src/gallium/drivers/virgl/virgl_winsys.h

   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
  29 struct pipe_box;
  30 struct pipe_fence_handle;
  31 struct winsys_handle;
  32 struct virgl_hw_res;
  33
  34 #define VIRGL_MAX_CMDBUF_DWORDS (64 * 1024)
  35
  36 struct virgl_drm_caps {
  37    union virgl_caps caps;
  38 };
  39
  40 struct virgl_cmd_buf {
  41    unsigned cdw;
  42    uint32_t *buf;
  43    int in_fence_fd;
  44    bool needs_out_fence_fd;
  45 };
  46
  47 struct virgl_winsys {
  48    unsigned pci_id;
  49    int supports_fences; /* In/Out fences 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);
  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                      int32_t in_fence_fd, int32_t *out_fence_fd);
  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  */
 125 static 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 }
 154 #endif