diff mbox

[v8,1/6] drm/i915 : Unifying seq_puts messages for feature support

Message ID 1508865685-7722-2-git-send-email-sujaritha.sundaresan@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Sundaresan, Sujaritha Oct. 24, 2017, 5:21 p.m. UTC
Unifying the various seq_puts messages in debugfs to the simplest one for
feature support.

v2: Clarifying the commit message (Anusha)

v3: Re-factoring code as per review (Michal)

v4: Rebase

v5: Split from following patch

v6: Re-factoring code (Michal, Sagar)
    Clarifying commit message (Sagar)

v7: Generalizing subject to drm/i915 (Sagar)

v8: Omitting DRRS seq_puts unification (Michal)

Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

Comments

Michal Wajdeczko Oct. 25, 2017, 1:31 p.m. UTC | #1
On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan  
<sujaritha.sundaresan@intel.com> wrote:

> Unifying the various seq_puts messages in debugfs to the simplest one for
> feature support.
>
> v2: Clarifying the commit message (Anusha)
>
> v3: Re-factoring code as per review (Michal)
>
> v4: Rebase
>
> v5: Split from following patch
>
> v6: Re-factoring code (Michal, Sagar)
>     Clarifying commit message (Sagar)
>
> v7: Generalizing subject to drm/i915 (Sagar)
>
> v8: Omitting DRRS seq_puts unification (Michal)
>
> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Cc: Oscar Mateo <oscar.mateo@intel.com>
> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c  
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index c65e381..8edd029 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file *m,  
> void *unused)
>  	struct drm_i915_private *dev_priv = node_to_i915(m->private);
> 	if (!HAS_FBC(dev_priv)) {
> -		seq_puts(m, "FBC unsupported on this chipset\n");
> +		seq_puts(m, "not supported\n");
>  		return 0;
>  	}
> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct seq_file  
> *m, void *unused)
>  	unsigned int max_gpu_freq, min_gpu_freq;
> 	if (!HAS_LLC(dev_priv)) {
> -		seq_puts(m, "unsupported on this chipset\n");
> +		seq_puts(m, "not supported\n");
>  		return 0;
>  	}
> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct  
> seq_file *m, void *data)
>  	struct drm_i915_private *dev_priv = node_to_i915(m->private);
>  	struct drm_printer p;
> -	if (!HAS_HUC_UCODE(dev_priv))
> +	if (!HAS_GUC(dev_priv)) {

Hmm, I think that in above code we should use HAS_HUC defined as:

/* HuC is inherent part of the GuC ... */
#define HAS_HUC(dev_priv)	HAS_GUC(dev_priv)

to make it clear that code checks HuC sub-feature (not other part
of the GuC or GuC itself). And additionally we can use above define
to explicitly document relation between GuC and HuC.

Michal

> +		seq_puts(m, "not supported\n");
>  		return 0;
> +	}
> 	p = drm_seq_file_printer(m);
>  	intel_uc_fw_dump(&dev_priv->huc.fw, &p);
> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct  
> seq_file *m, void *data)
>  	struct drm_printer p;
>  	u32 tmp, i;
> -	if (!HAS_GUC_UCODE(dev_priv))
> +	if (!HAS_GUC(dev_priv)) {
> +		seq_puts(m, "not supported\n");
>  		return 0;
> +	}
> 	p = drm_seq_file_printer(m);
>  	intel_uc_fw_dump(&dev_priv->guc.fw, &p);
> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct seq_file *m,  
> void *data)
>  	bool enabled = false;
> 	if (!HAS_PSR(dev_priv)) {
> -		seq_puts(m, "PSR not supported\n");
> +		seq_puts(m, "not supported\n");
>  		return 0;
>  	}
Daniele Ceraolo Spurio Oct. 26, 2017, 5:54 p.m. UTC | #2
On 25/10/17 06:31, Michal Wajdeczko wrote:
> On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan 
> <sujaritha.sundaresan@intel.com> wrote:
> 
>> Unifying the various seq_puts messages in debugfs to the simplest one for
>> feature support.
>>
>> v2: Clarifying the commit message (Anusha)
>>
>> v3: Re-factoring code as per review (Michal)
>>
>> v4: Rebase
>>
>> v5: Split from following patch
>>
>> v6: Re-factoring code (Michal, Sagar)
>>     Clarifying commit message (Sagar)
>>
>> v7: Generalizing subject to drm/i915 (Sagar)
>>
>> v8: Omitting DRRS seq_puts unification (Michal)
>>
>> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Cc: Oscar Mateo <oscar.mateo@intel.com>
>> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
>> ---
>>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>>  1 file changed, 9 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
>> b/drivers/gpu/drm/i915/i915_debugfs.c
>> index c65e381..8edd029 100644
>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file *m, 
>> void *unused)
>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>     if (!HAS_FBC(dev_priv)) {
>> -        seq_puts(m, "FBC unsupported on this chipset\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }
>> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct seq_file 
>> *m, void *unused)
>>      unsigned int max_gpu_freq, min_gpu_freq;
>>     if (!HAS_LLC(dev_priv)) {
>> -        seq_puts(m, "unsupported on this chipset\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }
>> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct 
>> seq_file *m, void *data)
>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>      struct drm_printer p;
>> -    if (!HAS_HUC_UCODE(dev_priv))
>> +    if (!HAS_GUC(dev_priv)) {
> 
> Hmm, I think that in above code we should use HAS_HUC defined as:
> 
> /* HuC is inherent part of the GuC ... */
> #define HAS_HUC(dev_priv)    HAS_GUC(dev_priv)
> 
> to make it clear that code checks HuC sub-feature (not other part
> of the GuC or GuC itself). And additionally we can use above define
> to explicitly document relation between GuC and HuC.
> 
> Michal
> 

The suggested comment feels confusing to me. HuC is a different 
microcontroller and not a part of GuC. The only tie the 2 have is that 
GuC needs to do the authentication. It is however true that any platform 
that has a GuC also has a HuC so the suggested define itself is fine.

Daniele

>> +        seq_puts(m, "not supported\n");
>>          return 0;
>> +    }
>>     p = drm_seq_file_printer(m);
>>      intel_uc_fw_dump(&dev_priv->huc.fw, &p);
>> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct 
>> seq_file *m, void *data)
>>      struct drm_printer p;
>>      u32 tmp, i;
>> -    if (!HAS_GUC_UCODE(dev_priv))
>> +    if (!HAS_GUC(dev_priv)) {
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>> +    }
>>     p = drm_seq_file_printer(m);
>>      intel_uc_fw_dump(&dev_priv->guc.fw, &p);
>> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct seq_file 
>> *m, void *data)
>>      bool enabled = false;
>>     if (!HAS_PSR(dev_priv)) {
>> -        seq_puts(m, "PSR not supported\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
sagar.a.kamble@intel.com Oct. 30, 2017, 4:49 a.m. UTC | #3
On 10/26/2017 11:24 PM, Daniele Ceraolo Spurio wrote:
>
>
> On 25/10/17 06:31, Michal Wajdeczko wrote:
>> On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan 
>> <sujaritha.sundaresan@intel.com> wrote:
>>
>>> Unifying the various seq_puts messages in debugfs to the simplest 
>>> one for
>>> feature support.
As Michal noted in the v7 review, if the goal is to unification of 
consistent output then I see some more in the debugfs that
might need to be updated: *_wm_latency_open, i915_ipc_status, 
i915_runtime_pm_status(returning early could be done later)
i915_llc (add change to return early).
Also, I think this patch can be separated from this series as it has 
very little dependency.
>>>
>>> v2: Clarifying the commit message (Anusha)
>>>
>>> v3: Re-factoring code as per review (Michal)
>>>
>>> v4: Rebase
>>>
>>> v5: Split from following patch
>>>
>>> v6: Re-factoring code (Michal, Sagar)
>>>     Clarifying commit message (Sagar)
>>>
>>> v7: Generalizing subject to drm/i915 (Sagar)
>>>
>>> v8: Omitting DRRS seq_puts unification (Michal)
>>>
>>> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
>>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>>> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>> Cc: Oscar Mateo <oscar.mateo@intel.com>
>>> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
>>> ---
>>>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>>>  1 file changed, 9 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
>>> b/drivers/gpu/drm/i915/i915_debugfs.c
>>> index c65e381..8edd029 100644
>>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>>> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file *m, 
>>> void *unused)
>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>     if (!HAS_FBC(dev_priv)) {
>>> -        seq_puts(m, "FBC unsupported on this chipset\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>>> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct 
>>> seq_file *m, void *unused)
>>>      unsigned int max_gpu_freq, min_gpu_freq;
>>>     if (!HAS_LLC(dev_priv)) {
>>> -        seq_puts(m, "unsupported on this chipset\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>>> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct 
>>> seq_file *m, void *data)
>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>      struct drm_printer p;
>>> -    if (!HAS_HUC_UCODE(dev_priv))
>>> +    if (!HAS_GUC(dev_priv)) {
>>
>> Hmm, I think that in above code we should use HAS_HUC defined as:
>>
>> /* HuC is inherent part of the GuC ... */
>> #define HAS_HUC(dev_priv)    HAS_GUC(dev_priv)
>>
>> to make it clear that code checks HuC sub-feature (not other part
>> of the GuC or GuC itself). And additionally we can use above define
>> to explicitly document relation between GuC and HuC.
>>
>> Michal
>>
>
> The suggested comment feels confusing to me. HuC is a different 
> microcontroller and not a part of GuC. The only tie the 2 have is that 
> GuC needs to do the authentication. It is however true that any 
> platform that has a GuC also has a HuC so the suggested define itself 
> is fine.
>
> Daniele
>
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>> +    }
>>>     p = drm_seq_file_printer(m);
>>>      intel_uc_fw_dump(&dev_priv->huc.fw, &p);
>>> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct 
>>> seq_file *m, void *data)
>>>      struct drm_printer p;
>>>      u32 tmp, i;
>>> -    if (!HAS_GUC_UCODE(dev_priv))
>>> +    if (!HAS_GUC(dev_priv)) {
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>> +    }
>>>     p = drm_seq_file_printer(m);
>>>      intel_uc_fw_dump(&dev_priv->guc.fw, &p);
>>> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct seq_file 
>>> *m, void *data)
>>>      bool enabled = false;
>>>     if (!HAS_PSR(dev_priv)) {
>>> -        seq_puts(m, "PSR not supported\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Sundaresan, Sujaritha Oct. 31, 2017, 6:24 p.m. UTC | #4
On 10/29/2017 09:49 PM, Sagar Arun Kamble wrote:
>
>
> On 10/26/2017 11:24 PM, Daniele Ceraolo Spurio wrote:
>>
>>
>> On 25/10/17 06:31, Michal Wajdeczko wrote:
>>> On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan 
>>> <sujaritha.sundaresan@intel.com> wrote:
>>>
>>>> Unifying the various seq_puts messages in debugfs to the simplest 
>>>> one for
>>>> feature support.
> As Michal noted in the v7 review, if the goal is to unification of 
> consistent output then I see some more in the debugfs that
> might need to be updated: *_wm_latency_open, i915_ipc_status, 
> i915_runtime_pm_status(returning early could be done later)
> i915_llc (add change to return early).
> Also, I think this patch can be separated from this series as it has 
> very little dependency.

Sure, I will include the other updates to the patch. But I feel that it 
might be better to keep
the patch with series, since I'm including the change to HAS_GUC here.
>>>>
>>>> v2: Clarifying the commit message (Anusha)
>>>>
>>>> v3: Re-factoring code as per review (Michal)
>>>>
>>>> v4: Rebase
>>>>
>>>> v5: Split from following patch
>>>>
>>>> v6: Re-factoring code (Michal, Sagar)
>>>>     Clarifying commit message (Sagar)
>>>>
>>>> v7: Generalizing subject to drm/i915 (Sagar)
>>>>
>>>> v8: Omitting DRRS seq_puts unification (Michal)
>>>>
>>>> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>>> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
>>>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>>>> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>>> Cc: Oscar Mateo <oscar.mateo@intel.com>
>>>> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
>>>> ---
>>>>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>>>>  1 file changed, 9 insertions(+), 5 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
>>>> b/drivers/gpu/drm/i915/i915_debugfs.c
>>>> index c65e381..8edd029 100644
>>>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>>>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>>>> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file 
>>>> *m, void *unused)
>>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>>     if (!HAS_FBC(dev_priv)) {
>>>> -        seq_puts(m, "FBC unsupported on this chipset\n");
>>>> +        seq_puts(m, "not supported\n");
>>>>          return 0;
>>>>      }
>>>> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct 
>>>> seq_file *m, void *unused)
>>>>      unsigned int max_gpu_freq, min_gpu_freq;
>>>>     if (!HAS_LLC(dev_priv)) {
>>>> -        seq_puts(m, "unsupported on this chipset\n");
>>>> +        seq_puts(m, "not supported\n");
>>>>          return 0;
>>>>      }
>>>> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct 
>>>> seq_file *m, void *data)
>>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>>      struct drm_printer p;
>>>> -    if (!HAS_HUC_UCODE(dev_priv))
>>>> +    if (!HAS_GUC(dev_priv)) {
>>>
>>> Hmm, I think that in above code we should use HAS_HUC defined as:
>>>
>>> /* HuC is inherent part of the GuC ... */
>>> #define HAS_HUC(dev_priv)    HAS_GUC(dev_priv)
>>>
>>> to make it clear that code checks HuC sub-feature (not other part
>>> of the GuC or GuC itself). And additionally we can use above define
>>> to explicitly document relation between GuC and HuC.
>>>
>>> Michal
>>>
>>
>> The suggested comment feels confusing to me. HuC is a different 
>> microcontroller and not a part of GuC. The only tie the 2 have is 
>> that GuC needs to do the authentication. It is however true that any 
>> platform that has a GuC also has a HuC so the suggested define itself 
>> is fine.
>>
>> Daniele
>>
>>>> +        seq_puts(m, "not supported\n");
>>>>          return 0;
>>>> +    }
>>>>     p = drm_seq_file_printer(m);
>>>>      intel_uc_fw_dump(&dev_priv->huc.fw, &p);
>>>> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct 
>>>> seq_file *m, void *data)
>>>>      struct drm_printer p;
>>>>      u32 tmp, i;
>>>> -    if (!HAS_GUC_UCODE(dev_priv))
>>>> +    if (!HAS_GUC(dev_priv)) {
>>>> +        seq_puts(m, "not supported\n");
>>>>          return 0;
>>>> +    }
>>>>     p = drm_seq_file_printer(m);
>>>>      intel_uc_fw_dump(&dev_priv->guc.fw, &p);
>>>> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct 
>>>> seq_file *m, void *data)
>>>>      bool enabled = false;
>>>>     if (!HAS_PSR(dev_priv)) {
>>>> -        seq_puts(m, "PSR not supported\n");
>>>> +        seq_puts(m, "not supported\n");
>>>>          return 0;
>>>>      }
>>> _______________________________________________
>>> Intel-gfx mailing list
>>> Intel-gfx@lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>

Thanks for the review,

Regards,
Sujaritha
Sundaresan, Sujaritha Oct. 31, 2017, 6:27 p.m. UTC | #5
On 10/25/2017 06:31 AM, Michal Wajdeczko wrote:
> On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan 
> <sujaritha.sundaresan@intel.com> wrote:
>
>> Unifying the various seq_puts messages in debugfs to the simplest one 
>> for
>> feature support.
>>
>> v2: Clarifying the commit message (Anusha)
>>
>> v3: Re-factoring code as per review (Michal)
>>
>> v4: Rebase
>>
>> v5: Split from following patch
>>
>> v6: Re-factoring code (Michal, Sagar)
>>     Clarifying commit message (Sagar)
>>
>> v7: Generalizing subject to drm/i915 (Sagar)
>>
>> v8: Omitting DRRS seq_puts unification (Michal)
>>
>> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
>> Cc: Oscar Mateo <oscar.mateo@intel.com>
>> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
>> ---
>>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>>  1 file changed, 9 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
>> b/drivers/gpu/drm/i915/i915_debugfs.c
>> index c65e381..8edd029 100644
>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file *m, 
>> void *unused)
>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>     if (!HAS_FBC(dev_priv)) {
>> -        seq_puts(m, "FBC unsupported on this chipset\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }
>> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct seq_file 
>> *m, void *unused)
>>      unsigned int max_gpu_freq, min_gpu_freq;
>>     if (!HAS_LLC(dev_priv)) {
>> -        seq_puts(m, "unsupported on this chipset\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }
>> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct 
>> seq_file *m, void *data)
>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>      struct drm_printer p;
>> -    if (!HAS_HUC_UCODE(dev_priv))
>> +    if (!HAS_GUC(dev_priv)) {
>
> Hmm, I think that in above code we should use HAS_HUC defined as:
>
> /* HuC is inherent part of the GuC ... */
> #define HAS_HUC(dev_priv)    HAS_GUC(dev_priv)
>
> to make it clear that code checks HuC sub-feature (not other part
> of the GuC or GuC itself). And additionally we can use above define
> to explicitly document relation between GuC and HuC.
>
> Michal

Sure, I will include the HAS_HUC condition and a comment that clarifies 
the HuC and GuC tie in the next revision.
>
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>> +    }
>>     p = drm_seq_file_printer(m);
>>      intel_uc_fw_dump(&dev_priv->huc.fw, &p);
>> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct 
>> seq_file *m, void *data)
>>      struct drm_printer p;
>>      u32 tmp, i;
>> -    if (!HAS_GUC_UCODE(dev_priv))
>> +    if (!HAS_GUC(dev_priv)) {
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>> +    }
>>     p = drm_seq_file_printer(m);
>>      intel_uc_fw_dump(&dev_priv->guc.fw, &p);
>> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct seq_file 
>> *m, void *data)
>>      bool enabled = false;
>>     if (!HAS_PSR(dev_priv)) {
>> -        seq_puts(m, "PSR not supported\n");
>> +        seq_puts(m, "not supported\n");
>>          return 0;
>>      }

Thanks for the review.

Regards,

Sujaritha
Sundaresan, Sujaritha Oct. 31, 2017, 6:28 p.m. UTC | #6
On 10/26/2017 10:54 AM, Daniele Ceraolo Spurio wrote:
>
>
> On 25/10/17 06:31, Michal Wajdeczko wrote:
>> On Tue, 24 Oct 2017 19:21:20 +0200, Sujaritha Sundaresan 
>> <sujaritha.sundaresan@intel.com> wrote:
>>
>>> Unifying the various seq_puts messages in debugfs to the simplest 
>>> one for
>>> feature support.
>>>
>>> v2: Clarifying the commit message (Anusha)
>>>
>>> v3: Re-factoring code as per review (Michal)
>>>
>>> v4: Rebase
>>>
>>> v5: Split from following patch
>>>
>>> v6: Re-factoring code (Michal, Sagar)
>>>     Clarifying commit message (Sagar)
>>>
>>> v7: Generalizing subject to drm/i915 (Sagar)
>>>
>>> v8: Omitting DRRS seq_puts unification (Michal)
>>>
>>> Suggested by: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>> Signed-off-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
>>> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
>>> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
>>> Cc: Oscar Mateo <oscar.mateo@intel.com>
>>> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
>>> ---
>>>  drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++++++-----
>>>  1 file changed, 9 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
>>> b/drivers/gpu/drm/i915/i915_debugfs.c
>>> index c65e381..8edd029 100644
>>> --- a/drivers/gpu/drm/i915/i915_debugfs.c
>>> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
>>> @@ -1641,7 +1641,7 @@ static int i915_fbc_status(struct seq_file *m, 
>>> void *unused)
>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>     if (!HAS_FBC(dev_priv)) {
>>> -        seq_puts(m, "FBC unsupported on this chipset\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>>> @@ -1809,7 +1809,7 @@ static int i915_ring_freq_table(struct 
>>> seq_file *m, void *unused)
>>>      unsigned int max_gpu_freq, min_gpu_freq;
>>>     if (!HAS_LLC(dev_priv)) {
>>> -        seq_puts(m, "unsupported on this chipset\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>>> @@ -2361,8 +2361,10 @@ static int i915_huc_load_status_info(struct 
>>> seq_file *m, void *data)
>>>      struct drm_i915_private *dev_priv = node_to_i915(m->private);
>>>      struct drm_printer p;
>>> -    if (!HAS_HUC_UCODE(dev_priv))
>>> +    if (!HAS_GUC(dev_priv)) {
>>
>> Hmm, I think that in above code we should use HAS_HUC defined as:
>>
>> /* HuC is inherent part of the GuC ... */
>> #define HAS_HUC(dev_priv)    HAS_GUC(dev_priv)
>>
>> to make it clear that code checks HuC sub-feature (not other part
>> of the GuC or GuC itself). And additionally we can use above define
>> to explicitly document relation between GuC and HuC.
>>
>> Michal
>>
>
> The suggested comment feels confusing to me. HuC is a different 
> microcontroller and not a part of GuC. The only tie the 2 have is that 
> GuC needs to do the authentication. It is however true that any 
> platform that has a GuC also has a HuC so the suggested define itself 
> is fine.
>
> Daniele
>

I agree. I will include the condition and a comment that clearly 
mentions the GuC and HuC tie.
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>> +    }
>>>     p = drm_seq_file_printer(m);
>>>      intel_uc_fw_dump(&dev_priv->huc.fw, &p);
>>> @@ -2380,8 +2382,10 @@ static int i915_guc_load_status_info(struct 
>>> seq_file *m, void *data)
>>>      struct drm_printer p;
>>>      u32 tmp, i;
>>> -    if (!HAS_GUC_UCODE(dev_priv))
>>> +    if (!HAS_GUC(dev_priv)) {
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>> +    }
>>>     p = drm_seq_file_printer(m);
>>>      intel_uc_fw_dump(&dev_priv->guc.fw, &p);
>>> @@ -2650,7 +2654,7 @@ static int i915_edp_psr_status(struct seq_file 
>>> *m, void *data)
>>>      bool enabled = false;
>>>     if (!HAS_PSR(dev_priv)) {
>>> -        seq_puts(m, "PSR not supported\n");
>>> +        seq_puts(m, "not supported\n");
>>>          return 0;
>>>      }
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Thanks for the review.

Regards,
Sujaritha
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index c65e381..8edd029 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1641,7 +1641,7 @@  static int i915_fbc_status(struct seq_file *m, void *unused)
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 
 	if (!HAS_FBC(dev_priv)) {
-		seq_puts(m, "FBC unsupported on this chipset\n");
+		seq_puts(m, "not supported\n");
 		return 0;
 	}
 
@@ -1809,7 +1809,7 @@  static int i915_ring_freq_table(struct seq_file *m, void *unused)
 	unsigned int max_gpu_freq, min_gpu_freq;
 
 	if (!HAS_LLC(dev_priv)) {
-		seq_puts(m, "unsupported on this chipset\n");
+		seq_puts(m, "not supported\n");
 		return 0;
 	}
 
@@ -2361,8 +2361,10 @@  static int i915_huc_load_status_info(struct seq_file *m, void *data)
 	struct drm_i915_private *dev_priv = node_to_i915(m->private);
 	struct drm_printer p;
 
-	if (!HAS_HUC_UCODE(dev_priv))
+	if (!HAS_GUC(dev_priv)) {
+		seq_puts(m, "not supported\n");
 		return 0;
+	}
 
 	p = drm_seq_file_printer(m);
 	intel_uc_fw_dump(&dev_priv->huc.fw, &p);
@@ -2380,8 +2382,10 @@  static int i915_guc_load_status_info(struct seq_file *m, void *data)
 	struct drm_printer p;
 	u32 tmp, i;
 
-	if (!HAS_GUC_UCODE(dev_priv))
+	if (!HAS_GUC(dev_priv)) {
+		seq_puts(m, "not supported\n");
 		return 0;
+	}
 
 	p = drm_seq_file_printer(m);
 	intel_uc_fw_dump(&dev_priv->guc.fw, &p);
@@ -2650,7 +2654,7 @@  static int i915_edp_psr_status(struct seq_file *m, void *data)
 	bool enabled = false;
 
 	if (!HAS_PSR(dev_priv)) {
-		seq_puts(m, "PSR not supported\n");
+		seq_puts(m, "not supported\n");
 		return 0;
 	}