forked from Minki/linux
powerpc/pseries: add definitions for new H_SIGNAL_SYS_RESET hcall
This has not made its way to a PAPR release yet, but we have an hcall number assigned. H_SIGNAL_SYS_RESET = 0x380 Syntax: hcall(uint64 H_SIGNAL_SYS_RESET, int64 target); Generate a system reset NMI on the threads indicated by target. Values for target: -1 = target all online threads including the caller -2 = target all online threads except for the caller All other negative values: reserved Positive values: The thread to be targeted, obtained from the value of the "ibm,ppc-interrupt-server#s" property of the CPU in the OF device tree. Semantics: - Invalid target: return H_Parameter. - Otherwise: Generate a system reset NMI on target thread(s), return H_Success. This will be used by crash/debug code to get stuck CPUs into a known state. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
parent
500c7ab1a9
commit
53ce299615
@ -276,7 +276,8 @@
|
||||
#define H_GET_MPP_X 0x314
|
||||
#define H_SET_MODE 0x31C
|
||||
#define H_CLEAR_HPT 0x358
|
||||
#define MAX_HCALL_OPCODE H_CLEAR_HPT
|
||||
#define H_SIGNAL_SYS_RESET 0x380
|
||||
#define MAX_HCALL_OPCODE H_SIGNAL_SYS_RESET
|
||||
|
||||
/* H_VIOCTL functions */
|
||||
#define H_GET_VIOA_DUMP_SIZE 0x01
|
||||
@ -307,6 +308,11 @@
|
||||
#define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE 3
|
||||
#define H_SET_MODE_RESOURCE_LE 4
|
||||
|
||||
/* Values for argument to H_SIGNAL_SYS_RESET */
|
||||
#define H_SIGNAL_SYS_RESET_ALL -1
|
||||
#define H_SIGNAL_SYS_RESET_ALL_OTHERS -2
|
||||
/* >= 0 values are CPU number */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/**
|
||||
|
@ -308,4 +308,9 @@ static inline long plapr_set_watchpoint0(unsigned long dawr0, unsigned long dawr
|
||||
return plpar_set_mode(0, H_SET_MODE_RESOURCE_SET_DAWR, dawr0, dawrx0);
|
||||
}
|
||||
|
||||
static inline long plapr_signal_sys_reset(long cpu)
|
||||
{
|
||||
return plpar_hcall_norets(H_SIGNAL_SYS_RESET, cpu);
|
||||
}
|
||||
|
||||
#endif /* _ASM_POWERPC_PLPAR_WRAPPERS_H */
|
||||
|
Loading…
Reference in New Issue
Block a user