15b5c4e40SEvgeny Pinchuk /* 25b5c4e40SEvgeny Pinchuk * Copyright 2014 Advanced Micro Devices, Inc. 35b5c4e40SEvgeny Pinchuk * 45b5c4e40SEvgeny Pinchuk * Permission is hereby granted, free of charge, to any person obtaining a 55b5c4e40SEvgeny Pinchuk * copy of this software and associated documentation files (the "Software"), 65b5c4e40SEvgeny Pinchuk * to deal in the Software without restriction, including without limitation 75b5c4e40SEvgeny Pinchuk * the rights to use, copy, modify, merge, publish, distribute, sublicense, 85b5c4e40SEvgeny Pinchuk * and/or sell copies of the Software, and to permit persons to whom the 95b5c4e40SEvgeny Pinchuk * Software is furnished to do so, subject to the following conditions: 105b5c4e40SEvgeny Pinchuk * 115b5c4e40SEvgeny Pinchuk * The above copyright notice and this permission notice shall be included in 125b5c4e40SEvgeny Pinchuk * all copies or substantial portions of the Software. 135b5c4e40SEvgeny Pinchuk * 145b5c4e40SEvgeny Pinchuk * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 155b5c4e40SEvgeny Pinchuk * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 165b5c4e40SEvgeny Pinchuk * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 175b5c4e40SEvgeny Pinchuk * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 185b5c4e40SEvgeny Pinchuk * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 195b5c4e40SEvgeny Pinchuk * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 205b5c4e40SEvgeny Pinchuk * OTHER DEALINGS IN THE SOFTWARE. 215b5c4e40SEvgeny Pinchuk */ 225b5c4e40SEvgeny Pinchuk 235b5c4e40SEvgeny Pinchuk #include <linux/types.h> 245b5c4e40SEvgeny Pinchuk #include <linux/kernel.h> 255b5c4e40SEvgeny Pinchuk #include <linux/pci.h> 265b5c4e40SEvgeny Pinchuk #include <linux/errno.h> 275b5c4e40SEvgeny Pinchuk #include <linux/acpi.h> 285b5c4e40SEvgeny Pinchuk #include <linux/hash.h> 295b5c4e40SEvgeny Pinchuk #include <linux/cpufreq.h> 30f7c826adSAlexey Skidanov #include <linux/log2.h> 31520b8fb7SFelix Kuehling #include <linux/dmi.h> 32520b8fb7SFelix Kuehling #include <linux/atomic.h> 335b5c4e40SEvgeny Pinchuk 345b5c4e40SEvgeny Pinchuk #include "kfd_priv.h" 355b5c4e40SEvgeny Pinchuk #include "kfd_crat.h" 365b5c4e40SEvgeny Pinchuk #include "kfd_topology.h" 37851a645eSFelix Kuehling #include "kfd_device_queue_manager.h" 3864d1c3a4SFelix Kuehling #include "kfd_iommu.h" 395b5c4e40SEvgeny Pinchuk 404f449311SHarish Kasiviswanathan /* topology_device_list - Master list of all topology devices */ 414f449311SHarish Kasiviswanathan static struct list_head topology_device_list; 42520b8fb7SFelix Kuehling static struct kfd_system_properties sys_props; 435b5c4e40SEvgeny Pinchuk 445b5c4e40SEvgeny Pinchuk static DECLARE_RWSEM(topology_lock); 45520b8fb7SFelix Kuehling static atomic_t topology_crat_proximity_domain; 465b5c4e40SEvgeny Pinchuk 473a87177eSHarish Kasiviswanathan struct kfd_topology_device *kfd_topology_device_by_proximity_domain( 483a87177eSHarish Kasiviswanathan uint32_t proximity_domain) 493a87177eSHarish Kasiviswanathan { 503a87177eSHarish Kasiviswanathan struct kfd_topology_device *top_dev; 513a87177eSHarish Kasiviswanathan struct kfd_topology_device *device = NULL; 523a87177eSHarish Kasiviswanathan 533a87177eSHarish Kasiviswanathan down_read(&topology_lock); 543a87177eSHarish Kasiviswanathan 553a87177eSHarish Kasiviswanathan list_for_each_entry(top_dev, &topology_device_list, list) 563a87177eSHarish Kasiviswanathan if (top_dev->proximity_domain == proximity_domain) { 573a87177eSHarish Kasiviswanathan device = top_dev; 583a87177eSHarish Kasiviswanathan break; 593a87177eSHarish Kasiviswanathan } 603a87177eSHarish Kasiviswanathan 613a87177eSHarish Kasiviswanathan up_read(&topology_lock); 623a87177eSHarish Kasiviswanathan 633a87177eSHarish Kasiviswanathan return device; 643a87177eSHarish Kasiviswanathan } 653a87177eSHarish Kasiviswanathan 665b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) 675b5c4e40SEvgeny Pinchuk { 685b5c4e40SEvgeny Pinchuk struct kfd_topology_device *top_dev; 695b5c4e40SEvgeny Pinchuk struct kfd_dev *device = NULL; 705b5c4e40SEvgeny Pinchuk 715b5c4e40SEvgeny Pinchuk down_read(&topology_lock); 725b5c4e40SEvgeny Pinchuk 735b5c4e40SEvgeny Pinchuk list_for_each_entry(top_dev, &topology_device_list, list) 745b5c4e40SEvgeny Pinchuk if (top_dev->gpu_id == gpu_id) { 755b5c4e40SEvgeny Pinchuk device = top_dev->gpu; 765b5c4e40SEvgeny Pinchuk break; 775b5c4e40SEvgeny Pinchuk } 785b5c4e40SEvgeny Pinchuk 795b5c4e40SEvgeny Pinchuk up_read(&topology_lock); 805b5c4e40SEvgeny Pinchuk 815b5c4e40SEvgeny Pinchuk return device; 825b5c4e40SEvgeny Pinchuk } 835b5c4e40SEvgeny Pinchuk 845b5c4e40SEvgeny Pinchuk struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev) 855b5c4e40SEvgeny Pinchuk { 865b5c4e40SEvgeny Pinchuk struct kfd_topology_device *top_dev; 875b5c4e40SEvgeny Pinchuk struct kfd_dev *device = NULL; 885b5c4e40SEvgeny Pinchuk 895b5c4e40SEvgeny Pinchuk down_read(&topology_lock); 905b5c4e40SEvgeny Pinchuk 915b5c4e40SEvgeny Pinchuk list_for_each_entry(top_dev, &topology_device_list, list) 925b5c4e40SEvgeny Pinchuk if (top_dev->gpu->pdev == pdev) { 935b5c4e40SEvgeny Pinchuk device = top_dev->gpu; 945b5c4e40SEvgeny Pinchuk break; 955b5c4e40SEvgeny Pinchuk } 965b5c4e40SEvgeny Pinchuk 975b5c4e40SEvgeny Pinchuk up_read(&topology_lock); 985b5c4e40SEvgeny Pinchuk 995b5c4e40SEvgeny Pinchuk return device; 1005b5c4e40SEvgeny Pinchuk } 1015b5c4e40SEvgeny Pinchuk 1023a87177eSHarish Kasiviswanathan /* Called with write topology_lock acquired */ 1035b5c4e40SEvgeny Pinchuk static void kfd_release_topology_device(struct kfd_topology_device *dev) 1045b5c4e40SEvgeny Pinchuk { 1055b5c4e40SEvgeny Pinchuk struct kfd_mem_properties *mem; 1065b5c4e40SEvgeny Pinchuk struct kfd_cache_properties *cache; 1075b5c4e40SEvgeny Pinchuk struct kfd_iolink_properties *iolink; 108f4757347SAmber Lin struct kfd_perf_properties *perf; 1095b5c4e40SEvgeny Pinchuk 1105b5c4e40SEvgeny Pinchuk list_del(&dev->list); 1115b5c4e40SEvgeny Pinchuk 1125b5c4e40SEvgeny Pinchuk while (dev->mem_props.next != &dev->mem_props) { 1135b5c4e40SEvgeny Pinchuk mem = container_of(dev->mem_props.next, 1145b5c4e40SEvgeny Pinchuk struct kfd_mem_properties, list); 1155b5c4e40SEvgeny Pinchuk list_del(&mem->list); 1165b5c4e40SEvgeny Pinchuk kfree(mem); 1175b5c4e40SEvgeny Pinchuk } 1185b5c4e40SEvgeny Pinchuk 1195b5c4e40SEvgeny Pinchuk while (dev->cache_props.next != &dev->cache_props) { 1205b5c4e40SEvgeny Pinchuk cache = container_of(dev->cache_props.next, 1215b5c4e40SEvgeny Pinchuk struct kfd_cache_properties, list); 1225b5c4e40SEvgeny Pinchuk list_del(&cache->list); 1235b5c4e40SEvgeny Pinchuk kfree(cache); 1245b5c4e40SEvgeny Pinchuk } 1255b5c4e40SEvgeny Pinchuk 1265b5c4e40SEvgeny Pinchuk while (dev->io_link_props.next != &dev->io_link_props) { 1275b5c4e40SEvgeny Pinchuk iolink = container_of(dev->io_link_props.next, 1285b5c4e40SEvgeny Pinchuk struct kfd_iolink_properties, list); 1295b5c4e40SEvgeny Pinchuk list_del(&iolink->list); 1305b5c4e40SEvgeny Pinchuk kfree(iolink); 1315b5c4e40SEvgeny Pinchuk } 1325b5c4e40SEvgeny Pinchuk 133f4757347SAmber Lin while (dev->perf_props.next != &dev->perf_props) { 134f4757347SAmber Lin perf = container_of(dev->perf_props.next, 135f4757347SAmber Lin struct kfd_perf_properties, list); 136f4757347SAmber Lin list_del(&perf->list); 137f4757347SAmber Lin kfree(perf); 138f4757347SAmber Lin } 139f4757347SAmber Lin 1405b5c4e40SEvgeny Pinchuk kfree(dev); 1415b5c4e40SEvgeny Pinchuk } 1425b5c4e40SEvgeny Pinchuk 1434f449311SHarish Kasiviswanathan void kfd_release_topology_device_list(struct list_head *device_list) 1445b5c4e40SEvgeny Pinchuk { 1455b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 1465b5c4e40SEvgeny Pinchuk 1474f449311SHarish Kasiviswanathan while (!list_empty(device_list)) { 1484f449311SHarish Kasiviswanathan dev = list_first_entry(device_list, 1495b5c4e40SEvgeny Pinchuk struct kfd_topology_device, list); 1505b5c4e40SEvgeny Pinchuk kfd_release_topology_device(dev); 1515b5c4e40SEvgeny Pinchuk } 1524f449311SHarish Kasiviswanathan } 1535b5c4e40SEvgeny Pinchuk 1544f449311SHarish Kasiviswanathan static void kfd_release_live_view(void) 1554f449311SHarish Kasiviswanathan { 1564f449311SHarish Kasiviswanathan kfd_release_topology_device_list(&topology_device_list); 1575b5c4e40SEvgeny Pinchuk memset(&sys_props, 0, sizeof(sys_props)); 1585b5c4e40SEvgeny Pinchuk } 1595b5c4e40SEvgeny Pinchuk 1604f449311SHarish Kasiviswanathan struct kfd_topology_device *kfd_create_topology_device( 1614f449311SHarish Kasiviswanathan struct list_head *device_list) 1625b5c4e40SEvgeny Pinchuk { 1635b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 1645b5c4e40SEvgeny Pinchuk 1655b5c4e40SEvgeny Pinchuk dev = kfd_alloc_struct(dev); 1664eacc26bSKent Russell if (!dev) { 1675b5c4e40SEvgeny Pinchuk pr_err("No memory to allocate a topology device"); 16816b9201cSOded Gabbay return NULL; 1695b5c4e40SEvgeny Pinchuk } 1705b5c4e40SEvgeny Pinchuk 1715b5c4e40SEvgeny Pinchuk INIT_LIST_HEAD(&dev->mem_props); 1725b5c4e40SEvgeny Pinchuk INIT_LIST_HEAD(&dev->cache_props); 1735b5c4e40SEvgeny Pinchuk INIT_LIST_HEAD(&dev->io_link_props); 174f4757347SAmber Lin INIT_LIST_HEAD(&dev->perf_props); 1755b5c4e40SEvgeny Pinchuk 1764f449311SHarish Kasiviswanathan list_add_tail(&dev->list, device_list); 1775b5c4e40SEvgeny Pinchuk 1785b5c4e40SEvgeny Pinchuk return dev; 1795b5c4e40SEvgeny Pinchuk } 1805b5c4e40SEvgeny Pinchuk 1815b5c4e40SEvgeny Pinchuk 1825b5c4e40SEvgeny Pinchuk #define sysfs_show_gen_prop(buffer, fmt, ...) \ 1835b5c4e40SEvgeny Pinchuk snprintf(buffer, PAGE_SIZE, "%s"fmt, buffer, __VA_ARGS__) 1845b5c4e40SEvgeny Pinchuk #define sysfs_show_32bit_prop(buffer, name, value) \ 1855b5c4e40SEvgeny Pinchuk sysfs_show_gen_prop(buffer, "%s %u\n", name, value) 1865b5c4e40SEvgeny Pinchuk #define sysfs_show_64bit_prop(buffer, name, value) \ 1875b5c4e40SEvgeny Pinchuk sysfs_show_gen_prop(buffer, "%s %llu\n", name, value) 1885b5c4e40SEvgeny Pinchuk #define sysfs_show_32bit_val(buffer, value) \ 1895b5c4e40SEvgeny Pinchuk sysfs_show_gen_prop(buffer, "%u\n", value) 1905b5c4e40SEvgeny Pinchuk #define sysfs_show_str_val(buffer, value) \ 1915b5c4e40SEvgeny Pinchuk sysfs_show_gen_prop(buffer, "%s\n", value) 1925b5c4e40SEvgeny Pinchuk 1935b5c4e40SEvgeny Pinchuk static ssize_t sysprops_show(struct kobject *kobj, struct attribute *attr, 1945b5c4e40SEvgeny Pinchuk char *buffer) 1955b5c4e40SEvgeny Pinchuk { 1965b5c4e40SEvgeny Pinchuk ssize_t ret; 1975b5c4e40SEvgeny Pinchuk 1985b5c4e40SEvgeny Pinchuk /* Making sure that the buffer is an empty string */ 1995b5c4e40SEvgeny Pinchuk buffer[0] = 0; 2005b5c4e40SEvgeny Pinchuk 2015b5c4e40SEvgeny Pinchuk if (attr == &sys_props.attr_genid) { 2025b5c4e40SEvgeny Pinchuk ret = sysfs_show_32bit_val(buffer, sys_props.generation_count); 2035b5c4e40SEvgeny Pinchuk } else if (attr == &sys_props.attr_props) { 2045b5c4e40SEvgeny Pinchuk sysfs_show_64bit_prop(buffer, "platform_oem", 2055b5c4e40SEvgeny Pinchuk sys_props.platform_oem); 2065b5c4e40SEvgeny Pinchuk sysfs_show_64bit_prop(buffer, "platform_id", 2075b5c4e40SEvgeny Pinchuk sys_props.platform_id); 2085b5c4e40SEvgeny Pinchuk ret = sysfs_show_64bit_prop(buffer, "platform_rev", 2095b5c4e40SEvgeny Pinchuk sys_props.platform_rev); 2105b5c4e40SEvgeny Pinchuk } else { 2115b5c4e40SEvgeny Pinchuk ret = -EINVAL; 2125b5c4e40SEvgeny Pinchuk } 2135b5c4e40SEvgeny Pinchuk 2145b5c4e40SEvgeny Pinchuk return ret; 2155b5c4e40SEvgeny Pinchuk } 2165b5c4e40SEvgeny Pinchuk 2175108d768SYong Zhao static void kfd_topology_kobj_release(struct kobject *kobj) 2185108d768SYong Zhao { 2195108d768SYong Zhao kfree(kobj); 2205108d768SYong Zhao } 2215108d768SYong Zhao 2225b5c4e40SEvgeny Pinchuk static const struct sysfs_ops sysprops_ops = { 2235b5c4e40SEvgeny Pinchuk .show = sysprops_show, 2245b5c4e40SEvgeny Pinchuk }; 2255b5c4e40SEvgeny Pinchuk 2265b5c4e40SEvgeny Pinchuk static struct kobj_type sysprops_type = { 2275108d768SYong Zhao .release = kfd_topology_kobj_release, 2285b5c4e40SEvgeny Pinchuk .sysfs_ops = &sysprops_ops, 2295b5c4e40SEvgeny Pinchuk }; 2305b5c4e40SEvgeny Pinchuk 2315b5c4e40SEvgeny Pinchuk static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr, 2325b5c4e40SEvgeny Pinchuk char *buffer) 2335b5c4e40SEvgeny Pinchuk { 2345b5c4e40SEvgeny Pinchuk ssize_t ret; 2355b5c4e40SEvgeny Pinchuk struct kfd_iolink_properties *iolink; 2365b5c4e40SEvgeny Pinchuk 2375b5c4e40SEvgeny Pinchuk /* Making sure that the buffer is an empty string */ 2385b5c4e40SEvgeny Pinchuk buffer[0] = 0; 2395b5c4e40SEvgeny Pinchuk 2405b5c4e40SEvgeny Pinchuk iolink = container_of(attr, struct kfd_iolink_properties, attr); 2415b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "type", iolink->iolink_type); 2425b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "version_major", iolink->ver_maj); 2435b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "version_minor", iolink->ver_min); 2445b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "node_from", iolink->node_from); 2455b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "node_to", iolink->node_to); 2465b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "weight", iolink->weight); 2475b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "min_latency", iolink->min_latency); 2485b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "max_latency", iolink->max_latency); 2495b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "min_bandwidth", iolink->min_bandwidth); 2505b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "max_bandwidth", iolink->max_bandwidth); 2515b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "recommended_transfer_size", 2525b5c4e40SEvgeny Pinchuk iolink->rec_transfer_size); 2535b5c4e40SEvgeny Pinchuk ret = sysfs_show_32bit_prop(buffer, "flags", iolink->flags); 2545b5c4e40SEvgeny Pinchuk 2555b5c4e40SEvgeny Pinchuk return ret; 2565b5c4e40SEvgeny Pinchuk } 2575b5c4e40SEvgeny Pinchuk 2585b5c4e40SEvgeny Pinchuk static const struct sysfs_ops iolink_ops = { 2595b5c4e40SEvgeny Pinchuk .show = iolink_show, 2605b5c4e40SEvgeny Pinchuk }; 2615b5c4e40SEvgeny Pinchuk 2625b5c4e40SEvgeny Pinchuk static struct kobj_type iolink_type = { 2635108d768SYong Zhao .release = kfd_topology_kobj_release, 2645b5c4e40SEvgeny Pinchuk .sysfs_ops = &iolink_ops, 2655b5c4e40SEvgeny Pinchuk }; 2665b5c4e40SEvgeny Pinchuk 2675b5c4e40SEvgeny Pinchuk static ssize_t mem_show(struct kobject *kobj, struct attribute *attr, 2685b5c4e40SEvgeny Pinchuk char *buffer) 2695b5c4e40SEvgeny Pinchuk { 2705b5c4e40SEvgeny Pinchuk ssize_t ret; 2715b5c4e40SEvgeny Pinchuk struct kfd_mem_properties *mem; 2725b5c4e40SEvgeny Pinchuk 2735b5c4e40SEvgeny Pinchuk /* Making sure that the buffer is an empty string */ 2745b5c4e40SEvgeny Pinchuk buffer[0] = 0; 2755b5c4e40SEvgeny Pinchuk 2765b5c4e40SEvgeny Pinchuk mem = container_of(attr, struct kfd_mem_properties, attr); 2775b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "heap_type", mem->heap_type); 2785b5c4e40SEvgeny Pinchuk sysfs_show_64bit_prop(buffer, "size_in_bytes", mem->size_in_bytes); 2795b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "flags", mem->flags); 2805b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "width", mem->width); 2815b5c4e40SEvgeny Pinchuk ret = sysfs_show_32bit_prop(buffer, "mem_clk_max", mem->mem_clk_max); 2825b5c4e40SEvgeny Pinchuk 2835b5c4e40SEvgeny Pinchuk return ret; 2845b5c4e40SEvgeny Pinchuk } 2855b5c4e40SEvgeny Pinchuk 2865b5c4e40SEvgeny Pinchuk static const struct sysfs_ops mem_ops = { 2875b5c4e40SEvgeny Pinchuk .show = mem_show, 2885b5c4e40SEvgeny Pinchuk }; 2895b5c4e40SEvgeny Pinchuk 2905b5c4e40SEvgeny Pinchuk static struct kobj_type mem_type = { 2915108d768SYong Zhao .release = kfd_topology_kobj_release, 2925b5c4e40SEvgeny Pinchuk .sysfs_ops = &mem_ops, 2935b5c4e40SEvgeny Pinchuk }; 2945b5c4e40SEvgeny Pinchuk 2955b5c4e40SEvgeny Pinchuk static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr, 2965b5c4e40SEvgeny Pinchuk char *buffer) 2975b5c4e40SEvgeny Pinchuk { 2985b5c4e40SEvgeny Pinchuk ssize_t ret; 299bc0c75a3SHarish Kasiviswanathan uint32_t i, j; 3005b5c4e40SEvgeny Pinchuk struct kfd_cache_properties *cache; 3015b5c4e40SEvgeny Pinchuk 3025b5c4e40SEvgeny Pinchuk /* Making sure that the buffer is an empty string */ 3035b5c4e40SEvgeny Pinchuk buffer[0] = 0; 3045b5c4e40SEvgeny Pinchuk 3055b5c4e40SEvgeny Pinchuk cache = container_of(attr, struct kfd_cache_properties, attr); 3065b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "processor_id_low", 3075b5c4e40SEvgeny Pinchuk cache->processor_id_low); 3085b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "level", cache->cache_level); 3095b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "size", cache->cache_size); 3105b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "cache_line_size", cache->cacheline_size); 3115b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "cache_lines_per_tag", 3125b5c4e40SEvgeny Pinchuk cache->cachelines_per_tag); 3135b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "association", cache->cache_assoc); 3145b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "latency", cache->cache_latency); 3155b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "type", cache->cache_type); 3165b5c4e40SEvgeny Pinchuk snprintf(buffer, PAGE_SIZE, "%ssibling_map ", buffer); 317bc0c75a3SHarish Kasiviswanathan for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++) 318bc0c75a3SHarish Kasiviswanathan for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) { 319bc0c75a3SHarish Kasiviswanathan /* Check each bit */ 320bc0c75a3SHarish Kasiviswanathan if (cache->sibling_map[i] & (1 << j)) 321bc0c75a3SHarish Kasiviswanathan ret = snprintf(buffer, PAGE_SIZE, 322bc0c75a3SHarish Kasiviswanathan "%s%d%s", buffer, 1, ","); 323bc0c75a3SHarish Kasiviswanathan else 324bc0c75a3SHarish Kasiviswanathan ret = snprintf(buffer, PAGE_SIZE, 325bc0c75a3SHarish Kasiviswanathan "%s%d%s", buffer, 0, ","); 326bc0c75a3SHarish Kasiviswanathan } 327bc0c75a3SHarish Kasiviswanathan /* Replace the last "," with end of line */ 328bc0c75a3SHarish Kasiviswanathan *(buffer + strlen(buffer) - 1) = 0xA; 3295b5c4e40SEvgeny Pinchuk return ret; 3305b5c4e40SEvgeny Pinchuk } 3315b5c4e40SEvgeny Pinchuk 3325b5c4e40SEvgeny Pinchuk static const struct sysfs_ops cache_ops = { 3335b5c4e40SEvgeny Pinchuk .show = kfd_cache_show, 3345b5c4e40SEvgeny Pinchuk }; 3355b5c4e40SEvgeny Pinchuk 3365b5c4e40SEvgeny Pinchuk static struct kobj_type cache_type = { 3375108d768SYong Zhao .release = kfd_topology_kobj_release, 3385b5c4e40SEvgeny Pinchuk .sysfs_ops = &cache_ops, 3395b5c4e40SEvgeny Pinchuk }; 3405b5c4e40SEvgeny Pinchuk 341f4757347SAmber Lin /****** Sysfs of Performance Counters ******/ 342f4757347SAmber Lin 343f4757347SAmber Lin struct kfd_perf_attr { 344f4757347SAmber Lin struct kobj_attribute attr; 345f4757347SAmber Lin uint32_t data; 346f4757347SAmber Lin }; 347f4757347SAmber Lin 348f4757347SAmber Lin static ssize_t perf_show(struct kobject *kobj, struct kobj_attribute *attrs, 349f4757347SAmber Lin char *buf) 350f4757347SAmber Lin { 351f4757347SAmber Lin struct kfd_perf_attr *attr; 352f4757347SAmber Lin 353f4757347SAmber Lin buf[0] = 0; 354f4757347SAmber Lin attr = container_of(attrs, struct kfd_perf_attr, attr); 355f4757347SAmber Lin if (!attr->data) /* invalid data for PMC */ 356f4757347SAmber Lin return 0; 357f4757347SAmber Lin else 358f4757347SAmber Lin return sysfs_show_32bit_val(buf, attr->data); 359f4757347SAmber Lin } 360f4757347SAmber Lin 361f4757347SAmber Lin #define KFD_PERF_DESC(_name, _data) \ 362f4757347SAmber Lin { \ 363f4757347SAmber Lin .attr = __ATTR(_name, 0444, perf_show, NULL), \ 364f4757347SAmber Lin .data = _data, \ 365f4757347SAmber Lin } 366f4757347SAmber Lin 367f4757347SAmber Lin static struct kfd_perf_attr perf_attr_iommu[] = { 368f4757347SAmber Lin KFD_PERF_DESC(max_concurrent, 0), 369f4757347SAmber Lin KFD_PERF_DESC(num_counters, 0), 370f4757347SAmber Lin KFD_PERF_DESC(counter_ids, 0), 371f4757347SAmber Lin }; 372f4757347SAmber Lin /****************************************/ 373f4757347SAmber Lin 3745b5c4e40SEvgeny Pinchuk static ssize_t node_show(struct kobject *kobj, struct attribute *attr, 3755b5c4e40SEvgeny Pinchuk char *buffer) 3765b5c4e40SEvgeny Pinchuk { 3775b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 3785b5c4e40SEvgeny Pinchuk char public_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE]; 3795b5c4e40SEvgeny Pinchuk uint32_t i; 380f7c826adSAlexey Skidanov uint32_t log_max_watch_addr; 3815b5c4e40SEvgeny Pinchuk 3825b5c4e40SEvgeny Pinchuk /* Making sure that the buffer is an empty string */ 3835b5c4e40SEvgeny Pinchuk buffer[0] = 0; 3845b5c4e40SEvgeny Pinchuk 3855b5c4e40SEvgeny Pinchuk if (strcmp(attr->name, "gpu_id") == 0) { 3865b5c4e40SEvgeny Pinchuk dev = container_of(attr, struct kfd_topology_device, 3875b5c4e40SEvgeny Pinchuk attr_gpuid); 388f7c826adSAlexey Skidanov return sysfs_show_32bit_val(buffer, dev->gpu_id); 389f7c826adSAlexey Skidanov } 390f7c826adSAlexey Skidanov 391f7c826adSAlexey Skidanov if (strcmp(attr->name, "name") == 0) { 3925b5c4e40SEvgeny Pinchuk dev = container_of(attr, struct kfd_topology_device, 3935b5c4e40SEvgeny Pinchuk attr_name); 3945b5c4e40SEvgeny Pinchuk for (i = 0; i < KFD_TOPOLOGY_PUBLIC_NAME_SIZE; i++) { 3955b5c4e40SEvgeny Pinchuk public_name[i] = 3965b5c4e40SEvgeny Pinchuk (char)dev->node_props.marketing_name[i]; 3975b5c4e40SEvgeny Pinchuk if (dev->node_props.marketing_name[i] == 0) 3985b5c4e40SEvgeny Pinchuk break; 3995b5c4e40SEvgeny Pinchuk } 4005b5c4e40SEvgeny Pinchuk public_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE-1] = 0x0; 401f7c826adSAlexey Skidanov return sysfs_show_str_val(buffer, public_name); 402f7c826adSAlexey Skidanov } 403f7c826adSAlexey Skidanov 4045b5c4e40SEvgeny Pinchuk dev = container_of(attr, struct kfd_topology_device, 4055b5c4e40SEvgeny Pinchuk attr_props); 4065b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "cpu_cores_count", 4075b5c4e40SEvgeny Pinchuk dev->node_props.cpu_cores_count); 4085b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "simd_count", 4095b5c4e40SEvgeny Pinchuk dev->node_props.simd_count); 4105b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "mem_banks_count", 4115b5c4e40SEvgeny Pinchuk dev->node_props.mem_banks_count); 4125b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "caches_count", 4135b5c4e40SEvgeny Pinchuk dev->node_props.caches_count); 4145b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "io_links_count", 4155b5c4e40SEvgeny Pinchuk dev->node_props.io_links_count); 4165b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "cpu_core_id_base", 4175b5c4e40SEvgeny Pinchuk dev->node_props.cpu_core_id_base); 4185b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "simd_id_base", 4195b5c4e40SEvgeny Pinchuk dev->node_props.simd_id_base); 4205b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "max_waves_per_simd", 4215b5c4e40SEvgeny Pinchuk dev->node_props.max_waves_per_simd); 4225b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "lds_size_in_kb", 4235b5c4e40SEvgeny Pinchuk dev->node_props.lds_size_in_kb); 4245b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "gds_size_in_kb", 4255b5c4e40SEvgeny Pinchuk dev->node_props.gds_size_in_kb); 4265b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "wave_front_size", 4275b5c4e40SEvgeny Pinchuk dev->node_props.wave_front_size); 4285b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "array_count", 4295b5c4e40SEvgeny Pinchuk dev->node_props.array_count); 4305b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "simd_arrays_per_engine", 4315b5c4e40SEvgeny Pinchuk dev->node_props.simd_arrays_per_engine); 4325b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "cu_per_simd_array", 4335b5c4e40SEvgeny Pinchuk dev->node_props.cu_per_simd_array); 4345b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "simd_per_cu", 4355b5c4e40SEvgeny Pinchuk dev->node_props.simd_per_cu); 4365b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "max_slots_scratch_cu", 4375b5c4e40SEvgeny Pinchuk dev->node_props.max_slots_scratch_cu); 4385b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "vendor_id", 4395b5c4e40SEvgeny Pinchuk dev->node_props.vendor_id); 4405b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "device_id", 4415b5c4e40SEvgeny Pinchuk dev->node_props.device_id); 4425b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "location_id", 4435b5c4e40SEvgeny Pinchuk dev->node_props.location_id); 4445b5c4e40SEvgeny Pinchuk 4455b5c4e40SEvgeny Pinchuk if (dev->gpu) { 446f7c826adSAlexey Skidanov log_max_watch_addr = 447f7c826adSAlexey Skidanov __ilog2_u32(dev->gpu->device_info->num_of_watch_points); 448f7c826adSAlexey Skidanov 449f7c826adSAlexey Skidanov if (log_max_watch_addr) { 450f7c826adSAlexey Skidanov dev->node_props.capability |= 451f7c826adSAlexey Skidanov HSA_CAP_WATCH_POINTS_SUPPORTED; 452f7c826adSAlexey Skidanov 453f7c826adSAlexey Skidanov dev->node_props.capability |= 454f7c826adSAlexey Skidanov ((log_max_watch_addr << 455f7c826adSAlexey Skidanov HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT) & 456f7c826adSAlexey Skidanov HSA_CAP_WATCH_POINTS_TOTALBITS_MASK); 457f7c826adSAlexey Skidanov } 458f7c826adSAlexey Skidanov 459413e85d5SBen Goz if (dev->gpu->device_info->asic_family == CHIP_TONGA) 460413e85d5SBen Goz dev->node_props.capability |= 461413e85d5SBen Goz HSA_CAP_AQL_QUEUE_DOUBLE_MAP; 462413e85d5SBen Goz 4635b5c4e40SEvgeny Pinchuk sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute", 4643a87177eSHarish Kasiviswanathan dev->node_props.max_engine_clk_fcompute); 46542e08c78SOded Gabbay 4665b5c4e40SEvgeny Pinchuk sysfs_show_64bit_prop(buffer, "local_mem_size", 46742e08c78SOded Gabbay (unsigned long long int) 0); 468f1386fbcSOded Gabbay 469f1386fbcSOded Gabbay sysfs_show_32bit_prop(buffer, "fw_version", 470cea405b1SXihan Zhang dev->gpu->kfd2kgd->get_fw_version( 471f1386fbcSOded Gabbay dev->gpu->kgd, 472f1386fbcSOded Gabbay KGD_ENGINE_MEC1)); 473826f5de8SAlexey Skidanov sysfs_show_32bit_prop(buffer, "capability", 474826f5de8SAlexey Skidanov dev->node_props.capability); 4755b5c4e40SEvgeny Pinchuk } 4765b5c4e40SEvgeny Pinchuk 477f7c826adSAlexey Skidanov return sysfs_show_32bit_prop(buffer, "max_engine_clk_ccompute", 4785b5c4e40SEvgeny Pinchuk cpufreq_quick_get_max(0)/1000); 4795b5c4e40SEvgeny Pinchuk } 4805b5c4e40SEvgeny Pinchuk 4815b5c4e40SEvgeny Pinchuk static const struct sysfs_ops node_ops = { 4825b5c4e40SEvgeny Pinchuk .show = node_show, 4835b5c4e40SEvgeny Pinchuk }; 4845b5c4e40SEvgeny Pinchuk 4855b5c4e40SEvgeny Pinchuk static struct kobj_type node_type = { 4865108d768SYong Zhao .release = kfd_topology_kobj_release, 4875b5c4e40SEvgeny Pinchuk .sysfs_ops = &node_ops, 4885b5c4e40SEvgeny Pinchuk }; 4895b5c4e40SEvgeny Pinchuk 4905b5c4e40SEvgeny Pinchuk static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr) 4915b5c4e40SEvgeny Pinchuk { 4925b5c4e40SEvgeny Pinchuk sysfs_remove_file(kobj, attr); 4935b5c4e40SEvgeny Pinchuk kobject_del(kobj); 4945b5c4e40SEvgeny Pinchuk kobject_put(kobj); 4955b5c4e40SEvgeny Pinchuk } 4965b5c4e40SEvgeny Pinchuk 4975b5c4e40SEvgeny Pinchuk static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev) 4985b5c4e40SEvgeny Pinchuk { 4995b5c4e40SEvgeny Pinchuk struct kfd_iolink_properties *iolink; 5005b5c4e40SEvgeny Pinchuk struct kfd_cache_properties *cache; 5015b5c4e40SEvgeny Pinchuk struct kfd_mem_properties *mem; 502f4757347SAmber Lin struct kfd_perf_properties *perf; 5035b5c4e40SEvgeny Pinchuk 5045b5c4e40SEvgeny Pinchuk if (dev->kobj_iolink) { 5055b5c4e40SEvgeny Pinchuk list_for_each_entry(iolink, &dev->io_link_props, list) 5065b5c4e40SEvgeny Pinchuk if (iolink->kobj) { 5075b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_file(iolink->kobj, 5085b5c4e40SEvgeny Pinchuk &iolink->attr); 50916b9201cSOded Gabbay iolink->kobj = NULL; 5105b5c4e40SEvgeny Pinchuk } 5115b5c4e40SEvgeny Pinchuk kobject_del(dev->kobj_iolink); 5125b5c4e40SEvgeny Pinchuk kobject_put(dev->kobj_iolink); 51316b9201cSOded Gabbay dev->kobj_iolink = NULL; 5145b5c4e40SEvgeny Pinchuk } 5155b5c4e40SEvgeny Pinchuk 5165b5c4e40SEvgeny Pinchuk if (dev->kobj_cache) { 5175b5c4e40SEvgeny Pinchuk list_for_each_entry(cache, &dev->cache_props, list) 5185b5c4e40SEvgeny Pinchuk if (cache->kobj) { 5195b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_file(cache->kobj, 5205b5c4e40SEvgeny Pinchuk &cache->attr); 52116b9201cSOded Gabbay cache->kobj = NULL; 5225b5c4e40SEvgeny Pinchuk } 5235b5c4e40SEvgeny Pinchuk kobject_del(dev->kobj_cache); 5245b5c4e40SEvgeny Pinchuk kobject_put(dev->kobj_cache); 52516b9201cSOded Gabbay dev->kobj_cache = NULL; 5265b5c4e40SEvgeny Pinchuk } 5275b5c4e40SEvgeny Pinchuk 5285b5c4e40SEvgeny Pinchuk if (dev->kobj_mem) { 5295b5c4e40SEvgeny Pinchuk list_for_each_entry(mem, &dev->mem_props, list) 5305b5c4e40SEvgeny Pinchuk if (mem->kobj) { 5315b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_file(mem->kobj, &mem->attr); 53216b9201cSOded Gabbay mem->kobj = NULL; 5335b5c4e40SEvgeny Pinchuk } 5345b5c4e40SEvgeny Pinchuk kobject_del(dev->kobj_mem); 5355b5c4e40SEvgeny Pinchuk kobject_put(dev->kobj_mem); 53616b9201cSOded Gabbay dev->kobj_mem = NULL; 5375b5c4e40SEvgeny Pinchuk } 5385b5c4e40SEvgeny Pinchuk 539f4757347SAmber Lin if (dev->kobj_perf) { 540f4757347SAmber Lin list_for_each_entry(perf, &dev->perf_props, list) { 541f4757347SAmber Lin kfree(perf->attr_group); 542f4757347SAmber Lin perf->attr_group = NULL; 543f4757347SAmber Lin } 544f4757347SAmber Lin kobject_del(dev->kobj_perf); 545f4757347SAmber Lin kobject_put(dev->kobj_perf); 546f4757347SAmber Lin dev->kobj_perf = NULL; 547f4757347SAmber Lin } 548f4757347SAmber Lin 5495b5c4e40SEvgeny Pinchuk if (dev->kobj_node) { 5505b5c4e40SEvgeny Pinchuk sysfs_remove_file(dev->kobj_node, &dev->attr_gpuid); 5515b5c4e40SEvgeny Pinchuk sysfs_remove_file(dev->kobj_node, &dev->attr_name); 5525b5c4e40SEvgeny Pinchuk sysfs_remove_file(dev->kobj_node, &dev->attr_props); 5535b5c4e40SEvgeny Pinchuk kobject_del(dev->kobj_node); 5545b5c4e40SEvgeny Pinchuk kobject_put(dev->kobj_node); 55516b9201cSOded Gabbay dev->kobj_node = NULL; 5565b5c4e40SEvgeny Pinchuk } 5575b5c4e40SEvgeny Pinchuk } 5585b5c4e40SEvgeny Pinchuk 5595b5c4e40SEvgeny Pinchuk static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev, 5605b5c4e40SEvgeny Pinchuk uint32_t id) 5615b5c4e40SEvgeny Pinchuk { 5625b5c4e40SEvgeny Pinchuk struct kfd_iolink_properties *iolink; 5635b5c4e40SEvgeny Pinchuk struct kfd_cache_properties *cache; 5645b5c4e40SEvgeny Pinchuk struct kfd_mem_properties *mem; 565f4757347SAmber Lin struct kfd_perf_properties *perf; 5665b5c4e40SEvgeny Pinchuk int ret; 567f4757347SAmber Lin uint32_t i, num_attrs; 568f4757347SAmber Lin struct attribute **attrs; 5695b5c4e40SEvgeny Pinchuk 57032fa8219SFelix Kuehling if (WARN_ON(dev->kobj_node)) 57132fa8219SFelix Kuehling return -EEXIST; 57232fa8219SFelix Kuehling 5735b5c4e40SEvgeny Pinchuk /* 5745b5c4e40SEvgeny Pinchuk * Creating the sysfs folders 5755b5c4e40SEvgeny Pinchuk */ 5765b5c4e40SEvgeny Pinchuk dev->kobj_node = kfd_alloc_struct(dev->kobj_node); 5775b5c4e40SEvgeny Pinchuk if (!dev->kobj_node) 5785b5c4e40SEvgeny Pinchuk return -ENOMEM; 5795b5c4e40SEvgeny Pinchuk 5805b5c4e40SEvgeny Pinchuk ret = kobject_init_and_add(dev->kobj_node, &node_type, 5815b5c4e40SEvgeny Pinchuk sys_props.kobj_nodes, "%d", id); 5825b5c4e40SEvgeny Pinchuk if (ret < 0) 5835b5c4e40SEvgeny Pinchuk return ret; 5845b5c4e40SEvgeny Pinchuk 5855b5c4e40SEvgeny Pinchuk dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node); 5865b5c4e40SEvgeny Pinchuk if (!dev->kobj_mem) 5875b5c4e40SEvgeny Pinchuk return -ENOMEM; 5885b5c4e40SEvgeny Pinchuk 5895b5c4e40SEvgeny Pinchuk dev->kobj_cache = kobject_create_and_add("caches", dev->kobj_node); 5905b5c4e40SEvgeny Pinchuk if (!dev->kobj_cache) 5915b5c4e40SEvgeny Pinchuk return -ENOMEM; 5925b5c4e40SEvgeny Pinchuk 5935b5c4e40SEvgeny Pinchuk dev->kobj_iolink = kobject_create_and_add("io_links", dev->kobj_node); 5945b5c4e40SEvgeny Pinchuk if (!dev->kobj_iolink) 5955b5c4e40SEvgeny Pinchuk return -ENOMEM; 5965b5c4e40SEvgeny Pinchuk 597f4757347SAmber Lin dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node); 598f4757347SAmber Lin if (!dev->kobj_perf) 599f4757347SAmber Lin return -ENOMEM; 600f4757347SAmber Lin 6015b5c4e40SEvgeny Pinchuk /* 6025b5c4e40SEvgeny Pinchuk * Creating sysfs files for node properties 6035b5c4e40SEvgeny Pinchuk */ 6045b5c4e40SEvgeny Pinchuk dev->attr_gpuid.name = "gpu_id"; 6055b5c4e40SEvgeny Pinchuk dev->attr_gpuid.mode = KFD_SYSFS_FILE_MODE; 6065b5c4e40SEvgeny Pinchuk sysfs_attr_init(&dev->attr_gpuid); 6075b5c4e40SEvgeny Pinchuk dev->attr_name.name = "name"; 6085b5c4e40SEvgeny Pinchuk dev->attr_name.mode = KFD_SYSFS_FILE_MODE; 6095b5c4e40SEvgeny Pinchuk sysfs_attr_init(&dev->attr_name); 6105b5c4e40SEvgeny Pinchuk dev->attr_props.name = "properties"; 6115b5c4e40SEvgeny Pinchuk dev->attr_props.mode = KFD_SYSFS_FILE_MODE; 6125b5c4e40SEvgeny Pinchuk sysfs_attr_init(&dev->attr_props); 6135b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(dev->kobj_node, &dev->attr_gpuid); 6145b5c4e40SEvgeny Pinchuk if (ret < 0) 6155b5c4e40SEvgeny Pinchuk return ret; 6165b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(dev->kobj_node, &dev->attr_name); 6175b5c4e40SEvgeny Pinchuk if (ret < 0) 6185b5c4e40SEvgeny Pinchuk return ret; 6195b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(dev->kobj_node, &dev->attr_props); 6205b5c4e40SEvgeny Pinchuk if (ret < 0) 6215b5c4e40SEvgeny Pinchuk return ret; 6225b5c4e40SEvgeny Pinchuk 6235b5c4e40SEvgeny Pinchuk i = 0; 6245b5c4e40SEvgeny Pinchuk list_for_each_entry(mem, &dev->mem_props, list) { 6255b5c4e40SEvgeny Pinchuk mem->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); 6265b5c4e40SEvgeny Pinchuk if (!mem->kobj) 6275b5c4e40SEvgeny Pinchuk return -ENOMEM; 6285b5c4e40SEvgeny Pinchuk ret = kobject_init_and_add(mem->kobj, &mem_type, 6295b5c4e40SEvgeny Pinchuk dev->kobj_mem, "%d", i); 6305b5c4e40SEvgeny Pinchuk if (ret < 0) 6315b5c4e40SEvgeny Pinchuk return ret; 6325b5c4e40SEvgeny Pinchuk 6335b5c4e40SEvgeny Pinchuk mem->attr.name = "properties"; 6345b5c4e40SEvgeny Pinchuk mem->attr.mode = KFD_SYSFS_FILE_MODE; 6355b5c4e40SEvgeny Pinchuk sysfs_attr_init(&mem->attr); 6365b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(mem->kobj, &mem->attr); 6375b5c4e40SEvgeny Pinchuk if (ret < 0) 6385b5c4e40SEvgeny Pinchuk return ret; 6395b5c4e40SEvgeny Pinchuk i++; 6405b5c4e40SEvgeny Pinchuk } 6415b5c4e40SEvgeny Pinchuk 6425b5c4e40SEvgeny Pinchuk i = 0; 6435b5c4e40SEvgeny Pinchuk list_for_each_entry(cache, &dev->cache_props, list) { 6445b5c4e40SEvgeny Pinchuk cache->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); 6455b5c4e40SEvgeny Pinchuk if (!cache->kobj) 6465b5c4e40SEvgeny Pinchuk return -ENOMEM; 6475b5c4e40SEvgeny Pinchuk ret = kobject_init_and_add(cache->kobj, &cache_type, 6485b5c4e40SEvgeny Pinchuk dev->kobj_cache, "%d", i); 6495b5c4e40SEvgeny Pinchuk if (ret < 0) 6505b5c4e40SEvgeny Pinchuk return ret; 6515b5c4e40SEvgeny Pinchuk 6525b5c4e40SEvgeny Pinchuk cache->attr.name = "properties"; 6535b5c4e40SEvgeny Pinchuk cache->attr.mode = KFD_SYSFS_FILE_MODE; 6545b5c4e40SEvgeny Pinchuk sysfs_attr_init(&cache->attr); 6555b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(cache->kobj, &cache->attr); 6565b5c4e40SEvgeny Pinchuk if (ret < 0) 6575b5c4e40SEvgeny Pinchuk return ret; 6585b5c4e40SEvgeny Pinchuk i++; 6595b5c4e40SEvgeny Pinchuk } 6605b5c4e40SEvgeny Pinchuk 6615b5c4e40SEvgeny Pinchuk i = 0; 6625b5c4e40SEvgeny Pinchuk list_for_each_entry(iolink, &dev->io_link_props, list) { 6635b5c4e40SEvgeny Pinchuk iolink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); 6645b5c4e40SEvgeny Pinchuk if (!iolink->kobj) 6655b5c4e40SEvgeny Pinchuk return -ENOMEM; 6665b5c4e40SEvgeny Pinchuk ret = kobject_init_and_add(iolink->kobj, &iolink_type, 6675b5c4e40SEvgeny Pinchuk dev->kobj_iolink, "%d", i); 6685b5c4e40SEvgeny Pinchuk if (ret < 0) 6695b5c4e40SEvgeny Pinchuk return ret; 6705b5c4e40SEvgeny Pinchuk 6715b5c4e40SEvgeny Pinchuk iolink->attr.name = "properties"; 6725b5c4e40SEvgeny Pinchuk iolink->attr.mode = KFD_SYSFS_FILE_MODE; 6735b5c4e40SEvgeny Pinchuk sysfs_attr_init(&iolink->attr); 6745b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(iolink->kobj, &iolink->attr); 6755b5c4e40SEvgeny Pinchuk if (ret < 0) 6765b5c4e40SEvgeny Pinchuk return ret; 6775b5c4e40SEvgeny Pinchuk i++; 6785b5c4e40SEvgeny Pinchuk } 6795b5c4e40SEvgeny Pinchuk 680f4757347SAmber Lin /* All hardware blocks have the same number of attributes. */ 6813f866f5fSGustavo A. R. Silva num_attrs = ARRAY_SIZE(perf_attr_iommu); 682f4757347SAmber Lin list_for_each_entry(perf, &dev->perf_props, list) { 683f4757347SAmber Lin perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr) 684f4757347SAmber Lin * num_attrs + sizeof(struct attribute_group), 685f4757347SAmber Lin GFP_KERNEL); 686f4757347SAmber Lin if (!perf->attr_group) 687f4757347SAmber Lin return -ENOMEM; 688f4757347SAmber Lin 689f4757347SAmber Lin attrs = (struct attribute **)(perf->attr_group + 1); 690f4757347SAmber Lin if (!strcmp(perf->block_name, "iommu")) { 691f4757347SAmber Lin /* Information of IOMMU's num_counters and counter_ids is shown 692f4757347SAmber Lin * under /sys/bus/event_source/devices/amd_iommu. We don't 693f4757347SAmber Lin * duplicate here. 694f4757347SAmber Lin */ 695f4757347SAmber Lin perf_attr_iommu[0].data = perf->max_concurrent; 696f4757347SAmber Lin for (i = 0; i < num_attrs; i++) 697f4757347SAmber Lin attrs[i] = &perf_attr_iommu[i].attr.attr; 698f4757347SAmber Lin } 699f4757347SAmber Lin perf->attr_group->name = perf->block_name; 700f4757347SAmber Lin perf->attr_group->attrs = attrs; 701f4757347SAmber Lin ret = sysfs_create_group(dev->kobj_perf, perf->attr_group); 702f4757347SAmber Lin if (ret < 0) 703f4757347SAmber Lin return ret; 704f4757347SAmber Lin } 705f4757347SAmber Lin 7065b5c4e40SEvgeny Pinchuk return 0; 7075b5c4e40SEvgeny Pinchuk } 7085b5c4e40SEvgeny Pinchuk 7093a87177eSHarish Kasiviswanathan /* Called with write topology lock acquired */ 7105b5c4e40SEvgeny Pinchuk static int kfd_build_sysfs_node_tree(void) 7115b5c4e40SEvgeny Pinchuk { 7125b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 7135b5c4e40SEvgeny Pinchuk int ret; 7145b5c4e40SEvgeny Pinchuk uint32_t i = 0; 7155b5c4e40SEvgeny Pinchuk 7165b5c4e40SEvgeny Pinchuk list_for_each_entry(dev, &topology_device_list, list) { 7178dfead6cSBen Goz ret = kfd_build_sysfs_node_entry(dev, i); 7185b5c4e40SEvgeny Pinchuk if (ret < 0) 7195b5c4e40SEvgeny Pinchuk return ret; 7205b5c4e40SEvgeny Pinchuk i++; 7215b5c4e40SEvgeny Pinchuk } 7225b5c4e40SEvgeny Pinchuk 7235b5c4e40SEvgeny Pinchuk return 0; 7245b5c4e40SEvgeny Pinchuk } 7255b5c4e40SEvgeny Pinchuk 7263a87177eSHarish Kasiviswanathan /* Called with write topology lock acquired */ 7275b5c4e40SEvgeny Pinchuk static void kfd_remove_sysfs_node_tree(void) 7285b5c4e40SEvgeny Pinchuk { 7295b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 7305b5c4e40SEvgeny Pinchuk 7315b5c4e40SEvgeny Pinchuk list_for_each_entry(dev, &topology_device_list, list) 7325b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_node_entry(dev); 7335b5c4e40SEvgeny Pinchuk } 7345b5c4e40SEvgeny Pinchuk 7355b5c4e40SEvgeny Pinchuk static int kfd_topology_update_sysfs(void) 7365b5c4e40SEvgeny Pinchuk { 7375b5c4e40SEvgeny Pinchuk int ret; 7385b5c4e40SEvgeny Pinchuk 7395b5c4e40SEvgeny Pinchuk pr_info("Creating topology SYSFS entries\n"); 7404eacc26bSKent Russell if (!sys_props.kobj_topology) { 7415b5c4e40SEvgeny Pinchuk sys_props.kobj_topology = 7425b5c4e40SEvgeny Pinchuk kfd_alloc_struct(sys_props.kobj_topology); 7435b5c4e40SEvgeny Pinchuk if (!sys_props.kobj_topology) 7445b5c4e40SEvgeny Pinchuk return -ENOMEM; 7455b5c4e40SEvgeny Pinchuk 7465b5c4e40SEvgeny Pinchuk ret = kobject_init_and_add(sys_props.kobj_topology, 7475b5c4e40SEvgeny Pinchuk &sysprops_type, &kfd_device->kobj, 7485b5c4e40SEvgeny Pinchuk "topology"); 7495b5c4e40SEvgeny Pinchuk if (ret < 0) 7505b5c4e40SEvgeny Pinchuk return ret; 7515b5c4e40SEvgeny Pinchuk 7525b5c4e40SEvgeny Pinchuk sys_props.kobj_nodes = kobject_create_and_add("nodes", 7535b5c4e40SEvgeny Pinchuk sys_props.kobj_topology); 7545b5c4e40SEvgeny Pinchuk if (!sys_props.kobj_nodes) 7555b5c4e40SEvgeny Pinchuk return -ENOMEM; 7565b5c4e40SEvgeny Pinchuk 7575b5c4e40SEvgeny Pinchuk sys_props.attr_genid.name = "generation_id"; 7585b5c4e40SEvgeny Pinchuk sys_props.attr_genid.mode = KFD_SYSFS_FILE_MODE; 7595b5c4e40SEvgeny Pinchuk sysfs_attr_init(&sys_props.attr_genid); 7605b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(sys_props.kobj_topology, 7615b5c4e40SEvgeny Pinchuk &sys_props.attr_genid); 7625b5c4e40SEvgeny Pinchuk if (ret < 0) 7635b5c4e40SEvgeny Pinchuk return ret; 7645b5c4e40SEvgeny Pinchuk 7655b5c4e40SEvgeny Pinchuk sys_props.attr_props.name = "system_properties"; 7665b5c4e40SEvgeny Pinchuk sys_props.attr_props.mode = KFD_SYSFS_FILE_MODE; 7675b5c4e40SEvgeny Pinchuk sysfs_attr_init(&sys_props.attr_props); 7685b5c4e40SEvgeny Pinchuk ret = sysfs_create_file(sys_props.kobj_topology, 7695b5c4e40SEvgeny Pinchuk &sys_props.attr_props); 7705b5c4e40SEvgeny Pinchuk if (ret < 0) 7715b5c4e40SEvgeny Pinchuk return ret; 7725b5c4e40SEvgeny Pinchuk } 7735b5c4e40SEvgeny Pinchuk 7745b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_node_tree(); 7755b5c4e40SEvgeny Pinchuk 7765b5c4e40SEvgeny Pinchuk return kfd_build_sysfs_node_tree(); 7775b5c4e40SEvgeny Pinchuk } 7785b5c4e40SEvgeny Pinchuk 7795b5c4e40SEvgeny Pinchuk static void kfd_topology_release_sysfs(void) 7805b5c4e40SEvgeny Pinchuk { 7815b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_node_tree(); 7825b5c4e40SEvgeny Pinchuk if (sys_props.kobj_topology) { 7835b5c4e40SEvgeny Pinchuk sysfs_remove_file(sys_props.kobj_topology, 7845b5c4e40SEvgeny Pinchuk &sys_props.attr_genid); 7855b5c4e40SEvgeny Pinchuk sysfs_remove_file(sys_props.kobj_topology, 7865b5c4e40SEvgeny Pinchuk &sys_props.attr_props); 7875b5c4e40SEvgeny Pinchuk if (sys_props.kobj_nodes) { 7885b5c4e40SEvgeny Pinchuk kobject_del(sys_props.kobj_nodes); 7895b5c4e40SEvgeny Pinchuk kobject_put(sys_props.kobj_nodes); 79016b9201cSOded Gabbay sys_props.kobj_nodes = NULL; 7915b5c4e40SEvgeny Pinchuk } 7925b5c4e40SEvgeny Pinchuk kobject_del(sys_props.kobj_topology); 7935b5c4e40SEvgeny Pinchuk kobject_put(sys_props.kobj_topology); 79416b9201cSOded Gabbay sys_props.kobj_topology = NULL; 7955b5c4e40SEvgeny Pinchuk } 7965b5c4e40SEvgeny Pinchuk } 7975b5c4e40SEvgeny Pinchuk 7984f449311SHarish Kasiviswanathan /* Called with write topology_lock acquired */ 7994f449311SHarish Kasiviswanathan static void kfd_topology_update_device_list(struct list_head *temp_list, 8004f449311SHarish Kasiviswanathan struct list_head *master_list) 8014f449311SHarish Kasiviswanathan { 8024f449311SHarish Kasiviswanathan while (!list_empty(temp_list)) { 8034f449311SHarish Kasiviswanathan list_move_tail(temp_list->next, master_list); 8044f449311SHarish Kasiviswanathan sys_props.num_devices++; 8054f449311SHarish Kasiviswanathan } 8064f449311SHarish Kasiviswanathan } 8074f449311SHarish Kasiviswanathan 808520b8fb7SFelix Kuehling static void kfd_debug_print_topology(void) 809520b8fb7SFelix Kuehling { 810520b8fb7SFelix Kuehling struct kfd_topology_device *dev; 811520b8fb7SFelix Kuehling 812520b8fb7SFelix Kuehling down_read(&topology_lock); 813520b8fb7SFelix Kuehling 814520b8fb7SFelix Kuehling dev = list_last_entry(&topology_device_list, 815520b8fb7SFelix Kuehling struct kfd_topology_device, list); 816520b8fb7SFelix Kuehling if (dev) { 817520b8fb7SFelix Kuehling if (dev->node_props.cpu_cores_count && 818520b8fb7SFelix Kuehling dev->node_props.simd_count) { 819520b8fb7SFelix Kuehling pr_info("Topology: Add APU node [0x%0x:0x%0x]\n", 820520b8fb7SFelix Kuehling dev->node_props.device_id, 821520b8fb7SFelix Kuehling dev->node_props.vendor_id); 822520b8fb7SFelix Kuehling } else if (dev->node_props.cpu_cores_count) 823520b8fb7SFelix Kuehling pr_info("Topology: Add CPU node\n"); 824520b8fb7SFelix Kuehling else if (dev->node_props.simd_count) 825520b8fb7SFelix Kuehling pr_info("Topology: Add dGPU node [0x%0x:0x%0x]\n", 826520b8fb7SFelix Kuehling dev->node_props.device_id, 827520b8fb7SFelix Kuehling dev->node_props.vendor_id); 828520b8fb7SFelix Kuehling } 829520b8fb7SFelix Kuehling up_read(&topology_lock); 830520b8fb7SFelix Kuehling } 831520b8fb7SFelix Kuehling 832520b8fb7SFelix Kuehling /* Helper function for intializing platform_xx members of 833520b8fb7SFelix Kuehling * kfd_system_properties. Uses OEM info from the last CPU/APU node. 834520b8fb7SFelix Kuehling */ 835520b8fb7SFelix Kuehling static void kfd_update_system_properties(void) 836520b8fb7SFelix Kuehling { 837520b8fb7SFelix Kuehling struct kfd_topology_device *dev; 838520b8fb7SFelix Kuehling 839520b8fb7SFelix Kuehling down_read(&topology_lock); 840520b8fb7SFelix Kuehling dev = list_last_entry(&topology_device_list, 841520b8fb7SFelix Kuehling struct kfd_topology_device, list); 842520b8fb7SFelix Kuehling if (dev) { 843520b8fb7SFelix Kuehling sys_props.platform_id = 844520b8fb7SFelix Kuehling (*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK; 845520b8fb7SFelix Kuehling sys_props.platform_oem = *((uint64_t *)dev->oem_table_id); 846520b8fb7SFelix Kuehling sys_props.platform_rev = dev->oem_revision; 847520b8fb7SFelix Kuehling } 848520b8fb7SFelix Kuehling up_read(&topology_lock); 849520b8fb7SFelix Kuehling } 850520b8fb7SFelix Kuehling 851520b8fb7SFelix Kuehling static void find_system_memory(const struct dmi_header *dm, 852520b8fb7SFelix Kuehling void *private) 853520b8fb7SFelix Kuehling { 854520b8fb7SFelix Kuehling struct kfd_mem_properties *mem; 855520b8fb7SFelix Kuehling u16 mem_width, mem_clock; 856520b8fb7SFelix Kuehling struct kfd_topology_device *kdev = 857520b8fb7SFelix Kuehling (struct kfd_topology_device *)private; 858520b8fb7SFelix Kuehling const u8 *dmi_data = (const u8 *)(dm + 1); 859520b8fb7SFelix Kuehling 860520b8fb7SFelix Kuehling if (dm->type == DMI_ENTRY_MEM_DEVICE && dm->length >= 0x15) { 861520b8fb7SFelix Kuehling mem_width = (u16)(*(const u16 *)(dmi_data + 0x6)); 862520b8fb7SFelix Kuehling mem_clock = (u16)(*(const u16 *)(dmi_data + 0x11)); 863520b8fb7SFelix Kuehling list_for_each_entry(mem, &kdev->mem_props, list) { 864520b8fb7SFelix Kuehling if (mem_width != 0xFFFF && mem_width != 0) 865520b8fb7SFelix Kuehling mem->width = mem_width; 866520b8fb7SFelix Kuehling if (mem_clock != 0) 867520b8fb7SFelix Kuehling mem->mem_clk_max = mem_clock; 868520b8fb7SFelix Kuehling } 869520b8fb7SFelix Kuehling } 870520b8fb7SFelix Kuehling } 871f4757347SAmber Lin 872f4757347SAmber Lin /* 873f4757347SAmber Lin * Performance counters information is not part of CRAT but we would like to 874f4757347SAmber Lin * put them in the sysfs under topology directory for Thunk to get the data. 875f4757347SAmber Lin * This function is called before updating the sysfs. 876f4757347SAmber Lin */ 877f4757347SAmber Lin static int kfd_add_perf_to_topology(struct kfd_topology_device *kdev) 878f4757347SAmber Lin { 87964d1c3a4SFelix Kuehling /* These are the only counters supported so far */ 88064d1c3a4SFelix Kuehling return kfd_iommu_add_perf_counters(kdev); 881f4757347SAmber Lin } 882f4757347SAmber Lin 883520b8fb7SFelix Kuehling /* kfd_add_non_crat_information - Add information that is not currently 884520b8fb7SFelix Kuehling * defined in CRAT but is necessary for KFD topology 885520b8fb7SFelix Kuehling * @dev - topology device to which addition info is added 886520b8fb7SFelix Kuehling */ 887520b8fb7SFelix Kuehling static void kfd_add_non_crat_information(struct kfd_topology_device *kdev) 888520b8fb7SFelix Kuehling { 889520b8fb7SFelix Kuehling /* Check if CPU only node. */ 890520b8fb7SFelix Kuehling if (!kdev->gpu) { 891520b8fb7SFelix Kuehling /* Add system memory information */ 892520b8fb7SFelix Kuehling dmi_walk(find_system_memory, kdev); 893520b8fb7SFelix Kuehling } 894520b8fb7SFelix Kuehling /* TODO: For GPU node, rearrange code from kfd_topology_add_device */ 895520b8fb7SFelix Kuehling } 896520b8fb7SFelix Kuehling 897b441093eSHarish Kasiviswanathan /* kfd_is_acpi_crat_invalid - CRAT from ACPI is valid only for AMD APU devices. 898b441093eSHarish Kasiviswanathan * Ignore CRAT for all other devices. AMD APU is identified if both CPU 899b441093eSHarish Kasiviswanathan * and GPU cores are present. 900b441093eSHarish Kasiviswanathan * @device_list - topology device list created by parsing ACPI CRAT table. 901b441093eSHarish Kasiviswanathan * @return - TRUE if invalid, FALSE is valid. 902b441093eSHarish Kasiviswanathan */ 903b441093eSHarish Kasiviswanathan static bool kfd_is_acpi_crat_invalid(struct list_head *device_list) 904b441093eSHarish Kasiviswanathan { 905b441093eSHarish Kasiviswanathan struct kfd_topology_device *dev; 906b441093eSHarish Kasiviswanathan 907b441093eSHarish Kasiviswanathan list_for_each_entry(dev, device_list, list) { 908b441093eSHarish Kasiviswanathan if (dev->node_props.cpu_cores_count && 909b441093eSHarish Kasiviswanathan dev->node_props.simd_count) 910b441093eSHarish Kasiviswanathan return false; 911b441093eSHarish Kasiviswanathan } 912b441093eSHarish Kasiviswanathan pr_info("Ignoring ACPI CRAT on non-APU system\n"); 913b441093eSHarish Kasiviswanathan return true; 914b441093eSHarish Kasiviswanathan } 915b441093eSHarish Kasiviswanathan 9165b5c4e40SEvgeny Pinchuk int kfd_topology_init(void) 9175b5c4e40SEvgeny Pinchuk { 91816b9201cSOded Gabbay void *crat_image = NULL; 9195b5c4e40SEvgeny Pinchuk size_t image_size = 0; 9205b5c4e40SEvgeny Pinchuk int ret; 9214f449311SHarish Kasiviswanathan struct list_head temp_topology_device_list; 922520b8fb7SFelix Kuehling int cpu_only_node = 0; 923520b8fb7SFelix Kuehling struct kfd_topology_device *kdev; 924520b8fb7SFelix Kuehling int proximity_domain; 9255b5c4e40SEvgeny Pinchuk 9264f449311SHarish Kasiviswanathan /* topology_device_list - Master list of all topology devices 9274f449311SHarish Kasiviswanathan * temp_topology_device_list - temporary list created while parsing CRAT 9284f449311SHarish Kasiviswanathan * or VCRAT. Once parsing is complete the contents of list is moved to 9294f449311SHarish Kasiviswanathan * topology_device_list 9305b5c4e40SEvgeny Pinchuk */ 9314f449311SHarish Kasiviswanathan 9324f449311SHarish Kasiviswanathan /* Initialize the head for the both the lists */ 9335b5c4e40SEvgeny Pinchuk INIT_LIST_HEAD(&topology_device_list); 9344f449311SHarish Kasiviswanathan INIT_LIST_HEAD(&temp_topology_device_list); 9355b5c4e40SEvgeny Pinchuk init_rwsem(&topology_lock); 9365b5c4e40SEvgeny Pinchuk 9375b5c4e40SEvgeny Pinchuk memset(&sys_props, 0, sizeof(sys_props)); 9385b5c4e40SEvgeny Pinchuk 939520b8fb7SFelix Kuehling /* Proximity domains in ACPI CRAT tables start counting at 940520b8fb7SFelix Kuehling * 0. The same should be true for virtual CRAT tables created 941520b8fb7SFelix Kuehling * at this stage. GPUs added later in kfd_topology_add_device 942520b8fb7SFelix Kuehling * use a counter. 943520b8fb7SFelix Kuehling */ 944520b8fb7SFelix Kuehling proximity_domain = 0; 945520b8fb7SFelix Kuehling 9465b5c4e40SEvgeny Pinchuk /* 947520b8fb7SFelix Kuehling * Get the CRAT image from the ACPI. If ACPI doesn't have one 948b441093eSHarish Kasiviswanathan * or if ACPI CRAT is invalid create a virtual CRAT. 949520b8fb7SFelix Kuehling * NOTE: The current implementation expects all AMD APUs to have 950520b8fb7SFelix Kuehling * CRAT. If no CRAT is available, it is assumed to be a CPU 9515b5c4e40SEvgeny Pinchuk */ 9528e05247dSHarish Kasiviswanathan ret = kfd_create_crat_image_acpi(&crat_image, &image_size); 9538e05247dSHarish Kasiviswanathan if (!ret) { 9544f449311SHarish Kasiviswanathan ret = kfd_parse_crat_table(crat_image, 955520b8fb7SFelix Kuehling &temp_topology_device_list, 956520b8fb7SFelix Kuehling proximity_domain); 957b441093eSHarish Kasiviswanathan if (ret || 958b441093eSHarish Kasiviswanathan kfd_is_acpi_crat_invalid(&temp_topology_device_list)) { 959520b8fb7SFelix Kuehling kfd_release_topology_device_list( 960520b8fb7SFelix Kuehling &temp_topology_device_list); 961520b8fb7SFelix Kuehling kfd_destroy_crat_image(crat_image); 962520b8fb7SFelix Kuehling crat_image = NULL; 963520b8fb7SFelix Kuehling } 964520b8fb7SFelix Kuehling } 965520b8fb7SFelix Kuehling 966520b8fb7SFelix Kuehling if (!crat_image) { 967520b8fb7SFelix Kuehling ret = kfd_create_crat_image_virtual(&crat_image, &image_size, 968520b8fb7SFelix Kuehling COMPUTE_UNIT_CPU, NULL, 969520b8fb7SFelix Kuehling proximity_domain); 970520b8fb7SFelix Kuehling cpu_only_node = 1; 971520b8fb7SFelix Kuehling if (ret) { 972520b8fb7SFelix Kuehling pr_err("Error creating VCRAT table for CPU\n"); 973520b8fb7SFelix Kuehling return ret; 974520b8fb7SFelix Kuehling } 975520b8fb7SFelix Kuehling 976520b8fb7SFelix Kuehling ret = kfd_parse_crat_table(crat_image, 977520b8fb7SFelix Kuehling &temp_topology_device_list, 978520b8fb7SFelix Kuehling proximity_domain); 979520b8fb7SFelix Kuehling if (ret) { 980520b8fb7SFelix Kuehling pr_err("Error parsing VCRAT table for CPU\n"); 9818e05247dSHarish Kasiviswanathan goto err; 982520b8fb7SFelix Kuehling } 9835b5c4e40SEvgeny Pinchuk } 9845b5c4e40SEvgeny Pinchuk 985f4757347SAmber Lin kdev = list_first_entry(&temp_topology_device_list, 986f4757347SAmber Lin struct kfd_topology_device, list); 987f4757347SAmber Lin kfd_add_perf_to_topology(kdev); 988f4757347SAmber Lin 9895b5c4e40SEvgeny Pinchuk down_write(&topology_lock); 9904f449311SHarish Kasiviswanathan kfd_topology_update_device_list(&temp_topology_device_list, 9914f449311SHarish Kasiviswanathan &topology_device_list); 992520b8fb7SFelix Kuehling atomic_set(&topology_crat_proximity_domain, sys_props.num_devices-1); 9935b5c4e40SEvgeny Pinchuk ret = kfd_topology_update_sysfs(); 9945b5c4e40SEvgeny Pinchuk up_write(&topology_lock); 9958e05247dSHarish Kasiviswanathan 9964f449311SHarish Kasiviswanathan if (!ret) { 9974f449311SHarish Kasiviswanathan sys_props.generation_count++; 998520b8fb7SFelix Kuehling kfd_update_system_properties(); 999520b8fb7SFelix Kuehling kfd_debug_print_topology(); 10008e05247dSHarish Kasiviswanathan pr_info("Finished initializing topology\n"); 10014f449311SHarish Kasiviswanathan } else 10028e05247dSHarish Kasiviswanathan pr_err("Failed to update topology in sysfs ret=%d\n", ret); 10035b5c4e40SEvgeny Pinchuk 1004520b8fb7SFelix Kuehling /* For nodes with GPU, this information gets added 1005520b8fb7SFelix Kuehling * when GPU is detected (kfd_topology_add_device). 1006520b8fb7SFelix Kuehling */ 1007520b8fb7SFelix Kuehling if (cpu_only_node) { 1008520b8fb7SFelix Kuehling /* Add additional information to CPU only node created above */ 1009520b8fb7SFelix Kuehling down_write(&topology_lock); 1010520b8fb7SFelix Kuehling kdev = list_first_entry(&topology_device_list, 1011520b8fb7SFelix Kuehling struct kfd_topology_device, list); 1012520b8fb7SFelix Kuehling up_write(&topology_lock); 1013520b8fb7SFelix Kuehling kfd_add_non_crat_information(kdev); 1014520b8fb7SFelix Kuehling } 1015520b8fb7SFelix Kuehling 10165b5c4e40SEvgeny Pinchuk err: 10178e05247dSHarish Kasiviswanathan kfd_destroy_crat_image(crat_image); 10185b5c4e40SEvgeny Pinchuk return ret; 10195b5c4e40SEvgeny Pinchuk } 10205b5c4e40SEvgeny Pinchuk 10215b5c4e40SEvgeny Pinchuk void kfd_topology_shutdown(void) 10225b5c4e40SEvgeny Pinchuk { 10234f449311SHarish Kasiviswanathan down_write(&topology_lock); 10245b5c4e40SEvgeny Pinchuk kfd_topology_release_sysfs(); 10255b5c4e40SEvgeny Pinchuk kfd_release_live_view(); 10264f449311SHarish Kasiviswanathan up_write(&topology_lock); 10275b5c4e40SEvgeny Pinchuk } 10285b5c4e40SEvgeny Pinchuk 10295b5c4e40SEvgeny Pinchuk static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu) 10305b5c4e40SEvgeny Pinchuk { 10315b5c4e40SEvgeny Pinchuk uint32_t hashout; 10325b5c4e40SEvgeny Pinchuk uint32_t buf[7]; 1033585f0e6cSEdward O'Callaghan uint64_t local_mem_size; 10345b5c4e40SEvgeny Pinchuk int i; 10350504cccfSHarish Kasiviswanathan struct kfd_local_mem_info local_mem_info; 10365b5c4e40SEvgeny Pinchuk 10375b5c4e40SEvgeny Pinchuk if (!gpu) 10385b5c4e40SEvgeny Pinchuk return 0; 10395b5c4e40SEvgeny Pinchuk 10400504cccfSHarish Kasiviswanathan gpu->kfd2kgd->get_local_mem_info(gpu->kgd, &local_mem_info); 10410504cccfSHarish Kasiviswanathan 10420504cccfSHarish Kasiviswanathan local_mem_size = local_mem_info.local_mem_size_private + 10430504cccfSHarish Kasiviswanathan local_mem_info.local_mem_size_public; 1044585f0e6cSEdward O'Callaghan 10455b5c4e40SEvgeny Pinchuk buf[0] = gpu->pdev->devfn; 10465b5c4e40SEvgeny Pinchuk buf[1] = gpu->pdev->subsystem_vendor; 10475b5c4e40SEvgeny Pinchuk buf[2] = gpu->pdev->subsystem_device; 10485b5c4e40SEvgeny Pinchuk buf[3] = gpu->pdev->device; 10495b5c4e40SEvgeny Pinchuk buf[4] = gpu->pdev->bus->number; 1050585f0e6cSEdward O'Callaghan buf[5] = lower_32_bits(local_mem_size); 1051585f0e6cSEdward O'Callaghan buf[6] = upper_32_bits(local_mem_size); 10525b5c4e40SEvgeny Pinchuk 10535b5c4e40SEvgeny Pinchuk for (i = 0, hashout = 0; i < 7; i++) 10545b5c4e40SEvgeny Pinchuk hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH); 10555b5c4e40SEvgeny Pinchuk 10565b5c4e40SEvgeny Pinchuk return hashout; 10575b5c4e40SEvgeny Pinchuk } 10583a87177eSHarish Kasiviswanathan /* kfd_assign_gpu - Attach @gpu to the correct kfd topology device. If 10593a87177eSHarish Kasiviswanathan * the GPU device is not already present in the topology device 10603a87177eSHarish Kasiviswanathan * list then return NULL. This means a new topology device has to 10613a87177eSHarish Kasiviswanathan * be created for this GPU. 10623a87177eSHarish Kasiviswanathan * TODO: Rather than assiging @gpu to first topology device withtout 10633a87177eSHarish Kasiviswanathan * gpu attached, it will better to have more stringent check. 10643a87177eSHarish Kasiviswanathan */ 10655b5c4e40SEvgeny Pinchuk static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu) 10665b5c4e40SEvgeny Pinchuk { 10675b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 106816b9201cSOded Gabbay struct kfd_topology_device *out_dev = NULL; 10695b5c4e40SEvgeny Pinchuk 10703a87177eSHarish Kasiviswanathan down_write(&topology_lock); 10715b5c4e40SEvgeny Pinchuk list_for_each_entry(dev, &topology_device_list, list) 10724eacc26bSKent Russell if (!dev->gpu && (dev->node_props.simd_count > 0)) { 10735b5c4e40SEvgeny Pinchuk dev->gpu = gpu; 10745b5c4e40SEvgeny Pinchuk out_dev = dev; 10755b5c4e40SEvgeny Pinchuk break; 10765b5c4e40SEvgeny Pinchuk } 10773a87177eSHarish Kasiviswanathan up_write(&topology_lock); 10785b5c4e40SEvgeny Pinchuk return out_dev; 10795b5c4e40SEvgeny Pinchuk } 10805b5c4e40SEvgeny Pinchuk 10815b5c4e40SEvgeny Pinchuk static void kfd_notify_gpu_change(uint32_t gpu_id, int arrival) 10825b5c4e40SEvgeny Pinchuk { 10835b5c4e40SEvgeny Pinchuk /* 10845b5c4e40SEvgeny Pinchuk * TODO: Generate an event for thunk about the arrival/removal 10855b5c4e40SEvgeny Pinchuk * of the GPU 10865b5c4e40SEvgeny Pinchuk */ 10875b5c4e40SEvgeny Pinchuk } 10885b5c4e40SEvgeny Pinchuk 10893a87177eSHarish Kasiviswanathan /* kfd_fill_mem_clk_max_info - Since CRAT doesn't have memory clock info, 10903a87177eSHarish Kasiviswanathan * patch this after CRAT parsing. 10913a87177eSHarish Kasiviswanathan */ 10923a87177eSHarish Kasiviswanathan static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev) 10933a87177eSHarish Kasiviswanathan { 10943a87177eSHarish Kasiviswanathan struct kfd_mem_properties *mem; 10953a87177eSHarish Kasiviswanathan struct kfd_local_mem_info local_mem_info; 10963a87177eSHarish Kasiviswanathan 10973a87177eSHarish Kasiviswanathan if (!dev) 10983a87177eSHarish Kasiviswanathan return; 10993a87177eSHarish Kasiviswanathan 11003a87177eSHarish Kasiviswanathan /* Currently, amdgpu driver (amdgpu_mc) deals only with GPUs with 11013a87177eSHarish Kasiviswanathan * single bank of VRAM local memory. 11023a87177eSHarish Kasiviswanathan * for dGPUs - VCRAT reports only one bank of Local Memory 11033a87177eSHarish Kasiviswanathan * for APUs - If CRAT from ACPI reports more than one bank, then 11043a87177eSHarish Kasiviswanathan * all the banks will report the same mem_clk_max information 11053a87177eSHarish Kasiviswanathan */ 11063a87177eSHarish Kasiviswanathan dev->gpu->kfd2kgd->get_local_mem_info(dev->gpu->kgd, 11073a87177eSHarish Kasiviswanathan &local_mem_info); 11083a87177eSHarish Kasiviswanathan 11093a87177eSHarish Kasiviswanathan list_for_each_entry(mem, &dev->mem_props, list) 11103a87177eSHarish Kasiviswanathan mem->mem_clk_max = local_mem_info.mem_clk_max; 11113a87177eSHarish Kasiviswanathan } 11123a87177eSHarish Kasiviswanathan 11133a87177eSHarish Kasiviswanathan static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev) 11143a87177eSHarish Kasiviswanathan { 11153a87177eSHarish Kasiviswanathan struct kfd_iolink_properties *link; 11163a87177eSHarish Kasiviswanathan 11173a87177eSHarish Kasiviswanathan if (!dev || !dev->gpu) 11183a87177eSHarish Kasiviswanathan return; 11193a87177eSHarish Kasiviswanathan 11203a87177eSHarish Kasiviswanathan /* GPU only creates direck links so apply flags setting to all */ 11213a87177eSHarish Kasiviswanathan if (dev->gpu->device_info->asic_family == CHIP_HAWAII) 11223a87177eSHarish Kasiviswanathan list_for_each_entry(link, &dev->io_link_props, list) 11233a87177eSHarish Kasiviswanathan link->flags = CRAT_IOLINK_FLAGS_ENABLED | 11243a87177eSHarish Kasiviswanathan CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT | 11253a87177eSHarish Kasiviswanathan CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT; 11263a87177eSHarish Kasiviswanathan } 11273a87177eSHarish Kasiviswanathan 11285b5c4e40SEvgeny Pinchuk int kfd_topology_add_device(struct kfd_dev *gpu) 11295b5c4e40SEvgeny Pinchuk { 11305b5c4e40SEvgeny Pinchuk uint32_t gpu_id; 11315b5c4e40SEvgeny Pinchuk struct kfd_topology_device *dev; 1132f7ce2fadSFlora Cui struct kfd_cu_info cu_info; 11334f449311SHarish Kasiviswanathan int res = 0; 11344f449311SHarish Kasiviswanathan struct list_head temp_topology_device_list; 11353a87177eSHarish Kasiviswanathan void *crat_image = NULL; 11363a87177eSHarish Kasiviswanathan size_t image_size = 0; 11373a87177eSHarish Kasiviswanathan int proximity_domain; 11384f449311SHarish Kasiviswanathan 11394f449311SHarish Kasiviswanathan INIT_LIST_HEAD(&temp_topology_device_list); 11405b5c4e40SEvgeny Pinchuk 11415b5c4e40SEvgeny Pinchuk gpu_id = kfd_generate_gpu_id(gpu); 11425b5c4e40SEvgeny Pinchuk 114379775b62SKent Russell pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id); 11445b5c4e40SEvgeny Pinchuk 11453a87177eSHarish Kasiviswanathan proximity_domain = atomic_inc_return(&topology_crat_proximity_domain); 11463a87177eSHarish Kasiviswanathan 11473a87177eSHarish Kasiviswanathan /* Check to see if this gpu device exists in the topology_device_list. 11483a87177eSHarish Kasiviswanathan * If so, assign the gpu to that device, 11493a87177eSHarish Kasiviswanathan * else create a Virtual CRAT for this gpu device and then parse that 11503a87177eSHarish Kasiviswanathan * CRAT to create a new topology device. Once created assign the gpu to 11513a87177eSHarish Kasiviswanathan * that topology device 11525b5c4e40SEvgeny Pinchuk */ 11535b5c4e40SEvgeny Pinchuk dev = kfd_assign_gpu(gpu); 11545b5c4e40SEvgeny Pinchuk if (!dev) { 11553a87177eSHarish Kasiviswanathan res = kfd_create_crat_image_virtual(&crat_image, &image_size, 11563a87177eSHarish Kasiviswanathan COMPUTE_UNIT_GPU, gpu, 11573a87177eSHarish Kasiviswanathan proximity_domain); 11583a87177eSHarish Kasiviswanathan if (res) { 11593a87177eSHarish Kasiviswanathan pr_err("Error creating VCRAT for GPU (ID: 0x%x)\n", 11603a87177eSHarish Kasiviswanathan gpu_id); 11613a87177eSHarish Kasiviswanathan return res; 11623a87177eSHarish Kasiviswanathan } 11633a87177eSHarish Kasiviswanathan res = kfd_parse_crat_table(crat_image, 11643a87177eSHarish Kasiviswanathan &temp_topology_device_list, 11653a87177eSHarish Kasiviswanathan proximity_domain); 11663a87177eSHarish Kasiviswanathan if (res) { 11673a87177eSHarish Kasiviswanathan pr_err("Error parsing VCRAT for GPU (ID: 0x%x)\n", 11683a87177eSHarish Kasiviswanathan gpu_id); 11695b5c4e40SEvgeny Pinchuk goto err; 11705b5c4e40SEvgeny Pinchuk } 11714f449311SHarish Kasiviswanathan 11724f449311SHarish Kasiviswanathan down_write(&topology_lock); 11734f449311SHarish Kasiviswanathan kfd_topology_update_device_list(&temp_topology_device_list, 11744f449311SHarish Kasiviswanathan &topology_device_list); 11754f449311SHarish Kasiviswanathan 11768eabaf54SKent Russell /* Update the SYSFS tree, since we added another topology 11778eabaf54SKent Russell * device 11785b5c4e40SEvgeny Pinchuk */ 11793a87177eSHarish Kasiviswanathan res = kfd_topology_update_sysfs(); 11804f449311SHarish Kasiviswanathan up_write(&topology_lock); 11814f449311SHarish Kasiviswanathan 11823a87177eSHarish Kasiviswanathan if (!res) 11833a87177eSHarish Kasiviswanathan sys_props.generation_count++; 11843a87177eSHarish Kasiviswanathan else 11853a87177eSHarish Kasiviswanathan pr_err("Failed to update GPU (ID: 0x%x) to sysfs topology. res=%d\n", 11863a87177eSHarish Kasiviswanathan gpu_id, res); 11873a87177eSHarish Kasiviswanathan dev = kfd_assign_gpu(gpu); 11883a87177eSHarish Kasiviswanathan if (WARN_ON(!dev)) { 11893a87177eSHarish Kasiviswanathan res = -ENODEV; 11903a87177eSHarish Kasiviswanathan goto err; 11913a87177eSHarish Kasiviswanathan } 11925b5c4e40SEvgeny Pinchuk } 11935b5c4e40SEvgeny Pinchuk 11945b5c4e40SEvgeny Pinchuk dev->gpu_id = gpu_id; 11955b5c4e40SEvgeny Pinchuk gpu->id = gpu_id; 11963a87177eSHarish Kasiviswanathan 11973a87177eSHarish Kasiviswanathan /* TODO: Move the following lines to function 11983a87177eSHarish Kasiviswanathan * kfd_add_non_crat_information 11993a87177eSHarish Kasiviswanathan */ 12003a87177eSHarish Kasiviswanathan 12013a87177eSHarish Kasiviswanathan /* Fill-in additional information that is not available in CRAT but 12023a87177eSHarish Kasiviswanathan * needed for the topology 12033a87177eSHarish Kasiviswanathan */ 12043a87177eSHarish Kasiviswanathan 1205f7ce2fadSFlora Cui dev->gpu->kfd2kgd->get_cu_info(dev->gpu->kgd, &cu_info); 12063a87177eSHarish Kasiviswanathan dev->node_props.simd_arrays_per_engine = 12073a87177eSHarish Kasiviswanathan cu_info.num_shader_arrays_per_engine; 12083a87177eSHarish Kasiviswanathan 12095b5c4e40SEvgeny Pinchuk dev->node_props.vendor_id = gpu->pdev->vendor; 12105b5c4e40SEvgeny Pinchuk dev->node_props.device_id = gpu->pdev->device; 1211d63f0ba2SHarish Kasiviswanathan dev->node_props.location_id = PCI_DEVID(gpu->pdev->bus->number, 1212d63f0ba2SHarish Kasiviswanathan gpu->pdev->devfn); 12133a87177eSHarish Kasiviswanathan dev->node_props.max_engine_clk_fcompute = 12143a87177eSHarish Kasiviswanathan dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz(dev->gpu->kgd); 12153a87177eSHarish Kasiviswanathan dev->node_props.max_engine_clk_ccompute = 12163a87177eSHarish Kasiviswanathan cpufreq_quick_get_max(0) / 1000; 12175b5c4e40SEvgeny Pinchuk 12183a87177eSHarish Kasiviswanathan kfd_fill_mem_clk_max_info(dev); 12193a87177eSHarish Kasiviswanathan kfd_fill_iolink_non_crat_info(dev); 12203a87177eSHarish Kasiviswanathan 12213a87177eSHarish Kasiviswanathan switch (dev->gpu->device_info->asic_family) { 12223a87177eSHarish Kasiviswanathan case CHIP_KAVERI: 12233a87177eSHarish Kasiviswanathan case CHIP_HAWAII: 12243a87177eSHarish Kasiviswanathan case CHIP_TONGA: 12253a87177eSHarish Kasiviswanathan dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_PRE_1_0 << 12263a87177eSHarish Kasiviswanathan HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & 12273a87177eSHarish Kasiviswanathan HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); 12283a87177eSHarish Kasiviswanathan break; 12293a87177eSHarish Kasiviswanathan case CHIP_CARRIZO: 12303a87177eSHarish Kasiviswanathan case CHIP_FIJI: 12313a87177eSHarish Kasiviswanathan case CHIP_POLARIS10: 12323a87177eSHarish Kasiviswanathan case CHIP_POLARIS11: 123342aa8793SFelix Kuehling pr_debug("Adding doorbell packet type capability\n"); 12343a87177eSHarish Kasiviswanathan dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_1_0 << 12353a87177eSHarish Kasiviswanathan HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & 12363a87177eSHarish Kasiviswanathan HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); 12373a87177eSHarish Kasiviswanathan break; 12383a87177eSHarish Kasiviswanathan default: 12393a87177eSHarish Kasiviswanathan WARN(1, "Unexpected ASIC family %u", 12403a87177eSHarish Kasiviswanathan dev->gpu->device_info->asic_family); 12417639a8c4SBen Goz } 12427639a8c4SBen Goz 12433a87177eSHarish Kasiviswanathan /* Fix errors in CZ CRAT. 12443a87177eSHarish Kasiviswanathan * simd_count: Carrizo CRAT reports wrong simd_count, probably 12453a87177eSHarish Kasiviswanathan * because it doesn't consider masked out CUs 124670f372bfSPhilip Cox * max_waves_per_simd: Carrizo reports wrong max_waves_per_simd 124770f372bfSPhilip Cox * capability flag: Carrizo CRAT doesn't report IOMMU flags 12483a87177eSHarish Kasiviswanathan */ 124970f372bfSPhilip Cox if (dev->gpu->device_info->asic_family == CHIP_CARRIZO) { 12503a87177eSHarish Kasiviswanathan dev->node_props.simd_count = 12513a87177eSHarish Kasiviswanathan cu_info.simd_per_cu * cu_info.cu_active_number; 125270f372bfSPhilip Cox dev->node_props.max_waves_per_simd = 10; 125370f372bfSPhilip Cox dev->node_props.capability |= HSA_CAP_ATS_PRESENT; 125470f372bfSPhilip Cox } 12553a87177eSHarish Kasiviswanathan 12563a87177eSHarish Kasiviswanathan kfd_debug_print_topology(); 12573a87177eSHarish Kasiviswanathan 12584f449311SHarish Kasiviswanathan if (!res) 12595b5c4e40SEvgeny Pinchuk kfd_notify_gpu_change(gpu_id, 1); 12604f449311SHarish Kasiviswanathan err: 12613a87177eSHarish Kasiviswanathan kfd_destroy_crat_image(crat_image); 12625b5c4e40SEvgeny Pinchuk return res; 12635b5c4e40SEvgeny Pinchuk } 12645b5c4e40SEvgeny Pinchuk 12655b5c4e40SEvgeny Pinchuk int kfd_topology_remove_device(struct kfd_dev *gpu) 12665b5c4e40SEvgeny Pinchuk { 12674f449311SHarish Kasiviswanathan struct kfd_topology_device *dev, *tmp; 12685b5c4e40SEvgeny Pinchuk uint32_t gpu_id; 12695b5c4e40SEvgeny Pinchuk int res = -ENODEV; 12705b5c4e40SEvgeny Pinchuk 12715b5c4e40SEvgeny Pinchuk down_write(&topology_lock); 12725b5c4e40SEvgeny Pinchuk 12734f449311SHarish Kasiviswanathan list_for_each_entry_safe(dev, tmp, &topology_device_list, list) 12745b5c4e40SEvgeny Pinchuk if (dev->gpu == gpu) { 12755b5c4e40SEvgeny Pinchuk gpu_id = dev->gpu_id; 12765b5c4e40SEvgeny Pinchuk kfd_remove_sysfs_node_entry(dev); 12775b5c4e40SEvgeny Pinchuk kfd_release_topology_device(dev); 12784f449311SHarish Kasiviswanathan sys_props.num_devices--; 12795b5c4e40SEvgeny Pinchuk res = 0; 12805b5c4e40SEvgeny Pinchuk if (kfd_topology_update_sysfs() < 0) 12815b5c4e40SEvgeny Pinchuk kfd_topology_release_sysfs(); 12825b5c4e40SEvgeny Pinchuk break; 12835b5c4e40SEvgeny Pinchuk } 12845b5c4e40SEvgeny Pinchuk 12855b5c4e40SEvgeny Pinchuk up_write(&topology_lock); 12865b5c4e40SEvgeny Pinchuk 1287174de876SFelix Kuehling if (!res) 12885b5c4e40SEvgeny Pinchuk kfd_notify_gpu_change(gpu_id, 0); 12895b5c4e40SEvgeny Pinchuk 12905b5c4e40SEvgeny Pinchuk return res; 12915b5c4e40SEvgeny Pinchuk } 12925b5c4e40SEvgeny Pinchuk 12936d82eb0eSHarish Kasiviswanathan /* kfd_topology_enum_kfd_devices - Enumerate through all devices in KFD 12946d82eb0eSHarish Kasiviswanathan * topology. If GPU device is found @idx, then valid kfd_dev pointer is 12956d82eb0eSHarish Kasiviswanathan * returned through @kdev 12966d82eb0eSHarish Kasiviswanathan * Return - 0: On success (@kdev will be NULL for non GPU nodes) 12976d82eb0eSHarish Kasiviswanathan * -1: If end of list 12985b5c4e40SEvgeny Pinchuk */ 12996d82eb0eSHarish Kasiviswanathan int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev) 13005b5c4e40SEvgeny Pinchuk { 13015b5c4e40SEvgeny Pinchuk 13025b5c4e40SEvgeny Pinchuk struct kfd_topology_device *top_dev; 13035b5c4e40SEvgeny Pinchuk uint8_t device_idx = 0; 13045b5c4e40SEvgeny Pinchuk 13056d82eb0eSHarish Kasiviswanathan *kdev = NULL; 13065b5c4e40SEvgeny Pinchuk down_read(&topology_lock); 13075b5c4e40SEvgeny Pinchuk 13085b5c4e40SEvgeny Pinchuk list_for_each_entry(top_dev, &topology_device_list, list) { 13095b5c4e40SEvgeny Pinchuk if (device_idx == idx) { 13106d82eb0eSHarish Kasiviswanathan *kdev = top_dev->gpu; 13116d82eb0eSHarish Kasiviswanathan up_read(&topology_lock); 13126d82eb0eSHarish Kasiviswanathan return 0; 13135b5c4e40SEvgeny Pinchuk } 13145b5c4e40SEvgeny Pinchuk 13155b5c4e40SEvgeny Pinchuk device_idx++; 13165b5c4e40SEvgeny Pinchuk } 13175b5c4e40SEvgeny Pinchuk 13185b5c4e40SEvgeny Pinchuk up_read(&topology_lock); 13195b5c4e40SEvgeny Pinchuk 13206d82eb0eSHarish Kasiviswanathan return -1; 13215b5c4e40SEvgeny Pinchuk 13225b5c4e40SEvgeny Pinchuk } 1323851a645eSFelix Kuehling 1324520b8fb7SFelix Kuehling static int kfd_cpumask_to_apic_id(const struct cpumask *cpumask) 1325520b8fb7SFelix Kuehling { 1326520b8fb7SFelix Kuehling const struct cpuinfo_x86 *cpuinfo; 1327520b8fb7SFelix Kuehling int first_cpu_of_numa_node; 1328520b8fb7SFelix Kuehling 1329520b8fb7SFelix Kuehling if (!cpumask || cpumask == cpu_none_mask) 1330520b8fb7SFelix Kuehling return -1; 1331520b8fb7SFelix Kuehling first_cpu_of_numa_node = cpumask_first(cpumask); 1332520b8fb7SFelix Kuehling if (first_cpu_of_numa_node >= nr_cpu_ids) 1333520b8fb7SFelix Kuehling return -1; 1334520b8fb7SFelix Kuehling cpuinfo = &cpu_data(first_cpu_of_numa_node); 1335520b8fb7SFelix Kuehling 1336520b8fb7SFelix Kuehling return cpuinfo->apicid; 1337520b8fb7SFelix Kuehling } 1338520b8fb7SFelix Kuehling 1339520b8fb7SFelix Kuehling /* kfd_numa_node_to_apic_id - Returns the APIC ID of the first logical processor 1340520b8fb7SFelix Kuehling * of the given NUMA node (numa_node_id) 1341520b8fb7SFelix Kuehling * Return -1 on failure 1342520b8fb7SFelix Kuehling */ 1343520b8fb7SFelix Kuehling int kfd_numa_node_to_apic_id(int numa_node_id) 1344520b8fb7SFelix Kuehling { 1345520b8fb7SFelix Kuehling if (numa_node_id == -1) { 1346520b8fb7SFelix Kuehling pr_warn("Invalid NUMA Node. Use online CPU mask\n"); 1347520b8fb7SFelix Kuehling return kfd_cpumask_to_apic_id(cpu_online_mask); 1348520b8fb7SFelix Kuehling } 1349520b8fb7SFelix Kuehling return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id)); 1350520b8fb7SFelix Kuehling } 1351520b8fb7SFelix Kuehling 1352851a645eSFelix Kuehling #if defined(CONFIG_DEBUG_FS) 1353851a645eSFelix Kuehling 1354851a645eSFelix Kuehling int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data) 1355851a645eSFelix Kuehling { 1356851a645eSFelix Kuehling struct kfd_topology_device *dev; 1357851a645eSFelix Kuehling unsigned int i = 0; 1358851a645eSFelix Kuehling int r = 0; 1359851a645eSFelix Kuehling 1360851a645eSFelix Kuehling down_read(&topology_lock); 1361851a645eSFelix Kuehling 1362851a645eSFelix Kuehling list_for_each_entry(dev, &topology_device_list, list) { 1363851a645eSFelix Kuehling if (!dev->gpu) { 1364851a645eSFelix Kuehling i++; 1365851a645eSFelix Kuehling continue; 1366851a645eSFelix Kuehling } 1367851a645eSFelix Kuehling 1368851a645eSFelix Kuehling seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id); 1369851a645eSFelix Kuehling r = dqm_debugfs_hqds(m, dev->gpu->dqm); 1370851a645eSFelix Kuehling if (r) 1371851a645eSFelix Kuehling break; 1372851a645eSFelix Kuehling } 1373851a645eSFelix Kuehling 1374851a645eSFelix Kuehling up_read(&topology_lock); 1375851a645eSFelix Kuehling 1376851a645eSFelix Kuehling return r; 1377851a645eSFelix Kuehling } 1378851a645eSFelix Kuehling 1379851a645eSFelix Kuehling int kfd_debugfs_rls_by_device(struct seq_file *m, void *data) 1380851a645eSFelix Kuehling { 1381851a645eSFelix Kuehling struct kfd_topology_device *dev; 1382851a645eSFelix Kuehling unsigned int i = 0; 1383851a645eSFelix Kuehling int r = 0; 1384851a645eSFelix Kuehling 1385851a645eSFelix Kuehling down_read(&topology_lock); 1386851a645eSFelix Kuehling 1387851a645eSFelix Kuehling list_for_each_entry(dev, &topology_device_list, list) { 1388851a645eSFelix Kuehling if (!dev->gpu) { 1389851a645eSFelix Kuehling i++; 1390851a645eSFelix Kuehling continue; 1391851a645eSFelix Kuehling } 1392851a645eSFelix Kuehling 1393851a645eSFelix Kuehling seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id); 1394851a645eSFelix Kuehling r = pm_debugfs_runlist(m, &dev->gpu->dqm->packets); 1395851a645eSFelix Kuehling if (r) 1396851a645eSFelix Kuehling break; 1397851a645eSFelix Kuehling } 1398851a645eSFelix Kuehling 1399851a645eSFelix Kuehling up_read(&topology_lock); 1400851a645eSFelix Kuehling 1401851a645eSFelix Kuehling return r; 1402851a645eSFelix Kuehling } 1403851a645eSFelix Kuehling 1404851a645eSFelix Kuehling #endif 1405