[PATCH 05/12] drm: drop i386 verification

From: David Herrmann <dh.herrmann@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 05/12] drm: drop i386 verification
Date: Wed, 23 Jul 2014 17:26:40 +0200	[thread overview]
Message-ID: <1406129207-1302-6-git-send-email-dh.herrmann@gmail.com> (raw)
In-Reply-To: <1406129207-1302-1-git-send-email-dh.herrmann@gmail.com>

Linux doesn't run on i386, anymore. See:

    commit d55c5a93db2d5fa95f233ab153f594365d95b777
    Author: H. Peter Anvin <hpa@linux.intel.com>
    Date:   Wed Nov 28 11:50:24 2012 -0800

        x86, 386 removal: Remove CONFIG_CMPXCHG

        All 486+ CPUs support CMPXCHG, so remove the fallback 386 support
        code.

Furthermore, as the commit-message states, all 486+ CPUs support the
CMPXCHG instruction and thus even legacy DRM can run fine.

Drop the now superfluous "x86 == 3" check.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
 drivers/gpu/drm/drm_fops.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index fb81d1c..a402061 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -210,10 +210,6 @@ out_unlock:
  */
 static int drm_cpu_valid(void)
 {
-#if defined(__i386__)
-	if (boot_cpu_data.x86 == 3)
-		return 0;	/* No cmpxchg on a 386 */
-#endif
 #if defined(__sparc__) && !defined(__sparc_v9__)
 	return 0;		/* No cmpxchg before v9 sparc. */
 #endif
-- 
2.0.2
