.. | .. |
---|
1 | | -/* |
---|
2 | | - * Register cache access API - rbtree caching support |
---|
3 | | - * |
---|
4 | | - * Copyright 2011 Wolfson Microelectronics plc |
---|
5 | | - * |
---|
6 | | - * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> |
---|
7 | | - * |
---|
8 | | - * This program is free software; you can redistribute it and/or modify |
---|
9 | | - * it under the terms of the GNU General Public License version 2 as |
---|
10 | | - * published by the Free Software Foundation. |
---|
11 | | - */ |
---|
| 1 | +// SPDX-License-Identifier: GPL-2.0 |
---|
| 2 | +// |
---|
| 3 | +// Register cache access API - rbtree caching support |
---|
| 4 | +// |
---|
| 5 | +// Copyright 2011 Wolfson Microelectronics plc |
---|
| 6 | +// |
---|
| 7 | +// Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> |
---|
12 | 8 | |
---|
13 | 9 | #include <linux/debugfs.h> |
---|
14 | 10 | #include <linux/device.h> |
---|
.. | .. |
---|
33 | 29 | unsigned int blklen; |
---|
34 | 30 | /* the actual rbtree node holding this block */ |
---|
35 | 31 | struct rb_node node; |
---|
36 | | -} __attribute__ ((packed)); |
---|
| 32 | +}; |
---|
37 | 33 | |
---|
38 | 34 | struct regcache_rbtree_ctx { |
---|
39 | 35 | struct rb_root root; |
---|
.. | .. |
---|
177 | 173 | return 0; |
---|
178 | 174 | } |
---|
179 | 175 | |
---|
180 | | -static int rbtree_open(struct inode *inode, struct file *file) |
---|
181 | | -{ |
---|
182 | | - return single_open(file, rbtree_show, inode->i_private); |
---|
183 | | -} |
---|
184 | | - |
---|
185 | | -static const struct file_operations rbtree_fops = { |
---|
186 | | - .open = rbtree_open, |
---|
187 | | - .read = seq_read, |
---|
188 | | - .llseek = seq_lseek, |
---|
189 | | - .release = single_release, |
---|
190 | | -}; |
---|
| 176 | +DEFINE_SHOW_ATTRIBUTE(rbtree); |
---|
191 | 177 | |
---|
192 | 178 | static void rbtree_debugfs_init(struct regmap *map) |
---|
193 | 179 | { |
---|
.. | .. |
---|
291 | 277 | |
---|
292 | 278 | blk = krealloc(rbnode->block, |
---|
293 | 279 | blklen * map->cache_word_size, |
---|
294 | | - GFP_KERNEL); |
---|
| 280 | + map->alloc_flags); |
---|
295 | 281 | if (!blk) |
---|
296 | 282 | return -ENOMEM; |
---|
297 | 283 | |
---|
.. | .. |
---|
300 | 286 | if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) { |
---|
301 | 287 | present = krealloc(rbnode->cache_present, |
---|
302 | 288 | BITS_TO_LONGS(blklen) * sizeof(*present), |
---|
303 | | - GFP_KERNEL); |
---|
| 289 | + map->alloc_flags); |
---|
304 | 290 | if (!present) |
---|
305 | 291 | return -ENOMEM; |
---|
306 | 292 | |
---|
.. | .. |
---|
334 | 320 | const struct regmap_range *range; |
---|
335 | 321 | int i; |
---|
336 | 322 | |
---|
337 | | - rbnode = kzalloc(sizeof(*rbnode), GFP_KERNEL); |
---|
| 323 | + rbnode = kzalloc(sizeof(*rbnode), map->alloc_flags); |
---|
338 | 324 | if (!rbnode) |
---|
339 | 325 | return NULL; |
---|
340 | 326 | |
---|
.. | .. |
---|
360 | 346 | } |
---|
361 | 347 | |
---|
362 | 348 | rbnode->block = kmalloc_array(rbnode->blklen, map->cache_word_size, |
---|
363 | | - GFP_KERNEL); |
---|
| 349 | + map->alloc_flags); |
---|
364 | 350 | if (!rbnode->block) |
---|
365 | 351 | goto err_free; |
---|
366 | 352 | |
---|
367 | 353 | rbnode->cache_present = kcalloc(BITS_TO_LONGS(rbnode->blklen), |
---|
368 | 354 | sizeof(*rbnode->cache_present), |
---|
369 | | - GFP_KERNEL); |
---|
| 355 | + map->alloc_flags); |
---|
370 | 356 | if (!rbnode->cache_present) |
---|
371 | 357 | goto err_free_block; |
---|
372 | 358 | |
---|
.. | .. |
---|
467 | 453 | if (!rbnode) |
---|
468 | 454 | return -ENOMEM; |
---|
469 | 455 | regcache_rbtree_set_register(map, rbnode, |
---|
470 | | - reg - rbnode->base_reg, value); |
---|
| 456 | + (reg - rbnode->base_reg) / map->reg_stride, |
---|
| 457 | + value); |
---|
471 | 458 | regcache_rbtree_insert(map, &rbtree_ctx->root, rbnode); |
---|
472 | 459 | rbtree_ctx->cached_rbnode = rbnode; |
---|
473 | 460 | } |
---|