Since we reuse the same field for the user passing in their control flags, and for the kernel to track a couple of bits of state, document and check that those do not overlap.
Suggested-by: Tvrtko Ursulin <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: Tvrtko Ursulin <[email protected]> Cc: Joonas Lahtinen <[email protected]> --- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index e962a0111b5e..163d71c9abdb 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -58,6 +58,7 @@ enum { #define __EXEC_HAS_RELOC BIT(31) #define __EXEC_VALIDATED BIT(30) +#define __EXEC_INTERNAL_FLAGS (~0u << 30) #define UPDATE PIN_OFFSET_FIXED #define BATCH_OFFSET_BIAS (256*1024) @@ -2185,6 +2186,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, int out_fence_fd = -1; int err; + BUILD_BUG_ON(__EXEC_INTERNAL_FLAGS & ~__I915_EXEC_ILLEGAL_FLAGS); BUILD_BUG_ON(__EXEC_OBJECT_INTERNAL_FLAGS & ~__EXEC_OBJECT_UNKNOWN_FLAGS); -- 2.14.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
