[PATCH 2/5] drm/xe: Add helper to calculate adjusted register offset

[Michal Wajdeczko <michal.wajdeczko@intel.com>]

Our MMIO accessing functions automatically adjust addresses for the
media registers based on mmio.adj_limit and mmio.adj_offset logic.
Move it to the separate helper to avoid code duplication and to
allow using it by the upcoming changes to PF driver code.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
---
 drivers/gpu/drm/xe/xe_mmio.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_mmio.h b/drivers/gpu/drm/xe/xe_mmio.h
index a3cd7b3036c7..7d003bfb91a8 100644
--- a/drivers/gpu/drm/xe/xe_mmio.h
+++ b/drivers/gpu/drm/xe/xe_mmio.h
@@ -36,4 +36,11 @@ u64 xe_mmio_read64_2x32(struct xe_gt *gt, struct xe_reg reg);
 int xe_mmio_wait32(struct xe_gt *gt, struct xe_reg reg, u32 mask, u32 val, u32 timeout_us,
 		   u32 *out_val, bool atomic);
 
+static inline u32 xe_mmio_adjusted_addr(struct xe_gt *gt, u32 addr)
+{
+	if (addr < gt->mmio.adj_limit)
+		addr += gt->mmio.adj_offset;
+	return addr;
+}
+
 #endif
-- 
2.43.0