freedreno/msm/msm_priv.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #ifndef MSM_PRIV_H_
  30 #define MSM_PRIV_H_
  31
  32 #include "freedreno_priv.h"
  33
  34 #ifndef __user
  35 #  define __user
  36 #endif
  37
  38 #include "msm_drm.h"
  39
  40 struct msm_device {
  41         struct fd_device base;
  42         struct fd_bo_cache ring_cache;
  43         unsigned ring_cnt;
  44 };
  45
  46 static inline struct msm_device * to_msm_device(struct fd_device *x)
  47 {
  48         return (struct msm_device *)x;
  49 }
  50
  51 drm_private struct fd_device * msm_device_new(int fd);
  52
  53 struct msm_pipe {
  54         struct fd_pipe base;
  55         uint32_t pipe;
  56         uint32_t gpu_id;
  57         uint32_t gmem;
  58         uint32_t chip_id;
  59         uint32_t queue_id;
  60
  61         /* Allow for sub-allocation of stateobj ring buffers (ie. sharing
  62          * the same underlying bo)..
  63          *
  64          * This takes advantage of each context having it's own fd_pipe,
  65          * so we don't have to worry about access from multiple threads.
  66          *
  67          * We also rely on previous stateobj having been fully constructed
  68          * so we can reclaim extra space at it's end.
  69          */
  70         struct fd_ringbuffer *suballoc_ring;
  71 };
  72
  73 static inline struct msm_pipe * to_msm_pipe(struct fd_pipe *x)
  74 {
  75         return (struct msm_pipe *)x;
  76 }
  77
  78 drm_private struct fd_pipe * msm_pipe_new(struct fd_device *dev,
  79                 enum fd_pipe_id id, uint32_t prio);
  80
  81 drm_private struct fd_ringbuffer * msm_ringbuffer_new(struct fd_pipe *pipe,
  82                 uint32_t size, enum fd_ringbuffer_flags flags);
  83
  84 struct msm_bo {
  85         struct fd_bo base;
  86         uint64_t offset;
  87         uint64_t presumed;
  88         /* to avoid excess hashtable lookups, cache the ring this bo was
  89          * last emitted on (since that will probably also be the next ring
  90          * it is emitted on)
  91          */
  92         unsigned current_ring_seqno;
  93         uint32_t idx;
  94 };
  95
  96 static inline struct msm_bo * to_msm_bo(struct fd_bo *x)
  97 {
  98         return (struct msm_bo *)x;
  99 }
 100
 101 drm_private int msm_bo_new_handle(struct fd_device *dev,
 102                 uint32_t size, uint32_t flags, uint32_t *handle);
 103 drm_private struct fd_bo * msm_bo_from_handle(struct fd_device *dev,
 104                 uint32_t size, uint32_t handle);
 105
 106 static inline void get_abs_timeout(struct drm_msm_timespec *tv, uint64_t ns)
 107 {
 108         struct timespec t;
 109         uint32_t s = ns / 1000000000;
 110         clock_gettime(CLOCK_MONOTONIC, &t);
 111         tv->tv_sec = t.tv_sec + s;
 112         tv->tv_nsec = t.tv_nsec + ns - (s * 1000000000);
 113 }
 114
 115 /*
 116  * Stupid/simple growable array implementation:
 117  */
 118
 119 static inline void *
 120 grow(void *ptr, uint32_t nr, uint32_t *max, uint32_t sz)
 121 {
 122         if ((nr + 1) > *max) {
 123                 if ((*max * 2) < (nr + 1))
 124                         *max = nr + 5;
 125                 else
 126                         *max = *max * 2;
 127                 ptr = realloc(ptr, *max * sz);
 128         }
 129         return ptr;
 130 }
 131
 132 #define DECLARE_ARRAY(type, name) \
 133         unsigned nr_ ## name, max_ ## name; \
 134         type * name;
 135
 136 #define APPEND(x, name) ({ \
 137         (x)->name = grow((x)->name, (x)->nr_ ## name, &(x)->max_ ## name, sizeof((x)->name[0])); \
 138         (x)->nr_ ## name ++; \
 139 })
 140
 141 #endif /* MSM_PRIV_H_ */