Quoting Vinay Belgaumkar (2017-10-13 00:22:17)
> +static bool has_ctx_exec(int fd, unsigned ring, uint32_t ctx)
> +{
> + struct drm_i915_gem_execbuffer2 execbuf;
> + struct drm_i915_gem_exec_object2 exec;
> +
> + /* silly ABI, the kernel thinks everyone who has BSD also has BSD2 */
> + if ((ring & ~(3<<13)) == I915_EXEC_BSD) {
> + if (ring & (3 << 13) && !gem_has_bsd2(fd))
> + return false;
> + }
> +
> + memset(&exec, 0, sizeof(exec));
> + memset(&execbuf, 0, sizeof(execbuf));
> + execbuf.buffers_ptr = to_user_pointer(&exec);
> + execbuf.buffer_count = 1;
> + execbuf.flags = ring;
> + execbuf.rsvd1 = ctx;
> + /*
> + * If context submission is not allowed, this will return EINVAL
> + * Otherwise, this will return ENOENT on account of no gem obj
> + * being submitted
> + */
> + return (__gem_execbuf(fd, &execbuf) == -ENOENT);
Is return (a function)? Brackets shouldn't be used to confused the
unsuspecting reader. ;)
-Chris
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