- 09 Sep, 2016 4 commits
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Chris Wilson authored
Similar to the issue with reading from the context status buffer, see commit 26720ab9 ("drm/i915: Move CSB MMIO reads out of the execlists lock"), we frequently write to the ELSP register (4 writes per interrupt) and know we hold the required spinlock and forcewake throughout. We can further reduce the cost of writing these registers beyond the I915_WRITE_FW() by precomputing the address of the ELSP register. We also note that the subsequent read serves no purpose here, and are happy to see it go. v2: Address I915_WRITE mistakes in changelog text data bss dec hex filename 1259784 4581 576 1264941 134d2d drivers/gpu/drm/i915/i915.ko 1259720 4581 576 1264877 134ced drivers/gpu/drm/i915/i915.ko Saves 64 bytes of address recomputation. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-4-chris@chris-wilson.co.uk
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Chris Wilson authored
Rather than blindly assuming we need to advance the tail for resubmitting the request via the ELSP, record the position. Signed-off-by:
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Chris Wilson authored
Leave the more complicated request dequeueing to the tasklet and instead just kick start the tasklet if we detect we are adding the first request. v2: Play around with list operators until we agree upon something Signed-off-by:
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Chris Wilson authored
This is really a core kernel struct in disguise until we can finally place it in kernel/. There is an immediate need for a fence collection mechanism that is more flexible than fence-array, in particular being able to easily drive request submission via events (and not just interrupt driven). The same mechanism would be useful for handling nonblocking and asynchronous atomic modesets, parallel execution and more, but for the time being just create a local sw fence for execbuf. Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-1-chris@chris-wilson.co.uk
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- 07 Sep, 2016 30 commits
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Carlos Santa authored
Moving all GPU features to the platform definition allows for - standard place when adding new features from new platform - possible to see supported features when dumping struct definitions Signed-off-by:Carlos Santa <carlos.santa@intel.com> Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
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Carlos Santa authored
Make the .hws_needs_physical the exception by switching the flag on earlier platforms since they are fewer to support. Remove the flag on later GPUs hardware since they all use GTT hws by default. Switch the logic as well in the driver to reflect this change Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by: -
Carlos Santa authored
Moving all GPU features to the platform definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by: -
Carlos Santa authored
Moving all GPU features to the platform definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by: -
Carlos Santa authored
Moving all GPU features to the platform definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Introducing a GEN2_FEATURES macro to simplify the struct definitions by platforms given that most of the features are common. Inspired by the GEN7_FEATURES macro done by Ben W. and others. Use it for 830, 845g, i85x, i865g. CC: Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Carlos Santa authored
Introducing a GEN3_FEATURES macro to simplify the struct definitions by platforms given that most of the features are common. Inspired by the GEN7_FEATURES macro done by Ben W. and others. Use it for i915g, i915gm, i945g, i945gm, g33 and pnv. CC: Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Carlos Santa authored
Introducing a GEN4_FEATURES macro to simplify the struct definitions by platforms given that most of the features are common. Inspired by the GEN7_FEATURES macro done by Ben W. and others. Use it for i965g, i965gm, g45 and gm45. CC: Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Introducing a GEN5_FEATURES macro to simplify the struct definitions by platforms given that most of the features are common. Inspired by the GEN7_FEATURES macro done by Ben W. and others. Use it for ilk. CC: Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by: -
Carlos Santa authored
No need for HAS_CORE_RING_FREQ as that flag is actually the same as .has_llc. Feedback from V. Syrjala. Signed-off-by:
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Carlos Santa authored
Remove runtime PM support for SNB as it breaks hotplug support. Feedback from V. Syrjala. Signed-off-by:
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Carlos Santa authored
Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definitions Signed-off-by:
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Carlos Santa authored
Introducing a GEN6_FEAUTRES macro to simplify the struct definitions by platforms given that most of the features are common. Inspired by the GEN7_FEATURES macro done by Ben W. and others. Use it for snb. CC: Ben Widawsky <ben@bwidawsk.net> Signed-off-by:
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Carlos Santa authored
As recommended by Ville Syrjala removing .is_mobile field from the platform struct definition for vlv and hsw+ GPUs as there's no need to make the distinction in later hardware anymore. Keep it for older GPUs as it is still needed for ilk-ivb. Signed-off-by:
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Carlos Santa authored
[patch series] Moving all GPU features to the platform struct definition allows for - standard place when adding new features from new platforms - possible to see supported features when dumping struct definition Signed-off-by:
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Manasi Navare authored
Split out the DisplayPort and HDMI pll setup code into separate functions and refactor the DP code that calculates the pll so that it doesn't depend on crtc state. This will be used for acquiring port pll when doing upfront link training. Reviewed-by:
Durgadoss R <durgadoss.r@intel.com> Signed-off-by:
Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Jim Bride authored
Split out the DisplayPort and HDMI pll setup code into separate functions and refactor the DP code does not directly depend on crtc state, so that the code can be used for upfront link training. Reviewed-by:
Jim Bride <jim.bride@linux.intel.com> Signed-off-by:
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Durgadoss R authored
Split out of bxt_ddi_pll_select() the logic that calculates the pll dividers and dpll_hw_state into a new function that doesn't depend on crtc state. This will be used for enabling the port pll when doing upfront link training. v2: * Refactored code so that bxt_clk_div need not be exported (Durga) v1: * Rebased on top of intel_dpll_mgr.c (Durga) * Initial version from Ander on top of intel_ddi.c Reviewed-by:
Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by:
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Manasi Navare authored
Split intel_ddi_pre_enable() into encoder type specific versions that don't depend on crtc_state. The necessary parameters are passed as function arguments. This split will be necessary for implementing DP upfront link training. v3: * Rebased onto latest kernel (Manasi) v2: * Rebased onto kernel v4.7 (Jim) Reviewed-by:
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Ander Conselvan de Oliveira authored
The value of ddi_pll_sel is derived from the selection of shared dpll, so just calculate the final value when necessary. v2: Actually remove it from crtc state and delete remaining usages. (CI) Reviewed-by:
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Ander Conselvan de Oliveira authored
Decouple intel_dp_set_link_params() from struct intel_crtc_state. This will be useful for implementing DP upfront link training. v2: * Rebased on atomic state changes (Manasi) Reviewed-by:
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David Weinehall authored
This reverts commit 237ed86c. Our current implementation of live status check (repeat 9 times with 10ms delays between each attempt as a workaround for buggy displays) imposes a rather serious penalty, time wise, on intel_hdmi_detect(). Since we we already skip live status checks on platforms before gen 7, and since we seem to have coped quite well before the live status check was introduced for newer platforms too, the previous behaviour is probably preferable, at least unless someone can point to a use-case that the live status check improves (apart from "Bspec says so".) Signed-off-by:
David Weinehall <david.weinehall@linux.intel.com> Fixes: 237ed86c ("drm/i915: Check live status before reading edid") Fixes: f8d03ea0 ("drm/i915: increase the tries for HDMI hotplug live status checking") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97139 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94014Acked-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160817124748.31208-1-david.weinehall@linux.intel.com
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Lyude authored
i915 sometimes needs to disable planes in the middle of an atomic commit, and then reenable them later in the same commit. Because of this, we can't make the assumption that the state of the plane actually changed. Since the state of the plane hasn't actually changed, neither have it's watermarks. And if the watermarks hasn't changed then we haven't populated skl_results with anything, which means we'll end up zeroing out a plane's watermarks in the middle of the atomic commit without restoring them later. Simple reproduction recipe: - Get a SKL laptop, launch any kind of X session - Get two extra monitors - Keep hotplugging both displays (so that the display configuration jumps from 1 active pipe to 3 active pipes and back) - Eventually underrun Changes since v1: - Fix incorrect use of "it's" Changes since v2: - Add reproduction recipe Signed-off-by:
Lyude <cpaul@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: 62e0fb88 ("drm/i915/skl: Update plane watermarks atomically during plane updates") Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1472488288-27280-1-git-send-email-cpaul@redhat.com Cc: drm-intel-fixes@lists.freedesktop.org
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- 06 Sep, 2016 4 commits
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Chris Wilson authored
We don't have safe 64-bit mmio writes as they are really split into 2x32-bit writes. This tearing is dangerous as the hardware *will* operate on the intermediate value, requiring great care when assigning. (See, for example, i965_write_fence_reg.) As such we don't currently use them and strongly advise not to us them. Go one step further and remove the 64-bit write vfuncs. v2: Add some more details to the comment about why WRITE64 is absent, and why you need to think twice before using READ64. Signed-off-by:
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Zhi Wang authored
Disable 48bit full PPGTT on vGPU too for now. Signed-off-by:
Zhi Wang <zhi.a.wang@intel.com> Signed-off-by:
Zhenyu Wang <zhenyuw@linux.intel.com> Reviewed-by:
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Ping Gao authored
vGPU capability is handled by GVT-g host driver, not needed to put extra HW check for vGPU detection. And we'll actually support vGPU from BDW. Signed-off-by:
Ping Gao <ping.a.gao@intel.com> Signed-off-by:
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Chris Wilson authored
If we can't grab the breadcrumb's spinlock, possibly due to a driver deadlock inside the waiters, ignore them. Like hangcheck, error capturing must work no matter how the driver/GPU dies. Signed-off-by:
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- 05 Sep, 2016 2 commits
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Dave Gordon authored
Some downgraded from DRM_ERROR() to DRM_WARN() or DRM_NOTE(), a few upgraded from DRM_INFO() to DRM_NOTE() or DRM_WARN(), and one eliminated completely. v2: different permutation of levels :) v3: convert a couple of "this shouldn't happen" messages to WARN() Signed-off-by:
Dave Gordon <david.s.gordon@intel.com> Reviewed-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
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Dave Gordon authored
Where we're going to continue regardless of the problem, rather than fail, then the message should be a WARNing rather than an ERROR. Signed-off-by:
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