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isl: Add a helper for determining when a typed load/store can be used

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Reviewed-by: Chad Versace <chad.versace@intel.com>
This commit is contained in:
Jason Ekstrand 2016-04-15 17:05:24 -07:00
parent 90576ac963
commit 65bd8317e2
2 changed files with 20 additions and 0 deletions
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7
src/intel/isl/isl.h
View file

@ -903,6 +903,13 @@ enum isl_format
isl_lower_storage_image_format(const struct brw_device_info *devinfo, isl_lower_storage_image_format(const struct brw_device_info *devinfo,
enum isl_format fmt); enum isl_format fmt);
/* Returns true if this hardware supports typed load/store on a format with
* the same size as the given format.
*/
bool
isl_has_matching_typed_storage_image_format(const struct brw_device_info *devinfo,
enum isl_format fmt);
static inline bool static inline bool
isl_tiling_is_any_y(enum isl_tiling tiling) isl_tiling_is_any_y(enum isl_tiling tiling)
{ {

13
src/intel/isl/isl_storage_image.c
View file

@ -187,6 +187,19 @@ isl_lower_storage_image_format(const struct brw_device_info *devinfo,
} }
} }
bool
isl_has_matching_typed_storage_image_format(const struct brw_device_info *devinfo,
enum isl_format fmt)
{
if (devinfo->gen >= 9) {
return true;
} else if (devinfo->gen >= 8 || devinfo->is_haswell) {
return isl_format_get_layout(fmt)->bs <= 8;
} else {
return isl_format_get_layout(fmt)->bs <= 4;
}
}
static const struct brw_image_param image_param_defaults = { static const struct brw_image_param image_param_defaults = {
/* Set the swizzling shifts to all-ones to effectively disable /* Set the swizzling shifts to all-ones to effectively disable
* swizzling -- See emit_address_calculation() in * swizzling -- See emit_address_calculation() in