[Mesa-dev] [PATCH 05/11] gallium: add PIPE_SHADER_CAP_MAX_BUFFERS

Ilia Mirkin imirkin at alum.mit.edu
Mon Sep 28 08:20:48 PDT 2015


On Mon, Sep 28, 2015 at 10:25 AM, Brian Paul <brianp at vmware.com> wrote:
> On 09/27/2015 12:33 AM, Ilia Mirkin wrote:
>>
>> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
>> ---
>>   src/gallium/auxiliary/gallivm/lp_bld_limits.h    | 1 +
>>   src/gallium/auxiliary/tgsi/tgsi_exec.h           | 1 +
>>   src/gallium/docs/source/screen.rst               | 4 ++++
>>   src/gallium/drivers/freedreno/freedreno_screen.c | 2 ++
>>   src/gallium/drivers/nouveau/nv30/nv30_screen.c   | 2 ++
>>   src/gallium/drivers/nouveau/nv50/nv50_screen.c   | 1 +
>>   src/gallium/drivers/nouveau/nvc0/nvc0_screen.c   | 1 +
>>   src/gallium/drivers/r300/r300_screen.c           | 2 ++
>>   src/gallium/drivers/r600/r600_pipe.c             | 1 +
>>   src/gallium/drivers/radeonsi/si_pipe.c           | 2 ++
>>   src/gallium/drivers/svga/svga_screen.c           | 3 +++
>>   src/gallium/drivers/vc4/vc4_screen.c             | 2 ++
>>   src/gallium/include/pipe/p_defines.h             | 3 ++-
>>   13 files changed, 24 insertions(+), 1 deletion(-)
>>
>> diff --git a/src/gallium/auxiliary/gallivm/lp_bld_limits.h
>> b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
>> index 571c615..1f49157 100644
>> --- a/src/gallium/auxiliary/gallivm/lp_bld_limits.h
>> +++ b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
>> @@ -136,6 +136,7 @@ gallivm_get_shader_param(enum pipe_shader_cap param)
>>      case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>> +   case PIPE_SHADER_CAP_MAX_BUFFERS:
>>         return 0;
>>      }
>>      /* if we get here, we missed a shader cap above (and should have seen
>> diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h
>> b/src/gallium/auxiliary/tgsi/tgsi_exec.h
>> index a371aa9..be77979 100644
>> --- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
>> +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
>> @@ -473,6 +473,7 @@ tgsi_exec_get_shader_param(enum pipe_shader_cap param)
>>         return 1;
>>      case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>> +   case PIPE_SHADER_CAP_MAX_BUFFERS:
>>         return 0;
>>      }
>>      /* if we get here, we missed a shader cap above (and should have seen
>> diff --git a/src/gallium/docs/source/screen.rst
>> b/src/gallium/docs/source/screen.rst
>> index e780047..e2550f5 100644
>> --- a/src/gallium/docs/source/screen.rst
>> +++ b/src/gallium/docs/source/screen.rst
>> @@ -356,6 +356,10 @@ to be 0.
>>     are supported.
>>   * ``PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE``: Whether the driver
>> doesn't
>>     ignore tgsi_declaration_range::Last for shader inputs and outputs.
>> +* ``PIPE_SHADER_CAP_MAX_BUFFERS``: Maximum number of memory buffers
>> +  (also used to implement atomic counters). Having this be non-0 also
>> +  implies support for the ``LOAD``, ``STORE``, and ``ATOM*`` TGSI
>> +  opcodes.
>>
>>
>>   .. _pipe_compute_cap:
>> diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c
>> b/src/gallium/drivers/freedreno/freedreno_screen.c
>> index c9228c5..34f33c2 100644
>> --- a/src/gallium/drivers/freedreno/freedreno_screen.c
>> +++ b/src/gallium/drivers/freedreno/freedreno_screen.c
>> @@ -404,6 +404,8 @@ fd_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>                 return 16;
>>         case PIPE_SHADER_CAP_PREFERRED_IR:
>>                 return PIPE_SHADER_IR_TGSI;
>> +       case PIPE_SHADER_CAP_MAX_BUFFERS:
>> +               return 0;
>>         }
>>         debug_printf("unknown shader param %d\n", param);
>>         return 0;
>> diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> index 806d4e6..461795d 100644
>> --- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> +++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> @@ -261,6 +261,7 @@ nv30_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +      case PIPE_SHADER_CAP_MAX_BUFFERS:
>>            return 0;
>>         default:
>>            debug_printf("unknown vertex shader param %d\n", param);
>> @@ -302,6 +303,7 @@ nv30_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +      case PIPE_SHADER_CAP_MAX_BUFFERS:
>>            return 0;
>>         default:
>>            debug_printf("unknown fragment shader param %d\n", param);
>> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> index c3bbc83..f74daac 100644
>> --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> @@ -297,6 +297,7 @@ nv50_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>      case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +   case PIPE_SHADER_CAP_MAX_BUFFERS:
>>         return 0;
>>      default:
>>         NOUVEAU_ERR("unknown PIPE_SHADER_CAP %d\n", param);
>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> index 1909b91..12388b8 100644
>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> @@ -306,6 +306,7 @@ nvc0_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>      case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +   case PIPE_SHADER_CAP_MAX_BUFFERS:
>>         return 0;
>>      case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
>>         return 16; /* would be 32 in linked (OpenGL-style) mode */
>> diff --git a/src/gallium/drivers/r300/r300_screen.c
>> b/src/gallium/drivers/r300/r300_screen.c
>> index e669ba2..426cb2f 100644
>> --- a/src/gallium/drivers/r300/r300_screen.c
>> +++ b/src/gallium/drivers/r300/r300_screen.c
>> @@ -300,6 +300,7 @@ static int r300_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader, e
>>           case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
>>           case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>           case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>> +        case PIPE_SHADER_CAP_MAX_BUFFERS:
>>               return 0;
>>           case PIPE_SHADER_CAP_PREFERRED_IR:
>>               return PIPE_SHADER_IR_TGSI;
>> @@ -356,6 +357,7 @@ static int r300_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader, e
>>           case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
>>           case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>           case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>> +        case PIPE_SHADER_CAP_MAX_BUFFERS:
>>               return 0;
>>           case PIPE_SHADER_CAP_PREFERRED_IR:
>>               return PIPE_SHADER_IR_TGSI;
>> diff --git a/src/gallium/drivers/r600/r600_pipe.c
>> b/src/gallium/drivers/r600/r600_pipe.c
>> index 36d7e68..71e58b0 100644
>> --- a/src/gallium/drivers/r600/r600_pipe.c
>> +++ b/src/gallium/drivers/r600/r600_pipe.c
>> @@ -508,6 +508,7 @@ static int r600_get_shader_param(struct pipe_screen*
>> pscreen, unsigned shader, e
>>         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>> +       case PIPE_SHADER_CAP_MAX_BUFFERS:
>>                 return 0;
>>         }
>>         return 0;
>> diff --git a/src/gallium/drivers/radeonsi/si_pipe.c
>> b/src/gallium/drivers/radeonsi/si_pipe.c
>> index 9edee50..5529a31 100644
>> --- a/src/gallium/drivers/radeonsi/si_pipe.c
>> +++ b/src/gallium/drivers/radeonsi/si_pipe.c
>> @@ -498,6 +498,8 @@ static int si_get_shader_param(struct pipe_screen*
>> pscreen, unsigned shader, enu
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>>                 return 1;
>> +       case PIPE_SHADER_CAP_MAX_BUFFERS:
>> +               return 0;
>>         }
>>         return 0;
>>   }
>> diff --git a/src/gallium/drivers/svga/svga_screen.c
>> b/src/gallium/drivers/svga/svga_screen.c
>> index 44b6f4a..7dea794 100644
>> --- a/src/gallium/drivers/svga/svga_screen.c
>> +++ b/src/gallium/drivers/svga/svga_screen.c
>> @@ -453,6 +453,7 @@ vgpu9_get_shader_param(struct pipe_screen *screen,
>> unsigned shader,
>>         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +      case PIPE_SHADER_CAP_MAX_BUFFERS:
>>            return 0;
>>         }
>>         /* If we get here, we failed to handle a cap above */
>> @@ -509,6 +510,7 @@ vgpu9_get_shader_param(struct pipe_screen *screen,
>> unsigned shader,
>>         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +      case PIPE_SHADER_CAP_MAX_BUFFERS:
>>            return 0;
>>         }
>>         /* If we get here, we failed to handle a cap above */
>> @@ -598,6 +600,7 @@ vgpu10_get_shader_param(struct pipe_screen *screen,
>> unsigned shader,
>>      case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
>>      case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
>> +   case PIPE_SHADER_CAP_MAX_BUFFERS:
>>         return 0;
>>      default:
>>         debug_printf("Unexpected vgpu10 shader query %u\n", param);
>> diff --git a/src/gallium/drivers/vc4/vc4_screen.c
>> b/src/gallium/drivers/vc4/vc4_screen.c
>> index c4b52e1..e29fd3e 100644
>> --- a/src/gallium/drivers/vc4/vc4_screen.c
>> +++ b/src/gallium/drivers/vc4/vc4_screen.c
>> @@ -335,6 +335,8 @@ vc4_screen_get_shader_param(struct pipe_screen
>> *pscreen, unsigned shader,
>>                   return VC4_MAX_TEXTURE_SAMPLERS;
>>           case PIPE_SHADER_CAP_PREFERRED_IR:
>>                   return PIPE_SHADER_IR_TGSI;
>> +        case PIPE_SHADER_CAP_MAX_BUFFERS:
>> +                return 0;
>>           default:
>>                   fprintf(stderr, "unknown shader param %d\n", param);
>>                   return 0;
>> diff --git a/src/gallium/include/pipe/p_defines.h
>> b/src/gallium/include/pipe/p_defines.h
>> index 47fa82a..bea865f 100644
>> --- a/src/gallium/include/pipe/p_defines.h
>> +++ b/src/gallium/include/pipe/p_defines.h
>> @@ -695,7 +695,8 @@ enum pipe_shader_cap
>>      PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED, /* all rounding modes */
>>      PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED,
>>      PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED,
>> -   PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE
>> +   PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE,
>> +   PIPE_SHADER_CAP_MAX_BUFFERS,
>
>
> Wouldn't something like PIPE_SHADER_CAP_MAX_ATOMIC_BUFFERS be more
> descriptive?  MAX_BUFFERS seems pretty generic.

Perhaps MAX_SHADER_BUFFERS? This is also for ssbo. In the st I will
just use the first half for attomic, second half for ssbo binding
points.

  -ilia


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