- 24 Oct, 2014 40 commits
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Imre Deak authored
The suspend_late handler saves some registers and powers off the device, so it doesn't have a big overhead. Calling it at S4 poweroff_late time makes the power off handling identical to the S3 suspend and S4 freeze handling, so do this for consistency. Signed-off-by:
Imre Deak <imre.deak@intel.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Imre Deak authored
By now the S4 freeze/thaw and S3 suspend/resume events are handled the same way, so we can rename the freeze/thaw internal helpers to suspend/resume accordingly to make clearer what the helpers do. Also rename i915_resume_early to i915_drm_resume_early aligning it with the rest of the helper names. No functional change. Signed-off-by:
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Imre Deak authored
The S3 and S4 events are now handled the same way internally, there is no need to keep separate wrapper functions around them. Simply reuse the suspend/resume versions everywhere. No functional change. Signed-off-by:
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Imre Deak authored
We already disable everything during S4 freeze, except the PCI device itself. There is no reason why we couldn't disable that too and doing so allows us to unify these handlers in the next patch with the corresponding S3 suspend/resume handlers. Signed-off-by:
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Imre Deak authored
To avoid processing hotplug events we disable connector polling for the duration of S3 suspend. We also disable it for S4 freeze, and keep it disabled after S4 thaw. This won't prevent though hotplug processing, since we re-enable interrupts anyway. There is also no need to prevent it at that time, since we reinitialize everything during thaw, so the device is in a consistent state. So to simplify things enable polling during thaw, which will allow us to handle S4 thaw the same way as S3 resume in an upcoming patch. Signed-off-by:
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Imre Deak authored
Checking for GT faults is not specific in any way to S4 thaw, so do it also during S3 resume, S4 restore and driver load time. This allows us to unify the Sx handlers in an upcoming patch. v2: - move the check to intel_uncore_early_sanitize(), so we check at driver load time too (Chris) Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Imre Deak authored
The logic to skip restoring GTT mappings was added to speed up suspend/resume, but not on old GENs where not restoring them caused problems. The check for old GENs is based on the existence of OpRegion, but this doesn't work since opregion is initialized only after the check. So we end up always restoring the mappings. On my BYT - which has OpRegion - skipping restoring the mappings during suspend doesn't work, I get a GPU hang after resume. Also the logic of when to allow the optimization during S4 is reversed: we should allow it during S4 thaw but not during S4 restore, but atm we have it the other way around in the code. Since correctness wins over optimal code and since the optimization wasn't used anyway I decided not to try to fix it at this point, but just remove it. This allows us to unify the S3 and S4 handlers in the following patches. Signed-off-by:
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Imre Deak authored
If the device is suspended already through the switcheroo interface we shouldn't suspend it again or resume it after suspend. We have the corresponding check for S3 suspend already, add it for all the other S3 and S4 handlers. Also move the check from i915_resume_early() to i915_resume_legacy(), so that it's done in the high level handler for all PM events. v2: - fix the resume path too, we don't need to special case there DRM_SWITCH_POWER_OFF with the device being enabled (in which case we'd have to disable the device), since that never happens (Ville) Signed-off-by:
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Imre Deak authored
During switcheroo/legacy suspend we don't call the suspend_late handler but when resuming afterwards we call resume_early. This happened to work so far, since suspend_late only disabled the PCI device. This changed in commit 016970be Author: Sagar Kamble <sagar.a.kamble@intel.com> Date: Wed Aug 13 23:07:06 2014 +0530 drm/i915: Sharing platform specific sequence between runtime and system susp after which we also saved/restored the VLV Gunit HW state in suspend_late/resume_early. So now since we don't save the state during suspend a following resume will restore a corrupted state. Fix this by calling the suspend_late handler during both switcheroo and legacy suspend. CC: Sagar Kamble <sagar.a.kamble@intel.com> Signed-off-by:
Sagar Kamble <sagar.a.kamble@intel.com> Reviewed-by:
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Imre Deak authored
Signed-off-by:
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Imre Deak authored
i915_suspend() is called from the DRM legacy S3 suspend/S4 freeze paths and the switcheroo suspend path. For switcheroo we only ever need to perform a full suspend (PM_EVENT_SUSPEND) and for the DRM legacy path we can handle the S4 freeze (PM_EVENT_FREEZE) the same way as S3 suspend. The only difference atm between suspend and freeze is that during freeze we don't disable the PCI device, but there is no reason why we can't do so. So unify the two cases to reduce complexity. Note that for the DRM legacy case the thaw event is not handled, so we disable the display before creating the hibernation image and it won't get re-enabled until reboot. We could fix this leaving the display enabled for the image creation/writing (if we care enough about UMS), but this can be done as a follow-up. Signed-off-by:
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Imre Deak authored
This is needed by an upcoming patch fixing the switcheroo/legacy suspend paths. No functional change. Signed-off-by:
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Arun Siluvery authored
The number of DWords should be even when doing ring emits as command sequences require QWord alignment. There was some discussion about the maximum length of the MI_LRI command. Quoting Mika "I did some test with bdw: "The maximum is 128 writes, resulting the 8 bit length field of the command being 0xff, thus following the spec. The 128'th write went through. "Perhaps the max command length is then less in older gens? "Perhaps WARN_ON(x > 128) in MI_LOAD_REGISTER_IMM would be in place but one needs minor tweak to command parser a bit also then. #define I915_MAX_WA_REGS 16 keeps us safe for now atleast." Ville commented that on pre-gen6 the length field seems to be restricted to 0x3f though. So for all cases we should be ok. v2: user LRI variant that can write multiple regs in one go (Damien). We can simply insert one NOP at the end instead of one per register write. Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by:
Arun Siluvery <arun.siluvery@linux.intel.com> Reviewed-by:
Damien Lespiau <damien.lespiau@intel.com> [danvet: Add a summary of the MI_LRI length discussion.] Signed-off-by:
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Ville Syrjälä authored
The cursor plane also supports 180 degree rotation. Add a new "cursor-rotation" property on the crtc which controls this. Unlike sprites, the cursor has a fixed size, so if you have a small cursor image with the rest of the bo filled by transparent pixels, simply flipping the rotation property will cause the visible part of the cursor to shift. This is something to keep in mind when using cursor rotation. v2: Fix gen4/vlv by offsetting the base address appropriately v3: Removing cursor-rotation property and using rotation property on cursor plane. v4: Changing the author name back to Ville. v5 (by Matt Roper): Slight tweaking to apply against latest di-nightly codebase. Cc: Sagar Kamble <sagar.a.kamble@intel.com> Signed-off-by:
Sonika Jindal <sonika.jindal@intel.com> Reviewed-by:
Matt Roper <matthew.d.roper@intel.com> Tested-by (IVB): Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
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Daniel Vetter authored
Not having checks for this isn't good. I've checked igt and libdrm and they all already clear flags properly. So we're lucky and should be able to sneak this ABI clarification in. Testcase: igt/gem_wait/invalid-flags Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85280Reviewed-by:
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Yu Zhang authored
This is beautification prep work since vgt will add even more special cases. With these macros it's much easier to see what's going on really. Signed-off-by:
Yu Zhang <yu.c.zhang@linux.intel.com> [danvet: #undef the temporary macros after the function again. And write a commit message.] Signed-off-by:
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Paulo Zanoni authored
Only run it after we actually enable the power well. When we're booting the machine there are cases where we run hsw_power_well_post_enable without really needing, and even though this is not causing any real bugs, it is unneeded and causes confusion to people debugging interrupts. Signed-off-by:
Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by:
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Rodrigo Vivi authored
Current chv spec teels we can only use either 16 or 32 bits as precision. Although in the past VLV went from 16/32 to 32/64 and spec might not be updated, these precision values brings stability and fixes some issues Wayne was facing. Cc: Wayne Boyer <wayne.boyer@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Tested-by:
Wayne Boyer <wayne.boyer@intel.com> Reviewed-by:
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Daniel Vetter authored
The indirection here seems to serve no purpose. Probably leftovers from earlier revisions. Spotted while trying to review some mst patches. Cc: Dave Airlie <airlied@gmail.com> Signed-off-by: -
Michel Thierry authored
Otherwise we will get WARNs when we read context status registers and the machine is suspended. Testcase: igt/pm_rpm/debugfs-read Signed-off-by:
Michel Thierry <michel.thierry@intel.com> Signed-off-by:
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Ville Syrjälä authored
I managed to fumble the per spline PCS DW11 register defines in: commit 570e2a74 Author: Ville Syrjälä <ville.syrjala@linux.intel.com> Date: Mon Aug 18 14:42:46 2014 +0300 drm/i915: Clear TX FIFO reset master override bits on chv Fortunately the bit in DW0 that was cleared due to this didn't have any effect as long as the bit we meant to clear was already zero. Signed-off-by:
Jani Nikula <jani.nikula@intel.com> [danvet: Fix commit ref as pointed out by Jani.] Signed-off-by:
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Ville Syrjälä authored
intel_crt_reset() resets the ADPA register on all gen5+ platforms. However the debug message claims it's touching the PCH ADPA register which is clearly not what it does on VLV. Drop the PCH part from the debug message. Signed-off-by:
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Paulo Zanoni authored
For some yet-undiscovered reason, when IPS gets enabled, the pipe CRC changes. Since hsw_enable_ips() doesn't really guarantees to enable IPS (it depends on package C-states), we can't really predict if IPS is enabled or disabled while running our CRC tests, so let's just completely disable IPS while pipe CRCs are being used. If we find a way to make IPS not change the pipe CRC result, we may want to fix IPS and then revert this patch. While this doesn't happen, let's merge this patch, so every IGT test relying on the CRCs can work on pipe A. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72864 Testcase: igt/kms_cursor_crc (and others) Signed-off-by:
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Paulo Zanoni authored
In its current place, it just segfaults while trying to access the CRTC structures: [ 9132.421681] Call Trace: [ 9132.421707] [<ffffffffa01130d8>] i915_get_crtc_scanoutpos+0x1e8/0x220 [i915] [ 9132.421727] [<ffffffffa001da34>] drm_calc_vbltimestamp_from_scanoutpos+0x94/0x330 [drm] [ 9132.421744] [<ffffffffa001d240>] ?vblank_disable_and_save+0x40/0x1e0 [drm] [ 9132.421769] [<ffffffffa0114328>] i915_get_vblank_timestamp+0x68/0xb0 [i915] [ 9132.421786] [<ffffffffa001d094>] drm_get_last_vbltimestamp+0x44/0x80 [drm] [ 9132.421801] [<ffffffffa001d3a6>] vblank_disable_and_save+0x1a6/0x1e0 [drm] [ 9132.421817] [<ffffffffa001eac1>] drm_vblank_cleanup+0x61/0xa0 [drm] [ 9132.421849] [<ffffffffa0177a5e>] i915_driver_unload+0xde/0x290 [i915] [ 9132.421867] [<ffffffffa0020264>] drm_dev_unregister+0x24/0xb0 [drm] [ 9132.421884] [<ffffffffa002090e>] drm_put_dev+0x1e/0x70 [drm] [ 9132.421901] [<ffffffffa00e01e0>] i915_pci_remove+0x10/0x20 [i915] [ 9132.421910] [<ffffffff81347556>] pci_device_remove+0x36/0xb0 [ 9132.421920] [<ffffffff8140084a>] __device_release_driver+0x7a/0xf0 [ 9132.421928] [<ffffffff81400fc8>] driver_detach+0xb8/0xc0 [ 9132.421936] [<ffffffff8140054a>] bus_remove_driver+0x4a/0xb0 [ 9132.421944] [<ffffffff81401717>] driver_unregister+0x27/0x50 [ 9132.421953] [<ffffffff81346f65>] pci_unregister_driver+0x25/0x70 [ 9132.421971] [<ffffffffa00229c8>] drm_pci_exit+0x78/0xa0 [drm] [ 9132.422000] [<ffffffffa017a6d2>] i915_exit+0x20/0x94e [i915] [ 9132.422009] [<ffffffff810fb9dc>] SyS_delete_module+0x13c/0x1f0 [ 9132.422019] [<ffffffff8131c5fb>] ? trace_hardirqs_on_thunk+0x3a/0x3f [ 9132.422028] [<ffffffff816f7792>] system_call_fastpath+0x16/0x1b This means it has to be before intel_modeset_cleanup, which cleans the CRTC structures. But if we move it to before intel_fbdev_fini(), we get WARNs because intel_fbdev_fini() still tries to use the vblanks, so the only acceptable point for drm_vblank_cleanup() seems to be this place. Related commit: commit cbb47d17 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Mon Sep 23 17:33:20 2013 -0300 drm/i915: Add some missing steps to i915_driver_load error path Testsuite: igt/drv_module_reload Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77511 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=83484Signed-off-by: -
Jani Nikula authored
SPT is always in the PCH override mode, and the bit MBZ. Only set override on LPT. v2: check for PCH version (Ville) Signed-off-by:
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Jesse Barnes authored
Some machines (like MBAs) might use a tiled framebuffer but not enable display swizzling at boot time. We want to preserve that configuration if possible to prevent a boot time mode set. On IVB+ it shouldn't affect performance anyway since the memory controller does internal swizzling anyway. For most other configs we'll be able to enable swizzling at boot time, since the initial framebuffer won't be tiled, thus we won't see any corruption when we enable it. v2: preserve swizzling if BIOS had it set (Daniel) v3: preserve swizzling only if we inherited a tiled framebuffer (Daniel) check display swizzle setting in detect_bit_6_swizzle (Daniel) use gen6 as cutoff point (Daniel) v4: fixup swizzle preserve again, had wrong init order (Daniel) Reported-by:Kristian Høgsberg <hoegsberg@gmail.com> Signed-off-by:
Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by:
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Imre Deak authored
During S4 freeze we don't call intel_suspend_complete(), which would save the gunit HW state, but during S4 thaw/restore events we call intel_resume_prepare() which restores it, thus ending up in a corrupted HW state. Fix this by calling intel_suspend_complete() from the corresponding freeze_late event handler. The issue was introduced in commit 016970be Author: Sagar Kamble <sagar.a.kamble@intel.com> Date: Wed Aug 13 23:07:06 2014 +0530 CC: Sagar Kamble <sagar.a.kamble@intel.com> Signed-off-by:
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Mika Kuoppala authored
As the workaround list has the value as initialization time constant, we can do the simple checking on the go without negleting igt. Signed-off-by:
Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by:
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Mika Kuoppala authored
If we build the workaround list in ring initialization and decouple it from the actual writing of values, we gain the ability to decide where and how we want to apply the values. The advantage of this will become more clear when we need to initialize workarounds on older gens where it is not possible to write all the registers through ring LRIs. v2: rebase on newest bdw workarounds Cc: Arun Siluvery <arun.siluvery@linux.intel.com> Cc: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by:
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Jani Nikula authored
The whole file is only built with CONFIG_COMPAT=y. Signed-off-by:
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Imre Deak authored
The legacy DRM suspend logic (effective in UMS) doesn't handle any S4 thaw events so we don't need to care about it either. Only S3 suspend and S4 freeze events are handled. Leave an assert behind to be sure. Signed-off-by:
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Ander Conselvan de Oliveira authored
For consistency, since that's the rule followed for internal functions. Signed-off-by:
Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by:
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Ander Conselvan de Oliveira authored
For consistency, since that's the rule followed for internal functions. Signed-off-by:
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Ander Conselvan de Oliveira authored
For consistency, since that's the rule followed for internal functions. Signed-off-by:
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Ander Conselvan de Oliveira authored
In the ironlake mode set code, there was two instances of a loop through encoders to find out if one of them has INTEL_OUTPUT_LVDS type. Simplify the code by deleting some lines and use intel_pipe_has_type() instead. Signed-off-by:
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Daniel Vetter authored
Too many new drm driver writers seem to look at i915 for inspiration. But we have two ways to do mmap, so discourage readers from the old, ugly version. In a new driver we'd just expose two mmap offsets per object, one for the gtt map and the other for the cpu map. v2: Make it clear that i915 does cpu mmaps this way for past cluelessness^W^W historical reasons. Asked for by Jani. Cc: "Cheng, Yao" <yao.cheng@intel.com> Cc: David Herrmann <dh.herrmann@gmail.com> Reviewed-by:
David Herrmann <dh.herrmann@gmail.com> Signed-off-by:
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Rodrigo Vivi authored
Let's clean this a bit v2: Rebase after other Mika's patch that removed some BDW production workarounds. v3: Removed stepping info. Reviewed-by:
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Chris Wilson authored
Just a couple more macros that assume that they were being passed a struct drm_device when they want a struct drm_i915_private. Use our magic macro to ease transitioning over to using drm_i915_privates Signed-off-by:
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Sonika Jindal authored
Add support for 180 degree rotation for primary and sprite planes Signed-off-by:
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Chris Wilson authored
If we are not able to free anything (the shrinker leaves nothing on the global object lists), do not log anything. This is useful when other subsystems are being stress-tested for their oom behaviour and i915.ko is shouting into the logs about doing nothing. Reported-by:
Dave Jones <davej@redhat.com> Signed-off-by:
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