diff options
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_config.h')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_config.h | 59 |
1 files changed, 57 insertions, 2 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms_config.h index 978418db84b9..ad303b34ee03 100644 --- a/drivers/gpu/drm/vkms/vkms_config.h +++ b/drivers/gpu/drm/vkms/vkms_config.h @@ -5,6 +5,7 @@ #include <linux/list.h> #include <linux/types.h> +#include <linux/xarray.h> #include "vkms_drv.h" @@ -12,14 +13,12 @@ * struct vkms_config - General configuration for VKMS driver * * @dev_name: Name of the device - * @writeback: If true, a writeback buffer can be attached to the CRTC * @planes: List of planes configured for the device * @crtcs: List of CRTCs configured for the device * @dev: Used to store the current VKMS device. Only set when the device is instantiated. */ struct vkms_config { const char *dev_name; - bool writeback; struct list_head planes; struct list_head crtcs; struct vkms_device *dev; @@ -32,6 +31,7 @@ struct vkms_config { * @config: The vkms_config this plane belongs to * @type: Type of the plane. The creator of configuration needs to ensures that * at least one primary plane is present. + * @possible_crtcs: Array of CRTCs that can be used with this plane * @plane: Internal usage. This pointer should never be considered as valid. * It can be used to store a temporary reference to a VKMS plane during * device creation. This pointer is not managed by the configuration and @@ -42,6 +42,7 @@ struct vkms_config_plane { struct vkms_config *config; enum drm_plane_type type; + struct xarray possible_crtcs; /* Internal usage */ struct vkms_plane *plane; @@ -85,6 +86,16 @@ struct vkms_config_crtc { list_for_each_entry((crtc_cfg), &(config)->crtcs, link) /** + * vkms_config_plane_for_each_possible_crtc - Iterate over the vkms_config_plane + * possible CRTCs + * @plane_cfg: &struct vkms_config_plane pointer + * @idx: Index of the cursor + * @possible_crtc: &struct vkms_config_crtc pointer used as cursor + */ +#define vkms_config_plane_for_each_possible_crtc(plane_cfg, idx, possible_crtc) \ + xa_for_each(&(plane_cfg)->possible_crtcs, idx, (possible_crtc)) + +/** * vkms_config_create() - Create a new VKMS configuration * @dev_name: Name of the device * @@ -192,6 +203,22 @@ vkms_config_plane_set_type(struct vkms_config_plane *plane_cfg, } /** + * vkms_config_plane_attach_crtc - Attach a plane to a CRTC + * @plane_cfg: Plane to attach + * @crtc_cfg: CRTC to attach @plane_cfg to + */ +int __must_check vkms_config_plane_attach_crtc(struct vkms_config_plane *plane_cfg, + struct vkms_config_crtc *crtc_cfg); + +/** + * vkms_config_plane_detach_crtc - Detach a plane from a CRTC + * @plane_cfg: Plane to detach + * @crtc_cfg: CRTC to detach @plane_cfg from + */ +void vkms_config_plane_detach_crtc(struct vkms_config_plane *plane_cfg, + struct vkms_config_crtc *crtc_cfg); + +/** * vkms_config_create_crtc() - Add a new CRTC configuration * @config: Configuration to add the CRTC to * @@ -231,4 +258,32 @@ vkms_config_crtc_set_writeback(struct vkms_config_crtc *crtc_cfg, crtc_cfg->writeback = writeback; } +/** + * vkms_config_crtc_primary_plane() - Return the primary plane for a CRTC + * @config: Configuration containing the CRTC + * @crtc_config: Target CRTC + * + * Note that, if multiple primary planes are found, the first one is returned. + * In this case, the configuration will be invalid. See vkms_config_is_valid(). + * + * Returns: + * The primary plane or NULL if none is assigned yet. + */ +struct vkms_config_plane *vkms_config_crtc_primary_plane(const struct vkms_config *config, + struct vkms_config_crtc *crtc_cfg); + +/** + * vkms_config_crtc_cursor_plane() - Return the cursor plane for a CRTC + * @config: Configuration containing the CRTC + * @crtc_config: Target CRTC + * + * Note that, if multiple cursor planes are found, the first one is returned. + * In this case, the configuration will be invalid. See vkms_config_is_valid(). + * + * Returns: + * The cursor plane or NULL if none is assigned yet. + */ +struct vkms_config_plane *vkms_config_crtc_cursor_plane(const struct vkms_config *config, + struct vkms_config_crtc *crtc_cfg); + #endif /* _VKMS_CONFIG_H_ */ |