18#include "hwloc/autogen/config.h" 
   19#include "hwloc/helper.h" 
   21#include "hwloc/linux.h" 
   51#define HWLOC_CL_DEVICE_PCI_BUS_INFO_KHR 0x410F 
   54#define HWLOC_CL_DEVICE_TOPOLOGY_AMD 0x4037 
   56    struct { cl_uint type; cl_uint data[5]; } raw;
 
   57    struct { cl_uint type; cl_char unused[17]; cl_char 
bus; cl_char device; cl_char function; } pcie;
 
 
   59#define HWLOC_CL_DEVICE_TOPOLOGY_TYPE_PCIE_AMD 1 
   62#define HWLOC_CL_DEVICE_PCI_BUS_ID_NV 0x4008 
   63#define HWLOC_CL_DEVICE_PCI_SLOT_ID_NV 0x4009 
   64#define HWLOC_CL_DEVICE_PCI_DOMAIN_ID_NV 0x400A 
   85static __hwloc_inline 
int 
   87                               unsigned *domain, 
unsigned *bus, 
unsigned *dev, 
unsigned *func)
 
   91        cl_uint nvbus, nvslot, nvdomain;
 
   94        clret = clGetDeviceInfo(device, HWLOC_CL_DEVICE_PCI_BUS_INFO_KHR, 
sizeof(khrbusinfo), &khrbusinfo, NULL);
 
   95        if (CL_SUCCESS == clret) {
 
   97                *bus = (unsigned) khrbusinfo.
pci_bus;
 
  103        clret = clGetDeviceInfo(device, HWLOC_CL_DEVICE_TOPOLOGY_AMD, 
sizeof(amdtopo), &amdtopo, NULL);
 
  104        if (CL_SUCCESS == clret
 
  105            && HWLOC_CL_DEVICE_TOPOLOGY_TYPE_PCIE_AMD == amdtopo.
raw.
type) {
 
  108                *bus = (unsigned) (
unsigned char) amdtopo.
pcie.
bus;
 
  109                *dev = (unsigned) (
unsigned char) amdtopo.
pcie.
device;
 
  110                *func = (unsigned) (
unsigned char) amdtopo.
pcie.
function;
 
  114        clret = clGetDeviceInfo(device, HWLOC_CL_DEVICE_PCI_BUS_ID_NV, 
sizeof(nvbus), &nvbus, NULL);
 
  115        if (CL_SUCCESS == clret) {
 
  116                clret = clGetDeviceInfo(device, HWLOC_CL_DEVICE_PCI_SLOT_ID_NV, 
sizeof(nvslot), &nvslot, NULL);
 
  117                if (CL_SUCCESS == clret) {
 
  118                        clret = clGetDeviceInfo(device, HWLOC_CL_DEVICE_PCI_DOMAIN_ID_NV, 
sizeof(nvdomain), &nvdomain, NULL);
 
  119                        if (CL_SUCCESS == clret) { 
 
  127                        *func = nvslot & 0x7;
 
 
  155static __hwloc_inline 
int 
  157                               cl_device_id device __hwloc_attribute_unused,
 
  160#if (defined HWLOC_LINUX_SYS) 
  162#define HWLOC_OPENCL_DEVICE_SYSFS_PATH_MAX 128 
  163        char path[HWLOC_OPENCL_DEVICE_SYSFS_PATH_MAX];
 
  164        unsigned pcidomain, pcibus, pcidev, pcifunc;
 
  176        sprintf(path, 
"/sys/bus/pci/devices/%04x:%02x:%02x.%01x/local_cpus", pcidomain, pcibus, pcidev, pcifunc);
 
 
  204                                       unsigned platform_index, 
unsigned device_index)
 
  206        unsigned x = (unsigned) -1, y = (
unsigned) -1;
 
  211                    && sscanf(osdev->
name, 
"opencl%ud%u", &x, &y) == 2
 
  212                    && platform_index == x && device_index == y)
 
 
  241                              cl_device_id device __hwloc_attribute_unused)
 
  244        unsigned pcidomain, pcibus, pcidevice, pcifunc;
 
  254                if (strncmp(osdev->
name, 
"opencl", 6))
 
 
hwloc_bitmap_t hwloc_cpuset_t
A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.
Definition hwloc.h:161
@ HWLOC_OBJ_OSDEV_COPROC
Operating system co-processor device. For instance "opencl0d0" for a OpenCL device,...
Definition hwloc.h:385
@ HWLOC_OBJ_PCI_DEVICE
PCI device (filtered out by default).
Definition hwloc.h:295
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition hwloc.h:742
int hwloc_topology_is_thissystem(hwloc_topology_t restrict topology)
Does the topology context come from this system?
hwloc_const_cpuset_t hwloc_topology_get_complete_cpuset(hwloc_topology_t topology)
Get complete CPU set.
static hwloc_obj_t hwloc_get_next_osdev(hwloc_topology_t topology, hwloc_obj_t prev)
Get the next OS device in the system.
Definition helper.h:1290
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty.
int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)
Copy the contents of bitmap src into the already allocated bitmap dst.
int hwloc_linux_read_path_as_cpumask(const char *path, hwloc_bitmap_t set)
Convert a linux kernel cpumask file path into a hwloc bitmap set.
static int hwloc_opencl_get_device_pci_busid(cl_device_id device, unsigned *domain, unsigned *bus, unsigned *dev, unsigned *func)
Return the domain, bus and device IDs of the OpenCL device device.
Definition opencl.h:86
static int hwloc_opencl_get_device_cpuset(hwloc_topology_t topology, cl_device_id device, hwloc_cpuset_t set)
Get the CPU set of processors that are physically close to OpenCL device device.
Definition opencl.h:156
static hwloc_obj_t hwloc_opencl_get_device_osdev(hwloc_topology_t topology, cl_device_id device)
Get the hwloc OS device object corresponding to OpenCL device deviceX.
Definition opencl.h:240
static hwloc_obj_t hwloc_opencl_get_device_osdev_by_index(hwloc_topology_t topology, unsigned platform_index, unsigned device_index)
Get the hwloc OS device object corresponding to the OpenCL device for the given indexes.
Definition opencl.h:203
Structure of a topology object.
Definition hwloc.h:431
char * name
Object-specific name if any. Mostly used for identifying OS devices and Misc objects where a name str...
Definition hwloc.h:443
hwloc_obj_type_t type
Type of object.
Definition hwloc.h:433
union hwloc_obj_attr_u * attr
Object type-specific Attributes, may be NULL if no attribute value was found.
Definition hwloc.h:450
struct hwloc_obj * parent
Parent, NULL if root (Machine object)
Definition hwloc.h:481
struct hwloc_obj_attr_u::hwloc_pcidev_attr_s pcidev
struct hwloc_obj_attr_u::hwloc_osdev_attr_s osdev
unsigned char dev
Device number (zz in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:677
unsigned char func
Function number (t in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:678
unsigned short domain
Domain number (xxxx in the PCI BDF notation xxxx:yy:zz.t). Only 16bits PCI domains are supported by d...
Definition hwloc.h:670
unsigned char bus
Bus number (yy in the PCI BDF notation xxxx:yy:zz.t).
Definition hwloc.h:676
hwloc_obj_osdev_type_t type
Definition hwloc.h:716
cl_uint pci_bus
Definition opencl.h:47
cl_uint pci_device
Definition opencl.h:48
cl_uint pci_domain
Definition opencl.h:46
cl_uint pci_function
Definition opencl.h:49
cl_char device
Definition opencl.h:57
cl_char bus
Definition opencl.h:57
cl_char function
Definition opencl.h:57
cl_uint type
Definition opencl.h:56
struct hwloc_cl_device_topology_amd::@0 raw
struct hwloc_cl_device_topology_amd::@1 pcie