drm/i915: merge gen checks to use range

Instead of using IS_GEN() for consecutive gen checks, let's pass the
range to IS_GEN_RANGE(). By code inspection these were the ranges deemed
necessary for spatch:

@@
expression e;
@@
(
- IS_GEN(e, 3) || IS_GEN(e, 2)
+ IS_GEN_RANGE(e, 2, 3)
|
- IS_GEN(e, 3) || IS_GEN(e, 4)
+ IS_GEN_RANGE(e, 3, 4)
|
- IS_GEN(e, 5) || IS_GEN(e, 6)
+ IS_GEN_RANGE(e, 5, 6)
|
- IS_GEN(e, 6) || IS_GEN(e, 7)
+ IS_GEN_RANGE(e, 6, 7)
|
- IS_GEN(e, 7) || IS_GEN(e, 8)
+ IS_GEN_RANGE(e, 7, 8)
|
- IS_GEN(e, 8) || IS_GEN(e, 9)
+ IS_GEN_RANGE(e, 8, 9)
|
- IS_GEN(e, 10) || IS_GEN(e, 9)
+ IS_GEN_RANGE(e, 9, 10)
|
- IS_GEN(e, 9) || IS_GEN(e, 10)
+ IS_GEN_RANGE(e, 9, 10)
)

After conversion, checking we don't have any missing IS_GEN_RANGE() ||
IS_GEN() was also done.

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181212181044.15886-3-lucas.demarchi@intel.com
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 6c79923..4288c0e 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3415,7 +3415,7 @@ void i915_perf_init(struct drm_i915_private *dev_priv)
 		dev_priv->perf.oa.ops.read = gen8_oa_read;
 		dev_priv->perf.oa.ops.oa_hw_tail_read = gen8_oa_hw_tail_read;
 
-		if (IS_GEN(dev_priv, 8) || IS_GEN(dev_priv, 9)) {
+		if (IS_GEN_RANGE(dev_priv, 8, 9)) {
 			dev_priv->perf.oa.ops.is_valid_b_counter_reg =
 				gen7_is_valid_b_counter_addr;
 			dev_priv->perf.oa.ops.is_valid_mux_reg =