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Alistair Popple 249881232e nouveau/dmem: evict device private memory during release 
When the module is unloaded or a GPU is unbound from the module it is
possible for device private pages to still be mapped in currently running
processes.  This can lead to a hangs and RCU stall warnings when unbinding
the device as memunmap_pages() will wait in an uninterruptible state until
all device pages have been freed which may never happen.

Fix this by migrating device mappings back to normal CPU memory prior to
freeing the GPU memory chunks and associated device private pages.

Link: https://lkml.kernel.org/r/66277601fb8fda9af408b33da9887192bf895bda.1664366292.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Alex Sierra <alex.sierra@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 		2022-10-12 18:51:50 -07:00
..
accessibility TTY / Serial driver changes for 6.0-rc1 2022-08-08 11:31:40 -07:00
acpi Merge branch 'acpi-processor' into acpi 2022-08-27 14:43:18 +02:00
amba ARM: 9220/1: amba: Remove deferred device addition 2022-07-28 15:09:23 +01:00
android binder_alloc: add missing mmap_lock calls when using the VMA 2022-08-28 14:02:44 -07:00
ata ata: libata-eh: Add missing command name 2022-08-16 05:42:51 +09:00
atm atm: idt77252: fix use-after-free bugs caused by tst_timer 2022-08-08 20:51:59 -07:00
auxdisplay
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base mm: hugetlb: eliminate memory-less nodes handling 2022-10-03 14:03:15 -07:00
bcma
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block zram: keep comments within 80-columns limit 2022-10-03 14:03:09 -07:00
bluetooth SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
bus SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
cdrom
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char s390 updates for 5.20 merge window 2022-08-06 17:05:21 -07:00
clk The clk core gains a new set of APIs that allow drivers to both acquire clks 2022-08-04 18:40:08 -07:00
clocksource RISC-V: Add Sstc extension support 2022-08-11 14:41:52 -07:00
comedi pci-v5.20-changes 2022-08-04 19:30:35 -07:00
connector
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counter
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cpufreq cpufreq: check only freq_table in __resolve_freq() 2022-08-23 20:00:52 +02:00
cpuidle More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
crypto This update includes the following changes: 2022-08-02 17:45:14 -07:00
cxl cxl/hdm: Fix skip allocations vs multiple pmem allocations 2022-08-05 16:11:38 -07:00
dax mm/demotion/dax/kmem: set node's abstract distance to MEMTIER_DEFAULT_DAX_ADISTANCE 2022-09-26 19:46:11 -07:00
dca
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devfreq More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
dio
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dma pci-v5.20-changes 2022-08-04 19:30:35 -07:00
dma-buf drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
edac powerpc updates for 6.0 2022-08-06 16:38:17 -07:00
eisa
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extcon
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firewire firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
firmware kmsan: disable instrumentation of unsupported common kernel code 2022-10-03 14:03:20 -07:00
fpga
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fsi
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gnss
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gpio gpio: updates for v6.0-rc1 2022-08-04 18:34:05 -07:00
gpu nouveau/dmem: evict device private memory during release 2022-10-12 18:51:50 -07:00
greybus
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hid platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
hsi
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hte
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hv
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hwmon hwmon: (nct6775) Fix platform driver suspend regression 2022-08-10 06:37:01 -07:00
hwspinlock
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hwtracing asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
i2c i2c: imx: Make sure to unregister adapter on remove() 2022-08-21 10:27:33 +02:00
i3c
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idle Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
iio iio: light: isl29028: Fix the warning in isl29028_remove() 2022-07-19 09:42:11 +01:00
infiniband RDMA: Handle the return code from dma_resv_wait_timeout() properly 2022-08-16 17:13:23 +03:00
input input: libps2: mark data received in __ps2_command() as initialized 2022-10-03 14:03:21 -07:00
interconnect
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iommu irqchip fixes for 6.0, take #1 2022-08-18 17:37:22 +02:00
ipack
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irqchip irqchip fixes for 6.0, take #1 2022-08-18 17:37:22 +02:00
isdn
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leds LED updates for 5.20: new driver for bcm63138, is31fl319x updates, 2022-08-08 11:36:21 -07:00
macintosh macintosh/adb: fix oob read in do_adb_query() function 2022-07-20 22:06:30 +10:00
mailbox - mtk: use rx_callback instead of cmdq_task_cb. 2022-08-08 10:19:40 -07:00
mcb
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md block-6.0-2022-08-26 2022-08-26 11:05:54 -07:00
media More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
memory More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
memstick MMC core: 2022-08-04 19:41:09 -07:00
message
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mfd - Core Frameworks 2022-08-06 10:25:16 -07:00
misc cxl: remove vma linked list walk 2022-09-26 19:46:20 -07:00
mmc linux-kselftest-kunit-fixes-6.0-rc3 2022-08-23 13:23:07 -07:00
most
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mtd MTD core changes: 2022-08-05 14:13:45 -07:00
mux
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net crypto: kmsan: disable accelerated configs under KMSAN 2022-10-03 14:03:22 -07:00
nfc nfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout 2022-08-22 14:51:30 +01:00
ntb NTB: epf: Allow more flexibility in the memory BAR map method 2022-08-09 17:54:03 -04:00
nubus
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nvdimm libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE 2022-10-03 14:03:19 -07:00
nvme block-6.0-2022-08-12 2022-08-13 13:37:36 -07:00
nvmem SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
of RISC-V Patches for the 5.20 Merge Window, Part 2 2022-08-12 18:39:43 -07:00
opp OPP updates for 5.20-rc1 2022-08-03 17:49:38 +02:00
parisc parisc: ccio-dma: Handle kmalloc failure in ccio_init_resources() 2022-08-22 11:09:17 +02:00
parport
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pci Fix of heap data and clang warnings, support for a new Intel NTB device, 2022-08-13 14:00:45 -07:00
pcmcia
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peci
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perf perf: riscv legacy: fix kerneldoc comment warning 2022-08-18 14:19:26 -07:00
phy pci-v5.20-changes 2022-08-04 19:30:35 -07:00
pinctrl Pin control bulk changes for v6.0: 2022-08-10 11:01:44 -07:00
platform sound fixes for 6.0-rc2 2022-08-19 09:46:11 -07:00
pnp PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h 2022-07-22 17:23:45 -05:00
power power supply and reset changes for the v6.0 series 2022-08-12 09:37:33 -07:00
powercap Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
pps
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ps3
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ptp SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
pwm SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
rapidio
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ras
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regulator regulator: Fixes for v6.0 2022-08-16 11:36:38 -07:00
remoteproc virtio: Revert "virtio: find_vqs() add arg sizes" 2022-08-16 01:40:24 -04:00
reset ARM: SoC: late updates for 6.0 2022-08-05 10:02:33 -07:00
rpmsg
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rtc rtc: spear: set range max 2022-08-09 00:56:41 +02:00
s390 s390 updates for 6.0-rc2 2022-08-20 11:29:01 -07:00
sbus
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scsi scsi: sd: Revert "Rework asynchronous resume support" 2022-08-22 22:45:25 -04:00
sh
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siox
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slimbus
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soc More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
soundwire sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
spi spi: Fixes for v6.0 2022-08-16 11:40:15 -07:00
spmi
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ssb
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staging Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00
target SCSI misc on 20220813 2022-08-13 13:41:48 -07:00
tc
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tee optee: remove vma linked list walk 2022-09-26 19:46:20 -07:00
thermal Merge branch 'thermal-core' 2022-08-27 15:07:58 +02:00
thunderbolt USB / Thunderbolt changes for 6.0-rc1 2022-08-04 11:41:28 -07:00
tty TTY / Serial driver changes for 6.0-rc1 2022-08-08 11:31:40 -07:00
ufs scsi: ufs: core: Reduce the power mode change timeout 2022-08-19 21:34:36 -04:00
uio
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usb kmsan: handle memory sent to/from USB 2022-10-03 14:03:22 -07:00
vdpa vdpa/mlx5: Fix possible uninitialized return value 2022-08-11 10:00:36 -04:00
vfio vfio: Move vfio.c to vfio_main.c 2022-08-08 14:33:41 -06:00
vhost virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
video fbdev: fbcon: Properly revert changes when vc_resize() failed 2022-08-26 19:56:18 +02:00
virt Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
virtio virtio: kmsan: check/unpoison scatterlist in vring_map_one_sg() 2022-10-03 14:03:22 -07:00
vlynq
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w1
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watchdog linux-watchdog 5.20-rc1 tag 2022-08-08 15:04:04 -07:00
xen xen: use vma_lookup() in privcmd_ioctl_mmap() 2022-09-26 19:46:16 -07:00
zorro
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Kconfig
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Makefile Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00