* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (c) 1992-1999,2001-2003 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (c) 1992-1999,2001-2004 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_ADDRS_H
#define _ASM_IA64_SN_ADDRS_H
-#include <asm/sn/sn2/addrs.h>
-
-#ifndef __ASSEMBLY__
+#include <asm/percpu.h>
#include <asm/sn/types.h>
-#endif
-
-#define HUBREG_CAST (volatile mmr_t *)
-
+#include <asm/sn/pda.h>
/*
- * The following macros are used to index to the beginning of a specific
- * node's address space.
+ * Memory/SHUB Address Format:
+ * +-+---------+--+--------------+
+ * |0| NASID |AS| NodeOffset |
+ * +-+---------+--+--------------+
+ *
+ * NASID: (low NASID bit is 0) Memory and SHUB MMRs
+ * AS: 2-bit Address Space Identifier. Used only if low NASID bit is 0
+ * 00: Local Resources and MMR space
+ * Top bit of NodeOffset
+ * 0: Local resources space
+ * node id:
+ * 0: IA64/NT compatibility space
+ * 2: Local MMR Space
+ * 4: Local memory, regardless of local node id
+ * 1: Global MMR space
+ * 01: GET space.
+ * 10: AMO space.
+ * 11: Cacheable memory space.
+ *
+ * NodeOffset: byte offset
+ *
+ *
+ * TIO address format:
+ * +-+----------+--+--------------+
+ * |0| NASID |AS| Nodeoffset |
+ * +-+----------+--+--------------+
+ *
+ * NASID: (low NASID bit is 1) TIO
+ * AS: 2-bit Chiplet Identifier
+ * 00: TIO LB (Indicates TIO MMR access.)
+ * 01: TIO ICE (indicates coretalk space access.)
+ *
+ * NodeOffset: top bit must be set.
+ *
+ *
+ * Note that in both of the above address formats, the low
+ * NASID bit indicates if the reference is to the SHUB or TIO MMRs.
*/
-#define NODE_OFFSET(_n) ((uint64_t) (_n) << NASID_SHFT)
-
-#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 basic shift & mask constants for manipulating NASIDs and AS values.
+ */
+#define NASID_BITMASK (pda->nasid_bitmask)
+#define NASID_SHIFT (pda->nasid_shift)
+#define AS_SHIFT (pda->as_shift)
+#define AS_BITMASK 0x3UL
-#define RAW_NODE_SWIN_BASE(nasid, widget) \
- (NODE_IO_BASE(nasid) + ((uint64_t) (widget) << SWIN_SIZE_BITS))
+#define NASID_MASK ((u64)NASID_BITMASK << NASID_SHIFT)
+#define AS_MASK ((u64)AS_BITMASK << AS_SHIFT)
+#define REGION_BITS 0xe000000000000000UL
-#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.
+ * AS values. These are the same on both SHUB1 & SHUB2.
*/
+#define AS_GET_VAL 1UL
+#define AS_AMO_VAL 2UL
+#define AS_CAC_VAL 3UL
+#define AS_GET_SPACE (AS_GET_VAL << AS_SHIFT)
+#define AS_AMO_SPACE (AS_AMO_VAL << AS_SHIFT)
+#define AS_CAC_SPACE (AS_CAC_VAL << AS_SHIFT)
-#define SWIN_SIZE_BITS 24
-#define SWIN_SIZE (1UL << 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
+ * Base addresses for various address ranges.
*/
-#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 CACHED 0xe000000000000000UL
+#define UNCACHED 0xc000000000000000UL
+#define UNCACHED_PHYS 0x8000000000000000UL
+
+
+/*
+ * Virtual Mode Local & Global MMR space.
*/
-#define NODE_SWIN_ADDR(nasid, addr) \
- (((addr) >= NODE_SWIN_BASE(nasid, 0)) && \
- ((addr) < (NODE_SWIN_BASE(nasid, HUB_NUM_WIDGET) + SWIN_SIZE)\
- ))
+#define SH1_LOCAL_MMR_OFFSET 0x8000000000UL
+#define SH2_LOCAL_MMR_OFFSET 0x0200000000UL
+#define LOCAL_MMR_OFFSET (is_shub2() ? SH2_LOCAL_MMR_OFFSET : SH1_LOCAL_MMR_OFFSET)
+#define LOCAL_MMR_SPACE (UNCACHED | LOCAL_MMR_OFFSET)
+#define LOCAL_PHYS_MMR_SPACE (UNCACHED_PHYS | LOCAL_MMR_OFFSET)
+
+#define SH1_GLOBAL_MMR_OFFSET 0x0800000000UL
+#define SH2_GLOBAL_MMR_OFFSET 0x0300000000UL
+#define GLOBAL_MMR_OFFSET (is_shub2() ? SH2_GLOBAL_MMR_OFFSET : SH1_GLOBAL_MMR_OFFSET)
+#define GLOBAL_MMR_SPACE (UNCACHED | GLOBAL_MMR_OFFSET)
/*
- * The following define the major position-independent aliases used
- * in SN.
- * 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.
+ * Physical mode addresses
*/
+#define GLOBAL_PHYS_MMR_SPACE (UNCACHED_PHYS | GLOBAL_MMR_OFFSET)
-#define HUB_REGISTER_WIDGET 1
-#define IALIAS_BASE LOCAL_SWIN_BASE(HUB_REGISTER_WIDGET)
-#define IALIAS_SIZE 0x800000 /* 8 Megabytes */
-#define IS_IALIAS(_a) (((_a) >= IALIAS_BASE) && \
- ((_a) < (IALIAS_BASE + IALIAS_SIZE)))
/*
- * 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.
+ * Clear region & AS bits.
*/
+#define TO_PHYS_MASK (~(REGION_BITS | AS_MASK))
/*
- * SN2 has II mmr's located inside small window space.
- * As all other non-II mmr's located at the top of big window
- * space.
+ * Misc NASID manipulation.
*/
-#define LOCAL_HUB_BASE(_x) (LOCAL_MMR_ADDR(_x) | (((~(_x)) & BWIN_TOP)>>8))
-#define REMOTE_HUB_BASE(_x) \
- (UNCACHED | GLOBAL_MMR_SPACE | \
- (((~(_x)) & BWIN_TOP)>>8) | \
- (((~(_x)) & BWIN_TOP)>>9) | (_x))
+#define NASID_SPACE(n) ((u64)(n) << NASID_SHIFT)
+#define REMOTE_ADDR(n,a) (NASID_SPACE(n) | (a))
+#define NODE_OFFSET(x) ((x) & (NODE_ADDRSPACE_SIZE - 1))
+#define NODE_ADDRSPACE_SIZE (1UL << AS_SHIFT)
+#define NASID_GET(x) (int) (((u64) (x) >> NASID_SHIFT) & NASID_BITMASK)
+#define LOCAL_MMR_ADDR(a) (LOCAL_MMR_SPACE | (a))
+#define GLOBAL_MMR_ADDR(n,a) (GLOBAL_MMR_SPACE | REMOTE_ADDR(n,a))
+#define GLOBAL_MMR_PHYS_ADDR(n,a) (GLOBAL_PHYS_MMR_SPACE | REMOTE_ADDR(n,a))
+#define GLOBAL_CAC_ADDR(n,a) (CAC_BASE | REMOTE_ADDR(n,a))
+#define CHANGE_NASID(n,x) ((void *)(((u64)(x) & ~NASID_MASK) | NASID_SPACE(n)))
-#define LOCAL_HUB(_x) (HUBREG_CAST LOCAL_HUB_BASE(_x))
-#define REMOTE_HUB(_n, _x) \
- (HUBREG_CAST (REMOTE_HUB_BASE(_x) | ((((long)(_n))<<NASID_SHFT))))
+/* non-II mmr's start at top of big window space (4G) */
+#define BWIN_TOP 0x0000000100000000UL
/*
- * 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.
+ * general address defines
*/
-#define LOCAL_HUB_ADDR(_x) \
- (((_x) & BWIN_TOP) ? (HUBREG_CAST (LOCAL_MMR_ADDR(_x))) \
- : (HUBREG_CAST (IALIAS_BASE + (_x))))
-#define REMOTE_HUB_ADDR(_n, _x) \
- (((_x) & BWIN_TOP) ? (HUBREG_CAST (GLOBAL_MMR_ADDR(_n, _x))) \
- : (HUBREG_CAST (NODE_SWIN_BASE(_n, 1) + 0x800000 + (_x))))
+#define CAC_BASE (CACHED | AS_CAC_SPACE)
+#define AMO_BASE (UNCACHED | AS_AMO_SPACE)
+#define GET_BASE (CACHED | AS_GET_SPACE)
-#ifndef __ASSEMBLY__
+/*
+ * Convert Memory addresses between various addressing modes.
+ */
+#define TO_PHYS(x) (TO_PHYS_MASK & (x))
+#define TO_CAC(x) (CAC_BASE | TO_PHYS(x))
+#define TO_AMO(x) (AMO_BASE | TO_PHYS(x))
+#define TO_GET(x) (GET_BASE | TO_PHYS(x))
-#define HUB_L(_a) (*((volatile typeof(*_a) *)_a))
-#define HUB_S(_a, _d) (*((volatile typeof(*_a) *)_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))
+/*
+ * Covert from processor physical address to II/TIO physical address:
+ * II - squeeze out the AS bits
+ * TIO- requires a chiplet id in bits 38-39. For DMA to memory,
+ * the chiplet id is zero. If we implement TIO-TIO dma, we might need
+ * to insert a chiplet id into this macro. However, it is our belief
+ * right now that this chiplet id will be ICE, which is also zero.
+ */
+#define PHYS_TO_TIODMA(x) ( (((u64)(x) & NASID_MASK) << 2) | NODE_OFFSET(x))
+#define PHYS_TO_DMA(x) ( (((u64)(x) & NASID_MASK) >> 2) | NODE_OFFSET(x))
-#endif /* __ASSEMBLY__ */
/*
- * The following macros are used to get to a hub/bridge register, given
- * the base of the register space.
+ * 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 HUB_REG_PTR(_base, _off) \
- (HUBREG_CAST ((unsigned long)(_base) + (__psunsigned_t)(_off)))
+#define BWIN_SIZE_BITS 29 /* big window size: 512M */
+#define TIO_BWIN_SIZE_BITS 30 /* big window size: 1G */
+#define NODE_SWIN_BASE(n, w) ((w == 0) ? NODE_BWIN_BASE((n), SWIN0_BIGWIN) \
+ : RAW_NODE_SWIN_BASE(n, w))
+#define NODE_IO_BASE(n) (GLOBAL_MMR_SPACE | NASID_SPACE(n))
+#define BWIN_SIZE (1UL << BWIN_SIZE_BITS)
+#define NODE_BWIN_BASE0(n) (NODE_IO_BASE(n) + BWIN_SIZE)
+#define NODE_BWIN_BASE(n, w) (NODE_BWIN_BASE0(n) + ((u64) (w) << BWIN_SIZE_BITS))
+#define RAW_NODE_SWIN_BASE(n, w) (NODE_IO_BASE(n) + ((u64) (w) << SWIN_SIZE_BITS))
+#define BWIN_WIDGET_MASK 0x7
+#define BWIN_WINDOWNUM(x) (((x) >> BWIN_SIZE_BITS) & BWIN_WIDGET_MASK)
+
+#define TIO_BWIN_WINDOW_SELECT_MASK 0x7
+#define TIO_BWIN_WINDOWNUM(x) (((x) >> TIO_BWIN_SIZE_BITS) & TIO_BWIN_WINDOW_SELECT_MASK)
-#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
+ * 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 PHYS_RAMBASE 0x0
-#define K0_RAMBASE PHYS_TO_K0(PHYS_RAMBASE)
+#define SWIN_SIZE_BITS 24
+#define SWIN_WIDGET_MASK 0xF
-#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 TIO_SWIN_SIZE_BITS 28
+#define TIO_SWIN_SIZE (1UL << TIO_SWIN_SIZE_BITS)
+#define TIO_SWIN_WIDGET_MASK 0x3
-#define KLDIR_OFFSET 0x2000
-#define KLDIR_ADDR(nasid) \
- TO_NODE_CAC((nasid), KLDIR_OFFSET)
-#define KLDIR_SIZE 0x0400
+/*
+ * 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_WIDGETNUM(x) (((x) >> SWIN_SIZE_BITS) & SWIN_WIDGET_MASK)
+#define TIO_SWIN_WIDGETNUM(x) (((x) >> TIO_SWIN_SIZE_BITS) & TIO_SWIN_WIDGET_MASK)
/*
- * Software structure locations -- indirected through KLDIR
- * See diagram in kldir.h
+ * The following macros produce the correct base virtual address for
+ * the hub 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.
*
- * 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 KLCONFIG_OFFSET(nasid) ia64_sn_get_klconfig_addr(nasid)
-
-#define KLCONFIG_ADDR(nasid) \
- TO_NODE_CAC((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 NODE_OFFSET_TO_K0(_nasid, _off) \
- (CACHEABLE_MEM_SPACE | NODE_OFFSET(_nasid) | (_off))
-
-#endif /* __ASSEMBLY__ */
+ * 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 REMOTE_HUB_ADDR(n,x) \
+ ((n & 1) ? \
+ /* TIO: */ \
+ ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x))) \
+ : /* SHUB: */ \
+ (((x) & BWIN_TOP) ? ((volatile u64 *)(GLOBAL_MMR_ADDR(n,x)))\
+ : ((volatile u64 *)(NODE_SWIN_BASE(n,1) + 0x800000 + (x)))))
+
+
+
+#define HUB_L(x) (*((volatile typeof(*x) *)x))
+#define HUB_S(x,d) (*((volatile typeof(*x) *)x) = (d))
+
+#define REMOTE_HUB_L(n, a) HUB_L(REMOTE_HUB_ADDR((n), (a)))
+#define REMOTE_HUB_S(n, a, d) HUB_S(REMOTE_HUB_ADDR((n), (a)), (d))
+
#endif /* _ASM_IA64_SN_ADDRS_H */
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