98a2f41167
We currently capture the GPU state after we detect a hang. This is vital for us to both triage and debug hangs in the wild (post-mortem debugging). However, it comes at the cost of running some potentially dangerous code (since it has to make very few assumption about the state of the driver) that is quite resource intensive. This patch introduces both a method to disable error capture at runtime (for users who hit bugs at runtime and need a workaround) and to disable error capture at compiletime (for realtime users who want to minimise any possible latency, and never require error capture, saving ~30k of code). The cost is that we now have to be wary of (and test!) a kconfig flag and a module parameter. The effect of the module parameter is easy to verify through code inspection and runtime testing, but a kconfig flag needs regular compile checking. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@linux.intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch Link: http://patchwork.freedesktop.org/patch/msgid/20161012090522.367-2-chris@chris-wilson.co.uk
100 lines
3.4 KiB
Plaintext
100 lines
3.4 KiB
Plaintext
config DRM_I915
|
|
tristate "Intel 8xx/9xx/G3x/G4x/HD Graphics"
|
|
depends on DRM
|
|
depends on X86 && PCI
|
|
select INTEL_GTT
|
|
select INTERVAL_TREE
|
|
# we need shmfs for the swappable backing store, and in particular
|
|
# the shmem_readpage() which depends upon tmpfs
|
|
select SHMEM
|
|
select TMPFS
|
|
select DRM_KMS_HELPER
|
|
select DRM_PANEL
|
|
select DRM_MIPI_DSI
|
|
# i915 depends on ACPI_VIDEO when ACPI is enabled
|
|
# but for select to work, need to select ACPI_VIDEO's dependencies, ick
|
|
select BACKLIGHT_LCD_SUPPORT if ACPI
|
|
select BACKLIGHT_CLASS_DEVICE if ACPI
|
|
select INPUT if ACPI
|
|
select ACPI_VIDEO if ACPI
|
|
select ACPI_BUTTON if ACPI
|
|
help
|
|
Choose this option if you have a system that has "Intel Graphics
|
|
Media Accelerator" or "HD Graphics" integrated graphics,
|
|
including 830M, 845G, 852GM, 855GM, 865G, 915G, 945G, 965G,
|
|
G35, G41, G43, G45 chipsets and Celeron, Pentium, Core i3,
|
|
Core i5, Core i7 as well as Atom CPUs with integrated graphics.
|
|
If M is selected, the module will be called i915. AGP support
|
|
is required for this driver to work. This driver is used by
|
|
the Intel driver in X.org 6.8 and XFree86 4.4 and above. It
|
|
replaces the older i830 module that supported a subset of the
|
|
hardware in older X.org releases.
|
|
|
|
Note that the older i810/i815 chipsets require the use of the
|
|
i810 driver instead, and the Atom z5xx series has an entirely
|
|
different implementation.
|
|
|
|
config DRM_I915_PRELIMINARY_HW_SUPPORT
|
|
bool "Enable preliminary support for prerelease Intel hardware by default"
|
|
depends on DRM_I915
|
|
default n
|
|
help
|
|
Choose this option if you have prerelease Intel hardware and want the
|
|
i915 driver to support it by default. You can enable such support at
|
|
runtime with the module option i915.preliminary_hw_support=1; this
|
|
option changes the default for that module option.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config DRM_I915_CAPTURE_ERROR
|
|
bool "Enable capturing GPU state following a hang"
|
|
depends on DRM_I915
|
|
default y
|
|
help
|
|
This option enables capturing the GPU state when a hang is detected.
|
|
This information is vital for triaging hangs and assists in debugging.
|
|
Please report any hang to
|
|
https://bugs.freedesktop.org/enter_bug.cgi?product=DRI
|
|
for triaging.
|
|
|
|
If in doubt, say "Y".
|
|
|
|
config DRM_I915_USERPTR
|
|
bool "Always enable userptr support"
|
|
depends on DRM_I915
|
|
select MMU_NOTIFIER
|
|
default y
|
|
help
|
|
This option selects CONFIG_MMU_NOTIFIER if it isn't already
|
|
selected to enabled full userptr support.
|
|
|
|
If in doubt, say "Y".
|
|
|
|
config DRM_I915_GVT
|
|
bool "Enable Intel GVT-g graphics virtualization host support"
|
|
depends on DRM_I915
|
|
default n
|
|
help
|
|
Choose this option if you want to enable Intel GVT-g graphics
|
|
virtualization technology host support with integrated graphics.
|
|
With GVT-g, it's possible to have one integrated graphics
|
|
device shared by multiple VMs under different hypervisors.
|
|
|
|
Note that at least one hypervisor like Xen or KVM is required for
|
|
this driver to work, and it only supports newer device from
|
|
Broadwell+. For further information and setup guide, you can
|
|
visit: http://01.org/igvt-g.
|
|
|
|
Now it's just a stub to support the modifications of i915 for
|
|
GVT device model. It requires at least one MPT modules for Xen/KVM
|
|
and other components of GVT device model to work. Use it under
|
|
you own risk.
|
|
|
|
If in doubt, say "N".
|
|
|
|
menu "drm/i915 Debugging"
|
|
depends on DRM_I915
|
|
depends on EXPERT
|
|
source drivers/gpu/drm/i915/Kconfig.debug
|
|
endmenu
|