[Mesa-dev] [PATCH v3 07/10] nvc0: define driver-specific query groups

Martin Peres martin.peres at free.fr
Sun Apr 26 15:20:17 PDT 2015


On 27/04/2015 01:18, Martin Peres wrote:
> On 02/04/2015 21:41, Samuel Pitoiset wrote:
>> This patch defines "Driver statistics" and "MP counters" groups, but
>> only the latter will be exposed through GL_AMD_performance_monitor.
>>
>> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
>> ---
>>    src/gallium/drivers/nouveau/nvc0/nvc0_query.c  | 67 ++++++++++++++++++++++++++
>>    src/gallium/drivers/nouveau/nvc0/nvc0_screen.c |  1 +
>>    src/gallium/drivers/nouveau/nvc0/nvc0_screen.h |  8 +++
>>    3 files changed, 76 insertions(+)
>>
>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_query.c b/src/gallium/drivers/nouveau/nvc0/nvc0_query.c
>> index 01e7b37..071d179 100644
>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_query.c
>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_query.c
>> @@ -1422,6 +1422,7 @@ nvc0_screen_get_driver_query_info(struct pipe_screen *pscreen,
>>          info->max_value.u64 = 0;
>>          if (strstr(info->name, "bytes"))
>>             info->type = PIPE_DRIVER_QUERY_TYPE_BYTES;
>> +      info->group_id = NVC0_QUERY_DRV_STAT_GROUP;
>>          return 1;
>>       } else
>>    #endif
>> @@ -1431,22 +1432,88 @@ nvc0_screen_get_driver_query_info(struct pipe_screen *pscreen,
>>             info->query_type = NVE4_PM_QUERY(id - NVC0_QUERY_DRV_STAT_COUNT);
>>             info->max_value.u64 =
>>                (id < NVE4_PM_QUERY_METRIC_MP_OCCUPANCY) ? 0 : 100;
>> +         info->group_id = NVC0_QUERY_MP_COUNTER_GROUP;
>>             return 1;
>>          } else
>>          if (screen->compute) {
>>             info->name = nvc0_pm_query_names[id - NVC0_QUERY_DRV_STAT_COUNT];
>>             info->query_type = NVC0_PM_QUERY(id - NVC0_QUERY_DRV_STAT_COUNT);
>>             info->max_value.u64 = 0;
>> +         info->group_id = NVC0_QUERY_MP_COUNTER_GROUP;
>>             return 1;
>>          }
>>       }
>>       /* user asked for info about non-existing query */
>>       info->name = "this_is_not_the_query_you_are_looking_for";
>>       info->query_type = 0xdeadd01d;
>> +   info->group_id = -1;
>>       info->max_value.u64 = 0;
>>       return 0;
>>    }
>>    
>> +int
>> +nvc0_screen_get_driver_query_group_info(struct pipe_screen *pscreen,
>> +                                        unsigned id,
>> +                                        struct pipe_driver_query_group_info *info)
>> +{
>> +   struct nvc0_screen *screen = nvc0_screen(pscreen);
>> +   int count = 0;
>> +
>> +#ifdef NOUVEAU_ENABLE_DRIVER_STATISTICS
>> +   count++;
>> +#endif
>> +
>> +   if (screen->base.device->drm_version >= 0x01000101) {
>> +      if (screen->base.class_3d >= NVE4_3D_CLASS) {
>> +         count++;
>> +      } else if (screen->compute) {
>> +         count++; /* NVC0_COMPUTE is not always enabled */
>> +      }
>> +   }
>> +
>> +   if (!info)
>> +      return count;
>> +
>> +   if (id == NVC0_QUERY_MP_COUNTER_GROUP) {
>> +      info->name = "MP counters";
>> +      info->type = PIPE_DRIVER_QUERY_GROUP_TYPE_GPU;
>> +
>> +      if (screen->base.class_3d >= NVE4_3D_CLASS) {
>> +         info->num_queries = NVE4_PM_QUERY_COUNT;
>> +
>> +          /* On NVE4+, each multiprocessor have 8 hardware counters separated
>> +           * in two distinct domains, but we allow only one active query
>> +           * simultaneously because some of them use more than one hardware
>> +           * counter and this will result in an undefined behaviour. */
>> +          info->max_active_queries = 1; /* TODO: handle multiple hw counters */
>> +          return 1;
>> +      } else if (screen->compute) {
>> +         info->num_queries = NVC0_PM_QUERY_COUNT;
>> +
>> +         /* On NVC0:NVE4, each multiprocessor have 8 hardware counters
>> +          * in a single domain. */
>> +         info->max_active_queries = 8;
>> +         return 1;
>> +      }
>> +   }
>> +#ifdef NOUVEAU_ENABLE_DRIVER_STATISTICS
> Why would anyone not want to enable driver statistics?

I see, it was already present. Fair-enough, we can argue about this in 
another patch :p

Patches 7-10 are:
Reviewed-by: Martin Peres <martin.peres at free.fr>

>
>> +   else if (id == NVC0_QUERY_DRV_STAT_GROUP) {
>> +      info->name = "Driver statistics";
>> +      info->type = PIPE_DRIVER_QUERY_GROUP_TYPE_CPU;
>> +      info->max_active_queries = NVC0_QUERY_DRV_STAT_COUNT;
>> +      info->num_queries = NVC0_QUERY_DRV_STAT_COUNT;
>> +      return 1;
>> +   }
>> +#endif
>> +
>> +   /* user asked for info about non-existing query group */
>> +   info->name = "this_is_not_the_query_group_you_are_looking_for";
>> +   info->max_active_queries = 0;
>> +   info->num_queries = 0;
>> +   info->type = 0;
>> +   return 0;
>> +}
>> +
>>    void
>>    nvc0_init_query_functions(struct nvc0_context *nvc0)
>>    {
>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> index 04c34f5..3c94cfa 100644
>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> @@ -651,6 +651,7 @@ nvc0_screen_create(struct nouveau_device *dev)
>>       pscreen->get_shader_param = nvc0_screen_get_shader_param;
>>       pscreen->get_paramf = nvc0_screen_get_paramf;
>>       pscreen->get_driver_query_info = nvc0_screen_get_driver_query_info;
>> +   pscreen->get_driver_query_group_info = nvc0_screen_get_driver_query_group_info;
>>    
>>       nvc0_screen_init_resource_functions(pscreen);
>>    
>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
>> index 8a1991f..1a7d502 100644
>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.h
>> @@ -86,6 +86,11 @@ nvc0_screen(struct pipe_screen *screen)
>>       return (struct nvc0_screen *)screen;
>>    }
>>    
>> +/*
>> + * Performance counters groups:
>> + */
>> +#define NVC0_QUERY_MP_COUNTER_GROUP 0
>> +#define NVC0_QUERY_DRV_STAT_GROUP   1
>>    
>>    /* Performance counter queries:
>>     */
>> @@ -243,6 +248,9 @@ nvc0_screen(struct pipe_screen *screen)
>>    int nvc0_screen_get_driver_query_info(struct pipe_screen *, unsigned,
>>                                          struct pipe_driver_query_info *);
>>    
>> +int nvc0_screen_get_driver_query_group_info(struct pipe_screen *, unsigned,
>> +                                            struct pipe_driver_query_group_info *);
>> +
>>    boolean nvc0_blitter_create(struct nvc0_screen *);
>>    void nvc0_blitter_destroy(struct nvc0_screen *);
>>    
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