[Mesa-dev] [PATCH] i965: Extend the negative 32-bit deltas to 64-bits

[Chris Wilson]

Quoting Sergii Romantsov (2018-04-02 07:59:06)
> Gen8+ use 48-bit address relocations so need to extend the sign
> to 64-bit return value. Without it we have higher bits zeroed
> and missing the negavive values.
> Haswell and older use 32-bit deltas so are unaffected by this issue.
> 
> v2:
>   used int32_t fucntion parameter instead of explicit type conversion.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101408
> Signed-off-by: Sergii Romantsov <sergii.romantsov at globallogic.com>
> Tested-by: Andriy Khulap <andriy.khulap at globallogic.com>

Lgtm,

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris