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      1 # SPDX-License-Identifier: GPL-2.0-only
      2 config 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 
     45 config DRM_I915_ALPHA_SUPPORT
     46 	bool "Enable alpha quality support for new Intel hardware by default"
     47 	depends on DRM_I915
     48 	help
     49 	  This option is deprecated. Use DRM_I915_FORCE_PROBE option instead.
     50 
     51 config DRM_I915_FORCE_PROBE
     52 	string "Force probe driver for selected new Intel hardware"
     53 	depends on DRM_I915
     54 	default "*" if DRM_I915_ALPHA_SUPPORT
     55 	help
     56 	  This is the default value for the i915.force_probe module
     57 	  parameter. Using the module parameter overrides this option.
     58 
     59 	  Force probe the driver for new Intel graphics devices that are
     60 	  recognized but not properly supported by this kernel version. It is
     61 	  recommended to upgrade to a kernel version with proper support as soon
     62 	  as it is available.
     63 
     64 	  Use "" to disable force probe. If in doubt, use this.
     65 
     66 	  Use "<pci-id>[,<pci-id>,...]" to force probe the driver for listed
     67 	  devices. For example, "4500" or "4500,4571".
     68 
     69 	  Use "*" to force probe the driver for all known devices.
     70 
     71 config DRM_I915_CAPTURE_ERROR
     72 	bool "Enable capturing GPU state following a hang"
     73 	depends on DRM_I915
     74 	default y
     75 	help
     76 	  This option enables capturing the GPU state when a hang is detected.
     77 	  This information is vital for triaging hangs and assists in debugging.
     78 	  Please report any hang for triaging according to:
     79 	    https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs
     80 
     81 	  If in doubt, say "Y".
     82 
     83 config DRM_I915_COMPRESS_ERROR
     84 	bool "Compress GPU error state"
     85 	depends on DRM_I915_CAPTURE_ERROR
     86 	select ZLIB_DEFLATE
     87 	default y
     88 	help
     89 	  This option selects ZLIB_DEFLATE if it isn't already
     90 	  selected and causes any error state captured upon a GPU hang
     91 	  to be compressed using zlib.
     92 
     93 	  If in doubt, say "Y".
     94 
     95 config DRM_I915_USERPTR
     96 	bool "Always enable userptr support"
     97 	depends on DRM_I915
     98 	select MMU_NOTIFIER
     99 	default y
    100 	help
    101 	  This option selects CONFIG_MMU_NOTIFIER if it isn't already
    102 	  selected to enabled full userptr support.
    103 
    104 	  If in doubt, say "Y".
    105 
    106 config DRM_I915_GVT
    107 	bool "Enable Intel GVT-g graphics virtualization host support"
    108 	depends on DRM_I915
    109 	depends on 64BIT
    110 	default n
    111 	help
    112 	  Choose this option if you want to enable Intel GVT-g graphics
    113 	  virtualization technology host support with integrated graphics.
    114 	  With GVT-g, it's possible to have one integrated graphics
    115 	  device shared by multiple VMs under different hypervisors.
    116 
    117 	  Note that at least one hypervisor like Xen or KVM is required for
    118 	  this driver to work, and it only supports newer device from
    119 	  Broadwell+. For further information and setup guide, you can
    120 	  visit: http://01.org/igvt-g.
    121 
    122 	  Now it's just a stub to support the modifications of i915 for
    123 	  GVT device model. It requires at least one MPT modules for Xen/KVM
    124 	  and other components of GVT device model to work. Use it under
    125 	  you own risk.
    126 
    127 	  If in doubt, say "N".
    128 
    129 config DRM_I915_GVT_KVMGT
    130 	tristate "Enable KVM/VFIO support for Intel GVT-g"
    131 	depends on DRM_I915_GVT
    132 	depends on KVM
    133 	depends on VFIO_MDEV && VFIO_MDEV_DEVICE
    134 	default n
    135 	help
    136 	  Choose this option if you want to enable KVMGT support for
    137 	  Intel GVT-g.
    138 
    139 menu "drm/i915 Debugging"
    140 depends on DRM_I915
    141 depends on EXPERT
    142 source "drivers/gpu/drm/i915/Kconfig.debug"
    143 endmenu
    144 
    145 menu "drm/i915 Profile Guided Optimisation"
    146 	visible if EXPERT
    147 	depends on DRM_I915
    148 	source "drivers/gpu/drm/i915/Kconfig.profile"
    149 endmenu
    150 
    151 menu "drm/i915 Unstable Evolution"
    152 	visible if EXPERT && STAGING && BROKEN
    153 	depends on DRM_I915
    154 	source "drivers/gpu/drm/i915/Kconfig.unstable"
    155 endmenu
    156