1 files changed, 156 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/vlv_sideband.h b/drivers/gpu/drm/i915/display/vlv_sideband.h
new file mode 100644
index 000000000000..2c240d81fead
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/vlv_sideband.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright © 2025 Intel Corporation */
+
+#ifndef _VLV_SIDEBAND_H_
+#define _VLV_SIDEBAND_H_
+
+#include <linux/bitops.h>
+#include <linux/types.h>
+
+#include "vlv_iosf_sb.h"
+#include "vlv_iosf_sb_reg.h"
+
+enum dpio_phy;
+struct drm_device;
+
+static inline void vlv_bunit_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_BUNIT));
+}
+
+static inline u32 vlv_bunit_read(struct drm_device *drm, u32 reg)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_BUNIT, reg);
+}
+
+static inline void vlv_bunit_write(struct drm_device *drm, u32 reg, u32 val)
+{
+	vlv_iosf_sb_write(drm, VLV_IOSF_SB_BUNIT, reg, val);
+}
+
+static inline void vlv_bunit_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_BUNIT));
+}
+
+static inline void vlv_cck_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_CCK));
+}
+
+static inline u32 vlv_cck_read(struct drm_device *drm, u32 reg)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_CCK, reg);
+}
+
+static inline void vlv_cck_write(struct drm_device *drm, u32 reg, u32 val)
+{
+	vlv_iosf_sb_write(drm, VLV_IOSF_SB_CCK, reg, val);
+}
+
+static inline void vlv_cck_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_CCK));
+}
+
+static inline void vlv_ccu_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_CCU));
+}
+
+static inline u32 vlv_ccu_read(struct drm_device *drm, u32 reg)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_CCU, reg);
+}
+
+static inline void vlv_ccu_write(struct drm_device *drm, u32 reg, u32 val)
+{
+	vlv_iosf_sb_write(drm, VLV_IOSF_SB_CCU, reg, val);
+}
+
+static inline void vlv_ccu_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_CCU));
+}
+
+static inline void vlv_dpio_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_DPIO) | BIT(VLV_IOSF_SB_DPIO_2));
+}
+
+#ifdef I915
+u32 vlv_dpio_read(struct drm_device *drm, enum dpio_phy phy, int reg);
+void vlv_dpio_write(struct drm_device *drm,
+		    enum dpio_phy phy, int reg, u32 val);
+#else
+static inline u32 vlv_dpio_read(struct drm_device *drm, int phy, int reg)
+{
+	return 0;
+}
+static inline void vlv_dpio_write(struct drm_device *drm,
+				  int phy, int reg, u32 val)
+{
+}
+#endif
+
+static inline void vlv_dpio_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_DPIO) | BIT(VLV_IOSF_SB_DPIO_2));
+}
+
+static inline void vlv_flisdsi_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_FLISDSI));
+}
+
+static inline u32 vlv_flisdsi_read(struct drm_device *drm, u32 reg)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_FLISDSI, reg);
+}
+
+static inline void vlv_flisdsi_write(struct drm_device *drm, u32 reg, u32 val)
+{
+	vlv_iosf_sb_write(drm, VLV_IOSF_SB_FLISDSI, reg, val);
+}
+
+static inline void vlv_flisdsi_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_FLISDSI));
+}
+
+static inline void vlv_nc_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_NC));
+}
+
+static inline u32 vlv_nc_read(struct drm_device *drm, u8 addr)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_NC, addr);
+}
+
+static inline void vlv_nc_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_NC));
+}
+
+static inline void vlv_punit_get(struct drm_device *drm)
+{
+	vlv_iosf_sb_get(drm, BIT(VLV_IOSF_SB_PUNIT));
+}
+
+static inline u32 vlv_punit_read(struct drm_device *drm, u32 addr)
+{
+	return vlv_iosf_sb_read(drm, VLV_IOSF_SB_PUNIT, addr);
+}
+
+static inline int vlv_punit_write(struct drm_device *drm, u32 addr, u32 val)
+{
+	return vlv_iosf_sb_write(drm, VLV_IOSF_SB_PUNIT, addr, val);
+}
+
+static inline void vlv_punit_put(struct drm_device *drm)
+{
+	vlv_iosf_sb_put(drm, BIT(VLV_IOSF_SB_PUNIT));
+}
+
+#endif /* _VLV_SIDEBAND_H_ */