[PATCHv2 2/2] drm/amdkfd: Update cache info for GFX 9.4.3

[Mukul Joshi]

Update cache info reporting based on compute and
memory partitioning modes.

Signed-off-by: Mukul Joshi <mukul.joshi at amd.com>
---
v1->v2:
- Separate into a separate patch.
- Simplify the if condition to reduce indentation and make it
  logically more clear.

 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 4e530791507e..dc7c8312e8c7 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -1602,10 +1602,13 @@ static int fill_in_l2_l3_pcache(struct kfd_cache_properties **props_ext,
 	unsigned int cu_sibling_map_mask;
 	int first_active_cu;
 	int i, j, k, xcc, start, end;
+	int num_xcc = NUM_XCC(knode->xcc_mask);
 	struct kfd_cache_properties *pcache = NULL;
+	enum amdgpu_memory_partition mode;
+	struct amdgpu_device *adev = knode->adev;
 
 	start = ffs(knode->xcc_mask) - 1;
-	end = start + NUM_XCC(knode->xcc_mask);
+	end = start + num_xcc;
 	cu_sibling_map_mask = cu_info->bitmap[start][0][0];
 	cu_sibling_map_mask &=
 		((1 << pcache_info[cache_type].num_cu_shared) - 1);
@@ -1624,7 +1627,18 @@ static int fill_in_l2_l3_pcache(struct kfd_cache_properties **props_ext,
 		pcache->processor_id_low = cu_processor_id
 					+ (first_active_cu - 1);
 		pcache->cache_level = pcache_info[cache_type].cache_level;
-		pcache->cache_size = pcache_info[cache_type].cache_size;
+
+		if (KFD_GC_VERSION(knode) == IP_VERSION(9, 4, 3))
+			mode = adev->gmc.gmc_funcs->query_mem_partition_mode(adev);
+		else
+			mode = UNKNOWN_MEMORY_PARTITION_MODE;
+
+		if (pcache->cache_level == 2)
+			pcache->cache_size = pcache_info[cache_type].cache_size * num_xcc;
+		else if (mode)
+			pcache->cache_size = pcache_info[cache_type].cache_size / mode;
+		else
+			pcache->cache_size = pcache_info[cache_type].cache_size;
 
 		if (pcache_info[cache_type].flags & CRAT_CACHE_FLAGS_DATA_CACHE)
 			pcache->cache_type |= HSA_CACHE_TYPE_DATA;
-- 
2.35.1