drm/i915/reg: move pick even and pick to reg defs

This is a more logical place for generic helpers.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/623327aee73a515300d99c8d65552ca92f3f0721.1668008071.git.jani.nikula@intel.com

drivers/gpu/drm/i915/i915_reg.h

@@ -117,21 +117,6 @@
 
 #define DISPLAY_MMIO_BASE(dev_priv)	(INTEL_INFO(dev_priv)->display.mmio_offset)
 
-/*
- * Given the first two numbers __a and __b of arbitrarily many evenly spaced
- * numbers, pick the 0-based __index'th value.
- *
- * Always prefer this over _PICK() if the numbers are evenly spaced.
- */
-#define _PICK_EVEN(__index, __a, __b) ((__a) + (__index) * ((__b) - (__a)))
-
-/*
- * Given the arbitrary numbers in varargs, pick the 0-based __index'th number.
- *
- * Always prefer _PICK_EVEN() over this if the numbers are evenly spaced.
- */
-#define _PICK(__index, ...) (((const u32 []){ __VA_ARGS__ })[__index])
-
 /*
  * Named helper wrappers around _PICK_EVEN() and _PICK().
  */

drivers/gpu/drm/i915/i915_reg_defs.h

@@ -111,6 +111,21 @@
 #define _MASKED_BIT_ENABLE(a)	({ typeof(a) _a = (a); _MASKED_FIELD(_a, _a); })
 #define _MASKED_BIT_DISABLE(a)	(_MASKED_FIELD((a), 0))
 
+/*
+ * Given the first two numbers __a and __b of arbitrarily many evenly spaced
+ * numbers, pick the 0-based __index'th value.
+ *
+ * Always prefer this over _PICK() if the numbers are evenly spaced.
+ */
+#define _PICK_EVEN(__index, __a, __b) ((__a) + (__index) * ((__b) - (__a)))
+
+/*
+ * Given the arbitrary numbers in varargs, pick the 0-based __index'th number.
+ *
+ * Always prefer _PICK_EVEN() over this if the numbers are evenly spaced.
+ */
+#define _PICK(__index, ...) (((const u32 []){ __VA_ARGS__ })[__index])
+
 typedef struct {
 	u32 reg;
 } i915_reg_t;