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Diffstat (limited to 'src/warm.h')
| -rw-r--r-- | src/warm.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/warm.h b/src/warm.h new file mode 100644 index 0000000..a3fdd6b --- /dev/null +++ b/src/warm.h @@ -0,0 +1,100 @@ +/* + * wARM - exporting ARM processor specific privileged services to userspace + * library functions + * + * Copyright (c) GraÅžvydas "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__ */ |