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ihklib: add pa_info functions.

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This commit is contained in:
Ken Sato
2017-04-27 17:13:49 +09:00
parent e6c4d7731d
commit 1541b26086
7 changed files with 389 additions and 1 deletions
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47
kernel/host.c
View File

@@ -31,6 +31,7 @@
#include <init.h>
#include <kmalloc.h>
#include <sysfs.h>
#include <ihk/perfctr.h>
//#define DEBUG_PRINT_HOST
@@ -488,6 +489,8 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
unsigned long pp;
int cpuid;
int ret = 0;
struct perf_ctrl_desc *pcd;
unsigned int mode = 0;
switch (packet->msg) {
case SCD_MSG_INIT_CHANNEL_ACKED:
@@ -597,6 +600,50 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
ret = 0;
break;
case SCD_MSG_PERF_CTRL:
pp = ihk_mc_map_memory(NULL, packet->arg, sizeof(struct perf_ctrl_desc));
pcd = (struct perf_ctrl_desc *)ihk_mc_map_virtual(pp, 1, PTATTR_WRITABLE | PTATTR_ACTIVE);
switch (pcd->ctrl_type) {
case PERF_CTRL_SET:
if (!pcd->exclude_kernel) {
mode |= PERFCTR_KERNEL_MODE;
}
if (!pcd->exclude_user) {
mode |= PERFCTR_USER_MODE;
}
ihk_mc_perfctr_init_raw(pcd->target_cntr, pcd->config, mode);
ihk_mc_perfctr_stop(1 << pcd->target_cntr);
ihk_mc_perfctr_reset(pcd->target_cntr);
break;
case PERF_CTRL_ENABLE:
ihk_mc_perfctr_start(pcd->target_cntr_mask);
break;
case PERF_CTRL_DISABLE:
ihk_mc_perfctr_stop(pcd->target_cntr_mask);
break;
case PERF_CTRL_GET:
pcd->read_value = ihk_mc_perfctr_read(pcd->target_cntr);
break;
default:
kprintf("%s: SCD_MSG_PERF_CTRL unexpected ctrl_type\n", __FUNCTION__);
}
ihk_mc_unmap_virtual(pcd, 1, 0);
ihk_mc_unmap_memory(NULL, pp, sizeof(struct perf_ctrl_desc));
pckt.msg = SCD_MSG_PERF_ACK;
pckt.err = 0;
pckt.arg = packet->arg;
ihk_ikc_send(c, &pckt, 0);
ret = 0;
break;
default:
kprintf("syscall_pakcet_handler:unknown message "
"(%d.%d.%d.%d.%d.%#lx)\n",

33
kernel/include/syscall.h
View File

@@ -75,6 +75,9 @@
#define SCD_MSG_PROCFS_TID_DELETE 0x45
#define SCD_MSG_EVENT_SIGNAL 0x46
#define SCD_MSG_PERF_CTRL 0x50
#define SCD_MSG_PERF_ACK 0x51
/* Cloning flags. */
# define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */
# define CLONE_VM 0x00000100 /* Set if VM shared between processes. */
@@ -445,4 +448,34 @@ struct get_cpu_mapping_req {
#endif
};
enum perf_ctrl_type {
PERF_CTRL_SET,
PERF_CTRL_GET,
PERF_CTRL_ENABLE,
PERF_CTRL_DISABLE,
};
struct perf_ctrl_desc {
enum perf_ctrl_type ctrl_type;
int status;
union {
/* for SET, GET */
struct {
unsigned int target_cntr;
unsigned long config;
unsigned long read_value;
unsigned disabled :1,
pinned :1,
exclude_user :1,
exclude_kernel :1,
exclude_hv :1,
exclude_idle :1;
};
/* for START, STOP*/
struct {
unsigned long target_cntr_mask;
};
};
};
#endif