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authorGravatar Jérôme Pouiller <jezz@sysmic.org>2014-12-09 14:46:46 +0100
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-12-27 21:48:06 +0100
commit94841d87fd2ff8ebf7af84d49e5095074958febf (patch)
treed704a227415d0cafa91a98b77befeb5e055d0d25
parent8ec52d57ecdb09ef8330eaf4e84efd41fa5a2fcf (diff)
downloadbuildroot-94841d87fd2ff8ebf7af84d49e5095074958febf.tar.gz
buildroot-94841d87fd2ff8ebf7af84d49e5095074958febf.tar.bz2
libdrm: fix support for xserver with Vivante drivers
[Thomas: fix minor typo in patch description.] Signed-off-by: Jérôme Pouiller <jezz@sysmic.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-rw-r--r--package/libdrm/0001-update-arm.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/package/libdrm/0001-update-arm.patch b/package/libdrm/0001-update-arm.patch
new file mode 100644
index 0000000000..1a95a14ba0
--- /dev/null
+++ b/package/libdrm/0001-update-arm.patch
@@ -0,0 +1,37 @@
+[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 */
+