[PATCH v2] drm/amdgpu: fix system hang issue during GPU reset
Li, Dennis
Dennis.Li at amd.com
Sat Jul 11 03:26:10 UTC 2020
[AMD Official Use Only - Internal Distribution Only]
-----Original Message-----
From: Grodzovsky, Andrey <Andrey.Grodzovsky at amd.com>
Sent: Saturday, July 11, 2020 1:54 AM
To: Li, Dennis <Dennis.Li at amd.com>; amd-gfx at lists.freedesktop.org; Deucher, Alexander <Alexander.Deucher at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>; Chen, Guchun <Guchun.Chen at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>
Subject: Re: [PATCH v2] drm/amdgpu: fix system hang issue during GPU reset
On 7/10/20 1:24 PM, Li, Dennis wrote:
> [AMD Official Use Only - Internal Distribution Only]
>
> Hi, Andrey,
> Please see my below comments.
>
> Best Regards
> Dennis Li
> -----Original Message-----
> From: Grodzovsky, Andrey <Andrey.Grodzovsky at amd.com>
> Sent: Friday, July 10, 2020 11:08 PM
> To: Li, Dennis <Dennis.Li at amd.com>; amd-gfx at lists.freedesktop.org; Deucher, Alexander <Alexander.Deucher at amd.com>; Zhou1, Tao <Tao.Zhou1 at amd.com>; Zhang, Hawking <Hawking.Zhang at amd.com>; Chen, Guchun <Guchun.Chen at amd.com>; Koenig, Christian <Christian.Koenig at amd.com>
> Subject: Re: [PATCH v2] drm/amdgpu: fix system hang issue during GPU reset
>
>
> On 7/8/20 3:48 AM, Dennis Li wrote:
>> During GPU reset, driver should hold on all external access to
>> GPU, otherwise psp will randomly fail to do post, and then cause
>> system hang.
>>
>> v2:
>> 1. add rwlock for some ioctls, debugfs and file-close function.
>> 2. change to use dqm->is_resetting and dqm_lock for protection in kfd
>> driver.
>> 3. remove try_lock and change adev->in_gpu_reset as atomic, to avoid
>> re-enter GPU recovery for the same GPU hang.
>
> Still adev->in_gpu_reset is prone to race, no ? I mean if the reset starts right AFTER we checked for the flag value then we still have a problem.
> [Dennis]: right, adev->in_gpu_reset can't solve race issue, so I introduced adev->reset_sem.
Then why keep in_gpu_reset and not convert all those places it's used to using
reset_sem ?
[Dennis Li] Because some functions are also called by amdgpu_device_gpu_recover, adev->in_gpu_reset help these functions to skip some steps.
Also bellow there was a comment on amdgpu_device_lock_adev, take a look please.
Andrey
>
> I recently worked (and still do) on device unplug support, I was thinking - can we use something alike drm_dev_enter/drm_dev_exit and drm_dev_unplug for our cause and this would replace both adev->in_gpu_reset and the lock_reset mutex(or rw_semaphote) ? In our case we also would need a 'drm_dev_plug_back' function too. Maybe we can even use the existing drm helpers as is as because while device is being reset it's effectively the same as if it's unplugged i think...
> [Dennis]: When GPU do baco reset, bus is still active which is different unplug. I prefer to use adev->reset_sem.
>
> Some more bellow
>
>> Signed-off-by: Dennis Li <Dennis.Li at amd.com>
>> Change-Id: I7f77a72795462587ed7d5f51fe53a594a0f1f708
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> index 80f32b3beb88..f235492799d7 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
>> @@ -963,9 +963,9 @@ struct amdgpu_device {
>> bool in_suspend;
>> bool in_hibernate;
>>
>> - bool in_gpu_reset;
>> + atomic_t in_gpu_reset;
>> enum pp_mp1_state mp1_state;
>> - struct mutex lock_reset;
>> + struct rw_semaphore reset_sem;
>> struct amdgpu_doorbell_index doorbell_index;
>>
>> struct mutex notifier_lock;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
>> index 691c89705bcd..af71d8e93081 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
>> @@ -543,7 +543,7 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
>> uint32_t temp;
>> struct v10_compute_mqd *m = get_mqd(mqd);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> #if 0
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
>> index 0b7e78748540..750a8308c868 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c
>> @@ -425,7 +425,7 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
>> unsigned long flags, end_jiffies;
>> int retry;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> acquire_queue(kgd, pipe_id, queue_id);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
>> index ccd635b812b5..027793e0c1ca 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
>> @@ -421,7 +421,7 @@ static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
>> int retry;
>> struct vi_mqd *m = get_mqd(mqd);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> acquire_queue(kgd, pipe_id, queue_id);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
>> index df841c2ac5e7..e4a77f7a4c2d 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c
>> @@ -541,7 +541,7 @@ int kgd_gfx_v9_hqd_destroy(struct kgd_dev *kgd, void *mqd,
>> uint32_t temp;
>> struct v9_mqd *m = get_mqd(mqd);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> acquire_queue(kgd, pipe_id, queue_id);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> index ffbcaf4bfb8b..a94b3f862fc2 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
>> @@ -1292,6 +1292,8 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
>> parser.adev = adev;
>> parser.filp = filp;
>>
>> + down_read(&adev->reset_sem);
>> +
>> r = amdgpu_cs_parser_init(&parser, data);
>> if (r) {
>> DRM_ERROR("Failed to initialize parser %d!\n", r);
>> @@ -1331,6 +1333,8 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
>> out:
>> amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
>>
>> + up_read(&adev->reset_sem);
>> +
>> return r;
>> }
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
>> index 8842c55d4490..d85d13f7a043 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
>> @@ -358,6 +358,8 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev,
>> if (atomic_read(&ctx->guilty))
>> out->state.flags |= AMDGPU_CTX_QUERY2_FLAGS_GUILTY;
>>
>> + down_read(&adev->reset_sem);
>> +
>> /*query ue count*/
>> ras_counter = amdgpu_ras_query_error_count(adev, false);
>> /*ras counter is monotonic increasing*/
>> @@ -373,6 +375,8 @@ static int amdgpu_ctx_query2(struct amdgpu_device *adev,
>> ctx->ras_counter_ce = ras_counter;
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> mutex_unlock(&mgr->lock);
>> return 0;
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>> index aeada7c9fbea..ecbff532a21b 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>> @@ -100,14 +100,14 @@ static int amdgpu_debugfs_autodump_open(struct inode *inode, struct file *file)
>>
>> file->private_data = adev;
>>
>> - mutex_lock(&adev->lock_reset);
>> + down_read(&adev->reset_sem);
>> if (adev->autodump.dumping.done) {
>> reinit_completion(&adev->autodump.dumping);
>> ret = 0;
>> } else {
>> ret = -EBUSY;
>> }
>> - mutex_unlock(&adev->lock_reset);
>> + up_read(&adev->reset_sem);
>>
>> return ret;
>> }
>> @@ -126,7 +126,7 @@ static unsigned int amdgpu_debugfs_autodump_poll(struct file *file, struct poll_
>>
>> poll_wait(file, &adev->autodump.gpu_hang, poll_table);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return POLLIN | POLLRDNORM | POLLWRNORM;
>>
>> return 0;
>> @@ -1188,7 +1188,7 @@ static int amdgpu_debugfs_test_ib(struct seq_file *m, void *data)
>> }
>>
>> /* Avoid accidently unparking the sched thread during GPU reset */
>> - mutex_lock(&adev->lock_reset);
>> + down_read(&adev->reset_sem);
>>
>> /* hold on the scheduler */
>> for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
>> @@ -1215,7 +1215,7 @@ static int amdgpu_debugfs_test_ib(struct seq_file *m, void *data)
>> kthread_unpark(ring->sched.thread);
>> }
>>
>> - mutex_unlock(&adev->lock_reset);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(dev->dev);
>> pm_runtime_put_autosuspend(dev->dev);
>> @@ -1395,7 +1395,7 @@ static int amdgpu_debugfs_ib_preempt(void *data, u64 val)
>> return -ENOMEM;
>>
>> /* Avoid accidently unparking the sched thread during GPU reset */
>> - mutex_lock(&adev->lock_reset);
>> + down_read(&adev->reset_sem);
>>
>> /* stop the scheduler */
>> kthread_park(ring->sched.thread);
>> @@ -1436,7 +1436,7 @@ static int amdgpu_debugfs_ib_preempt(void *data, u64 val)
>> /* restart the scheduler */
>> kthread_unpark(ring->sched.thread);
>>
>> - mutex_unlock(&adev->lock_reset);
>> + up_read(&adev->reset_sem);
>>
>> ttm_bo_unlock_delayed_workqueue(&adev->mman.bdev, resched);
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> index 2913e41f63a5..4f3ec9746d0c 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>> @@ -1929,7 +1929,7 @@ static int amdgpu_device_fw_loading(struct amdgpu_device *adev)
>> if (adev->ip_blocks[i].status.hw == true)
>> break;
>>
>> - if (adev->in_gpu_reset || adev->in_suspend) {
>> + if (atomic_read(&adev->in_gpu_reset) || adev->in_suspend) {
>> r = adev->ip_blocks[i].version->funcs->resume(adev);
>> if (r) {
>> DRM_ERROR("resume of IP block <%s> failed %d\n",
>> @@ -2100,7 +2100,7 @@ static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
>> AMDGPU_RESET_MAGIC_NUM))
>> return true;
>>
>> - if (!adev->in_gpu_reset)
>> + if (!atomic_read(&adev->in_gpu_reset))
>> return false;
>>
>> /*
>> @@ -3026,7 +3026,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
>> mutex_init(&adev->mn_lock);
>> mutex_init(&adev->virt.vf_errors.lock);
>> hash_init(adev->mn_hash);
>> - mutex_init(&adev->lock_reset);
>> + init_rwsem(&adev->reset_sem);
>> + atomic_set(&adev->in_gpu_reset, 0);
>> mutex_init(&adev->psp.mutex);
>> mutex_init(&adev->notifier_lock);
>>
>> @@ -4131,16 +4132,14 @@ static int amdgpu_do_asic_reset(struct amdgpu_hive_info *hive,
>> return r;
>> }
>>
>> -static bool amdgpu_device_lock_adev(struct amdgpu_device *adev, bool trylock)
>> +static bool amdgpu_device_lock_adev(struct amdgpu_device *adev)
>> {
>> - if (trylock) {
>> - if (!mutex_trylock(&adev->lock_reset))
>> - return false;
>> - } else
>> - mutex_lock(&adev->lock_reset);
>> + if (atomic_cmpxchg(&adev->in_gpu_reset, 0, 1) != 0)
>> + return false;
>> +
>> + down_write(&adev->reset_sem);
>
> In V1 Christian raised a concern of this change increasing the chance for gpu
> recovery abort due to collision of amdgpu_device_lock_adev doing down_write
> trylock with read side lock of any of the many operations here. I understand the
> need for this but before the 'trylock' was used only for XGMI case because we
> knew XGMI hang on once card will trigger hangs on all other cards in the hive
> but now the 'trylock' logic (implemented by atomic_cmpxchg) also applies to the
> more common non XGMI case
>
> Andrey
[Dennis] Yes, we also need 'trylock' logic for non XGMI case. Driver has multi-paths to detect GPU hang, and then trigger gpu_recovery. The 'trylock' logic here is used to avoid re-entering gpu_recovery for the same GPU hang.
>
>>
>> atomic_inc(&adev->gpu_reset_counter);
>> - adev->in_gpu_reset = true;
>> switch (amdgpu_asic_reset_method(adev)) {
>> case AMD_RESET_METHOD_MODE1:
>> adev->mp1_state = PP_MP1_STATE_SHUTDOWN;
>> @@ -4160,8 +4159,8 @@ static void amdgpu_device_unlock_adev(struct amdgpu_device *adev)
>> {
>> amdgpu_vf_error_trans_all(adev);
>> adev->mp1_state = PP_MP1_STATE_NONE;
>> - adev->in_gpu_reset = false;
>> - mutex_unlock(&adev->lock_reset);
>> + atomic_set(&adev->in_gpu_reset, 0);
>> + up_write(&adev->reset_sem);
>> }
>>
>> static void amdgpu_device_resume_display_audio(struct amdgpu_device *adev)
>> @@ -4297,7 +4296,7 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
>>
>> /* block all schedulers and reset given job's ring */
>> list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
>> - if (!amdgpu_device_lock_adev(tmp_adev, !hive)) {
>> + if (!amdgpu_device_lock_adev(tmp_adev)) {
>> DRM_INFO("Bailing on TDR for s_job:%llx, as another already in progress",
>> job ? job->base.id : -1);
>> mutex_unlock(&hive->hive_lock);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> index 77d988a0033f..96df3669a9d2 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
>> @@ -670,6 +670,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
>> bo_va = NULL;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> switch (args->operation) {
>> case AMDGPU_VA_OP_MAP:
>> va_flags = amdgpu_gem_va_map_flags(adev, args->flags);
>> @@ -699,6 +701,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
>> amdgpu_gem_va_update_vm(adev, &fpriv->vm, bo_va,
>> args->operation);
>>
>> + up_read(&adev->reset_sem);
>> +
>> error_backoff:
>> ttm_eu_backoff_reservation(&ticket, &list);
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>> index d612033a23ac..c9f13f836a7a 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>> @@ -710,7 +710,7 @@ uint32_t amdgpu_kiq_rreg(struct amdgpu_device *adev, uint32_t reg)
>> *
>> * also don't wait anymore for IRQ context
>> * */
>> - if (r < 1 && (adev->in_gpu_reset || in_interrupt()))
>> + if (r < 1 && (atomic_read(&adev->in_gpu_reset) || in_interrupt()))
>> goto failed_kiq_read;
>>
>> might_sleep();
>> @@ -768,7 +768,7 @@ void amdgpu_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
>> *
>> * also don't wait anymore for IRQ context
>> * */
>> - if (r < 1 && (adev->in_gpu_reset || in_interrupt()))
>> + if (r < 1 && (atomic_read(&adev->in_gpu_reset) || in_interrupt()))
>> goto failed_kiq_write;
>>
>> might_sleep();
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> index 937029ad5271..367528de1658 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
>> @@ -226,8 +226,10 @@ static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
>> if (finished->error < 0) {
>> DRM_INFO("Skip scheduling IBs!\n");
>> } else {
>> + down_read(&ring->adev->reset_sem);
>> r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job,
>> &fence);
>> + up_read(&ring->adev->reset_sem);
>> if (r)
>> DRM_ERROR("Error scheduling IBs (%d)\n", r);
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> index 9c2c5e4ed1eb..eebbe2103e32 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
>> @@ -1084,6 +1084,8 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
>> if (!fpriv)
>> return;
>>
>> + down_read(&adev->reset_sem);
>> +
>> pm_runtime_get_sync(dev->dev);
>>
>> if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_UVD) != NULL)
>> @@ -1122,6 +1124,8 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
>>
>> pm_runtime_mark_last_busy(dev->dev);
>> pm_runtime_put_autosuspend(dev->dev);
>> +
>> + up_read(&adev->reset_sem);
>> }
>>
>> /*
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>> index d2401379bd33..61b23ae906d7 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
>> @@ -163,7 +163,7 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
>> enum amd_pm_state_type pm;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -172,6 +172,8 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> if (adev->smu.ppt_funcs->get_current_power_state)
>> pm = smu_get_current_power_state(&adev->smu);
>> @@ -183,6 +185,8 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
>> pm = adev->pm.dpm.user_state;
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -201,7 +205,7 @@ static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
>> enum amd_pm_state_type state;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (strncmp("battery", buf, strlen("battery")) == 0)
>> @@ -219,6 +223,8 @@ static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> mutex_lock(&adev->pm.mutex);
>> adev->pm.dpm.user_state = state;
>> @@ -232,6 +238,9 @@ static ssize_t amdgpu_set_power_dpm_state(struct device *dev,
>>
>> amdgpu_pm_compute_clocks(adev);
>> }
>> +
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -307,7 +316,7 @@ static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
>> enum amd_dpm_forced_level level = 0xff;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -316,6 +325,8 @@ static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> level = smu_get_performance_level(&adev->smu);
>> else if (adev->powerplay.pp_funcs->get_performance_level)
>> @@ -323,6 +334,8 @@ static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
>> else
>> level = adev->pm.dpm.forced_level;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -349,7 +362,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> enum amd_dpm_forced_level current_level = 0xff;
>> int ret = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (strncmp("low", buf, strlen("low")) == 0) {
>> @@ -380,6 +393,8 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> current_level = smu_get_performance_level(&adev->smu);
>> else if (adev->powerplay.pp_funcs->get_performance_level)
>> @@ -388,7 +403,8 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> if (current_level == level) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return count;
>> + ret = count;
>> + goto pro_end;
>> }
>>
>> if (adev->asic_type == CHIP_RAVEN) {
>> @@ -409,7 +425,8 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> pr_err("Currently not in any profile mode!\n");
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>>
>> if (is_support_sw_smu(adev)) {
>> @@ -417,7 +434,8 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>> } else if (adev->powerplay.pp_funcs->force_performance_level) {
>> mutex_lock(&adev->pm.mutex);
>> @@ -425,14 +443,16 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> mutex_unlock(&adev->pm.mutex);
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>> ret = amdgpu_dpm_force_performance_level(adev, level);
>> if (ret) {
>> mutex_unlock(&adev->pm.mutex);
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> } else {
>> adev->pm.dpm.forced_level = level;
>> }
>> @@ -441,7 +461,9 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> - return count;
>> +pro_end:
>> + up_read(&adev->reset_sem);
>> + return ret;
>> }
>>
>> static ssize_t amdgpu_get_pp_num_states(struct device *dev,
>> @@ -453,7 +475,7 @@ static ssize_t amdgpu_get_pp_num_states(struct device *dev,
>> struct pp_states_info data;
>> int i, buf_len, ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -497,7 +519,7 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
>> enum amd_pm_state_type pm = 0;
>> int i = 0, ret = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -538,7 +560,7 @@ static ssize_t amdgpu_get_pp_force_state(struct device *dev,
>> struct drm_device *ddev = dev_get_drvdata(dev);
>> struct amdgpu_device *adev = ddev->dev_private;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (adev->pp_force_state_enabled)
>> @@ -558,7 +580,7 @@ static ssize_t amdgpu_set_pp_force_state(struct device *dev,
>> unsigned long idx;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (strlen(buf) == 1)
>> @@ -584,6 +606,7 @@ static ssize_t amdgpu_set_pp_force_state(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* only set user selected power states */
>> if (state != POWER_STATE_TYPE_INTERNAL_BOOT &&
>> state != POWER_STATE_TYPE_DEFAULT) {
>> @@ -591,6 +614,8 @@ static ssize_t amdgpu_set_pp_force_state(struct device *dev,
>> AMD_PP_TASK_ENABLE_USER_STATE, &state);
>> adev->pp_force_state_enabled = true;
>> }
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> }
>> @@ -618,7 +643,7 @@ static ssize_t amdgpu_get_pp_table(struct device *dev,
>> char *table = NULL;
>> int size, ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -662,7 +687,7 @@ static ssize_t amdgpu_set_pp_table(struct device *dev,
>> struct amdgpu_device *adev = ddev->dev_private;
>> int ret = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -671,16 +696,21 @@ static ssize_t amdgpu_set_pp_table(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> ret = smu_sys_set_pp_table(&adev->smu, (void *)buf, count);
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> + up_read(&adev->reset_sem);
>> return ret;
>> }
>> } else if (adev->powerplay.pp_funcs->set_pp_table)
>> amdgpu_dpm_set_pp_table(adev, buf, count);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -769,7 +799,7 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
>> const char delimiter[3] = {' ', '\n', '\0'};
>> uint32_t type;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (count > 127)
>> @@ -813,6 +843,10 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
>> return ret;
>> }
>>
>> + ret = count;
>> +
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> ret = smu_od_edit_dpm_table(&adev->smu, type,
>> parameter, parameter_size);
>> @@ -820,7 +854,8 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>> } else {
>> if (adev->powerplay.pp_funcs->odn_edit_dpm_table) {
>> @@ -829,7 +864,8 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>> }
>>
>> @@ -840,18 +876,22 @@ static ssize_t amdgpu_set_pp_od_clk_voltage(struct device *dev,
>> NULL);
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return count;
>> + ret = count;
>> + goto pro_end;
>> } else {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> - return -EINVAL;
>> + ret = -EINVAL;
>> + goto pro_end;
>> }
>> }
>> }
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> - return count;
>> +pro_end:
>> + up_read(&adev->reset_sem);
>> + return ret;
>> }
>>
>> static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
>> @@ -863,7 +903,7 @@ static ssize_t amdgpu_get_pp_od_clk_voltage(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -917,7 +957,7 @@ static ssize_t amdgpu_set_pp_features(struct device *dev,
>> uint64_t featuremask;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = kstrtou64(buf, 0, &featuremask);
>> @@ -932,11 +972,13 @@ static ssize_t amdgpu_set_pp_features(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> if (is_support_sw_smu(adev)) {
>> ret = smu_sys_set_pp_feature_mask(&adev->smu, featuremask);
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>> } else if (adev->powerplay.pp_funcs->set_ppfeature_status) {
>> @@ -944,9 +986,12 @@ static ssize_t amdgpu_set_pp_features(struct device *dev,
>> if (ret) {
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>> }
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -962,7 +1007,7 @@ static ssize_t amdgpu_get_pp_features(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -971,6 +1016,8 @@ static ssize_t amdgpu_get_pp_features(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_sys_get_pp_feature_mask(&adev->smu, buf);
>> else if (adev->powerplay.pp_funcs->get_ppfeature_status)
>> @@ -978,6 +1025,8 @@ static ssize_t amdgpu_get_pp_features(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1023,7 +1072,7 @@ static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1032,6 +1081,8 @@ static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_SCLK, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1039,6 +1090,8 @@ static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1091,7 +1144,7 @@ static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
>> int ret;
>> uint32_t mask = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1104,11 +1157,15 @@ static ssize_t amdgpu_set_pp_dpm_sclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_SCLK, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> ret = amdgpu_dpm_force_clock_level(adev, PP_SCLK, mask);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1127,7 +1184,7 @@ static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1136,6 +1193,8 @@ static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_MCLK, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1143,6 +1202,8 @@ static ssize_t amdgpu_get_pp_dpm_mclk(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1159,7 +1220,7 @@ static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
>> uint32_t mask = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1172,11 +1233,15 @@ static ssize_t amdgpu_set_pp_dpm_mclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_MCLK, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> ret = amdgpu_dpm_force_clock_level(adev, PP_MCLK, mask);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1195,7 +1260,7 @@ static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1204,6 +1269,8 @@ static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_SOCCLK, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1211,6 +1278,8 @@ static ssize_t amdgpu_get_pp_dpm_socclk(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1227,7 +1296,7 @@ static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
>> int ret;
>> uint32_t mask = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1240,6 +1309,8 @@ static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_SOCCLK, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> @@ -1247,6 +1318,8 @@ static ssize_t amdgpu_set_pp_dpm_socclk(struct device *dev,
>> else
>> ret = 0;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1265,7 +1338,7 @@ static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1274,6 +1347,8 @@ static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_FCLK, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1281,6 +1356,8 @@ static ssize_t amdgpu_get_pp_dpm_fclk(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1297,7 +1374,7 @@ static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
>> int ret;
>> uint32_t mask = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1310,6 +1387,8 @@ static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_FCLK, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> @@ -1317,6 +1396,8 @@ static ssize_t amdgpu_set_pp_dpm_fclk(struct device *dev,
>> else
>> ret = 0;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1335,7 +1416,7 @@ static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1344,6 +1425,8 @@ static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_DCEFCLK, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1351,6 +1434,8 @@ static ssize_t amdgpu_get_pp_dpm_dcefclk(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1367,7 +1452,7 @@ static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
>> int ret;
>> uint32_t mask = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1380,6 +1465,8 @@ static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_DCEFCLK, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> @@ -1387,6 +1474,8 @@ static ssize_t amdgpu_set_pp_dpm_dcefclk(struct device *dev,
>> else
>> ret = 0;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1405,7 +1494,7 @@ static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1414,6 +1503,8 @@ static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_print_clk_levels(&adev->smu, SMU_PCIE, buf);
>> else if (adev->powerplay.pp_funcs->print_clock_levels)
>> @@ -1421,6 +1512,8 @@ static ssize_t amdgpu_get_pp_dpm_pcie(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1437,7 +1530,7 @@ static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
>> int ret;
>> uint32_t mask = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = amdgpu_read_mask(buf, count, &mask);
>> @@ -1450,6 +1543,8 @@ static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_force_clk_levels(&adev->smu, SMU_PCIE, mask, true);
>> else if (adev->powerplay.pp_funcs->force_clock_level)
>> @@ -1457,6 +1552,8 @@ static ssize_t amdgpu_set_pp_dpm_pcie(struct device *dev,
>> else
>> ret = 0;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1475,7 +1572,7 @@ static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
>> uint32_t value = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1484,11 +1581,15 @@ static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> value = smu_get_od_percentage(&(adev->smu), SMU_OD_SCLK);
>> else if (adev->powerplay.pp_funcs->get_sclk_od)
>> value = amdgpu_dpm_get_sclk_od(adev);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1505,7 +1606,7 @@ static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
>> int ret;
>> long int value;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = kstrtol(buf, 0, &value);
>> @@ -1519,6 +1620,8 @@ static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> value = smu_set_od_percentage(&(adev->smu), SMU_OD_SCLK, (uint32_t)value);
>> } else {
>> @@ -1533,6 +1636,8 @@ static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
>> }
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1548,7 +1653,7 @@ static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
>> uint32_t value = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1557,11 +1662,15 @@ static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> value = smu_get_od_percentage(&(adev->smu), SMU_OD_MCLK);
>> else if (adev->powerplay.pp_funcs->get_mclk_od)
>> value = amdgpu_dpm_get_mclk_od(adev);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1578,7 +1687,7 @@ static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
>> int ret;
>> long int value;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = kstrtol(buf, 0, &value);
>> @@ -1592,6 +1701,8 @@ static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> value = smu_set_od_percentage(&(adev->smu), SMU_OD_MCLK, (uint32_t)value);
>> } else {
>> @@ -1606,6 +1717,8 @@ static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
>> }
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1641,7 +1754,7 @@ static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
>> ssize_t size;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(ddev->dev);
>> @@ -1650,6 +1763,8 @@ static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> size = smu_get_power_profile_mode(&adev->smu, buf);
>> else if (adev->powerplay.pp_funcs->get_power_profile_mode)
>> @@ -1657,6 +1772,8 @@ static ssize_t amdgpu_get_pp_power_profile_mode(struct device *dev,
>> else
>> size = snprintf(buf, PAGE_SIZE, "\n");
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1681,7 +1798,7 @@ static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
>> long int profile_mode = 0;
>> const char delimiter[3] = {' ', '\n', '\0'};
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> tmp[0] = *(buf);
>> @@ -1715,11 +1832,15 @@ static ssize_t amdgpu_set_pp_power_profile_mode(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> ret = smu_set_power_profile_mode(&adev->smu, parameter, parameter_size, true);
>> else if (adev->powerplay.pp_funcs->set_power_profile_mode)
>> ret = amdgpu_dpm_set_power_profile_mode(adev, parameter, parameter_size);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1745,7 +1866,7 @@ static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
>> struct amdgpu_device *adev = ddev->dev_private;
>> int r, value, size = sizeof(value);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(ddev->dev);
>> @@ -1754,9 +1875,11 @@ static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* read the IP busy sensor */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_LOAD,
>> (void *)&value, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>> @@ -1783,7 +1906,7 @@ static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
>> struct amdgpu_device *adev = ddev->dev_private;
>> int r, value, size = sizeof(value);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(ddev->dev);
>> @@ -1792,10 +1915,14 @@ static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> /* read the IP busy sensor */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MEM_LOAD,
>> (void *)&value, &size);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1826,7 +1953,7 @@ static ssize_t amdgpu_get_pcie_bw(struct device *dev,
>> uint64_t count0 = 0, count1 = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (adev->flags & AMD_IS_APU)
>> @@ -1841,8 +1968,12 @@ static ssize_t amdgpu_get_pcie_bw(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> amdgpu_asic_get_pcie_usage(adev, &count0, &count1);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(ddev->dev);
>> pm_runtime_put_autosuspend(ddev->dev);
>>
>> @@ -1867,7 +1998,7 @@ static ssize_t amdgpu_get_unique_id(struct device *dev,
>> struct drm_device *ddev = dev_get_drvdata(dev);
>> struct amdgpu_device *adev = ddev->dev_private;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (adev->unique_id)
>> @@ -2134,7 +2265,7 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
>> int channel = to_sensor_dev_attr(attr)->index;
>> int r, temp = 0, size = sizeof(temp);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (channel >= PP_TEMP_MAX)
>> @@ -2146,6 +2277,8 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> switch (channel) {
>> case PP_TEMP_JUNCTION:
>> /* get current junction temperature */
>> @@ -2167,6 +2300,8 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
>> break;
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2270,7 +2405,7 @@ static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
>> u32 pwm_mode = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2279,18 +2414,23 @@ static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> pwm_mode = smu_get_fan_control_mode(&adev->smu);
>> } else {
>> if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>>
>> pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2306,7 +2446,7 @@ static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
>> int err, ret;
>> int value;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = kstrtoint(buf, 10, &value);
>> @@ -2319,18 +2459,23 @@ static ssize_t amdgpu_hwmon_set_pwm1_enable(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> smu_set_fan_control_mode(&adev->smu, value);
>> } else {
>> if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>>
>> amdgpu_dpm_set_fan_control_mode(adev, value);
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2360,7 +2505,7 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
>> u32 value;
>> u32 pwm_mode;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2369,11 +2514,15 @@ static ssize_t amdgpu_hwmon_set_pwm1(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> pwm_mode = smu_get_fan_control_mode(&adev->smu);
>> else
>> pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
>>
>> + up_read(&adev->reset_sem);
>> +
>> if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
>> pr_info("manual fan speed control should be enabled first\n");
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> @@ -2414,7 +2563,7 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
>> int err;
>> u32 speed = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2423,6 +2572,8 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> err = smu_get_fan_speed_percent(&adev->smu, &speed);
>> else if (adev->powerplay.pp_funcs->get_fan_speed_percent)
>> @@ -2430,6 +2581,8 @@ static ssize_t amdgpu_hwmon_get_pwm1(struct device *dev,
>> else
>> err = -EINVAL;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2449,7 +2602,7 @@ static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
>> int err;
>> u32 speed = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2458,6 +2611,8 @@ static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> err = smu_get_fan_speed_rpm(&adev->smu, &speed);
>> else if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
>> @@ -2465,6 +2620,8 @@ static ssize_t amdgpu_hwmon_get_fan1_input(struct device *dev,
>> else
>> err = -EINVAL;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2483,7 +2640,7 @@ static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
>> u32 size = sizeof(min_rpm);
>> int r;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2492,9 +2649,13 @@ static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MIN_FAN_RPM,
>> (void *)&min_rpm, &size);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2513,7 +2674,7 @@ static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
>> u32 size = sizeof(max_rpm);
>> int r;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2522,9 +2683,13 @@ static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_MAX_FAN_RPM,
>> (void *)&max_rpm, &size);
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2542,7 +2707,7 @@ static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
>> int err;
>> u32 rpm = 0;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2551,6 +2716,8 @@ static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> err = smu_get_fan_speed_rpm(&adev->smu, &rpm);
>> else if (adev->powerplay.pp_funcs->get_fan_speed_rpm)
>> @@ -2558,6 +2725,8 @@ static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
>> else
>> err = -EINVAL;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2576,7 +2745,7 @@ static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
>> u32 value;
>> u32 pwm_mode;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2585,11 +2754,15 @@ static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> pwm_mode = smu_get_fan_control_mode(&adev->smu);
>> else
>> pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
>>
>> + up_read(&adev->reset_sem);
>> +
>> if (pwm_mode != AMD_FAN_CTRL_MANUAL) {
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -2603,6 +2776,8 @@ static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> err = smu_set_fan_speed_rpm(&adev->smu, value);
>> else if (adev->powerplay.pp_funcs->set_fan_speed_rpm)
>> @@ -2610,6 +2785,8 @@ static ssize_t amdgpu_hwmon_set_fan1_target(struct device *dev,
>> else
>> err = -EINVAL;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2627,7 +2804,7 @@ static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
>> u32 pwm_mode = 0;
>> int ret;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> ret = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2636,18 +2813,23 @@ static ssize_t amdgpu_hwmon_get_fan1_enable(struct device *dev,
>> return ret;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> pwm_mode = smu_get_fan_control_mode(&adev->smu);
>> } else {
>> if (!adev->powerplay.pp_funcs->get_fan_control_mode) {
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>>
>> pwm_mode = amdgpu_dpm_get_fan_control_mode(adev);
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2664,7 +2846,7 @@ static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
>> int value;
>> u32 pwm_mode;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> err = kstrtoint(buf, 10, &value);
>> @@ -2684,17 +2866,22 @@ static ssize_t amdgpu_hwmon_set_fan1_enable(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> smu_set_fan_control_mode(&adev->smu, pwm_mode);
>> } else {
>> if (!adev->powerplay.pp_funcs->set_fan_control_mode) {
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> + up_read(&adev->reset_sem);
>> return -EINVAL;
>> }
>> amdgpu_dpm_set_fan_control_mode(adev, pwm_mode);
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2709,7 +2896,7 @@ static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
>> u32 vddgfx;
>> int r, size = sizeof(vddgfx);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2718,9 +2905,11 @@ static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* get the voltage */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDGFX,
>> (void *)&vddgfx, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -2746,7 +2935,7 @@ static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
>> u32 vddnb;
>> int r, size = sizeof(vddnb);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> /* only APUs have vddnb */
>> @@ -2759,9 +2948,11 @@ static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* get the voltage */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_VDDNB,
>> (void *)&vddnb, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -2788,7 +2979,7 @@ static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
>> int r, size = sizeof(u32);
>> unsigned uw;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2797,9 +2988,11 @@ static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* get the voltage */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GPU_POWER,
>> (void *)&query, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -2829,7 +3022,7 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
>> ssize_t size;
>> int r;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2838,6 +3031,8 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> smu_get_power_limit(&adev->smu, &limit, true);
>> size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
>> @@ -2848,6 +3043,8 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
>> size = snprintf(buf, PAGE_SIZE, "\n");
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2863,7 +3060,7 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
>> ssize_t size;
>> int r;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2872,6 +3069,8 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev)) {
>> smu_get_power_limit(&adev->smu, &limit, false);
>> size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
>> @@ -2882,6 +3081,8 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
>> size = snprintf(buf, PAGE_SIZE, "\n");
>> }
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2898,7 +3099,7 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
>> int err;
>> u32 value;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> if (amdgpu_sriov_vf(adev))
>> @@ -2917,6 +3118,8 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
>> return err;
>> }
>>
>> + down_read(&adev->reset_sem);
>> +
>> if (is_support_sw_smu(adev))
>> err = smu_set_power_limit(&adev->smu, value);
>> else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit)
>> @@ -2924,6 +3127,8 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
>> else
>> err = -EINVAL;
>>
>> + up_read(&adev->reset_sem);
>> +
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>>
>> @@ -2941,7 +3146,7 @@ static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
>> uint32_t sclk;
>> int r, size = sizeof(sclk);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2950,9 +3155,11 @@ static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* get the sclk */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_SCLK,
>> (void *)&sclk, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -2978,7 +3185,7 @@ static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
>> uint32_t mclk;
>> int r, size = sizeof(mclk);
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(adev->ddev->dev);
>> @@ -2987,9 +3194,11 @@ static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> /* get the sclk */
>> r = amdgpu_dpm_read_sensor(adev, AMDGPU_PP_SENSOR_GFX_MCLK,
>> (void *)&mclk, &size);
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(adev->ddev->dev);
>> pm_runtime_put_autosuspend(adev->ddev->dev);
>> @@ -3870,7 +4079,7 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>> u32 flags = 0;
>> int r;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EPERM;
>>
>> r = pm_runtime_get_sync(dev->dev);
>> @@ -3879,7 +4088,10 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>> return r;
>> }
>>
>> + down_read(&adev->reset_sem);
>> amdgpu_device_ip_get_clockgating_state(adev, &flags);
>> + up_read(&adev->reset_sem);
>> +
>> seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags);
>> amdgpu_parse_cg_state(m, flags);
>> seq_printf(m, "\n");
>> @@ -3891,6 +4103,7 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>> return 0;
>> }
>>
>> + down_read(&adev->reset_sem);
>> if (!is_support_sw_smu(adev) &&
>> adev->powerplay.pp_funcs->debugfs_print_current_performance_level) {
>> mutex_lock(&adev->pm.mutex);
>> @@ -3903,6 +4116,7 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>> } else {
>> r = amdgpu_debugfs_pm_info_pp(m, adev);
>> }
>> + up_read(&adev->reset_sem);
>>
>> pm_runtime_mark_last_busy(dev->dev);
>> pm_runtime_put_autosuspend(dev->dev);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> index e20695b44dbe..ab0883eeadb3 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
>> @@ -1682,7 +1682,7 @@ static int psp_load_smu_fw(struct psp_context *psp)
>> return 0;
>>
>>
>> - if (adev->in_gpu_reset && ras && ras->supported) {
>> + if (atomic_read(&adev->in_gpu_reset) && ras && ras->supported) {
>> ret = amdgpu_dpm_set_mp1_state(adev, PP_MP1_STATE_UNLOAD);
>> if (ret) {
>> DRM_WARN("Failed to set MP1 state prepare for reload\n");
>> @@ -1796,7 +1796,7 @@ static int psp_load_fw(struct amdgpu_device *adev)
>> int ret;
>> struct psp_context *psp = &adev->psp;
>>
>> - if (amdgpu_sriov_vf(adev) && adev->in_gpu_reset) {
>> + if (amdgpu_sriov_vf(adev) && atomic_read(&adev->in_gpu_reset)) {
>> psp_ring_stop(psp, PSP_RING_TYPE__KM); /* should not destroy ring, only stop */
>> goto skip_memalloc;
>> }
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
>> index ab8e7c91c645..3e534262e381 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
>> @@ -1975,7 +1975,7 @@ int amdgpu_ras_late_init(struct amdgpu_device *adev,
>> amdgpu_ras_request_reset_on_boot(adev,
>> ras_block->block);
>> return 0;
>> - } else if (adev->in_suspend || adev->in_gpu_reset) {
>> + } else if (adev->in_suspend || atomic_read(&adev->in_gpu_reset)) {
>> /* in resume phase, if fail to enable ras,
>> * clean up all ras fs nodes, and disable ras */
>> goto cleanup;
>> @@ -1984,7 +1984,7 @@ int amdgpu_ras_late_init(struct amdgpu_device *adev,
>> }
>>
>> /* in resume phase, no need to create ras fs node */
>> - if (adev->in_suspend || adev->in_gpu_reset)
>> + if (adev->in_suspend || atomic_read(&adev->in_gpu_reset))
>> return 0;
>>
>> if (ih_info->cb) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> index 56beafbd3ab9..2e670aa68758 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>> @@ -2093,7 +2093,7 @@ void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
>> uint64_t size;
>> int r;
>>
>> - if (!adev->mman.initialized || adev->in_gpu_reset ||
>> + if (!adev->mman.initialized || atomic_read(&adev->in_gpu_reset) ||
>> adev->mman.buffer_funcs_enabled == enable)
>> return;
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
>> index 744404a05fee..da6fa28b1b5f 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
>> @@ -628,7 +628,7 @@ int amdgpu_ucode_init_bo(struct amdgpu_device *adev)
>> struct amdgpu_firmware_info *ucode = NULL;
>>
>> /* for baremetal, the ucode is allocated in gtt, so don't need to fill the bo when reset/suspend */
>> - if (!amdgpu_sriov_vf(adev) && (adev->in_gpu_reset || adev->in_suspend))
>> + if (!amdgpu_sriov_vf(adev) && (atomic_read(&adev->in_gpu_reset) || adev->in_suspend))
>> return 0;
>> /*
>> * if SMU loaded firmware, it needn't add SMC, UVD, and VCE
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
>> index f826945989c7..336fa8ba2465 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
>> @@ -325,9 +325,9 @@ static inline bool is_virtual_machine(void)
>> #define amdgpu_sriov_is_pp_one_vf(adev) \
>> ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF)
>> #define amdgpu_sriov_is_debug(adev) \
>> - ((!adev->in_gpu_reset) && adev->virt.tdr_debug)
>> + ((!atomic_read(&adev->in_gpu_reset)) && adev->virt.tdr_debug)
>> #define amdgpu_sriov_is_normal(adev) \
>> - ((!adev->in_gpu_reset) && (!adev->virt.tdr_debug))
>> + ((!atomic_read(&adev->in_gpu_reset)) && (!adev->virt.tdr_debug))
>>
>> bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
>> void amdgpu_virt_init_setting(struct amdgpu_device *adev);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> index a6170a346b39..b3c1e05da45e 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
>> @@ -6102,7 +6102,7 @@ static int gfx_v10_0_gfx_init_queue(struct amdgpu_ring *ring)
>> struct v10_gfx_mqd *mqd = ring->mqd_ptr;
>> int mqd_idx = ring - &adev->gfx.gfx_ring[0];
>>
>> - if (!adev->in_gpu_reset && !adev->in_suspend) {
>> + if (!atomic_read(&adev->in_gpu_reset) && !adev->in_suspend) {
>> memset((void *)mqd, 0, sizeof(*mqd));
>> mutex_lock(&adev->srbm_mutex);
>> nv_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
>> @@ -6114,7 +6114,7 @@ static int gfx_v10_0_gfx_init_queue(struct amdgpu_ring *ring)
>> mutex_unlock(&adev->srbm_mutex);
>> if (adev->gfx.me.mqd_backup[mqd_idx])
>> memcpy(adev->gfx.me.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
>> - } else if (adev->in_gpu_reset) {
>> + } else if (atomic_read(&adev->in_gpu_reset)) {
>> /* reset mqd with the backup copy */
>> if (adev->gfx.me.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.me.mqd_backup[mqd_idx], sizeof(*mqd));
>> @@ -6463,7 +6463,7 @@ static int gfx_v10_0_kiq_init_queue(struct amdgpu_ring *ring)
>>
>> gfx_v10_0_kiq_setting(ring);
>>
>> - if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
>> @@ -6499,7 +6499,7 @@ static int gfx_v10_0_kcq_init_queue(struct amdgpu_ring *ring)
>> struct v10_compute_mqd *mqd = ring->mqd_ptr;
>> int mqd_idx = ring - &adev->gfx.compute_ring[0];
>>
>> - if (!adev->in_gpu_reset && !adev->in_suspend) {
>> + if (!atomic_read(&adev->in_gpu_reset) && !adev->in_suspend) {
>> memset((void *)mqd, 0, sizeof(*mqd));
>> mutex_lock(&adev->srbm_mutex);
>> nv_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
>> @@ -6509,7 +6509,7 @@ static int gfx_v10_0_kcq_init_queue(struct amdgpu_ring *ring)
>>
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
>> - } else if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + } else if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>> index 33f1c4a46ebe..c70f3bc5cea2 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
>> @@ -4632,7 +4632,7 @@ static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring)
>>
>> gfx_v8_0_kiq_setting(ring);
>>
>> - if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct vi_mqd_allocation));
>> @@ -4669,7 +4669,7 @@ static int gfx_v8_0_kcq_init_queue(struct amdgpu_ring *ring)
>> struct vi_mqd *mqd = ring->mqd_ptr;
>> int mqd_idx = ring - &adev->gfx.compute_ring[0];
>>
>> - if (!adev->in_gpu_reset && !adev->in_suspend) {
>> + if (!atomic_read(&adev->in_gpu_reset) && !adev->in_suspend) {
>> memset((void *)mqd, 0, sizeof(struct vi_mqd_allocation));
>> ((struct vi_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
>> ((struct vi_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
>> @@ -4681,7 +4681,7 @@ static int gfx_v8_0_kcq_init_queue(struct amdgpu_ring *ring)
>>
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(struct vi_mqd_allocation));
>> - } else if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + } else if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct vi_mqd_allocation));
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> index cb9d60a4e05e..9020a0f40e28 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
>> @@ -3684,7 +3684,7 @@ static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
>>
>> gfx_v9_0_kiq_setting(ring);
>>
>> - if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct v9_mqd_allocation));
>> @@ -3722,7 +3722,7 @@ static int gfx_v9_0_kcq_init_queue(struct amdgpu_ring *ring)
>> struct v9_mqd *mqd = ring->mqd_ptr;
>> int mqd_idx = ring - &adev->gfx.compute_ring[0];
>>
>> - if (!adev->in_gpu_reset && !adev->in_suspend) {
>> + if (!atomic_read(&adev->in_gpu_reset) && !adev->in_suspend) {
>> memset((void *)mqd, 0, sizeof(struct v9_mqd_allocation));
>> ((struct v9_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
>> ((struct v9_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
>> @@ -3734,7 +3734,7 @@ static int gfx_v9_0_kcq_init_queue(struct amdgpu_ring *ring)
>>
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(struct v9_mqd_allocation));
>> - } else if (adev->in_gpu_reset) { /* for GPU_RESET case */
>> + } else if (atomic_read(&adev->in_gpu_reset)) { /* for GPU_RESET case */
>> /* reset MQD to a clean status */
>> if (adev->gfx.mec.mqd_backup[mqd_idx])
>> memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct v9_mqd_allocation));
>> @@ -3928,7 +3928,7 @@ static int gfx_v9_0_hw_fini(void *handle)
>> /* Use deinitialize sequence from CAIL when unbinding device from driver,
>> * otherwise KIQ is hanging when binding back
>> */
>> - if (!adev->in_gpu_reset && !adev->in_suspend) {
>> + if (!atomic_read(&adev->in_gpu_reset) && !adev->in_suspend) {
>> mutex_lock(&adev->srbm_mutex);
>> soc15_grbm_select(adev, adev->gfx.kiq.ring.me,
>> adev->gfx.kiq.ring.pipe,
>> @@ -4086,7 +4086,7 @@ static uint64_t gfx_v9_0_kiq_read_clock(struct amdgpu_device *adev)
>> *
>> * also don't wait anymore for IRQ context
>> * */
>> - if (r < 1 && (adev->in_gpu_reset || in_interrupt()))
>> + if (r < 1 && (atomic_read(&adev->in_gpu_reset) || in_interrupt()))
>> goto failed_kiq_read;
>>
>> might_sleep();
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
>> index 8f29f79f820d..b761bf59ed11 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
>> @@ -356,7 +356,7 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
>> */
>> if (adev->gfx.kiq.ring.sched.ready &&
>> (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
>> - !adev->in_gpu_reset) {
>> + !atomic_read(&adev->in_gpu_reset)) {
>>
>> struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
>> const unsigned eng = 17;
>> @@ -381,7 +381,7 @@ static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
>>
>> if (!adev->mman.buffer_funcs_enabled ||
>> !adev->ib_pool_ready ||
>> - adev->in_gpu_reset ||
>> + atomic_read(&adev->in_gpu_reset) ||
>> ring->sched.ready == false) {
>> gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0);
>> mutex_unlock(&adev->mman.gtt_window_lock);
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> index e18296dc1386..d83b83459ba7 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
>> @@ -434,7 +434,7 @@ static int gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
>> int vmid;
>> unsigned int tmp;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> for (vmid = 1; vmid < 16; vmid++) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> index a9e722b8a458..5854df6dcc32 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
>> @@ -635,7 +635,7 @@ static int gmc_v8_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
>> int vmid;
>> unsigned int tmp;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> for (vmid = 1; vmid < 16; vmid++) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> index 6e4f3ff4810f..b82a1af86f43 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
>> @@ -501,7 +501,7 @@ static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
>> */
>> if (adev->gfx.kiq.ring.sched.ready &&
>> (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
>> - !adev->in_gpu_reset) {
>> + !atomic_read(&adev->in_gpu_reset)) {
>> uint32_t req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
>> uint32_t ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
>>
>> @@ -596,7 +596,7 @@ static int gmc_v9_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
>> struct amdgpu_ring *ring = &adev->gfx.kiq.ring;
>> struct amdgpu_kiq *kiq = &adev->gfx.kiq;
>>
>> - if (adev->in_gpu_reset)
>> + if (atomic_read(&adev->in_gpu_reset))
>> return -EIO;
>>
>> if (ring->sched.ready) {
>> diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
>> index 5fd67e1cc2a0..fe31cbeccfe9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
>> @@ -238,20 +238,16 @@ static void xgpu_ai_mailbox_flr_work(struct work_struct *work)
>> struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, flr_work);
>> struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
>> int timeout = AI_MAILBOX_POLL_FLR_TIMEDOUT;
>> - int locked;
>>
>> /* block amdgpu_gpu_recover till msg FLR COMPLETE received,
>> * otherwise the mailbox msg will be ruined/reseted by
>> * the VF FLR.
>> *
>> - * we can unlock the lock_reset to allow "amdgpu_job_timedout"
>> + * we can unlock the reset_sem to allow "amdgpu_job_timedout"
>> * to run gpu_recover() after FLR_NOTIFICATION_CMPL received
>> * which means host side had finished this VF's FLR.
>> */
>> - locked = mutex_trylock(&adev->lock_reset);
>> - if (locked)
>> - adev->in_gpu_reset = true;
>> -
>> + down_read(&adev->reset_sem);
>> do {
>> if (xgpu_ai_mailbox_peek_msg(adev) == IDH_FLR_NOTIFICATION_CMPL)
>> goto flr_done;
>> @@ -261,10 +257,7 @@ static void xgpu_ai_mailbox_flr_work(struct work_struct *work)
>> } while (timeout > 1);
>>
>> flr_done:
>> - if (locked) {
>> - adev->in_gpu_reset = false;
>> - mutex_unlock(&adev->lock_reset);
>> - }
>> + up_read(&adev->reset_sem);
>>
>> /* Trigger recovery for world switch failure if no TDR */
>> if (amdgpu_device_should_recover_gpu(adev)
>> diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
>> index ce2bf1fb79ed..6f55172e8337 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
>> @@ -259,20 +259,16 @@ static void xgpu_nv_mailbox_flr_work(struct work_struct *work)
>> struct amdgpu_virt *virt = container_of(work, struct amdgpu_virt, flr_work);
>> struct amdgpu_device *adev = container_of(virt, struct amdgpu_device, virt);
>> int timeout = NV_MAILBOX_POLL_FLR_TIMEDOUT;
>> - int locked;
>>
>> /* block amdgpu_gpu_recover till msg FLR COMPLETE received,
>> * otherwise the mailbox msg will be ruined/reseted by
>> * the VF FLR.
>> *
>> - * we can unlock the lock_reset to allow "amdgpu_job_timedout"
>> + * we can unlock the reset_sem to allow "amdgpu_job_timedout"
>> * to run gpu_recover() after FLR_NOTIFICATION_CMPL received
>> * which means host side had finished this VF's FLR.
>> */
>> - locked = mutex_trylock(&adev->lock_reset);
>> - if (locked)
>> - adev->in_gpu_reset = true;
>> -
>> + down_read(&adev->reset_sem);
>> do {
>> if (xgpu_nv_mailbox_peek_msg(adev) == IDH_FLR_NOTIFICATION_CMPL)
>> goto flr_done;
>> @@ -282,10 +278,7 @@ static void xgpu_nv_mailbox_flr_work(struct work_struct *work)
>> } while (timeout > 1);
>>
>> flr_done:
>> - if (locked) {
>> - adev->in_gpu_reset = false;
>> - mutex_unlock(&adev->lock_reset);
>> - }
>> + up_read(&adev->reset_sem);
>>
>> /* Trigger recovery for world switch failure if no TDR */
>> if (amdgpu_device_should_recover_gpu(adev)
>> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> index e9b96ad3d9a5..393642c32387 100644
>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
>> @@ -1482,13 +1482,20 @@ static int kfd_ioctl_map_memory_to_gpu(struct file *filep,
>>
>> /* Flush TLBs after waiting for the page table updates to complete */
>> for (i = 0; i < args->n_devices; i++) {
>> + struct device_queue_manager *dqm;
>> +
>> peer = kfd_device_by_id(devices_arr[i]);
>> if (WARN_ON_ONCE(!peer))
>> continue;
>> peer_pdd = kfd_get_process_device_data(peer, p);
>> if (WARN_ON_ONCE(!peer_pdd))
>> continue;
>> +
>> + dqm = peer_pdd->dev->dqm;
>> +
>> + dqm_lock(dqm);
>> kfd_flush_tlb(peer_pdd);
>> + dqm_unlock(dqm);
>> }
>>
>> kfree(devices_arr);
>> 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 dd550025d1c1..0b5409cede52 100644
>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
>> @@ -304,15 +304,17 @@ static void deallocate_vmid(struct device_queue_manager *dqm,
>> struct qcm_process_device *qpd,
>> struct queue *q)
>> {
>> - /* On GFX v7, CP doesn't flush TC at dequeue */
>> - if (q->device->device_info->asic_family == CHIP_HAWAII)
>> - if (flush_texture_cache_nocpsch(q->device, qpd))
>> - pr_err("Failed to flush TC\n");
>> + if (!dqm->is_resetting) {
>> + /* On GFX v7, CP doesn't flush TC at dequeue */
>> + if (q->device->device_info->asic_family == CHIP_HAWAII)
>> + if (flush_texture_cache_nocpsch(q->device, qpd))
>> + pr_err("Failed to flush TC\n");
>>
>> - kfd_flush_tlb(qpd_to_pdd(qpd));
>> + kfd_flush_tlb(qpd_to_pdd(qpd));
>>
>> - /* Release the vmid mapping */
>> - set_pasid_vmid_mapping(dqm, 0, qpd->vmid);
>> + /* Release the vmid mapping */
>> + set_pasid_vmid_mapping(dqm, 0, qpd->vmid);
>> + }
>> dqm->vmid_pasid[qpd->vmid] = 0;
>>
>> qpd->vmid = 0;
>> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
>> index 013c2b018edc..71be897d4c2a 100644
>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
>> @@ -1551,6 +1551,10 @@ int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process,
>> void kfd_flush_tlb(struct kfd_process_device *pdd)
>> {
>> struct kfd_dev *dev = pdd->dev;
>> + struct device_queue_manager *dqm = dev->dqm;
>> +
>> + if (dqm->is_resetting)
>> + return;
>>
>> if (dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) {
>> /* Nothing to flush until a VMID is assigned, which
>> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> index b4e120e95438..db332282c01e 100644
>> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
>> @@ -1640,7 +1640,7 @@ static int dm_suspend(void *handle)
>> struct amdgpu_display_manager *dm = &adev->dm;
>> int ret = 0;
>>
>> - if (adev->in_gpu_reset) {
>> + if (atomic_read(&adev->in_gpu_reset)) {
>> mutex_lock(&dm->dc_lock);
>> dm->cached_dc_state = dc_copy_state(dm->dc->current_state);
>>
>> @@ -1826,7 +1826,7 @@ static int dm_resume(void *handle)
>> struct dc_state *dc_state;
>> int i, r, j;
>>
>> - if (adev->in_gpu_reset) {
>> + if (atomic_read(&adev->in_gpu_reset)) {
>> dc_state = dm->cached_dc_state;
>>
>> r = dm_dmub_hw_init(adev);
>> diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
>> index fe4948aa662f..69134a0d660c 100644
>> --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
>> +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
>> @@ -1341,7 +1341,7 @@ static int smu_disable_dpms(struct smu_context *smu)
>> uint64_t features_to_disable;
>> int ret = 0;
>> bool use_baco = !smu->is_apu &&
>> - ((adev->in_gpu_reset &&
>> + ((atomic_read(&adev->in_gpu_reset) &&
>> (amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)) ||
>> ((adev->in_runpm || adev->in_hibernate) && amdgpu_asic_supports_baco(adev)));
>>
>> diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
>> index 3b8839641770..13e304066d94 100644
>> --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
>> +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
>> @@ -484,7 +484,7 @@ static int vega20_setup_asic_task(struct pp_hwmgr *hwmgr)
>> {
>> struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);
>> int ret = 0;
>> - bool use_baco = (adev->in_gpu_reset &&
>> + bool use_baco = (atomic_read(&adev->in_gpu_reset) &&
>> (amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)) ||
>> (adev->in_runpm && amdgpu_asic_supports_baco(adev));
>>
More information about the amd-gfx
mailing list