Commit 3178a07c authored by David S. Miller's avatar David S. Miller
Browse files

sparc64: Add performance counter hypervisor calls for sun4v. 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6a5726dd

arch/sparc/include/asm/hypervisor.h

+24 −0
Original line number Diff line number Diff line
@@ -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

arch/sparc64/kernel/hvcalls.S

+32 −0
Original line number Diff line number Diff line
@@ -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)

arch/sparc64/kernel/sparc64_ksyms.c

+6 −0
Original line number Diff line number Diff line
@@ -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);