diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_sseu.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_sseu.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c b/drivers/gpu/drm/i915/gt/intel_sseu.c index a648818eafa5..bbd272943c3f 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu.c @@ -699,3 +699,21 @@ void intel_sseu_print_topology(const struct sseu_dev_info *sseu, } } } + +u16 intel_slicemask_from_dssmask(u64 dss_mask, int dss_per_slice) +{ + u16 slice_mask = 0; + int i; + + WARN_ON(sizeof(dss_mask) * 8 / dss_per_slice > 8 * sizeof(slice_mask)); + + for (i = 0; dss_mask; i++) { + if (dss_mask & GENMASK(dss_per_slice - 1, 0)) + slice_mask |= BIT(i); + + dss_mask >>= dss_per_slice; + } + + return slice_mask; +} + |