[igt-dev] [PATCH i-g-t v2 1/2] lib/igt_kms: added tile property parser

[Ser, Simon]

On Sun, 2019-09-08 at 20:49 -0700, Manasi Navare wrote:
> Hi Simon,
> 
> Is this good to get merged?

Yes!

> Regards
> Manasi
> 
> On Tue, Aug 27, 2019 at 12:33:45AM -0700, Ser, Simon wrote:
> > On Fri, 2019-08-23 at 11:23 -0700, Madhumitha Tolakanahalli Pradeep wrote:
> > > The tile property parser parses the connector tile property obtained
> > > from connector's Display ID block and set per connector.
> > > 
> > > v2: Minor style changes (Simon)
> > > 
> > > Cc: Manasi Navare <manasi.d.navare at intel.com>
> > > Cc: Petri Latvala <petri.latvala at intel.com>
> > > Cc: Simon Ser <simon.ser at intel.com>
> > > 
> > > Cc: <madhumitha.tp at gmail.com>
> > > 
> > > Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep at intel.com>
> > 
> > This is still:
> > 
> > Reviewed-by: Simon Ser <simon.ser at intel.com>
> > 
> > > ---
> > >  lib/igt_kms.c | 29 +++++++++++++++++++++++++++++
> > >  lib/igt_kms.h | 11 +++++++++++
> > >  2 files changed, 40 insertions(+)
> > > 
> > > diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> > > index 17a7d2b6..dc0f810d 100644
> > > --- a/lib/igt_kms.c
> > > +++ b/lib/igt_kms.c
> > > @@ -4515,3 +4515,32 @@ bool igt_display_has_format_mod(igt_display_t *display, uint32_t format,
> > >  
> > >  	return false;
> > >  }
> > > +
> > > +/**
> > > + * igt_parse_connector_tile_blob:
> > > + * @blob: pointer to the connector's tile properties
> > > + * @tile: pointer to tile structure that is populated by the function
> > > + *
> > > + * Parses the connector tile blob to extract the tile information.
> > > + * The blob information is exposed from drm/drm_connector.c in the kernel.
> > > + * The format of the tile property is defined in the kernel as char tile[256]
> > > + * that consists of 8 integers that are ':' separated.
> > > + *
> > > + */
> > > +
> > > +void igt_parse_connector_tile_blob(drmModePropertyBlobPtr blob,
> > > +		igt_tile_info_t *tile)
> > > +{
> > > +	char *blob_data = blob->data;
> > > +
> > > +	igt_assert(blob);
> > > +
> > > +	tile->tile_group_id = atoi(strtok(blob_data, ":"));
> > > +	tile->tile_is_single_monitor = atoi(strtok(NULL, ":"));
> > > +	tile->num_h_tile = atoi(strtok(NULL, ":"));
> > > +	tile->num_v_tile = atoi(strtok(NULL, ":"));
> > > +	tile->tile_h_loc = atoi(strtok(NULL, ":"));
> > > +	tile->tile_v_loc = atoi(strtok(NULL, ":"));
> > > +	tile->tile_h_size = atoi(strtok(NULL, ":"));
> > > +	tile->tile_v_size = atoi(strtok(NULL, ":"));
> > > +}
> > > diff --git a/lib/igt_kms.h b/lib/igt_kms.h
> > > index 56481fd1..aebb4d31 100644
> > > --- a/lib/igt_kms.h
> > > +++ b/lib/igt_kms.h
> > > @@ -390,6 +390,14 @@ struct igt_display {
> > >  	int format_mod_count;
> > >  };
> > >  
> > > +typedef struct {
> > > +	int tile_group_id;
> > > +	bool tile_is_single_monitor;
> > > +	uint8_t num_h_tile, num_v_tile;
> > > +	uint8_t tile_h_loc, tile_v_loc;
> > > +	uint16_t tile_h_size, tile_v_size;
> > > +} igt_tile_info_t;
> > > +
> > >  void igt_display_require(igt_display_t *display, int drm_fd);
> > >  void igt_display_fini(igt_display_t *display);
> > >  void igt_display_reset(igt_display_t *display);
> > > @@ -834,4 +842,7 @@ static inline bool igt_vblank_before(uint32_t a, uint32_t b)
> > >  	return igt_vblank_after(b, a);
> > >  }
> > >  
> > > +void igt_parse_connector_tile_blob(drmModePropertyBlobPtr blob,
> > > +		igt_tile_info_t *tile);
> > > +
> > >  #endif /* __IGT_KMS_H__ */