Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-mips/mach-ip27/cpu-feature-overrides.h b/include/asm-mips/mach-ip27/cpu-feature-overrides.h
new file mode 100644
index 0000000..fe96d73
--- /dev/null
+++ b/include/asm-mips/mach-ip27/cpu-feature-overrides.h
@@ -0,0 +1,39 @@
+/*
+ * 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) 2003 Ralf Baechle
+ */
+#ifndef __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H
+
+/*
+ * IP27 only comes with R10000 family processors all using the same config
+ */
+#define cpu_has_watch 1
+#define cpu_has_mips16 0
+#define cpu_has_divec 0
+#define cpu_has_vce 0
+#define cpu_has_cache_cdex_p 0
+#define cpu_has_cache_cdex_s 0
+#define cpu_has_prefetch 1
+#define cpu_has_mcheck 0
+#define cpu_has_ejtag 0
+
+#define cpu_has_llsc 1
+#define cpu_has_vtag_icache 0
+#define cpu_has_dc_aliases 0
+#define cpu_has_ic_fills_f_dc 0
+#define cpu_icache_snoops_remote_store 1
+
+#define cpu_has_nofpuex 0
+#define cpu_has_64bits 1
+
+#define cpu_has_subset_pcaches 1
+
+#define cpu_dcache_line_size() 32
+#define cpu_icache_line_size() 64
+#define cpu_scache_line_size() 128
+
+#endif /* __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H */
diff --git a/include/asm-mips/mach-ip27/irq.h b/include/asm-mips/mach-ip27/irq.h
new file mode 100644
index 0000000..806213c
--- /dev/null
+++ b/include/asm-mips/mach-ip27/irq.h
@@ -0,0 +1,22 @@
+/*
+ * 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) 1999, 2000, 01, 02, 03 by Ralf Baechle
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ * Copyright (C) 2001 Kanoj Sarcar
+ */
+#ifndef __ASM_MACH_IP27_IRQ_H
+#define __ASM_MACH_IP27_IRQ_H
+
+#include <asm/sn/arch.h>
+
+/*
+ * A hardwired interrupt number is completly stupid for this system - a
+ * large configuration might have thousands if not tenthousands of
+ * interrupts.
+ */
+#define NR_IRQS 256
+
+#endif /* __ASM_MACH_IP27_IRQ_H */
diff --git a/include/asm-mips/mach-ip27/mangle-port.h b/include/asm-mips/mach-ip27/mangle-port.h
new file mode 100644
index 0000000..f76c448
--- /dev/null
+++ b/include/asm-mips/mach-ip27/mangle-port.h
@@ -0,0 +1,16 @@
+/*
+ * 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) 2003, 2004 Ralf Baechle
+ */
+#ifndef __ASM_MACH_IP27_MANGLE_PORT_H
+#define __ASM_MACH_IP27_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port) (port)
+#define __swizzle_addr_w(port) ((port) ^ 2)
+#define __swizzle_addr_l(port) (port)
+#define __swizzle_addr_q(port) (port)
+
+#endif /* __ASM_MACH_IP27_MANGLE_PORT_H */
diff --git a/include/asm-mips/mach-ip27/mmzone.h b/include/asm-mips/mach-ip27/mmzone.h
new file mode 100644
index 0000000..d3f5663
--- /dev/null
+++ b/include/asm-mips/mach-ip27/mmzone.h
@@ -0,0 +1,36 @@
+#ifndef _ASM_MACH_MMZONE_H
+#define _ASM_MACH_MMZONE_H
+
+#include <asm/sn/addrs.h>
+#include <asm/sn/arch.h>
+#include <asm/sn/hub.h>
+
+#define pa_to_nid(addr) NASID_TO_COMPACT_NODEID(NASID_GET(addr))
+
+#define LEVELS_PER_SLICE 128
+
+struct slice_data {
+ unsigned long irq_alloc_mask[2];
+ unsigned long irq_enable_mask[2];
+ int level_to_irq[LEVELS_PER_SLICE];
+};
+
+struct hub_data {
+ kern_vars_t kern_vars;
+ DECLARE_BITMAP(h_bigwin_used, HUB_NUM_BIG_WINDOW);
+ cpumask_t h_cpus;
+ unsigned long slice_map;
+ struct slice_data slice[2];
+};
+
+struct node_data {
+ struct pglist_data pglist;
+ struct hub_data hub;
+};
+
+extern struct node_data *__node_data[];
+
+#define NODE_DATA(n) (&__node_data[(n)]->pglist)
+#define hub_data(n) (&__node_data[(n)]->hub)
+
+#endif /* _ASM_MACH_MMZONE_H */
diff --git a/include/asm-mips/mach-ip27/spaces.h b/include/asm-mips/mach-ip27/spaces.h
new file mode 100644
index 0000000..e3b3fe3
--- /dev/null
+++ b/include/asm-mips/mach-ip27/spaces.h
@@ -0,0 +1,34 @@
+/*
+ * 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) 1996, 99 Ralf Baechle
+ * Copyright (C) 2000, 2002 Maciej W. Rozycki
+ * Copyright (C) 1990, 1999 by Silicon Graphics, Inc.
+ */
+#ifndef _ASM_MACH_IP27_SPACES_H
+#define _ASM_MACH_IP27_SPACES_H
+
+/*
+ * IP27 uses the R10000's uncached attribute feature. Attribute 3 selects
+ * uncached memory addressing.
+ */
+#define CAC_BASE 0xa800000000000000
+
+#define HSPEC_BASE 0x9000000000000000
+#define IO_BASE 0x9200000000000000
+#define MSPEC_BASE 0x9400000000000000
+#define UNCAC_BASE 0x9600000000000000
+
+#define TO_PHYS(x) ( ((x) & TO_PHYS_MASK))
+#define TO_CAC(x) (CAC_BASE | ((x) & TO_PHYS_MASK))
+#define TO_UNCAC(x) (UNCAC_BASE | ((x) & TO_PHYS_MASK))
+#define TO_MSPEC(x) (MSPEC_BASE | ((x) & TO_PHYS_MASK))
+#define TO_HSPEC(x) (HSPEC_BASE | ((x) & TO_PHYS_MASK))
+
+#define PAGE_OFFSET CAC_BASE
+
+#define HIGHMEM_START (~0UL)
+
+#endif /* _ASM_MACH_IP27_SPACES_H */
diff --git a/include/asm-mips/mach-ip27/topology.h b/include/asm-mips/mach-ip27/topology.h
new file mode 100644
index 0000000..a70a812
--- /dev/null
+++ b/include/asm-mips/mach-ip27/topology.h
@@ -0,0 +1,38 @@
+#ifndef _ASM_MACH_TOPOLOGY_H
+#define _ASM_MACH_TOPOLOGY_H 1
+
+#include <asm/sn/arch.h>
+#include <asm/sn/hub.h>
+#include <asm/mmzone.h>
+
+#define cpu_to_node(cpu) (cpu_data[(cpu)].p_nodeid)
+#define parent_node(node) (node)
+#define node_to_cpumask(node) (hub_data(node)->h_cpus)
+#define node_to_first_cpu(node) (first_cpu(node_to_cpumask(node)))
+#define pcibus_to_cpumask(bus) (cpu_online_map)
+
+extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
+
+#define node_distance(from, to) (__node_distances[(from)][(to)])
+
+/* sched_domains SD_NODE_INIT for SGI IP27 machines */
+#define SD_NODE_INIT (struct sched_domain) { \
+ .span = CPU_MASK_NONE, \
+ .parent = NULL, \
+ .groups = NULL, \
+ .min_interval = 8, \
+ .max_interval = 32, \
+ .busy_factor = 32, \
+ .imbalance_pct = 125, \
+ .cache_hot_time = (10*1000), \
+ .cache_nice_tries = 1, \
+ .per_cpu_gain = 100, \
+ .flags = SD_LOAD_BALANCE \
+ | SD_BALANCE_EXEC \
+ | SD_WAKE_BALANCE, \
+ .last_balance = jiffies, \
+ .balance_interval = 1, \
+ .nr_balance_failed = 0, \
+}
+
+#endif /* _ASM_MACH_TOPOLOGY_H */