mirror of
https://github.com/torvalds/linux.git
synced 2024-12-19 17:41:29 +00:00
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
|
/*
|
||
|
|
* imr.h: Isolated Memory Region API
|
||
|
|
*
|
||
|
|
* Copyright(c) 2013 Intel Corporation.
|
||
|
|
* Copyright(c) 2015 Bryan O'Donoghue <pure.logic@nexus-software.ie>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; version 2
|
||
|
|
* of the License.
|
||
|
|
*/
|
||
|
|
#ifndef _IMR_H
|
||
|
|
#define _IMR_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* IMR agent access mask bits
|
||
|
|
* See section 12.7.4.7 from quark-x1000-datasheet.pdf for register
|
||
|
|
* definitions.
|
||
|
|
*/
|
||
|
|
#define IMR_ESRAM_FLUSH BIT(31)
|
||
|
|
#define IMR_CPU_SNOOP BIT(30) /* Applicable only to write */
|
||
|
|
#define IMR_RMU BIT(29)
|
||
|
|
#define IMR_VC1_SAI_ID3 BIT(15)
|
||
|
|
#define IMR_VC1_SAI_ID2 BIT(14)
|
||
|
|
#define IMR_VC1_SAI_ID1 BIT(13)
|
||
|
|
#define IMR_VC1_SAI_ID0 BIT(12)
|
||
|
|
#define IMR_VC0_SAI_ID3 BIT(11)
|
||
|
|
#define IMR_VC0_SAI_ID2 BIT(10)
|
||
|
|
#define IMR_VC0_SAI_ID1 BIT(9)
|
||
|
|
#define IMR_VC0_SAI_ID0 BIT(8)
|
||
|
|
#define IMR_CPU_0 BIT(1) /* SMM mode */
|
||
|
|
#define IMR_CPU BIT(0) /* Non SMM mode */
|
||
|
|
#define IMR_ACCESS_NONE 0
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Read/Write access-all bits here include some reserved bits
|
||
|
|
* These are the values firmware uses and are accepted by hardware.
|
||
|
|
* The kernel defines read/write access-all in the same way as firmware
|
||
|
|
* in order to have a consistent and crisp definition across firmware,
|
||
|
|
* bootloader and kernel.
|
||
|
|
*/
|
||
|
|
#define IMR_READ_ACCESS_ALL 0xBFFFFFFF
|
||
|
|
#define IMR_WRITE_ACCESS_ALL 0xFFFFFFFF
|
||
|
|
|
||
|
|
/* Number of IMRs provided by Quark X1000 SoC */
|
||
|
|
#define QUARK_X1000_IMR_MAX 0x08
|
||
|
|
#define QUARK_X1000_IMR_REGBASE 0x40
|
||
|
|
|
||
|
|
/* IMR alignment bits - only bits 31:10 are checked for IMR validity */
|
||
|
|
#define IMR_ALIGN 0x400
|
||
|
|
#define IMR_MASK (IMR_ALIGN - 1)
|
||
|
|
|
||
|
|
int imr_add_range(phys_addr_t base, size_t size,
|
||
|
|
unsigned int rmask, unsigned int wmask, bool lock);
|
||
|
|
|
||
|
|
int imr_remove_range(phys_addr_t base, size_t size);
|
||
|
|
|
||
|
|
#endif /* _IMR_H */
|