| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| rodrigosiqueira | 139 | 24.26% | 7 | 13.46% |
| Haneen Mohammed | 133 | 23.21% | 7 | 13.46% |
| Louis Chauvet | 79 | 13.79% | 9 | 17.31% |
| Igor Matheus Andrade Torrente | 64 | 11.17% | 5 | 9.62% |
| Arthur Grillo | 47 | 8.20% | 2 | 3.85% |
| Melissa Wen | 21 | 3.66% | 2 | 3.85% |
| Daniel Vetter | 21 | 3.66% | 3 | 5.77% |
| Thomas Zimmermann | 21 | 3.66% | 5 | 9.62% |
| Oleg Vasilev | 11 | 1.92% | 1 | 1.92% |
| José Expósito | 10 | 1.75% | 3 | 5.77% |
| Maíra Canal | 9 | 1.57% | 2 | 3.85% |
| Sumera Priyadarsini | 7 | 1.22% | 1 | 1.92% |
| Kumar, Mahesh | 3 | 0.52% | 1 | 1.92% |
| Greg Kroah-Hartman | 3 | 0.52% | 1 | 1.92% |
| Lucas De Marchi | 2 | 0.35% | 1 | 1.92% |
| Alaa Emad | 2 | 0.35% | 1 | 1.92% |
| Sam Ravnborg | 1 | 0.17% | 1 | 1.92% |
| Total | 573 | 52 |
/* SPDX-License-Identifier: GPL-2.0+ */ #ifndef _VKMS_DRV_H_ #define _VKMS_DRV_H_ #include <linux/hrtimer.h> #include <drm/drm.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem.h> #include <drm/drm_gem_atomic_helper.h> #include <drm/drm_encoder.h> #include <drm/drm_writeback.h> #define DEFAULT_DEVICE_NAME "vkms" #define XRES_MIN 10 #define YRES_MIN 10 #define XRES_DEF 1024 #define YRES_DEF 768 #define XRES_MAX 8192 #define YRES_MAX 8192 #define NUM_OVERLAY_PLANES 8 #define VKMS_LUT_SIZE 256 /** * struct vkms_frame_info - Structure to store the state of a frame * * @fb: backing drm framebuffer * @src: source rectangle of this frame in the source framebuffer, stored in 16.16 fixed-point form * @dst: destination rectangle in the crtc buffer, stored in whole pixel units * @map: see @drm_shadow_plane_state.data * @rotation: rotation applied to the source. * * @src and @dst should have the same size modulo the rotation. */ struct vkms_frame_info { struct drm_framebuffer *fb; struct drm_rect src, dst; struct iosys_map map[DRM_FORMAT_MAX_PLANES]; unsigned int rotation; }; /** * struct pixel_argb_u16 - Internal representation of a pixel color. * @a: Alpha component value, stored in 16 bits, without padding, using * machine endianness * @r: Red component value, stored in 16 bits, without padding, using * machine endianness * @g: Green component value, stored in 16 bits, without padding, using * machine endianness * @b: Blue component value, stored in 16 bits, without padding, using * machine endianness * * The goal of this structure is to keep enough precision to ensure * correct composition results in VKMS and simplifying color * manipulation by splitting each component into its own field. * Caution: the byte ordering of this structure is machine-dependent, * you can't cast it directly to AR48 or xR48. */ struct pixel_argb_u16 { u16 a, r, g, b; }; struct line_buffer { size_t n_pixels; struct pixel_argb_u16 *pixels; }; /** * typedef pixel_write_t - These functions are used to read a pixel from a * &struct pixel_argb_u16, convert it in a specific format and write it in the @out_pixel * buffer. * * @out_pixel: destination address to write the pixel * @in_pixel: pixel to write */ typedef void (*pixel_write_t)(u8 *out_pixel, const struct pixel_argb_u16 *in_pixel); struct vkms_writeback_job { struct iosys_map data[DRM_FORMAT_MAX_PLANES]; struct vkms_frame_info wb_frame_info; pixel_write_t pixel_write; }; /** * enum pixel_read_direction - Enum used internally by VKMS to represent a reading direction in a * plane. */ enum pixel_read_direction { READ_BOTTOM_TO_TOP, READ_TOP_TO_BOTTOM, READ_RIGHT_TO_LEFT, READ_LEFT_TO_RIGHT }; struct vkms_plane_state; /** * typedef pixel_read_line_t - These functions are used to read a pixel line in the source frame, * convert it to `struct pixel_argb_u16` and write it to @out_pixel. * * @plane: plane used as source for the pixel value * @x_start: X (width) coordinate of the first pixel to copy. The caller must ensure that x_start * is non-negative and smaller than @plane->frame_info->fb->width. * @y_start: Y (height) coordinate of the first pixel to copy. The caller must ensure that y_start * is non-negative and smaller than @plane->frame_info->fb->height. * @direction: direction to use for the copy, starting at @x_start/@y_start * @count: number of pixels to copy * @out_pixel: pointer where to write the pixel values. They will be written from @out_pixel[0] * (included) to @out_pixel[@count] (excluded). The caller must ensure that out_pixel have a * length of at least @count. */ typedef void (*pixel_read_line_t)(const struct vkms_plane_state *plane, int x_start, int y_start, enum pixel_read_direction direction, int count, struct pixel_argb_u16 out_pixel[]); /** * struct conversion_matrix - Matrix to use for a specific encoding and range * * @matrix: Conversion matrix from yuv to rgb. The matrix is stored in a row-major manner and is * used to compute rgb values from yuv values: * [[r],[g],[b]] = @matrix * [[y],[u],[v]] * OR for yvu formats: * [[r],[g],[b]] = @matrix * [[y],[v],[u]] * The values of the matrix are signed fixed-point values with 32 bits fractional part. * @y_offset: Offset to apply on the y value. */ struct conversion_matrix { s64 matrix[3][3]; int y_offset; }; /** * struct vkms_plane_state - Driver specific plane state * @base: base plane state * @frame_info: data required for composing computation * @pixel_read_line: function to read a pixel line in this plane. The creator of a * struct vkms_plane_state must ensure that this pointer is valid * @conversion_matrix: matrix used for yuv formats to convert to rgb */ struct vkms_plane_state { struct drm_shadow_plane_state base; struct vkms_frame_info *frame_info; pixel_read_line_t pixel_read_line; struct conversion_matrix conversion_matrix; }; struct vkms_plane { struct drm_plane base; }; struct vkms_color_lut { struct drm_color_lut *base; size_t lut_length; s64 channel_value2index_ratio; }; /** * struct vkms_crtc_state - Driver specific CRTC state * * @base: base CRTC state * @composer_work: work struct to compose and add CRC entries * * @num_active_planes: Number of active planes * @active_planes: List containing all the active planes (counted by * @num_active_planes). They should be stored in z-order. * @active_writeback: Current active writeback job * @gamma_lut: Look up table for gamma used in this CRTC * @crc_pending: Protected by @vkms_output.composer_lock, true when the frame CRC is not computed * yet. Used by vblank to detect if the composer is too slow. * @wb_pending: Protected by @vkms_output.composer_lock, true when a writeback frame is requested. * @frame_start: Protected by @vkms_output.composer_lock, saves the frame number before the start * of the composition process. * @frame_end: Protected by @vkms_output.composer_lock, saves the last requested frame number. * This is used to generate enough CRC entries when the composition worker is too slow. */ struct vkms_crtc_state { struct drm_crtc_state base; struct work_struct composer_work; int num_active_planes; struct vkms_plane_state **active_planes; struct vkms_writeback_job *active_writeback; struct vkms_color_lut gamma_lut; bool crc_pending; bool wb_pending; u64 frame_start; u64 frame_end; }; /** * struct vkms_output - Internal representation of all output components in VKMS * * @crtc: Base CRTC in DRM * @encoder: DRM encoder used for this output * @connector: DRM connector used for this output * @wb_connecter: DRM writeback connector used for this output * @vblank_hrtimer: Timer used to trigger the vblank * @period_ns: vblank period, in nanoseconds, used to configure @vblank_hrtimer and to compute * vblank timestamps * @composer_workq: Ordered workqueue for @composer_state.composer_work. * @lock: Lock used to protect concurrent access to the composer * @composer_enabled: Protected by @lock, true when the VKMS composer is active (crc needed or * writeback) * @composer_state: Protected by @lock, current state of this VKMS output * @composer_lock: Lock used internally to protect @composer_state members */ struct vkms_output { struct drm_crtc crtc; struct drm_writeback_connector wb_connector; struct drm_encoder wb_encoder; struct hrtimer vblank_hrtimer; ktime_t period_ns; struct workqueue_struct *composer_workq; spinlock_t lock; bool composer_enabled; struct vkms_crtc_state *composer_state; spinlock_t composer_lock; }; struct vkms_config; /** * struct vkms_device - Description of a VKMS device * * @drm - Base device in DRM * @faux_dev - Associated faux device * @output - Configuration and sub-components of the VKMS device * @config: Configuration used in this VKMS device */ struct vkms_device { struct drm_device drm; struct faux_device *faux_dev; const struct vkms_config *config; }; /* * The following helpers are used to convert a member of a struct into its parent. */ #define drm_crtc_to_vkms_output(target) \ container_of(target, struct vkms_output, crtc) #define drm_device_to_vkms_device(target) \ container_of(target, struct vkms_device, drm) #define to_vkms_crtc_state(target)\ container_of(target, struct vkms_crtc_state, base) #define to_vkms_plane_state(target)\ container_of(target, struct vkms_plane_state, base.base) /** * vkms_crtc_init() - Initialize a CRTC for VKMS * @dev: DRM device associated with the VKMS buffer * @crtc: uninitialized CRTC device * @primary: primary plane to attach to the CRTC * @cursor: plane to attach to the CRTC */ struct vkms_output *vkms_crtc_init(struct drm_device *dev, struct drm_plane *primary, struct drm_plane *cursor); /** * vkms_output_init() - Initialize all sub-components needed for a VKMS device. * * @vkmsdev: VKMS device to initialize */ int vkms_output_init(struct vkms_device *vkmsdev); /** * vkms_plane_init() - Initialize a plane * * @vkmsdev: VKMS device containing the plane * @type: type of plane to initialize */ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev, enum drm_plane_type type); /* CRC Support */ const char *const *vkms_get_crc_sources(struct drm_crtc *crtc, size_t *count); int vkms_set_crc_source(struct drm_crtc *crtc, const char *src_name); int vkms_verify_crc_source(struct drm_crtc *crtc, const char *source_name, size_t *values_cnt); /* Composer Support */ void vkms_composer_worker(struct work_struct *work); void vkms_set_composer(struct vkms_output *out, bool enabled); void vkms_writeback_row(struct vkms_writeback_job *wb, const struct line_buffer *src_buffer, int y); /* Writeback */ int vkms_enable_writeback_connector(struct vkms_device *vkmsdev, struct vkms_output *vkms_out); #endif /* _VKMS_DRV_H_ */