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Add an option to configure autosuspend_delay_ms as i915 read
autosuspend_delay_ms to all PCI devices under GFX root port.
configuring autosuspend_delay_ms as optional.
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
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Enable gfx card pci devices runtime pm for all pci devices
and bridge under the topology of Gfx Card root port.
Added a library function to get the PCI root port ACPI
D state and to print the pci card devices runtime pm
status.
v2:
- Save pci dev power attrs to dynamically allocated array. [Rodrigo]
- Set autosuspend delay to 0 on supported devices. [Rodrigo]
- %s/else if/else in igt_pm_get_acpi_real_d_state. [Kamil]
v3:
- Add comment for MAX_PCI_DEVICES. [Badal]
- Use static global array __pci_dev_pwrattr[]. [Rodrigo]
- Use pci_slot_match iter. [Badal]
- Destroy the iter. [Badal]
v4:
- Added igt_pm_enable_pci_card_autosuspend() to avoid any
control attr save/restore by exit handler. [Rodrigo]
v5:
- Code refactoring to avoid code duplication.
- Few function name changed. [Rodrigo]
%s/igt_pm_enable_pci_card_autosuspend/igt_pm_enable_runtime_pm.
%s/__igt_pm_setup_pci_card_runtime_pm/igt_pm_setup_pci_dev_power_attrs.
%s/igt_pm_setup_power_attr/igt_pm_write_power_attr.
v5:
- %s/igt_pm_save_power_attr/igt_pm_read_power_attr/
- Added len argument to igt_pm_write_power_attr().
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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This lib function evaluate the lpsp capability from
the connector specific debugfs attribute i915_lpsp_info.
v2:
- changed the lib function prefix igt_output_is_lpsp_capable
to i915_output_is_lpsp_capable. [Martin]
v3:
- early return for the connector which doesn't support
lpsp on any platform.
v4:
- debugfs entry changed from i915_lpsp_info to i915_lpsp_capability.
v5:
- return lpsp capability false if i915_lpsp_capability debugfs is not
present. [Animesh]
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
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Remove the hardcoded path to the igfx (00:00:02.00) and instead pass in
the fd of the DRM device we wish to control, and look up the associated
device/power/ under sysfs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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Display the runtime pm status if we timeout waiting for status.
v2: Add helper to map runtime pm status enum to string.
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Vanshidhar Konda <vanshidhar.r.konda@intel.com>
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This patch does the following changes to lib/igt_pm.c
-dmc_loaded() will be used by new test i915_pm_dc.c which will validate
Display C States. So moving the same to igt_pm library.
-Introduced igt_disable_runtime_pm() in order to disable runtime suspend
for the function which support dc9.
-Changed the igt_pm_enable_sata_link_power_management() and
igt_pm_restore_sata_link_power_management() in order to save
and restore the sata link power policy by an exit handler.
v2: Simplify the comment section.
v3: Remove . from the subject line.
v4: Rebased, resolve conflicts in pm_rpm.c
Included patch set version change log.
v5: Listing actual change in patch set changelog to make review easier.
v6: igt's lib added support for disabling runtime suspend,
change in commit log. rebased due to test name pm_rpm changed
to i915_pm_rpm.
v7: Addressed review comment by saving POWER_DIR values in
igt_disable_runtime_pm(). [Imre]
v8: Addressed the review comment, igt_pm_enable_sata_link_power_management
function to restore the original SATA link power policy if things fail
by using an exit handler. [Imre]
v9: IGT failure fixture in i915_pm_backlight and i915_pm_rpm.
v10:Review comment fixup in sata_link_power_management
lib functions. [Imre]
v11:Add igt_assert_fd(pm_status_fd) in igt_disable_runtime_pm().
[Imre & Petri]
v12: Refactor igt_pm_pc8_plus_residencies_enabled() from
supports_pc8_plus_residencies().
Changed igt_disable_runtime_pm() return type. [Imre]
Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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Read sizeof - 1 to buffers so null-termination stays in bounds.
v2: Also clear the buffers before reusing (Chris).
Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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We report the failure from igt_setup_runtime_pm() so that the caller can
decide how they may proceed, so replace the hard assert with the error
propagation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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5s is often not enough for the sound module to finish loading, so bump
the timeout to 10s. For fun, poll quicker over the first 1s!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.linux.com>
Reviewed-by: Imre Deak <imre.deak@intel.linux.com>
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Sometimes we may probe the sound module as it is still being registered
and its debugfs not yet fully populated. If we do not find a file we
expect to exist, sleep a little and check again.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107801
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.linux.com>
Reviewed-by: Imre Deak <imre.deak@intel.linux.com>
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It doesn't seem to be preventing rpm (see the pm_rpm tests) if we fail
to enable runtime-powermanagement for audio, so reduce the warning to a
debug. It will still be visible if it fails, but only if it fails.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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Loading the sounds modules is asynchronous with the sysfs device
hierarchy being instantiated sometime after modprobe returns. As such
while we are probing for the sound device, poll a few times to
accommodate the async discovery.
v2: closedir() after use
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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In cases when runtime PM is enabled only from individual subtests and not
whole tests it is usable to be able to restore the old runtime PM config
and so avoid running subsequent subtests in an unexpected environment.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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HDA audio device can be present at various PCI paths on different systems
which the existing code did not account for.
Furthermore the failure to enable runtime PM was silent leaving callers
in the dark.
Improve it by auto-locating the PCI path and logging a warning when
something is not as expected.
v2:
* If there is no audio hw/driver there is no failure.
v3:
* Comment.
* Skip non-symlinks.
* Free path on failure and restore.
* Simplify with asprintf. (Chris Wilson)
v4:
* Find snd_hda_intel instance tied with an Intel device.
v5:
* Fix memory leak and silence Valgrind warning.
v6:
* Fix error out logic.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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IGT logging helpers are not signal safe so avoid calling them from exit
handlers.
At the same time refactor the code a bit to enable following patches.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Some tests (the ones which call igt_setup_runtime_pm and
igt_pm_enable_audio_runtime_pm) change default system configuration and
never restore it.
The configured runtime suspend is aggressive and may influence behaviour
of subsequent tests, so it is better to restore to previous values on test
exit.
This way system behaviour, with regards to a random sequence of executed
tests, will be more consistent from one run to another.
v2: Read failure means no runtime pm support so don't assert on it.
v3: Install exit handler before the write to close the Ctrl^C race. (Imre)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> # v2
Acked-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
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- Move all the pm helpers into igt_pm.c. No idea why that wasn't done
in the original commit that created igt_pm.c.
- Add missing docs where needed.
Cc: David Weinehall <david.weinehall@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Move power management related code to a separate library.
Initially this is done only for workarounds that apply to external
components. Modify the users of such workarounds accordingly.
This currently involves HD audio and SATA link power management.
For SATA link PM there's also code to save the previous settings,
to allow for resetting the values after we've finished testing.
Signed-off-by: David Weinehall <david.weinehall@intel.com>
Reviewed-by: Marius Vlad <marius.c.vlad@intel.com>
Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
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