lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sparc64: Add performance counter hypervisor calls for sun4v.

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

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_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. /* MMU statistics services.
* *
* The hypervisor maintains MMU statistics and privileged code provides * 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 retl
nop nop
ENDPROC(sun4v_mmu_demap_all) 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/timer.h>
#include <asm/cpudata.h> #include <asm/cpudata.h>
#include <asm/ftrace.h> #include <asm/ftrace.h>
#include <asm/hypervisor.h>
struct poll { struct poll {
int fd; int fd;
@@ -148,6 +149,11 @@ EXPORT_SYMBOL(flush_dcache_page);
EXPORT_SYMBOL(__flush_dcache_range); EXPORT_SYMBOL(__flush_dcache_range);
#endif #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 #ifdef CONFIG_SUN_AUXIO
EXPORT_SYMBOL(auxio_set_led); EXPORT_SYMBOL(auxio_set_led);
EXPORT_SYMBOL(auxio_set_lte); EXPORT_SYMBOL(auxio_set_lte);