diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
index 1181dfb279b8e0757933d8ee04cb20fdef6d5d6c..4412c2fc72ebe45cd35455d53790849b836b02b1 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
@@ -761,6 +761,7 @@ static int evict_process_queues_nocpsch(struct device_queue_manager *dqm,
pr_info_ratelimited("Evicting PASID 0x%x queues\n",
pdd->process->pasid);
+ pdd->last_evict_timestamp = get_jiffies_64();
/* Mark all queues as evicted. Deactivate all active queues on
* the qpd.
*/
@@ -826,6 +827,7 @@ static int evict_process_queues_cpsch(struct device_queue_manager *dqm,
qpd->mapped_gws_queue = false;
}
}
+ pdd->last_evict_timestamp = get_jiffies_64();
retval = execute_queues_cpsch(dqm,
qpd->is_debug ?
KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES :
@@ -845,6 +847,7 @@ static int restore_process_queues_nocpsch(struct device_queue_manager *dqm,
struct mqd_manager *mqd_mgr;
struct kfd_process_device *pdd;
uint64_t pd_base;
+ uint64_t eviction_duration;
int retval, ret = 0;
pdd = qpd_to_pdd(qpd);
@@ -912,6 +915,8 @@ static int restore_process_queues_nocpsch(struct device_queue_manager *dqm,
ret = retval;
}
qpd->evicted = 0;
+ eviction_duration = get_jiffies_64() - pdd->last_evict_timestamp;
+ atomic64_add(eviction_duration, &pdd->evict_duration_counter);
out:
if (mm)
mmput(mm);
@@ -925,6 +930,7 @@ static int restore_process_queues_cpsch(struct device_queue_manager *dqm,
struct queue *q;
struct kfd_process_device *pdd;
uint64_t pd_base;
+ uint64_t eviction_duration;
int retval = 0;
pdd = qpd_to_pdd(qpd);
@@ -963,6 +969,8 @@ static int restore_process_queues_cpsch(struct device_queue_manager *dqm,
KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0,
USE_DEFAULT_GRACE_PERIOD);
qpd->evicted = 0;
+ eviction_duration = get_jiffies_64() - pdd->last_evict_timestamp;
+ atomic64_add(eviction_duration, &pdd->evict_duration_counter);
out:
dqm_unlock(dqm);
return retval;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index 018c164c7c5c1c6d8290e999344f5b1a8883ea0d..5e18c27867302ddbb649c6c0d8555848b850ee53 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -723,7 +723,7 @@ enum kfd_pdd_bound {
PDD_BOUND_SUSPENDED,
};
-#define MAX_SYSFS_FILENAME_LEN 11
+#define MAX_SYSFS_FILENAME_LEN 15
/*
* SDMA counter runs at 100MHz frequency.
@@ -796,6 +796,13 @@ struct kfd_process_device {
uint64_t sdma_past_activity_counter;
struct attribute attr_sdma;
char sdma_filename[MAX_SYSFS_FILENAME_LEN];
+
+ /* Eviction activity tracking */
+ uint64_t last_evict_timestamp;
+ atomic64_t evict_duration_counter;
+ struct attribute attr_evict;
+
+ struct kobject *kobj_stats;
};
#define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 0f1ae3fc26712bc07f6e51ba0e27af85de45e74d..1465c3ff2dce77675370bb955acea84851183b4b 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -359,6 +359,26 @@ static ssize_t kfd_procfs_queue_show(struct kobject *kobj,
return 0;
}
+static ssize_t kfd_procfs_stats_show(struct kobject *kobj,
+ struct attribute *attr, char *buffer)
+{
+ if (strcmp(attr->name, "evicted_ms") == 0) {
+ struct kfd_process_device *pdd = container_of(attr,
+ struct kfd_process_device,
+ attr_evict);
+ uint64_t evict_jiffies;
+
+ evict_jiffies = atomic64_read(&pdd->evict_duration_counter);
+
+ return snprintf(buffer,
+ PAGE_SIZE,
+ "%llu\n",
+ jiffies64_to_msecs(evict_jiffies));
+ } else
+ pr_err("Invalid attribute");
+
+ return 0;
+}
static struct attribute attr_queue_size = {
.name = "size",
@@ -391,6 +411,19 @@ static struct kobj_type procfs_queue_type = {
.default_attrs = procfs_queue_attrs,
};
+static const struct sysfs_ops procfs_stats_ops = {
+ .show = kfd_procfs_stats_show,
+};
+
+static struct attribute *procfs_stats_attrs[] = {
+ NULL
+};
+
+static struct kobj_type procfs_stats_type = {
+ .sysfs_ops = &procfs_stats_ops,
+ .default_attrs = procfs_stats_attrs,
+};
+
int kfd_procfs_add_queue(struct queue *q)
{
struct kfd_process *proc;
@@ -432,6 +465,58 @@ static int kfd_sysfs_create_file(struct kfd_process *p, struct attribute *attr,
return ret;
}
+static int kfd_procfs_add_sysfs_stats(struct kfd_process *p)
+{
+ int ret = 0;
+ struct kfd_process_device *pdd;
+ char stats_dir_filename[MAX_SYSFS_FILENAME_LEN];
+
+ if (!p)
+ return -EINVAL;
+
+ if (!p->kobj)
+ return -EFAULT;
+
+ /*
+ * Create sysfs files for each GPU:
+ * - proc/<pid>/stats_<gpuid>/
+ * - proc/<pid>/stats_<gpuid>/evicted_ms
+ */
+ list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
+ struct kobject *kobj_stats;
+
+ snprintf(stats_dir_filename, MAX_SYSFS_FILENAME_LEN,
+ "stats_%u", pdd->dev->id);
+ kobj_stats = kfd_alloc_struct(kobj_stats);
+ if (!kobj_stats)
+ return -ENOMEM;
+
+ ret = kobject_init_and_add(kobj_stats,
+ &procfs_stats_type,
+ p->kobj,
+ stats_dir_filename);
+
+ if (ret) {
+ pr_warn("Creating KFD proc/stats_%s folder failed",
+ stats_dir_filename);
+ kobject_put(kobj_stats);
+ goto err;
+ }
+
+ pdd->kobj_stats = kobj_stats;
+ pdd->attr_evict.name = "evicted_ms";
+ pdd->attr_evict.mode = KFD_SYSFS_FILE_MODE;
+ sysfs_attr_init(&pdd->attr_evict);
+ ret = sysfs_create_file(kobj_stats, &pdd->attr_evict);
+ if (ret)
+ pr_warn("Creating eviction stats for gpuid %d failed",
+ (int)pdd->dev->id);
+ }
+err:
+ return ret;
+}
+
+
static int kfd_procfs_add_sysfs_files(struct kfd_process *p)
{
int ret = 0;
@@ -680,6 +765,16 @@ struct kfd_process *kfd_create_process(struct task_struct *thread)
if (!process->kobj_queues)
pr_warn("Creating KFD proc/queues folder failed");
+ ret = kfd_procfs_add_sysfs_stats(process);
+ if (ret)
+ pr_warn("Creating sysfs stats dir for pid %d failed",
+ (int)process->lead_thread->pid);
+
+ ret = kfd_procfs_add_sysfs_stats(process);
+ if (ret)
+ pr_warn("Creating sysfs stats dir for pid %d failed",
+ (int)process->lead_thread->pid);
+
ret = kfd_procfs_add_sysfs_files(process);
if (ret)
pr_warn("Creating sysfs usage file for pid %d failed",
@@ -864,6 +959,10 @@ static void kfd_process_wq_release(struct work_struct *work)
list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
sysfs_remove_file(p->kobj, &pdd->attr_vram);
sysfs_remove_file(p->kobj, &pdd->attr_sdma);
+ sysfs_remove_file(p->kobj, &pdd->attr_evict);
+ kobject_del(pdd->kobj_stats);
+ kobject_put(pdd->kobj_stats);
+ pdd->kobj_stats = NULL;
}
kobject_del(p->kobj);
@@ -1228,6 +1327,7 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev,
pdd->runtime_inuse = false;
pdd->vram_usage = 0;
pdd->sdma_past_activity_counter = 0;
+ atomic64_set(&pdd->evict_duration_counter, 0);
list_add(&pdd->per_device_list, &p->per_device_data);
/* Init idr used for memory handle translation */