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powerpc/pseries: Move mm/book3s64/vphn.c under platforms/pseries/

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hcall_vphn() is specific to pseries and will be used in a subsequent
patch. So, move it to a more appropriate place under
arch/powerpc/platforms/pseries. Also merge vphn.h into lppaca.h
and update vphn selftest to use the new files.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Naveen N. Rao
2019-07-03 22:33:59 +05:30
committed by Michael Ellerman
parent ef34e0efa2
commit 5a1ea4774d
10 changed files with 46 additions and 44 deletions
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24
arch/powerpc/include/asm/lppaca.h
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@@ -18,6 +18,29 @@
*/
#ifndef _ASM_POWERPC_LPPACA_H
#define _ASM_POWERPC_LPPACA_H
/*
* The below VPHN macros are outside the __KERNEL__ check since these are
* used for compiling the vphn selftest in userspace
*/
/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */
#define VPHN_REGISTER_COUNT 6
/*
* 6 64-bit registers unpacked into up to 24 be32 associativity values. To
* form the complete property we have to add the length in the first cell.
*/
#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1)
/*
* The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags:
* 1 for retrieving associativity information for a guest cpu
* 2 for retrieving associativity information for a host/hypervisor cpu
*/
#define VPHN_FLAG_VCPU 1
#define VPHN_FLAG_PCPU 2
#ifdef __KERNEL__
/*
@@ -179,6 +202,7 @@ extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index);
extern void register_dtl_buffer(int cpu);
extern void alloc_dtl_buffers(void);
extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity);
#endif /* CONFIG_PPC_BOOK3S */
#endif /* __KERNEL__ */