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path: root/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
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Diffstat (limited to 'drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h')
-rw-r--r--drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h b/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
index 79afb132164e..45f5d29bc705 100644
--- a/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
+++ b/drivers/gpu/drm/amd/pm/inc/arcturus_ppsmc.h
@@ -120,6 +120,13 @@
#define PPSMC_MSG_ReadSerialNumTop32 0x40
#define PPSMC_MSG_ReadSerialNumBottom32 0x41
+/* paramater for MSG_LightSBR
+ * 1 -- Enable light secondary bus reset, only do nbio respond without further handling,
+ * leave driver to handle the real reset
+ * 0 -- Disable LightSBR, default behavior, SMU will pass the reset to PSP
+ */
+#define PPSMC_MSG_LightSBR 0x42
+
typedef uint32_t PPSMC_Result;
typedef uint32_t PPSMC_Msg;
#pragma pack(pop)