/* * Copyright © 2008-2011 Kristian Høgsberg * Copyright © 2011 Intel Corporation * Copyright © 2017, 2018 Collabora, Ltd. * Copyright © 2017, 2018 General Electric Company * Copyright (c) 2018 DisplayLink (UK) Ltd. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "config.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef BUILD_DRM_GBM #include #endif #include #include #include #include #include "shared/helpers.h" #include "libinput-seat.h" #include "backend.h" #include "libweston-internal.h" #ifndef DRM_CLIENT_CAP_ASPECT_RATIO #define DRM_CLIENT_CAP_ASPECT_RATIO 4 #endif #ifndef GBM_BO_USE_CURSOR #define GBM_BO_USE_CURSOR GBM_BO_USE_CURSOR_64X64 #endif #ifndef GBM_BO_USE_LINEAR #define GBM_BO_USE_LINEAR (1 << 4) #endif /** * A small wrapper to print information into the 'drm-backend' debug scope. * * The following conventions are used to print variables: * * - fixed uint32_t values, including Weston object IDs such as weston_output * IDs, DRM object IDs such as CRTCs or properties, and GBM/DRM formats: * "%lu (0x%lx)" (unsigned long) value, (unsigned long) value * * - fixed uint64_t values, such as DRM property values (including object IDs * when used as a value): * "%llu (0x%llx)" (unsigned long long) value, (unsigned long long) value * * - non-fixed-width signed int: * "%d" value * * - non-fixed-width unsigned int: * "%u (0x%x)" value, value * * - non-fixed-width unsigned long: * "%lu (0x%lx)" value, value * * Either the integer or hexadecimal forms may be omitted if it is known that * one representation is not useful (e.g. width/height in hex are rarely what * you want). * * This is to avoid implicit widening or narrowing when we use fixed-size * types: uint32_t can be resolved by either unsigned int or unsigned long * on a 32-bit system but only unsigned int on a 64-bit system, with uint64_t * being unsigned long long on a 32-bit system and unsigned long on a 64-bit * system. To avoid confusing side effects, we explicitly cast to the widest * possible type and use a matching format specifier. */ #define drm_debug(b, ...) \ weston_log_scope_printf((b)->debug, __VA_ARGS__) #define MAX_CLONED_CONNECTORS 4 /** * aspect ratio info taken from the drmModeModeInfo flag bits 19-22, * which should be used to fill the aspect ratio field in weston_mode. */ #define DRM_MODE_FLAG_PIC_AR_BITS_POS 19 #ifndef DRM_MODE_FLAG_PIC_AR_MASK #define DRM_MODE_FLAG_PIC_AR_MASK (0xF << DRM_MODE_FLAG_PIC_AR_BITS_POS) #endif /** * Represents the values of an enum-type KMS property */ struct drm_property_enum_info { const char *name; /**< name as string (static, not freed) */ bool valid; /**< true if value is supported; ignore if false */ uint64_t value; /**< raw value */ }; /** * Holds information on a DRM property, including its ID and the enum * values it holds. * * DRM properties are allocated dynamically, and maintained as DRM objects * within the normal object ID space; they thus do not have a stable ID * to refer to. This includes enum values, which must be referred to by * integer values, but these are not stable. * * drm_property_info allows a cache to be maintained where Weston can use * enum values internally to refer to properties, with the mapping to DRM * ID values being maintained internally. */ struct drm_property_info { const char *name; /**< name as string (static, not freed) */ uint32_t prop_id; /**< KMS property object ID */ unsigned int num_enum_values; /**< number of enum values */ struct drm_property_enum_info *enum_values; /**< array of enum values */ }; /** * List of properties attached to DRM planes */ enum wdrm_plane_property { WDRM_PLANE_TYPE = 0, WDRM_PLANE_SRC_X, WDRM_PLANE_SRC_Y, WDRM_PLANE_SRC_W, WDRM_PLANE_SRC_H, WDRM_PLANE_CRTC_X, WDRM_PLANE_CRTC_Y, WDRM_PLANE_CRTC_W, WDRM_PLANE_CRTC_H, WDRM_PLANE_FB_ID, WDRM_PLANE_CRTC_ID, WDRM_PLANE_IN_FORMATS, WDRM_PLANE_IN_FENCE_FD, WDRM_PLANE_FB_DAMAGE_CLIPS, WDRM_PLANE__COUNT }; /** * Possible values for the WDRM_PLANE_TYPE property. */ enum wdrm_plane_type { WDRM_PLANE_TYPE_PRIMARY = 0, WDRM_PLANE_TYPE_CURSOR, WDRM_PLANE_TYPE_OVERLAY, WDRM_PLANE_TYPE__COUNT }; /** * List of properties attached to a DRM connector */ enum wdrm_connector_property { WDRM_CONNECTOR_EDID = 0, WDRM_CONNECTOR_DPMS, WDRM_CONNECTOR_CRTC_ID, WDRM_CONNECTOR_NON_DESKTOP, WDRM_CONNECTOR_CONTENT_PROTECTION, WDRM_CONNECTOR_HDCP_CONTENT_TYPE, WDRM_CONNECTOR__COUNT }; enum wdrm_content_protection_state { WDRM_CONTENT_PROTECTION_UNDESIRED = 0, WDRM_CONTENT_PROTECTION_DESIRED, WDRM_CONTENT_PROTECTION_ENABLED, WDRM_CONTENT_PROTECTION__COUNT }; enum wdrm_hdcp_content_type { WDRM_HDCP_CONTENT_TYPE0 = 0, WDRM_HDCP_CONTENT_TYPE1, WDRM_HDCP_CONTENT_TYPE__COUNT }; enum wdrm_dpms_state { WDRM_DPMS_STATE_OFF = 0, WDRM_DPMS_STATE_ON, WDRM_DPMS_STATE_STANDBY, /* unused */ WDRM_DPMS_STATE_SUSPEND, /* unused */ WDRM_DPMS_STATE__COUNT }; /** * List of properties attached to DRM CRTCs */ enum wdrm_crtc_property { WDRM_CRTC_MODE_ID = 0, WDRM_CRTC_ACTIVE, WDRM_CRTC__COUNT }; struct drm_backend { struct weston_backend base; struct weston_compositor *compositor; struct udev *udev; struct wl_event_source *drm_source; struct udev_monitor *udev_monitor; struct wl_event_source *udev_drm_source; struct { int id; int fd; char *filename; dev_t devnum; } drm; struct gbm_device *gbm; struct wl_listener session_listener; uint32_t gbm_format; /* we need these parameters in order to not fail drmModeAddFB2() * due to out of bounds dimensions, and then mistakenly set * sprites_are_broken: */ int min_width, max_width; int min_height, max_height; struct wl_list plane_list; int sprites_are_broken; int sprites_hidden; void *repaint_data; bool state_invalid; /* CRTC IDs not used by any enabled output. */ struct wl_array unused_crtcs; int cursors_are_broken; bool universal_planes; bool atomic_modeset; bool use_pixman; bool use_pixman_shadow; struct udev_input input; int32_t cursor_width; int32_t cursor_height; uint32_t pageflip_timeout; bool shutting_down; bool aspect_ratio_supported; bool fb_modifiers; struct weston_log_scope *debug; }; struct drm_mode { struct weston_mode base; drmModeModeInfo mode_info; uint32_t blob_id; }; enum drm_fb_type { BUFFER_INVALID = 0, /**< never used */ BUFFER_CLIENT, /**< directly sourced from client */ BUFFER_DMABUF, /**< imported from linux_dmabuf client */ BUFFER_PIXMAN_DUMB, /**< internal Pixman rendering */ BUFFER_GBM_SURFACE, /**< internal EGL rendering */ BUFFER_CURSOR, /**< internal cursor buffer */ }; struct drm_fb { enum drm_fb_type type; int refcnt; uint32_t fb_id, size; uint32_t handles[4]; uint32_t strides[4]; uint32_t offsets[4]; int num_planes; const struct pixel_format_info *format; uint64_t modifier; int width, height; int fd; struct weston_buffer_reference buffer_ref; struct weston_buffer_release_reference buffer_release_ref; /* Used by gbm fbs */ struct gbm_bo *bo; struct gbm_surface *gbm_surface; /* Used by dumb fbs */ void *map; }; struct drm_edid { char eisa_id[13]; char monitor_name[13]; char pnp_id[5]; char serial_number[13]; }; /** * Pending state holds one or more drm_output_state structures, collected from * performing repaint. This pending state is transient, and only lives between * beginning a repaint group and flushing the results: after flush, each * output state will complete and be retired separately. */ struct drm_pending_state { struct drm_backend *backend; struct wl_list output_list; }; /* * Output state holds the dynamic state for one Weston output, i.e. a KMS CRTC, * plus >= 1 each of encoder/connector/plane. Since everything but the planes * is currently statically assigned per-output, we mainly use this to track * plane state. * * pending_state is set when the output state is owned by a pending_state, * i.e. when it is being constructed and has not yet been applied. When the * output state has been applied, the owning pending_state is freed. */ struct drm_output_state { struct drm_pending_state *pending_state; struct drm_output *output; struct wl_list link; enum dpms_enum dpms; enum weston_hdcp_protection protection; struct wl_list plane_list; }; /** * Plane state holds the dynamic state for a plane: where it is positioned, * and which buffer it is currently displaying. * * The plane state is owned by an output state, except when setting an initial * state. See drm_output_state for notes on state object lifetime. */ struct drm_plane_state { struct drm_plane *plane; struct drm_output *output; struct drm_output_state *output_state; struct drm_fb *fb; struct weston_view *ev; /**< maintained for drm_assign_planes only */ int32_t src_x, src_y; uint32_t src_w, src_h; int32_t dest_x, dest_y; uint32_t dest_w, dest_h; bool complete; /* We don't own the fd, so we shouldn't close it */ int in_fence_fd; pixman_region32_t damage; /* damage to kernel */ struct wl_list link; /* drm_output_state::plane_list */ }; /** * A plane represents one buffer, positioned within a CRTC, and stacked * relative to other planes on the same CRTC. * * Each CRTC has a 'primary plane', which use used to display the classic * framebuffer contents, as accessed through the legacy drmModeSetCrtc * call (which combines setting the CRTC's actual physical mode, and the * properties of the primary plane). * * The cursor plane also has its own alternate legacy API. * * Other planes are used opportunistically to display content we do not * wish to blit into the primary plane. These non-primary/cursor planes * are referred to as 'sprites'. */ struct drm_plane { struct weston_plane base; struct drm_backend *backend; enum wdrm_plane_type type; uint32_t possible_crtcs; uint32_t plane_id; uint32_t count_formats; struct drm_property_info props[WDRM_PLANE__COUNT]; /* The last state submitted to the kernel for this plane. */ struct drm_plane_state *state_cur; struct wl_list link; struct { uint32_t format; uint32_t count_modifiers; uint64_t *modifiers; } formats[]; }; struct drm_head { struct weston_head base; struct drm_backend *backend; drmModeConnector *connector; uint32_t connector_id; struct drm_edid edid; /* Holds the properties for the connector */ struct drm_property_info props_conn[WDRM_CONNECTOR__COUNT]; struct backlight *backlight; drmModeModeInfo inherited_mode; /**< Original mode on the connector */ uint32_t inherited_crtc_id; /**< Original CRTC assignment */ }; struct drm_output { struct weston_output base; struct drm_backend *backend; uint32_t crtc_id; /* object ID to pass to DRM functions */ int pipe; /* index of CRTC in resource array / bitmasks */ /* Holds the properties for the CRTC */ struct drm_property_info props_crtc[WDRM_CRTC__COUNT]; int page_flip_pending; int atomic_complete_pending; int destroy_pending; int disable_pending; int dpms_off_pending; uint32_t gbm_cursor_handle[2]; struct drm_fb *gbm_cursor_fb[2]; struct drm_plane *cursor_plane; struct weston_view *cursor_view; int current_cursor; struct gbm_surface *gbm_surface; uint32_t gbm_format; uint32_t gbm_bo_flags; /* Plane being displayed directly on the CRTC */ struct drm_plane *scanout_plane; /* The last state submitted to the kernel for this CRTC. */ struct drm_output_state *state_cur; /* The previously-submitted state, where the hardware has not * yet acknowledged completion of state_cur. */ struct drm_output_state *state_last; struct drm_fb *dumb[2]; pixman_image_t *image[2]; int current_image; pixman_region32_t previous_damage; struct vaapi_recorder *recorder; struct wl_listener recorder_frame_listener; struct wl_event_source *pageflip_timer; bool virtual; submit_frame_cb virtual_submit_frame; }; static inline struct drm_head * to_drm_head(struct weston_head *base) { return container_of(base, struct drm_head, base); } static inline struct drm_output * to_drm_output(struct weston_output *base) { return container_of(base, struct drm_output, base); } static inline struct drm_backend * to_drm_backend(struct weston_compositor *base) { return container_of(base->backend, struct drm_backend, base); } static inline struct drm_mode * to_drm_mode(struct weston_mode *base) { return container_of(base, struct drm_mode, base); } struct drm_output * drm_output_find_by_crtc(struct drm_backend *b, uint32_t crtc_id); struct drm_head * drm_head_find_by_connector(struct drm_backend *backend, uint32_t connector_id); static inline bool drm_view_transform_supported(struct weston_view *ev, struct weston_output *output) { struct weston_buffer_viewport *viewport = &ev->surface->buffer_viewport; /* This will incorrectly disallow cases where the combination of * buffer and view transformations match the output transform. * Fixing this requires a full analysis of the transformation * chain. */ if (ev->transform.enabled && ev->transform.matrix.type >= WESTON_MATRIX_TRANSFORM_ROTATE) return false; if (viewport->buffer.transform != output->transform) return false; return true; } int drm_mode_ensure_blob(struct drm_backend *backend, struct drm_mode *mode); struct drm_mode * drm_output_choose_mode(struct drm_output *output, struct weston_mode *target_mode); void update_head_from_connector(struct drm_head *head, drmModeObjectProperties *props); void drm_mode_list_destroy(struct drm_backend *backend, struct wl_list *mode_list); void drm_output_print_modes(struct drm_output *output); int drm_output_set_mode(struct weston_output *base, enum weston_drm_backend_output_mode mode, const char *modeline); void drm_property_info_populate(struct drm_backend *b, const struct drm_property_info *src, struct drm_property_info *info, unsigned int num_infos, drmModeObjectProperties *props); uint64_t drm_property_get_value(struct drm_property_info *info, const drmModeObjectProperties *props, uint64_t def); int drm_plane_populate_formats(struct drm_plane *plane, const drmModePlane *kplane, const drmModeObjectProperties *props); void drm_property_info_free(struct drm_property_info *info, int num_props); extern struct drm_property_enum_info plane_type_enums[]; extern const struct drm_property_info plane_props[]; extern struct drm_property_enum_info dpms_state_enums[]; extern struct drm_property_enum_info content_protection_enums[]; extern struct drm_property_enum_info hdcp_content_type_enums[]; extern const struct drm_property_info connector_props[]; extern const struct drm_property_info crtc_props[]; int init_kms_caps(struct drm_backend *b); int drm_pending_state_test(struct drm_pending_state *pending_state); int drm_pending_state_apply(struct drm_pending_state *pending_state); int drm_pending_state_apply_sync(struct drm_pending_state *pending_state); void drm_output_set_gamma(struct weston_output *output_base, uint16_t size, uint16_t *r, uint16_t *g, uint16_t *b); void drm_output_update_msc(struct drm_output *output, unsigned int seq); void drm_output_update_complete(struct drm_output *output, uint32_t flags, unsigned int sec, unsigned int usec); int on_drm_input(int fd, uint32_t mask, void *data); struct drm_plane_state * drm_output_state_get_existing_plane(struct drm_output_state *state_output, struct drm_plane *plane); void drm_plane_state_free(struct drm_plane_state *state, bool force); void drm_output_state_free(struct drm_output_state *state); void drm_pending_state_free(struct drm_pending_state *pending_state); struct drm_fb * drm_fb_ref(struct drm_fb *fb); void drm_fb_unref(struct drm_fb *fb); struct drm_fb * drm_fb_create_dumb(struct drm_backend *b, int width, int height, uint32_t format); struct drm_fb * drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend, bool is_opaque, enum drm_fb_type type); #ifdef BUILD_DRM_GBM extern struct drm_fb * drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev); #else static inline struct drm_fb * drm_fb_get_from_view(struct drm_output_state *state, struct weston_view *ev) { return NULL; } #endif struct drm_pending_state * drm_pending_state_alloc(struct drm_backend *backend); void drm_pending_state_free(struct drm_pending_state *pending_state); struct drm_output_state * drm_pending_state_get_output(struct drm_pending_state *pending_state, struct drm_output *output); /** * Mode for drm_output_state_duplicate. */ enum drm_output_state_duplicate_mode { DRM_OUTPUT_STATE_CLEAR_PLANES, /**< reset all planes to off */ DRM_OUTPUT_STATE_PRESERVE_PLANES, /**< preserve plane state */ }; struct drm_output_state * drm_output_state_alloc(struct drm_output *output, struct drm_pending_state *pending_state); struct drm_output_state * drm_output_state_duplicate(struct drm_output_state *src, struct drm_pending_state *pending_state, enum drm_output_state_duplicate_mode plane_mode); void drm_output_state_free(struct drm_output_state *state); struct drm_plane_state * drm_output_state_get_plane(struct drm_output_state *state_output, struct drm_plane *plane); struct drm_plane_state * drm_output_state_get_existing_plane(struct drm_output_state *state_output, struct drm_plane *plane); struct drm_plane_state * drm_plane_state_alloc(struct drm_output_state *state_output, struct drm_plane *plane); struct drm_plane_state * drm_plane_state_duplicate(struct drm_output_state *state_output, struct drm_plane_state *src); void drm_plane_state_free(struct drm_plane_state *state, bool force); void drm_plane_state_put_back(struct drm_plane_state *state); bool drm_plane_state_coords_for_view(struct drm_plane_state *state, struct weston_view *ev); void drm_assign_planes(struct weston_output *output_base, void *repaint_data); bool drm_plane_is_available(struct drm_plane *plane, struct drm_output *output); void drm_output_render(struct drm_output_state *state, pixman_region32_t *damage); int parse_gbm_format(const char *s, uint32_t default_value, uint32_t *gbm_format); extern struct gl_renderer_interface *gl_renderer; #ifdef BUILD_DRM_VIRTUAL extern int drm_backend_init_virtual_output_api(struct weston_compositor *compositor); #else inline static int drm_backend_init_virtual_output_api(struct weston_compositor *compositor) { return 0; } #endif #ifdef BUILD_DRM_GBM int init_egl(struct drm_backend *b); int drm_output_init_egl(struct drm_output *output, struct drm_backend *b); void drm_output_fini_egl(struct drm_output *output); struct drm_fb * drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage); void renderer_switch_binding(struct weston_keyboard *keyboard, const struct timespec *time, uint32_t key, void *data); #else inline static int init_egl(struct drm_backend *b) { weston_log("Compiled without GBM/EGL support\n"); return -1; } inline static int drm_output_init_egl(struct drm_output *output, struct drm_backend *b) { return -1; } inline static void drm_output_fini_egl(struct drm_output *output) { } inline static struct drm_fb * drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage) { return NULL; } inline static void renderer_switch_binding(struct weston_keyboard *keyboard, const struct timespec *time, uint32_t key, void *data) { weston_log("Compiled without GBM/EGL support\n"); } #endif