move warm too

[gpsp.git] / arm / warm.h

diff --git a/arm/warm.h b/arm/warm.h
new file mode 100644 (file)
index 0000000..a3fdd6b
--- /dev/null
+++ b/arm/warm.h
@@ -0,0 +1,100 @@
+/*
+ * wARM - exporting ARM processor specific privileged services to userspace
+ * library functions
+ *
+ * Copyright (c) Gražvydas "notaz" Ignotas, 2009
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the organization nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __WARM_H__
+#define __WARM_H__ 1
+
+/* cache operations (warm_cache_op_*):
+ * o clean - write dirty data to memory, but also leave in cache.
+ * o invalidate - throw away everything in cache, losing dirty data.
+ *
+ * Write buffer is always drained, no ops will only drain WB
+ */
+#define WOP_D_CLEAN            (1 << 0)
+#define WOP_D_INVALIDATE       (1 << 1)
+#define WOP_I_INVALIDATE       (1 << 2)
+
+/* change C and B bits (warm_change_cb_*)
+ * if is_set in not zero, bits are set, else cleared.
+ * the address for range function is virtual address.
+ */
+#define WCB_C_BIT              (1 << 0)
+#define WCB_B_BIT              (1 << 1)
+
+#ifndef __ASSEMBLER__
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+int warm_init(void);
+
+int warm_cache_op_range(int ops, void *virt_addr, unsigned long size);
+int warm_cache_op_all(int ops);
+
+int warm_change_cb_upper(int cb, int is_set);
+int warm_change_cb_range(int cb, int is_set, void *virt_addr, unsigned long size);
+
+unsigned long warm_virt2phys(const void *ptr);
+
+void warm_finish(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+/* internal */
+#ifdef WARM_CODE
+
+#include <linux/ioctl.h>
+
+#define WARM_IOCTL_BASE 'A'
+
+struct warm_cache_op
+{
+       unsigned long addr;
+       unsigned long size;
+       int ops;
+};
+
+struct warm_change_cb
+{
+       unsigned long addr;
+       unsigned long size;
+       int cb;
+       int is_set;
+};
+
+#define WARMC_CACHE_OP _IOW(WARM_IOCTL_BASE,  0, struct warm_cache_op)
+#define WARMC_CHANGE_CB        _IOW(WARM_IOCTL_BASE,  1, struct warm_change_cb)
+#define WARMC_VIRT2PHYS        _IOWR(WARM_IOCTL_BASE, 2, unsigned long)
+
+#endif /* WARM_CODE */
+#endif /* !__ASSEMBLER__ */
+#endif /* __WARM_H__ */