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linux/drivers
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Linus Torvalds d11219ad53 amdgpu: disable powerpc support for the newer display engine 
The DRM_AMD_DC_DCN display engine support (Raven, Navi, and newer) has
not been building cleanly on powerpc and causes link errors due to
mixing hard- and soft-float object files:

  powerpc64-linux-ld: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/display_mode_lib.o uses hard float, drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_resource.o uses soft float
  powerpc64-linux-ld: failed to merge target specific data of file drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_resource.o
  [..]

and while patches are floating around, it's not exactly obvious what is
going on.

The problem bisects to commit 41b7a347bf ("powerpc: Book3S 64-bit
outline-only KASAN support") but that is probably more about changing
config variables than the fundamental cause.

Despite the bisection result, a more directly related commit seems to be
26f4712aed ("drm/amd/display: move FPU related code from dcn31 to
dml/dcn31 folder").  It's probably a combination of the two.

This has been going on since the merge window, without any final word.
So instead of blindly applying patches that may or may not be the right
thing, let's disable this for now.

As Michael Ellerman says:
 "IIUIC this code was never enabled on ppc before, so disabling it seems
  like a reasonable fix to get the build clean"

and once we have more actual feedback (and find any potential users) we
can always re-enable it with the patch that fixes the issues and
back-port as necessary.

Fixes: 41b7a347bf ("powerpc: Book3S 64-bit outline-only KASAN support")
Fixes: 26f4712aed ("drm/amd/display: move FPU related code from dcn31 to dml/dcn31 folder")
Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/all/20220606153910.GA1773067@roeck-us.net/
Link: https://lore.kernel.org/all/20220618232737.2036722-1-linux@roeck-us.net/
Link: https://lore.kernel.org/all/20220713050724.GA2471738@roeck-us.net/
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-14 10:05:46 -07:00
..
accessibility Revert "speakup: Generate speakupmap.h automatically" 2022-05-20 21:07:05 +02:00
acpi ACPI: CPPC: Don't require _OSC if X86_FEATURE_CPPC is supported 2022-07-05 20:36:11 +02:00
amba Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
android fix for breakage in #work.fd this window 2022-06-05 17:14:03 -07:00
ata ata: pata_cs5535: Fix W=1 warnings 2022-06-30 08:21:43 +09:00
atm
auxdisplay
base Just when you thought that all the speculation bugs were addressed and 2022-07-11 18:15:25 -07:00
bcma
block xen/blkfront: force data bouncing when backend is untrusted 2022-07-01 10:00:50 +02:00
bluetooth Bluetooth: btmtksdio: fix the reset takes too long 2022-05-13 13:19:01 +02:00
bus ARM: SoC fixes for 5.19 2022-06-26 14:12:56 -07:00
cdrom cdrom: remove obsolete TODO list 2022-05-15 18:31:28 -06:00
char random: update comment from copy_to_user() -> copy_to_iter() 2022-06-20 11:06:17 +02:00
clk clk: stm32: rcc_reset: Fix missing spin_lock_init() 2022-06-09 15:34:08 -07:00
clocksource clocksource: hyper-v: unexport __init-annotated hv_init_clocksource() 2022-06-08 12:27:08 +00:00
comedi comedi: vmk80xx: fix expression for tx buffer size 2022-06-10 15:21:23 +02:00
connector
counter
cpufreq cpufreq arm fixes for 5.19-rc5 2022-06-28 17:56:57 +02:00
cpuidle Merge branches 'pm-em' and 'pm-cpuidle' 2022-05-23 19:18:51 +02:00
crypto crypto: s390 - do not depend on CRYPTO_HW for SIMD implementations 2022-07-06 20:04:06 -07:00
cxl cxl/mbox: Fix missing variable payload checks in cmd size validation 2022-06-28 22:03:18 -07:00
dax dax: add .recovery_write dax_operation 2022-05-16 13:37:59 -07:00
dca
devfreq PM / devfreq: exynos-bus: Fix NULL pointer dereference 2022-07-08 04:32:26 +09:00
dio drivers: dio: add missing iounmap() in dio_init() 2022-05-19 18:56:51 +02:00
dma dmaengine: lgm: Fix an error handling path in intel_ldma_probe() 2022-07-06 10:53:25 +05:30
dma-buf Three mode setting fixes for fsl-ldb, a fbdev removal use-after-free fix, 2022-07-12 10:44:40 +10:00
edac - A gargen variety of fixes which don't fit any other tip bucket: 2022-05-23 19:32:59 -07:00
eisa
extcon extcon: Modify extcon device to be created after driver data is set 2022-05-13 17:03:41 +09:00
firewire firewire: convert sysfs sprintf/snprintf family to sysfs_emit 2022-06-17 10:43:20 +02:00
firmware ARM: SoC fixes for v5.19, part 2 2022-07-04 10:41:59 -07:00
fpga fpga: dfl: Allow Port to be linked to FME's DFL 2022-05-10 16:05:38 +08:00
fsi
gnss
gpio gpiolib: cdev: fix null pointer dereference in linereq_free() 2022-07-07 12:18:18 +02:00
gpu amdgpu: disable powerpc support for the newer display engine 2022-07-14 10:05:46 -07:00
greybus
hid HID: hyperv: Correctly access fields declared as __le16 2022-06-08 12:28:13 +00:00
hsi
hte hte: Uninitialized variable in hte_ts_get() 2022-05-20 15:54:41 +02:00
hv Drivers: hv: vmbus: Release cpu lock in error case 2022-06-10 08:41:28 +00:00
hwmon hwmon: (ibmaem) don't call platform_device_del() if platform_device_add() fails 2022-07-01 11:53:29 -07:00
hwspinlock
hwtracing coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier 2022-05-09 16:03:24 +01:00
i2c i2c: cadence: Unregister the clk notifier in error path 2022-07-07 23:06:34 +02:00
i3c i3c: master: svc: fix returnvar.cocci warning 2022-05-17 22:34:42 +02:00
idle intel_idle: Disable IBRS during long idle 2022-06-27 10:33:59 +02:00
iio 1st set of IIO fixes for the 5.19 cycle. 2022-06-20 09:49:52 +02:00
infiniband RDMA/cm: Fix memory leak in ib_cm_insert_listen 2022-06-24 16:41:03 -03:00
input Input updates for v5.19-rc1 2022-06-07 15:00:29 -07:00
interconnect Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
iommu iommu/vt-d: Fix RID2PASID setup/teardown failure 2022-07-06 12:59:21 +02:00
ipack
irqchip IRQ urgent fixes by way of Marc Zygnier: 2022-07-10 08:52:12 -07:00
isdn
leds ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
macintosh macintosh: via-pmu and via-cuda need RTC_LIB 2022-05-22 15:58:30 +10:00
mailbox mailbox: qcom-ipcc: Fix -Wunused-function with CONFIG_PM_SLEEP=n 2022-05-24 08:08:24 -05:00
mcb
md dm raid: fix KASAN warning in raid5_add_disks 2022-06-29 19:48:04 -04:00
media USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
memory memory: samsung: exynos5422-dmc: Fix refcount leak in of_get_dram_timings 2022-06-06 11:18:20 +02:00
memstick
message
mfd ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
misc misc: rtsx_usb: set return value in rsp_buf alloc err path 2022-07-02 16:20:56 +02:00
mmc mmc: mediatek: wait dma stop bit reset to 0 2022-06-15 10:05:56 -07:00
most
mtd mtd: rawnand: gpmi: Fix setting busy timeout setting 2022-06-16 16:46:08 +02:00
mux
net Networking fixes for 5.19-rc6, including fixes from bpf, netfilter, 2022-07-07 10:08:20 -07:00
nfc NFC: nxp-nci: don't print header length mismatch on i2c error 2022-06-29 14:05:00 +01:00
ntb
nubus
nvdimm nvdimm: Fix badblocks clear off-by-one error 2022-06-24 11:57:19 -07:00
nvme nvme: use struct group for generic command dwords 2022-07-06 19:12:56 +02:00
nvmem nvmem: sfp: Add support for TA 2.1 devices 2022-05-09 15:46:29 +02:00
of drm for 5.19-rc1 2022-05-25 16:18:27 -07:00
opp OPP updates for 5.19-rc1 2022-05-25 15:02:26 +02:00
parisc
parport
pci Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
pcmcia ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
peci
perf arm64 updates for 5.19: 2022-05-23 21:06:11 -07:00
phy phy-for-5.19 2022-05-19 16:56:17 +02:00
pinctrl pinctrl: stm32: fix optional IRQ support to gpios 2022-06-28 16:12:40 +02:00
platform platform-drivers-x86 for v5.19-3 2022-06-29 09:32:06 -07:00
pnp
power Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
powercap Merge branches 'pm-em' and 'pm-cpuidle' 2022-05-23 19:18:51 +02:00
pps
ps3
ptp ptp: ptp_clockmatrix: fix is_single_shot 2022-05-25 21:51:32 -07:00
pwm pwm: pwm-cros-ec: Add channel type support 2022-05-20 16:40:01 +02:00
rapidio
ras
regulator regulator: qcom_smd: correct MP5496 ranges 2022-06-07 20:38:09 +01:00
remoteproc remoteproc: imx_rproc: Support i.MX93 2022-05-09 09:29:25 -06:00
reset TI Driver updates for v5.19 2022-05-09 23:09:10 +02:00
rpmsg Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
rtc ARM: multiplatform changes, part 2 2022-06-02 15:23:54 -07:00
s390 s390 updates for 5.19-rc5 2022-07-01 11:19:14 -07:00
sbus
scsi scsi: hisi_sas: Limit max hw sectors for v3 HW 2022-06-27 22:43:57 -04:00
sh
siox
slimbus Driver core changes for 5.19-rc1 2022-06-03 11:48:47 -07:00
soc soc: qcom: smem: use correct format characters 2022-07-04 14:26:51 +02:00
soundwire
spi spi: rockchip: Unmask IRQ at the final to avoid preemption 2022-06-20 11:35:43 +01:00
spmi
ssb ssb: remove unreachable code 2022-05-11 08:29:11 +03:00
staging staging/wlan-ng: get the correct struct hfa384x in work callback 2022-07-01 09:58:58 +02:00
target blk-mq: remove the done argument to blk_execute_rq_nowait 2022-05-28 06:15:27 -06:00
tc
tee Fix a compiler warning in OP-TEE driver 2022-05-30 14:44:27 +02:00
thermal Thermal control update for 5.19-rc5 2022-07-01 13:00:47 -07:00
thunderbolt USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
tty Merge branch 'rework/kthreads' into for-linus 2022-06-23 19:11:28 +02:00
ufs scsi: ufs: Fix a race between the interrupt handler and the reset handler 2022-06-16 21:32:09 -04:00
uio
usb usb: chipidea: udc: check request status before setting device address 2022-06-24 13:45:23 +02:00
vdpa vduse: Tie vduse mgmtdev and its device 2022-06-24 02:49:48 -04:00
vfio vfio: Move IOMMU_CAP_CACHE_COHERENCY test to after we know we have a group 2022-07-05 16:06:50 -06:00
vhost vhost-vdpa: call vhost_vdpa_cleanup during the release 2022-06-27 08:05:35 -04:00
video fbcon: Use fbcon_info_from_console() in fbcon_modechange_possible() 2022-07-07 10:52:35 +02:00
virt Char / Misc / Other smaller driver subsystem updates for 5.19-rc1 2022-06-03 11:36:34 -07:00
virtio virtio_ring: make vring_create_virtqueue_split prettier 2022-06-27 08:05:35 -04:00
vlynq
vme
w1
watchdog watchdog: gxp: Add missing MODULE_LICENSE 2022-06-09 12:20:34 +02:00
xen xen/gntdev: Avoid blocking in unmap_grant_pages() 2022-06-23 15:29:18 +02:00
zorro
Kconfig SCSI misc on 20220604 2022-06-05 09:25:12 -07:00
Makefile SCSI misc on 20220604 2022-06-05 09:25:12 -07:00