Jiang Liu b5f82ddf22 iommu/vt-d: Fix error in detect ATS capability ... Current Intel IOMMU driver only matches a PCIe root port with the first DRHD unit with the samge segment number. It will report false result if there are multiple DRHD units with the same segment number, thus fail to detect ATS capability for some PCIe devices. This patch refines function dmar_find_matched_atsr_unit() to search all DRHD units with the same segment number. An example DMAR table entries as below: [1D0h 0464 2] Subtable Type : 0002 <Root Port ATS Capability> [1D2h 0466 2] Length : 0028 [1D4h 0468 1] Flags : 00 [1D5h 0469 1] Reserved : 00 [1D6h 0470 2] PCI Segment Number : 0000 [1D8h 0472 1] Device Scope Entry Type : 02 [1D9h 0473 1] Entry Length : 08 [1DAh 0474 2] Reserved : 0000 [1DCh 0476 1] Enumeration ID : 00 [1DDh 0477 1] PCI Bus Number : 00 [1DEh 0478 2] PCI Path : [02, 00] [1E0h 0480 1] Device Scope Entry Type : 02 [1E1h 0481 1] Entry Length : 08 [1E2h 0482 2] Reserved : 0000 [1E4h 0484 1] Enumeration ID : 00 [1E5h 0485 1] PCI Bus Number : 00 [1E6h 0486 2] PCI Path : [03, 00] [1E8h 0488 1] Device Scope Entry Type : 02 [1E9h 0489 1] Entry Length : 08 [1EAh 0490 2] Reserved : 0000 [1ECh 0492 1] Enumeration ID : 00 [1EDh 0493 1] PCI Bus Number : 00 [1EEh 0494 2] PCI Path : [03, 02] [1F0h 0496 1] Device Scope Entry Type : 02 [1F1h 0497 1] Entry Length : 08 [1F2h 0498 2] Reserved : 0000 [1F4h 0500 1] Enumeration ID : 00 [1F5h 0501 1] PCI Bus Number : 00 [1F6h 0502 2] PCI Path : [03, 03] [1F8h 0504 2] Subtable Type : 0002 <Root Port ATS Capability> [1FAh 0506 2] Length : 0020 [1FCh 0508 1] Flags : 00 [1FDh 0509 1] Reserved : 00 [1FEh 0510 2] PCI Segment Number : 0000 [200h 0512 1] Device Scope Entry Type : 02 [201h 0513 1] Entry Length : 08 [202h 0514 2] Reserved : 0000 [204h 0516 1] Enumeration ID : 00 [205h 0517 1] PCI Bus Number : 40 [206h 0518 2] PCI Path : [02, 00] [208h 0520 1] Device Scope Entry Type : 02 [209h 0521 1] Entry Length : 08 [20Ah 0522 2] Reserved : 0000 [20Ch 0524 1] Enumeration ID : 00 [20Dh 0525 1] PCI Bus Number : 40 [20Eh 0526 2] PCI Path : [02, 02] [210h 0528 1] Device Scope Entry Type : 02 [211h 0529 1] Entry Length : 08 [212h 0530 2] Reserved : 0000 [214h 0532 1] Enumeration ID : 00 [215h 0533 1] PCI Bus Number : 40 [216h 0534 2] PCI Path : [03, 00] [218h 0536 2] Subtable Type : 0002 <Root Port ATS Capability> [21Ah 0538 2] Length : 0020 [21Ch 0540 1] Flags : 00 [21Dh 0541 1] Reserved : 00 [21Eh 0542 2] PCI Segment Number : 0000 [220h 0544 1] Device Scope Entry Type : 02 [221h 0545 1] Entry Length : 08 [222h 0546 2] Reserved : 0000 [224h 0548 1] Enumeration ID : 00 [225h 0549 1] PCI Bus Number : 80 [226h 0550 2] PCI Path : [02, 00] [228h 0552 1] Device Scope Entry Type : 02 [229h 0553 1] Entry Length : 08 [22Ah 0554 2] Reserved : 0000 [22Ch 0556 1] Enumeration ID : 00 [22Dh 0557 1] PCI Bus Number : 80 [22Eh 0558 2] PCI Path : [02, 02] [230h 0560 1] Device Scope Entry Type : 02 [231h 0561 1] Entry Length : 08 [232h 0562 2] Reserved : 0000 [234h 0564 1] Enumeration ID : 00 [235h 0565 1] PCI Bus Number : 80 [236h 0566 2] PCI Path : [03, 00] [238h 0568 2] Subtable Type : 0002 <Root Port ATS Capability> [23Ah 0570 2] Length : 0020 [23Ch 0572 1] Flags : 00 [23Dh 0573 1] Reserved : 00 [23Eh 0574 2] PCI Segment Number : 0000 [240h 0576 1] Device Scope Entry Type : 02 [241h 0577 1] Entry Length : 08 [242h 0578 2] Reserved : 0000 [244h 0580 1] Enumeration ID : 00 [245h 0581 1] PCI Bus Number : C0 [246h 0582 2] PCI Path : [02, 00] [248h 0584 1] Device Scope Entry Type : 02 [249h 0585 1] Entry Length : 08 [24Ah 0586 2] Reserved : 0000 [24Ch 0588 1] Enumeration ID : 00 [24Dh 0589 1] PCI Bus Number : C0 [24Eh 0590 2] PCI Path : [02, 02] [250h 0592 1] Device Scope Entry Type : 02 [251h 0593 1] Entry Length : 08 [252h 0594 2] Reserved : 0000 [254h 0596 1] Enumeration ID : 00 [255h 0597 1] PCI Bus Number : C0 [256h 0598 2] PCI Path : [03, 00] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>		2014-03-04 17:51:04 +01:00
..
accessibility
acpi	ACPI / processor: Rework processor throttling with work_on_cpu()	2014-02-27 00:21:05 +01:00
amba
ata	PCI updates for v3.14:	2014-02-20 12:46:24 -08:00
atm
auxdisplay
base	PM / hibernate: Fix restore hang in freeze_processes()	2014-02-26 01:13:15 +01:00
bcma	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2014-01-30 17:20:32 -08:00
block	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2014-02-14 10:45:18 -08:00
bluetooth
bus	drivers: bus: fix CCI driver kcalloc call parameters swap	2014-01-31 15:15:13 -08:00
cdrom	Merge branch 'for-3.14/drivers' of git://git.kernel.dk/linux-block	2014-01-30 11:40:10 -08:00
char	Char/Misc fixes for 3.14-rc3	2014-02-14 16:13:00 -08:00
clk	The second half of the clock framework pull requeust for 3.14 is	2014-01-28 18:44:53 -08:00
clocksource	clocksource: Kona: Print warning rather than panic	2014-02-06 16:01:40 +01:00
connector
cpufreq	intel_pstate: Change busy calculation to use fixed point math.	2014-02-26 00:56:49 +01:00
cpuidle	powerpc/powernv/cpuidle: Back-end cpuidle driver for powernv platform.	2014-01-29 17:02:24 +11:00
crypto	crypto/nx/nx-842: Fix handling of vmalloc addresses	2014-02-11 11:24:49 +11:00
dca
devfreq	Merge branches 'pm-cpufreq' and 'pm-devfreq'	2014-01-29 11:48:23 +01:00
dio
dma	Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma	2014-03-01 21:30:43 -06:00
edac	i7300_edac: Fix device reference count	2014-02-25 09:43:13 +01:00
eisa	Revert "EISA: Initialize device before its resources"	2014-01-17 14:57:29 -07:00
extcon	ASoC: dapm: Add locking to snd_soc_dapm_xxxx_pin functions	2014-02-20 18:40:07 +09:00
firewire	firewire: Enable remote DMA above 4 GB	2014-01-20 01:11:13 +01:00
firmware	firmware/google: drop 'select EFI' to avoid recursive dependency	2014-01-27 21:02:40 -08:00
fmc	drivers/fmc/fmc-write-eeprom.c: fix decimal permissions	2014-02-25 15:25:43 -08:00
gpio	gpio: tb10x: GPIO_TB10X needs to select GENERIC_IRQ_CHIP	2014-02-05 11:13:59 +01:00
gpu	Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux	2014-03-02 15:25:45 -08:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2014-02-18 16:29:46 -08:00
hsi
hv	Drivers: hv: vmbus: Don't timeout during the initial connection with host	2014-02-07 08:27:34 -08:00
hwmon	hwmon: (max1668) Fix writing the minimum temperature	2014-02-18 15:53:49 -08:00
hwspinlock
i2c	i2c: mv64xxx: refactor message start to ensure proper initialization	2014-02-15 15:42:31 +01:00
ide	drivers: ide: Include appropriate header file in ide-pio-blacklist.c	2014-01-28 23:35:09 -08:00
idle	ACPI and power management updates for 3.14-rc1	2014-01-24 15:51:02 -08:00
iio	iio:gyro: bug on L3GD20H gyroscope support	2014-02-18 10:24:49 +00:00
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-02-15 16:18:47 -08:00
input	ASoC: dapm: Add locking to snd_soc_dapm_xxxx_pin functions	2014-02-20 18:40:07 +09:00
iommu	iommu/vt-d: Fix error in detect ATS capability	2014-03-04 17:51:04 +01:00
ipack
irqchip	irq-metag*: stop set_affinity vectoring to offline cpus	2014-02-25 22:35:06 +00:00
isdn	isdn/hisax: hex vs decimal typo in prfeatureind()	2014-02-06 21:18:06 -08:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2014-01-28 18:53:01 -08:00
lguest
macintosh	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2014-01-27 21:11:26 -08:00
mailbox	drivers/mailbox/omap: make mbox->irq signed for error handling	2014-01-23 16:36:53 -08:00
md	dm cache: fix truncation bug when mapping I/O to >2TB fast device	2014-02-28 09:23:02 -05:00
media	[media] adv7842: Composite free-run platfrom-data fix	2014-02-04 06:46:10 -02:00
memory
memstick	drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug	2014-01-23 16:37:04 -08:00
message	drivers/message/i2o/i2o_config.c: fix deadlock in compat_ioctl(I2OGETIOPS)	2014-02-10 16:01:40 -08:00
mfd	sound fixes for 3.14-rc4	2014-02-21 09:55:32 -08:00
misc	mei: set client's read_cb to NULL when flow control fails	2014-02-18 10:07:36 -08:00
mmc	Fix uses of dma_max_pfn() when converting to a limiting address	2014-02-17 23:08:41 +00:00
mtd	Just a single fix for the UBI module unload path which makes sure we do not	2014-02-27 10:36:50 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-02-18 15:52:43 -08:00
nfc
ntb
nubus
of	Device tree compatible match order bug fix	2014-02-21 14:35:05 -08:00
oprofile
parisc
parport	TTY/Serial driver patches for 3.14-rc1	2014-01-20 16:05:23 -08:00
pci	PCI updates for v3.14:	2014-02-20 12:46:24 -08:00
pcmcia	PCI changes for the v3.14 merge window:	2014-01-22 16:39:28 -08:00
phy	phy: let phy_provider_register be the last step in registering PHY	2014-02-18 12:13:16 -08:00
pinctrl	pinctrl: tegra: return correct error type	2014-02-06 14:21:19 +01:00
platform	platform/chrome: Cleanups and improvements	2014-01-29 20:06:01 -08:00
pnp
power	Few fixes:	2014-02-14 10:32:28 -08:00
powercap
pps
ps3
ptp
pwm	pwm: lp3943: Fix potential memory leak during request	2014-02-26 15:45:12 +01:00
rapidio
regulator	Merge remote-tracking branches 'regulator/fix/da9063', 'regulator/fix/max14577' and 'regulator/fix/s5m8767' into regulator-linus	2014-02-23 12:22:18 +09:00
remoteproc
reset
rpmsg
rtc	Merge branch 'akpm' (incoming from Andrew)	2014-01-23 19:11:50 -08:00
s390	s390/cio: Fix missing subchannels after CHPID configure on	2014-02-21 08:48:33 +01:00
sbus	Sparc: sparc_cpu_model isn't in asm/system.h any more [ver #2]	2014-02-20 13:34:11 -05:00
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-03-01 21:33:09 -06:00
sfi
sh
sn
spi	Merge remote-tracking branches 'spi/fix/doc', 'spi/fix/nuc900' and 'spi/fix/rspi' into spi-linus	2014-02-11 12:08:27 +00:00
ssb	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2014-01-30 17:20:32 -08:00
staging	Fourth set of IIO fixes for the 3.14 kernel.	2014-02-28 17:08:03 -08:00
target	Target/sbc: Don't use sg as iterator in sbc_verify_read	2014-02-23 16:35:32 -08:00
tc
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2014-01-24 17:13:49 -08:00
tty	Revert "tty: Set correct tty name in 'active' sysfs attribute"	2014-02-22 14:31:04 -08:00
uio
usb	usb: ehci: fix deadlock when threadirqs option is used	2014-02-26 15:46:42 -08:00
uwb
vfio	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2014-01-27 21:11:26 -08:00
vhost	Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-03-01 21:33:09 -06:00
video	video: Kconfig: Allow more broad selection of the imxfb framebuffer driver.	2014-02-14 10:44:52 +02:00
virt
virtio	A few simple fixes. Quiet cycle.	2014-01-22 22:24:35 -08:00
vlynq	drivers/vlynq/vlynq.c: fix another resource size off by 1 error	2014-01-23 16:36:55 -08:00
vme	VME: Correct read/write alignment algorithm	2014-02-07 08:16:14 -08:00
w1	drivers/w1/masters/w1-gpio.c: add strong pullup emulation	2014-01-23 16:37:04 -08:00
watchdog	watchdog: w83697hf_wdt: return ENODEV if no device was found	2014-02-21 20:36:46 +01:00
xen	Bug-fix:	2014-02-12 12:28:05 -08:00
zorro
Kconfig
Makefile