Flesh out the sparc64 port considerably. This contains:

- mostly complete kernel pmap support, and tested but currently turned
  off userland pmap support
- low level assembly language trap, context switching and support code
- fully implemented atomic.h and supporting cpufunc.h
- some support for kernel debugging with ddb
- various header tweaks and filling out of machine dependent structures

1 files changed, 220 insertions, 0 deletions

diff --git a/sys/sparc64/include/tsb.h b/sys/sparc64/include/tsb.h
new file mode 100644
index 0000000..5bc46cf
--- /dev/null
+++ b/sys/sparc64/include/tsb.h
@@ -0,0 +1,220 @@
+/*-
+ * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Berkeley Software Design Inc's name may not be used to endorse or
+ *    promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp
+ * $FreeBSD$
+ */
+
+#ifndef	_MACHINE_TSB_H_
+#define	_MACHINE_TSB_H_
+
+#define	TSB_KERNEL_MIN_ADDRESS		(0x6e000000000)
+#define	TSB_USER_MIN_ADDRESS		(0x6f000000000)
+
+#define	TSB_MASK_WIDTH			(6)
+
+#define	TSB_PRIMARY_BUCKET_SHIFT	(2)
+#define	TSB_PRIMARY_BUCKET_SIZE		(1 << TSB_PRIMARY_BUCKET_SHIFT)
+#define	TSB_PRIMARY_BUCKET_MASK		(TSB_PRIMARY_BUCKET_SIZE - 1)
+#define	TSB_SECONDARY_BUCKET_SHIFT	(3)
+#define	TSB_SECONDARY_BUCKET_SIZE	(1 << TSB_SECONDARY_BUCKET_SHIFT)
+#define	TSB_SECONDARY_BUCKET_MASK	(TSB_SECONDARY_BUCKET_SIZE - 1)
+
+#define	TSB_SECONDARY_STTE_SHIFT \
+	(STTE_SHIFT + TSB_SECONDARY_BUCKET_SHIFT)
+#define	TSB_SECONDARY_STTE_MASK		(1 << TSB_SECONDARY_STTE_SHIFT)
+
+#define	TSB_LEVEL1_BUCKET_MASK \
+	((TSB_SECONDARY_BUCKET_MASK & ~TSB_PRIMARY_BUCKET_MASK) << \
+	    (PAGE_SHIFT - TSB_PRIMARY_BUCKET_SHIFT))
+#define	TSB_LEVEL1_BUCKET_SHIFT \
+	(TSB_BUCKET_SPREAD_SHIFT + \
+	    (TSB_SECONDARY_BUCKET_SHIFT - TSB_PRIMARY_BUCKET_SHIFT))
+
+#define	TSB_BUCKET_SPREAD_SHIFT		(2)
+
+#define	TSB_DEPTH			(7)
+
+#define	TSB_KERNEL_PAGES		(1)
+#define	TSB_KERNEL_SIZE			(TSB_KERNEL_PAGES * PAGE_SIZE_4M)
+#define	TSB_KERNEL_MB			(512)
+#define	TSB_KERNEL_VM_RANGE		(TSB_KERNEL_MB * (1 << 20))
+#define	TSB_KERNEL_RANGE \
+	((TSB_KERNEL_VM_RANGE / PAGE_SIZE) * sizeof (struct stte))
+#define	TSB_KERNEL_MASK \
+	((TSB_KERNEL_RANGE / sizeof (struct stte)) - 1)
+
+#define	TSB_1M_STTE_SHIFT		(21)
+#define	TSB_1M_STTE_SIZE		(1 << TSB_1M_SHIFT)
+
+#define	TSB_SIZE_REG			(7)
+
+extern vm_offset_t tsb_kernel_phys;
+
+static __inline struct stte *
+tsb_base(u_int level)
+{
+	vm_offset_t base;
+	size_t len;
+
+	if (level == 0)
+		base = TSB_USER_MIN_ADDRESS;
+	else {
+		len = 1UL << ((level * TSB_BUCKET_SPREAD_SHIFT) +
+		    TSB_MASK_WIDTH + TSB_SECONDARY_BUCKET_SHIFT +
+		    STTE_SHIFT);
+		base = TSB_USER_MIN_ADDRESS + len;
+	}
+	return (struct stte *)base;
+}
+
+static __inline u_long
+tsb_bucket_shift(u_int level)
+{
+	return (level == 0 ?
+	    TSB_PRIMARY_BUCKET_SHIFT : TSB_SECONDARY_BUCKET_SHIFT);
+}
+
+static __inline u_long
+tsb_bucket_size(u_int level)
+{
+	return (1UL << tsb_bucket_shift(level));
+}
+
+static __inline u_long
+tsb_bucket_mask(u_int level)
+{
+	return (tsb_bucket_size(level) - 1);
+}
+
+static __inline u_long
+tsb_mask_width(u_int level)
+{
+	return ((level * TSB_BUCKET_SPREAD_SHIFT) + TSB_MASK_WIDTH);
+}
+
+static __inline u_long
+tsb_mask(u_int level)
+{
+	return ((1UL << tsb_mask_width(level)) - 1);
+}
+
+static __inline u_int
+tsb_tlb_slot(u_int level)
+{
+	return (level == 0 ?
+	    TLB_SLOT_TSB_USER_PRIMARY : TLB_SLOT_TSB_USER_SECONDARY);
+}
+
+static __inline vm_offset_t
+tsb_stte_vtophys(pmap_t pm, struct stte *stp)
+{
+	vm_offset_t va;
+	u_long data;
+
+	va = (vm_offset_t)stp;
+	if (pm == kernel_pmap)
+		return (tsb_kernel_phys +
+		    ((va - TSB_KERNEL_MIN_ADDRESS) << STTE_SHIFT));
+
+	if (trunc_page(va) == TSB_USER_MIN_ADDRESS)
+		data = pm->pm_stte.st_tte.tte_data;
+	else
+		data = ldxa(TLB_DAR_SLOT(tsb_tlb_slot(1)),
+		    ASI_DTLB_DATA_ACCESS_REG);
+	return ((vm_offset_t)((TD_PA(data)) + (va & PAGE_MASK)));
+}
+
+static __inline struct stte *
+tsb_vpntobucket(vm_offset_t vpn, u_int level)
+{
+	return (tsb_base(level) +
+	    ((vpn & tsb_mask(level)) << tsb_bucket_shift(level)));
+}
+
+static __inline struct stte *
+tsb_vtobucket(vm_offset_t va, u_int level)
+{
+	return (tsb_vpntobucket(va >> PAGE_SHIFT, level));
+}
+
+static __inline struct stte *
+tsb_kvpntostte(vm_offset_t vpn)
+{
+	struct stte *stp;
+
+	stp = (struct stte *)(TSB_KERNEL_MIN_ADDRESS +
+	    ((vpn & TSB_KERNEL_MASK) << STTE_SHIFT));
+	return (stp);
+}
+
+static __inline struct stte *
+tsb_kvtostte(vm_offset_t va)
+{
+	return (tsb_kvpntostte(va >> PAGE_SHIFT));
+}
+
+static __inline void
+tsb_tte_enter_kernel(vm_offset_t va, struct tte tte)
+{
+	struct stte *stp;
+
+	stp = tsb_kvtostte(va);
+	stp->st_tte = tte;
+#if 1
+	pv_insert(kernel_pmap, TD_PA(tte.tte_data), va, stp);
+#endif
+}
+
+static __inline void
+tsb_remove_kernel(vm_offset_t va)
+{
+	struct stte *stp;
+
+	stp = tsb_kvtostte(va);
+	tte_invalidate(&stp->st_tte);
+#if 1
+	pv_remove_virt(stp);
+#endif
+}
+
+struct	stte *tsb_get_bucket(pmap_t pm, u_int level, vm_offset_t va,
+			     int allocate);
+int	tsb_miss(pmap_t pm, u_int type, struct mmuframe *mf);
+struct	tte tsb_page_alloc(pmap_t pm, vm_offset_t va);
+void	tsb_page_fault(pmap_t pm, int level, vm_offset_t va, struct stte *stp);
+void	tsb_page_init(void *va, int level);
+struct	stte *tsb_stte_lookup(pmap_t pm, vm_offset_t va);
+struct	stte *tsb_stte_promote(pmap_t pm, vm_offset_t va, struct stte *stp);
+void	tsb_stte_remove(struct stte *stp);
+struct	stte *tsb_tte_enter(pmap_t pm, vm_offset_t va, struct tte tte);
+void	tsb_tte_local_remove(struct tte *tp);
+
+extern vm_offset_t tsb_bootstrap_pages[];
+extern int tsb_bootstrap_index;
+
+#endif /* !_MACHINE_TSB_H_ */