1 /************************************************************************** 2 * 3 * Copyright (C) 2019 Chromium. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included 13 * in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 **************************************************************************/ 24 25 #ifndef VIRGL_GBM_H 26 #define VIRGL_GBM_H 27 28 #include "vrend_iov.h" 29 #include "virglrenderer.h" 30 31 #ifdef GBM_MAX_PLANES 32 #define VIRGL_GBM_MAX_PLANES GBM_MAX_PLANES 33 #else 34 #define VIRGL_GBM_MAX_PLANES 4 35 #endif 36 37 /* GBM_FORMAT_ABGR16161616F was added since mesa 20.0 */ 38 #ifndef GBM_FORMAT_ABGR16161616F 39 #define GBM_FORMAT_ABGR16161616F __gbm_fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */ 40 #endif 41 42 #ifndef MINIGBM 43 44 #define GBM_BO_USE_TEXTURING (1 << 5) 45 #define GBM_BO_USE_CAMERA_WRITE (1 << 6) 46 #define GBM_BO_USE_CAMERA_READ (1 << 7) 47 #define GBM_BO_USE_PROTECTED (1 << 8) 48 #define GBM_BO_USE_SW_READ_OFTEN (1 << 9) 49 #define GBM_BO_USE_SW_READ_RARELY (1 << 10) 50 #define GBM_BO_USE_SW_WRITE_OFTEN (1 << 11) 51 #define GBM_BO_USE_SW_WRITE_RARELY (1 << 12) 52 #define GBM_BO_USE_HW_VIDEO_DECODER (1 << 13) 53 #define GBM_BO_USE_HW_VIDEO_ENCODER (1 << 14) 54 #define GBM_TEST_ALLOC (1 << 15) 55 56 #endif 57 58 #ifdef ENABLE_MINIGBM_ALLOCATION 59 60 #define GBM_DEV_TYPE_FLAG_DISCRETE (1u << 0) /* Discrete GPU. Separate chip, dedicated VRAM. */ 61 #define GBM_DEV_TYPE_FLAG_DISPLAY (1u << 1) /* Device capable of display. */ 62 #define GBM_DEV_TYPE_FLAG_3D (1u << 2) /* Device capable or 3D rendering. */ 63 #define GBM_DEV_TYPE_FLAG_ARMSOC (1u << 3) /* Device on ARM SOC. */ 64 #define GBM_DEV_TYPE_FLAG_USB (1u << 4) /* USB device, udl, evdi. */ 65 #define GBM_DEV_TYPE_FLAG_BLOCKED (1u << 5) /* Unsuitable device e.g. vgem, udl, evdi. */ 66 #define GBM_DEV_TYPE_FLAG_INTERNAL_LCD (1u << 6) /* Device is driving internal LCD. */ 67 68 struct gbm_device_info { 69 uint32_t dev_type_flags; 70 int dri_node_num; /* DRI node number (0..63), for easy matching of devices. */ 71 unsigned int connectors; 72 unsigned int connected; 73 }; 74 75 #define GBM_DETECT_FLAG_CONNECTED (1u << 0) /* Check if any connectors are connected. SLOW! */ 76 77 #ifdef MINIGBM 78 int gbm_detect_device_info(unsigned int detect_flags, int fd, struct gbm_device_info *info); 79 int gbm_detect_device_info_path(unsigned int detect_flags, const char *dev_node, 80 struct gbm_device_info *info); 81 82 /* 83 * Select "default" device to use for graphics memory allocator. 84 */ 85 int gbm_get_default_device_fd(void); 86 #else 87 #define gbm_detect_device_info(detect_flags, fd, info) -1 88 #define gbm_detect_device_info_path(detect_flags, dev_node, info) -1 89 #define gbm_get_default_device_fd() -1 90 #endif /* MINIGBM */ 91 #endif /* ENABLE_MINIGBM_ALLOCATION */ 92 93 /* 94 * If fd >= 0, virglrenderer owns the fd since it was opened via a rendernode 95 * query. If fd < 0, the gbm device was opened with the fd provided by the 96 * (*get_drm_fd) hook. 97 */ 98 99 struct gbm_device; 100 struct gbm_bo; 101 102 struct virgl_gbm { 103 int fd; 104 struct gbm_device *device; 105 }; 106 107 struct virgl_gbm *virgl_gbm_init(int fd); 108 109 void virgl_gbm_fini(struct virgl_gbm *gbm); 110 111 int virgl_gbm_convert_format(uint32_t *virgl_format, uint32_t *gbm_format); 112 113 int virgl_gbm_transfer(struct gbm_bo *bo, uint32_t direction, const struct iovec *iovecs, 114 uint32_t num_iovecs, const struct vrend_transfer_info *info); 115 116 uint32_t virgl_gbm_convert_flags(uint32_t virgl_bind_flags); 117 118 int virgl_gbm_export_fd(struct gbm_device *gbm, uint32_t handle, int32_t *out_fd); 119 120 int virgl_gbm_export_query(struct gbm_bo *bo, struct virgl_renderer_export_query *query); 121 122 int virgl_gbm_get_plane_width(struct gbm_bo *bo, int plane); 123 int virgl_gbm_get_plane_height(struct gbm_bo *bo, int plane); 124 int virgl_gbm_get_plane_bytes_per_pixel(struct gbm_bo *bo, int plane); 125 126 bool virgl_gbm_external_allocation_preferred(uint32_t flags); 127 bool virgl_gbm_gpu_import_required(uint32_t flags); 128 129 #endif 130