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powerpc/boot: Rework of_claim() to make it 64bit friendly

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This patch fixes 64bit compile warnings and updates the wrapper code
to converge the kernel code in prom_init.

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Cédric Le Goater 2014-04-24 09:23:30 +02:00 committed by Benjamin Herrenschmidt
parent 9cc36bb0ac
commit 034e55e6c2
3 changed files with 12 additions and 10 deletions
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4
arch/powerpc/boot/of.c
View File

@ -40,8 +40,8 @@ static void *of_try_claim(unsigned long size)
#ifdef DEBUG
printf(" trying: 0x%08lx\n\r", claim_base);
#endif
addr = (unsigned long)of_claim(claim_base, size, 0);
if ((void *)addr != (void *)-1)
addr = (unsigned long) of_claim(claim_base, size, 0);
if (addr != PROM_ERROR)
break;
}
if (addr == 0)

3
arch/powerpc/boot/of.h
View File

@ -6,7 +6,8 @@ typedef void *ihandle;
void of_init(void *promptr);
int of_call_prom(const char *service, int nargs, int nret, ...);
void *of_claim(unsigned long virt, unsigned long size, unsigned long align);
unsigned int of_claim(unsigned long virt, unsigned long size,
unsigned long align);
void *of_vmlinux_alloc(unsigned long size);
void of_exit(void);
void *of_finddevice(const char *name);

15
arch/powerpc/boot/oflib.c
View File

@ -147,7 +147,8 @@ static int check_of_version(void)
return 1;
}
void *of_claim(unsigned long virt, unsigned long size, unsigned long align)
unsigned int of_claim(unsigned long virt, unsigned long size,
unsigned long align)
{
int ret;
prom_arg_t result;
@ -155,32 +156,32 @@ void *of_claim(unsigned long virt, unsigned long size, unsigned long align)
if (need_map < 0)
need_map = check_of_version();
if (align || !need_map)
return (void *) of_call_prom("claim", 3, 1, virt, size, align);
return of_call_prom("claim", 3, 1, virt, size, align);
ret = of_call_prom_ret("call-method", 5, 2, &result, "claim", memory,
align, size, virt);
if (ret != 0 || result == -1)
return (void *) -1;
return -1;
ret = of_call_prom_ret("call-method", 5, 2, &result, "claim", chosen_mmu,
align, size, virt);
/* 0x12 == coherent + read/write */
ret = of_call_prom("call-method", 6, 1, "map", chosen_mmu,
0x12, size, virt, virt);
return (void *) virt;
return virt;
}
void *of_vmlinux_alloc(unsigned long size)
{
unsigned long start = (unsigned long)_start, end = (unsigned long)_end;
void *addr;
unsigned long addr;
void *p;
/* With some older POWER4 firmware we need to claim the area the kernel
* will reside in. Newer firmwares don't need this so we just ignore
* the return value.
*/
addr = of_claim(start, end - start, 0);
printf("Trying to claim from 0x%lx to 0x%lx (0x%lx) got %p\r\n",
addr = (unsigned long) of_claim(start, end - start, 0);
printf("Trying to claim from 0x%lx to 0x%lx (0x%lx) got %lx\r\n",
start, end, end - start, addr);
p = malloc(size);