xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

sparc64: T5 PMU

Browse Source 
The T5 (niagara5) has different PCR related HV fast trap values and a new
HV API Group. This patch utilizes these and shares when possible with niagara4.

We use the same sparc_pmu niagara4_pmu. Should there be new effort to
obtain the MCU perf statistics then this would have to be changed.

Cc: sparclinux@vger.kernel.org
Signed-off-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
bob picco
2014-09-16 10:09:06 -04:00
committed by David S. Miller
parent 7c21d533ab
commit 05aa1651e8
5 changed files with 73 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
arch/sparc/kernel/hvcalls.S
View File

@@ -821,3 +821,19 @@ ENTRY(sun4v_vt_set_perfreg)
retl
nop
ENDPROC(sun4v_vt_set_perfreg)
ENTRY(sun4v_t5_get_perfreg)
mov %o1, %o4
mov HV_FAST_T5_GET_PERFREG, %o5
ta HV_FAST_TRAP
stx %o1, [%o4]
retl
nop
ENDPROC(sun4v_t5_get_perfreg)
ENTRY(sun4v_t5_set_perfreg)
mov HV_FAST_T5_SET_PERFREG, %o5
ta HV_FAST_TRAP
retl
nop
ENDPROC(sun4v_t5_set_perfreg)