[Intel-gfx] [PATCH 1/5] drm/i915: let IS_GEN receive 1 or 2 arguments

[Lucas De Marchi]

By letting IS_GEN receive more than 1 argument (besides the dev_priv) we
can use the same macro to check for ranges.

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c9e5bab6861b..3b0bdab5a57a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2361,9 +2361,15 @@ intel_info(const struct drm_i915_private *dev_priv)
 	GENMASK((e) - 1, (s) - 1))
 
 /* Returns true if Gen is in inclusive range [Start, End] */
-#define IS_GEN(dev_priv, s, e) \
+#define _IS_GEN_ARG2(dev_priv, s, e) \
 	(!!((dev_priv)->info.gen_mask & INTEL_GEN_MASK((s), (e))))
 
+#define _IS_GEN_ARG1(dev_priv, g) \
+	(!!((dev_priv)->info.gen_mask & BIT((g) - 1)))
+
+#define IS_GEN(dev_priv, ...) \
+	CONCATENATE(_IS_GEN_ARG, COUNT_ARGS(__VA_ARGS__))((dev_priv), ##__VA_ARGS__)
+
 /*
  * Return true if revision is in range [since,until] inclusive.
  *
-- 
2.19.1.1.g56c4683e68