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powerpc32: provide VIRT_CPU_ACCOUNTING

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This patch provides VIRT_CPU_ACCOUTING to PPC32 architecture.
PPC32 doesn't have the PACA structure, so we use the task_info
structure to store the accounting data.

In order to reuse on PPC32 the PPC64 functions, all u64 data has
been replaced by 'unsigned long' so that it is u32 on PPC32 and
u64 on PPC64

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
This commit is contained in:
Christophe Leroy
2016-05-17 08:33:46 +02:00
committed by Scott Wood
parent 1afbf61750
commit c223c90386
15 changed files with 158 additions and 67 deletions
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24
arch/powerpc/include/asm/ppc_asm.h
View File

@@ -24,27 +24,27 @@
*/
#ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
#define ACCOUNT_CPU_USER_ENTRY(ra, rb)
#define ACCOUNT_CPU_USER_EXIT(ra, rb)
#define ACCOUNT_CPU_USER_ENTRY(ptr, ra, rb)
#define ACCOUNT_CPU_USER_EXIT(ptr, ra, rb)
#define ACCOUNT_STOLEN_TIME
#else
#define ACCOUNT_CPU_USER_ENTRY(ra, rb) \
#define ACCOUNT_CPU_USER_ENTRY(ptr, ra, rb) \
MFTB(ra); /* get timebase */ \
ld rb,PACA_STARTTIME_USER(r13); \
std ra,PACA_STARTTIME(r13); \
PPC_LL rb, ACCOUNT_STARTTIME_USER(ptr); \
PPC_STL ra, ACCOUNT_STARTTIME(ptr); \
subf rb,rb,ra; /* subtract start value */ \
ld ra,PACA_USER_TIME(r13); \
PPC_LL ra, ACCOUNT_USER_TIME(ptr); \
add ra,ra,rb; /* add on to user time */ \
std ra,PACA_USER_TIME(r13); \
PPC_STL ra, ACCOUNT_USER_TIME(ptr); \
#define ACCOUNT_CPU_USER_EXIT(ra, rb) \
#define ACCOUNT_CPU_USER_EXIT(ptr, ra, rb) \
MFTB(ra); /* get timebase */ \
ld rb,PACA_STARTTIME(r13); \
std ra,PACA_STARTTIME_USER(r13); \
PPC_LL rb, ACCOUNT_STARTTIME(ptr); \
PPC_STL ra, ACCOUNT_STARTTIME_USER(ptr); \
subf rb,rb,ra; /* subtract start value */ \
ld ra,PACA_SYSTEM_TIME(r13); \
PPC_LL ra, ACCOUNT_SYSTEM_TIME(ptr); \
add ra,ra,rb; /* add on to system time */ \
std ra,PACA_SYSTEM_TIME(r13)
PPC_STL ra, ACCOUNT_SYSTEM_TIME(ptr)
#ifdef CONFIG_PPC_SPLPAR
#define ACCOUNT_STOLEN_TIME \