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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Numascale NumaConnect-Specific Header file
*
* Copyright (C) 2011 Numascale AS. All rights reserved.
*
* Send feedback to <support@numascale.com>
*
*/
#ifndef _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
#define _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
#include <linux/io.h>
#define CSR_NODE_SHIFT 16
#define CSR_NODE_BITS(p) (((unsigned long)(p)) << CSR_NODE_SHIFT)
#define CSR_NODE_MASK 0x0fff /* 4K nodes */
/* 32K CSR space, b15 indicates geo/non-geo */
#define CSR_OFFSET_MASK 0x7fffUL
#define CSR_G0_NODE_IDS (0x008 + (0 << 12))
#define CSR_G3_EXT_IRQ_GEN (0x030 + (3 << 12))
/*
* Local CSR space starts in global CSR space with "nodeid" = 0xfff0, however
* when using the direct mapping on x86_64, both start and size needs to be
* aligned with PMD_SIZE which is 2M
*/
#define NUMACHIP_LCSR_BASE 0x3ffffe000000ULL
#define NUMACHIP_LCSR_LIM 0x3fffffffffffULL
#define NUMACHIP_LCSR_SIZE (NUMACHIP_LCSR_LIM - NUMACHIP_LCSR_BASE + 1)
static inline void *lcsr_address(unsigned long offset)
{
return __va(NUMACHIP_LCSR_BASE | (1UL << 15) |
CSR_NODE_BITS(0xfff0) | (offset & CSR_OFFSET_MASK));
}
static inline unsigned int read_lcsr(unsigned long offset)
{
return swab32(readl(lcsr_address(offset)));
}
static inline void write_lcsr(unsigned long offset, unsigned int val)
{
writel(swab32(val), lcsr_address(offset));
}
#endif /* _ASM_X86_NUMACHIP_NUMACHIP_CSR_H */
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