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lib: lmb: cleanup var names and patman warnings

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Change multiple usages of 'j' into 'rgn'; fix whitespace/coding style
reported by patman.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
This commit is contained in:
Simon Goldschmidt 2019-01-21 20:29:56 +01:00 • committed by Tom Rini
parent 65304aade8
commit e35d2a7553
1 changed files with 42 additions and 44 deletions
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86
lib/lmb.c
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@ -20,28 +20,28 @@ void lmb_dump_all(struct lmb *lmb)
debug(" memory.cnt = 0x%lx\n", lmb->memory.cnt); debug(" memory.cnt = 0x%lx\n", lmb->memory.cnt);
debug(" memory.size = 0x%llx\n", debug(" memory.size = 0x%llx\n",
(unsigned long long)lmb->memory.size); (unsigned long long)lmb->memory.size);
for (i=0; i < lmb->memory.cnt ;i++) { for (i = 0; i < lmb->memory.cnt; i++) {
debug(" memory.reg[0x%lx].base = 0x%llx\n", i, debug(" memory.reg[0x%lx].base = 0x%llx\n", i,
(long long unsigned)lmb->memory.region[i].base); (unsigned long long)lmb->memory.region[i].base);
debug(" .size = 0x%llx\n", debug(" .size = 0x%llx\n",
(long long unsigned)lmb->memory.region[i].size); (unsigned long long)lmb->memory.region[i].size);
} }
debug("\n reserved.cnt = 0x%lx\n", debug("\n reserved.cnt = 0x%lx\n",
lmb->reserved.cnt); lmb->reserved.cnt);
debug(" reserved.size = 0x%llx\n", debug(" reserved.size = 0x%llx\n",
(long long unsigned)lmb->reserved.size); (unsigned long long)lmb->reserved.size);
for (i=0; i < lmb->reserved.cnt ;i++) { for (i = 0; i < lmb->reserved.cnt; i++) {
debug(" reserved.reg[0x%lx].base = 0x%llx\n", i, debug(" reserved.reg[0x%lx].base = 0x%llx\n", i,
(long long unsigned)lmb->reserved.region[i].base); (unsigned long long)lmb->reserved.region[i].base);
debug(" .size = 0x%llx\n", debug(" .size = 0x%llx\n",
(long long unsigned)lmb->reserved.region[i].size); (unsigned long long)lmb->reserved.region[i].size);
} }
#endif /* DEBUG */ #endif /* DEBUG */
} }
static long lmb_addrs_overlap(phys_addr_t base1, static long lmb_addrs_overlap(phys_addr_t base1, phys_size_t size1,
phys_size_t size1, phys_addr_t base2, phys_size_t size2) phys_addr_t base2, phys_size_t size2)
{ {
const phys_addr_t base1_end = base1 + size1 - 1; const phys_addr_t base1_end = base1 + size1 - 1;
const phys_addr_t base2_end = base2 + size2 - 1; const phys_addr_t base2_end = base2 + size2 - 1;
@ -50,7 +50,7 @@ static long lmb_addrs_overlap(phys_addr_t base1,
} }
static long lmb_addrs_adjacent(phys_addr_t base1, phys_size_t size1, static long lmb_addrs_adjacent(phys_addr_t base1, phys_size_t size1,
phys_addr_t base2, phys_size_t size2) phys_addr_t base2, phys_size_t size2)
{ {
if (base2 == base1 + size1) if (base2 == base1 + size1)
return 1; return 1;
@ -60,8 +60,8 @@ static long lmb_addrs_adjacent(phys_addr_t base1, phys_size_t size1,
return 0; return 0;
} }
static long lmb_regions_adjacent(struct lmb_region *rgn, static long lmb_regions_adjacent(struct lmb_region *rgn, unsigned long r1,
unsigned long r1, unsigned long r2) unsigned long r2)
{ {
phys_addr_t base1 = rgn->region[r1].base; phys_addr_t base1 = rgn->region[r1].base;
phys_size_t size1 = rgn->region[r1].size; phys_size_t size1 = rgn->region[r1].size;
@ -83,8 +83,8 @@ static void lmb_remove_region(struct lmb_region *rgn, unsigned long r)
} }
/* Assumption: base addr of region 1 < base addr of region 2 */ /* Assumption: base addr of region 1 < base addr of region 2 */
static void lmb_coalesce_regions(struct lmb_region *rgn, static void lmb_coalesce_regions(struct lmb_region *rgn, unsigned long r1,
unsigned long r1, unsigned long r2) unsigned long r2)
{ {
rgn->region[r1].size += rgn->region[r2].size; rgn->region[r1].size += rgn->region[r2].size;
lmb_remove_region(rgn, r2); lmb_remove_region(rgn, r2);
@ -125,7 +125,7 @@ static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t
} }
/* First try and coalesce this LMB with another. */ /* First try and coalesce this LMB with another. */
for (i=0; i < rgn->cnt; i++) { for (i = 0; i < rgn->cnt; i++) {
phys_addr_t rgnbase = rgn->region[i].base; phys_addr_t rgnbase = rgn->region[i].base;
phys_size_t rgnsize = rgn->region[i].size; phys_size_t rgnsize = rgn->region[i].size;
@ -133,14 +133,13 @@ static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t
/* Already have this region, so we're done */ /* Already have this region, so we're done */
return 0; return 0;
adjacent = lmb_addrs_adjacent(base,size,rgnbase,rgnsize); adjacent = lmb_addrs_adjacent(base, size, rgnbase, rgnsize);
if ( adjacent > 0 ) { if (adjacent > 0) {
rgn->region[i].base -= size; rgn->region[i].base -= size;
rgn->region[i].size += size; rgn->region[i].size += size;
coalesced++; coalesced++;
break; break;
} } else if (adjacent < 0) {
else if ( adjacent < 0 ) {
rgn->region[i].size += size; rgn->region[i].size += size;
coalesced++; coalesced++;
break; break;
@ -150,8 +149,8 @@ static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t
} }
} }
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); lmb_coalesce_regions(rgn, i, i + 1);
coalesced++; coalesced++;
} }
@ -163,11 +162,11 @@ static long lmb_add_region(struct lmb_region *rgn, phys_addr_t base, phys_size_t
/* Couldn't coalesce the LMB, so add it to the sorted table. */ /* 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) { if (base < rgn->region[i].base) {
rgn->region[i+1].base = rgn->region[i].base; rgn->region[i + 1].base = rgn->region[i].base;
rgn->region[i+1].size = rgn->region[i].size; rgn->region[i + 1].size = rgn->region[i].size;
} else { } else {
rgn->region[i+1].base = base; rgn->region[i + 1].base = base;
rgn->region[i+1].size = size; rgn->region[i + 1].size = size;
break; break;
} }
} }
@ -200,7 +199,7 @@ long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size)
rgnbegin = rgnend = 0; /* supress gcc warnings */ rgnbegin = rgnend = 0; /* supress gcc warnings */
/* Find the region where (base, size) belongs to */ /* Find the region where (base, size) belongs to */
for (i=0; i < rgn->cnt; i++) { for (i = 0; i < rgn->cnt; i++) {
rgnbegin = rgn->region[i].base; rgnbegin = rgn->region[i].base;
rgnend = rgnbegin + rgn->region[i].size - 1; rgnend = rgnbegin + rgn->region[i].size - 1;
@ -251,12 +250,11 @@ static long lmb_overlaps_region(struct lmb_region *rgn, phys_addr_t base,
{ {
unsigned long i; unsigned long i;
for (i=0; i < rgn->cnt; i++) { for (i = 0; i < rgn->cnt; i++) {
phys_addr_t rgnbase = rgn->region[i].base; phys_addr_t rgnbase = rgn->region[i].base;
phys_size_t rgnsize = rgn->region[i].size; phys_size_t rgnsize = rgn->region[i].size;
if ( lmb_addrs_overlap(base,size,rgnbase,rgnsize) ) { if (lmb_addrs_overlap(base, size, rgnbase, rgnsize))
break; break;
}
} }
return (i < rgn->cnt) ? i : -1; return (i < rgn->cnt) ? i : -1;
@ -275,7 +273,7 @@ phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_
if (alloc == 0) if (alloc == 0)
printf("ERROR: Failed to allocate 0x%lx bytes below 0x%lx.\n", printf("ERROR: Failed to allocate 0x%lx bytes below 0x%lx.\n",
(ulong)size, (ulong)max_addr); (ulong)size, (ulong)max_addr);
return alloc; return alloc;
} }
@ -287,11 +285,11 @@ static phys_addr_t lmb_align_down(phys_addr_t addr, phys_size_t size)
phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr) phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phys_addr_t max_addr)
{ {
long i, j; long i, rgn;
phys_addr_t base = 0; phys_addr_t base = 0;
phys_addr_t res_base; phys_addr_t res_base;
for (i = lmb->memory.cnt-1; i >= 0; i--) { for (i = lmb->memory.cnt - 1; i >= 0; i--) {
phys_addr_t lmbbase = lmb->memory.region[i].base; phys_addr_t lmbbase = lmb->memory.region[i].base;
phys_size_t lmbsize = lmb->memory.region[i].size; phys_size_t lmbsize = lmb->memory.region[i].size;
@ -309,15 +307,15 @@ phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phy
continue; continue;
while (base && lmbbase <= base) { while (base && lmbbase <= base) {
j = lmb_overlaps_region(&lmb->reserved, base, size); rgn = lmb_overlaps_region(&lmb->reserved, base, size);
if (j < 0) { if (rgn < 0) {
/* This area isn't reserved, take it */ /* This area isn't reserved, take it */
if (lmb_add_region(&lmb->reserved, base, if (lmb_add_region(&lmb->reserved, base,
size) < 0) size) < 0)
return 0; return 0;
return base; return base;
} }
res_base = lmb->reserved.region[j].base; res_base = lmb->reserved.region[rgn].base;
if (res_base < size) if (res_base < size)
break; break;
base = lmb_align_down(res_base - size, align); base = lmb_align_down(res_base - size, align);
@ -332,18 +330,18 @@ phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align, phy
*/ */
phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base, phys_size_t size) phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base, phys_size_t size)
{ {
long j; long rgn;
/* Check if the requested address is in one of the memory regions */ /* Check if the requested address is in one of the memory regions */
j = lmb_overlaps_region(&lmb->memory, base, size); rgn = lmb_overlaps_region(&lmb->memory, base, size);
if (j >= 0) { if (rgn >= 0) {
/* /*
* Check if the requested end address is in the same memory * Check if the requested end address is in the same memory
* region we found. * region we found.
*/ */
if (lmb_addrs_overlap(lmb->memory.region[j].base, if (lmb_addrs_overlap(lmb->memory.region[rgn].base,
lmb->memory.region[j].size, base + size - lmb->memory.region[rgn].size,
1, 1)) { base + size - 1, 1)) {
/* ok, reserve the memory */ /* ok, reserve the memory */
if (lmb_reserve(lmb, base, size) >= 0) if (lmb_reserve(lmb, base, size) >= 0)
return base; return base;
@ -356,11 +354,11 @@ phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base, phys_size_t size)
phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr) phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr)
{ {
int i; int i;
long j; long rgn;
/* check if the requested address is in the memory regions */ /* check if the requested address is in the memory regions */
j = lmb_overlaps_region(&lmb->memory, addr, 1); rgn = lmb_overlaps_region(&lmb->memory, addr, 1);
if (j >= 0) { if (rgn >= 0) {
for (i = 0; i < lmb->reserved.cnt; i++) { for (i = 0; i < lmb->reserved.cnt; i++) {
if (addr < lmb->reserved.region[i].base) { if (addr < lmb->reserved.region[i].base) {
/* first reserved range > requested address */ /* first reserved range > requested address */