well, I wouldn't call this as a typo.
This is a logic fix and deserves a better subject a proper
commit message an also fixes tag:
Fixes: 4395890a4855 ("drm/i915: Introduce private PAT management")
On Thu, Sep 14, 2017 at 05:24:09PM +0000, Zhi Wang wrote:
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Ben Widawsky <benjamin.widawsky@xxxxxxxxx>
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> Signed-off-by: Zhi Wang <zhi.a.wang@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 729ebaf..37cd086 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -2965,7 +2965,7 @@ static unsigned int bdw_private_pat_match(u8 src, u8 dst)
> };
>
> /* Cache attribute has to be matched. */
> - if (GEN8_PPAT_GET_CA(src) == GEN8_PPAT_GET_CA(dst))
> + if (GEN8_PPAT_GET_CA(src) != GEN8_PPAT_GET_CA(dst))
> return 0;
>
> score |= CA_MATCH;
> --
> 2.7.4
>
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