[AMD Official Use Only - Internal Distribution Only]
> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Felix
> Kuehling
> Sent: Monday, March 22, 2021 6:58 AM
> To: dri-devel@xxxxxxxxxxxxxxxxxxxxx; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Sierra Guiza, Alejandro (Alex) <Alex.Sierra@xxxxxxx>
> Subject: [PATCH 01/44] drm/amdgpu: replace per_device_list by array
>
> [CAUTION: External Email]
>
> From: Alex Sierra <alex.sierra@xxxxxxx>
>
> Remove per_device_list from kfd_process and replace it with a
> kfd_process_device pointers array of MAX_GPU_INSTANCES size. This helps
> to manage the kfd_process_devices binded to a specific kfd_process.
> Also, functions used by kfd_chardev to iterate over the list were removed,
> since they are not valid anymore. Instead, it was replaced by a local loop
> iterating the array.
>
> Signed-off-by: Alex Sierra <alex.sierra@xxxxxxx>
> Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
As discussed, this patch is required to sync internal branches for the KFD and is
Reviewed-by: Jonathan Kim <jonathan.kim@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 116 ++++++++----------
> drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 8 +-
> drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 20 +--
> drivers/gpu/drm/amd/amdkfd/kfd_process.c | 108 ++++++++--------
> .../amd/amdkfd/kfd_process_queue_manager.c | 6 +-
> 5 files changed, 111 insertions(+), 147 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> index 6802c616e10e..43de260b2230 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> @@ -870,52 +870,47 @@ static int kfd_ioctl_get_process_apertures(struct
> file *filp, {
> struct kfd_ioctl_get_process_apertures_args *args = data;
> struct kfd_process_device_apertures *pAperture;
> - struct kfd_process_device *pdd;
> + int i;
>
> dev_dbg(kfd_device, "get apertures for PASID 0x%x", p->pasid);
>
> args->num_of_nodes = 0;
>
> mutex_lock(&p->mutex);
> + /* Run over all pdd of the process */
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> + pAperture =
> + &args->process_apertures[args->num_of_nodes];
> + pAperture->gpu_id = pdd->dev->id;
> + pAperture->lds_base = pdd->lds_base;
> + pAperture->lds_limit = pdd->lds_limit;
> + pAperture->gpuvm_base = pdd->gpuvm_base;
> + pAperture->gpuvm_limit = pdd->gpuvm_limit;
> + pAperture->scratch_base = pdd->scratch_base;
> + pAperture->scratch_limit = pdd->scratch_limit;
>
> - /*if the process-device list isn't empty*/
> - if (kfd_has_process_device_data(p)) {
> - /* Run over all pdd of the process */
> - pdd = kfd_get_first_process_device_data(p);
> - do {
> - pAperture =
> - &args->process_apertures[args->num_of_nodes];
> - pAperture->gpu_id = pdd->dev->id;
> - pAperture->lds_base = pdd->lds_base;
> - pAperture->lds_limit = pdd->lds_limit;
> - pAperture->gpuvm_base = pdd->gpuvm_base;
> - pAperture->gpuvm_limit = pdd->gpuvm_limit;
> - pAperture->scratch_base = pdd->scratch_base;
> - pAperture->scratch_limit = pdd->scratch_limit;
> -
> - dev_dbg(kfd_device,
> - "node id %u\n", args->num_of_nodes);
> - dev_dbg(kfd_device,
> - "gpu id %u\n", pdd->dev->id);
> - dev_dbg(kfd_device,
> - "lds_base %llX\n", pdd->lds_base);
> - dev_dbg(kfd_device,
> - "lds_limit %llX\n", pdd->lds_limit);
> - dev_dbg(kfd_device,
> - "gpuvm_base %llX\n", pdd->gpuvm_base);
> - dev_dbg(kfd_device,
> - "gpuvm_limit %llX\n", pdd->gpuvm_limit);
> - dev_dbg(kfd_device,
> - "scratch_base %llX\n", pdd->scratch_base);
> - dev_dbg(kfd_device,
> - "scratch_limit %llX\n", pdd->scratch_limit);
> -
> - args->num_of_nodes++;
> -
> - pdd = kfd_get_next_process_device_data(p, pdd);
> - } while (pdd && (args->num_of_nodes <
> NUM_OF_SUPPORTED_GPUS));
> - }
> + dev_dbg(kfd_device,
> + "node id %u\n", args->num_of_nodes);
> + dev_dbg(kfd_device,
> + "gpu id %u\n", pdd->dev->id);
> + dev_dbg(kfd_device,
> + "lds_base %llX\n", pdd->lds_base);
> + dev_dbg(kfd_device,
> + "lds_limit %llX\n", pdd->lds_limit);
> + dev_dbg(kfd_device,
> + "gpuvm_base %llX\n", pdd->gpuvm_base);
> + dev_dbg(kfd_device,
> + "gpuvm_limit %llX\n", pdd->gpuvm_limit);
> + dev_dbg(kfd_device,
> + "scratch_base %llX\n", pdd->scratch_base);
> + dev_dbg(kfd_device,
> + "scratch_limit %llX\n", pdd->scratch_limit);
>
> + if (++args->num_of_nodes >= NUM_OF_SUPPORTED_GPUS)
> + break;
> + }
> mutex_unlock(&p->mutex);
>
> return 0;
> @@ -926,9 +921,8 @@ static int
> kfd_ioctl_get_process_apertures_new(struct file *filp, {
> struct kfd_ioctl_get_process_apertures_new_args *args = data;
> struct kfd_process_device_apertures *pa;
> - struct kfd_process_device *pdd;
> - uint32_t nodes = 0;
> int ret;
> + int i;
>
> dev_dbg(kfd_device, "get apertures for PASID 0x%x", p->pasid);
>
> @@ -937,17 +931,7 @@ static int
> kfd_ioctl_get_process_apertures_new(struct file *filp,
> * sufficient memory
> */
> mutex_lock(&p->mutex);
> -
> - if (!kfd_has_process_device_data(p))
> - goto out_unlock;
> -
> - /* Run over all pdd of the process */
> - pdd = kfd_get_first_process_device_data(p);
> - do {
> - args->num_of_nodes++;
> - pdd = kfd_get_next_process_device_data(p, pdd);
> - } while (pdd);
> -
> + args->num_of_nodes = p->n_pdds;
> goto out_unlock;
> }
>
> @@ -962,22 +946,23 @@ static int
> kfd_ioctl_get_process_apertures_new(struct file *filp,
>
> mutex_lock(&p->mutex);
>
> - if (!kfd_has_process_device_data(p)) {
> + if (!p->n_pdds) {
> args->num_of_nodes = 0;
> kfree(pa);
> goto out_unlock;
> }
>
> /* Run over all pdd of the process */
> - pdd = kfd_get_first_process_device_data(p);
> - do {
> - pa[nodes].gpu_id = pdd->dev->id;
> - pa[nodes].lds_base = pdd->lds_base;
> - pa[nodes].lds_limit = pdd->lds_limit;
> - pa[nodes].gpuvm_base = pdd->gpuvm_base;
> - pa[nodes].gpuvm_limit = pdd->gpuvm_limit;
> - pa[nodes].scratch_base = pdd->scratch_base;
> - pa[nodes].scratch_limit = pdd->scratch_limit;
> + for (i = 0; i < min(p->n_pdds, args->num_of_nodes); i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> + pa[i].gpu_id = pdd->dev->id;
> + pa[i].lds_base = pdd->lds_base;
> + pa[i].lds_limit = pdd->lds_limit;
> + pa[i].gpuvm_base = pdd->gpuvm_base;
> + pa[i].gpuvm_limit = pdd->gpuvm_limit;
> + pa[i].scratch_base = pdd->scratch_base;
> + pa[i].scratch_limit = pdd->scratch_limit;
>
> dev_dbg(kfd_device,
> "gpu id %u\n", pdd->dev->id); @@ -993,17 +978,14 @@ static int
> kfd_ioctl_get_process_apertures_new(struct file *filp,
> "scratch_base %llX\n", pdd->scratch_base);
> dev_dbg(kfd_device,
> "scratch_limit %llX\n", pdd->scratch_limit);
> - nodes++;
> -
> - pdd = kfd_get_next_process_device_data(p, pdd);
> - } while (pdd && (nodes < args->num_of_nodes));
> + }
> mutex_unlock(&p->mutex);
>
> - args->num_of_nodes = nodes;
> + args->num_of_nodes = i;
> ret = copy_to_user(
> (void __user *)args->kfd_process_device_apertures_ptr,
> pa,
> - (nodes * sizeof(struct kfd_process_device_apertures)));
> + (i * sizeof(struct
> + kfd_process_device_apertures)));
> kfree(pa);
> return ret ? -EFAULT : 0;
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
> index 9318936aa805..5a1f2433632b 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
> @@ -135,11 +135,11 @@ int kfd_iommu_bind_process_to_device(struct
> kfd_process_device *pdd)
> */
> void kfd_iommu_unbind_process(struct kfd_process *p) {
> - struct kfd_process_device *pdd;
> + int i;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list)
> - if (pdd->bound == PDD_BOUND)
> - amd_iommu_unbind_pasid(pdd->dev->pdev, p->pasid);
> + for (i = 0; i < p->n_pdds; i++)
> + if (p->pdds[i]->bound == PDD_BOUND)
> + amd_iommu_unbind_pasid(p->pdds[i]->dev->pdev,
> + p->pasid);
> }
>
> /* Callback for process shutdown invoked by the IOMMU driver */ diff --git
> a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> index d8c8b5ff449a..33e56db14327 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
> @@ -45,6 +45,7 @@
> #include <linux/swap.h>
>
> #include "amd_shared.h"
> +#include "amdgpu.h"
>
> #define KFD_MAX_RING_ENTRY_SIZE 8
>
> @@ -649,12 +650,6 @@ enum kfd_pdd_bound {
>
> /* Data that is per-process-per device. */ struct kfd_process_device {
> - /*
> - * List of all per-device data for a process.
> - * Starts from kfd_process.per_device_data.
> - */
> - struct list_head per_device_list;
> -
> /* The device that owns this data. */
> struct kfd_dev *dev;
>
> @@ -771,10 +766,11 @@ struct kfd_process {
> u32 pasid;
>
> /*
> - * List of kfd_process_device structures,
> + * Array of kfd_process_device pointers,
> * one for each device the process is using.
> */
> - struct list_head per_device_data;
> + struct kfd_process_device *pdds[MAX_GPU_INSTANCE];
> + uint32_t n_pdds;
>
> struct process_queue_manager pqm;
>
> @@ -872,14 +868,6 @@ void *kfd_process_device_translate_handle(struct
> kfd_process_device *p, void
> kfd_process_device_remove_obj_handle(struct kfd_process_device *pdd,
> int handle);
>
> -/* Process device data iterator */
> -struct kfd_process_device *kfd_get_first_process_device_data(
> - struct kfd_process *p);
> -struct kfd_process_device *kfd_get_next_process_device_data(
> - struct kfd_process *p,
> - struct kfd_process_device *pdd);
> -bool kfd_has_process_device_data(struct kfd_process *p);
> -
> /* PASIDs */
> int kfd_pasid_init(void);
> void kfd_pasid_exit(void);
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> index f5237997fa18..d4241d29ea94 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
> @@ -505,7 +505,7 @@ static int kfd_sysfs_create_file(struct kfd_process *p,
> struct attribute *attr, static int kfd_procfs_add_sysfs_stats(struct
> kfd_process *p) {
> int ret = 0;
> - struct kfd_process_device *pdd;
> + int i;
> char stats_dir_filename[MAX_SYSFS_FILENAME_LEN];
>
> if (!p)
> @@ -520,7 +520,8 @@ static int kfd_procfs_add_sysfs_stats(struct
> kfd_process *p)
> * - proc/<pid>/stats_<gpuid>/evicted_ms
> * - proc/<pid>/stats_<gpuid>/cu_occupancy
> */
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> struct kobject *kobj_stats;
>
> snprintf(stats_dir_filename, MAX_SYSFS_FILENAME_LEN, @@ -
> 571,7 +572,7 @@ static int kfd_procfs_add_sysfs_stats(struct kfd_process
> *p) static int kfd_procfs_add_sysfs_files(struct kfd_process *p) {
> int ret = 0;
> - struct kfd_process_device *pdd;
> + int i;
>
> if (!p)
> return -EINVAL;
> @@ -584,7 +585,9 @@ static int kfd_procfs_add_sysfs_files(struct
> kfd_process *p)
> * - proc/<pid>/vram_<gpuid>
> * - proc/<pid>/sdma_<gpuid>
> */
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> snprintf(pdd->vram_filename, MAX_SYSFS_FILENAME_LEN,
> "vram_%u",
> pdd->dev->id);
> ret = kfd_sysfs_create_file(p, &pdd->attr_vram, pdd-
> >vram_filename); @@ -881,21 +884,23 @@ void kfd_unref_process(struct
> kfd_process *p)
> kref_put(&p->ref, kfd_process_ref_release); }
>
> +
> static void kfd_process_device_free_bos(struct kfd_process_device *pdd)
> {
> struct kfd_process *p = pdd->process;
> void *mem;
> int id;
> + int i;
>
> /*
> * Remove all handles from idr and release appropriate
> * local memory object
> */
> idr_for_each_entry(&pdd->alloc_idr, mem, id) {
> - struct kfd_process_device *peer_pdd;
>
> - list_for_each_entry(peer_pdd, &p->per_device_data,
> - per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *peer_pdd =
> + p->pdds[i];
> +
> if (!peer_pdd->vm)
> continue;
> amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
> @@ -909,18 +914,19 @@ static void kfd_process_device_free_bos(struct
> kfd_process_device *pdd)
>
> static void kfd_process_free_outstanding_kfd_bos(struct kfd_process *p) {
> - struct kfd_process_device *pdd;
> + int i;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list)
> - kfd_process_device_free_bos(pdd);
> + for (i = 0; i < p->n_pdds; i++)
> + kfd_process_device_free_bos(p->pdds[i]);
> }
>
> static void kfd_process_destroy_pdds(struct kfd_process *p) {
> - struct kfd_process_device *pdd, *temp;
> + int i;
> +
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
>
> - list_for_each_entry_safe(pdd, temp, &p->per_device_data,
> - per_device_list) {
> pr_debug("Releasing pdd (topology id %d) for process (pasid
> 0x%x)\n",
> pdd->dev->id, p->pasid);
>
> @@ -933,8 +939,6 @@ static void kfd_process_destroy_pdds(struct
> kfd_process *p)
> amdgpu_amdkfd_gpuvm_destroy_process_vm(
> pdd->dev->kgd, pdd->vm);
>
> - list_del(&pdd->per_device_list);
> -
> if (pdd->qpd.cwsr_kaddr && !pdd->qpd.cwsr_base)
> free_pages((unsigned long)pdd->qpd.cwsr_kaddr,
> get_order(KFD_CWSR_TBA_TMA_SIZE));
> @@ -955,7 +959,9 @@ static void kfd_process_destroy_pdds(struct
> kfd_process *p)
> }
>
> kfree(pdd);
> + p->pdds[i] = NULL;
> }
> + p->n_pdds = 0;
> }
>
> /* No process locking is needed in this function, because the process @@ -
> 967,7 +973,7 @@ static void kfd_process_wq_release(struct work_struct
> *work) {
> struct kfd_process *p = container_of(work, struct kfd_process,
> release_work);
> - struct kfd_process_device *pdd;
> + int i;
>
> /* Remove the procfs files */
> if (p->kobj) {
> @@ -976,7 +982,9 @@ static void kfd_process_wq_release(struct
> work_struct *work)
> kobject_put(p->kobj_queues);
> p->kobj_queues = NULL;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> sysfs_remove_file(p->kobj, &pdd->attr_vram);
> sysfs_remove_file(p->kobj, &pdd->attr_sdma);
> sysfs_remove_file(p->kobj, &pdd->attr_evict); @@ -1036,7
> +1044,7 @@ static void kfd_process_notifier_release(struct mmu_notifier
> *mn,
> struct mm_struct *mm) {
> struct kfd_process *p;
> - struct kfd_process_device *pdd = NULL;
> + int i;
>
> /*
> * The kfd_process structure can not be free because the @@ -1060,8
> +1068,8 @@ static void kfd_process_notifier_release(struct mmu_notifier
> *mn,
> * pdd is in debug mode, we should first force unregistration,
> * then we will be able to destroy the queues
> */
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> - struct kfd_dev *dev = pdd->dev;
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_dev *dev = p->pdds[i]->dev;
>
> mutex_lock(kfd_get_dbgmgr_mutex());
> if (dev && dev->dbgmgr && dev->dbgmgr->pasid == p->pasid) { @@
> -1098,11 +1106,11 @@ static const struct mmu_notifier_ops
> kfd_process_mmu_notifier_ops = { static int
> kfd_process_init_cwsr_apu(struct kfd_process *p, struct file *filep) {
> unsigned long offset;
> - struct kfd_process_device *pdd;
> + int i;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> - struct kfd_dev *dev = pdd->dev;
> - struct qcm_process_device *qpd = &pdd->qpd;
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_dev *dev = p->pdds[i]->dev;
> + struct qcm_process_device *qpd = &p->pdds[i]->qpd;
>
> if (!dev->cwsr_enabled || qpd->cwsr_kaddr || qpd->cwsr_base)
> continue;
> @@ -1199,7 +1207,7 @@ static struct kfd_process *create_process(const
> struct task_struct *thread)
> mutex_init(&process->mutex);
> process->mm = thread->mm;
> process->lead_thread = thread->group_leader;
> - INIT_LIST_HEAD(&process->per_device_data);
> + process->n_pdds = 0;
> INIT_DELAYED_WORK(&process->eviction_work,
> evict_process_worker);
> INIT_DELAYED_WORK(&process->restore_work,
> restore_process_worker);
> process->last_restore_timestamp = get_jiffies_64(); @@ -1290,11
> +1298,11 @@ static int init_doorbell_bitmap(struct qcm_process_device
> *qpd, struct kfd_process_device *kfd_get_process_device_data(struct
> kfd_dev *dev,
> struct kfd_process *p) {
> - struct kfd_process_device *pdd = NULL;
> + int i;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list)
> - if (pdd->dev == dev)
> - return pdd;
> + for (i = 0; i < p->n_pdds; i++)
> + if (p->pdds[i]->dev == dev)
> + return p->pdds[i];
>
> return NULL;
> }
> @@ -1304,6 +1312,8 @@ struct kfd_process_device
> *kfd_create_process_device_data(struct kfd_dev *dev, {
> struct kfd_process_device *pdd = NULL;
>
> + if (WARN_ON_ONCE(p->n_pdds >= MAX_GPU_INSTANCE))
> + return NULL;
> pdd = kzalloc(sizeof(*pdd), GFP_KERNEL);
> if (!pdd)
> return NULL;
> @@ -1332,7 +1342,7 @@ struct kfd_process_device
> *kfd_create_process_device_data(struct kfd_dev *dev,
> 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);
> + p->pdds[p->n_pdds++] = pdd;
>
> /* Init idr used for memory handle translation */
> idr_init(&pdd->alloc_idr);
> @@ -1464,28 +1474,6 @@ struct kfd_process_device
> *kfd_bind_process_to_device(struct kfd_dev *dev,
> return ERR_PTR(err);
> }
>
> -struct kfd_process_device *kfd_get_first_process_device_data(
> - struct kfd_process *p)
> -{
> - return list_first_entry(&p->per_device_data,
> - struct kfd_process_device,
> - per_device_list);
> -}
> -
> -struct kfd_process_device *kfd_get_next_process_device_data(
> - struct kfd_process *p,
> - struct kfd_process_device *pdd)
> -{
> - if (list_is_last(&pdd->per_device_list, &p->per_device_data))
> - return NULL;
> - return list_next_entry(pdd, per_device_list);
> -}
> -
> -bool kfd_has_process_device_data(struct kfd_process *p) -{
> - return !(list_empty(&p->per_device_data));
> -}
> -
> /* Create specific handle mapped to mem from process local memory idr
> * Assumes that the process lock is held.
> */
> @@ -1561,11 +1549,13 @@ struct kfd_process
> *kfd_lookup_process_by_mm(const struct mm_struct *mm)
> */
> int kfd_process_evict_queues(struct kfd_process *p) {
> - struct kfd_process_device *pdd;
> int r = 0;
> + int i;
> unsigned int n_evicted = 0;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> r = pdd->dev->dqm->ops.evict_process_queues(pdd->dev->dqm,
> &pdd->qpd);
> if (r) {
> @@ -1581,7 +1571,9 @@ int kfd_process_evict_queues(struct kfd_process
> *p)
> /* To keep state consistent, roll back partial eviction by
> * restoring queues
> */
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
> +
> if (n_evicted == 0)
> break;
> if (pdd->dev->dqm->ops.restore_process_queues(pdd->dev->dqm,
> @@ -1597,10 +1589,12 @@ int kfd_process_evict_queues(struct
> kfd_process *p)
> /* kfd_process_restore_queues - Restore all user queues of a process */
> int kfd_process_restore_queues(struct kfd_process *p) {
> - struct kfd_process_device *pdd;
> int r, ret = 0;
> + int i;
> +
> + for (i = 0; i < p->n_pdds; i++) {
> + struct kfd_process_device *pdd = p->pdds[i];
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list) {
> r = pdd->dev->dqm->ops.restore_process_queues(pdd->dev-
> >dqm,
> &pdd->qpd);
> if (r) {
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
> b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
> index eb1635ac8988..95a6c36cea4c 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
> @@ -126,10 +126,10 @@ int pqm_set_gws(struct process_queue_manager
> *pqm, unsigned int qid,
>
> void kfd_process_dequeue_from_all_devices(struct kfd_process *p) {
> - struct kfd_process_device *pdd;
> + int i;
>
> - list_for_each_entry(pdd, &p->per_device_data, per_device_list)
> - kfd_process_dequeue_from_device(pdd);
> + for (i = 0; i < p->n_pdds; i++)
> + kfd_process_dequeue_from_device(p->pdds[i]);
> }
>
> int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p)
> --
> 2.31.0
>
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