Lyude Paul fa3cdf8d0b drm/nouveau: Reset MST branching unit before enabling ... When probing a new MST device, it's not safe to make any assumptions about it's current state. While most well mannered MST hubs will just disable the branching unit on hotplug disconnects, this isn't enough to save us from various other scenarios that might have resulted in something writing to the MST branching unit before we got control of it. This could happen if a previous probe we tried failed, if we're booting in kexec context and the hub is still in the state the last kernel put it in, etc. Luckily; there is no reason we can't just reset the branching unit every time we enable a new topology. So, fix this by resetting it on enabling new topologies to ensure that we always start off with a clean, unmodified topology state on MST sinks. This fixes occasional hard-lockups on my P50's laptop dock (e.g. AUX times out all DPCD trasactions) observed after multiple docks, undocks, and module reloads. Signed-off-by: Lyude Paul <lyude@redhat.com> Cc: stable@vger.kernel.org Cc: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>		2018-09-07 06:54:27 +10:00
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dispnv04	BackMerge v4.18-rc7 into drm-next	2018-07-30 10:39:22 +10:00
dispnv50	drm/nouveau: Reset MST branching unit before enabling	2018-09-07 06:54:27 +10:00
include	drm/nouveau/nvif: remove const attribute from nvif_mclass	2018-07-16 18:06:29 +10:00
nvif	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
nvkm	BackMerge v4.18-rc7 into drm-next	2018-07-30 10:39:22 +10:00
Kbuild	drm/nouveau/kms/nv50-: move code underneath dispnv50/	2018-05-18 15:01:26 +10:00
Kconfig
nouveau_abi16.c	drm/nouveau: Replace drm_gem_object_unreference_unlocked with put function	2018-07-16 18:06:29 +10:00
nouveau_abi16.h
nouveau_acpi.c	drm/nouveau: fix nouveau_dsm_get_client_id()'s return type	2018-05-18 17:09:46 +10:00
nouveau_acpi.h
nouveau_backlight.c	drm/nouveau: Use drm_connector_list_iter_* for iterating connectors	2018-07-16 17:59:59 +10:00
nouveau_bios.c
nouveau_bios.h
nouveau_bo.c	drm/nouveau/ce/gv100: initial support	2018-05-18 15:01:46 +10:00
nouveau_bo.h	drm/nouveau/ttm: don't dereference nvbo::cli, it can outlive client	2018-05-10 13:11:52 +10:00
nouveau_chan.c	drm/nouveau/fifo/gv100: initial support	2018-05-18 15:01:46 +10:00
nouveau_chan.h	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nouveau_connector.c	drm/nouveau: Fix deadlocks in nouveau_connector_detect()	2018-09-07 06:54:26 +10:00
nouveau_connector.h	drm/nouveau: Avoid looping through fake MST connectors	2018-07-16 17:59:59 +10:00
nouveau_crtc.h	drm/nouveau/kms/nv50: prepare for double-buffered LUTs	2018-02-02 15:24:06 +10:00
nouveau_debugfs.c	drm/nouveau/debugfs: Wake up GPU before doing any reclocking	2018-07-16 18:06:29 +10:00
nouveau_debugfs.h
nouveau_display.c	drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests	2018-09-07 06:54:26 +10:00
nouveau_display.h	drm/nouveau/kms: move display class instantiation to library	2018-05-18 15:01:26 +10:00
nouveau_dma.c	drm/nouveau/fifo/gv100: initial support	2018-05-18 15:01:46 +10:00
nouveau_dma.h	drm/nouveau/drm/nv50-: remove allocation of sw class	2018-05-18 15:01:26 +10:00
nouveau_dp.c
nouveau_drm.c	drm/nouveau: Remove useless poll_enable() call in drm_load()	2018-09-07 06:54:26 +10:00
nouveau_drv.h	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nouveau_encoder.h	drm/nouveau/kms/nv50: handle SetControlOutputResource from head	2018-05-18 15:01:28 +10:00
nouveau_fbcon.c	drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests	2018-09-07 06:54:26 +10:00
nouveau_fbcon.h	drm/nouveau/drm/nouveau: Fix deadlock with fb_helper with async RPM requests	2018-09-07 06:54:26 +10:00
nouveau_fence.c	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nouveau_fence.h	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nouveau_gem.c	BackMerge v4.18-rc7 into drm-next	2018-07-30 10:39:22 +10:00
nouveau_gem.h
nouveau_hwmon.c	drm/nouveau/hwmon: potential uninitialized variables	2018-07-16 18:06:29 +10:00
nouveau_hwmon.h
nouveau_ioc32.c
nouveau_ioctl.h
nouveau_led.c
nouveau_led.h
nouveau_mem.c	drm/nouveau: use alternate memory type for system-memory buffers with kind != 0	2017-12-19 10:16:37 +10:00
nouveau_mem.h
nouveau_nvif.c
nouveau_platform.c	drm/nouveau: Replace drm_dev_unref with drm_dev_put	2018-07-16 18:06:30 +10:00
nouveau_platform.h
nouveau_prime.c
nouveau_reg.h
nouveau_sgdma.c	drm/ttm: add bo as parameter to the ttm_tt_create callback	2018-03-14 14:38:27 -05:00
nouveau_ttm.c	drm/noveau: add SPDX identifier and clarify license	2018-06-29 15:28:47 -05:00
nouveau_ttm.h	drm/ttm: add bo as parameter to the ttm_tt_create callback	2018-03-14 14:38:27 -05:00
nouveau_usif.c
nouveau_usif.h
nouveau_vga.c	drm/nouveau: Remove useless poll_disable() call in switcheroo_set_state()	2018-09-07 06:54:26 +10:00
nouveau_vga.h
nouveau_vmm.c	drm/nouveau/gem: attach fences to VMAs to track GPU usage	2018-05-18 15:01:26 +10:00
nouveau_vmm.h	drm/nouveau/gem: attach fences to VMAs to track GPU usage	2018-05-18 15:01:26 +10:00
nv04_fbcon.c
nv04_fence.c	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nv10_fence.c	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nv10_fence.h
nv17_fence.c	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nv50_display.h	drm/nouveau/kms/nv50-: split each resource type into their own source files	2018-05-18 15:01:28 +10:00
nv50_fbcon.c
nv50_fence.c	drm/nouveau/fifo: support channel count query	2018-05-18 15:01:21 +10:00
nv84_fence.c	treewide: Use array_size() in vmalloc()	2018-06-12 16:19:22 -07:00
nvc0_fbcon.c
nvc0_fence.c