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authorChristian König <christian.koenig@amd.com>2016-06-01 15:10:02 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-06-02 08:27:41 +0200
commit76bf0db5543976ef50362db7071da367cb118532 (patch)
treec8f94084239df5d095c80d87d423d44d95081379 /drivers/gpu/drm/qxl/qxl_release.c
parent3377900791ea48a638fb9b70869258332951271d (diff)
downloadop-kernel-dev-76bf0db5543976ef50362db7071da367cb118532.zip
op-kernel-dev-76bf0db5543976ef50362db7071da367cb118532.tar.gz
dma-buf/fence: make fence context 64 bit v2
Fence contexts are created on the fly (for example) by the GPU scheduler used in the amdgpu driver as a result of an userspace request. Because of this userspace could in theory force a wrap around of the 32bit context number if it doesn't behave well. Avoid this by increasing the context number to 64bits. This way even when userspace manages to allocate a billion contexts per second it takes more than 500 years for the context number to wrap around. v2: fix printf formats as well. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1464786612-5010-2-git-send-email-deathsimple@vodafone.de
Diffstat (limited to 'drivers/gpu/drm/qxl/qxl_release.c')
-rw-r--r--drivers/gpu/drm/qxl/qxl_release.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 4efa8e2..f599cd0 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -96,7 +96,7 @@ retry:
return 0;
if (have_drawable_releases && sc > 300) {
- FENCE_WARN(fence, "failed to wait on release %d "
+ FENCE_WARN(fence, "failed to wait on release %llu "
"after spincount %d\n",
fence->context & ~0xf0000000, sc);
goto signaled;
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