*top = rbnode->base_reg + ((rbnode->blklen - 1) * map->reg_stride);
}
-static unsigned int regcache_rbtree_get_register(
- struct regcache_rbtree_node *rbnode, unsigned int idx,
- unsigned int word_size)
+static unsigned int regcache_rbtree_get_register(struct regmap *map,
+ struct regcache_rbtree_node *rbnode, unsigned int idx)
{
- return regcache_get_val(rbnode->block, idx, word_size);
+ return regcache_get_val(map, rbnode->block, idx);
}
-static void regcache_rbtree_set_register(struct regcache_rbtree_node *rbnode,
- unsigned int idx, unsigned int val,
- unsigned int word_size)
+static const void *regcache_rbtree_get_reg_addr(struct regmap *map,
+ struct regcache_rbtree_node *rbnode, unsigned int idx)
{
- regcache_set_val(rbnode->block, idx, val, word_size);
+ return regcache_get_val_addr(map, rbnode->block, idx);
+}
+
+static void regcache_rbtree_set_register(struct regmap *map,
+ struct regcache_rbtree_node *rbnode,
+ unsigned int idx, unsigned int val)
+{
+ regcache_set_val(map, rbnode->block, idx, val);
}
static struct regcache_rbtree_node *regcache_rbtree_lookup(struct regmap *map,
- unsigned int reg)
+ unsigned int reg)
{
struct regcache_rbtree_ctx *rbtree_ctx = map->cache;
struct rb_node *node;
struct regcache_rbtree_node *n;
struct rb_node *node;
unsigned int base, top;
+ size_t mem_size;
int nodes = 0;
int registers = 0;
int this_registers, average;
map->lock(map);
+ mem_size = sizeof(*rbtree_ctx);
+ mem_size += BITS_TO_LONGS(map->cache_present_nbits) * sizeof(long);
+
for (node = rb_first(&rbtree_ctx->root); node != NULL;
node = rb_next(node)) {
n = container_of(node, struct regcache_rbtree_node, node);
+ mem_size += sizeof(*n);
+ mem_size += (n->blklen * map->cache_word_size);
regcache_rbtree_get_base_top_reg(map, n, &base, &top);
this_registers = ((top - base) / map->reg_stride) + 1;
else
average = 0;
- seq_printf(s, "%d nodes, %d registers, average %d registers\n",
- nodes, registers, average);
+ seq_printf(s, "%d nodes, %d registers, average %d registers, used %zu bytes\n",
+ nodes, registers, average, mem_size);
map->unlock(map);
rbnode = regcache_rbtree_lookup(map, reg);
if (rbnode) {
reg_tmp = (reg - rbnode->base_reg) / map->reg_stride;
- *value = regcache_rbtree_get_register(rbnode, reg_tmp,
- map->cache_word_size);
+ if (!regcache_reg_present(map, reg))
+ return -ENOENT;
+ *value = regcache_rbtree_get_register(map, rbnode, reg_tmp);
} else {
return -ENOENT;
}
}
-static int regcache_rbtree_insert_to_block(struct regcache_rbtree_node *rbnode,
+static int regcache_rbtree_insert_to_block(struct regmap *map,
+ struct regcache_rbtree_node *rbnode,
unsigned int pos, unsigned int reg,
- unsigned int value, unsigned int word_size)
+ unsigned int value)
{
u8 *blk;
blk = krealloc(rbnode->block,
- (rbnode->blklen + 1) * word_size, GFP_KERNEL);
+ (rbnode->blklen + 1) * map->cache_word_size,
+ GFP_KERNEL);
if (!blk)
return -ENOMEM;
/* insert the register value in the correct place in the rbnode block */
- memmove(blk + (pos + 1) * word_size,
- blk + pos * word_size,
- (rbnode->blklen - pos) * word_size);
+ memmove(blk + (pos + 1) * map->cache_word_size,
+ blk + pos * map->cache_word_size,
+ (rbnode->blklen - pos) * map->cache_word_size);
/* update the rbnode block, its size and the base register */
rbnode->block = blk;
if (!pos)
rbnode->base_reg = reg;
- regcache_rbtree_set_register(rbnode, pos, value, word_size);
+ regcache_rbtree_set_register(map, rbnode, pos, value);
return 0;
}
struct regcache_rbtree_ctx *rbtree_ctx;
struct regcache_rbtree_node *rbnode, *rbnode_tmp;
struct rb_node *node;
- unsigned int val;
unsigned int reg_tmp;
unsigned int pos;
int i;
int ret;
rbtree_ctx = map->cache;
+ /* update the reg_present bitmap, make space if necessary */
+ ret = regcache_set_reg_present(map, reg);
+ if (ret < 0)
+ return ret;
+
/* if we can't locate it in the cached rbnode we'll have
* to traverse the rbtree looking for it.
*/
rbnode = regcache_rbtree_lookup(map, reg);
if (rbnode) {
reg_tmp = (reg - rbnode->base_reg) / map->reg_stride;
- val = regcache_rbtree_get_register(rbnode, reg_tmp,
- map->cache_word_size);
- if (val == value)
- return 0;
- regcache_rbtree_set_register(rbnode, reg_tmp, value,
- map->cache_word_size);
+ regcache_rbtree_set_register(map, rbnode, reg_tmp, value);
} else {
/* look for an adjacent register to the one we are about to add */
for (node = rb_first(&rbtree_ctx->root); node;
pos = i + 1;
else
pos = i;
- ret = regcache_rbtree_insert_to_block(rbnode_tmp, pos,
- reg, value,
- map->cache_word_size);
+ ret = regcache_rbtree_insert_to_block(map,
+ rbnode_tmp,
+ pos, reg,
+ value);
if (ret)
return ret;
rbtree_ctx->cached_rbnode = rbnode_tmp;
rbnode = kzalloc(sizeof *rbnode, GFP_KERNEL);
if (!rbnode)
return -ENOMEM;
- rbnode->blklen = 1;
+ rbnode->blklen = sizeof(*rbnode);
rbnode->base_reg = reg;
rbnode->block = kmalloc(rbnode->blklen * map->cache_word_size,
GFP_KERNEL);
kfree(rbnode);
return -ENOMEM;
}
- regcache_rbtree_set_register(rbnode, 0, value, map->cache_word_size);
+ regcache_rbtree_set_register(map, rbnode, 0, value);
regcache_rbtree_insert(map, &rbtree_ctx->root, rbnode);
rbtree_ctx->cached_rbnode = rbnode;
}
struct regcache_rbtree_node *rbnode;
unsigned int regtmp;
unsigned int val;
+ const void *addr;
int ret;
int i, base, end;
for (i = base; i < end; i++) {
regtmp = rbnode->base_reg + (i * map->reg_stride);
- val = regcache_rbtree_get_register(rbnode, i,
- map->cache_word_size);
+
+ if (!regcache_reg_present(map, regtmp))
+ continue;
+
+ val = regcache_rbtree_get_register(map, rbnode, i);
/* Is this the hardware default? If so skip. */
ret = regcache_lookup_reg(map, regtmp);
continue;
map->cache_bypass = 1;
- ret = _regmap_write(map, regtmp, val);
+
+ if (regmap_can_raw_write(map)) {
+ addr = regcache_rbtree_get_reg_addr(map,
+ rbnode, i);
+ ret = _regmap_raw_write(map, regtmp, addr,
+ map->format.val_bytes,
+ false);
+ } else {
+ ret = _regmap_write(map, regtmp, val);
+ }
+
map->cache_bypass = 0;
if (ret)
return ret;
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