linux_dsm_epyc7002/drivers
Sean Paul ff5952a72c drm/msm: dpu: Allocate proper amount for dpu_crtc_state
Since dpu_crtc subclasses crtc_state, we need a custom .reset hook in
order to allocate the right amount of memory to accommodate the
additional struct members in dpu_crtc_state. So bring it [partially]
back.

Relevant KASAN splat:
[   10.333382] ==================================================================
[   10.344288] BUG: KASAN: slab-out-of-bounds in kmemdup+0x50/0x80
[   10.350390] Read of size 736 at addr ffffffc0d9f06080 by task frecon/394

[   10.358861] CPU: 6 PID: 394 Comm: frecon Tainted: G        W         4.19.4 #121
[   10.366476] Hardware name: Google Cheza (rev2) (DT)
[   10.371514] Call trace:
[   10.374087]  dump_backtrace+0x0/0x194
[   10.377878]  show_stack+0x20/0x28
[   10.381330]  dump_stack+0xa0/0xc8
[   10.384783]  print_address_description+0x78/0x2e0
[   10.389639]  kasan_report+0x290/0x2d0
[   10.393428]  check_memory_region+0x20/0x14c
[   10.397740]  __asan_loadN+0x14/0x1c
[   10.401345]  kmemdup+0x50/0x80
[   10.404524]  dpu_crtc_duplicate_state+0x58/0xa0
[   10.409228]  drm_atomic_get_crtc_state+0xac/0x178
[   10.414095]  __drm_atomic_helper_set_config+0x54/0x4a4
[   10.419393]  drm_atomic_helper_set_config+0x60/0xb4
[   10.424435]  drm_mode_setcrtc+0x720/0x760
[   10.428570]  drm_ioctl_kernel+0xd8/0x13c
[   10.432617]  drm_ioctl+0x380/0x4f4
[   10.436150]  drm_compat_ioctl+0x54/0x13c
[   10.440219]  __arm64_compat_sys_ioctl+0x1d8/0xef4
[   10.445086]  el0_svc_common+0xd8/0x138
[   10.448961]  el0_svc_compat_handler+0x58/0x68
[   10.453463]  el0_svc_compat+0x8/0x18

[   10.458712] Allocated by task 56:
[   10.462148]  kasan_kmalloc.part.4+0x48/0xf4
[   10.466465]  kasan_kmalloc+0x8c/0xa0
[   10.470165]  kmem_cache_alloc_trace+0x25c/0x27c
[   10.474848]  drm_atomic_helper_crtc_reset+0x68/0x98
[   10.479877]  drm_mode_config_reset+0xc4/0x19c
[   10.484383]  msm_drm_bind+0x814/0x8dc
[   10.488169]  try_to_bring_up_master.part.7+0x48/0xac
[   10.493282]  component_master_add_with_match+0x158/0x198
[   10.498758]  msm_pdev_probe+0x328/0x348
[   10.502736]  platform_drv_probe+0x74/0xc8
[   10.506877]  really_probe+0x1ac/0x35c
[   10.510659]  driver_probe_device+0xd4/0x118
[   10.514975]  __device_attach_driver+0xc8/0xf4
[   10.519477]  bus_for_each_drv+0xb4/0xe4
[   10.523439]  __device_attach+0xd0/0x158
[   10.527394]  device_initial_probe+0x24/0x30
[   10.531715]  bus_probe_device+0x50/0xe4
[   10.535681]  deferred_probe_work_func+0xac/0xdc
[   10.540376]  process_one_work+0x3f0/0x6d4
[   10.544521]  worker_thread+0x3f4/0x520
[   10.548399]  kthread+0x1b4/0x1c8
[   10.551740]  ret_from_fork+0x10/0x18

[   10.556986] Freed by task 0:
[   10.559967] (stack is not available)

[   10.565216] The buggy address belongs to the object at ffffffc0d9f06080
                which belongs to the cache kmalloc-1024 of size 1024
[   10.578268] The buggy address is located 0 bytes inside of
                1024-byte region [ffffffc0d9f06080, ffffffc0d9f06480)
[   10.590248] The buggy address belongs to the page:
[   10.595195] page:ffffffbf0367c000 count:1 mapcount:0 mapping:ffffffc0de40f680 index:0x0 compound_mapcount: 0
[   10.605321] flags: 0x4000000000008100(slab|head)
[   10.610100] raw: 4000000000008100 ffffffbf0369fa08 ffffffbf0367f008 ffffffc0de40f680
[   10.618077] raw: 0000000000000000 0000000000150015 00000001ffffffff 0000000000000000
[   10.626049] page dumped because: kasan: bad access detected

[   10.633341] Memory state around the buggy address:
[   10.638282]  ffffffc0d9f06180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   10.645710]  ffffffc0d9f06200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   10.653139] >ffffffc0d9f06280: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
[   10.660571]                                         ^
[   10.665774]  ffffffc0d9f06300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.673210]  ffffffc0d9f06380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.680639] ==================================================================

Fixes: a6ba45afda41 (drm/msm/dpu: Replace dpu_crtc_reset by atomic helper)
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Bruce Wang <bzwang@chromium.org>
Cc: Rob Clark <robdclark@gmail.com>
Reviewed-by: Bruce Wang <bzwang@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>

Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-12-11 13:07:11 -05:00
..
accessibility
acpi ACPI / platform: Add SMB0001 HID to forbidden_id_list 2018-11-21 13:30:13 +01:00
amba
android
ata libata: blacklist SAMSUNG MZ7TD256HAFV-000L9 SSD 2018-11-12 12:44:19 -07:00
atm
auxdisplay The Compiler Attributes series 2018-11-01 18:34:46 -07:00
base mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock 2018-10-31 08:54:17 -07:00
bcma
block for-linus-20181115 2018-11-16 09:31:59 -06:00
bluetooth
bus ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
cdrom
char
clk clk: qcom: gcc: Fix board clock node name 2018-11-09 14:13:55 -08:00
clocksource Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
connector
cpufreq cpufreq: ti-cpufreq: Only register platform_device when supported 2018-11-19 11:26:06 +01:00
cpuidle ARM: cpuidle: Convert to use cpuidle_register|unregister() 2018-11-08 18:53:00 +01:00
crypto crypto: hisilicon - Fix reference after free of memories on error path 2018-11-09 17:35:43 +08:00
dax
dca
devfreq
dio
dma
dma-buf dma-buf: add dma_fence_get_stub 2018-12-03 17:40:18 +01:00
edac * skx_edac: Address translation for NVDIMMs (Tony Luck and Qiuxu Zhuo) 2018-11-02 11:17:22 -07:00
eisa
extcon
firewire
firmware efi: Permit calling efi_mem_reserve_persistent() from atomic context 2018-11-15 10:04:47 +01:00
fmc
fpga
fsi
gnss gnss: sirf: fix synchronous write timeout 2018-11-14 20:37:41 +01:00
gpio gpio: mockup: fix indicated direction 2018-11-16 23:06:29 +01:00
gpu drm/msm: dpu: Allocate proper amount for dpu_crtc_state 2018-12-11 13:07:11 -05:00
hid Revert "HID: input: Create a utility class for counting scroll events" 2018-11-22 08:57:38 +01:00
hsi
hv Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up 2018-11-11 09:00:20 -08:00
hwmon hwmon: (ibmpowernv) Remove bogus __init annotations 2018-11-04 15:55:12 -08:00
hwspinlock
hwtracing
i2c i2c: nvidia-gpu: make pm_ops static 2018-11-09 17:56:44 +01:00
ide
idle
iio
infiniband
input
iommu iommu/vt-d: Use memunmap to free memremap 2018-11-22 17:02:21 +01:00
ipack
irqchip irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function 2018-11-01 12:38:48 +01:00
isdn Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
leds LED fixes for 4.20-rc2 2018-11-08 17:49:04 -06:00
lightnvm
macintosh memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
mailbox
mcb
md for-linus-20181102 2018-11-02 11:25:48 -07:00
media Linux 4.20-rc4 2018-11-29 10:34:03 +10:00
memory
memstick
message
mfd chrome-platform for v4.20 2018-10-31 16:47:55 -07:00
misc misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data 2018-11-11 09:13:19 -08:00
mmc mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value 2018-11-19 14:11:07 +01:00
mtd mtd: spi-nor: fix selection of uniform erase type in flexible conf 2018-11-20 14:26:59 +01:00
mux
net net: gemini: Fix copy/paste error 2018-11-23 22:35:38 -08:00
nfc
ntb ntb: idt: Alter the driver info comments 2018-11-01 10:33:12 -04:00
nubus
nvdimm
nvme nvme-fc: resolve io failures during connect 2018-11-15 11:37:55 +01:00
nvmem nvmem: core: fix regression in of_nvmem_cell_get() 2018-11-11 09:15:29 -08:00
of Devicetree fixes for 4.20-rc: 2018-11-09 16:41:58 -06:00
opp opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call 2018-11-13 09:40:29 +05:30
oprofile
parisc
parport
pci Revert "ACPI/PCI: Pay attention to device-specific _PXM node values" 2018-11-13 08:38:17 -06:00
pcmcia
perf
phy
pinctrl pinctrl: meson: fix meson8b ao pull register bits 2018-11-05 09:33:22 +01:00
platform platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
pnp
power
powercap
pps
ps3
ptp
pwm
rapidio
ras
regulator
remoteproc
reset ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
rpmsg
rtc rtc: pcf2127: fix a kmemleak caused in pcf2127_i2c_gather_write 2018-11-07 17:13:56 +01:00
s390 s390/ism: clear dmbe_mask bit before SMC IRQ handling 2018-11-14 14:21:20 -08:00
sbus
scsi SCSI fixes on 20181121 2018-11-22 08:31:46 -08:00
sfi mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sh
siox
slimbus slimbus: ngd: remove unnecessary check 2018-11-07 14:59:28 +01:00
sn
soc soc: ti: QMSS: Fix usage of irq_set_affinity_hint 2018-11-02 11:22:09 -07:00
soundwire
spi
spmi
ssb
staging Linux 4.20-rc4 2018-11-29 10:34:03 +10:00
target scsi: target/core: Avoid that a kernel oops is triggered when COMPARE AND WRITE fails 2018-11-05 22:16:00 -05:00
tc
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2018-10-31 11:28:12 -07:00
thunderbolt
tty TTY/Serial fixes for 4.20-rc2 2018-11-10 13:32:14 -06:00
uio uio: Fix an Oops on load 2018-11-11 09:21:46 -08:00
usb USB fixes for 4.20-rc4 2018-11-22 08:39:29 -08:00
uwb
vfio VFIO updates for v4.20 2018-10-31 11:01:38 -07:00
vhost virtio, vhost: fixes, tweaks 2018-11-01 14:42:49 -07:00
video drm-misc-next for v4.21, part 1: 2018-11-19 10:40:33 +10:00
virt
virtio
visorbus
vlynq
vme
w1
watchdog
xen xen: fixes for 4.20-rc2 2018-11-10 08:58:48 -06:00
zorro
Kconfig
Makefile