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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/misc/sram.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/misc/sram.h')
-rw-r--r--drivers/misc/sram.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/misc/sram.h b/drivers/misc/sram.h
new file mode 100644
index 000000000..397205b8b
--- /dev/null
+++ b/drivers/misc/sram.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Defines for the SRAM driver
+ */
+#ifndef __SRAM_H
+#define __SRAM_H
+
+struct sram_config {
+ int (*init)(void);
+ bool map_only_reserved;
+};
+
+struct sram_partition {
+ void __iomem *base;
+
+ struct gen_pool *pool;
+ struct bin_attribute battr;
+ struct mutex lock;
+ struct list_head list;
+};
+
+struct sram_dev {
+ const struct sram_config *config;
+
+ struct device *dev;
+ void __iomem *virt_base;
+ bool no_memory_wc;
+
+ struct gen_pool *pool;
+
+ struct sram_partition *partition;
+ u32 partitions;
+};
+
+struct sram_reserve {
+ struct list_head list;
+ u32 start;
+ u32 size;
+ struct resource res;
+ bool export;
+ bool pool;
+ bool protect_exec;
+ const char *label;
+};
+
+#ifdef CONFIG_SRAM_EXEC
+int sram_check_protect_exec(struct sram_dev *sram, struct sram_reserve *block,
+ struct sram_partition *part);
+int sram_add_protect_exec(struct sram_partition *part);
+#else
+static inline int sram_check_protect_exec(struct sram_dev *sram,
+ struct sram_reserve *block,
+ struct sram_partition *part)
+{
+ return -ENODEV;
+}
+
+static inline int sram_add_protect_exec(struct sram_partition *part)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_SRAM_EXEC */
+#endif /* __SRAM_H */