Re: 答复: Prefmem of bus 3

[ron minnich]

On 10 Mar 2004, Eric W. Biederman wrote:
> It has the additional comment:
>
> /* Get the resource granularity */
>    gran = 1UL << resource->gran;
>
> /* For a non bridge resource granularity and alignment are the same.
>     * For a bridge resource align is the largest needed alignment below
>     * the bridge.  While the granularity is simply how many low bits of the
>     * address cannot be set.
>     */
>
> /* Get the limit (rounded up) */
>    limit = base + ((resource->size + gran - 1UL) & ~(gran - 1UL)) -1UL;

not to worry, Ollie and I fixed it too. We're going to have some real 
collisions when you commit.

We are using the round() function for clarity, e.g.
    limit = base + round(resource->size, gran) - 1UL;

ron