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OpenCloudOS-Kernel
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Alexey Kardashevskiy a940904443 powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains 
Up until now PPC64 managed to avoid using iommu_ops. The VFIO driver
uses a SPAPR TCE sub-driver and all iommu_ops uses were kept in the
Type1 VFIO driver. Recent development added 2 uses of iommu_ops to the
generic VFIO which broke POWER:
  - a coherency capability check;
  - blocking IOMMU domain - iommu_group_dma_owner_claimed()/...

This adds a simple iommu_ops which reports support for cache coherency
and provides a basic support for blocking domains. No other domain types
are implemented so the default domain is NULL.

Since now iommu_ops controls the group ownership, this takes it out of
VFIO.

This adds an IOMMU device into a pci_controller (=PHB) and registers it
in the IOMMU subsystem, iommu_ops is registered at this point. This
setup is done in postcore_initcall_sync.

This replaces iommu_group_add_device() with iommu_probe_device() as the
former misses necessary steps in connecting PCI devices to IOMMU
devices. This adds a comment about why explicit iommu_probe_device() is
still needed.

The previous discussion is here:
  https://lore.kernel.org/r/20220707135552.3688927-1-aik@ozlabs.ru/
  https://lore.kernel.org/r/20220701061751.1955857-1-aik@ozlabs.ru/

Fixes: e8ae0e140c ("vfio: Require that devices support DMA cache coherence")
Fixes: 70693f4708 ("vfio: Set DMA ownership for VFIO devices")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
[mpe: Fix CONFIG_IOMMU_API=n build]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/2000135730.16998523.1678123860135.JavaMail.zimbra@raptorengineeringinc.com
 		2023-03-15 00:51:46 +11:00
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accel - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
accessibility
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acpi More ACPI updates for 6.3-rc1 2023-03-03 10:36:01 -08:00
amba
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android Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
ata ata: ahci: Revert "ata: ahci: Add Tiger Lake UP{3,4} AHCI controller" 2023-03-03 18:43:02 +09:00
atm
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auxdisplay
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base A set of updates for the interrupt susbsystem: 2023-03-05 11:19:16 -08:00
bcma
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block block-6.3-2023-03-03 2023-03-03 10:21:39 -08:00
bluetooth
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bus ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
cdrom
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char tpm: disable hwrng for fTPM on some AMD designs 2023-03-12 23:28:10 +02:00
clk We have one small patch to the clk core this time around. It fixes a corner 2023-02-25 15:16:23 -08:00
clocksource Updates for timekeeping, timers and clockevent/source drivers: 2023-02-21 09:45:13 -08:00
comedi
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connector
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counter
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cpufreq More power management updates for 6.3-rc1 2023-03-03 10:30:58 -08:00
cpuidle ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
crypto This push fixes a regression in the caam driver. 2023-03-05 11:32:30 -08:00
cxl cxl for v6.3 2023-02-25 09:19:23 -08:00
dax cxl for v6.3 2023-02-25 09:19:23 -08:00
dca
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devfreq
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dio
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dma dmaengine updates for v6.3 2023-02-24 17:18:54 -08:00
dma-buf dma-buf: make kobj_type structure constant 2023-02-17 09:16:34 +01:00
edac - Add a driver for the RAS functionality on Xilinx's on chip memory 2023-02-21 08:10:03 -08:00
eisa
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extcon
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firewire Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
firmware ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
fpga Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
fsi
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gnss
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gpio Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
gpu Merge tag 'amd-drm-fixes-6.3-2023-03-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes 2023-03-10 14:17:35 +10:00
greybus
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hid for-linus-2023030901 2023-03-09 10:17:23 -08:00
hsi Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hte
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hv Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
hwmon - Core Frameworks 2023-02-23 15:03:05 -08:00
hwspinlock
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hwtracing Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
i2c i2c: dev: Fix bus callback return values 2023-03-09 22:07:52 +01:00
i3c I3C for 6.3 2023-02-28 16:05:01 -08:00
idle Power management updates for 6.3-rc1 2023-02-21 12:13:58 -08:00
iio Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
infiniband v6.3 RDMA pull request 2023-02-24 15:11:03 -08:00
input ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
interconnect SoC: DT changes for 6.3 2023-02-20 15:49:56 -08:00
iommu ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
ipack Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
irqchip ARM: 2023-02-25 11:30:21 -08:00
isdn
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leds - Remove Drivers 2023-02-23 15:09:31 -08:00
macintosh powerpc updates for 6.3 2023-02-25 11:00:06 -08:00
mailbox mailbox: qcom-apcs-ipc: add IPQ5332 APSS clock support 2023-02-23 14:47:13 -06:00
mcb
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md flexible-array transformations for 6.3-rc1 2023-02-25 12:53:42 -08:00
media media: i2c: ov2685: convert to i2c's .probe_new() 2023-03-09 21:59:04 +01:00
memory ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
memstick MMC core: 2023-02-27 09:47:26 -08:00
message
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mfd Including fixes from wireless and netfilter. 2023-02-27 14:05:08 -08:00
misc misc: ad525x_dpot-i2c: Convert to i2c's .probe_new() 2023-03-09 21:58:45 +01:00
mmc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
most
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mtd * regression fix for the notifier handling of the I2C core 2023-03-11 09:24:05 -08:00
mux
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net Networking fixes for 6.3-rc2, including fixes from netfilter, bpf 2023-03-09 10:56:58 -08:00
nfc nfc: fdp: add null check of devm_kmalloc_array in fdp_nci_i2c_read_device_properties 2023-02-28 11:48:28 +01:00
ntb
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nubus
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nvdimm virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
nvme block-6.3-2023-03-03 2023-03-03 10:21:39 -08:00
nvmem
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of IOMMU Updates for Linux v6.3: 2023-02-24 13:40:13 -08:00
opp OPP: fix error checking in opp_migrate_dentry() 2023-02-16 13:48:53 +01:00
parisc
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parport Char/Misc and other driver subsystem changes for 6.3-rc1 2023-02-24 12:47:33 -08:00
pci A set of updates for the interrupt susbsystem: 2023-03-05 11:19:16 -08:00
pcmcia Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
peci
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perf RISC-V Patches for the 6.3 Merge Window, Part 2 2023-03-03 09:32:51 -08:00
phy ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
pinctrl ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
platform platform: mellanox: mlx-platform: Initialize shift variable to 0 2023-03-07 12:08:30 +01:00
pnp
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power power supply changes for the v6.3 series (part 2) 2023-03-03 16:33:28 -08:00
powercap More power management updates for 6.3-rc1 2023-03-03 10:30:58 -08:00
pps
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ps3
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ptp ptp: vclock: use mutex to fix "sleep on atomic" bug 2023-02-22 21:23:48 -08:00
pwm pwm: dwc: Use devm_pwmchip_add() 2023-02-20 12:26:35 +01:00
rapidio
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ras
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regulator regulator: Fixes for v6.3 2023-03-02 09:21:25 -08:00
remoteproc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
reset
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rpmsg rpmsg updates for v6.3 2023-02-26 12:10:28 -08:00
rtc RTC for 6.3 2023-03-03 09:15:50 -08:00
s390 SCSI misc on 20230303 2023-03-03 14:41:50 -08:00
sbus
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scsi SCSI fixes on 20230310 2023-03-10 20:45:53 -08:00
sh sh updates for v6.3 2023-03-01 09:44:22 -08:00
siox
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slimbus
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soc ARM: SoC drivers for 6.3 2023-02-27 10:04:49 -08:00
soundwire soundwire updates for 6.3 2023-02-24 17:29:52 -08:00
spi spi: Fixes for v6.3 2023-03-02 09:25:38 -08:00
spmi
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ssb
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staging staging: r8188eu: delete driver 2023-03-09 10:06:28 +01:00
target scsi: target: iscsi: Fix an error message in iscsi_check_key() 2023-03-06 16:50:42 -05:00
tc
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tee Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
thermal thermal: intel: int340x: processor_thermal: Fix deadlock 2023-03-03 20:34:49 +01:00
thunderbolt Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
tty serial: sc16is7xx: Convert to i2c's .probe_new() 2023-03-09 21:58:53 +01:00
ufs scsi: ufs: mcq: qcom: Clean the return path of ufs_qcom_mcq_config_resource() 2023-03-06 18:33:12 -05:00
uio - Daniel Verkamp has contributed a memfd series ("mm/memfd: add 2023-02-23 17:09:35 -08:00
usb phy-for-6.3 2023-02-24 17:22:11 -08:00
vdpa virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
vfio powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains 2023-03-15 00:51:46 +11:00
vhost virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
video TTY/Serial driver updates for 6.3-rc1 2023-02-24 12:17:14 -08:00
virt virt/sev-guest: Return -EIO if certificate buffer is not large enough 2023-03-01 10:17:46 +01:00
virtio virtio,vhost,vdpa: features, fixes 2023-02-25 11:48:02 -08:00
vlynq
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w1 w1: ds2482: Convert to i2c's .probe_new() 2023-03-09 21:58:57 +01:00
watchdog linux-watchdog 6.3-rc1 tag 2023-03-02 11:12:01 -08:00
xen Driver core changes for 6.3-rc1 2023-02-24 12:58:55 -08:00
zorro
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Kconfig
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Makefile Kbuild updates for v6.3 2023-02-26 11:53:25 -08:00