Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Chris Wilson e0da1963fe drm/i915: Short-circuit i915_gem_wait_for_idle() if already idle ... If the device is asleep (no GT wakeref), we know the GPU is already idle. If we add an early return, we can avoid touching registers and checking hw state outside of the assumed GT wakelock. This prevents causing such errors whilst debugging: [ 2613.401647] RPM wakelock ref not held during HW access [ 2613.401684] ------------[ cut here ]------------ [ 2613.401720] WARNING: CPU: 5 PID: 7739 at drivers/gpu/drm/i915/intel_drv.h:1787 gen6_read32+0x21f/0x2b0 [i915] [ 2613.401731] Modules linked in: snd_hda_intel i915 vgem snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek coretemp snd_hda_codec_generic crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii mei_me lpc_ich mei prime_numbers [last unloaded: i915] [ 2613.401823] CPU: 5 PID: 7739 Comm: drv_missed_irq Tainted: G U 4.12.0-rc2-CI-CI_DRM_421+ #1 [ 2613.401825] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12 02/15/2016 [ 2613.401840] task: ffff880409e3a740 task.stack: ffffc900084dc000 [ 2613.401861] RIP: 0010:gen6_read32+0x21f/0x2b0 [i915] [ 2613.401863] RSP: 0018:ffffc900084dfce8 EFLAGS: 00010292 [ 2613.401869] RAX: 000000000000002a RBX: ffff8804016a8000 RCX: 0000000000000006 [ 2613.401871] RDX: 0000000000000006 RSI: ffffffff81cbf2d9 RDI: ffffffff81c9e3a7 [ 2613.401874] RBP: ffffc900084dfd18 R08: ffff880409e3afc8 R09: 0000000000000000 [ 2613.401877] R10: 000000008a1c483f R11: 0000000000000000 R12: 000000000000209c [ 2613.401879] R13: 0000000000000001 R14: ffff8804016a8000 R15: ffff8804016ac150 [ 2613.401882] FS: 00007f39ef3dd8c0(0000) GS:ffff88041fb40000(0000) knlGS:0000000000000000 [ 2613.401885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2613.401887] CR2: 00000000023717c8 CR3: 00000002e7b34000 CR4: 00000000001406e0 [ 2613.401889] Call Trace: [ 2613.401912] intel_engine_is_idle+0x76/0x90 [i915] [ 2613.401931] i915_gem_wait_for_idle+0xe6/0x1e0 [i915] [ 2613.401951] fault_irq_set+0x40/0x90 [i915] [ 2613.401970] i915_ring_test_irq_set+0x42/0x50 [i915] [ 2613.401976] simple_attr_write+0xc7/0xe0 [ 2613.401981] full_proxy_write+0x4f/0x70 [ 2613.401987] __vfs_write+0x23/0x120 [ 2613.401992] ? rcu_read_lock_sched_held+0x75/0x80 [ 2613.401996] ? rcu_sync_lockdep_assert+0x2a/0x50 [ 2613.401999] ? __sb_start_write+0xfa/0x1f0 [ 2613.402004] vfs_write+0xc5/0x1d0 [ 2613.402008] ? trace_hardirqs_on_caller+0xe7/0x1c0 [ 2613.402013] SyS_write+0x44/0xb0 [ 2613.402020] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 2613.402022] RIP: 0033:0x7f39eded6670 [ 2613.402025] RSP: 002b:00007fffdcdcb1a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 2613.402030] RAX: ffffffffffffffda RBX: ffffffff81470203 RCX: 00007f39eded6670 [ 2613.402033] RDX: 0000000000000001 RSI: 000000000041bc33 RDI: 0000000000000006 [ 2613.402036] RBP: ffffc900084dff88 R08: 00007f39ef3dd8c0 R09: 0000000000000001 [ 2613.402038] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000041bc33 [ 2613.402041] R13: 0000000000000006 R14: 0000000000000000 R15: 0000000000000000 [ 2613.402046] ? __this_cpu_preempt_check+0x13/0x20 [ 2613.402052] Code: 01 9b fa e0 0f ff e9 28 fe ff ff 80 3d 6a dd 0e 00 00 0f 85 29 fe ff ff 48 c7 c7 48 19 29 a0 c6 05 56 dd 0e 00 01 e8 da 9a fa e0 <0f> ff e9 0f fe ff ff b9 01 00 00 00 ba 01 00 00 00 44 89 e6 48 [ 2613.402199] ---[ end trace 31f0cfa93ab632bf ]--- Fixes: 25112b64b3 ("drm/i915: Wait for all engines to be idle as part of i915_gem_wait_for_idle()") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170530121334.17364-1-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit 863e9fde1a) Signed-off-by: Jani Nikula <jani.nikula@intel.com>		2017-06-07 16:30:54 +03:00
..
accessibility
acpi	Merge branches 'acpi-button', 'acpica' and 'acpi-sysfs'	2017-06-03 00:03:29 +02:00
amba
android
ata	ARM: SoC driver updates	2017-05-09 10:01:15 -07:00
atm
auxdisplay
base	Merge branches 'pm-sleep' and 'powercap'	2017-05-22 20:32:05 +02:00
bcma
block	A small fix for rbd FALLOC_FL_ZERO_RANGE/PUNCH_HOLE handling breakage	2017-06-02 12:03:07 -07:00
bluetooth	Bluetooth: hci_ldisc: Add protocol check to hci_uart_tx_wakeup()	2017-04-30 12:22:14 +02:00
bus
cdrom
char	Fix a race on architectures with prioritized interrupts (such as m68k)	2017-06-02 16:19:47 -07:00
clk	Sort of on the quieter side this time, which is probably due more	2017-05-10 13:38:18 -07:00
clocksource	Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-12 10:43:25 -07:00
connector
cpufreq	Merge branch 'pm-cpufreq'	2017-06-03 00:01:45 +02:00
cpuidle	Merge branches 'pm-domains', 'pm-cpuidle', 'pm-sleep' and 'powercap'	2017-05-09 23:21:46 +02:00
crypto	virtio: fixes, cleanups, performance	2017-05-10 11:33:08 -07:00
dax	dax: fix false CONFIG_BLOCK dependency	2017-05-13 16:18:21 -07:00
dca
devfreq
dio
dma	dmaengine: pl330: fix warning in pl330_remove	2017-06-02 11:49:44 +05:30
dma-buf
edac	EDAC, amd64: Fix reporting of Chip Select sizes on Fam17h	2017-05-03 16:27:36 +02:00
eisa
extcon
firewire
firmware	Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-06-02 08:51:53 -07:00
fmc
fpga
fsi
gpio	Annotation of module parameters that specify device settings	2017-05-10 19:13:03 -07:00
gpu	drm/i915: Short-circuit i915_gem_wait_for_idle() if already idle	2017-06-07 16:30:54 +03:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2017-06-02 09:23:56 -07:00
hsi
hv	char/misc patches for 4.12-rc1	2017-05-04 19:15:35 -07:00
hwmon	hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1	2017-06-03 03:55:43 -07:00
hwspinlock
hwtracing	drivers/hwtracing/intel_th/msu.c: use set_memory.h header	2017-05-08 17:15:14 -07:00
i2c	i2c: designware: Fix bogus sda_hold_time due to uninitialized vars	2017-05-22 19:22:19 -07:00
ide	ide: don't call memcpy with the same source and destination	2017-05-08 17:36:39 -04:00
idle	x86/intel_idle: add Gemini Lake support	2017-05-01 23:17:37 +02:00
iio	Annotation of module parameters that specify device settings	2017-05-10 19:13:03 -07:00
infiniband	RDMA/SA: Fix kernel panic in CMA request handler flow	2017-06-01 17:20:14 -04:00
input	Input: axp20x-pek - switch to acpi_dev_present and check for ACPI0011 too	2017-06-02 17:53:20 -07:00
iommu	iommu/mediatek: Include linux/dma-mapping.h	2017-05-17 14:51:54 +02:00
ipack
irqchip	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-21 11:45:26 -07:00
isdn	Annotation of module parameters that specify device settings	2017-05-10 19:13:03 -07:00
leds	leds: pca955x: Correct I2C Functionality	2017-05-22 21:12:44 +02:00
lguest
lightnvm	lightnvm: fix bad back free on error path	2017-05-04 07:53:04 -06:00
macintosh	DeviceTree for 4.12:	2017-05-05 19:33:07 -07:00
mailbox
mcb
md	- a DM verity fix for a mode when no salt is used	2017-06-02 11:50:37 -07:00
media	mtk-vcodec: Use designated initializers	2017-05-28 10:23:02 -07:00
memory	memory: omap-gpmc: Fix debug output for access width	2017-05-16 08:12:47 -07:00
memstick
message
mfd
misc	sgi-xp: Use designated initializers	2017-05-28 10:22:42 -07:00
mmc	This pull request contains fixes to make the WiFi work again for the ARM64	2017-05-26 09:05:35 -07:00
mtd	mtd: nand: make nand_ooblayout_lp_hamming_ops static	2017-05-22 09:42:29 +02:00
net	net: ethernet: ax88796: don't call free_irq without request_irq first	2017-05-26 14:55:38 -04:00
nfc
ntb
nubus
nvdimm	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm	2017-05-12 15:43:10 -07:00
nvme	nvme: Quirk APST on Intel 600P/P3100 devices	2017-05-26 11:53:02 +03:00
nvmem	ARM: SoC driver updates	2017-05-09 10:01:15 -07:00
of	MMC host:	2017-05-24 08:21:56 -07:00
oprofile
parisc
parport
pci	PCI/PM: Add needs_resume flag to avoid suspend complete optimization	2017-05-23 14:18:17 -05:00
pcmcia	Annotation of module parameters that specify device settings	2017-05-10 19:13:03 -07:00
perf	drivers/perf: arm_pmu_acpi: avoid perf IRQ init when guest PMU is off	2017-05-30 12:40:03 +01:00
phy
pinctrl	pinctrl: sunxi: Fix SPDIF function name for A83T	2017-05-23 11:31:27 +02:00
platform	char/misc patches for 4.12-rc1	2017-05-04 19:15:35 -07:00
pnp
power	power supply and reset changes for the v4.12 series (part 2)	2017-05-12 12:02:21 -07:00
powercap	PowerCap: Fix an error code in powercap_register_zone()	2017-05-14 13:30:05 +02:00
pps
ps3
ptp	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-01 16:15:18 -07:00
pwm
rapidio	char/misc patches for 4.12-rc1	2017-05-04 19:15:35 -07:00
ras
regulator	Merge remote-tracking branch 'regulator/topic/vctrl' into regulator-next	2017-04-30 22:17:44 +09:00
remoteproc	virtio: fixes, cleanups, performance	2017-05-10 11:33:08 -07:00
reset	ARM: SoC driver updates	2017-05-09 10:01:15 -07:00
rpmsg	virtio: fixes, cleanups, performance	2017-05-10 11:33:08 -07:00
rtc	Merge branches 'pm-sleep' and 'powercap'	2017-05-22 20:32:05 +02:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2017-05-16 09:24:44 -07:00
sbus
scsi	SCSI fixes on 20170603	2017-06-04 11:15:43 -07:00
sfi
sh
sn
soc	ARM: SoC fixes (and a cross-arch dt-include fix)	2017-05-19 13:36:56 -07:00
spi
spmi
ssb
staging	staging: fsl-dpaa2/eth: add ETHERNET dependency	2017-05-16 14:23:31 +02:00
target	iscsi-target: Always wait for kthread_should_stop() before kthread exit	2017-05-31 15:12:57 -07:00
tc
tee	Linux 4.12-rc1	2017-05-18 23:54:47 -07:00
thermal	thermal: broadcom: ns-thermal: default on iProc SoCs	2017-05-23 20:09:34 -07:00
thunderbolt
tty	Revert "tty: fix port buffer locking"	2017-06-04 10:23:25 +02:00
uio	uio: fix incorrect memory leak cleanup	2017-05-16 23:06:41 +02:00
usb	USB-serial fixes for v4.12-rc2	2017-05-19 10:10:07 +02:00
uwb	uwb: fix device quirk on big-endian hosts	2017-05-17 11:27:41 +02:00
vfio	powerpc updates for 4.12 part 1.	2017-05-05 11:36:44 -07:00
vhost	mm: support __GFP_REPEAT in kvmalloc_node for >32kB	2017-05-08 17:15:12 -07:00
video	fbdev changes for v4.12:	2017-05-11 11:12:26 -07:00
virt	drivers/virt/fsl_hypervisor.c: use get_user_pages_unlocked()	2017-05-08 17:15:10 -07:00
virtio	virtio: allow extra context per descriptor	2017-05-02 23:41:43 +03:00
vlynq
vme
w1
watchdog	watchdog: bcm281xx: Fix use of uninitialized spinlock.	2017-05-19 10:42:25 +02:00
xen	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-05-09 09:12:53 -07:00
zorro
Kconfig
Makefile	Merge branch 'tee/initial-merge' into fixes	2017-05-10 21:03:31 +02:00