virgl_winsys.h revision 7ec681f3 
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 "virtio-gpu/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#define VIRGL_MAX_PLANE_COUNT 3
37
38struct virgl_drm_caps {
39   union virgl_caps caps;
40};
41
42struct virgl_cmd_buf {
43   unsigned cdw;
44   uint32_t *buf;
45};
46
47struct virgl_winsys {
48   unsigned pci_id;
49   int supports_fences; /* In/Out fences are supported */
50   int supports_encoded_transfers; /* Encoded transfers are supported */
51   int supports_coherent;          /* Coherent memory is supported */
52
53   void (*destroy)(struct virgl_winsys *vws);
54
55   int (*transfer_put)(struct virgl_winsys *vws,
56                       struct virgl_hw_res *res,
57                       const struct pipe_box *box,
58                       uint32_t stride, uint32_t layer_stride,
59                       uint32_t buf_offset, uint32_t level);
60
61   int (*transfer_get)(struct virgl_winsys *vws,
62                       struct virgl_hw_res *res,
63                       const struct pipe_box *box,
64                       uint32_t stride, uint32_t layer_stride,
65                       uint32_t buf_offset, uint32_t level);
66
67   struct virgl_hw_res *(*resource_create)(struct virgl_winsys *vws,
68                               enum pipe_texture_target target,
69                               uint32_t format, uint32_t bind,
70                               uint32_t width, uint32_t height,
71                               uint32_t depth, uint32_t array_size,
72                               uint32_t last_level, uint32_t nr_samples,
73                               uint32_t flags, uint32_t size);
74
75   void (*resource_reference)(struct virgl_winsys *qws,
76                              struct virgl_hw_res **dres,
77                              struct virgl_hw_res *sres);
78
79   void *(*resource_map)(struct virgl_winsys *vws, struct virgl_hw_res *res);
80   void (*resource_wait)(struct virgl_winsys *vws, struct virgl_hw_res *res);
81   boolean (*resource_is_busy)(struct virgl_winsys *vws,
82                               struct virgl_hw_res *res);
83
84   struct virgl_hw_res *(*resource_create_from_handle)(struct virgl_winsys *vws,
85                                                       struct winsys_handle *whandle,
86                                                       uint32_t *plane,
87                                                       uint32_t *stride,
88                                                       uint32_t *plane_offset,
89                                                       uint64_t *modifier,
90                                                       uint32_t *blob_mem);
91   void (*resource_set_type)(struct virgl_winsys *vws,
92                             struct virgl_hw_res *res,
93                             uint32_t format, uint32_t bind,
94                             uint32_t width, uint32_t height,
95                             uint32_t usage, uint64_t modifier,
96                             uint32_t plane_count,
97                             const uint32_t *plane_strides,
98                             const uint32_t *plane_offsets);
99
100   boolean (*resource_get_handle)(struct virgl_winsys *vws,
101                                  struct virgl_hw_res *res,
102                                  uint32_t stride,
103                                  struct winsys_handle *whandle);
104
105   struct virgl_cmd_buf *(*cmd_buf_create)(struct virgl_winsys *ws, uint32_t size);
106   void (*cmd_buf_destroy)(struct virgl_cmd_buf *buf);
107
108   void (*emit_res)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, struct virgl_hw_res *res, boolean write_buffer);
109   int (*submit_cmd)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf,
110                     struct pipe_fence_handle **fence);
111
112   boolean (*res_is_referenced)(struct virgl_winsys *vws,
113                                struct virgl_cmd_buf *buf,
114                                struct virgl_hw_res *res);
115
116   int (*get_caps)(struct virgl_winsys *vws, struct virgl_drm_caps *caps);
117
118   /* fence */
119   struct pipe_fence_handle *(*cs_create_fence)(struct virgl_winsys *vws, int fd);
120   bool (*fence_wait)(struct virgl_winsys *vws,
121                      struct pipe_fence_handle *fence,
122                      uint64_t timeout);
123
124   void (*fence_reference)(struct virgl_winsys *vws,
125                           struct pipe_fence_handle **dst,
126                           struct pipe_fence_handle *src);
127
128   /* for sw paths */
129   void (*flush_frontbuffer)(struct virgl_winsys *vws,
130                             struct virgl_hw_res *res,
131                             unsigned level, unsigned layer,
132                             void *winsys_drawable_handle,
133                             struct pipe_box *sub_box);
134   void (*fence_server_sync)(struct virgl_winsys *vws,
135                             struct virgl_cmd_buf *cbuf,
136                             struct pipe_fence_handle *fence);
137
138   int (*fence_get_fd)(struct virgl_winsys *vws,
139                       struct pipe_fence_handle *fence);
140};
141
142/* this defaults all newer caps,
143 * the kernel will overwrite these if newer version is available.
144 */
145static inline void virgl_ws_fill_new_caps_defaults(struct virgl_drm_caps *caps)
146{
147   caps->caps.v2.min_aliased_point_size = 1.f;
148   caps->caps.v2.max_aliased_point_size = 255.f;
149   caps->caps.v2.min_smooth_point_size = 1.f;
150   caps->caps.v2.max_smooth_point_size = 190.f;
151   caps->caps.v2.min_aliased_line_width = 1.f;
152   caps->caps.v2.max_aliased_line_width = 10.f;
153   caps->caps.v2.min_smooth_line_width = 0.f;
154   caps->caps.v2.max_smooth_line_width = 10.f;
155   caps->caps.v2.max_texture_lod_bias = 15.0f;
156   caps->caps.v2.max_geom_output_vertices = 256;
157   caps->caps.v2.max_geom_total_output_components = 1024;
158   caps->caps.v2.max_vertex_outputs = 32;
159   caps->caps.v2.max_vertex_attribs = 16;
160   caps->caps.v2.max_shader_patch_varyings = 30;
161   caps->caps.v2.min_texel_offset = -8;
162   caps->caps.v2.max_texel_offset = 7;
163   caps->caps.v2.min_texture_gather_offset = -8;
164   caps->caps.v2.max_texture_gather_offset = 7;
165   caps->caps.v2.texture_buffer_offset_alignment = 0;
166   caps->caps.v2.uniform_buffer_offset_alignment = 256;
167   caps->caps.v2.shader_buffer_offset_alignment = 32;
168   caps->caps.v2.capability_bits = 0;
169   caps->caps.v2.max_vertex_attrib_stride = 0;
170   caps->caps.v2.max_image_samples = 0;
171   caps->caps.v2.max_compute_work_group_invocations = 0;
172   caps->caps.v2.max_compute_shared_memory_size = 0;
173   caps->caps.v2.host_feature_check_version = 0;
174}
175
176extern enum virgl_formats pipe_to_virgl_format(enum pipe_format format);
177
178#endif
179