Álvaro Fernández Rojas 2cdbcff99f mips: bmips: BCM6358: disable RAC flush for TP1 ... [ Upstream commit ab327f8acdf8d06601fbf058859a539a9422afff ] RAC flush causes kernel panics on BCM6358 with EHCI/OHCI when booting from TP1: [ 3.881739] usb 1-1: new high-speed USB device number 2 using ehci-platform [ 3.895011] Reserved instruction in kernel code[#1]: [ 3.900113] CPU: 0 PID: 1 Comm: init Not tainted 5.10.16 #0 [ 3.905829] $ 0 : 00000000 10008700 00000000 77d94060 [ 3.911238] $ 4 : 7fd1f088 00000000 81431cac 81431ca0 [ 3.916641] $ 8 : 00000000 ffffefff 8075cd34 00000000 [ 3.922043] $12 : 806f8d40 f3e812b7 00000000 000d9aaa [ 3.927446] $16 : 7fd1f068 7fd1f080 7ff559b8 81428470 [ 3.932848] $20 : 00000000 00000000 55590000 77d70000 [ 3.938251] $24 : 00000018 00000010 [ 3.943655] $28 : 81430000 81431e60 81431f28 800157fc [ 3.949058] Hi : 00000000 [ 3.952013] Lo : 00000000 [ 3.955019] epc : 80015808 setup_sigcontext+0x54/0x24c [ 3.960464] ra : 800157fc setup_sigcontext+0x48/0x24c [ 3.965913] Status: 10008703 KERNEL EXL IE [ 3.970216] Cause : 00800028 (ExcCode 0a) [ 3.974340] PrId : 0002a010 (Broadcom BMIPS4350) [ 3.979170] Modules linked in: ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common [ 3.992907] Process init (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=77e22ec8) [ 4.000776] Stack : 81431ef4 7fd1f080 81431f28 81428470 7fd1f068 81431edc 7ff559b8 81428470 [ 4.009467] 81431f28 7fd1f080 55590000 77d70000 77d5498c 80015c70 806f0000 8063ae74 [ 4.018149] 08100002 81431f28 0000000a 08100002 81431f28 0000000a 77d6b418 00000003 [ 4.026831] ffffffff 80016414 80080734 81431ecc 81431ecc 00000001 00000000 04000000 [ 4.035512] 77d54874 00000000 00000000 00000000 00000000 00000012 00000002 00000000 [ 4.044196] ... [ 4.046706] Call Trace: [ 4.049238] [<80015808>] setup_sigcontext+0x54/0x24c [ 4.054356] [<80015c70>] setup_frame+0xdc/0x124 [ 4.059015] [<80016414>] do_notify_resume+0x1dc/0x288 [ 4.064207] [<80011b50>] work_notifysig+0x10/0x18 [ 4.069036] [ 4.070538] Code: 8fc300b4 00001025 26240008 <ac820000> ac830004 3c048063 0c0228aa 24846a00 26240010 [ 4.080686] [ 4.082517] ---[ end trace 22a8edb41f5f983b ]--- [ 4.087374] Kernel panic - not syncing: Fatal exception [ 4.092753] Rebooting in 1 seconds.. Because the bootloader (CFE) is not initializing the Read-ahead cache properly on the second thread (TP1). Since the RAC was not initialized properly, we should avoid flushing it at the risk of corrupting the instruction stream as seen in the trace above. Fixes: d59098a0e9 ("MIPS: bmips: use generic dma noncoherent ops") Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-06 12:10:42 +02:00
..
alchemy	mips: alchemy: gpio: Include the right header	2022-11-11 15:45:37 +01:00
ar7
ath25
ath79
bcm47xx	MIPS: BCM47XX: Cast memcmp() of function to (void *)	2022-09-19 16:46:01 +02:00
bcm63xx	MIPS: BCM63xx: Add check for NULL for clk in clk_enable	2022-12-31 13:32:00 +01:00
bmips	mips: bmips: BCM6358: disable RAC flush for TP1	2023-04-06 12:10:42 +02:00
boot	MIPS: DTS: CI20: fix otg power gpio	2023-03-10 09:34:30 +01:00
cavium-octeon	MIPS: OCTEON: warn only once if deprecated link status is being used	2022-12-31 13:32:00 +01:00
cobalt
configs	- hfs and hfsplus kmap API modernization from Fabio Francesco	2022-10-12 11:00:22 -07:00
crypto	crypto: Kconfig - simplify cipher entries	2022-08-26 18:50:43 +08:00
dec
fw	MIPS: CFE: Add cfe_die()	2022-07-17 14:52:47 +02:00
generic
include	MIPS: Fix a compilation issue	2023-03-17 08:50:30 +01:00
ingenic
jazz
kernel	MIPS: vpe-cmp: fix possible memory leak while module exiting	2022-12-31 13:31:56 +01:00
kvm	KVM: remove KVM_REQ_UNHALT	2022-09-26 12:37:21 -04:00
lantiq	- mainly cleanups	2022-10-03 09:31:55 -07:00
lib	MIPS: Simplify __bswapdi2() and __bswapsi2()	2022-09-30 16:50:00 +02:00
loongson2ef	MIPS: Loongson2ef: remove orphan sbx00_acpi_init() declaration	2022-09-19 16:34:31 +02:00
loongson32	MIPS: Loongson32: Fix PHY-mode being left unspecified	2022-09-19 16:31:32 +02:00
loongson64	MIPS: Loongson64: Add WARN_ON on kexec related kmalloc failed	2022-11-11 15:45:06 +01:00
math-emu	MIPS: Fix comment typo	2022-09-12 15:33:24 +02:00
mm	added support for Netgear WNR3500L v2	2022-08-06 16:47:19 -07:00
mti-malta
n64
net	bpf, mips: No need to use min() to get MAX_TAIL_CALL_CNT	2022-08-29 15:38:14 +02:00
pci	MIPS: pci: lantiq: switch to using gpiod API	2022-10-01 18:07:51 +02:00
pic32	MIPS: pic32: treat port as signed integer	2022-11-11 15:53:58 +01:00
power
ralink	of/fdt: run soc memory setup when early_init_dt_scan_memory fails	2023-01-12 12:02:51 +01:00
rb532
sgi-ip22
sgi-ip27	MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()	2022-09-19 16:33:27 +02:00
sgi-ip30	MIPS: SGI-IP30: Fix platform-device leak in bridge_platform_create()	2022-09-19 16:32:54 +02:00
sgi-ip32
sibyte	MIPS: remove orphan sb1250_time_init() declaration	2022-09-24 11:46:58 +02:00
sni
tools
txx9
vdso
Kbuild
Kbuild.platforms	MIPS: Remove VR41xx support	2022-07-14 11:52:29 +02:00
Kconfig	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
Kconfig.debug
Makefile	kbuild: remove head-y syntax	2022-10-02 18:06:03 +09:00
Makefile.postlink