[Mesa-dev] [PATCH 1/6] gallium: plumb context priority through to driver

Rob Clark robdclark at gmail.com
Wed Oct 4 21:02:55 UTC 2017


On Wed, Oct 4, 2017 at 3:33 PM, Roland Scheidegger <sroland at vmware.com> wrote:
> Am 04.10.2017 um 17:44 schrieb Rob Clark:
>> Signed-off-by: Rob Clark <robdclark at gmail.com>
>> ---
>>  src/gallium/drivers/etnaviv/etnaviv_screen.c        |  1 +
>>  src/gallium/drivers/freedreno/freedreno_screen.c    |  1 +
>>  src/gallium/drivers/i915/i915_screen.c              |  1 +
>>  src/gallium/drivers/llvmpipe/lp_screen.c            |  1 +
>>  src/gallium/drivers/nouveau/nv30/nv30_screen.c      |  1 +
>>  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              |  1 +
>>  src/gallium/drivers/r600/r600_pipe.c                |  1 +
>>  src/gallium/drivers/radeonsi/si_pipe.c              |  1 +
>>  src/gallium/drivers/softpipe/sp_screen.c            |  1 +
>>  src/gallium/drivers/svga/svga_screen.c              |  1 +
>>  src/gallium/drivers/swr/swr_screen.cpp              |  1 +
>>  src/gallium/drivers/vc4/vc4_screen.c                |  1 +
>>  src/gallium/drivers/virgl/virgl_screen.c            |  1 +
>>  src/gallium/include/pipe/p_defines.h                | 21 +++++++++++++++++++++
>>  src/gallium/include/state_tracker/st_api.h          |  2 ++
>>  src/gallium/state_trackers/dri/dri_context.c        | 11 +++++++++++
>>  src/gallium/state_trackers/dri/dri_query_renderer.c |  8 +++++++-
>>  src/mesa/state_tracker/st_manager.c                 |  5 +++++
>>  20 files changed, 61 insertions(+), 1 deletion(-)
>>
>> diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
>> index 42905ab0620..16bd4b7c0fb 100644
>> --- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
>> +++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
>> @@ -264,6 +264,7 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>     case PIPE_CAP_QUERY_SO_OVERFLOW:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>
>>     /* Stream output. */
>> diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
>> index 040c2c99ec0..96866d656be 100644
>> --- a/src/gallium/drivers/freedreno/freedreno_screen.c
>> +++ b/src/gallium/drivers/freedreno/freedreno_screen.c
>> @@ -325,6 +325,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>       case PIPE_CAP_QUERY_SO_OVERFLOW:
>>       case PIPE_CAP_MEMOBJ:
>>       case PIPE_CAP_LOAD_CONSTBUF:
>> +     case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>               return 0;
>>
>>       case PIPE_CAP_MAX_VIEWPORTS:
>> diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
>> index 8411c0f15cc..7bcf479c4be 100644
>> --- a/src/gallium/drivers/i915/i915_screen.c
>> +++ b/src/gallium/drivers/i915/i915_screen.c
>> @@ -317,6 +317,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
>>     case PIPE_CAP_QUERY_SO_OVERFLOW:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>
>>     case PIPE_CAP_MAX_VIEWPORTS:
>> diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
>> index 53171162a54..19411adaf07 100644
>> --- a/src/gallium/drivers/llvmpipe/lp_screen.c
>> +++ b/src/gallium/drivers/llvmpipe/lp_screen.c
>> @@ -360,6 +360,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
>>     case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>     }
>>     /* should only get here on unhandled cases */
>> diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> index a66b4fbe67b..782ba0a64db 100644
>> --- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> +++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
>> @@ -224,6 +224,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>     case PIPE_CAP_QUERY_SO_OVERFLOW:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>
>>     case PIPE_CAP_VENDOR_ID:
>> diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> index 479283e1b7c..997cb4e71dc 100644
>> --- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> +++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
>> @@ -276,6 +276,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>     case PIPE_CAP_QUERY_SO_OVERFLOW:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>
>>     case PIPE_CAP_VENDOR_ID:
>> diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> index ac850c493da..05913bccb65 100644
>> --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
>> @@ -305,6 +305,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
>>     case PIPE_CAP_QUERY_SO_OVERFLOW:
>>     case PIPE_CAP_MEMOBJ:
>>     case PIPE_CAP_LOAD_CONSTBUF:
>> +   case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>        return 0;
>>
>>     case PIPE_CAP_VENDOR_ID:
>> diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
>> index 0c3e097535d..021f1df2db4 100644
>> --- a/src/gallium/drivers/r300/r300_screen.c
>> +++ b/src/gallium/drivers/r300/r300_screen.c
>> @@ -246,6 +246,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>          case PIPE_CAP_QUERY_SO_OVERFLOW:
>>          case PIPE_CAP_MEMOBJ:
>>          case PIPE_CAP_LOAD_CONSTBUF:
>> +        case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>              return 0;
>>
>>          /* SWTCL-only features. */
>> diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
>> index 655b5411ed5..98c0b10c4d0 100644
>> --- a/src/gallium/drivers/r600/r600_pipe.c
>> +++ b/src/gallium/drivers/r600/r600_pipe.c
>> @@ -402,6 +402,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>       case PIPE_CAP_QUERY_SO_OVERFLOW:
>>       case PIPE_CAP_MEMOBJ:
>>       case PIPE_CAP_LOAD_CONSTBUF:
>> +     case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>               return 0;
>>
>>       case PIPE_CAP_DOUBLES:
>> diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
>> index 33f5adbd3ad..2881bd8f9fb 100644
>> --- a/src/gallium/drivers/radeonsi/si_pipe.c
>> +++ b/src/gallium/drivers/radeonsi/si_pipe.c
>> @@ -488,6 +488,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
>>       case PIPE_CAP_QUERY_SO_OVERFLOW:
>>       case PIPE_CAP_MEMOBJ:
>>       case PIPE_CAP_LOAD_CONSTBUF:
>> +     case PIPE_CAP_CONTEXT_PRIORITY_MASK:
>>               return 1;
> I don't think you want to return 1 here.

oh, opps.. I think I screwed that up somehow in rebase conflict resolution..

fwiw, the cap value is a bitmask of PIPE_CONTEXT_{HIGH,LOW}_PRIORITY
with default that everyone gets being MEDIUM.. but I will add
something to docs

I am assuming HIGH/MED/LOW is enough, since that is what EGL extension
wants.. last I looked, i915 is going in the direction of adding a
wider range of priority levels.. one possible open question, that I
should have mentioned, is whether we want to define one extra lower
priority level for compute, since if compute/opencl shares a ring,
maybe it wants to be lower priority than anything gfx?  But I guess
also we can tackle this easily enough when the need arises.

BR,
-R

>
> Otherwise, I agree with Brian, this should be mentioned in docs.
> With that fixed,
> Reviewed-by: Roland Scheidegger <sroland at vmware.com>
>


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