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      1 /*
      2  *  Copyright2018-2019 Alyssa Rosenzweig
      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 FROM,
     20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     21  * SOFTWARE.
     22  *
     23  */
     24 
     25 
     26 #ifndef PAN_RESOURCE_H
     27 #define PAN_RESOURCE_H
     28 
     29 #include <panfrost-job.h>
     30 #include "pan_screen.h"
     31 #include "pan_allocate.h"
     32 #include "drm-uapi/drm.h"
     33 #include "util/u_range.h"
     34 
     35 /* Describes the memory layout of a BO */
     36 
     37 enum panfrost_memory_layout {
     38         PAN_LINEAR,
     39         PAN_TILED,
     40         PAN_AFBC
     41 };
     42 
     43 struct panfrost_slice {
     44         unsigned offset;
     45         unsigned stride;
     46 };
     47 
     48 struct panfrost_bo {
     49         struct pipe_reference reference;
     50 
     51         /* Description of the mip levels */
     52         struct panfrost_slice slices[MAX_MIP_LEVELS];
     53 
     54         /* Mapping for the entire object (all levels) */
     55         uint8_t *cpu;
     56 
     57         /* GPU address for the object */
     58         mali_ptr gpu;
     59 
     60         /* Size of all entire trees */
     61         size_t size;
     62 
     63         /* Distance from tree to tree */
     64         unsigned cubemap_stride;
     65 
     66         /* Set if this bo was imported rather than allocated */
     67         bool imported;
     68 
     69         /* Internal layout (tiled?) */
     70         enum panfrost_memory_layout layout;
     71 
     72         /* If AFBC is enabled for this resource, we lug around an AFBC
     73          * metadata buffer as well. The actual AFBC resource is also in
     74          * afbc_slab (only defined for AFBC) at position afbc_main_offset
     75          */
     76 
     77         struct panfrost_memory afbc_slab;
     78         int afbc_metadata_size;
     79 
     80         /* If transaciton elimination is enabled, we have a dedicated
     81          * buffer for that as well. */
     82 
     83         bool has_checksum;
     84         struct panfrost_memory checksum_slab;
     85         int checksum_stride;
     86 
     87         int gem_handle;
     88 };
     89 
     90 void
     91 panfrost_bo_reference(struct panfrost_bo *bo);
     92 
     93 void
     94 panfrost_bo_unreference(struct pipe_screen *screen, struct panfrost_bo *bo);
     95 
     96 struct panfrost_resource {
     97         struct pipe_resource base;
     98 
     99         struct panfrost_bo *bo;
    100         struct renderonly_scanout *scanout;
    101 
    102         struct panfrost_resource *separate_stencil;
    103 
    104         struct util_range valid_buffer_range;
    105 };
    106 
    107 static inline struct panfrost_resource *
    108 pan_resource(struct pipe_resource *p)
    109 {
    110    return (struct panfrost_resource *)p;
    111 }
    112 
    113 struct panfrost_gtransfer {
    114         struct pipe_transfer base;
    115         void *map;
    116 };
    117 
    118 static inline struct panfrost_gtransfer *
    119 pan_transfer(struct pipe_transfer *p)
    120 {
    121    return (struct panfrost_gtransfer *)p;
    122 }
    123 
    124 void panfrost_resource_screen_init(struct panfrost_screen *screen);
    125 
    126 void panfrost_resource_context_init(struct pipe_context *pctx);
    127 
    128 #endif /* PAN_RESOURCE_H */
    129