Commit 94841d87 authored by Jérôme Pouiller's avatar Jérôme Pouiller Committed by Thomas Petazzoni
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libdrm: fix support for xserver with Vivante drivers 



[Thomas: fix minor typo in patch description.]

Signed-off-by: default avatarJérôme Pouiller <jezz@sysmic.org>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 8ec52d57

package/libdrm/0001-update-arm.patch

0 → 100644
+37 −0
Original line number Diff line number Diff line 
[Adapted from yocto project]



Add ARM support into xf86drm.h.  This provides support for Xorg interface.

Without this the vivante samples will hang during close requiring a reboot



Upstream-Status: Pending



Signed-off-by: Lauren Post <lauren.post@freescale.com>

Signed-off-by: Evan Kotara <evan.kotara@freescale.com>



diff --git a/xf86drm.h b/xf86drm.h

--- a/xf86drm.h

+++ b/xf86drm.h

@@ -461,6 +461,23 @@ do {	register unsigned int __old __asm("

 		: "cr0", "memory");			\

 	} while (0)

 

+#elif defined(__arm__)

+       #undef DRM_DEV_MODE

+       #define DRM_DEV_MODE     (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)

+

+       #define DRM_CAS(lock,old,new,__ret)             \

+       do {                                            \

+               __asm__ __volatile__ (                  \

+                       "1: ldrex %0, [%1]\n"           \

+                       "   teq %0, %2\n"               \

+                       "   ite eq\n"                   \

+                       "   strexeq %0, %3, [%1]\n"     \

+                       "   movne   %0, #1\n"           \

+               : "=&r" (__ret)                         \

+               : "r" (lock), "r" (old), "r" (new)      \

+               : "cc","memory");                       \

+       } while (0)

+

 #endif /* architecture */

 #endif /* __GNUC__ >= 2 */