Re: [PATCH 7/8] drm/i915/get_params: Add GuC status to getparams

From: Daniel Vetter <daniel@ffwll.ch>
To: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 7/8] drm/i915/get_params: Add GuC status to getparams
Date: Fri, 7 Oct 2016 09:11:03 +0200	[thread overview]
Message-ID: <20161007071103.GS20761@phenom.ffwll.local> (raw)
In-Reply-To: <20161005205114.GA8808@rdvivi-vienna>

On Wed, Oct 05, 2016 at 01:51:14PM -0700, Rodrigo Vivi wrote:
> 
> 
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

This is new uabi. Where's the userspace?

Checking this is part of the review.
-Daniel

> 
> On Mon, Oct 03, 2016 at 11:43:01AM -0700, Anusha Srivatsa wrote:
> > From: Peter Antoine <peter.antoine@intel.com>
> > 
> > This patch returns the GuC status to the caller. It is used so
> > that the userspace knows if the GuC has been loaded.
> > 
> > v4: rebase.
> > v5: rebased.
> > 
> > Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
> > Signed-off-by: Peter Antoine <peter.antoine@intel.com>
> > ---
> >  drivers/gpu/drm/i915/i915_drv.c         |  4 ++++
> >  drivers/gpu/drm/i915/intel_guc.h        |  2 +-
> >  drivers/gpu/drm/i915/intel_guc_loader.c | 18 ++++++++++++++++++
> >  include/uapi/drm/i915_drm.h             |  1 +
> >  4 files changed, 24 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> > index 7af7bd6..ff1c18d 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.c
> > +++ b/drivers/gpu/drm/i915/i915_drv.c
> > @@ -49,6 +49,7 @@
> >  #include "i915_trace.h"
> >  #include "i915_vgpu.h"
> >  #include "intel_drv.h"
> > +#include "intel_guc.h"
> >  
> >  static struct drm_driver driver;
> >  
> > @@ -339,6 +340,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
> >  		 */
> >  		value = 1;
> >  		break;
> > +	case I915_PARAM_HAS_GUC:
> > +		value = intel_is_guc_valid(dev_priv);
> > +		break;
> >  	default:
> >  		DRM_DEBUG("Unknown parameter %d\n", param->param);
> >  		return -EINVAL;
> > diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
> > index af76ffe..3a7fa7e 100644
> > --- a/drivers/gpu/drm/i915/intel_guc.h
> > +++ b/drivers/gpu/drm/i915/intel_guc.h
> > @@ -168,5 +168,5 @@ int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
> >  int i915_guc_wq_reserve(struct drm_i915_gem_request *rq);
> >  void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
> >  void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
> > -
> > +int intel_is_guc_valid(struct drm_i915_private *dev_priv);
> >  #endif
> > diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
> > index 31a2b0a..5d2a703 100644
> > --- a/drivers/gpu/drm/i915/intel_guc_loader.c
> > +++ b/drivers/gpu/drm/i915/intel_guc_loader.c
> > @@ -801,3 +801,21 @@ void intel_guc_fini(struct drm_device *dev)
> >  
> >  	guc_fw->fetch_status = UC_FIRMWARE_NONE;
> >  }
> > +
> > +/**
> > + * intel_is_guc_valid() - Check to see if the GuC is fully loaded.
> > + * @dev:	drm dedvice to check.
> > + *
> > + * This function will return true if the guc has been loaded and
> > + * has valid firmware.
> > + */
> > +int intel_is_guc_valid(struct drm_i915_private *dev_priv)
> > +{
> > +	struct intel_uc_fw *guc_fw = &dev_priv->guc.guc_fw;
> > +
> > +	if (guc_fw->load_status == UC_FIRMWARE_SUCCESS)
> > +		return 1;
> > +	else
> > +		return 0;
> > +}
> > +
> > diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
> > index 03725fe..629fb5e 100644
> > --- a/include/uapi/drm/i915_drm.h
> > +++ b/include/uapi/drm/i915_drm.h
> > @@ -388,6 +388,7 @@ typedef struct drm_i915_irq_wait {
> >  #define I915_PARAM_HAS_POOLED_EU	 38
> >  #define I915_PARAM_MIN_EU_IN_POOL	 39
> >  #define I915_PARAM_MMAP_GTT_VERSION	 40
> > +#define I915_PARAM_HAS_GUC		 41
> >  
> >  typedef struct drm_i915_getparam {
> >  	__s32 param;
> > -- 
> > 2.7.4
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> _______________________________________________
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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