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| author | David S. Miller <davem@davemloft.net> | 2012-08-16 20:35:41 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-18 23:03:53 -0700 |
| commit | 8c79bfa51101354853f0f5d3b02435cec429da51 (patch) | |
| tree | 412a66bd5885179b65a957956ad7978b6bada7f4 /arch/sparc/include | |
| parent | 6f859c0e96f0737a543610a189d12420c569110f (diff) | |
| download | linux-8c79bfa51101354853f0f5d3b02435cec429da51.tar.bz2 | |
sparc64: Add hypervisor interfaces for SPARC-T4 perf counter access.
Unlike for previous chips, access to the perf-counter control
registers are all hyper-privileged. Therefore, access to them must go
through a hypervisor interface.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/hypervisor.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h index 015a761eaa32..ca121f0fa3ec 100644 --- a/arch/sparc/include/asm/hypervisor.h +++ b/arch/sparc/include/asm/hypervisor.h @@ -2934,6 +2934,16 @@ extern unsigned long sun4v_reboot_data_set(unsigned long ra, unsigned long len); #endif +#define HV_FAST_VT_GET_PERFREG 0x184 +#define HV_FAST_VT_SET_PERFREG 0x185 + +#ifndef __ASSEMBLY__ +extern unsigned long sun4v_vt_get_perfreg(unsigned long reg_num, + unsigned long *reg_val); +extern unsigned long sun4v_vt_set_perfreg(unsigned long reg_num, + unsigned long reg_val); +#endif + /* Function numbers for HV_CORE_TRAP. */ #define HV_CORE_SET_VER 0x00 #define HV_CORE_PUTCHAR 0x01 @@ -2964,6 +2974,7 @@ extern unsigned long sun4v_reboot_data_set(unsigned long ra, #define HV_GRP_NIU 0x0204 #define HV_GRP_VF_CPU 0x0205 #define HV_GRP_KT_CPU 0x0209 +#define HV_GRP_VT_CPU 0x020c #define HV_GRP_DIAG 0x0300 #ifndef __ASSEMBLY__ |