[PATCH] of/flattree: Use common ALIGN() macro instead of archspecific _ALIGN
Stephen Neuendorffer
stephen.neuendorffer at xilinx.com
Sat Jun 26 09:18:50 EST 2010
> -----Original Message-----
> From: glikely at secretlab.ca [mailto:glikely at secretlab.ca] On Behalf Of Grant Likely
> Sent: Friday, June 25, 2010 4:16 PM
> To: Stephen Neuendorffer
> Cc: benh at kernel.crashing.org; monstr at monstr.eu; microblaze-uclinux at itee.uq.edu.au; devicetree-
> discuss at lists.ozlabs.org; linux-kernel at vger.kernel.org; jeremy.kerr at canonical.com;
> sfr at canb.auug.org.au
> Subject: Re: [PATCH] of/flattree: Use common ALIGN() macro instead of archspecific _ALIGN
>
> On Fri, Jun 25, 2010 at 4:49 PM, Stephen Neuendorffer
> <stephen.neuendorffer at xilinx.com> wrote:
> > Grant,
> >
> > I need this for the PCI project. I also have a couple of other
> > generalizations of the drivers/of code
> > to get it to run after boot time in an X86 system...
>
> Send me your patches! :-) Get them to me soon and I'll queue them up
> for the next merge window.
>
> g.
Dangit, I just got the code compiling, and now I find out that X86 doesn't support out_be32()... :)
You'd think that somewhere somebody might have realized that all the duplicated driver macros that
do that are a bad idea...
Steve
>
> >
> > Steve
> >
> > Reviewed-by: Stephen Neuendorffer <stephen.neuendorffer at xilinx.com>
> >
> >> -----Original Message-----
> >> From:
> > devicetree-discuss-bounces+stephen.neuendorffer=xilinx.com at lists.ozlabs.
> > org [mailto:devicetree-
> >> discuss-bounces+stephen.neuendorffer=xilinx.com at lists.ozlabs.org] On
> > Behalf Of Grant Likely
> >> Sent: Friday, June 25, 2010 3:03 PM
> >> To: benh at kernel.crashing.org; monstr at monstr.eu
> >> Cc: microblaze-uclinux at itee.uq.edu.au;
> > devicetree-discuss at lists.ozlabs.org; linux-
> >> kernel at vger.kernel.org; jeremy.kerr at canonical.com;
> > sfr at canb.auug.org.au
> >> Subject: [PATCH] of/flattree: Use common ALIGN() macro instead of
> > archspecific _ALIGN
> >>
> >> There's no reason to use the powerpc-specific _ALIGN macro in the fdt
> >> code. Replace it with ALIGN() from kernel.h
> >>
> >> Signed-off-by: Grant Likely <grant.likely at secretlab.ca>
> >> ---
> >> arch/microblaze/include/asm/page.h | 7 -------
> >> drivers/of/fdt.c | 20 ++++++++++----------
> >> 2 files changed, 10 insertions(+), 17 deletions(-)
> >>
> >> diff --git a/arch/microblaze/include/asm/page.h
> > b/arch/microblaze/include/asm/page.h
> >> index 464ff32..2fd4761 100644
> >> --- a/arch/microblaze/include/asm/page.h
> >> +++ b/arch/microblaze/include/asm/page.h
> >> @@ -39,13 +39,6 @@
> >> #define PAGE_UP(addr)
> > (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
> >> #define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
> >>
> >> -/* align addr on a size boundary - adjust address up/down if needed
> > */
> >> -#define _ALIGN_UP(addr, size)
> > (((addr)+((size)-1))&(~((size)-1)))
> >> -#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
> >> -
> >> -/* align addr on a size boundary - adjust address up if needed */
> >> -#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
> >> -
> >> #ifndef CONFIG_MMU
> >> /*
> >> * PAGE_OFFSET -- the first address of the first page of memory. When
> > not
> >> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> >> index b6987bb..d61fda8 100644
> >> --- a/drivers/of/fdt.c
> >> +++ b/drivers/of/fdt.c
> >> @@ -69,9 +69,9 @@ int __init of_scan_flat_dt(int (*it)(unsigned long
> > node,
> >> u32 sz = be32_to_cpup((__be32 *)p);
> >> p += 8;
> >> if (be32_to_cpu(initial_boot_params->version) <
> > 0x10)
> >> - p = _ALIGN(p, sz >= 8 ? 8 : 4);
> >> + p = ALIGN(p, sz >= 8 ? 8 : 4);
> >> p += sz;
> >> - p = _ALIGN(p, 4);
> >> + p = ALIGN(p, 4);
> >> continue;
> >> }
> >> if (tag != OF_DT_BEGIN_NODE) {
> >> @@ -80,7 +80,7 @@ int __init of_scan_flat_dt(int (*it)(unsigned long
> > node,
> >> }
> >> depth++;
> >> pathp = (char *)p;
> >> - p = _ALIGN(p + strlen(pathp) + 1, 4);
> >> + p = ALIGN(p + strlen(pathp) + 1, 4);
> >> if ((*pathp) == '/') {
> >> char *lp, *np;
> >> for (lp = NULL, np = pathp; *np; np++)
> >> @@ -109,7 +109,7 @@ unsigned long __init of_get_flat_dt_root(void)
> >> p += 4;
> >> BUG_ON(be32_to_cpup((__be32 *)p) != OF_DT_BEGIN_NODE);
> >> p += 4;
> >> - return _ALIGN(p + strlen((char *)p) + 1, 4);
> >> + return ALIGN(p + strlen((char *)p) + 1, 4);
> >> }
> >>
> >> /**
> >> @@ -138,7 +138,7 @@ void *__init of_get_flat_dt_prop(unsigned long
> > node, const char *name,
> >> noff = be32_to_cpup((__be32 *)(p + 4));
> >> p += 8;
> >> if (be32_to_cpu(initial_boot_params->version) < 0x10)
> >> - p = _ALIGN(p, sz >= 8 ? 8 : 4);
> >> + p = ALIGN(p, sz >= 8 ? 8 : 4);
> >>
> >> nstr = find_flat_dt_string(noff);
> >> if (nstr == NULL) {
> >> @@ -151,7 +151,7 @@ void *__init of_get_flat_dt_prop(unsigned long
> > node, const char *name,
> >> return (void *)p;
> >> }
> >> p += sz;
> >> - p = _ALIGN(p, 4);
> >> + p = ALIGN(p, 4);
> >> } while (1);
> >> }
> >>
> >> @@ -184,7 +184,7 @@ static void *__init unflatten_dt_alloc(unsigned
> > long *mem, unsigned long size,
> >> {
> >> void *res;
> >>
> >> - *mem = _ALIGN(*mem, align);
> >> + *mem = ALIGN(*mem, align);
> >> res = (void *)*mem;
> >> *mem += size;
> >>
> >> @@ -220,7 +220,7 @@ unsigned long __init unflatten_dt_node(unsigned
> > long mem,
> >> *p += 4;
> >> pathp = (char *)*p;
> >> l = allocl = strlen(pathp) + 1;
> >> - *p = _ALIGN(*p + l, 4);
> >> + *p = ALIGN(*p + l, 4);
> >>
> >> /* version 0x10 has a more compact unit name here instead of the
> > full
> >> * path. we accumulate the full path size using "fpsize", we'll
> > rebuild
> >> @@ -299,7 +299,7 @@ unsigned long __init unflatten_dt_node(unsigned
> > long mem,
> >> noff = be32_to_cpup((__be32 *)((*p) + 4));
> >> *p += 8;
> >> if (be32_to_cpu(initial_boot_params->version) < 0x10)
> >> - *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
> >> + *p = ALIGN(*p, sz >= 8 ? 8 : 4);
> >>
> >> pname = find_flat_dt_string(noff);
> >> if (pname == NULL) {
> >> @@ -333,7 +333,7 @@ unsigned long __init unflatten_dt_node(unsigned
> > long mem,
> >> *prev_pp = pp;
> >> prev_pp = &pp->next;
> >> }
> >> - *p = _ALIGN((*p) + sz, 4);
> >> + *p = ALIGN((*p) + sz, 4);
> >> }
> >> /* with version 0x10 we may not have the name property, recreate
> >> * it here from the unit name if absent
> >>
> >> _______________________________________________
> >> devicetree-discuss mailing list
> >> devicetree-discuss at lists.ozlabs.org
> >> https://lists.ozlabs.org/listinfo/devicetree-discuss
> >
> >
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> >
> >
>
>
>
> --
> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.
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