Re: [PATCH v5 4/6] drm/i915: add rcs topology to error state

[Lionel Landwerlin <lionel.g.landwerlin@intel.com>]

On 16/01/18 13:57, Chris Wilson wrote:
> Quoting Lionel Landwerlin (2018-01-16 13:40:08)
>> This might be useful information for developers looking at an error
>> state.
>>
>> v2: Place topology towards the end of the error state (Chris)
>>
>> v3: Reuse common printing code (Michal)
>>
>> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
>> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> ---
>>   drivers/gpu/drm/i915/i915_gpu_error.c | 9 +++++++++
>>   1 file changed, 9 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
>> index 944059322daa..aaa34a2bebe1 100644
>> --- a/drivers/gpu/drm/i915/i915_gpu_error.c
>> +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
>> @@ -605,6 +605,14 @@ static void err_print_uc(struct drm_i915_error_state_buf *m,
>>          print_error_obj(m, NULL, "GuC log buffer", error_uc->guc_log);
>>   }
>>   
>> +static void err_print_rcs_topology(struct drm_i915_error_state_buf *m,
>> +                                  const struct sseu_dev_info *sseu)
>> +{
>> +       struct drm_printer p = i915_error_printer(m);
>> +
>> +       intel_device_info_dump_topology(sseu, &p);
>> +}
>> +
>>   int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
>>                              const struct i915_gpu_state *error)
>>   {
>> @@ -787,6 +795,7 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m,
>>                  intel_display_print_error_state(m, error->display);
>>   
>>          err_print_capabilities(m, &error->device_info);
>> +       err_print_rcs_topology(m, &INTEL_INFO(dev_priv)->sseu);
> Did we not acquire a copy of sseu via error->device_info above? Looks
> like this would be a one-liner to print-caps.
> -Chris
>
Sold.

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