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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/perf/hv-common.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/perf/hv-common.c')
-rw-r--r-- | kernel/arch/powerpc/perf/hv-common.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/perf/hv-common.c b/kernel/arch/powerpc/perf/hv-common.c new file mode 100644 index 000000000..7dce8f109 --- /dev/null +++ b/kernel/arch/powerpc/perf/hv-common.c @@ -0,0 +1,39 @@ +#include <asm/io.h> +#include <asm/hvcall.h> + +#include "hv-gpci.h" +#include "hv-common.h" + +unsigned long hv_perf_caps_get(struct hv_perf_caps *caps) +{ + unsigned long r; + struct p { + struct hv_get_perf_counter_info_params params; + struct hv_gpci_system_performance_capabilities caps; + } __packed __aligned(sizeof(uint64_t)); + + struct p arg = { + .params = { + .counter_request = cpu_to_be32( + HV_GPCI_system_performance_capabilities), + .starting_index = cpu_to_be32(-1), + .counter_info_version_in = 0, + } + }; + + r = plpar_hcall_norets(H_GET_PERF_COUNTER_INFO, + virt_to_phys(&arg), sizeof(arg)); + + if (r) + return r; + + pr_devel("capability_mask: 0x%x\n", arg.caps.capability_mask); + + caps->version = arg.params.counter_info_version_out; + caps->collect_privileged = !!arg.caps.perf_collect_privileged; + caps->ga = !!(arg.caps.capability_mask & HV_GPCI_CM_GA); + caps->expanded = !!(arg.caps.capability_mask & HV_GPCI_CM_EXPANDED); + caps->lab = !!(arg.caps.capability_mask & HV_GPCI_CM_LAB); + + return r; +} |