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Utility library function to get the Gfx Card PCI topology
root port pci device using libpaciaccess.
root port will be used to get the real ACPI D state.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The library provides igt_device_get_pci_device() function that allows to
get access to a PCI device from an open DRM device file descriptor. It
can be used on VF devices as long as a DRM driver is bound to them.
However, SR-IOV tests may want to exercise VF PCI devices created by a PF
without binding any DRM driver to them.
While keeping the API of igt_device_get_pci_device() untouched, extend API
of its underlying helper __igt_device_get_pci_device() with an extra
argument for specifying VF ID of the requested PCI device and expose this
function as public.
v2: refresh on top of IGT libpciaccess wrappers and drop previously added
but no longer needed error unwind path and recommendations for users
on calling pci_system_cleanup() after use (Chris),
- fix incorrect validation of snprintf() result and misaligned
formatting of igt_warn_on_f() arguments.
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Chris Wilson <chris.p.wilson@intel.com>
[jkrzyszt: DOC fix and wording improvement]
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This reverts commit c220c60bb4679e2e9cdf8accbf90f888e6819456.
Incorrect version of the patch has been pushed, sorry.
Signed-of-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
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The library provides igt_device_get_pci_device() function that allows to
get access to a PCI device from an open DRM device file descriptor. It
can be used on VF devices as long as a DRM driver is bound to them.
However, SR-IOV tests may want to exercise VF PCI devices created by a PF
without binding any DRM driver to them.
While keeping the API of igt_device_get_pci_device() untouched, extend API
of its underlying helper __igt_device_get_pci_device() with an extra
argument for specifying VF ID of the requested PCI device and expose this
function as public.
While being at it, fix pci_system_cleanup() not called on errors and
instruct users to call it for symmetry when the obtained struct pci_device
is no longer needed.
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
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This function get us pci address based by fd.
It allows us to make things a little bit more generic.
Also, we now require fd rather than doing guesswork when it comes to pci address.
v4: close sysfs fd
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Daniel Mrzyglod <daniel.t.mrzyglod@intel.com>
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One significant usecase for intel_reg/etc. is to be able to examine
the hardware state *before* loading the driver. If the tool forces
the driver to load we've totally lost that capability.
This reverts commit 8ae86621d6fff60b6e20c6b0f9b336785c935b0f.
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Michał Winiarski <michal.winiarski@intel.com>
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It allows us to make things a little bit more generic. Also, we now
require fd rather than doing guesswork when it comes to pci address.
v2: Use readlinkat rather than string concat, move stuff around, provide
a version that does not assert. (Chris)
v3: Print addr on failure, avoid assignment in conditionals. (Chris)
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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And use it! But let's start small.
Rather than going with "and by the way, here's the card index" from
igt_sysfs_path, we're making things more explicit.
v2: Drop idx comment. (Chris)
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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It looks like there are some rogue processes running in CI that prevent
DRM_MASTER from being obtained. Dump the list of clients on failure to
make it more obvious what is being left behind.
v2: Fix up gtkdocs, meson build
References: https://bugs.freedesktop.org/show_bug.cgi?id=104157
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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