1 /* 2 * Copyright 2015 Advanced Micro Devices, Inc. 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 /* DC interface (public) */ 27 #include "dm_services.h" 28 #include "dc.h" 29 30 /* DC core (private) */ 31 #include "core_types.h" 32 #include "transform.h" 33 34 /******************************************************************************* 35 * Private functions 36 ******************************************************************************/ 37 static bool construct(struct dc_context *ctx, struct dc_plane_state *plane_state) 38 { 39 plane_state->ctx = ctx; 40 memset(&plane_state->hdr_static_ctx, 41 0, sizeof(struct dc_hdr_static_metadata)); 42 return true; 43 } 44 45 static void destruct(struct dc_plane_state *plane_state) 46 { 47 if (plane_state->gamma_correction != NULL) { 48 dc_gamma_release(&plane_state->gamma_correction); 49 } 50 if (plane_state->in_transfer_func != NULL) { 51 dc_transfer_func_release( 52 plane_state->in_transfer_func); 53 plane_state->in_transfer_func = NULL; 54 } 55 } 56 57 /******************************************************************************* 58 * Public functions 59 ******************************************************************************/ 60 void enable_surface_flip_reporting(struct dc_plane_state *plane_state, 61 uint32_t controller_id) 62 { 63 plane_state->irq_source = controller_id + DC_IRQ_SOURCE_PFLIP1 - 1; 64 /*register_flip_interrupt(surface);*/ 65 } 66 67 struct dc_plane_state *dc_create_plane_state(struct dc *dc) 68 { 69 struct dc *core_dc = dc; 70 71 struct dc_plane_state *plane_state = dm_alloc(sizeof(*plane_state)); 72 73 if (NULL == plane_state) 74 goto alloc_fail; 75 76 if (false == construct(core_dc->ctx, plane_state)) 77 goto construct_fail; 78 79 atomic_inc(&plane_state->ref_count); 80 81 return plane_state; 82 83 construct_fail: 84 dm_free(plane_state); 85 86 alloc_fail: 87 return NULL; 88 } 89 90 const struct dc_plane_status *dc_plane_get_status( 91 const struct dc_plane_state *plane_state) 92 { 93 const struct dc_plane_status *plane_status; 94 struct dc *core_dc; 95 int i; 96 97 if (!plane_state || 98 !plane_state->ctx || 99 !plane_state->ctx->dc) { 100 ASSERT(0); 101 return NULL; /* remove this if above assert never hit */ 102 } 103 104 plane_status = &plane_state->status; 105 core_dc = plane_state->ctx->dc; 106 107 if (core_dc->current_state == NULL) 108 return NULL; 109 110 for (i = 0; i < core_dc->res_pool->pipe_count; i++) { 111 struct pipe_ctx *pipe_ctx = 112 &core_dc->current_state->res_ctx.pipe_ctx[i]; 113 114 if (pipe_ctx->plane_state != plane_state) 115 continue; 116 117 core_dc->hwss.update_pending_status(pipe_ctx); 118 } 119 120 return plane_status; 121 } 122 123 void dc_plane_state_retain(struct dc_plane_state *plane_state) 124 { 125 ASSERT(atomic_read(&plane_state->ref_count) > 0); 126 atomic_inc(&plane_state->ref_count); 127 } 128 129 void dc_plane_state_release(struct dc_plane_state *plane_state) 130 { 131 ASSERT(atomic_read(&plane_state->ref_count) > 0); 132 atomic_dec(&plane_state->ref_count); 133 134 if (atomic_read(&plane_state->ref_count) == 0) { 135 destruct(plane_state); 136 dm_free(plane_state); 137 } 138 } 139 140 void dc_gamma_retain(struct dc_gamma *gamma) 141 { 142 ASSERT(atomic_read(&gamma->ref_count) > 0); 143 atomic_inc(&gamma->ref_count); 144 } 145 146 void dc_gamma_release(struct dc_gamma **gamma) 147 { 148 ASSERT(atomic_read(&(*gamma)->ref_count) > 0); 149 atomic_dec(&(*gamma)->ref_count); 150 151 if (atomic_read(&(*gamma)->ref_count) == 0) 152 dm_free((*gamma)); 153 154 *gamma = NULL; 155 } 156 157 struct dc_gamma *dc_create_gamma() 158 { 159 struct dc_gamma *gamma = dm_alloc(sizeof(*gamma)); 160 161 if (gamma == NULL) 162 goto alloc_fail; 163 164 atomic_inc(&gamma->ref_count); 165 166 return gamma; 167 168 alloc_fail: 169 return NULL; 170 } 171 172 void dc_transfer_func_retain(struct dc_transfer_func *tf) 173 { 174 ASSERT(atomic_read(&tf->ref_count) > 0); 175 atomic_inc(&tf->ref_count); 176 } 177 178 void dc_transfer_func_release(struct dc_transfer_func *tf) 179 { 180 ASSERT(atomic_read(&tf->ref_count) > 0); 181 atomic_dec(&tf->ref_count); 182 183 if (atomic_read(&tf->ref_count) == 0) 184 dm_free(tf); 185 } 186 187 struct dc_transfer_func *dc_create_transfer_func() 188 { 189 struct dc_transfer_func *tf = dm_alloc(sizeof(*tf)); 190 191 if (tf == NULL) 192 goto alloc_fail; 193 194 atomic_inc(&tf->ref_count); 195 196 return tf; 197 198 alloc_fail: 199 return NULL; 200 } 201 202 203