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m68k/amiga: Chip RAM - Use tabs for indentation

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Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven 2011-05-21 20:46:39 +02:00
parent 02f8c6aee8
commit 5be3246306
1 changed files with 59 additions and 55 deletions
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114
arch/m68k/amiga/chipram.c
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@ -23,101 +23,105 @@ unsigned long amiga_chip_size;
EXPORT_SYMBOL(amiga_chip_size); EXPORT_SYMBOL(amiga_chip_size);
static struct resource chipram_res = { static struct resource chipram_res = {
.name = "Chip RAM", .start = CHIP_PHYSADDR .name = "Chip RAM", .start = CHIP_PHYSADDR
}; };
static unsigned long chipavail; static unsigned long chipavail;
void __init amiga_chip_init(void) void __init amiga_chip_init(void)
{ {
if (!AMIGAHW_PRESENT(CHIP_RAM)) if (!AMIGAHW_PRESENT(CHIP_RAM))
return; return;
chipram_res.end = amiga_chip_size-1; chipram_res.end = amiga_chip_size-1;
request_resource(&iomem_resource, &chipram_res); request_resource(&iomem_resource, &chipram_res);
chipavail = amiga_chip_size; chipavail = amiga_chip_size;
} }
void *amiga_chip_alloc(unsigned long size, const char *name) void *amiga_chip_alloc(unsigned long size, const char *name)
{ {
struct resource *res; struct resource *res;
/* round up */ /* round up */
size = PAGE_ALIGN(size); size = PAGE_ALIGN(size);
#ifdef DEBUG #ifdef DEBUG
printk("amiga_chip_alloc: allocate %ld bytes\n", size); printk("amiga_chip_alloc: allocate %ld bytes\n", size);
#endif #endif
res = kzalloc(sizeof(struct resource), GFP_KERNEL); res = kzalloc(sizeof(struct resource), GFP_KERNEL);
if (!res) if (!res)
return NULL; return NULL;
res->name = name; res->name = name;
if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) { if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE,
kfree(res); NULL, NULL) < 0) {
return NULL; kfree(res);
} return NULL;
chipavail -= size; }
chipavail -= size;
#ifdef DEBUG #ifdef DEBUG
printk("amiga_chip_alloc: returning %lx\n", res->start); printk("amiga_chip_alloc: returning %lx\n", res->start);
#endif #endif
return (void *)ZTWO_VADDR(res->start); return (void *)ZTWO_VADDR(res->start);
} }
EXPORT_SYMBOL(amiga_chip_alloc); EXPORT_SYMBOL(amiga_chip_alloc);
/* /*
* Warning: * Warning:
* amiga_chip_alloc_res is meant only for drivers that need to allocate * amiga_chip_alloc_res is meant only for drivers that need to
* Chip RAM before kmalloc() is functional. As a consequence, those * allocate Chip RAM before kmalloc() is functional. As a consequence,
* drivers must not free that Chip RAM afterwards. * those drivers must not free that Chip RAM afterwards.
*/ */
void * __init amiga_chip_alloc_res(unsigned long size, struct resource *res) void * __init amiga_chip_alloc_res(unsigned long size, struct resource *res)
{ {
unsigned long start; unsigned long start;
/* round up */ /* round up */
size = PAGE_ALIGN(size); size = PAGE_ALIGN(size);
/* dmesg into chipmem prefers memory at the safe end */ /* dmesg into chipmem prefers memory at the safe end */
start = CHIP_PHYSADDR + chipavail - size; start = CHIP_PHYSADDR + chipavail - size;
#ifdef DEBUG #ifdef DEBUG
printk("amiga_chip_alloc_res: allocate %ld bytes\n", size); printk("amiga_chip_alloc_res: allocate %ld bytes\n", size);
#endif #endif
if (allocate_resource(&chipram_res, res, size, start, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) { if (allocate_resource(&chipram_res, res, size, start, UINT_MAX,
printk("amiga_chip_alloc_res: first alloc failed!\n"); PAGE_SIZE, NULL, NULL) < 0) {
if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) printk("amiga_chip_alloc_res: first alloc failed!\n");
return NULL; if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX,
} PAGE_SIZE, NULL, NULL) < 0)
chipavail -= size; return NULL;
}
chipavail -= size;
#ifdef DEBUG #ifdef DEBUG
printk("amiga_chip_alloc_res: returning %lx\n", res->start); printk("amiga_chip_alloc_res: returning %lx\n", res->start);
#endif #endif
return (void *)ZTWO_VADDR(res->start); return (void *)ZTWO_VADDR(res->start);
} }
void amiga_chip_free(void *ptr) void amiga_chip_free(void *ptr)
{ {
unsigned long start = ZTWO_PADDR(ptr); unsigned long start = ZTWO_PADDR(ptr);
struct resource **p, *res; struct resource **p, *res;
unsigned long size; unsigned long size;
for (p = &chipram_res.child; (res = *p); p = &res->sibling) { for (p = &chipram_res.child; (res = *p); p = &res->sibling) {
if (res->start != start) if (res->start != start)
continue; continue;
*p = res->sibling; *p = res->sibling;
size = res->end-start; size = res->end-start;
#ifdef DEBUG #ifdef DEBUG
printk("amiga_chip_free: free %ld bytes at %p\n", size, ptr); printk("amiga_chip_free: free %ld bytes at %p\n", size, ptr);
#endif #endif
chipavail += size; chipavail += size;
kfree(res); kfree(res);
return; return;
} }
printk("amiga_chip_free: trying to free nonexistent region at %p\n", ptr); printk("amiga_chip_free: trying to free nonexistent region at %p\n",
ptr);
} }
EXPORT_SYMBOL(amiga_chip_free); EXPORT_SYMBOL(amiga_chip_free);