diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_topology.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 1383 |
1 files changed, 1073 insertions, 310 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index b1ce072aa20b..811636af14ea 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -1,5 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT /* - * Copyright 2014 Advanced Micro Devices, Inc. + * Copyright 2014-2022 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"), @@ -30,37 +31,49 @@ #include <linux/log2.h> #include <linux/dmi.h> #include <linux/atomic.h> +#include <linux/crc16.h> #include "kfd_priv.h" #include "kfd_crat.h" #include "kfd_topology.h" #include "kfd_device_queue_manager.h" -#include "kfd_iommu.h" #include "kfd_svm.h" +#include "kfd_debug.h" #include "amdgpu_amdkfd.h" #include "amdgpu_ras.h" +#include "amdgpu.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; +static uint32_t topology_crat_proximity_domain; -struct kfd_topology_device *kfd_topology_device_by_proximity_domain( +struct kfd_topology_device *kfd_topology_device_by_proximity_domain_no_lock( 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; } + return device; +} + +struct kfd_topology_device *kfd_topology_device_by_proximity_domain( + uint32_t proximity_domain) +{ + struct kfd_topology_device *device = NULL; + + down_read(&topology_lock); + + device = kfd_topology_device_by_proximity_domain_no_lock( + proximity_domain); up_read(&topology_lock); return device; @@ -84,7 +97,7 @@ struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id) return ret; } -struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) +struct kfd_node *kfd_device_by_id(uint32_t gpu_id) { struct kfd_topology_device *top_dev; @@ -95,48 +108,13 @@ struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) 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_iolink_properties *p2plink; struct kfd_perf_properties *perf; list_del(&dev->list); @@ -162,6 +140,13 @@ static void kfd_release_topology_device(struct kfd_topology_device *dev) kfree(iolink); } + while (dev->p2p_link_props.next != &dev->p2p_link_props) { + p2plink = container_of(dev->p2p_link_props.next, + struct kfd_iolink_properties, list); + list_del(&p2plink->list); + kfree(p2plink); + } + while (dev->perf_props.next != &dev->perf_props) { perf = container_of(dev->perf_props.next, struct kfd_perf_properties, list); @@ -203,6 +188,7 @@ struct kfd_topology_device *kfd_create_topology_device( INIT_LIST_HEAD(&dev->mem_props); INIT_LIST_HEAD(&dev->cache_props); INIT_LIST_HEAD(&dev->io_link_props); + INIT_LIST_HEAD(&dev->p2p_link_props); INIT_LIST_HEAD(&dev->perf_props); list_add_tail(&dev->list, device_list); @@ -257,7 +243,7 @@ static const struct sysfs_ops sysprops_ops = { .show = sysprops_show, }; -static struct kobj_type sysprops_type = { +static const struct kobj_type sysprops_type = { .release = kfd_topology_kobj_release, .sysfs_ops = &sysprops_ops, }; @@ -288,6 +274,8 @@ static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr, iolink->max_bandwidth); sysfs_show_32bit_prop(buffer, offs, "recommended_transfer_size", iolink->rec_transfer_size); + sysfs_show_32bit_prop(buffer, offs, "recommended_sdma_engine_id_mask", + iolink->rec_sdma_eng_id_mask); sysfs_show_32bit_prop(buffer, offs, "flags", iolink->flags); return offs; @@ -297,7 +285,7 @@ static const struct sysfs_ops iolink_ops = { .show = iolink_show, }; -static struct kobj_type iolink_type = { +static const struct kobj_type iolink_type = { .release = kfd_topology_kobj_release, .sysfs_ops = &iolink_ops, }; @@ -329,7 +317,7 @@ static const struct sysfs_ops mem_ops = { .show = mem_show, }; -static struct kobj_type mem_type = { +static const struct kobj_type mem_type = { .release = kfd_topology_kobj_release, .sysfs_ops = &mem_ops, }; @@ -343,7 +331,6 @@ static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr, /* 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; @@ -358,12 +345,13 @@ static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr, sysfs_show_32bit_prop(buffer, offs, "association", cache->cache_assoc); sysfs_show_32bit_prop(buffer, offs, "latency", cache->cache_latency); sysfs_show_32bit_prop(buffer, offs, "type", cache->cache_type); + offs += snprintf(buffer+offs, PAGE_SIZE-offs, "sibling_map "); - for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++) + for (i = 0; i < cache->sibling_map_size; i++) for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) /* Check each bit */ offs += snprintf(buffer+offs, PAGE_SIZE-offs, "%d,", - (cache->sibling_map[i] >> j) & 1); + (cache->sibling_map[i] >> j) & 1); /* Replace the last "," with end of line */ buffer[offs-1] = '\n'; @@ -374,7 +362,7 @@ static const struct sysfs_ops cache_ops = { .show = kfd_cache_show, }; -static struct kobj_type cache_type = { +static const struct kobj_type cache_type = { .release = kfd_topology_kobj_release, .sysfs_ops = &cache_ops, }; @@ -454,6 +442,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, dev->node_props.caches_count); sysfs_show_32bit_prop(buffer, offs, "io_links_count", dev->node_props.io_links_count); + sysfs_show_32bit_prop(buffer, offs, "p2p_links_count", + dev->node_props.p2p_links_count); sysfs_show_32bit_prop(buffer, offs, "cpu_core_id_base", dev->node_props.cpu_core_id_base); sysfs_show_32bit_prop(buffer, offs, "simd_id_base", @@ -469,7 +459,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, sysfs_show_32bit_prop(buffer, offs, "wave_front_size", dev->node_props.wave_front_size); sysfs_show_32bit_prop(buffer, offs, "array_count", - dev->node_props.array_count); + dev->gpu ? (dev->node_props.array_count * + NUM_XCC(dev->gpu->xcc_mask)) : 0); sysfs_show_32bit_prop(buffer, offs, "simd_arrays_per_engine", dev->node_props.simd_arrays_per_engine); sysfs_show_32bit_prop(buffer, offs, "cu_per_simd_array", @@ -478,6 +469,8 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, dev->node_props.simd_per_cu); sysfs_show_32bit_prop(buffer, offs, "max_slots_scratch_cu", dev->node_props.max_slots_scratch_cu); + sysfs_show_32bit_prop(buffer, offs, "gfx_target_version", + dev->node_props.gfx_target_version); sysfs_show_32bit_prop(buffer, offs, "vendor_id", dev->node_props.vendor_id); sysfs_show_32bit_prop(buffer, offs, "device_id", @@ -501,7 +494,7 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, if (dev->gpu) { log_max_watch_addr = - __ilog2_u32(dev->gpu->device_info->num_of_watch_points); + __ilog2_u32(dev->gpu->kfd->device_info.num_of_watch_points); if (log_max_watch_addr) { dev->node_props.capability |= @@ -513,24 +506,37 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, HSA_CAP_WATCH_POINTS_TOTALBITS_MASK); } - if (dev->gpu->device_info->asic_family == CHIP_TONGA) + if (dev->gpu->adev->asic_type == CHIP_TONGA) dev->node_props.capability |= HSA_CAP_AQL_QUEUE_DOUBLE_MAP; + if (KFD_GC_VERSION(dev->gpu) < IP_VERSION(10, 0, 0) && + (dev->gpu->adev->sdma.supported_reset & AMDGPU_RESET_TYPE_PER_QUEUE)) + dev->node_props.capability2 |= HSA_CAP2_PER_SDMA_QUEUE_RESET_SUPPORTED; + sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_fcompute", dev->node_props.max_engine_clk_fcompute); sysfs_show_64bit_prop(buffer, offs, "local_mem_size", 0ULL); sysfs_show_32bit_prop(buffer, offs, "fw_version", - dev->gpu->mec_fw_version); + dev->gpu->kfd->mec_fw_version); sysfs_show_32bit_prop(buffer, offs, "capability", dev->node_props.capability); + sysfs_show_32bit_prop(buffer, offs, "capability2", + dev->node_props.capability2); + sysfs_show_64bit_prop(buffer, offs, "debug_prop", + dev->node_props.debug_prop); sysfs_show_32bit_prop(buffer, offs, "sdma_fw_version", - dev->gpu->sdma_fw_version); + dev->gpu->kfd->sdma_fw_version); sysfs_show_64bit_prop(buffer, offs, "unique_id", - amdgpu_amdkfd_get_unique_id(dev->gpu->kgd)); - + dev->gpu->xcp && + (dev->gpu->xcp->xcp_mgr->mode != + AMDGPU_SPX_PARTITION_MODE) ? + dev->gpu->xcp->unique_id : + dev->gpu->adev->unique_id); + sysfs_show_32bit_prop(buffer, offs, "num_xcc", + NUM_XCC(dev->gpu->xcc_mask)); } return sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_ccompute", @@ -541,7 +547,7 @@ static const struct sysfs_ops node_ops = { .show = node_show, }; -static struct kobj_type node_type = { +static const struct kobj_type node_type = { .release = kfd_topology_kobj_release, .sysfs_ops = &node_ops, }; @@ -555,6 +561,7 @@ static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr) static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev) { + struct kfd_iolink_properties *p2plink; struct kfd_iolink_properties *iolink; struct kfd_cache_properties *cache; struct kfd_mem_properties *mem; @@ -572,6 +579,18 @@ static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev) dev->kobj_iolink = NULL; } + if (dev->kobj_p2plink) { + list_for_each_entry(p2plink, &dev->p2p_link_props, list) + if (p2plink->kobj) { + kfd_remove_sysfs_file(p2plink->kobj, + &p2plink->attr); + p2plink->kobj = NULL; + } + kobject_del(dev->kobj_p2plink); + kobject_put(dev->kobj_p2plink); + dev->kobj_p2plink = NULL; + } + if (dev->kobj_cache) { list_for_each_entry(cache, &dev->cache_props, list) if (cache->kobj) { @@ -618,6 +637,7 @@ static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev) static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev, uint32_t id) { + struct kfd_iolink_properties *p2plink; struct kfd_iolink_properties *iolink; struct kfd_cache_properties *cache; struct kfd_mem_properties *mem; @@ -655,6 +675,10 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev, if (!dev->kobj_iolink) return -ENOMEM; + dev->kobj_p2plink = kobject_create_and_add("p2p_links", dev->kobj_node); + if (!dev->kobj_p2plink) + return -ENOMEM; + dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node); if (!dev->kobj_perf) return -ENOMEM; @@ -744,6 +768,27 @@ static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev, i++; } + i = 0; + list_for_each_entry(p2plink, &dev->p2p_link_props, list) { + p2plink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); + if (!p2plink->kobj) + return -ENOMEM; + ret = kobject_init_and_add(p2plink->kobj, &iolink_type, + dev->kobj_p2plink, "%d", i); + if (ret < 0) { + kobject_put(p2plink->kobj); + return ret; + } + + p2plink->attr.name = "properties"; + p2plink->attr.mode = KFD_SYSFS_FILE_MODE; + sysfs_attr_init(&p2plink->attr); + ret = sysfs_create_file(p2plink->kobj, &p2plink->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) { @@ -908,44 +953,31 @@ static void kfd_update_system_properties(void) 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_id = dev->oem_id64; 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) +static void find_system_memory(const struct dmi_header *dm, void *private) { + struct dmi_mem_device *memdev = container_of(dm, struct dmi_mem_device, header); 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); + if (memdev->header.type != DMI_ENTRY_MEM_DEVICE) + return; + if (memdev->header.length < sizeof(struct dmi_mem_device)) + return; + + list_for_each_entry(mem, &kdev->mem_props, list) { + if (memdev->total_width != 0xFFFF && memdev->total_width != 0) + mem->width = memdev->total_width; + if (memdev->speed != 0) + mem->mem_clk_max = memdev->speed; + } } /* kfd_add_non_crat_information - Add information that is not currently @@ -962,25 +994,6 @@ static void kfd_add_non_crat_information(struct kfd_topology_device *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; @@ -1011,53 +1024,30 @@ int kfd_topology_init(void) */ 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; - } + 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; } - 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; - } + 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); + topology_crat_proximity_domain = sys_props.num_devices-1; ret = kfd_topology_update_sysfs(); up_write(&topology_lock); @@ -1093,56 +1083,79 @@ void kfd_topology_shutdown(void) up_write(&topology_lock); } -static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu) +static uint32_t kfd_generate_gpu_id(struct kfd_node *gpu) { - uint32_t hashout; - uint32_t buf[7]; + uint32_t gpu_id; + uint32_t buf[8]; uint64_t local_mem_size; - int i; - struct kfd_local_mem_info local_mem_info; + struct kfd_topology_device *dev; + bool is_unique; + uint8_t *crc_buf; 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; + crc_buf = (uint8_t *)&buf; + local_mem_size = gpu->local_mem_info.local_mem_size_private + + gpu->local_mem_info.local_mem_size_public; + buf[0] = gpu->adev->pdev->devfn; + buf[1] = gpu->adev->pdev->subsystem_vendor | + (gpu->adev->pdev->subsystem_device << 16); + buf[2] = pci_domain_nr(gpu->adev->pdev->bus); + buf[3] = gpu->adev->pdev->device; + buf[4] = gpu->adev->pdev->bus->number; buf[5] = lower_32_bits(local_mem_size); buf[6] = upper_32_bits(local_mem_size); + buf[7] = (ffs(gpu->xcc_mask) - 1) | (NUM_XCC(gpu->xcc_mask) << 16); - for (i = 0, hashout = 0; i < 7; i++) - hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH); + gpu_id = crc16(0, crc_buf, sizeof(buf)) & + ((1 << KFD_GPU_ID_HASH_WIDTH) - 1); - return hashout; + /* There is a very small possibility when generating a + * 16 (KFD_GPU_ID_HASH_WIDTH) bit value from 8 word buffer + * that the value could be 0 or non-unique. So, check if + * it is unique and non-zero. If not unique increment till + * unique one is found. In case of overflow, restart from 1 + */ + + down_read(&topology_lock); + do { + is_unique = true; + if (!gpu_id) + gpu_id = 1; + list_for_each_entry(dev, &topology_device_list, list) { + if (dev->gpu && dev->gpu_id == gpu_id) { + is_unique = false; + break; + } + } + if (unlikely(!is_unique)) + gpu_id = (gpu_id + 1) & + ((1 << KFD_GPU_ID_HASH_WIDTH) - 1); + } while (!is_unique); + up_read(&topology_lock); + + return gpu_id; } /* 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) +static struct kfd_topology_device *kfd_assign_gpu(struct kfd_node *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; + struct kfd_iolink_properties *p2plink; - 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->use_iommu_v2 && - dev->node_props.cpu_cores_count) + if (dev->node_props.cpu_cores_count) continue; if (!dev->gpu && (dev->node_props.simd_count > 0)) { @@ -1155,10 +1168,11 @@ static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu) cache->gpu = dev->gpu; list_for_each_entry(iolink, &dev->io_link_props, list) iolink->gpu = dev->gpu; + list_for_each_entry(p2plink, &dev->p2p_link_props, list) + p2plink->gpu = dev->gpu; break; } } - up_write(&topology_lock); return out_dev; } @@ -1187,7 +1201,8 @@ static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev) * 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); + amdgpu_amdkfd_get_local_mem_info(dev->gpu->adev, &local_mem_info, + dev->gpu->xcp); list_for_each_entry(mem, &dev->mem_props, list) mem->mem_clk_max = local_mem_info.mem_clk_max; @@ -1205,7 +1220,7 @@ static void kfd_set_iolink_no_atomics(struct kfd_topology_device *dev, if (target_gpu_dev) { uint32_t cap; - pcie_capability_read_dword(target_gpu_dev->gpu->pdev, + pcie_capability_read_dword(target_gpu_dev->gpu->adev->pdev, PCI_EXP_DEVCAP2, &cap); if (!(cap & (PCI_EXP_DEVCAP2_ATOMIC_COMP32 | @@ -1214,9 +1229,8 @@ static void kfd_set_iolink_no_atomics(struct kfd_topology_device *dev, CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT; /* set gpu (dev) flags. */ } else { - if (!dev->gpu->pci_atomic_requested || - dev->gpu->device_info->asic_family == - CHIP_HAWAII) + if (!dev->gpu->kfd->pci_atomic_requested || + dev->gpu->adev->asic_type == CHIP_HAWAII) link->flags |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT | CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT; } @@ -1237,13 +1251,68 @@ static void kfd_set_iolink_non_coherent(struct kfd_topology_device *to_dev, */ if (inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS || (inbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI && - to_dev->gpu->device_info->asic_family == CHIP_VEGA20)) { + KFD_GC_VERSION(to_dev->gpu) == IP_VERSION(9, 4, 0))) { outbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT; inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT; } } } +#define REC_SDMA_NUM_GPU 8 +static const int rec_sdma_eng_map[REC_SDMA_NUM_GPU][REC_SDMA_NUM_GPU] = { + { -1, 14, 12, 2, 4, 8, 10, 6 }, + { 14, -1, 2, 10, 8, 4, 6, 12 }, + { 10, 2, -1, 12, 14, 6, 4, 8 }, + { 2, 12, 10, -1, 6, 14, 8, 4 }, + { 4, 8, 14, 6, -1, 10, 12, 2 }, + { 8, 4, 6, 14, 12, -1, 2, 10 }, + { 10, 6, 4, 8, 12, 2, -1, 14 }, + { 6, 12, 8, 4, 2, 10, 14, -1 }}; + +static void kfd_set_recommended_sdma_engines(struct kfd_topology_device *to_dev, + struct kfd_iolink_properties *outbound_link, + struct kfd_iolink_properties *inbound_link) +{ + struct kfd_node *gpu = outbound_link->gpu; + struct amdgpu_device *adev = gpu->adev; + unsigned int num_xgmi_nodes = adev->gmc.xgmi.num_physical_nodes; + unsigned int num_xgmi_sdma_engines = kfd_get_num_xgmi_sdma_engines(gpu); + unsigned int num_sdma_engines = kfd_get_num_sdma_engines(gpu); + uint32_t sdma_eng_id_mask = (1 << num_sdma_engines) - 1; + uint32_t xgmi_sdma_eng_id_mask = + ((1 << num_xgmi_sdma_engines) - 1) << num_sdma_engines; + + bool support_rec_eng = !amdgpu_sriov_vf(adev) && to_dev->gpu && + adev->aid_mask && num_xgmi_nodes && gpu->kfd->num_nodes == 1 && + num_xgmi_sdma_engines >= 6 && (!(adev->flags & AMD_IS_APU) && + num_xgmi_nodes == 8); + + if (support_rec_eng) { + int src_socket_id = adev->gmc.xgmi.physical_node_id; + int dst_socket_id = to_dev->gpu->adev->gmc.xgmi.physical_node_id; + unsigned int reshift = num_xgmi_sdma_engines == 6 ? 1 : 0; + + outbound_link->rec_sdma_eng_id_mask = + 1 << (rec_sdma_eng_map[src_socket_id][dst_socket_id] >> reshift); + inbound_link->rec_sdma_eng_id_mask = + 1 << (rec_sdma_eng_map[dst_socket_id][src_socket_id] >> reshift); + + /* If recommended engine is out of range, need to reset the mask */ + if (outbound_link->rec_sdma_eng_id_mask & sdma_eng_id_mask) + outbound_link->rec_sdma_eng_id_mask = xgmi_sdma_eng_id_mask; + if (inbound_link->rec_sdma_eng_id_mask & sdma_eng_id_mask) + inbound_link->rec_sdma_eng_id_mask = xgmi_sdma_eng_id_mask; + + } else { + uint32_t engine_mask = (outbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI && + num_xgmi_sdma_engines && to_dev->gpu) ? xgmi_sdma_eng_id_mask : + sdma_eng_id_mask; + + outbound_link->rec_sdma_eng_id_mask = engine_mask; + inbound_link->rec_sdma_eng_id_mask = engine_mask; + } +} + static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev) { struct kfd_iolink_properties *link, *inbound_link; @@ -1262,6 +1331,18 @@ static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev) if (!peer_dev) continue; + /* Include the CPU peer in GPU hive if connected over xGMI. */ + if (!peer_dev->gpu && + link->iolink_type == CRAT_IOLINK_TYPE_XGMI) { + /* + * If the GPU is not part of a GPU hive, use its pci + * device location as the hive ID to bind with the CPU. + */ + if (!dev->node_props.hive_id) + dev->node_props.hive_id = pci_dev_id(dev->gpu->adev->pdev); + peer_dev->node_props.hive_id = dev->node_props.hive_id; + } + list_for_each_entry(inbound_link, &peer_dev->io_link_props, list) { if (inbound_link->node_to != link->node_from) @@ -1270,29 +1351,701 @@ static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev) inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED; kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link); kfd_set_iolink_non_coherent(peer_dev, link, inbound_link); + kfd_set_recommended_sdma_engines(peer_dev, link, inbound_link); + } + } + + /* Create indirect links so apply flags setting to all */ + list_for_each_entry(link, &dev->p2p_link_props, list) { + link->flags = CRAT_IOLINK_FLAGS_ENABLED; + kfd_set_iolink_no_atomics(dev, NULL, link); + peer_dev = kfd_topology_device_by_proximity_domain( + link->node_to); + + if (!peer_dev) + continue; + + list_for_each_entry(inbound_link, &peer_dev->p2p_link_props, + list) { + if (inbound_link->node_to != link->node_from) + continue; + + inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED; + kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link); + kfd_set_iolink_non_coherent(peer_dev, link, inbound_link); } } } -int kfd_topology_add_device(struct kfd_dev *gpu) +static int kfd_build_p2p_node_entry(struct kfd_topology_device *dev, + struct kfd_iolink_properties *p2plink) +{ + int ret; + + p2plink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); + if (!p2plink->kobj) + return -ENOMEM; + + ret = kobject_init_and_add(p2plink->kobj, &iolink_type, + dev->kobj_p2plink, "%d", dev->node_props.p2p_links_count - 1); + if (ret < 0) { + kobject_put(p2plink->kobj); + return ret; + } + + p2plink->attr.name = "properties"; + p2plink->attr.mode = KFD_SYSFS_FILE_MODE; + sysfs_attr_init(&p2plink->attr); + ret = sysfs_create_file(p2plink->kobj, &p2plink->attr); + if (ret < 0) + return ret; + + return 0; +} + +static int kfd_create_indirect_link_prop(struct kfd_topology_device *kdev, int gpu_node) +{ + struct kfd_iolink_properties *gpu_link, *tmp_link, *cpu_link; + struct kfd_iolink_properties *props = NULL, *props2 = NULL; + struct kfd_topology_device *cpu_dev; + int ret = 0; + int i, num_cpu; + + num_cpu = 0; + list_for_each_entry(cpu_dev, &topology_device_list, list) { + if (cpu_dev->gpu) + break; + num_cpu++; + } + + if (list_empty(&kdev->io_link_props)) + return -ENODATA; + + gpu_link = list_first_entry(&kdev->io_link_props, + struct kfd_iolink_properties, list); + + for (i = 0; i < num_cpu; i++) { + /* CPU <--> GPU */ + if (gpu_link->node_to == i) + continue; + + /* find CPU <--> CPU links */ + cpu_link = NULL; + cpu_dev = kfd_topology_device_by_proximity_domain(i); + if (cpu_dev) { + list_for_each_entry(tmp_link, + &cpu_dev->io_link_props, list) { + if (tmp_link->node_to == gpu_link->node_to) { + cpu_link = tmp_link; + break; + } + } + } + + if (!cpu_link) + return -ENOMEM; + + /* CPU <--> CPU <--> GPU, GPU node*/ + props = kfd_alloc_struct(props); + if (!props) + return -ENOMEM; + + memcpy(props, gpu_link, sizeof(struct kfd_iolink_properties)); + props->weight = gpu_link->weight + cpu_link->weight; + props->min_latency = gpu_link->min_latency + cpu_link->min_latency; + props->max_latency = gpu_link->max_latency + cpu_link->max_latency; + props->min_bandwidth = min(gpu_link->min_bandwidth, cpu_link->min_bandwidth); + props->max_bandwidth = min(gpu_link->max_bandwidth, cpu_link->max_bandwidth); + + props->node_from = gpu_node; + props->node_to = i; + kdev->node_props.p2p_links_count++; + list_add_tail(&props->list, &kdev->p2p_link_props); + ret = kfd_build_p2p_node_entry(kdev, props); + if (ret < 0) + return ret; + + /* for small Bar, no CPU --> GPU in-direct links */ + if (kfd_dev_is_large_bar(kdev->gpu)) { + /* CPU <--> CPU <--> GPU, CPU node*/ + props2 = kfd_alloc_struct(props2); + if (!props2) + return -ENOMEM; + + memcpy(props2, props, sizeof(struct kfd_iolink_properties)); + props2->node_from = i; + props2->node_to = gpu_node; + props2->kobj = NULL; + cpu_dev->node_props.p2p_links_count++; + list_add_tail(&props2->list, &cpu_dev->p2p_link_props); + ret = kfd_build_p2p_node_entry(cpu_dev, props2); + if (ret < 0) + return ret; + } + } + return ret; +} + +#if defined(CONFIG_HSA_AMD_P2P) +static int kfd_add_peer_prop(struct kfd_topology_device *kdev, + struct kfd_topology_device *peer, int from, int to) +{ + struct kfd_iolink_properties *props = NULL; + struct kfd_iolink_properties *iolink1, *iolink2, *iolink3; + struct kfd_topology_device *cpu_dev; + int ret = 0; + + if (!amdgpu_device_is_peer_accessible( + kdev->gpu->adev, + peer->gpu->adev)) + return ret; + + if (list_empty(&kdev->io_link_props)) + return -ENODATA; + + iolink1 = list_first_entry(&kdev->io_link_props, + struct kfd_iolink_properties, list); + + if (list_empty(&peer->io_link_props)) + return -ENODATA; + + iolink2 = list_first_entry(&peer->io_link_props, + struct kfd_iolink_properties, list); + + props = kfd_alloc_struct(props); + if (!props) + return -ENOMEM; + + memcpy(props, iolink1, sizeof(struct kfd_iolink_properties)); + + props->weight = iolink1->weight + iolink2->weight; + props->min_latency = iolink1->min_latency + iolink2->min_latency; + props->max_latency = iolink1->max_latency + iolink2->max_latency; + props->min_bandwidth = min(iolink1->min_bandwidth, iolink2->min_bandwidth); + props->max_bandwidth = min(iolink2->max_bandwidth, iolink2->max_bandwidth); + + if (iolink1->node_to != iolink2->node_to) { + /* CPU->CPU link*/ + cpu_dev = kfd_topology_device_by_proximity_domain(iolink1->node_to); + if (cpu_dev) { + list_for_each_entry(iolink3, &cpu_dev->io_link_props, list) { + if (iolink3->node_to != iolink2->node_to) + continue; + + props->weight += iolink3->weight; + props->min_latency += iolink3->min_latency; + props->max_latency += iolink3->max_latency; + props->min_bandwidth = min(props->min_bandwidth, + iolink3->min_bandwidth); + props->max_bandwidth = min(props->max_bandwidth, + iolink3->max_bandwidth); + break; + } + } else { + WARN(1, "CPU node not found"); + } + } + + props->node_from = from; + props->node_to = to; + peer->node_props.p2p_links_count++; + list_add_tail(&props->list, &peer->p2p_link_props); + ret = kfd_build_p2p_node_entry(peer, props); + + return ret; +} +#endif + +static int kfd_dev_create_p2p_links(void) { - uint32_t gpu_id; struct kfd_topology_device *dev; - struct kfd_cu_info cu_info; - int res = 0; + struct kfd_topology_device *new_dev; +#if defined(CONFIG_HSA_AMD_P2P) + uint32_t i; +#endif + uint32_t k; + int ret = 0; + + k = 0; + list_for_each_entry(dev, &topology_device_list, list) + k++; + if (k < 2) + return 0; + + new_dev = list_last_entry(&topology_device_list, struct kfd_topology_device, list); + if (WARN_ON(!new_dev->gpu)) + return 0; + + k--; + + /* create in-direct links */ + ret = kfd_create_indirect_link_prop(new_dev, k); + if (ret < 0) + goto out; + + /* create p2p links */ +#if defined(CONFIG_HSA_AMD_P2P) + i = 0; + list_for_each_entry(dev, &topology_device_list, list) { + if (dev == new_dev) + break; + if (!dev->gpu || !dev->gpu->adev || + (dev->gpu->kfd->hive_id && + dev->gpu->kfd->hive_id == new_dev->gpu->kfd->hive_id && + amdgpu_xgmi_get_is_sharing_enabled(dev->gpu->adev, new_dev->gpu->adev))) + goto next; + + /* check if node(s) is/are peer accessible in one direction or bi-direction */ + ret = kfd_add_peer_prop(new_dev, dev, i, k); + if (ret < 0) + goto out; + + ret = kfd_add_peer_prop(dev, new_dev, k, i); + if (ret < 0) + goto out; +next: + i++; + } +#endif + +out: + return ret; +} + +/* Helper function. See kfd_fill_gpu_cache_info for parameter description */ +static int fill_in_l1_pcache(struct kfd_cache_properties **props_ext, + struct kfd_gpu_cache_info *pcache_info, + int cu_bitmask, + int cache_type, unsigned int cu_processor_id, + int cu_block) +{ + unsigned int cu_sibling_map_mask; + int first_active_cu; + struct kfd_cache_properties *pcache = NULL; + + cu_sibling_map_mask = cu_bitmask; + cu_sibling_map_mask >>= cu_block; + cu_sibling_map_mask &= ((1 << pcache_info[cache_type].num_cu_shared) - 1); + first_active_cu = ffs(cu_sibling_map_mask); + + /* CU could be inactive. In case of shared cache find the first active + * CU. and incase of non-shared cache check if the CU is inactive. If + * inactive active skip it + */ + if (first_active_cu) { + pcache = kfd_alloc_struct(pcache); + if (!pcache) + return -ENOMEM; + + memset(pcache, 0, sizeof(struct kfd_cache_properties)); + pcache->processor_id_low = cu_processor_id + (first_active_cu - 1); + pcache->cache_level = pcache_info[cache_type].cache_level; + pcache->cache_size = pcache_info[cache_type].cache_size; + pcache->cacheline_size = pcache_info[cache_type].cache_line_size; + + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_DATA_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_DATA; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_INST_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_INSTRUCTION; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_CPU_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_CPU; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_SIMD_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_HSACU; + + /* Sibling map is w.r.t processor_id_low, so shift out + * inactive CU + */ + cu_sibling_map_mask = + cu_sibling_map_mask >> (first_active_cu - 1); + + pcache->sibling_map[0] = (uint8_t)(cu_sibling_map_mask & 0xFF); + pcache->sibling_map[1] = + (uint8_t)((cu_sibling_map_mask >> 8) & 0xFF); + pcache->sibling_map[2] = + (uint8_t)((cu_sibling_map_mask >> 16) & 0xFF); + pcache->sibling_map[3] = + (uint8_t)((cu_sibling_map_mask >> 24) & 0xFF); + + pcache->sibling_map_size = 4; + *props_ext = pcache; + + return 0; + } + return 1; +} + +/* Helper function. See kfd_fill_gpu_cache_info for parameter description */ +static int fill_in_l2_l3_pcache(struct kfd_cache_properties **props_ext, + struct kfd_gpu_cache_info *pcache_info, + struct amdgpu_cu_info *cu_info, + struct amdgpu_gfx_config *gfx_info, + int cache_type, unsigned int cu_processor_id, + struct kfd_node *knode) +{ + unsigned int cu_sibling_map_mask = 0; + int first_active_cu; + int i, j, k, xcc, start, end; + int num_xcc = NUM_XCC(knode->xcc_mask); + struct kfd_cache_properties *pcache = NULL; + enum amdgpu_memory_partition mode; + struct amdgpu_device *adev = knode->adev; + bool found = false; + + start = ffs(knode->xcc_mask) - 1; + end = start + num_xcc; + + /* To find the bitmap in the first active cu in the first + * xcc, it is based on the assumption that evrey xcc must + * have at least one active cu. + */ + for (i = 0; i < gfx_info->max_shader_engines && !found; i++) { + for (j = 0; j < gfx_info->max_sh_per_se && !found; j++) { + if (cu_info->bitmap[start][i % 4][j % 4]) { + cu_sibling_map_mask = + cu_info->bitmap[start][i % 4][j % 4]; + found = true; + } + } + } + + cu_sibling_map_mask &= + ((1 << pcache_info[cache_type].num_cu_shared) - 1); + first_active_cu = ffs(cu_sibling_map_mask); + + /* CU could be inactive. In case of shared cache find the first active + * CU. and incase of non-shared cache check if the CU is inactive. If + * inactive active skip it + */ + if (first_active_cu) { + pcache = kfd_alloc_struct(pcache); + if (!pcache) + return -ENOMEM; + + memset(pcache, 0, sizeof(struct kfd_cache_properties)); + pcache->processor_id_low = cu_processor_id + + (first_active_cu - 1); + pcache->cache_level = pcache_info[cache_type].cache_level; + pcache->cacheline_size = pcache_info[cache_type].cache_line_size; + + if (KFD_GC_VERSION(knode) == IP_VERSION(9, 4, 3) || + KFD_GC_VERSION(knode) == IP_VERSION(9, 4, 4) || + KFD_GC_VERSION(knode) == IP_VERSION(9, 5, 0)) + mode = adev->gmc.gmc_funcs->query_mem_partition_mode(adev); + else + mode = UNKNOWN_MEMORY_PARTITION_MODE; + + pcache->cache_size = pcache_info[cache_type].cache_size; + /* Partition mode only affects L3 cache size */ + if (mode && pcache->cache_level == 3) + pcache->cache_size /= mode; + + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_DATA_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_DATA; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_INST_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_INSTRUCTION; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_CPU_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_CPU; + if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_SIMD_CACHE) + pcache->cache_type |= HSA_CACHE_TYPE_HSACU; + + /* Sibling map is w.r.t processor_id_low, so shift out + * inactive CU + */ + cu_sibling_map_mask = cu_sibling_map_mask >> (first_active_cu - 1); + k = 0; + + for (xcc = start; xcc < end; xcc++) { + for (i = 0; i < gfx_info->max_shader_engines; i++) { + for (j = 0; j < gfx_info->max_sh_per_se; j++) { + pcache->sibling_map[k] = (uint8_t)(cu_sibling_map_mask & 0xFF); + pcache->sibling_map[k+1] = (uint8_t)((cu_sibling_map_mask >> 8) & 0xFF); + pcache->sibling_map[k+2] = (uint8_t)((cu_sibling_map_mask >> 16) & 0xFF); + pcache->sibling_map[k+3] = (uint8_t)((cu_sibling_map_mask >> 24) & 0xFF); + k += 4; + + cu_sibling_map_mask = cu_info->bitmap[xcc][i % 4][j + i / 4]; + cu_sibling_map_mask &= ((1 << pcache_info[cache_type].num_cu_shared) - 1); + } + } + } + pcache->sibling_map_size = k; + *props_ext = pcache; + return 0; + } + return 1; +} + +#define KFD_MAX_CACHE_TYPES 6 + +/* kfd_fill_cache_non_crat_info - Fill GPU cache info using kfd_gpu_cache_info + * tables + */ +static void kfd_fill_cache_non_crat_info(struct kfd_topology_device *dev, struct kfd_node *kdev) +{ + struct kfd_gpu_cache_info *pcache_info = NULL; + int i, j, k, xcc, start, end; + int ct = 0; + unsigned int cu_processor_id; + int ret; + unsigned int num_cu_shared; + struct amdgpu_cu_info *cu_info = &kdev->adev->gfx.cu_info; + struct amdgpu_gfx_config *gfx_info = &kdev->adev->gfx.config; + int gpu_processor_id; + struct kfd_cache_properties *props_ext = NULL; + int num_of_entries = 0; + int num_of_cache_types = 0; + struct kfd_gpu_cache_info cache_info[KFD_MAX_CACHE_TYPES]; + + + gpu_processor_id = dev->node_props.simd_id_base; + + memset(cache_info, 0, sizeof(cache_info)); + pcache_info = cache_info; + num_of_cache_types = kfd_get_gpu_cache_info(kdev, &pcache_info); + if (!num_of_cache_types) { + pr_warn("no cache info found\n"); + return; + } + + /* For each type of cache listed in the kfd_gpu_cache_info table, + * go through all available Compute Units. + * The [i,j,k] loop will + * if kfd_gpu_cache_info.num_cu_shared = 1 + * will parse through all available CU + * If (kfd_gpu_cache_info.num_cu_shared != 1) + * then it will consider only one CU from + * the shared unit + */ + start = ffs(kdev->xcc_mask) - 1; + end = start + NUM_XCC(kdev->xcc_mask); + + for (ct = 0; ct < num_of_cache_types; ct++) { + cu_processor_id = gpu_processor_id; + if (pcache_info[ct].cache_level == 1) { + for (xcc = start; xcc < end; xcc++) { + for (i = 0; i < gfx_info->max_shader_engines; i++) { + for (j = 0; j < gfx_info->max_sh_per_se; j++) { + for (k = 0; k < gfx_info->max_cu_per_sh; k += pcache_info[ct].num_cu_shared) { + + ret = fill_in_l1_pcache(&props_ext, pcache_info, + cu_info->bitmap[xcc][i % 4][j + i / 4], ct, + cu_processor_id, k); + + if (ret < 0) + break; + + if (!ret) { + num_of_entries++; + list_add_tail(&props_ext->list, &dev->cache_props); + } + + /* Move to next CU block */ + num_cu_shared = ((k + pcache_info[ct].num_cu_shared) <= + gfx_info->max_cu_per_sh) ? + pcache_info[ct].num_cu_shared : + (gfx_info->max_cu_per_sh - k); + cu_processor_id += num_cu_shared; + } + } + } + } + } else { + ret = fill_in_l2_l3_pcache(&props_ext, pcache_info, + cu_info, gfx_info, ct, cu_processor_id, kdev); + + if (ret < 0) + break; + + if (!ret) { + num_of_entries++; + list_add_tail(&props_ext->list, &dev->cache_props); + } + } + } + dev->node_props.caches_count += num_of_entries; + pr_debug("Added [%d] GPU cache entries\n", num_of_entries); +} + +static int kfd_topology_add_device_locked(struct kfd_node *gpu, + struct kfd_topology_device **dev) +{ + int proximity_domain = ++topology_crat_proximity_domain; struct list_head temp_topology_device_list; void *crat_image = NULL; size_t image_size = 0; - int proximity_domain; - struct amdgpu_device *adev; + int res; + + res = kfd_create_crat_image_virtual(&crat_image, &image_size, + COMPUTE_UNIT_GPU, gpu, + proximity_domain); + if (res) { + dev_err(gpu->adev->dev, "Error creating VCRAT\n"); + topology_crat_proximity_domain--; + goto err; + } INIT_LIST_HEAD(&temp_topology_device_list); - gpu_id = kfd_generate_gpu_id(gpu); + res = kfd_parse_crat_table(crat_image, + &temp_topology_device_list, + proximity_domain); + if (res) { + dev_err(gpu->adev->dev, "Error parsing VCRAT\n"); + topology_crat_proximity_domain--; + goto err; + } + + kfd_topology_update_device_list(&temp_topology_device_list, + &topology_device_list); + + *dev = kfd_assign_gpu(gpu); + if (WARN_ON(!*dev)) { + res = -ENODEV; + goto err; + } + + /* Fill the cache affinity information here for the GPUs + * using VCRAT + */ + kfd_fill_cache_non_crat_info(*dev, gpu); + + /* Update the SYSFS tree, since we added another topology + * device + */ + res = kfd_topology_update_sysfs(); + if (!res) + sys_props.generation_count++; + else + dev_err(gpu->adev->dev, "Failed to update GPU to sysfs topology. res=%d\n", + res); + +err: + kfd_destroy_crat_image(crat_image); + return res; +} + +static void kfd_topology_set_dbg_firmware_support(struct kfd_topology_device *dev) +{ + bool firmware_supported = true; + + if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(11, 0, 0) && + KFD_GC_VERSION(dev->gpu) < IP_VERSION(12, 0, 0)) { + uint32_t mes_api_rev = (dev->gpu->adev->mes.sched_version & + AMDGPU_MES_API_VERSION_MASK) >> + AMDGPU_MES_API_VERSION_SHIFT; + uint32_t mes_rev = dev->gpu->adev->mes.sched_version & + AMDGPU_MES_VERSION_MASK; + + firmware_supported = (mes_api_rev >= 14) && (mes_rev >= 64); + goto out; + } + + /* + * Note: Any unlisted devices here are assumed to support exception handling. + * Add additional checks here as needed. + */ + switch (KFD_GC_VERSION(dev->gpu)) { + case IP_VERSION(9, 0, 1): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 459 + 32768; + break; + case IP_VERSION(9, 1, 0): + case IP_VERSION(9, 2, 1): + case IP_VERSION(9, 2, 2): + case IP_VERSION(9, 3, 0): + case IP_VERSION(9, 4, 0): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 459; + break; + case IP_VERSION(9, 4, 1): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 60; + break; + case IP_VERSION(9, 4, 2): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 51; + break; + case IP_VERSION(10, 1, 10): + case IP_VERSION(10, 1, 2): + case IP_VERSION(10, 1, 1): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 144; + break; + case IP_VERSION(10, 3, 0): + case IP_VERSION(10, 3, 2): + case IP_VERSION(10, 3, 1): + case IP_VERSION(10, 3, 4): + case IP_VERSION(10, 3, 5): + firmware_supported = dev->gpu->kfd->mec_fw_version >= 89; + break; + case IP_VERSION(10, 1, 3): + case IP_VERSION(10, 3, 3): + firmware_supported = false; + break; + default: + break; + } + +out: + if (firmware_supported) + dev->node_props.capability |= HSA_CAP_TRAP_DEBUG_FIRMWARE_SUPPORTED; +} - pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id); +static void kfd_topology_set_capabilities(struct kfd_topology_device *dev) +{ + dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_2_0 << + HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & + HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); + + dev->node_props.capability |= HSA_CAP_TRAP_DEBUG_SUPPORT | + HSA_CAP_TRAP_DEBUG_WAVE_LAUNCH_TRAP_OVERRIDE_SUPPORTED | + HSA_CAP_TRAP_DEBUG_WAVE_LAUNCH_MODE_SUPPORTED; + + if (kfd_dbg_has_ttmps_always_setup(dev->gpu)) + dev->node_props.debug_prop |= HSA_DBG_DISPATCH_INFO_ALWAYS_VALID; + + if (KFD_GC_VERSION(dev->gpu) < IP_VERSION(10, 0, 0)) { + if (KFD_GC_VERSION(dev->gpu) == IP_VERSION(9, 4, 3) || + KFD_GC_VERSION(dev->gpu) == IP_VERSION(9, 4, 4)) + dev->node_props.debug_prop |= + HSA_DBG_WATCH_ADDR_MASK_LO_BIT_GFX9_4_3 | + HSA_DBG_WATCH_ADDR_MASK_HI_BIT_GFX9_4_3; + else + dev->node_props.debug_prop |= + HSA_DBG_WATCH_ADDR_MASK_LO_BIT_GFX9 | + HSA_DBG_WATCH_ADDR_MASK_HI_BIT; + + if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(9, 4, 2)) + dev->node_props.capability |= + HSA_CAP_TRAP_DEBUG_PRECISE_MEMORY_OPERATIONS_SUPPORTED; - proximity_domain = atomic_inc_return(&topology_crat_proximity_domain); + if (!amdgpu_sriov_vf(dev->gpu->adev)) + dev->node_props.capability |= HSA_CAP_PER_QUEUE_RESET_SUPPORTED; + + } else { + dev->node_props.debug_prop |= HSA_DBG_WATCH_ADDR_MASK_LO_BIT_GFX10 | + HSA_DBG_WATCH_ADDR_MASK_HI_BIT; + + if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(12, 0, 0)) + dev->node_props.capability |= + HSA_CAP_TRAP_DEBUG_PRECISE_ALU_OPERATIONS_SUPPORTED; + } + + kfd_topology_set_dbg_firmware_support(dev); +} + +int kfd_topology_add_device(struct kfd_node *gpu) +{ + uint32_t gpu_id; + struct kfd_topology_device *dev; + int res = 0; + int i; + const char *asic_name = amdgpu_asic_name[gpu->adev->asic_type]; + struct amdgpu_gfx_config *gfx_info = &gpu->adev->gfx.config; + struct amdgpu_cu_info *cu_info = &gpu->adev->gfx.cu_info; + + if (gpu->xcp && !gpu->xcp->ddev) { + dev_warn(gpu->adev->dev, + "Won't add GPU to topology since it has no drm node assigned."); + return 0; + } else { + dev_dbg(gpu->adev->dev, "Adding new GPU to topology\n"); + } /* Check to see if this gpu device exists in the topology_device_list. * If so, assign the gpu to that device, @@ -1300,50 +2053,20 @@ int kfd_topology_add_device(struct kfd_dev *gpu) * CRAT to create a new topology device. Once created assign the gpu to * that topology device */ + down_write(&topology_lock); 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; - } - } + if (!dev) + res = kfd_topology_add_device_locked(gpu, &dev); + up_write(&topology_lock); + if (res) + return res; + gpu_id = kfd_generate_gpu_id(gpu); dev->gpu_id = gpu_id; gpu->id = gpu_id; + kfd_dev_create_p2p_links(); + /* TODO: Move the following lines to function * kfd_add_non_crat_information */ @@ -1351,45 +2074,56 @@ int kfd_topology_add_device(struct kfd_dev *gpu) /* 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); + for (i = 0; i < KFD_TOPOLOGY_PUBLIC_NAME_SIZE-1; i++) { + dev->node_props.name[i] = __tolower(asic_name[i]); + if (asic_name[i] == '\0') + break; + } + dev->node_props.name[i] = '\0'; dev->node_props.simd_arrays_per_engine = - cu_info.num_shader_arrays_per_engine; + gfx_info->max_sh_per_se; - dev->node_props.vendor_id = gpu->pdev->vendor; - dev->node_props.device_id = gpu->pdev->device; + dev->node_props.gfx_target_version = + gpu->kfd->device_info.gfx_target_version; + dev->node_props.vendor_id = gpu->adev->pdev->vendor; + dev->node_props.device_id = gpu->adev->pdev->device; dev->node_props.capability |= - ((amdgpu_amdkfd_get_asic_rev_id(dev->gpu->kgd) << - HSA_CAP_ASIC_REVISION_SHIFT) & + ((dev->gpu->adev->rev_id << HSA_CAP_ASIC_REVISION_SHIFT) & HSA_CAP_ASIC_REVISION_MASK); - dev->node_props.location_id = pci_dev_id(gpu->pdev); - dev->node_props.domain = pci_domain_nr(gpu->pdev->bus); + + dev->node_props.location_id = pci_dev_id(gpu->adev->pdev); + if (gpu->kfd->num_nodes > 1) + dev->node_props.location_id |= dev->gpu->node_id; + + dev->node_props.domain = pci_domain_nr(gpu->adev->pdev->bus); dev->node_props.max_engine_clk_fcompute = - amdgpu_amdkfd_get_max_engine_clock_in_mhz(dev->gpu->kgd); + amdgpu_amdkfd_get_max_engine_clock_in_mhz(dev->gpu->adev); 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; + if (gpu->xcp) + dev->node_props.drm_render_minor = gpu->xcp->ddev->render->index; + else + dev->node_props.drm_render_minor = + gpu->kfd->shared_resources.drm_render_minor; + + dev->node_props.hive_id = gpu->kfd->hive_id; + dev->node_props.num_sdma_engines = kfd_get_num_sdma_engines(gpu); dev->node_props.num_sdma_xgmi_engines = - gpu->device_info->num_xgmi_sdma_engines; + kfd_get_num_xgmi_sdma_engines(gpu); dev->node_props.num_sdma_queues_per_engine = - gpu->device_info->num_sdma_queues_per_engine; + gpu->kfd->device_info.num_sdma_queues_per_engine - + gpu->kfd->device_info.num_reserved_sdma_queues_per_engine; dev->node_props.num_gws = (dev->gpu->gws && dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ? - amdgpu_amdkfd_get_num_gws(dev->gpu->kgd) : 0; + dev->gpu->adev->gds.gws_size : 0; dev->node_props.num_cp_queues = get_cp_queues_num(dev->gpu->dqm); kfd_fill_mem_clk_max_info(dev); kfd_fill_iolink_non_crat_info(dev); - switch (dev->gpu->device_info->asic_family) { + switch (dev->gpu->adev->asic_type) { case CHIP_KAVERI: case CHIP_HAWAII: case CHIP_TONGA: @@ -1408,94 +2142,146 @@ int kfd_topology_add_device(struct kfd_dev *gpu) 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_ALDEBARAN: - case CHIP_NAVI10: - case CHIP_NAVI12: - case CHIP_NAVI14: - case CHIP_SIENNA_CICHLID: - case CHIP_NAVY_FLOUNDER: - case CHIP_VANGOGH: - case CHIP_DIMGREY_CAVEFISH: - case CHIP_BEIGE_GOBY: - case CHIP_YELLOW_CARP: - 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); + if (KFD_GC_VERSION(dev->gpu) < IP_VERSION(9, 0, 1)) + WARN(1, "Unexpected ASIC family %u", + dev->gpu->adev->asic_type); + else + kfd_topology_set_capabilities(dev); } /* - * Overwrite ATS capability according to needs_iommu_device to fix - * potential missing corresponding bit in CRAT of BIOS. - */ - if (dev->gpu->use_iommu_v2) - dev->node_props.capability |= HSA_CAP_ATS_PRESENT; - else - dev->node_props.capability &= ~HSA_CAP_ATS_PRESENT; + * Overwrite ATS capability according to needs_iommu_device to fix + * potential missing corresponding bit in CRAT of BIOS. + */ + 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) { + if (dev->gpu->adev->asic_type == CHIP_CARRIZO) { dev->node_props.simd_count = - cu_info.simd_per_cu * cu_info.cu_active_number; + cu_info->simd_per_cu * cu_info->number; dev->node_props.max_waves_per_simd = 10; } - adev = (struct amdgpu_device *)(dev->gpu->kgd); /* kfd only concerns sram ecc on GFX and HBM ecc on UMC */ dev->node_props.capability |= - ((adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__GFX)) != 0) ? + ((dev->gpu->adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__GFX)) != 0) ? HSA_CAP_SRAM_EDCSUPPORTED : 0; - dev->node_props.capability |= ((adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__UMC)) != 0) ? + dev->node_props.capability |= + ((dev->gpu->adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__UMC)) != 0) ? HSA_CAP_MEM_EDCSUPPORTED : 0; - if (adev->asic_type != CHIP_VEGA10) - dev->node_props.capability |= (adev->ras_enabled != 0) ? + if (KFD_GC_VERSION(dev->gpu) != IP_VERSION(9, 0, 1)) + dev->node_props.capability |= (dev->gpu->adev->ras_enabled != 0) ? HSA_CAP_RASEVENTNOTIFY : 0; - if (KFD_IS_SVM_API_SUPPORTED(adev->kfd.dev)) + if (KFD_IS_SVM_API_SUPPORTED(dev->gpu->adev)) dev->node_props.capability |= HSA_CAP_SVMAPI_SUPPORTED; + if (dev->gpu->adev->gmc.is_app_apu || + dev->gpu->adev->gmc.xgmi.connected_to_cpu) + dev->node_props.capability |= HSA_CAP_FLAGS_COHERENTHOSTACCESS; + + kfd_queue_ctx_save_restore_size(dev); + kfd_debug_print_topology(); - if (!res) - kfd_notify_gpu_change(gpu_id, 1); -err: - kfd_destroy_crat_image(crat_image); - return res; + kfd_notify_gpu_change(gpu_id, 1); + + return 0; } -int kfd_topology_remove_device(struct kfd_dev *gpu) +/** + * kfd_topology_update_io_links() - Update IO links after device removal. + * @proximity_domain: Proximity domain value of the dev being removed. + * + * The topology list currently is arranged in increasing order of + * proximity domain. + * + * Two things need to be done when a device is removed: + * 1. All the IO links to this device need to be removed. + * 2. All nodes after the current device node need to move + * up once this device node is removed from the topology + * list. As a result, the proximity domain values for + * all nodes after the node being deleted reduce by 1. + * This would also cause the proximity domain values for + * io links to be updated based on new proximity domain + * values. + * + * Context: The caller must hold write topology_lock. + */ +static void kfd_topology_update_io_links(int proximity_domain) +{ + struct kfd_topology_device *dev; + struct kfd_iolink_properties *iolink, *p2plink, *tmp; + + list_for_each_entry(dev, &topology_device_list, list) { + if (dev->proximity_domain > proximity_domain) + dev->proximity_domain--; + + list_for_each_entry_safe(iolink, tmp, &dev->io_link_props, list) { + /* + * If there is an io link to the dev being deleted + * then remove that IO link also. + */ + if (iolink->node_to == proximity_domain) { + list_del(&iolink->list); + dev->node_props.io_links_count--; + } else { + if (iolink->node_from > proximity_domain) + iolink->node_from--; + if (iolink->node_to > proximity_domain) + iolink->node_to--; + } + } + + list_for_each_entry_safe(p2plink, tmp, &dev->p2p_link_props, list) { + /* + * If there is a p2p link to the dev being deleted + * then remove that p2p link also. + */ + if (p2plink->node_to == proximity_domain) { + list_del(&p2plink->list); + dev->node_props.p2p_links_count--; + } else { + if (p2plink->node_from > proximity_domain) + p2plink->node_from--; + if (p2plink->node_to > proximity_domain) + p2plink->node_to--; + } + } + } +} + +int kfd_topology_remove_device(struct kfd_node *gpu) { struct kfd_topology_device *dev, *tmp; uint32_t gpu_id; int res = -ENODEV; + int i = 0; down_write(&topology_lock); - list_for_each_entry_safe(dev, tmp, &topology_device_list, list) + 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--; + kfd_topology_update_io_links(i); + topology_crat_proximity_domain = sys_props.num_devices-1; + sys_props.generation_count++; res = 0; if (kfd_topology_update_sysfs() < 0) kfd_topology_release_sysfs(); break; } + i++; + } up_write(&topology_lock); @@ -1511,7 +2297,7 @@ int kfd_topology_remove_device(struct kfd_dev *gpu) * 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) +int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_node **kdev) { struct kfd_topology_device *top_dev; @@ -1546,7 +2332,7 @@ static int kfd_cpumask_to_apic_id(const struct cpumask *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; + return cpu_data(first_cpu_of_numa_node).topo.apicid; #else return first_cpu_of_numa_node; #endif @@ -1565,29 +2351,6 @@ int kfd_numa_node_to_apic_id(int numa_node_id) return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id)); } -void kfd_double_confirm_iommu_support(struct kfd_dev *gpu) -{ - struct kfd_topology_device *dev; - - gpu->use_iommu_v2 = false; - - if (!gpu->device_info->needs_iommu_device) - return; - - down_read(&topology_lock); - - /* Only use IOMMUv2 if there is an APU topology node with no GPU - * assigned yet. This GPU will be assigned to it. - */ - list_for_each_entry(dev, &topology_device_list, list) - if (dev->node_props.cpu_cores_count && - dev->node_props.simd_count && - !dev->gpu) - gpu->use_iommu_v2 = true; - - up_read(&topology_lock); -} - #if defined(CONFIG_DEBUG_FS) int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data) @@ -1630,7 +2393,7 @@ int kfd_debugfs_rls_by_device(struct seq_file *m, void *data) } seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id); - r = pm_debugfs_runlist(m, &dev->gpu->dqm->packets); + r = pm_debugfs_runlist(m, &dev->gpu->dqm->packet_mgr); if (r) break; } |