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* Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2015-11-1072-3676/+8703
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm updates from Dave Airlie: "I Was Almost Tempted To Capitalise Every Word, but then I decided I couldn't read it myself! I've also got one pull request for the sti driver outstanding. It relied on a commit in Greg's tree and I didn't find out in time, that commit is in your tree now so I might send that along once this is merged. I also had the accidental misfortune to have access to a Skylake on my desk for a few days, and I've had to encourage Intel to try harder, which seems to be happening now. Here is the main drm-next pull request for 4.4. Highlights: New driver: vc4 driver for the Rasberry Pi VPU. (From Eric Anholt at Broadcom.) Core: Atomic fbdev support Atomic helpers for runtime pm dp/aux i2c STATUS_UPDATE handling struct_mutex usage cleanups. Generic of probing support. Documentation: Kerneldoc for VGA switcheroo code. Rename to gpu instead of drm to reflect scope. i915: Skylake GuC firmware fixes HPD A support VBT backlight fallbacks Fastboot by default for some systems FBC work BXT/SKL workarounds Skylake deeper sleep state fixes amdgpu: Enable GPU scheduler by default New atombios opcodes GPUVM debugging options Stoney support. Fencing cleanups. radeon: More efficient CS checking nouveau: gk20a instance memory handling improvements. Improved PGOB detection and GK107 support Kepler GDDR5 PLL statbility improvement G8x/GT2xx reclock improvements new userspace API compatiblity fixes. virtio-gpu: Add 3D support - qemu 2.5 has it merged for it's gtk backend. msm: Initial msm88896 (snapdragon 8200) exynos: HDMI cleanups Enable mixer driver byt default Add DECON-TV support vmwgfx: Move to using memremap + fixes. rcar-du: Add support for R8A7793/4 DU armada: Remove support for non-component mode Improved plane handling Power savings while in DPMS off. tda998x: Remove unused slave encoder support Use more HDMI helpers Fix EDID read handling dwhdmi: Interlace video mode support for ipu-v3/dw_hdmi Hotplug state fixes Audio driver integration imx: More color formats support. tegra: Minor fixes/improvements" [ Merge fixup: remove unused variable 'dev' that had all uses removed in commit 4e270f088011: "drm/gem: Drop struct_mutex requirement from drm_gem_mmap_obj" ] * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (764 commits) drm/vmwgfx: Relax irq locking somewhat drm/vmwgfx: Properly flush cursor updates and page-flips drm/i915/skl: disable display side power well support for now drm/i915: Extend DSL readout fix to BDW and SKL. drm/i915: Do graphics device reset under forcewake drm/i915: Skip fence installation for objects with rotated views (v4) vga_switcheroo: Drop client power state VGA_SWITCHEROO_INIT drm/amdgpu: group together common fence implementation drm/amdgpu: remove AMDGPU_FENCE_OWNER_MOVE drm/amdgpu: remove now unused fence functions drm/amdgpu: fix fence fallback check drm/amdgpu: fix stoping the scheduler timeout drm/amdgpu: cleanup on error in amdgpu_cs_ioctl() drm/i915: Fix locking around GuC firmware load drm/amdgpu: update Fiji's Golden setting drm/amdgpu: update Fiji's rev id drm/amdgpu: extract common code in vi_common_early_init drm/amd/scheduler: don't oops on failure to load drm/amdgpu: don't oops on failure to load (v2) drm/amdgpu: don't VT switch on suspend ...
| * Merge tag 'drm-intel-next-fixes-2015-11-06' of ↵Dave Airlie2015-11-077-24/+79
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next Here's a handful of i915 fixes for drm-next/v4.4. Imre's commit alone should address the remaining warnings galore you experienced on Skylake. Almost all of the rest are also fixes against user or QA reported bugs, with references. * tag 'drm-intel-next-fixes-2015-11-06' of git://anongit.freedesktop.org/drm-intel: drm/i915/skl: disable display side power well support for now drm/i915: Extend DSL readout fix to BDW and SKL. drm/i915: Do graphics device reset under forcewake drm/i915: Skip fence installation for objects with rotated views (v4) drm/i915: add quirk to enable backlight on Dell Chromebook 11 (2015) drm/i915/skl: Prevent unclaimed register writes on skylake. drm/i915: disable CPU PWM also on LPT/SPT backlight disable drm/i915: Fix maxfifo watermark calc on vlv cursor planes drm/i915: add hotplug activation period to hotplug update mask
| | * drm/i915/skl: disable display side power well support for nowImre Deak2015-11-062-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The display power well support on this platform is in a somewhat broken state atm, so disable it by default. This in effect will get rid of incorrect assert WARNs about the CSR/DMC firmware not being loaded during power well toggling. It also removes a problem during driver loading where a register is accessed while its backing power well is down, resulting in another WARN. Until we come up with the root cause of the second problem and the proper fix for both issues, keep all display side power wells on. Also clarify a bit the option description. Reported-by: Dave Airlie <airlied@redhat.com> Reference: http://mid.gmane.org/CAPM=9tyjBQjSBTKa49cRr6SYkpNW7Pq-fUFznZZ8Y1snvvk7mA@mail.gmail.com Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446757451-2777-1-git-send-email-imre.deak@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: Extend DSL readout fix to BDW and SKL.Maarten Lankhorst2015-11-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Those platforms have the same bug as haswell, and the same fix applies to them. The original HSW fix that this extends is commit 41b578fb0e8b930f2470d3f673b0fa279e77a7b8 Author: Jesse Barnes <jbarnes@virtuousgeek.org> Date: Tue Sep 22 12:15:54 2015 -0700 drm/i915: workaround bad DSL readout v3 Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: stable@vger.kernel.org # v4.3 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91579 Link: http://patchwork.freedesktop.org/patch/msgid/1446535913-31970-3-git-send-email-maarten.lankhorst@linux.intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: Do graphics device reset under forcewakeMika Kuoppala2015-11-051-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a timed release of a forcewake when using I915_READ/WRITE macros. wait_for() macro will go to quite long sleep if the first read doesn't satisfy the condition for successful exit. With these two interacting, it is possible that we lose the forcewake during the wait_for() and the subsequent read will reaquire forcewake. Further experiments with skl shows that when we lose forcewake, we lose the reset request we submitted. So reset request register is not power context saved. Grab forcewakes for all engines before starting the reset/request dance so that all requests stay valid for the duration of reset requisition across all the engines. v2: Add comment on power well sleeps. Wrap the reset handling under forcewake instead of just reset requests (Chris) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92774 Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Tomi Sarvela <tomix.p.sarvela@intel.com> (v1, v2) Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446721898-1450-1-git-send-email-mika.kuoppala@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: Skip fence installation for objects with rotated views (v4)Vivek Kasireddy2015-11-051-16/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While pinning a fb object to the display plane, only install a fence if the object is using a normal view. This corresponds with the behavior found in i915_gem_object_do_pin() where the fencability criteria is determined only for objects with normal views. v2: Look at the object's map_and_fenceable flag to determine whether to install a fence or not (Chris). v3: Pin and unpin a fence only if the current view type is normal. v4: Extend the "view type is normal" check for pin_fence as well. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com> Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446170078-20792-1-git-send-email-vivek.kasireddy@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: add quirk to enable backlight on Dell Chromebook 11 (2015)Jani Nikula2015-11-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Keith Webb <khwebb@gmail.com> Suggested-by: Keith Webb <khwebb@gmail.com> Cc: stable@vger.kernel.org Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=106671 Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446209424-28801-1-git-send-email-jani.nikula@intel.com
| | * drm/i915/skl: Prevent unclaimed register writes on skylake.Maarten Lankhorst2015-11-021-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm getting unclaimed register writes when checking the WM registers after the crtc is disabled. So I would imagine those are guarded by the crtc power well. Fix this by not reading out wm state when the power well is off. Cc: stable@vger.kernel.org # v4.3 Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92181 Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: disable CPU PWM also on LPT/SPT backlight disableJani Nikula2015-10-281-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although we don't support or enable CPU PWM with LPT/SPT based systems, it may have been enabled prior to loading the driver. Disable the CPU PWM on LPT/SPT backlight disable to avoid warnings on LCPLL disable. The issue has been present on BDW since BDW enabling, but was recently introduced on HSW with commit 437b15b8017e0d946453c10794b0c5d4591cf180 Author: Jani Nikula <jani.nikula@intel.com> Date: Fri Sep 4 16:55:13 2015 +0300 drm/i915: use pch backlight override on hsw too Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reference: http://mid.gmane.org/87y4frhwsn.fsf@yhuang-dev.intel.com Reported-by: kernel test robot <ying.huang@intel.com> Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1446033429-8006-1-git-send-email-jani.nikula@intel.com
| | * drm/i915: Fix maxfifo watermark calc on vlv cursor planesThomas Daniel2015-10-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A typo resulted in the watermarks for cursor planes not being calculated correctly. Fixed the typo. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Thomas Daniel <thomas.daniel@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
| | * drm/i915: add hotplug activation period to hotplug update maskJani Nikula2015-10-221-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 0706f17c307b056ff6f1848320ba82d76945a6ff Author: Egbert Eich <eich@suse.de> Date: Wed Sep 23 16:15:27 2015 +0200 drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt, v2 added a check with WARN to ensure only bits within the mask are enabled. Turns out that doesn't hold for G4X, which spits out: [ 2.641439] ------------[ cut here ]------------ [ 2.641444] WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/i915/i915_irq.c:182 i915_hotplug_interrupt_update_locked+0x45/0x83() [ 2.641446] WARN_ON(bits & ~mask) etc. Add CRT_HOTPLUG_ACTIVATION_PERIOD_64 to the mask to fix the warning. Reported-and-tested-by: Oleksij Rempel <linux@rempel-privat.de> References: https://bugzilla.kernel.org/show_bug.cgi?id=104991 Fixes: 0706f17c307b ("drm/i915: Avoid race of intel_crt_detect_hotplug() with HPD interrupt, v2") Cc: Egbert Eich <eich@suse.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1445437363-3030-1-git-send-email-jani.nikula@intel.com
| * | drm/i915: Fix locking around GuC firmware loadDaniel Stone2015-11-042-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GuC firmware load requires struct_mutex to create a GEM object, but this collides badly with request_firmware. Move struct_mutex locking down into the loader itself, so we don't hold it across the entire load process, including request_firmware. [ 20.451400] ====================================================== [ 20.451420] [ INFO: possible circular locking dependency detected ] [ 20.451441] 4.3.0-rc5+ #1 Tainted: G W [ 20.451457] ------------------------------------------------------- [ 20.451477] plymouthd/371 is trying to acquire lock: [ 20.451494] (&dev->struct_mutex){+.+.+.}, at: [<ffffffffa0093c62>] drm_gem_mmap+0x112/0x290 [drm] [ 20.451538] but task is already holding lock: [ 20.451557] (&mm->mmap_sem){++++++}, at: [<ffffffff811fd9ac>] vm_mmap_pgoff+0x8c/0xf0 [ 20.451591] which lock already depends on the new lock. [ 20.451617] the existing dependency chain (in reverse order) is: [ 20.451640] -> #3 (&mm->mmap_sem){++++++}: [ 20.451661] [<ffffffff8110644e>] lock_acquire+0xce/0x1c0 [ 20.451683] [<ffffffff8120ec9a>] __might_fault+0x7a/0xa0 [ 20.451705] [<ffffffff8127e34e>] filldir+0x9e/0x130 [ 20.451726] [<ffffffff81295b86>] dcache_readdir+0x186/0x230 [ 20.451748] [<ffffffff8127e117>] iterate_dir+0x97/0x130 [ 20.451769] [<ffffffff8127e66a>] SyS_getdents+0x9a/0x130 [ 20.451790] [<ffffffff8184f2f2>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 20.451829] -> #2 (&sb->s_type->i_mutex_key#2){+.+.+.}: [ 20.451852] [<ffffffff8110644e>] lock_acquire+0xce/0x1c0 [ 20.451872] [<ffffffff8184b516>] mutex_lock_nested+0x86/0x400 [ 20.451893] [<ffffffff81277790>] walk_component+0x1d0/0x2a0 [ 20.451914] [<ffffffff812779f0>] link_path_walk+0x190/0x5a0 [ 20.451935] [<ffffffff8127803b>] path_openat+0xab/0x1260 [ 20.451955] [<ffffffff8127a651>] do_filp_open+0x91/0x100 [ 20.451975] [<ffffffff81267e67>] file_open_name+0xf7/0x150 [ 20.451995] [<ffffffff81267ef3>] filp_open+0x33/0x60 [ 20.452014] [<ffffffff8157e1e7>] _request_firmware+0x277/0x880 [ 20.452038] [<ffffffff8157e9e4>] request_firmware_work_func+0x34/0x80 [ 20.452060] [<ffffffff810c7020>] process_one_work+0x230/0x680 [ 20.452082] [<ffffffff810c74be>] worker_thread+0x4e/0x450 [ 20.452102] [<ffffffff810ce511>] kthread+0x101/0x120 [ 20.452121] [<ffffffff8184f66f>] ret_from_fork+0x3f/0x70 [ 20.452140] -> #1 (umhelper_sem){++++.+}: [ 20.452159] [<ffffffff8110644e>] lock_acquire+0xce/0x1c0 [ 20.452178] [<ffffffff8184c5c1>] down_read+0x51/0xa0 [ 20.452197] [<ffffffff810c203b>] usermodehelper_read_trylock+0x5b/0x130 [ 20.452221] [<ffffffff8157e147>] _request_firmware+0x1d7/0x880 [ 20.452242] [<ffffffff8157e821>] request_firmware+0x31/0x50 [ 20.452262] [<ffffffffa01b54a4>] intel_guc_ucode_init+0xf4/0x400 [i915] [ 20.452305] [<ffffffffa0213913>] i915_driver_load+0xd63/0x16e0 [i915] [ 20.452343] [<ffffffffa00987d9>] drm_dev_register+0xa9/0xc0 [drm] [ 20.452369] [<ffffffffa009ae3d>] drm_get_pci_dev+0x8d/0x1e0 [drm] [ 20.452396] [<ffffffffa01521e4>] i915_pci_probe+0x34/0x50 [i915] [ 20.452421] [<ffffffff81464675>] local_pci_probe+0x45/0xa0 [ 20.452443] [<ffffffff81465a6d>] pci_device_probe+0xfd/0x140 [ 20.452464] [<ffffffff8156a2e4>] driver_probe_device+0x224/0x480 [ 20.452486] [<ffffffff8156a5c8>] __driver_attach+0x88/0x90 [ 20.452505] [<ffffffff81567cf3>] bus_for_each_dev+0x73/0xc0 [ 20.452526] [<ffffffff81569a7e>] driver_attach+0x1e/0x20 [ 20.452546] [<ffffffff815695ae>] bus_add_driver+0x1ee/0x280 [ 20.452566] [<ffffffff8156b100>] driver_register+0x60/0xe0 [ 20.453197] [<ffffffff81464050>] __pci_register_driver+0x60/0x70 [ 20.453845] [<ffffffffa009b070>] drm_pci_init+0xe0/0x110 [drm] [ 20.454497] [<ffffffffa027f092>] 0xffffffffa027f092 [ 20.455156] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 20.455796] [<ffffffff811d8c01>] do_init_module+0x5f/0x1e7 [ 20.456434] [<ffffffff8114c4e6>] load_module+0x2126/0x27d0 [ 20.457071] [<ffffffff8114cdf9>] SyS_finit_module+0xb9/0xf0 [ 20.457738] [<ffffffff8184f2f2>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 20.458370] -> #0 (&dev->struct_mutex){+.+.+.}: [ 20.459773] [<ffffffff8110584f>] __lock_acquire+0x191f/0x1ba0 [ 20.460451] [<ffffffff8110644e>] lock_acquire+0xce/0x1c0 [ 20.461074] [<ffffffffa0093c88>] drm_gem_mmap+0x138/0x290 [drm] [ 20.461693] [<ffffffff8121a5ec>] mmap_region+0x3ec/0x670 [ 20.462298] [<ffffffff8121abb2>] do_mmap+0x342/0x420 [ 20.462901] [<ffffffff811fd9d2>] vm_mmap_pgoff+0xb2/0xf0 [ 20.463532] [<ffffffff81218f62>] SyS_mmap_pgoff+0x1f2/0x290 [ 20.464118] [<ffffffff8102187b>] SyS_mmap+0x1b/0x30 [ 20.464702] [<ffffffff8184f2f2>] entry_SYSCALL_64_fastpath+0x12/0x76 [ 20.465289] other info that might help us debug this: [ 20.467179] Chain exists of: &dev->struct_mutex --> &sb->s_type->i_mutex_key#2 --> &mm->mmap_sem [ 20.468928] Possible unsafe locking scenario: [ 20.470161] CPU0 CPU1 [ 20.470745] ---- ---- [ 20.471325] lock(&mm->mmap_sem); [ 20.471902] lock(&sb->s_type->i_mutex_key#2); [ 20.472538] lock(&mm->mmap_sem); [ 20.473118] lock(&dev->struct_mutex); [ 20.473704] *** DEADLOCK *** Signed-off-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | Merge tag 'drm-intel-next-fixes-2015-10-22' of ↵Dave Airlie2015-10-3024-639/+791
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next Bunch of -fixes for 4.4. Well not just, I've left the mmio/register work from Ville in here since it's low-risk but lots of churn all over. * tag 'drm-intel-next-fixes-2015-10-22' of git://anongit.freedesktop.org/drm-intel: (23 commits) drm/i915: Use round to closest when computing the CEA 1.001 pixel clocks drm/i915: Kill the leftover RMW from ivb_sprite_disable() drm/i915: restore ggtt double-bind avoidance drm/i915/skl: Enable pipe gamma for sprite planes. drm/i915/skl+: Enable pipe CSC on cursor planes. (v2) MAINTAINERS: add link to the Intel Graphics for Linux web site drm/i915: Move skl/bxt gt specific workarounds to ring init drm/i915: Drop i915_gem_obj_is_pinned() from set-cache-level drm/i915: revert a few more watermark commits drm/i915: Remove dev_priv argument from NEEDS_FORCE_WAKE drm/i915: Clean up LVDS register handling drm/i915: Throw out some useless variables drm/i915: Parametrize and fix SWF registers drm/i915: s/PIPE_FRMCOUNT_GM45/PIPE_FRMCOUNT_G4X/ etc. drm/i915: Turn GEN5_ASSERT_IIR_IS_ZERO() into a function drm/i915: Fix a few bad hex numbers in register defines drm/i915: Protect register macro arguments drm/i915: Include gpio_mmio_base in GMBUS reg defines drm/i915: Parametrize HSW video DIP data registers drm/i915: Eliminate weird parameter inversion from BXT PPS registers ...
| | * drm/i915: Use round to closest when computing the CEA 1.001 pixel clocksVille Syrjälä2015-10-191-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drm_edid.c now computes the alternate CEA clocks using DIV_ROUND_CLOSEST(), so follow suit in the N/CTS setup to make sure we pick the right setting for the mode. Unfortunately we can't actually use DIV_ROUND_CLOSEST() here due to the ({}) construct used, so just stick in raw numbers instead. Cc: Clint Taylor <clinton.a.taylor@intel.com> Cc: Libin Yang <libin.yang@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Kill the leftover RMW from ivb_sprite_disable()Ville Syrjälä2015-10-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | We still had one lingering RMW in ivb_sprite_disable(), all the other RMWs were killed off from the sprite code some time ago. Kill the straggler too. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: restore ggtt double-bind avoidanceDaniel Vetter2015-10-151-12/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was accidentally lost in commit 75d04a3773ecee617847de963ae4195d6aa74c28 Author: Mika Kuoppala <mika.kuoppala@linux.intel.com> Date: Tue Apr 28 17:56:17 2015 +0300 drm/i915/gtt: Allocate va range only if vma is not bound While at it implement an improved version suggested by Chris which avoids the double-bind irrespective of what type of bind is done first. Note that this exact bug was already addressed in commit d0e30adc42d979e4adc36b6c112b57337423b70c Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Jul 29 20:02:48 2015 +0100 drm/i915: Mark PIN_USER binding as GLOBAL_BIND without the aliasing ppgtt but the problem is still that originally in commit 0875546c5318c85c13d07014af5350e9000bc9e9 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Mon Apr 20 09:04:05 2015 -0700 drm/i915: Fix up the vma aliasing ppgtt binding if forgotten to take into account there case where we have a GLOBAL_BIND before a LOCAL_BIND. This patch here fixes that. v2: Pimp commit message and revert the partial fix. v3: Split into two functions to specialize on aliasing_ppgtt y/n. v4: WARN_ON for paranoia in the init sequence, since the ggtt probe and aliasing ppgtt setup are far apart. v5: Style nits. Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Michel Thierry <michel.thierry@intel.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://mid.gmane.org/1444911781-32607-1-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915/skl: Enable pipe gamma for sprite planes.Bob Paauwe2015-10-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since SKL has universal planes, we should configure the sprite planes and the primary plane the same. For the primary plane we do enable the pipe gamma on the plane so do the same for the non-primary planes. Without this, the pipe CRC values will be different for something displayed on the primary plane and something displayed on a sprite plane when the ARGB8888 format is used. Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915/skl+: Enable pipe CSC on cursor planes. (v2)Bob Paauwe2015-10-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Extend this to SKL and BXT as it's needed for these platforms as well. v2: Change if condition to HAS_DDI() instead of listing each platform Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Move skl/bxt gt specific workarounds to ring initMika Kuoppala2015-10-132-61/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some registers are, naturally, lost in gpu reset/suspend cycle. And some registers, for example in display domain, are not subject to gpu reset so they retain their contents. As hang recovery triggers a reset, recoverable gpu hang can currently flush out essential workarounds and cause havoc later on. When register GEN8_GARBNTL is missing the WaEnableGapsTsvCreditFix:skl, it can cause random system hangs [1]. This workaround was added in: commit 245d96670d26 ("drm/i915:skl: Add WaEnableGapsTsvCreditFix") But another set of system hangs were observed and the failure pattern indicated that there was random gpu hang preceding the system hang [2]. This lead to the realization that we lose this workaround and BDW_SCRATCH1 on reset. Add these workarounds setup in display init to skl/bxt ring init where LRI workarounds are also setup. This way their setup is not dependent on display side init. References: [1] https://bugs.freedesktop.org/show_bug.cgi?id=90854 References: [2] https://bugs.freedesktop.org/show_bug.cgi?id=92315 Reported-by: Tomi Sarvela <tomix.p.sarvela@intel.com> Cc: Tomi Sarvela <tomix.p.sarvela@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Tested-by: Tomi Sarvela <tomix.p.sarvela@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Drop i915_gem_obj_is_pinned() from set-cache-levelChris Wilson2015-10-131-21/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the remove of the pin-ioctl, we only care about not changing the cache level on buffers pinned to the hardware as indicated by obj->pin_display. By knowing that only objects pinned to the hardware will have an elevated vma->pin_count, so we can coallesce many of the linear walks over the obj->vma_list. v2: Try and retrospectively add comments explaining the steps in rebinding the active VMA. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: revert a few more watermark commitsPaulo Zanoni2015-10-136-199/+293
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a squash of the following commits: Revert "drm/i915: Drop intel_update_sprite_watermarks" This reverts commit 47c99438b52d12df50e182583634a4cfede3c920. Revert "drm/i915/ivb: Move WaCxSRDisabledForSpriteScaling w/a to atomic check" This reverts commit 7809e5ae35b9d8d0710f0874b2e3f10be144e38b. Revert "drm/i915/skl: Eliminate usage of pipe_wm_parameters from SKL-style WM (v3)" This reverts commit 3a05f5e2e78eab7ffe816abb59b6769e331a1957. With these reverts, SKL finally stops failing every single FBC test with FIFO underrun error messages. After some brief testing, it also seems that this commit prevents the machine from completely freezing when we run igt/kms_fbc_crc (see fd.o #92355). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92355 Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Remove dev_priv argument from NEEDS_FORCE_WAKEVille Syrjälä2015-10-131-8/+8
| | | | | | | | | | | | | | | | | | Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Clean up LVDS register handlingVille Syrjälä2015-10-131-16/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep single 'lvds_reg' and 'lvds' variable around in intel_lvds_init(), and read it just once at the start. Also intel_lvds_get_config() doesn't need to figure out which reg to use since it can just consult lvds_encoder->reg. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Throw out some useless variablesVille Syrjälä2015-10-133-60/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop some useless 'reg' variables when we only use them once. v2: A few more, including a few variable moves Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Parametrize and fix SWF registersVille Syrjälä2015-10-133-25/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Parametrize the SWF registers. This also fixes the register offsets, which were mostly garbage in the old defines. Also save/restore only as many SWF registers that each platform has. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: s/PIPE_FRMCOUNT_GM45/PIPE_FRMCOUNT_G4X/ etc.Ville Syrjälä2015-10-133-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PIPE_FRMCOUNT_GM45 and PIPE_FLIPCOUNT_GM45 names have bothered me for a long time. The work equally well for ELK and onwards, so let's s/GM45/G4X/. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Turn GEN5_ASSERT_IIR_IS_ZERO() into a functionVille Syrjälä2015-10-131-14/+17
| | | | | | | | | | | | | | | | | | Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Fix a few bad hex numbers in register definesVille Syrjälä2015-10-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A few register mask defines were missing the '0x' from hex numbers. Or at least I assume those were meant to be hex numbers. Put the '0x' in place. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Protect register macro argumentsVille Syrjälä2015-10-131-46/+46
| | | | | | | | | | | | | | | | | | | | | | | | Always put parens around macro argument evaluations. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Include gpio_mmio_base in GMBUS reg definesVille Syrjälä2015-10-132-37/+29
| | | | | | | | | | | | | | | | | | Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Parametrize HSW video DIP data registersVille Syrjälä2015-10-133-28/+32
| | | | | | | | | | | | | | | | | | Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Eliminate weird parameter inversion from BXT PPS registersVille Syrjälä2015-10-131-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | v2: Keep using the same registers (PCH_*) instead of accidentally starting to use the other ones (BXT_*)2) (Jesse) Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Hold dev->event_lock whilst inspecting intel_crtc->unpin_workChris Wilson2015-10-131-25/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should serialise access to the intel_crtc->unpin_work through the dev->event_lock spinlock. It should not be possible for it to disappear without severe error as the mmio_flip worker has not tagged the unpin_work pending flip-completion. Similarly if the error exists, just taking the unpin_work whilst holding the spinlock and then using it unserialised just masks the race. (It is supposed to be valid as the unpin_work exists until the flip completion interrupt which should not fire until we flush the mmio writes to update the display base which is the last time we access the unpin_work from the kthread.) References: https://bugs.freedesktop.org/show_bug.cgi?id=92335 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * i915: switch from acpi_os_ioremap to memremapWilliams, Dan J2015-10-135-62/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | i915 expects the OpRegion to be cached (i.e. not __iomem), so explicitly map it with memremap rather than the implied cache setting of acpi_os_ioremap(). Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: intel-gfx@lists.freedesktop.org Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * drm/i915: Drop unnecessary #include <linux/vga_switcheroo.h>Lukas Wunner2015-10-131-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 599bbb9de0fe ("drm/i915: i915 cannot provide switcher services.") removed all remaining vga_switcheroo symbols from intel_acpi.c but left the include. Drop it. Signed-off-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | Merge tag 'topic/drm-misc-2015-10-19' of ↵Dave Airlie2015-10-201-35/+35
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next More drm-misc for 4.4. - fb refcount fix in atomic fbdev - various locking reworks to reduce drm_global_mutex and dev->struct_mutex - rename docbook to gpu.tmpl and include vga_switcheroo stuff, plus more vga_switcheroo (Lukas Wunner) - viewport check fixes for atomic drivers from Ville - DRM_DEBUG_VBL from Ville - non-contentious header fixes from Mikko Rapeli - small things all over * tag 'topic/drm-misc-2015-10-19' of git://anongit.freedesktop.org/drm-intel: (31 commits) drm/fb-helper: Fix fb refcounting in pan_display_atomic drm/fb-helper: Set plane rotation directly drm: fix mutex leak in drm_dp_get_mst_branch_device drm: Check plane src coordinates correctly during page flip for atomic drivers drm: Check crtc viewport correctly with rotated primary plane on atomic drivers drm: Refactor plane src coordinate checks drm: Swap w/h when converting the mode to src coordidates for a rotated primary plane drm: Don't leak fb when plane crtc coodinates are bad ALSA: hda - Spell vga_switcheroo consistently drm/gem: Use kref_get_unless_zero for the weak mmap references drm/vgem: Drop vgem_drm_gem_mmap drm: Fix return value of drm_framebuffer_init() drm/gem: Use container_of in drm_gem_object_free drm/gem: Check locking in drm_gem_object_unreference drm/gem: Drop struct_mutex requirement from drm_gem_mmap_obj drm/i810_drm.h: include drm/drm.h r128_drm.h: include drm/drm.h savage_drm.h: include <drm/drm.h> gpu/doc: Convert to markdown harder gpu/doc: Add vga_switcheroo documentation ...
| | * | drm/<drivers>: Drop DRM_UNLOCKED from modeset driversDaniel Vetter2015-10-161-36/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just one special case (since i915 lost its ums code, yay): - radeon: Has slots for the old ums ioctls which don't have DRM_UNLOCKED, but all filled with drm_invalid_op. So ok to drop it everywhere. Every other kms driver just has DRM_UNLOCKED for all their ioctls, as they should. v2: admgpu happened, include that one too. And i915 lost its UMS support which means we can change all the i915 ioctls too. v3: Rebased on top of new vmwgfx DX interface extensions. v4: Rebase on top of render-node support in exynos. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: Mark getparam ioctl as DRM_UNLOCKEDDaniel Vetter2015-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With kms all the data getparam looks at is actually invariant, and certainly not protected by the global kms mutex. With ums all the setup code is already racy as hell, so this won't make things any worse. I've done this change so that all ioctl still used by kms drivers are marked as DRM_UNLOCKED, besides that we obviously don't need it any more in kms mode. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | Merge tag 'drm-intel-next-2015-10-10' of ↵Dave Airlie2015-10-2059-1729/+2552
| |\ \ \ | | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-next - dmc fixes from Animesh (not yet all) for deeper sleep states - piles of prep patches from Ville to make mmio functions type-safe - more fbc work from Paulo all over - w/a shuffling from Arun Siluvery - first part of atomic watermark updates from Matt and Ville (later parts had to be dropped again unfortunately) - lots of patches to prepare bxt dsi support ( Shashank Sharma) - userptr fixes from Chris - audio rate interface between i915/snd_hda plus kerneldoc (Libin Yang) - shrinker improvements and fixes (Chris Wilson) - lots and lots of small patches all over * tag 'drm-intel-next-2015-10-10' of git://anongit.freedesktop.org/drm-intel: (134 commits) drm/i915: Update DRIVER_DATE to 20151010 drm/i915: Partial revert of atomic watermark series drm/i915: Early exit from semaphore_waits_for for execlist mode. drm/i915: Remove wrong warning from i915_gem_context_clean drm/i915: Determine the stolen memory base address on gen2 drm/i915: fix FBC buffer size checks drm/i915: fix CFB size calculation drm/i915: remove pre-atomic check from SKL update_primary_plane drm/i915: don't allocate fbcon from stolen memory if it's too big Revert "drm/i915: Call encoder hotplug for init and resume cases" Revert "drm/i915: Add hot_plug hook for hdmi encoder" drm/i915: use error path drm/i915/irq: Fix misspelled word register in kernel-doc drm/i915/irq: Fix kernel-doc warnings drm/i915: Hook up ring workaround writes at context creation time on Gen6-7. drm/i915: Don't warn if the workaround list is empty. drm/i915: Resurrect golden context on gen6/7 drm/i915/chv: remove pre-production hardware workarounds drm/i915/snb: remove pre-production hardware workaround drm/i915/bxt: Set time interval unit to 0.833us ...
| | * | drm/i915: Update DRIVER_DATE to 20151010Daniel Vetter2015-10-101-1/+1
| | | | | | | | | | | | | | | | Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: Partial revert of atomic watermark seriesMatt Roper2015-10-094-202/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's been reported that the atomic watermark series triggers some regressions on SKL, which we haven't been able to track down yet. Let's temporarily revert these patches while we track down the root cause. This commit squashes the reverts of: 76305b1 drm/i915: Calculate watermark configuration during atomic check (v2) a4611e4 drm/i915: Don't set plane visible during HW readout if CRTC is off a28170f drm/i915: Calculate ILK-style watermarks during atomic check (v3) de4a9f8 drm/i915: Calculate pipe watermarks into CRTC state (v3) de165e0 drm/i915: Refactor ilk_update_wm (v3) Reference: http://lists.freedesktop.org/archives/intel-gfx/2015-October/077190.html Cc: "Zanoni, Paulo R" <paulo.r.zanoni@intel.com> Cc: "Vetter, Daniel" <daniel.vetter@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: Early exit from semaphore_waits_for for execlist mode.Tomas Elf2015-10-091-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When submitting semaphores in execlist mode the hang checker crashes in this function because it is only runnable in ring submission mode. The reason this is of particular interest to the TDR patch series is because we use semaphores as a mean to induce hangs during testing (which is the recommended way to induce hangs for gen8+). It's not clear how this is supposed to work in execlist mode since: 1. This function requires a ring buffer. 2. Retrieving a ring buffer in execlist mode requires us to retrieve the corresponding context, which we get from a request. 3. Retieving a request from the hang checker is not straight-forward since that requires us to grab the struct_mutex in order to synchronize against the request retirement thread. 4. Grabbing the struct_mutex from the hang checker is nothing that we will do since that puts us at risk of deadlock since a hung thread might be holding the struct_mutex already. Therefore it's not obvious how we're supposed to deal with this. For now, we're doing an early exit from this function, which avoids any kernel panic situation when running our own internal TDR ULT. * v2: (Chris Wilson) Turned the execlist mode check into a ringbuffer NULL check to make it more submission mode agnostic and less of a layering violation. Signed-off-by: Tomas Elf <tomas.elf@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: Remove wrong warning from i915_gem_context_cleanTvrtko Ursulin2015-10-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit e9f24d5fb7cf3628b195b18ff3ac4e37937ceeae Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Date: Mon Oct 5 13:26:36 2015 +0100 drm/i915: Clean up associated VMAs on context destruction Introduced a wrong assumption that all contexts have a ppgtt instance. This is not true when full PPGTT is not active so remove the WARN_ON_ONCE from the context cleanup code. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Michel Thierry <michel.thierry@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: Determine the stolen memory base address on gen2Ville Syrjälä2015-10-091-11/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There isn't an explicit stolen memory base register on gen2. Some old comment in the i915 code suggests we should get it via max_low_pfn_mapped, but that's clearly a bad idea on my MGM. The e820 map in said machine looks like this: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009f7ff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009f800-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000ce000-0x00000000000cffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000dc000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001f6effff] usable [ 0.000000] BIOS-e820: [mem 0x000000001f6f0000-0x000000001f6f7fff] ACPI data [ 0.000000] BIOS-e820: [mem 0x000000001f6f8000-0x000000001f6fffff] ACPI NVS [ 0.000000] BIOS-e820: [mem 0x000000001f700000-0x000000001fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fec10000-0x00000000fec1ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000ffb00000-0x00000000ffbfffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fff00000-0x00000000ffffffff] reserved That makes max_low_pfn_mapped = 1f6f0000, so assuming our stolen memory would start there would place it on top of some ACPI memory regions. So not a good idea as already stated. The 9MB region after the ACPI regions at 0x1f700000 however looks promising given that the macine reports the stolen memory size to be 8MB. Looking at the PGTBL_CTL register, the GTT entries are at offset 0x1fee00000, and given that the GTT entries occupy 128KB, it looks like the stolen memory could start at 0x1f700000 and the GTT entries would occupy the last 128KB of the stolen memory. After some more digging through chipset documentation, I've determined the BIOS first allocates space for something called TSEG (something to do with SMM) from the top of memory, and then it allocates the graphics stolen memory below that. Accordind to the chipset documentation TSEG has a fixed size of 1MB on 855. So that explains the top 1MB in the e820 region. And it also confirms that the GTT entries are in fact at the end of the the stolen memory region. Derive the stolen memory base address on gen2 the same as the BIOS does (TOM-TSEG_SIZE-stolen_size). There are a few differences between the registers on various gen2 chipsets, so a few different codepaths are required. 865G is again bit more special since it seems to support enough memory to hit 4GB address space issues. This means the PCI allocations will also affect the location of the stolen memory. Fortunately there appears to be the TOUD register which may give us the correct answer directly. But the chipset docs are a bit unclear, so I'm not 100% sure that the graphics stolen memory is always the last thing the BIOS steals. Someone would need to verify it on a real system. I tested this on the my 830 and 855 machines, and so far everything looks peachy. v2: Rewrite to use the TOM-TSEG_SIZE-stolen_size and TOUD methods v3: Fix TSEG size for 830 v4: Add missing 'else' (Chris) Tested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: fix FBC buffer size checksPaulo Zanoni2015-10-091-5/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to my experiments (and later confirmation from the hardware developers), the maximum sizes mentioned in the specification delimit how far in the buffer the hardware tracking can go. And the hardware calculates the size based on the plane address we provide - and the provided plane address might not be the real x:0,y:0 point due to the compute_page_offset() function. On platforms that do the x/y offset adjustment trick it will be really hard to reproduce a bug, but on the current SKL we can reproduce the bug with igt/kms_frontbuffer_tracking/fbc-farfromfence. With this patch, we'll go from "CRC assertion failure" to "FBC unexpectedly disabled", which is still a failure on the test suite but is not a perceived user bug - you will just not save as much power as you could if FBC is disabled. v2, rewrite patch after clarification from the Hadware guys: - Rename function so it's clear what the check is for. - Use the new intel_fbc_get_plane_source_sizes() function in order to get the proper sizes as seen by FBC. v3: - Rebase after the s/sizes/size/ on the previous patch. - Adjust comment wording (Ville). - s/used_/effective_/ (Ville). Testcase: igt/kms_frontbuffer_tracking/fbc-farfromfence (SKL) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: fix CFB size calculationPaulo Zanoni2015-10-091-5/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were considering the whole framebuffer height, but the spec says we should only consider the active display height size. There were still some unclear questions based on the spec, but the hardware guys clarified them for us. According to them: - CFB size = CFB stride * Number of lines FBC writes to CFB - CFB stride = plane stride / compression limit - Number of lines FBC writes to CFB = MIN(plane source height, maximum number of lines FBC writes to CFB) - Plane source height = - pipe source height (PIPE_SRCSZ register) (before SKL) - plane size register height (PLANE_SIZE register) (SKL+) - Maximum number of lines FBC writes to CFB = - plane source height (before HSW) - 2048 (HSW+) For the plane source height, I could just have made our code do I915_READ() in order to be more future proof, but since it's not cool to do register reads I decided to just recalculate the values we use when we actually write to those registers. With this patch, depending on your machine configuration, a lot of the kms_frontbuffer_tracking subtests that used to result in a SKIP due to not enough stolen memory still start resulting in a PASS. v2: Use the clipped src size instead of pipe_src_h (Ville). v3: Use the appropriate information provided by the hardware guys. v4: Bikesheds: s/sizes/size/, s/fb_cpp/cpp/ (Ville). v5: - Don't use crtc->config->pipe_src_x for BDW- (Ville). - Fix the register name written in the comment. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: remove pre-atomic check from SKL update_primary_planePaulo Zanoni2015-10-091-21/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The comment suggests the check was there for some non-fully-atomic case, and I couldn't find a case where we wouldn't correctly initialize plane_state, so remove the check. Let's leave a WARN there just in case. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | drm/i915: don't allocate fbcon from stolen memory if it's too bigPaulo Zanoni2015-10-092-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Technology has evolved and now we have eDP panels with 3200x1800 resolution. In the meantime, the BIOS guys didn't change the default 32mb for stolen memory. On top of that, we can't assume our users will be able to increase the default stolen memory size to more than 32mb - I'm not even sure all BIOSes allow that. So just the fbcon buffer alone eats 22mb of my stolen memroy, and due to the BDW/SKL restriction of not using the last 8mb of stolen memory, all that's left for FBC is 2mb! Since fbcon is not the coolest feature ever, I think it's better to save our precious stolen resource to FBC and the other guys. On the other hand, we really want to use as much stolen memory as possible, since on some older systems the stolen memory may be a considerable percentage of the total available memory. This patch tries to achieve a little balance using a simple heuristic: if the fbcon wants more than half of the available stolen memory, don't use stolen memory in order to leave some for FBC and the other features. The long term plan should be to implement a way to set priorities for stolen memory allocation and then evict low priority users when the high priority ones need the memory. While we still don't have that, let's try to make FBC usable with the simple solution. Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | Revert "drm/i915: Call encoder hotplug for init and resume cases"Daniel Vetter2015-10-082-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 5d250b05918c002b63632c7db91c3c5f924c6a3b. It results on a deadlock on platforms where we need to (at least partially) re-init hpd interrupts from power domain code, since ->hot_plug might again grab a power well reference (to do edid/dp_aux transactions. At least chv is affected. Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com> References: http://mid.gmane.org/20151008133548.GX26517@intel.com Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| | * | Revert "drm/i915: Add hot_plug hook for hdmi encoder"Daniel Vetter2015-10-081-43/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 0b5e88dc25ee6c9040c0355e6e025dcbc9c8de92. It completely breaks booting on at least bsw (and maybe more). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88081 Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>