Huacai Chen 4408b59eea drm/amd/display: Protect FPU in dml21_copy() ... Commit 7da55c27e7 ("drm/amd/display: Remove incorrect FP context start") removes the FP context protection of dml2_create(), and it said "All the DC_FP_START/END should be used before call anything from DML2". However, dml21_copy() are not protected from their callers, causing such errors: do_fpu invoked from kernel context![#1]: CPU: 0 UID: 0 PID: 240 Comm: kworker/0:5 Not tainted 6.14.0-rc6+ #1 Workqueue: events work_for_cpu_fn pc ffff80000318bd2c ra ffff80000315750c tp 9000000105910000 sp 9000000105913810 a0 0000000000000000 a1 0000000000000002 a2 900000013140d728 a3 900000013140d720 a4 0000000000000000 a5 9000000131592d98 a6 0000000000017ae8 a7 00000000001312d0 t0 9000000130751ff0 t1 ffff800003790000 t2 ffff800003790000 t3 9000000131592e28 t4 000000000004c6a8 t5 00000000001b7740 t6 0000000000023e38 t7 0000000000249f00 t8 0000000000000002 u0 0000000000000000 s9 900000012b010000 s0 9000000131400000 s1 9000000130751fd8 s2 ffff800003408000 s3 9000000130752c78 s4 9000000131592da8 s5 9000000131592120 s6 9000000130751ff0 s7 9000000131592e28 s8 9000000131400008 ra: ffff80000315750c dml2_top_soc15_initialize_instance+0x20c/0x300 [amdgpu] ERA: ffff80000318bd2c mcg_dcn4_build_min_clock_table+0x14c/0x600 [amdgpu] CRMD: 000000b0 (PLV0 -IE -DA +PG DACF=CC DACM=CC -WE) PRMD: 00000004 (PPLV0 +PIE -PWE) EUEN: 00000000 (-FPE -SXE -ASXE -BTE) ECFG: 00071c1d (LIE=0,2-4,10-12 VS=7) ESTAT: 000f0000 [FPD] (IS= ECode=15 EsubCode=0) PRID: 0014d010 (Loongson-64bit, Loongson-3C6000/S) Process kworker/0:5 (pid: 240, threadinfo=00000000f1700428, task=0000000020d2e962) Stack : 0000000000000000 0000000000000000 0000000000000000 9000000130751fd8 9000000131400000 ffff8000031574e0 9000000130751ff0 0000000000000000 9000000131592e28 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 f9175936df5d7fd2 900000012b00ff08 900000012b000000 ffff800003409000 ffff8000034a1780 90000001019634c0 900000012b000010 90000001307beeb8 90000001306b0000 0000000000000001 ffff8000031942b4 9000000130780000 90000001306c0000 9000000130780000 ffff8000031c276c 900000012b044bd0 ffff800003408000 ... Call Trace: [<ffff80000318bd2c>] mcg_dcn4_build_min_clock_table+0x14c/0x600 [amdgpu] [<ffff800003157508>] dml2_top_soc15_initialize_instance+0x208/0x300 [amdgpu] [<ffff8000031942b0>] dml21_create_copy+0x30/0x60 [amdgpu] [<ffff8000031c2768>] dc_state_create_copy+0x68/0xe0 [amdgpu] [<ffff800002e98ea0>] amdgpu_dm_init+0x8c0/0x2060 [amdgpu] [<ffff800002e9a658>] dm_hw_init+0x18/0x60 [amdgpu] [<ffff800002b0a738>] amdgpu_device_init+0x1938/0x27e0 [amdgpu] [<ffff800002b0ce80>] amdgpu_driver_load_kms+0x20/0xa0 [amdgpu] [<ffff800002b008f0>] amdgpu_pci_probe+0x1b0/0x580 [amdgpu] [<9000000003c7eae4>] local_pci_probe+0x44/0xc0 [<90000000032f2b18>] work_for_cpu_fn+0x18/0x40 [<90000000032f5da0>] process_one_work+0x160/0x300 [<90000000032f6718>] worker_thread+0x318/0x440 [<9000000003301b8c>] kthread+0x12c/0x220 [<90000000032b1484>] ret_from_kernel_thread+0x8/0xa4 Unfortunately, protecting dml21_copy() out of DML2 causes "sleeping function called from invalid context", so protect them with DC_FP_START() and DC_FP_END() inside. Fixes: 7da55c27e7 ("drm/amd/display: Remove incorrect FP context start") Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2025-04-07 14:34:32 -04:00
..
accel	accel/amdxdna: Check interrupt register before mailbox_rx_worker exits	2025-02-27 08:41:46 -06:00
accessibility
acpi	ACPI: platform_profile: Add support for hidden choices	2025-03-04 20:45:34 +01:00
amba
android	binderfs: fix use-after-free in binder_devices	2025-02-20 15:20:11 +01:00
ata	ata fixes for 6.14-rc5	2025-03-01 08:59:29 -08:00
atm
auxdisplay	auxdisplay for v6.14-1	2025-01-24 08:03:52 -08:00
base	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
bcma
block	block-6.14-20250306	2025-03-07 11:12:33 -10:00
bluetooth	bluetooth: btusb: Initialize .owner field of force_poll_sync_fops	2025-02-27 16:50:05 -05:00
bus	Linux 6.14-rc6	2025-03-12 09:43:12 +10:00
cache
cdrom	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
cdx	cdx: Fix possible UAF error in driver_override_show()	2025-02-20 15:19:07 +01:00
char	Char/Misc/IIO driver fixes for 6.14-rc6	2025-03-09 09:07:54 -10:00
clk	The various patchsets are summarized below. Plus of course many	2025-01-26 18:36:23 -08:00
clocksource	irqchip/jcore-aic, clocksource/drivers/jcore: Fix jcore-pit interrupt request	2025-02-17 23:27:49 +01:00
comedi
connector
counter
cpufreq	amd-pstate fixes 2/6/25	2025-02-06 20:39:43 +01:00
cpuidle	More power management updates for 6.14-rc1	2025-01-30 15:10:34 -08:00
crypto	crypto: ccp: Add external API interface for PSP module initialization	2025-02-14 18:39:19 -05:00
cxl	cxl changes for v6.14	2025-01-29 11:23:22 -08:00
dax
dca
devfreq
dio
dma	dmaengine fixes for v6.14	2025-03-02 10:08:45 -08:00
dma-buf	Merge drm/drm-next into drm-misc-next	2025-02-06 13:47:32 +01:00
dpll
edac	EDAC/qcom: Correct interrupt enable register configuration	2025-02-14 20:36:11 +01:00
eisa
extcon
firewire	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
firmware	EFI fixes for v6.14 #2	2025-02-28 08:47:21 -08:00
fpga
fsi
gnss
gpio	gpio: rcar: Fix missing of_node_put() call	2025-03-06 15:51:27 +01:00
gpu	drm/amd/display: Protect FPU in dml21_copy()	2025-04-07 14:34:32 -04:00
greybus
hid	hid-for-linus-2025030501	2025-03-05 07:46:59 -10:00
hsi
hte
hv	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
hwmon	hwmon: fix a NULL vs IS_ERR_OR_NULL() check in xgene_hwmon_probe()	2025-03-03 06:04:34 -08:00
hwspinlock
hwtracing	intel_th: pci: Add Panther Lake-P/U support	2025-02-20 09:35:57 +01:00
i2c	i2c: amd-asf: Fix EOI register write to enable successive interrupts	2025-02-26 23:28:41 +01:00
i3c	I3C for 6.14	2025-01-24 15:48:01 -08:00
idle	intel_idle: Handle older CPUs, which stop the TSC in deeper C states, correctly	2025-02-28 22:04:26 +01:00
iio	iio: filter: admv8818: Force initialization of SDO	2025-02-08 12:46:32 +00:00
infiniband	RDMA/bnxt_re: Fix the page details for the srq created by kernel consumers	2025-02-23 06:57:56 -05:00
input	platform-drivers-x86 for v6.14-1	2025-01-24 07:18:39 -08:00
interconnect
iommu	iommu/vt-d: Fix suspicious RCU usage	2025-02-28 12:19:01 +01:00
ipack
irqchip	irqchip/qcom-pdc: Workaround hardware register bug on X1E80100	2025-02-21 09:47:06 +01:00
isdn
leds	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
macintosh	The various patchsets are summarized below. Plus of course many	2025-01-26 18:36:23 -08:00
mailbox
mcb
md	- dm-vdo: add missing spin_lock_init	2025-02-24 16:29:48 -08:00
media	media: cec: move driver for TDA9950 from drm/i2c	2025-02-13 00:17:42 +02:00
memory
memstick	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
message
mfd	mfd: syscon: Restore device_node_to_regmap() for non-syscon nodes	2025-02-11 14:53:39 +00:00
misc	Revert "drivers/card_reader/rtsx_usb: Restore interrupt based detection"	2025-02-27 12:24:53 -08:00
mmc	mmc: mtk-sd: Fix register settings for hs400(es) mode	2025-02-03 13:34:50 +01:00
most
mtd	Fix writes on SST flashes	2025-02-19 14:38:47 +01:00
mux
net	mctp i3c: handle NULL header address	2025-03-06 10:33:07 +01:00
nfc
ntb
nubus
nvdimm
nvme	nvme-tcp: fix signedness bug in nvme_tcp_init_connection()	2025-03-05 10:37:01 -08:00
nvmem
of	Revert "of: reserved-memory: Fix using wrong number of cells to get property 'alignment'"	2025-02-26 13:39:28 -06:00
opp	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
parisc
parport
pci	pci-v6.14-fixes-3	2025-02-14 16:49:07 -08:00
pcmcia
peci
perf	treewide: const qualify ctl_tables where applicable	2025-01-28 13:48:37 +01:00
phy	phy: tegra: xusb: reset VBUS & ID OVERRIDE	2025-02-14 18:03:05 +05:30
pinctrl	pinctrl: pinconf-generic: Print unsigned value if a format is registered	2025-02-06 10:13:15 +01:00
platform	ACPI fix for 6.14-rc6	2025-03-07 12:17:42 -10:00
pmdomain
pnp
power	power: supply: axp20x_battery: Fix fault handling for AXP717	2025-02-03 12:41:18 +01:00
powercap	Merge branch 'pm-powercap'	2025-02-07 12:43:58 +01:00
pps
ps3
ptp	ptp: vmclock: Remove goto-based cleanup logic	2025-02-11 10:20:52 +01:00
pwm	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
rapidio	rapidio: add check for rio_add_net() in rio_scan_alloc_net()	2025-03-05 21:36:19 -08:00
ras
regulator	regulator: core: let dt properties override driver init_data	2025-02-11 16:29:01 +00:00
remoteproc
reset	soc: driver updates for 6.14	2025-01-24 14:56:59 -08:00
rpmsg
rtc	RTC for 6.13	2025-01-30 17:50:02 -08:00
s390	Smaller than usual with no fixes from any subtree.	2025-02-20 10:19:54 -08:00
sbus
scsi	scsi: core: Clear driver private data when retrying request	2025-02-20 21:20:58 -05:00
sh
siox
slimbus	slimbus: messaging: Free transaction ID in delayed interrupt scenario	2025-02-20 15:19:51 +01:00
soc	soc: loongson: loongson2_guts: Add check for devm_kstrdup()	2025-02-20 22:29:05 +01:00
soundwire	soundwire updates for 6.14	2025-01-29 14:38:19 -08:00
spi	spi: sn-f-ospi: Fix division by zero	2025-02-06 11:33:51 +00:00
spmi
ssb
staging	fbtft: Remove access to page->index	2025-03-05 08:38:21 +01:00
target	Merge branch '6.14/scsi-queue' into 6.14/scsi-fixes	2025-02-03 16:28:51 -05:00
tc
tee	tee: optee: Fix supplicant wait loop	2025-02-14 15:17:34 +01:00
thermal	thermal: gov_power_allocator: Update total_weight on bind and cdev updates	2025-02-25 12:30:45 +01:00
thunderbolt	Driver core and debugfs updates	2025-01-28 12:25:12 -08:00
tty	Serial driver fixes for 6.14-rc3	2025-02-16 12:50:44 -08:00
ufs	scsi: ufs: core: bsg: Fix crash when arpmb command fails	2025-02-20 22:18:24 -05:00
uio	Char/Misc/IIO driver updates for 6.14-rc1	2025-01-27 16:51:51 -08:00
usb	usb: typec: ucsi: Fix NULL pointer access	2025-03-06 16:55:46 +01:00
vdpa	virtio: features, fixes, cleanups	2025-01-27 15:26:06 -08:00
vfio	VFIO updates for v6.14-rc1	2025-01-28 14:16:46 -08:00
vhost	vhost: return task creation error instead of NULL	2025-03-01 02:52:52 -05:00
video	gpu: nova-core: add initial driver stub	2025-03-09 19:24:27 +01:00
virt	Char/Misc/IIO driver fixes for 6.14-rc6	2025-03-09 09:07:54 -10:00
virtio	virtio: features, fixes, cleanups	2025-01-27 15:26:06 -08:00
w1
watchdog	linux-watchdog 6.14-rc1 tag	2025-01-25 16:19:10 -08:00
xen	xen: branch for v6.14-rc3	2025-02-14 08:15:17 -08:00
zorro
Kconfig
Makefile