- 06 Feb, 2017 4 commits
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Chris Wilson authored
After resetting, show the requests that each engine restarts from in the debug log. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170204110519.7645-1-chris@chris-wilson.co.ukReviewed-by:
Mika Kuoppala <mika.kuoppala@intel.com>
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Chris Wilson authored
If we have any residual freed atomic state from earlier commits, flush the freed list after performing the current modeset. This prevents the freed list from ever-growing if userspace manages to starve the kernel threads (i.e. we are never able to run our free state worker and eventually the system may even oom). Fixes: eb955eee ("drm/i915: Move atomic state free from out of fence release") Testcase: igt/kms_cursor/legacy/all-pipes-single-bo Reported-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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Daniel Vetter authored
Signed-off-by:Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniele Ceraolo Spurio authored
The only difference for the more recent of those macros is the version of the *_reg_<read/write>_fw_domains function. Passing the function prefix in allows us to re-use the same macro to generate functions for different GENs and will make it easier to add new accessors in the future Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1486171409-21542-1-git-send-email-daniele.ceraolospurio@intel.comReviewed-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by:
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- 04 Feb, 2017 1 commit
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Daniele Ceraolo Spurio authored
Fences are creted/checked before the pm ref is taken, so if we jump to pre_mutex_err we will uncorrectly call intel_runtime_pm_put. v2: Massage unwind error paths Fixes: fec0445c (drm/i915: Support explicit fencing for execbuf) Testcase: igt/gem_exec_params Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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- 03 Feb, 2017 6 commits
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Chris Wilson authored
We now have partial VMA support to break large objects into fence sized regions and no longer have to restrict tiling to small objects on gen2/3 Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Chris Wilson authored
The current tail breaks the pattern of if (check) return false, which can catch the reader out. If we move the gen2/3 power-of-two test into the earlier gen2/3 branch, we can eliminate the contrary tail. Suggested-by:
Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by:
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Chris Wilson authored
In commit 957870f9 ("drm/i915: Split out i915_gem_object_set_tiling()"), I swapped an alignment check for IS_ALIGNED and in the process removed the less-than check. That check turns out to be important as it was the only rejection for stride == 0. Tvrtko did spot it, but I was overconfident in the IS_ALIGNED() conversion. Fixes: 957870f9 ("drm/i915: Split out i915_gem_object_set_tiling()") Testcase: igt/gem_tiling_max_stride Signed-off-by:
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Lee, Shawn C authored
Add the missing INTEL_OUTPUT_DP_MST case in bxt_get_dpll() to correctly initialize the crtc_state and port plls when link training a DP MST monitor on BXT/APL devices. Fixes: a277ca7d ("drm/i915: Split bxt_ddi_pll_select()") Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=99572Reviewed-by:
Cooper Chiou <cooper.chiou@intel.com> Reviewed-by:
Gary C Wang <gary.c.wang@intel.com> Reviewed-by:
Ciobanu, Nathan D <nathan.d.ciobanu@intel.com> Reviewed-by:
Herbert, Marc <marc.herbert@intel.com> Reviewed-by:
Bride, Jim <jim.bride@intel.com> Reviewed-by:
Navare, Manasi D <manasi.d.navare@intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: <stable@vger.kernel.org> # v4.9+ Signed-off-by:
Lee, Shawn C <shawn.c.lee@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1486096329-6255-1-git-send-email-shawn.c.lee@intel.com
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Matthew Auld authored
Now that we have selftests in place exercising truly huge allocations we will start to hit the 512GB warning, so now seems like a good time to remove this user-triggerable WARN. Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1486047300-13198-1-git-send-email-matthew.auld@intel.comReviewed-by:
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Chris Wilson authored
If we fail to dma-map the object, the most common cause is lack of space inside the SW-IOTLB due to fragmentation. If we recreate the_sg_table using segments of PAGE_SIZE (and single page allocations), we may succeed in remapping the scatterlist. First became a significant problem for the mock selftests after commit 5584f1b1 ("drm/i915: fix i915 running as dom0 under Xen") increased the max_order. Fixes: 920cf419 ("drm/i915: Introduce an internal allocator for disposable private objects") Fixes: 5584f1b1 ("drm/i915: fix i915 running as dom0 under Xen") Signed-off-by:
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- 02 Feb, 2017 3 commits
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Jani Nikula authored
Apparently there are machines out there with Skylake CPU and KabyPoint PCH. Judging from our driver code, there doesn't seem to be any code paths that would do anything different between SunrisePoint and KabyPoint PCHs, so it would seem okay to accept the combo without warnings. Fixes: 22dea0be ("drm/i915: Introduce Kabypoint PCH for Kabylake H/DT.") References: https://lists.freedesktop.org/archives/intel-gfx/2017-February/118611.htmlReported-by:
Rainer Koenig <Rainer.Koenig@ts.fujitsu.com> Cc: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: <stable@vger.kernel.org> # v4.8+ Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
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Chris Wilson authored
Build the struct drm_mm selftests so that we can trivially run them within our CI. "Enable debug, become developer." - Joonas Lahtinen Signed-off-by:
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Juergen Gross authored
Commit 920cf419 ("drm/i915: Introduce an internal allocator for disposable private objects") introduced a regression for the kernel running as Xen dom0: when switching to graphics mode a GPU HANG occurred. Reason seems to be a missing adaption similar to that done in commit 7453c549 ("swiotlb: Export swiotlb_max_segment to users") to i915_gem_object_get_pages_internal(). So limit the maximum page order to be used according to the maximum swiotlb segment size instead to the complete swiotlb size. Fixes: 920cf419 ("drm/i915: Introduce an internal allocator for disposable private objects") Signed-off-by:
Juergen Gross <jgross@suse.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170202094711.939-1-jgross@suse.com Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+ Reviewed-by:
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- 01 Feb, 2017 7 commits
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Maarten Lankhorst authored
If the crtc was brought up with audio before the driver loads, then crtc_disable will remove a refcount to audio that doesn't exist before. Fortunately we already set power domains on readout, so we can just add the power domain handling to get_crtc_power_domains, which will update the power domains correctly in all cases. This was found when testing module reload on CI with the crtc enabled, which resulted in the following warn after module reload + modeset: [ 24.197041] ------------[ cut here ]------------ [ 24.197075] WARNING: CPU: 0 PID: 99 at drivers/gpu/drm/i915/intel_runtime_pm.c:1790 intel_display_power_put+0x134/0x140 [i915] [ 24.197076] Use count on domain AUDIO is already zero [ 24.197098] CPU: 0 PID: 99 Comm: kworker/u8:2 Not tainted 4.9.0-CI-Trybot_393+ #1 [ 24.197099] Hardware name: /NUC6i5SYB, BIOS SYSKLi35.86A.0042.2016.0409.1246 04/09/2016 [ 24.197102] Workqueue: events_unbound async_run_entry_fn [ 24.197105] ffffc900003c7688 ffffffff81435b35 ffffc900003c76d8 0000000000000000 [ 24.197107] ffffc900003c76c8 ffffffff8107e4d6 000006fe5dc36f28 ffff88025dc30054 [ 24.197109] ffff88025dc36f28 ffff88025dc30000 ffff88025dc30000 0000000000000015 [ 24.197110] Call Trace: [ 24.197113] [<ffffffff81435b35>] dump_stack+0x67/0x92 [ 24.197116] [<ffffffff8107e4d6>] __warn+0xc6/0xe0 [ 24.197118] [<ffffffff8107e53a>] warn_slowpath_fmt+0x4a/0x50 [ 24.197149] [<ffffffffa039b4b4>] intel_display_power_put+0x134/0x140 [i915] [ 24.197187] [<ffffffffa04217dd>] intel_disable_ddi+0x4d/0x80 [i915] [ 24.197223] [<ffffffffa03f388f>] intel_encoders_disable.isra.74+0x7f/0x90 [i915] [ 24.197257] [<ffffffffa03f6c05>] haswell_crtc_disable+0x55/0x170 [i915] [ 24.197292] [<ffffffffa03fec88>] intel_atomic_commit_tail+0x108/0xfd0 [i915] [ 24.197295] [<ffffffff810d47c6>] ? __lock_is_held+0x66/0x90 [ 24.197330] [<ffffffffa03fff79>] intel_atomic_commit+0x429/0x560 [i915] [ 24.197332] [<ffffffff81570186>] ?drm_atomic_add_affected_connectors+0x56/0xf0 [ 24.197334] [<ffffffff8156f726>] drm_atomic_commit+0x46/0x50 [ 24.197336] [<ffffffff81553f87>] restore_fbdev_mode+0x147/0x270 [ 24.197337] [<ffffffff81555bee>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70 [ 24.197339] [<ffffffff81555aa8>] drm_fb_helper_set_par+0x28/0x50 [ 24.197374] [<ffffffffa041c7d3>] intel_fbdev_set_par+0x13/0x70 [i915] [ 24.197376] [<ffffffff8149e07a>] fbcon_init+0x57a/0x600 [ 24.197379] [<ffffffff81514b71>] visual_init+0xd1/0x130 [ 24.197381] [<ffffffff8151603c>] do_bind_con_driver+0x1bc/0x3a0 [ 24.197384] [<ffffffff81516521>] do_take_over_console+0x111/0x180 [ 24.197386] [<ffffffff8149e152>] do_fbcon_takeover+0x52/0xb0 [ 24.197387] [<ffffffff814a12c3>] fbcon_event_notify+0x723/0x850 [ 24.197390] [<ffffffff810a4830>] ?__blocking_notifier_call_chain+0x30/0x70 [ 24.197392] [<ffffffff810a44a4>] notifier_call_chain+0x34/0xa0 [ 24.197394] [<ffffffff810a4848>] __blocking_notifier_call_chain+0x48/0x70 [ 24.197397] [<ffffffff810a4881>] blocking_notifier_call_chain+0x11/0x20 [ 24.197398] [<ffffffff814a4556>] fb_notifier_call_chain+0x16/0x20 [ 24.197400] [<ffffffff814a678c>] register_framebuffer+0x24c/0x330 [ 24.197402] [<ffffffff815558d9>] drm_fb_helper_initial_config+0x219/0x3c0 [ 24.197436] [<ffffffffa041d373>] intel_fbdev_initial_config+0x13/0x30 [i915] [ 24.197438] [<ffffffff810a5d44>] async_run_entry_fn+0x34/0x140 [ 24.197440] [<ffffffff8109c26c>] process_one_work+0x1ec/0x6b0 [ 24.197442] [<ffffffff8109c1e6>] ? process_one_work+0x166/0x6b0 [ 24.197445] [<ffffffff8109c779>] worker_thread+0x49/0x490 [ 24.197447] [<ffffffff8109c730>] ? process_one_work+0x6b0/0x6b0 [ 24.197448] [<ffffffff810a2a9b>] kthread+0xeb/0x110 [ 24.197451] [<ffffffff810a29b0>] ? kthread_park+0x60/0x60 [ 24.197453] [<ffffffff818241a7>] ret_from_fork+0x27/0x40 [ 24.197476] ---[ end trace bda64b683b8e8162 ]--- Signed-off-by:
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Maarten Lankhorst authored
We may keep the crtc's enabled when userspace unsets all framebuffers but keeps the crtc active. This exposes a WARN in fbc_global disable, and a lot of bugs in our hardware readout code. Solve this by disabling all crtc's for now. Changes since v1: - Use lock_all_ctx instead of lock_all. Signed-off-by:
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Chris Wilson authored
Primarily this serves as a sanity check that the bit has been cleared before we suspend (and hasn't reappeared after resume). Signed-off-by:
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Chris Wilson authored
As we now flag when the GPU signals a context-switch and do not read the status register before we see that signal, we do not have to ensure that it is cleared upon reset (and can leave it to the GPU to reset it from the power context). Signed-off-by:
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Uma Shankar authored
Enable MIPI IO WA for BXT DSI as per bspec and program the DSI regulators. v2: Moved IO enable to pre-enable as per Mika's review comments. Also reused the existing register definition for BXT_P_CR_GT_DISP_PWRON. v3: Added Programming the DSI regulators as per disable/enable sequences. v4: Restricting regulator changes to BXT as suggested by Jani/Mika v5: Removed redundant read/modify for regulator register as per Jani's comment. Maintain enable/disable symmetry as per spec. Signed-off-by:
Uma Shankar <uma.shankar@intel.com> Signed-off-by:
Vidya Srinivas <vidya.srinivas@intel.com> Acked-by:
Mika Kahola <mika.kahola@intel.com> Reviewed-by:
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Chris Wilson authored
On a non-llc system, the objects are created with .cache_level = CACHE_NONE and so the transition to uncached for scanout is a no-op. However, if the object was never written to, it will still be in the CPU domain (having been zeroed out by shmemfs). Those cachelines need to be flushed prior to display. Reported-and-tested-by: Vito Caputo Fixes: a6a7cc4b ("drm/i915: Always flush the dirty CPU cache when pinning the scanout") Signed-off-by:
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Daniel Vetter authored
Chris Wilson wants the new fence tracepoint added in commit 8c96c678 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Jan 24 11:57:58 2017 +0000 dma/fence: Export enable-signaling tracepoint for emission by drivers Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com>
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- 31 Jan, 2017 18 commits
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Dave Airlie authored
Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next adding runtime PM support to MIC driver, and including some cleanups - especially using atomic helper functions instead of specific ones - and fixups. * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: g2d: prevent integer overflow in drm/exynos: fix a timeout loop drm/exynos: use atomic helper commit drm/exynos: remove unnecessary codes drm/exynos: mic: Add runtime PM support drm/exynos: Stop using drm_framebuffer_unregister_private drm/exynos: mic: Fix parse_dt function drm/exynos: mic: Add mode_set callback function
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Dave Airlie authored
Merge tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next Allwinner DRM changes for 4.11 Just one minor fix. * tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: drm/sun4i: Fix a return value in case of error
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git://people.freedesktop.org/~syeh/repos_linuxDave Airlie authored
This is to address what we've discussed, moving some of the minor changes into a drm-next request. * 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux: drm/vmwgfx: Use kmemdup instead of kmalloc and memcpy drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format drm/vmwgfx: Fix a potential integer overflow drm/vmwgfx: Clear an uninitialized struct member drm/vmwgfx: Annotate ignored return values drm/vmwgfx: Clear uninitialized fields of a parameter
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
This is the main feature pull for radeon and amdgpu for 4.11. Highlights: - Power and clockgating improvements - Preliminary SR-IOV support - ttm buffer priority support - ttm eviction fixes - Removal of the ttm lru callbacks - Remove SI DPM quirks due to MC firmware issues - Handle VFCT with multiple vbioses - Powerplay improvements - Lots of driver cleanups * 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux: (120 commits) drm/amdgpu: fix amdgpu_bo_va_mapping flags drm/amdgpu: access stolen VRAM directly on CZ (v2) drm/amdgpu: access stolen VRAM directly on KV/KB (v2) drm/amdgpu: fix kernel panic when dpm disabled on Kv. drm/amdgpu: fix dpm bug on Kv. drm/amd/powerplay: fix regresstion issue can't set manual dpm mode. drm/amdgpu: handle vfct with multiple vbios images drm/radeon: handle vfct with multiple vbios images drm/amdgpu: move misc si headers into amdgpu drm/amdgpu: remove unused header si_reg.h drm/radeon: drop pitcairn dpm quirks drm/amdgpu: drop pitcairn dpm quirks drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache drm/amd/amdgpu/amdgpu_ttm: Handle return NULL error from ioremap_nocache drm/amdgpu: add new virtual display ID drm/amd/amdgpu: remove the uncessary parameter for ib scheduler drm/amdgpu: Bring bo creation in line with radeon driver (v2) drm/amd/powerplay: fix misspelling in header guard drm/ttm: revert "add optional LRU removal callback v2" drm/ttm: revert "implement LRU add callbacks v2" ...
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
Another round of -misc stuff: - Noralf debugfs cleanup cleanup (not yet everything, some more driver patches awaiting acks). - More doc work. - edid/infoframe fixes from Ville. - misc 1-patch fixes all over, as usual Noralf needs this for his tinydrm pull request. * tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits) drm/vc4: Remove vc4_debugfs_cleanup() dma/fence: Export enable-signaling tracepoint for emission by drivers drm/tilcdc: Remove tilcdc_debugfs_cleanup() drm/tegra: Remove tegra_debugfs_cleanup() drm/sti: Remove drm_debugfs_remove_files() calls drm/radeon: Remove drm_debugfs_remove_files() call drm/omap: Remove omap_debugfs_cleanup() drm/hdlcd: Remove hdlcd_debugfs_cleanup() drm/etnaviv: Remove etnaviv_debugfs_cleanup() drm/etnaviv: allow build with COMPILE_TEST drm/amd/amdgpu: Remove drm_debugfs_remove_files() call drm/prime: Clarify DMA-BUF/GEM Object lifetime drm/ttm: Make sure BOs being swapped out are cacheable drm/atomic: Remove drm_atomic_debugfs_cleanup() drm: drm_minor_register(): Clean up debugfs on failure drm: debugfs: Remove all files automatically on cleanup drm/fourcc: add vivante tiled layout format modifiers drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F drm/edid: Set AVI infoframe Q even when QS=0 drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range() ...
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Dave Airlie authored
Merge tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux into drm-next Contains a single patch to create the fbdev at driver's registration time instead of waiting for the connector status change. * tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux: drm/atmel-hlcdc: Rework the fbdev creation logic
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Dave Airlie authored
Merge tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next ZTE DRM driver updates for 4.11: - Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM driver uses drm_display_mode_to_videomode(). - Enable HDMI audio support through SPDIF interface based on generic hdmi-audio-codec driver. - Enable VOU VL (Video Layer) to support overlay plane with scaling function. - Refine zx_vou driver a bit and then add TV Encoder output device support. [airlied: fixup plane format change] * tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: drm: zte: add tvenc driver support dt: add bindings for ZTE tvenc device drm: zte: add function to configure vou_ctrl dividers drm: zte: move struct vou_inf into zx_vou driver drm: zte: add interlace mode support drm: zte: add overlay plane support drm: zte: add .atomic_disable hook to disable graphic layer drm: zte: make zx_plane accessible from zx_vou driver drm: zte: support hdmi audio through spdif drm: zte: select VIDEOMODE_HELPERS in Kconfig
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git://anongit.freedesktop.org/git/drm-intelDave Airlie authored
Updated pull request after I pulled first time :) * 'drm-intel-next' of git://anongit.freedesktop.org/git/drm-intel: drm/i915: Pevent copying uninitialised garbage into vma->ggtt_view
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git://linux-arm.org/linux-ldDave Airlie authored
Hope I'm not too late before the cutoff for the v4.11 with these patches. Mostly an asorted set of fixes that we have discovered while playing with the code and preparing for the next set of features. * 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld: drm: mali-dp: fix stride setting for multi-plane formats drm: mali-dp: Add plane offset to the plane's physical start address register drm: mali-dp: Check for sufficient address space drm: mali-dp: Check hw version matches device-tree drm: mali-dp: Rename malidp_input_format to malidp_pixel_format drm: mali-dp: fix Lx_CONTROL register fields clobber drm: mali-dp: Fix transposed horizontal/vertical flip drm: mali-dp: Fix destination size handling when rotating drm: mali-dp: Don't force source size == crtc size drm: mali-dp: Check more use cases in the plane's ->atomic_check() drm: malidp: Remove event_list member from struct malidp_drm drm/arm/malidp: Fix possible dereference of NULL
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Chris Wilson authored
Just do a quick check that the stolen memory address range doesn't overflow our chosen integer type. v2: Add add_overflows() to utils with the promise that gcc7 can do this better than C and then maybe it will have a proper definition in core. Signed-off-by:
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Chris Wilson authored
The conversion of stolen to use phys_addr_t (from essentially u32) sparked an interesting discussion. We treat stolen memory as only accessible from the GPU (the DMA device) - an attempt to use it from the CPU will generate a MCE on gen6 onwards, although it is in theory a physical address that can be dereferenced from the CPU as demonstrated by earlier generations. As such, using phys_addr_t has the wrong connotations and as we pass the address into the DMA device via dma_addr_t (through the scatterlists used to program the GTT entries), we should treat it as dma_addr_t throughout. Signed-off-by:
Paulo Zanoni <paulo.r.zanoni@intel.com>
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Chris Wilson authored
If we abort the i915_gem_internal get_pages, we mark the failing sg as the last. However, that means we iterate upto and including the failing sg element and results in us trying to free the unallocated sg_page(). Signed-off-by:
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Weinan Li authored
Having converted the force_wake_get/_put routines for a vGPU to be no-op, we can use the common mmio accessors and remove our specialised routines that simply skipped the calls to control force_wake. Signed-off-by:
Weinan Li <weinan.z.li@intel.com> Reviewed-by:
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Weinan Li authored
For a virtualized GPU, the host maintains the forcewake state on the real device. As we don't control forcewake ourselves, we can simply set force_wake_get() and force_wake_put() to be no-ops. By setting the vfuncs, we adjust both the manual control of forcewake and around the mmio accessors (making our vgpu specific mmio routines redundant and to be removed in the next patch). Signed-off-by:
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Chris Wilson authored
Include extra information such as the user_handle and hw_id so that userspace can identify which of their contexts hung, useful if they are performing self-diagnositics. Signed-off-by:
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Chris Wilson authored
Extend intel_detect_preproduction_hw() to include BXT A and B steppings. Signed-off-by:
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Chris Wilson authored
Preproduction sdv are not supported beyond the release of production hardware, and continued use is ill-advised. Mark the kernel as tainted to reinforce the error. Signed-off-by:
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Chris Wilson authored
As we add new generations, we should keep detecting new pre-production system development platforms that were temporarily enabled to facilitate initial development and now superseded by production systems. To make it easier to add more platforms, split the if into a series of logical operations. v2: s/sdv/pre/ - not all system development vehicles are for preproduction usage. Signed-off-by:
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- 30 Jan, 2017 1 commit
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Joonyoung Shim authored
The size computations done in the ioctl function use an integer. If userspace submits a request with req->cmd_nr or req->cmd_buf_nr set to INT_MAX, the integer computations overflow later, leading to potential (kernel) memory corruption. Prevent this issue by enforcing a limit on the number of submitted commands, so that we have enough headroom later for the size computations. Note that this change has no impact on the currently available users in userspace, like e.g. libdrm/exynos. While at it, also make a comment about the size computation more detailed. Signed-off-by:
Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by:
Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by:
Inki Dae <inki.dae@samsung.com>
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