drivers/gpu/drm/i915/display/intel_display_device.h
Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/display/intel_display_device.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/gpu/drm/i915/display/intel_display_device.h- Extension
.h- Size
- 13113 bytes
- Lines
- 353
- Domain
- Driver Families
- Bucket
- drivers/gpu
- Inferred role
- Driver Families: implementation source
- Status
- source implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/bitops.hlinux/types.hintel_display_limits.h
Detected Declarations
struct drm_printerstruct intel_displaystruct intel_display_parent_interfacestruct pci_devstruct intel_display_platformsstruct intel_display_runtime_infostruct intel_display_ip_verstruct intel_display_device_info
Annotated Snippet
struct intel_display_platforms {
union {
struct {
INTEL_DISPLAY_PLATFORMS(__MEMBER);
};
DECLARE_BITMAP(bitmap, __NUM_PLATFORMS);
};
};
#undef __MEMBER
#undef __COUNT
#undef __NUM_PLATFORMS
#define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
/* Keep in alphabetical order */ \
func(cursor_needs_physical); \
func(has_cdclk_crawl); \
func(has_cdclk_squash); \
func(has_ddi); \
func(has_dp_mst); \
func(has_dsb); \
func(has_fpga_dbg); \
func(has_gmch); \
func(has_hotplug); \
func(has_hti); \
func(has_ipc); \
func(has_overlay); \
func(has_psr); \
func(has_psr_hw_tracking); \
func(overlay_needs_physical); \
func(supports_tv);
#define HAS_128B_Y_TILING(__display) (!(__display)->platform.i915g && !(__display)->platform.i915gm)
#define HAS_4TILE(__display) ((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
#define HAS_ASYNC_FLIPS(__display) (DISPLAY_VER(__display) >= 5)
#define HAS_AS_SDP(__display) (DISPLAY_VER(__display) >= 13)
#define HAS_AUX_DIST(__display) (IS_DISPLAY_VER(__display, 9, 12) || (__display)->platform.alderlake_p || (__display)->platform.meteorlake)
#define HAS_BIGJOINER(__display) (DISPLAY_VER(__display) >= 11 && HAS_DSC(__display))
#define HAS_CASF(__display) (DISPLAY_VER(__display) >= 20)
#define HAS_CDCLK_CRAWL(__display) (DISPLAY_INFO(__display)->has_cdclk_crawl)
#define HAS_CDCLK_SQUASH(__display) (DISPLAY_INFO(__display)->has_cdclk_squash)
#define HAS_CMRR(__display) (DISPLAY_VER(__display) >= 20)
#define HAS_CMTG(__display) (!(__display)->platform.dg2 && DISPLAY_VER(__display) >= 13)
#define HAS_CUR_FBC(__display) (!HAS_GMCH(__display) && IS_DISPLAY_VER(__display, 7, 13))
#define HAS_D12_PLANE_MINIMIZATION(__display) ((__display)->platform.rocketlake || (__display)->platform.alderlake_s)
#define HAS_DBUF_OVERLAP_DETECTION(__display) (DISPLAY_RUNTIME_INFO(__display)->has_dbuf_overlap_detection)
#define HAS_DDI(__display) (DISPLAY_INFO(__display)->has_ddi)
#define HAS_DISPLAY(__display) (DISPLAY_RUNTIME_INFO(__display)->pipe_mask != 0)
#define HAS_DMC(__display) (DISPLAY_RUNTIME_INFO(__display)->has_dmc)
#define HAS_DOUBLE_BUFFERED_M_N(__display) (IS_DISPLAY_VER((__display), 9, 14) || (__display)->platform.broadwell)
#define HAS_DOUBLE_BUFFERED_LUT(__display) (DISPLAY_VER(__display) >= 30)
#define HAS_DOUBLE_WIDE(__display) (DISPLAY_VER(__display) < 4)
#define HAS_DP20(__display) ((__display)->platform.dg2 || DISPLAY_VER(__display) >= 14)
#define HAS_DPT(__display) (DISPLAY_VER(__display) >= 13)
#define HAS_DP_MST(__display) (DISPLAY_INFO(__display)->has_dp_mst)
#define HAS_DSB(__display) (DISPLAY_INFO(__display)->has_dsb)
#define HAS_DSC(__display) (DISPLAY_RUNTIME_INFO(__display)->has_dsc)
#define HAS_DSC_3ENGINES(__display) (DISPLAY_VERx100(__display) == 1401 && HAS_DSC(__display))
#define HAS_DSC_MST(__display) (DISPLAY_VER(__display) >= 12 && HAS_DSC(__display))
#define HAS_FBC(__display) (DISPLAY_RUNTIME_INFO(__display)->fbc_mask != 0)
#define HAS_FBC_DIRTY_RECT(__display) (DISPLAY_VER(__display) >= 30)
#define HAS_FBC_SYS_CACHE(__display) (DISPLAY_VER(__display) >= 35 && !(__display)->platform.dgfx)
#define HAS_FPGA_DBG_UNCLAIMED(__display) (DISPLAY_INFO(__display)->has_fpga_dbg)
#define HAS_FW_BLC(__display) (DISPLAY_VER(__display) >= 3)
#define HAS_GMBUS_BURST_READ(__display) (DISPLAY_VER(__display) >= 10 || (__display)->platform.kabylake)
#define HAS_GMBUS_IRQ(__display) (DISPLAY_VER(__display) >= 4)
#define HAS_GMCH(__display) (DISPLAY_INFO(__display)->has_gmch)
#define HAS_FDI(__display) (IS_DISPLAY_VER((__display), 5, 8) && !HAS_GMCH(__display))
#define HAS_HOTPLUG(__display) (DISPLAY_INFO(__display)->has_hotplug)
#define HAS_HW_SAGV_WM(__display) (DISPLAY_VER(__display) >= 13 && !(__display)->platform.dgfx)
#define HAS_IPC(__display) (DISPLAY_INFO(__display)->has_ipc)
#define HAS_IPS(__display) ((__display)->platform.haswell_ult || (__display)->platform.broadwell)
#define HAS_LRR(__display) (DISPLAY_VER(__display) >= 12)
#define HAS_LSPCON(__display) (IS_DISPLAY_VER(__display, 9, 10))
#define HAS_LT_PHY(__display) ((__display)->platform.novalake)
#define HAS_MBUS_JOINING(__display) ((__display)->platform.alderlake_p || DISPLAY_VER(__display) >= 14)
#define HAS_MSO(__display) (DISPLAY_VER(__display) >= 12)
#define HAS_OVERLAY(__display) (DISPLAY_INFO(__display)->has_overlay)
#define HAS_PIPEDMC(__display) (DISPLAY_VER(__display) >= 12)
#define HAS_PIXEL_NORMALIZER(__display) (DISPLAY_VER(__display) >= 35)
#define HAS_PSR(__display) (DISPLAY_INFO(__display)->has_psr)
#define HAS_PSR_HW_TRACKING(__display) (DISPLAY_INFO(__display)->has_psr_hw_tracking)
#define HAS_PSR2_SEL_FETCH(__display) (DISPLAY_VER(__display) >= 12)
#define HAS_PSR_TRANS_PUSH_FRAME_CHANGE(__display) (DISPLAY_VER(__display) >= 20)
#define HAS_SAGV(__display) (DISPLAY_VER(__display) >= 9 && \
!(__display)->platform.broxton && !(__display)->platform.geminilake)
#define HAS_SAGV_WM(__display) (DISPLAY_VER(__display) >= 12 && !(__display)->platform.rocketlake)
#define HAS_TRANSCODER(__display, trans) ((DISPLAY_RUNTIME_INFO(__display)->cpu_transcoder_mask & \
BIT(trans)) != 0)
#define HAS_UNCOMPRESSED_JOINER(__display) (DISPLAY_VER(__display) >= 13)
Annotation
- Immediate include surface: `linux/bitops.h`, `linux/types.h`, `intel_display_limits.h`.
- Detected declarations: `struct drm_printer`, `struct intel_display`, `struct intel_display_parent_interface`, `struct pci_dev`, `struct intel_display_platforms`, `struct intel_display_runtime_info`, `struct intel_display_ip_ver`, `struct intel_display_device_info`.
- Atlas domain: Driver Families / drivers/gpu.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.