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Date: Sun, 9 Jun 2019 18:42:36 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Chris Wilson <chris@...is-wilson.co.uk>, Tvrtko Ursulin <tvrtko.ursulin@...el.com> Subject: [PATCH 4.14 30/35] drm/i915: Fix I915_EXEC_RING_MASK From: Chris Wilson <chris@...is-wilson.co.uk> commit d90c06d57027203f73021bb7ddb30b800d65c636 upstream. This was supposed to be a mask of all known rings, but it is being used by execbuffer to filter out invalid rings, and so is instead mapping high unused values onto valid rings. Instead of a mask of all known rings, we need it to be the mask of all possible rings. Fixes: 549f7365820a ("drm/i915: Enable SandyBridge blitter ring") Fixes: de1add360522 ("drm/i915: Decouple execbuf uAPI from internal implementation") Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@...el.com> Cc: <stable@...r.kernel.org> # v4.6+ Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@...el.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190301140404.26690-21-chris@chris-wilson.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- include/uapi/drm/i915_drm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -853,7 +853,7 @@ struct drm_i915_gem_execbuffer2 { * struct drm_i915_gem_exec_fence *fences. */ __u64 cliprects_ptr; -#define I915_EXEC_RING_MASK (7<<0) +#define I915_EXEC_RING_MASK (0x3f) #define I915_EXEC_DEFAULT (0<<0) #define I915_EXEC_RENDER (1<<0) #define I915_EXEC_BSD (2<<0)
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