@@ -14,6 +14,8 @@ void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
sseu->max_slices = max_slices;
sseu->max_subslices = max_subslices;
sseu->max_eus_per_subslice = max_eus_per_subslice;
+
+ sseu->ss_stride = GEN_SSEU_STRIDE(sseu->max_subslices);
}
unsigned int
@@ -33,6 +33,8 @@ struct sseu_dev_info {
u8 max_subslices;
u8 max_eus_per_subslice;
+ u8 ss_stride;
+
/* We don't have more than 8 eus per subslice at the moment and as we
* store eus enabled using bits, no need to multiply by eus per
* subslice.
@@ -37,7 +37,6 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
const struct sseu_dev_info *sseu = &RUNTIME_INFO(dev_priv)->sseu;
struct drm_i915_query_topology_info topo;
u32 slice_length, subslice_length, eu_length, total_length;
- u8 subslice_stride = GEN_SSEU_STRIDE(sseu->max_subslices);
u8 eu_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
int ret;
@@ -50,7 +49,7 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask));
slice_length = sizeof(sseu->slice_mask);
- subslice_length = sseu->max_slices * subslice_stride;
+ subslice_length = sseu->max_slices * sseu->ss_stride;
eu_length = sseu->max_slices * sseu->max_subslices * eu_stride;
total_length = sizeof(topo) + slice_length + subslice_length +
eu_length;
@@ -69,7 +68,7 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
topo.max_eus_per_subslice = sseu->max_eus_per_subslice;
topo.subslice_offset = slice_length;
- topo.subslice_stride = subslice_stride;
+ topo.subslice_stride = sseu->ss_stride;
topo.eu_offset = slice_length + subslice_length;
topo.eu_stride = eu_stride;
Add a new parameter, ss_stride, to the runtime info structure. This is used to mirror the userspace concept of subslice stride, which is a range of subslices per slice. This patch simply adds the definition and updates usage in the QUERY_TOPOLOGY_INFO handler. Signed-off-by: Stuart Summers <stuart.summers@intel.com> --- drivers/gpu/drm/i915/gt/intel_sseu.c | 2 ++ drivers/gpu/drm/i915/gt/intel_sseu.h | 2 ++ drivers/gpu/drm/i915/i915_query.c | 5 ++--- 3 files changed, 6 insertions(+), 3 deletions(-)