1/*
2 * Copyright 2014, 2015 Red Hat.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23#ifndef VIRGL_WINSYS_H
24#define VIRGL_WINSYS_H
25
26#include "pipe/p_defines.h"
27#include "virgl_hw.h"
28
29struct pipe_box;
30struct pipe_fence_handle;
31struct winsys_handle;
32struct virgl_hw_res;
33
34#define VIRGL_MAX_TBUF_DWORDS 1024
35#define VIRGL_MAX_CMDBUF_DWORDS ((64 * 1024) + VIRGL_MAX_TBUF_DWORDS)
36
37struct virgl_drm_caps {
38   union virgl_caps caps;
39};
40
41struct virgl_cmd_buf {
42   unsigned cdw;
43   uint32_t *buf;
44};
45
46struct virgl_winsys {
47   unsigned pci_id;
48   int supports_fences; /* In/Out fences are supported */
49   int supports_encoded_transfers; /* Encoded transfers are supported */
50
51   void (*destroy)(struct virgl_winsys *vws);
52
53   int (*transfer_put)(struct virgl_winsys *vws,
54                       struct virgl_hw_res *res,
55                       const struct pipe_box *box,
56                       uint32_t stride, uint32_t layer_stride,
57                       uint32_t buf_offset, uint32_t level);
58
59   int (*transfer_get)(struct virgl_winsys *vws,
60                       struct virgl_hw_res *res,
61                       const struct pipe_box *box,
62                       uint32_t stride, uint32_t layer_stride,
63                       uint32_t buf_offset, uint32_t level);
64
65   struct virgl_hw_res *(*resource_create)(struct virgl_winsys *vws,
66                               enum pipe_texture_target target,
67                               uint32_t format, uint32_t bind,
68                               uint32_t width, uint32_t height,
69                               uint32_t depth, uint32_t array_size,
70                               uint32_t last_level, uint32_t nr_samples,
71                               uint32_t size);
72
73   void (*resource_unref)(struct virgl_winsys *vws, struct virgl_hw_res *res);
74
75   void *(*resource_map)(struct virgl_winsys *vws, struct virgl_hw_res *res);
76   void (*resource_wait)(struct virgl_winsys *vws, struct virgl_hw_res *res);
77
78   struct virgl_hw_res *(*resource_create_from_handle)(struct virgl_winsys *vws,
79                                                       struct winsys_handle *whandle);
80   boolean (*resource_get_handle)(struct virgl_winsys *vws,
81                                  struct virgl_hw_res *res,
82                                  uint32_t stride,
83                                  struct winsys_handle *whandle);
84
85   struct virgl_cmd_buf *(*cmd_buf_create)(struct virgl_winsys *ws, uint32_t size);
86   void (*cmd_buf_destroy)(struct virgl_cmd_buf *buf);
87
88   void (*emit_res)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, struct virgl_hw_res *res, boolean write_buffer);
89   int (*submit_cmd)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf,
90                     struct pipe_fence_handle **fence);
91
92   boolean (*res_is_referenced)(struct virgl_winsys *vws,
93                                struct virgl_cmd_buf *buf,
94                                struct virgl_hw_res *res);
95
96   int (*get_caps)(struct virgl_winsys *vws, struct virgl_drm_caps *caps);
97
98   /* fence */
99   struct pipe_fence_handle *(*cs_create_fence)(struct virgl_winsys *vws, int fd);
100   bool (*fence_wait)(struct virgl_winsys *vws,
101                      struct pipe_fence_handle *fence,
102                      uint64_t timeout);
103
104   void (*fence_reference)(struct virgl_winsys *vws,
105                           struct pipe_fence_handle **dst,
106                           struct pipe_fence_handle *src);
107
108   /* for sw paths */
109   void (*flush_frontbuffer)(struct virgl_winsys *vws,
110                             struct virgl_hw_res *res,
111                             unsigned level, unsigned layer,
112                             void *winsys_drawable_handle,
113                             struct pipe_box *sub_box);
114   void (*fence_server_sync)(struct virgl_winsys *vws,
115                             struct virgl_cmd_buf *cbuf,
116                             struct pipe_fence_handle *fence);
117
118   int (*fence_get_fd)(struct virgl_winsys *vws,
119                       struct pipe_fence_handle *fence);
120};
121
122/* this defaults all newer caps,
123 * the kernel will overwrite these if newer version is available.
124 */
125static inline void virgl_ws_fill_new_caps_defaults(struct virgl_drm_caps *caps)
126{
127   caps->caps.v2.min_aliased_point_size = 1.f;
128   caps->caps.v2.max_aliased_point_size = 255.f;
129   caps->caps.v2.min_smooth_point_size = 1.f;
130   caps->caps.v2.max_smooth_point_size = 190.f;
131   caps->caps.v2.min_aliased_line_width = 1.f;
132   caps->caps.v2.max_aliased_line_width = 10.f;
133   caps->caps.v2.min_smooth_line_width = 0.f;
134   caps->caps.v2.max_smooth_line_width = 10.f;
135   caps->caps.v2.max_texture_lod_bias = 15.0f;
136   caps->caps.v2.max_geom_output_vertices = 256;
137   caps->caps.v2.max_geom_total_output_components = 1024;
138   caps->caps.v2.max_vertex_outputs = 32;
139   caps->caps.v2.max_vertex_attribs = 16;
140   caps->caps.v2.max_shader_patch_varyings = 30;
141   caps->caps.v2.min_texel_offset = -8;
142   caps->caps.v2.max_texel_offset = 7;
143   caps->caps.v2.min_texture_gather_offset = -8;
144   caps->caps.v2.max_texture_gather_offset = 7;
145   caps->caps.v2.texture_buffer_offset_alignment = 0;
146   caps->caps.v2.uniform_buffer_offset_alignment = 256;
147   caps->caps.v2.shader_buffer_offset_alignment = 32;
148   caps->caps.v2.capability_bits = 0;
149   caps->caps.v2.max_vertex_attrib_stride = 0;
150   caps->caps.v2.max_image_samples = 0;
151   caps->caps.v2.max_compute_work_group_invocations = 0;
152   caps->caps.v2.max_compute_shared_memory_size = 0;
153   caps->caps.v2.host_feature_check_version = 0;
154}
155#endif
156