynarray compiled; |
| |
| /* For a blend shader using a constant color -- patch point. If |
| * negative, there's no constant. */ |
| |
| int blend_patch_offset; |
| |
| /* The number of bytes to allocate per-thread for Thread Local Storage |
| * (register spilling), or zero if no spilling is used */ |
| unsigned tls_size; |
| |
| /* IN: For a fragment shader with a lowered alpha test, the ref value */ |
| float alpha_ref; |
| } panfrost_program; |
| |
| typedef struct pan_block { |
| /* Link to next block. Must be first for mir_get_block */ |
| struct list_head link; |
| |
| /* List of instructions emitted for the current block */ |
| struct list_head instructions; |
| |
| /* Index of the block in source order */ |
| unsigned name; |
| |
| /* Control flow graph */ |
| struct pan_block *successors[2]; |
| struct set *predecessors; |
| |
| /* In liveness analysis, these are live masks (per-component) for |
| * indices for the block. Scalar compilers have the luxury of using |
| * simple bit fields, but for us, liveness is a vector idea. */ |
| uint16_t *live_in; |
| uint16_t *live_out; |
| } pan_block; |
| |
| struct pan_instruction { |
| struct list_head link; |
| }; |
| |
| #define pan_foreach_instr_in_block_rev(block, v) \ |
| list_for_each_entry_rev(struct pan_instruction, v, &block->instructions, link) |
| |
| #define pan_foreach_successor(blk, v) \ |
| pan_block *v; \ |
| pan_block **_v; \ |
| for (_v = (pan_block **) &blk->successors[0], \ |
| v = *_v; \ |
| v != NULL && _v < (pan_block **) &blk->successors[2]; \ |
| _v++, v = *_v) \ |
| |
| #define pan_foreach_predecessor(blk, v) \ |
| struct set_entry *_entry_##v; \ |
| struct pan_block *v; \ |
| for (_entry_##v = _mesa_set_next_entry(blk->predecessors, NULL), \ |
| v = (struct pan_block *) (_entry_##v ? _entry_##v->key : NULL); \ |
| _entry_##v != NULL; \ |
| _entry_##v = _mesa_set_next_entry(blk->predecessors, _entry_##v), \ |
| v = (struct pan_block *) (_entry_##v ? _entry_##v->key : NULL)) |
| |
| |
| typedef void (*pan_liveness_update)(uint16_t *, void *, unsigned max); |
| |
| void pan_liveness_gen(uint16_t *live, unsigned node, unsigned max, uint16_t mask); |
| void pan_liveness_kill(uint16_t *live, unsigned node, unsigned max, uint16_t mask); |
| bool pan_liveness_get(uint16_t *live, unsigned node, uint16_t max); |
| |
| void pan_compute_liveness(struct list_head *blocks, |
| unsigned temp_count, |
| pan_liveness_update callback); |
| |
| void pan_free_liveness(struct list_head *blocks); |
| |
| uint16_t |
| pan_to_bytemask(unsigned bytes, unsigned mask); |
| |
| void pan_block_add_successor(pan_block *block, pan_block *successor); |
| |
| #endif |