/* * Atmel SFR (Special Function Registers) register offsets and bit definitions. * * Copyright (C) 2016 Atmel * * Author: Ludovic Desroches * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_SFR_H #define _LINUX_MFD_SYSCON_ATMEL_SFR_H #define AT91_SFR_DDRCFG 0x04 /* DDR Configuration Register */ /* 0x08 ~ 0x0c: Reserved */ #define AT91_SFR_OHCIICR 0x10 /* OHCI INT Configuration Register */ #define AT91_SFR_OHCIISR 0x14 /* OHCI INT Status Register */ #define AT91_SFR_I2SCLKSEL 0x90 /* I2SC Register */ /* Field definitions */ #define AT91_OHCIICR_SUSPEND_A BIT(8) #define AT91_OHCIICR_SUSPEND_B BIT(9) #define AT91_OHCIICR_SUSPEND_C BIT(10) #define AT91_OHCIICR_USB_SUSPEND (AT91_OHCIICR_SUSPEND_A | \ AT91_OHCIICR_SUSPEND_B | \ AT91_OHCIICR_SUSPEND_C) #endif /* _LINUX_MFD_SYSCON_ATMEL_SFR_H */ anup'>emaclite-cleanup net-next plumbingsTobias Klauser
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
commit54791b276b4000b307339f269d3bf7db877d536f (patch)
tree1c2616bd373ce5ea28aac2a53e32f5b5834901ce
parent5d0e7705774dd412a465896d08d59a81a345c1e4 (diff)
parent047487241ff59374fded8c477f21453681f5995c (diff)
Merge branch 'sparc64-non-resumable-user-error-recovery'
Liam R. Howlett says: ==================== sparc64: Recover from userspace non-resumable PIO & MEM errors A non-resumable error from userspace is able to cause a kernel panic or trap loop due to the setup and handling of the queued traps once in the kernel. This patch series addresses both of these issues. The queues are fixed by simply zeroing the memory before use. PIO errors from userspace will result in a SIGBUS being sent to the user process. The MEM errors form userspace will result in a SIGKILL and also cause the offending pages to be claimed so they are no longer used in future tasks. SIGKILL is used to ensure that the process does not try to coredump and result in an attempt to read the memory again from within kernel space. Although there is a HV call to scrub the memory (mem_scrub), there is no easy way to guarantee that the real memory address(es) are not used by other tasks. Clearing the error with mem_scrub would zero the memory and cause the other processes to proceed with bad data. The handling of other non-resumable errors remain unchanged and will cause a panic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat