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 
29 struct pipe_box;
30 struct pipe_fence_handle;
31 struct winsys_handle;
32 struct virgl_hw_res;
33 
34 #define VIRGL_MAX_TBUF_DWORDS 1024
35 #define VIRGL_MAX_CMDBUF_DWORDS ((64 * 1024) + VIRGL_MAX_TBUF_DWORDS)
36 
37 struct virgl_drm_caps {
38    union virgl_caps caps;
39 };
40 
41 struct virgl_cmd_buf {
42    unsigned cdw;
43    uint32_t *buf;
44 };
45 
46 struct 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    int supports_coherent;          /* Coherent memory is supported */
51 
52    void (*destroy)(struct virgl_winsys *vws);
53 
54    int (*transfer_put)(struct virgl_winsys *vws,
55                        struct virgl_hw_res *res,
56                        const struct pipe_box *box,
57                        uint32_t stride, uint32_t layer_stride,
58                        uint32_t buf_offset, uint32_t level);
59 
60    int (*transfer_get)(struct virgl_winsys *vws,
61                        struct virgl_hw_res *res,
62                        const struct pipe_box *box,
63                        uint32_t stride, uint32_t layer_stride,
64                        uint32_t buf_offset, uint32_t level);
65 
66    struct virgl_hw_res *(*resource_create)(struct virgl_winsys *vws,
67                                enum pipe_texture_target target,
68                                uint32_t format, uint32_t bind,
69                                uint32_t width, uint32_t height,
70                                uint32_t depth, uint32_t array_size,
71                                uint32_t last_level, uint32_t nr_samples,
72                                uint32_t flags, uint32_t size);
73 
74    void (*resource_reference)(struct virgl_winsys *qws,
75                               struct virgl_hw_res **dres,
76                               struct virgl_hw_res *sres);
77 
78    void *(*resource_map)(struct virgl_winsys *vws, struct virgl_hw_res *res);
79    void (*resource_wait)(struct virgl_winsys *vws, struct virgl_hw_res *res);
80    boolean (*resource_is_busy)(struct virgl_winsys *vws,
81                                struct virgl_hw_res *res);
82 
83    struct virgl_hw_res *(*resource_create_from_handle)(struct virgl_winsys *vws,
84                                                        struct winsys_handle *whandle,
85                                                        uint32_t *plane,
86                                                        uint32_t *stride,
87                                                        uint32_t *plane_offset,
88                                                        uint64_t *modifier,
89                                                        uint32_t *blob_mem);
90    boolean (*resource_get_handle)(struct virgl_winsys *vws,
91                                   struct virgl_hw_res *res,
92                                   uint32_t stride,
93                                   struct winsys_handle *whandle);
94 
95    struct virgl_cmd_buf *(*cmd_buf_create)(struct virgl_winsys *ws, uint32_t size);
96    void (*cmd_buf_destroy)(struct virgl_cmd_buf *buf);
97 
98    void (*emit_res)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf, struct virgl_hw_res *res, boolean write_buffer);
99    int (*submit_cmd)(struct virgl_winsys *vws, struct virgl_cmd_buf *buf,
100                      struct pipe_fence_handle **fence);
101 
102    boolean (*res_is_referenced)(struct virgl_winsys *vws,
103                                 struct virgl_cmd_buf *buf,
104                                 struct virgl_hw_res *res);
105 
106    int (*get_caps)(struct virgl_winsys *vws, struct virgl_drm_caps *caps);
107 
108    /* fence */
109    struct pipe_fence_handle *(*cs_create_fence)(struct virgl_winsys *vws, int fd);
110    bool (*fence_wait)(struct virgl_winsys *vws,
111                       struct pipe_fence_handle *fence,
112                       uint64_t timeout);
113 
114    void (*fence_reference)(struct virgl_winsys *vws,
115                            struct pipe_fence_handle **dst,
116                            struct pipe_fence_handle *src);
117 
118    /* for sw paths */
119    void (*flush_frontbuffer)(struct virgl_winsys *vws,
120                              struct virgl_hw_res *res,
121                              unsigned level, unsigned layer,
122                              void *winsys_drawable_handle,
123                              struct pipe_box *sub_box);
124    void (*fence_server_sync)(struct virgl_winsys *vws,
125                              struct virgl_cmd_buf *cbuf,
126                              struct pipe_fence_handle *fence);
127 
128    int (*fence_get_fd)(struct virgl_winsys *vws,
129                        struct pipe_fence_handle *fence);
130 };
131 
132 /* this defaults all newer caps,
133  * the kernel will overwrite these if newer version is available.
134  */
virgl_ws_fill_new_caps_defaults(struct virgl_drm_caps * caps)135 static inline void virgl_ws_fill_new_caps_defaults(struct virgl_drm_caps *caps)
136 {
137    caps->caps.v2.min_aliased_point_size = 1.f;
138    caps->caps.v2.max_aliased_point_size = 255.f;
139    caps->caps.v2.min_smooth_point_size = 1.f;
140    caps->caps.v2.max_smooth_point_size = 190.f;
141    caps->caps.v2.min_aliased_line_width = 1.f;
142    caps->caps.v2.max_aliased_line_width = 10.f;
143    caps->caps.v2.min_smooth_line_width = 0.f;
144    caps->caps.v2.max_smooth_line_width = 10.f;
145    caps->caps.v2.max_texture_lod_bias = 15.0f;
146    caps->caps.v2.max_geom_output_vertices = 256;
147    caps->caps.v2.max_geom_total_output_components = 1024;
148    caps->caps.v2.max_vertex_outputs = 32;
149    caps->caps.v2.max_vertex_attribs = 16;
150    caps->caps.v2.max_shader_patch_varyings = 30;
151    caps->caps.v2.min_texel_offset = -8;
152    caps->caps.v2.max_texel_offset = 7;
153    caps->caps.v2.min_texture_gather_offset = -8;
154    caps->caps.v2.max_texture_gather_offset = 7;
155    caps->caps.v2.texture_buffer_offset_alignment = 0;
156    caps->caps.v2.uniform_buffer_offset_alignment = 256;
157    caps->caps.v2.shader_buffer_offset_alignment = 32;
158    caps->caps.v2.capability_bits = 0;
159    caps->caps.v2.max_vertex_attrib_stride = 0;
160    caps->caps.v2.max_image_samples = 0;
161    caps->caps.v2.max_compute_work_group_invocations = 0;
162    caps->caps.v2.max_compute_shared_memory_size = 0;
163    caps->caps.v2.host_feature_check_version = 0;
164 }
165 
166 extern enum virgl_formats pipe_to_virgl_format(enum pipe_format format);
167 
168 #endif
169