430 lines
14 KiB
C
430 lines
14 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
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* Copyright (C) 1999, 2000 by Ralf Baechle
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*/
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#ifndef _ASM_SN_ADDRS_H
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#define _ASM_SN_ADDRS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#endif /* !__ASSEMBLY__ */
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#include <asm/addrspace.h>
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#include <asm/sn/kldir.h>
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#if defined(CONFIG_SGI_IP27)
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#include <asm/sn/sn0/addrs.h>
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#elif defined(CONFIG_SGI_IP35)
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#include <asm/sn/sn1/addrs.h>
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#endif
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#ifndef __ASSEMBLY__
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#define PS_UINT_CAST (unsigned long)
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#define UINT64_CAST (unsigned long)
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#define HUBREG_CAST (volatile hubreg_t *)
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#else /* __ASSEMBLY__ */
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#define PS_UINT_CAST
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#define UINT64_CAST
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#define HUBREG_CAST
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#endif /* __ASSEMBLY__ */
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#define NASID_GET_META(_n) ((_n) >> NASID_LOCAL_BITS)
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#ifdef CONFIG_SGI_IP27
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#define NASID_GET_LOCAL(_n) ((_n) & 0xf)
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#endif
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#define NASID_MAKE(_m, _l) (((_m) << NASID_LOCAL_BITS) | (_l))
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#define NODE_ADDRSPACE_MASK (NODE_ADDRSPACE_SIZE - 1)
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#define TO_NODE_ADDRSPACE(_pa) (UINT64_CAST (_pa) & NODE_ADDRSPACE_MASK)
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#define CHANGE_ADDR_NASID(_pa, _nasid) \
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((UINT64_CAST(_pa) & ~NASID_MASK) | \
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(UINT64_CAST(_nasid) << NASID_SHFT))
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/*
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* The following macros are used to index to the beginning of a specific
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* node's address space.
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*/
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#define NODE_OFFSET(_n) (UINT64_CAST (_n) << NODE_SIZE_BITS)
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#define NODE_CAC_BASE(_n) (CAC_BASE + NODE_OFFSET(_n))
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#define NODE_HSPEC_BASE(_n) (HSPEC_BASE + NODE_OFFSET(_n))
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#define NODE_IO_BASE(_n) (IO_BASE + NODE_OFFSET(_n))
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#define NODE_MSPEC_BASE(_n) (MSPEC_BASE + NODE_OFFSET(_n))
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#define NODE_UNCAC_BASE(_n) (UNCAC_BASE + NODE_OFFSET(_n))
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#define TO_NODE(_n, _x) (NODE_OFFSET(_n) | ((_x) ))
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#define TO_NODE_CAC(_n, _x) (NODE_CAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
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#define TO_NODE_UNCAC(_n, _x) (NODE_UNCAC_BASE(_n) | ((_x) & TO_PHYS_MASK))
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#define TO_NODE_MSPEC(_n, _x) (NODE_MSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
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#define TO_NODE_HSPEC(_n, _x) (NODE_HSPEC_BASE(_n) | ((_x) & TO_PHYS_MASK))
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#define RAW_NODE_SWIN_BASE(nasid, widget) \
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(NODE_IO_BASE(nasid) + (UINT64_CAST(widget) << SWIN_SIZE_BITS))
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#define WIDGETID_GET(addr) ((unsigned char)((addr >> SWIN_SIZE_BITS) & 0xff))
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/*
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* The following definitions pertain to the IO special address
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* space. They define the location of the big and little windows
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* of any given node.
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*/
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#define SWIN_SIZE_BITS 24
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#define SWIN_SIZE (UINT64_CAST 1 << 24)
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#define SWIN_SIZEMASK (SWIN_SIZE - 1)
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#define SWIN_WIDGET_MASK 0xF
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/*
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* Convert smallwindow address to xtalk address.
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*
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* 'addr' can be physical or virtual address, but will be converted
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* to Xtalk address in the range 0 -> SWINZ_SIZEMASK
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*/
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#define SWIN_WIDGETADDR(addr) ((addr) & SWIN_SIZEMASK)
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#define SWIN_WIDGETNUM(addr) (((addr) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
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/*
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* Verify if addr belongs to small window address on node with "nasid"
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*
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*
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* NOTE: "addr" is expected to be XKPHYS address, and NOT physical
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* address
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*
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*
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*/
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#define NODE_SWIN_ADDR(nasid, addr) \
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(((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
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((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
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))
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/*
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* The following define the major position-independent aliases used
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* in SN.
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* UALIAS -- 256MB in size, reads in the UALIAS result in
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* uncached references to the memory of the reader's node.
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* CPU_UALIAS -- 128kb in size, the bottom part of UALIAS is flipped
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* depending on which CPU does the access to provide
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* all CPUs with unique uncached memory at low addresses.
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* LBOOT -- 256MB in size, reads in the LBOOT area result in
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* uncached references to the local hub's boot prom and
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* other directory-bus connected devices.
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* IALIAS -- 8MB in size, reads in the IALIAS result in uncached
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* references to the local hub's registers.
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*/
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#define UALIAS_BASE HSPEC_BASE
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#define UALIAS_SIZE 0x10000000 /* 256 Megabytes */
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#define UALIAS_LIMIT (UALIAS_BASE + UALIAS_SIZE)
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/*
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* The bottom of ualias space is flipped depending on whether you're
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* processor 0 or 1 within a node.
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*/
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#ifdef CONFIG_SGI_IP27
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#define UALIAS_FLIP_BASE UALIAS_BASE
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#define UALIAS_FLIP_SIZE 0x20000
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#define UALIAS_FLIP_BIT 0x10000
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#define UALIAS_FLIP_ADDR(_x) (cputoslice(smp_processor_id()) ? \
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(_x) ^ UALIAS_FLIP_BIT : (_x))
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#define LBOOT_BASE (HSPEC_BASE + 0x10000000)
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#define LBOOT_SIZE 0x10000000
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#define LBOOT_LIMIT (LBOOT_BASE + LBOOT_SIZE)
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#define LBOOT_STRIDE 0 /* IP27 has only one CPU PROM */
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#endif
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#define HUB_REGISTER_WIDGET 1
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#define IALIAS_BASE NODE_SWIN_BASE(0, HUB_REGISTER_WIDGET)
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#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
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#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
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((_a) < (IALIAS_BASE + IALIAS_SIZE)))
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/*
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* Macro for referring to Hub's RBOOT space
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*/
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#ifdef CONFIG_SGI_IP27
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#define RBOOT_SIZE 0x10000000 /* 256 Megabytes */
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#define NODE_RBOOT_BASE(_n) (NODE_HSPEC_BASE(_n) + 0x30000000)
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#define NODE_RBOOT_LIMIT(_n) (NODE_RBOOT_BASE(_n) + RBOOT_SIZE)
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#endif
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/*
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* Macros for referring the Hub's back door space
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*
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* These macros correctly process addresses in any node's space.
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* WARNING: They won't work in assembler.
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*
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* BDDIR_ENTRY_LO returns the address of the low double-word of the dir
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* entry corresponding to a physical (Cac or Uncac) address.
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* BDDIR_ENTRY_HI returns the address of the high double-word of the entry.
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* BDPRT_ENTRY returns the address of the double-word protection entry
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* corresponding to the page containing the physical address.
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* BDPRT_ENTRY_S Stores the value into the protection entry.
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* BDPRT_ENTRY_L Load the value from the protection entry.
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* BDECC_ENTRY returns the address of the ECC byte corresponding to a
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* double-word at a specified physical address.
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* BDECC_ENTRY_H returns the address of the two ECC bytes corresponding to a
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* quad-word at a specified physical address.
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*/
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#define NODE_BDOOR_BASE(_n) (NODE_HSPEC_BASE(_n) + (NODE_ADDRSPACE_SIZE/2))
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#define NODE_BDECC_BASE(_n) (NODE_BDOOR_BASE(_n))
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#define NODE_BDDIR_BASE(_n) (NODE_BDOOR_BASE(_n) + (NODE_ADDRSPACE_SIZE/4))
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#ifdef CONFIG_SGI_IP27
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#define BDDIR_ENTRY_LO(_pa) ((HSPEC_BASE + \
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NODE_ADDRSPACE_SIZE * 3 / 4 + \
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0x200) | \
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UINT64_CAST(_pa) & NASID_MASK | \
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UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
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UINT64_CAST(_pa) >> 3 & 0x1f << 4)
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#define BDDIR_ENTRY_HI(_pa) ((HSPEC_BASE + \
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NODE_ADDRSPACE_SIZE * 3 / 4 + \
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0x208) | \
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UINT64_CAST(_pa) & NASID_MASK | \
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UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
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UINT64_CAST(_pa) >> 3 & 0x1f << 4)
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#define BDPRT_ENTRY(_pa, _rgn) ((HSPEC_BASE + \
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NODE_ADDRSPACE_SIZE * 3 / 4) | \
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UINT64_CAST(_pa) & NASID_MASK | \
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UINT64_CAST(_pa) >> 2 & BDDIR_UPPER_MASK | \
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(_rgn) << 3)
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#define BDPRT_ENTRY_ADDR(_pa, _rgn) (BDPRT_ENTRY((_pa), (_rgn)))
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#define BDPRT_ENTRY_S(_pa, _rgn, _val) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn))=(_val))
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#define BDPRT_ENTRY_L(_pa, _rgn) (*(__psunsigned_t *)BDPRT_ENTRY((_pa), (_rgn)))
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#define BDECC_ENTRY(_pa) ((HSPEC_BASE + \
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NODE_ADDRSPACE_SIZE / 2) | \
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UINT64_CAST(_pa) & NASID_MASK | \
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UINT64_CAST(_pa) >> 2 & BDECC_UPPER_MASK | \
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UINT64_CAST(_pa) >> 3 & 3)
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/*
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* Macro to convert a back door directory or protection address into the
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* raw physical address of the associated cache line or protection page.
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*/
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#define BDADDR_IS_DIR(_ba) ((UINT64_CAST (_ba) & 0x200) != 0)
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#define BDADDR_IS_PRT(_ba) ((UINT64_CAST (_ba) & 0x200) == 0)
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#define BDDIR_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
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(UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2 | \
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(UINT64_CAST(_ba) & 0x1f << 4) << 3)
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#define BDPRT_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
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(UINT64_CAST(_ba) & BDDIR_UPPER_MASK)<<2)
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#define BDECC_TO_MEM(_ba) (UINT64_CAST (_ba) & NASID_MASK | \
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(UINT64_CAST(_ba) & BDECC_UPPER_MASK)<<2 | \
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(UINT64_CAST(_ba) & 3) << 3)
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#endif /* CONFIG_SGI_IP27 */
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/*
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* The following macros produce the correct base virtual address for
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* the hub registers. The LOCAL_HUB_* macros produce the appropriate
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* address for the local registers. The REMOTE_HUB_* macro produce
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* the address for the specified hub's registers. The intent is
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* that the appropriate PI, MD, NI, or II register would be substituted
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* for _x.
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*/
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/*
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* WARNING:
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* When certain Hub chip workaround are defined, it's not sufficient
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* to dereference the *_HUB_ADDR() macros. You should instead use
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* HUB_L() and HUB_S() if you must deal with pointers to hub registers.
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* Otherwise, the recommended approach is to use *_HUB_L() and *_HUB_S().
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* They're always safe.
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*/
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#define LOCAL_HUB_ADDR(_x) (HUBREG_CAST (IALIAS_BASE + (_x)))
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#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
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0x800000 + (_x)))
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#ifdef CONFIG_SGI_IP27
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#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \
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0x800000 + (_x)))
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#endif /* CONFIG_SGI_IP27 */
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#ifndef __ASSEMBLY__
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#define HUB_L(_a) *(_a)
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#define HUB_S(_a, _d) *(_a) = (_d)
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#define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r))
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#define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d))
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#define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r)))
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#define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d))
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#define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)))
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#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d))
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#endif /* !__ASSEMBLY__ */
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/*
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* The following macros are used to get to a hub/bridge register, given
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* the base of the register space.
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*/
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#define HUB_REG_PTR(_base, _off) \
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(HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off)))
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#define HUB_REG_PTR_L(_base, _off) \
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HUB_L(HUB_REG_PTR((_base), (_off)))
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#define HUB_REG_PTR_S(_base, _off, _data) \
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HUB_S(HUB_REG_PTR((_base), (_off)), (_data))
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/*
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* Software structure locations -- permanently fixed
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* See diagram in kldir.h
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*/
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#define PHYS_RAMBASE 0x0
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#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
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#define EX_HANDLER_OFFSET(slice) ((slice) << 16)
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#define EX_HANDLER_ADDR(nasid, slice) \
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PHYS_TO_K0(NODE_OFFSET(nasid) | EX_HANDLER_OFFSET(slice))
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#define EX_HANDLER_SIZE 0x0400
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#define EX_FRAME_OFFSET(slice) ((slice) << 16 | 0x400)
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#define EX_FRAME_ADDR(nasid, slice) \
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PHYS_TO_K0(NODE_OFFSET(nasid) | EX_FRAME_OFFSET(slice))
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#define EX_FRAME_SIZE 0x0c00
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#define ARCS_SPB_OFFSET 0x1000
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#define ARCS_SPB_ADDR(nasid) \
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PHYS_TO_K0(NODE_OFFSET(nasid) | ARCS_SPB_OFFSET)
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#define ARCS_SPB_SIZE 0x0400
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#define KLDIR_OFFSET 0x2000
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#define KLDIR_ADDR(nasid) \
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TO_NODE_UNCAC((nasid), KLDIR_OFFSET)
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#define KLDIR_SIZE 0x0400
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/*
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* Software structure locations -- indirected through KLDIR
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* See diagram in kldir.h
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*
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* Important: All low memory structures must only be accessed
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* uncached, except for the symmon stacks.
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*/
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#define KLI_LAUNCH 0 /* Dir. entries */
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#define KLI_KLCONFIG 1
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#define KLI_NMI 2
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#define KLI_GDA 3
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#define KLI_FREEMEM 4
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#define KLI_SYMMON_STK 5
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#define KLI_PI_ERROR 6
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#define KLI_KERN_VARS 7
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#define KLI_KERN_XP 8
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#define KLI_KERN_PARTID 9
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#ifndef __ASSEMBLY__
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#define KLD_BASE(nasid) ((kldir_ent_t *) KLDIR_ADDR(nasid))
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#define KLD_LAUNCH(nasid) (KLD_BASE(nasid) + KLI_LAUNCH)
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#define KLD_NMI(nasid) (KLD_BASE(nasid) + KLI_NMI)
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#define KLD_KLCONFIG(nasid) (KLD_BASE(nasid) + KLI_KLCONFIG)
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#define KLD_PI_ERROR(nasid) (KLD_BASE(nasid) + KLI_PI_ERROR)
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#define KLD_GDA(nasid) (KLD_BASE(nasid) + KLI_GDA)
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#define KLD_SYMMON_STK(nasid) (KLD_BASE(nasid) + KLI_SYMMON_STK)
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#define KLD_FREEMEM(nasid) (KLD_BASE(nasid) + KLI_FREEMEM)
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#define KLD_KERN_VARS(nasid) (KLD_BASE(nasid) + KLI_KERN_VARS)
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#define KLD_KERN_XP(nasid) (KLD_BASE(nasid) + KLI_KERN_XP)
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#define KLD_KERN_PARTID(nasid) (KLD_BASE(nasid) + KLI_KERN_PARTID)
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#define LAUNCH_OFFSET(nasid, slice) \
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(KLD_LAUNCH(nasid)->offset + \
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KLD_LAUNCH(nasid)->stride * (slice))
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#define LAUNCH_ADDR(nasid, slice) \
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TO_NODE_UNCAC((nasid), LAUNCH_OFFSET(nasid, slice))
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#define LAUNCH_SIZE(nasid) KLD_LAUNCH(nasid)->size
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#define NMI_OFFSET(nasid, slice) \
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(KLD_NMI(nasid)->offset + \
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KLD_NMI(nasid)->stride * (slice))
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#define NMI_ADDR(nasid, slice) \
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TO_NODE_UNCAC((nasid), NMI_OFFSET(nasid, slice))
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#define NMI_SIZE(nasid) KLD_NMI(nasid)->size
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#define KLCONFIG_OFFSET(nasid) KLD_KLCONFIG(nasid)->offset
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#define KLCONFIG_ADDR(nasid) \
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TO_NODE_UNCAC((nasid), KLCONFIG_OFFSET(nasid))
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#define KLCONFIG_SIZE(nasid) KLD_KLCONFIG(nasid)->size
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#define GDA_ADDR(nasid) KLD_GDA(nasid)->pointer
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#define GDA_SIZE(nasid) KLD_GDA(nasid)->size
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#define SYMMON_STK_OFFSET(nasid, slice) \
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(KLD_SYMMON_STK(nasid)->offset + \
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KLD_SYMMON_STK(nasid)->stride * (slice))
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#define SYMMON_STK_STRIDE(nasid) KLD_SYMMON_STK(nasid)->stride
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#define SYMMON_STK_ADDR(nasid, slice) \
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TO_NODE_CAC((nasid), SYMMON_STK_OFFSET(nasid, slice))
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#define SYMMON_STK_SIZE(nasid) KLD_SYMMON_STK(nasid)->stride
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#define SYMMON_STK_END(nasid) (SYMMON_STK_ADDR(nasid, 0) + KLD_SYMMON_STK(nasid)->size)
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/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a
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* relocatable program
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*/
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#define UNIX_DEBUG_LOADADDR 0x300000
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#define SYMMON_LOADADDR(nasid) \
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TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000))
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#define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset
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#define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid)
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/*
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* XXX
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* Fix this. FREEMEM_ADDR should be aware of if symmon is loaded.
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* Also, it should take into account what prom thinks to be a safe
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* address
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PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid))
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*/
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#define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size
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#define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset
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#define PI_ERROR_ADDR(nasid) \
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TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid))
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#define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(nasid)->size
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#define NODE_OFFSET_TO_K0(_nasid, _off) \
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PHYS_TO_K0((NODE_OFFSET(_nasid) + (_off)) | CAC_BASE)
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#define NODE_OFFSET_TO_K1(_nasid, _off) \
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TO_UNCAC((NODE_OFFSET(_nasid) + (_off)) | UNCAC_BASE)
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#define K0_TO_NODE_OFFSET(_k0addr) \
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((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK)
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#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer
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#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size
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#define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer
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#define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size
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#define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET)
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_SN_ADDRS_H */
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