diff options
| -rw-r--r-- | arch/m68k/amiga/chipram.c | 118 |
1 files changed, 61 insertions, 57 deletions
diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c index dd0447db1c9..e757ffffbc8 100644 --- a/arch/m68k/amiga/chipram.c +++ b/arch/m68k/amiga/chipram.c @@ -23,101 +23,105 @@ unsigned long amiga_chip_size; EXPORT_SYMBOL(amiga_chip_size); static struct resource chipram_res = { - .name = "Chip RAM", .start = CHIP_PHYSADDR + .name = "Chip RAM", .start = CHIP_PHYSADDR }; static unsigned long chipavail; void __init amiga_chip_init(void) { - if (!AMIGAHW_PRESENT(CHIP_RAM)) - return; + if (!AMIGAHW_PRESENT(CHIP_RAM)) + return; - chipram_res.end = amiga_chip_size-1; - request_resource(&iomem_resource, &chipram_res); + chipram_res.end = amiga_chip_size-1; + request_resource(&iomem_resource, &chipram_res); - chipavail = amiga_chip_size; + chipavail = amiga_chip_size; } void *amiga_chip_alloc(unsigned long size, const char *name) { - struct resource *res; + struct resource *res; - /* round up */ - size = PAGE_ALIGN(size); + /* round up */ + size = PAGE_ALIGN(size); #ifdef DEBUG - printk("amiga_chip_alloc: allocate %ld bytes\n", size); + printk("amiga_chip_alloc: allocate %ld bytes\n", size); #endif - res = kzalloc(sizeof(struct resource), GFP_KERNEL); - if (!res) - return NULL; - res->name = name; - - if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) { - kfree(res); - return NULL; - } - chipavail -= size; + res = kzalloc(sizeof(struct resource), GFP_KERNEL); + if (!res) + return NULL; + res->name = name; + + if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, + NULL, NULL) < 0) { + kfree(res); + return NULL; + } + chipavail -= size; #ifdef DEBUG - printk("amiga_chip_alloc: returning %lx\n", res->start); + printk("amiga_chip_alloc: returning %lx\n", res->start); #endif - return (void *)ZTWO_VADDR(res->start); + return (void *)ZTWO_VADDR(res->start); } EXPORT_SYMBOL(amiga_chip_alloc); - /* - * Warning: - * amiga_chip_alloc_res is meant only for drivers that need to allocate - * Chip RAM before kmalloc() is functional. As a consequence, those - * drivers must not free that Chip RAM afterwards. - */ + /* + * Warning: + * amiga_chip_alloc_res is meant only for drivers that need to + * allocate Chip RAM before kmalloc() is functional. As a consequence, + * those drivers must not free that Chip RAM afterwards. + */ void * __init amiga_chip_alloc_res(unsigned long size, struct resource *res) { - unsigned long start; + unsigned long start; - /* round up */ - size = PAGE_ALIGN(size); - /* dmesg into chipmem prefers memory at the safe end */ - start = CHIP_PHYSADDR + chipavail - size; + /* round up */ + size = PAGE_ALIGN(size); + /* dmesg into chipmem prefers memory at the safe end */ + start = CHIP_PHYSADDR + chipavail - size; #ifdef DEBUG - printk("amiga_chip_alloc_res: allocate %ld bytes\n", size); + printk("amiga_chip_alloc_res: allocate %ld bytes\n", size); #endif - if (allocate_resource(&chipram_res, res, size, start, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) { - printk("amiga_chip_alloc_res: first alloc failed!\n"); - if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, PAGE_SIZE, NULL, NULL) < 0) - return NULL; - } - chipavail -= size; + if (allocate_resource(&chipram_res, res, size, start, UINT_MAX, + PAGE_SIZE, NULL, NULL) < 0) { + printk("amiga_chip_alloc_res: first alloc failed!\n"); + if (allocate_resource(&chipram_res, res, size, 0, UINT_MAX, + PAGE_SIZE, NULL, NULL) < 0) + return NULL; + } + chipavail -= size; #ifdef DEBUG - printk("amiga_chip_alloc_res: returning %lx\n", res->start); + printk("amiga_chip_alloc_res: returning %lx\n", res->start); #endif - return (void *)ZTWO_VADDR(res->start); + return (void *)ZTWO_VADDR(res->start); } void amiga_chip_free(void *ptr) { - unsigned long start = ZTWO_PADDR(ptr); - struct resource **p, *res; - unsigned long size; - - for (p = &chipram_res.child; (res = *p); p = &res->sibling) { - if (res->start != start) - continue; - *p = res->sibling; - size = res->end-start; + unsigned long start = ZTWO_PADDR(ptr); + struct resource **p, *res; + unsigned long size; + + for (p = &chipram_res.child; (res = *p); p = &res->sibling) { + if (res->start != start) + continue; + *p = res->sibling; + size = res->end-start; #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 - chipavail += size; - kfree(res); - return; - } - printk("amiga_chip_free: trying to free nonexistent region at %p\n", ptr); + chipavail += size; + kfree(res); + return; + } + printk("amiga_chip_free: trying to free nonexistent region at %p\n", + ptr); } EXPORT_SYMBOL(amiga_chip_free); |