From ddd00e33e17a62c5f44377ab42e7562ccfae7bd1 Mon Sep 17 00:00:00 2001 From: Christian König Date: Thu, 7 Aug 2014 09:36:01 +0200 Subject: drm/radeon: add userptr flag to limit it to anonymous memory v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoid problems with writeback by limiting userptr to anonymous memory. v2: add commit and code comments Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_gem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/radeon/radeon_gem.c') diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index 993ab223b503..032736b429bf 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -290,7 +290,8 @@ int radeon_gem_userptr_ioctl(struct drm_device *dev, void *data, return -EACCES; /* reject unknown flag values */ - if (args->flags & ~RADEON_GEM_USERPTR_READONLY) + if (args->flags & ~(RADEON_GEM_USERPTR_READONLY | + RADEON_GEM_USERPTR_ANONONLY)) return -EINVAL; /* readonly pages not tested on older hardware */ -- cgit v1.2.3