BMC/Intel-BMC/linux.git/drivers/base/regmap/regcache-rbtree.c, branch dev-4.6

Merge remote-tracking branches 'regmap/topic/mmio', 'regmap/topic/rbtree' and 'regmap/topic/seq' into regmap-next

2016-01-05T19:07:18+00:00

regmap: replace kmalloc with kmalloc_array

2015-11-20T12:27:59+00:00

Replace kmalloc with specialized function kmalloc_array when the size is a multiplication of : number * size Signed-off-by: lixiubo Signed-off-by: Mark Brown

regmap: replace kzalloc with kcalloc

2015-11-20T12:27:57+00:00

Replace kzalloc with specialized function kcalloc when the size is a multiplication of : number * sizeof Signed-off-by: lixiubo Signed-off-by: Mark Brown

regmap: rbtree: When adding a reg do a bsearch for target node

2015-11-16T09:44:59+00:00

A binary search is much more efficient rather than iterating over the rbtree in ascending order which the current code is doing. During initialisation the reg defaults are written to the cache in a large chunk and these are always sorted in the ascending order so for this situation ideally we should have iterated the rbtree in descending order. But at runtime the drivers may write into the cache in any random order so this patch selects to use a bsearch to give an optimal runtime performance and also at initialisation time when reg defaults are written the performance of binary search would be much better than iterating in ascending order which the current code was doing. Signed-off-by: Nikesh Oswal Signed-off-by: Mark Brown

regmap: regcache-rbtree: Clean new present bits on present bitmap resize

2015-07-29T14:10:13+00:00

When inserting a new register into a block, the present bit map size is increased using krealloc. krealloc does not clear the additionally allocated memory, leaving it filled with random values. Result is that some registers are considered cached even though this is not the case. Fix the problem by clearing the additionally allocated memory. Also, if the bitmap size does not increase, do not reallocate the bitmap at all to reduce overhead. Fixes: 3f4ff561bc88 ("regmap: rbtree: Make cache_present bitmap per node") Signed-off-by: Guenter Roeck Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regmap: regcache-rbtree: Fix present bitmap resize

2015-03-07T16:17:33+00:00

When inserting a new register into a block at the lower end the present bitmap is currently shifted into the wrong direction. The effect of this is that the bitmap becomes corrupted and registers which are present might be reported as not present and vice versa. Fix this by shifting left rather than right. Fixes: 472fdec7380c("regmap: rbtree: Reduce number of nodes, take 2") Reported-by: Daniel Baluta Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regmap: cache: Sort include headers alphabetically

2014-10-20T11:25:06+00:00

If the inlcude headers aren't sorted alphabetically, then the logical choice is to append new ones, however that creates a lot of potential for conflicts or duplicates because every change will then add new includes in the same location. Signed-off-by: Xiubo Li Signed-off-by: Mark Brown

regmap: Fix regcache debugfs initialization

2014-08-26T08:11:56+00:00

Commit 6cfec04bcc05 ("regmap: Separate regmap dev initialization") moved the regmap debugfs initialization after regcache initialization. This means that the regmap debugfs directory is not created yet when the cache initialization runs and so any debugfs files registered by the regcache are created in the debugfs root directory rather than the debugfs directory of the regmap instance. Fix this by adding a separate callback for the regcache debugfs initialization which will be called after the parent debugfs entry has been created. Fixes: 6cfec04bcc05 (regmap: Separate regmap dev initialization) Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown Cc: stable@vger.kernel.org

regmap: rbtree: improve 64bits memory alignment

2014-04-14T15:59:48+00:00

Change regcache_rbtree_node strcuture fields order to align the pointers on 64bits architectures. Signed-off-by: Jean-Christophe PINCE Signed-off-by: David Cohen Signed-off-by: Mark Brown

Merge tag 'regmap-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

2013-09-03T17:07:40+00:00

Pull regmap updates from Mark Brown: "A quiet release for regmap, some cleanups, fixes and: - Improved node coalescing for rbtree, reducing memory usage and improving performance during syncs. - Support for registering multiple register patches. - A quirk for handling interrupts that need to be clear when masked in regmap-irq" * tag 'regmap-v3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: rbtree: Make cache_present bitmap per node regmap: rbtree: Reduce number of nodes, take 2 regmap: rbtree: Simplify adjacent node look-up regmap: debugfs: Fix continued read from registers file regcache-rbtree: Fix reg_stride != 1 regmap: Allow multiple patches to be registered regmap: regcache: allow read-only regs to be cached regmap: fix regcache_reg_present() for empty cache regmap: core: allow a virtual range to cover its own data window regmap: irq: document mask/wake_invert flags regmap: irq: make flags bool and put them in a bitfield regmap: irq: Allow to acknowledge masked interrupts during initialization regmap: Provide __acquires/__releases annotations