1 /* SPDX-License-Identifier: MIT */ 2 /* Copyright © 2025 Intel Corporation x*/ 3 4 #ifndef __DISPLAY_PARENT_INTERFACE_H__ 5 #define __DISPLAY_PARENT_INTERFACE_H__ 6 7 #include <linux/types.h> 8 9 struct dma_fence; 10 struct drm_crtc; 11 struct drm_device; 12 struct drm_framebuffer; 13 struct drm_gem_object; 14 struct drm_plane_state; 15 struct drm_scanout_buffer; 16 struct i915_vma; 17 struct intel_hdcp_gsc_context; 18 struct intel_initial_plane_config; 19 struct intel_panic; 20 struct intel_stolen_node; 21 struct ref_tracker; 22 23 /* Keep struct definitions sorted */ 24 25 struct intel_display_hdcp_interface { 26 ssize_t (*gsc_msg_send)(struct intel_hdcp_gsc_context *gsc_context, 27 void *msg_in, size_t msg_in_len, 28 void *msg_out, size_t msg_out_len); 29 bool (*gsc_check_status)(struct drm_device *drm); 30 struct intel_hdcp_gsc_context *(*gsc_context_alloc)(struct drm_device *drm); 31 void (*gsc_context_free)(struct intel_hdcp_gsc_context *gsc_context); 32 }; 33 34 struct intel_display_initial_plane_interface { 35 void (*vblank_wait)(struct drm_crtc *crtc); 36 struct drm_gem_object *(*alloc_obj)(struct drm_device *drm, struct intel_initial_plane_config *plane_config); 37 int (*setup)(struct drm_plane_state *plane_state, struct intel_initial_plane_config *plane_config, 38 struct drm_framebuffer *fb, struct i915_vma *vma); 39 void (*config_fini)(struct intel_initial_plane_config *plane_configs); 40 }; 41 42 struct intel_display_irq_interface { 43 bool (*enabled)(struct drm_device *drm); 44 void (*synchronize)(struct drm_device *drm); 45 }; 46 47 struct intel_display_panic_interface { 48 struct intel_panic *(*alloc)(void); 49 int (*setup)(struct intel_panic *panic, struct drm_scanout_buffer *sb); 50 void (*finish)(struct intel_panic *panic); 51 }; 52 53 struct intel_display_pc8_interface { 54 void (*block)(struct drm_device *drm); 55 void (*unblock)(struct drm_device *drm); 56 }; 57 58 struct intel_display_rpm_interface { 59 struct ref_tracker *(*get)(const struct drm_device *drm); 60 struct ref_tracker *(*get_raw)(const struct drm_device *drm); 61 struct ref_tracker *(*get_if_in_use)(const struct drm_device *drm); 62 struct ref_tracker *(*get_noresume)(const struct drm_device *drm); 63 64 void (*put)(const struct drm_device *drm, struct ref_tracker *wakeref); 65 void (*put_raw)(const struct drm_device *drm, struct ref_tracker *wakeref); 66 void (*put_unchecked)(const struct drm_device *drm); 67 68 bool (*suspended)(const struct drm_device *drm); 69 void (*assert_held)(const struct drm_device *drm); 70 void (*assert_block)(const struct drm_device *drm); 71 void (*assert_unblock)(const struct drm_device *drm); 72 }; 73 74 struct intel_display_rps_interface { 75 void (*boost_if_not_started)(struct dma_fence *fence); 76 void (*mark_interactive)(struct drm_device *drm, bool interactive); 77 void (*ilk_irq_handler)(struct drm_device *drm); 78 }; 79 80 struct intel_display_stolen_interface { 81 int (*insert_node_in_range)(struct intel_stolen_node *node, u64 size, 82 unsigned int align, u64 start, u64 end); 83 int (*insert_node)(struct intel_stolen_node *node, u64 size, unsigned int align); /* Optional */ 84 void (*remove_node)(struct intel_stolen_node *node); 85 bool (*initialized)(struct drm_device *drm); 86 bool (*node_allocated)(const struct intel_stolen_node *node); 87 u64 (*node_offset)(const struct intel_stolen_node *node); 88 u64 (*area_address)(struct drm_device *drm); /* Optional */ 89 u64 (*area_size)(struct drm_device *drm); /* Optional */ 90 u64 (*node_address)(const struct intel_stolen_node *node); 91 u64 (*node_size)(const struct intel_stolen_node *node); 92 struct intel_stolen_node *(*node_alloc)(struct drm_device *drm); 93 void (*node_free)(const struct intel_stolen_node *node); 94 }; 95 96 /** 97 * struct intel_display_parent_interface - services parent driver provides to display 98 * 99 * The parent, or core, driver provides a pointer to this structure to display 100 * driver when calling intel_display_device_probe(). The display driver uses it 101 * to access services provided by the parent driver. The structure may contain 102 * sub-struct pointers to group function pointers by functionality. 103 * 104 * All function and sub-struct pointers must be initialized and callable unless 105 * explicitly marked as "optional" below. The display driver will only NULL 106 * check the optional pointers. 107 */ 108 struct intel_display_parent_interface { 109 /** @hdcp: HDCP GSC interface */ 110 const struct intel_display_hdcp_interface *hdcp; 111 112 /** @initial_plane: Initial plane interface */ 113 const struct intel_display_initial_plane_interface *initial_plane; 114 115 /** @irq: IRQ interface */ 116 const struct intel_display_irq_interface *irq; 117 118 /** @panic: Panic interface */ 119 const struct intel_display_panic_interface *panic; 120 121 /** @pc8: PC8 interface. Optional. */ 122 const struct intel_display_pc8_interface *pc8; 123 124 /** @rpm: Runtime PM functions */ 125 const struct intel_display_rpm_interface *rpm; 126 127 /** @rps: RPS interface. Optional. */ 128 const struct intel_display_rps_interface *rps; 129 130 /** @stolen: Stolen memory. */ 131 const struct intel_display_stolen_interface *stolen; 132 133 /* Generic independent functions */ 134 struct { 135 /** @fence_priority_display: Set display priority. Optional. */ 136 void (*fence_priority_display)(struct dma_fence *fence); 137 138 /** @has_auxccs: Are AuxCCS formats supported by the parent. Optional. */ 139 bool (*has_auxccs)(struct drm_device *drm); 140 141 /** @has_fenced_regions: Support legacy fencing? Optional. */ 142 bool (*has_fenced_regions)(struct drm_device *drm); 143 144 /** @vgpu_active: Is vGPU active? Optional. */ 145 bool (*vgpu_active)(struct drm_device *drm); 146 }; 147 }; 148 149 #endif 150