Geert Uytterhoeven fe7daa313d sh: mach-r2d: Handle virq offset in cascaded IRL demux ... commit ab8aa4f095 upstream. When booting rts7751r2dplus_defconfig on QEMU, the system hangs due to an interrupt storm on IRQ 20. IRQ 20 aka event 0x280 is a cascaded IRL interrupt, which maps to IRQ_VOYAGER, the interrupt used by the Silicon Motion SM501 multimedia companion chip. As rts7751r2d_irq_demux() does not take into account the new virq offset, the interrupt is no longer translated, leading to an unhandled interrupt. Fix this by taking into account the virq offset when translating cascaded IRL interrupts. Fixes: a8ac296114 ("sh: Avoid using IRQ0 on SH3 and SH4") Reported-by: Guenter Roeck <linux@roeck-us.net> Closes: https://lore.kernel.org/r/fbfea3ad-d327-4ad5-ac9c-648c7ca3fe1f@roeck-us.net Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/2c99d5df41c40691f6c407b7b6a040d406bc81ac.1688901306.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-07-19 16:22:18 +02:00
..
boards	sh: mach-r2d: Handle virq offset in cascaded IRL demux	2023-07-19 16:22:18 +02:00
boot	mmc: sh_mmcif: move platform_data header to proper location	2022-04-26 14:05:21 +02:00
cchips	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
configs	- hfs and hfsplus kmap API modernization from Fabio Francesco	2022-10-12 11:00:22 -07:00
drivers	sh: dma: Fix DMA channel offset calculation	2023-07-19 16:22:07 +02:00
include	sh: Avoid using IRQ0 on SH3 and SH4	2023-07-19 16:21:54 +02:00
kernel	sh: Avoid using IRQ0 on SH3 and SH4	2023-07-19 16:21:54 +02:00
lib	sh: propage the calling conventions change down to csum_partial_copy_generic()	2020-08-20 15:45:18 -04:00
math-emu	sh: math-emu: fix macro redefined warning	2023-05-17 11:53:44 +02:00
mm	mm/fault: convert remaining simple cases to lock_mm_and_find_vma()	2023-07-01 13:16:25 +02:00
tools	sh: Remove SH5-based Cayman platform	2020-08-14 22:05:06 -04:00
Kbuild	kbuild: use more subdir- for visiting subdirectories while cleaning	2021-10-24 13:49:46 +09:00
Kconfig	mm/fault: convert remaining simple cases to lock_mm_and_find_vma()	2023-07-01 13:16:25 +02:00
Kconfig.cpu	docs: sh: convert register-banks.txt to ReST	2020-06-19 14:10:13 -06:00
Kconfig.debug	sh: mcount.S: fix build error when PRINTK is not enabled	2023-05-17 11:53:44 +02:00
Makefile	kbuild: remove head-y syntax	2022-10-02 18:06:03 +09:00