1/*
2 * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
15 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
17 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
24 * of the Software.
25 */
26
27#ifndef RADEON_DRM_CS_H
28#define RADEON_DRM_CS_H
29
30#include "radeon_drm_bo.h"
31
32struct radeon_ctx {
33   struct radeon_drm_winsys *ws;
34   uint32_t gpu_reset_counter;
35};
36
37struct radeon_bo_item {
38   struct radeon_bo    *bo;
39   union {
40      struct {
41         uint32_t    priority_usage;
42      } real;
43      struct {
44         unsigned    real_idx;
45      } slab;
46   } u;
47};
48
49struct radeon_cs_context {
50   uint32_t                    buf[16 * 1024];
51
52   int                         fd;
53   struct drm_radeon_cs        cs;
54   struct drm_radeon_cs_chunk  chunks[3];
55   uint64_t                    chunk_array[3];
56   uint32_t                    flags[2];
57
58   /* Buffers. */
59   unsigned                    max_relocs;
60   unsigned                    num_relocs;
61   unsigned                    num_validated_relocs;
62   struct radeon_bo_item       *relocs_bo;
63   struct drm_radeon_cs_reloc  *relocs;
64
65   unsigned                    num_slab_buffers;
66   unsigned                    max_slab_buffers;
67   struct radeon_bo_item       *slab_buffers;
68
69   int                         reloc_indices_hashlist[4096];
70};
71
72struct radeon_drm_cs {
73   enum ring_type          ring_type;
74
75   /* We flip between these two CS. While one is being consumed
76    * by the kernel in another thread, the other one is being filled
77    * by the pipe driver. */
78   struct radeon_cs_context csc1;
79   struct radeon_cs_context csc2;
80   /* The currently-used CS. */
81   struct radeon_cs_context *csc;
82   /* The CS being currently-owned by the other thread. */
83   struct radeon_cs_context *cst;
84
85   /* The winsys. */
86   struct radeon_drm_winsys *ws;
87
88   /* Flush CS. */
89   void (*flush_cs)(void *ctx, unsigned flags, struct pipe_fence_handle **fence);
90   void *flush_data;
91
92   struct util_queue_fence flush_completed;
93   struct pipe_fence_handle *next_fence;
94};
95
96int radeon_lookup_buffer(struct radeon_cs_context *csc, struct radeon_bo *bo);
97
98static inline struct radeon_drm_cs *
99radeon_drm_cs(struct radeon_cmdbuf *rcs)
100{
101   return (struct radeon_drm_cs*)rcs->priv;
102}
103
104static inline bool
105radeon_bo_is_referenced_by_cs(struct radeon_drm_cs *cs,
106                              struct radeon_bo *bo)
107{
108   int num_refs = bo->num_cs_references;
109   return num_refs == bo->rws->num_cs ||
110         (num_refs && radeon_lookup_buffer(cs->csc, bo) != -1);
111}
112
113static inline bool
114radeon_bo_is_referenced_by_cs_for_write(struct radeon_drm_cs *cs,
115                                        struct radeon_bo *bo)
116{
117   int index;
118
119   if (!bo->num_cs_references)
120      return false;
121
122   index = radeon_lookup_buffer(cs->csc, bo);
123   if (index == -1)
124      return false;
125
126   if (!bo->handle)
127      index = cs->csc->slab_buffers[index].u.slab.real_idx;
128
129   return cs->csc->relocs[index].write_domain != 0;
130}
131
132static inline bool
133radeon_bo_is_referenced_by_any_cs(struct radeon_bo *bo)
134{
135   return bo->num_cs_references != 0;
136}
137
138void radeon_drm_cs_sync_flush(struct radeon_cmdbuf *rcs);
139void radeon_drm_cs_init_functions(struct radeon_drm_winsys *ws);
140void radeon_drm_cs_emit_ioctl_oneshot(void *job, void *gdata, int thread_index);
141
142#endif
143