On 01/18/2018 02:44 PM, Michael S. Tsirkin wrote:
> From: Yuval Shaia <yuval.sh...@oracle.com>
>
> This function should be declared in generic header file so we can
> utilize it.
>
> Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
> Signed-off-by: Yuval Shaia <yuval.sh...@oracle.com>
> Signed-off-by: Marcel Apfelbaum <mar...@redhat.com>
> Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
> Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
> ---
> include/qemu/host-utils.h | 10 ++++++++++
> hw/pci/shpc.c | 13 ++-----------
> 2 files changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/include/qemu/host-utils.h b/include/qemu/host-utils.h
> index 5ac621c..38da849 100644
> --- a/include/qemu/host-utils.h
> +++ b/include/qemu/host-utils.h
> @@ -400,6 +400,16 @@ static inline uint64_t pow2ceil(uint64_t value)
> return 0x8000000000000000ull >> (n - 1);
> }
>
> +static inline uint32_t pow2roundup32(uint32_t x)
> +{
> + x |= (x >> 1);
> + x |= (x >> 2);
> + x |= (x >> 4);
> + x |= (x >> 8);
> + x |= (x >> 16);
> + return x + 1;
> +}How does this differ from pow2ceil(), other than the difference in type? -- Eric Blake, Principal Software Engineer Red Hat, Inc. +1-919-301-3266 Virtualization: qemu.org | libvirt.org
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