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

Samuel Pitoiset samuel.pitoiset at gmail.com
Sun May 3 02:42:50 PDT 2015



On 04/27/2015 12:20 AM, Martin Peres wrote:
> 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
>

Yeah, maybe we should always enable driver statistics.

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

Thanks Martin.

>
>>
>>> +   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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>
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