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-rw-r--r--lib/lmb.c72
1 files changed, 30 insertions, 42 deletions
diff --git a/lib/lmb.c b/lib/lmb.c
index 549fbb3d70cf..e4bbc617f468 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -15,14 +15,6 @@
#include <linux/bitops.h>
#include <linux/lmb.h>
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(fmt...) LMB_DBG(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
#define LMB_ALLOC_ANYWHERE 0
struct lmb lmb;
@@ -32,32 +24,32 @@ void lmb_dump_all(void)
#ifdef DEBUG
unsigned long i;
- DBG("lmb_dump_all:\n");
- DBG(" memory.cnt = 0x%lx\n", lmb.memory.cnt);
- DBG(" memory.size = 0x%llx\n",
+ pr_debug("lmb_dump_all:\n");
+ pr_debug(" memory.cnt = 0x%lx\n", lmb.memory.cnt);
+ pr_debug(" memory.size = 0x%llx\n",
(unsigned long long)lmb.memory.size);
for (i=0; i < lmb.memory.cnt ;i++) {
- DBG(" memory.region[0x%x].base = 0x%llx\n",
+ pr_debug(" memory.region[0x%x].base = 0x%llx\n",
i, (unsigned long long)lmb.memory.region[i].base);
- DBG(" .size = 0x%llx\n",
+ pr_debug(" .size = 0x%llx\n",
(unsigned long long)lmb.memory.region[i].size);
}
- DBG("\n reserved.cnt = 0x%lx\n", lmb.reserved.cnt);
- DBG(" reserved.size = 0x%lx\n", lmb.reserved.size);
+ pr_debug(" reserved.cnt = 0x%lx\n", lmb.reserved.cnt);
+ pr_debug(" reserved.size = 0x%lx\n", lmb.reserved.size);
for (i=0; i < lmb.reserved.cnt ;i++) {
- DBG(" reserved.region[0x%x].base = 0x%llx\n",
+ pr_debug(" reserved.region[0x%x].base = 0x%llx\n",
i, (unsigned long long)lmb.reserved.region[i].base);
- DBG(" .size = 0x%llx\n",
+ pr_debug(" .size = 0x%llx\n",
(unsigned long long)lmb.reserved.region[i].size);
}
#endif /* DEBUG */
}
-static unsigned long __init lmb_addrs_overlap(u64 base1,
- u64 size1, u64 base2, u64 size2)
+static unsigned long __init lmb_addrs_overlap(u64 base1, u64 size1,
+ u64 base2, u64 size2)
{
- return ((base1 < (base2+size2)) && (base2 < (base1+size1)));
+ return ((base1 < (base2 + size2)) && (base2 < (base1 + size1)));
}
static long __init lmb_addrs_adjacent(u64 base1, u64 size1,
@@ -101,7 +93,6 @@ static void __init lmb_coalesce_regions(struct lmb_region *rgn,
lmb_remove_region(rgn, r2);
}
-/* This routine called with relocation disabled. */
void __init lmb_init(void)
{
/* Create a dummy zero size LMB which will get coalesced away later.
@@ -117,7 +108,6 @@ void __init lmb_init(void)
lmb.reserved.cnt = 1;
}
-/* This routine may be called with relocation disabled. */
void __init lmb_analyze(void)
{
int i;
@@ -128,7 +118,6 @@ void __init lmb_analyze(void)
lmb.memory.size += lmb.memory.region[i].size;
}
-/* This routine called with relocation disabled. */
static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
{
unsigned long coalesced = 0;
@@ -141,7 +130,7 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
}
/* First try and coalesce this LMB with another. */
- for (i=0; i < rgn->cnt; i++) {
+ for (i = 0; i < rgn->cnt; i++) {
u64 rgnbase = rgn->region[i].base;
u64 rgnsize = rgn->region[i].size;
@@ -149,21 +138,20 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
/* Already have this region, so we're done */
return 0;
- adjacent = lmb_addrs_adjacent(base,size,rgnbase,rgnsize);
- if ( adjacent > 0 ) {
+ adjacent = lmb_addrs_adjacent(base, size, rgnbase, rgnsize);
+ if (adjacent > 0) {
rgn->region[i].base -= size;
rgn->region[i].size += size;
coalesced++;
break;
- }
- else if ( adjacent < 0 ) {
+ } else if (adjacent < 0) {
rgn->region[i].size += size;
coalesced++;
break;
}
}
- if ((i < rgn->cnt-1) && lmb_regions_adjacent(rgn, i, i+1) ) {
+ if ((i < rgn->cnt - 1) && lmb_regions_adjacent(rgn, i, i+1)) {
lmb_coalesce_regions(rgn, i, i+1);
coalesced++;
}
@@ -174,7 +162,7 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
return -1;
/* Couldn't coalesce the LMB, so add it to the sorted table. */
- for (i = rgn->cnt-1; i >= 0; i--) {
+ for (i = rgn->cnt - 1; i >= 0; i--) {
if (base < rgn->region[i].base) {
rgn->region[i+1].base = rgn->region[i].base;
rgn->region[i+1].size = rgn->region[i].size;
@@ -194,10 +182,9 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
return 0;
}
-/* This routine may be called with relocation disabled. */
long __init lmb_add(u64 base, u64 size)
{
- struct lmb_region *_rgn = &(lmb.memory);
+ struct lmb_region *_rgn = &lmb.memory;
/* On pSeries LPAR systems, the first LMB is our RMO region. */
if (base == 0)
@@ -209,24 +196,22 @@ long __init lmb_add(u64 base, u64 size)
long __init lmb_reserve(u64 base, u64 size)
{
- struct lmb_region *_rgn = &(lmb.reserved);
+ struct lmb_region *_rgn = &lmb.reserved;
BUG_ON(0 == size);
return lmb_add_region(_rgn, base, size);
}
-long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base,
- u64 size)
+long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size)
{
unsigned long i;
- for (i=0; i < rgn->cnt; i++) {
+ for (i = 0; i < rgn->cnt; i++) {
u64 rgnbase = rgn->region[i].base;
u64 rgnsize = rgn->region[i].size;
- if ( lmb_addrs_overlap(base,size,rgnbase,rgnsize) ) {
+ if (lmb_addrs_overlap(base, size, rgnbase, rgnsize))
break;
- }
}
return (i < rgn->cnt) ? i : -1;
@@ -337,7 +322,7 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
if (max_addr == LMB_ALLOC_ANYWHERE)
max_addr = LMB_REAL_LIMIT;
- for (i = lmb.memory.cnt-1; i >= 0; i--) {
+ for (i = lmb.memory.cnt - 1; i >= 0; i--) {
u64 lmbbase = lmb.memory.region[i].base;
u64 lmbsize = lmb.memory.region[i].size;
@@ -349,10 +334,13 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
} else
continue;
- while ((lmbbase <= base) &&
- ((j = lmb_overlaps_region(&lmb.reserved, base, size)) >= 0) )
+ while (lmbbase <= base) {
+ j = lmb_overlaps_region(&lmb.reserved, base, size);
+ if (j < 0)
+ break;
base = lmb_align_down(lmb.reserved.region[j].base - size,
align);
+ }
if ((base != 0) && (lmbbase <= base))
break;
@@ -387,7 +375,7 @@ void __init lmb_enforce_memory_limit(u64 memory_limit)
u64 limit;
struct lmb_property *p;
- if (! memory_limit)
+ if (!memory_limit)
return;
/* Truncate the lmb regions to satisfy the memory limit. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 19:08:35 +0000