Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 431 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 000000000..66814f8ba
--- /dev/null
+++ b/arch/mips/include/asm/sn/addrs.h
@@ -0,0 +1,431 @@
+/*
+ * 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 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 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)
+
+/* 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 */