/* * 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 */