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Message-ID: <b392c10f-78bb-466d-a3e0-cf5b95edb4cb@VA3EHSMHS014.ehs.local>
Date: Fri, 25 Jun 2010 15:49:26 -0700
From: Stephen Neuendorffer <stephen.neuendorffer@...inx.com>
To: "Grant Likely" <grant.likely@...retlab.ca>,
<benh@...nel.crashing.org>, <monstr@...str.eu>
CC: <microblaze-uclinux@...e.uq.edu.au>,
<devicetree-discuss@...ts.ozlabs.org>,
<linux-kernel@...r.kernel.org>, <jeremy.kerr@...onical.com>,
<sfr@...b.auug.org.au>
Subject: RE: [PATCH] of/flattree: Use common ALIGN() macro instead of archspecific _ALIGN
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...
Steve
Reviewed-by: Stephen Neuendorffer <stephen.neuendorffer@...inx.com>
> -----Original Message-----
> From:
devicetree-discuss-bounces+stephen.neuendorffer=xilinx.com@...ts.ozlabs.
org [mailto:devicetree-
> discuss-bounces+stephen.neuendorffer=xilinx.com@...ts.ozlabs.org] On
Behalf Of Grant Likely
> Sent: Friday, June 25, 2010 3:03 PM
> To: benh@...nel.crashing.org; monstr@...str.eu
> Cc: microblaze-uclinux@...e.uq.edu.au;
devicetree-discuss@...ts.ozlabs.org; linux-
> kernel@...r.kernel.org; jeremy.kerr@...onical.com;
sfr@...b.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@...retlab.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
>
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