update SM20/SM21 status

PerformanceCounters.mdwn

@@ -57,7 +57,7 @@ vertex_attribute_count                 | [[!color background=orange text=WIP ]]
 ## Status
 
 [[!table header="no" class="ColorTable" data="""
- **Hardware events** | **[[SM20]]**<sup>1</sup> | **[[SM21]]** | **[[SM30]]** | **[[SM35]]** | **[[SM50]]**
+ **Hardware events** | **[[SM20]]**<sup>1</sup><sup>2</sup> | **[[SM21]]**<sup>2</sup> | **[[SM30]]** | **[[SM35]]** | **[[SM50]]**
 
 active_cycles                           | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 active_ctas                             | N/A | N/A | N/A | N/A  | [[!color background=palegreen text=DONE ]]
@@ -69,13 +69,13 @@ branch/divergent_branch                 | [[!color background=palegreen text=DON
 global_atom_cas                         | N/A | N/A | N/A | N/A  | [[!color background=palegreen text=DONE ]]
 global_{load,store}                     | N/A | N/A | N/A | N/A  | [[!color background=palegreen text=DONE ]]
 global_{ld,st}\_mem_divergence_replays  | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
-global_store_transaction                | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] |  N/A
+global_store_transaction                | [[!color background=red text=TODO ]] | [[!color background=red text=TODO ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
 gred_count                              | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 inst_executed                           | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 inst_issued (and variants)              | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
-l1_global_load_{hit,miss}               | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
+l1_global_load_{hit,miss}               | [[!color background=red text=TODO ]] | [[!color background=red text=TODO ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
 \__l1_global_{load,store}\_transactions | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
-l1_local_{load,store}\_{hit,miss}       | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
+l1_local_{load,store}\_{hit,miss}       | [[!color background=red text=TODO ]] | [[!color background=red text=TODO ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
 l1_shared_{load,store}\_transactions    | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
 local_{load,store}                      | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 local_{load,store}\_transactions        | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
@@ -87,10 +87,10 @@ shared_{ld,st}\_transactions            | N/A | N/A | N/A | N/A  | [[!color back
 shared_{load,store}                     | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 shared_{load,store}\_bank_conflict      | N/A | N/A | N/A | N/A | [[!color background=palegreen text=DONE ]]
 shared_{load,store}\_replay             | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
-sm_cta_launched                         | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
-thread_inst_executed                    | [[!color background=palegreen text=DONE ]]| [[!color background=palegreen text=DONE ]] | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
+sm_cta_launched                         | [[!color background=red text=TODO ]] | [[!color background=red text=TODO ]]| [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
+thread_inst_executed (and variants)     | [[!color background=palegreen text=DONE ]]| [[!color background=palegreen text=DONE ]] | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 threads_launched                        | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
-uncached_global_load_transaction        | N/A | N/A | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
+uncached_global_load_transaction        | [[!color background=red text=TODO ]] | [[!color background=red text=TODO ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | N/A
 warps_launched                          | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]] | [[!color background=palegreen text=DONE ]]
 
 
@@ -100,6 +100,7 @@ warps_launched                          | [[!color background=palegreen text=DON
 
 <sup>1</sup> MP perf counters on GF100/GF110 (SM20) are buggy because we have a context-switch problem that needs to be fixed. Results might be wrong, be careful!
 
+<sup>2</sup> TODO means those perf counters are exposed through PCOUNTER.
 
 # Metrics
 ## Status