Re: [Intel-gfx] [PATCH] drm/i915: Add i915 perf infrastructure

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On Fri, Oct 7, 2016 at 10:10 AM, Matthew Auld <matthew.william.auld@xxxxxxxxx> wrote:
On 14 September 2016 at 16:32, Robert Bragg <robert@xxxxxxxxxxxxx> wrote:

> +
> +int i915_perf_open_ioctl_locked(struct drm_device *dev,
> +                               struct drm_i915_perf_open_param *param,
> +                               struct perf_open_properties *props,
> +                               struct drm_file *file)
> +{
This should be static and also let's just make it take dev_priv directly.

Ah, yep, done.


> +               case DRM_I915_PERF_PROP_MAX:
> +                       BUG();
We already handle this case above, but I guess we still need this in
order to silence gcc...

right, and preferable to having a default: case, for the future compiler warning to handle any new properties here.
 


> diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
> index 03725fe..77fe79b 100644
> --- a/include/uapi/drm/i915_drm.h
> +++ b/include/uapi/drm/i915_drm.h
> @@ -258,6 +258,7 @@ typedef struct _drm_i915_sarea {
>  #define DRM_I915_GEM_USERPTR           0x33
>  #define DRM_I915_GEM_CONTEXT_GETPARAM  0x34
>  #define DRM_I915_GEM_CONTEXT_SETPARAM  0x35
> +#define DRM_I915_PERF_OPEN             0x36
>
>  #define DRM_IOCTL_I915_INIT            DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
>  #define DRM_IOCTL_I915_FLUSH           DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
> @@ -311,6 +312,7 @@ typedef struct _drm_i915_sarea {
>  #define DRM_IOCTL_I915_GEM_USERPTR                     DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_USERPTR, struct drm_i915_gem_userptr)
>  #define DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM    DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_GETPARAM, struct drm_i915_gem_context_param)
>  #define DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM    DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_SETPARAM, struct drm_i915_gem_context_param)
> +#define DRM_IOCTL_I915_PERF_OPEN       DRM_IOR(DRM_COMMAND_BASE + DRM_I915_PERF_OPEN, struct drm_i915_perf_open_param)
As you already pointed out this will need to be IOW.

Yeah, changed locally after I realised the mistake here, just didn't get around to posting the patch.
 

Also applied the notes to not redundantly init some vars, spurious new line, redundant include.

Thanks,
- Robert

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