On Wed, Aug 17, 2016 at 11:47:07AM +0300, Joonas Lahtinen wrote:
> On ti, 2016-08-16 at 11:42 +0100, Chris Wilson wrote:
> > @@ -278,6 +283,9 @@ static void eb_destroy(struct eb_vmas *eb)
> >
> > static inline int use_cpu_reloc(struct drm_i915_gem_object *obj)
> > {
> > + if (DBG_USE_CPU_RELOC)
> > + return DBG_USE_CPU_RELOC > 0;
>
> If DBG_USE_CPU_RELOC == 0, this path is never taken. So it would have
> to be set at -1 to yield false. Unexpected when defining it. 0 and 1 is
> the de facto. So drop a comment at defining site.
>
> > +#define KMAP 0x4
>
> At least make a comment that CLFLUSH_AFTER and CLFLUSH_BEFORE are also
> in the flag set.
#define CLFLUSH_FLAGS (BEFORE | AFTER)
BUILD_BUG_ON(KMAP & CLFLUSH_FLAGS)
BUILD_BUG_ON((KMAP | CLFLUSH_FLAGS) & PAGE_MASK)
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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