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7d501366cb2c005d21f2d47784e866cdc7061362
rocm-systems/topology.cpp
T
Longlong Yao e616b3e65e librocdxg: use shared GPU memory as vram on small APU 
Signed-off-by: Longlong Yao <Longlong.Yao@amd.com>
Signed-off-by: Flora Cui <flora.cui@amd.com>
2025-12-24 13:23:07 +08:00

1464 Zeilen
47 KiB
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/*
* Copyright © 2014 Advanced Micro Devices, Inc.
* Copyright 2016-2018 Raptor Engineering, LLC. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including
* the next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <cctype>
#include <cmath>
#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include <assert.h>
#include <dirent.h>
#include <unistd.h>
#include <sys/sysinfo.h>
#include "impl/wddm/types.h"
#include "impl/wddm/device.h"
#include "util/utils.h"
/* Number of memory banks added by thunk on top of topology
* This only includes static heaps like LDS, scratch and SVM,
* not for MMIO_REMAP heap. MMIO_REMAP memory bank is reported
* dynamically based on whether mmio aperture was mapped
* successfully on this node.
*/
#define NUM_OF_IGPU_HEAPS 3
#define NUM_OF_DGPU_HEAPS 3
typedef struct {
HsaNodeProperties node;
std::vector<HsaMemoryProperties> mem; /* node->NumBanks elements */
std::vector<HsaCacheProperties> cache;
std::vector<HsaIoLinkProperties> link;
} node_props_t;
struct _topology_props {
HsaSystemProperties *g_system = nullptr;
std::vector<node_props_t> g_props;
std::vector<wsl::thunk::WDDMDevice *> wdevices_;
uint32_t wdevice_num_ = 0;
uint32_t num_sysfs_nodes = 0;
int processor_vendor = -1;
double freq_max_ = 0.0;
};
static _topology_props* dxg_topology = new _topology_props();
/* Supported System Vendors */
enum SUPPORTED_PROCESSOR_VENDORS {
GENUINE_INTEL = 0,
AUTHENTIC_AMD,
IBM_POWER
};
/* Adding newline to make the search easier */
static const char *supported_processor_vendor_name[] = {
"GenuineIntel",
"AuthenticAMD",
"" // POWER requires a different search method
};
static HSAKMT_STATUS topology_take_snapshot(void);
static void topology_drop_snapshot(void);
/* information from /proc/cpuinfo */
struct proc_cpuinfo {
uint32_t proc_num; /* processor */
uint32_t apicid; /* apicid */
char model_name[HSA_PUBLIC_NAME_SIZE]; /* model name */
};
/* CPU cache table for all CPUs on the system. Each entry has the relative CPU
* info and caches connected to that CPU.
*/
typedef struct cpu_cacheinfo {
int32_t proc_num; /* this cpu's processor number */
uint32_t num_caches; /* number of caches reported by this cpu */
} cpu_cacheinfo_t;
/* num_subdirs - find the number of sub-directories in the specified path
* @dirpath - directory path to find sub-directories underneath
* @prefix - only count sub-directory names starting with prefix.
* Use blank string, "", to count all.
* Return - number of sub-directories
*/
static int num_subdirs(char *dirpath, const char *prefix) {
int count = 0;
DIR *dirp;
struct dirent *dir;
int prefix_len = strlen(prefix);
dirp = opendir(dirpath);
if (dirp) {
while ((dir = readdir(dirp)) != 0) {
if ((strcmp(dir->d_name, ".") == 0) || (strcmp(dir->d_name, "..") == 0))
continue;
if (prefix_len && strncmp(dir->d_name, prefix, prefix_len))
continue;
count++;
}
closedir(dirp);
}
return count;
}
/* fscanf_dec - read a file whose content is a decimal number
* @file [IN ] file to read
* @num [OUT] number in the file
*/
static HSAKMT_STATUS fscanf_dec(char *file, uint32_t *num) {
FILE *fd;
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
fd = fopen(file, "r");
if (!fd) {
pr_err("Failed to open %s\n", file);
return HSAKMT_STATUS_INVALID_PARAMETER;
}
if (fscanf(fd, "%u", num) != 1) {
pr_err("Failed to parse %s as a decimal.\n", file);
ret = HSAKMT_STATUS_ERROR;
}
fclose(fd);
return ret;
}
/* fscanf_str - read a file whose content is a string
* @file [IN ] file to read
* @str [OUT] string in the file
*/
static HSAKMT_STATUS fscanf_str(char *file, char *str) {
FILE *fd;
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
fd = fopen(file, "r");
if (!fd) {
pr_err("Failed to open %s\n", file);
return HSAKMT_STATUS_INVALID_PARAMETER;
}
if (fscanf(fd, "%s", str) != 1) {
pr_err("Failed to parse %s as a string.\n", file);
ret = HSAKMT_STATUS_ERROR;
}
fclose(fd);
return ret;
}
/* fscanf_size - read a file whose content represents size as a string
* @file [IN ] file to read
* @bytes [OUT] sizes in bytes
*/
static HSAKMT_STATUS fscanf_size(char *file, uint32_t *bytes) {
FILE *fd;
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
char unit;
int n;
fd = fopen(file, "r");
if (!fd) {
pr_err("Failed to open %s\n", file);
return HSAKMT_STATUS_INVALID_PARAMETER;
}
n = fscanf(fd, "%u%c", bytes, &unit);
if (n < 1) {
pr_err("Failed to parse %s\n", file);
ret = HSAKMT_STATUS_ERROR;
}
if (n == 2) {
switch (unit) {
case 'K':
*bytes <<= 10;
break;
case 'M':
*bytes <<= 20;
break;
case 'G':
*bytes <<= 30;
break;
default:
ret = HSAKMT_STATUS_ERROR;
break;
}
}
fclose(fd);
return ret;
}
/* cpumap_to_cpu_ci - translate shared_cpu_map string + cpuinfo->apicid into
* SiblingMap in cache
* @shared_cpu_map [IN ] shared_cpu_map string
* @cpuinfo [IN ] cpuinfo to get apicid
* @this_cache [OUT] CPU cache to fill in SiblingMap
*/
static void cpumap_to_cpu_ci(char *shared_cpu_map,
const std::vector<struct proc_cpuinfo>& cpuinfo,
HsaCacheProperties *this_cache) {
int num_hexs, bit;
uint32_t proc, apicid, mask;
char *ch_ptr;
/* shared_cpu_map is shown as ...X3,X2,X1 Each X is a hex without 0x
* and it's up to 8 characters(32 bits). For the first 32 CPUs(actually
* procs), it's presented in X1. The next 32 is in X2, and so on.
*/
num_hexs = (strlen(shared_cpu_map) + 8) / 9; /* 8 characters + "," */
ch_ptr = strtok(shared_cpu_map, ",");
while (num_hexs-- > 0) {
mask = strtol(ch_ptr, NULL, 16); /* each X */
for (bit = 0; bit < 32; bit++) {
if (!((1 << bit) & mask))
continue;
proc = num_hexs * 32 + bit;
apicid = cpuinfo[proc].apicid;
if (apicid >= HSA_CPU_SIBLINGS) {
pr_warn("SiblingMap buffer %d is too small\n", HSA_CPU_SIBLINGS);
continue;
}
this_cache->SiblingMap[apicid] = 1;
}
ch_ptr = strtok(NULL, ",");
}
}
/* get_cpu_cache_info - get specified CPU's cache information from sysfs
* @prefix [IN] sysfs path for target cpu cache,
* /sys/devices/system/node/nodeX/cpuY/cache
* @cpuinfo [IN] /proc/cpuinfo data to get apicid
* @cpu_ci: CPU specified. This parameter is an input and also an output.
* [IN] cpu_ci->num_caches: number of index dirs
* [OUT] cpu_ci->cache_info: to store cache info collected
* [OUT] cpu_ci->num_caches: reduces when shared with other cpu(s)
* Return: number of cache reported from this cpu
*/
static int get_cpu_cache_info(const char *prefix,
const std::vector<struct proc_cpuinfo>& cpuinfo,
std::vector<HsaCacheProperties>& cache,
cpu_cacheinfo_t& cpu_ci) {
int n;
char path[256], str[256];
bool is_power9 = false;
if (dxg_topology->processor_vendor == IBM_POWER) {
if (strcmp(cpuinfo[0].model_name, "POWER9") == 0) {
is_power9 = true;
}
}
HsaCacheProperties this_cache;
int num_idx = cpu_ci.num_caches;
for (int idx = 0; idx < num_idx; idx++) {
memset(&this_cache, 0, sizeof(this_cache));
/* If this cache is shared by multiple CPUs, we only need
* to list it in the first CPU.
*/
if (is_power9) {
// POWER9 has SMT4
if (cpu_ci.proc_num & 0x3) {
/* proc is not 0,4,8,etc. Skip and reduce the cache count. */
--cpu_ci.num_caches;
continue;
}
} else {
snprintf(path, 256, "%s/index%d/shared_cpu_list", prefix, idx);
/* shared_cpu_list is shown as n1,n2... or n1-n2,n3-n4...
* For both cases, this cache is listed to proc n1 only.
*/
fscanf_dec(path, (uint32_t *)&n);
if (cpu_ci.proc_num != n) {
/* proc is not n1. Skip and reduce the cache count. */
--cpu_ci.num_caches;
continue;
}
this_cache.ProcessorIdLow = cpuinfo[cpu_ci.proc_num].apicid;
}
/* CacheLevel */
snprintf(path, 256, "%s/index%d/level", prefix, idx);
fscanf_dec(path, &this_cache.CacheLevel);
/* CacheType */
snprintf(path, 256, "%s/index%d/type", prefix, idx);
memset(str, 0, sizeof(str));
fscanf_str(path, str);
if (!strcmp(str, "Data"))
this_cache.CacheType.ui32.Data = 1;
if (!strcmp(str, "Instruction"))
this_cache.CacheType.ui32.Instruction = 1;
if (!strcmp(str, "Unified")) {
this_cache.CacheType.ui32.Data = 1;
this_cache.CacheType.ui32.Instruction = 1;
}
this_cache.CacheType.ui32.CPU = 1;
/* CacheSize */
snprintf(path, 256, "%s/index%d/size", prefix, idx);
fscanf_size(path, &this_cache.CacheSize);
/* CacheLineSize */
snprintf(path, 256, "%s/index%d/coherency_line_size", prefix, idx);
fscanf_dec(path, &this_cache.CacheLineSize);
/* CacheAssociativity */
snprintf(path, 256, "%s/index%d/ways_of_associativity", prefix, idx);
fscanf_dec(path, &this_cache.CacheAssociativity);
/* CacheLinesPerTag */
snprintf(path, 256, "%s/index%d/physical_line_partition", prefix, idx);
fscanf_dec(path, &this_cache.CacheLinesPerTag);
/* CacheSiblings */
snprintf(path, 256, "%s/index%d/shared_cpu_map", prefix, idx);
fscanf_str(path, str);
cpumap_to_cpu_ci(str, cpuinfo, &this_cache);
cache.push_back(this_cache);
}
return cpu_ci.num_caches;
}
static HSAKMT_STATUS topology_map_node_id(uint32_t node_id,
wsl::thunk::WDDMDevice *&device) {
uint32_t idx = node_id;
if ((!dxg_topology->wdevices_.size()) || (!node_id) || (node_id >= dxg_topology->num_sysfs_nodes)) {
device = nullptr;
return HSAKMT_STATUS_ERROR;
}
device = dxg_topology->wdevices_[node_id - 1];
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS topology_sysfs_get_system_props(HsaSystemProperties& props) {
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
bool is_node_supported = true;
uint32_t num_supported_nodes = 0;
std::memset(&props, 0, sizeof(props));
dxg_runtime->HeapFini();
for (auto device : dxg_topology->wdevices_)
delete device;
dxg_topology->wdevices_.clear();
WDDMCreateDevices(dxg_topology->wdevices_);
int num_adapters = dxg_topology->wdevices_.size();
if (num_adapters == 0) {
pr_err("No WDDM adapters found.\n");
return HSAKMT_STATUS_ERROR;
}
dxg_topology->num_sysfs_nodes = num_adapters + 1;
dxg_runtime->HeapInit();
props.NumNodes = dxg_topology->num_sysfs_nodes;
if (dxg_runtime->default_node > num_adapters)
dxg_runtime->default_node = num_adapters;
return ret;
}
void topology_setup_is_dgpu_param(HsaNodeProperties *props) {
/* if we found a dGPU node, then treat the whole system as dGPU */
/* noted that some APUs are also treated as dGPU in runtime */
if (!props->NumCPUCores && props->NumFComputeCores)
dxg_runtime->hsakmt_is_dgpu = true;
}
static HSAKMT_STATUS topology_get_cpu_model_name(HsaNodeProperties& props,
const std::vector<proc_cpuinfo>& cpuinfo) {
for (int i = 0; i < cpuinfo.size(); i++) {
if (props.CComputeIdLo == cpuinfo[i].apicid) {
if (!props.DeviceId) /* CPU-only node */
strncpy((char *)props.AMDName, cpuinfo[i].model_name,
sizeof(props.AMDName));
/* Convert from UTF8 to UTF16 */
int j;
for (j = 0;
cpuinfo[i].model_name[j] != '\0' && j < HSA_PUBLIC_NAME_SIZE - 1; j++)
props.MarketingName[j] = cpuinfo[i].model_name[j];
props.MarketingName[j] = '\0';
return HSAKMT_STATUS_SUCCESS;
}
}
return HSAKMT_STATUS_ERROR;
}
static int topology_search_processor_vendor(const std::string& processor_name) {
for (unsigned int i = 0; i < ARRAY_LEN(supported_processor_vendor_name); i++) {
if (processor_name == supported_processor_vendor_name[i])
return i;
if (processor_name == "POWER9, altivec supported")
return IBM_POWER;
}
return -1;
}
/* topology_parse_cpuinfo - Parse /proc/cpuinfo and fill up required
* topology information
* cpuinfo [OUT]: output buffer to hold cpu information
* num_procs: number of processors the output buffer can hold
*/
static HSAKMT_STATUS topology_parse_cpuinfo(std::vector<proc_cpuinfo>& cpuinfo) {
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
uint32_t num_procs = cpuinfo.size();
std::ifstream cpuinfo_max_freq(
"/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
if (cpuinfo_max_freq) {
std::string line;
std::getline(cpuinfo_max_freq, line);
dxg_topology->freq_max_ = static_cast<uint32_t>(std::stod(line) / 1000);
}
std::ifstream cpuinfo_file("/proc/cpuinfo");
if (!cpuinfo_file) {
pr_err("Failed to open /proc/cpuinfo. Unable to get CPU information");
return HSAKMT_STATUS_ERROR;
}
std::string line;
uint32_t proc = 0;
while (std::getline(cpuinfo_file, line)) {
if (line.substr(0, 9) == "processor") {
proc = std::stoi(line.substr(line.find(':') + 2));
if (proc >= num_procs) {
pr_err("cpuinfo contains processor %d larger than %u\n", proc, num_procs);
return HSAKMT_STATUS_NO_MEMORY;
}
continue;
}
if (line.substr(0, 9) == "vendor_id" && dxg_topology->processor_vendor == -1) {
std::string vendor = line.substr(line.find(':') + 2);
dxg_topology->processor_vendor = topology_search_processor_vendor(vendor.c_str());
continue;
}
if (line.substr(0, 10) == "model name") {
std::string model_name = line.substr(line.find(':') + 2);
if (model_name.size() > HSA_PUBLIC_NAME_SIZE)
model_name.resize(HSA_PUBLIC_NAME_SIZE);
std::strncpy(cpuinfo[proc].model_name, model_name.c_str(), HSA_PUBLIC_NAME_SIZE);
continue;
}
if (line.substr(0, 6) == "apicid") {
cpuinfo[proc].apicid = std::stoi(line.substr(line.find(':') + 2));
continue;
}
if (!cpuinfo_max_freq) {
if (line.substr(0, 7) == "cpu MHz") {
double freq = std::stod(line.substr(line.find(':') + 2));
if (freq > dxg_topology->freq_max_) {
dxg_topology->freq_max_ = freq;
}
continue;
}
}
}
if (dxg_topology->processor_vendor < 0) {
pr_err("Failed to get Processor Vendor. Setting to %s", supported_processor_vendor_name[GENUINE_INTEL]);
dxg_topology->processor_vendor = GENUINE_INTEL;
}
return ret;
}
static HSAKMT_STATUS topology_sysfs_get_node_props(uint32_t node_id,
HsaNodeProperties& props,
bool& p2p_links,
uint32_t& num_p2pLinks) {
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
memset(&props, 0, sizeof(props));
p2p_links = false;
num_p2pLinks = 0;
props.MaxEngineClockMhzCCompute = dxg_topology->freq_max_;
if (node_id == 0) {
/* CPU node */
props.NumCPUCores = sysconf(_SC_NPROCESSORS_ONLN);
props.NumMemoryBanks = 1;
props.KFDGpuID = 0;
return HSAKMT_STATUS_SUCCESS;
}
/* gpu node */
wsl::thunk::WDDMDevice *device;
ret = topology_map_node_id(node_id, device);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
props.NumCPUCores = 0;
props.NumFComputeCores = device->SimdPerCu() * device->ComputeUnitCount();
props.NumMemoryBanks = 1;
props.NumCaches = 3;
props.NumIOLinks = 1;
props.CComputeIdLo = 0;
props.FComputeIdLo = 0;
props.Capability.ui32.ASICRevision = device->AsicRevision();
props.Capability.ui32.WatchPointsTotalBits =
std::log2(device->WatchPointsNum());
props.MaxWavesPerSIMD = device->WavePerCu() / device->SimdPerCu();
props.LDSSizeInKB = device->LdsSize() / 1024;
props.GDSSizeInKB = 0;
props.WaveFrontSize = device->WavefrontSize();
props.NumShaderBanks = device->NumShaderEngine();
props.NumArrays = device->ShaderArrayPerShaderEngine();
props.NumCUPerArray = device->ComputeUnitCount() / props.NumArrays;
props.NumSIMDPerCU = device->SimdPerCu();
props.MaxSlotsScratchCU = device->MaxScratchSlotsPerCu();
props.VendorId = 0x1002;
props.DeviceId = device->DeviceId();
props.LocationId = device->PciBusAddr();
props.LocalMemSize = 0;
props.MaxEngineClockMhzFCompute = device->MaxEngineClockMhz();
props.DrmRenderMinor = node_id;
{
int i;
const char *name = device->ProductName();
for (i = 0; name[i] != 0 && i < HSA_PUBLIC_NAME_SIZE - 1; i++)
props.MarketingName[i] = name[i];
props.MarketingName[i] = '\0';
}
props.uCodeEngineVersions.uCodeSDMA = device->GetSdmaFwVersion();
props.DebugProperties.Value = 0;
props.HiveID = 0;
props.NumSdmaEngines = device->NumSdmaEngine();
props.NumSdmaXgmiEngines = 0;
props.NumSdmaQueuesPerEngine = 6; // TODO
props.NumCpQueues = device->GetNumCpQueues();
props.NumGws = 0;
/*
* In Native Linux, if the asic is APU, this value will be set to 1,
* if the asic is dGPU, this value will be set to 0. clr use this info
* to set hostUnifiedMemory_, but for now wsl does not support this feature.
* Therefore, fore vaule to 0 temporarily.
*/
props.Integrated = 0;
props.Domain = device->Domain();
props.UniqueID = device->Uuid();
props.NumXcc = 1;
props.KFDGpuID = device->DeviceId(); // TODO
props.FamilyID = device->GfxFamily();
props.EngineId.ui32.uCode = device->GetMecFwVersion();
char *envvar = getenv("HSA_OVERRIDE_GFX_VERSION");
if (envvar) {
char dummy = '\0';
uint32_t major = 0, minor = 0, step = 0;
/* HSA_OVERRIDE_GFX_VERSION=major.minor.stepping */
if ((sscanf(envvar, "%u.%u.%u%c", &major, &minor, &step, &dummy) != 3) ||
(major > 63 || minor > 255 || step > 255)) {
pr_err("HSA_OVERRIDE_GFX_VERSION %s is invalid\n", envvar);
return HSAKMT_STATUS_ERROR;
}
props.OverrideEngineId.ui32.Major = major & 0x3f;
props.OverrideEngineId.ui32.Minor = minor & 0xff;
props.OverrideEngineId.ui32.Stepping = step & 0xff;
}
props.EngineId.ui32.Major = device->Major();
props.EngineId.ui32.Minor = device->Minor();
props.EngineId.ui32.Stepping = device->Stepping();
snprintf((char *)props.AMDName, sizeof(props.AMDName) - 1, "GFX%06x",
HSA_GET_GFX_VERSION_FULL(props.EngineId.ui32));
if (!dxg_runtime->is_svm_api_supported)
props.Capability.ui32.SVMAPISupported = 0;
props.Capability.ui32.DoorbellType = 2;
/* Get VGPR/SGPR size in byte per CU */
props.SGPRSizePerCU = SGPR_SIZE_PER_CU;
props.VGPRSizePerCU = get_vgpr_size_per_cu(props.EngineId);
if (props.NumFComputeCores)
assert(props.EngineId.ui32.Major &&
"HSA_OVERRIDE_GFX_VERSION may be needed");
return ret;
}
static HSAKMT_STATUS topology_sysfs_get_mem_props(uint32_t node_id,
uint32_t mem_id,
HsaMemoryProperties& props) {
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
std::memset(&props, 0, sizeof(props));
if (node_id == 0) {
/* CPU node */
props.HeapType = HSA_HEAPTYPE_SYSTEM;
struct sysinfo info;
sysinfo(&info);
props.SizeInBytes = info.totalram;
/* props.SizeInBytes is the actual physical system
* memory size. Reserve 1/16th for WSL system usage.
*/
dxg_runtime->max_single_alloc_size = info.totalram - (info.totalram >> 4);
props.Flags.MemoryProperty = 0;
/* TODO: sudo dmidecode --type memory doesn't work on wsl */
props.Width = 64;
props.MemoryClockMax = 2133;
return HSAKMT_STATUS_SUCCESS;
}
wsl::thunk::WDDMDevice *device;
ret = topology_map_node_id(node_id, device);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
props.HeapType = HSA_HEAPTYPE_FRAME_BUFFER_PRIVATE;
if (device->IsDgpu())
props.SizeInBytes = device->LocalHeapSize();
else
props.SizeInBytes = device->NonLocalHeapSize();
props.Width = device->MemoryBusWidth();
props.MemoryClockMax = device->MaxMemoryClockMhz();
return ret;
}
/* topology_get_cpu_cache_props - Read CPU cache information from sysfs
* @node [IN] CPU node number
* @cpuinfo [IN] /proc/cpuinfo data
* @tbl [OUT] the node table to fill up
* Return: HSAKMT_STATUS_SUCCESS in success or error number in failure
*/
static HSAKMT_STATUS topology_get_cpu_cache_props(int node,
const std::vector<proc_cpuinfo>& cpuinfo,
node_props_t& tbl) {
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
/* Get max path size from /sys/devices/system/node/node%d/%s/cache
* below, which will max out according to the largest filename,
* which can be present twice in the string above. 29 is for the prefix
* and the +6 is for the cache suffix
*/
#ifndef MAXNAMLEN
/* MAXNAMLEN is the BSD name for NAME_MAX. glibc aliases this as NAME_MAX, but
* not musl */
#define MAXNAMLEN NAME_MAX
#endif
constexpr uint32_t MAXPATHSIZE = 29 + MAXNAMLEN + (MAXNAMLEN + 6);
char path[MAXPATHSIZE], node_dir[MAXPATHSIZE];
int max_cpus;
int cache_cnt = 0;
DIR *dirp = NULL;
struct dirent *dir;
char *p;
/* Get info from /sys/devices/system/node/nodeX/cpuY/cache */
int node_real = node;
if (dxg_topology->processor_vendor == IBM_POWER) {
if (!strcmp(cpuinfo[0].model_name, "POWER9")) {
node_real = node * 8;
}
}
snprintf(node_dir, MAXPATHSIZE, "/sys/devices/system/node/node%d", node_real);
/* Other than cpuY folders, this dir also has cpulist and cpumap */
max_cpus = num_subdirs(node_dir, "cpu");
if (max_cpus <= 0) {
/* If CONFIG_NUMA is not enabled in the kernel,
* /sys/devices/system/node doesn't exist.
*/
if (node) { /* CPU node must be 0 or something is wrong */
pr_err("Fail to get cpu* dirs under %s.", node_dir);
ret = HSAKMT_STATUS_ERROR;
goto exit;
}
/* Fall back to use /sys/devices/system/cpu */
snprintf(node_dir, MAXPATHSIZE, "/sys/devices/system/cpu");
max_cpus = num_subdirs(node_dir, "cpu");
if (max_cpus <= 0) {
pr_err("Fail to get cpu* dirs under %s\n", node_dir);
ret = HSAKMT_STATUS_ERROR;
goto exit;
}
}
dirp = opendir(node_dir);
while ((dir = readdir(dirp)) != 0) {
if (strncmp(dir->d_name, "cpu", 3))
continue;
if (!isdigit(dir->d_name[3])) /* ignore files like cpulist */
continue;
if (strlen(node_dir) + strlen(dir->d_name) + strlen("/cache") + 2 < MAXPATHSIZE) {
std::string path_str = std::string(node_dir) + "/" + dir->d_name + "/cache";
strncpy(path, path_str.c_str(), MAXPATHSIZE);
path[MAXPATHSIZE - 1] = '\0';
} else {
pr_err("Path is too long and was truncated.\n");
goto exit;
}
cpu_cacheinfo_t cpu_ci;
cpu_ci.num_caches = num_subdirs(path, "index");
cpu_ci.proc_num= atoi(dir->d_name+3);
cache_cnt += get_cpu_cache_info(path, cpuinfo, tbl.cache, cpu_ci);
}
assert(cache_cnt == tbl.cache.size());
tbl.node.NumCaches = cache_cnt;
exit:
if (dirp)
closedir(dirp);
return ret;
}
/* For a give Node @node_id the function gets @iolink_id information i.e. parses
* sysfs the following sysfs entry
* ./nodes/@node_id/io_links/@iolink_id/properties. @node_id has to be valid
* accessible node.
*
* If node_to specified by the @iolink_id is not accessible the function returns
* HSAKMT_STATUS_NOT_SUPPORTED. If node_to is accessible, then node_to is mapped
* from sysfs_node to user_node and returns HSAKMT_STATUS_SUCCESS.
*/
static HSAKMT_STATUS topology_sysfs_get_iolink_props(uint32_t node_id,
uint32_t iolink_id,
HsaIoLinkProperties& props,
bool p2pLink) {
wsl::thunk::WDDMDevice *device;
topology_map_node_id(node_id, device);
std::memset(&props, 0, sizeof(props));
props.IoLinkType = HSA_IOLINKTYPE_PCIEXPRESS;
props.VersionMajor = props.VersionMinor = 0;
props.NodeFrom = node_id;
props.NodeTo = 0;
props.Weight = 20;
props.Flags.ui32.Override = 1;
props.Flags.ui32.NonCoherent = 1;
props.Flags.ui32.NoAtomics32bit = !(device->SupportPlatformAtomic());
props.Flags.ui32.NoAtomics64bit = !(device->SupportPlatformAtomic());
props.RecSdmaEngIdMask = 0;
return HSAKMT_STATUS_SUCCESS;
}
/* topology_get_free_io_link_slot_for_node - For the given node_id, find the
* next available free slot to add an io_link
*/
static HsaIoLinkProperties *
topology_get_free_io_link_slot_for_node(uint32_t node_id,
const HsaSystemProperties& sys_props,
std::vector<node_props_t>& node_props) {
std::vector<HsaIoLinkProperties>& props = node_props[node_id].link;
if (node_id >= sys_props.NumNodes) {
pr_err("Invalid node [%d]\n", node_id);
return NULL;
}
if (!props.size()) {
pr_err("No io_link reported for Node [%d]\n", node_id);
return NULL;
}
if (node_props[node_id].node.NumIOLinks >= sys_props.NumNodes - 1) {
pr_err("No more space for io_link for Node [%d]\n", node_id);
return NULL;
}
return &props[node_props[node_id].node.NumIOLinks];
}
/* topology_add_io_link_for_node - If a free slot is available,
* add io_link for the given Node.
* TODO: Add other members of HsaIoLinkProperties
*/
static HSAKMT_STATUS topology_add_io_link_for_node(
uint32_t node_from, const HsaSystemProperties& sys_props,
std::vector<node_props_t>& node_props, HSA_IOLINKTYPE IoLinkType, uint32_t node_to,
uint32_t Weight) {
HsaIoLinkProperties *props;
props =
topology_get_free_io_link_slot_for_node(node_from, sys_props, node_props);
if (!props)
return HSAKMT_STATUS_NO_MEMORY;
props->IoLinkType = IoLinkType;
props->NodeFrom = node_from;
props->NodeTo = node_to;
props->Weight = Weight;
node_props[node_from].node.NumIOLinks++;
return HSAKMT_STATUS_SUCCESS;
}
/* Find the CPU that this GPU (gpu_node) directly connects to */
static int32_t gpu_get_direct_link_cpu(uint32_t gpu_node,
const std::vector<node_props_t>& node_props) {
const std::vector<HsaIoLinkProperties>& props = node_props[gpu_node].link;
uint32_t i;
if (!node_props[gpu_node].node.KFDGpuID || props.empty() ||
node_props[gpu_node].node.NumIOLinks == 0)
return -1;
for (i = 0; i < node_props[gpu_node].node.NumIOLinks; i++)
if (props[i].IoLinkType == HSA_IOLINKTYPE_PCIEXPRESS &&
props[i].Weight <= 20) /* >20 is GPU->CPU->GPU */
return props[i].NodeTo;
return -1;
}
/* Get node1->node2 IO link information. This should be a direct link that has
* been created in the kernel.
*/
static HSAKMT_STATUS get_direct_iolink_info(uint32_t node1, uint32_t node2,
const std::vector<node_props_t>& node_props,
HSAuint32 *weight,
HSA_IOLINKTYPE *type) {
const std::vector<HsaIoLinkProperties>& props = node_props[node1].link;
uint32_t i;
if (!props.size())
return HSAKMT_STATUS_INVALID_NODE_UNIT;
for (i = 0; i < node_props[node1].node.NumIOLinks; i++)
if (props[i].NodeTo == node2) {
if (weight)
*weight = props[i].Weight;
if (type)
*type = props[i].IoLinkType;
return HSAKMT_STATUS_SUCCESS;
}
return HSAKMT_STATUS_INVALID_PARAMETER;
}
static HSAKMT_STATUS get_indirect_iolink_info(uint32_t node1, uint32_t node2,
const std::vector<node_props_t>& node_props,
HSAuint32 *weight,
HSA_IOLINKTYPE *type) {
int32_t dir_cpu1 = -1, dir_cpu2 = -1;
HSAKMT_STATUS ret;
uint32_t i;
*weight = 0;
*type = HSA_IOLINKTYPE_UNDEFINED;
if (node1 == node2)
return HSAKMT_STATUS_INVALID_PARAMETER;
/* CPU->CPU is not an indirect link */
if (!node_props[node1].node.KFDGpuID && !node_props[node2].node.KFDGpuID)
return HSAKMT_STATUS_INVALID_NODE_UNIT;
if (node_props[node1].node.HiveID && node_props[node2].node.HiveID &&
node_props[node1].node.HiveID == node_props[node2].node.HiveID)
return HSAKMT_STATUS_INVALID_PARAMETER;
if (node_props[node1].node.KFDGpuID)
dir_cpu1 = gpu_get_direct_link_cpu(node1, node_props);
if (node_props[node2].node.KFDGpuID)
dir_cpu2 = gpu_get_direct_link_cpu(node2, node_props);
if (dir_cpu1 < 0 && dir_cpu2 < 0)
return HSAKMT_STATUS_ERROR;
/* if the node2(dst) is GPU , it need to be large bar for host access*/
if (node_props[node2].node.KFDGpuID) {
for (i = 0; i < node_props[node2].node.NumMemoryBanks; ++i)
if (node_props[node2].mem[i].HeapType == HSA_HEAPTYPE_FRAME_BUFFER_PUBLIC)
break;
if (i >= node_props[node2].node.NumMemoryBanks)
return HSAKMT_STATUS_ERROR;
}
/* Possible topology:
* GPU --(weight1) -- CPU -- (weight2) -- GPU
* GPU --(weight1) -- CPU -- (weight2) -- CPU -- (weight3) -- GPU
* GPU --(weight1) -- CPU -- (weight2) -- CPU
* CPU -- (weight2) -- CPU -- (weight3) -- GPU
*/
HSAuint32 weight1 = 0, weight2 = 0, weight3 = 0;
if (dir_cpu1 >= 0) { /* GPU->CPU ... */
if (dir_cpu2 >= 0) {
if (dir_cpu1 == dir_cpu2) /* GPU->CPU->GPU*/ {
ret =
get_direct_iolink_info(node1, dir_cpu1, node_props, &weight1, NULL);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
ret =
get_direct_iolink_info(dir_cpu1, node2, node_props, &weight2, type);
} else /* GPU->CPU->CPU->GPU*/ {
ret =
get_direct_iolink_info(node1, dir_cpu1, node_props, &weight1, NULL);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
ret = get_direct_iolink_info(dir_cpu1, dir_cpu2, node_props, &weight2,
type);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
/* On QPI interconnection, GPUs can't access
* each other if they are attached to different
* CPU sockets. CPU<->CPU weight larger than 20
* means the two CPUs are in different sockets.
*/
if (*type == HSA_IOLINK_TYPE_QPI_1_1 && weight2 > 20)
return HSAKMT_STATUS_NOT_SUPPORTED;
ret =
get_direct_iolink_info(dir_cpu2, node2, node_props, &weight3, NULL);
}
} else /* GPU->CPU->CPU */ {
ret = get_direct_iolink_info(node1, dir_cpu1, node_props, &weight1, NULL);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
ret = get_direct_iolink_info(dir_cpu1, node2, node_props, &weight2, type);
}
} else { /* CPU->CPU->GPU */
ret = get_direct_iolink_info(node1, dir_cpu2, node_props, &weight2, type);
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
ret = get_direct_iolink_info(dir_cpu2, node2, node_props, &weight3, NULL);
}
if (ret != HSAKMT_STATUS_SUCCESS)
return ret;
*weight = weight1 + weight2 + weight3;
return HSAKMT_STATUS_SUCCESS;
}
static void
topology_create_indirect_gpu_links(const HsaSystemProperties& sys_props,
std::vector<node_props_t>& node_props) {
uint32_t i, j;
HSAuint32 weight;
HSA_IOLINKTYPE type;
for (i = 0; i < sys_props.NumNodes - 1; i++) {
for (j = i + 1; j < sys_props.NumNodes; j++) {
get_indirect_iolink_info(i, j, node_props, &weight, &type);
if (!weight)
goto try_alt_dir;
if (topology_add_io_link_for_node(i, sys_props, node_props, type, j,
weight) != HSAKMT_STATUS_SUCCESS)
pr_err("Fail to add IO link %d->%d\n", i, j);
try_alt_dir:
get_indirect_iolink_info(j, i, node_props, &weight, &type);
if (!weight)
continue;
if (topology_add_io_link_for_node(j, sys_props, node_props, type, i,
weight) != HSAKMT_STATUS_SUCCESS)
pr_err("Fail to add IO link %d->%d\n", j, i);
}
}
}
HSAKMT_STATUS topology_take_snapshot(void) {
uint32_t i, mem_id, cache_id;
HsaSystemProperties sys_props;
std::vector<node_props_t>& temp_props = dxg_topology->g_props;
HSAKMT_STATUS ret = HSAKMT_STATUS_SUCCESS;
const uint32_t num_procs = sysconf(_SC_NPROCESSORS_ONLN);
std::vector<proc_cpuinfo> cpuinfo(num_procs);
uint32_t num_ioLinks;
bool p2p_links = false;
uint32_t num_p2pLinks = 0;
topology_parse_cpuinfo(cpuinfo);
ret = topology_sysfs_get_system_props(sys_props);
if (ret != HSAKMT_STATUS_SUCCESS)
goto err;
if (sys_props.NumNodes > 0) {
temp_props.resize(sys_props.NumNodes);
for (i = 0; i < sys_props.NumNodes; i++) {
wsl::thunk::WDDMDevice *device_;
topology_map_node_id(i, device_);
ret = topology_sysfs_get_node_props(i, temp_props[i].node, p2p_links,
num_p2pLinks);
if (ret != HSAKMT_STATUS_SUCCESS) {
goto err;
}
topology_setup_is_dgpu_param(&temp_props[i].node);
if (temp_props[i].node.NumCPUCores)
topology_get_cpu_model_name(temp_props[i].node, cpuinfo);
if (temp_props[i].node.NumMemoryBanks) {
temp_props[i].mem.resize(temp_props[i].node.NumMemoryBanks);
for (mem_id = 0; mem_id < temp_props[i].node.NumMemoryBanks; mem_id++) {
ret = topology_sysfs_get_mem_props(i, mem_id,
temp_props[i].mem[mem_id]);
if (ret != HSAKMT_STATUS_SUCCESS) {
goto err;
}
}
}
if (temp_props[i].node.NumCaches) {
temp_props[i].cache.resize(temp_props[i].node.NumCaches);
for (int j = 0; j < 3; j++) {
temp_props[i].cache[j].CacheType.ui32.Data = 1;
temp_props[i].cache[j].CacheType.ui32.HSACU = 1;
temp_props[i].cache[j].CacheLevel = j + 1;
}
temp_props[i].cache[0].CacheSize = device_->GetL1CacheSize() / 1024;
temp_props[i].cache[1].CacheSize = device_->GetL2CacheSize() / 1024;
temp_props[i].cache[2].CacheSize = device_->GetL3CacheSize() / 1024;
} else if (!temp_props[i].node.KFDGpuID) { /* a CPU node */
ret = topology_get_cpu_cache_props(i, cpuinfo, temp_props[i]);
if (ret != HSAKMT_STATUS_SUCCESS) {
goto err;
}
}
/* To simplify, allocate maximum needed memory for io_links for each node.
* This removes the need for realloc when indirect and QPI links are added
* later
*/
temp_props[i].link.resize(sys_props.NumNodes - 1);
num_ioLinks = temp_props[i].node.NumIOLinks - num_p2pLinks;
uint32_t link_id = 0;
if (num_ioLinks) {
uint32_t sys_link_id = 0;
/* Parse all the sysfs specified io links. Skip the ones where the
* remote node (node_to) is not accessible
*/
while (sys_link_id < num_ioLinks && link_id < sys_props.NumNodes - 1) {
ret = topology_sysfs_get_iolink_props(
i, sys_link_id++, temp_props[i].link[link_id], false);
if (ret == HSAKMT_STATUS_NOT_SUPPORTED) {
ret = HSAKMT_STATUS_SUCCESS;
continue;
} else if (ret != HSAKMT_STATUS_SUCCESS) {
goto err;
}
link_id++;
}
/* sysfs specifies all the io links. Limit the number to valid ones */
temp_props[i].node.NumIOLinks = link_id;
}
if (num_p2pLinks) {
uint32_t sys_link_id = 0;
/* Parse all the sysfs specified p2p links.
*/
while (sys_link_id < num_p2pLinks && link_id < sys_props.NumNodes - 1) {
ret = topology_sysfs_get_iolink_props(
i, sys_link_id++, temp_props[i].link[link_id], true);
if (ret == HSAKMT_STATUS_NOT_SUPPORTED) {
ret = HSAKMT_STATUS_SUCCESS;
continue;
} else if (ret != HSAKMT_STATUS_SUCCESS) {
goto err;
}
link_id++;
}
temp_props[i].node.NumIOLinks = link_id;
}
}
}
if (!p2p_links) {
/* All direct IO links are created in the kernel. Here we need to
* connect GPU<->GPU or GPU<->CPU indirect IO links.
*/
topology_create_indirect_gpu_links(sys_props, temp_props);
}
if (!dxg_topology->g_system) {
dxg_topology->g_system = (HsaSystemProperties *)malloc(sizeof(HsaSystemProperties));
if (!dxg_topology->g_system) {
ret = HSAKMT_STATUS_NO_MEMORY;
goto err;
}
}
*dxg_topology->g_system = sys_props;
err:
return ret;
}
/* Drop the Snashot of the HSA topology information. Assume lock is held. */
void topology_drop_snapshot(void) {
if (!!dxg_topology->g_system != !!dxg_topology->g_props.size())
pr_warn("Probably inconsistency?\n");
dxg_topology->g_props.clear();
free(dxg_topology->g_system);
dxg_topology->g_system = NULL;
trim_suballocator();
for (auto device : dxg_topology->wdevices_)
delete device;
dxg_topology->wdevices_.clear();
}
HSAKMT_STATUS validate_nodeid(uint32_t nodeid, uint32_t *gpu_id) {
if (dxg_topology->g_props.empty() || !dxg_topology->g_system || dxg_topology->g_system->NumNodes <= nodeid)
return HSAKMT_STATUS_INVALID_NODE_UNIT;
if (gpu_id)
*gpu_id = dxg_topology->g_props[nodeid].node.KFDGpuID;
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS gpuid_to_nodeid(uint32_t gpu_id, uint32_t *node_id) {
uint64_t node_idx;
for (node_idx = 0; node_idx < dxg_topology->g_system->NumNodes; node_idx++) {
if (dxg_topology->g_props[node_idx].node.KFDGpuID == gpu_id) {
*node_id = node_idx;
return HSAKMT_STATUS_SUCCESS;
}
}
return HSAKMT_STATUS_INVALID_NODE_UNIT;
}
HSAKMT_STATUS HSAKMTAPI
hsaKmtAcquireSystemProperties(HsaSystemProperties *SystemProperties) {
HSAKMT_STATUS err = HSAKMT_STATUS_SUCCESS;
CHECK_DXG_OPEN();
if (!SystemProperties)
return HSAKMT_STATUS_INVALID_PARAMETER;
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
/* We already have a valid snapshot. Avoid double initialization that
* would leak memory.
*/
if (dxg_topology->g_system) {
*SystemProperties = *dxg_topology->g_system;
goto out;
}
err = topology_take_snapshot();
if (err != HSAKMT_STATUS_SUCCESS)
goto out;
assert(dxg_topology->g_system);
// err = fmm_init_process_apertures(dxg_topology->g_system->NumNodes);
if (err != HSAKMT_STATUS_SUCCESS)
goto init_process_apertures_failed;
// err = init_process_doorbells(dxg_topology->g_system->NumNodes);
if (err != HSAKMT_STATUS_SUCCESS)
goto init_doorbells_failed;
*SystemProperties = *dxg_topology->g_system;
goto out;
init_doorbells_failed:
// fmm_destroy_process_apertures();
init_process_apertures_failed:
topology_drop_snapshot();
out:
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return err;
}
HSAKMT_STATUS HSAKMTAPI hsaKmtReleaseSystemProperties(void) {
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
topology_drop_snapshot();
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS topology_get_node_props(HSAuint32 NodeId,
HsaNodeProperties *NodeProperties) {
if (!dxg_topology->g_system || dxg_topology->g_props.empty() || NodeId >= dxg_topology->g_system->NumNodes)
return HSAKMT_STATUS_ERROR;
*NodeProperties = dxg_topology->g_props[NodeId].node;
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS HSAKMTAPI
hsaKmtGetNodeProperties(HSAuint32 NodeId, HsaNodeProperties *NodeProperties) {
HSAKMT_STATUS err;
uint32_t gpu_id;
if (!NodeProperties)
return HSAKMT_STATUS_INVALID_PARAMETER;
CHECK_DXG_OPEN();
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
err = validate_nodeid(NodeId, &gpu_id);
if (err != HSAKMT_STATUS_SUCCESS)
goto out;
err = topology_get_node_props(NodeId, NodeProperties);
if (err != HSAKMT_STATUS_SUCCESS)
goto out;
/* For CPU only node don't add any additional GPU memory banks. */
if (gpu_id) {
uint64_t base, limit;
if (!(NodeProperties->Integrated))
NodeProperties->NumMemoryBanks += NUM_OF_DGPU_HEAPS;
else
NodeProperties->NumMemoryBanks += NUM_OF_IGPU_HEAPS;
// TODO: for apu
/*if (fmm_get_aperture_base_and_limit(FMM_MMIO, gpu_id, &base,
&limit) == HSAKMT_STATUS_SUCCESS)
NodeProperties->NumMemoryBanks += 1;*/
}
out:
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return err;
}
HSAKMT_STATUS HSAKMTAPI
hsaKmtGetNodeMemoryProperties(HSAuint32 NodeId, HSAuint32 NumBanks,
HsaMemoryProperties *MemoryProperties) {
HSAKMT_STATUS err = HSAKMT_STATUS_SUCCESS;
uint32_t i;
if (!MemoryProperties)
return HSAKMT_STATUS_INVALID_PARAMETER;
CHECK_DXG_OPEN();
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
memset(MemoryProperties, 0, NumBanks * sizeof(HsaMemoryProperties));
for (i = 0; i < wsl::Min(dxg_topology->g_props[NodeId].node.NumMemoryBanks, NumBanks); i++) {
assert(dxg_topology->g_props[NodeId].mem.size());
MemoryProperties[i] = dxg_topology->g_props[NodeId].mem[i];
}
/* The following memory banks does not apply to CPU only node */
wsl::thunk::WDDMDevice *device_ = get_wddmdev(NodeId);
if (device_ == nullptr)
goto out;
/*Add LDS*/
if (i < NumBanks) {
MemoryProperties[i].HeapType = HSA_HEAPTYPE_GPU_LDS;
MemoryProperties[i].VirtualBaseAddress = device_->SharedApertureBase();
MemoryProperties[i].SizeInBytes = dxg_topology->g_props[NodeId].node.LDSSizeInKB * 1024;
i++;
}
/* Add SCRATCH */
if (i < NumBanks) {
MemoryProperties[i].HeapType = HSA_HEAPTYPE_GPU_SCRATCH;
MemoryProperties[i].VirtualBaseAddress = device_->PrivateApertureBase();
MemoryProperties[i].SizeInBytes = device_->PrivateApertureSize();
i++;
}
out:
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return err;
}
HSAKMT_STATUS HSAKMTAPI hsaKmtGetNodeCacheProperties(
HSAuint32 NodeId, HSAuint32 ProcessorId, HSAuint32 NumCaches,
HsaCacheProperties *CacheProperties) {
HSAKMT_STATUS err;
uint32_t i;
if (!CacheProperties)
return HSAKMT_STATUS_INVALID_PARAMETER;
CHECK_DXG_OPEN();
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
/* KFD ADD page 18, snapshot protocol violation */
if (!dxg_topology->g_system || NodeId >= dxg_topology->g_system->NumNodes) {
err = HSAKMT_STATUS_INVALID_NODE_UNIT;
goto out;
}
if (NumCaches > dxg_topology->g_props[NodeId].node.NumCaches) {
err = HSAKMT_STATUS_INVALID_PARAMETER;
goto out;
}
for (i = 0; i < wsl::Min(dxg_topology->g_props[NodeId].node.NumCaches, NumCaches); i++) {
assert(dxg_topology->g_props[NodeId].cache.size());
CacheProperties[i] = dxg_topology->g_props[NodeId].cache[i];
}
err = HSAKMT_STATUS_SUCCESS;
out:
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return err;
}
HSAKMT_STATUS topology_get_iolink_props(HSAuint32 NodeId, HSAuint32 NumIoLinks,
HsaIoLinkProperties *IoLinkProperties) {
if (!dxg_topology->g_system || dxg_topology->g_props.empty() || NodeId >= dxg_topology->g_system->NumNodes)
return HSAKMT_STATUS_ERROR;
memcpy(IoLinkProperties, dxg_topology->g_props[NodeId].link.data(),
NumIoLinks * sizeof(*IoLinkProperties));
return HSAKMT_STATUS_SUCCESS;
}
HSAKMT_STATUS HSAKMTAPI
hsaKmtGetNodeIoLinkProperties(HSAuint32 NodeId, HSAuint32 NumIoLinks,
HsaIoLinkProperties *IoLinkProperties) {
HSAKMT_STATUS err;
if (!IoLinkProperties)
return HSAKMT_STATUS_INVALID_PARAMETER;
CHECK_DXG_OPEN();
pthread_mutex_lock(&dxg_runtime->hsakmt_mutex);
/* KFD ADD page 18, snapshot protocol violation */
if (!dxg_topology->g_system || NodeId >= dxg_topology->g_system->NumNodes) {
err = HSAKMT_STATUS_INVALID_NODE_UNIT;
goto out;
}
if (NumIoLinks > dxg_topology->g_props[NodeId].node.NumIOLinks) {
err = HSAKMT_STATUS_INVALID_PARAMETER;
goto out;
}
assert(dxg_topology->g_props[NodeId].link.size());
err = topology_get_iolink_props(NodeId, NumIoLinks, IoLinkProperties);
out:
pthread_mutex_unlock(&dxg_runtime->hsakmt_mutex);
return err;
}
uint16_t get_device_id_by_node_id(HSAuint32 node_id) {
if (dxg_topology->g_props.empty() || !dxg_topology->g_system || dxg_topology->g_system->NumNodes <= node_id)
return 0;
return dxg_topology->g_props[node_id].node.DeviceId;
}
bool prefer_ats(HSAuint32 node_id) {
return dxg_topology->g_props[node_id].node.Capability.ui32.HSAMMUPresent &&
dxg_topology->g_props[node_id].node.NumCPUCores &&
dxg_topology->g_props[node_id].node.NumFComputeCores;
}
uint16_t get_device_id_by_gpu_id(HSAuint32 gpu_id) {
unsigned int i;
if (dxg_topology->g_props.empty() || !dxg_topology->g_system)
return 0;
for (i = 0; i < dxg_topology->g_system->NumNodes; i++) {
if (dxg_topology->g_props[i].node.KFDGpuID == gpu_id)
return dxg_topology->g_props[i].node.DeviceId;
}
return 0;
}
uint32_t get_direct_link_cpu(uint32_t gpu_node) {
HSAuint64 size = 0;
int32_t cpu_id;
HSAuint32 i;
cpu_id = gpu_get_direct_link_cpu(gpu_node, dxg_topology->g_props);
if (cpu_id == -1)
return INVALID_NODEID;
assert(dxg_topology->g_props[cpu_id].mem.size());
for (i = 0; i < dxg_topology->g_props[cpu_id].node.NumMemoryBanks; i++)
size += dxg_topology->g_props[cpu_id].mem[i].SizeInBytes;
return size ? (uint32_t)cpu_id : INVALID_NODEID;
}
HSAKMT_STATUS validate_nodeid_array(uint32_t **gpu_id_array,
uint32_t NumberOfNodes,
uint32_t *NodeArray) {
HSAKMT_STATUS ret;
unsigned int i;
if (NumberOfNodes == 0 || !NodeArray || !gpu_id_array)
return HSAKMT_STATUS_INVALID_PARAMETER;
/* Translate Node IDs to gpu_ids */
*gpu_id_array = (uint32_t *)malloc(NumberOfNodes * sizeof(uint32_t));
if (!(*gpu_id_array))
return HSAKMT_STATUS_NO_MEMORY;
for (i = 0; i < NumberOfNodes; i++) {
ret = validate_nodeid(NodeArray[i], *gpu_id_array + i);
if (ret != HSAKMT_STATUS_SUCCESS) {
free(*gpu_id_array);
break;
}
}
return ret;
}
uint32_t get_num_sysfs_nodes(void) { return dxg_topology->num_sysfs_nodes; }
wsl::thunk::WDDMDevice *get_wddmdev(uint32_t node_id) {
if ((!dxg_topology->wdevices_.size()) || (!node_id) || (node_id >= dxg_topology->num_sysfs_nodes))
return nullptr;
return dxg_topology->wdevices_[node_id - 1];
}
uint32_t get_num_wddmdev() {
return dxg_topology->wdevices_.size();
}
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