From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Summers, Stuart" Subject: Re: [PATCH 4/5] drm/i915: Move sseu helper functions to intel_sseu.h Date: Tue, 30 Apr 2019 14:19:55 +0000 Message-ID: References: <20190429155135.6468-1-stuart.summers@intel.com> <20190429155135.6468-5-stuart.summers@intel.com> <87ef5jrhlz.fsf@intel.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2007553272==" Return-path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by gabe.freedesktop.org (Postfix) with ESMTPS id C5CC989182 for ; Tue, 30 Apr 2019 14:19:57 +0000 (UTC) In-Reply-To: <87ef5jrhlz.fsf@intel.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "intel-gfx@lists.freedesktop.org" , "jani.nikula@linux.intel.com" List-Id: intel-gfx@lists.freedesktop.org --===============2007553272== Content-Language: en-US Content-Type: multipart/signed; micalg=sha-1; protocol="application/x-pkcs7-signature"; boundary="=-FOwsG/qyS9Szl3bpanAl" --=-FOwsG/qyS9Szl3bpanAl Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2019-04-30 at 12:02 +0300, Jani Nikula wrote: > On Mon, 29 Apr 2019, Stuart Summers wrote: > > Signed-off-by: Stuart Summers > > --- > > drivers/gpu/drm/i915/gt/intel_sseu.h | 47 > > ++++++++++++++++++++++++ > > drivers/gpu/drm/i915/intel_device_info.h | 47 -------------------- > > ---- > > 2 files changed, 47 insertions(+), 47 deletions(-) > >=20 > > diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h > > b/drivers/gpu/drm/i915/gt/intel_sseu.h > > index f5ff6b7a756a..5127b4ff92bf 100644 > > --- a/drivers/gpu/drm/i915/gt/intel_sseu.h > > +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h > > @@ -63,12 +63,59 @@ intel_sseu_from_device_info(const struct > > sseu_dev_info *sseu) > > return value; > > } > > =20 > > +static inline unsigned int sseu_subslice_total(const struct > > sseu_dev_info *sseu) > > +{ > > + unsigned int i, total =3D 0; > > + > > + for (i =3D 0; i < ARRAY_SIZE(sseu->subslice_mask); i++) > > + total +=3D hweight8(sseu->subslice_mask[i]); > > + > > + return total; > > +} > > + > > static inline unsigned int > > sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 > > slice) > > { > > return hweight8(sseu->subslice_mask[slice]); > > } > > =20 > > +static inline int sseu_eu_idx(const struct sseu_dev_info *sseu, > > + int slice, int subslice) > > +{ > > + int subslice_stride =3D DIV_ROUND_UP(sseu->max_eus_per_subslice, > > + BITS_PER_BYTE); > > + int slice_stride =3D sseu->max_subslices * subslice_stride; > > + > > + return slice * slice_stride + subslice * subslice_stride; > > +} > > + > > +static inline u16 sseu_get_eus(const struct sseu_dev_info *sseu, > > + int slice, int subslice) > > +{ > > + int i, offset =3D sseu_eu_idx(sseu, slice, subslice); > > + u16 eu_mask =3D 0; > > + > > + for (i =3D 0; > > + i < DIV_ROUND_UP(sseu->max_eus_per_subslice, > > BITS_PER_BYTE); i++) { > > + eu_mask |=3D ((u16) sseu->eu_mask[offset + i]) << > > + (i * BITS_PER_BYTE); > > + } > > + > > + return eu_mask; > > +} > > + > > +static inline void sseu_set_eus(struct sseu_dev_info *sseu, > > + int slice, int subslice, u16 eu_mask) > > +{ > > + int i, offset =3D sseu_eu_idx(sseu, slice, subslice); > > + > > + for (i =3D 0; > > + i < DIV_ROUND_UP(sseu->max_eus_per_subslice, > > BITS_PER_BYTE); i++) {an't be=20 > > + sseu->eu_mask[offset + i] =3D > > + (eu_mask >> (BITS_PER_BYTE * i)) & 0xff; > > + } > > +} > > + >=20 > I'd appreciate follow-up to rename these functions > intel_sseu_*. Functions in intel_foo.[ch] should be named > intel_foo_*(). Makes sense. >=20 > Also, I'm starting to wonder the benefits of the plethora of inline > functions we use. Should we move them to the .c file? It can't be a > perf > thing can it? These are mostly called at driver load time, so no, shouldn't be a performance issue. I don't have a preference either way, so no problem moving these as suggested. Thanks, Stuart >=20 > BR, > Jani. >=20 > > u32 intel_sseu_make_rpcs(struct drm_i915_private *i915, > > const struct intel_sseu *req_sseu); > > =20 > > diff --git a/drivers/gpu/drm/i915/intel_device_info.h > > b/drivers/gpu/drm/i915/intel_device_info.h > > index 5a2e17d6146b..6412a9c72898 100644 > > --- a/drivers/gpu/drm/i915/intel_device_info.h > > +++ b/drivers/gpu/drm/i915/intel_device_info.h > > @@ -218,53 +218,6 @@ struct intel_driver_caps { > > bool has_logical_contexts:1; > > }; > > =20 > > -static inline unsigned int sseu_subslice_total(const struct > > sseu_dev_info *sseu) > > -{ > > - unsigned int i, total =3D 0; > > - > > - for (i =3D 0; i < ARRAY_SIZE(sseu->subslice_mask); i++) > > - total +=3D hweight8(sseu->subslice_mask[i]); > > - > > - return total; > > -} > > - > > -static inline int sseu_eu_idx(const struct sseu_dev_info *sseu, > > - int slice, int subslice) > > -{ > > - int subslice_stride =3D DIV_ROUND_UP(sseu->max_eus_per_subslice, > > - BITS_PER_BYTE); > > - int slice_stride =3D sseu->max_subslices * subslice_stride; > > - > > - return slice * slice_stride + subslice * subslice_stride; > > -} > > - > > -static inline u16 sseu_get_eus(const struct sseu_dev_info *sseu, > > - int slice, int subslice) > > -{ > > - int i, offset =3D sseu_eu_idx(sseu, slice, subslice); > > - u16 eu_mask =3D 0; > > - > > - for (i =3D 0; > > - i < DIV_ROUND_UP(sseu->max_eus_per_subslice, > > BITS_PER_BYTE); i++) { > > - eu_mask |=3D ((u16) sseu->eu_mask[offset + i]) << > > - (i * BITS_PER_BYTE); > > - } > > - > > - return eu_mask; > > -} > > - > > -static inline void sseu_set_eus(struct sseu_dev_info *sseu, > > - int slice, int subslice, u16 eu_mask) > > -{ > > - int i, offset =3D sseu_eu_idx(sseu, slice, subslice); > > - > > - for (i =3D 0; > > - i < DIV_ROUND_UP(sseu->max_eus_per_subslice, > > BITS_PER_BYTE); i++) { > > - sseu->eu_mask[offset + i] =3D > > - (eu_mask >> (BITS_PER_BYTE * i)) & 0xff; > > - } > > -} > > - > > const char *intel_platform_name(enum intel_platform platform); > > =20 > > void intel_device_info_subplatform_init(struct drm_i915_private > > *dev_priv); 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