drm/amdkfd: Use a new capability bit for SRAM ECC

Existing, buggy user mode breaks when SRAM ECC is correctly reported as
"enabled". To avoid breaking existing user mode, deprecate that bit and
leave it as 0. Define a new bit to report the actual SRAM ECC mode that
new, correct user mode can use in the future.

Fixes: 7ec177bdcfc1 ("drm/amdkfd: fix set kfd node ras properties value")
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
index 416fd910e12e1b055d579d366f3e7f31f500d1dd..b8b68087bd7a3085120b98f98bad335312eb6a9f 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
@@ -47,13 +47,14 @@
 #define HSA_CAP_DOORBELL_TYPE_2_0              0x2
 #define HSA_CAP_AQL_QUEUE_DOUBLE_MAP           0x00004000
 
-#define HSA_CAP_SRAM_EDCSUPPORTED              0x00080000
+#define HSA_CAP_RESERVED_WAS_SRAM_EDCSUPPORTED 0x00080000 /* Old buggy user mode depends on this being 0 */
 #define HSA_CAP_MEM_EDCSUPPORTED               0x00100000
 #define HSA_CAP_RASEVENTNOTIFY                 0x00200000
 #define HSA_CAP_ASIC_REVISION_MASK             0x03c00000
 #define HSA_CAP_ASIC_REVISION_SHIFT            22
+#define HSA_CAP_SRAM_EDCSUPPORTED              0x04000000
 
-#define HSA_CAP_RESERVED                       0xfc078000
+#define HSA_CAP_RESERVED                       0xf80f8000
 
 struct kfd_node_properties {
        uint64_t hive_id;