drivers/gpu/drm/amd/display/dc/core/dc_surface.c

   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_dc.h"
  32 #include "transform.h"
  33
  34 /*******************************************************************************
  35  * Private structures
  36  ******************************************************************************/
  37 struct surface {
  38         struct core_surface protected;
  39         enum dc_irq_source irq_source;
  40         int ref_count;
  41 };
  42
  43 struct gamma {
  44         struct core_gamma protected;
  45         int ref_count;
  46 };
  47
  48 #define DC_SURFACE_TO_SURFACE(dc_surface) container_of(dc_surface, struct surface, protected.public)
  49 #define CORE_SURFACE_TO_SURFACE(core_surface) container_of(core_surface, struct surface, protected)
  50
  51 #define DC_GAMMA_TO_GAMMA(dc_gamma) \
  52         container_of(dc_gamma, struct gamma, protected.public)
  53 #define CORE_GAMMA_TO_GAMMA(core_gamma) \
  54         container_of(core_gamma, struct gamma, protected)
  55
  56 /*******************************************************************************
  57  * Private functions
  58  ******************************************************************************/
  59 static bool construct(struct dc_context *ctx, struct surface *surface)
  60 {
  61         surface->protected.ctx = ctx;
  62         return true;
  63 }
  64
  65 static void destruct(struct surface *surface)
  66 {
  67
  68 }
  69
  70 /*******************************************************************************
  71  * Public functions
  72  ******************************************************************************/
  73 void enable_surface_flip_reporting(struct dc_surface *dc_surface,
  74                 uint32_t controller_id)
  75 {
  76         struct surface *surface = DC_SURFACE_TO_SURFACE(dc_surface);
  77         surface->irq_source = controller_id + DC_IRQ_SOURCE_PFLIP1 - 1;
  78         /*register_flip_interrupt(surface);*/
  79 }
  80
  81 struct dc_surface *dc_create_surface(const struct dc *dc)
  82 {
  83         struct core_dc *core_dc = DC_TO_CORE(dc);
  84
  85         struct surface *surface = dm_alloc(sizeof(*surface));
  86
  87         if (NULL == surface)
  88                 goto alloc_fail;
  89
  90         if (false == construct(core_dc->ctx, surface))
  91                 goto construct_fail;
  92
  93         dc_surface_retain(&surface->protected.public);
  94
  95         return &surface->protected.public;
  96
  97 construct_fail:
  98         dm_free(surface);
  99
 100 alloc_fail:
 101         return NULL;
 102 }
 103
 104 const struct dc_surface_status *dc_surface_get_status(
 105                 const struct dc_surface *dc_surface)
 106 {
 107         struct dc_surface_status *surface_status;
 108         struct core_surface *core_surface;
 109         struct core_dc *core_dc;
 110         int i;
 111
 112         if (dc_surface == NULL)
 113                 return NULL;
 114
 115         core_surface = DC_SURFACE_TO_CORE(dc_surface);
 116
 117         if (core_surface == NULL || core_surface->ctx == NULL)
 118                 return NULL;
 119
 120         surface_status = &core_surface->status;
 121
 122         if (core_surface->ctx == NULL || core_surface->ctx->dc == NULL)
 123                 return NULL;
 124
 125         core_dc = DC_TO_CORE(core_surface->ctx->dc);
 126
 127
 128         if (core_dc->current_context == NULL)
 129                 return NULL;
 130
 131         for (i = 0; i < core_dc->current_context->res_ctx.pool->pipe_count;
 132                         i++) {
 133                 struct pipe_ctx *pipe_ctx =
 134                                 &core_dc->current_context->res_ctx.pipe_ctx[i];
 135
 136                 if (pipe_ctx->surface !=
 137                                 DC_SURFACE_TO_CORE(dc_surface))
 138                         continue;
 139
 140                 core_dc->hwss.update_pending_status(pipe_ctx);
 141         }
 142
 143         return surface_status;
 144 }
 145
 146 void dc_surface_retain(const struct dc_surface *dc_surface)
 147 {
 148         struct surface *surface = DC_SURFACE_TO_SURFACE(dc_surface);
 149
 150         ++surface->ref_count;
 151 }
 152
 153 void dc_surface_release(const struct dc_surface *dc_surface)
 154 {
 155         struct surface *surface = DC_SURFACE_TO_SURFACE(dc_surface);
 156
 157         --surface->ref_count;
 158
 159         if (surface->ref_count == 0) {
 160                 destruct(surface);
 161                 dm_free(surface);
 162         }
 163 }
 164
 165 static bool construct_gamma(struct gamma *gamma)
 166 {
 167         return true;
 168 }
 169
 170 static void destruct_gamma(struct gamma *gamma)
 171 {
 172
 173 }
 174
 175 void dc_gamma_retain(const struct dc_gamma *dc_gamma)
 176 {
 177         struct gamma *gamma = DC_GAMMA_TO_GAMMA(dc_gamma);
 178
 179         ++gamma->ref_count;
 180 }
 181
 182 void dc_gamma_release(const struct dc_gamma *dc_gamma)
 183 {
 184         struct gamma *gamma = DC_GAMMA_TO_GAMMA(dc_gamma);
 185         --gamma->ref_count;
 186
 187         if (gamma->ref_count == 0) {
 188                 destruct_gamma(gamma);
 189                 dm_free(gamma);
 190         }
 191 }
 192
 193 struct dc_gamma *dc_create_gamma()
 194 {
 195         struct gamma *gamma = dm_alloc(sizeof(*gamma));
 196
 197         if (gamma == NULL)
 198                 goto alloc_fail;
 199
 200         if (false == construct_gamma(gamma))
 201                 goto construct_fail;
 202
 203         dc_gamma_retain(&gamma->protected.public);
 204
 205         return &gamma->protected.public;
 206
 207 construct_fail:
 208         dm_free(gamma);
 209
 210 alloc_fail:
 211         return NULL;
 212 }
 213