1 /* 2 * Copyright (c) 2018 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 */ 23 24 #ifndef INTEL_AUX_MAP_H 25 #define INTEL_AUX_MAP_H 26 27 #include "intel_buffer_alloc.h" 28 29 #include "isl/isl.h" 30 31 #include <stdint.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /** 38 * Auxiliary surface mapping implementation 39 * 40 * These functions are implemented in common code shared by drivers. 41 */ 42 43 struct intel_aux_map_context; 44 struct intel_device_info; 45 46 #define INTEL_AUX_MAP_ADDRESS_MASK 0x0000ffffffffff00ull 47 #define INTEL_AUX_MAP_FORMAT_BITS_MASK 0xfff0000000000000ull 48 #define INTEL_AUX_MAP_ENTRY_VALID_BIT 0x1ull 49 #define INTEL_AUX_MAP_GFX12_CCS_SCALE 256 50 #define INTEL_AUX_MAP_MAIN_PAGE_SIZE (64 * 1024) 51 #define INTEL_AUX_MAP_AUX_PAGE_SIZE \ 52 (INTEL_AUX_MAP_MAIN_PAGE_SIZE / INTEL_AUX_MAP_GFX12_CCS_SCALE) 53 54 struct intel_aux_map_context * 55 intel_aux_map_init(void *driver_ctx, 56 struct intel_mapped_pinned_buffer_alloc *buffer_alloc, 57 const struct intel_device_info *devinfo); 58 59 void 60 intel_aux_map_finish(struct intel_aux_map_context *ctx); 61 62 uint32_t 63 intel_aux_map_get_state_num(struct intel_aux_map_context *ctx); 64 65 /** Returns the current number of buffers used by the aux-map tables 66 * 67 * When preparing to execute a new batch, use this function to determine how 68 * many buffers will be required. More buffers may be added by concurrent 69 * accesses of the aux-map functions, but they won't be required for since 70 * they involve surfaces not used by this batch. 71 */ 72 uint32_t 73 intel_aux_map_get_num_buffers(struct intel_aux_map_context *ctx); 74 75 /** Fill an array of exec_object2 with aux-map buffer handles 76 * 77 * The intel_aux_map_get_num_buffers call should be made, then the driver can 78 * make sure the `obj` array is large enough before calling this function. 79 */ 80 void 81 intel_aux_map_fill_bos(struct intel_aux_map_context *ctx, void **driver_bos, 82 uint32_t max_bos); 83 84 uint64_t 85 intel_aux_map_get_base(struct intel_aux_map_context *ctx); 86 87 uint64_t 88 intel_aux_map_format_bits(enum isl_tiling tiling, enum isl_format format, 89 uint8_t plane); 90 91 uint64_t 92 intel_aux_map_format_bits_for_isl_surf(const struct isl_surf *isl_surf); 93 94 uint64_t * 95 intel_aux_map_get_entry(struct intel_aux_map_context *ctx, 96 uint64_t address, 97 uint64_t *entry_address); 98 99 void 100 intel_aux_map_add_mapping(struct intel_aux_map_context *ctx, uint64_t address, 101 uint64_t aux_address, uint64_t main_size_B, 102 uint64_t format_bits); 103 104 void 105 intel_aux_map_unmap_range(struct intel_aux_map_context *ctx, uint64_t address, 106 uint64_t size); 107 108 #ifdef __cplusplus 109 } 110 #endif 111 112 #endif /* INTEL_AUX_MAP_H */ 113