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sparc64: Add performance counter hypervisor calls for sun4v. 

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-11-28 02:26:55 -08:00
parent 6a5726dd6f
commit 3178a07c33
3 changed files with 62 additions and 0 deletions
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24
arch/sparc/include/asm/hypervisor.h
View File

@ -2713,6 +2713,30 @@ extern unsigned long sun4v_ldc_revoke(unsigned long channel,
*/
#define HV_FAST_SET_PERFREG 0x101
#define HV_N2_PERF_SPARC_CTL 0x0
#define HV_N2_PERF_DRAM_CTL0 0x1
#define HV_N2_PERF_DRAM_CNT0 0x2
#define HV_N2_PERF_DRAM_CTL1 0x3
#define HV_N2_PERF_DRAM_CNT1 0x4
#define HV_N2_PERF_DRAM_CTL2 0x5
#define HV_N2_PERF_DRAM_CNT2 0x6
#define HV_N2_PERF_DRAM_CTL3 0x7
#define HV_N2_PERF_DRAM_CNT3 0x8
#define HV_FAST_N2_GET_PERFREG 0x104
#define HV_FAST_N2_SET_PERFREG 0x105
#ifndef __ASSEMBLY__
extern unsigned long sun4v_niagara_getperf(unsigned long reg,
unsigned long *val);
extern unsigned long sun4v_niagara_setperf(unsigned long reg,
unsigned long val);
extern unsigned long sun4v_niagara2_getperf(unsigned long reg,
unsigned long *val);
extern unsigned long sun4v_niagara2_setperf(unsigned long reg,
unsigned long val);
#endif
/* MMU statistics services.
*
* The hypervisor maintains MMU statistics and privileged code provides

32
arch/sparc64/kernel/hvcalls.S
View File

@ -766,3 +766,35 @@ ENTRY(sun4v_mmu_demap_all)
retl
nop
ENDPROC(sun4v_mmu_demap_all)
ENTRY(sun4v_niagara_getperf)
mov %o0, %o4
mov HV_FAST_GET_PERFREG, %o5
ta HV_FAST_TRAP
stx %o1, [%o4]
retl
nop
ENDPROC(sun4v_niagara_getperf)
ENTRY(sun4v_niagara_setperf)
mov HV_FAST_SET_PERFREG, %o5
ta HV_FAST_TRAP
retl
nop
ENDPROC(sun4v_niagara_setperf)
ENTRY(sun4v_niagara2_getperf)
mov %o0, %o4
mov HV_FAST_N2_GET_PERFREG, %o5
ta HV_FAST_TRAP
stx %o1, [%o4]
retl
nop
ENDPROC(sun4v_niagara2_getperf)
ENTRY(sun4v_niagara2_setperf)
mov HV_FAST_N2_SET_PERFREG, %o5
ta HV_FAST_TRAP
retl
nop
ENDPROC(sun4v_niagara2_setperf)

6
arch/sparc64/kernel/sparc64_ksyms.c
View File

@ -49,6 +49,7 @@
#include <asm/timer.h>
#include <asm/cpudata.h>
#include <asm/ftrace.h>
#include <asm/hypervisor.h>
struct poll {
int fd;
@ -148,6 +149,11 @@ EXPORT_SYMBOL(flush_dcache_page);
EXPORT_SYMBOL(__flush_dcache_range);
#endif
EXPORT_SYMBOL(sun4v_niagara_getperf);
EXPORT_SYMBOL(sun4v_niagara_setperf);
EXPORT_SYMBOL(sun4v_niagara2_getperf);
EXPORT_SYMBOL(sun4v_niagara2_setperf);
#ifdef CONFIG_SUN_AUXIO
EXPORT_SYMBOL(auxio_set_led);
EXPORT_SYMBOL(auxio_set_lte);