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Tina Zhang 092edaddb6 iommu: Support mm PASID 1:n with sva domains 
Each mm bound to devices gets a PASID and corresponding sva domains
allocated in iommu_sva_bind_device(), which are referenced by iommu_mm
field of the mm. The PASID is released in __mmdrop(), while a sva domain
is released when no one is using it (the reference count is decremented
in iommu_sva_unbind_device()). However, although sva domains and their
PASID are separate objects such that their own life cycles could be
handled independently, an enqcmd use case may require releasing the
PASID in releasing the mm (i.e., once a PASID is allocated for a mm, it
will be permanently used by the mm and won't be released until the end
of mm) and only allows to drop the PASID after the sva domains are
released. To this end, mmgrab() is called in iommu_sva_domain_alloc() to
increment the mm reference count and mmdrop() is invoked in
iommu_domain_free() to decrement the mm reference count.

Since the required info of PASID and sva domains is kept in struct
iommu_mm_data of a mm, use mm->iommu_mm field instead of the old pasid
field in mm struct. The sva domain list is protected by iommu_sva_lock.

Besides, this patch removes mm_pasid_init(), as with the introduced
iommu_mm structure, initializing mm pasid in mm_init() is unnecessary.

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20231027000525.1278806-6-tina.zhang@intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 		2023-12-12 10:11:31 +01:00
..
accel accel/ivpu/37xx: Fix hangs related to MMIO reset 2023-11-21 09:20:25 +01:00
accessibility
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acpi iommu: Avoid more races around device probe 2023-11-27 10:53:55 +01:00
amba amba: bus: balance firmware node reference counting 2023-10-17 13:37:35 -05:00
android Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
ata ata: pata_isapnp: Add missing error check for devm_ioport_map() 2023-11-20 09:22:26 +09:00
atm pci-v6.7-changes 2023-11-02 14:05:18 -10:00
auxdisplay
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base regmap: Fix for v6.7 2023-11-07 16:56:10 -08:00
bcma
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block nbd: pass nbd_sock to nbd_read_reply() instead of index 2023-11-21 07:42:04 -07:00
bluetooth Bluetooth: btmtksdio: enable bluetooth wakeup in system suspend 2023-10-23 11:04:51 -07:00
bus SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
cache riscv: RISCV_NONSTANDARD_CACHE_OPS shouldn't depend on RISCV_DMA_NONCOHERENT 2023-10-26 09:42:37 +02:00
cdrom
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cdx Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
char Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
clk SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
clocksource RISC-V Patches for the 6.7 Merge Window, Part 2 2023-11-10 09:23:17 -08:00
comedi
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connector Fix NULL pointer dereference in cn_filter() 2023-10-24 10:53:45 +02:00
counter
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cpufreq Merge branch 'pm-cpufreq' 2023-11-07 20:45:12 +01:00
cpuidle
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crypto crypto: talitos - stop using crypto_ahash::init 2023-10-27 18:04:29 +08:00
cxl cxl/pci: Change CXL AER support check to use native AER 2023-11-02 14:09:01 -07:00
dax Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
dca
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devfreq PM / devfreq: rockchip-dfi: add support for RK3588 2023-10-19 21:21:16 +09:00
dio
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dma dmaengine updates for v6.7 2023-11-03 18:56:51 -10:00
dma-buf As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
dpll dpll: Fix potential msg memleak when genlmsg_put_reply failed 2023-11-21 17:41:20 -08:00
edac hardening updates for v6.7-rc1 2023-10-30 19:09:55 -10:00
eisa
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extcon
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firewire firewire: Annotate struct fw_node with __counted_by 2023-11-05 21:15:17 +09:00
firmware vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
fpga Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
fsi
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gnss
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gpio pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
gpu Merge tag 'drm-intel-fixes-2023-11-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes 2023-11-24 11:18:29 +10:00
greybus greybus: Add BeaglePlay Linux Driver 2023-10-27 13:19:04 +02:00
hid for-linus-2023112301 2023-11-23 17:31:53 -08:00
hsi
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hte hte: Changes for v6.7-rc1 2023-10-31 18:32:51 -10:00
hv TTY/Serial changes for 6.7-rc1 2023-11-03 15:44:25 -10:00
hwmon hwmon updates for v6.7-rc1 2023-10-31 17:44:17 -10:00
hwspinlock
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hwtracing
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i2c i2c: ocores: Move system PM hooks to the NOIRQ phase 2023-11-13 12:43:42 -05:00
i3c I3C for 6.7 2023-11-04 16:25:36 -10:00
idle
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iio Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
infiniband RDMA for v6.7 2023-11-02 15:20:30 -10:00
input Input updates for 6.7 merge window: 2023-11-09 14:18:42 -08:00
interconnect Merge branch 'icc-platform-remove' into icc-next 2023-10-19 00:50:03 +03:00
iommu iommu: Support mm PASID 1:n with sva domains 2023-12-12 10:11:31 +01:00
ipack
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irqchip - Flush the translation service tables to prevent unpredictable behavior 2023-11-19 13:49:32 -08:00
isdn hardening updates for v6.7-rc1 2023-10-30 19:09:55 -10:00
leds pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
macintosh powerpc updates for 6.7 2023-11-03 10:07:39 -10:00
mailbox Moving repo 2023-11-05 18:45:32 -08:00
mcb mcb: fix error handling for different scenarios when parsing 2023-10-21 23:04:02 +02:00
md block-6.7-2023-11-23 2023-11-23 17:40:15 -08:00
media media updates for v6.7-rc1 2023-11-06 15:06:06 -08:00
memory IOMMU Updates for Linux v6.7 2023-11-09 13:37:28 -08:00
memstick
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message scsi: message: fusion: Initialize return value in mptfc_bus_reset() 2023-10-24 22:36:39 -04:00
mfd - Core Frameworks 2023-11-02 14:40:51 -10:00
misc RISC-V Patches for the 6.7 Merge Window, Part 1 2023-11-08 09:21:18 -08:00
mmc mmc: sdhci-pci-gli: GL9750: Mask the replay timer timeout of AER 2023-11-07 13:08:12 +01:00
most
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mtd - removed AR7 platform support 2023-11-10 09:19:46 -08:00
mux
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net net: ipa: fix one GSI register field width 2023-11-23 08:52:00 -08:00
nfc nfc: virtual_ncidev: Add variable to check if ndev is running 2023-11-22 10:55:48 +00:00
ntb
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nubus
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nvdimm libnvdimm: remove kernel-doc warnings: 2023-10-18 09:48:05 -07:00
nvme nvme: tcp: fix compile-time checks for TLS mode 2023-11-22 18:41:14 -07:00
nvmem Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
of RISC-V Patches for the 6.7 Merge Window, Part 2 2023-11-10 09:23:17 -08:00
opp
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parisc parisc/power: Fix power soft-off when running on qemu 2023-11-18 18:59:30 +01:00
parport parport: gsc: mark init function static 2023-11-10 08:41:23 +01:00
pci cxl for v6.7 2023-11-04 16:20:36 -10:00
pcmcia PCMCIA odd cleanups and fixes for v6.7-rc1 2023-11-07 16:40:42 -08:00
peci
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perf arm64 fixes: 2023-11-10 12:22:14 -08:00
phy Revert "phy: realtek: usb: Add driver for the Realtek SoC USB 2.0 PHY" 2023-11-06 14:47:36 +01:00
pinctrl pinctrl: nuvoton: npcm8xx: drop wrappers around pinctrl_gpio_request/free() 2023-11-04 10:23:23 +01:00
platform platform/x86: intel_telemetry: Fix kernel doc descriptions 2023-11-21 10:09:04 +02:00
pmdomain SoC driver updates for 6.7 2023-11-01 14:46:51 -10:00
pnp PNP: replace deprecated strncpy() with memcpy() 2023-10-20 19:50:40 +02:00
power USB/Thunderbolt changes for 6.7-rc1 2023-11-03 16:00:42 -10:00
powercap powercap: intel_rapl: Downgrade BIOS locked limits pr_warn() to pr_debug() 2023-10-24 22:07:07 +02:00
pps
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ps3
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ptp ptp: annotate data-race around q->head and q->tail 2023-11-13 20:51:37 -08:00
pwm pwm: samsung: Fix a bit test in pwm_samsung_resume() 2023-11-10 09:20:48 +01:00
rapidio
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ras
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regulator regulator: Merge up pending fix 2023-10-30 13:14:27 +00:00
remoteproc
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reset reset: Annotate struct reset_control_array with __counted_by 2023-10-24 14:10:04 -07:00
rpmsg rpmsg: virtio: Replace deprecated strncpy with strscpy/_pad 2023-10-23 13:11:07 -06:00
rtc RTC for 6.7 2023-11-05 18:49:40 -08:00
s390 block-6.7-2023-11-23 2023-11-23 17:40:15 -08:00
sbus
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scsi Merge branch '6.7/scsi-staging' into 6.7/scsi-fixes 2023-11-14 11:40:40 -05:00
sh sh: Remove superhyway bus support 2023-10-25 16:50:11 +02:00
siox
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slimbus
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soc powerpc updates for 6.7 2023-11-03 10:07:39 -10:00
soundwire soundwire updates for 6.7 2023-11-03 19:10:41 -10:00
spi spi: Fixes for v6.7 2023-11-10 11:44:38 -08:00
spmi spmi: rename spmi device lookup helper 2023-11-01 10:02:18 +00:00
ssb ssb: relax SSB_EMBEDDED dependencies 2023-10-19 10:26:26 +03:00
staging pwm: Changes for v6.7-rc1 2023-11-09 13:47:52 -08:00
target SCSI misc on 20231102 2023-11-02 15:13:50 -10:00
tc
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tee tee: make tee_class constant 2023-10-18 10:01:34 +02:00
thermal Thermal control updates for 6.7-rc1 2023-10-31 15:28:37 -10:00
thunderbolt thunderbolt: Only add device router DP IN to the head of the DP resource list 2023-11-17 13:05:57 +02:00
tty - removed AR7 platform support 2023-11-10 09:19:46 -08:00
ufs Merge branch '6.7/scsi-staging' into 6.7/scsi-fixes 2023-11-14 11:40:40 -05:00
uio
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usb USB-serial fixes for 6.7-rc3 2023-11-24 16:30:38 +00:00
vdpa vdpa_sim_blk: allocate the buffer zeroed 2023-11-01 09:31:16 -04:00
vfio Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
vhost vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
video fbdev: fsl-diu-fb: mark wr_reg_wa() static 2023-11-10 09:16:02 +01:00
virt configfs-tsm for v6.7 2023-11-04 15:58:13 -10:00
virtio vhost,virtio,vdpa,firmware: bugfixes 2023-11-16 07:39:37 -05:00
w1 nvmem: add explicit config option to read old syntax fixed OF cells 2023-10-21 19:19:06 +02:00
watchdog - removed AR7 platform support 2023-11-10 09:19:46 -08:00
xen xen: privcmd: Replace zero-length array with flex-array member and use __counted_by 2023-11-17 10:47:19 +01:00
zorro
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Kconfig - removed AR7 platform support 2023-11-10 09:19:46 -08:00
Makefile - removed AR7 platform support 2023-11-10 09:19:46 -08:00