Álvaro Fernández Rojas ab327f8acd mips: bmips: BCM6358: disable RAC flush for TP1 ... 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>		2023-03-18 14:36:06 +01:00
..
alchemy	mips: alchemy: gpio: Include the right header	2022-11-11 15:45:37 +01:00
ar7
ath25
ath79
bcm47xx	MIPS: BCM47XX: Add support for Linksys E2500 V3	2023-02-09 12:54:24 +01:00
bcm63xx	MIPS: BCM63xx: Add check for NULL for clk in clk_enable	2022-12-09 23:37:06 +01:00
bmips	mips: bmips: BCM6358: disable RAC flush for TP1	2023-03-18 14:36:06 +01:00
boot	mips: dts: ralink: mt7621: add phandle to system controller node for watchdog	2023-02-28 23:09:32 +01:00
cavium-octeon	MIPS: OCTEON: octeon-usb: Consolidate error messages	2023-01-27 17:09:15 +01:00
cobalt
configs	eth: fealnx: bring back this old driver	2023-03-08 23:22:04 -08:00
crypto
dec
fw
generic
include	a few more cleanups/fixes	2023-03-02 10:34:14 -08:00
ingenic
jazz
kernel	a few more cleanups/fixes	2023-03-02 10:34:14 -08:00
kvm	Kbuild updates for v6.3	2023-02-26 11:53:25 -08:00
lantiq	MIPS: vpe-mt: drop physical_memsize	2023-02-20 15:11:01 +01:00
lib
loongson2ef	MIPS: Prefer cc-option for additions to cflags	2023-01-26 12:41:29 +09:00
loongson32	MIPS: loongson32: Drop obsolete cpufreq platform device	2023-02-13 17:11:00 +01:00
loongson64	MIPS: Loongson64: Add WARN_ON on kexec related kmalloc failed	2022-11-11 15:45:06 +01:00
math-emu
mm	MIPS&LoongArch&NIOS2: adjust prototypes of p?d_init()	2022-12-11 18:12:11 -08:00
mti-malta
n64
net
pci	MIPS: pci-mt7620: Use devm_platform_get_and_ioremap_resource()	2023-02-09 13:04:57 +01:00
pic32	MIPS: pic32: treat port as signed integer	2022-11-11 15:53:58 +01:00
power
ralink	a few more cleanups/fixes	2023-03-02 10:34:14 -08:00
rb532
sgi-ip22	driver core: make struct bus_type.uevent() take a const *	2023-01-27 13:45:52 +01:00
sgi-ip27
sgi-ip30
sgi-ip32
sibyte
sni
tools
txx9
vdso	MIPS: remove CONFIG_MIPS_LD_CAN_LINK_VDSO	2023-01-27 17:14:48 +01:00
Kbuild	kbuild: remove --include-dir MAKEFLAG from top Makefile	2023-02-05 18:51:22 +09:00
Kbuild.platforms
Kconfig	MIPS: Workaround clang inline compat branch issue	2023-02-28 23:09:49 +01:00
Kconfig.debug
Makefile	MIPS: Prefer cc-option for additions to cflags	2023-01-26 12:41:29 +09:00
Makefile.postlink	kbuild: remove --include-dir MAKEFLAG from top Makefile	2023-02-05 18:51:22 +09:00