long __init lmb_reserve(unsigned long base, unsigned long size)
{
struct lmb_region *_rgn = &(lmb.reserved);
BUG_ON(0 == size);
return lmb_add_region(_rgn, base, size);
}
long __init lmb_reserve(u64 base, u64 size)
{
struct lmb_region *_rgn = &lmb.reserved;
BUG_ON(0 == size);
return lmb_add_region(_rgn, base, size);
}
long
lmb_reserve(u64 base, u64 size)
{
u64 offset = reloc_offset();
struct lmb *_lmb = PTRRELOC(&lmb);
struct lmb_region *_rgn = &(_lmb->reserved);
return lmb_add_region(_rgn, base, size);
}
long __init
lmb_reserve(unsigned long base, unsigned long size)
{
unsigned long offset = reloc_offset();
struct lmb *_lmb = PTRRELOC(&lmb);
struct lmb_region *_rgn = &(_lmb->reserved);
return lmb_add_region(_rgn, base, size);
}
/* This routine may be called with relocation disabled. */
long __init lmb_add(unsigned long base, unsigned long size)
{
struct lmb_region *_rgn = &(lmb.memory);
/* On pSeries LPAR systems, the first LMB is our RMO region. */
if (base == 0)
lmb.rmo_size = size;
return lmb_add_region(_rgn, base, size);
}
long lmb_add(u64 base, u64 size)
{
struct lmb_region *_rgn = &lmb.memory;
/* On pSeries LPAR systems, the first LMB is our RMO region. */
if (base == 0)
lmb.rmo_size = size;
return lmb_add_region(_rgn, base, size);
}
/* This routine called with relocation disabled. */
long
lmb_add(u64 base, u64 size)
{
u64 offset = reloc_offset();
struct lmb *_lmb = PTRRELOC(&lmb);
struct lmb_region *_rgn = &(_lmb->memory);
/* On pSeries LPAR systems, the first LMB is our RMO region. */
if ( base == 0 )
_lmb->rmo_size = size;
return lmb_add_region(_rgn, base, size);
}
long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{
struct lmb_region *rgn = &(lmb->reserved);
phys_addr_t rgnbegin, rgnend;
phys_addr_t end = base + size;
int i;
rgnbegin = rgnend = 0; /* supress gcc warnings */
/* Find the region where (base, size) belongs to */
for (i=0; i < rgn->cnt; i++) {
rgnbegin = rgn->region[i].base;
rgnend = rgnbegin + rgn->region[i].size;
if ((rgnbegin <= base) && (end <= rgnend))
break;
}
/* Didn't find the region */
if (i == rgn->cnt)
return -1;
/* Check to see if we are removing entire region */
if ((rgnbegin == base) && (rgnend == end)) {
lmb_remove_region(rgn, i);
return 0;
}
/* Check to see if region is matching at the front */
if (rgnbegin == base) {
rgn->region[i].base = end;
rgn->region[i].size -= size;
return 0;
}
/* Check to see if the region is matching at the end */
if (rgnend == end) {
rgn->region[i].size -= size;
return 0;
}
/*
* We need to split the entry - adjust the current one to the
* beginging of the hole and add the region after hole.
*/
rgn->region[i].size = base - rgn->region[i].base;
return lmb_add_region(rgn, end, rgnend - end);
}
u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
{
long i, j;
u64 base = 0;
u64 res_base;
BUG_ON(0 == size);
size = lmb_align_up(size, align);
/* On some platforms, make sure we allocate lowmem */
/* Note that LMB_REAL_LIMIT may be LMB_ALLOC_ANYWHERE */
if (max_addr == LMB_ALLOC_ANYWHERE)
max_addr = LMB_REAL_LIMIT;
for (i = lmb.memory.cnt - 1; i >= 0; i--) {
u64 lmbbase = lmb.memory.region[i].base;
u64 lmbsize = lmb.memory.region[i].size;
if (lmbsize < size)
continue;
if (max_addr == LMB_ALLOC_ANYWHERE)
base = lmb_align_down(lmbbase + lmbsize - size, align);
else if (lmbbase < max_addr) {
base = min(lmbbase + lmbsize, max_addr);
base = lmb_align_down(base - size, align);
} else
continue;
while (base && lmbbase <= base) {
j = lmb_overlaps_region(&lmb.reserved, base, size);
if (j < 0) {
/* this area isn't reserved, take it */
if (lmb_add_region(&lmb.reserved, base, size) < 0)
return 0;
return base;
}
res_base = lmb.reserved.region[j].base;
if (res_base < size)
break;
base = lmb_align_down(res_base - size, align);
}
}
return 0;
}
phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr)
{
long i, j;
phys_addr_t base = 0;
phys_addr_t res_base;
for (i = lmb->memory.cnt-1; i >= 0; i--) {
phys_addr_t lmbbase = lmb->memory.region[i].base;
phys_size_t lmbsize = lmb->memory.region[i].size;
if (lmbsize < size)
continue;
if (max_addr == LMB_ALLOC_ANYWHERE)
base = lmb_align_down(lmbbase + lmbsize - size, align);
else if (lmbbase < max_addr) {
base = lmbbase + lmbsize;
if (base < lmbbase)
base = -1;
base = min(base, max_addr);
base = lmb_align_down(base - size, align);
} else
continue;
while (base && lmbbase <= base) {
j = lmb_overlaps_region(&lmb->reserved, base, size);
if (j < 0) {
/* This area isn't reserved, take it */
if (lmb_add_region(&lmb->reserved, base,
lmb_align_up(size,
align)) < 0)
return 0;
return base;
}
res_base = lmb->reserved.region[j].base;
if (res_base < size)
break;
base = lmb_align_down(res_base - size, align);
}
}
return 0;
}
unsigned long __init __lmb_alloc_base(unsigned long size, unsigned long align,
unsigned long max_addr)
{
long i, j;
unsigned long base = 0;
BUG_ON(0 == size);
#ifdef CONFIG_PPC32
/* On 32-bit, make sure we allocate lowmem */
if (max_addr == LMB_ALLOC_ANYWHERE)
max_addr = __max_low_memory;
#endif
for (i = lmb.memory.cnt-1; i >= 0; i--) {
unsigned long lmbbase = lmb.memory.region[i].base;
unsigned long lmbsize = lmb.memory.region[i].size;
if (max_addr == LMB_ALLOC_ANYWHERE)
base = _ALIGN_DOWN(lmbbase + lmbsize - size, align);
else if (lmbbase < max_addr) {
base = min(lmbbase + lmbsize, max_addr);
base = _ALIGN_DOWN(base - size, align);
} else
continue;
while ((lmbbase <= base) &&
((j = lmb_overlaps_region(&lmb.reserved, base, size)) >= 0) )
base = _ALIGN_DOWN(lmb.reserved.region[j].base - size,
align);
if ((base != 0) && (lmbbase <= base))
break;
}
if (i < 0)
return 0;
lmb_add_region(&lmb.reserved, base, size);
return base;
}
static u64 __init lmb_alloc_nid_unreserved(u64 start, u64 end,
u64 size, u64 align)
{
u64 base, res_base;
long j;
base = lmb_align_down((end - size), align);
while (start <= base) {
j = lmb_overlaps_region(&lmb.reserved, base, size);
if (j < 0) {
/* this area isn't reserved, take it */
if (lmb_add_region(&lmb.reserved, base, size) < 0)
base = ~(u64)0;
return base;
}
res_base = lmb.reserved.region[j].base;
if (res_base < size)
break;
base = lmb_align_down(res_base - size, align);
}
return ~(u64)0;
}
u64
lmb_alloc_base(u64 size, u64 align, u64 max_addr)
{
long i, j;
u64 base = 0;
u64 offset = reloc_offset();
struct lmb *_lmb = PTRRELOC(&lmb);
struct lmb_region *_mem = &(_lmb->memory);
struct lmb_region *_rsv = &(_lmb->reserved);
for (i=_mem->cnt-1; i >= 0; i--) {
u64 lmbbase = _mem->region[i].base;
u64 lmbsize = _mem->region[i].size;
if ( max_addr == LMB_ALLOC_ANYWHERE )
base = _ALIGN_DOWN(lmbbase+lmbsize-size, align);
else if ( lmbbase < max_addr )
base = _ALIGN_DOWN(min(lmbbase+lmbsize,max_addr)-size, align);
else
continue;
while ( (lmbbase <= base) &&
((j = lmb_overlaps_region(_rsv,base,size)) >= 0) ) {
base = _ALIGN_DOWN(_rsv->region[j].base-size, align);
}
if ( (base != 0) && (lmbbase <= base) )
break;
}
if ( i < 0 )
return 0;
lmb_add_region(_rsv, base, size);
return base;
}
long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{
struct lmb_region *_rgn = &(lmb->reserved);
return lmb_add_region(_rgn, base, size);
}
/* This routine may be called with relocation disabled. */
long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{
struct lmb_region *_rgn = &(lmb->memory);
return lmb_add_region(_rgn, base, size);
}
