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From: Rodrigo Vivi <rodrigo.vivi@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: [PATCH 2/2] drm/i915: Kill GEN_FOREVER
Date: Fri, 26 Oct 2018 12:51:43 -0700	[thread overview]
Message-ID: <20181026195143.20353-2-rodrigo.vivi@intel.com> (raw)
In-Reply-To: <20181026195143.20353-1-rodrigo.vivi@intel.com>

commit ac657f6461e5 ("drm/i915: Introduce IS_GEN macro") introduced
GEN_FOREVER that was never used.

My first attempt was to rename it to FOREVER since GEN is
already part of the macro. Then I used coccinelle to change all
-INTEL_GEN(e1) >= e2
+INTEL_GEN_RANGE(e1, e2, FOREVER)
-INTEL_GEN(e1) <= e2
+INTEL_GEN_RANGE(e1, 0, e2)

and I liked it.

However I didn't like very much the remaining
INTEL_GEN(dev_priv) < n

and:
INTEL_GEN(e1) < n
INTEL_GEN_RANGE(e1, 0, n - 1)

didn't make much sense either.

So INTEL_GEN use for > or < seems a better unified way for unlimited
bounds. So, no reason to keep GEN_FOREVER here.

Let's kill before someone start using it.

v2: Remove remaining GEN_FOREVER forgotten in a comment. (Daniel)

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_drv.h | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2d7761b8ac07..c9e5bab6861b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2355,20 +2355,12 @@ intel_info(const struct drm_i915_private *dev_priv)
 #define REVID_FOREVER		0xff
 #define INTEL_REVID(dev_priv)	((dev_priv)->drm.pdev->revision)
 
-#define GEN_FOREVER (0)
-
 #define INTEL_GEN_MASK(s, e) ( \
 	BUILD_BUG_ON_ZERO(!__builtin_constant_p(s)) + \
 	BUILD_BUG_ON_ZERO(!__builtin_constant_p(e)) + \
-	GENMASK((e) != GEN_FOREVER ? (e) - 1 : BITS_PER_LONG - 1, \
-		(s) != GEN_FOREVER ? (s) - 1 : 0) \
-)
+	GENMASK((e) - 1, (s) - 1))
 
-/*
- * Returns true if Gen is in inclusive range [Start, End].
- *
- * Use GEN_FOREVER for unbound start and or end.
- */
+/* Returns true if Gen is in inclusive range [Start, End] */
 #define IS_GEN(dev_priv, s, e) \
 	(!!((dev_priv)->info.gen_mask & INTEL_GEN_MASK((s), (e))))
 
-- 
2.19.1

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  reply	other threads:[~2018-10-26 19:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-26 19:51 [PATCH 1/2] drm/i915: Prefer IS_GEN<n> check with bitmask Rodrigo Vivi
2018-10-26 19:51 ` Rodrigo Vivi [this message]
2018-10-26 20:17 ` ✗ Fi.CI.SPARSE: warning for series starting with [1/2] " Patchwork
2018-10-26 20:35 ` ✓ Fi.CI.BAT: success " Patchwork
2018-10-27  5:24 ` ✓ Fi.CI.IGT: " Patchwork
2018-10-29 17:45   ` Rodrigo Vivi

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