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drm/r128: fix build for UML

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Fix a build error on CONFIG_UML, which does not support (provide)
wbinvd(). UML can use the generic mb() instead.

../drivers/gpu/drm/r128/ati_pcigart.c: In function ‘drm_ati_pcigart_init’:
../drivers/gpu/drm/r128/ati_pcigart.c:218:2: error: implicit declaration of function ‘wbinvd’ [-Werror=implicit-function-declaration]
  wbinvd();
  ^~~~~~

Fixes: 68f5d3f3b6 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: linux-um@lists.infradead.org
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211011080006.31081-1-rdunlap@infradead.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Randy Dunlap 2021-10-11 01:00:06 -07:00 committed by Dave Airlie
parent d1d94b0129
commit 1a361b41c1
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/r128/ati_pcigart.c
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@ -214,7 +214,7 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
} }
ret = 0; ret = 0;
#if defined(__i386__) || defined(__x86_64__) #ifdef CONFIG_X86
wbinvd(); wbinvd();
#else #else
mb(); mb();