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author | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 12:39:35 -0700 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /arch/mips/include/asm/sn/addrs.h | |
parent | 4dd95b63ae25c5cad6986829b5e8788e9faa0330 (diff) | |
parent | ead9d23d803ea3a73766c3cb27bf7563ac8d7266 (diff) | |
download | op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.zip op-kernel-dev-56c5d900dbb8e042bfad035d18433476931d8f93.tar.gz |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'arch/mips/include/asm/sn/addrs.h')
-rw-r--r-- | arch/mips/include/asm/sn/addrs.h | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/arch/mips/include/asm/sn/addrs.h b/arch/mips/include/asm/sn/addrs.h new file mode 100644 index 0000000..fec9bdd3 --- /dev/null +++ b/arch/mips/include/asm/sn/addrs.h @@ -0,0 +1,430 @@ +/* + * 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/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 PS_UINT_CAST (unsigned long) +#define UINT64_CAST (unsigned long) + +#define HUBREG_CAST (volatile hubreg_t *) + +#else /* __ASSEMBLY__ */ + +#define PS_UINT_CAST +#define UINT64_CAST +#define HUBREG_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) (HUBREG_CAST (IALIAS_BASE + (_x))) +#define REMOTE_HUB_ADDR(_n, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ + 0x800000 + (_x))) +#ifdef CONFIG_SGI_IP27 +#define REMOTE_HUB_PI_ADDR(_n, _sn, _x) (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + \ + 0x800000 + (_x))) +#endif /* CONFIG_SGI_IP27 */ + +#ifndef __ASSEMBLY__ + +#define HUB_L(_a) *(_a) +#define HUB_S(_a, _d) *(_a) = (_d) + +#define LOCAL_HUB_L(_r) HUB_L(LOCAL_HUB_ADDR(_r)) +#define LOCAL_HUB_S(_r, _d) HUB_S(LOCAL_HUB_ADDR(_r), (_d)) +#define REMOTE_HUB_L(_n, _r) HUB_L(REMOTE_HUB_ADDR((_n), (_r))) +#define REMOTE_HUB_S(_n, _r, _d) HUB_S(REMOTE_HUB_ADDR((_n), (_r)), (_d)) +#define REMOTE_HUB_PI_L(_n, _sn, _r) HUB_L(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r))) +#define REMOTE_HUB_PI_S(_n, _sn, _r, _d) HUB_S(REMOTE_HUB_PI_ADDR((_n), (_sn), (_r)), (_d)) + +#endif /* !__ASSEMBLY__ */ + +/* + * The following macros are used to get to a hub/bridge register, given + * the base of the register space. + */ +#define HUB_REG_PTR(_base, _off) \ + (HUBREG_CAST((__psunsigned_t)(_base) + (__psunsigned_t)(_off))) + +#define HUB_REG_PTR_L(_base, _off) \ + HUB_L(HUB_REG_PTR((_base), (_off))) + +#define HUB_REG_PTR_S(_base, _off, _data) \ + HUB_S(HUB_REG_PTR((_base), (_off)), (_data)) + +/* + * 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 NMI_OFFSET(nasid, slice) \ + (KLD_NMI(nasid)->offset + \ + KLD_NMI(nasid)->stride * (slice)) +#define NMI_ADDR(nasid, slice) \ + TO_NODE_UNCAC((nasid), 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) + +/* loading symmon 4k below UNIX. the arcs loader needs the topaddr for a + * relocatable program + */ +#define UNIX_DEBUG_LOADADDR 0x300000 +#define SYMMON_LOADADDR(nasid) \ + TO_NODE(nasid, PHYS_TO_K0(UNIX_DEBUG_LOADADDR - 0x1000)) + +#define FREEMEM_OFFSET(nasid) KLD_FREEMEM(nasid)->offset +#define FREEMEM_ADDR(nasid) SYMMON_STK_END(nasid) +/* + * XXX + * Fix this. FREEMEM_ADDR should be aware of if symmon is loaded. + * Also, it should take into account what prom thinks to be a safe + * address + PHYS_TO_K0(NODE_OFFSET(nasid) + FREEMEM_OFFSET(nasid)) + */ +#define FREEMEM_SIZE(nasid) KLD_FREEMEM(nasid)->size + +#define PI_ERROR_OFFSET(nasid) KLD_PI_ERROR(nasid)->offset +#define PI_ERROR_ADDR(nasid) \ + TO_NODE_UNCAC((nasid), PI_ERROR_OFFSET(nasid)) +#define PI_ERROR_SIZE(nasid) KLD_PI_ERROR(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 K0_TO_NODE_OFFSET(_k0addr) \ + ((__psunsigned_t)(_k0addr) & NODE_ADDRSPACE_MASK) + +#define KERN_VARS_ADDR(nasid) KLD_KERN_VARS(nasid)->pointer +#define KERN_VARS_SIZE(nasid) KLD_KERN_VARS(nasid)->size + +#define KERN_XP_ADDR(nasid) KLD_KERN_XP(nasid)->pointer +#define KERN_XP_SIZE(nasid) KLD_KERN_XP(nasid)->size + +#define GPDA_ADDR(nasid) TO_NODE_CAC(nasid, GPDA_OFFSET) + +#endif /* !__ASSEMBLY__ */ + + +#endif /* _ASM_SN_ADDRS_H */ |