drm/radeon/kms: add accessors for RCU indirect space
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index ba59d95..5bc10af 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1850,6 +1850,8 @@
#define WREG32_PCIE_PORT(reg, v) rdev->pciep_wreg(rdev, (reg), (v))
#define RREG32_SMC(reg) tn_smc_rreg(rdev, (reg))
#define WREG32_SMC(reg, v) tn_smc_wreg(rdev, (reg), (v))
+#define RREG32_RCU(reg) r600_rcu_rreg(rdev, (reg))
+#define WREG32_RCU(reg, v) r600_rcu_wreg(rdev, (reg), (v))
#define WREG32_P(reg, val, mask) \
do { \
uint32_t tmp_ = RREG32(reg); \
@@ -1906,6 +1908,21 @@
WREG32(TN_SMC_IND_DATA_0, (v));
}
+static inline u32 r600_rcu_rreg(struct radeon_device *rdev, u32 reg)
+{
+ u32 r;
+
+ WREG32(R600_RCU_INDEX, ((reg) & 0x1fff));
+ r = RREG32(R600_RCU_DATA);
+ return r;
+}
+
+static inline void r600_rcu_wreg(struct radeon_device *rdev, u32 reg, u32 v)
+{
+ WREG32(R600_RCU_INDEX, ((reg) & 0x1fff));
+ WREG32(R600_RCU_DATA, (v));
+}
+
void r100_pll_errata_after_index(struct radeon_device *rdev);