drm/radeon: add indirect register accessors for SMC registers
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 b329e99..9af0fa6 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1806,6 +1806,8 @@
#define WREG32_PCIE(reg, v) rv370_pcie_wreg(rdev, (reg), (v))
#define RREG32_PCIE_PORT(reg) rdev->pciep_rreg(rdev, (reg))
#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 WREG32_P(reg, val, mask) \
do { \
uint32_t tmp_ = RREG32(reg); \
@@ -1844,6 +1846,21 @@
WREG32(RADEON_PCIE_DATA, (v));
}
+static inline u32 tn_smc_rreg(struct radeon_device *rdev, u32 reg)
+{
+ u32 r;
+
+ WREG32(TN_SMC_IND_INDEX_0, (reg));
+ r = RREG32(TN_SMC_IND_DATA_0);
+ return r;
+}
+
+static inline void tn_smc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
+{
+ WREG32(TN_SMC_IND_INDEX_0, (reg));
+ WREG32(TN_SMC_IND_DATA_0, (v));
+}
+
void r100_pll_errata_after_index(struct radeon_device *rdev);