1# SPDX-License-Identifier: GPL-2.0-only
  2config DRM_I915
  3	tristate "Intel 8xx/9xx/G3x/G4x/HD Graphics"
  4	depends on DRM
  5	depends on X86 && PCI
  6	select INTEL_GTT
  7	select INTERVAL_TREE
  8	# we need shmfs for the swappable backing store, and in particular
  9	# the shmem_readpage() which depends upon tmpfs
 10	select SHMEM
 11	select TMPFS
 12	select DRM_KMS_HELPER
 13	select DRM_PANEL
 14	select DRM_MIPI_DSI
 15	select RELAY
 16	select IRQ_WORK
 17	# i915 depends on ACPI_VIDEO when ACPI is enabled
 18	# but for select to work, need to select ACPI_VIDEO's dependencies, ick
 19	select BACKLIGHT_CLASS_DEVICE if ACPI
 20	select INPUT if ACPI
 21	select ACPI_VIDEO if ACPI
 22	select ACPI_BUTTON if ACPI
 23	select SYNC_FILE
 24	select IOSF_MBI
 25	select CRC32
 26	select SND_HDA_I915 if SND_HDA_CORE
 27	select CEC_CORE if CEC_NOTIFIER
 28	help
 29	  Choose this option if you have a system that has "Intel Graphics
 30	  Media Accelerator" or "HD Graphics" integrated graphics,
 31	  including 830M, 845G, 852GM, 855GM, 865G, 915G, 945G, 965G,
 32	  G35, G41, G43, G45 chipsets and Celeron, Pentium, Core i3,
 33	  Core i5, Core i7 as well as Atom CPUs with integrated graphics.
 34
 35	  This driver is used by the Intel driver in X.org 6.8 and
 36	  XFree86 4.4 and above. It replaces the older i830 module that
 37	  supported a subset of the hardware in older X.org releases.
 38
 39	  Note that the older i810/i815 chipsets require the use of the
 40	  i810 driver instead, and the Atom z5xx series has an entirely
 41	  different implementation.
 42
 43	  If "M" is selected, the module will be called i915.
 44
 45config DRM_I915_FORCE_PROBE
 46	string "Force probe driver for selected new Intel hardware"
 47	depends on DRM_I915
 48	help
 49	  This is the default value for the i915.force_probe module
 50	  parameter. Using the module parameter overrides this option.
 51
 52	  Force probe the driver for new Intel graphics devices that are
 53	  recognized but not properly supported by this kernel version. It is
 54	  recommended to upgrade to a kernel version with proper support as soon
 55	  as it is available.
 56
 57	  Use "" to disable force probe. If in doubt, use this.
 58
 59	  Use "<pci-id>[,<pci-id>,...]" to force probe the driver for listed
 60	  devices. For example, "4500" or "4500,4571".
 61
 62	  Use "*" to force probe the driver for all known devices.
 63
 64config DRM_I915_CAPTURE_ERROR
 65	bool "Enable capturing GPU state following a hang"
 66	depends on DRM_I915
 67	default y
 68	help
 69	  This option enables capturing the GPU state when a hang is detected.
 70	  This information is vital for triaging hangs and assists in debugging.
 71	  Please report any hang for triaging according to:
 72	    https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs
 73
 74	  If in doubt, say "Y".
 75
 76config DRM_I915_COMPRESS_ERROR
 77	bool "Compress GPU error state"
 78	depends on DRM_I915_CAPTURE_ERROR
 79	select ZLIB_DEFLATE
 80	default y
 81	help
 82	  This option selects ZLIB_DEFLATE if it isn't already
 83	  selected and causes any error state captured upon a GPU hang
 84	  to be compressed using zlib.
 85
 86	  If in doubt, say "Y".
 87
 88config DRM_I915_USERPTR
 89	bool "Always enable userptr support"
 90	depends on DRM_I915
 91	select MMU_NOTIFIER
 92	default y
 93	help
 94	  This option selects CONFIG_MMU_NOTIFIER if it isn't already
 95	  selected to enabled full userptr support.
 96
 97	  If in doubt, say "Y".
 98
 99config DRM_I915_GVT
100	bool "Enable Intel GVT-g graphics virtualization host support"
101	depends on DRM_I915
102	depends on 64BIT
103	default n
104	help
105	  Choose this option if you want to enable Intel GVT-g graphics
106	  virtualization technology host support with integrated graphics.
107	  With GVT-g, it's possible to have one integrated graphics
108	  device shared by multiple VMs under different hypervisors.
109
110	  Note that at least one hypervisor like Xen or KVM is required for
111	  this driver to work, and it only supports newer device from
112	  Broadwell+. For further information and setup guide, you can
113	  visit: http://01.org/igvt-g.
114
115	  Now it's just a stub to support the modifications of i915 for
116	  GVT device model. It requires at least one MPT modules for Xen/KVM
117	  and other components of GVT device model to work. Use it under
118	  you own risk.
119
120	  If in doubt, say "N".
121
122config DRM_I915_GVT_KVMGT
123	tristate "Enable KVM/VFIO support for Intel GVT-g"
124	depends on DRM_I915_GVT
125	depends on KVM
126	depends on VFIO_MDEV && VFIO_MDEV_DEVICE
127	default n
128	help
129	  Choose this option if you want to enable KVMGT support for
130	  Intel GVT-g.
131
132menu "drm/i915 Debugging"
133depends on DRM_I915
134depends on EXPERT
135source "drivers/gpu/drm/i915/Kconfig.debug"
136endmenu
137
138menu "drm/i915 Profile Guided Optimisation"
139	visible if EXPERT
140	depends on DRM_I915
141	source "drivers/gpu/drm/i915/Kconfig.profile"
142endmenu
143
144menu "drm/i915 Unstable Evolution"
145	visible if EXPERT && STAGING && BROKEN
146	depends on DRM_I915
147	source "drivers/gpu/drm/i915/Kconfig.unstable"
148endmenu