- 16 Dec, 2019 1 commit
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Hans de Goede authored
According to both the old acpi_igd_opregion_spec_0.pdf and the newer skl_opregion_rev0p5.pdf opregion specification documents, if a driver handles hotplug events itself, it should set the opregion CHPD field to 1 to indicate this and the firmware should respond to this by no longer sending ACPI 0x00 notification events on e.g. lid-state changes. Specifically skl_opregion_rev0p5.pdf states thid in the documentation of the CHPD word: "Re-enumeration trigger logic in System BIOS MUST be disabled for all the Operating Systems supporting Hot-Plug (e.g., Windows* Longhorn and above)." Note the MUST in there. We ignore these notifications, so this should not be a problem but many recent DSTDs seem to all have the same copy-pasted bug in the GNOT() AML function which is used to send these notifications. Windows likely does not hit this bug as it presumably correcty sets CHPD to 1. Here is an example of the broken GNOT() method: Method (GNOT, 2, NotSerialized) { ... CEVT = Arg0 CSTS = 0x03 If (((CHPD == Zero) && (Arg1 == Zero))) { If (((OSYS > 0x07D0) || (OSYS < 0x07D6))) { Notify (PCI0, Arg1) } Else { Notify (GFX0, Arg1) } } ... Notice that the condition for the If is always true I believe that the || like needs to be an &&, but there is nothing we can do about this and in my own DSDT archive 55 of the 93 DSDTs have this issue. When the if is true the notification gets send to the PCI root instead of only to the GFX0 device. This causes Linux to re-enumerate PCI devices whenever the LID opens / closes, leading to unexpected messages in dmesg: Suspend through lid close: [ 313.598199] intel_atomisp2_pm 0000:00:03.0: Refused to change power state, currently in D3 [ 313.664453] intel_atomisp2_pm 0000:00:03.0: Refused to change power state, currently in D3 [ 313.737982] pci_bus 0000:01: Allocating resources [ 313.738036] pcieport 0000:00:1c.0: bridge window [io 0x1000-0x0fff] to [bus 01] add_size 1000 [ 313.738051] pcieport 0000:00:1c.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000 [ 313.738111] pcieport 0000:00:1c.0: BAR 15: assigned [mem 0x91000000-0x911fffff 64bit pref] [ 313.738128] pcieport 0000:00:1c.0: BAR 13: assigned [io 0x1000-0x1fff] Resume: [ 813.623894] pci 0000:00:03.0: [8086:22b8] type 00 class 0x048000 [ 813.623955] pci 0000:00:03.0: reg 0x10: [mem 0x00000000-0x003fffff] [ 813.630477] pci 0000:00:03.0: BAR 0: assigned [mem 0x91c00000-0x91ffffff] [ 854.579101] intel_atomisp2_pm 0000:00:03.0: Refused to change power state, currently in D3 And more importantly this re-enumeration races with suspend/resume causing enumeration to not be complete when assert_isp_power_gated() from drivers/gpu/drm/i915/display/intel_display_power.c runs. This causes the !pci_dev_present(isp_ids) check in assert_isp_power_gated() to fail making the condition for the WARN true, leading to: [ 813.327886] ------------[ cut here ]------------ [ 813.327898] ISP not power gated [ 813.328028] WARNING: CPU: 2 PID: 2317 at drivers/gpu/drm/i915/display/intel_display_power.c:4870 intel_display_print_error_state+0x2b98/0x3a80 [i915] ... [ 813.328599] ---[ end trace f01e81b599596774 ]--- This commit fixes the unwanted ACPI notification on the PCI root device by setting CHPD to 1, so that the broken if condition in the AML never gets checked as notifications of type 0x00 are disabled altogether. Reviewed-by:Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191212204828.191288-1-hdegoede@redhat.com
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- 14 Dec, 2019 1 commit
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Chris Wilson authored
Wait for the object to be idle before changing its cache-level and unbinding. This was dropped as supposedly superfluous from commit 8b1c78e0 ("drm/i915: Avoid calling i915_gem_object_unbind holding object lock"), but it turns out to prevent some cache dirt escaping. Smells like papering over a race... Closes: https://gitlab.freedesktop.org/drm/intel/issues/820 Fixes: 8b1c78e0 ("drm/i915: Avoid calling i915_gem_object_unbind holding object lock") Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Andi Shyti <andi.shyti@intel.com> Acked-by:
Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191213223140.1830738-1-chris@chris-wilson.co.uk
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- 13 Dec, 2019 11 commits
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Jani Nikula authored
Commit 4d89adc7 ("drm/i915/display/dsi: Add support to pipe D") added pipe D support for DSI, but failed to update the state readout. Fixes: 4d89adc7 ("drm/i915/display/dsi: Add support to pipe D") Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
José Roberto de Souza <jose.souza@intel.com> Signed-off-by:
Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191211110844.2996-1-jani.nikula@intel.com
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Lucas De Marchi authored
Just like in commit 523e0cc8 ("drm/i915/tgl: allow DVI/HDMI on port A"), the port checks when reading the VBT can easily not match what the platform really exposes. However here we only have some additional debug messages that are not adding much value: in the previous debug message we already print everything we know about the VBT. Instead of keep fixing the possible port assignments according to the platform, just nuke the additional messages. Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Acked-by:
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Andi Shyti authored
Add two helpers that for reading the actual GT's frequency. The two helpers are: - intel_rps_read_cagf: reads the frequency and returns it not normalized - intel_rps_read_actual_frequency: provides the frequency in Hz. Use the above helpers in sysfs and debugfs. Signed-off-by:
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Chris Wilson authored
While not good behaviour, it is, however, established behaviour that we can punt EAGAIN to userspace if we need to retry the ioctl. When trying to acquire a mutex, prefer to use EAGAIN to propagate losing the race so that if it does end up back in userspace, we try again. Fixes: c81471f5 ("drm/i915: Copy across scheduler behaviour flags across submit fences") Closes: https://gitlab.freedesktop.org/drm/intel/issues/800Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191213160347.1789004-1-chris@chris-wilson.co.uk
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Venkata Sandeep Dhanalakota authored
New macros ENGINE_TRACE(), CE_TRACE(), RQ_TRACE() and GT_TRACE() are introduce to tag device name and engine name with contexts and requests tracing in i915. Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com> Reviewed-by:
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Venkata Sandeep Dhanalakota authored
We do not require to register the sysctl paths per instance, so making registration global. v2: make sysctl path register and unregister function driver specific (Tvrtko and Lucas). Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by: -
Matt Roper authored
Now that the combo PHY aux power well handlers are used exclusively on Icelake, we can drop a bunch of the extra tests. v2: Don't try to use intel_uncore_rmw for register updates yet; there's pending display uncore patches that need to land first. (Lucas) v3: Drop the combo phy assertion. It was backward before, but doesn't seem terribly necessary. I'm keeping the IS_ICELAKE assertion though since we often copy/paste/modify the power well tables when defining new platforms and it's too easy to cargo cult the ICL-specific handling to new platforms that shouldn't use it. (Lucas) v4: Fix build; forgot to commit all the changes. (CI) Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: -
Matt Roper authored
The TGL workaround database no longer shows Wa #1178 (or anything similar under different workaround names/numbers) so we should be able to drop it. In fact Swati just discovered that applying this workaround is the root cause of some power well enable failures we've been seeing in CI (gitlab issue 498). Once we stop applying this WA, TGL no longer utilizes any of the special handling provided by icl_combo_phy_aux_power_well_ops so we can just drop back to using the standard hsw-style power well ops instead. v3: Drop now-unused _TGL_AUX_ANAOVRD1_C definition too. (Lucas) Closes: https://gitlab.freedesktop.org/drm/intel/issues/498 Fixes: deea06b4 ("drm/i915/tgl: apply Display WA #1178 to fix type C dongles") Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Swati Sharma <swati2.sharma@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by:
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Matt Roper authored
Outputs C and D on EHL are combo PHY outputs and thus should not be using the same TC AUX power well handlers as ICL. And even though icl_combo_phy_aux_power_well_ops works okay for EHL/JSL combo PHYs none of its special handling is actually necessary for this platform: * EHL/JSL don't actually need to program PORT_CL_DW12 * Display WA #1178 does not apply to EHL/JSL Thus we can simply drop back to using our standard "hsw-style" power well ops for EHL AUX power wells. Bspec: 4301 Fixes: f722b8c1 ("drm/i915/ehl: All EHL ports are combo phys") Cc: Jose Souza <jose.souza@intel.com> Cc: Bob Paauwe <bob.j.paauwe@intel.com> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by:
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Dan Carpenter authored
We know that "err" is non-zero so there is no need to check. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
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Dan Carpenter authored
The "num_dtd" variable is the number of elements in the generic_dtd->dtd[] array so the > needs to be >= to prevent reading one element beyond the end of the array. Fixes: 33ef6d4f ("drm/i915/vbt: Handle generic DTD block") Reviewed-by:
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- 12 Dec, 2019 9 commits
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Ville Syrjälä authored
skl_commit_modeset_enables() is a bit of mess. Let's streamline it by simply tracking which pipes still need to be updated. As a bonus we get rid of the state->wm_results.dirty_pipes usage. v2: Rebase due to port sync Cc: José Roberto de Souza <jose.souza@intel.com> Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> #v1 Signed-off-by:
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Lee Shawn C authored
U series device need different DDI buffer setup for eDP and DP. If driver did not recognize ULT id proerply. The setting for H and S series would be used. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Cooper Chiou <cooper.chiou@intel.com> Signed-off-by:
Lee Shawn C <shawn.c.lee@intel.com> Signed-off-by:
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Lee Shawn C authored
commit 'a7b4deeb ("drm/i915/cml: Add CML PCI IDS)' introduced new PCI ID that CML support. But some PCI IDs were removed in BSpec for CML. This patch is used to eliminate the unsed ID. Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Cooper Chiou <cooper.chiou@intel.com> Signed-off-by:
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Chris Wilson authored
drivers/gpu/drm/i915/gt/intel_rps.c:1726:24: error: incompatible types in comparison expression (different address spaces): drivers/gpu/drm/i915/gt/intel_rps.c:1726:24: struct drm_i915_private [noderef] <asn:4> * drivers/gpu/drm/i915/gt/intel_rps.c:1726:24: struct drm_i915_private * Signed-off-by:
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Chris Wilson authored
Since dma_fence_init may call ops (because of a meaningless trace_dma_fence), we need to set the worker ops prior to that call. Reported-by:
Vince Weaver <vincent.weaver@maine.edu> Fixes: 8e458fe2 ("drm/i915: Generalise the clflush dma-worker") Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191212154224.1631531-1-chris@chris-wilson.co.uk
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Michal Wajdeczko authored
On non-debug builds we were not using i915 param and thus we may cause "unused variable" warning/error if caller was not using i915 elsewhere. Let compiler see this param. Signed-off-by:
Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
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Chris Wilson authored
Execute the cmdparser asynchronously as part of the submission pipeline. Using our dma-fences, we can schedule execution after an asynchronous piece of work, so we move the cmdparser out from under the struct_mutex inside execbuf as run it as part of the submission pipeline. The same security rules apply, we copy the user batch before validation and userspace cannot touch the validation shadow. The only caveat is that we will do request construction before we complete cmdparsing and so we cannot know the outcome of the validation step until later -- so the execbuf ioctl does not report -EINVAL directly, but we must cancel execution of the request and flag the error on the out-fence. Closes: https://gitlab.freedesktop.org/drm/intel/issues/611 Closes: https://gitlab.freedesktop.org/drm/intel/issues/412Signed-off-by:
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Chris Wilson authored
The gen7 cmdparser is primarily a promotion-based system to allow access to additional registers beyond the HW validation, and allows fallback to normal execution of the user batch buffer if valid and requires chaining. In the next patch, we will do the cmdparser validation in the pipeline asynchronously and so at the point of request construction we will not know if we want to execute the privileged and validated batch, or the original user batch. The solution employed here is to execute both batches, one with raised privileges and one as normal. This is because the gen7 MI_BATCH_BUFFER_START command cannot change privilege level within a batch and must strictly use the current privilege level (or undefined behaviour kills the GPU). So in order to execute the original batch, we need a second non-priviledged batch buffer chain from the ring, i.e. we need to emit two batches for each user batch. Inside the two batches we determine which one should actually execute, we provide a conditional trampoline to call the original batch. Implementation-wise, we create a single buffer and write the shadow and the trampoline inside it at different offsets; and bind the buffer into both the kernel GGTT for the privileged execution of the shadow and into the user ppGTT for the non-privileged execution of the trampoline and original batch. One buffer, two batches and two vma. Signed-off-by:
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Chris Wilson authored
An oversight in that we use rc6->ctl_enable to disable rc6 on gen9 and so it does not simply indicate indirect control via a PCU. Switch the rc6->ctl_enable check for a platform-based check. Fixes: 972745fd ("drm/i915/gt: Disable manual rc6 for Braswell/Baytrail") Signed-off-by:
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- 11 Dec, 2019 18 commits
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Chris Wilson authored
The movntqda requires 16-byte alignment for the source pointer. Avoid falling back to clflush if the source pointer is misaligned by doing the doing a small uncached memcpy to fixup the alignments. v2: Turn the unaligned copy into a genuine helper Signed-off-by:
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Chris Wilson authored
As the caller no longer uses the i915_vma result, stop returning it and just return the error code instead. Signed-off-by:
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Chris Wilson authored
We need to flush the destination buffer, even on error, to maintain consistent cache state. Thereby removing the jump on error past the clear, and reducing the loop-escape mechanism to a mere break. Signed-off-by:
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Chris Wilson authored
Declutter the calling interface by reducing the parameters to the i915_vma and associated offsets. Signed-off-by:
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Chris Wilson authored
The cmdparser rejection debug is not for driver development, but for the user, for which we use a plain DRM_DEBUG(). Signed-off-by:
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Chris Wilson authored
The initial investigated showed that while the PCU on Braswell/Baytrail controlled RC6 itself. setting the software RC6 request made no difference. Further testing reveals though that it causes a delay in the PCU on enabling RC6. Closes: https://gitlab.freedesktop.org/drm/intel/issues/763 Fixes: 730eaeb5 ("drm/i915/gt: Manual rc6 entry upon parking") Testcase: igt/perf/rc6-disable Signed-off-by:
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Michal Wajdeczko authored
There is no need to pass explicit ggtt since we already have a trick to get parent gt from uc_fw, we only need to use it. Signed-off-by:
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Michal Wajdeczko authored
There is no need to pass explicit gt since we already have a trick to get parent gt from uc_fw, we only need to use it. Signed-off-by:
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Michal Wajdeczko authored
There is no need to pass explicit i915 since we already have a debug trick to get parent gt from uc_fw, we only need to make this trick available on non-debug builds. Signed-off-by:
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Chris Wilson authored
Use the dev_name(i915) to identify the requests for debugging, so we can tell different device timelines apart. Signed-off-by:
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Colin Ian King authored
A prior check and return when pointer fb is null makes subsequent null checks on fb redundant. Remove the redundant null checks. Addresses-Coverity: ("Logically dead code") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
Pointer crtc_state is being assigned twice, one of these is redundant and can be removed. Addresses-Coverity: ("Evaluation order violation") Signed-off-by: -
Ville Syrjälä authored
In order to eliminate intel_pipe_to_cpu_transcoder() (and its crtc->config usage) let's pass the cpu transcoder to assert_pipe() so we don't have to do the pipe->cpu transcoder lookup on HSW+. On VLV/CHV this can get called during eDP init, which happens before crtc->config->cpu_transcoder is even populated. So currently we're always reading PIPECONF(A) there even if we're trying to check the state of some other pipe. Signed-off-by:
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Ville Syrjälä authored
Let's start to eliminate intel_pipe_to_cpu_transcoder() so that we can get rid of one more crtc->config usage (which we will want to nuke as well). In the case of assert_fdi_tx() we know that we're never dealing with the EDP transcoder so we can simply replace this with a cast. v2: Fix poor English in comment Signed-off-by:
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Chris Wilson authored
Print the i915_active state on selftest failure, with a hope it helps illuminate the cause of the failure. References: https://gitlab.freedesktop.org/drm/intel/issues/765Signed-off-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210115502.3767070-1-chris@chris-wilson.co.uk
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Chris Wilson authored
When we are told we have to drop all references to userptr, wait for any barriers required for unbinding. <4> [2055.808787] WARNING: CPU: 3 PID: 6239 at mm/mmu_notifier.c:472 __mmu_notifier_invalidate_range_start+0x1f2/0x250 <4> [2055.808792] Modules linked in: vgem mei_hdcp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel r8169 lpc_ich realtek i915 snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core pinctrl_broxton snd_pcm pinctrl_intel mei_me intel_lpss_pci mei prime_numbers [last unloaded: vgem] <4> [2055.808834] CPU: 3 PID: 6239 Comm: gem_userptr_bli Tainted: G U 5.5.0-rc1-CI-CI_DRM_7522+ #1 <4> [2055.808839] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0049.2018.0508.1356 05/08/2018 <4> [2055.808847] RIP: 0010:__mmu_notifier_invalidate_range_start+0x1f2/0x250 <4> [2055.808853] Code: c2 48 c7 c7 70 17 2e 82 44 89 45 d4 48 8b 70 28 e8 ec 01 ef ff 41 f6 46 20 01 44 8b 45 d4 75 0a 41 83 f8 f5 44 89 7d d4 74 89 <0f> 0b 44 89 45 d4 eb 81 0f 0b 49 8b 46 18 49 8b 76 10 4c 89 ff 48 <4> [2055.808858] RSP: 0018:ffffc90002937d40 EFLAGS: 00010202 <4> [2055.808865] RAX: 0000000000000061 RBX: ffff8882703a33e0 RCX: 0000000000000001 <4> [2055.808870] RDX: 0000000000000000 RSI: ffff888277da8cb8 RDI: 00000000ffffffff <4> [2055.808874] RBP: ffffc90002937d70 R08: 00000000fffffff5 R09: 0000000000000000 <4> [2055.808879] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 <4> [2055.808884] R13: ffffffff822e1716 R14: ffffc90002937d80 R15: 00000000fffffff5 <4> [2055.808890] FS: 00007fda75004e40(0000) GS:ffff888277d80000(0000) knlGS:0000000000000000 <4> [2055.808895] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [2055.808900] CR2: 000055ad72ec3000 CR3: 00000002697b2000 CR4: 00000000003406e0 <4> [2055.808904] Call Trace: <4> [2055.808920] unmap_vmas+0x13e/0x150 <4> [2055.808937] unmap_region+0xa3/0x100 <4> [2055.808964] __do_munmap+0x26d/0x490 <4> [2055.808980] __vm_munmap+0x66/0xc0 <4> [2055.808994] __x64_sys_munmap+0x12/0x20 <4> [2055.809001] do_syscall_64+0x4f/0x220 Closes: https://gitlab.freedesktop.org/drm/intel/issues/771Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191210133719.3874455-1-chris@chris-wilson.co.uk
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Chris Wilson authored
Check that we own the global pointer before deregistering. Reported-by:
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Tvrtko Ursulin authored
Convert i915_gem_check_execbuffer to return the error code instead of a boolean so our neat EINVAL debugging trick works within this function. Signed-off-by:
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