2016-06-01 Christian König <deathsimple@xxxxxxxxxxx>: > From: Christian König <christian.koenig@xxxxxxx> > > 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@xxxxxxx> > --- > drivers/dma-buf/fence.c | 8 ++++---- > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c | 2 +- > drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 2 +- > drivers/gpu/drm/nouveau/nouveau_fence.h | 3 ++- > drivers/gpu/drm/qxl/qxl_release.c | 2 +- > drivers/gpu/drm/radeon/radeon.h | 2 +- > drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 2 +- > drivers/staging/android/sync.h | 3 ++- > include/linux/fence.h | 13 +++++++------ > 10 files changed, 21 insertions(+), 18 deletions(-) Reviewed-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx> Gustavo _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
