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hwloc support

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NAKAMURA Gou
2016-04-11 13:32:33 +09:00
parent 2a1823d52c
commit 1bb948f43b
10 changed files with 1012 additions and 0 deletions
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33
kernel/host.c
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@ -530,6 +530,31 @@ extern int runcount;
extern void terminate_host(int pid);
extern void debug_log(long);
static void req_get_cpu_mapping(long req_rpa)
{
size_t mapsize;
size_t size;
int npages;
long phys;
struct get_cpu_mapping_req *req;
struct cpu_mapping *buf;
size = sizeof(*req);
mapsize = size + (req_rpa & (PAGE_SIZE - 1));
npages = (mapsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
phys = ihk_mc_map_memory(NULL, req_rpa, size);
req = ihk_mc_map_virtual(phys, npages, PTATTR_WRITABLE);
req->error = arch_get_cpu_mapping(&buf, &req->buf_elems);
if (!req->error) {
req->buf_rpa = virt_to_phys(buf);
}
ihk_mc_unmap_virtual(req, npages, 0);
ihk_mc_unmap_memory(NULL, phys, size);
return;
} /* req_get_cpu_mapping() */
static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
void *__packet, void *ihk_os)
{
@ -631,6 +656,14 @@ static int syscall_packet_handler(struct ihk_ikc_channel_desc *c,
packet->sysfs_arg3);
return 0;
case SCD_MSG_GET_CPU_MAPPING:
req_get_cpu_mapping(packet->arg);
pckt.msg = SCD_MSG_REPLY_GET_CPU_MAPPING;
pckt.arg = packet->arg;
syscall_channel_send(c, &pckt);
return 0;
default:
kprintf("syscall_pakcet_handler:unknown message "
"(%d.%d.%d.%d.%d.%#lx)\n",

21
kernel/include/syscall.h
View File

@ -40,6 +40,9 @@
#define SCD_MSG_CLEANUP_PROCESS 0x9
#define SCD_MSG_GET_VDSO_INFO 0xa
#define SCD_MSG_GET_CPU_MAPPING 0xc
#define SCD_MSG_REPLY_GET_CPU_MAPPING 0xd
#define SCD_MSG_PROCFS_CREATE 0x10
#define SCD_MSG_PROCFS_DELETE 0x11
#define SCD_MSG_PROCFS_REQUEST 0x12
@ -385,4 +388,22 @@ struct vdso {
long pvti_phys;
};
struct cpu_mapping {
int cpu_number;
int hw_id;
};
struct get_cpu_mapping_req {
int busy; /* INOUT: */
int error; /* OUT: */
long buf_rpa; /* OUT: physical address of struct cpu_mapping */
int buf_elems; /* OUT: # of elements of buf */
int padding;
/* work for mcctrl */
#if 0
wait_queue_head_t wq;
#endif
};
#endif