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Nicolas Boichat 0a352554da iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging 
IOMMUs using ARMv7 short-descriptor format require page tables (level 1
and 2) to be allocated within the first 4GB of RAM, even on 64-bit
systems.

For level 1/2 pages, ensure GFP_DMA32 is used if CONFIG_ZONE_DMA32 is
defined (e.g.  on arm64 platforms).

For level 2 pages, allocate a slab cache in SLAB_CACHE_DMA32.  Note that
we do not explicitly pass GFP_DMA[32] to kmem_cache_zalloc, as this is
not strictly necessary, and would cause a warning in mm/sl*b.c, as we
did not update GFP_SLAB_BUG_MASK.

Also, print an error when the physical address does not fit in
32-bit, to make debugging easier in the future.

Link: http://lkml.kernel.org/r/20181210011504.122604-3-drinkcat@chromium.org
Fixes: ad67f5a654 ("arm64: replace ZONE_DMA with ZONE_DMA32")
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hsin-Yi Wang <hsinyi@chromium.org>
Cc: Huaisheng Ye <yehs1@lenovo.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Sasha Levin <Alexander.Levin@microsoft.com>
Cc: Tomasz Figa <tfiga@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yong Wu <yong.wu@mediatek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2019-03-29 10:01:37 -07:00
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accessibility
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acpi ACPI / utils: Drop reference in test for device presence 2019-03-19 22:34:21 +01:00
amba ARM: 8836/1: drivers: amba: Update component matching to use the CoreSight UCI values. 2019-02-26 11:23:49 +00:00
android
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ata SCSI misc on 20190306 2019-03-09 16:53:47 -08:00
atm
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auxdisplay auxdisplay: charlcd: make backlight initial state configurable 2019-03-17 08:48:45 +01:00
base Device properties framework fix for 5.1-rc2 2019-03-22 12:08:52 -07:00
bcma
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block for-linus-20190323 2019-03-23 10:14:42 -07:00
bluetooth Bluetooth: mediatek: add support for MediaTek MT7663U and MT7668U UART devices 2019-03-02 19:51:23 +01:00
bus ARM: SoC driver updates for 5.1 2019-03-06 09:41:12 -08:00
cdrom
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char Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-10 17:37:29 -07:00
clk We have a fairly balanced mix of clk driver updates and clk framework 2019-03-14 08:46:17 -07:00
clocksource clocksource/drivers/clps711x: Remove board support 2019-03-24 11:30:11 +01:00
connector connector: fix unsafe usage of ->real_parent 2019-03-08 15:06:38 -08:00
cpufreq cpufreq: intel_pstate: Fix up iowait_boost computation 2019-03-12 09:47:30 +01:00
cpuidle cpuidle: governor: Add new governors to cpuidle_governors again 2019-03-12 23:46:55 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-03-13 09:51:17 -07:00
dax device-dax for 5.1 2019-03-16 13:05:32 -07:00
dca
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devfreq
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dio
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dma dmaengine updates for v5.1-rc1 2019-03-14 09:11:54 -07:00
dma-buf
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edac Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-08 09:11:39 -08:00
eisa
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extcon
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firewire
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firmware memblock: drop memblock_alloc_*_nopanic() variants 2019-03-12 10:04:02 -07:00
fmc
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fpga
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fsi
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gnss
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gpio pci-v5.1-changes 2019-03-09 14:57:08 -08:00
gpu Merge branch 'drm-fixes-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2019-03-22 12:08:44 +10:00
hid Merge branch 'for-5.1/wacom' into for-linus 2019-03-05 15:43:05 +01:00
hsi
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hv Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00
hwmon hwmon: (ad7418) Add device tree probing 2019-02-25 09:06:00 -08:00
hwspinlock
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hwtracing ARM updates for 5.1-rc1 2019-03-15 14:37:46 -07:00
i2c i2c: i2c-designware-platdrv: Always use a dynamic adapter number 2019-03-13 18:07:10 +01:00
i3c - Add a /* fall-through */ comment in the dw-i3c-master driver 2019-03-04 19:05:02 -08:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide 2019-03-11 09:34:00 -07:00
idle
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iio - New Drivers 2019-03-08 10:02:58 -08:00
infiniband i40iw: Avoid panic when handling the inetdev event 2019-03-17 21:40:40 -03:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2019-03-11 10:57:11 -07:00
interconnect
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iommu iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging 2019-03-29 10:01:37 -07:00
ipack
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irqchip irqchip/irq-mvebu-sei: Make mvebu_sei_ap806_caps static 2019-03-21 16:43:00 +01:00
isdn mISDN: hfcpci: Test both vendor & device ID for Digium HFC4S 2019-03-18 18:32:44 -07:00
leds platform-drivers-x86 for v5.1-1 2019-03-10 13:16:37 -07:00
lightnvm pblk: fix max_io calculation 2019-03-07 08:59:26 -07:00
macintosh treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
mailbox mailbox: imx: keep MU irq working during suspend/resume 2019-03-11 02:51:43 -05:00
mcb
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md for-5.1/block-post-20190315 2019-03-16 12:36:39 -07:00
media DMA mapping updates for 5.1 2019-03-10 11:54:48 -07:00
memory
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memstick
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message
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mfd DMA mapping updates for 5.1 2019-03-10 11:54:48 -07:00
misc 5.1 Merge Window Pull Request 2019-03-09 15:53:03 -08:00
mmc mmc: renesas_sdhi: limit block count to 16 bit for old revisions 2019-03-21 11:41:46 +01:00
mtd This pull request contains updates for both UBI and UBIFS: 2019-03-13 09:34:35 -07:00
mux
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net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-03-27 12:22:57 -07:00
nfc
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ntb Fixes for switchtec debugability and mapping table entries, NTB 2019-03-15 14:32:59 -07:00
nubus
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nvdimm device-dax for 5.1 2019-03-16 13:05:32 -07:00
nvme for-5.1/block-post-20190315 2019-03-16 12:36:39 -07:00
nvmem Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00
of of: fix kmemleak crash caused by imbalance in early memory reservation 2019-03-12 10:04:02 -07:00
opp PM / OPP: Update performance state when freq == old_freq 2019-03-12 09:45:56 +01:00
oprofile
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parisc DMA mapping updates for 5.1 2019-03-10 11:54:48 -07:00
parport Revert "parport: daisy: use new parport device model" 2019-03-25 14:49:00 -07:00
pci IOMMU Updates for Linux v5.1 2019-03-10 12:29:52 -07:00
pcmcia
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perf arm64 updates for 5.1: 2019-03-10 10:17:23 -07:00
phy drm next pull request for 5.1 2019-03-08 08:23:15 -08:00
pinctrl This is the bulk of pin control changes for the v5.1 kernel cycle. 2019-03-11 11:12:50 -07:00
platform Chrome Platform fixes for v5.1-rc2 2019-03-19 11:28:15 -07:00
pnp ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting 2019-02-24 21:12:01 +01:00
power
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powercap
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pps
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ps3
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ptp Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
pwm pwm: atmel: Remove useless symbolic definitions 2019-03-04 12:52:49 +01:00
rapidio rapidio/mport_cdev: mark expected switch fall-through 2019-03-07 18:32:02 -08:00
ras
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regulator regulator: mc13xxx: Constify regulator_ops variables 2019-03-04 00:01:08 +00:00
remoteproc remoteproc updates for v5.1 2019-03-14 09:00:06 -07:00
reset
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rpmsg rpmsg: virtio: change header file sort style 2019-02-20 21:15:54 -08:00
rtc chrome platform changes for v5.1 2019-03-12 09:46:32 -07:00
s390 s390 update with improvements and bug fixes for 5.1-rc2 2019-03-28 08:35:32 -07:00
sbus
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scsi scsi: ibmvscsi: Fix empty event pool access during host removal 2019-03-20 20:13:17 -04:00
sfi
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sh
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siox
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slimbus
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sn
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soc This pull request brings in a build fix for arm64 with bcm2835 2019-03-18 10:31:24 -07:00
soundwire
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spi pci-v5.1-changes 2019-03-09 14:57:08 -08:00
spmi
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ssb
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staging media updates for v5.1-rc1 2019-03-09 14:45:54 -08:00
target SCSI misc on 20190315 2019-03-16 12:51:50 -07:00
tc
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tee ARM: SoC driver updates for 5.1 2019-03-06 09:41:12 -08:00
thermal Merge branches 'fixes' and 'thermal-intel' into next 2019-03-18 22:37:44 +08:00
thunderbolt
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tty dmaengine updates for v5.1-rc1 2019-03-14 09:11:54 -07:00
uio
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usb memblock: drop memblock_alloc_*_nopanic() variants 2019-03-12 10:04:02 -07:00
uwb
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vfio powerpc updates for 5.1 2019-03-07 12:56:26 -08:00
vhost virtio: fixes, cleanups 2019-03-10 12:47:57 -07:00
video fbdev changes for v5.1: 2019-03-15 14:22:59 -07:00
virt virt: vbox: Mark expected switch fall-through 2019-02-27 16:00:20 +01:00
virtio virtio: hint if callbacks surprisingly might sleep 2019-03-06 11:19:57 -05:00
visorbus
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vlynq
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vme
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w1
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watchdog linux-watchdog 5.1-rc1 tag 2019-03-11 11:22:15 -07:00
xen xen/balloon: Fix mapping PG_offline pages to user space 2019-03-15 15:35:35 +01:00
zorro
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Kconfig
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Makefile IOMMU Updates for Linux v5.1 2019-03-10 12:29:52 -07:00