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    SubjectRe: [RFC: 2.6 patch] ppc: remove APUS support
    On Mon, 2 Jul 2007, Adrian Bunk wrote:
    > On Mon, Jul 02, 2007 at 12:55:36AM +0200, Geert Uytterhoeven wrote:
    > > On Sun, 1 Jul 2007, Adrian Bunk wrote:
    > > > Current status of APUS:
    > > > - arch/powerpc/: a patch to remove it is in powerpc.git
    > > > - arch/ppc/: marked BROKEN since 2 years
    > > >
    > > > This patch therefore removes the remaining parts of APUS support.
    > >
    > > > --- linux-2.6.22-rc6-mm1/include/asm-m68k/pgtable.h.old 2007-06-30 01:23:33.000000000 +0200
    > > > +++ linux-2.6.22-rc6-mm1/include/asm-m68k/pgtable.h 2007-06-30 01:23:43.000000000 +0200
    > > > @@ -107,8 +107,6 @@ extern void *empty_zero_page;
    > > > /* 64-bit machines, beware! SRB. */
    > > > #define SIZEOF_PTR_LOG2 2
    > > >
    > > > -#define mm_end_of_chunk(addr, len) 0
    > > > -
    > > > extern void kernel_set_cachemode(void *addr, unsigned long size, int cmode);
    > > >
    > > > /*
    > > > --- linux-2.6.22-rc6-mm1/drivers/scsi/a2091.c.old 2007-06-30 01:23:53.000000000 +0200
    > > > +++ linux-2.6.22-rc6-mm1/drivers/scsi/a2091.c 2007-06-30 01:24:08.000000000 +0200
    > > > @@ -46,8 +46,7 @@ static int dma_setup(struct scsi_cmnd *c
    > > > struct Scsi_Host *instance = cmd->device->host;
    > > >
    > > > /* don't allow DMA if the physical address is bad */
    > > > - if (addr & A2091_XFER_MASK ||
    > > > - (!dir_in && mm_end_of_chunk (addr, cmd->SCp.this_residual)))
    > > > + if (addr & A2091_XFER_MASK)
    > > > {
    > > > HDATA(instance)->dma_bounce_len = (cmd->SCp.this_residual + 511)
    > > > & ~0x1ff;
    > > > --- linux-2.6.22-rc6-mm1/drivers/scsi/a3000.c.old 2007-06-30 01:24:17.000000000 +0200
    > > > +++ linux-2.6.22-rc6-mm1/drivers/scsi/a3000.c 2007-06-30 01:24:26.000000000 +0200
    > > > @@ -54,8 +54,7 @@ static int dma_setup(struct scsi_cmnd *c
    > > > * end of a physical memory chunk, then allocate a bounce
    > > > * buffer
    > > > */
    > > > - if (addr & A3000_XFER_MASK ||
    > > > - (!dir_in && mm_end_of_chunk (addr, cmd->SCp.this_residual)))
    > > > + if (addr & A3000_XFER_MASK)
    > > > {
    > > > HDATA(a3000_host)->dma_bounce_len = (cmd->SCp.this_residual + 511)
    > > > & ~0x1ff;
    > > > --- linux-2.6.22-rc6-mm1/drivers/scsi/gvp11.c.old 2007-06-30 01:24:35.000000000 +0200
    > > > +++ linux-2.6.22-rc6-mm1/drivers/scsi/gvp11.c 2007-06-30 01:24:46.000000000 +0200
    > > > @@ -54,8 +54,7 @@ static int dma_setup(struct scsi_cmnd *c
    > > > static int scsi_alloc_out_of_range = 0;
    > > >
    > > > /* use bounce buffer if the physical address is bad */
    > > > - if (addr & HDATA(cmd->device->host)->dma_xfer_mask ||
    > > > - (!dir_in && mm_end_of_chunk (addr, cmd->SCp.this_residual)))
    > > > + if (addr & HDATA(cmd->device->host)->dma_xfer_mask)
    > > > {
    > > > HDATA(cmd->device->host)->dma_bounce_len = (cmd->SCp.this_residual + 511)
    > > > & ~0x1ff;
    > >
    > > These seem to be completely unrelated to removing APUS support?
    >
    > For APUS mm_end_of_chunk() was an actual function, otherwise it was
    > always 0.

    Oops, you're right.

    Gr{oetje,eeting}s,

    Geert

    --
    Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

    In personal conversations with technical people, I call myself a hacker. But
    when I'm talking to journalists I just say "programmer" or something like that.
    -- Linus Torvalds
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