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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 14:38:22 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 14:38:22 -0500
commite30aee9e10bb5168579e047f05c3d13d09e23356 (patch)
tree12371bdcd52d2427cad838201997479e31b6a9c9 /drivers/misc/sram.h
parent8ff546b801e5cca0337c0f0a7234795d0a6309a1 (diff)
parent6cf18e6927c0b224f972e3042fb85770d63cb9f8 (diff)
Merge tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patchset for 4.11-rc1. Lots of different driver subsystems updated here: rework for the hyperv subsystem to handle new platforms better, mei and w1 and extcon driver updates, as well as a number of other "minor" driver updates. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits) goldfish: Sanitize the broken interrupt handler x86/platform/goldfish: Prevent unconditional loading vmbus: replace modulus operation with subtraction vmbus: constify parameters where possible vmbus: expose hv_begin/end_read vmbus: remove conditional locking of vmbus_write vmbus: add direct isr callback mode vmbus: change to per channel tasklet vmbus: put related per-cpu variable together vmbus: callback is in softirq not workqueue binder: Add support for file-descriptor arrays binder: Add support for scatter-gather binder: Add extra size to allocator binder: Refactor binder_transact() binder: Support multiple /dev instances binder: Deal with contexts in debugfs binder: Support multiple context managers binder: Split flat_binder_object auxdisplay: ht16k33: remove private workqueue auxdisplay: ht16k33: rework input device initialization ...
Diffstat (limited to 'drivers/misc/sram.h')
-rw-r--r--drivers/misc/sram.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/misc/sram.h b/drivers/misc/sram.h
new file mode 100644
index 000000000000..c181ce4c8fca
--- /dev/null
+++ b/drivers/misc/sram.h
@@ -0,0 +1,58 @@
1/*
2 * Defines for the SRAM driver
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8#ifndef __SRAM_H
9#define __SRAM_H
10
11struct sram_partition {
12 void __iomem *base;
13
14 struct gen_pool *pool;
15 struct bin_attribute battr;
16 struct mutex lock;
17 struct list_head list;
18};
19
20struct sram_dev {
21 struct device *dev;
22 void __iomem *virt_base;
23
24 struct gen_pool *pool;
25 struct clk *clk;
26
27 struct sram_partition *partition;
28 u32 partitions;
29};
30
31struct sram_reserve {
32 struct list_head list;
33 u32 start;
34 u32 size;
35 bool export;
36 bool pool;
37 bool protect_exec;
38 const char *label;
39};
40
41#ifdef CONFIG_SRAM_EXEC
42int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block,
43 struct sram_partition *part);
44int sram_add_protect_exec(struct sram_partition *part);
45#else
46static inline int sram_check_protect_exec(struct sram_dev *sram,
47 struct sram_reserve *block,
48 struct sram_partition *part)
49{
50 return -ENODEV;
51}
52
53static inline int sram_add_protect_exec(struct sram_partition *part)
54{
55 return -ENODEV;
56}
57#endif /* CONFIG_SRAM_EXEC */
58#endif /* __SRAM_H */