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Date: Fri, 10 May 2024 18:16:42 +0300
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Devarsh Thakkar <devarsht@ti.com>, mchehab@kernel.org,
	hverkuil-cisco@xs4all.nl, linux-media@vger.kernel.org,
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Subject: Re: [PATCH v7 8/8] gpu: ipu-v3: Use generic macro for rounding to
 nearest multiple
Message-ID: <20240510151642.GA17158@pendragon.ideasonboard.com>
References: <20240509184010.4065359-1-devarsht@ti.com>
 <Zj43WDlT1aFpgdVv@smile.fi.intel.com>
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In-Reply-To: <Zj43WDlT1aFpgdVv@smile.fi.intel.com>

On Fri, May 10, 2024 at 06:03:52PM +0300, Andy Shevchenko wrote:
> On Fri, May 10, 2024 at 12:10:10AM +0530, Devarsh Thakkar wrote:
> > Use generic macro round_closest_up for rounding to nearest multiple instead
> 
> round_closest_up()
> 
> We refer to the functions as func().
> 
> > of using local function.
> 
> ...
> 
> > @@ -565,7 +563,7 @@ static void find_best_seam(struct ipu_image_convert_ctx *ctx,
> >  		 * The closest input sample position that we could actually
> >  		 * start the input tile at, 19.13 fixed point.
> >  		 */
> > -		in_pos_aligned = round_closest(in_pos, 8192U * in_align);
> > +		in_pos_aligned = round_closest_up(in_pos, 8192U * in_align);
> >  		/* Convert 19.13 fixed point to integer */
> >  		in_pos_rounded = in_pos_aligned / 8192U;
> 
> Oh, these seems to be better to use either ALIGN*(), or PFN_*() / PAGE_*()
> families of macros. What the semantic of 8192 is?

The comment mentions 19.13 fixed point, so I assume that's the
fractional part of the integer. It doesn't seem related to pages.

-- 
Regards,

Laurent Pinchart