/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
C | 1549 lines | 1171 code | 232 blank | 146 comment | 163 complexity | f38d4c42f3547c99ee0177e0bf25a003 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
- /*
- * Copyright 2014 Advanced Micro Devices, Inc.
- *
- * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 <linux/types.h>
- #include <linux/kernel.h>
- #include <linux/pci.h>
- #include <linux/errno.h>
- #include <linux/acpi.h>
- #include <linux/hash.h>
- #include <linux/cpufreq.h>
- #include <linux/log2.h>
- #include <linux/dmi.h>
- #include <linux/atomic.h>
- #include "kfd_priv.h"
- #include "kfd_crat.h"
- #include "kfd_topology.h"
- #include "kfd_device_queue_manager.h"
- #include "kfd_iommu.h"
- #include "amdgpu_amdkfd.h"
- #include "amdgpu_ras.h"
- /* topology_device_list - Master list of all topology devices */
- static struct list_head topology_device_list;
- static struct kfd_system_properties sys_props;
- static DECLARE_RWSEM(topology_lock);
- static atomic_t topology_crat_proximity_domain;
- struct kfd_topology_device *kfd_topology_device_by_proximity_domain(
- uint32_t proximity_domain)
- {
- struct kfd_topology_device *top_dev;
- struct kfd_topology_device *device = NULL;
- down_read(&topology_lock);
- list_for_each_entry(top_dev, &topology_device_list, list)
- if (top_dev->proximity_domain == proximity_domain) {
- device = top_dev;
- break;
- }
- up_read(&topology_lock);
- return device;
- }
- struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id)
- {
- struct kfd_topology_device *top_dev = NULL;
- struct kfd_topology_device *ret = NULL;
- down_read(&topology_lock);
- list_for_each_entry(top_dev, &topology_device_list, list)
- if (top_dev->gpu_id == gpu_id) {
- ret = top_dev;
- break;
- }
- up_read(&topology_lock);
- return ret;
- }
- struct kfd_dev *kfd_device_by_id(uint32_t gpu_id)
- {
- struct kfd_topology_device *top_dev;
- top_dev = kfd_topology_device_by_id(gpu_id);
- if (!top_dev)
- return NULL;
- return top_dev->gpu;
- }
- struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev)
- {
- struct kfd_topology_device *top_dev;
- struct kfd_dev *device = NULL;
- down_read(&topology_lock);
- list_for_each_entry(top_dev, &topology_device_list, list)
- if (top_dev->gpu && top_dev->gpu->pdev == pdev) {
- device = top_dev->gpu;
- break;
- }
- up_read(&topology_lock);
- return device;
- }
- struct kfd_dev *kfd_device_by_kgd(const struct kgd_dev *kgd)
- {
- struct kfd_topology_device *top_dev;
- struct kfd_dev *device = NULL;
- down_read(&topology_lock);
- list_for_each_entry(top_dev, &topology_device_list, list)
- if (top_dev->gpu && top_dev->gpu->kgd == kgd) {
- device = top_dev->gpu;
- break;
- }
- up_read(&topology_lock);
- return device;
- }
- /* Called with write topology_lock acquired */
- static void kfd_release_topology_device(struct kfd_topology_device *dev)
- {
- struct kfd_mem_properties *mem;
- struct kfd_cache_properties *cache;
- struct kfd_iolink_properties *iolink;
- struct kfd_perf_properties *perf;
- list_del(&dev->list);
- while (dev->mem_props.next != &dev->mem_props) {
- mem = container_of(dev->mem_props.next,
- struct kfd_mem_properties, list);
- list_del(&mem->list);
- kfree(mem);
- }
- while (dev->cache_props.next != &dev->cache_props) {
- cache = container_of(dev->cache_props.next,
- struct kfd_cache_properties, list);
- list_del(&cache->list);
- kfree(cache);
- }
- while (dev->io_link_props.next != &dev->io_link_props) {
- iolink = container_of(dev->io_link_props.next,
- struct kfd_iolink_properties, list);
- list_del(&iolink->list);
- kfree(iolink);
- }
- while (dev->perf_props.next != &dev->perf_props) {
- perf = container_of(dev->perf_props.next,
- struct kfd_perf_properties, list);
- list_del(&perf->list);
- kfree(perf);
- }
- kfree(dev);
- }
- void kfd_release_topology_device_list(struct list_head *device_list)
- {
- struct kfd_topology_device *dev;
- while (!list_empty(device_list)) {
- dev = list_first_entry(device_list,
- struct kfd_topology_device, list);
- kfd_release_topology_device(dev);
- }
- }
- static void kfd_release_live_view(void)
- {
- kfd_release_topology_device_list(&topology_device_list);
- memset(&sys_props, 0, sizeof(sys_props));
- }
- struct kfd_topology_device *kfd_create_topology_device(
- struct list_head *device_list)
- {
- struct kfd_topology_device *dev;
- dev = kfd_alloc_struct(dev);
- if (!dev) {
- pr_err("No memory to allocate a topology device");
- return NULL;
- }
- INIT_LIST_HEAD(&dev->mem_props);
- INIT_LIST_HEAD(&dev->cache_props);
- INIT_LIST_HEAD(&dev->io_link_props);
- INIT_LIST_HEAD(&dev->perf_props);
- list_add_tail(&dev->list, device_list);
- return dev;
- }
- #define sysfs_show_gen_prop(buffer, fmt, ...) \
- snprintf(buffer, PAGE_SIZE, "%s"fmt, buffer, __VA_ARGS__)
- #define sysfs_show_32bit_prop(buffer, name, value) \
- sysfs_show_gen_prop(buffer, "%s %u\n", name, value)
- #define sysfs_show_64bit_prop(buffer, name, value) \
- sysfs_show_gen_prop(buffer, "%s %llu\n", name, value)
- #define sysfs_show_32bit_val(buffer, value) \
- sysfs_show_gen_prop(buffer, "%u\n", value)
- #define sysfs_show_str_val(buffer, value) \
- sysfs_show_gen_prop(buffer, "%s\n", value)
- static ssize_t sysprops_show(struct kobject *kobj, struct attribute *attr,
- char *buffer)
- {
- ssize_t ret;
- /* Making sure that the buffer is an empty string */
- buffer[0] = 0;
- if (attr == &sys_props.attr_genid) {
- ret = sysfs_show_32bit_val(buffer, sys_props.generation_count);
- } else if (attr == &sys_props.attr_props) {
- sysfs_show_64bit_prop(buffer, "platform_oem",
- sys_props.platform_oem);
- sysfs_show_64bit_prop(buffer, "platform_id",
- sys_props.platform_id);
- ret = sysfs_show_64bit_prop(buffer, "platform_rev",
- sys_props.platform_rev);
- } else {
- ret = -EINVAL;
- }
- return ret;
- }
- static void kfd_topology_kobj_release(struct kobject *kobj)
- {
- kfree(kobj);
- }
- static const struct sysfs_ops sysprops_ops = {
- .show = sysprops_show,
- };
- static struct kobj_type sysprops_type = {
- .release = kfd_topology_kobj_release,
- .sysfs_ops = &sysprops_ops,
- };
- static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr,
- char *buffer)
- {
- ssize_t ret;
- struct kfd_iolink_properties *iolink;
- /* Making sure that the buffer is an empty string */
- buffer[0] = 0;
- iolink = container_of(attr, struct kfd_iolink_properties, attr);
- if (iolink->gpu && kfd_devcgroup_check_permission(iolink->gpu))
- return -EPERM;
- sysfs_show_32bit_prop(buffer, "type", iolink->iolink_type);
- sysfs_show_32bit_prop(buffer, "version_major", iolink->ver_maj);
- sysfs_show_32bit_prop(buffer, "version_minor", iolink->ver_min);
- sysfs_show_32bit_prop(buffer, "node_from", iolink->node_from);
- sysfs_show_32bit_prop(buffer, "node_to", iolink->node_to);
- sysfs_show_32bit_prop(buffer, "weight", iolink->weight);
- sysfs_show_32bit_prop(buffer, "min_latency", iolink->min_latency);
- sysfs_show_32bit_prop(buffer, "max_latency", iolink->max_latency);
- sysfs_show_32bit_prop(buffer, "min_bandwidth", iolink->min_bandwidth);
- sysfs_show_32bit_prop(buffer, "max_bandwidth", iolink->max_bandwidth);
- sysfs_show_32bit_prop(buffer, "recommended_transfer_size",
- iolink->rec_transfer_size);
- ret = sysfs_show_32bit_prop(buffer, "flags", iolink->flags);
- return ret;
- }
- static const struct sysfs_ops iolink_ops = {
- .show = iolink_show,
- };
- static struct kobj_type iolink_type = {
- .release = kfd_topology_kobj_release,
- .sysfs_ops = &iolink_ops,
- };
- static ssize_t mem_show(struct kobject *kobj, struct attribute *attr,
- char *buffer)
- {
- ssize_t ret;
- struct kfd_mem_properties *mem;
- /* Making sure that the buffer is an empty string */
- buffer[0] = 0;
- mem = container_of(attr, struct kfd_mem_properties, attr);
- if (mem->gpu && kfd_devcgroup_check_permission(mem->gpu))
- return -EPERM;
- sysfs_show_32bit_prop(buffer, "heap_type", mem->heap_type);
- sysfs_show_64bit_prop(buffer, "size_in_bytes", mem->size_in_bytes);
- sysfs_show_32bit_prop(buffer, "flags", mem->flags);
- sysfs_show_32bit_prop(buffer, "width", mem->width);
- ret = sysfs_show_32bit_prop(buffer, "mem_clk_max", mem->mem_clk_max);
- return ret;
- }
- static const struct sysfs_ops mem_ops = {
- .show = mem_show,
- };
- static struct kobj_type mem_type = {
- .release = kfd_topology_kobj_release,
- .sysfs_ops = &mem_ops,
- };
- static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr,
- char *buffer)
- {
- ssize_t ret;
- uint32_t i, j;
- struct kfd_cache_properties *cache;
- /* Making sure that the buffer is an empty string */
- buffer[0] = 0;
- cache = container_of(attr, struct kfd_cache_properties, attr);
- if (cache->gpu && kfd_devcgroup_check_permission(cache->gpu))
- return -EPERM;
- sysfs_show_32bit_prop(buffer, "processor_id_low",
- cache->processor_id_low);
- sysfs_show_32bit_prop(buffer, "level", cache->cache_level);
- sysfs_show_32bit_prop(buffer, "size", cache->cache_size);
- sysfs_show_32bit_prop(buffer, "cache_line_size", cache->cacheline_size);
- sysfs_show_32bit_prop(buffer, "cache_lines_per_tag",
- cache->cachelines_per_tag);
- sysfs_show_32bit_prop(buffer, "association", cache->cache_assoc);
- sysfs_show_32bit_prop(buffer, "latency", cache->cache_latency);
- sysfs_show_32bit_prop(buffer, "type", cache->cache_type);
- snprintf(buffer, PAGE_SIZE, "%ssibling_map ", buffer);
- for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++)
- for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) {
- /* Check each bit */
- if (cache->sibling_map[i] & (1 << j))
- ret = snprintf(buffer, PAGE_SIZE,
- "%s%d%s", buffer, 1, ",");
- else
- ret = snprintf(buffer, PAGE_SIZE,
- "%s%d%s", buffer, 0, ",");
- }
- /* Replace the last "," with end of line */
- *(buffer + strlen(buffer) - 1) = 0xA;
- return ret;
- }
- static const struct sysfs_ops cache_ops = {
- .show = kfd_cache_show,
- };
- static struct kobj_type cache_type = {
- .release = kfd_topology_kobj_release,
- .sysfs_ops = &cache_ops,
- };
- /****** Sysfs of Performance Counters ******/
- struct kfd_perf_attr {
- struct kobj_attribute attr;
- uint32_t data;
- };
- static ssize_t perf_show(struct kobject *kobj, struct kobj_attribute *attrs,
- char *buf)
- {
- struct kfd_perf_attr *attr;
- buf[0] = 0;
- attr = container_of(attrs, struct kfd_perf_attr, attr);
- if (!attr->data) /* invalid data for PMC */
- return 0;
- else
- return sysfs_show_32bit_val(buf, attr->data);
- }
- #define KFD_PERF_DESC(_name, _data) \
- { \
- .attr = __ATTR(_name, 0444, perf_show, NULL), \
- .data = _data, \
- }
- static struct kfd_perf_attr perf_attr_iommu[] = {
- KFD_PERF_DESC(max_concurrent, 0),
- KFD_PERF_DESC(num_counters, 0),
- KFD_PERF_DESC(counter_ids, 0),
- };
- /****************************************/
- static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
- char *buffer)
- {
- struct kfd_topology_device *dev;
- uint32_t log_max_watch_addr;
- /* Making sure that the buffer is an empty string */
- buffer[0] = 0;
- if (strcmp(attr->name, "gpu_id") == 0) {
- dev = container_of(attr, struct kfd_topology_device,
- attr_gpuid);
- if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
- return -EPERM;
- return sysfs_show_32bit_val(buffer, dev->gpu_id);
- }
- if (strcmp(attr->name, "name") == 0) {
- dev = container_of(attr, struct kfd_topology_device,
- attr_name);
- if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
- return -EPERM;
- return sysfs_show_str_val(buffer, dev->node_props.name);
- }
- dev = container_of(attr, struct kfd_topology_device,
- attr_props);
- if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
- return -EPERM;
- sysfs_show_32bit_prop(buffer, "cpu_cores_count",
- dev->node_props.cpu_cores_count);
- sysfs_show_32bit_prop(buffer, "simd_count",
- dev->node_props.simd_count);
- sysfs_show_32bit_prop(buffer, "mem_banks_count",
- dev->node_props.mem_banks_count);
- sysfs_show_32bit_prop(buffer, "caches_count",
- dev->node_props.caches_count);
- sysfs_show_32bit_prop(buffer, "io_links_count",
- dev->node_props.io_links_count);
- sysfs_show_32bit_prop(buffer, "cpu_core_id_base",
- dev->node_props.cpu_core_id_base);
- sysfs_show_32bit_prop(buffer, "simd_id_base",
- dev->node_props.simd_id_base);
- sysfs_show_32bit_prop(buffer, "max_waves_per_simd",
- dev->node_props.max_waves_per_simd);
- sysfs_show_32bit_prop(buffer, "lds_size_in_kb",
- dev->node_props.lds_size_in_kb);
- sysfs_show_32bit_prop(buffer, "gds_size_in_kb",
- dev->node_props.gds_size_in_kb);
- sysfs_show_32bit_prop(buffer, "num_gws",
- dev->node_props.num_gws);
- sysfs_show_32bit_prop(buffer, "wave_front_size",
- dev->node_props.wave_front_size);
- sysfs_show_32bit_prop(buffer, "array_count",
- dev->node_props.array_count);
- sysfs_show_32bit_prop(buffer, "simd_arrays_per_engine",
- dev->node_props.simd_arrays_per_engine);
- sysfs_show_32bit_prop(buffer, "cu_per_simd_array",
- dev->node_props.cu_per_simd_array);
- sysfs_show_32bit_prop(buffer, "simd_per_cu",
- dev->node_props.simd_per_cu);
- sysfs_show_32bit_prop(buffer, "max_slots_scratch_cu",
- dev->node_props.max_slots_scratch_cu);
- sysfs_show_32bit_prop(buffer, "vendor_id",
- dev->node_props.vendor_id);
- sysfs_show_32bit_prop(buffer, "device_id",
- dev->node_props.device_id);
- sysfs_show_32bit_prop(buffer, "location_id",
- dev->node_props.location_id);
- sysfs_show_32bit_prop(buffer, "drm_render_minor",
- dev->node_props.drm_render_minor);
- sysfs_show_64bit_prop(buffer, "hive_id",
- dev->node_props.hive_id);
- sysfs_show_32bit_prop(buffer, "num_sdma_engines",
- dev->node_props.num_sdma_engines);
- sysfs_show_32bit_prop(buffer, "num_sdma_xgmi_engines",
- dev->node_props.num_sdma_xgmi_engines);
- sysfs_show_32bit_prop(buffer, "num_sdma_queues_per_engine",
- dev->node_props.num_sdma_queues_per_engine);
- sysfs_show_32bit_prop(buffer, "num_cp_queues",
- dev->node_props.num_cp_queues);
- sysfs_show_64bit_prop(buffer, "unique_id",
- dev->node_props.unique_id);
- if (dev->gpu) {
- log_max_watch_addr =
- __ilog2_u32(dev->gpu->device_info->num_of_watch_points);
- if (log_max_watch_addr) {
- dev->node_props.capability |=
- HSA_CAP_WATCH_POINTS_SUPPORTED;
- dev->node_props.capability |=
- ((log_max_watch_addr <<
- HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT) &
- HSA_CAP_WATCH_POINTS_TOTALBITS_MASK);
- }
- if (dev->gpu->device_info->asic_family == CHIP_TONGA)
- dev->node_props.capability |=
- HSA_CAP_AQL_QUEUE_DOUBLE_MAP;
- sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute",
- dev->node_props.max_engine_clk_fcompute);
- sysfs_show_64bit_prop(buffer, "local_mem_size",
- (unsigned long long int) 0);
- sysfs_show_32bit_prop(buffer, "fw_version",
- dev->gpu->mec_fw_version);
- sysfs_show_32bit_prop(buffer, "capability",
- dev->node_props.capability);
- sysfs_show_32bit_prop(buffer, "sdma_fw_version",
- dev->gpu->sdma_fw_version);
- }
- return sysfs_show_32bit_prop(buffer, "max_engine_clk_ccompute",
- cpufreq_quick_get_max(0)/1000);
- }
- static const struct sysfs_ops node_ops = {
- .show = node_show,
- };
- static struct kobj_type node_type = {
- .release = kfd_topology_kobj_release,
- .sysfs_ops = &node_ops,
- };
- static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr)
- {
- sysfs_remove_file(kobj, attr);
- kobject_del(kobj);
- kobject_put(kobj);
- }
- static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev)
- {
- struct kfd_iolink_properties *iolink;
- struct kfd_cache_properties *cache;
- struct kfd_mem_properties *mem;
- struct kfd_perf_properties *perf;
- if (dev->kobj_iolink) {
- list_for_each_entry(iolink, &dev->io_link_props, list)
- if (iolink->kobj) {
- kfd_remove_sysfs_file(iolink->kobj,
- &iolink->attr);
- iolink->kobj = NULL;
- }
- kobject_del(dev->kobj_iolink);
- kobject_put(dev->kobj_iolink);
- dev->kobj_iolink = NULL;
- }
- if (dev->kobj_cache) {
- list_for_each_entry(cache, &dev->cache_props, list)
- if (cache->kobj) {
- kfd_remove_sysfs_file(cache->kobj,
- &cache->attr);
- cache->kobj = NULL;
- }
- kobject_del(dev->kobj_cache);
- kobject_put(dev->kobj_cache);
- dev->kobj_cache = NULL;
- }
- if (dev->kobj_mem) {
- list_for_each_entry(mem, &dev->mem_props, list)
- if (mem->kobj) {
- kfd_remove_sysfs_file(mem->kobj, &mem->attr);
- mem->kobj = NULL;
- }
- kobject_del(dev->kobj_mem);
- kobject_put(dev->kobj_mem);
- dev->kobj_mem = NULL;
- }
- if (dev->kobj_perf) {
- list_for_each_entry(perf, &dev->perf_props, list) {
- kfree(perf->attr_group);
- perf->attr_group = NULL;
- }
- kobject_del(dev->kobj_perf);
- kobject_put(dev->kobj_perf);
- dev->kobj_perf = NULL;
- }
- if (dev->kobj_node) {
- sysfs_remove_file(dev->kobj_node, &dev->attr_gpuid);
- sysfs_remove_file(dev->kobj_node, &dev->attr_name);
- sysfs_remove_file(dev->kobj_node, &dev->attr_props);
- kobject_del(dev->kobj_node);
- kobject_put(dev->kobj_node);
- dev->kobj_node = NULL;
- }
- }
- static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
- uint32_t id)
- {
- struct kfd_iolink_properties *iolink;
- struct kfd_cache_properties *cache;
- struct kfd_mem_properties *mem;
- struct kfd_perf_properties *perf;
- int ret;
- uint32_t i, num_attrs;
- struct attribute **attrs;
- if (WARN_ON(dev->kobj_node))
- return -EEXIST;
- /*
- * Creating the sysfs folders
- */
- dev->kobj_node = kfd_alloc_struct(dev->kobj_node);
- if (!dev->kobj_node)
- return -ENOMEM;
- ret = kobject_init_and_add(dev->kobj_node, &node_type,
- sys_props.kobj_nodes, "%d", id);
- if (ret < 0)
- return ret;
- dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node);
- if (!dev->kobj_mem)
- return -ENOMEM;
- dev->kobj_cache = kobject_create_and_add("caches", dev->kobj_node);
- if (!dev->kobj_cache)
- return -ENOMEM;
- dev->kobj_iolink = kobject_create_and_add("io_links", dev->kobj_node);
- if (!dev->kobj_iolink)
- return -ENOMEM;
- dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node);
- if (!dev->kobj_perf)
- return -ENOMEM;
- /*
- * Creating sysfs files for node properties
- */
- dev->attr_gpuid.name = "gpu_id";
- dev->attr_gpuid.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&dev->attr_gpuid);
- dev->attr_name.name = "name";
- dev->attr_name.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&dev->attr_name);
- dev->attr_props.name = "properties";
- dev->attr_props.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&dev->attr_props);
- ret = sysfs_create_file(dev->kobj_node, &dev->attr_gpuid);
- if (ret < 0)
- return ret;
- ret = sysfs_create_file(dev->kobj_node, &dev->attr_name);
- if (ret < 0)
- return ret;
- ret = sysfs_create_file(dev->kobj_node, &dev->attr_props);
- if (ret < 0)
- return ret;
- i = 0;
- list_for_each_entry(mem, &dev->mem_props, list) {
- mem->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
- if (!mem->kobj)
- return -ENOMEM;
- ret = kobject_init_and_add(mem->kobj, &mem_type,
- dev->kobj_mem, "%d", i);
- if (ret < 0)
- return ret;
- mem->attr.name = "properties";
- mem->attr.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&mem->attr);
- ret = sysfs_create_file(mem->kobj, &mem->attr);
- if (ret < 0)
- return ret;
- i++;
- }
- i = 0;
- list_for_each_entry(cache, &dev->cache_props, list) {
- cache->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
- if (!cache->kobj)
- return -ENOMEM;
- ret = kobject_init_and_add(cache->kobj, &cache_type,
- dev->kobj_cache, "%d", i);
- if (ret < 0)
- return ret;
- cache->attr.name = "properties";
- cache->attr.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&cache->attr);
- ret = sysfs_create_file(cache->kobj, &cache->attr);
- if (ret < 0)
- return ret;
- i++;
- }
- i = 0;
- list_for_each_entry(iolink, &dev->io_link_props, list) {
- iolink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
- if (!iolink->kobj)
- return -ENOMEM;
- ret = kobject_init_and_add(iolink->kobj, &iolink_type,
- dev->kobj_iolink, "%d", i);
- if (ret < 0)
- return ret;
- iolink->attr.name = "properties";
- iolink->attr.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&iolink->attr);
- ret = sysfs_create_file(iolink->kobj, &iolink->attr);
- if (ret < 0)
- return ret;
- i++;
- }
- /* All hardware blocks have the same number of attributes. */
- num_attrs = ARRAY_SIZE(perf_attr_iommu);
- list_for_each_entry(perf, &dev->perf_props, list) {
- perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr)
- * num_attrs + sizeof(struct attribute_group),
- GFP_KERNEL);
- if (!perf->attr_group)
- return -ENOMEM;
- attrs = (struct attribute **)(perf->attr_group + 1);
- if (!strcmp(perf->block_name, "iommu")) {
- /* Information of IOMMU's num_counters and counter_ids is shown
- * under /sys/bus/event_source/devices/amd_iommu. We don't
- * duplicate here.
- */
- perf_attr_iommu[0].data = perf->max_concurrent;
- for (i = 0; i < num_attrs; i++)
- attrs[i] = &perf_attr_iommu[i].attr.attr;
- }
- perf->attr_group->name = perf->block_name;
- perf->attr_group->attrs = attrs;
- ret = sysfs_create_group(dev->kobj_perf, perf->attr_group);
- if (ret < 0)
- return ret;
- }
- return 0;
- }
- /* Called with write topology lock acquired */
- static int kfd_build_sysfs_node_tree(void)
- {
- struct kfd_topology_device *dev;
- int ret;
- uint32_t i = 0;
- list_for_each_entry(dev, &topology_device_list, list) {
- ret = kfd_build_sysfs_node_entry(dev, i);
- if (ret < 0)
- return ret;
- i++;
- }
- return 0;
- }
- /* Called with write topology lock acquired */
- static void kfd_remove_sysfs_node_tree(void)
- {
- struct kfd_topology_device *dev;
- list_for_each_entry(dev, &topology_device_list, list)
- kfd_remove_sysfs_node_entry(dev);
- }
- static int kfd_topology_update_sysfs(void)
- {
- int ret;
- pr_info("Creating topology SYSFS entries\n");
- if (!sys_props.kobj_topology) {
- sys_props.kobj_topology =
- kfd_alloc_struct(sys_props.kobj_topology);
- if (!sys_props.kobj_topology)
- return -ENOMEM;
- ret = kobject_init_and_add(sys_props.kobj_topology,
- &sysprops_type, &kfd_device->kobj,
- "topology");
- if (ret < 0)
- return ret;
- sys_props.kobj_nodes = kobject_create_and_add("nodes",
- sys_props.kobj_topology);
- if (!sys_props.kobj_nodes)
- return -ENOMEM;
- sys_props.attr_genid.name = "generation_id";
- sys_props.attr_genid.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&sys_props.attr_genid);
- ret = sysfs_create_file(sys_props.kobj_topology,
- &sys_props.attr_genid);
- if (ret < 0)
- return ret;
- sys_props.attr_props.name = "system_properties";
- sys_props.attr_props.mode = KFD_SYSFS_FILE_MODE;
- sysfs_attr_init(&sys_props.attr_props);
- ret = sysfs_create_file(sys_props.kobj_topology,
- &sys_props.attr_props);
- if (ret < 0)
- return ret;
- }
- kfd_remove_sysfs_node_tree();
- return kfd_build_sysfs_node_tree();
- }
- static void kfd_topology_release_sysfs(void)
- {
- kfd_remove_sysfs_node_tree();
- if (sys_props.kobj_topology) {
- sysfs_remove_file(sys_props.kobj_topology,
- &sys_props.attr_genid);
- sysfs_remove_file(sys_props.kobj_topology,
- &sys_props.attr_props);
- if (sys_props.kobj_nodes) {
- kobject_del(sys_props.kobj_nodes);
- kobject_put(sys_props.kobj_nodes);
- sys_props.kobj_nodes = NULL;
- }
- kobject_del(sys_props.kobj_topology);
- kobject_put(sys_props.kobj_topology);
- sys_props.kobj_topology = NULL;
- }
- }
- /* Called with write topology_lock acquired */
- static void kfd_topology_update_device_list(struct list_head *temp_list,
- struct list_head *master_list)
- {
- while (!list_empty(temp_list)) {
- list_move_tail(temp_list->next, master_list);
- sys_props.num_devices++;
- }
- }
- static void kfd_debug_print_topology(void)
- {
- struct kfd_topology_device *dev;
- down_read(&topology_lock);
- dev = list_last_entry(&topology_device_list,
- struct kfd_topology_device, list);
- if (dev) {
- if (dev->node_props.cpu_cores_count &&
- dev->node_props.simd_count) {
- pr_info("Topology: Add APU node [0x%0x:0x%0x]\n",
- dev->node_props.device_id,
- dev->node_props.vendor_id);
- } else if (dev->node_props.cpu_cores_count)
- pr_info("Topology: Add CPU node\n");
- else if (dev->node_props.simd_count)
- pr_info("Topology: Add dGPU node [0x%0x:0x%0x]\n",
- dev->node_props.device_id,
- dev->node_props.vendor_id);
- }
- up_read(&topology_lock);
- }
- /* Helper function for intializing platform_xx members of
- * kfd_system_properties. Uses OEM info from the last CPU/APU node.
- */
- static void kfd_update_system_properties(void)
- {
- struct kfd_topology_device *dev;
- down_read(&topology_lock);
- dev = list_last_entry(&topology_device_list,
- struct kfd_topology_device, list);
- if (dev) {
- sys_props.platform_id =
- (*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK;
- sys_props.platform_oem = *((uint64_t *)dev->oem_table_id);
- sys_props.platform_rev = dev->oem_revision;
- }
- up_read(&topology_lock);
- }
- static void find_system_memory(const struct dmi_header *dm,
- void *private)
- {
- struct kfd_mem_properties *mem;
- u16 mem_width, mem_clock;
- struct kfd_topology_device *kdev =
- (struct kfd_topology_device *)private;
- const u8 *dmi_data = (const u8 *)(dm + 1);
- if (dm->type == DMI_ENTRY_MEM_DEVICE && dm->length >= 0x15) {
- mem_width = (u16)(*(const u16 *)(dmi_data + 0x6));
- mem_clock = (u16)(*(const u16 *)(dmi_data + 0x11));
- list_for_each_entry(mem, &kdev->mem_props, list) {
- if (mem_width != 0xFFFF && mem_width != 0)
- mem->width = mem_width;
- if (mem_clock != 0)
- mem->mem_clk_max = mem_clock;
- }
- }
- }
- /*
- * Performance counters information is not part of CRAT but we would like to
- * put them in the sysfs under topology directory for Thunk to get the data.
- * This function is called before updating the sysfs.
- */
- static int kfd_add_perf_to_topology(struct kfd_topology_device *kdev)
- {
- /* These are the only counters supported so far */
- return kfd_iommu_add_perf_counters(kdev);
- }
- /* kfd_add_non_crat_information - Add information that is not currently
- * defined in CRAT but is necessary for KFD topology
- * @dev - topology device to which addition info is added
- */
- static void kfd_add_non_crat_information(struct kfd_topology_device *kdev)
- {
- /* Check if CPU only node. */
- if (!kdev->gpu) {
- /* Add system memory information */
- dmi_walk(find_system_memory, kdev);
- }
- /* TODO: For GPU node, rearrange code from kfd_topology_add_device */
- }
- /* kfd_is_acpi_crat_invalid - CRAT from ACPI is valid only for AMD APU devices.
- * Ignore CRAT for all other devices. AMD APU is identified if both CPU
- * and GPU cores are present.
- * @device_list - topology device list created by parsing ACPI CRAT table.
- * @return - TRUE if invalid, FALSE is valid.
- */
- static bool kfd_is_acpi_crat_invalid(struct list_head *device_list)
- {
- struct kfd_topology_device *dev;
- list_for_each_entry(dev, device_list, list) {
- if (dev->node_props.cpu_cores_count &&
- dev->node_props.simd_count)
- return false;
- }
- pr_info("Ignoring ACPI CRAT on non-APU system\n");
- return true;
- }
- int kfd_topology_init(void)
- {
- void *crat_image = NULL;
- size_t image_size = 0;
- int ret;
- struct list_head temp_topology_device_list;
- int cpu_only_node = 0;
- struct kfd_topology_device *kdev;
- int proximity_domain;
- /* topology_device_list - Master list of all topology devices
- * temp_topology_device_list - temporary list created while parsing CRAT
- * or VCRAT. Once parsing is complete the contents of list is moved to
- * topology_device_list
- */
- /* Initialize the head for the both the lists */
- INIT_LIST_HEAD(&topology_device_list);
- INIT_LIST_HEAD(&temp_topology_device_list);
- init_rwsem(&topology_lock);
- memset(&sys_props, 0, sizeof(sys_props));
- /* Proximity domains in ACPI CRAT tables start counting at
- * 0. The same should be true for virtual CRAT tables created
- * at this stage. GPUs added later in kfd_topology_add_device
- * use a counter.
- */
- proximity_domain = 0;
- /*
- * Get the CRAT image from the ACPI. If ACPI doesn't have one
- * or if ACPI CRAT is invalid create a virtual CRAT.
- * NOTE: The current implementation expects all AMD APUs to have
- * CRAT. If no CRAT is available, it is assumed to be a CPU
- */
- ret = kfd_create_crat_image_acpi(&crat_image, &image_size);
- if (!ret) {
- ret = kfd_parse_crat_table(crat_image,
- &temp_topology_device_list,
- proximity_domain);
- if (ret ||
- kfd_is_acpi_crat_invalid(&temp_topology_device_list)) {
- kfd_release_topology_device_list(
- &temp_topology_device_list);
- kfd_destroy_crat_image(crat_image);
- crat_image = NULL;
- }
- }
- if (!crat_image) {
- ret = kfd_create_crat_image_virtual(&crat_image, &image_size,
- COMPUTE_UNIT_CPU, NULL,
- proximity_domain);
- cpu_only_node = 1;
- if (ret) {
- pr_err("Error creating VCRAT table for CPU\n");
- return ret;
- }
- ret = kfd_parse_crat_table(crat_image,
- &temp_topology_device_list,
- proximity_domain);
- if (ret) {
- pr_err("Error parsing VCRAT table for CPU\n");
- goto err;
- }
- }
- kdev = list_first_entry(&temp_topology_device_list,
- struct kfd_topology_device, list);
- kfd_add_perf_to_topology(kdev);
- down_write(&topology_lock);
- kfd_topology_update_device_list(&temp_topology_device_list,
- &topology_device_list);
- atomic_set(&topology_crat_proximity_domain, sys_props.num_devices-1);
- ret = kfd_topology_update_sysfs();
- up_write(&topology_lock);
- if (!ret) {
- sys_props.generation_count++;
- kfd_update_system_properties();
- kfd_debug_print_topology();
- pr_info("Finished initializing topology\n");
- } else
- pr_err("Failed to update topology in sysfs ret=%d\n", ret);
- /* For nodes with GPU, this information gets added
- * when GPU is detected (kfd_topology_add_device).
- */
- if (cpu_only_node) {
- /* Add additional information to CPU only node created above */
- down_write(&topology_lock);
- kdev = list_first_entry(&topology_device_list,
- struct kfd_topology_device, list);
- up_write(&topology_lock);
- kfd_add_non_crat_information(kdev);
- }
- err:
- kfd_destroy_crat_image(crat_image);
- return ret;
- }
- void kfd_topology_shutdown(void)
- {
- down_write(&topology_lock);
- kfd_topology_release_sysfs();
- kfd_release_live_view();
- up_write(&topology_lock);
- }
- static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu)
- {
- uint32_t hashout;
- uint32_t buf[7];
- uint64_t local_mem_size;
- int i;
- struct kfd_local_mem_info local_mem_info;
- if (!gpu)
- return 0;
- amdgpu_amdkfd_get_local_mem_info(gpu->kgd, &local_mem_info);
- local_mem_size = local_mem_info.local_mem_size_private +
- local_mem_info.local_mem_size_public;
- buf[0] = gpu->pdev->devfn;
- buf[1] = gpu->pdev->subsystem_vendor |
- (gpu->pdev->subsystem_device << 16);
- buf[2] = pci_domain_nr(gpu->pdev->bus);
- buf[3] = gpu->pdev->device;
- buf[4] = gpu->pdev->bus->number;
- buf[5] = lower_32_bits(local_mem_size);
- buf[6] = upper_32_bits(local_mem_size);
- for (i = 0, hashout = 0; i < 7; i++)
- hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH);
- return hashout;
- }
- /* kfd_assign_gpu - Attach @gpu to the correct kfd topology device. If
- * the GPU device is not already present in the topology device
- * list then return NULL. This means a new topology device has to
- * be created for this GPU.
- */
- static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu)
- {
- struct kfd_topology_device *dev;
- struct kfd_topology_device *out_dev = NULL;
- struct kfd_mem_properties *mem;
- struct kfd_cache_properties *cache;
- struct kfd_iolink_properties *iolink;
- down_write(&topology_lock);
- list_for_each_entry(dev, &topology_device_list, list) {
- /* Discrete GPUs need their own topology device list
- * entries. Don't assign them to CPU/APU nodes.
- */
- if (!gpu->device_info->needs_iommu_device &&
- dev->node_props.cpu_cores_count)
- continue;
- if (!dev->gpu && (dev->node_props.simd_count > 0)) {
- dev->gpu = gpu;
- out_dev = dev;
- list_for_each_entry(mem, &dev->mem_props, list)
- mem->gpu = dev->gpu;
- list_for_each_entry(cache, &dev->cache_props, list)
- cache->gpu = dev->gpu;
- list_for_each_entry(iolink, &dev->io_link_props, list)
- iolink->gpu = dev->gpu;
- break;
- }
- }
- up_write(&topology_lock);
- return out_dev;
- }
- static void kfd_notify_gpu_change(uint32_t gpu_id, int arrival)
- {
- /*
- * TODO: Generate an event for thunk about the arrival/removal
- * of the GPU
- */
- }
- /* kfd_fill_mem_clk_max_info - Since CRAT doesn't have memory clock info,
- * patch this after CRAT parsing.
- */
- static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev)
- {
- struct kfd_mem_properties *mem;
- struct kfd_local_mem_info local_mem_info;
- if (!dev)
- return;
- /* Currently, amdgpu driver (amdgpu_mc) deals only with GPUs with
- * single bank of VRAM local memory.
- * for dGPUs - VCRAT reports only one bank of Local Memory
- * for APUs - If CRAT from ACPI reports more than one bank, then
- * all the banks will report the same mem_clk_max information
- */
- amdgpu_amdkfd_get_local_mem_info(dev->gpu->kgd, &local_mem_info);
- list_for_each_entry(mem, &dev->mem_props, list)
- mem->mem_clk_max = local_mem_info.mem_clk_max;
- }
- static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
- {
- struct kfd_iolink_properties *link, *cpu_link;
- struct kfd_topology_device *cpu_dev;
- uint32_t cap;
- uint32_t cpu_flag = CRAT_IOLINK_FLAGS_ENABLED;
- uint32_t flag = CRAT_IOLINK_FLAGS_ENABLED;
- if (!dev || !dev->gpu)
- return;
- pcie_capability_read_dword(dev->gpu->pdev,
- PCI_EXP_DEVCAP2, &cap);
- if (!(cap & (PCI_EXP_DEVCAP2_ATOMIC_COMP32 |
- PCI_EXP_DEVCAP2_ATOMIC_COMP64)))
- cpu_flag |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT |
- CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT;
- if (!dev->gpu->pci_atomic_requested ||
- dev->gpu->device_info->asic_family == CHIP_HAWAII)
- flag |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT |
- CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT;
- /* GPU only creates direct links so apply flags setting to all */
- list_for_each_entry(link, &dev->io_link_props, list) {
- link->flags = flag;
- cpu_dev = kfd_topology_device_by_proximity_domain(
- link->node_to);
- if (cpu_dev) {
- list_for_each_entry(cpu_link,
- &cpu_dev->io_link_props, list)
- if (cpu_link->node_to == link->node_from)
- cpu_link->flags = cpu_flag;
- }
- }
- }
- int kfd_topology_add_device(struct kfd_dev *gpu)
- {
- uint32_t gpu_id;
- struct kfd_topology_device *dev;
- struct kfd_cu_info cu_info;
- int res = 0;
- struct list_head temp_topology_device_list;
- void *crat_image = NULL;
- size_t image_size = 0;
- int proximity_domain;
- struct amdgpu_ras *ctx;
- INIT_LIST_HEAD(&temp_topology_device_list);
- gpu_id = kfd_generate_gpu_id(gpu);
- pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id);
- proximity_domain = atomic_inc_return(&topology_crat_proximity_domain);
- /* Check to see if this gpu device exists in the topology_device_list.
- * If so, assign the gpu to that device,
- * else create a Virtual CRAT for this gpu device and then parse that
- * CRAT to create a new topology device. Once created assign the gpu to
- * that topology device
- */
- dev = kfd_assign_gpu(gpu);
- if (!dev) {
- res = kfd_create_crat_image_virtual(&crat_image, &image_size,
- COMPUTE_UNIT_GPU, gpu,
- proximity_domain);
- if (res) {
- pr_err("Error creating VCRAT for GPU (ID: 0x%x)\n",
- gpu_id);
- return res;
- }
- res = kfd_parse_crat_table(crat_image,
- &temp_topology_device_list,
- proximity_domain);
- if (res) {
- pr_err("Error parsing VCRAT for GPU (ID: 0x%x)\n",
- gpu_id);
- goto err;
- }
- down_write(&topology_lock);
- kfd_topology_update_device_list(&temp_topology_device_list,
- &topology_device_list);
- /* Update the SYSFS tree, since we added another topology
- * device
- */
- res = kfd_topology_update_sysfs();
- up_write(&topology_lock);
- if (!res)
- sys_props.generation_count++;
- else
- pr_err("Failed to update GPU (ID: 0x%x) to sysfs topology. res=%d\n",
- gpu_id, res);
- dev = kfd_assign_gpu(gpu);
- if (WARN_ON(!dev)) {
- res = -ENODEV;
- goto err;
- }
- }
- dev->gpu_id = gpu_id;
- gpu->id = gpu_id;
- /* TODO: Move the following lines to function
- * kfd_add_non_crat_information
- */
- /* Fill-in additional information that is not available in CRAT but
- * needed for the topology
- */
- amdgpu_amdkfd_get_cu_info(dev->gpu->kgd, &cu_info);
- strncpy(dev->node_props.name, gpu->device_info->asic_name,
- KFD_TOPOLOGY_PUBLIC_NAME_SIZE);
- dev->node_props.simd_arrays_per_engine =
- cu_info.num_shader_arrays_per_engine;
- dev->node_props.vendor_id = gpu->pdev->vendor;
- dev->node_props.device_id = gpu->pdev->device;
- dev->node_props.location_id = pci_dev_id(gpu->pdev);
- dev->node_props.max_engine_clk_fcompute =
- amdgpu_amdkfd_get_max_engine_clock_in_mhz(dev->gpu->kgd);
- dev->node_props.max_engine_clk_ccompute =
- cpufreq_quick_get_max(0) / 1000;
- dev->node_props.drm_render_minor =
- gpu->shared_resources.drm_render_minor;
- dev->node_props.hive_id = gpu->hive_id;
- dev->node_props.num_sdma_engines = gpu->device_info->num_sdma_engines;
- dev->node_props.num_sdma_xgmi_engines =
- gpu->device_info->num_xgmi_sdma_engines;
- dev->node_props.num_sdma_queues_per_engine =
- gpu->device_info->num_sdma_queues_per_engine;
- dev->node_props.num_gws = (hws_gws_support &&
- dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ?
- amdgpu_amdkfd_get_num_gws(dev->gpu->kgd) : 0;
- dev->node_props.num_cp_queues = get_cp_queues_num(dev->gpu->dqm);
- dev->node_props.unique_id = gpu->unique_id;
- kfd_fill_mem_clk_max_info(dev);
- kfd_fill_iolink_non_crat_info(dev);
- switch (dev->gpu->device_info->asic_family) {
- case CHIP_KAVERI:
- case CHIP_HAWAII:
- case CHIP_TONGA:
- dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_PRE_1_0 <<
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
- break;
- case CHIP_CARRIZO:
- case CHIP_FIJI:
- case CHIP_POLARIS10:
- case CHIP_POLARIS11:
- case CHIP_POLARIS12:
- case CHIP_VEGAM:
- pr_debug("Adding doorbell packet type capability\n");
- dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_1_0 <<
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
- break;
- case CHIP_VEGA10:
- case CHIP_VEGA12:
- case CHIP_VEGA20:
- case CHIP_RAVEN:
- case CHIP_RENOIR:
- case CHIP_ARCTURUS:
- case CHIP_NAVI10:
- case CHIP_NAVI12:
- case CHIP_NAVI14:
- dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_2_0 <<
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
- HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
- break;
- default:
- WARN(1, "Unexpected ASIC family %u",
- dev->gpu->device_info->asic_family);
- }
- /*
- * Overwrite ATS capability according to needs_iommu_device to fix
- * potential missing corresponding bit in CRAT of BIOS.
- */
- if (dev->gpu->device_info->needs_iommu_device)
- dev->node_props.capability |= HSA_CAP_ATS_PRESENT;
- else
- dev->node_props.capability &= ~HSA_CAP_ATS_PRESENT;
- /* Fix errors in CZ CRAT.
- * simd_count: Carrizo CRAT reports wrong simd_count, probably
- * because it doesn't consider masked out CUs
- * max_waves_per_simd: Carrizo reports wrong max_waves_per_simd
- */
- if (dev->gpu->device_info->asic_family == CHIP_CARRIZO) {
- dev->node_props.simd_count =
- cu_info.simd_per_cu * cu_info.cu_active_number;
- dev->node_props.max_waves_per_simd = 10;
- }
- ctx = amdgpu_ras_get_context((struct amdgpu_device *)(dev->gpu->kgd));
- if (ctx) {
- /* kfd only concerns sram ecc on GFX/SDMA and HBM ecc on UMC */
- dev->node_props.capability |=
- (((ctx->features & BIT(AMDGPU_RAS_BLOCK__SDMA)) != 0) ||
- ((ctx->features & BIT(AMDGPU_RAS_BLOCK__GFX)) != 0)) ?
- HSA_CAP_SRAM_EDCSUPPORTED : 0;
- dev->node_props.capability |= ((ctx->features & BIT(AMDGPU_RAS_BLOCK__UMC)) != 0) ?
- HSA_CAP_MEM_EDCSUPPORTED : 0;
- dev->node_props.capability |= (ctx->features != 0) ?
- HSA_CAP_RASEVENTNOTIFY : 0;
- }
- kfd_debug_print_topology();
- if (!res)
- kfd_notify_gpu_change(gpu_id, 1);
- err:
- kfd_destroy_crat_image(crat_image);
- return res;
- }
- int kfd_topology_remove_device(struct kfd_dev *gpu)
- {
- struct kfd_topology_device *dev, *tmp;
- uint32_t gpu_id;
- int res = -ENODEV;
- down_write(&topology_lock);
- list_for_each_entry_safe(dev, tmp, &topology_device_list, list)
- if (dev->gpu == gpu) {
- gpu_id = dev->gpu_id;
- kfd_remove_sysfs_node_entry(dev);
- kfd_release_topology_device(dev);
- sys_props.num_devices--;
- res = 0;
- if (kfd_topology_update_sysfs() < 0)
- kfd_topology_release_sysfs();
- break;
- }
- up_write(&topology_lock);
- if (!res)
- kfd_notify_gpu_change(gpu_id, 0);
- return res;
- }
- /* kfd_topology_enum_kfd_devices - Enumerate through all devices in KFD
- * topology. If GPU device is found @idx, then valid kfd_dev pointer is
- * returned through @kdev
- * Return - 0: On success (@kdev will be NULL for non GPU nodes)
- * -1: If end of list
- */
- int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev)
- {
- struct kfd_topology_device *top_dev;
- uint8_t device_idx = 0;
- *kdev = NULL;
- down_read(&topology_lock);
- list_for_each_entry(top_dev, &topology_device_list, list) {
- if (device_idx == idx) {
- *kdev = top_dev->gpu;
- up_read(&topology_lock);
- return 0;
- }
- device_idx++;
- }
- up_read(&topology_lock);
- return -1;
- }
- static int kfd_cpumask_to_apic_id(const struct cpumask *cpumask)
- {
- int first_cpu_of_numa_node;
- if (!cpumask || cpumask == cpu_none_mask)
- return -1;
- first_cpu_of_numa_node = cpumask_first(cpumask);
- if (first_cpu_of_numa_node >= nr_cpu_ids)
- return -1;
- #ifdef CONFIG_X86_64
- return cpu_data(first_cpu_of_numa_node).apicid;
- #else
- return first_cpu_of_numa_node;
- #endif
- }
- /* kfd_numa_node_to_apic_id - Returns the APIC ID of the first logical processor
- * of the given NUMA node (numa_node_id)
- * Return -1 on failure
- */
- int kfd_numa_node_to_apic_id(int numa_node_id)
- {
- if (numa_node_id == -1) {
- pr_warn("Invalid NUMA Node. Use online CPU mask\n");
- return kfd_cpumask_to_apic_id(cpu_online_mask);
- }
- return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id));
- }
- #if defined(CONFIG_DEBUG_FS)
- int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data)
- {
- struct kfd_topology_device *dev;
- unsigned int i = 0;
- int r = 0;
- down_read(&topology_lock);
- list_for_each_entry(dev, &topology_device_list, list) {
- if (!dev->gpu) {
- i++;
- continue;
- }
- seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
- r = dqm_debugfs_hqds(m, dev->gpu->dqm);
- if (r)
- break;
- }
- up_read(&topology_lock);
- return r;
- }
- int kfd_debugfs_rls_by_device(struct seq_file *m, void *data)
- {
- struct kfd_topology_device *dev;
- unsigned int i = 0;
- int r = 0;
- down_read(&topology_lock);
- list_for_each_entry(dev, &topology_device_list, list) {
- if (!dev->gpu) {
- i++;
- continue;
- }
- seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
- r = pm_debugfs_runlist(m, &dev->gpu->dqm->packets);
- if (r)
- break;
- }
- up_read(&topology_lock);
- return r;
- }
- #endif