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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/
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a57942bfdd
This is the final step for more generic support of DRM audio component. The generic audio component code is now moved to its own file, and the symbols are renamed from snd_hac_i915_* to snd_hdac_acomp_*, respectively. The generic code is enabled via the new kconfig, CONFIG_SND_HDA_COMPONENT, while CONFIG_SND_HDA_I915 is kept as the super-class. Along with the split, three new callbacks are added to audio_ops: pin2port is for providing the conversion between the pin number and the widget id, and master_bind/master_unbin are called at binding / unbinding the master component, respectively. All these are optional, but used in i915 implementation and also other later implementations. A note about the new snd_hdac_acomp_init() function: there is a slight difference between this and the old snd_hdac_i915_init(). The latter (still) synchronizes with the master component binding, i.e. it assures that the relevant DRM component gets bound when it returns, or gives a negative error. Meanwhile the new function doesn't synchronize but just leaves as is. It's the responsibility by the caller's side to synchronize, or the caller may accept the asynchronous binding on the fly. v1->v2: Fix missing NULL check in master_bind/unbind Signed-off-by: Takashi Iwai <tiwai@suse.de>
135 lines
4.3 KiB
Plaintext
135 lines
4.3 KiB
Plaintext
config DRM_I915
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tristate "Intel 8xx/9xx/G3x/G4x/HD Graphics"
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depends on DRM
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depends on X86 && PCI
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select INTEL_GTT
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select INTERVAL_TREE
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# we need shmfs for the swappable backing store, and in particular
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# the shmem_readpage() which depends upon tmpfs
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select SHMEM
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select TMPFS
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select DRM_KMS_HELPER
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select DRM_PANEL
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select DRM_MIPI_DSI
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select RELAY
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select IRQ_WORK
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# i915 depends on ACPI_VIDEO when ACPI is enabled
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# but for select to work, need to select ACPI_VIDEO's dependencies, ick
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select BACKLIGHT_LCD_SUPPORT if ACPI
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select BACKLIGHT_CLASS_DEVICE if ACPI
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select INPUT if ACPI
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select ACPI_VIDEO if ACPI
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select ACPI_BUTTON if ACPI
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select SYNC_FILE
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select IOSF_MBI
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select CRC32
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select SND_HDA_I915 if SND_HDA_CORE
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help
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Choose this option if you have a system that has "Intel Graphics
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Media Accelerator" or "HD Graphics" integrated graphics,
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including 830M, 845G, 852GM, 855GM, 865G, 915G, 945G, 965G,
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G35, G41, G43, G45 chipsets and Celeron, Pentium, Core i3,
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Core i5, Core i7 as well as Atom CPUs with integrated graphics.
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This driver is used by the Intel driver in X.org 6.8 and
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XFree86 4.4 and above. It replaces the older i830 module that
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supported a subset of the hardware in older X.org releases.
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Note that the older i810/i815 chipsets require the use of the
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i810 driver instead, and the Atom z5xx series has an entirely
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different implementation.
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If "M" is selected, the module will be called i915.
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config DRM_I915_ALPHA_SUPPORT
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bool "Enable alpha quality support for new Intel hardware by default"
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depends on DRM_I915
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default n
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help
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Choose this option if you have new Intel hardware and want to enable
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the alpha quality i915 driver support for the hardware in this kernel
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version. You can also enable the support at runtime using the module
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parameter i915.alpha_support=1; this option changes the default for
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that module parameter.
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It is recommended to upgrade to a kernel version with proper support
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as soon as it is available. Generally fixes for platforms with alpha
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support are not backported to older kernels.
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If in doubt, say "N".
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config DRM_I915_CAPTURE_ERROR
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bool "Enable capturing GPU state following a hang"
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depends on DRM_I915
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default y
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help
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This option enables capturing the GPU state when a hang is detected.
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This information is vital for triaging hangs and assists in debugging.
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Please report any hang to
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https://bugs.freedesktop.org/enter_bug.cgi?product=DRI
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for triaging.
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If in doubt, say "Y".
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config DRM_I915_COMPRESS_ERROR
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bool "Compress GPU error state"
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depends on DRM_I915_CAPTURE_ERROR
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select ZLIB_DEFLATE
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default y
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help
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This option selects ZLIB_DEFLATE if it isn't already
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selected and causes any error state captured upon a GPU hang
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to be compressed using zlib.
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If in doubt, say "Y".
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config DRM_I915_USERPTR
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bool "Always enable userptr support"
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depends on DRM_I915
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select MMU_NOTIFIER
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default y
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help
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This option selects CONFIG_MMU_NOTIFIER if it isn't already
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selected to enabled full userptr support.
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If in doubt, say "Y".
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config DRM_I915_GVT
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bool "Enable Intel GVT-g graphics virtualization host support"
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depends on DRM_I915
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depends on 64BIT
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default n
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help
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Choose this option if you want to enable Intel GVT-g graphics
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virtualization technology host support with integrated graphics.
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With GVT-g, it's possible to have one integrated graphics
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device shared by multiple VMs under different hypervisors.
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Note that at least one hypervisor like Xen or KVM is required for
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this driver to work, and it only supports newer device from
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Broadwell+. For further information and setup guide, you can
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visit: http://01.org/igvt-g.
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Now it's just a stub to support the modifications of i915 for
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GVT device model. It requires at least one MPT modules for Xen/KVM
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and other components of GVT device model to work. Use it under
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you own risk.
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If in doubt, say "N".
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config DRM_I915_GVT_KVMGT
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tristate "Enable KVM/VFIO support for Intel GVT-g"
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depends on DRM_I915_GVT
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depends on KVM
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depends on VFIO_MDEV && VFIO_MDEV_DEVICE
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default n
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help
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Choose this option if you want to enable KVMGT support for
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Intel GVT-g.
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menu "drm/i915 Debugging"
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depends on DRM_I915
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depends on EXPERT
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source drivers/gpu/drm/i915/Kconfig.debug
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endmenu
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