+/*
+ * Indirect registers accessor
+ */
+u32 tn_smc_rreg(struct radeon_device *rdev, u32 reg)
+{
+ unsigned long flags;
+ u32 r;
+
+ spin_lock_irqsave(&rdev->smc_idx_lock, flags);
+ WREG32(TN_SMC_IND_INDEX_0, (reg));
+ r = RREG32(TN_SMC_IND_DATA_0);
+ spin_unlock_irqrestore(&rdev->smc_idx_lock, flags);
+ return r;
+}
+
+void tn_smc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&rdev->smc_idx_lock, flags);
+ WREG32(TN_SMC_IND_INDEX_0, (reg));
+ WREG32(TN_SMC_IND_DATA_0, (v));
+ spin_unlock_irqrestore(&rdev->smc_idx_lock, flags);
+}
+