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8151a6c13111b465dbabe07c19f572f7cbd16fef
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Fangzhi Zuo 8151a6c131 drm/amd/display: Skip Recompute DSC Params if no Stream on Link 
[why]
Encounter NULL pointer dereference uner mst + dsc setup.

BUG: kernel NULL pointer dereference, address: 0000000000000008
    PGD 0 P4D 0
    Oops: 0000 [#1] PREEMPT SMP NOPTI
    CPU: 4 PID: 917 Comm: sway Not tainted 6.3.9-arch1-1 #1 124dc55df4f5272ccb409f39ef4872fc2b3376a2
    Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022
    RIP: 0010:drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper]
    Code: 01 00 00 48 8b 85 60 05 00 00 48 63 80 88 00 00 00 3b 43 28 0f 8d 2e 01 00 00 48 8b 53 30 48 8d 04 80 48 8d 04 c2 48 8b 40 18 <48> 8>
    RSP: 0018:ffff960cc2df77d8 EFLAGS: 00010293
    RAX: 0000000000000000 RBX: ffff8afb87e81280 RCX: 0000000000000224
    RDX: ffff8afb9ee37c00 RSI: ffff8afb8da1a578 RDI: ffff8afb87e81280
    RBP: ffff8afb83d67000 R08: 0000000000000001 R09: ffff8afb9652f850
    R10: ffff960cc2df7908 R11: 0000000000000002 R12: 0000000000000000
    R13: ffff8afb8d7688a0 R14: ffff8afb8da1a578 R15: 0000000000000224
    FS:  00007f4dac35ce00(0000) GS:ffff8afe30b00000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 0000000000000008 CR3: 000000010ddc6000 CR4: 00000000003506e0
    Call Trace:
<TASK>
     ? __die+0x23/0x70
     ? page_fault_oops+0x171/0x4e0
     ? plist_add+0xbe/0x100
     ? exc_page_fault+0x7c/0x180
     ? asm_exc_page_fault+0x26/0x30
     ? drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026]
     ? drm_dp_atomic_find_time_slots+0x28/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026]
     compute_mst_dsc_configs_for_link+0x2ff/0xa40 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]
     ? fill_plane_buffer_attributes+0x419/0x510 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]
     compute_mst_dsc_configs_for_state+0x1e1/0x250 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]
     amdgpu_dm_atomic_check+0xecd/0x1190 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054]
     drm_atomic_check_only+0x5c5/0xa40
     drm_mode_atomic_ioctl+0x76e/0xbc0

[how]
dsc recompute should be skipped if no mode change detected on the new
request. If detected, keep checking whether the stream is already on
current state or not.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-08-06 11:11:02 -04:00
..
accel
Merge tag 'drm-habanalabs-next-2024-06-23' of https://github.com/HabanaAI/drivers.accel.habanalabs.kernel into drm-next
2024-06-28 09:41:04 +10:00
accessibility
Merge tag 'char-misc-6.10-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2024-05-24 08:43:25 -07:00
acpi
Merge branch 'acpi-scan'
2024-06-21 12:55:12 +02:00
amba
…
android
…
ata
ata: ahci: Clean up sysfs file on error
2024-06-30 22:23:39 +02:00
atm
atm/fore200e: Delete unused 'fore200e_boards'
2024-05-06 18:26:47 -07:00
auxdisplay
Merge tag 'backlight-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
2024-05-22 10:45:12 -07:00
base
Merge v6.10-rc6 into drm-next
2024-07-05 10:47:28 +02:00
bcma
…
block
loop: Disable fallocate() zero and discard if not supported
2024-06-14 06:21:25 -06:00
bluetooth
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
bus
tracing/treewide: Remove second parameter of __assign_str()
2024-05-22 20:14:47 -04:00
cache
…
cdrom
cdrom: rearrange last_media_change check to avoid unintentional overflow
2024-05-15 12:59:55 -06:00
cdx
…
char
agp: add missing MODULE_DESCRIPTION() macros
2024-06-24 16:20:58 +10:00
clk
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
2024-06-12 16:58:05 -07:00
clocksource
Merge tag 'riscv-for-linus-6.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
2024-05-22 09:56:00 -07:00
comedi
…
connector
…
counter
counter: ti-eqep: enable clock at probe
2024-06-22 13:48:11 +09:00
cpufreq
cpufreq: intel_pstate: Use HWP to initialize ITMT if CPPC is missing
2024-06-24 20:55:11 +02:00
cpuidle
Merge tag 'pmdomain-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
2024-05-16 08:50:32 -07:00
crypto
Merge tag 'v6.10-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2024-06-27 17:43:15 -07:00
cxl
cxl/region: Fix memregion leaks in devm_cxl_add_region()
2024-05-28 16:09:17 -07:00
dax
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 09:21:03 -07:00
dca
…
devfreq
PM / devfreq: exynos: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions
2024-05-09 00:30:37 +09:00
dio
…
dma
dmaengine: ioatdma: Fix missing kmem_cache_destroy()
2024-06-11 23:39:26 +05:30
dma-buf
Merge tag 'drm-misc-next-2024-06-20' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
2024-06-21 11:06:56 +10:00
dpll
dpll: fix return value check for kmemdup
2024-05-13 16:53:53 -07:00
edac
EDAC/igen6: Convert PCIBIOS_* return codes to errnos
2024-06-04 11:29:52 +02:00
eisa
…
extcon
extcon: adc-jack: Document missing struct members
2024-05-09 01:03:39 +09:00
firewire
firewire: core: record card index in bus_reset_handle tracepoints event
2024-06-15 14:59:26 +09:00
firmware
Merge tag 'drm-msm-next-2024-07-04' of https://gitlab.freedesktop.org/drm/msm into drm-next
2024-07-05 12:45:41 +02:00
fpga
Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2024-05-22 12:26:46 -07:00
fsi
…
gnss
…
gpio
gpiolib: cdev: Ignore reconfiguration without direction
2024-06-27 17:21:28 +02:00
gpu
drm/amd/display: Skip Recompute DSC Params if no Stream on Link
2024-08-06 11:11:02 -04:00
greybus
…
hid
Merge tag 'for-linus-2024060801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
2024-06-08 10:48:11 -07:00
hsi
…
hte
…
hv
Drivers: hv: Cosmetic changes for hv.c and balloon.c
2024-06-06 06:03:29 +00:00
hwmon
hwmon: (shtc1) Fix property misspelling
2024-05-30 09:05:19 -07:00
hwspinlock
…
hwtracing
Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2024-05-22 12:26:46 -07:00
i2c
i2c: testunit: discard write requests while old command is running
2024-06-28 20:44:38 +02:00
i3c
i3c: dw: Add hot-join support.
2024-05-23 00:29:19 +02:00
idle
…
iio
iio: chemical: bme680: Fix sensor data read operation
2024-06-09 12:02:34 +01:00
infiniband
RDMA/mana_ib: Ignore optional access flags for MRs
2024-06-21 10:19:36 -03:00
input
Merge tag 'input-for-v6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2024-06-24 14:36:11 -04:00
interconnect
tracing/treewide: Remove second parameter of __assign_str()
2024-05-22 20:14:47 -04:00
iommu
iommu/amd: Fix GT feature enablement again
2024-06-27 12:14:19 +02:00
ipack
…
irqchip
irqchip/loongson-liointc: Set different ISRs for different cores
2024-06-23 17:09:26 +02:00
isdn
…
leds
leds: class: Revert: "If no default trigger is given, make hw_control trigger the default trigger"
2024-06-16 09:33:28 -07:00
macintosh
Merge tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2024-05-17 09:05:46 -07:00
mailbox
mailbox: zynqmp-ipi: drop irq_to_desc() call
2024-05-31 12:39:15 -05:00
mcb
…
md
bcache: code cleanup in __bch_bucket_alloc_set()
2024-05-28 06:55:59 -06:00
media
mailmap: Add my outdated addresses to the map file
2024-06-12 09:28:04 -07:00
memory
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
2024-05-17 08:53:47 -07:00
memstick
…
message
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
2024-05-14 18:25:53 -07:00
mfd
mfd: axp20x: AXP717: Fix missing IRQ status registers range
2024-06-14 08:43:39 +01:00
misc
Merge v6.10-rc6 into drm-next
2024-07-05 10:47:28 +02:00
mmc
mmc: sdhci: Do not lock spinlock around mmc_gpio_get_ro()
2024-06-20 16:42:30 +02:00
most
…
mtd
Merge tag 'pull-bd_inode-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2024-05-21 09:51:42 -07:00
mux
…
net
net: mana: Fix possible double free in error handling path
2024-06-27 12:35:58 +02:00
nfc
nfc/nci: Add the inconsistency check between the input data length and count
2024-05-29 13:08:31 +01:00
ntb
…
nubus
…
nvdimm
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
nvme
nvmet-fc: Remove __counted_by from nvmet_fc_tgt_queue.fod[]
2024-06-26 10:13:04 -07:00
nvmem
…
of
of: property: Fix fw_devlink handling of interrupt-map
2024-05-30 19:43:47 -05:00
opp
Merge tag 'opp-updates-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm into pm-opp
2024-05-17 13:01:24 +02:00
parisc
…
parport
parport: amiga: Mark driver struct with __refdata to prevent section mismatch
2024-06-04 18:08:31 +02:00
pci
PCI/MSI: Fix UAF in msi_capability_init
2024-06-24 23:33:38 +02:00
pcmcia
…
peci
…
perf
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2024-05-23 12:09:22 -07:00
phy
phy: qcom: qmp-combo: Switch from V6 to V6 N4 register offsets
2024-06-03 19:30:47 +05:30
pinctrl
pinctrl: rockchip: fix pinmux reset in rockchip_pmx_set
2024-06-17 10:36:56 +02:00
platform
Merge v6.10-rc6 into drm-next
2024-07-05 10:47:28 +02:00
pmdomain
Merge tag 'pmdomain-v6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
2024-05-27 08:18:31 -07:00
pnp
PNP: Hide pnp_bus_type from the non-PNP code
2024-05-28 21:53:51 +02:00
power
Merge tag 'i2c-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2024-05-20 08:55:18 -07:00
powercap
…
pps
…
ps3
…
ptp
ptp: fix integer overflow in max_vclocks_store
2024-06-18 13:26:44 -07:00
pwm
pwm: stm32: Fix error message to not describe the previous error path
2024-06-22 16:13:19 +02:00
rapidio
rapidio: remove choice for enumeration
2024-05-14 23:36:19 +09:00
ras
RAS/AMD/ATL: Use system settings for MI300 DRAM to normalized address translation
2024-06-16 11:22:57 +02:00
regulator
regulator: axp20x: AXP717: fix LDO supply rails and off-by-ones
2024-06-12 21:30:43 +01:00
remoteproc
remoteproc: k3-r5: Jump to error handling labels in start/stop errors
2024-05-06 13:34:12 -06:00
reset
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
2024-05-18 12:48:37 -07:00
rpmsg
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
rtc
pcf8563: add wakeup-source support
2024-05-07 23:40:46 +02:00
s390
s390/sclp: Fix sclp_init() cleanup on failure
2024-06-24 11:07:06 +02:00
sbus
…
scsi
Merge tag 'ata-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
2024-06-30 14:32:24 -07:00
sh
…
siox
…
slimbus
Merge 6.9-rc7 into char-misc-testing
2024-05-08 19:21:51 +01:00
soc
Merge tag 'drm-msm-next-2024-07-04' of https://gitlab.freedesktop.org/drm/msm into drm-next
2024-07-05 12:45:41 +02:00
soundwire
soundwire: fix usages of device_get_named_child_node()
2024-06-03 17:35:24 +05:30
spi
spi: spi-imx: imx51: revert burst length calculation back to bits_per_word
2024-06-19 14:07:13 +01:00
spmi
spmi: pmic-arb: Add multi bus support
2024-05-08 19:46:11 +01:00
ssb
…
staging
staging: vchiq_debugfs: Fix build if CONFIG_DEBUG_FS is not set
2024-06-27 15:47:30 +02:00
target
Merge tag 'pull-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2024-05-21 13:11:44 -07:00
tc
…
tee
…
thermal
thermal: gov_step_wise: Go straight to instance->lower when mitigation is over
2024-06-25 14:37:05 +02:00
thunderbolt
thunderbolt: debugfs: Fix margin debugfs node creation condition
2024-05-31 13:13:39 +03:00
tty
Merge tag 'tty-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
2024-06-30 08:57:43 -07:00
ufs
scsi: ufs: core: Free memory allocated for model before reinit
2024-06-13 21:00:25 -04:00
uio
…
usb
Merge tag 'usb-6.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
2024-06-30 08:54:24 -07:00
vdpa
Merge tag 'stable/vduse-virtio-net' into vhost
2024-05-22 08:32:48 -04:00
vfio
vfio/pci: Insert full vma on mmap'd MMIO fault
2024-06-12 15:40:39 -06:00
vhost
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
video
drm/panic: Add support for drawing a monochrome graphical logo
2024-06-24 13:24:02 +02:00
virt
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2024-05-19 09:21:03 -07:00
virtio
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2024-05-23 12:04:36 -07:00
w1
…
watchdog
watchdog: add missing MODULE_DESCRIPTION() macros
2024-06-15 12:49:57 +02:00
xen
Merge tag 'for-linus-6.10a-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2024-05-24 10:24:49 -07:00
zorro
…
Kconfig
…
Makefile
kbuild: use $(src) instead of $(srctree)/$(src) for source directory
2024-05-10 04:34:52 +09:00