mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 08:04:58 +07:00
7c9b717196
Populate DRM render device minor in kfd topology Signed-off-by: Oak Zeng <Oak.Zeng@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
1409 lines
38 KiB
C
1409 lines
38 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/errno.h>
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#include <linux/acpi.h>
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#include <linux/hash.h>
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#include <linux/cpufreq.h>
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#include <linux/log2.h>
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#include <linux/dmi.h>
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#include <linux/atomic.h>
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#include "kfd_priv.h"
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#include "kfd_crat.h"
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#include "kfd_topology.h"
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#include "kfd_device_queue_manager.h"
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#include "kfd_iommu.h"
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/* topology_device_list - Master list of all topology devices */
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static struct list_head topology_device_list;
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static struct kfd_system_properties sys_props;
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static DECLARE_RWSEM(topology_lock);
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static atomic_t topology_crat_proximity_domain;
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struct kfd_topology_device *kfd_topology_device_by_proximity_domain(
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uint32_t proximity_domain)
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{
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struct kfd_topology_device *top_dev;
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struct kfd_topology_device *device = NULL;
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down_read(&topology_lock);
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list_for_each_entry(top_dev, &topology_device_list, list)
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if (top_dev->proximity_domain == proximity_domain) {
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device = top_dev;
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break;
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}
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up_read(&topology_lock);
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return device;
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}
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struct kfd_dev *kfd_device_by_id(uint32_t gpu_id)
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{
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struct kfd_topology_device *top_dev;
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struct kfd_dev *device = NULL;
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down_read(&topology_lock);
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list_for_each_entry(top_dev, &topology_device_list, list)
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if (top_dev->gpu_id == gpu_id) {
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device = top_dev->gpu;
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break;
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}
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up_read(&topology_lock);
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return device;
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}
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struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev)
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{
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struct kfd_topology_device *top_dev;
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struct kfd_dev *device = NULL;
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down_read(&topology_lock);
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list_for_each_entry(top_dev, &topology_device_list, list)
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if (top_dev->gpu->pdev == pdev) {
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device = top_dev->gpu;
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break;
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}
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up_read(&topology_lock);
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return device;
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}
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/* Called with write topology_lock acquired */
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static void kfd_release_topology_device(struct kfd_topology_device *dev)
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{
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struct kfd_mem_properties *mem;
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struct kfd_cache_properties *cache;
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struct kfd_iolink_properties *iolink;
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struct kfd_perf_properties *perf;
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list_del(&dev->list);
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while (dev->mem_props.next != &dev->mem_props) {
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mem = container_of(dev->mem_props.next,
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struct kfd_mem_properties, list);
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list_del(&mem->list);
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kfree(mem);
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}
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while (dev->cache_props.next != &dev->cache_props) {
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cache = container_of(dev->cache_props.next,
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struct kfd_cache_properties, list);
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list_del(&cache->list);
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kfree(cache);
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}
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while (dev->io_link_props.next != &dev->io_link_props) {
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iolink = container_of(dev->io_link_props.next,
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struct kfd_iolink_properties, list);
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list_del(&iolink->list);
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kfree(iolink);
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}
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while (dev->perf_props.next != &dev->perf_props) {
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perf = container_of(dev->perf_props.next,
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struct kfd_perf_properties, list);
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list_del(&perf->list);
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kfree(perf);
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}
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kfree(dev);
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}
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void kfd_release_topology_device_list(struct list_head *device_list)
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{
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struct kfd_topology_device *dev;
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while (!list_empty(device_list)) {
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dev = list_first_entry(device_list,
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struct kfd_topology_device, list);
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kfd_release_topology_device(dev);
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}
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}
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static void kfd_release_live_view(void)
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{
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kfd_release_topology_device_list(&topology_device_list);
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memset(&sys_props, 0, sizeof(sys_props));
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}
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struct kfd_topology_device *kfd_create_topology_device(
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struct list_head *device_list)
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{
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struct kfd_topology_device *dev;
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dev = kfd_alloc_struct(dev);
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if (!dev) {
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pr_err("No memory to allocate a topology device");
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return NULL;
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}
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INIT_LIST_HEAD(&dev->mem_props);
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INIT_LIST_HEAD(&dev->cache_props);
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INIT_LIST_HEAD(&dev->io_link_props);
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INIT_LIST_HEAD(&dev->perf_props);
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list_add_tail(&dev->list, device_list);
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return dev;
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}
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#define sysfs_show_gen_prop(buffer, fmt, ...) \
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snprintf(buffer, PAGE_SIZE, "%s"fmt, buffer, __VA_ARGS__)
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#define sysfs_show_32bit_prop(buffer, name, value) \
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sysfs_show_gen_prop(buffer, "%s %u\n", name, value)
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#define sysfs_show_64bit_prop(buffer, name, value) \
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sysfs_show_gen_prop(buffer, "%s %llu\n", name, value)
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#define sysfs_show_32bit_val(buffer, value) \
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sysfs_show_gen_prop(buffer, "%u\n", value)
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#define sysfs_show_str_val(buffer, value) \
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sysfs_show_gen_prop(buffer, "%s\n", value)
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static ssize_t sysprops_show(struct kobject *kobj, struct attribute *attr,
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char *buffer)
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{
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ssize_t ret;
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/* Making sure that the buffer is an empty string */
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buffer[0] = 0;
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if (attr == &sys_props.attr_genid) {
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ret = sysfs_show_32bit_val(buffer, sys_props.generation_count);
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} else if (attr == &sys_props.attr_props) {
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sysfs_show_64bit_prop(buffer, "platform_oem",
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sys_props.platform_oem);
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sysfs_show_64bit_prop(buffer, "platform_id",
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sys_props.platform_id);
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ret = sysfs_show_64bit_prop(buffer, "platform_rev",
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sys_props.platform_rev);
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} else {
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ret = -EINVAL;
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}
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return ret;
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}
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static void kfd_topology_kobj_release(struct kobject *kobj)
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{
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kfree(kobj);
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}
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static const struct sysfs_ops sysprops_ops = {
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.show = sysprops_show,
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};
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static struct kobj_type sysprops_type = {
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.release = kfd_topology_kobj_release,
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.sysfs_ops = &sysprops_ops,
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};
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static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr,
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char *buffer)
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{
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ssize_t ret;
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struct kfd_iolink_properties *iolink;
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/* Making sure that the buffer is an empty string */
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buffer[0] = 0;
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iolink = container_of(attr, struct kfd_iolink_properties, attr);
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sysfs_show_32bit_prop(buffer, "type", iolink->iolink_type);
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sysfs_show_32bit_prop(buffer, "version_major", iolink->ver_maj);
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sysfs_show_32bit_prop(buffer, "version_minor", iolink->ver_min);
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sysfs_show_32bit_prop(buffer, "node_from", iolink->node_from);
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sysfs_show_32bit_prop(buffer, "node_to", iolink->node_to);
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sysfs_show_32bit_prop(buffer, "weight", iolink->weight);
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sysfs_show_32bit_prop(buffer, "min_latency", iolink->min_latency);
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sysfs_show_32bit_prop(buffer, "max_latency", iolink->max_latency);
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sysfs_show_32bit_prop(buffer, "min_bandwidth", iolink->min_bandwidth);
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sysfs_show_32bit_prop(buffer, "max_bandwidth", iolink->max_bandwidth);
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sysfs_show_32bit_prop(buffer, "recommended_transfer_size",
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iolink->rec_transfer_size);
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ret = sysfs_show_32bit_prop(buffer, "flags", iolink->flags);
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return ret;
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}
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static const struct sysfs_ops iolink_ops = {
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.show = iolink_show,
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};
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static struct kobj_type iolink_type = {
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.release = kfd_topology_kobj_release,
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.sysfs_ops = &iolink_ops,
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};
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static ssize_t mem_show(struct kobject *kobj, struct attribute *attr,
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char *buffer)
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{
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ssize_t ret;
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struct kfd_mem_properties *mem;
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/* Making sure that the buffer is an empty string */
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buffer[0] = 0;
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mem = container_of(attr, struct kfd_mem_properties, attr);
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sysfs_show_32bit_prop(buffer, "heap_type", mem->heap_type);
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sysfs_show_64bit_prop(buffer, "size_in_bytes", mem->size_in_bytes);
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sysfs_show_32bit_prop(buffer, "flags", mem->flags);
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sysfs_show_32bit_prop(buffer, "width", mem->width);
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ret = sysfs_show_32bit_prop(buffer, "mem_clk_max", mem->mem_clk_max);
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return ret;
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}
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static const struct sysfs_ops mem_ops = {
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.show = mem_show,
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};
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static struct kobj_type mem_type = {
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.release = kfd_topology_kobj_release,
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.sysfs_ops = &mem_ops,
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};
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static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr,
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char *buffer)
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{
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ssize_t ret;
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uint32_t i, j;
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struct kfd_cache_properties *cache;
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/* Making sure that the buffer is an empty string */
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buffer[0] = 0;
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cache = container_of(attr, struct kfd_cache_properties, attr);
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sysfs_show_32bit_prop(buffer, "processor_id_low",
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cache->processor_id_low);
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sysfs_show_32bit_prop(buffer, "level", cache->cache_level);
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sysfs_show_32bit_prop(buffer, "size", cache->cache_size);
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sysfs_show_32bit_prop(buffer, "cache_line_size", cache->cacheline_size);
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sysfs_show_32bit_prop(buffer, "cache_lines_per_tag",
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cache->cachelines_per_tag);
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sysfs_show_32bit_prop(buffer, "association", cache->cache_assoc);
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sysfs_show_32bit_prop(buffer, "latency", cache->cache_latency);
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sysfs_show_32bit_prop(buffer, "type", cache->cache_type);
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snprintf(buffer, PAGE_SIZE, "%ssibling_map ", buffer);
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for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++)
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for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) {
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/* Check each bit */
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if (cache->sibling_map[i] & (1 << j))
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ret = snprintf(buffer, PAGE_SIZE,
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"%s%d%s", buffer, 1, ",");
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else
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ret = snprintf(buffer, PAGE_SIZE,
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"%s%d%s", buffer, 0, ",");
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}
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/* Replace the last "," with end of line */
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*(buffer + strlen(buffer) - 1) = 0xA;
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return ret;
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}
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static const struct sysfs_ops cache_ops = {
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.show = kfd_cache_show,
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};
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static struct kobj_type cache_type = {
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.release = kfd_topology_kobj_release,
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.sysfs_ops = &cache_ops,
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};
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/****** Sysfs of Performance Counters ******/
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struct kfd_perf_attr {
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struct kobj_attribute attr;
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uint32_t data;
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};
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static ssize_t perf_show(struct kobject *kobj, struct kobj_attribute *attrs,
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char *buf)
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{
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struct kfd_perf_attr *attr;
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buf[0] = 0;
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attr = container_of(attrs, struct kfd_perf_attr, attr);
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if (!attr->data) /* invalid data for PMC */
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return 0;
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else
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return sysfs_show_32bit_val(buf, attr->data);
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}
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#define KFD_PERF_DESC(_name, _data) \
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{ \
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.attr = __ATTR(_name, 0444, perf_show, NULL), \
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.data = _data, \
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}
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static struct kfd_perf_attr perf_attr_iommu[] = {
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KFD_PERF_DESC(max_concurrent, 0),
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KFD_PERF_DESC(num_counters, 0),
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KFD_PERF_DESC(counter_ids, 0),
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};
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/****************************************/
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static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
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char *buffer)
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{
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struct kfd_topology_device *dev;
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char public_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE];
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uint32_t i;
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uint32_t log_max_watch_addr;
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/* Making sure that the buffer is an empty string */
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buffer[0] = 0;
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if (strcmp(attr->name, "gpu_id") == 0) {
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dev = container_of(attr, struct kfd_topology_device,
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attr_gpuid);
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return sysfs_show_32bit_val(buffer, dev->gpu_id);
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}
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if (strcmp(attr->name, "name") == 0) {
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dev = container_of(attr, struct kfd_topology_device,
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attr_name);
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for (i = 0; i < KFD_TOPOLOGY_PUBLIC_NAME_SIZE; i++) {
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public_name[i] =
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(char)dev->node_props.marketing_name[i];
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if (dev->node_props.marketing_name[i] == 0)
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break;
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}
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public_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE-1] = 0x0;
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return sysfs_show_str_val(buffer, public_name);
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}
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dev = container_of(attr, struct kfd_topology_device,
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attr_props);
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sysfs_show_32bit_prop(buffer, "cpu_cores_count",
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dev->node_props.cpu_cores_count);
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sysfs_show_32bit_prop(buffer, "simd_count",
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dev->node_props.simd_count);
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sysfs_show_32bit_prop(buffer, "mem_banks_count",
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dev->node_props.mem_banks_count);
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sysfs_show_32bit_prop(buffer, "caches_count",
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dev->node_props.caches_count);
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sysfs_show_32bit_prop(buffer, "io_links_count",
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dev->node_props.io_links_count);
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sysfs_show_32bit_prop(buffer, "cpu_core_id_base",
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dev->node_props.cpu_core_id_base);
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sysfs_show_32bit_prop(buffer, "simd_id_base",
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dev->node_props.simd_id_base);
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sysfs_show_32bit_prop(buffer, "max_waves_per_simd",
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dev->node_props.max_waves_per_simd);
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sysfs_show_32bit_prop(buffer, "lds_size_in_kb",
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dev->node_props.lds_size_in_kb);
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sysfs_show_32bit_prop(buffer, "gds_size_in_kb",
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dev->node_props.gds_size_in_kb);
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sysfs_show_32bit_prop(buffer, "wave_front_size",
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dev->node_props.wave_front_size);
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sysfs_show_32bit_prop(buffer, "array_count",
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dev->node_props.array_count);
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sysfs_show_32bit_prop(buffer, "simd_arrays_per_engine",
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dev->node_props.simd_arrays_per_engine);
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sysfs_show_32bit_prop(buffer, "cu_per_simd_array",
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dev->node_props.cu_per_simd_array);
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sysfs_show_32bit_prop(buffer, "simd_per_cu",
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dev->node_props.simd_per_cu);
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sysfs_show_32bit_prop(buffer, "max_slots_scratch_cu",
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dev->node_props.max_slots_scratch_cu);
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sysfs_show_32bit_prop(buffer, "vendor_id",
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dev->node_props.vendor_id);
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sysfs_show_32bit_prop(buffer, "device_id",
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dev->node_props.device_id);
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sysfs_show_32bit_prop(buffer, "location_id",
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dev->node_props.location_id);
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sysfs_show_32bit_prop(buffer, "drm_render_minor",
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dev->node_props.drm_render_minor);
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if (dev->gpu) {
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log_max_watch_addr =
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__ilog2_u32(dev->gpu->device_info->num_of_watch_points);
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if (log_max_watch_addr) {
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dev->node_props.capability |=
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HSA_CAP_WATCH_POINTS_SUPPORTED;
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dev->node_props.capability |=
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((log_max_watch_addr <<
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HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT) &
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HSA_CAP_WATCH_POINTS_TOTALBITS_MASK);
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}
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|
if (dev->gpu->device_info->asic_family == CHIP_TONGA)
|
|
dev->node_props.capability |=
|
|
HSA_CAP_AQL_QUEUE_DOUBLE_MAP;
|
|
|
|
sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute",
|
|
dev->node_props.max_engine_clk_fcompute);
|
|
|
|
sysfs_show_64bit_prop(buffer, "local_mem_size",
|
|
(unsigned long long int) 0);
|
|
|
|
sysfs_show_32bit_prop(buffer, "fw_version",
|
|
dev->gpu->kfd2kgd->get_fw_version(
|
|
dev->gpu->kgd,
|
|
KGD_ENGINE_MEC1));
|
|
sysfs_show_32bit_prop(buffer, "capability",
|
|
dev->node_props.capability);
|
|
}
|
|
|
|
return sysfs_show_32bit_prop(buffer, "max_engine_clk_ccompute",
|
|
cpufreq_quick_get_max(0)/1000);
|
|
}
|
|
|
|
static const struct sysfs_ops node_ops = {
|
|
.show = node_show,
|
|
};
|
|
|
|
static struct kobj_type node_type = {
|
|
.release = kfd_topology_kobj_release,
|
|
.sysfs_ops = &node_ops,
|
|
};
|
|
|
|
static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr)
|
|
{
|
|
sysfs_remove_file(kobj, attr);
|
|
kobject_del(kobj);
|
|
kobject_put(kobj);
|
|
}
|
|
|
|
static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev)
|
|
{
|
|
struct kfd_iolink_properties *iolink;
|
|
struct kfd_cache_properties *cache;
|
|
struct kfd_mem_properties *mem;
|
|
struct kfd_perf_properties *perf;
|
|
|
|
if (dev->kobj_iolink) {
|
|
list_for_each_entry(iolink, &dev->io_link_props, list)
|
|
if (iolink->kobj) {
|
|
kfd_remove_sysfs_file(iolink->kobj,
|
|
&iolink->attr);
|
|
iolink->kobj = NULL;
|
|
}
|
|
kobject_del(dev->kobj_iolink);
|
|
kobject_put(dev->kobj_iolink);
|
|
dev->kobj_iolink = NULL;
|
|
}
|
|
|
|
if (dev->kobj_cache) {
|
|
list_for_each_entry(cache, &dev->cache_props, list)
|
|
if (cache->kobj) {
|
|
kfd_remove_sysfs_file(cache->kobj,
|
|
&cache->attr);
|
|
cache->kobj = NULL;
|
|
}
|
|
kobject_del(dev->kobj_cache);
|
|
kobject_put(dev->kobj_cache);
|
|
dev->kobj_cache = NULL;
|
|
}
|
|
|
|
if (dev->kobj_mem) {
|
|
list_for_each_entry(mem, &dev->mem_props, list)
|
|
if (mem->kobj) {
|
|
kfd_remove_sysfs_file(mem->kobj, &mem->attr);
|
|
mem->kobj = NULL;
|
|
}
|
|
kobject_del(dev->kobj_mem);
|
|
kobject_put(dev->kobj_mem);
|
|
dev->kobj_mem = NULL;
|
|
}
|
|
|
|
if (dev->kobj_perf) {
|
|
list_for_each_entry(perf, &dev->perf_props, list) {
|
|
kfree(perf->attr_group);
|
|
perf->attr_group = NULL;
|
|
}
|
|
kobject_del(dev->kobj_perf);
|
|
kobject_put(dev->kobj_perf);
|
|
dev->kobj_perf = NULL;
|
|
}
|
|
|
|
if (dev->kobj_node) {
|
|
sysfs_remove_file(dev->kobj_node, &dev->attr_gpuid);
|
|
sysfs_remove_file(dev->kobj_node, &dev->attr_name);
|
|
sysfs_remove_file(dev->kobj_node, &dev->attr_props);
|
|
kobject_del(dev->kobj_node);
|
|
kobject_put(dev->kobj_node);
|
|
dev->kobj_node = NULL;
|
|
}
|
|
}
|
|
|
|
static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
|
|
uint32_t id)
|
|
{
|
|
struct kfd_iolink_properties *iolink;
|
|
struct kfd_cache_properties *cache;
|
|
struct kfd_mem_properties *mem;
|
|
struct kfd_perf_properties *perf;
|
|
int ret;
|
|
uint32_t i, num_attrs;
|
|
struct attribute **attrs;
|
|
|
|
if (WARN_ON(dev->kobj_node))
|
|
return -EEXIST;
|
|
|
|
/*
|
|
* Creating the sysfs folders
|
|
*/
|
|
dev->kobj_node = kfd_alloc_struct(dev->kobj_node);
|
|
if (!dev->kobj_node)
|
|
return -ENOMEM;
|
|
|
|
ret = kobject_init_and_add(dev->kobj_node, &node_type,
|
|
sys_props.kobj_nodes, "%d", id);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node);
|
|
if (!dev->kobj_mem)
|
|
return -ENOMEM;
|
|
|
|
dev->kobj_cache = kobject_create_and_add("caches", dev->kobj_node);
|
|
if (!dev->kobj_cache)
|
|
return -ENOMEM;
|
|
|
|
dev->kobj_iolink = kobject_create_and_add("io_links", dev->kobj_node);
|
|
if (!dev->kobj_iolink)
|
|
return -ENOMEM;
|
|
|
|
dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node);
|
|
if (!dev->kobj_perf)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Creating sysfs files for node properties
|
|
*/
|
|
dev->attr_gpuid.name = "gpu_id";
|
|
dev->attr_gpuid.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&dev->attr_gpuid);
|
|
dev->attr_name.name = "name";
|
|
dev->attr_name.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&dev->attr_name);
|
|
dev->attr_props.name = "properties";
|
|
dev->attr_props.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&dev->attr_props);
|
|
ret = sysfs_create_file(dev->kobj_node, &dev->attr_gpuid);
|
|
if (ret < 0)
|
|
return ret;
|
|
ret = sysfs_create_file(dev->kobj_node, &dev->attr_name);
|
|
if (ret < 0)
|
|
return ret;
|
|
ret = sysfs_create_file(dev->kobj_node, &dev->attr_props);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
i = 0;
|
|
list_for_each_entry(mem, &dev->mem_props, list) {
|
|
mem->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
|
|
if (!mem->kobj)
|
|
return -ENOMEM;
|
|
ret = kobject_init_and_add(mem->kobj, &mem_type,
|
|
dev->kobj_mem, "%d", i);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
mem->attr.name = "properties";
|
|
mem->attr.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&mem->attr);
|
|
ret = sysfs_create_file(mem->kobj, &mem->attr);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
i = 0;
|
|
list_for_each_entry(cache, &dev->cache_props, list) {
|
|
cache->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
|
|
if (!cache->kobj)
|
|
return -ENOMEM;
|
|
ret = kobject_init_and_add(cache->kobj, &cache_type,
|
|
dev->kobj_cache, "%d", i);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
cache->attr.name = "properties";
|
|
cache->attr.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&cache->attr);
|
|
ret = sysfs_create_file(cache->kobj, &cache->attr);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
i = 0;
|
|
list_for_each_entry(iolink, &dev->io_link_props, list) {
|
|
iolink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
|
|
if (!iolink->kobj)
|
|
return -ENOMEM;
|
|
ret = kobject_init_and_add(iolink->kobj, &iolink_type,
|
|
dev->kobj_iolink, "%d", i);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
iolink->attr.name = "properties";
|
|
iolink->attr.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&iolink->attr);
|
|
ret = sysfs_create_file(iolink->kobj, &iolink->attr);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
/* All hardware blocks have the same number of attributes. */
|
|
num_attrs = ARRAY_SIZE(perf_attr_iommu);
|
|
list_for_each_entry(perf, &dev->perf_props, list) {
|
|
perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr)
|
|
* num_attrs + sizeof(struct attribute_group),
|
|
GFP_KERNEL);
|
|
if (!perf->attr_group)
|
|
return -ENOMEM;
|
|
|
|
attrs = (struct attribute **)(perf->attr_group + 1);
|
|
if (!strcmp(perf->block_name, "iommu")) {
|
|
/* Information of IOMMU's num_counters and counter_ids is shown
|
|
* under /sys/bus/event_source/devices/amd_iommu. We don't
|
|
* duplicate here.
|
|
*/
|
|
perf_attr_iommu[0].data = perf->max_concurrent;
|
|
for (i = 0; i < num_attrs; i++)
|
|
attrs[i] = &perf_attr_iommu[i].attr.attr;
|
|
}
|
|
perf->attr_group->name = perf->block_name;
|
|
perf->attr_group->attrs = attrs;
|
|
ret = sysfs_create_group(dev->kobj_perf, perf->attr_group);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called with write topology lock acquired */
|
|
static int kfd_build_sysfs_node_tree(void)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
int ret;
|
|
uint32_t i = 0;
|
|
|
|
list_for_each_entry(dev, &topology_device_list, list) {
|
|
ret = kfd_build_sysfs_node_entry(dev, i);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called with write topology lock acquired */
|
|
static void kfd_remove_sysfs_node_tree(void)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
|
|
list_for_each_entry(dev, &topology_device_list, list)
|
|
kfd_remove_sysfs_node_entry(dev);
|
|
}
|
|
|
|
static int kfd_topology_update_sysfs(void)
|
|
{
|
|
int ret;
|
|
|
|
pr_info("Creating topology SYSFS entries\n");
|
|
if (!sys_props.kobj_topology) {
|
|
sys_props.kobj_topology =
|
|
kfd_alloc_struct(sys_props.kobj_topology);
|
|
if (!sys_props.kobj_topology)
|
|
return -ENOMEM;
|
|
|
|
ret = kobject_init_and_add(sys_props.kobj_topology,
|
|
&sysprops_type, &kfd_device->kobj,
|
|
"topology");
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
sys_props.kobj_nodes = kobject_create_and_add("nodes",
|
|
sys_props.kobj_topology);
|
|
if (!sys_props.kobj_nodes)
|
|
return -ENOMEM;
|
|
|
|
sys_props.attr_genid.name = "generation_id";
|
|
sys_props.attr_genid.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&sys_props.attr_genid);
|
|
ret = sysfs_create_file(sys_props.kobj_topology,
|
|
&sys_props.attr_genid);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
sys_props.attr_props.name = "system_properties";
|
|
sys_props.attr_props.mode = KFD_SYSFS_FILE_MODE;
|
|
sysfs_attr_init(&sys_props.attr_props);
|
|
ret = sysfs_create_file(sys_props.kobj_topology,
|
|
&sys_props.attr_props);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
kfd_remove_sysfs_node_tree();
|
|
|
|
return kfd_build_sysfs_node_tree();
|
|
}
|
|
|
|
static void kfd_topology_release_sysfs(void)
|
|
{
|
|
kfd_remove_sysfs_node_tree();
|
|
if (sys_props.kobj_topology) {
|
|
sysfs_remove_file(sys_props.kobj_topology,
|
|
&sys_props.attr_genid);
|
|
sysfs_remove_file(sys_props.kobj_topology,
|
|
&sys_props.attr_props);
|
|
if (sys_props.kobj_nodes) {
|
|
kobject_del(sys_props.kobj_nodes);
|
|
kobject_put(sys_props.kobj_nodes);
|
|
sys_props.kobj_nodes = NULL;
|
|
}
|
|
kobject_del(sys_props.kobj_topology);
|
|
kobject_put(sys_props.kobj_topology);
|
|
sys_props.kobj_topology = NULL;
|
|
}
|
|
}
|
|
|
|
/* Called with write topology_lock acquired */
|
|
static void kfd_topology_update_device_list(struct list_head *temp_list,
|
|
struct list_head *master_list)
|
|
{
|
|
while (!list_empty(temp_list)) {
|
|
list_move_tail(temp_list->next, master_list);
|
|
sys_props.num_devices++;
|
|
}
|
|
}
|
|
|
|
static void kfd_debug_print_topology(void)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
|
|
down_read(&topology_lock);
|
|
|
|
dev = list_last_entry(&topology_device_list,
|
|
struct kfd_topology_device, list);
|
|
if (dev) {
|
|
if (dev->node_props.cpu_cores_count &&
|
|
dev->node_props.simd_count) {
|
|
pr_info("Topology: Add APU node [0x%0x:0x%0x]\n",
|
|
dev->node_props.device_id,
|
|
dev->node_props.vendor_id);
|
|
} else if (dev->node_props.cpu_cores_count)
|
|
pr_info("Topology: Add CPU node\n");
|
|
else if (dev->node_props.simd_count)
|
|
pr_info("Topology: Add dGPU node [0x%0x:0x%0x]\n",
|
|
dev->node_props.device_id,
|
|
dev->node_props.vendor_id);
|
|
}
|
|
up_read(&topology_lock);
|
|
}
|
|
|
|
/* Helper function for intializing platform_xx members of
|
|
* kfd_system_properties. Uses OEM info from the last CPU/APU node.
|
|
*/
|
|
static void kfd_update_system_properties(void)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
|
|
down_read(&topology_lock);
|
|
dev = list_last_entry(&topology_device_list,
|
|
struct kfd_topology_device, list);
|
|
if (dev) {
|
|
sys_props.platform_id =
|
|
(*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK;
|
|
sys_props.platform_oem = *((uint64_t *)dev->oem_table_id);
|
|
sys_props.platform_rev = dev->oem_revision;
|
|
}
|
|
up_read(&topology_lock);
|
|
}
|
|
|
|
static void find_system_memory(const struct dmi_header *dm,
|
|
void *private)
|
|
{
|
|
struct kfd_mem_properties *mem;
|
|
u16 mem_width, mem_clock;
|
|
struct kfd_topology_device *kdev =
|
|
(struct kfd_topology_device *)private;
|
|
const u8 *dmi_data = (const u8 *)(dm + 1);
|
|
|
|
if (dm->type == DMI_ENTRY_MEM_DEVICE && dm->length >= 0x15) {
|
|
mem_width = (u16)(*(const u16 *)(dmi_data + 0x6));
|
|
mem_clock = (u16)(*(const u16 *)(dmi_data + 0x11));
|
|
list_for_each_entry(mem, &kdev->mem_props, list) {
|
|
if (mem_width != 0xFFFF && mem_width != 0)
|
|
mem->width = mem_width;
|
|
if (mem_clock != 0)
|
|
mem->mem_clk_max = mem_clock;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Performance counters information is not part of CRAT but we would like to
|
|
* put them in the sysfs under topology directory for Thunk to get the data.
|
|
* This function is called before updating the sysfs.
|
|
*/
|
|
static int kfd_add_perf_to_topology(struct kfd_topology_device *kdev)
|
|
{
|
|
/* These are the only counters supported so far */
|
|
return kfd_iommu_add_perf_counters(kdev);
|
|
}
|
|
|
|
/* kfd_add_non_crat_information - Add information that is not currently
|
|
* defined in CRAT but is necessary for KFD topology
|
|
* @dev - topology device to which addition info is added
|
|
*/
|
|
static void kfd_add_non_crat_information(struct kfd_topology_device *kdev)
|
|
{
|
|
/* Check if CPU only node. */
|
|
if (!kdev->gpu) {
|
|
/* Add system memory information */
|
|
dmi_walk(find_system_memory, kdev);
|
|
}
|
|
/* TODO: For GPU node, rearrange code from kfd_topology_add_device */
|
|
}
|
|
|
|
/* kfd_is_acpi_crat_invalid - CRAT from ACPI is valid only for AMD APU devices.
|
|
* Ignore CRAT for all other devices. AMD APU is identified if both CPU
|
|
* and GPU cores are present.
|
|
* @device_list - topology device list created by parsing ACPI CRAT table.
|
|
* @return - TRUE if invalid, FALSE is valid.
|
|
*/
|
|
static bool kfd_is_acpi_crat_invalid(struct list_head *device_list)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
|
|
list_for_each_entry(dev, device_list, list) {
|
|
if (dev->node_props.cpu_cores_count &&
|
|
dev->node_props.simd_count)
|
|
return false;
|
|
}
|
|
pr_info("Ignoring ACPI CRAT on non-APU system\n");
|
|
return true;
|
|
}
|
|
|
|
int kfd_topology_init(void)
|
|
{
|
|
void *crat_image = NULL;
|
|
size_t image_size = 0;
|
|
int ret;
|
|
struct list_head temp_topology_device_list;
|
|
int cpu_only_node = 0;
|
|
struct kfd_topology_device *kdev;
|
|
int proximity_domain;
|
|
|
|
/* topology_device_list - Master list of all topology devices
|
|
* temp_topology_device_list - temporary list created while parsing CRAT
|
|
* or VCRAT. Once parsing is complete the contents of list is moved to
|
|
* topology_device_list
|
|
*/
|
|
|
|
/* Initialize the head for the both the lists */
|
|
INIT_LIST_HEAD(&topology_device_list);
|
|
INIT_LIST_HEAD(&temp_topology_device_list);
|
|
init_rwsem(&topology_lock);
|
|
|
|
memset(&sys_props, 0, sizeof(sys_props));
|
|
|
|
/* Proximity domains in ACPI CRAT tables start counting at
|
|
* 0. The same should be true for virtual CRAT tables created
|
|
* at this stage. GPUs added later in kfd_topology_add_device
|
|
* use a counter.
|
|
*/
|
|
proximity_domain = 0;
|
|
|
|
/*
|
|
* Get the CRAT image from the ACPI. If ACPI doesn't have one
|
|
* or if ACPI CRAT is invalid create a virtual CRAT.
|
|
* NOTE: The current implementation expects all AMD APUs to have
|
|
* CRAT. If no CRAT is available, it is assumed to be a CPU
|
|
*/
|
|
ret = kfd_create_crat_image_acpi(&crat_image, &image_size);
|
|
if (!ret) {
|
|
ret = kfd_parse_crat_table(crat_image,
|
|
&temp_topology_device_list,
|
|
proximity_domain);
|
|
if (ret ||
|
|
kfd_is_acpi_crat_invalid(&temp_topology_device_list)) {
|
|
kfd_release_topology_device_list(
|
|
&temp_topology_device_list);
|
|
kfd_destroy_crat_image(crat_image);
|
|
crat_image = NULL;
|
|
}
|
|
}
|
|
|
|
if (!crat_image) {
|
|
ret = kfd_create_crat_image_virtual(&crat_image, &image_size,
|
|
COMPUTE_UNIT_CPU, NULL,
|
|
proximity_domain);
|
|
cpu_only_node = 1;
|
|
if (ret) {
|
|
pr_err("Error creating VCRAT table for CPU\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = kfd_parse_crat_table(crat_image,
|
|
&temp_topology_device_list,
|
|
proximity_domain);
|
|
if (ret) {
|
|
pr_err("Error parsing VCRAT table for CPU\n");
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
kdev = list_first_entry(&temp_topology_device_list,
|
|
struct kfd_topology_device, list);
|
|
kfd_add_perf_to_topology(kdev);
|
|
|
|
down_write(&topology_lock);
|
|
kfd_topology_update_device_list(&temp_topology_device_list,
|
|
&topology_device_list);
|
|
atomic_set(&topology_crat_proximity_domain, sys_props.num_devices-1);
|
|
ret = kfd_topology_update_sysfs();
|
|
up_write(&topology_lock);
|
|
|
|
if (!ret) {
|
|
sys_props.generation_count++;
|
|
kfd_update_system_properties();
|
|
kfd_debug_print_topology();
|
|
pr_info("Finished initializing topology\n");
|
|
} else
|
|
pr_err("Failed to update topology in sysfs ret=%d\n", ret);
|
|
|
|
/* For nodes with GPU, this information gets added
|
|
* when GPU is detected (kfd_topology_add_device).
|
|
*/
|
|
if (cpu_only_node) {
|
|
/* Add additional information to CPU only node created above */
|
|
down_write(&topology_lock);
|
|
kdev = list_first_entry(&topology_device_list,
|
|
struct kfd_topology_device, list);
|
|
up_write(&topology_lock);
|
|
kfd_add_non_crat_information(kdev);
|
|
}
|
|
|
|
err:
|
|
kfd_destroy_crat_image(crat_image);
|
|
return ret;
|
|
}
|
|
|
|
void kfd_topology_shutdown(void)
|
|
{
|
|
down_write(&topology_lock);
|
|
kfd_topology_release_sysfs();
|
|
kfd_release_live_view();
|
|
up_write(&topology_lock);
|
|
}
|
|
|
|
static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu)
|
|
{
|
|
uint32_t hashout;
|
|
uint32_t buf[7];
|
|
uint64_t local_mem_size;
|
|
int i;
|
|
struct kfd_local_mem_info local_mem_info;
|
|
|
|
if (!gpu)
|
|
return 0;
|
|
|
|
gpu->kfd2kgd->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;
|
|
buf[2] = gpu->pdev->subsystem_device;
|
|
buf[3] = gpu->pdev->device;
|
|
buf[4] = gpu->pdev->bus->number;
|
|
buf[5] = lower_32_bits(local_mem_size);
|
|
buf[6] = upper_32_bits(local_mem_size);
|
|
|
|
for (i = 0, hashout = 0; i < 7; i++)
|
|
hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH);
|
|
|
|
return hashout;
|
|
}
|
|
/* kfd_assign_gpu - Attach @gpu to the correct kfd topology device. If
|
|
* the GPU device is not already present in the topology device
|
|
* list then return NULL. This means a new topology device has to
|
|
* be created for this GPU.
|
|
* TODO: Rather than assiging @gpu to first topology device withtout
|
|
* gpu attached, it will better to have more stringent check.
|
|
*/
|
|
static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
struct kfd_topology_device *out_dev = NULL;
|
|
|
|
down_write(&topology_lock);
|
|
list_for_each_entry(dev, &topology_device_list, list)
|
|
if (!dev->gpu && (dev->node_props.simd_count > 0)) {
|
|
dev->gpu = gpu;
|
|
out_dev = dev;
|
|
break;
|
|
}
|
|
up_write(&topology_lock);
|
|
return out_dev;
|
|
}
|
|
|
|
static void kfd_notify_gpu_change(uint32_t gpu_id, int arrival)
|
|
{
|
|
/*
|
|
* TODO: Generate an event for thunk about the arrival/removal
|
|
* of the GPU
|
|
*/
|
|
}
|
|
|
|
/* kfd_fill_mem_clk_max_info - Since CRAT doesn't have memory clock info,
|
|
* patch this after CRAT parsing.
|
|
*/
|
|
static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev)
|
|
{
|
|
struct kfd_mem_properties *mem;
|
|
struct kfd_local_mem_info local_mem_info;
|
|
|
|
if (!dev)
|
|
return;
|
|
|
|
/* Currently, amdgpu driver (amdgpu_mc) deals only with GPUs with
|
|
* single bank of VRAM local memory.
|
|
* for dGPUs - VCRAT reports only one bank of Local Memory
|
|
* for APUs - If CRAT from ACPI reports more than one bank, then
|
|
* all the banks will report the same mem_clk_max information
|
|
*/
|
|
dev->gpu->kfd2kgd->get_local_mem_info(dev->gpu->kgd,
|
|
&local_mem_info);
|
|
|
|
list_for_each_entry(mem, &dev->mem_props, list)
|
|
mem->mem_clk_max = local_mem_info.mem_clk_max;
|
|
}
|
|
|
|
static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
|
|
{
|
|
struct kfd_iolink_properties *link;
|
|
|
|
if (!dev || !dev->gpu)
|
|
return;
|
|
|
|
/* GPU only creates direck links so apply flags setting to all */
|
|
if (dev->gpu->device_info->asic_family == CHIP_HAWAII)
|
|
list_for_each_entry(link, &dev->io_link_props, list)
|
|
link->flags = CRAT_IOLINK_FLAGS_ENABLED |
|
|
CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT |
|
|
CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT;
|
|
}
|
|
|
|
int kfd_topology_add_device(struct kfd_dev *gpu)
|
|
{
|
|
uint32_t gpu_id;
|
|
struct kfd_topology_device *dev;
|
|
struct kfd_cu_info cu_info;
|
|
int res = 0;
|
|
struct list_head temp_topology_device_list;
|
|
void *crat_image = NULL;
|
|
size_t image_size = 0;
|
|
int proximity_domain;
|
|
|
|
INIT_LIST_HEAD(&temp_topology_device_list);
|
|
|
|
gpu_id = kfd_generate_gpu_id(gpu);
|
|
|
|
pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id);
|
|
|
|
proximity_domain = atomic_inc_return(&topology_crat_proximity_domain);
|
|
|
|
/* Check to see if this gpu device exists in the topology_device_list.
|
|
* If so, assign the gpu to that device,
|
|
* else create a Virtual CRAT for this gpu device and then parse that
|
|
* CRAT to create a new topology device. Once created assign the gpu to
|
|
* that topology device
|
|
*/
|
|
dev = kfd_assign_gpu(gpu);
|
|
if (!dev) {
|
|
res = kfd_create_crat_image_virtual(&crat_image, &image_size,
|
|
COMPUTE_UNIT_GPU, gpu,
|
|
proximity_domain);
|
|
if (res) {
|
|
pr_err("Error creating VCRAT for GPU (ID: 0x%x)\n",
|
|
gpu_id);
|
|
return res;
|
|
}
|
|
res = kfd_parse_crat_table(crat_image,
|
|
&temp_topology_device_list,
|
|
proximity_domain);
|
|
if (res) {
|
|
pr_err("Error parsing VCRAT for GPU (ID: 0x%x)\n",
|
|
gpu_id);
|
|
goto err;
|
|
}
|
|
|
|
down_write(&topology_lock);
|
|
kfd_topology_update_device_list(&temp_topology_device_list,
|
|
&topology_device_list);
|
|
|
|
/* Update the SYSFS tree, since we added another topology
|
|
* device
|
|
*/
|
|
res = kfd_topology_update_sysfs();
|
|
up_write(&topology_lock);
|
|
|
|
if (!res)
|
|
sys_props.generation_count++;
|
|
else
|
|
pr_err("Failed to update GPU (ID: 0x%x) to sysfs topology. res=%d\n",
|
|
gpu_id, res);
|
|
dev = kfd_assign_gpu(gpu);
|
|
if (WARN_ON(!dev)) {
|
|
res = -ENODEV;
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
dev->gpu_id = gpu_id;
|
|
gpu->id = gpu_id;
|
|
|
|
/* TODO: Move the following lines to function
|
|
* kfd_add_non_crat_information
|
|
*/
|
|
|
|
/* Fill-in additional information that is not available in CRAT but
|
|
* needed for the topology
|
|
*/
|
|
|
|
dev->gpu->kfd2kgd->get_cu_info(dev->gpu->kgd, &cu_info);
|
|
dev->node_props.simd_arrays_per_engine =
|
|
cu_info.num_shader_arrays_per_engine;
|
|
|
|
dev->node_props.vendor_id = gpu->pdev->vendor;
|
|
dev->node_props.device_id = gpu->pdev->device;
|
|
dev->node_props.location_id = PCI_DEVID(gpu->pdev->bus->number,
|
|
gpu->pdev->devfn);
|
|
dev->node_props.max_engine_clk_fcompute =
|
|
dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz(dev->gpu->kgd);
|
|
dev->node_props.max_engine_clk_ccompute =
|
|
cpufreq_quick_get_max(0) / 1000;
|
|
dev->node_props.drm_render_minor =
|
|
gpu->shared_resources.drm_render_minor;
|
|
|
|
kfd_fill_mem_clk_max_info(dev);
|
|
kfd_fill_iolink_non_crat_info(dev);
|
|
|
|
switch (dev->gpu->device_info->asic_family) {
|
|
case CHIP_KAVERI:
|
|
case CHIP_HAWAII:
|
|
case CHIP_TONGA:
|
|
dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_PRE_1_0 <<
|
|
HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
|
|
HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
|
|
break;
|
|
case CHIP_CARRIZO:
|
|
case CHIP_FIJI:
|
|
case CHIP_POLARIS10:
|
|
case CHIP_POLARIS11:
|
|
pr_debug("Adding doorbell packet type capability\n");
|
|
dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_1_0 <<
|
|
HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
|
|
HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
|
|
break;
|
|
default:
|
|
WARN(1, "Unexpected ASIC family %u",
|
|
dev->gpu->device_info->asic_family);
|
|
}
|
|
|
|
/* 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
|
|
* capability flag: Carrizo CRAT doesn't report IOMMU flags
|
|
*/
|
|
if (dev->gpu->device_info->asic_family == CHIP_CARRIZO) {
|
|
dev->node_props.simd_count =
|
|
cu_info.simd_per_cu * cu_info.cu_active_number;
|
|
dev->node_props.max_waves_per_simd = 10;
|
|
dev->node_props.capability |= HSA_CAP_ATS_PRESENT;
|
|
}
|
|
|
|
kfd_debug_print_topology();
|
|
|
|
if (!res)
|
|
kfd_notify_gpu_change(gpu_id, 1);
|
|
err:
|
|
kfd_destroy_crat_image(crat_image);
|
|
return res;
|
|
}
|
|
|
|
int kfd_topology_remove_device(struct kfd_dev *gpu)
|
|
{
|
|
struct kfd_topology_device *dev, *tmp;
|
|
uint32_t gpu_id;
|
|
int res = -ENODEV;
|
|
|
|
down_write(&topology_lock);
|
|
|
|
list_for_each_entry_safe(dev, tmp, &topology_device_list, list)
|
|
if (dev->gpu == gpu) {
|
|
gpu_id = dev->gpu_id;
|
|
kfd_remove_sysfs_node_entry(dev);
|
|
kfd_release_topology_device(dev);
|
|
sys_props.num_devices--;
|
|
res = 0;
|
|
if (kfd_topology_update_sysfs() < 0)
|
|
kfd_topology_release_sysfs();
|
|
break;
|
|
}
|
|
|
|
up_write(&topology_lock);
|
|
|
|
if (!res)
|
|
kfd_notify_gpu_change(gpu_id, 0);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* kfd_topology_enum_kfd_devices - Enumerate through all devices in KFD
|
|
* topology. If GPU device is found @idx, then valid kfd_dev pointer is
|
|
* returned through @kdev
|
|
* Return - 0: On success (@kdev will be NULL for non GPU nodes)
|
|
* -1: If end of list
|
|
*/
|
|
int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev)
|
|
{
|
|
|
|
struct kfd_topology_device *top_dev;
|
|
uint8_t device_idx = 0;
|
|
|
|
*kdev = NULL;
|
|
down_read(&topology_lock);
|
|
|
|
list_for_each_entry(top_dev, &topology_device_list, list) {
|
|
if (device_idx == idx) {
|
|
*kdev = top_dev->gpu;
|
|
up_read(&topology_lock);
|
|
return 0;
|
|
}
|
|
|
|
device_idx++;
|
|
}
|
|
|
|
up_read(&topology_lock);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
static int kfd_cpumask_to_apic_id(const struct cpumask *cpumask)
|
|
{
|
|
const struct cpuinfo_x86 *cpuinfo;
|
|
int first_cpu_of_numa_node;
|
|
|
|
if (!cpumask || cpumask == cpu_none_mask)
|
|
return -1;
|
|
first_cpu_of_numa_node = cpumask_first(cpumask);
|
|
if (first_cpu_of_numa_node >= nr_cpu_ids)
|
|
return -1;
|
|
cpuinfo = &cpu_data(first_cpu_of_numa_node);
|
|
|
|
return cpuinfo->apicid;
|
|
}
|
|
|
|
/* kfd_numa_node_to_apic_id - Returns the APIC ID of the first logical processor
|
|
* of the given NUMA node (numa_node_id)
|
|
* Return -1 on failure
|
|
*/
|
|
int kfd_numa_node_to_apic_id(int numa_node_id)
|
|
{
|
|
if (numa_node_id == -1) {
|
|
pr_warn("Invalid NUMA Node. Use online CPU mask\n");
|
|
return kfd_cpumask_to_apic_id(cpu_online_mask);
|
|
}
|
|
return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id));
|
|
}
|
|
|
|
#if defined(CONFIG_DEBUG_FS)
|
|
|
|
int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
unsigned int i = 0;
|
|
int r = 0;
|
|
|
|
down_read(&topology_lock);
|
|
|
|
list_for_each_entry(dev, &topology_device_list, list) {
|
|
if (!dev->gpu) {
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
|
|
r = dqm_debugfs_hqds(m, dev->gpu->dqm);
|
|
if (r)
|
|
break;
|
|
}
|
|
|
|
up_read(&topology_lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
int kfd_debugfs_rls_by_device(struct seq_file *m, void *data)
|
|
{
|
|
struct kfd_topology_device *dev;
|
|
unsigned int i = 0;
|
|
int r = 0;
|
|
|
|
down_read(&topology_lock);
|
|
|
|
list_for_each_entry(dev, &topology_device_list, list) {
|
|
if (!dev->gpu) {
|
|
i++;
|
|
continue;
|
|
}
|
|
|
|
seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
|
|
r = pm_debugfs_runlist(m, &dev->gpu->dqm->packets);
|
|
if (r)
|
|
break;
|
|
}
|
|
|
|
up_read(&topology_lock);
|
|
|
|
return r;
|
|
}
|
|
|
|
#endif
|