[Mesa-dev] [PATCH 1/4] ac/gpu: add code to detect if kernel supports sync objects.

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Thu, Jul 20, 2017 at 5:38 AM, Dave Airlie <airlied at gmail.com> wrote:
> From: Dave Airlie <airlied at redhat.com>
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  src/amd/common/ac_gpu_info.c | 9 +++++++++
>  src/amd/common/ac_gpu_info.h | 1 +
>  2 files changed, 10 insertions(+)
>
> diff --git a/src/amd/common/ac_gpu_info.c b/src/amd/common/ac_gpu_info.c
> index ced7183..929dfd2 100644
> --- a/src/amd/common/ac_gpu_info.c
> +++ b/src/amd/common/ac_gpu_info.c
> @@ -84,6 +84,14 @@ static unsigned cik_get_num_tile_pipes(struct amdgpu_gpu_info *info)
>     }
>  }
>
> +static bool has_syncobj(int fd)
> +{
> +       uint64_t value;
> +       if (drmGetCap(fd, DRM_CAP_SYNCOBJ, &value))
> +               return false;
> +       return value ? true : false;
> +}
> +
>  bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
>                        struct radeon_info *info,
>                        struct amdgpu_gpu_info *amdinfo)
> @@ -258,6 +266,7 @@ bool ac_query_gpu_info(int fd, amdgpu_device_handle dev,
>         info->vce_fw_version =
>                 vce.available_rings ? vce_version : 0;
>         info->has_userptr = true;
> +       info->has_syncobj = has_syncobj(fd);
>         info->num_render_backends = amdinfo->rb_pipes;
>         info->clock_crystal_freq = amdinfo->gpu_counter_freq;
>         if (!info->clock_crystal_freq) {
> diff --git a/src/amd/common/ac_gpu_info.h b/src/amd/common/ac_gpu_info.h
> index 72a8506..20907c2 100644
> --- a/src/amd/common/ac_gpu_info.h
> +++ b/src/amd/common/ac_gpu_info.h
> @@ -76,6 +76,7 @@ struct radeon_info {
>         uint32_t                    drm_minor;
>         uint32_t                    drm_patchlevel;
>         bool                        has_userptr;
> +       bool                        has_syncobj;
>
>         /* Shader cores. */
>         uint32_t                    r600_max_quad_pipes; /* wave size / 16 */
> --
> 2.9.4
>
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