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377 lines
13 KiB
377 lines
13 KiB
/* |
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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/smp.h> |
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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 UINT64_CAST (unsigned long) |
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#else /* __ASSEMBLY__ */ |
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#define UINT64_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) (IALIAS_BASE + (_x)) |
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#define REMOTE_HUB_ADDR(_n, _x) ((NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x))) |
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#ifndef __ASSEMBLY__ |
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#define LOCAL_HUB_PTR(_x) ((u64 *)LOCAL_HUB_ADDR((_x))) |
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#define REMOTE_HUB_PTR(_n, _x) ((u64 *)REMOTE_HUB_ADDR((_n), (_x))) |
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#define LOCAL_HUB_L(_r) __raw_readq(LOCAL_HUB_PTR(_r)) |
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#define LOCAL_HUB_S(_r, _d) __raw_writeq((_d), LOCAL_HUB_PTR(_r)) |
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#define REMOTE_HUB_L(_n, _r) __raw_readq(REMOTE_HUB_PTR((_n), (_r))) |
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#define REMOTE_HUB_S(_n, _r, _d) __raw_writeq((_d), \ |
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REMOTE_HUB_PTR((_n), (_r))) |
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#endif /* !__ASSEMBLY__ */ |
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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 SN_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), SN_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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#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 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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#endif /* !__ASSEMBLY__ */ |
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#endif /* _ASM_SN_ADDRS_H */
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