Re: [PATCH 3/6] drm/i915: Move calculation of subslices per slice to new function

["Summers, Stuart" <stuart.summers@intel.com>]

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On Wed, 2019-05-01 at 11:14 -0700, Daniele Ceraolo Spurio wrote:
> 
> On 5/1/19 8:34 AM, Stuart Summers wrote:
> > Add a new function to return the number of subslices per slice to
> > consolidate code usage.
> > 
> > v2: rebase on changes to move sseu struct to intel_sseu.h
> > 
> > Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> > Signed-off-by: Stuart Summers <stuart.summers@intel.com>
> > ---
> >   drivers/gpu/drm/i915/gt/intel_sseu.h     | 6 ++++++
> >   drivers/gpu/drm/i915/i915_debugfs.c      | 2 +-
> >   drivers/gpu/drm/i915/intel_device_info.c | 4 ++--
> >   3 files changed, 9 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h
> > b/drivers/gpu/drm/i915/gt/intel_sseu.h
> > index c0b16b248d4c..f5ff6b7a756a 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_sseu.h
> > +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h
> > @@ -63,6 +63,12 @@ intel_sseu_from_device_info(const struct
> > sseu_dev_info *sseu)
> >   	return value;
> >   }
> >   
> > +static inline unsigned int
> > +sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8
> > slice)
> 
> This is exposed, so needs an intel_* prefix. with that:

Will change in the next series update. Thanks for the review!

-Stuart

> 
> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> 
> Daniele
> 
> > +{
> > +	return hweight8(sseu->subslice_mask[slice]);
> > +}
> > +
> >   u32 intel_sseu_make_rpcs(struct drm_i915_private *i915,
> >   			 const struct intel_sseu *req_sseu);
> >   
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
> > b/drivers/gpu/drm/i915/i915_debugfs.c
> > index 0e4dffcd4da4..fe854c629a32 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -4185,7 +4185,7 @@ static void i915_print_sseu_info(struct
> > seq_file *m, bool is_available_info,
> >   		   sseu_subslice_total(sseu));
> >   	for (s = 0; s < fls(sseu->slice_mask); s++) {
> >   		seq_printf(m, "  %s Slice%i subslices: %u\n", type,
> > -			   s, hweight8(sseu->subslice_mask[s]));
> > +			   s, sseu_subslices_per_slice(sseu, s));
> >   	}
> >   	seq_printf(m, "  %s EU Total: %u\n", type,
> >   		   sseu->eu_total);
> > diff --git a/drivers/gpu/drm/i915/intel_device_info.c
> > b/drivers/gpu/drm/i915/intel_device_info.c
> > index 6af480b95bc6..559cf0d0628e 100644
> > --- a/drivers/gpu/drm/i915/intel_device_info.c
> > +++ b/drivers/gpu/drm/i915/intel_device_info.c
> > @@ -93,7 +93,7 @@ static void sseu_dump(const struct sseu_dev_info
> > *sseu, struct drm_printer *p)
> >   	drm_printf(p, "subslice total: %u\n",
> > sseu_subslice_total(sseu));
> >   	for (s = 0; s < sseu->max_slices; s++) {
> >   		drm_printf(p, "slice%d: %u subslices, mask=%04x\n",
> > -			   s, hweight8(sseu->subslice_mask[s]),
> > +			   s, sseu_subslices_per_slice(sseu, s),
> >   			   sseu->subslice_mask[s]);
> >   	}
> >   	drm_printf(p, "EU total: %u\n", sseu->eu_total);
> > @@ -126,7 +126,7 @@ void intel_device_info_dump_topology(const
> > struct sseu_dev_info *sseu,
> >   
> >   	for (s = 0; s < sseu->max_slices; s++) {
> >   		drm_printf(p, "slice%d: %u subslice(s) (0x%hhx):\n",
> > -			   s, hweight8(sseu->subslice_mask[s]),
> > +			   s, sseu_subslices_per_slice(sseu, s),
> >   			   sseu->subslice_mask[s]);
> >   
> >   		for (ss = 0; ss < sseu->max_subslices; ss++) {
> > 

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