Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx> writes: > diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h > index 0d52f57fca04..73668a21ae78 100644 > --- a/arch/powerpc/include/asm/page.h > +++ b/arch/powerpc/include/asm/page.h > @@ -319,13 +319,4 @@ struct vm_area_struct; > #endif /* __ASSEMBLY__ */ > #include <asm/slice.h> > > -/* > - * Allow 30-bit DMA for very limited Broadcom wifi chips on many powerbooks. This comment got lost. > diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c > index 9191a66b3bc5..2a69f87585df 100644 > --- a/arch/powerpc/mm/mem.c > +++ b/arch/powerpc/mm/mem.c > @@ -237,9 +238,14 @@ void __init paging_init(void) > printk(KERN_DEBUG "Memory hole size: %ldMB\n", > (long int)((top_of_ram - total_ram) >> 20)); > > + if (IS_ENABLED(CONFIG_PPC32)) Can you please propagate it here? > + zone_dma_bits = 30; > + else > + zone_dma_bits = 31; > + cheers
