Message-ID: <e207fb04-b12f-9612-2c16-2d793117f17e@igalia.com>
Date:   Mon, 25 Jul 2022 13:15:01 -0300
From:   André Almeida <andrealmeid@...lia.com>
To:     "Quan, Evan" <Evan.Quan@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "Zhang, Hawking" <Hawking.Zhang@....com>,
        "Zhou1, Tao" <Tao.Zhou1@....com>,
        "Kuehling, Felix" <Felix.Kuehling@....com>,
        "Xiao, Jack" <Jack.Xiao@....com>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "StDenis, Tom" <Tom.StDenis@....com>,
        "Siqueira, Rodrigo" <Rodrigo.Siqueira@....com>
Cc:     "kernel-dev@...lia.com" <kernel-dev@...lia.com>
Subject: Re: [PATCH 1/4] drm/amd: Add detailed GFXOFF stats to debugfs

Às 10:04 de 25/07/22, André Almeida escreveu:
> Às 07:27 de 25/07/22, Quan, Evan escreveu:
>> [AMD Official Use Only - General]
>>
>> Using "uint64_t" instead of "uint32_t" for entry counter may be better.
>>
> 
> Indeed, it's a good idea. I'll send a v2 with that change, thanks.
> 

However, SMU messaging reads a 32bit register to get the entrycount from
the pwfw, so would keep with with the risk of overflow anyway right?

>> BR
>> Evan
>>> -----Original Message-----
>>> From: amd-gfx <amd-gfx-bounces@...ts.freedesktop.org> On Behalf Of
>>> André Almeida
>>> Sent: Saturday, July 23, 2022 4:34 AM
>>> To: Deucher, Alexander <Alexander.Deucher@....com>; Koenig, Christian
>>> <Christian.Koenig@....com>; Pan, Xinhui <Xinhui.Pan@....com>; David
>>> Airlie <airlied@...ux.ie>; Daniel Vetter <daniel@...ll.ch>; Zhang, Hawking
>>> <Hawking.Zhang@....com>; Zhou1, Tao <Tao.Zhou1@....com>; Kuehling,
>>> Felix <Felix.Kuehling@....com>; Xiao, Jack <Jack.Xiao@....com>; amd-
>>> gfx@...ts.freedesktop.org; dri-devel@...ts.freedesktop.org; linux-
>>> kernel@...r.kernel.org; StDenis, Tom <Tom.StDenis@....com>; Siqueira,
>>> Rodrigo <Rodrigo.Siqueira@....com>
>>> Cc: André Almeida <andrealmeid@...lia.com>; kernel-dev@...lia.com
>>> Subject: [PATCH 1/4] drm/amd: Add detailed GFXOFF stats to debugfs
>>>
>>> Add debugfs interface to log GFXOFF statistics:
>>>
>>> - Read amdgpu_gfxoff_count to get the total GFXOFF entry count at the
>>>   time of query since system power-up
>>>
>>> - Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop.
>>>   Read it to get average GFXOFF residency % multiplied by 100
>>>   during the last logging interval.
>>>
>>> Both features are designed to be keep the values persistent between
>>> suspends.
>>>
>>> Signed-off-by: André Almeida <andrealmeid@...lia.com>
>>> ---
>>>  drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c   | 168
>>> ++++++++++++++++++
>>>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    |   2 +
>>>  drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c       |  39 ++++
>>>  drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h       |   6 +
>>>  drivers/gpu/drm/amd/pm/amdgpu_dpm.c           |  45 +++++
>>>  drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |   3 +
>>>  drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c     |  34 +++-
>>>  drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h |  22 +++
>>>  drivers/gpu/drm/amd/pm/swsmu/smu_internal.h   |   3 +
>>>  9 files changed, 321 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>>> index e2eec985adb3..edf90a9ba980 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
>>> @@ -1042,6 +1042,157 @@ static ssize_t amdgpu_debugfs_gpr_read(struct
>>> file *f, char __user *buf,
>>>  	return r;
>>>  }
>>>
>>> +/**
>>> + * amdgpu_debugfs_gfxoff_residency_read - Read GFXOFF residency
>>> + *
>>> + * @f: open file handle
>>> + * @buf: User buffer to store read data in
>>> + * @size: Number of bytes to read
>>> + * @pos:  Offset to seek to
>>> + *
>>> + * Read the last residency value logged. It doesn't auto update, one needs
>>> to
>>> + * stop logging before getting the current value.
>>> + */
>>> +static ssize_t amdgpu_debugfs_gfxoff_residency_read(struct file *f, char
>>> __user *buf,
>>> +						    size_t size, loff_t *pos)
>>> +{
>>> +	struct amdgpu_device *adev = file_inode(f)->i_private;
>>> +	ssize_t result = 0;
>>> +	int r;
>>> +
>>> +	if (size & 0x3 || *pos & 0x3)
>>> +		return -EINVAL;
>>> +
>>> +	r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
>>> +	if (r < 0) {
>>> +		pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +		return r;
>>> +	}
>>> +
>>> +	while (size) {
>>> +		uint32_t value;
>>> +
>>> +		r = amdgpu_get_gfx_off_residency(adev, &value);
>>> +		if (r)
>>> +			goto out;
>>> +
>>> +		r = put_user(value, (uint32_t *)buf);
>>> +		if (r)
>>> +			goto out;
>>> +
>>> +		result += 4;
>>> +		buf += 4;
>>> +		*pos += 4;
>>> +		size -= 4;
>>> +	}
>>> +
>>> +	r = result;
>>> +out:
>>> +	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
>>> +	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +
>>> +	return r;
>>> +}
>>> +
>>> +/**
>>> + * amdgpu_debugfs_gfxoff_residency_write - Log GFXOFF Residency
>>> + *
>>> + * @f: open file handle
>>> + * @buf: User buffer to write data from
>>> + * @size: Number of bytes to write
>>> + * @pos:  Offset to seek to
>>> + *
>>> + * Write a 32-bit non-zero to start logging; write a 32-bit zero to stop
>>> + */
>>> +static ssize_t amdgpu_debugfs_gfxoff_residency_write(struct file *f, const
>>> char __user *buf,
>>> +						     size_t size, loff_t *pos)
>>> +{
>>> +	struct amdgpu_device *adev = file_inode(f)->i_private;
>>> +	ssize_t result = 0;
>>> +	int r;
>>> +
>>> +	if (size & 0x3 || *pos & 0x3)
>>> +		return -EINVAL;
>>> +
>>> +	r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
>>> +	if (r < 0) {
>>> +		pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +		return r;
>>> +	}
>>> +
>>> +	while (size) {
>>> +		u32 value;
>>> +
>>> +		r = get_user(value, (uint32_t *)buf);
>>> +		if (r)
>>> +			goto out;
>>> +
>>> +		amdgpu_set_gfx_off_residency(adev, value ? true : false);
>>> +
>>> +		result += 4;
>>> +		buf += 4;
>>> +		*pos += 4;
>>> +		size -= 4;
>>> +	}
>>> +
>>> +	r = result;
>>> +out:
>>> +	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
>>> +	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +
>>> +	return r;
>>> +}
>>> +
>>> +
>>> +/**
>>> + * amdgpu_debugfs_gfxoff_count_read - Read GFXOFF entry count
>>> + *
>>> + * @f: open file handle
>>> + * @buf: User buffer to store read data in
>>> + * @size: Number of bytes to read
>>> + * @pos:  Offset to seek to
>>> + */
>>> +static ssize_t amdgpu_debugfs_gfxoff_count_read(struct file *f, char
>>> __user *buf,
>>> +						size_t size, loff_t *pos)
>>> +{
>>> +	struct amdgpu_device *adev = file_inode(f)->i_private;
>>> +	ssize_t result = 0;
>>> +	int r;
>>> +
>>> +	if (size & 0x3 || *pos & 0x3)
>>> +		return -EINVAL;
>>> +
>>> +	r = pm_runtime_get_sync(adev_to_drm(adev)->dev);
>>> +	if (r < 0) {
>>> +		pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +		return r;
>>> +	}
>>> +
>>> +	while (size) {
>>> +		u32 value;
>>> +
>>> +		r = amdgpu_get_gfx_off_entrycount(adev, &value);
>>> +		if (r)
>>> +			goto out;
>>> +
>>> +		r = put_user(value, (uint32_t *)buf);
>>> +		if (r)
>>> +			goto out;
>>> +
>>> +		result += 4;
>>> +		buf += 4;
>>> +		*pos += 4;
>>> +		size -= 4;
>>> +	}
>>> +
>>> +	r = result;
>>> +out:
>>> +	pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
>>> +	pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
>>> +
>>> +	return r;
>>> +}
>>> +
>>>  /**
>>>   * amdgpu_debugfs_gfxoff_write - Enable/disable GFXOFF
>>>   *
>>> @@ -1249,6 +1400,19 @@ static const struct file_operations
>>> amdgpu_debugfs_gfxoff_status_fops = {
>>>  	.llseek = default_llseek
>>>  };
>>>
>>> +static const struct file_operations amdgpu_debugfs_gfxoff_count_fops = {
>>> +	.owner = THIS_MODULE,
>>> +	.read = amdgpu_debugfs_gfxoff_count_read,
>>> +	.llseek = default_llseek
>>> +};
>>> +
>>> +static const struct file_operations amdgpu_debugfs_gfxoff_residency_fops
>>> = {
>>> +	.owner = THIS_MODULE,
>>> +	.read = amdgpu_debugfs_gfxoff_residency_read,
>>> +	.write = amdgpu_debugfs_gfxoff_residency_write,
>>> +	.llseek = default_llseek
>>> +};
>>> +
>>>  static const struct file_operations *debugfs_regs[] = {
>>>  	&amdgpu_debugfs_regs_fops,
>>>  	&amdgpu_debugfs_regs2_fops,
>>> @@ -1261,6 +1425,8 @@ static const struct file_operations *debugfs_regs[]
>>> = {
>>>  	&amdgpu_debugfs_gpr_fops,
>>>  	&amdgpu_debugfs_gfxoff_fops,
>>>  	&amdgpu_debugfs_gfxoff_status_fops,
>>> +	&amdgpu_debugfs_gfxoff_count_fops,
>>> +	&amdgpu_debugfs_gfxoff_residency_fops,
>>>  };
>>>
>>>  static const char *debugfs_regs_names[] = {
>>> @@ -1275,6 +1441,8 @@ static const char *debugfs_regs_names[] = {
>>>  	"amdgpu_gpr",
>>>  	"amdgpu_gfxoff",
>>>  	"amdgpu_gfxoff_status",
>>> +	"amdgpu_gfxoff_count",
>>> +	"amdgpu_gfxoff_residency",
>>>  };
>>>
>>>  /**
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>> index b79ee4ffb879..15a95bc2c211 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
>>> @@ -3576,6 +3576,8 @@ int amdgpu_device_init(struct amdgpu_device
>>> *adev,
>>>  	INIT_WORK(&adev->xgmi_reset_work,
>>> amdgpu_device_xgmi_reset_func);
>>>
>>>  	adev->gfx.gfx_off_req_count = 1;
>>> +	adev->gfx.gfx_off_residency = 0;
>>> +	adev->gfx.gfx_off_entrycount = 0;
>>>  	adev->pm.ac_power = power_supply_is_system_supplied() > 0;
>>>
>>>  	atomic_set(&adev->throttling_logging_enabled, 1);
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>>> index 222d3d7ea076..3675c1b899db 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
>>> @@ -610,6 +610,45 @@ void amdgpu_gfx_off_ctrl(struct amdgpu_device
>>> *adev, bool enable)
>>>  	mutex_unlock(&adev->gfx.gfx_off_mutex);
>>>  }
>>>
>>> +int amdgpu_set_gfx_off_residency(struct amdgpu_device *adev, bool
>>> value)
>>> +{
>>> +	int r = 0;
>>> +
>>> +	mutex_lock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	r = amdgpu_dpm_set_residency_gfxoff(adev, value);
>>> +
>>> +	mutex_unlock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	return r;
>>> +}
>>> +
>>> +int amdgpu_get_gfx_off_residency(struct amdgpu_device *adev, u32
>>> *value)
>>> +{
>>> +	int r = 0;
>>> +
>>> +	mutex_lock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	r = amdgpu_dpm_get_residency_gfxoff(adev, value);
>>> +
>>> +	mutex_unlock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	return r;
>>> +}
>>> +
>>> +int amdgpu_get_gfx_off_entrycount(struct amdgpu_device *adev, u32
>>> *value)
>>> +{
>>> +	int r = 0;
>>> +
>>> +	mutex_lock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	r = amdgpu_dpm_get_entrycount_gfxoff(adev, value);
>>> +
>>> +	mutex_unlock(&adev->gfx.gfx_off_mutex);
>>> +
>>> +	return r;
>>> +}
>>> +
>>>  int amdgpu_get_gfx_off_status(struct amdgpu_device *adev, uint32_t
>>> *value)
>>>  {
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> index 23a696d38390..f06e979e2565 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
>>> @@ -336,6 +336,8 @@ struct amdgpu_gfx {
>>>  	struct mutex                    gfx_off_mutex;
>>>  	uint32_t                        gfx_off_req_count; /* default 1, enable gfx off:
>>> dec 1, disable gfx off: add 1 */
>>>  	struct delayed_work             gfx_off_delay_work;
>>> +	uint32_t                        gfx_off_residency;
>>> +	uint32_t                        gfx_off_entrycount;
>>>
>>>  	/* pipe reservation */
>>>  	struct mutex			pipe_reserve_mutex;
>>> @@ -407,6 +409,10 @@ bool amdgpu_gfx_is_me_queue_enabled(struct
>>> amdgpu_device *adev, int me,
>>>  void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable);
>>>  int amdgpu_get_gfx_off_status(struct amdgpu_device *adev, uint32_t
>>> *value);
>>>  int amdgpu_gfx_ras_late_init(struct amdgpu_device *adev, struct
>>> ras_common_if *ras_block);
>>> +void amdgpu_gfx_ras_fini(struct amdgpu_device *adev);
>>> +int amdgpu_get_gfx_off_entrycount(struct amdgpu_device *adev, u32
>>> *value);
>>> +int amdgpu_get_gfx_off_residency(struct amdgpu_device *adev, u32
>>> *residency);
>>> +int amdgpu_set_gfx_off_residency(struct amdgpu_device *adev, bool
>>> value);
>>>  int amdgpu_gfx_process_ras_data_cb(struct amdgpu_device *adev,
>>>  		void *err_data,
>>>  		struct amdgpu_iv_entry *entry);
>>> diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
>>> b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
>>> index 956b6ce81c84..df87d0768fd7 100644
>>> --- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
>>> +++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
>>> @@ -668,6 +668,51 @@ int amdgpu_dpm_wait_for_event(struct
>>> amdgpu_device *adev,
>>>  	return ret;
>>>  }
>>>
>>> +int amdgpu_dpm_set_residency_gfxoff(struct amdgpu_device *adev, bool
>>> value)
>>> +{
>>> +	struct smu_context *smu = adev->powerplay.pp_handle;
>>> +	int ret = 0;
>>> +
>>> +	if (!is_support_sw_smu(adev))
>>> +		return -EOPNOTSUPP;
>>> +
>>> +	mutex_lock(&adev->pm.mutex);
>>> +	ret = smu_set_residency_gfxoff(smu, value);
>>> +	mutex_unlock(&adev->pm.mutex);
>>> +
>>> +	return ret;
>>> +}
>>> +
>>> +int amdgpu_dpm_get_residency_gfxoff(struct amdgpu_device *adev, u32
>>> *value)
>>> +{
>>> +	struct smu_context *smu = adev->powerplay.pp_handle;
>>> +	int ret = 0;
>>> +
>>> +	if (!is_support_sw_smu(adev))
>>> +		return -EOPNOTSUPP;
>>> +
>>> +	mutex_lock(&adev->pm.mutex);
>>> +	ret = smu_get_residency_gfxoff(smu, value);
>>> +	mutex_unlock(&adev->pm.mutex);
>>> +
>>> +	return ret;
>>> +}
>>> +
>>> +int amdgpu_dpm_get_entrycount_gfxoff(struct amdgpu_device *adev,
>>> u32 *value)
>>> +{
>>> +	struct smu_context *smu = adev->powerplay.pp_handle;
>>> +	int ret = 0;
>>> +
>>> +	if (!is_support_sw_smu(adev))
>>> +		return -EOPNOTSUPP;
>>> +
>>> +	mutex_lock(&adev->pm.mutex);
>>> +	ret = smu_get_entrycount_gfxoff(smu, value);
>>> +	mutex_unlock(&adev->pm.mutex);
>>> +
>>> +	return ret;
>>> +}
>>> +
>>>  int amdgpu_dpm_get_status_gfxoff(struct amdgpu_device *adev, uint32_t
>>> *value)
>>>  {
>>>  	struct smu_context *smu = adev->powerplay.pp_handle;
>>> diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
>>> b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
>>> index 65624d091ed2..83a83e93037c 100644
>>> --- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
>>> +++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
>>> @@ -435,6 +435,9 @@ int amdgpu_dpm_set_soft_freq_range(struct
>>> amdgpu_device *adev,
>>>  int amdgpu_dpm_write_watermarks_table(struct amdgpu_device *adev);
>>>  int amdgpu_dpm_wait_for_event(struct amdgpu_device *adev, enum
>>> smu_event_type event,
>>>  		       uint64_t event_arg);
>>> +int amdgpu_dpm_get_residency_gfxoff(struct amdgpu_device *adev, u32
>>> *value);
>>> +int amdgpu_dpm_set_residency_gfxoff(struct amdgpu_device *adev, bool
>>> value);
>>> +int amdgpu_dpm_get_entrycount_gfxoff(struct amdgpu_device *adev,
>>> u32 *value);
>>>  int amdgpu_dpm_get_status_gfxoff(struct amdgpu_device *adev, uint32_t
>>> *value);
>>>  uint64_t amdgpu_dpm_get_thermal_throttling_counter(struct
>>> amdgpu_device *adev);
>>>  void amdgpu_dpm_gfx_state_change(struct amdgpu_device *adev,
>>> diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
>>> b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
>>> index fd79b213fab4..cfc3b9d749bf 100644
>>> --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
>>> +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
>>> @@ -90,6 +90,30 @@ static int smu_sys_set_pp_feature_mask(void *handle,
>>>  	return smu_set_pp_feature_mask(smu, new_mask);
>>>  }
>>>
>>> +int smu_set_residency_gfxoff(struct smu_context *smu, bool value)
>>> +{
>>> +	if (!smu->ppt_funcs->set_gfx_off_residency)
>>> +		return -EINVAL;
>>> +
>>> +	return smu_set_gfx_off_residency(smu, value);
>>> +}
>>> +
>>> +int smu_get_residency_gfxoff(struct smu_context *smu, u32 *value)
>>> +{
>>> +	if (!smu->ppt_funcs->get_gfx_off_residency)
>>> +		return -EINVAL;
>>> +
>>> +	return smu_get_gfx_off_residency(smu, value);
>>> +}
>>> +
>>> +int smu_get_entrycount_gfxoff(struct smu_context *smu, u32 *value)
>>> +{
>>> +	if (!smu->ppt_funcs->get_gfx_off_entrycount)
>>> +		return -EINVAL;
>>> +
>>> +	return smu_get_gfx_off_entrycount(smu, value);
>>> +}
>>> +
>>>  int smu_get_status_gfxoff(struct smu_context *smu, uint32_t *value)
>>>  {
>>>  	if (!smu->ppt_funcs->get_gfx_off_status)
>>> @@ -1573,7 +1597,7 @@ static int smu_suspend(void *handle)
>>>  {
>>>  	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>>>  	struct smu_context *smu = adev->powerplay.pp_handle;
>>> -	int ret;
>>> +	int ret, count;
>>>
>>>  	if (amdgpu_sriov_vf(adev)&& !amdgpu_sriov_is_pp_one_vf(adev))
>>>  		return 0;
>>> @@ -1591,6 +1615,14 @@ static int smu_suspend(void *handle)
>>>
>>>  	smu_set_gfx_cgpg(smu, false);
>>>
>>> +	/*
>>> +	 * pwfw resets entrycount when device is suspended, so we save
>>> the
>>> +	 * last value to be used when we resume to keep it consistent
>>> +	 */
>>> +	ret = smu_get_entrycount_gfxoff(smu, &count);
>>> +	if (!ret)
>>> +		adev->gfx.gfx_off_entrycount = count;
>>> +
>>>  	return 0;
>>>  }
>>>
>>> diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
>>> b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
>>> index b81c657c7386..9827075b768e 100644
>>> --- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
>>> +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
>>> @@ -1111,6 +1111,22 @@ struct pptable_funcs {
>>>  	 */
>>>  	uint32_t (*get_gfx_off_status)(struct smu_context *smu);
>>>
>>> +	/**
>>> +	 * @gfx_off_entrycount: total GFXOFF entry count at the time of
>>> +	 * query since system power-up
>>> +	 */
>>> +	u32 (*get_gfx_off_entrycount)(struct smu_context *smu, uint32_t
>>> *entrycount);
>>> +
>>> +	/**
>>> +	 * @set_gfx_off_residency: set 1 to start logging, 0 to stop logging
>>> +	 */
>>> +	u32 (*set_gfx_off_residency)(struct smu_context *smu, bool start);
>>> +
>>> +	/**
>>> +	 * @get_gfx_off_residency: Average GFXOFF residency % during the
>>> logging interval
>>> +	 */
>>> +	u32 (*get_gfx_off_residency)(struct smu_context *smu, uint32_t
>>> *residency);
>>> +
>>>  	/**
>>>  	 * @register_irq_handler: Register interupt request handlers.
>>>  	 */
>>> @@ -1454,6 +1470,12 @@ int smu_set_ac_dc(struct smu_context *smu);
>>>
>>>  int smu_allow_xgmi_power_down(struct smu_context *smu, bool en);
>>>
>>> +int smu_get_entrycount_gfxoff(struct smu_context *smu, u32 *value);
>>> +
>>> +int smu_get_residency_gfxoff(struct smu_context *smu, u32 *value);
>>> +
>>> +int smu_set_residency_gfxoff(struct smu_context *smu, bool value);
>>> +
>>>  int smu_get_status_gfxoff(struct smu_context *smu, uint32_t *value);
>>>
>>>  int smu_handle_passthrough_sbr(struct smu_context *smu, bool enable);
>>> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h
>>> b/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h
>>> index 7469bbfce1fb..ceb13c838067 100644
>>> --- a/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h
>>> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu_internal.h
>>> @@ -47,6 +47,9 @@
>>>  #define smu_notify_memory_pool_location(smu)
>>> 	smu_ppt_funcs(notify_memory_pool_location, 0, smu)
>>>  #define smu_gfx_off_control(smu, enable)
>>> 	smu_ppt_funcs(gfx_off_control, 0, smu, enable)
>>>  #define smu_get_gfx_off_status(smu)
>>> 		smu_ppt_funcs(get_gfx_off_status, 0, smu)
>>> +#define smu_get_gfx_off_entrycount(smu, value)
>>> 			smu_ppt_funcs(get_gfx_off_entrycount, 0, smu,
>>> value)
>>> +#define smu_get_gfx_off_residency(smu, value)
>>> 			smu_ppt_funcs(get_gfx_off_residency, 0, smu,
>>> value)
>>> +#define smu_set_gfx_off_residency(smu, value)
>>> 			smu_ppt_funcs(set_gfx_off_residency, 0, smu,
>>> value)
>>>  #define smu_set_last_dcef_min_deep_sleep_clk(smu)
>>> 	smu_ppt_funcs(set_last_dcef_min_deep_sleep_clk, 0, smu)
>>>  #define smu_system_features_control(smu, en)
>>> 	smu_ppt_funcs(system_features_control, 0, smu, en)
>>>  #define smu_init_max_sustainable_clocks(smu)
>>> 	smu_ppt_funcs(init_max_sustainable_clocks, 0, smu)
>>> --
>>> 2.37.1

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