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d039fc37ec
linux/drivers
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Mario Kleiner d039fc37ec drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5) 
commit 8e94a46c17 upstream.

External clients which import our bo's wait only
for exclusive dmabuf-fences, not on shared ones,
ditto for bo's which we import from external
providers and write to.

Therefore attach exclusive fences on prime shared buffers
if our exported buffer gets imported by an external
client, or if we import a buffer from an external
exporter.

See discussion in thread:
https://lists.freedesktop.org/archives/dri-devel/2016-October/122370.html

Prime export tested on Intel iGPU + AMD Tonga dGPU as
DRI3/Present Prime render offload, and with the Tonga
standalone as primary gpu.

v2: Add a wait for all shared fences before prime export,
    as suggested by Christian Koenig.

v3: - Mark buffer prime_exported in amdgpu_gem_prime_pin,
    so we only use the exclusive fence when exporting a
    bo to external clients like a separate iGPU, but not
    when exporting/importing from/to ourselves as part of
    regular DRI3 fd passing.

    - Propagate failure of reservation_object_wait_rcu back
    to caller.

v4: - Switch to a prime_shared_count counter instead of a
      flag, which gets in/decremented on prime_pin/unpin, so
      we can switch back to shared fences if all clients
      detach from our exported bo.

    - Also switch to exclusive fence for prime imported bo's.

v5: - Drop lret, instead use int ret -> long ret, as proposed
      by Christian.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95472
Tested-by: Mike Lothian <mike@fireburn.co.uk> (v1)
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>.
Cc: Christian König <christian.koenig@amd.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-11-26 09:54:52 +01:00
..
accessibility
acpi ACPI / APEI: Fix incorrect return value of ghes_proc() 2016-11-18 10:48:37 +01:00
amba
android ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct 2016-11-10 16:36:33 +01:00
ata libata: LITE-ON CX1-JB256-HP needs lower max_sectors 2016-08-10 11:49:29 +02:00
atm
auxdisplay
base platform: don't return 0 from platform_get_irq[_byname]() on error 2016-10-28 03:01:26 -04:00
bcma x86/quirks: Add early quirk to reset Apple AirPort card 2016-08-10 11:49:24 +02:00
block drbd: Fix kernel_sendmsg() usage - potential NULL deref 2016-11-18 10:48:35 +01:00
bluetooth Bluetooth: Add support for Intel Bluetooth device 8265 [8087:0a2b] 2016-09-15 08:27:49 +02:00
bus bus: arm-ccn: Fix XP watchpoint settings bitmask 2016-09-24 10:07:40 +02:00
cdrom
char hwrng: core - Don't use a stack buffer in add_early_randomness() 2016-11-18 10:48:36 +01:00
clk clk: qoriq: Don't allow CPU clocks higher than starting value 2016-11-18 10:48:35 +01:00
clocksource clocksource/drivers/sun4i: Clear interrupts after stopping timer in probe function 2016-09-24 10:07:35 +02:00
connector connector: bump skb->users before callback invocation 2016-01-04 21:46:45 -05:00
cpufreq cpufreq: intel_pstate: Fix unsafe HWP MSR access 2016-10-28 03:01:26 -04:00
cpuidle ARM: cpuidle: Fix error return code 2016-10-16 17:36:15 +02:00
crypto crypto: caam - do not register AES-XTS mode on LP units 2016-11-26 09:54:52 +01:00
dca
devfreq
dio
dma dmaengine: at_xdmac: fix spurious flag status for mem2mem transfers 2016-11-18 10:48:36 +01:00
dma-buf
edac EDAC: Increment correct counter in edac_inc_ue_error() 2016-09-07 08:32:41 +02:00
eisa
extcon extcon: max77843: Use correct size for reading the interrupt register 2016-05-04 14:48:54 -07:00
firewire firewire: net: fix fragmented datagram_size off-by-one 2016-11-10 16:36:35 +01:00
firmware efi: Expose non-blocking set_variable() wrapper to efivars 2016-05-04 14:48:49 -07:00
fmc
fpga
gpio gpio: mpc8xxx: Correct irq handler function 2016-10-28 03:01:25 -04:00
gpu drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5) 2016-11-26 09:54:52 +01:00
hid HID: usbhid: add ATEN CS962 to list of quirky devices 2016-11-10 16:36:37 +01:00
hsi
hv hv: do not lose pending heartbeat vmbus packets 2016-11-10 16:36:34 +01:00
hwmon hwmon: (adt7411) set bit 3 in CFG1 register 2016-10-07 15:23:42 +02:00
hwspinlock drivers/hwspinlock: fix race between radix tree insertion and lookup 2016-02-25 12:01:23 -08:00
hwtracing intel_th: Fix a deadlock in modprobing 2016-08-10 11:49:30 +02:00
i2c i2c: mux: fix up dependencies 2016-11-26 09:54:52 +01:00
ide
idle intel_idle: Support for Intel Xeon Phi Processor x200 Product Family 2016-09-15 08:27:46 +02:00
iio iio: orientation: hid-sensor-rotation: Add PM function (fix non working driver) 2016-11-18 10:48:35 +01:00
infiniband IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV 2016-10-07 15:23:47 +02:00
input Input: i8042 - add XMG C504 to keyboard reset table 2016-11-10 16:36:35 +01:00
iommu iommu/vt-d: Fix dead-locks in disable_dmar_iommu() path 2016-11-18 10:48:36 +01:00
ipack
irqchip irqchip/gicv3: Handle loop timeout proper 2016-10-28 03:01:33 -04:00
isdn ser_gigaset: remove unnecessary kfree() calls from release method 2015-12-15 13:24:21 -05:00
leds
lguest
lightnvm lightnvm: put bio before return 2016-09-24 10:07:35 +02:00
macintosh
mailbox
mcb mcb: Fixed bar number assignment for the gdd 2016-06-01 12:15:53 -07:00
md dm mirror: fix read error on recovery after default leg failure 2016-11-10 16:36:35 +01:00
media dib0700: fix nec repeat handling 2016-11-18 10:48:34 +01:00
memory memory: omap-gpmc: Fix omap gpmc EXTRADELAY timing 2016-07-27 09:47:35 -07:00
memstick memstick: rtsx_usb_ms: Manage runtime PM when accessing the device 2016-10-28 03:01:35 -04:00
message
mfd mfd: intel-lpss: Do not put device in reset state on suspend 2016-11-26 09:54:52 +01:00
misc mei: bus: fix received data size check in NFC fixup 2016-11-18 10:48:36 +01:00
mmc mmc: mxs: Initialize the spinlock prior to using it 2016-11-18 10:48:37 +01:00
mtd ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap() 2016-11-10 16:36:37 +01:00
net bgmac: stop clearing DMA receive control register right after it is set 2016-11-21 10:06:39 +01:00
nfc mei: bus: fix received data size check in NFC fixup 2016-11-18 10:48:36 +01:00
ntb
nubus
nvdimm libnvdimm, pfn: fix uuid validation 2016-04-20 15:41:54 +09:00
nvme nvme: Call pci_disable_device on the error path. 2016-09-15 08:27:51 +02:00
nvmem nvmem: mxs-ocotp: fix buffer overflow in read 2016-05-11 11:21:21 +02:00
of of: silence warnings due to max() usage 2016-11-15 07:46:39 +01:00
oprofile
parisc parisc iommu: fix panic due to trying to allocate too large region 2015-12-12 16:07:25 +01:00
parport
pci PCI: Mark Atheros AR9580 to avoid bus reset 2016-10-28 03:01:26 -04:00
pcmcia pcmcia: db1xxx_ss: fix last irq_to_gpio user 2016-04-20 15:42:09 +09:00
perf drivers/perf: arm_pmu: Fix leak in error path 2016-10-07 15:23:41 +02:00
phy phy: core: fix wrong err handle for phy_power_on 2016-03-03 15:07:28 -08:00
pinctrl pinctrl: cherryview: Prevent possible interrupt storm on resume 2016-11-18 10:48:34 +01:00
platform toshiba-wmi: Fix loading the driver on non Toshiba laptops 2016-11-18 10:48:35 +01:00
pnp PNP: Add Broadwell to Intel MCH size workaround 2016-08-16 09:30:48 +02:00
power power: bq24257: Fix use of uninitialized pointer bq->charger 2016-10-31 04:14:00 -06:00
powercap powercap / RAPL: fix BIOS lock check 2015-12-12 02:31:11 +01:00
pps pps: do not crash when failed to register 2016-08-10 11:49:25 +02:00
ps3
ptp
pwm pwm: Unexport children before chip removal 2016-11-10 16:36:37 +01:00
rapidio
ras
regulator regulator: tps65910: Work around silicon erratum SWCZ010 2016-10-28 03:01:25 -04:00
remoteproc remoteproc: Fix potential race condition in rproc_add 2016-08-20 18:09:20 +02:00
reset
rpmsg
rtc rtc: s3c: Add s3c_rtc_{enable/disable}_clk in s3c_rtc_setfreq() 2016-08-20 18:09:27 +02:00
s390 s390/con3270: fix insufficient space padding 2016-10-31 04:14:00 -06:00
sbus
scsi scsi: mpt3sas: Fix for block device of raid exists even after deleting raid disk 2016-11-18 10:48:36 +01:00
sfi
sh drivers: sh: Restore legacy clock domain on SuperH platforms 2016-03-09 15:34:49 -08:00
sn
soc soc: qcom/spm: shut up uninitialized variable warning 2016-09-24 10:07:42 +02:00
spi spi: spi-fsl-dspi: Drop extra spi_master_put in device remove function 2016-10-31 04:13:59 -06:00
spmi
ssb
staging staging: nvec: remove managed resource from PS2 driver 2016-11-18 10:48:35 +01:00
target target: Don't override EXTENDED_COPY xcopy_pt_cmd SCSI status code 2016-10-28 03:01:36 -04:00
tc
thermal thermal: cpu_cooling: fix improper order during initialization 2016-07-27 09:47:29 -07:00
thunderbolt thunderbolt: Fix double free of drom buffer 2016-06-01 12:15:53 -07:00
tty sparc: serial: sunhv: fix a double lock bug 2016-11-21 10:06:40 +01:00
uio uio: fix dmem_region_start computation 2016-10-31 04:13:59 -06:00
usb usb: gadget: u_ether: remove interrupt throttling 2016-11-18 10:48:35 +01:00
uwb
vfio vfio/pci: Fix NULL pointer oops in error interrupt setup handling 2016-09-07 08:32:37 +02:00
vhost vhost/scsi: fix reuse of &vq->iov[out] in response 2016-09-15 08:27:53 +02:00
video fbdev/efifb: Fix 16 color palette entry calculation 2016-10-28 03:01:29 -04:00
virt
virtio virtio_ring: Make interrupt suppression spec compliant 2016-11-10 16:36:34 +01:00
vlynq
vme
w1 w1:omap_hdq: fix regression 2016-08-20 18:09:22 +02:00
watchdog watchdog: rc32434_wdt: fix ioctl error handling 2016-04-12 09:08:54 -07:00
xen xenbus: don't look up transaction IDs for ordinary writes 2016-10-31 04:13:58 -06:00
zorro
Kconfig
Makefile