video: fbdev: amifb: add FIXME about dead APUS support
On 5/14/20 10:21 PM, Geert Uytterhoeven wrote: > These #ifdefs are relics from APUS (Amiga Power-Up System), which > added a PPC board. APUS support was killed off a long time ago, > when arch/ppc/ was still king, but these #ifdefs were missed, because > they didn't test for CONFIG_APUS. Add FIXME about using the C code variants (APUS ones) in the future. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/767d36ff-22ec-8136-7ebc-1d9d0d3ac98d@samsung.com
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@ -575,6 +575,12 @@ static u_short maxfmode, chipset;
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#define downx(x, v) ((v) & -(x))
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#define modx(x, v) ((v) & ((x) - 1))
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/*
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* FIXME: Use C variants of the code marked with #ifdef __mc68000__
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* in the driver. It shouldn't negatively affect the performance and
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* is required for APUS support (once it is re-added to the kernel).
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* Needs to be tested on the hardware though..
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*/
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/* if x1 is not a constant, this macro won't make real sense :-) */
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#ifdef __mc68000__
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#define DIVUL(x1, x2) ({int res; asm("divul %1,%2,%3": "=d" (res): \
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