drm/xe/mmio: add xe_mmio_read16()

Little by little, make stuff feature complete.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_mmio.h b/drivers/gpu/drm/xe/xe_mmio.h
index 3c547d78afbaf77f7dfb3989359219c4aad2f364..4953a9a3f1fb36661b2dbbaf05686547720a9532 100644 (file)
--- a/drivers/gpu/drm/xe/xe_mmio.h
+++ b/drivers/gpu/drm/xe/xe_mmio.h
@@ -31,6 +31,16 @@ static inline u8 xe_mmio_read8(struct xe_gt *gt, struct xe_reg reg)
        return readb(tile->mmio.regs + reg.addr);
 }
 
+static inline u16 xe_mmio_read16(struct xe_gt *gt, struct xe_reg reg)
+{
+       struct xe_tile *tile = gt_to_tile(gt);
+
+       if (reg.addr < gt->mmio.adj_limit)
+               reg.addr += gt->mmio.adj_offset;
+
+       return readw(tile->mmio.regs + reg.addr);
+}
+
 static inline void xe_mmio_write32(struct xe_gt *gt,
                                   struct xe_reg reg, u32 val)
 {