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-rw-r--r--arch/mips/include/asm/sn/addrs.h377
1 files changed, 377 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sn/addrs.h b/arch/mips/include/asm/sn/addrs.h
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index 000000000..837d23e24
--- /dev/null
+++ b/arch/mips/include/asm/sn/addrs.h
@@ -0,0 +1,377 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 1999, 2000 by Ralf Baechle
+ */
+#ifndef _ASM_SN_ADDRS_H
+#define _ASM_SN_ADDRS_H
+
+
+#ifndef __ASSEMBLY__
+#include <linux/smp.h>
+#include <linux/types.h>
+#endif /* !__ASSEMBLY__ */
+
+#include <asm/addrspace.h>
+#include <asm/sn/kldir.h>
+
+#if defined(CONFIG_SGI_IP27)
+#include <asm/sn/sn0/addrs.h>
+#elif defined(CONFIG_SGI_IP35)
+#include <asm/sn/sn1/addrs.h>
+#endif
+
+
+#ifndef __ASSEMBLY__
+
+#define UINT64_CAST (unsigned long)
+
+#else /* __ASSEMBLY__ */
+
+#define UINT64_CAST
+
+#endif /* __ASSEMBLY__ */
+
+
+#define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
+#ifdef CONFIG_SGI_IP27
+#define NASID_GET_LOCAL(_n) ((_n) & 0xf)
+#endif
+#define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
+
+#define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
+#define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
+
+#define CHANGE_ADDR_NASID(_pa, _nasid) \
+ ((UINT64_CAST(_pa) & ~NASID_MASK) | \
+ (UINT64_CAST(_nasid) << NASID_SHFT))
+
+
+/*
+ * The following macros are used to index to the beginning of a specific
+ * node's address space.
+ */
+
+#define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
+
+#define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
+#define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
+#define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
+#define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
+#define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
+
+#define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
+#define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
+#define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
+#define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
+#define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
+
+
+#define RAW_NODE_SWIN_BASE(nasid, widget) \
+ (NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
+
+#define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
+
+/*
+ * The following definitions pertain to the IO special address
+ * space. They define the location of the big and little windows
+ * of any given node.
+ */
+
+#define SWIN_SIZE_BITS 24
+#define SWIN_SIZE (UINT64_CAST 1 << 24)
+#define SWIN_SIZEMASK (SWIN_SIZE - 1)
+#define SWIN_WIDGET_MASK 0xF
+
+/*
+ * Convert smallwindow address to xtalk address.
+ *
+ * 'addr' can be physical or virtual address, but will be converted
+ * to Xtalk address in the range 0 -> SWINZ_SIZEMASK
+ */
+#define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
+#define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
+/*
+ * Verify if addr belongs to small window address on node with "nasid"
+ *
+ *
+ * NOTE: "addr" is expected to be XKPHYS address, and NOT physical
+ * address
+ *
+ *
+ */
+#define NODE_SWIN_ADDR(nasid, addr) \
+ (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
+ ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
+ ))
+
+/*
+ * The following define the major position-independent aliases used
+ * in SN.
+ * UALIAS -- 256MB in size, reads in the UALIAS result in
+ * uncached references to the memory of the reader's node.
+ * CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
+ * depending on which CPU does the access to provide
+ * all CPUs with unique uncached memory at low addresses.
+ * LBOOT -- 256MB in size, reads in the LBOOT area result in
+ * uncached references to the local hub's boot prom and
+ * other directory-bus connected devices.
+ * IALIAS -- 8MB in size, reads in the IALIAS result in uncached
+ * references to the local hub's registers.
+ */
+
+#define UALIAS_BASE HSPEC_BASE
+#define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
+#define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
+
+/*
+ * The bottom of ualias space is flipped depending on whether you're
+ * processor 0 or 1 within a node.
+ */
+#ifdef CONFIG_SGI_IP27
+#define UALIAS_FLIP_BASE UALIAS_BASE
+#define UALIAS_FLIP_SIZE 0x20000
+#define UALIAS_FLIP_BIT 0x10000
+#define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
+ (_x) ^ UALIAS_FLIP_BIT : (_x))
+
+#define LBOOT_BASE (HSPEC_BASE + 0x10000000)
+#define LBOOT_SIZE 0x10000000
+#define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
+#define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
+
+#endif
+
+#define HUB_REGISTER_WIDGET 1
+#define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
+#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
+#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
+ ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
+
+/*
+ * Macro for referring to Hub's RBOOT space
+ */
+
+#ifdef CONFIG_SGI_IP27
+#define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
+#define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
+#define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
+
+#endif
+
+/*
+ * Macros for referring the Hub's back door space
+ *
+ * These macros correctly process addresses in any node's space.
+ * WARNING: They won't work in assembler.
+ *
+ * BDDIR_ENTRY_LO returns the address of the low double-word of the dir
+ * entry corresponding to a physical (Cac or Uncac) address.
+ * BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
+ * BDPRT_ENTRY returns the address of the double-word protection entry
+ * corresponding to the page containing the physical address.
+ * BDPRT_ENTRY_S Stores the value into the protection entry.
+ * BDPRT_ENTRY_L Load the value from the protection entry.
+ * BDECC_ENTRY returns the address of the ECC byte corresponding to a
+ * double-word at a specified physical address.
+ * BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
+ * quad-word at a specified physical address.
+ */
+#define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
+
+#define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
+#define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
+#ifdef CONFIG_SGI_IP27
+#define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
+ NODE_ADDRSPACE_SIZE * 3 / 4 + \
+ 0x200) | \
+ UINT64_CAST(_pa) & NASID_MASK | \
+ UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
+ UINT64_CAST(_pa) >> 3 & 0x1f << 4)
+
+#define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
+ NODE_ADDRSPACE_SIZE * 3 / 4 + \
+ 0x208) | \
+ UINT64_CAST(_pa) & NASID_MASK | \
+ UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
+ UINT64_CAST(_pa) >> 3 & 0x1f << 4)
+
+#define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
+ NODE_ADDRSPACE_SIZE * 3 / 4) | \
+ UINT64_CAST(_pa) & NASID_MASK | \
+ UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
+ (_rgn) << 3)
+#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
+#define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val))
+#define BDPRT_ENTRY_L(_pa, _rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn)))
+
+#define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
+ NODE_ADDRSPACE_SIZE / 2) | \
+ UINT64_CAST(_pa) & NASID_MASK | \
+ UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK | \
+ UINT64_CAST(_pa) >> 3 & 3)
+
+/*
+ * Macro to convert a back door directory or protection address into the
+ * raw physical address of the associated cache line or protection page.
+ */
+#define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
+#define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
+
+#define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
+ (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 | \
+ (UINT64_CAST(_ba) & 0x1f << 4) << 3)
+
+#define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
+ (UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)
+
+#define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
+ (UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 | \
+ (UINT64_CAST(_ba) & 3) << 3)
+#endif /* CONFIG_SGI_IP27 */
+
+
+/*
+ * The following macros produce the correct base virtual address for
+ * the hub registers. The LOCAL_HUB_* macros produce the appropriate
+ * address for the local registers. The REMOTE_HUB_* macro produce
+ * the address for the specified hub's registers. The intent is
+ * that the appropriate PI, MD, NI, or II register would be substituted
+ * for _x.
+ */
+
+/*
+ * WARNING:
+ * When certain Hub chip workaround are defined, it's not sufficient
+ * to dereference the *_HUB_ADDR() macros. You should instead use
+ * HUB_L() and HUB_S() if you must deal with pointers to hub registers.
+ * Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
+ * They're always safe.
+ */
+#define LOCAL_HUB_ADDR(_x) (IALIAS_BASE + (_x))
+#define REMOTE_HUB_ADDR(_n, _x) ((NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x)))
+
+#ifndef __ASSEMBLY__
+
+#define LOCAL_HUB_PTR(_x) ((u64 *)LOCAL_HUB_ADDR((_x)))
+#define REMOTE_HUB_PTR(_n, _x) ((u64 *)REMOTE_HUB_ADDR((_n), (_x)))
+
+#define LOCAL_HUB_L(_r) __raw_readq(LOCAL_HUB_PTR(_r))
+#define LOCAL_HUB_S(_r, _d) __raw_writeq((_d), LOCAL_HUB_PTR(_r))
+#define REMOTE_HUB_L(_n, _r) __raw_readq(REMOTE_HUB_PTR((_n), (_r)))
+#define REMOTE_HUB_S(_n, _r, _d) __raw_writeq((_d), \
+ REMOTE_HUB_PTR((_n), (_r)))
+
+#endif /* !__ASSEMBLY__ */
+
+/*
+ * Software structure locations -- permanently fixed
+ * See diagram in kldir.h
+ */
+
+#define PHYS_RAMBASE 0x0
+#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
+
+#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
+#define EX_HANDLER_ADDR(nasid, slice) \
+ PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
+#define EX_HANDLER_SIZE 0x0400
+
+#define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
+#define EX_FRAME_ADDR(nasid, slice) \
+ PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
+#define EX_FRAME_SIZE 0x0c00
+
+#define ARCS_SPB_OFFSET 0x1000
+#define ARCS_SPB_ADDR(nasid) \
+ PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
+#define ARCS_SPB_SIZE 0x0400
+
+#define KLDIR_OFFSET 0x2000
+#define KLDIR_ADDR(nasid) \
+ TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
+#define KLDIR_SIZE 0x0400
+
+
+/*
+ * Software structure locations -- indirected through KLDIR
+ * See diagram in kldir.h
+ *
+ * Important: All low memory structures must only be accessed
+ * uncached, except for the symmon stacks.
+ */
+
+#define KLI_LAUNCH 0 /* Dir. entries */
+#define KLI_KLCONFIG 1
+#define KLI_NMI 2
+#define KLI_GDA 3
+#define KLI_FREEMEM 4
+#define KLI_SYMMON_STK 5
+#define KLI_PI_ERROR 6
+#define KLI_KERN_VARS 7
+#define KLI_KERN_XP 8
+#define KLI_KERN_PARTID 9
+
+#ifndef __ASSEMBLY__
+
+#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
+#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
+#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
+#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
+#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
+#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
+#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
+#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
+#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
+#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
+#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
+
+#define LAUNCH_OFFSET(nasid, slice) \
+ (KLD_LAUNCH(nasid)->offset + \
+ KLD_LAUNCH(nasid)->stride * (slice))
+#define LAUNCH_ADDR(nasid, slice) \
+ TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
+#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
+
+#define SN_NMI_OFFSET(nasid, slice) \
+ (KLD_NMI(nasid)->offset + \
+ KLD_NMI(nasid)->stride * (slice))
+#define NMI_ADDR(nasid, slice) \
+ TO_NODE_UNCAC((nasid), SN_NMI_OFFSET(nasid, slice))
+#define NMI_SIZE(nasid) KLD_NMI(nasid)->size
+
+#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
+#define KLCONFIG_ADDR(nasid) \
+ TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
+#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
+
+#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
+#define GDA_SIZE(nasid) KLD_GDA(nasid)->size
+
+#define SYMMON_STK_OFFSET(nasid, slice) \
+ (KLD_SYMMON_STK(nasid)->offset + \
+ KLD_SYMMON_STK(nasid)->stride * (slice))
+#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
+
+#define SYMMON_STK_ADDR(nasid, slice) \
+ TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
+
+#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
+
+#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
+
+#define NODE_OFFSET_TO_K0(_nasid, _off) \
+ PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
+#define NODE_OFFSET_TO_K1(_nasid, _off) \
+ TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
+
+#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
+#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
+
+#endif /* !__ASSEMBLY__ */
+
+
+#endif /* _ASM_SN_ADDRS_H */
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